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Add render graph texture transition plans

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This commit is contained in:
ssdfasd
2026-04-14 04:45:39 +08:00
parent c0d62dc749
commit 8bd375cd24
4 changed files with 102 additions and 0 deletions
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50
engine/src/Rendering/Graph/RenderGraphCompiler.cpp
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@@ -36,6 +36,7 @@ void CompiledRenderGraph::Reset() {
m_passes.clear();
m_textures.clear();
m_textureLifetimes.clear();
m_textureTransitionPlans.clear();
}
const Containers::String& CompiledRenderGraph::GetPassName(size_t index) const {
@@ -76,6 +77,17 @@ bool CompiledRenderGraph::TryGetImportedTextureOptions(
return true;
}
bool CompiledRenderGraph::TryGetTextureTransitionPlan(
RenderGraphTextureHandle handle,
RenderGraphTextureTransitionPlan& outPlan) const {
if (!handle.IsValid() || handle.index >= m_textureTransitionPlans.size()) {
return false;
}
outPlan = m_textureTransitionPlans[handle.index];
return true;
}
bool RenderGraphCompiler::Compile(
const RenderGraph& graph,
CompiledRenderGraph& outCompiledGraph,
@@ -89,6 +101,16 @@ bool RenderGraphCompiler::Compile(
outErrorMessage);
return false;
}
if (texture.kind == RenderGraphTextureKind::Imported &&
texture.importedOptions.graphOwnsTransitions &&
texture.importedView == nullptr) {
WriteError(
Containers::String("RenderGraph imported texture requires a valid view when graph owns transitions: ") +
texture.name,
outErrorMessage);
return false;
}
}
const size_t passCount = graph.m_passes.size();
@@ -197,6 +219,7 @@ bool RenderGraphCompiler::Compile(
}
outCompiledGraph.m_textureLifetimes.resize(textureCount);
outCompiledGraph.m_textureTransitionPlans.resize(textureCount);
for (size_t textureIndex = 0u; textureIndex < textureCount; ++textureIndex) {
CompiledRenderGraph::CompiledTexture compiledTexture = {};
compiledTexture.name = graph.m_textures[textureIndex].name;
@@ -207,6 +230,19 @@ bool RenderGraphCompiler::Compile(
outCompiledGraph.m_textures.push_back(std::move(compiledTexture));
outCompiledGraph.m_textureLifetimes[textureIndex].kind = graph.m_textures[textureIndex].kind;
RenderGraphTextureTransitionPlan& transitionPlan =
outCompiledGraph.m_textureTransitionPlans[textureIndex];
transitionPlan.graphOwnsTransitions =
graph.m_textures[textureIndex].kind == RenderGraphTextureKind::Transient ||
graph.m_textures[textureIndex].importedOptions.graphOwnsTransitions;
transitionPlan.initialState =
graph.m_textures[textureIndex].kind == RenderGraphTextureKind::Imported
? graph.m_textures[textureIndex].importedOptions.initialState
: RHI::ResourceStates::Common;
transitionPlan.finalState =
graph.m_textures[textureIndex].kind == RenderGraphTextureKind::Imported
? graph.m_textures[textureIndex].importedOptions.finalState
: RHI::ResourceStates::Common;
}
outCompiledGraph.m_passes.reserve(passCount);
@@ -235,11 +271,25 @@ bool RenderGraphCompiler::Compile(
for (const RenderGraph::TextureAccess& access : sourcePass.accesses) {
RenderGraphTextureLifetime& lifetime =
outCompiledGraph.m_textureLifetimes[access.texture.index];
RenderGraphTextureTransitionPlan& transitionPlan =
outCompiledGraph.m_textureTransitionPlans[access.texture.index];
if (!lifetime.used) {
lifetime.used = true;
lifetime.firstPassIndex = compiledPassIndex;
}
lifetime.lastPassIndex = compiledPassIndex;
const RHI::ResourceStates accessState =
ResolveRequiredState(sourcePass.type, access.mode);
if (!transitionPlan.hasFirstAccessState) {
transitionPlan.hasFirstAccessState = true;
transitionPlan.firstAccessState = accessState;
}
transitionPlan.hasLastAccessState = true;
transitionPlan.lastAccessState = accessState;
if (graph.m_textures[access.texture.index].kind == RenderGraphTextureKind::Transient) {
transitionPlan.finalState = accessState;
}
}
}