layers: DrawState changes to support resource binding updates
diff --git a/layers/draw_state.c b/layers/draw_state.c
deleted file mode 100644
index 5148be8..0000000
--- a/layers/draw_state.c
+++ /dev/null
@@ -1,2971 +0,0 @@
-/*
- * XGL
- *
- * Copyright (C) 2014 LunarG, Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include "loader_platform.h"
-#include "xgl_dispatch_table_helper.h"
-#include "xgl_struct_string_helper.h"
-#include "xgl_struct_graphviz_helper.h"
-#include "xgl_struct_size_helper.h"
-#include "draw_state.h"
-#include "layers_config.h"
-// The following is #included again to catch certain OS-specific functions
-// being used:
-#include "loader_platform.h"
-#include "layers_msg.h"
-
-static XGL_LAYER_DISPATCH_TABLE nextTable;
-static XGL_BASE_LAYER_OBJECT *pCurObj;
-static LOADER_PLATFORM_THREAD_ONCE_DECLARATION(g_initOnce);
-// TODO : This can be much smarter, using separate locks for separate global data
-static int globalLockInitialized = 0;
-static loader_platform_thread_mutex globalLock;
-#define ALLOC_DEBUG 0
-#if ALLOC_DEBUG
-static uint64_t g_alloc_count = 0;
-static uint64_t g_free_count = 0;
-#endif
-#define MAX_TID 513
-static loader_platform_thread_id g_tidMapping[MAX_TID] = {0};
-static uint32_t g_maxTID = 0;
-// Map actual TID to an index value and return that index
-//  This keeps TIDs in range from 0-MAX_TID and simplifies compares between runs
-static uint32_t getTIDIndex() {
-    loader_platform_thread_id tid = loader_platform_get_thread_id();
-    for (uint32_t i = 0; i < g_maxTID; i++) {
-        if (tid == g_tidMapping[i])
-            return i;
-    }
-    // Don't yet have mapping, set it and return newly set index
-    uint32_t retVal = (uint32_t) g_maxTID;
-    g_tidMapping[g_maxTID++] = tid;
-    assert(g_maxTID < MAX_TID);
-    return retVal;
-}
-// Return a string representation of CMD_TYPE enum
-static char* cmdTypeToString(CMD_TYPE cmd)
-{
-    switch (cmd)
-    {
-        case CMD_BINDPIPELINE:
-            return "CMD_BINDPIPELINE";
-        case CMD_BINDPIPELINEDELTA:
-            return "CMD_BINDPIPELINEDELTA";
-        case CMD_BINDDYNAMICSTATEOBJECT:
-            return "CMD_BINDDYNAMICSTATEOBJECT";
-        case CMD_BINDDESCRIPTORSET:
-            return "CMD_BINDDESCRIPTORSET";
-        case CMD_BINDINDEXBUFFER:
-            return "CMD_BINDINDEXBUFFER";
-        case CMD_BINDVERTEXBUFFER:
-            return "CMD_BINDVERTEXBUFFER";
-        case CMD_DRAW:
-            return "CMD_DRAW";
-        case CMD_DRAWINDEXED:
-            return "CMD_DRAWINDEXED";
-        case CMD_DRAWINDIRECT:
-            return "CMD_DRAWINDIRECT";
-        case CMD_DRAWINDEXEDINDIRECT:
-            return "CMD_DRAWINDEXEDINDIRECT";
-        case CMD_DISPATCH:
-            return "CMD_DISPATCH";
-        case CMD_DISPATCHINDIRECT:
-            return "CMD_DISPATCHINDIRECT";
-        case CMD_COPYBUFFER:
-            return "CMD_COPYBUFFER";
-        case CMD_COPYIMAGE:
-            return "CMD_COPYIMAGE";
-        case CMD_COPYBUFFERTOIMAGE:
-            return "CMD_COPYBUFFERTOIMAGE";
-        case CMD_COPYIMAGETOBUFFER:
-            return "CMD_COPYIMAGETOBUFFER";
-        case CMD_CLONEIMAGEDATA:
-            return "CMD_CLONEIMAGEDATA";
-        case CMD_UPDATEBUFFER:
-            return "CMD_UPDATEBUFFER";
-        case CMD_FILLBUFFER:
-            return "CMD_FILLBUFFER";
-        case CMD_CLEARCOLORIMAGE:
-            return "CMD_CLEARCOLORIMAGE";
-        case CMD_CLEARCOLORIMAGERAW:
-            return "CMD_CLEARCOLORIMAGERAW";
-        case CMD_CLEARDEPTHSTENCIL:
-            return "CMD_CLEARDEPTHSTENCIL";
-        case CMD_RESOLVEIMAGE:
-            return "CMD_RESOLVEIMAGE";
-        case CMD_SETEVENT:
-            return "CMD_SETEVENT";
-        case CMD_RESETEVENT:
-            return "CMD_RESETEVENT";
-        case CMD_WAITEVENTS:
-            return "CMD_WAITEVENTS";
-        case CMD_PIPELINEBARRIER:
-            return "CMD_PIPELINEBARRIER";
-        case CMD_BEGINQUERY:
-            return "CMD_BEGINQUERY";
-        case CMD_ENDQUERY:
-            return "CMD_ENDQUERY";
-        case CMD_RESETQUERYPOOL:
-            return "CMD_RESETQUERYPOOL";
-        case CMD_WRITETIMESTAMP:
-            return "CMD_WRITETIMESTAMP";
-        case CMD_INITATOMICCOUNTERS:
-            return "CMD_INITATOMICCOUNTERS";
-        case CMD_LOADATOMICCOUNTERS:
-            return "CMD_LOADATOMICCOUNTERS";
-        case CMD_SAVEATOMICCOUNTERS:
-            return "CMD_SAVEATOMICCOUNTERS";
-        case CMD_BEGINRENDERPASS:
-            return "CMD_BEGINRENDERPASS";
-        case CMD_ENDRENDERPASS:
-            return "CMD_ENDRENDERPASS";
-        case CMD_DBGMARKERBEGIN:
-            return "CMD_DBGMARKERBEGIN";
-        case CMD_DBGMARKEREND:
-            return "CMD_DBGMARKEREND";
-        default:
-            return "UNKNOWN";
-    }
-}
-// Block of code at start here for managing/tracking Pipeline state that this layer cares about
-// Just track 2 shaders for now
-#define XGL_NUM_GRAPHICS_SHADERS XGL_SHADER_STAGE_COMPUTE
-#define MAX_SLOTS 2048
-#define NUM_COMMAND_BUFFERS_TO_DISPLAY 10
-
-static uint64_t g_drawCount[NUM_DRAW_TYPES] = {0, 0, 0, 0};
-
-// TODO : Should be tracking lastBound per cmdBuffer and when draws occur, report based on that cmd buffer lastBound
-//   Then need to synchronize the accesses based on cmd buffer so that if I'm reading state on one cmd buffer, updates
-//   to that same cmd buffer by separate thread are not changing state from underneath us
-static PIPELINE_NODE*    g_pPipelineHead = NULL;
-static SAMPLER_NODE*     g_pSamplerHead = NULL;
-static IMAGE_NODE*       g_pImageHead = NULL;
-static BUFFER_NODE*      g_pBufferHead = NULL;
-static GLOBAL_CB_NODE*   g_pCmdBufferHead = NULL;
-// Track the last cmd buffer touched by this thread
-static XGL_CMD_BUFFER    g_lastCmdBuffer[MAX_TID] = {NULL};
-// Track the last group of CBs touched for displaying to dot file
-static GLOBAL_CB_NODE*   g_pLastTouchedCB[NUM_COMMAND_BUFFERS_TO_DISPLAY] = {NULL};
-static uint32_t g_lastTouchedCBIndex = 0;
-// Track the last global DrawState of interest touched by any thread
-static GLOBAL_CB_NODE*        g_lastGlobalCB = NULL;
-static PIPELINE_NODE*         g_lastBoundPipeline = NULL;
-static DYNAMIC_STATE_NODE*    g_lastBoundDynamicState[XGL_NUM_STATE_BIND_POINT] = {NULL};
-static XGL_DESCRIPTOR_SET     g_lastBoundDescriptorSet = NULL;
-#define MAX_BINDING 0xFFFFFFFF // Default vtxBinding value in CB Node to identify if no vtxBinding set
-
-static DYNAMIC_STATE_NODE* g_pDynamicStateHead[XGL_NUM_STATE_BIND_POINT] = {0};
-
-static void insertDynamicState(const XGL_DYNAMIC_STATE_OBJECT state, const GENERIC_HEADER* pCreateInfo, XGL_STATE_BIND_POINT bindPoint)
-{
-    loader_platform_thread_lock_mutex(&globalLock);
-    // Insert new node at head of appropriate LL
-    DYNAMIC_STATE_NODE* pStateNode = (DYNAMIC_STATE_NODE*)malloc(sizeof(DYNAMIC_STATE_NODE));
-#if ALLOC_DEBUG
-    printf("Alloc1 #%lu pStateNode addr(%p)\n", ++g_alloc_count, (void*)pStateNode);
-#endif
-    pStateNode->pNext = g_pDynamicStateHead[bindPoint];
-    g_pDynamicStateHead[bindPoint] = pStateNode;
-    pStateNode->stateObj = state;
-    pStateNode->pCreateInfo = (GENERIC_HEADER*)malloc(get_dynamic_struct_size(pCreateInfo));
-#if ALLOC_DEBUG
-    printf("Alloc2 #%lu pStateNode->pCreateInfo addr(%p)\n", ++g_alloc_count, (void*)pStateNode->pCreateInfo);
-#endif
-    memcpy(pStateNode->pCreateInfo, pCreateInfo, get_dynamic_struct_size(pCreateInfo));
-    // VP has embedded ptr so need to handle that as special case
-    if (XGL_STRUCTURE_TYPE_DYNAMIC_VP_STATE_CREATE_INFO == pCreateInfo->sType) {
-        XGL_DYNAMIC_VP_STATE_CREATE_INFO* pVPCI = (XGL_DYNAMIC_VP_STATE_CREATE_INFO*)pStateNode->pCreateInfo;
-        XGL_VIEWPORT** ppViewports = (XGL_VIEWPORT**)&pVPCI->pViewports;
-        size_t vpSize = sizeof(XGL_VIEWPORT) * pVPCI->viewportAndScissorCount;
-        if (vpSize) {
-            *ppViewports = (XGL_VIEWPORT*)malloc(vpSize);
-#if ALLOC_DEBUG
-            printf("Alloc3 #%lu *ppViewports addr(%p)\n", ++g_alloc_count, (void*)*ppViewports);
-#endif
-            memcpy(*ppViewports, ((XGL_DYNAMIC_VP_STATE_CREATE_INFO*)pCreateInfo)->pViewports, vpSize);
-        }
-        XGL_RECT** ppScissors = (XGL_RECT**)&pVPCI->pScissors;
-        size_t scSize = sizeof(XGL_RECT) * pVPCI->viewportAndScissorCount;
-        if (scSize) {
-            *ppScissors = (XGL_RECT*)malloc(scSize);
-#if ALLOC_DEBUG
-            printf("Alloc4 #%lu *ppScissors addr(%p)\n", ++g_alloc_count, (void*)*ppScissors);
-#endif
-            memcpy(*ppScissors, ((XGL_DYNAMIC_VP_STATE_CREATE_INFO*)pCreateInfo)->pScissors, scSize);
-        }
-    }
-    loader_platform_thread_unlock_mutex(&globalLock);
-}
-// Free all allocated nodes for Dynamic State objs
-static void freeDynamicState()
-{
-    for (uint32_t i = 0; i < XGL_NUM_STATE_BIND_POINT; i++) {
-        DYNAMIC_STATE_NODE* pStateNode = g_pDynamicStateHead[i];
-        DYNAMIC_STATE_NODE* pFreeMe = pStateNode;
-        while (pStateNode) {
-            pFreeMe = pStateNode;
-            pStateNode = pStateNode->pNext;
-            assert(pFreeMe->pCreateInfo);
-            if (XGL_STRUCTURE_TYPE_DYNAMIC_VP_STATE_CREATE_INFO == pFreeMe->pCreateInfo->sType) {
-                XGL_DYNAMIC_VP_STATE_CREATE_INFO* pVPCI = (XGL_DYNAMIC_VP_STATE_CREATE_INFO*)pFreeMe->pCreateInfo;
-                if (pVPCI->pViewports) {
-                    void** ppToFree = (void**)&pVPCI->pViewports;
-#if ALLOC_DEBUG
-                    printf("Free3 #%lu pViewports addr(%p)\n", ++g_free_count, (void*)*ppToFree);
-#endif
-                    free(*ppToFree);
-                }
-                if (pVPCI->pScissors) {
-                    void** ppToFree = (void**)&pVPCI->pScissors;
-#if ALLOC_DEBUG
-                    printf("Free4 #%lu pScissors addr(%p)\n", ++g_free_count, (void*)*ppToFree);
-#endif
-                    free(*ppToFree);
-                }
-            }
-#if ALLOC_DEBUG
-            printf("Free2 #%lu pStateNode->CreateInfo addr(%p)\n", ++g_free_count, (void*)pFreeMe->pCreateInfo);
-#endif
-            free(pFreeMe->pCreateInfo);
-#if ALLOC_DEBUG
-            printf("Free1 #%lu pStateNode addr(%p)\n", ++g_free_count, (void*)pFreeMe);
-#endif
-            free(pFreeMe);
-        }
-        g_pDynamicStateHead[i] = NULL;
-    }
-}
-// Free all sampler nodes
-static void freeSamplers()
-{
-    SAMPLER_NODE* pSampler = g_pSamplerHead;
-    SAMPLER_NODE* pFreeMe = pSampler;
-    while (pSampler) {
-        pFreeMe = pSampler;
-        pSampler = pSampler->pNext;
-#if ALLOC_DEBUG
-        printf("Free25 #%lu pSampler addr(%p)\n", ++g_free_count, (void*)pFreeMe);
-#endif
-        free(pFreeMe);
-    }
-    g_pSamplerHead = NULL;
-}
-static XGL_IMAGE_VIEW_CREATE_INFO* getImageViewCreateInfo(XGL_IMAGE_VIEW view)
-{
-    loader_platform_thread_lock_mutex(&globalLock);
-    IMAGE_NODE* pTrav = g_pImageHead;
-    while (pTrav) {
-        if (view == pTrav->image) {
-            loader_platform_thread_unlock_mutex(&globalLock);
-            return &pTrav->createInfo;
-        }
-        pTrav = pTrav->pNext;
-    }
-    loader_platform_thread_unlock_mutex(&globalLock);
-    return NULL;
-}
-// Free all image nodes
-static void freeImages()
-{
-    IMAGE_NODE* pImage = g_pImageHead;
-    IMAGE_NODE* pFreeMe = pImage;
-    while (pImage) {
-        pFreeMe = pImage;
-        pImage = pImage->pNext;
-#if ALLOC_DEBUG
-        printf("Free22 #%lu pImage addr(%p)\n", ++g_free_count, (void*)pFreeMe);
-#endif
-        free(pFreeMe);
-    }
-    g_pImageHead = NULL;
-}
-static XGL_BUFFER_VIEW_CREATE_INFO* getBufferViewCreateInfo(XGL_BUFFER_VIEW view)
-{
-    loader_platform_thread_lock_mutex(&globalLock);
-    BUFFER_NODE* pTrav = g_pBufferHead;
-    while (pTrav) {
-        if (view == pTrav->buffer) {
-            loader_platform_thread_unlock_mutex(&globalLock);
-            return &pTrav->createInfo;
-        }
-        pTrav = pTrav->pNext;
-    }
-    loader_platform_thread_unlock_mutex(&globalLock);
-    return NULL;
-}
-// Free all buffer nodes
-static void freeBuffers()
-{
-    BUFFER_NODE* pBuffer = g_pBufferHead;
-    BUFFER_NODE* pFreeMe = pBuffer;
-    while (pBuffer) {
-        pFreeMe = pBuffer;
-        pBuffer = pBuffer->pNext;
-#if ALLOC_DEBUG
-    printf("Free21 #%lu pBuffer addr(%p)\n", ++g_free_count, (void*)pFreeMe);
-#endif
-        free(pFreeMe);
-    }
-    g_pBufferHead = NULL;
-}
-static GLOBAL_CB_NODE* getCBNode(XGL_CMD_BUFFER cb);
-
-static void updateCBTracking(XGL_CMD_BUFFER cb)
-{
-    g_lastCmdBuffer[getTIDIndex()] = cb;
-    GLOBAL_CB_NODE* pCB = getCBNode(cb);
-    loader_platform_thread_lock_mutex(&globalLock);
-    g_lastGlobalCB = pCB;
-    // TODO : This is a dumb algorithm. Need smart LRU that drops off oldest
-    for (uint32_t i = 0; i < NUM_COMMAND_BUFFERS_TO_DISPLAY; i++) {
-        if (g_pLastTouchedCB[i] == pCB) {
-            loader_platform_thread_unlock_mutex(&globalLock);
-            return;
-        }
-    }
-    g_pLastTouchedCB[g_lastTouchedCBIndex++] = pCB;
-    g_lastTouchedCBIndex = g_lastTouchedCBIndex % NUM_COMMAND_BUFFERS_TO_DISPLAY;
-    loader_platform_thread_unlock_mutex(&globalLock);
-}
-
-// Print the last bound dynamic state
-static void printDynamicState(const XGL_CMD_BUFFER cb)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cb);
-    if (pCB) {
-        loader_platform_thread_lock_mutex(&globalLock);
-        char str[4*1024];
-        for (uint32_t i = 0; i < XGL_NUM_STATE_BIND_POINT; i++) {
-            if (pCB->lastBoundDynamicState[i]) {
-                sprintf(str, "Reporting CreateInfo for currently bound %s object %p", string_XGL_STATE_BIND_POINT(i), pCB->lastBoundDynamicState[i]->stateObj);
-                layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, pCB->lastBoundDynamicState[i]->stateObj, 0, DRAWSTATE_NONE, "DS", str);
-                layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, pCB->lastBoundDynamicState[i]->stateObj, 0, DRAWSTATE_NONE, "DS", dynamic_display(pCB->lastBoundDynamicState[i]->pCreateInfo, "  "));
-                break;
-            }
-            else {
-                sprintf(str, "No dynamic state of type %s bound", string_XGL_STATE_BIND_POINT(i));
-                layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, NULL, 0, DRAWSTATE_NONE, "DS", str);
-            }
-        }
-        loader_platform_thread_unlock_mutex(&globalLock);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cb);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cb, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-}
-// Retrieve pipeline node ptr for given pipeline object
-static PIPELINE_NODE *getPipeline(XGL_PIPELINE pipeline)
-{
-    loader_platform_thread_lock_mutex(&globalLock);
-    PIPELINE_NODE *pTrav = g_pPipelineHead;
-    while (pTrav) {
-        if (pTrav->pipeline == pipeline) {
-            loader_platform_thread_unlock_mutex(&globalLock);
-            return pTrav;
-        }
-        pTrav = pTrav->pNext;
-    }
-    loader_platform_thread_unlock_mutex(&globalLock);
-    return NULL;
-}
-
-// For given sampler, return a ptr to its Create Info struct, or NULL if sampler not found
-static XGL_SAMPLER_CREATE_INFO* getSamplerCreateInfo(const XGL_SAMPLER sampler)
-{
-    loader_platform_thread_lock_mutex(&globalLock);
-    SAMPLER_NODE *pTrav = g_pSamplerHead;
-    while (pTrav) {
-        if (sampler == pTrav->sampler) {
-            loader_platform_thread_unlock_mutex(&globalLock);
-            return &pTrav->createInfo;
-        }
-        pTrav = pTrav->pNext;
-    }
-    loader_platform_thread_unlock_mutex(&globalLock);
-    return NULL;
-}
-
-// Init the pipeline mapping info based on pipeline create info LL tree
-//  Threading note : Calls to this function should wrapped in mutex
-static void initPipeline(PIPELINE_NODE *pPipeline, const XGL_GRAPHICS_PIPELINE_CREATE_INFO* pCreateInfo)
-{
-    // First init create info, we'll shadow the structs as we go down the tree
-    pPipeline->pCreateTree = (XGL_GRAPHICS_PIPELINE_CREATE_INFO*)malloc(sizeof(XGL_GRAPHICS_PIPELINE_CREATE_INFO));
-#if ALLOC_DEBUG
-    printf("Alloc5 #%lu pPipeline->pCreateTree addr(%p)\n", ++g_alloc_count, (void*)pPipeline->pCreateTree);
-#endif
-    memcpy(pPipeline->pCreateTree, pCreateInfo, sizeof(XGL_GRAPHICS_PIPELINE_CREATE_INFO));
-    GENERIC_HEADER *pShadowTrav = (GENERIC_HEADER*)pPipeline->pCreateTree;
-    GENERIC_HEADER *pTrav = (GENERIC_HEADER*)pCreateInfo->pNext;
-    while (pTrav) {
-        // Shadow the struct
-        pShadowTrav->pNext = (GENERIC_HEADER*)malloc(get_dynamic_struct_size(pTrav));
-#if ALLOC_DEBUG
-    printf("Alloc6 #%lu pShadowTrav->pNext addr(%p)\n", ++g_alloc_count, (void*)pShadowTrav->pNext);
-#endif
-        // Typically pNext is const so have to cast to avoid warning when we modify it here
-        memcpy((void*)pShadowTrav->pNext, pTrav, get_dynamic_struct_size(pTrav));
-        pShadowTrav = (GENERIC_HEADER*)pShadowTrav->pNext;
-        // Special copy of Vtx info as it has embedded array
-        if (XGL_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_CREATE_INFO == pTrav->sType) {
-            XGL_PIPELINE_VERTEX_INPUT_CREATE_INFO *pVICI = (XGL_PIPELINE_VERTEX_INPUT_CREATE_INFO*)pShadowTrav;
-            pPipeline->vtxBindingCount = pVICI->bindingCount;
-            uint32_t allocSize = pPipeline->vtxBindingCount * sizeof(XGL_VERTEX_INPUT_BINDING_DESCRIPTION);
-            if (allocSize) {
-                pPipeline->pVertexBindingDescriptions = (XGL_VERTEX_INPUT_BINDING_DESCRIPTION*)malloc(allocSize);
-#if ALLOC_DEBUG
-    printf("Alloc7 #%lu pPipeline->pVertexBindingDescriptions addr(%p)\n", ++g_alloc_count, (void*)pPipeline->pVertexBindingDescriptions);
-#endif
-                memcpy(pPipeline->pVertexBindingDescriptions, ((XGL_PIPELINE_VERTEX_INPUT_CREATE_INFO*)pTrav)->pVertexAttributeDescriptions, allocSize);
-            }
-            pPipeline->vtxAttributeCount = pVICI->attributeCount;
-            allocSize = pPipeline->vtxAttributeCount * sizeof(XGL_VERTEX_INPUT_ATTRIBUTE_DESCRIPTION);
-            if (allocSize) {
-                pPipeline->pVertexAttributeDescriptions = (XGL_VERTEX_INPUT_ATTRIBUTE_DESCRIPTION*)malloc(allocSize);
-#if ALLOC_DEBUG
-    printf("Alloc8 #%lu pPipeline->pVertexAttributeDescriptions addr(%p)\n", ++g_alloc_count, (void*)pPipeline->pVertexAttributeDescriptions);
-#endif
-                memcpy(pPipeline->pVertexAttributeDescriptions, ((XGL_PIPELINE_VERTEX_INPUT_CREATE_INFO*)pTrav)->pVertexAttributeDescriptions, allocSize);
-            }
-        }
-        else if (XGL_STRUCTURE_TYPE_PIPELINE_CB_STATE_CREATE_INFO == pTrav->sType) {
-            // Special copy of CB state as it has embedded array
-            XGL_PIPELINE_CB_STATE_CREATE_INFO *pCBCI = (XGL_PIPELINE_CB_STATE_CREATE_INFO*)pShadowTrav;
-            pPipeline->attachmentCount = pCBCI->attachmentCount;
-            uint32_t allocSize = pPipeline->attachmentCount * sizeof(XGL_PIPELINE_CB_ATTACHMENT_STATE);
-            if (allocSize) {
-                pPipeline->pAttachments = (XGL_PIPELINE_CB_ATTACHMENT_STATE*)malloc(allocSize);
-#if ALLOC_DEBUG
-    printf("Alloc9 #%lu pPipeline->pAttachments addr(%p)\n", ++g_alloc_count, (void*)pPipeline->pAttachments);
-#endif
-                XGL_PIPELINE_CB_ATTACHMENT_STATE** ppAttachments = (XGL_PIPELINE_CB_ATTACHMENT_STATE**)&pCBCI->pAttachments;
-                *ppAttachments = pPipeline->pAttachments;
-                memcpy(pPipeline->pAttachments, ((XGL_PIPELINE_CB_STATE_CREATE_INFO*)pTrav)->pAttachments, allocSize);
-            }
-        }
-        pTrav = (GENERIC_HEADER*)pTrav->pNext;
-    }
-}
-// Free the Pipeline nodes
-static void freePipelines()
-{
-    PIPELINE_NODE* pPipeline = g_pPipelineHead;
-    PIPELINE_NODE* pFreeMe = pPipeline;
-    while (pPipeline) {
-        pFreeMe = pPipeline;
-        GENERIC_HEADER* pShadowTrav = (GENERIC_HEADER*)pPipeline->pCreateTree;
-        GENERIC_HEADER* pShadowFree = pShadowTrav;
-        while (pShadowTrav) {
-            pShadowFree = pShadowTrav;
-            pShadowTrav = (GENERIC_HEADER*)pShadowTrav->pNext;
-            if (XGL_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_CREATE_INFO == pShadowFree->sType) {
-                // Free the vtx data shadowed directly into pPipeline node
-                if (pFreeMe->pVertexBindingDescriptions) {
-#if ALLOC_DEBUG
-                    printf("Free7 #%lu pVertexBindingDescriptions addr(%p)\n", ++g_free_count, (void*)pFreeMe->pVertexBindingDescriptions);
-#endif
-                    free(pFreeMe->pVertexBindingDescriptions);
-                }
-                if (pFreeMe->pVertexAttributeDescriptions) {
-#if ALLOC_DEBUG
-                    printf("Free8 #%lu pVertexAttributeDescriptions addr(%p)\n", ++g_free_count, (void*)pFreeMe->pVertexAttributeDescriptions);
-#endif
-                    free(pFreeMe->pVertexAttributeDescriptions);
-                }
-            }
-            else if (XGL_STRUCTURE_TYPE_PIPELINE_CB_STATE_CREATE_INFO == pShadowFree->sType) {
-                // Free attachment data shadowed into pPipeline node
-                if (pFreeMe->pAttachments) {
-#if ALLOC_DEBUG
-                    printf("Free9 #%lu pAttachments addr(%p)\n", ++g_free_count, (void*)pFreeMe->pAttachments);
-#endif
-                    free(pFreeMe->pAttachments);
-                }
-            }
-#if ALLOC_DEBUG
-            printf("Free5 & Free6 #%lu pShadowNode addr(%p)\n", ++g_free_count, (void*)pShadowFree);
-#endif
-            free(pShadowFree);
-        }
-        pPipeline = pPipeline->pNext;
-#if ALLOC_DEBUG
-        printf("Free23 & Free24 #%lu pPipeline addr(%p)\n", ++g_free_count, (void*)pFreeMe);
-#endif
-        free(pFreeMe);
-    }
-    g_pPipelineHead = NULL;
-}
-// Block of code at start here specifically for managing/tracking DSs
-
-// ptr to HEAD of LL of DS Regions
-static REGION_NODE* g_pRegionHead = NULL;
-// ptr to HEAD of LL of top-level Layouts
-static LAYOUT_NODE* g_pLayoutHead = NULL;
-
-// Return Region node ptr for specified region or else NULL
-static REGION_NODE* getRegionNode(XGL_DESCRIPTOR_REGION region)
-{
-    loader_platform_thread_lock_mutex(&globalLock);
-    REGION_NODE* pTrav = g_pRegionHead;
-    while (pTrav) {
-        if (pTrav->region == region) {
-            loader_platform_thread_unlock_mutex(&globalLock);
-            return pTrav;
-        }
-        pTrav = pTrav->pNext;
-    }
-    loader_platform_thread_unlock_mutex(&globalLock);
-    return NULL;
-}
-// Return Set node ptr for specified set or else NULL
-static SET_NODE* getSetNode(XGL_DESCRIPTOR_SET set)
-{
-    loader_platform_thread_lock_mutex(&globalLock);
-    REGION_NODE* pTrav = g_pRegionHead;
-    while (pTrav) {
-        SET_NODE* pSet = pTrav->pSets;
-        while (pSet) {
-            if (pSet->set == set) {
-                loader_platform_thread_unlock_mutex(&globalLock);
-                return pSet;
-            }
-            pSet = pSet->pNext;
-        }
-        pTrav = pTrav->pNext;
-    }
-    loader_platform_thread_unlock_mutex(&globalLock);
-    return NULL;
-}
-
-// Return XGL_TRUE if DS Exists and is within an xglBeginDescriptorRegionUpdate() call sequence, otherwise XGL_FALSE
-static bool32_t dsUpdateActive(XGL_DESCRIPTOR_SET ds)
-{
-    // Note, both "get" functions use global mutex so this guy does not
-    SET_NODE* pTrav = getSetNode(ds);
-    if (pTrav) {
-        REGION_NODE* pRegion = NULL;
-        pRegion = getRegionNode(pTrav->region);
-        if (pRegion) {
-            return pRegion->updateActive;
-        }
-    }
-    return XGL_FALSE;
-}
-
-static LAYOUT_NODE* getLayoutNode(XGL_DESCRIPTOR_SET_LAYOUT layout) {
-    loader_platform_thread_lock_mutex(&globalLock);
-    LAYOUT_NODE* pTrav = g_pLayoutHead;
-    while (pTrav) {
-        if (pTrav->layout == layout) {
-            loader_platform_thread_unlock_mutex(&globalLock);
-            return pTrav;
-        }
-        pTrav = pTrav->pNext;
-    }
-    loader_platform_thread_unlock_mutex(&globalLock);
-    return NULL;
-}
-
-static uint32_t getUpdateIndex(GENERIC_HEADER* pUpdateStruct)
-{
-    switch (pUpdateStruct->sType)
-    {
-        case XGL_STRUCTURE_TYPE_UPDATE_SAMPLERS:
-            return ((XGL_UPDATE_SAMPLERS*)pUpdateStruct)->index;
-        case XGL_STRUCTURE_TYPE_UPDATE_SAMPLER_TEXTURES:
-            return ((XGL_UPDATE_SAMPLER_TEXTURES*)pUpdateStruct)->index;
-        case XGL_STRUCTURE_TYPE_UPDATE_IMAGES:
-            return ((XGL_UPDATE_IMAGES*)pUpdateStruct)->index;
-        case XGL_STRUCTURE_TYPE_UPDATE_BUFFERS:
-            return ((XGL_UPDATE_BUFFERS*)pUpdateStruct)->index;
-        case XGL_STRUCTURE_TYPE_UPDATE_AS_COPY:
-            return ((XGL_UPDATE_AS_COPY*)pUpdateStruct)->descriptorIndex;
-        default:
-            // TODO : Flag specific error for this case
-            return 0;
-    }
-}
-
-static uint32_t getUpdateUpperBound(GENERIC_HEADER* pUpdateStruct)
-{
-    switch (pUpdateStruct->sType)
-    {
-        case XGL_STRUCTURE_TYPE_UPDATE_SAMPLERS:
-            return (((XGL_UPDATE_SAMPLERS*)pUpdateStruct)->count + ((XGL_UPDATE_SAMPLERS*)pUpdateStruct)->index);
-        case XGL_STRUCTURE_TYPE_UPDATE_SAMPLER_TEXTURES:
-            return (((XGL_UPDATE_SAMPLER_TEXTURES*)pUpdateStruct)->count + ((XGL_UPDATE_SAMPLER_TEXTURES*)pUpdateStruct)->index);
