icd/intel/img.c

/*
 * Vulkan
 *
 * 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.
 *
 * Authors:
 *   Chia-I Wu <olv@lunarg.com>
 */

#include "kmd/winsys.h"
#include "dev.h"
#include "gpu.h"
#include "wsi.h"
#include "img.h"

/*
 * From the Ivy Bridge PRM, volume 1 part 1, page 105:
 *
 *     "In addition to restrictions on maximum height, width, and depth,
 *      surfaces are also restricted to a maximum size in bytes. This
 *      maximum is 2 GB for all products and all surface types."
 */
static const size_t intel_max_resource_size = 1u << 31;

static void img_destroy(struct intel_obj *obj)
{
    struct intel_img *img = intel_img_from_obj(obj);

    intel_img_destroy(img);
}

static VkResult img_get_info(struct intel_base *base, int type,
                               size_t *size, void *data)
{
    struct intel_img *img = intel_img_from_base(base);
    VkResult ret = VK_SUCCESS;

    switch (type) {
    case VK_INFO_TYPE_MEMORY_REQUIREMENTS:
        {
            VkMemoryRequirements *mem_req = data;

            *size = sizeof(VkMemoryRequirements);
            if (data == NULL)
                return ret;
            mem_req->size = img->total_size;
            mem_req->alignment = 4096;
        }
        break;
    default:
        ret = intel_base_get_info(base, type, size, data);
        break;
    }

    return ret;
}

VkResult intel_img_create(struct intel_dev *dev,
                            const VkImageCreateInfo *info,
                            bool scanout,
                            struct intel_img **img_ret)
{
    struct intel_img *img;
    struct intel_layout *layout;

    img = (struct intel_img *) intel_base_create(&dev->base.handle,
            sizeof(*img), dev->base.dbg, VK_DBG_OBJECT_IMAGE, info, 0);
    if (!img)
        return VK_ERROR_OUT_OF_MEMORY;

    layout = &img->layout;

    img->type = info->imageType;
    img->depth = info->extent.depth;
    img->mip_levels = info->mipLevels;
    img->array_size = info->arraySize;
    img->usage = info->usage;
    img->samples = info->samples;
    intel_layout_init(layout, dev, info, scanout);

    if (layout->bo_stride > intel_max_resource_size / layout->bo_height) {
        intel_dev_log(dev, VK_DBG_MSG_ERROR, VK_VALIDATION_LEVEL_0,
                VK_NULL_HANDLE, 0, 0, "image too big");
        intel_img_destroy(img);
        return VK_ERROR_INVALID_MEMORY_SIZE;
    }

    img->total_size = img->layout.bo_stride * img->layout.bo_height;

    if (layout->aux != INTEL_LAYOUT_AUX_NONE) {
        img->aux_offset = u_align(img->total_size, 4096);
        img->total_size = img->aux_offset +
            layout->aux_stride * layout->aux_height;
    }

    if (layout->separate_stencil) {
        VkImageCreateInfo s8_info;

        img->s8_layout = intel_alloc(img, sizeof(*img->s8_layout), 0,
                VK_SYSTEM_ALLOC_INTERNAL);
        if (!img->s8_layout) {
            intel_img_destroy(img);
            return VK_ERROR_OUT_OF_MEMORY;
        }

        s8_info = *info;
        s8_info.format = VK_FMT_S8_UINT;
        /* no stencil texturing */
        s8_info.usage &= ~VK_IMAGE_USAGE_SAMPLED_BIT;
        assert(icd_format_is_ds(info->format));

        intel_layout_init(img->s8_layout, dev, &s8_info, scanout);

        img->s8_offset = u_align(img->total_size, 4096);
        img->total_size = img->s8_offset +
            img->s8_layout->bo_stride * img->s8_layout->bo_height;
    }

    if (scanout) {
        VkResult ret = intel_wsi_img_init(img);
        if (ret != VK_SUCCESS) {
            intel_img_destroy(img);
            return ret;
        }
    }

    img->obj.destroy = img_destroy;
    img->obj.base.get_info = img_get_info;

    *img_ret = img;

    return VK_SUCCESS;
}

void intel_img_destroy(struct intel_img *img)
{
    if (img->wsi_data)
        intel_wsi_img_cleanup(img);

    if (img->s8_layout)
        intel_free(img, img->s8_layout);

    intel_base_destroy(&img->obj.base);
}

ICD_EXPORT VkResult VKAPI vkOpenPeerImage(
    VkDevice                                  device,
    const VkPeerImageOpenInfo*             pOpenInfo,
    VkImage*                                  pImage,
    VkGpuMemory*                             pMem)
{
    return VK_ERROR_UNAVAILABLE;
}

ICD_EXPORT VkResult VKAPI vkCreateImage(
    VkDevice                                  device,
    const VkImageCreateInfo*                pCreateInfo,
    VkImage*                                  pImage)
{
    struct intel_dev *dev = intel_dev(device);

    return intel_img_create(dev, pCreateInfo, false,
            (struct intel_img **) pImage);
}

ICD_EXPORT VkResult VKAPI vkGetImageSubresourceInfo(
    VkImage                                   image,
    const VkImageSubresource*                pSubresource,
    VkSubresourceInfoType                   infoType,
    size_t*                                     pDataSize,
    void*                                       pData)
{
    const struct intel_img *img = intel_img(image);
    VkResult ret = VK_SUCCESS;

    switch (infoType) {
    case VK_INFO_TYPE_SUBRESOURCE_LAYOUT:
        {
            VkSubresourceLayout *layout = (VkSubresourceLayout *) pData;
            unsigned x, y;

            intel_layout_get_slice_pos(&img->layout, pSubresource->mipLevel,
                    pSubresource->arraySlice, &x, &y);
            intel_layout_pos_to_mem(&img->layout, x, y, &x, &y);

            *pDataSize = sizeof(VkSubresourceLayout);

            if (pData == NULL)
                return ret;
            layout->offset = intel_layout_mem_to_linear(&img->layout, x, y);
            layout->size = intel_layout_get_slice_size(&img->layout,
                    pSubresource->mipLevel);
            layout->rowPitch = img->layout.bo_stride;
            layout->depthPitch = intel_layout_get_slice_stride(&img->layout,
                    pSubresource->mipLevel);
        }
        break;
    default:
        ret = VK_ERROR_INVALID_VALUE;
        break;
    }

    return ret;
}