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render/vulkan: let vkRenderPass handle blend buffer layout transitions

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This commit is contained in:
Félix Poisot 2026-06-12 17:37:29 +00:00
parent 5d150267e2
commit 5560a72fc8
2 changed files with 5 additions and 30 deletions
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33
render/vulkan/pass.c
View file

@ -428,35 +428,6 @@ static bool render_pass_submit(struct wlr_render_pass *wlr_pass) {
pass->render_buffer_out->transitioned = true; pass->render_buffer_out->transitioned = true;
} }
if (pass->two_pass) {
// On the first frame the clear render pass transitions the blend
// image from undefined and we just mark it transitioned. On every
// frame after, the previous frame left it read-only, so we change
// it back to a color attachment before the render pass starts
if (render_buffer->two_pass.blend_transitioned) {
VkImageMemoryBarrier blend_acq_barrier = {
.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
.image = render_buffer->two_pass.blend_image,
.oldLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
.newLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
.srcAccessMask = VK_ACCESS_SHADER_READ_BIT,
.dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT,
.subresourceRange = {
.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
.layerCount = 1,
.levelCount = 1,
},
};
vkCmdPipelineBarrier(stage_cb->vk, VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT,
VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT,
0, 0, NULL, 0, NULL, 1, &blend_acq_barrier);
} else {
render_buffer->two_pass.blend_transitioned = true;
}
}
// acquire render buffer before rendering // acquire render buffer before rendering
acquire_barriers[idx] = (VkImageMemoryBarrier){ acquire_barriers[idx] = (VkImageMemoryBarrier){
.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER, .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
@ -602,6 +573,10 @@ static bool render_pass_submit(struct wlr_render_pass *wlr_pass) {
goto error; goto error;
} }
if (pass->two_pass) {
render_buffer->two_pass.blend_transitioned = true;
}
free(render_wait); free(render_wait);
vulkan_stage_mark_submit(renderer, render_timeline_point); vulkan_stage_mark_submit(renderer, render_timeline_point);

2
render/vulkan/renderer.c
View file

@ -2485,7 +2485,7 @@ static struct wlr_vk_render_format_setup *find_or_create_render_setup(
.storeOp = VK_ATTACHMENT_STORE_OP_STORE, .storeOp = VK_ATTACHMENT_STORE_OP_STORE,
.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE, .stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE,
.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE, .stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE,
.initialLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL, .initialLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
.finalLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL, .finalLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
}, },
{ {