-        case XGL_STRUCTURE_TYPE_UPDATE_IMAGES:
-            return (((XGL_UPDATE_IMAGES*)pUpdateStruct)->count + ((XGL_UPDATE_IMAGES*)pUpdateStruct)->index);
-        case XGL_STRUCTURE_TYPE_UPDATE_BUFFERS:
-            return (((XGL_UPDATE_BUFFERS*)pUpdateStruct)->count + ((XGL_UPDATE_BUFFERS*)pUpdateStruct)->index);
-        case XGL_STRUCTURE_TYPE_UPDATE_AS_COPY:
-            // TODO : Need to understand this case better and make sure code is correct
-            return (((XGL_UPDATE_AS_COPY*)pUpdateStruct)->count + ((XGL_UPDATE_AS_COPY*)pUpdateStruct)->descriptorIndex);
-        default:
-            // TODO : Flag specific error for this case
-            return 0;
-    }
-}
-
-// Verify that the descriptor type in the update struct matches what's expected by the layout
-static bool32_t validateUpdateType(GENERIC_HEADER* pUpdateStruct, const LAYOUT_NODE* pLayout)//XGL_DESCRIPTOR_TYPE type)
-{
-    // First get actual type of update
-    XGL_DESCRIPTOR_TYPE actualType;
-    uint32_t i = 0;
-    uint32_t bound = getUpdateUpperBound(pUpdateStruct);
-    switch (pUpdateStruct->sType)
-    {
-        case XGL_STRUCTURE_TYPE_UPDATE_SAMPLERS:
-            actualType = XGL_DESCRIPTOR_TYPE_SAMPLER;
-            break;
-        case XGL_STRUCTURE_TYPE_UPDATE_SAMPLER_TEXTURES:
-            actualType = XGL_DESCRIPTOR_TYPE_SAMPLER_TEXTURE;
-            break;
-        case XGL_STRUCTURE_TYPE_UPDATE_IMAGES:
-            actualType = ((XGL_UPDATE_IMAGES*)pUpdateStruct)->descriptorType;
-            break;
-        case XGL_STRUCTURE_TYPE_UPDATE_BUFFERS:
-            actualType = ((XGL_UPDATE_BUFFERS*)pUpdateStruct)->descriptorType;
-            break;
-        case XGL_STRUCTURE_TYPE_UPDATE_AS_COPY:
-            actualType = ((XGL_UPDATE_AS_COPY*)pUpdateStruct)->descriptorType;
-            break;
-        default:
-            // TODO : Flag specific error for this case
-            return 0;
-    }
-    for (i = getUpdateIndex(pUpdateStruct); i < bound; i++) {
-        if (pLayout->pTypes[i] != actualType)
-            return 0;
-    }
-    return 1;
-}
-
-// Verify that update region for this update does not exceed max layout index for this type
-static bool32_t validateUpdateSize(GENERIC_HEADER* pUpdateStruct, uint32_t layoutIdx)
-{
-    if ((getUpdateUpperBound(pUpdateStruct)-1) > layoutIdx)
-        return 0;
-    return 1;
-}
-// Determine the update type, allocate a new struct of that type, shadow the given pUpdate
-//   struct into the new struct and return ptr to shadow struct cast as GENERIC_HEADER
-// NOTE : Calls to this function should be wrapped in mutex
-static GENERIC_HEADER* shadowUpdateNode(GENERIC_HEADER* pUpdate)
-{
-    GENERIC_HEADER* pNewNode = NULL;
-    size_t array_size = 0;
-    size_t base_array_size = 0;
-    size_t total_array_size = 0;
-    size_t baseBuffAddr = 0;
-    XGL_UPDATE_BUFFERS* pUBCI;
-    XGL_UPDATE_IMAGES* pUICI;
-    char str[1024];
-    switch (pUpdate->sType)
-    {
-        case XGL_STRUCTURE_TYPE_UPDATE_SAMPLERS:
-            pNewNode = (GENERIC_HEADER*)malloc(sizeof(XGL_UPDATE_SAMPLERS));
-#if ALLOC_DEBUG
-            printf("Alloc10 #%lu pNewNode addr(%p)\n", ++g_alloc_count, (void*)pNewNode);
-#endif
-            memcpy(pNewNode, pUpdate, sizeof(XGL_UPDATE_SAMPLERS));
-            array_size = sizeof(XGL_SAMPLER) * ((XGL_UPDATE_SAMPLERS*)pNewNode)->count;
-            ((XGL_UPDATE_SAMPLERS*)pNewNode)->pSamplers = (XGL_SAMPLER*)malloc(array_size);
-#if ALLOC_DEBUG
-            printf("Alloc11 #%lu pNewNode->pSamplers addr(%p)\n", ++g_alloc_count, (void*)((XGL_UPDATE_SAMPLERS*)pNewNode)->pSamplers);
-#endif
-            memcpy((XGL_SAMPLER*)((XGL_UPDATE_SAMPLERS*)pNewNode)->pSamplers, ((XGL_UPDATE_SAMPLERS*)pUpdate)->pSamplers, array_size);
-            break;
-        case XGL_STRUCTURE_TYPE_UPDATE_SAMPLER_TEXTURES:
-            pNewNode = (GENERIC_HEADER*)malloc(sizeof(XGL_UPDATE_SAMPLER_TEXTURES));
-#if ALLOC_DEBUG
-            printf("Alloc12 #%lu pNewNode addr(%p)\n", ++g_alloc_count, (void*)pNewNode);
-#endif
-            memcpy(pNewNode, pUpdate, sizeof(XGL_UPDATE_SAMPLER_TEXTURES));
-            array_size = sizeof(XGL_SAMPLER_IMAGE_VIEW_INFO) * ((XGL_UPDATE_SAMPLER_TEXTURES*)pNewNode)->count;
-            ((XGL_UPDATE_SAMPLER_TEXTURES*)pNewNode)->pSamplerImageViews = (XGL_SAMPLER_IMAGE_VIEW_INFO*)malloc(array_size);
-#if ALLOC_DEBUG
-            printf("Alloc13 #%lu pNewNode->pSamplerImageViews addr(%p)\n", ++g_alloc_count, (void*)((XGL_UPDATE_SAMPLER_TEXTURES*)pNewNode)->pSamplerImageViews);
-#endif
-            for (uint32_t i = 0; i < ((XGL_UPDATE_SAMPLER_TEXTURES*)pNewNode)->count; i++) {
-                memcpy((XGL_SAMPLER_IMAGE_VIEW_INFO*)&((XGL_UPDATE_SAMPLER_TEXTURES*)pNewNode)->pSamplerImageViews[i], &((XGL_UPDATE_SAMPLER_TEXTURES*)pUpdate)->pSamplerImageViews[i], sizeof(XGL_SAMPLER_IMAGE_VIEW_INFO));
-                ((XGL_SAMPLER_IMAGE_VIEW_INFO*)((XGL_UPDATE_SAMPLER_TEXTURES*)pNewNode)->pSamplerImageViews)[i].pImageView = malloc(sizeof(XGL_IMAGE_VIEW_ATTACH_INFO));
-#if ALLOC_DEBUG
-                printf("Alloc14 #%lu pSamplerImageViews)[%u].pImageView addr(%p)\n", ++g_alloc_count, i, (void*)((XGL_SAMPLER_IMAGE_VIEW_INFO*)((XGL_UPDATE_SAMPLER_TEXTURES*)pNewNode)->pSamplerImageViews)[i].pImageView);
-#endif
-                memcpy((XGL_IMAGE_VIEW_ATTACH_INFO*)((XGL_UPDATE_SAMPLER_TEXTURES*)pNewNode)->pSamplerImageViews[i].pImageView, ((XGL_UPDATE_SAMPLER_TEXTURES*)pUpdate)->pSamplerImageViews[i].pImageView, sizeof(XGL_IMAGE_VIEW_ATTACH_INFO));
-            }
-            break;
-        case XGL_STRUCTURE_TYPE_UPDATE_IMAGES:
-            pUICI = (XGL_UPDATE_IMAGES*)pUpdate;
-            pNewNode = (GENERIC_HEADER*)malloc(sizeof(XGL_UPDATE_IMAGES));
-#if ALLOC_DEBUG
-            printf("Alloc15 #%lu pNewNode addr(%p)\n", ++g_alloc_count, (void*)pNewNode);
-#endif
-            memcpy(pNewNode, pUpdate, sizeof(XGL_UPDATE_IMAGES));
-            base_array_size = sizeof(XGL_IMAGE_VIEW_ATTACH_INFO*) * ((XGL_UPDATE_IMAGES*)pNewNode)->count;
-            total_array_size = (sizeof(XGL_IMAGE_VIEW_ATTACH_INFO) * ((XGL_UPDATE_IMAGES*)pNewNode)->count) + base_array_size;
-            XGL_IMAGE_VIEW_ATTACH_INFO*** pppLocalImageViews = (XGL_IMAGE_VIEW_ATTACH_INFO***)&((XGL_UPDATE_IMAGES*)pNewNode)->pImageViews;
-            *pppLocalImageViews = (XGL_IMAGE_VIEW_ATTACH_INFO**)malloc(total_array_size);
-#if ALLOC_DEBUG
-            printf("Alloc16 #%lu *pppLocalImageViews addr(%p)\n", ++g_alloc_count, (void*)*pppLocalImageViews);
-#endif
-            baseBuffAddr = (size_t)(*pppLocalImageViews) + base_array_size;
-            for (uint32_t i = 0; i < pUICI->count; i++) {
-                (*pppLocalImageViews)[i] = (XGL_IMAGE_VIEW_ATTACH_INFO*)(baseBuffAddr + (i * sizeof(XGL_IMAGE_VIEW_ATTACH_INFO)));
-                memcpy((*pppLocalImageViews)[i], pUICI->pImageViews[i], sizeof(XGL_IMAGE_VIEW_ATTACH_INFO));
-            }
-            break;
-        case XGL_STRUCTURE_TYPE_UPDATE_BUFFERS:
-            pUBCI = (XGL_UPDATE_BUFFERS*)pUpdate;
-            pNewNode = (GENERIC_HEADER*)malloc(sizeof(XGL_UPDATE_BUFFERS));
-#if ALLOC_DEBUG
-            printf("Alloc17 #%lu pNewNode addr(%p)\n", ++g_alloc_count, (void*)pNewNode);
-#endif
-            memcpy(pNewNode, pUpdate, sizeof(XGL_UPDATE_BUFFERS));
-            base_array_size = sizeof(XGL_BUFFER_VIEW_ATTACH_INFO*) * pUBCI->count;
-            total_array_size = (sizeof(XGL_BUFFER_VIEW_ATTACH_INFO) * pUBCI->count) + base_array_size;
-            XGL_BUFFER_VIEW_ATTACH_INFO*** pppLocalBufferViews = (XGL_BUFFER_VIEW_ATTACH_INFO***)&((XGL_UPDATE_BUFFERS*)pNewNode)->pBufferViews;
-            *pppLocalBufferViews = (XGL_BUFFER_VIEW_ATTACH_INFO**)malloc(total_array_size);
-#if ALLOC_DEBUG
-            printf("Alloc18 #%lu *pppLocalBufferViews addr(%p)\n", ++g_alloc_count, (void*)*pppLocalBufferViews);
-#endif
-            baseBuffAddr = (size_t)(*pppLocalBufferViews) + base_array_size;
-            for (uint32_t i = 0; i < pUBCI->count; i++) {
-                // Set ptr and then copy data into that ptr
-                (*pppLocalBufferViews)[i] = (XGL_BUFFER_VIEW_ATTACH_INFO*)(baseBuffAddr + (i * sizeof(XGL_BUFFER_VIEW_ATTACH_INFO)));
-                memcpy((*pppLocalBufferViews)[i], pUBCI->pBufferViews[i], sizeof(XGL_BUFFER_VIEW_ATTACH_INFO));
-            }
-            break;
-        case XGL_STRUCTURE_TYPE_UPDATE_AS_COPY:
-            pNewNode = (GENERIC_HEADER*)malloc(sizeof(XGL_UPDATE_AS_COPY));
-#if ALLOC_DEBUG
-            printf("Alloc19 #%lu pNewNode addr(%p)\n", ++g_alloc_count, (void*)pNewNode);
-#endif
-            memcpy(pNewNode, pUpdate, sizeof(XGL_UPDATE_AS_COPY));
-            break;
-        default:
-            sprintf(str, "Unexpected UPDATE struct of type %s (value %u) in xglUpdateDescriptors() struct tree", string_XGL_STRUCTURE_TYPE(pUpdate->sType), pUpdate->sType);
-            layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, NULL, 0, DRAWSTATE_INVALID_UPDATE_STRUCT, "DS", str);
-            return NULL;
-    }
-    // Make sure that pNext for the end of shadow copy is NULL
-    pNewNode->pNext = NULL;
-    return pNewNode;
-}
-// For given ds, update its mapping based on pUpdateChain linked-list
-static void dsUpdate(XGL_DESCRIPTOR_SET ds, GENERIC_HEADER* pUpdateChain)
-{
-    SET_NODE* pSet = getSetNode(ds);
-    loader_platform_thread_lock_mutex(&globalLock);
-    g_lastBoundDescriptorSet = pSet->set;
-    LAYOUT_NODE* pLayout = NULL;
-    XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO* pLayoutCI = NULL;
-    // TODO : If pCIList is NULL, flag error
-    GENERIC_HEADER* pUpdates = pUpdateChain;
-    // Perform all updates
-    while (pUpdates) {
-        pLayout = pSet->pLayouts;
-        // For each update first find the layout section that it overlaps
-        while (pLayout && (pLayout->startIndex > getUpdateIndex(pUpdates))) {
-            pLayout = pLayout->pPriorSetLayout;
-        }
-        if (!pLayout) {
-            char str[1024];
-            sprintf(str, "Descriptor Set %p does not have index to match update index %u for update type %s!", ds, getUpdateIndex(pUpdates), string_XGL_STRUCTURE_TYPE(pUpdates->sType));
-            layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, ds, 0, DRAWSTATE_INVALID_UPDATE_INDEX, "DS", str);
-        }
-        else {
-            // Next verify that update is correct size
-            if (!validateUpdateSize(pUpdates, pLayout->endIndex)) {
-                char str[48*1024]; // TODO : Keep count of layout CI structs and size this string dynamically based on that count
-                pLayoutCI = (XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO*)pLayout->pCreateInfoList;
-                char* pDSstr = xgl_print_xgl_descriptor_set_layout_create_info(pLayoutCI, "{DS}    ");
-                sprintf(str, "Descriptor update type of %s is out of bounds for matching layout w/ CI:\n%s!", string_XGL_STRUCTURE_TYPE(pUpdates->sType), pDSstr);
-                layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, ds, 0, DRAWSTATE_DESCRIPTOR_UPDATE_OUT_OF_BOUNDS, "DS", str);
-                free(pDSstr);
-            }
-            else { // TODO : should we skip update on a type mismatch or force it?
-                // We have the right layout section, now verify that update is of the right type
-                if (!validateUpdateType(pUpdates, pLayout)) {
-                    char str[1024];
-                    sprintf(str, "Descriptor update type of %s does not match overlapping layout type!", string_XGL_STRUCTURE_TYPE(pUpdates->sType));
-                    layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, ds, 0, DRAWSTATE_DESCRIPTOR_TYPE_MISMATCH, "DS", str);
-                }
-                else {
-                    // Save the update info
-                    // TODO : Info message that update successful
-                    // Create new update struct for this set's shadow copy
-                    GENERIC_HEADER* pNewNode = shadowUpdateNode(pUpdates);
-                    if (NULL == pNewNode) {
-                        char str[1024];
-                        sprintf(str, "Out of memory while attempting to allocate UPDATE struct in xglUpdateDescriptors()");
-                        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, ds, 0, DRAWSTATE_OUT_OF_MEMORY, "DS", str);
-                    }
-                    else {
-                        // Insert shadow node into LL of updates for this set
-                        pNewNode->pNext = pSet->pUpdateStructs;
-                        pSet->pUpdateStructs = pNewNode;
-                        // Now update appropriate descriptor(s) to point to new Update node
-                        for (uint32_t i = getUpdateIndex(pUpdates); i < getUpdateUpperBound(pUpdates); i++) {
-                            assert(i<pSet->descriptorCount);
-                            pSet->ppDescriptors[i] = pNewNode;
-                        }
-                    }
-                }
-            }
-        }
-        pUpdates = (GENERIC_HEADER*)pUpdates->pNext;
-    }
-    loader_platform_thread_unlock_mutex(&globalLock);
-}
-// Free the shadowed update node for this Set
-// NOTE : Calls to this function should be wrapped in mutex
-static void freeShadowUpdateTree(SET_NODE* pSet)
-{
-    GENERIC_HEADER* pShadowUpdate = pSet->pUpdateStructs;
-    pSet->pUpdateStructs = NULL;
-    GENERIC_HEADER* pFreeUpdate = pShadowUpdate;
-    // Clear the descriptor mappings as they will now be invalid
-    memset(pSet->ppDescriptors, 0, pSet->descriptorCount*sizeof(GENERIC_HEADER*));
-    while(pShadowUpdate) {
-        pFreeUpdate = pShadowUpdate;
-        pShadowUpdate = (GENERIC_HEADER*)pShadowUpdate->pNext;
-        uint32_t index = 0;
-        XGL_UPDATE_SAMPLERS* pUS = NULL;
-        XGL_UPDATE_SAMPLER_TEXTURES* pUST = NULL;
-        XGL_UPDATE_IMAGES* pUI = NULL;
-        XGL_UPDATE_BUFFERS* pUB = NULL;
-        void** ppToFree = NULL;
-        switch (pFreeUpdate->sType)
-        {
-            case XGL_STRUCTURE_TYPE_UPDATE_SAMPLERS:
-                pUS = (XGL_UPDATE_SAMPLERS*)pFreeUpdate;
-                if (pUS->pSamplers) {
-                    ppToFree = (void**)&pUS->pSamplers;
-#if ALLOC_DEBUG
-                    printf("Free11 #%lu pSamplers addr(%p)\n", ++g_free_count, (void*)*ppToFree);
-#endif
-                    free(*ppToFree);
-                }
-                break;
-            case XGL_STRUCTURE_TYPE_UPDATE_SAMPLER_TEXTURES:
-                pUST = (XGL_UPDATE_SAMPLER_TEXTURES*)pFreeUpdate;
-                for (index = 0; index < pUST->count; index++) {
-                    if (pUST->pSamplerImageViews[index].pImageView) {
-                        ppToFree = (void**)&pUST->pSamplerImageViews[index].pImageView;
-#if ALLOC_DEBUG
-                        printf("Free14 #%lu pImageView addr(%p)\n", ++g_free_count, (void*)*ppToFree);
-#endif
-                        free(*ppToFree);
-                    }
-                }
-                ppToFree = (void**)&pUST->pSamplerImageViews;
-#if ALLOC_DEBUG
-                printf("Free13 #%lu pSamplerImageViews addr(%p)\n", ++g_free_count, (void*)*ppToFree);
-#endif
-                free(*ppToFree);
-                break;
-            case XGL_STRUCTURE_TYPE_UPDATE_IMAGES:
-                pUI = (XGL_UPDATE_IMAGES*)pFreeUpdate;
-                if (pUI->pImageViews) {
-                    ppToFree = (void**)&pUI->pImageViews;
-#if ALLOC_DEBUG
-                    printf("Free16 #%lu pImageViews addr(%p)\n", ++g_free_count, (void*)*ppToFree);
-#endif
-                    free(*ppToFree);
-                }
-                break;
-            case XGL_STRUCTURE_TYPE_UPDATE_BUFFERS:
-                pUB = (XGL_UPDATE_BUFFERS*)pFreeUpdate;
-                if (pUB->pBufferViews) {
-                    ppToFree = (void**)&pUB->pBufferViews;
-#if ALLOC_DEBUG
-                    printf("Free18 #%lu pBufferViews addr(%p)\n", ++g_free_count, (void*)*ppToFree);
-#endif
-                    free(*ppToFree);
-                }
-                break;
-            case XGL_STRUCTURE_TYPE_UPDATE_AS_COPY:
-                break;
-            default:
-                assert(0);
-                break;
-        }
-#if ALLOC_DEBUG
-        printf("Free10, Free12, Free15, Free17, Free19 #%lu pUpdateNode addr(%p)\n", ++g_free_count, (void*)pFreeUpdate);
-#endif
-        free(pFreeUpdate);
-    }
-}
-// Free all DS Regions including their Sets & related sub-structs
-// NOTE : Calls to this function should be wrapped in mutex
-static void freeRegions()
-{
-    REGION_NODE* pRegion = g_pRegionHead;
-    REGION_NODE* pFreeMe = pRegion;
-    while (pRegion) {
-        pFreeMe = pRegion;
-        SET_NODE* pSet = pRegion->pSets;
-        SET_NODE* pFreeSet = pSet;
-        while (pSet) {
-            pFreeSet = pSet;
-            pSet = pSet->pNext;
-            // Freeing layouts handled in freeLayouts() function
-            // Free Update shadow struct tree
-            freeShadowUpdateTree(pFreeSet);
-            if (pFreeSet->ppDescriptors) {
-#if ALLOC_DEBUG
-                printf("Free35 #%lu pSet->ppDescriptors addr(%p)\n", ++g_free_count, (void*)pFreeSet->ppDescriptors);
-#endif
-                free(pFreeSet->ppDescriptors);
-            }
-#if ALLOC_DEBUG
-            printf("Free32 #%lu pSet addr(%p)\n", ++g_free_count, (void*)pFreeSet);
-#endif
-            free(pFreeSet);
-        }
-        pRegion = pRegion->pNext;
-        if (pFreeMe->createInfo.pTypeCount) {
-            void** ppToFree = (void**)&pFreeMe->createInfo.pTypeCount;
-#if ALLOC_DEBUG
-    printf("Free31 #%lu pTypeCount addr(%p)\n", ++g_free_count, (void*)*ppToFree);
-#endif
-            free(*ppToFree);
-        }
-#if ALLOC_DEBUG
-    printf("Free30 #%lu pRegion addr(%p)\n", ++g_free_count, (void*)pFreeMe);
-#endif
-        free(pFreeMe);
-    }
-    g_pRegionHead = NULL;
-}
-// WARN : Once freeLayouts() called, any layout ptrs in Region/Set data structure will be invalid
-// NOTE : Calls to this function should be wrapped in mutex
-static void freeLayouts()
-{
-    LAYOUT_NODE* pLayout = g_pLayoutHead;
-    LAYOUT_NODE* pFreeLayout = pLayout;
-    while (pLayout) {
-        pFreeLayout = pLayout;
-        GENERIC_HEADER* pTrav = (GENERIC_HEADER*)pLayout->pCreateInfoList;
-        while (pTrav) {
-            void* pToFree = (void*)pTrav;
-            pTrav = (GENERIC_HEADER*)pTrav->pNext;
-#if ALLOC_DEBUG
-    printf("Free27 & Free28 #%lu pLayoutCITree addr(%p)\n", ++g_free_count, (void*)pToFree);
-#endif
-            free(pToFree);
-        }
-        if (pLayout->pTypes) {
-#if ALLOC_DEBUG
-    printf("Free29 #%lu pLayout->pTypes addr(%p)\n", ++g_free_count, (void*)pLayout->pTypes);
-#endif
-            free(pLayout->pTypes);
-        }
-        pLayout = pLayout->pNext;
-#if ALLOC_DEBUG
-    printf("Free26 #%lu pLayout addr(%p)\n", ++g_free_count, (void*)pFreeLayout);
-#endif
-        free(pFreeLayout);
-    }
-    g_pLayoutHead = NULL;
-}
-// Currently clearing a set is removing all previous updates to that set
-//  TODO : Validate if this is correct clearing behavior
-static void clearDescriptorSet(XGL_DESCRIPTOR_SET set)
-{
-    SET_NODE* pSet = getSetNode(set);
-    if (!pSet) {
-        // TODO : Return error
-    }
-    else {
-        loader_platform_thread_lock_mutex(&globalLock);
-        freeShadowUpdateTree(pSet);
-        loader_platform_thread_unlock_mutex(&globalLock);
-    }
-}
-
-static void clearDescriptorRegion(XGL_DESCRIPTOR_REGION region)
-{
-    REGION_NODE* pRegion = getRegionNode(region);
-    if (!pRegion) {
-        char str[1024];
-        sprintf(str, "Unable to find region node for region %p specified in xglClearDescriptorRegion() call", (void*)region);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, region, 0, DRAWSTATE_INVALID_REGION, "DS", str);
-    }
-    else
-    {
-        // For every set off of this region, clear it
-        SET_NODE* pSet = pRegion->pSets;
-        while (pSet) {
-            clearDescriptorSet(pSet->set);
-        }
-    }
-}
-
-// Code here to manage the Cmd buffer LL
-static GLOBAL_CB_NODE* getCBNode(XGL_CMD_BUFFER cb)
-{
-    loader_platform_thread_lock_mutex(&globalLock);
-    GLOBAL_CB_NODE* pCB = g_pCmdBufferHead;
-    while (pCB) {
-        if (cb == pCB->cmdBuffer) {
-            loader_platform_thread_unlock_mutex(&globalLock);
-            return pCB;
-        }
-        pCB = pCB->pNextGlobalCBNode;
-    }
-    loader_platform_thread_unlock_mutex(&globalLock);
-    return NULL;
-}
-// Free all CB Nodes
-// NOTE : Calls to this function should be wrapped in mutex
-static void freeCmdBuffers()
-{
-    GLOBAL_CB_NODE* pCB = g_pCmdBufferHead;
-    GLOBAL_CB_NODE* pFreeMe = pCB;
-    while (pCB) {
-        pFreeMe = pCB;
-        CMD_NODE* pCmd = pCB->pCmds;
-        CMD_NODE* pFreeCmd = pCmd;
-        while (pCmd) {
-            pFreeCmd = pCmd;
-            pCmd = pCmd->pNext;
-#if ALLOC_DEBUG
-    printf("Free20 #%lu pCmd addr(%p)\n", ++g_free_count, (void*)pFreeCmd);
-#endif
-            free(pFreeCmd);
-        }
-        pCB = pCB->pNextGlobalCBNode;
-#if ALLOC_DEBUG
-    printf("Free33 #%lu pCB addr(%p)\n", ++g_free_count, (void*)pFreeMe);
-#endif
-        free(pFreeMe);
-    }
-    g_pCmdBufferHead = NULL;
-}
-static void addCmd(GLOBAL_CB_NODE* pCB, const CMD_TYPE cmd)
-{
-    CMD_NODE* pCmd = (CMD_NODE*)malloc(sizeof(CMD_NODE));
-#if ALLOC_DEBUG
-    printf("Alloc20 #%lu pCmd addr(%p)\n", ++g_alloc_count, (void*)pCmd);
-#endif
-    if (pCmd) {
-        // init cmd node and append to end of cmd LL
-        memset(pCmd, 0, sizeof(CMD_NODE));
-        pCB->numCmds++;
-        pCmd->cmdNumber = pCB->numCmds;
-        pCmd->type = cmd;
-        if (!pCB->pCmds) {
-            pCB->pCmds = pCmd;
-        }
-        else {
-            assert(pCB->pLastCmd);
-            pCB->pLastCmd->pNext = pCmd;
-        }
-        pCB->pLastCmd = pCmd;
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Out of memory while attempting to allocate new CMD_NODE for cmdBuffer %p", (void*)pCB->cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, pCB->cmdBuffer, 0, DRAWSTATE_OUT_OF_MEMORY, "DS", str);
-    }
-}
-static void resetCB(const XGL_CMD_BUFFER cb)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cb);
-    if (pCB) {
-        CMD_NODE* pCur = pCB->pCmds;
-        CMD_NODE* pFreeMe = pCur;
-        while (pCur) {
-            pFreeMe = pCur;
-            pCur = pCur->pNext;
-#if ALLOC_DEBUG
-            printf("Free20 #%lu pCmd addr(%p)\n", ++g_free_count, (void*)pFreeMe);
-#endif
-            free(pFreeMe);
-        }
-        // Reset CB state
-        GLOBAL_CB_NODE* pSaveNext = pCB->pNextGlobalCBNode;
-        XGL_FLAGS saveFlags = pCB->flags;
-        uint32_t saveQueueNodeIndex = pCB->queueNodeIndex;
-        memset(pCB, 0, sizeof(GLOBAL_CB_NODE));
-        pCB->cmdBuffer = cb;
-        pCB->flags = saveFlags;
-        pCB->queueNodeIndex = saveQueueNodeIndex;
-        pCB->pNextGlobalCBNode = pSaveNext;
-        pCB->lastVtxBinding = MAX_BINDING;
-    }
-}
-// Set the last bound dynamic state of given type
-// TODO : Need to track this per cmdBuffer and correlate cmdBuffer for Draw w/ last bound for that cmdBuffer?
-static void setLastBoundDynamicState(const XGL_CMD_BUFFER cmdBuffer, const XGL_DYNAMIC_STATE_OBJECT state, const XGL_STATE_BIND_POINT sType)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        loader_platform_thread_lock_mutex(&globalLock);
-        addCmd(pCB, CMD_BINDDYNAMICSTATEOBJECT);
-        DYNAMIC_STATE_NODE* pTrav = g_pDynamicStateHead[sType];
-        while (pTrav && (state != pTrav->stateObj)) {
-            pTrav = pTrav->pNext;
-        }
-        if (!pTrav) {
-            char str[1024];
-            sprintf(str, "Unable to find dynamic state object %p, was it ever created?", (void*)state);
-            layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, state, 0, DRAWSTATE_INVALID_DYNAMIC_STATE_OBJECT, "DS", str);
-        }
-        pCB->lastBoundDynamicState[sType] = pTrav;
-        g_lastBoundDynamicState[sType] = pTrav;
-        loader_platform_thread_unlock_mutex(&globalLock);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-}
-// Print the last bound Gfx Pipeline
-static void printPipeline(const XGL_CMD_BUFFER cb)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cb);
-    if (pCB) {
-        PIPELINE_NODE *pPipeTrav = getPipeline(pCB->lastBoundPipeline);
-        if (!pPipeTrav) {
-            // nothing to print
-        }
-        else {
-            char* pipeStr = xgl_print_xgl_graphics_pipeline_create_info(pPipeTrav->pCreateTree, "{DS}");
-            layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, NULL, 0, DRAWSTATE_NONE, "DS", pipeStr);
-            free(pipeStr);
-        }
-    }
-}
-// Common Dot dumping code
-static void dsCoreDumpDot(const XGL_DESCRIPTOR_SET ds, FILE* pOutFile)
-{
-    SET_NODE* pSet = getSetNode(ds);
-    if (pSet) {
-        REGION_NODE* pRegion = getRegionNode(pSet->region);
-        char tmp_str[4*1024];
-        fprintf(pOutFile, "subgraph cluster_DescriptorRegion\n{\nlabel=\"Descriptor Region\"\n");
-        sprintf(tmp_str, "Region (%p)", pRegion->region);
-        char* pGVstr = xgl_gv_print_xgl_descriptor_region_create_info(&pRegion->createInfo, tmp_str);
-        fprintf(pOutFile, "%s", pGVstr);
-        free(pGVstr);
