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Use indexed drawing in RHI triangle test

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This commit is contained in:
ssdfasd
2026-03-25 23:34:12 +08:00
parent 8fabdc603c
commit 8f9a2d17a5
1 changed files with 36 additions and 1 deletions
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37
tests/RHI/integration/triangle/main.cpp
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@@ -29,6 +29,8 @@ constexpr Vertex kTriangleVertices[] = {
{ { 0.5f, -0.5f, 0.0f, 1.0f }, { 0.0f, 0.0f, 1.0f, 1.0f } },
};
constexpr uint32_t kTriangleIndices[] = { 0, 1, 2 };
const char kTriangleHlsl[] = R"(
struct VSInput {
float4 position : POSITION;
@@ -149,6 +151,8 @@ private:
RHIBuffer* mVertexBuffer = nullptr;
RHIResourceView* mVertexBufferView = nullptr;
RHIBuffer* mIndexBuffer = nullptr;
RHIResourceView* mIndexBufferView = nullptr;
RHIPipelineState* mPipelineState = nullptr;
};
@@ -180,6 +184,23 @@ void TriangleTest::InitializeTriangleResources() {
mVertexBufferView = GetDevice()->CreateVertexBufferView(mVertexBuffer, viewDesc);
ASSERT_NE(mVertexBufferView, nullptr);
BufferDesc indexBufferDesc = {};
indexBufferDesc.size = sizeof(kTriangleIndices);
indexBufferDesc.stride = sizeof(uint32_t);
indexBufferDesc.bufferType = static_cast<uint32_t>(BufferType::Index);
mIndexBuffer = GetDevice()->CreateBuffer(indexBufferDesc);
ASSERT_NE(mIndexBuffer, nullptr);
mIndexBuffer->SetData(kTriangleIndices, sizeof(kTriangleIndices));
mIndexBuffer->SetStride(sizeof(uint32_t));
mIndexBuffer->SetBufferType(BufferType::Index);
ResourceViewDesc indexViewDesc = {};
indexViewDesc.dimension = ResourceViewDimension::Buffer;
indexViewDesc.format = static_cast<uint32_t>(Format::R32_UInt);
mIndexBufferView = GetDevice()->CreateIndexBufferView(mIndexBuffer, indexViewDesc);
ASSERT_NE(mIndexBufferView, nullptr);
GraphicsPipelineDesc pipelineDesc = CreateTrianglePipelineDesc(GetBackendType());
mPipelineState = GetDevice()->CreatePipelineState(pipelineDesc);
ASSERT_NE(mPipelineState, nullptr);
@@ -201,16 +222,29 @@ void TriangleTest::ShutdownTriangleResources() {
mVertexBufferView = nullptr;
}
if (mIndexBufferView != nullptr) {
mIndexBufferView->Shutdown();
delete mIndexBufferView;
mIndexBufferView = nullptr;
}
if (mVertexBuffer != nullptr) {
mVertexBuffer->Shutdown();
delete mVertexBuffer;
mVertexBuffer = nullptr;
}
if (mIndexBuffer != nullptr) {
mIndexBuffer->Shutdown();
delete mIndexBuffer;
mIndexBuffer = nullptr;
}
}
void TriangleTest::RenderFrame() {
ASSERT_NE(mPipelineState, nullptr);
ASSERT_NE(mVertexBufferView, nullptr);
ASSERT_NE(mIndexBufferView, nullptr);
RHICommandList* cmdList = GetCommandList();
RHICommandQueue* cmdQueue = GetCommandQueue();
@@ -233,7 +267,8 @@ void TriangleTest::RenderFrame() {
uint64_t offsets[] = { 0 };
uint32_t strides[] = { sizeof(Vertex) };
cmdList->SetVertexBuffers(0, 1, vertexBuffers, offsets, strides);
cmdList->Draw(3);
cmdList->SetIndexBuffer(mIndexBufferView, 0);
cmdList->DrawIndexed(static_cast<uint32_t>(sizeof(kTriangleIndices) / sizeof(kTriangleIndices[0])));
EndRender();