| /* |
| * Copyright (c) 2011-2012, Code Aurora Forum. All rights reserved. |
| |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * * Neither the name of Code Aurora Forum, Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include <cutils/log.h> |
| #include <fcntl.h> |
| #include "gralloc_priv.h" |
| #include "alloc_controller.h" |
| #include "memalloc.h" |
| #include "ionalloc.h" |
| #include "gr.h" |
| #include "comptype.h" |
| |
| using namespace gralloc; |
| using namespace qdutils; |
| |
| //Common functions |
| static bool canFallback(int usage, bool triedSystem) |
| { |
| // Fallback to system heap when alloc fails unless |
| // 1. Composition type is MDP |
| // 2. Alloc from system heap was already tried |
| // 3. The heap type is requsted explicitly |
| // 4. The heap type is protected |
| // 5. The buffer is meant for external display only |
| |
| if(QCCompositionType::getInstance().getCompositionType() & |
| COMPOSITION_TYPE_MDP) |
| return false; |
| if(triedSystem) |
| return false; |
| if(usage & (GRALLOC_HEAP_MASK | GRALLOC_USAGE_PROTECTED | |
| GRALLOC_USAGE_PRIVATE_CP_BUFFER)) |
| return false; |
| if(usage & (GRALLOC_HEAP_MASK | GRALLOC_USAGE_PRIVATE_EXTERNAL_ONLY)) |
| return false; |
| //Return true by default |
| return true; |
| } |
| |
| static bool useUncached(int usage) |
| { |
| // System heaps cannot be uncached |
| if(usage & (GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP | |
| GRALLOC_USAGE_PRIVATE_IOMMU_HEAP)) |
| return false; |
| if (usage & GRALLOC_USAGE_PRIVATE_UNCACHED) |
| return true; |
| return false; |
| } |
| |
| IAllocController* IAllocController::sController = NULL; |
| IAllocController* IAllocController::getInstance(void) |
| { |
| if(sController == NULL) { |
| sController = new IonController(); |
| } |
| return sController; |
| } |
| |
| |
| //-------------- IonController-----------------------// |
| IonController::IonController() |
| { |
| mIonAlloc = new IonAlloc(); |
| } |
| |
| int IonController::allocate(alloc_data& data, int usage) |
| { |
| int ionFlags = 0; |
| int ret; |
| bool noncontig = false; |
| |
| data.uncached = useUncached(usage); |
| data.allocType = 0; |
| |
| if(usage & GRALLOC_USAGE_PRIVATE_UI_CONTIG_HEAP) |
| ionFlags |= ION_HEAP(ION_SF_HEAP_ID); |
| |
| if(usage & GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP) { |
| ionFlags |= ION_HEAP(ION_SYSTEM_HEAP_ID); |
| noncontig = true; |
| } |
| |
| if(usage & GRALLOC_USAGE_PRIVATE_IOMMU_HEAP) |
| ionFlags |= ION_HEAP(ION_IOMMU_HEAP_ID); |
| |
| if(usage & GRALLOC_USAGE_PRIVATE_MM_HEAP) |
| ionFlags |= ION_HEAP(ION_CP_MM_HEAP_ID); |
| |
| if(usage & GRALLOC_USAGE_PRIVATE_CAMERA_HEAP) |
| ionFlags |= ION_HEAP(ION_CAMERA_HEAP_ID); |
| |
| if(usage & GRALLOC_USAGE_PRIVATE_CP_BUFFER) |
| ionFlags |= ION_SECURE; |
| |
| // if no flags are set, default to |
| // SF + IOMMU heaps, so that bypass can work |
| // we can fall back to system heap if |
| // we run out. |
| if(!ionFlags) |
| ionFlags = ION_HEAP(ION_SF_HEAP_ID) | ION_HEAP(ION_IOMMU_HEAP_ID); |
| |
| data.flags = ionFlags; |
| ret = mIonAlloc->alloc_buffer(data); |
| |
| // Fallback |
| if(ret < 0 && canFallback(usage, |
| (ionFlags & ION_SYSTEM_HEAP_ID))) |
| { |
| ALOGW("Falling back to system heap"); |
| data.flags = ION_HEAP(ION_SYSTEM_HEAP_ID); |
| noncontig = true; |
| ret = mIonAlloc->alloc_buffer(data); |
| } |
| |
| if(ret >= 0 ) { |
| data.allocType |= private_handle_t::PRIV_FLAGS_USES_ION; |
| if(noncontig) |
| data.allocType |= private_handle_t::PRIV_FLAGS_NONCONTIGUOUS_MEM; |
| if(ionFlags & ION_SECURE) |
| data.allocType |= private_handle_t::PRIV_FLAGS_SECURE_BUFFER; |
| } |
| |
| return ret; |
| } |
| |
| IMemAlloc* IonController::getAllocator(int flags) |
| { |
| IMemAlloc* memalloc = NULL; |
| if (flags & private_handle_t::PRIV_FLAGS_USES_ION) { |
