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[Chore] (MG_Backend/DirectVulkan): use vkCmdClearAttachments to implement clear semantics when there's one compatible render pass in flight (instead of interrupting it)

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This commit is contained in:
swung0x48
2026-03-02 17:16:18 +08:00
parent debcb171ce
commit c78a94ed09
3 changed files with 83 additions and 8 deletions
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MobileGL/MG_Backend/DirectVulkan/Renderer/VkRenderPassManager.h
+11 -1
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@@ -27,6 +27,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
static inline VkDevice s_device;
VkRenderPass renderPass = VK_NULL_HANDLE;
VkFramebuffer framebuffer = VK_NULL_HANDLE;
Uint64 compatibilityHash = 0;
// Should we hold pointer-to-resource here?
Vector<VkTextureManager::TextureResource*> textureResources;
Vector<PendingClearAttachmentInfo> pendingClearAttachments;
@@ -39,6 +40,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
RenderPassEntry(RenderPassEntry&& that) noexcept {
std::swap(renderPass, that.renderPass);
std::swap(framebuffer, that.framebuffer);
std::swap(compatibilityHash, that.compatibilityHash);
std::swap(textureResources, that.textureResources);
std::swap(pendingClearAttachments, that.pendingClearAttachments);
std::swap(attachmentCount, that.attachmentCount);
@@ -48,12 +50,14 @@ namespace MobileGL::MG_Backend::DirectVulkan {
RenderPassEntry(
VkRenderPass renderpass,
VkFramebuffer framebuffer,
Uint64 compatibilityHash,
const std::vector<VkTextureManager::TextureResource*>& textureResources,
const Vector<PendingClearAttachmentInfo>& pendingClearAttachments,
Uint32 attachmentCount,
IntVec2 extent, int subpass):
renderPass(renderpass),
framebuffer(framebuffer),
compatibilityHash(compatibilityHash),
textureResources(Move(textureResources)),
pendingClearAttachments(Move(pendingClearAttachments)),
attachmentCount(attachmentCount),
@@ -82,8 +86,14 @@ namespace MobileGL::MG_Backend::DirectVulkan {
Bool Initialize();
void Shutdown();
HashType ComputeHash(const MG_State::GLState::FramebufferObject& fbo, Uint32 swapchainImageIndex) const;
HashType ComputeHash(
const MG_State::GLState::FramebufferObject& fbo,
Uint32 swapchainImageIndex,
Bool includePendingClear = true) const;
RenderPassEntry& GetOrCreateRenderPass(const MG_State::GLState::FramebufferObject& fbo, Uint32 swapchainImageIndex);
static Bool TryClearPendingAttachmentsOnActiveRenderPass(
VkCommandBuffer commandBuffer,
const RenderPassEntry& compatibleRenderPassEntry);
static Bool BeginRenderPass(VkCommandBuffer commandBuffer, RenderPassEntry& renderPassEntry);
static Bool EndRenderPass(VkCommandBuffer commandBuffer);
static RenderPassEntry* GetActiveRenderPass();