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Explicit image memory barriers with access flags (Refs #288)

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This commit is contained in:
saschawillems 2017-02-23 19:59:58 +01:00
parent 373f005d9a
commit 83df699dcf
1 changed files with 23 additions and 14 deletions
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37
screenshot/screenshot.cpp
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@ -259,8 +259,7 @@ public:
std::vector<VkVertexInputAttributeDescription> vertexInputAttributes = {
vks::initializers::vertexInputAttributeDescription(0, 0, VK_FORMAT_R32G32B32_SFLOAT, 0), // Position
vks::initializers::vertexInputAttributeDescription(0, 1, VK_FORMAT_R32G32B32_SFLOAT, sizeof(float) * 3), // Normal
vks::initializers::vertexInputAttributeDescription(0, 2, VK_FORMAT_R32G32_SFLOAT, sizeof(float) * 6), // UV
vks::initializers::vertexInputAttributeDescription(0, 3, VK_FORMAT_R32G32B32_SFLOAT, sizeof(float) * 8), // Color
vks::initializers::vertexInputAttributeDescription(0, 2, VK_FORMAT_R32G32B32_SFLOAT, sizeof(float) * 6), // Color
};
VkPipelineVertexInputStateCreateInfo vertexInputState = vks::initializers::pipelineVertexInputStateCreateInfo();
@ -361,25 +360,31 @@ public:
// Do the actual blit from the swapchain image to our host visible destination image
VkCommandBuffer copyCmd = vulkanDevice->createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
VkImageMemoryBarrier imageMemoryBarrier = vks::initializers::imageMemoryBarrier();
// Transition destination image to transfer destination layout
vks::tools::setImageLayout(
vks::tools::insertImageMemoryBarrier(
copyCmd,
dstImage,
VK_IMAGE_ASPECT_COLOR_BIT,
0,
VK_ACCESS_TRANSFER_WRITE_BIT,
VK_IMAGE_LAYOUT_UNDEFINED,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
VK_PIPELINE_STAGE_TRANSFER_BIT,
VK_PIPELINE_STAGE_TRANSFER_BIT);
VK_PIPELINE_STAGE_TRANSFER_BIT,
VkImageSubresourceRange{ VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 });
// Transition swapchain image from present to transfer source layout
vks::tools::setImageLayout(
vks::tools::insertImageMemoryBarrier(
copyCmd,
srcImage,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_ACCESS_MEMORY_READ_BIT,
VK_ACCESS_TRANSFER_READ_BIT,
VK_IMAGE_LAYOUT_PRESENT_SRC_KHR,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
VK_PIPELINE_STAGE_TRANSFER_BIT,
VK_PIPELINE_STAGE_TRANSFER_BIT);
VK_PIPELINE_STAGE_TRANSFER_BIT,
VkImageSubresourceRange{ VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 });
// If source and destination support blit we'll blit as this also does automatic format conversion (e.g. from BGR to RGB)
if (supportsBlit)
@ -428,24 +433,28 @@ public:
}
// Transition destination image to general layout, which is the required layout for mapping the image memory later on
vks::tools::setImageLayout(
vks::tools::insertImageMemoryBarrier(
copyCmd,
dstImage,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_ACCESS_TRANSFER_WRITE_BIT,
VK_ACCESS_MEMORY_READ_BIT,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
VK_IMAGE_LAYOUT_GENERAL,
VK_PIPELINE_STAGE_TRANSFER_BIT,
VK_PIPELINE_STAGE_TRANSFER_BIT);
VK_PIPELINE_STAGE_TRANSFER_BIT,
VkImageSubresourceRange{ VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 });
// Transition back the swap chain image after the blit is done
vks::tools::setImageLayout(
vks::tools::insertImageMemoryBarrier(
copyCmd,
srcImage,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_ACCESS_TRANSFER_READ_BIT,
VK_ACCESS_MEMORY_READ_BIT,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
VK_IMAGE_LAYOUT_PRESENT_SRC_KHR,
VK_PIPELINE_STAGE_TRANSFER_BIT,
VK_PIPELINE_STAGE_TRANSFER_BIT);
VK_PIPELINE_STAGE_TRANSFER_BIT,
VkImageSubresourceRange{ VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 });
vulkanDevice->flushCommandBuffer(copyCmd, queue);