-        fprintf(pOutFile, "subgraph cluster_DescriptorSet\n{\nlabel=\"Descriptor Set (%p)\"\n", pSet->set);
-        sprintf(tmp_str, "Descriptor Set (%p)", pSet->set);
-        LAYOUT_NODE* pLayout = pSet->pLayouts;
-        uint32_t layout_index = 0;
-        while (pLayout) {
-            ++layout_index;
-            sprintf(tmp_str, "LAYOUT%u", layout_index);
-            pGVstr = xgl_gv_print_xgl_descriptor_set_layout_create_info(pLayout->pCreateInfoList, tmp_str);
-            fprintf(pOutFile, "%s", pGVstr);
-            free(pGVstr);
-            pLayout = pLayout->pNext;
-            if (pLayout) {
-                fprintf(pOutFile, "\"%s\" -> \"LAYOUT%u\" [];\n", tmp_str, layout_index+1);
-            }
-        }
-        if (pSet->pUpdateStructs) {
-            pGVstr = dynamic_gv_display(pSet->pUpdateStructs, "Descriptor Updates");
-            fprintf(pOutFile, "%s", pGVstr);
-            free(pGVstr);
-        }
-        if (pSet->ppDescriptors) {
-            //void* pDesc = NULL;
-            fprintf(pOutFile, "\"DESCRIPTORS\" [\nlabel=<<TABLE BORDER=\"0\" CELLBORDER=\"1\" CELLSPACING=\"0\"> <TR><TD COLSPAN=\"2\" PORT=\"desc\">DESCRIPTORS</TD></TR>");
-            uint32_t i = 0;
-            for (i=0; i < pSet->descriptorCount; i++) {
-                if (pSet->ppDescriptors[i]) {
-                    fprintf(pOutFile, "<TR><TD PORT=\"slot%u\">slot%u</TD><TD>%s</TD></TR>", i, i, string_XGL_STRUCTURE_TYPE(pSet->ppDescriptors[i]->sType));
-                }
-            }
-#define NUM_COLORS 7
-            char* edgeColors[NUM_COLORS];
-            edgeColors[0] = "0000ff";
-            edgeColors[1] = "ff00ff";
-            edgeColors[2] = "ffff00";
-            edgeColors[3] = "00ff00";
-            edgeColors[4] = "000000";
-            edgeColors[5] = "00ffff";
-            edgeColors[6] = "ff0000";
-            uint32_t colorIdx = 0;
-            fprintf(pOutFile, "</TABLE>>\n];\n");
-            // Now add the views that are mapped to active descriptors
-            XGL_UPDATE_SAMPLERS* pUS = NULL;
-            XGL_UPDATE_SAMPLER_TEXTURES* pUST = NULL;
-            XGL_UPDATE_IMAGES* pUI = NULL;
-            XGL_UPDATE_BUFFERS* pUB = NULL;
-            XGL_UPDATE_AS_COPY* pUAC = NULL;
-            XGL_SAMPLER_CREATE_INFO* pSCI = NULL;
-            XGL_IMAGE_VIEW_CREATE_INFO* pIVCI = NULL;
-            XGL_BUFFER_VIEW_CREATE_INFO* pBVCI = NULL;
-            for (i=0; i < pSet->descriptorCount; i++) {
-                if (pSet->ppDescriptors[i]) {
-                    switch (pSet->ppDescriptors[i]->sType)
-                    {
-                        case XGL_STRUCTURE_TYPE_UPDATE_SAMPLERS:
-                            pUS = (XGL_UPDATE_SAMPLERS*)pSet->ppDescriptors[i];
-                            pSCI = getSamplerCreateInfo(pUS->pSamplers[i-pUS->index]);
-                            if (pSCI) {
-                                sprintf(tmp_str, "SAMPLER%u", i);
-                                fprintf(pOutFile, "%s", xgl_gv_print_xgl_sampler_create_info(pSCI, tmp_str));
-                                fprintf(pOutFile, "\"DESCRIPTORS\":slot%u -> \"%s\" [color=\"#%s\"];\n", i, tmp_str, edgeColors[colorIdx]);
-                            }
-                            break;
-                        case XGL_STRUCTURE_TYPE_UPDATE_SAMPLER_TEXTURES:
-                            pUST = (XGL_UPDATE_SAMPLER_TEXTURES*)pSet->ppDescriptors[i];
-                            pSCI = getSamplerCreateInfo(pUST->pSamplerImageViews[i-pUST->index].pSampler);
-                            if (pSCI) {
-                                sprintf(tmp_str, "SAMPLER%u", i);
-                                fprintf(pOutFile, "%s", xgl_gv_print_xgl_sampler_create_info(pSCI, tmp_str));
-                                fprintf(pOutFile, "\"DESCRIPTORS\":slot%u -> \"%s\" [color=\"#%s\"];\n", i, tmp_str, edgeColors[colorIdx]);
-                            }
-                            pIVCI = getImageViewCreateInfo(pUST->pSamplerImageViews[i-pUST->index].pImageView->view);
-                            if (pIVCI) {
-                                sprintf(tmp_str, "IMAGE_VIEW%u", i);
-                                fprintf(pOutFile, "%s", xgl_gv_print_xgl_image_view_create_info(pIVCI, tmp_str));
-                                fprintf(pOutFile, "\"DESCRIPTORS\":slot%u -> \"%s\" [color=\"#%s\"];\n", i, tmp_str, edgeColors[colorIdx]);
-                            }
-                            break;
-                        case XGL_STRUCTURE_TYPE_UPDATE_IMAGES:
-                            pUI = (XGL_UPDATE_IMAGES*)pSet->ppDescriptors[i];
-                            pIVCI = getImageViewCreateInfo(pUI->pImageViews[i-pUI->index]->view);
-                            if (pIVCI) {
-                                sprintf(tmp_str, "IMAGE_VIEW%u", i);
-                                fprintf(pOutFile, "%s", xgl_gv_print_xgl_image_view_create_info(pIVCI, tmp_str));
-                                fprintf(pOutFile, "\"DESCRIPTORS\":slot%u -> \"%s\" [color=\"#%s\"];\n", i, tmp_str, edgeColors[colorIdx]);
-                            }
-                            break;
-                        case XGL_STRUCTURE_TYPE_UPDATE_BUFFERS:
-                            pUB = (XGL_UPDATE_BUFFERS*)pSet->ppDescriptors[i];
-                            pBVCI = getBufferViewCreateInfo(pUB->pBufferViews[i-pUB->index]->view);
-                            if (pBVCI) {
-                                sprintf(tmp_str, "BUFFER_VIEW%u", i);
-                                fprintf(pOutFile, "%s", xgl_gv_print_xgl_buffer_view_create_info(pBVCI, tmp_str));
-                                fprintf(pOutFile, "\"DESCRIPTORS\":slot%u -> \"%s\" [color=\"#%s\"];\n", i, tmp_str, edgeColors[colorIdx]);
-                            }
-                            break;
-                        case XGL_STRUCTURE_TYPE_UPDATE_AS_COPY:
-                            pUAC = (XGL_UPDATE_AS_COPY*)pSet->ppDescriptors[i];
-                            // TODO : Need to validate this code
-                            // Save off pNext and set to NULL while printing this struct, then restore it
-                            void** ppNextPtr = (void*)&pUAC->pNext;
-                            void* pSaveNext = *ppNextPtr;
-                            *ppNextPtr = NULL;
-                            sprintf(tmp_str, "UPDATE_AS_COPY%u", i);
-                            fprintf(pOutFile, "%s", xgl_gv_print_xgl_update_as_copy(pUAC, tmp_str));
-                            fprintf(pOutFile, "\"DESCRIPTORS\":slot%u -> \"%s\" [color=\"#%s\"];\n", i, tmp_str, edgeColors[colorIdx]);
-                            // Restore next ptr
-                            *ppNextPtr = pSaveNext;
-                            break;
-                        default:
-                            break;
-                    }
-                    colorIdx = (colorIdx+1) % NUM_COLORS;
-                }
-            }
-        }
-        fprintf(pOutFile, "}\n");
-        fprintf(pOutFile, "}\n");
-        pRegion = pRegion->pNext;
-    }
-}
-// Dump subgraph w/ DS info
-static void dsDumpDot(const XGL_CMD_BUFFER cb, FILE* pOutFile)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cb);
-    if (pCB && pCB->lastBoundDescriptorSet) {
-        dsCoreDumpDot(pCB->lastBoundDescriptorSet, pOutFile);
-    }
-}
-// Dump a GraphViz dot file showing the Cmd Buffers
-static void cbDumpDotFile(char *outFileName)
-{
-    // Print CB Chain for each CB
-    FILE* pOutFile;
-    pOutFile = fopen(outFileName, "w");
-    fprintf(pOutFile, "digraph g {\ngraph [\nrankdir = \"TB\"\n];\nnode [\nfontsize = \"16\"\nshape = \"plaintext\"\n];\nedge [\n];\n");
-    fprintf(pOutFile, "subgraph cluster_cmdBuffers\n{\nlabel=\"Command Buffers\"\n");
-    GLOBAL_CB_NODE* pCB = g_pCmdBufferHead;
-    for (uint32_t i = 0; i < NUM_COMMAND_BUFFERS_TO_DISPLAY; i++) {
-        pCB = g_pLastTouchedCB[i];
-        if (pCB) {
-            fprintf(pOutFile, "subgraph cluster_cmdBuffer%u\n{\nlabel=\"Command Buffer #%u\"\n", i, i);
-            CMD_NODE* pCmd = pCB->pCmds;
-            uint32_t instNum = 0;
-            while (pCmd) {
-                if (instNum) {
-                    fprintf(pOutFile, "\"CB%pCMD%u\" -> \"CB%pCMD%u\" [];\n", (void*)pCB->cmdBuffer, instNum-1, (void*)pCB->cmdBuffer, instNum);
-                }
-                if (pCB == g_lastGlobalCB) {
-                    fprintf(pOutFile, "\"CB%pCMD%u\" [\nlabel=<<TABLE BGCOLOR=\"#00FF00\" BORDER=\"0\" CELLBORDER=\"1\" CELLSPACING=\"0\"> <TR><TD>CMD#</TD><TD>%u</TD></TR><TR><TD>CMD Type</TD><TD>%s</TD></TR></TABLE>>\n];\n", (void*)pCB->cmdBuffer, instNum, instNum, cmdTypeToString(pCmd->type));
-                }
-                else {
-                    fprintf(pOutFile, "\"CB%pCMD%u\" [\nlabel=<<TABLE BORDER=\"0\" CELLBORDER=\"1\" CELLSPACING=\"0\"> <TR><TD>CMD#</TD><TD>%u</TD></TR><TR><TD>CMD Type</TD><TD>%s</TD></TR></TABLE>>\n];\n", (void*)pCB->cmdBuffer, instNum, instNum, cmdTypeToString(pCmd->type));
-                }
-                ++instNum;
-                pCmd = pCmd->pNext;
-            }
-            fprintf(pOutFile, "}\n");
-        }
-    }
-    fprintf(pOutFile, "}\n");
-    fprintf(pOutFile, "}\n"); // close main graph "g"
-    fclose(pOutFile);
-}
-// Dump a GraphViz dot file showing the pipeline for last bound global state
-static void dumpGlobalDotFile(char *outFileName)
-{
-    PIPELINE_NODE *pPipeTrav = g_lastBoundPipeline;
-    if (pPipeTrav) {
-        FILE* pOutFile;
-        pOutFile = fopen(outFileName, "w");
-        fprintf(pOutFile, "digraph g {\ngraph [\nrankdir = \"TB\"\n];\nnode [\nfontsize = \"16\"\nshape = \"plaintext\"\n];\nedge [\n];\n");
-        fprintf(pOutFile, "subgraph cluster_dynamicState\n{\nlabel=\"Dynamic State\"\n");
-        char* pGVstr = NULL;
-        for (uint32_t i = 0; i < XGL_NUM_STATE_BIND_POINT; i++) {
-            if (g_lastBoundDynamicState[i] && g_lastBoundDynamicState[i]->pCreateInfo) {
-                pGVstr = dynamic_gv_display(g_lastBoundDynamicState[i]->pCreateInfo, string_XGL_STATE_BIND_POINT(i));
-                fprintf(pOutFile, "%s", pGVstr);
-                free(pGVstr);
-            }
-        }
-        fprintf(pOutFile, "}\n"); // close dynamicState subgraph
-        fprintf(pOutFile, "subgraph cluster_PipelineStateObject\n{\nlabel=\"Pipeline State Object\"\n");
-        pGVstr = xgl_gv_print_xgl_graphics_pipeline_create_info(pPipeTrav->pCreateTree, "PSO HEAD");
-        fprintf(pOutFile, "%s", pGVstr);
-        free(pGVstr);
-        fprintf(pOutFile, "}\n");
-        dsCoreDumpDot(g_lastBoundDescriptorSet, pOutFile);
-        fprintf(pOutFile, "}\n"); // close main graph "g"
-        fclose(pOutFile);
-    }
-}
-// Dump a GraphViz dot file showing the pipeline for a given CB
-static void dumpDotFile(const XGL_CMD_BUFFER cb, char *outFileName)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cb);
-    if (pCB) {
-        PIPELINE_NODE *pPipeTrav = getPipeline(pCB->lastBoundPipeline);
-        if (pPipeTrav) {
-            FILE* pOutFile;
-            pOutFile = fopen(outFileName, "w");
-            fprintf(pOutFile, "digraph g {\ngraph [\nrankdir = \"TB\"\n];\nnode [\nfontsize = \"16\"\nshape = \"plaintext\"\n];\nedge [\n];\n");
-            fprintf(pOutFile, "subgraph cluster_dynamicState\n{\nlabel=\"Dynamic State\"\n");
-            char* pGVstr = NULL;
-            for (uint32_t i = 0; i < XGL_NUM_STATE_BIND_POINT; i++) {
-                if (pCB->lastBoundDynamicState[i] && pCB->lastBoundDynamicState[i]->pCreateInfo) {
-                    pGVstr = dynamic_gv_display(pCB->lastBoundDynamicState[i]->pCreateInfo, string_XGL_STATE_BIND_POINT(i));
-                    fprintf(pOutFile, "%s", pGVstr);
-                    free(pGVstr);
-                }
-            }
-            fprintf(pOutFile, "}\n"); // close dynamicState subgraph
-            fprintf(pOutFile, "subgraph cluster_PipelineStateObject\n{\nlabel=\"Pipeline State Object\"\n");
-            pGVstr = xgl_gv_print_xgl_graphics_pipeline_create_info(pPipeTrav->pCreateTree, "PSO HEAD");
-            fprintf(pOutFile, "%s", pGVstr);
-            free(pGVstr);
-            fprintf(pOutFile, "}\n");
-            dsDumpDot(cb, pOutFile);
-            fprintf(pOutFile, "}\n"); // close main graph "g"
-            fclose(pOutFile);
-        }
-    }
-}
-// Verify VB Buffer binding
-static void validateVBBinding(const XGL_CMD_BUFFER cb)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cb);
-    if (pCB && pCB->lastBoundPipeline) {
-        // First verify that we have a Node for bound pipeline
-        PIPELINE_NODE *pPipeTrav = getPipeline(pCB->lastBoundPipeline);
-        char str[1024];
-        if (!pPipeTrav) {
-            sprintf(str, "Can't find last bound Pipeline %p!", (void*)pCB->lastBoundPipeline);
-            layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, NULL, 0, DRAWSTATE_NO_PIPELINE_BOUND, "DS", str);
-        }
-        else {
-            // Verify Vtx binding
-            if (MAX_BINDING != pCB->lastVtxBinding) {
-                if (pCB->lastVtxBinding >= pPipeTrav->vtxBindingCount) {
-                    if (0 == pPipeTrav->vtxBindingCount) {
-                        sprintf(str, "Vtx Buffer Index %u was bound, but no vtx buffers are attached to PSO.", pCB->lastVtxBinding);
-                        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, NULL, 0, DRAWSTATE_VTX_INDEX_OUT_OF_BOUNDS, "DS", str);
-                    }
-                    else {
-                        sprintf(str, "Vtx binding Index of %u exceeds PSO pVertexBindingDescriptions max array index of %u.", pCB->lastVtxBinding, (pPipeTrav->vtxBindingCount - 1));
-                        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, NULL, 0, DRAWSTATE_VTX_INDEX_OUT_OF_BOUNDS, "DS", str);
-                    }
-                }
-                else {
-                    char *tmpStr = xgl_print_xgl_vertex_input_binding_description(&pPipeTrav->pVertexBindingDescriptions[pCB->lastVtxBinding], "{DS}INFO : ");
-                    layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, NULL, 0, DRAWSTATE_NONE, "DS", tmpStr);
-                    free(tmpStr);
-                }
-            }
-        }
-    }
-}
-// Print details of DS config to stdout
-static void printDSConfig(const XGL_CMD_BUFFER cb)
-{
-    char tmp_str[1024];
-    char ds_config_str[1024*256] = {0}; // TODO : Currently making this buffer HUGE w/o overrun protection.  Need to be smarter, start smaller, and grow as needed.
-    GLOBAL_CB_NODE* pCB = getCBNode(cb);
-    if (pCB) {
-        SET_NODE* pSet = getSetNode(pCB->lastBoundDescriptorSet);
-        REGION_NODE* pRegion = getRegionNode(pSet->region);
-        // Print out region details
-        sprintf(tmp_str, "Details for region %p.", (void*)pRegion->region);
-        layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, NULL, 0, DRAWSTATE_NONE, "DS", tmp_str);
-        char* pRegionStr = xgl_print_xgl_descriptor_region_create_info(&pRegion->createInfo, " ");
-        sprintf(ds_config_str, "%s", pRegionStr);
-        layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, NULL, 0, DRAWSTATE_NONE, "DS", ds_config_str);
-        free(pRegionStr);
-        // Print out set details
-        char prefix[10];
-        uint32_t index = 0;
-        sprintf(tmp_str, "Details for descriptor set %p.", (void*)pSet->set);
-        layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, NULL, 0, DRAWSTATE_NONE, "DS", tmp_str);
-        LAYOUT_NODE* pLayout = pSet->pLayouts;
-        while (pLayout) {
-            // Print layout details
-            sprintf(tmp_str, "Layout #%u, (object %p) for DS %p.", index+1, (void*)pLayout->layout, (void*)pSet->set);
-            layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, NULL, 0, DRAWSTATE_NONE, "DS", tmp_str);
-            sprintf(prefix, "  [L%u] ", index);
-            char* pDSLstr = xgl_print_xgl_descriptor_set_layout_create_info(&pLayout->pCreateInfoList[0], prefix);
-            sprintf(ds_config_str, "%s", pDSLstr);
-            layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, NULL, 0, DRAWSTATE_NONE, "DS", ds_config_str);
-            free(pDSLstr);
-            pLayout = pLayout->pPriorSetLayout;
-            index++;
-        }
-        GENERIC_HEADER* pUpdate = pSet->pUpdateStructs;
-        if (pUpdate) {
-            sprintf(tmp_str, "Update Chain [UC] for descriptor set %p:", (void*)pSet->set);
-            layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, NULL, 0, DRAWSTATE_NONE, "DS", tmp_str);
-            sprintf(prefix, "  [UC] ");
-            sprintf(ds_config_str, "%s", dynamic_display(pUpdate, prefix));
-            layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, NULL, 0, DRAWSTATE_NONE, "DS", ds_config_str);
-            // TODO : If there is a "view" associated with this update, print CI for that view
-        }
-        else {
-            sprintf(tmp_str, "No Update Chain for descriptor set %p (xglUpdateDescriptors has not been called)", (void*)pSet->set);
-            layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, NULL, 0, DRAWSTATE_NONE, "DS", tmp_str);
-        }
-    }
-}
-
-static void printCB(const XGL_CMD_BUFFER cb)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cb);
-    if (pCB) {
-        char str[1024];
-        CMD_NODE* pCmd = pCB->pCmds;
-        sprintf(str, "Cmds in CB %p", (void*)cb);
-        layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, NULL, 0, DRAWSTATE_NONE, "DS", str);
-        while (pCmd) {
-            sprintf(str, "  CMD#%lu: %s", pCmd->cmdNumber, cmdTypeToString(pCmd->type));
-            layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, cb, 0, DRAWSTATE_NONE, "DS", str);
-            pCmd = pCmd->pNext;
-        }
-    }
-    else {
-        // Nothing to print
-    }
-}
-
-
-static void synchAndPrintDSConfig(const XGL_CMD_BUFFER cb)
-{
-    printDSConfig(cb);
-    printPipeline(cb);
-    printDynamicState(cb);
-    static int autoDumpOnce = 0;
-    if (autoDumpOnce) {
-        autoDumpOnce = 0;
-        dumpDotFile(cb, "pipeline_dump.dot");
-        cbDumpDotFile("cb_dump.dot");
-#if defined(_WIN32)
-// FIXME: NEED WINDOWS EQUIVALENT
-#else // WIN32
-        // Convert dot to svg if dot available
-        if(access( "/usr/bin/dot", X_OK) != -1) {
-            system("/usr/bin/dot pipeline_dump.dot -Tsvg -o pipeline_dump.svg");
-        }
-#endif // WIN32
-    }
-}
-
-static void initDrawState(void)
-{
-    const char *strOpt;
-    // initialize DrawState options
-    getLayerOptionEnum("DrawStateReportLevel", (uint32_t *) &g_reportingLevel);
-    g_actionIsDefault = getLayerOptionEnum("DrawStateDebugAction", (uint32_t *) &g_debugAction);
-
-    if (g_debugAction & XGL_DBG_LAYER_ACTION_LOG_MSG)
-    {
-        strOpt = getLayerOption("DrawStateLogFilename");
-        if (strOpt)
-        {
-            g_logFile = fopen(strOpt, "w");
-        }
-        if (g_logFile == NULL)
-            g_logFile = stdout;
-    }
-    // initialize Layer dispatch table
-    // TODO handle multiple GPUs
-    xglGetProcAddrType fpNextGPA;
-    fpNextGPA = pCurObj->pGPA;
-    assert(fpNextGPA);
-
-    layer_initialize_dispatch_table(&nextTable, fpNextGPA, (XGL_PHYSICAL_GPU) pCurObj->nextObject);
-
-    xglGetProcAddrType fpGetProcAddr = fpNextGPA((XGL_PHYSICAL_GPU) pCurObj->nextObject, (char *) "xglGetProcAddr");
-    nextTable.GetProcAddr = fpGetProcAddr;
-
-    if (!globalLockInitialized)
-    {
-        // TODO/TBD: Need to delete this mutex sometime.  How???  One
-        // suggestion is to call this during xglCreateInstance(), and then we
-        // can clean it up during xglDestroyInstance().  However, that requires
-        // that the layer have per-instance locks.  We need to come back and
-        // address this soon.
-        loader_platform_thread_create_mutex(&globalLock);
-        globalLockInitialized = 1;
-    }
-}
-
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglCreateDevice(XGL_PHYSICAL_GPU gpu, const XGL_DEVICE_CREATE_INFO* pCreateInfo, XGL_DEVICE* pDevice)
-{
-    XGL_BASE_LAYER_OBJECT* gpuw = (XGL_BASE_LAYER_OBJECT *) gpu;
-    pCurObj = gpuw;
-    loader_platform_thread_once(&g_initOnce, initDrawState);
-    XGL_RESULT result = nextTable.CreateDevice((XGL_PHYSICAL_GPU)gpuw->nextObject, pCreateInfo, pDevice);
-    return result;
-}
-
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglDestroyDevice(XGL_DEVICE device)
-{
-    // Free all the memory
-    loader_platform_thread_lock_mutex(&globalLock);
-    freePipelines();
-    freeSamplers();
-    freeImages();
-    freeBuffers();
-    freeCmdBuffers();
-    freeDynamicState();
-    freeRegions();
-    freeLayouts();
-    loader_platform_thread_unlock_mutex(&globalLock);
-    XGL_RESULT result = nextTable.DestroyDevice(device);
-    return result;
-}
-
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglEnumerateLayers(XGL_PHYSICAL_GPU gpu, size_t maxLayerCount, size_t maxStringSize, size_t* pOutLayerCount, char* const* pOutLayers, void* pReserved)
-{
-    if (gpu != NULL)
-    {
-        XGL_BASE_LAYER_OBJECT* gpuw = (XGL_BASE_LAYER_OBJECT *) gpu;
-        pCurObj = gpuw;
-        loader_platform_thread_once(&g_initOnce, initDrawState);
-        XGL_RESULT result = nextTable.EnumerateLayers((XGL_PHYSICAL_GPU)gpuw->nextObject, maxLayerCount, maxStringSize, pOutLayerCount, pOutLayers, pReserved);
-        return result;
-    } else
-    {
-        if (pOutLayerCount == NULL || pOutLayers == NULL || pOutLayers[0] == NULL)
-            return XGL_ERROR_INVALID_POINTER;
-        // This layer compatible with all GPUs
-        *pOutLayerCount = 1;
-        strncpy((char *) pOutLayers[0], "DrawState", maxStringSize);
-        return XGL_SUCCESS;
-    }
-}
-
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglQueueSubmit(XGL_QUEUE queue, uint32_t cmdBufferCount, const XGL_CMD_BUFFER* pCmdBuffers, uint32_t memRefCount, const XGL_MEMORY_REF* pMemRefs, XGL_FENCE fence)
-{
-    for (uint32_t i=0; i < cmdBufferCount; i++) {
-        // Validate that cmd buffers have been updated
-    }
-    XGL_RESULT result = nextTable.QueueSubmit(queue, cmdBufferCount, pCmdBuffers, memRefCount, pMemRefs, fence);
-    return result;
-}
-
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglDestroyObject(XGL_OBJECT object)
-{
-    // TODO : When wrapped objects (such as dynamic state) are destroyed, need to clean up memory
-    XGL_RESULT result = nextTable.DestroyObject(object);
-    return result;
-}
-
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglCreateBufferView(XGL_DEVICE device, const XGL_BUFFER_VIEW_CREATE_INFO* pCreateInfo, XGL_BUFFER_VIEW* pView)
-{
-    XGL_RESULT result = nextTable.CreateBufferView(device, pCreateInfo, pView);
-    if (XGL_SUCCESS == result) {
-        loader_platform_thread_lock_mutex(&globalLock);
-        BUFFER_NODE *pNewNode = (BUFFER_NODE*)malloc(sizeof(BUFFER_NODE));
-#if ALLOC_DEBUG
-    printf("Alloc21 #%lu pNewNode addr(%p)\n", ++g_alloc_count, (void*)pNewNode);
-#endif
-        pNewNode->buffer = *pView;
-        memcpy(&pNewNode->createInfo, pCreateInfo, sizeof(XGL_BUFFER_VIEW_CREATE_INFO));
-        pNewNode->pNext = g_pBufferHead;
-        g_pBufferHead = pNewNode;
-        loader_platform_thread_unlock_mutex(&globalLock);
-    }
-    return result;
-}
-
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglCreateImageView(XGL_DEVICE device, const XGL_IMAGE_VIEW_CREATE_INFO* pCreateInfo, XGL_IMAGE_VIEW* pView)
-{
-    XGL_RESULT result = nextTable.CreateImageView(device, pCreateInfo, pView);
-    if (XGL_SUCCESS == result) {
-        loader_platform_thread_lock_mutex(&globalLock);
-        IMAGE_NODE *pNewNode = (IMAGE_NODE*)malloc(sizeof(IMAGE_NODE));
-#if ALLOC_DEBUG
-    printf("Alloc22 #%lu pNewNode addr(%p)\n", ++g_alloc_count, (void*)pNewNode);
-#endif
-        pNewNode->image = *pView;
-        memcpy(&pNewNode->createInfo, pCreateInfo, sizeof(XGL_IMAGE_VIEW_CREATE_INFO));
-        pNewNode->pNext = g_pImageHead;
-        g_pImageHead = pNewNode;
-        loader_platform_thread_unlock_mutex(&globalLock);
-    }
-    return result;
-}
-
-static void track_pipeline(const XGL_GRAPHICS_PIPELINE_CREATE_INFO* pCreateInfo, XGL_PIPELINE* pPipeline)
-{
-    loader_platform_thread_lock_mutex(&globalLock);
-    PIPELINE_NODE *pTrav = g_pPipelineHead;
-    if (pTrav) {
-        while (pTrav->pNext)
-            pTrav = pTrav->pNext;
-        pTrav->pNext = (PIPELINE_NODE*)malloc(sizeof(PIPELINE_NODE));
-#if ALLOC_DEBUG
-    printf("Alloc23 #%lu pTrav->pNext addr(%p)\n", ++g_alloc_count, (void*)pTrav->pNext);
-#endif
-        pTrav = pTrav->pNext;
-    }
-    else {
-        pTrav = (PIPELINE_NODE*)malloc(sizeof(PIPELINE_NODE));
-#if ALLOC_DEBUG
-    printf("Alloc24 #%lu pTrav addr(%p)\n", ++g_alloc_count, (void*)pTrav);
-#endif
-        g_pPipelineHead = pTrav;
-    }
-    memset((void*)pTrav, 0, sizeof(PIPELINE_NODE));
-    pTrav->pipeline = *pPipeline;
-    initPipeline(pTrav, pCreateInfo);
-    loader_platform_thread_unlock_mutex(&globalLock);
-}
-
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglCreateGraphicsPipeline(XGL_DEVICE device, const XGL_GRAPHICS_PIPELINE_CREATE_INFO* pCreateInfo, XGL_PIPELINE* pPipeline)
-{
-    XGL_RESULT result = nextTable.CreateGraphicsPipeline(device, pCreateInfo, pPipeline);
-    // Create LL HEAD for this Pipeline
