src/intel/vulkan/anv_intel.c

   1 /*
   2  * Copyright © 2015 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 #include <assert.h>
  25 #include <stdbool.h>
  26 #include <string.h>
  27 #include <unistd.h>
  28 #include <fcntl.h>
  29
  30 #include "anv_private.h"
  31
  32 VkResult anv_CreateDmaBufImageINTEL(
  33     VkDevice                                    _device,
  34     const VkDmaBufImageCreateInfo*              pCreateInfo,
  35     const VkAllocationCallbacks*                pAllocator,
  36     VkDeviceMemory*                             pMem,
  37     VkImage*                                    pImage)
  38 {
  39    ANV_FROM_HANDLE(anv_device, device, _device);
  40    struct anv_device_memory *mem;
  41    struct anv_image *image;
  42    VkResult result;
  43    VkImage image_h;
  44
  45    assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_DMA_BUF_IMAGE_CREATE_INFO_INTEL);
  46
  47    mem = vk_alloc2(&device->alloc, pAllocator, sizeof(*mem), 8,
  48                     VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
  49    if (mem == NULL)
  50       return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
  51
  52    uint32_t gem_handle = anv_gem_fd_to_handle(device, pCreateInfo->fd);
  53    if (!gem_handle) {
  54       result = vk_error(VK_ERROR_OUT_OF_DEVICE_MEMORY);
  55       goto fail;
  56    }
  57
  58    uint64_t size = (uint64_t)pCreateInfo->strideInBytes * pCreateInfo->extent.height;
  59
  60    anv_bo_init(&mem->bo, gem_handle, size);
  61
  62    anv_image_create(_device,
  63       &(struct anv_image_create_info) {
  64          .isl_tiling_flags = ISL_TILING_X_BIT,
  65          .stride = pCreateInfo->strideInBytes,
  66          .vk_info =
  67       &(VkImageCreateInfo) {
  68          .sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
  69          .imageType = VK_IMAGE_TYPE_2D,
  70          .format = pCreateInfo->format,
  71          .extent = pCreateInfo->extent,
  72          .mipLevels = 1,
  73          .arrayLayers = 1,
  74          .samples = 1,
  75          /* FIXME: Need a way to use X tiling to allow scanout */
  76          .tiling = VK_IMAGE_TILING_OPTIMAL,
  77          .usage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT,
  78          .flags = 0,
  79       }},
  80       pAllocator, &image_h);
  81
  82    image = anv_image_from_handle(image_h);
  83    image->bo = &mem->bo;
  84    image->offset = 0;
  85
  86    assert(image->extent.width > 0);
  87    assert(image->extent.height > 0);
  88    assert(image->extent.depth == 1);
  89
  90    *pMem = anv_device_memory_to_handle(mem);
  91    *pImage = anv_image_to_handle(image);
  92
  93    return VK_SUCCESS;
  94
  95  fail:
  96    vk_free2(&device->alloc, pAllocator, mem);
  97
  98    return result;
  99 }