src/vulkan/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 "private.h"
  31
  32 #include <vulkan/vulkan_intel.h>
  33
  34 VkResult VKAPI vkCreateDmaBufImageINTEL(
  35     VkDevice                                    _device,
  36     const VkDmaBufImageCreateInfo*              pCreateInfo,
  37     VkDeviceMemory*                             pMem,
  38     VkImage*                                    pImage)
  39 {
  40    struct anv_device *device = (struct anv_device *) _device;
  41    struct anv_device_memory *mem;
  42    struct anv_image *image;
  43    VkResult result;
  44
  45    assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_DMA_BUF_IMAGE_CREATE_INFO_INTEL);
  46
  47    mem = anv_device_alloc(device, sizeof(*mem), 8,
  48                           VK_SYSTEM_ALLOC_TYPE_API_OBJECT);
  49    if (mem == NULL)
  50       return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
  51
  52    mem->bo.gem_handle = anv_gem_fd_to_handle(device, pCreateInfo->fd);
  53    if (!mem->bo.gem_handle) {
  54       result = vk_error(VK_ERROR_OUT_OF_DEVICE_MEMORY);
  55       goto fail;
  56    }
  57
  58    mem->bo.map = NULL;
  59    mem->bo.index = 0;
  60    mem->bo.offset = 0;
  61    mem->bo.size = pCreateInfo->strideInBytes * pCreateInfo->extent.height;
  62
  63    image = anv_device_alloc(device, sizeof(*image), 8,
  64                             VK_SYSTEM_ALLOC_TYPE_API_OBJECT);
  65    if (image == NULL) {
  66       result = vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
  67       goto fail_mem;
  68    }
  69
  70    image->bo = &mem->bo;
  71    image->offset = 0;
  72    image->type = VK_IMAGE_TYPE_2D;
  73    image->extent = pCreateInfo->extent;
  74    image->tile_mode = XMAJOR;
  75    image->stride = pCreateInfo->strideInBytes;
  76    image->size = mem->bo.size;
  77
  78    assert(image->extent.width > 0);
  79    assert(image->extent.height > 0);
  80    assert(image->extent.depth == 1);
  81
  82    *pMem = (VkDeviceMemory) mem;
  83    *pImage = (VkImage) image;
  84
  85    return VK_SUCCESS;
  86
  87  fail_mem:
  88    anv_gem_close(device, mem->bo.gem_handle);
  89  fail:
  90    anv_device_free(device, mem);
  91
  92    return result;
  93 }