-    char str[1024];
-    sprintf(str, "Created Gfx Pipeline %p", (void*)*pPipeline);
-    layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, pPipeline, 0, DRAWSTATE_NONE, "DS", str);
-
-    track_pipeline(pCreateInfo, pPipeline);
-
-    return result;
-}
-
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglCreateGraphicsPipelineDerivative(
-        XGL_DEVICE device,
-        const XGL_GRAPHICS_PIPELINE_CREATE_INFO* pCreateInfo,
-        XGL_PIPELINE basePipeline,
-        XGL_PIPELINE* pPipeline)
-{
-    XGL_RESULT result = nextTable.CreateGraphicsPipelineDerivative(device, pCreateInfo, basePipeline, pPipeline);
-    // Create LL HEAD for this Pipeline
-    char str[1024];
-    sprintf(str, "Created Gfx Pipeline %p (derived from pipeline %p)", (void*)*pPipeline, basePipeline);
-    layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, pPipeline, 0, DRAWSTATE_NONE, "DS", str);
-
-    track_pipeline(pCreateInfo, pPipeline);
-
-    return result;
-}
-
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglCreateSampler(XGL_DEVICE device, const XGL_SAMPLER_CREATE_INFO* pCreateInfo, XGL_SAMPLER* pSampler)
-{
-    XGL_RESULT result = nextTable.CreateSampler(device, pCreateInfo, pSampler);
-    if (XGL_SUCCESS == result) {
-        loader_platform_thread_lock_mutex(&globalLock);
-        SAMPLER_NODE *pNewNode = (SAMPLER_NODE*)malloc(sizeof(SAMPLER_NODE));
-#if ALLOC_DEBUG
-        printf("Alloc25 #%lu pNewNode addr(%p)\n", ++g_alloc_count, (void*)pNewNode);
-#endif
-        pNewNode->sampler = *pSampler;
-        memcpy(&pNewNode->createInfo, pCreateInfo, sizeof(XGL_SAMPLER_CREATE_INFO));
-        pNewNode->pNext = g_pSamplerHead;
-        g_pSamplerHead = pNewNode;
-        loader_platform_thread_unlock_mutex(&globalLock);
-    }
-    return result;
-}
-
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglCreateDescriptorSetLayout(XGL_DEVICE device, XGL_FLAGS stageFlags, const uint32_t* pSetBindPoints, XGL_DESCRIPTOR_SET_LAYOUT priorSetLayout, const XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO* pSetLayoutInfoList, XGL_DESCRIPTOR_SET_LAYOUT* pSetLayout)
-{
-    XGL_RESULT result = nextTable.CreateDescriptorSetLayout(device, stageFlags, pSetBindPoints, priorSetLayout, pSetLayoutInfoList, pSetLayout);
-    if (XGL_SUCCESS == result) {
-        LAYOUT_NODE* pNewNode = (LAYOUT_NODE*)malloc(sizeof(LAYOUT_NODE));
-#if ALLOC_DEBUG
-        printf("Alloc26 #%lu pNewNode addr(%p)\n", ++g_alloc_count, (void*)pNewNode);
-#endif
-        if (NULL == pNewNode) {
-            char str[1024];
-            sprintf(str, "Out of memory while attempting to allocate LAYOUT_NODE in xglCreateDescriptorSetLayout()");
-            layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, *pSetLayout, 0, DRAWSTATE_OUT_OF_MEMORY, "DS", str);
-        }
-        memset(pNewNode, 0, sizeof(LAYOUT_NODE));
-        // TODO : API Currently missing a count here that we should multiply by struct size
-        pNewNode->pCreateInfoList = (XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO*)malloc(sizeof(XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO));
-#if ALLOC_DEBUG
-        printf("Alloc27 #%lu pNewNode->pCreateInfoList addr(%p)\n", ++g_alloc_count, (void*)pNewNode->pCreateInfoList);
-#endif
-        memset((void*)pNewNode->pCreateInfoList, 0, sizeof(XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO));
-        void* pCITrav = NULL;
-        uint32_t totalCount = 0;
-        if (pSetLayoutInfoList) {
-            memcpy((void*)pNewNode->pCreateInfoList, pSetLayoutInfoList, sizeof(XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO));
-            pCITrav = (void*)pSetLayoutInfoList->pNext;
-            totalCount = pSetLayoutInfoList->count;
-        }
-        void** ppNext = (void**)&pNewNode->pCreateInfoList->pNext;
-        while (pCITrav) {
-            totalCount += ((XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO*)pCITrav)->count;
-            *ppNext = (void*)malloc(sizeof(XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO));
-#if ALLOC_DEBUG
-            printf("Alloc28 #%lu *ppNext addr(%p)\n", ++g_alloc_count, (void*)*ppNext);
-#endif
-            memcpy((void*)*ppNext, pCITrav, sizeof(XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO));
-            pCITrav = (void*)((XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO*)pCITrav)->pNext;
-            ppNext = (void**)&((XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO*)*ppNext)->pNext;
-        }
-        if (totalCount > 0) {
-            pNewNode->pTypes = (XGL_DESCRIPTOR_TYPE*)malloc(totalCount*sizeof(XGL_DESCRIPTOR_TYPE));
-#if ALLOC_DEBUG
-            printf("Alloc29 #%lu pNewNode->pTypes addr(%p)\n", ++g_alloc_count, (void*)pNewNode->pTypes);
-#endif
-            XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO* pLCI = (XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO*)pSetLayoutInfoList;
-            uint32_t offset = 0;
-            uint32_t i = 0;
-            while (pLCI) {
-                for (i = 0; i < pLCI->count; i++) {
-                    pNewNode->pTypes[offset + i] = pLCI->descriptorType;
-                }
-                offset += i;
-                pLCI = (XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO*)pLCI->pNext;
-            }
-        }
-        pNewNode->layout = *pSetLayout;
-        pNewNode->stageFlags = stageFlags;
-        uint32_t i = (XGL_SHADER_STAGE_FLAGS_ALL == stageFlags) ? 0 : XGL_SHADER_STAGE_COMPUTE;
-        for (uint32_t stage = XGL_SHADER_STAGE_FLAGS_COMPUTE_BIT; stage > 0; stage >>= 1) {
-            assert(i < XGL_NUM_SHADER_STAGE);
-            if (stage & stageFlags)
-                pNewNode->shaderStageBindPoints[i] = pSetBindPoints[i];
-            i = (i == 0) ? 0 : (i-1);
-        }
-        pNewNode->startIndex = 0;
-        LAYOUT_NODE* pPriorNode = getLayoutNode(priorSetLayout);
-        // Point to prior node or NULL if no prior node
-        if (NULL != priorSetLayout && pPriorNode == NULL) {
-            char str[1024];
-            sprintf(str, "Invalid priorSetLayout of %p passed to xglCreateDescriptorSetLayout()", (void*)priorSetLayout);
-            layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, priorSetLayout, 0, DRAWSTATE_INVALID_LAYOUT, "DS", str);
-        }
-        else if (pPriorNode != NULL) { // We have a node for a valid prior layout
-            // Get count for prior layout
-            pNewNode->startIndex = pPriorNode->endIndex + 1;
-        }
-        pNewNode->endIndex = pNewNode->startIndex + totalCount - 1;
-        assert(pNewNode->endIndex >= pNewNode->startIndex);
-        pNewNode->pPriorSetLayout = pPriorNode;
-        // Put new node at Head of global Layer list
-        loader_platform_thread_lock_mutex(&globalLock);
-        pNewNode->pNext = g_pLayoutHead;
-        g_pLayoutHead = pNewNode;
-        loader_platform_thread_unlock_mutex(&globalLock);
-    }
-    return result;
-}
-
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglBeginDescriptorRegionUpdate(XGL_DEVICE device, XGL_DESCRIPTOR_UPDATE_MODE updateMode)
-{
-    XGL_RESULT result = nextTable.BeginDescriptorRegionUpdate(device, updateMode);
-    if (XGL_SUCCESS == result) {
-        loader_platform_thread_lock_mutex(&globalLock);
-        REGION_NODE* pRegionNode = g_pRegionHead;
-        if (!pRegionNode) {
-            char str[1024];
-            sprintf(str, "Unable to find region node for global region head %p", (void*)g_pRegionHead);
-            layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, g_pRegionHead, 0, DRAWSTATE_INTERNAL_ERROR, "DS", str);
-        }
-        else {
-            pRegionNode->updateActive = 1;
-        }
-        loader_platform_thread_unlock_mutex(&globalLock);
-    }
-    return result;
-}
-
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglEndDescriptorRegionUpdate(XGL_DEVICE device, XGL_CMD_BUFFER cmd)
-{
-    XGL_RESULT result = nextTable.EndDescriptorRegionUpdate(device, cmd);
-    if (XGL_SUCCESS == result) {
-        loader_platform_thread_lock_mutex(&globalLock);
-        REGION_NODE* pRegionNode = g_pRegionHead;
-        if (!pRegionNode) {
-            char str[1024];
-            sprintf(str, "Unable to find region node for global region head %p", (void*)g_pRegionHead);
-            layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, g_pRegionHead, 0, DRAWSTATE_INTERNAL_ERROR, "DS", str);
-        }
-        else {
-            if (!pRegionNode->updateActive) {
-                char str[1024];
-                sprintf(str, "You must call xglBeginDescriptorRegionUpdate() before this call to xglEndDescriptorRegionUpdate()!");
-                layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, g_pRegionHead, 0, DRAWSTATE_DS_END_WITHOUT_BEGIN, "DS", str);
-            }
-            else {
-                pRegionNode->updateActive = 0;
-            }
-        }
-        loader_platform_thread_unlock_mutex(&globalLock);
-    }
-    return result;
-}
-
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglCreateDescriptorRegion(XGL_DEVICE device, XGL_DESCRIPTOR_REGION_USAGE regionUsage, uint32_t maxSets, const XGL_DESCRIPTOR_REGION_CREATE_INFO* pCreateInfo, XGL_DESCRIPTOR_REGION* pDescriptorRegion)
-{
-    XGL_RESULT result = nextTable.CreateDescriptorRegion(device, regionUsage, maxSets, pCreateInfo, pDescriptorRegion);
-    if (XGL_SUCCESS == result) {
-        // Insert this region into Global Region LL at head
-        char str[1024];
-        sprintf(str, "Created Descriptor Region %p", (void*)*pDescriptorRegion);
-        layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, pDescriptorRegion, 0, DRAWSTATE_NONE, "DS", str);
-        loader_platform_thread_lock_mutex(&globalLock);
-        REGION_NODE* pNewNode = (REGION_NODE*)malloc(sizeof(REGION_NODE));
-#if ALLOC_DEBUG
-        printf("Alloc30 #%lu pNewNode addr(%p)\n", ++g_alloc_count, (void*)pNewNode);
-#endif
-        if (NULL == pNewNode) {
-            char str[1024];
-            sprintf(str, "Out of memory while attempting to allocate REGION_NODE in xglCreateDescriptorRegion()");
-            layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, *pDescriptorRegion, 0, DRAWSTATE_OUT_OF_MEMORY, "DS", str);
-        }
-        else {
-            memset(pNewNode, 0, sizeof(REGION_NODE));
-            pNewNode->pNext = g_pRegionHead;
-            g_pRegionHead = pNewNode;
-            XGL_DESCRIPTOR_REGION_CREATE_INFO* pCI = (XGL_DESCRIPTOR_REGION_CREATE_INFO*)&pNewNode->createInfo;
-            memcpy((void*)pCI, pCreateInfo, sizeof(XGL_DESCRIPTOR_REGION_CREATE_INFO));
-            size_t typeCountSize = pNewNode->createInfo.count * sizeof(XGL_DESCRIPTOR_TYPE_COUNT);
-            if (typeCountSize) {
-                XGL_DESCRIPTOR_TYPE_COUNT** ppTypeCount = (XGL_DESCRIPTOR_TYPE_COUNT**)&pNewNode->createInfo.pTypeCount;
-                *ppTypeCount = (XGL_DESCRIPTOR_TYPE_COUNT*)malloc(typeCountSize);
-#if ALLOC_DEBUG
-                printf("Alloc31 #%lu *ppTypeCount addr(%p)\n", ++g_alloc_count, (void*)*ppTypeCount);
-#endif
-                memcpy((void*)*ppTypeCount, pCreateInfo->pTypeCount, typeCountSize);
-            }
-            pNewNode->regionUsage  = regionUsage;
-            pNewNode->updateActive = 0;
-            pNewNode->maxSets      = maxSets;
-            pNewNode->region       = *pDescriptorRegion;
-        }
-        loader_platform_thread_unlock_mutex(&globalLock);
-    }
-    else {
-        // Need to do anything if region create fails?
-    }
-    return result;
-}
-
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglClearDescriptorRegion(XGL_DESCRIPTOR_REGION descriptorRegion)
-{
-    XGL_RESULT result = nextTable.ClearDescriptorRegion(descriptorRegion);
-    if (XGL_SUCCESS == result) {
-        clearDescriptorRegion(descriptorRegion);
-    }
-    return result;
-}
-
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglAllocDescriptorSets(XGL_DESCRIPTOR_REGION descriptorRegion, XGL_DESCRIPTOR_SET_USAGE setUsage, uint32_t count, const XGL_DESCRIPTOR_SET_LAYOUT* pSetLayouts, XGL_DESCRIPTOR_SET* pDescriptorSets, uint32_t* pCount)
-{
-    XGL_RESULT result = nextTable.AllocDescriptorSets(descriptorRegion, setUsage, count, pSetLayouts, pDescriptorSets, pCount);
-    if ((XGL_SUCCESS == result) || (*pCount > 0)) {
-        REGION_NODE *pRegionNode = getRegionNode(descriptorRegion);
-        if (!pRegionNode) {
-            char str[1024];
-            sprintf(str, "Unable to find region node for region %p specified in xglAllocDescriptorSets() call", (void*)descriptorRegion);
-            layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, descriptorRegion, 0, DRAWSTATE_INVALID_REGION, "DS", str);
-        }
-        else {
-            for (uint32_t i = 0; i < *pCount; i++) {
-                char str[1024];
-                sprintf(str, "Created Descriptor Set %p", (void*)pDescriptorSets[i]);
-                layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, pDescriptorSets[i], 0, DRAWSTATE_NONE, "DS", str);
-                // Create new set node and add to head of region nodes
-                SET_NODE* pNewNode = (SET_NODE*)malloc(sizeof(SET_NODE));
-#if ALLOC_DEBUG
-                printf("Alloc32 #%lu pNewNode addr(%p)\n", ++g_alloc_count, (void*)pNewNode);
-#endif
-                if (NULL == pNewNode) {
-                    char str[1024];
-                    sprintf(str, "Out of memory while attempting to allocate SET_NODE in xglAllocDescriptorSets()");
-                    layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, pDescriptorSets[i], 0, DRAWSTATE_OUT_OF_MEMORY, "DS", str);
-                }
-                else {
-                    memset(pNewNode, 0, sizeof(SET_NODE));
-                    // Insert set at head of Set LL for this region
-                    pNewNode->pNext = pRegionNode->pSets;
-                    pRegionNode->pSets = pNewNode;
-                    LAYOUT_NODE* pLayout = getLayoutNode(pSetLayouts[i]);
-                    if (NULL == pLayout) {
-                        char str[1024];
-                        sprintf(str, "Unable to find set layout node for layout %p specified in xglAllocDescriptorSets() call", (void*)pSetLayouts[i]);
-                        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, pSetLayouts[i], 0, DRAWSTATE_INVALID_LAYOUT, "DS", str);
-                    }
-                    pNewNode->pLayouts = pLayout;
-                    pNewNode->region = descriptorRegion;
-                    pNewNode->set = pDescriptorSets[i];
-                    pNewNode->setUsage = setUsage;
-                    pNewNode->descriptorCount = pLayout->endIndex + 1;
-                    size_t descriptorArraySize = sizeof(GENERIC_HEADER*)*pNewNode->descriptorCount;
-                    pNewNode->ppDescriptors = (GENERIC_HEADER**)malloc(descriptorArraySize);
-#if ALLOC_DEBUG
-                    printf("Alloc35 #%lu pSet->ppDescriptors addr(%p)\n", ++g_alloc_count, (void*)pNewNode->ppDescriptors);
-#endif
-                    memset(pNewNode->ppDescriptors, 0, descriptorArraySize);
-                }
-            }
-        }
-    }
-    return result;
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglClearDescriptorSets(XGL_DESCRIPTOR_REGION descriptorRegion, uint32_t count, const XGL_DESCRIPTOR_SET* pDescriptorSets)
-{
-    for (uint32_t i = 0; i < count; i++) {
-        clearDescriptorSet(pDescriptorSets[i]);
-    }
-    nextTable.ClearDescriptorSets(descriptorRegion, count, pDescriptorSets);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglUpdateDescriptors(XGL_DESCRIPTOR_SET descriptorSet, const void* pUpdateChain)
-{
-    if (!dsUpdateActive(descriptorSet)) {
-        char str[1024];
-        sprintf(str, "You must call xglBeginDescriptorRegionUpdate() before this call to xglUpdateDescriptors()!");
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, g_pRegionHead->region, 0, DRAWSTATE_UPDATE_WITHOUT_BEGIN, "DS", str);
-    }
-    else {
-        // pUpdateChain is a Linked-list of XGL_UPDATE_* structures defining the mappings for the descriptors
-        dsUpdate(descriptorSet, (GENERIC_HEADER*)pUpdateChain);
-    }
-
-    nextTable.UpdateDescriptors(descriptorSet, pUpdateChain);
-}
-
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglCreateDynamicViewportState(XGL_DEVICE device, const XGL_DYNAMIC_VP_STATE_CREATE_INFO* pCreateInfo, XGL_DYNAMIC_VP_STATE_OBJECT* pState)
-{
-    XGL_RESULT result = nextTable.CreateDynamicViewportState(device, pCreateInfo, pState);
-    insertDynamicState(*pState, (GENERIC_HEADER*)pCreateInfo, XGL_STATE_BIND_VIEWPORT);
-    return result;
-}
-
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglCreateDynamicRasterState(XGL_DEVICE device, const XGL_DYNAMIC_RS_STATE_CREATE_INFO* pCreateInfo, XGL_DYNAMIC_RS_STATE_OBJECT* pState)
-{
-    XGL_RESULT result = nextTable.CreateDynamicRasterState(device, pCreateInfo, pState);
-    insertDynamicState(*pState, (GENERIC_HEADER*)pCreateInfo, XGL_STATE_BIND_RASTER);
-    return result;
-}
-
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglCreateDynamicColorBlendState(XGL_DEVICE device, const XGL_DYNAMIC_CB_STATE_CREATE_INFO* pCreateInfo, XGL_DYNAMIC_CB_STATE_OBJECT* pState)
-{
-    XGL_RESULT result = nextTable.CreateDynamicColorBlendState(device, pCreateInfo, pState);
-    insertDynamicState(*pState, (GENERIC_HEADER*)pCreateInfo, XGL_STATE_BIND_COLOR_BLEND);
-    return result;
-}
-
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglCreateDynamicDepthStencilState(XGL_DEVICE device, const XGL_DYNAMIC_DS_STATE_CREATE_INFO* pCreateInfo, XGL_DYNAMIC_DS_STATE_OBJECT* pState)
-{
-    XGL_RESULT result = nextTable.CreateDynamicDepthStencilState(device, pCreateInfo, pState);
-    insertDynamicState(*pState, (GENERIC_HEADER*)pCreateInfo, XGL_STATE_BIND_DEPTH_STENCIL);
-    return result;
-}
-
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglCreateCommandBuffer(XGL_DEVICE device, const XGL_CMD_BUFFER_CREATE_INFO* pCreateInfo, XGL_CMD_BUFFER* pCmdBuffer)
-{
-    XGL_RESULT result = nextTable.CreateCommandBuffer(device, pCreateInfo, pCmdBuffer);
-    if (XGL_SUCCESS == result) {
-        loader_platform_thread_lock_mutex(&globalLock);
-        GLOBAL_CB_NODE* pCB = (GLOBAL_CB_NODE*)malloc(sizeof(GLOBAL_CB_NODE));
-#if ALLOC_DEBUG
-        printf("Alloc33 #%lu pCB addr(%p)\n", ++g_alloc_count, (void*)pCB);
-#endif
-        memset(pCB, 0, sizeof(GLOBAL_CB_NODE));
-        pCB->pNextGlobalCBNode = g_pCmdBufferHead;
-        g_pCmdBufferHead = pCB;
-        pCB->cmdBuffer = *pCmdBuffer;
-        pCB->flags = pCreateInfo->flags;
-        pCB->queueNodeIndex = pCreateInfo->queueNodeIndex;
-        pCB->lastVtxBinding = MAX_BINDING;
-        loader_platform_thread_unlock_mutex(&globalLock);
-        updateCBTracking(*pCmdBuffer);
-    }
-    return result;
-}
-
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglBeginCommandBuffer(XGL_CMD_BUFFER cmdBuffer, const XGL_CMD_BUFFER_BEGIN_INFO* pBeginInfo)
-{
-    XGL_RESULT result = nextTable.BeginCommandBuffer(cmdBuffer, pBeginInfo);
-    if (XGL_SUCCESS == result) {
-        GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-        if (pCB) {
-            if (CB_NEW != pCB->state)
-                resetCB(cmdBuffer);
-            pCB->state = CB_UPDATE_ACTIVE;
-        }
-        else {
-            char str[1024];
-            sprintf(str, "In xglBeginCommandBuffer() and unable to find CmdBuffer Node for CB %p!", (void*)cmdBuffer);
-            layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-        }
-        updateCBTracking(cmdBuffer);
-    }
-    return result;
-}
-
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglEndCommandBuffer(XGL_CMD_BUFFER cmdBuffer)
-{
-    XGL_RESULT result = nextTable.EndCommandBuffer(cmdBuffer);
-    if (XGL_SUCCESS == result) {
-        GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-        if (pCB) {
-            pCB->state = CB_UPDATE_COMPLETE;
-            printCB(cmdBuffer);
-        }
-        else {
-            char str[1024];
-            sprintf(str, "In xglEndCommandBuffer() and unable to find CmdBuffer Node for CB %p!", (void*)cmdBuffer);
-            layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-        }
-        updateCBTracking(cmdBuffer);
-        //cbDumpDotFile("cb_dump.dot");
-    }
-    return result;
-}
-
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglResetCommandBuffer(XGL_CMD_BUFFER cmdBuffer)
-{
-    XGL_RESULT result = nextTable.ResetCommandBuffer(cmdBuffer);
-    if (XGL_SUCCESS == result) {
-        resetCB(cmdBuffer);
-        updateCBTracking(cmdBuffer);
-    }
-    return result;
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdBindPipeline(XGL_CMD_BUFFER cmdBuffer, XGL_PIPELINE_BIND_POINT pipelineBindPoint, XGL_PIPELINE pipeline)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_BINDPIPELINE);
-        PIPELINE_NODE* pPN = getPipeline(pipeline);
-        if (pPN) {
-            pCB->lastBoundPipeline = pipeline;
-            loader_platform_thread_lock_mutex(&globalLock);
-            g_lastBoundPipeline = pPN;
-            loader_platform_thread_unlock_mutex(&globalLock);
-        }
-        else {
-            char str[1024];
-            sprintf(str, "Attempt to bind Pipeline %p that doesn't exist!", (void*)pipeline);
-            layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, pipeline, 0, DRAWSTATE_INVALID_PIPELINE, "DS", str);
-        }
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdBindPipeline(cmdBuffer, pipelineBindPoint, pipeline);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdBindDynamicStateObject(XGL_CMD_BUFFER cmdBuffer, XGL_STATE_BIND_POINT stateBindPoint, XGL_DYNAMIC_STATE_OBJECT state)
-{
-    setLastBoundDynamicState(cmdBuffer, state, stateBindPoint);
-    nextTable.CmdBindDynamicStateObject(cmdBuffer, stateBindPoint, state);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdBindDescriptorSet(XGL_CMD_BUFFER cmdBuffer, XGL_PIPELINE_BIND_POINT pipelineBindPoint, XGL_DESCRIPTOR_SET descriptorSet, const uint32_t* pUserData)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_BINDDESCRIPTORSET);
-        if (getSetNode(descriptorSet)) {
-            if (dsUpdateActive(descriptorSet)) {
-                // TODO : This check here needs to be made at QueueSubmit time
-/*
-                char str[1024];
-                sprintf(str, "You must call xglEndDescriptorRegionUpdate(%p) before this call to xglCmdBindDescriptorSet()!", (void*)descriptorSet);
-                layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, descriptorSet, 0, DRAWSTATE_BINDING_DS_NO_END_UPDATE, "DS", str);
-*/
-            }
-            loader_platform_thread_lock_mutex(&globalLock);
-            pCB->lastBoundDescriptorSet = descriptorSet;
-            g_lastBoundDescriptorSet = descriptorSet;
-            loader_platform_thread_unlock_mutex(&globalLock);
-            char str[1024];
-            sprintf(str, "DS %p bound on pipeline %s", (void*)descriptorSet, string_XGL_PIPELINE_BIND_POINT(pipelineBindPoint));
-            layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, descriptorSet, 0, DRAWSTATE_NONE, "DS", str);
-            synchAndPrintDSConfig(cmdBuffer);
-        }
-        else {
-            char str[1024];
-            sprintf(str, "Attempt to bind DS %p that doesn't exist!", (void*)descriptorSet);
-            layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, descriptorSet, 0, DRAWSTATE_INVALID_SET, "DS", str);
-        }
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdBindDescriptorSet(cmdBuffer, pipelineBindPoint, descriptorSet, pUserData);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdBindIndexBuffer(XGL_CMD_BUFFER cmdBuffer, XGL_BUFFER buffer, XGL_GPU_SIZE offset, XGL_INDEX_TYPE indexType)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_BINDINDEXBUFFER);
-        // TODO : Track idxBuffer binding
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdBindIndexBuffer(cmdBuffer, buffer, offset, indexType);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdBindVertexBuffer(XGL_CMD_BUFFER cmdBuffer, XGL_BUFFER buffer, XGL_GPU_SIZE offset, uint32_t binding)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_BINDVERTEXBUFFER);
-        pCB->lastVtxBinding = binding;
-        validateVBBinding(cmdBuffer);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdBindVertexBuffer(cmdBuffer, buffer, offset, binding);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdDraw(XGL_CMD_BUFFER cmdBuffer, uint32_t firstVertex, uint32_t vertexCount, uint32_t firstInstance, uint32_t instanceCount)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_DRAW);
-        pCB->drawCount[DRAW]++;
-        char str[1024];
-        sprintf(str, "xglCmdDraw() call #%lu, reporting DS state:", g_drawCount[DRAW]++);
-        layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_NONE, "DS", str);
-        synchAndPrintDSConfig(cmdBuffer);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdDraw(cmdBuffer, firstVertex, vertexCount, firstInstance, instanceCount);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdDrawIndexed(XGL_CMD_BUFFER cmdBuffer, uint32_t firstIndex, uint32_t indexCount, int32_t vertexOffset, uint32_t firstInstance, uint32_t instanceCount)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_DRAWINDEXED);
-        pCB->drawCount[DRAW_INDEXED]++;
