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[Vulkan] Swapchain pass dependencies

This commit is contained in:
Triang3l 2020-10-03 13:13:16 +03:00
parent 865f77bae2
commit bc1cbd042e
1 changed files with 33 additions and 2 deletions
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35
src/xenia/ui/vulkan/vulkan_context.cc
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@ -529,6 +529,36 @@ bool VulkanContext::BeginSwap() {
render_pass_subpass.pDepthStencilAttachment = nullptr;
render_pass_subpass.preserveAttachmentCount = 0;
render_pass_subpass.pPreserveAttachments = nullptr;
// Presentation engine does memory reading - external dependencies
// needed, and presentation doesn't occur in any normal pipeline stage,
// but it can be represented in the "bottom of pipeline" stage.
// https://software.intel.com/content/www/us/en/develop/articles/api-without-secrets-introduction-to-vulkan-part-4.html
VkSubpassDependency render_pass_dependencies[2];
render_pass_dependencies[0].srcSubpass = VK_SUBPASS_EXTERNAL;
render_pass_dependencies[0].dstSubpass = 0;
render_pass_dependencies[0].srcStageMask =
VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
render_pass_dependencies[0].dstStageMask =
VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
render_pass_dependencies[0].srcAccessMask = VK_ACCESS_MEMORY_READ_BIT;
// Using blending, so both reading and writing.
render_pass_dependencies[0].dstAccessMask =
VK_ACCESS_COLOR_ATTACHMENT_READ_BIT |
VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
render_pass_dependencies[0].dependencyFlags =
VK_DEPENDENCY_BY_REGION_BIT;
render_pass_dependencies[1].srcSubpass = 0;
render_pass_dependencies[1].dstSubpass = VK_SUBPASS_EXTERNAL;
render_pass_dependencies[1].srcStageMask =
VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
render_pass_dependencies[1].dstStageMask =
VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
render_pass_dependencies[1].srcAccessMask =
VK_ACCESS_COLOR_ATTACHMENT_READ_BIT |
VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
render_pass_dependencies[1].dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
render_pass_dependencies[1].dependencyFlags =
VK_DEPENDENCY_BY_REGION_BIT;
VkRenderPassCreateInfo render_pass_create_info;
render_pass_create_info.sType =
VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
@ -538,8 +568,9 @@ bool VulkanContext::BeginSwap() {
render_pass_create_info.pAttachments = &render_pass_color_attachment;
render_pass_create_info.subpassCount = 1;
render_pass_create_info.pSubpasses = &render_pass_subpass;
render_pass_create_info.dependencyCount = 0;
render_pass_create_info.pDependencies = nullptr;
render_pass_create_info.dependencyCount =
uint32_t(xe::countof(render_pass_dependencies));
render_pass_create_info.pDependencies = render_pass_dependencies;
if (dfn.vkCreateRenderPass(device, &render_pass_create_info, nullptr,
&swap_render_pass_) != VK_SUCCESS) {
XELOGE("Failed to create the Vulkan presentation render pass.");