src/intel/vulkan/anv_pass.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 "anv_private.h"
  25
  26 VkResult anv_CreateRenderPass(
  27     VkDevice                                    _device,
  28     const VkRenderPassCreateInfo*               pCreateInfo,
  29     const VkAllocationCallbacks*                pAllocator,
  30     VkRenderPass*                               pRenderPass)
  31 {
  32    ANV_FROM_HANDLE(anv_device, device, _device);
  33    struct anv_render_pass *pass;
  34    size_t size;
  35    size_t attachments_offset;
  36
  37    assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO);
  38
  39    size = sizeof(*pass);
  40    size += pCreateInfo->subpassCount * sizeof(pass->subpasses[0]);
  41    attachments_offset = size;
  42    size += pCreateInfo->attachmentCount * sizeof(pass->attachments[0]);
  43
  44    pass = anv_alloc2(&device->alloc, pAllocator, size, 8,
  45                      VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
  46    if (pass == NULL)
  47       return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
  48
  49    /* Clear the subpasses along with the parent pass. This required because
  50     * each array member of anv_subpass must be a valid pointer if not NULL.
  51     */
  52    memset(pass, 0, size);
  53    pass->attachment_count = pCreateInfo->attachmentCount;
  54    pass->subpass_count = pCreateInfo->subpassCount;
  55    pass->attachments = (void *) pass + attachments_offset;
  56
  57    for (uint32_t i = 0; i < pCreateInfo->attachmentCount; i++) {
  58       struct anv_render_pass_attachment *att = &pass->attachments[i];
  59
  60       att->format = pCreateInfo->pAttachments[i].format;
  61       att->samples = pCreateInfo->pAttachments[i].samples;
  62       att->load_op = pCreateInfo->pAttachments[i].loadOp;
  63       att->store_op = pCreateInfo->pAttachments[i].storeOp;
  64       att->stencil_load_op = pCreateInfo->pAttachments[i].stencilLoadOp;
  65    }
  66
  67    uint32_t subpass_attachment_count = 0, *p;
  68    for (uint32_t i = 0; i < pCreateInfo->subpassCount; i++) {
  69       const VkSubpassDescription *desc = &pCreateInfo->pSubpasses[i];
  70
  71       subpass_attachment_count +=
  72          desc->inputAttachmentCount +
  73          desc->colorAttachmentCount +
  74          /* Count colorAttachmentCount again for resolve_attachments */
  75          desc->colorAttachmentCount;
  76    }
  77
  78    pass->subpass_attachments =
  79       anv_alloc2(&device->alloc, pAllocator,
  80                  subpass_attachment_count * sizeof(uint32_t), 8,
  81                  VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
  82    if (pass->subpass_attachments == NULL) {
  83       anv_free2(&device->alloc, pAllocator, pass);
  84       return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
  85    }
  86
  87    p = pass->subpass_attachments;
  88    for (uint32_t i = 0; i < pCreateInfo->subpassCount; i++) {
  89       const VkSubpassDescription *desc = &pCreateInfo->pSubpasses[i];
  90       struct anv_subpass *subpass = &pass->subpasses[i];
  91
  92       subpass->input_count = desc->inputAttachmentCount;
  93       subpass->color_count = desc->colorAttachmentCount;
  94
  95       if (desc->inputAttachmentCount > 0) {
  96          subpass->input_attachments = p;
  97          p += desc->inputAttachmentCount;
  98
  99          for (uint32_t j = 0; j < desc->inputAttachmentCount; j++) {
 100             subpass->input_attachments[j]
 101                = desc->pInputAttachments[j].attachment;
 102          }
 103       }
 104
 105       if (desc->colorAttachmentCount > 0) {
 106          subpass->color_attachments = p;
 107          p += desc->colorAttachmentCount;
 108
 109          for (uint32_t j = 0; j < desc->colorAttachmentCount; j++) {
 110             subpass->color_attachments[j]
 111                = desc->pColorAttachments[j].attachment;
 112          }
 113       }
 114
 115       subpass->has_resolve = false;
 116       if (desc->pResolveAttachments) {
 117          subpass->resolve_attachments = p;
 118          p += desc->colorAttachmentCount;
 119
 120          for (uint32_t j = 0; j < desc->colorAttachmentCount; j++) {
 121             uint32_t a = desc->pResolveAttachments[j].attachment;
 122             subpass->resolve_attachments[j] = a;
 123             if (a != VK_ATTACHMENT_UNUSED)
 124                subpass->has_resolve = true;
 125          }
 126       }
 127
 128       if (desc->pDepthStencilAttachment) {
 129          subpass->depth_stencil_attachment =
 130             desc->pDepthStencilAttachment->attachment;
 131       } else {
 132          subpass->depth_stencil_attachment = VK_ATTACHMENT_UNUSED;
 133       }
 134    }
 135
 136    *pRenderPass = anv_render_pass_to_handle(pass);
 137
 138    return VK_SUCCESS;
 139 }
 140
 141 void anv_DestroyRenderPass(
 142     VkDevice                                    _device,
 143     VkRenderPass                                _pass,
 144     const VkAllocationCallbacks*                pAllocator)
 145 {
 146    ANV_FROM_HANDLE(anv_device, device, _device);
 147    ANV_FROM_HANDLE(anv_render_pass, pass, _pass);
 148
 149    anv_free2(&device->alloc, pAllocator, pass->subpass_attachments);
 150    anv_free2(&device->alloc, pAllocator, pass);
 151 }
 152
 153 void anv_GetRenderAreaGranularity(
 154     VkDevice                                    device,
 155     VkRenderPass                                renderPass,
 156     VkExtent2D*                                 pGranularity)
 157 {
 158    *pGranularity = (VkExtent2D) { 1, 1 };
 159 }