-        char str[1024];
-        sprintf(str, "xglCmdDrawIndexed() call #%lu, reporting DS state:", g_drawCount[DRAW_INDEXED]++);
-        layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_NONE, "DS", str);
-        synchAndPrintDSConfig(cmdBuffer);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdDrawIndexed(cmdBuffer, firstIndex, indexCount, vertexOffset, firstInstance, instanceCount);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdDrawIndirect(XGL_CMD_BUFFER cmdBuffer, XGL_BUFFER buffer, XGL_GPU_SIZE offset, uint32_t count, uint32_t stride)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_DRAWINDIRECT);
-        pCB->drawCount[DRAW_INDIRECT]++;
-        char str[1024];
-        sprintf(str, "xglCmdDrawIndirect() call #%lu, reporting DS state:", g_drawCount[DRAW_INDIRECT]++);
-        layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_NONE, "DS", str);
-        synchAndPrintDSConfig(cmdBuffer);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdDrawIndirect(cmdBuffer, buffer, offset, count, stride);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdDrawIndexedIndirect(XGL_CMD_BUFFER cmdBuffer, XGL_BUFFER buffer, XGL_GPU_SIZE offset, uint32_t count, uint32_t stride)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_DRAWINDEXEDINDIRECT);
-        pCB->drawCount[DRAW_INDEXED_INDIRECT]++;
-        char str[1024];
-        sprintf(str, "xglCmdDrawIndexedIndirect() call #%lu, reporting DS state:", g_drawCount[DRAW_INDEXED_INDIRECT]++);
-        layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_NONE, "DS", str);
-        synchAndPrintDSConfig(cmdBuffer);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdDrawIndexedIndirect(cmdBuffer, buffer, offset, count, stride);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdDispatch(XGL_CMD_BUFFER cmdBuffer, uint32_t x, uint32_t y, uint32_t z)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_DISPATCH);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdDispatch(cmdBuffer, x, y, z);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdDispatchIndirect(XGL_CMD_BUFFER cmdBuffer, XGL_BUFFER buffer, XGL_GPU_SIZE offset)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_DISPATCHINDIRECT);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdDispatchIndirect(cmdBuffer, buffer, offset);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdCopyBuffer(XGL_CMD_BUFFER cmdBuffer, XGL_BUFFER srcBuffer, XGL_BUFFER destBuffer, uint32_t regionCount, const XGL_BUFFER_COPY* pRegions)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_COPYBUFFER);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdCopyBuffer(cmdBuffer, srcBuffer, destBuffer, regionCount, pRegions);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdCopyImage(XGL_CMD_BUFFER cmdBuffer,
-                                             XGL_IMAGE srcImage,
-                                             XGL_IMAGE_LAYOUT srcImageLayout,
-                                             XGL_IMAGE destImage,
-                                             XGL_IMAGE_LAYOUT destImageLayout,
-                                             uint32_t regionCount, const XGL_IMAGE_COPY* pRegions)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_COPYIMAGE);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdCopyImage(cmdBuffer, srcImage, srcImageLayout, destImage, destImageLayout, regionCount, pRegions);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdBlitImage(XGL_CMD_BUFFER cmdBuffer,
-                                             XGL_IMAGE srcImage, XGL_IMAGE_LAYOUT srcImageLayout,
-                                             XGL_IMAGE destImage, XGL_IMAGE_LAYOUT destImageLayout,
-                                             uint32_t regionCount, const XGL_IMAGE_BLIT* pRegions)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_COPYIMAGE);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdBlitImage(cmdBuffer, srcImage, srcImageLayout, destImage, destImageLayout, regionCount, pRegions);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdCopyBufferToImage(XGL_CMD_BUFFER cmdBuffer,
-                                                     XGL_BUFFER srcBuffer,
-                                                     XGL_IMAGE destImage, XGL_IMAGE_LAYOUT destImageLayout,
-                                                     uint32_t regionCount, const XGL_BUFFER_IMAGE_COPY* pRegions)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_COPYBUFFERTOIMAGE);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdCopyBufferToImage(cmdBuffer, srcBuffer, destImage, destImageLayout, regionCount, pRegions);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdCopyImageToBuffer(XGL_CMD_BUFFER cmdBuffer,
-                                                     XGL_IMAGE srcImage, XGL_IMAGE_LAYOUT srcImageLayout,
-                                                     XGL_BUFFER destBuffer,
-                                                     uint32_t regionCount, const XGL_BUFFER_IMAGE_COPY* pRegions)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_COPYIMAGETOBUFFER);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdCopyImageToBuffer(cmdBuffer, srcImage, srcImageLayout, destBuffer, regionCount, pRegions);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdCloneImageData(XGL_CMD_BUFFER cmdBuffer, XGL_IMAGE srcImage, XGL_IMAGE_LAYOUT srcImageLayout, XGL_IMAGE destImage, XGL_IMAGE_LAYOUT destImageLayout)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_CLONEIMAGEDATA);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdCloneImageData(cmdBuffer, srcImage, srcImageLayout, destImage, destImageLayout);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdUpdateBuffer(XGL_CMD_BUFFER cmdBuffer, XGL_BUFFER destBuffer, XGL_GPU_SIZE destOffset, XGL_GPU_SIZE dataSize, const uint32_t* pData)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_UPDATEBUFFER);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdUpdateBuffer(cmdBuffer, destBuffer, destOffset, dataSize, pData);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdFillBuffer(XGL_CMD_BUFFER cmdBuffer, XGL_BUFFER destBuffer, XGL_GPU_SIZE destOffset, XGL_GPU_SIZE fillSize, uint32_t data)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_FILLBUFFER);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdFillBuffer(cmdBuffer, destBuffer, destOffset, fillSize, data);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdClearColorImage(XGL_CMD_BUFFER cmdBuffer,
-                                                   XGL_IMAGE image, XGL_IMAGE_LAYOUT imageLayout,
-                                                   XGL_CLEAR_COLOR color,
-                                                   uint32_t rangeCount, const XGL_IMAGE_SUBRESOURCE_RANGE* pRanges)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_CLEARCOLORIMAGE);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdClearColorImage(cmdBuffer, image, imageLayout, color, rangeCount, pRanges);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdClearDepthStencil(XGL_CMD_BUFFER cmdBuffer,
-                                                     XGL_IMAGE image, XGL_IMAGE_LAYOUT imageLayout,
-                                                     float depth, uint32_t stencil,
-                                                     uint32_t rangeCount, const XGL_IMAGE_SUBRESOURCE_RANGE* pRanges)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_CLEARDEPTHSTENCIL);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdClearDepthStencil(cmdBuffer, image, imageLayout, depth, stencil, rangeCount, pRanges);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdResolveImage(XGL_CMD_BUFFER cmdBuffer,
-                                                XGL_IMAGE srcImage, XGL_IMAGE_LAYOUT srcImageLayout,
-                                                XGL_IMAGE destImage, XGL_IMAGE_LAYOUT destImageLayout,
-                                                uint32_t rectCount, const XGL_IMAGE_RESOLVE* pRects)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_RESOLVEIMAGE);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdResolveImage(cmdBuffer, srcImage, srcImageLayout, destImage, destImageLayout, rectCount, pRects);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdSetEvent(XGL_CMD_BUFFER cmdBuffer, XGL_EVENT event, XGL_PIPE_EVENT pipeEvent)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_SETEVENT);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdSetEvent(cmdBuffer, event, pipeEvent);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdResetEvent(XGL_CMD_BUFFER cmdBuffer, XGL_EVENT event, XGL_PIPE_EVENT pipeEvent)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_RESETEVENT);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdResetEvent(cmdBuffer, event, pipeEvent);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdWaitEvents(XGL_CMD_BUFFER cmdBuffer, const XGL_EVENT_WAIT_INFO* pWaitInfo)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_WAITEVENTS);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdWaitEvents(cmdBuffer, pWaitInfo);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdPipelineBarrier(XGL_CMD_BUFFER cmdBuffer, const XGL_PIPELINE_BARRIER* pBarrier)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_PIPELINEBARRIER);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdPipelineBarrier(cmdBuffer, pBarrier);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdBeginQuery(XGL_CMD_BUFFER cmdBuffer, XGL_QUERY_POOL queryPool, uint32_t slot, XGL_FLAGS flags)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_BEGINQUERY);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdBeginQuery(cmdBuffer, queryPool, slot, flags);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdEndQuery(XGL_CMD_BUFFER cmdBuffer, XGL_QUERY_POOL queryPool, uint32_t slot)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_ENDQUERY);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdEndQuery(cmdBuffer, queryPool, slot);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdResetQueryPool(XGL_CMD_BUFFER cmdBuffer, XGL_QUERY_POOL queryPool, uint32_t startQuery, uint32_t queryCount)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_RESETQUERYPOOL);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdResetQueryPool(cmdBuffer, queryPool, startQuery, queryCount);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdWriteTimestamp(XGL_CMD_BUFFER cmdBuffer, XGL_TIMESTAMP_TYPE timestampType, XGL_BUFFER destBuffer, XGL_GPU_SIZE destOffset)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_WRITETIMESTAMP);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdWriteTimestamp(cmdBuffer, timestampType, destBuffer, destOffset);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdInitAtomicCounters(XGL_CMD_BUFFER cmdBuffer, XGL_PIPELINE_BIND_POINT pipelineBindPoint, uint32_t startCounter, uint32_t counterCount, const uint32_t* pData)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_INITATOMICCOUNTERS);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdInitAtomicCounters(cmdBuffer, pipelineBindPoint, startCounter, counterCount, pData);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdLoadAtomicCounters(XGL_CMD_BUFFER cmdBuffer, XGL_PIPELINE_BIND_POINT pipelineBindPoint, uint32_t startCounter, uint32_t counterCount, XGL_BUFFER srcBuffer, XGL_GPU_SIZE srcOffset)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_LOADATOMICCOUNTERS);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdLoadAtomicCounters(cmdBuffer, pipelineBindPoint, startCounter, counterCount, srcBuffer, srcOffset);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdSaveAtomicCounters(XGL_CMD_BUFFER cmdBuffer, XGL_PIPELINE_BIND_POINT pipelineBindPoint, uint32_t startCounter, uint32_t counterCount, XGL_BUFFER destBuffer, XGL_GPU_SIZE destOffset)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_SAVEATOMICCOUNTERS);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdSaveAtomicCounters(cmdBuffer, pipelineBindPoint, startCounter, counterCount, destBuffer, destOffset);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdBeginRenderPass(XGL_CMD_BUFFER cmdBuffer, const XGL_RENDER_PASS_BEGIN *pRenderPassBegin)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_BEGINRENDERPASS);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdBeginRenderPass(cmdBuffer, pRenderPassBegin);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdEndRenderPass(XGL_CMD_BUFFER cmdBuffer, XGL_RENDER_PASS renderPass)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_ENDRENDERPASS);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdEndRenderPass(cmdBuffer, renderPass);
-}
-
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglDbgRegisterMsgCallback(XGL_INSTANCE instance, XGL_DBG_MSG_CALLBACK_FUNCTION pfnMsgCallback, void* pUserData)
-{
-    // This layer intercepts callbacks
-    XGL_LAYER_DBG_FUNCTION_NODE* pNewDbgFuncNode = (XGL_LAYER_DBG_FUNCTION_NODE*)malloc(sizeof(XGL_LAYER_DBG_FUNCTION_NODE));
-#if ALLOC_DEBUG
-    printf("Alloc34 #%lu pNewDbgFuncNode addr(%p)\n", ++g_alloc_count, (void*)pNewDbgFuncNode);
-#endif
-    if (!pNewDbgFuncNode)
-        return XGL_ERROR_OUT_OF_MEMORY;
-    pNewDbgFuncNode->pfnMsgCallback = pfnMsgCallback;
-    pNewDbgFuncNode->pUserData = pUserData;
-    pNewDbgFuncNode->pNext = g_pDbgFunctionHead;
-    g_pDbgFunctionHead = pNewDbgFuncNode;
-    // force callbacks if DebugAction hasn't been set already other than initial value
-	if (g_actionIsDefault) {
-		g_debugAction = XGL_DBG_LAYER_ACTION_CALLBACK;
-	}
-    XGL_RESULT result = nextTable.DbgRegisterMsgCallback(instance, pfnMsgCallback, pUserData);
-    return result;
-}
-
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglDbgUnregisterMsgCallback(XGL_INSTANCE instance, XGL_DBG_MSG_CALLBACK_FUNCTION pfnMsgCallback)
-{
-    XGL_LAYER_DBG_FUNCTION_NODE *pTrav = g_pDbgFunctionHead;
-    XGL_LAYER_DBG_FUNCTION_NODE *pPrev = pTrav;
-    while (pTrav) {
-        if (pTrav->pfnMsgCallback == pfnMsgCallback) {
-            pPrev->pNext = pTrav->pNext;
-            if (g_pDbgFunctionHead == pTrav)
-                g_pDbgFunctionHead = pTrav->pNext;
-#if ALLOC_DEBUG
-    printf("Free34 #%lu pNewDbgFuncNode addr(%p)\n", ++g_alloc_count, (void*)pTrav);
-#endif
-            free(pTrav);
-            break;
-        }
-        pPrev = pTrav;
-        pTrav = pTrav->pNext;
-    }
-    if (g_pDbgFunctionHead == NULL)
-    {
-        if (g_actionIsDefault)
-            g_debugAction = XGL_DBG_LAYER_ACTION_LOG_MSG;
-        else
-            g_debugAction &= ~XGL_DBG_LAYER_ACTION_CALLBACK;
-    }
-    XGL_RESULT result = nextTable.DbgUnregisterMsgCallback(instance, pfnMsgCallback);
-    return result;
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdDbgMarkerBegin(XGL_CMD_BUFFER cmdBuffer, const char* pMarker)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_DBGMARKERBEGIN);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdDbgMarkerBegin(cmdBuffer, pMarker);
-}
-
-XGL_LAYER_EXPORT void XGLAPI xglCmdDbgMarkerEnd(XGL_CMD_BUFFER cmdBuffer)
-{
-    GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
-    if (pCB) {
-        updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_DBGMARKEREND);
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
-    }
-    nextTable.CmdDbgMarkerEnd(cmdBuffer);
-}
-
-// TODO : Want to pass in a cmdBuffer here based on which state to display
-void drawStateDumpDotFile(char* outFileName)
-{
-    // TODO : Currently just setting cmdBuffer based on global var
-    //dumpDotFile(g_lastDrawStateCmdBuffer, outFileName);
-    dumpGlobalDotFile(outFileName);
-}
-
-void drawStateDumpCommandBufferDotFile(char* outFileName)
-{
-    cbDumpDotFile(outFileName);
-}
-
-void drawStateDumpPngFile(char* outFileName)
-{
-#if defined(_WIN32)
-// FIXME: NEED WINDOWS EQUIVALENT
-        char str[1024];
-        sprintf(str, "Cannot execute dot program yet on Windows.");
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, NULL, 0, DRAWSTATE_MISSING_DOT_PROGRAM, "DS", str);
-#else // WIN32
-    char dotExe[32] = "/usr/bin/dot";
-    if( access(dotExe, X_OK) != -1) {
-        dumpDotFile(g_lastCmdBuffer[getTIDIndex()], "/tmp/tmp.dot");
-        char dotCmd[1024];
-        sprintf(dotCmd, "%s /tmp/tmp.dot -Tpng -o %s", dotExe, outFileName);
-        system(dotCmd);
-        remove("/tmp/tmp.dot");
-    }
-    else {
-        char str[1024];
-        sprintf(str, "Cannot execute dot program at (%s) to dump requested %s file.", dotExe, outFileName);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, NULL, 0, DRAWSTATE_MISSING_DOT_PROGRAM, "DS", str);
-    }
-#endif // WIN32
-}
-
-XGL_LAYER_EXPORT void* XGLAPI xglGetProcAddr(XGL_PHYSICAL_GPU gpu, const char* funcName)
-{
-    XGL_BASE_LAYER_OBJECT* gpuw = (XGL_BASE_LAYER_OBJECT *) gpu;
-
-    if (gpu == NULL)
-        return NULL;
-    pCurObj = gpuw;
-    loader_platform_thread_once(&g_initOnce, initDrawState);
-
-    if (!strcmp(funcName, "xglGetProcAddr"))
-        return (void *) xglGetProcAddr;
-    if (!strcmp(funcName, "xglCreateDevice"))
-        return (void*) xglCreateDevice;
-    if (!strcmp(funcName, "xglDestroyDevice"))
-        return (void*) xglDestroyDevice;
-    if (!strcmp(funcName, "xglEnumerateLayers"))
-        return (void*) xglEnumerateLayers;
-    if (!strcmp(funcName, "xglQueueSubmit"))
-        return (void*) xglQueueSubmit;
-    if (!strcmp(funcName, "xglDestroyObject"))
-        return (void*) xglDestroyObject;
-    if (!strcmp(funcName, "xglCreateBufferView"))
-        return (void*) xglCreateBufferView;
-    if (!strcmp(funcName, "xglCreateImageView"))
-        return (void*) xglCreateImageView;
-    if (!strcmp(funcName, "xglCreateGraphicsPipeline"))
-        return (void*) xglCreateGraphicsPipeline;
-    if (!strcmp(funcName, "xglCreateGraphicsPipelineDerivative"))
-        return (void*) xglCreateGraphicsPipelineDerivative;
-    if (!strcmp(funcName, "xglCreateSampler"))
-        return (void*) xglCreateSampler;
-    if (!strcmp(funcName, "xglCreateDescriptorSetLayout"))
-        return (void*) xglCreateDescriptorSetLayout;
-    if (!strcmp(funcName, "xglBeginDescriptorRegionUpdate"))
-        return (void*) xglBeginDescriptorRegionUpdate;
-    if (!strcmp(funcName, "xglEndDescriptorRegionUpdate"))
-        return (void*) xglEndDescriptorRegionUpdate;
-    if (!strcmp(funcName, "xglCreateDescriptorRegion"))
-        return (void*) xglCreateDescriptorRegion;
-    if (!strcmp(funcName, "xglClearDescriptorRegion"))
-        return (void*) xglClearDescriptorRegion;
-    if (!strcmp(funcName, "xglAllocDescriptorSets"))
-        return (void*) xglAllocDescriptorSets;
-    if (!strcmp(funcName, "xglClearDescriptorSets"))
-        return (void*) xglClearDescriptorSets;
-    if (!strcmp(funcName, "xglUpdateDescriptors"))
-        return (void*) xglUpdateDescriptors;
-    if (!strcmp(funcName, "xglCreateDynamicViewportState"))
-        return (void*) xglCreateDynamicViewportState;
-    if (!strcmp(funcName, "xglCreateDynamicRasterState"))
-        return (void*) xglCreateDynamicRasterState;
-    if (!strcmp(funcName, "xglCreateDynamicColorBlendState"))
-        return (void*) xglCreateDynamicColorBlendState;
-    if (!strcmp(funcName, "xglCreateDynamicDepthStencilState"))
-        return (void*) xglCreateDynamicDepthStencilState;
-    if (!strcmp(funcName, "xglCreateCommandBuffer"))
-        return (void*) xglCreateCommandBuffer;
-    if (!strcmp(funcName, "xglBeginCommandBuffer"))
-        return (void*) xglBeginCommandBuffer;
-    if (!strcmp(funcName, "xglEndCommandBuffer"))
-        return (void*) xglEndCommandBuffer;
-    if (!strcmp(funcName, "xglResetCommandBuffer"))
-        return (void*) xglResetCommandBuffer;
-    if (!strcmp(funcName, "xglCmdBindPipeline"))
-        return (void*) xglCmdBindPipeline;
-    if (!strcmp(funcName, "xglCmdBindDynamicStateObject"))
-        return (void*) xglCmdBindDynamicStateObject;
-    if (!strcmp(funcName, "xglCmdBindDescriptorSet"))
-        return (void*) xglCmdBindDescriptorSet;
-    if (!strcmp(funcName, "xglCmdBindVertexBuffer"))
-        return (void*) xglCmdBindVertexBuffer;
-    if (!strcmp(funcName, "xglCmdBindIndexBuffer"))
-        return (void*) xglCmdBindIndexBuffer;
-    if (!strcmp(funcName, "xglCmdDraw"))
-        return (void*) xglCmdDraw;
-    if (!strcmp(funcName, "xglCmdDrawIndexed"))
-        return (void*) xglCmdDrawIndexed;
-    if (!strcmp(funcName, "xglCmdDrawIndirect"))
-        return (void*) xglCmdDrawIndirect;
-    if (!strcmp(funcName, "xglCmdDrawIndexedIndirect"))
-        return (void*) xglCmdDrawIndexedIndirect;
-    if (!strcmp(funcName, "xglCmdDispatch"))
-        return (void*) xglCmdDispatch;
-    if (!strcmp(funcName, "xglCmdDispatchIndirect"))
-        return (void*) xglCmdDispatchIndirect;
-    if (!strcmp(funcName, "xglCmdCopyBuffer"))
-        return (void*) xglCmdCopyBuffer;
-    if (!strcmp(funcName, "xglCmdCopyImage"))
-        return (void*) xglCmdCopyImage;
-    if (!strcmp(funcName, "xglCmdCopyBufferToImage"))
-        return (void*) xglCmdCopyBufferToImage;
-    if (!strcmp(funcName, "xglCmdCopyImageToBuffer"))
-        return (void*) xglCmdCopyImageToBuffer;
-    if (!strcmp(funcName, "xglCmdCloneImageData"))
-        return (void*) xglCmdCloneImageData;
-    if (!strcmp(funcName, "xglCmdUpdateBuffer"))
-        return (void*) xglCmdUpdateBuffer;
-    if (!strcmp(funcName, "xglCmdFillBuffer"))
-        return (void*) xglCmdFillBuffer;
-    if (!strcmp(funcName, "xglCmdClearColorImage"))
-        return (void*) xglCmdClearColorImage;
-    if (!strcmp(funcName, "xglCmdClearDepthStencil"))
-        return (void*) xglCmdClearDepthStencil;
-    if (!strcmp(funcName, "xglCmdResolveImage"))
-        return (void*) xglCmdResolveImage;
-    if (!strcmp(funcName, "xglCmdSetEvent"))
-        return (void*) xglCmdSetEvent;
-    if (!strcmp(funcName, "xglCmdResetEvent"))
-        return (void*) xglCmdResetEvent;
-    if (!strcmp(funcName, "xglCmdWaitEvents"))
-        return (void*) xglCmdWaitEvents;
-    if (!strcmp(funcName, "xglCmdPipelineBarrier"))
-        return (void*) xglCmdPipelineBarrier;
-    if (!strcmp(funcName, "xglCmdBeginQuery"))
-        return (void*) xglCmdBeginQuery;
-    if (!strcmp(funcName, "xglCmdEndQuery"))
-        return (void*) xglCmdEndQuery;
-    if (!strcmp(funcName, "xglCmdResetQueryPool"))
-        return (void*) xglCmdResetQueryPool;
-    if (!strcmp(funcName, "xglCmdWriteTimestamp"))
-        return (void*) xglCmdWriteTimestamp;
-    if (!strcmp(funcName, "xglCmdInitAtomicCounters"))
-        return (void*) xglCmdInitAtomicCounters;
-    if (!strcmp(funcName, "xglCmdLoadAtomicCounters"))
-        return (void*) xglCmdLoadAtomicCounters;
-    if (!strcmp(funcName, "xglCmdSaveAtomicCounters"))
-        return (void*) xglCmdSaveAtomicCounters;
-    if (!strcmp(funcName, "xglCmdBeginRenderPass"))
-        return (void*) xglCmdBeginRenderPass;
-    if (!strcmp(funcName, "xglCmdEndRenderPass"))
-        return (void*) xglCmdEndRenderPass;
-    if (!strcmp(funcName, "xglDbgRegisterMsgCallback"))
-        return (void*) xglDbgRegisterMsgCallback;
-    if (!strcmp(funcName, "xglDbgUnregisterMsgCallback"))
-        return (void*) xglDbgUnregisterMsgCallback;
-    if (!strcmp(funcName, "xglCmdDbgMarkerBegin"))
-        return (void*) xglCmdDbgMarkerBegin;
-    if (!strcmp(funcName, "xglCmdDbgMarkerEnd"))
-        return (void*) xglCmdDbgMarkerEnd;
-    if (!strcmp("drawStateDumpDotFile", funcName))
-        return drawStateDumpDotFile;
-    if (!strcmp("drawStateDumpCommandBufferDotFile", funcName))
-        return drawStateDumpCommandBufferDotFile;
-    if (!strcmp("drawStateDumpPngFile", funcName))
-        return drawStateDumpPngFile;
-    else {
-        if (gpuw->pGPA == NULL)
-            return NULL;
-        return gpuw->pGPA(gpuw->nextObject, funcName);
-    }
-}
diff --git a/layers/draw_state.cpp b/layers/draw_state.cpp
index 520b6a3..bbbcb58 100644
--- a/layers/draw_state.cpp
+++ b/layers/draw_state.cpp
@@ -46,9 +46,10 @@
 unordered_map<XGL_BUFFER_VIEW, BUFFER_NODE*> bufferMap;
 unordered_map<XGL_DYNAMIC_STATE_OBJECT, DYNAMIC_STATE_NODE*> dynamicStateMap;
 unordered_map<XGL_PIPELINE, PIPELINE_NODE*> pipelineMap;
-unordered_map<XGL_DESCRIPTOR_REGION, REGION_NODE*> regionMap;
+unordered_map<XGL_DESCRIPTOR_POOL, POOL_NODE*> poolMap;
 unordered_map<XGL_DESCRIPTOR_SET, SET_NODE*> setMap;
 unordered_map<XGL_DESCRIPTOR_SET_LAYOUT, LAYOUT_NODE*> layoutMap;
+// Map for layout chains
 unordered_map<XGL_CMD_BUFFER, GLOBAL_CB_NODE*> cmdBufferMap;
 unordered_map<XGL_RENDER_PASS, XGL_RENDER_PASS_CREATE_INFO*> renderPassMap;
 unordered_map<XGL_FRAMEBUFFER, XGL_FRAMEBUFFER_CREATE_INFO*> frameBufferMap;
@@ -92,8 +93,8 @@
             return "CMD_BINDPIPELINEDELTA";
         case CMD_BINDDYNAMICSTATEOBJECT:
             return "CMD_BINDDYNAMICSTATEOBJECT";
-        case CMD_BINDDESCRIPTORSET:
-            return "CMD_BINDDESCRIPTORSET";
+        case CMD_BINDDESCRIPTORSETS:
+            return "CMD_BINDDESCRIPTORSETS";
         case CMD_BINDINDEXBUFFER:
             return "CMD_BINDINDEXBUFFER";
         case CMD_BINDVERTEXBUFFER:
@@ -114,6 +115,8 @@
             return "CMD_COPYBUFFER";
         case CMD_COPYIMAGE:
             return "CMD_COPYIMAGE";
+        case CMD_BLITIMAGE:
+            return "CMD_BLITIMAGE";
         case CMD_COPYBUFFERTOIMAGE:
             return "CMD_COPYBUFFERTOIMAGE";
         case CMD_COPYIMAGETOBUFFER:
@@ -527,16 +530,16 @@
 
