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Vulkan: Use finalLayout to optimize away barriers before framebuffer copies.

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This commit is contained in:
Henrik Rydgård 2018-03-18 12:09:02 +01:00
parent 2d3655ea23
commit 3e7723ea6d
1 changed files with 16 additions and 4 deletions
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20
ext/native/thin3d/VulkanRenderManager.cpp
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@ -646,6 +646,22 @@ void VulkanRenderManager::CopyFramebuffer(VKRFramebuffer *src, VkRect2D srcRect,
_dbg_assert_msg_(G3D, dstPos.x + srcRect.extent.width <= (uint32_t)dst->width, "dstPos + extent x > width");
_dbg_assert_msg_(G3D, dstPos.y + srcRect.extent.height <= (uint32_t)dst->height, "dstPos + extent y > height");
for (int i = (int)steps_.size() - 1; i >= 0; i--) {
if (steps_[i]->stepType == VKRStepType::RENDER) {
if (steps_[i]->render.framebuffer == src) {
if (steps_[i]->render.finalColorLayout == VK_IMAGE_LAYOUT_UNDEFINED) {
steps_[i]->render.finalColorLayout = VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL;
break;
}
} else if (steps_[i]->render.framebuffer == dst) {
if (steps_[i]->render.finalColorLayout == VK_IMAGE_LAYOUT_UNDEFINED) {
steps_[i]->render.finalColorLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
break;
}
}
}
}
VKRStep *step = new VKRStep{ VKRStepType::COPY };
step->copy.aspectMask = aspectMask;
@ -699,10 +715,6 @@ VkImageView VulkanRenderManager::BindFramebufferAsTexture(VKRFramebuffer *fb, in
steps_[i]->render.finalColorLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
break;
}
else if (steps_[i]->render.finalColorLayout != VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL) {
Crash();
// May need to shadow the framebuffer if we re-order passes later.
}
}
}