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feat(RHI): add rendering state abstraction to RHICommandList

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- Add DepthStencilState and BlendState structs to RHICommandList
- Add SetPrimitiveTopology, SetDepthStencilState, SetStencilRef,
  SetBlendState, SetBlendFactor virtual methods
- Implement new methods in OpenGL backend with full state control
- Implement stub methods in D3D12 backend (states controlled via PSO)
This commit is contained in:
ssdfasd
2026-03-17 23:17:43 +08:00
parent 0b50a57239
commit 254f794cdc
4 changed files with 183 additions and 4 deletions
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5
engine/include/XCEngine/RHI/OpenGL/OpenGLCommandList.h
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@@ -158,11 +158,16 @@ public:
void PopDebugGroup();
void TransitionBarrier(void* resource, ResourceStates stateBefore, ResourceStates stateAfter) override;
void SetPrimitiveTopology(PrimitiveTopology topology) override;
void SetViewport(const Viewport& viewport) override;
void SetViewports(uint32_t count, const Viewport* viewports) override;
void SetScissorRect(const Rect& rect) override;
void SetScissorRects(uint32_t count, const Rect* rects) override;
void SetRenderTargets(uint32_t count, void** renderTargets, void* depthStencil = nullptr) override;
void SetDepthStencilState(const DepthStencilState& state) override;
void SetStencilRef(uint8_t ref) override;
void SetBlendState(const BlendState& state) override;
void SetBlendFactor(const float factor[4]) override;
void ClearRenderTarget(void* renderTarget, const float color[4]) override;
void ClearDepthStencil(void* depthStencil, float depth, uint8_t stencil) override;
void Draw(uint32_t vertexCount, uint32_t instanceCount, uint32_t startVertex, uint32_t startInstance) override;

40
engine/include/XCEngine/RHI/RHICommandList.h
View File

@@ -6,6 +6,40 @@
namespace XCEngine {
namespace RHI {
struct DepthStencilState {
bool depthEnable = true;
bool depthWriteMask = true;
ComparisonFunc depthFunc = ComparisonFunc::Less;
bool stencilEnable = false;
uint8_t stencilReadMask = 0xFF;
uint8_t stencilWriteMask = 0xFF;
struct StencilOpDesc {
StencilOp stencilFailOp = StencilOp::Keep;
StencilOp stencilDepthFailOp = StencilOp::Keep;
StencilOp stencilPassOp = StencilOp::Keep;
ComparisonFunc stencilFunc = ComparisonFunc::Always;
};
StencilOpDesc frontFace;
StencilOpDesc backFace;
};
struct BlendState {
bool alphaToCoverageEnable = false;
bool independentBlendEnable = false;
struct RenderTarget {
bool blendEnable = false;
BlendFactor srcBlend = BlendFactor::One;
BlendFactor dstBlend = BlendFactor::Zero;
BlendOp blendOp = BlendOp::Add;
BlendFactor srcBlendAlpha = BlendFactor::One;
BlendFactor dstBlendAlpha = BlendFactor::Zero;
BlendOp blendOpAlpha = BlendOp::Add;
uint8_t renderTargetWriteMask = 0xF;
};
RenderTarget renderTargets[8];
float blendFactor[4] = { 0.0f, 0.0f, 0.0f, 1.0f };
};
class RHICommandList {
public:
virtual ~RHICommandList() = default;
@@ -18,12 +52,18 @@ public:
virtual void TransitionBarrier(void* resource, ResourceStates stateBefore, ResourceStates stateAfter) = 0;
virtual void SetPipelineState(void* pso) = 0;
virtual void SetPrimitiveTopology(PrimitiveTopology topology) = 0;
virtual void SetViewport(const Viewport& viewport) = 0;
virtual void SetViewports(uint32_t count, const Viewport* viewports) = 0;
virtual void SetScissorRect(const Rect& rect) = 0;
virtual void SetScissorRects(uint32_t count, const Rect* rects) = 0;
virtual void SetRenderTargets(uint32_t count, void** renderTargets, void* depthStencil = nullptr) = 0;
virtual void SetDepthStencilState(const DepthStencilState& state) = 0;
virtual void SetStencilRef(uint8_t ref) = 0;
virtual void SetBlendState(const BlendState& state) = 0;
virtual void SetBlendFactor(const float factor[4]) = 0;
virtual void SetVertexBuffer(uint32_t slot, void* buffer, uint64_t offset, uint32_t stride) = 0;
virtual void SetVertexBuffers(uint32_t startSlot, uint32_t count, const uint64_t* buffers, const uint64_t* offsets, const uint32_t* strides) = 0;
virtual void SetIndexBuffer(void* buffer, uint64_t offset, Format format) = 0;