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Tweak Triangle subpass dependencies

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This commit is contained in:
Petr Kraus 2020-02-07 20:55:31 +01:00
parent 2a986b6a87
commit 3e8c6e952f
1 changed files with 12 additions and 11 deletions
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17
examples/triangle/triangle.cpp
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@ -755,20 +755,21 @@ public:
// Does the transition from final to initial layout
dependencies[0].srcSubpass = VK_SUBPASS_EXTERNAL; // Producer of the dependency
dependencies[0].dstSubpass = 0; // Consumer is our single subpass that will wait for the execution depdendency
dependencies[0].srcStageMask = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
dependencies[0].dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
dependencies[0].srcAccessMask = VK_ACCESS_MEMORY_READ_BIT;
dependencies[0].dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
dependencies[0].srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT; // Match our pWaitDstStageMask when we vkQueueSubmit
dependencies[0].dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT; // is a loadOp stage for color attachments
dependencies[0].srcAccessMask = 0; // semaphore wait already does memory dependency for us
dependencies[0].dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT; // is a loadOp CLEAR access mask for color attachments
dependencies[0].dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT;
// Second dependency at the end the renderpass
// Does the transition from the initial to the final layout
// Technically this is the same as the implicit subpass dependency, but we are gonna state it explicitly here
dependencies[1].srcSubpass = 0; // Producer of the dependency is our single subpass
dependencies[1].dstSubpass = VK_SUBPASS_EXTERNAL; // Consumer are all commands outside of the renderpass
dependencies[1].srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
dependencies[1].dstStageMask = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
dependencies[1].srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
dependencies[1].dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
dependencies[1].srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT; // is a storeOp stage for color attachments
dependencies[1].dstStageMask = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT; // Do not block any subsequent work
dependencies[1].srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT; // is a storeOp `STORE` access mask for color attachments
dependencies[1].dstAccessMask = 0;
dependencies[1].dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT;
// Create the actual renderpass