 // Block of code at start here specifically for managing/tracking DSs
 
-// Return Region node ptr for specified region or else NULL
-static REGION_NODE* getRegionNode(XGL_DESCRIPTOR_REGION region)
+// Return Pool node ptr for specified pool or else NULL
+static POOL_NODE* getPoolNode(XGL_DESCRIPTOR_POOL pool)
 {
     loader_platform_thread_lock_mutex(&globalLock);
-    if (regionMap.find(region) == regionMap.end()) {
+    if (poolMap.find(pool) == poolMap.end()) {
         loader_platform_thread_unlock_mutex(&globalLock);
         return NULL;
     }
     loader_platform_thread_unlock_mutex(&globalLock);
-    return regionMap[region];
+    return poolMap[pool];
 }
 // Return Set node ptr for specified set or else NULL
 static SET_NODE* getSetNode(XGL_DESCRIPTOR_SET set)
@@ -550,21 +553,21 @@
     return setMap[set];
 }
 
-// Return XGL_TRUE if DS Exists and is within an xglBeginDescriptorRegionUpdate() call sequence, otherwise XGL_FALSE
+// Return XGL_TRUE if DS Exists and is within an xglBeginDescriptorPoolUpdate() call sequence, otherwise XGL_FALSE
 static bool32_t dsUpdateActive(XGL_DESCRIPTOR_SET ds)
 {
     // Note, both "get" functions use global mutex so this guy does not
     SET_NODE* pTrav = getSetNode(ds);
     if (pTrav) {
-        REGION_NODE* pRegion = getRegionNode(pTrav->region);
-        if (pRegion) {
-            return pRegion->updateActive;
+        POOL_NODE* pPool = getPoolNode(pTrav->pool);
+        if (pPool) {
+            return pPool->updateActive;
         }
     }
     return XGL_FALSE;
 }
 
-static LAYOUT_NODE* getLayoutNode(XGL_DESCRIPTOR_SET_LAYOUT layout) {
+static LAYOUT_NODE* getLayoutNode(const XGL_DESCRIPTOR_SET_LAYOUT layout) {
     loader_platform_thread_lock_mutex(&globalLock);
     if (layoutMap.find(layout) == layoutMap.end()) {
         loader_platform_thread_unlock_mutex(&globalLock);
@@ -574,54 +577,105 @@
     return layoutMap[layout];
 }
 
-static uint32_t getUpdateIndex(GENERIC_HEADER* pUpdateStruct)
+// For given update struct, return binding
+static uint32_t getUpdateBinding(const GENERIC_HEADER* pUpdateStruct)
 {
     switch (pUpdateStruct->sType)
     {
         case XGL_STRUCTURE_TYPE_UPDATE_SAMPLERS:
-            return ((XGL_UPDATE_SAMPLERS*)pUpdateStruct)->index;
+            return ((XGL_UPDATE_SAMPLERS*)pUpdateStruct)->binding;
         case XGL_STRUCTURE_TYPE_UPDATE_SAMPLER_TEXTURES:
-            return ((XGL_UPDATE_SAMPLER_TEXTURES*)pUpdateStruct)->index;
+            return ((XGL_UPDATE_SAMPLER_TEXTURES*)pUpdateStruct)->binding;
         case XGL_STRUCTURE_TYPE_UPDATE_IMAGES:
-            return ((XGL_UPDATE_IMAGES*)pUpdateStruct)->index;
+            return ((XGL_UPDATE_IMAGES*)pUpdateStruct)->binding;
         case XGL_STRUCTURE_TYPE_UPDATE_BUFFERS:
-            return ((XGL_UPDATE_BUFFERS*)pUpdateStruct)->index;
+            return ((XGL_UPDATE_BUFFERS*)pUpdateStruct)->binding;
         case XGL_STRUCTURE_TYPE_UPDATE_AS_COPY:
-            return ((XGL_UPDATE_AS_COPY*)pUpdateStruct)->descriptorIndex;
+            return ((XGL_UPDATE_AS_COPY*)pUpdateStruct)->binding;
         default:
             // TODO : Flag specific error for this case
+            assert(0);
             return 0;
     }
 }
-
-static uint32_t getUpdateUpperBound(GENERIC_HEADER* pUpdateStruct)
+// Return count for given update struct
+static uint32_t getUpdateArrayIndex(const GENERIC_HEADER* pUpdateStruct)
 {
     switch (pUpdateStruct->sType)
     {
         case XGL_STRUCTURE_TYPE_UPDATE_SAMPLERS:
-            return (((XGL_UPDATE_SAMPLERS*)pUpdateStruct)->count + ((XGL_UPDATE_SAMPLERS*)pUpdateStruct)->index);
+            return (((XGL_UPDATE_SAMPLERS*)pUpdateStruct)->arrayIndex);
         case XGL_STRUCTURE_TYPE_UPDATE_SAMPLER_TEXTURES:
-            return (((XGL_UPDATE_SAMPLER_TEXTURES*)pUpdateStruct)->count + ((XGL_UPDATE_SAMPLER_TEXTURES*)pUpdateStruct)->index);
+            return (((XGL_UPDATE_SAMPLER_TEXTURES*)pUpdateStruct)->arrayIndex);
         case XGL_STRUCTURE_TYPE_UPDATE_IMAGES:
-            return (((XGL_UPDATE_IMAGES*)pUpdateStruct)->count + ((XGL_UPDATE_IMAGES*)pUpdateStruct)->index);
+            return (((XGL_UPDATE_IMAGES*)pUpdateStruct)->arrayIndex);
         case XGL_STRUCTURE_TYPE_UPDATE_BUFFERS:
-            return (((XGL_UPDATE_BUFFERS*)pUpdateStruct)->count + ((XGL_UPDATE_BUFFERS*)pUpdateStruct)->index);
+            return (((XGL_UPDATE_BUFFERS*)pUpdateStruct)->arrayIndex);
         case XGL_STRUCTURE_TYPE_UPDATE_AS_COPY:
             // TODO : Need to understand this case better and make sure code is correct
-            return (((XGL_UPDATE_AS_COPY*)pUpdateStruct)->count + ((XGL_UPDATE_AS_COPY*)pUpdateStruct)->descriptorIndex);
+            return (((XGL_UPDATE_AS_COPY*)pUpdateStruct)->arrayElement);
         default:
             // TODO : Flag specific error for this case
+            assert(0);
             return 0;
     }
 }
-
+// Return count for given update struct
+static uint32_t getUpdateCount(const GENERIC_HEADER* pUpdateStruct)
+{
+    switch (pUpdateStruct->sType)
+    {
+        case XGL_STRUCTURE_TYPE_UPDATE_SAMPLERS:
+            return (((XGL_UPDATE_SAMPLERS*)pUpdateStruct)->count);
+        case XGL_STRUCTURE_TYPE_UPDATE_SAMPLER_TEXTURES:
+            return (((XGL_UPDATE_SAMPLER_TEXTURES*)pUpdateStruct)->count);
+        case XGL_STRUCTURE_TYPE_UPDATE_IMAGES:
+            return (((XGL_UPDATE_IMAGES*)pUpdateStruct)->count);
+        case XGL_STRUCTURE_TYPE_UPDATE_BUFFERS:
+            return (((XGL_UPDATE_BUFFERS*)pUpdateStruct)->count);
+        case XGL_STRUCTURE_TYPE_UPDATE_AS_COPY:
+            // TODO : Need to understand this case better and make sure code is correct
+            return (((XGL_UPDATE_AS_COPY*)pUpdateStruct)->count);
+        default:
+            // TODO : Flag specific error for this case
+            assert(0);
+            return 0;
+    }
+}
+// For given Layout Node and binding, return index where that binding begins
+static uint32_t getBindingStartIndex(const LAYOUT_NODE* pLayout, const uint32_t binding)
+{
+    uint32_t offsetIndex = 0;
+    for (uint32_t i = 0; i<binding; i++) {
+        offsetIndex += pLayout->createInfo.pBinding[i].count;
+    }
+    return offsetIndex;
+}
+// For given layout node and binding, return last index that is updated
+static uint32_t getBindingEndIndex(const LAYOUT_NODE* pLayout, const uint32_t binding)
+{
+    uint32_t offsetIndex = 0;
+    for (uint32_t i = 0; i<=binding; i++) {
+        offsetIndex += pLayout->createInfo.pBinding[i].count;
+    }
+    return offsetIndex-1;
+}
+// For given layout and update, return the first overall index of the layout that is update
+static uint32_t getUpdateStartIndex(const LAYOUT_NODE* pLayout, const GENERIC_HEADER* pUpdateStruct)
+{
+    return (getBindingStartIndex(pLayout, getUpdateBinding(pUpdateStruct))+getUpdateArrayIndex(pUpdateStruct));
+}
+// For given layout and update, return the last overall index of the layout that is update
+static uint32_t getUpdateEndIndex(const LAYOUT_NODE* pLayout, const GENERIC_HEADER* pUpdateStruct)
+{
+    return (getBindingStartIndex(pLayout, getUpdateBinding(pUpdateStruct))+getUpdateArrayIndex(pUpdateStruct)+getUpdateCount(pUpdateStruct)-1);
+}
 // Verify that the descriptor type in the update struct matches what's expected by the layout
-static bool32_t validateUpdateType(GENERIC_HEADER* pUpdateStruct, const LAYOUT_NODE* pLayout)//XGL_DESCRIPTOR_TYPE type)
+static bool32_t validateUpdateType(const LAYOUT_NODE* pLayout, const GENERIC_HEADER* pUpdateStruct)
 {
     // First get actual type of update
     XGL_DESCRIPTOR_TYPE actualType;
     uint32_t i = 0;
-    uint32_t bound = getUpdateUpperBound(pUpdateStruct);
     switch (pUpdateStruct->sType)
     {
         case XGL_STRUCTURE_TYPE_UPDATE_SAMPLERS:
@@ -643,20 +697,12 @@
             // TODO : Flag specific error for this case
             return 0;
     }
-    for (i = getUpdateIndex(pUpdateStruct); i < bound; i++) {
+    for (i = getUpdateStartIndex(pLayout, pUpdateStruct); i <= getUpdateEndIndex(pLayout, pUpdateStruct); i++) {
         if (pLayout->pTypes[i] != actualType)
             return 0;
     }
     return 1;
 }
-
-// Verify that update region for this update does not exceed max layout index for this type
-static bool32_t validateUpdateSize(GENERIC_HEADER* pUpdateStruct, uint32_t layoutIdx)
-{
-    if ((getUpdateUpperBound(pUpdateStruct)-1) > layoutIdx)
-        return 0;
-    return 1;
-}
 // Determine the update type, allocate a new struct of that type, shadow the given pUpdate
 //   struct into the new struct and return ptr to shadow struct cast as GENERIC_HEADER
 // NOTE : Calls to this function should be wrapped in mutex
@@ -669,8 +715,8 @@
     size_t baseBuffAddr = 0;
     XGL_UPDATE_BUFFERS* pUBCI;
     XGL_UPDATE_IMAGES* pUICI;
-    XGL_IMAGE_VIEW_ATTACH_INFO*** pppLocalImageViews = NULL;
-    XGL_BUFFER_VIEW_ATTACH_INFO*** pppLocalBufferViews = NULL;
+    XGL_IMAGE_VIEW_ATTACH_INFO** ppLocalImageViews = NULL;
+    XGL_BUFFER_VIEW_ATTACH_INFO** ppLocalBufferViews = NULL;
     char str[1024];
     switch (pUpdate->sType)
     {
@@ -714,18 +760,13 @@
             printf("Alloc15 #%lu pNewNode addr(%p)\n", ++g_alloc_count, (void*)pNewNode);
 #endif
             memcpy(pNewNode, pUpdate, sizeof(XGL_UPDATE_IMAGES));
-            base_array_size = sizeof(XGL_IMAGE_VIEW_ATTACH_INFO*) * ((XGL_UPDATE_IMAGES*)pNewNode)->count;
-            total_array_size = (sizeof(XGL_IMAGE_VIEW_ATTACH_INFO) * ((XGL_UPDATE_IMAGES*)pNewNode)->count) + base_array_size;
-            pppLocalImageViews = (XGL_IMAGE_VIEW_ATTACH_INFO***)&((XGL_UPDATE_IMAGES*)pNewNode)->pImageViews;
-            *pppLocalImageViews = (XGL_IMAGE_VIEW_ATTACH_INFO**)malloc(total_array_size);
+            total_array_size = (sizeof(XGL_IMAGE_VIEW_ATTACH_INFO) * ((XGL_UPDATE_IMAGES*)pNewNode)->count);
+            ppLocalImageViews = (XGL_IMAGE_VIEW_ATTACH_INFO**)&(((XGL_UPDATE_IMAGES*)pNewNode)->pImageViews);
+            *ppLocalImageViews = (XGL_IMAGE_VIEW_ATTACH_INFO*)malloc(total_array_size);
 #if ALLOC_DEBUG
-            printf("Alloc16 #%lu *pppLocalImageViews addr(%p)\n", ++g_alloc_count, (void*)*pppLocalImageViews);
+            printf("Alloc16 #%lu *pppLocalImageViews addr(%p)\n", ++g_alloc_count, (void*)*ppLocalImageViews);
 #endif
-            baseBuffAddr = (size_t)(*pppLocalImageViews) + base_array_size;
-            for (uint32_t i = 0; i < pUICI->count; i++) {
-                (*pppLocalImageViews)[i] = (XGL_IMAGE_VIEW_ATTACH_INFO*)(baseBuffAddr + (i * sizeof(XGL_IMAGE_VIEW_ATTACH_INFO)));
-                memcpy((*pppLocalImageViews)[i], pUICI->pImageViews[i], sizeof(XGL_IMAGE_VIEW_ATTACH_INFO));
-            }
+            memcpy((void*)*ppLocalImageViews, pUICI->pImageViews, total_array_size);
             break;
         case XGL_STRUCTURE_TYPE_UPDATE_BUFFERS:
             pUBCI = (XGL_UPDATE_BUFFERS*)pUpdate;
@@ -734,19 +775,13 @@
             printf("Alloc17 #%lu pNewNode addr(%p)\n", ++g_alloc_count, (void*)pNewNode);
 #endif
             memcpy(pNewNode, pUpdate, sizeof(XGL_UPDATE_BUFFERS));
-            base_array_size = sizeof(XGL_BUFFER_VIEW_ATTACH_INFO*) * pUBCI->count;
-            total_array_size = (sizeof(XGL_BUFFER_VIEW_ATTACH_INFO) * pUBCI->count) + base_array_size;
-            pppLocalBufferViews = (XGL_BUFFER_VIEW_ATTACH_INFO***)&((XGL_UPDATE_BUFFERS*)pNewNode)->pBufferViews;
-            *pppLocalBufferViews = (XGL_BUFFER_VIEW_ATTACH_INFO**)malloc(total_array_size);
+            total_array_size = (sizeof(XGL_BUFFER_VIEW_ATTACH_INFO) * pUBCI->count);
+            ppLocalBufferViews = (XGL_BUFFER_VIEW_ATTACH_INFO**)&(((XGL_UPDATE_BUFFERS*)pNewNode)->pBufferViews);
+            *ppLocalBufferViews = (XGL_BUFFER_VIEW_ATTACH_INFO*)malloc(total_array_size);
 #if ALLOC_DEBUG
-            printf("Alloc18 #%lu *pppLocalBufferViews addr(%p)\n", ++g_alloc_count, (void*)*pppLocalBufferViews);
+            printf("Alloc18 #%lu *pppLocalBufferViews addr(%p)\n", ++g_alloc_count, (void*)*ppLocalBufferViews);
 #endif
-            baseBuffAddr = (size_t)(*pppLocalBufferViews) + base_array_size;
-            for (uint32_t i = 0; i < pUBCI->count; i++) {
-                // Set ptr and then copy data into that ptr
-                (*pppLocalBufferViews)[i] = (XGL_BUFFER_VIEW_ATTACH_INFO*)(baseBuffAddr + (i * sizeof(XGL_BUFFER_VIEW_ATTACH_INFO)));
-                memcpy((*pppLocalBufferViews)[i], pUBCI->pBufferViews[i], sizeof(XGL_BUFFER_VIEW_ATTACH_INFO));
-            }
+            memcpy((void*)*ppLocalBufferViews, pUBCI->pBufferViews, total_array_size);
             break;
         case XGL_STRUCTURE_TYPE_UPDATE_AS_COPY:
             pNewNode = (GENERIC_HEADER*)malloc(sizeof(XGL_UPDATE_AS_COPY));
@@ -764,8 +799,8 @@
     pNewNode->pNext = NULL;
     return pNewNode;
 }
-// For given ds, update its mapping based on pUpdateChain linked-list
-static void dsUpdate(XGL_DESCRIPTOR_SET ds, GENERIC_HEADER* pUpdateChain)
+// For given ds, update its mapping based on ppUpdateArray
+static void dsUpdate(XGL_DESCRIPTOR_SET ds, uint32_t updateCount, const void** ppUpdateArray)
 {
     SET_NODE* pSet = getSetNode(ds);
     loader_platform_thread_lock_mutex(&globalLock);
@@ -773,40 +808,37 @@
     LAYOUT_NODE* pLayout = NULL;
     XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO* pLayoutCI = NULL;
     // TODO : If pCIList is NULL, flag error
-    GENERIC_HEADER* pUpdates = pUpdateChain;
     // Perform all updates
-    while (pUpdates) {
-        pLayout = pSet->pLayouts;
-        // For each update first find the layout section that it overlaps
-        while (pLayout && (pLayout->startIndex > getUpdateIndex(pUpdates))) {
-            pLayout = pLayout->pPriorSetLayout;
-        }
-        if (!pLayout) {
+    for (uint32_t i = 0; i < updateCount; i++) {
+        GENERIC_HEADER* pUpdate = (GENERIC_HEADER*)ppUpdateArray[i];
+        pLayout = pSet->pLayout;
+        // Make sure that binding is within bounds
+        if (pLayout->createInfo.count < getUpdateBinding(pUpdate)) {
             char str[1024];
-            sprintf(str, "Descriptor Set %p does not have index to match update index %u for update type %s!", ds, getUpdateIndex(pUpdates), string_XGL_STRUCTURE_TYPE(pUpdates->sType));
+            sprintf(str, "Descriptor Set %p does not have binding to match update binding %u for update type %s!", ds, getUpdateBinding(pUpdate), string_XGL_STRUCTURE_TYPE(pUpdate->sType));
             layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, ds, 0, DRAWSTATE_INVALID_UPDATE_INDEX, "DS", str);
         }
         else {
-            // Next verify that update is correct size
-            if (!validateUpdateSize(pUpdates, pLayout->endIndex)) {
+            // Next verify that update falls within size of given binding
+            if (getBindingEndIndex(pLayout, getUpdateBinding(pUpdate)) < getUpdateEndIndex(pLayout, pUpdate)) {
                 char str[48*1024]; // TODO : Keep count of layout CI structs and size this string dynamically based on that count
-                pLayoutCI = (XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO*)pLayout->pCreateInfoList;
-                string DSstr = xgl_print_xgl_descriptor_set_layout_create_info(pLayoutCI, "{DS}    ").c_str();
-                sprintf(str, "Descriptor update type of %s is out of bounds for matching layout w/ CI:\n%s!", string_XGL_STRUCTURE_TYPE(pUpdates->sType), DSstr.c_str());
+                pLayoutCI = &pLayout->createInfo;
+                string DSstr = xgl_print_xgl_descriptor_set_layout_create_info(pLayoutCI, "{DS}    ");
+                sprintf(str, "Descriptor update type of %s is out of bounds for matching binding %u in Layout w/ CI:\n%s!", string_XGL_STRUCTURE_TYPE(pUpdate->sType), getUpdateBinding(pUpdate), DSstr.c_str());
                 layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, ds, 0, DRAWSTATE_DESCRIPTOR_UPDATE_OUT_OF_BOUNDS, "DS", str);
             }
             else { // TODO : should we skip update on a type mismatch or force it?
-                // We have the right layout section, now verify that update is of the right type
-                if (!validateUpdateType(pUpdates, pLayout)) {
+                // Layout bindings match w/ update ok, now verify that update is of the right type
+                if (!validateUpdateType(pLayout, pUpdate)) {
                     char str[1024];
-                    sprintf(str, "Descriptor update type of %s does not match overlapping layout type!", string_XGL_STRUCTURE_TYPE(pUpdates->sType));
+                    sprintf(str, "Descriptor update type of %s does not match overlapping binding type!", string_XGL_STRUCTURE_TYPE(pUpdate->sType));
                     layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, ds, 0, DRAWSTATE_DESCRIPTOR_TYPE_MISMATCH, "DS", str);
                 }
                 else {
                     // Save the update info
                     // TODO : Info message that update successful
                     // Create new update struct for this set's shadow copy
-                    GENERIC_HEADER* pNewNode = shadowUpdateNode(pUpdates);
+                    GENERIC_HEADER* pNewNode = shadowUpdateNode(pUpdate);
                     if (NULL == pNewNode) {
                         char str[1024];
                         sprintf(str, "Out of memory while attempting to allocate UPDATE struct in xglUpdateDescriptors()");
@@ -817,15 +849,14 @@
                         pNewNode->pNext = pSet->pUpdateStructs;
                         pSet->pUpdateStructs = pNewNode;
                         // Now update appropriate descriptor(s) to point to new Update node
-                        for (uint32_t i = getUpdateIndex(pUpdates); i < getUpdateUpperBound(pUpdates); i++) {
-                            assert(i<pSet->descriptorCount);
-                            pSet->ppDescriptors[i] = pNewNode;
+                        for (uint32_t j = getUpdateStartIndex(pLayout, pUpdate); j <= getUpdateEndIndex(pLayout, pUpdate); j++) {
+                            assert(j<pSet->descriptorCount);
+                            pSet->ppDescriptors[j] = pNewNode;
                         }
                     }
                 }
             }
         }
-        pUpdates = (GENERIC_HEADER*)pUpdates->pNext;
     }
     loader_platform_thread_unlock_mutex(&globalLock);
 }
@@ -908,11 +939,11 @@
         free(pFreeUpdate);
     }
 }
-// Free all DS Regions including their Sets & related sub-structs
+// Free all DS Pools including their Sets & related sub-structs
 // NOTE : Calls to this function should be wrapped in mutex
-static void freeRegions()
+static void freePools()
 {
-    for (unordered_map<XGL_DESCRIPTOR_REGION, REGION_NODE*>::iterator ii=regionMap.begin(); ii!=regionMap.end(); ++ii) {
+    for (unordered_map<XGL_DESCRIPTOR_POOL, POOL_NODE*>::iterator ii=poolMap.begin(); ii!=poolMap.end(); ++ii) {
         SET_NODE* pSet = (*ii).second->pSets;
         SET_NODE* pFreeSet = pSet;
         while (pSet) {
@@ -932,18 +963,12 @@
         delete (*ii).second;
     }
 }
-// WARN : Once freeLayouts() called, any layout ptrs in Region/Set data structure will be invalid
+// WARN : Once freeLayouts() called, any layout ptrs in Pool/Set data structure will be invalid
 // NOTE : Calls to this function should be wrapped in mutex
 static void freeLayouts()
 {
     for (unordered_map<XGL_DESCRIPTOR_SET_LAYOUT, LAYOUT_NODE*>::iterator ii=layoutMap.begin(); ii!=layoutMap.end(); ++ii) {
         LAYOUT_NODE* pLayout = (*ii).second;
-        GENERIC_HEADER* pTrav = (GENERIC_HEADER*)pLayout->pCreateInfoList;
-        while (pTrav) {
-            GENERIC_HEADER* pToFree = pTrav;
-            pTrav = (GENERIC_HEADER*)pTrav->pNext;
-            delete pToFree;
-        }
         if (pLayout->pTypes) {
             delete pLayout->pTypes;
         }
@@ -965,24 +990,23 @@
     }
 }
 
