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Take firstIndex into account when calculating index (quad) buffer size

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Without this we would miss any elements beyond indexCount in the index buffer and they would be filled with random garbage causing vertex bombs
This commit is contained in:
Billy Laws 2022-11-06 19:20:17 +00:00
parent 1f9de17e98
commit 7fed971b2d
3 changed files with 18 additions and 13 deletions
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22
app/src/main/cpp/skyline/gpu/interconnect/maxwell_3d/active_state.cpp
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@ -93,7 +93,7 @@ namespace skyline::gpu::interconnect::maxwell3d {
}
}
static BufferBinding GenerateQuadConversionIndexBuffer(InterconnectContext &ctx, engine::IndexBuffer::IndexSize indexType, BufferView &view, u32 elementCount) {
static BufferBinding GenerateQuadConversionIndexBuffer(InterconnectContext &ctx, engine::IndexBuffer::IndexSize indexType, BufferView &view, u32 firstIndex, u32 elementCount) {
auto viewSpan{view.GetReadOnlyBackingSpan(false /* We attach above so always false */, []() {
// TODO: see Read()
Logger::Error("Dirty index buffer reads for attached buffers are unimplemented");
@ -103,7 +103,7 @@ namespace skyline::gpu::interconnect::maxwell3d {
vk::DeviceSize indexBufferSize{conversion::quads::GetRequiredBufferSize(elementCount, indexSize)};
auto quadConversionAllocation{ctx.gpu.megaBufferAllocator.Allocate(ctx.executor.cycle, indexBufferSize)};
conversion::quads::GenerateIndexedQuadConversionBuffer(quadConversionAllocation.region.data(), viewSpan.data(), elementCount, ConvertIndexType(indexType));
conversion::quads::GenerateIndexedQuadConversionBuffer(quadConversionAllocation.region.data(), viewSpan.subspan(GetIndexBufferSize(indexType, firstIndex)).data(), elementCount, ConvertIndexType(indexType));
return {quadConversionAllocation.buffer, quadConversionAllocation.offset, indexBufferSize};
}
@ -115,11 +115,12 @@ namespace skyline::gpu::interconnect::maxwell3d {
IndexBufferState::IndexBufferState(dirty::Handle dirtyHandle, DirtyManager &manager, const EngineRegisters &engine) : engine{manager, dirtyHandle, engine} {}
void IndexBufferState::Flush(InterconnectContext &ctx, StateUpdateBuilder &builder, bool quadConversion, u32 elementCount) {
void IndexBufferState::Flush(InterconnectContext &ctx, StateUpdateBuilder &builder, bool quadConversion, u32 firstIndex, u32 elementCount) {
usedElementCount = elementCount;
usedFirstIndex = firstIndex;
usedQuadConversion = quadConversion;
size_t size{GetIndexBufferSize(engine->indexBuffer.indexSize, elementCount)};
size_t size{GetIndexBufferSize(engine->indexBuffer.indexSize, firstIndex + elementCount)};
view.Update(ctx, engine->indexBuffer.address, size);
if (!*view) {
Logger::Warn("Unmapped index buffer: 0x{:X}", engine->indexBuffer.address);
@ -131,7 +132,7 @@ namespace skyline::gpu::interconnect::maxwell3d {
indexType = ConvertIndexType(engine->indexBuffer.indexSize);
if (quadConversion)
megaBufferBinding = GenerateQuadConversionIndexBuffer(ctx, engine->indexBuffer.indexSize, *view, elementCount);
megaBufferBinding = GenerateQuadConversionIndexBuffer(ctx, engine->indexBuffer.indexSize, *view, firstIndex, elementCount);
else
megaBufferBinding = view->TryMegaBuffer(ctx.executor.cycle, ctx.gpu.megaBufferAllocator, ctx.executor.executionNumber);
@ -141,16 +142,19 @@ namespace skyline::gpu::interconnect::maxwell3d {
builder.SetIndexBuffer(*view, indexType);
}
bool IndexBufferState::Refresh(InterconnectContext &ctx, StateUpdateBuilder &builder, bool quadConversion, u32 elementCount) {
bool IndexBufferState::Refresh(InterconnectContext &ctx, StateUpdateBuilder &builder, bool quadConversion, u32 firstIndex, u32 elementCount) {
if (elementCount > usedElementCount)
return true;
if (quadConversion != usedQuadConversion)
return true;
if (quadConversion != usedQuadConversion)
return true;
// TODO: optimise this to use buffer sequencing to avoid needing to regenerate the quad buffer every time. We can't use as it is rn though because sequences aren't globally unique and may conflict after buffer recreation
if (usedQuadConversion) {
megaBufferBinding = GenerateQuadConversionIndexBuffer(ctx, engine->indexBuffer.indexSize, *view, elementCount);
megaBufferBinding = GenerateQuadConversionIndexBuffer(ctx, engine->indexBuffer.indexSize, *view, firstIndex, elementCount);
builder.SetIndexBuffer(megaBufferBinding, indexType);
} else if (megaBufferBinding) {
if (auto newMegaBufferBinding{view->TryMegaBuffer(ctx.executor.cycle, ctx.gpu.megaBufferAllocator, ctx.executor.executionNumber)};
@ -390,7 +394,7 @@ namespace skyline::gpu::interconnect::maxwell3d {
dirtyFunc(stencilValues);
}
void ActiveState::Update(InterconnectContext &ctx, Textures &textures, ConstantBufferSet &constantBuffers, StateUpdateBuilder &builder, bool indexed, engine::DrawTopology topology, u32 drawElementCount) {
void ActiveState::Update(InterconnectContext &ctx, Textures &textures, ConstantBufferSet &constantBuffers, StateUpdateBuilder &builder, bool indexed, engine::DrawTopology topology, u32 drawFirstIndex, u32 drawElementCount) {
if (topology != directState.inputAssembly.GetPrimitiveTopology()) {
directState.inputAssembly.SetPrimitiveTopology(topology);
pipeline.MarkDirty(false);
@ -400,7 +404,7 @@ namespace skyline::gpu::interconnect::maxwell3d {
pipeline.Update(ctx, textures, constantBuffers, builder);
ranges::for_each(vertexBuffers, updateFunc);
if (indexed)
updateFunc(indexBuffer, directState.inputAssembly.NeedsQuadConversion(), drawElementCount);
updateFunc(indexBuffer, directState.inputAssembly.NeedsQuadConversion(), drawFirstIndex, drawElementCount);
ranges::for_each(transformFeedbackBuffers, updateFunc);
ranges::for_each(viewports, updateFunc);
ranges::for_each(scissors, updateFunc);