| memalloc = mIonAlloc; |
| } else { |
| ALOGE("%s: Invalid flags passed: 0x%x", __FUNCTION__, flags); |
| } |
| |
| return memalloc; |
| } |
| |
| size_t getBufferSizeAndDimensions(int width, int height, int format, |
| int& alignedw, int &alignedh) |
| { |
| size_t size; |
| |
| alignedw = ALIGN(width, 32); |
| alignedh = ALIGN(height, 32); |
| switch (format) { |
| case HAL_PIXEL_FORMAT_RGBA_8888: |
| case HAL_PIXEL_FORMAT_RGBX_8888: |
| case HAL_PIXEL_FORMAT_BGRA_8888: |
| size = alignedw * alignedh * 4; |
| break; |
| case HAL_PIXEL_FORMAT_RGB_888: |
| size = alignedw * alignedh * 3; |
| break; |
| case HAL_PIXEL_FORMAT_RGB_565: |
| case HAL_PIXEL_FORMAT_RGBA_5551: |
| case HAL_PIXEL_FORMAT_RGBA_4444: |
| size = alignedw * alignedh * 2; |
| break; |
| |
| // adreno formats |
| case HAL_PIXEL_FORMAT_YCrCb_420_SP_ADRENO: // NV21 |
| size = ALIGN(alignedw*alignedh, 4096); |
| size += ALIGN(2 * ALIGN(width/2, 32) * ALIGN(height/2, 32), 4096); |
| break; |
| case HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED: // NV12 |
| // The chroma plane is subsampled, |
| // but the pitch in bytes is unchanged |
| // The GPU needs 4K alignment, but the video decoder needs 8K |
| alignedw = ALIGN(width, 128); |
| size = ALIGN( alignedw * alignedh, 8192); |
| size += ALIGN( alignedw * ALIGN(height/2, 32), 8192); |
| break; |
| case HAL_PIXEL_FORMAT_NV12_ENCODEABLE: |
| case HAL_PIXEL_FORMAT_YCbCr_420_SP: |
| case HAL_PIXEL_FORMAT_YCrCb_420_SP: |
| case HAL_PIXEL_FORMAT_YV12: |
| if ((format == HAL_PIXEL_FORMAT_YV12) && ((width&1) || (height&1))) { |
| ALOGE("w or h is odd for the YV12 format"); |
| return -EINVAL; |
| } |
| alignedw = ALIGN(width, 16); |
| alignedh = height; |
| if (HAL_PIXEL_FORMAT_NV12_ENCODEABLE == format) { |
| // The encoder requires a 2K aligned chroma offset. |
| size = ALIGN(alignedw*alignedh, 2048) + |
| (ALIGN(alignedw/2, 16) * (alignedh/2))*2; |
| } else { |
| size = alignedw*alignedh + |
| (ALIGN(alignedw/2, 16) * (alignedh/2))*2; |
| } |
| size = ALIGN(size, 4096); |
| break; |
| case HAL_PIXEL_FORMAT_YCbCr_422_SP: |
| case HAL_PIXEL_FORMAT_YCrCb_422_SP: |
| if(width & 1) { |
| ALOGE("width is odd for the YUV422_SP format"); |
| return -EINVAL; |
| } |
| alignedw = ALIGN(width, 16); |
| alignedh = height; |
| size = ALIGN(alignedw * alignedh * 2, 4096); |
| break; |
| default: |
| ALOGE("unrecognized pixel format: 0x%x", format); |
| return -EINVAL; |
| } |
| |
| return size; |
| } |
| |
| // Allocate buffer from width, height and format into a |
| // private_handle_t. It is the responsibility of the caller |
| // to free the buffer using the free_buffer function |
| int alloc_buffer(private_handle_t **pHnd, int w, int h, int format, int usage) |
| { |
| alloc_data data; |
| int alignedw, alignedh; |
| gralloc::IAllocController* sAlloc = |
| gralloc::IAllocController::getInstance(); |
| data.base = 0; |
| data.fd = -1; |
| data.offset = 0; |
| data.size = getBufferSizeAndDimensions(w, h, format, alignedw, alignedh); |
| data.align = getpagesize(); |
| data.uncached = useUncached(usage); |
| int allocFlags = usage; |
| |
| int err = sAlloc->allocate(data, allocFlags); |
| if (0 != err) { |
| ALOGE("%s: allocate failed", __FUNCTION__); |
| return -ENOMEM; |
| } |
| |
| private_handle_t* hnd = new private_handle_t(data.fd, data.size, |
| data.allocType, 0, format, |
| alignedw, alignedh); |
| hnd->base = (int) data.base; |
| hnd->offset = data.offset; |
| hnd->gpuaddr = 0; |
| *pHnd = hnd; |
| return 0; |
| } |
| |
| void free_buffer(private_handle_t *hnd) |
| { |
| gralloc::IAllocController* sAlloc = |
| gralloc::IAllocController::getInstance(); |
| if (hnd && hnd->fd > 0) { |
| IMemAlloc* memalloc = sAlloc->getAllocator(hnd->flags); |
| memalloc->free_buffer((void*)hnd->base, hnd->size, hnd->offset, hnd->fd); |
| } |
| if(hnd) |
| delete hnd; |
| |
| } |