-static void clearDescriptorRegion(XGL_DESCRIPTOR_REGION region)
+static void clearDescriptorPool(XGL_DESCRIPTOR_POOL pool)
 {
-    REGION_NODE* pRegion = getRegionNode(region);
-    if (!pRegion) {
+    POOL_NODE* pPool = getPoolNode(pool);
+    if (!pPool) {
         char str[1024];
-        sprintf(str, "Unable to find region node for region %p specified in xglClearDescriptorRegion() call", (void*)region);
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, region, 0, DRAWSTATE_INVALID_REGION, "DS", str);
+        sprintf(str, "Unable to find pool node for pool %p specified in xglClearDescriptorPool() call", (void*)pool);
+        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, pool, 0, DRAWSTATE_INVALID_POOL, "DS", str);
     }
     else
     {
-        // For every set off of this region, clear it
-        SET_NODE* pSet = pRegion->pSets;
+        // For every set off of this pool, clear it
+        SET_NODE* pSet = pPool->pSets;
         while (pSet) {
             clearDescriptorSet(pSet->set);
         }
     }
 }
-
 // Code here to manage the Cmd buffer LL
 static GLOBAL_CB_NODE* getCBNode(XGL_CMD_BUFFER cb)
 {
@@ -1086,35 +1110,28 @@
 {
     SET_NODE* pSet = getSetNode(ds);
     if (pSet) {
-        REGION_NODE* pRegion = getRegionNode(pSet->region);
+        POOL_NODE* pPool = getPoolNode(pSet->pool);
         char tmp_str[4*1024];
-        fprintf(pOutFile, "subgraph cluster_DescriptorRegion\n{\nlabel=\"Descriptor Region\"\n");
-        sprintf(tmp_str, "Region (%p)", pRegion->region);
-        char* pGVstr = xgl_gv_print_xgl_descriptor_region_create_info(&pRegion->createInfo, tmp_str);
+        fprintf(pOutFile, "subgraph cluster_DescriptorPool\n{\nlabel=\"Descriptor Pool\"\n");
+        sprintf(tmp_str, "Pool (%p)", pPool->pool);
+        char* pGVstr = xgl_gv_print_xgl_descriptor_pool_create_info(&pPool->createInfo, tmp_str);
         fprintf(pOutFile, "%s", pGVstr);
         free(pGVstr);
         fprintf(pOutFile, "subgraph cluster_DescriptorSet\n{\nlabel=\"Descriptor Set (%p)\"\n", pSet->set);
         sprintf(tmp_str, "Descriptor Set (%p)", pSet->set);
-        LAYOUT_NODE* pLayout = pSet->pLayouts;
+        LAYOUT_NODE* pLayout = pSet->pLayout;
         uint32_t layout_index = 0;
-        while (pLayout) {
-            ++layout_index;
-            sprintf(tmp_str, "LAYOUT%u", layout_index);
-            pGVstr = xgl_gv_print_xgl_descriptor_set_layout_create_info(pLayout->pCreateInfoList, tmp_str);
-            fprintf(pOutFile, "%s", pGVstr);
-            free(pGVstr);
-            pLayout = pLayout->pPriorSetLayout;
-            if (pLayout) {
-                fprintf(pOutFile, "\"%s\" -> \"LAYOUT%u\" [];\n", tmp_str, layout_index+1);
-            }
-        }
+        ++layout_index;
+        sprintf(tmp_str, "LAYOUT%u", layout_index);
+        pGVstr = xgl_gv_print_xgl_descriptor_set_layout_create_info(&pLayout->createInfo, tmp_str);
+        fprintf(pOutFile, "%s", pGVstr);
+        free(pGVstr);
         if (pSet->pUpdateStructs) {
             pGVstr = dynamic_gv_display(pSet->pUpdateStructs, "Descriptor Updates");
             fprintf(pOutFile, "%s", pGVstr);
             free(pGVstr);
         }
         if (pSet->ppDescriptors) {
-            //void* pDesc = NULL;
             fprintf(pOutFile, "\"DESCRIPTORS\" [\nlabel=<<TABLE BORDER=\"0\" CELLBORDER=\"1\" CELLSPACING=\"0\"> <TR><TD COLSPAN=\"2\" PORT=\"desc\">DESCRIPTORS</TD></TR>");
             uint32_t i = 0;
             for (i=0; i < pSet->descriptorCount; i++) {
@@ -1150,7 +1167,7 @@
                     {
                         case XGL_STRUCTURE_TYPE_UPDATE_SAMPLERS:
                             pUS = (XGL_UPDATE_SAMPLERS*)pSet->ppDescriptors[i];
-                            pSCI = getSamplerCreateInfo(pUS->pSamplers[i-pUS->index]);
+                            pSCI = getSamplerCreateInfo(pUS->pSamplers[i-pUS->arrayIndex]);
                             if (pSCI) {
                                 sprintf(tmp_str, "SAMPLER%u", i);
                                 fprintf(pOutFile, "%s", xgl_gv_print_xgl_sampler_create_info(pSCI, tmp_str));
@@ -1159,13 +1176,13 @@
                             break;
                         case XGL_STRUCTURE_TYPE_UPDATE_SAMPLER_TEXTURES:
                             pUST = (XGL_UPDATE_SAMPLER_TEXTURES*)pSet->ppDescriptors[i];
-                            pSCI = getSamplerCreateInfo(pUST->pSamplerImageViews[i-pUST->index].pSampler);
+                            pSCI = getSamplerCreateInfo(pUST->pSamplerImageViews[i-pUST->arrayIndex].sampler);
                             if (pSCI) {
                                 sprintf(tmp_str, "SAMPLER%u", i);
                                 fprintf(pOutFile, "%s", xgl_gv_print_xgl_sampler_create_info(pSCI, tmp_str));
                                 fprintf(pOutFile, "\"DESCRIPTORS\":slot%u -> \"%s\" [color=\"#%s\"];\n", i, tmp_str, edgeColors[colorIdx].c_str());
                             }
-                            pIVCI = getImageViewCreateInfo(pUST->pSamplerImageViews[i-pUST->index].pImageView->view);
+                            pIVCI = getImageViewCreateInfo(pUST->pSamplerImageViews[i-pUST->arrayIndex].pImageView->view);
                             if (pIVCI) {
                                 sprintf(tmp_str, "IMAGE_VIEW%u", i);
                                 fprintf(pOutFile, "%s", xgl_gv_print_xgl_image_view_create_info(pIVCI, tmp_str));
@@ -1174,7 +1191,7 @@
                             break;
                         case XGL_STRUCTURE_TYPE_UPDATE_IMAGES:
                             pUI = (XGL_UPDATE_IMAGES*)pSet->ppDescriptors[i];
-                            pIVCI = getImageViewCreateInfo(pUI->pImageViews[i-pUI->index]->view);
+                            pIVCI = getImageViewCreateInfo(pUI->pImageViews[i-pUI->arrayIndex].view);
                             if (pIVCI) {
                                 sprintf(tmp_str, "IMAGE_VIEW%u", i);
                                 fprintf(pOutFile, "%s", xgl_gv_print_xgl_image_view_create_info(pIVCI, tmp_str));
@@ -1183,7 +1200,7 @@
                             break;
                         case XGL_STRUCTURE_TYPE_UPDATE_BUFFERS:
                             pUB = (XGL_UPDATE_BUFFERS*)pSet->ppDescriptors[i];
-                            pBVCI = getBufferViewCreateInfo(pUB->pBufferViews[i-pUB->index]->view);
+                            pBVCI = getBufferViewCreateInfo(pUB->pBufferViews[i-pUB->arrayIndex].view);
                             if (pBVCI) {
                                 sprintf(tmp_str, "BUFFER_VIEW%u", i);
                                 fprintf(pOutFile, "%s", xgl_gv_print_xgl_buffer_view_create_info(pBVCI, tmp_str));
@@ -1355,30 +1372,27 @@
     GLOBAL_CB_NODE* pCB = getCBNode(cb);
     if (pCB) {
         SET_NODE* pSet = getSetNode(pCB->lastBoundDescriptorSet);
-        REGION_NODE* pRegion = getRegionNode(pSet->region);
-        // Print out region details
-        sprintf(tmp_str, "Details for region %p.", (void*)pRegion->region);
+        POOL_NODE* pPool = getPoolNode(pSet->pool);
+        // Print out pool details
+        sprintf(tmp_str, "Details for pool %p.", (void*)pPool->pool);
         layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, NULL, 0, DRAWSTATE_NONE, "DS", tmp_str);
-        string regionStr = xgl_print_xgl_descriptor_region_create_info(&pRegion->createInfo, " ");
-        sprintf(ds_config_str, "%s", regionStr.c_str());
+        string poolStr = xgl_print_xgl_descriptor_pool_create_info(&pPool->createInfo, " ");
+        sprintf(ds_config_str, "%s", poolStr.c_str());
         layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, NULL, 0, DRAWSTATE_NONE, "DS", ds_config_str);
         // Print out set details
         char prefix[10];
         uint32_t index = 0;
         sprintf(tmp_str, "Details for descriptor set %p.", (void*)pSet->set);
         layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, NULL, 0, DRAWSTATE_NONE, "DS", tmp_str);
-        LAYOUT_NODE* pLayout = pSet->pLayouts;
-        while (pLayout) {
-            // Print layout details
-            sprintf(tmp_str, "Layout #%u, (object %p) for DS %p.", index+1, (void*)pLayout->layout, (void*)pSet->set);
-            layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, NULL, 0, DRAWSTATE_NONE, "DS", tmp_str);
-            sprintf(prefix, "  [L%u] ", index);
-            string DSLstr = xgl_print_xgl_descriptor_set_layout_create_info(&pLayout->pCreateInfoList[0], prefix).c_str();
-            sprintf(ds_config_str, "%s", DSLstr.c_str());
-            layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, NULL, 0, DRAWSTATE_NONE, "DS", ds_config_str);
-            pLayout = pLayout->pPriorSetLayout;
-            index++;
-        }
+        LAYOUT_NODE* pLayout = pSet->pLayout;
+        // Print layout details
+        sprintf(tmp_str, "Layout #%u, (object %p) for DS %p.", index+1, (void*)pLayout->layout, (void*)pSet->set);
+        layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, NULL, 0, DRAWSTATE_NONE, "DS", tmp_str);
+        sprintf(prefix, "  [L%u] ", index);
+        string DSLstr = xgl_print_xgl_descriptor_set_layout_create_info(&pLayout->createInfo, prefix).c_str();
+        sprintf(ds_config_str, "%s", DSLstr.c_str());
+        layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, NULL, 0, DRAWSTATE_NONE, "DS", ds_config_str);
+        index++;
         GENERIC_HEADER* pUpdate = pSet->pUpdateStructs;
         if (pUpdate) {
             sprintf(tmp_str, "Update Chain [UC] for descriptor set %p:", (void*)pSet->set);
@@ -1493,7 +1507,7 @@
     freeBuffers();
     freeCmdBuffers();
     freeDynamicState();
-    freeRegions();
+    freePools();
     freeLayouts();
     loader_platform_thread_unlock_mutex(&globalLock);
     XGL_RESULT result = nextTable.DestroyDevice(device);
@@ -1619,9 +1633,9 @@
     return result;
 }
 
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglCreateDescriptorSetLayout(XGL_DEVICE device, XGL_FLAGS stageFlags, const uint32_t* pSetBindPoints, XGL_DESCRIPTOR_SET_LAYOUT priorSetLayout, const XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO* pSetLayoutInfoList, XGL_DESCRIPTOR_SET_LAYOUT* pSetLayout)
+XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglCreateDescriptorSetLayout(XGL_DEVICE device, const XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO* pCreateInfo, XGL_DESCRIPTOR_SET_LAYOUT* pSetLayout)
 {
-    XGL_RESULT result = nextTable.CreateDescriptorSetLayout(device, stageFlags, pSetBindPoints, priorSetLayout, pSetLayoutInfoList, pSetLayout);
+    XGL_RESULT result = nextTable.CreateDescriptorSetLayout(device, pCreateInfo, pSetLayout);
     if (XGL_SUCCESS == result) {
         LAYOUT_NODE* pNewNode = new LAYOUT_NODE;
         if (NULL == pNewNode) {
@@ -1630,61 +1644,33 @@
             layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, *pSetLayout, 0, DRAWSTATE_OUT_OF_MEMORY, "DS", str);
         }
         memset(pNewNode, 0, sizeof(LAYOUT_NODE));
-        // TODO : API Currently missing a count here that we should multiply by struct size
-        pNewNode->pCreateInfoList = new XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
-        memset((void*)pNewNode->pCreateInfoList, 0, sizeof(XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO));
-        void* pCITrav = NULL;
+        memcpy((void*)&pNewNode->createInfo, pCreateInfo, sizeof(XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO));
+        pNewNode->createInfo.pBinding = new XGL_DESCRIPTOR_SET_LAYOUT_BINDING[pCreateInfo->count];
+        memcpy((void*)pNewNode->createInfo.pBinding, pCreateInfo->pBinding, sizeof(XGL_DESCRIPTOR_SET_LAYOUT_BINDING)*pCreateInfo->count);
         uint32_t totalCount = 0;
-        if (pSetLayoutInfoList) {
-            memcpy((void*)pNewNode->pCreateInfoList, pSetLayoutInfoList, sizeof(XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO));
-            pCITrav = (void*)pSetLayoutInfoList->pNext;
-            totalCount = pSetLayoutInfoList->count;
-        }
-        void** ppNext = (void**)&pNewNode->pCreateInfoList->pNext;
-        while (pCITrav) {
-            totalCount += ((XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO*)pCITrav)->count;
-            *ppNext = new XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
-            memcpy((void*)*ppNext, pCITrav, sizeof(XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO));
-            pCITrav = (void*)((XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO*)pCITrav)->pNext;
-            ppNext = (void**)&((XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO*)*ppNext)->pNext;
+        for (uint32_t i=0; i<pCreateInfo->count; i++) {
+            totalCount += pCreateInfo->pBinding[i].count;
+            if (pCreateInfo->pBinding[i].pImmutableSamplers) {
+                void** ppImmutableSamplers = (void**)&pNewNode->createInfo.pBinding[i].pImmutableSamplers;
+                *ppImmutableSamplers = malloc(sizeof(XGL_SAMPLER)*pCreateInfo->pBinding[i].count);
+                memcpy(*ppImmutableSamplers, pCreateInfo->pBinding[i].pImmutableSamplers, pCreateInfo->pBinding[i].count*sizeof(XGL_SAMPLER));
+            }
         }
         if (totalCount > 0) {
             pNewNode->pTypes = new XGL_DESCRIPTOR_TYPE[totalCount];
-            XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO* pLCI = (XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO*)pSetLayoutInfoList;
             uint32_t offset = 0;
-            uint32_t i = 0;
-            while (pLCI) {
-                for (i = 0; i < pLCI->count; i++) {
-                    pNewNode->pTypes[offset + i] = pLCI->descriptorType;
+            uint32_t j = 0;
+            for (uint32_t i=0; i<pCreateInfo->count; i++) {
+                for (j = 0; j < pCreateInfo->pBinding[i].count; j++) {
+                    pNewNode->pTypes[offset + j] = pCreateInfo->pBinding[i].descriptorType;
                 }
-                offset += i;
-                pLCI = (XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO*)pLCI->pNext;
+                offset += j;
             }
         }
         pNewNode->layout = *pSetLayout;
-        pNewNode->stageFlags = stageFlags;
-        uint32_t i = (XGL_SHADER_STAGE_FLAGS_ALL == stageFlags) ? 0 : XGL_SHADER_STAGE_COMPUTE;
-        for (uint32_t stage = XGL_SHADER_STAGE_FLAGS_COMPUTE_BIT; stage > 0; stage >>= 1) {
-            assert(i < XGL_NUM_SHADER_STAGE);
-            if (stage & stageFlags)
-                pNewNode->shaderStageBindPoints[i] = pSetBindPoints[i];
-            i = (i == 0) ? 0 : (i-1);
-        }
         pNewNode->startIndex = 0;
-        LAYOUT_NODE* pPriorNode = getLayoutNode(priorSetLayout);
-        // Point to prior node or NULL if no prior node
-        if (NULL != priorSetLayout && pPriorNode == NULL) {
-            char str[1024];
-            sprintf(str, "Invalid priorSetLayout of %p passed to xglCreateDescriptorSetLayout()", (void*)priorSetLayout);
-            layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, priorSetLayout, 0, DRAWSTATE_INVALID_LAYOUT, "DS", str);
-        }
-        else if (pPriorNode != NULL) { // We have a node for a valid prior layout
-            // Get count for prior layout
-            pNewNode->startIndex = pPriorNode->endIndex + 1;
-        }
         pNewNode->endIndex = pNewNode->startIndex + totalCount - 1;
         assert(pNewNode->endIndex >= pNewNode->startIndex);
-        pNewNode->pPriorSetLayout = pPriorNode;
         // Put new node at Head of global Layer list
         loader_platform_thread_lock_mutex(&globalLock);
         layoutMap[*pSetLayout] = pNewNode;
@@ -1693,115 +1679,124 @@
     return result;
 }
 
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglBeginDescriptorRegionUpdate(XGL_DEVICE device, XGL_DESCRIPTOR_UPDATE_MODE updateMode)
+XGL_RESULT XGLAPI xglCreateDescriptorSetLayoutChain(XGL_DEVICE device, uint32_t setLayoutArrayCount, const XGL_DESCRIPTOR_SET_LAYOUT* pSetLayoutArray, XGL_DESCRIPTOR_SET_LAYOUT_CHAIN* pLayoutChain)
 {
-    XGL_RESULT result = nextTable.BeginDescriptorRegionUpdate(device, updateMode);
+    XGL_RESULT result = nextTable.CreateDescriptorSetLayoutChain(device, setLayoutArrayCount, pSetLayoutArray, pLayoutChain);
+    if (XGL_SUCCESS == result) {
+        // TODO : Need to capture the layout chains
+    }
+    return result;
+}
+
+XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglBeginDescriptorPoolUpdate(XGL_DEVICE device, XGL_DESCRIPTOR_UPDATE_MODE updateMode)
+{
+    XGL_RESULT result = nextTable.BeginDescriptorPoolUpdate(device, updateMode);
     if (XGL_SUCCESS == result) {
         loader_platform_thread_lock_mutex(&globalLock);
-        REGION_NODE* pRegionNode = regionMap.begin()->second;
-        if (!pRegionNode) {
+        POOL_NODE* pPoolNode = poolMap.begin()->second;
+        if (!pPoolNode) {
             char str[1024];
-            sprintf(str, "Unable to find region node");
+            sprintf(str, "Unable to find pool node");
             layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, NULL, 0, DRAWSTATE_INTERNAL_ERROR, "DS", str);
         }
         else {
-            pRegionNode->updateActive = 1;
+            pPoolNode->updateActive = 1;
         }
         loader_platform_thread_unlock_mutex(&globalLock);
     }
     return result;
 }
 
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglEndDescriptorRegionUpdate(XGL_DEVICE device, XGL_CMD_BUFFER cmd)
+XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglEndDescriptorPoolUpdate(XGL_DEVICE device, XGL_CMD_BUFFER cmd)
 {
-    XGL_RESULT result = nextTable.EndDescriptorRegionUpdate(device, cmd);
+    XGL_RESULT result = nextTable.EndDescriptorPoolUpdate(device, cmd);
     if (XGL_SUCCESS == result) {
         loader_platform_thread_lock_mutex(&globalLock);
-        REGION_NODE* pRegionNode = regionMap.begin()->second;
-        if (!pRegionNode) {
+        POOL_NODE* pPoolNode = poolMap.begin()->second;
+        if (!pPoolNode) {
             char str[1024];
-            sprintf(str, "Unable to find region node");
+            sprintf(str, "Unable to find pool node");
             layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, NULL, 0, DRAWSTATE_INTERNAL_ERROR, "DS", str);
         }
         else {
-            if (!pRegionNode->updateActive) {
+            if (!pPoolNode->updateActive) {
                 char str[1024];
-                sprintf(str, "You must call xglBeginDescriptorRegionUpdate() before this call to xglEndDescriptorRegionUpdate()!");
+                sprintf(str, "You must call xglBeginDescriptorPoolUpdate() before this call to xglEndDescriptorPoolUpdate()!");
                 layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, NULL, 0, DRAWSTATE_DS_END_WITHOUT_BEGIN, "DS", str);
             }
             else {
-                pRegionNode->updateActive = 0;
+                pPoolNode->updateActive = 0;
             }
-            pRegionNode->updateActive = 0;
+            pPoolNode->updateActive = 0;
         }
         loader_platform_thread_unlock_mutex(&globalLock);
     }
     return result;
 }
 