7
app/src/main/cpp/skyline/gpu/interconnect/maxwell_3d/active_state.h
View File

@ -48,14 +48,15 @@ namespace skyline::gpu::interconnect::maxwell3d {
BufferBinding megaBufferBinding{};
vk::IndexType indexType{};
u32 usedElementCount{};
u32 usedFirstIndex{};
bool usedQuadConversion{};
public:
IndexBufferState(dirty::Handle dirtyHandle, DirtyManager &manager, const EngineRegisters &engine);
void Flush(InterconnectContext &ctx, StateUpdateBuilder &builder, bool quadConversion, u32 elementCount);
void Flush(InterconnectContext &ctx, StateUpdateBuilder &builder, bool quadConversion, u32 firstIndex, u32 elementCount);
bool Refresh(InterconnectContext &ctx, StateUpdateBuilder &builder, bool quadConversion, u32 elementCount);
bool Refresh(InterconnectContext &ctx, StateUpdateBuilder &builder, bool quadConversion, u32 firstIndex, u32 elementCount);
void PurgeCaches();
};
@ -256,7 +257,7 @@ namespace skyline::gpu::interconnect::maxwell3d {
/**
* @brief Updates the active state for a given draw operation, removing the dirtiness of all member states
*/
void Update(InterconnectContext &ctx, Textures &textures, ConstantBufferSet &constantBuffers, StateUpdateBuilder &builder, bool indexed, engine::DrawTopology topology, u32 drawElementCount);
void Update(InterconnectContext &ctx, Textures &textures, ConstantBufferSet &constantBuffers, StateUpdateBuilder &builder, bool indexed, engine::DrawTopology topology, u32 drawFirstIndex, u32 drawElementCount);
Pipeline *GetPipeline();

2
app/src/main/cpp/skyline/gpu/interconnect/maxwell_3d/maxwell_3d.cpp
View File

@ -204,7 +204,7 @@ namespace skyline::gpu::interconnect::maxwell3d {
StateUpdateBuilder builder{*ctx.executor.allocator};
Pipeline *oldPipeline{activeState.GetPipeline()};
activeState.Update(ctx, textures, constantBuffers.boundConstantBuffers, builder, indexed, topology, count);
activeState.Update(ctx, textures, constantBuffers.boundConstantBuffers, builder, indexed, topology, first, count);
if (directState.inputAssembly.NeedsQuadConversion()) {
count = conversion::quads::GetIndexCount(count);
first = 0;