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglCreateDescriptorRegion(XGL_DEVICE device, XGL_DESCRIPTOR_REGION_USAGE regionUsage, uint32_t maxSets, const XGL_DESCRIPTOR_REGION_CREATE_INFO* pCreateInfo, XGL_DESCRIPTOR_REGION* pDescriptorRegion)
+XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglCreateDescriptorPool(XGL_DEVICE device, XGL_DESCRIPTOR_POOL_USAGE poolUsage, uint32_t maxSets, const XGL_DESCRIPTOR_POOL_CREATE_INFO* pCreateInfo, XGL_DESCRIPTOR_POOL* pDescriptorPool)
 {
-    XGL_RESULT result = nextTable.CreateDescriptorRegion(device, regionUsage, maxSets, pCreateInfo, pDescriptorRegion);
+    XGL_RESULT result = nextTable.CreateDescriptorPool(device, poolUsage, maxSets, pCreateInfo, pDescriptorPool);
     if (XGL_SUCCESS == result) {
-        // Insert this region into Global Region LL at head
+        // Insert this pool into Global Pool LL at head
         char str[1024];
-        sprintf(str, "Created Descriptor Region %p", (void*)*pDescriptorRegion);
-        layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, (XGL_BASE_OBJECT)pDescriptorRegion, 0, DRAWSTATE_NONE, "DS", str);
+        sprintf(str, "Created Descriptor Pool %p", (void*)*pDescriptorPool);
+        layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, (XGL_BASE_OBJECT)pDescriptorPool, 0, DRAWSTATE_NONE, "DS", str);
         loader_platform_thread_lock_mutex(&globalLock);
-        REGION_NODE* pNewNode = new REGION_NODE;
+        POOL_NODE* pNewNode = new POOL_NODE;
         if (NULL == pNewNode) {
             char str[1024];
-            sprintf(str, "Out of memory while attempting to allocate REGION_NODE in xglCreateDescriptorRegion()");
-            layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, (XGL_BASE_OBJECT)*pDescriptorRegion, 0, DRAWSTATE_OUT_OF_MEMORY, "DS", str);
+            sprintf(str, "Out of memory while attempting to allocate POOL_NODE in xglCreateDescriptorPool()");
+            layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, (XGL_BASE_OBJECT)*pDescriptorPool, 0, DRAWSTATE_OUT_OF_MEMORY, "DS", str);
         }
         else {
-            memset(pNewNode, 0, sizeof(REGION_NODE));
-            XGL_DESCRIPTOR_REGION_CREATE_INFO* pCI = (XGL_DESCRIPTOR_REGION_CREATE_INFO*)&pNewNode->createInfo;
-            memcpy((void*)pCI, pCreateInfo, sizeof(XGL_DESCRIPTOR_REGION_CREATE_INFO));
+            memset(pNewNode, 0, sizeof(POOL_NODE));
+            XGL_DESCRIPTOR_POOL_CREATE_INFO* pCI = (XGL_DESCRIPTOR_POOL_CREATE_INFO*)&pNewNode->createInfo;
+            memcpy((void*)pCI, pCreateInfo, sizeof(XGL_DESCRIPTOR_POOL_CREATE_INFO));
             if (pNewNode->createInfo.count) {
                 size_t typeCountSize = pNewNode->createInfo.count * sizeof(XGL_DESCRIPTOR_TYPE_COUNT);
                 pNewNode->createInfo.pTypeCount = new XGL_DESCRIPTOR_TYPE_COUNT[typeCountSize];
                 memcpy((void*)pNewNode->createInfo.pTypeCount, pCreateInfo->pTypeCount, typeCountSize);
             }
-            pNewNode->regionUsage  = regionUsage;
+            pNewNode->poolUsage  = poolUsage;
             pNewNode->updateActive = 0;
             pNewNode->maxSets      = maxSets;
-            pNewNode->region       = *pDescriptorRegion;
-            regionMap[*pDescriptorRegion] = pNewNode;
+            pNewNode->pool       = *pDescriptorPool;
+            poolMap[*pDescriptorPool] = pNewNode;
         }
         loader_platform_thread_unlock_mutex(&globalLock);
     }
     else {
-        // Need to do anything if region create fails?
+        // Need to do anything if pool create fails?
     }
     return result;
 }
 
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglClearDescriptorRegion(XGL_DESCRIPTOR_REGION descriptorRegion)
+XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglResetDescriptorPool(XGL_DESCRIPTOR_POOL descriptorPool)
 {
-    XGL_RESULT result = nextTable.ClearDescriptorRegion(descriptorRegion);
+    XGL_RESULT result = nextTable.ResetDescriptorPool(descriptorPool);
     if (XGL_SUCCESS == result) {
-        clearDescriptorRegion(descriptorRegion);
+        clearDescriptorPool(descriptorPool);
     }
     return result;
 }
 
-XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglAllocDescriptorSets(XGL_DESCRIPTOR_REGION descriptorRegion, XGL_DESCRIPTOR_SET_USAGE setUsage, uint32_t count, const XGL_DESCRIPTOR_SET_LAYOUT* pSetLayouts, XGL_DESCRIPTOR_SET* pDescriptorSets, uint32_t* pCount)
+XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglAllocDescriptorSets(XGL_DESCRIPTOR_POOL descriptorPool, XGL_DESCRIPTOR_SET_USAGE setUsage, uint32_t count, const XGL_DESCRIPTOR_SET_LAYOUT* pSetLayouts, XGL_DESCRIPTOR_SET* pDescriptorSets, uint32_t* pCount)
 {
-    XGL_RESULT result = nextTable.AllocDescriptorSets(descriptorRegion, setUsage, count, pSetLayouts, pDescriptorSets, pCount);
+    XGL_RESULT result = nextTable.AllocDescriptorSets(descriptorPool, setUsage, count, pSetLayouts, pDescriptorSets, pCount);
     if ((XGL_SUCCESS == result) || (*pCount > 0)) {
-        REGION_NODE *pRegionNode = getRegionNode(descriptorRegion);
-        if (!pRegionNode) {
+        POOL_NODE *pPoolNode = getPoolNode(descriptorPool);
+        if (!pPoolNode) {
             char str[1024];
-            sprintf(str, "Unable to find region node for region %p specified in xglAllocDescriptorSets() call", (void*)descriptorRegion);
-            layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, descriptorRegion, 0, DRAWSTATE_INVALID_REGION, "DS", str);
+            sprintf(str, "Unable to find pool node for pool %p specified in xglAllocDescriptorSets() call", (void*)descriptorPool);
+            layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, descriptorPool, 0, DRAWSTATE_INVALID_POOL, "DS", str);
         }
         else {
             for (uint32_t i = 0; i < *pCount; i++) {
                 char str[1024];
                 sprintf(str, "Created Descriptor Set %p", (void*)pDescriptorSets[i]);
                 layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, pDescriptorSets[i], 0, DRAWSTATE_NONE, "DS", str);
-                // Create new set node and add to head of region nodes
+                // Create new set node and add to head of pool nodes
                 SET_NODE* pNewNode = new SET_NODE;
                 if (NULL == pNewNode) {
                     char str[1024];
@@ -1810,17 +1805,17 @@
                 }
                 else {
                     memset(pNewNode, 0, sizeof(SET_NODE));
-                    // Insert set at head of Set LL for this region
-                    pNewNode->pNext = pRegionNode->pSets;
-                    pRegionNode->pSets = pNewNode;
+                    // Insert set at head of Set LL for this pool
+                    pNewNode->pNext = pPoolNode->pSets;
+                    pPoolNode->pSets = pNewNode;
                     LAYOUT_NODE* pLayout = getLayoutNode(pSetLayouts[i]);
                     if (NULL == pLayout) {
                         char str[1024];
                         sprintf(str, "Unable to find set layout node for layout %p specified in xglAllocDescriptorSets() call", (void*)pSetLayouts[i]);
                         layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, pSetLayouts[i], 0, DRAWSTATE_INVALID_LAYOUT, "DS", str);
                     }
-                    pNewNode->pLayouts = pLayout;
-                    pNewNode->region = descriptorRegion;
+                    pNewNode->pLayout = pLayout;
+                    pNewNode->pool = descriptorPool;
                     pNewNode->set = pDescriptorSets[i];
                     pNewNode->setUsage = setUsage;
                     pNewNode->descriptorCount = pLayout->endIndex + 1;
@@ -1837,28 +1832,28 @@
     return result;
 }
 
-XGL_LAYER_EXPORT void XGLAPI xglClearDescriptorSets(XGL_DESCRIPTOR_REGION descriptorRegion, uint32_t count, const XGL_DESCRIPTOR_SET* pDescriptorSets)
+XGL_LAYER_EXPORT void XGLAPI xglClearDescriptorSets(XGL_DESCRIPTOR_POOL descriptorPool, uint32_t count, const XGL_DESCRIPTOR_SET* pDescriptorSets)
 {
     for (uint32_t i = 0; i < count; i++) {
         clearDescriptorSet(pDescriptorSets[i]);
     }
-    nextTable.ClearDescriptorSets(descriptorRegion, count, pDescriptorSets);
+    nextTable.ClearDescriptorSets(descriptorPool, count, pDescriptorSets);
 }
 
-XGL_LAYER_EXPORT void XGLAPI xglUpdateDescriptors(XGL_DESCRIPTOR_SET descriptorSet, const void* pUpdateChain)
+XGL_LAYER_EXPORT void XGLAPI xglUpdateDescriptors(XGL_DESCRIPTOR_SET descriptorSet, uint32_t updateCount, const void** ppUpdateArray)
 {
     SET_NODE* pSet = getSetNode(descriptorSet);
     if (!dsUpdateActive(descriptorSet)) {
         char str[1024];
-        sprintf(str, "You must call xglBeginDescriptorRegionUpdate() before this call to xglUpdateDescriptors()!");
-        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, pSet->region, 0, DRAWSTATE_UPDATE_WITHOUT_BEGIN, "DS", str);
+        sprintf(str, "You must call xglBeginDescriptorPoolUpdate() before this call to xglUpdateDescriptors()!");
+        layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, pSet->pool, 0, DRAWSTATE_UPDATE_WITHOUT_BEGIN, "DS", str);
     }
     else {
         // pUpdateChain is a Linked-list of XGL_UPDATE_* structures defining the mappings for the descriptors
-        dsUpdate(descriptorSet, (GENERIC_HEADER*)pUpdateChain);
+        dsUpdate(descriptorSet, updateCount, ppUpdateArray);
     }
 
-    nextTable.UpdateDescriptors(descriptorSet, pUpdateChain);
+    nextTable.UpdateDescriptors(descriptorSet, updateCount, ppUpdateArray);
 }
 
 XGL_LAYER_EXPORT XGL_RESULT XGLAPI xglCreateDynamicViewportState(XGL_DEVICE device, const XGL_DYNAMIC_VP_STATE_CREATE_INFO* pCreateInfo, XGL_DYNAMIC_VP_STATE_OBJECT* pState)
@@ -1997,34 +1992,36 @@
     nextTable.CmdBindDynamicStateObject(cmdBuffer, stateBindPoint, state);
 }
 
-XGL_LAYER_EXPORT void XGLAPI xglCmdBindDescriptorSet(XGL_CMD_BUFFER cmdBuffer, XGL_PIPELINE_BIND_POINT pipelineBindPoint, XGL_DESCRIPTOR_SET descriptorSet, const uint32_t* pUserData)
+XGL_LAYER_EXPORT void XGLAPI xglCmdBindDescriptorSets(XGL_CMD_BUFFER cmdBuffer, XGL_PIPELINE_BIND_POINT pipelineBindPoint, XGL_DESCRIPTOR_SET_LAYOUT_CHAIN layoutChain, uint32_t layoutChainSlot, uint32_t count, const XGL_DESCRIPTOR_SET* pDescriptorSets, const uint32_t* pUserData)
 {
     GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
     if (pCB) {
         updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_BINDDESCRIPTORSET);
-        if (getSetNode(descriptorSet)) {
-            if (dsUpdateActive(descriptorSet)) {
-                // TODO : This check here needs to be made at QueueSubmit time
-/*
+        addCmd(pCB, CMD_BINDDESCRIPTORSETS);
+        for (uint32_t i=0; i<count; i++) {
+            if (getSetNode(pDescriptorSets[i])) {
+                if (dsUpdateActive(pDescriptorSets[i])) {
+                    // TODO : This check here needs to be made at QueueSubmit time
+    /*
+                    char str[1024];
+                    sprintf(str, "You must call xglEndDescriptorPoolUpdate(%p) before this call to xglCmdBindDescriptorSet()!", (void*)descriptorSet);
+                    layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, descriptorSet, 0, DRAWSTATE_BINDING_DS_NO_END_UPDATE, "DS", str);
+    */
+                }
+                loader_platform_thread_lock_mutex(&globalLock);
+                pCB->lastBoundDescriptorSet = pDescriptorSets[i];
+                g_lastBoundDescriptorSet = pDescriptorSets[i];
+                loader_platform_thread_unlock_mutex(&globalLock);
                 char str[1024];
-                sprintf(str, "You must call xglEndDescriptorRegionUpdate(%p) before this call to xglCmdBindDescriptorSet()!", (void*)descriptorSet);
-                layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, descriptorSet, 0, DRAWSTATE_BINDING_DS_NO_END_UPDATE, "DS", str);
-*/
+                sprintf(str, "DS %p bound on pipeline %s", (void*)pDescriptorSets[i], string_XGL_PIPELINE_BIND_POINT(pipelineBindPoint));
+                layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, pDescriptorSets[i], 0, DRAWSTATE_NONE, "DS", str);
+                synchAndPrintDSConfig(cmdBuffer);
             }
-            loader_platform_thread_lock_mutex(&globalLock);
-            pCB->lastBoundDescriptorSet = descriptorSet;
-            g_lastBoundDescriptorSet = descriptorSet;
-            loader_platform_thread_unlock_mutex(&globalLock);
-            char str[1024];
-            sprintf(str, "DS %p bound on pipeline %s", (void*)descriptorSet, string_XGL_PIPELINE_BIND_POINT(pipelineBindPoint));
-            layerCbMsg(XGL_DBG_MSG_UNKNOWN, XGL_VALIDATION_LEVEL_0, descriptorSet, 0, DRAWSTATE_NONE, "DS", str);
-            synchAndPrintDSConfig(cmdBuffer);
-        }
-        else {
-            char str[1024];
-            sprintf(str, "Attempt to bind DS %p that doesn't exist!", (void*)descriptorSet);
-            layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, descriptorSet, 0, DRAWSTATE_INVALID_SET, "DS", str);
+            else {
+                char str[1024];
+                sprintf(str, "Attempt to bind DS %p that doesn't exist!", (void*)pDescriptorSets[i]);
+                layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, pDescriptorSets[i], 0, DRAWSTATE_INVALID_SET, "DS", str);
+            }
         }
     }
     else {
@@ -2032,7 +2029,7 @@
         sprintf(str, "Attempt to use CmdBuffer %p that doesn't exist!", (void*)cmdBuffer);
         layerCbMsg(XGL_DBG_MSG_ERROR, XGL_VALIDATION_LEVEL_0, cmdBuffer, 0, DRAWSTATE_INVALID_CMD_BUFFER, "DS", str);
     }
-    nextTable.CmdBindDescriptorSet(cmdBuffer, pipelineBindPoint, descriptorSet, pUserData);
+    nextTable.CmdBindDescriptorSets(cmdBuffer, pipelineBindPoint, layoutChain, layoutChainSlot, count, pDescriptorSets, pUserData);
 }
 
 XGL_LAYER_EXPORT void XGLAPI xglCmdBindIndexBuffer(XGL_CMD_BUFFER cmdBuffer, XGL_BUFFER buffer, XGL_GPU_SIZE offset, XGL_INDEX_TYPE indexType)
@@ -2220,7 +2217,7 @@
     GLOBAL_CB_NODE* pCB = getCBNode(cmdBuffer);
     if (pCB) {
         updateCBTracking(cmdBuffer);
-        addCmd(pCB, CMD_COPYIMAGE);
+        addCmd(pCB, CMD_BLITIMAGE);
     }
     else {
         char str[1024];
@@ -2760,14 +2757,16 @@
         return (void*) xglCreateSampler;
     if (!strcmp(funcName, "xglCreateDescriptorSetLayout"))
         return (void*) xglCreateDescriptorSetLayout;
-    if (!strcmp(funcName, "xglBeginDescriptorRegionUpdate"))
-        return (void*) xglBeginDescriptorRegionUpdate;
-    if (!strcmp(funcName, "xglEndDescriptorRegionUpdate"))
-        return (void*) xglEndDescriptorRegionUpdate;
-    if (!strcmp(funcName, "xglCreateDescriptorRegion"))
-        return (void*) xglCreateDescriptorRegion;
-    if (!strcmp(funcName, "xglClearDescriptorRegion"))
-        return (void*) xglClearDescriptorRegion;
+    if (!strcmp(funcName, "xglCreateDescriptorSetLayoutChain"))
+        return (void*) xglCreateDescriptorSetLayoutChain;
+    if (!strcmp(funcName, "xglBeginDescriptorPoolUpdate"))
+        return (void*) xglBeginDescriptorPoolUpdate;
+    if (!strcmp(funcName, "xglEndDescriptorPoolUpdate"))
+        return (void*) xglEndDescriptorPoolUpdate;
+    if (!strcmp(funcName, "xglCreateDescriptorPool"))
+        return (void*) xglCreateDescriptorPool;
+    if (!strcmp(funcName, "xglResetDescriptorPool"))
+        return (void*) xglResetDescriptorPool;
     if (!strcmp(funcName, "xglAllocDescriptorSets"))
         return (void*) xglAllocDescriptorSets;
     if (!strcmp(funcName, "xglClearDescriptorSets"))
@@ -2794,8 +2793,8 @@
         return (void*) xglCmdBindPipeline;
     if (!strcmp(funcName, "xglCmdBindDynamicStateObject"))
         return (void*) xglCmdBindDynamicStateObject;
-    if (!strcmp(funcName, "xglCmdBindDescriptorSet"))
-        return (void*) xglCmdBindDescriptorSet;
+    if (!strcmp(funcName, "xglCmdBindDescriptorSets"))
+        return (void*) xglCmdBindDescriptorSets;
     if (!strcmp(funcName, "xglCmdBindVertexBuffer"))
         return (void*) xglCmdBindVertexBuffer;
     if (!strcmp(funcName, "xglCmdBindIndexBuffer"))
diff --git a/layers/draw_state.h b/layers/draw_state.h
index 0fb771e..d2d7650 100644
--- a/layers/draw_state.h
+++ b/layers/draw_state.h
@@ -32,18 +32,18 @@
     DRAWSTATE_NONE,                             // Used for INFO & other non-error messages
     DRAWSTATE_INTERNAL_ERROR,                   // Error with DrawState internal data structures
     DRAWSTATE_NO_PIPELINE_BOUND,                // Unable to identify a bound pipeline
-    DRAWSTATE_INVALID_REGION,                   // Invalid DS region
+    DRAWSTATE_INVALID_POOL,                     // Invalid DS pool
     DRAWSTATE_INVALID_SET,                      // Invalid DS
     DRAWSTATE_INVALID_LAYOUT,                   // Invalid DS layout
     DRAWSTATE_DS_END_WITHOUT_BEGIN,             // EndDSUpdate called w/o corresponding BeginDSUpdate
-    DRAWSTATE_UPDATE_WITHOUT_BEGIN,             // Attempt to update descriptors w/o calling BeginDescriptorRegionUpdate
+    DRAWSTATE_UPDATE_WITHOUT_BEGIN,             // Attempt to update descriptors w/o calling BeginDescriptorPoolUpdate
     DRAWSTATE_INVALID_PIPELINE,                 // Invalid Pipeline referenced
     DRAWSTATE_INVALID_CMD_BUFFER,               // Invalid CmdBuffer referenced
     DRAWSTATE_VTX_INDEX_OUT_OF_BOUNDS,          // binding in xglCmdBindVertexData() too large for PSO's pVertexBindingDescriptions array
     DRAWSTATE_INVALID_DYNAMIC_STATE_OBJECT,     // Invalid dyn state object
     DRAWSTATE_MISSING_DOT_PROGRAM,              // No "dot" program in order to generate png image
     DRAWSTATE_BINDING_DS_NO_END_UPDATE,         // DS bound to CmdBuffer w/o call to xglEndDescriptorSetUpdate())
-    DRAWSTATE_NO_DS_REGION,                     // No DS Region is available
+    DRAWSTATE_NO_DS_POOL,                       // No DS Pool is available
     DRAWSTATE_OUT_OF_MEMORY,                    // malloc failed
     DRAWSTATE_DESCRIPTOR_TYPE_MISMATCH,         // Type in layout vs. update are not the same
     DRAWSTATE_DESCRIPTOR_UPDATE_OUT_OF_BOUNDS,  // Descriptors set for update out of bounds for corresponding layout section
@@ -129,41 +129,37 @@
         XGL_DYNAMIC_CB_STATE_CREATE_INFO cbci;
         XGL_DYNAMIC_DS_STATE_CREATE_INFO dsci;
     } create_info;
-    //struct _DYNAMIC_STATE_NODE* pNext;
 } DYNAMIC_STATE_NODE;
 // Descriptor Data structures
 // Layout Node has the core layout data
 typedef struct _LAYOUT_NODE {
     XGL_DESCRIPTOR_SET_LAYOUT                    layout;
-    XGL_FLAGS                                    stageFlags;
-    uint32_t                                     shaderStageBindPoints[XGL_NUM_SHADER_STAGE];
     XGL_DESCRIPTOR_TYPE*                         pTypes; // Dynamic array that will be created to verify descriptor types
-    XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO*       pCreateInfoList;
+    XGL_DESCRIPTOR_SET_LAYOUT_CREATE_INFO        createInfo;
     uint32_t                                     startIndex; // 1st index of this layout
     uint32_t                                     endIndex; // last index of this layout
-    struct _LAYOUT_NODE*                         pPriorSetLayout; // Points to node w/ priorSetLayout
 } LAYOUT_NODE;
 typedef struct _SET_NODE {
     XGL_DESCRIPTOR_SET                           set;
-    XGL_DESCRIPTOR_REGION                        region;
+    XGL_DESCRIPTOR_POOL                          pool;
     XGL_DESCRIPTOR_SET_USAGE                     setUsage;
     // Head of LL of all Update structs for this set
     GENERIC_HEADER*                              pUpdateStructs;
     // Total num of descriptors in this set (count of its layout plus all prior layouts)
     uint32_t                                     descriptorCount;
     GENERIC_HEADER**                             ppDescriptors; // Array where each index points to update node for its slot
-    LAYOUT_NODE*                                 pLayouts;
+    LAYOUT_NODE*                                 pLayout; // Layout for this set
     struct _SET_NODE*                            pNext;
 } SET_NODE;
 
-typedef struct _REGION_NODE {
-    XGL_DESCRIPTOR_REGION                        region;
-    XGL_DESCRIPTOR_REGION_USAGE                  regionUsage;
+typedef struct _POOL_NODE {
+    XGL_DESCRIPTOR_POOL                          pool;
+    XGL_DESCRIPTOR_POOL_USAGE                    poolUsage;
     uint32_t                                     maxSets;
-    XGL_DESCRIPTOR_REGION_CREATE_INFO            createInfo;
-    bool32_t                                     updateActive; // Track if Region is in an update block
-    SET_NODE*                                    pSets; // Head of LL of sets for this Region
-} REGION_NODE;
+    XGL_DESCRIPTOR_POOL_CREATE_INFO              createInfo;
+    bool32_t                                     updateActive; // Track if Pool is in an update block
+    SET_NODE*                                    pSets; // Head of LL of sets for this Pool
+} POOL_NODE;
 
 // Cmd Buffer Tracking
 typedef enum _CMD_TYPE
@@ -171,7 +167,7 @@
     CMD_BINDPIPELINE,
     CMD_BINDPIPELINEDELTA,
     CMD_BINDDYNAMICSTATEOBJECT,
-    CMD_BINDDESCRIPTORSET,
+    CMD_BINDDESCRIPTORSETS,
     CMD_BINDINDEXBUFFER,
     CMD_BINDVERTEXBUFFER,
     CMD_DRAW,
@@ -182,6 +178,7 @@
     CMD_DISPATCHINDIRECT,
     CMD_COPYBUFFER,
     CMD_COPYIMAGE,
+    CMD_BLITIMAGE,
     CMD_COPYBUFFERTOIMAGE,
     CMD_COPYIMAGETOBUFFER,
     CMD_CLONEIMAGEDATA,
@@ -222,7 +219,7 @@
 // Cmd Buffer Wrapper Struct
 typedef struct _GLOBAL_CB_NODE {
     XGL_CMD_BUFFER                  cmdBuffer;
-    uint32_t	                    queueNodeIndex;
+    uint32_t                        queueNodeIndex;
     XGL_FLAGS                       flags;
     XGL_FENCE                       fence;    // fence tracking this cmd buffer
     uint64_t                        numCmds;  // number of cmds in this CB
diff --git a/xgl_helper.py b/xgl_helper.py
index 397d43c..701d9b4 100755
--- a/xgl_helper.py
+++ b/xgl_helper.py
@@ -757,8 +757,10 @@
                         if not idx_ss_decl:
                             sh_funcs.append('%sstringstream index_ss;' % (indent))
                             idx_ss_decl = True
+                        sh_funcs.append('%sif (pStruct->%s) {' % (indent, stp_list[index]['name']))
+                        indent += '    '
                         sh_funcs.append('%sfor (uint32_t i = 0; i < %s; i++) {' % (indent, array_count))
-                        indent = '        '
+                        indent += '    '
                         sh_funcs.append('%sindex_ss.str("");' % (indent))
                         sh_funcs.append('%sindex_ss << i;' % (indent))
                         if not is_type(stp_list[index]['type'], 'struct'):
@@ -772,8 +774,10 @@
                                 sh_funcs.append('%sstp_strs[%u] += " " + prefix + "%s[" + index_ss.str() + "] (addr)\\n" + tmp_str;' % (indent, index, stp_list[index]['name']))
                             else:
                                 sh_funcs.append('%sstp_strs[%u] += " " + prefix + "%s[" + index_ss.str() + "] (" + ss[%u].str() + ")\\n" + tmp_str;' % (indent, index, stp_list[index]['name'], index))
+                        indent = indent[4:]
+                        sh_funcs.append('%s}' % (indent))
                         sh_funcs.append('%sss[%u].str("");' % (indent, index))
-                        indent = '    '
+                        indent = indent[4:]
                         sh_funcs.append('%s}' % (indent))
                     elif (stp_list[index]['ptr']):
                         sh_funcs.append('    if (pStruct->%s) {' % stp_list[index]['name'])
@@ -1414,7 +1418,7 @@
                             gv_funcs.append('        free(tmpStr);\n')
                         else:
                             gv_funcs.append('        sprintf(nodeName, "%s_%%p", (void*)pStruct->%s);\n' % (stp_list[index]['name'], stp_list[index]['name']))
-                            if stp_list[index]['name'] in ['pTypeCount', 'pBufferViews', 'pImageViews', 'pSamplerImageViews']:
+                            if stp_list[index]['name'] in ['pTypeCount', 'pSamplerImageViews']:
                                 gv_funcs.append('        tmpStr = %s_array(pStruct->count, pStruct->%s, nodeName);\n' % (self._get_gv_func_name(stp_list[index]['type']), stp_list[index]['name']))
                             else:
                                 gv_funcs.append('        tmpStr = %s(pStruct->%s, nodeName);\n' % (self._get_gv_func_name(stp_list[index]['type']), stp_list[index]['name']))