mirror of https://github.com/bjornbytes/lovr.git
webgpu: pipeline;
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bjorn
parent
67235a5777
commit
2a0780718c
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@ -25,6 +25,11 @@ struct gpu_shader {
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WGPUPipelineLayout pipelineLayout;
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};
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struct gpu_pipeline {
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WGPURenderPipeline render;
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WGPUComputePipeline compute;
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};
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size_t gpu_sizeof_buffer(void) { return sizeof(gpu_buffer); }
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size_t gpu_sizeof_texture(void) { return sizeof(gpu_texture); }
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size_t gpu_sizeof_sampler(void) { return sizeof(gpu_sampler); }
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@ -273,6 +278,214 @@ void gpu_shader_destroy(gpu_shader* shader) {
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wgpuPipelineLayoutRelease(shader->pipelineLayout);
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}
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// Bundle
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// Pipeline
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bool gpu_pipeline_init_graphics(gpu_pipeline* pipeline, gpu_pipeline_info* info) {
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static const WGPUPrimitiveTopology topologies[] = {
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[GPU_DRAW_POINTS] = WGPUPrimitiveTopology_PointList,
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[GPU_DRAW_LINES] = WGPUPrimitiveTopology_LineList,
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[GPU_DRAW_TRIANGLES] = WGPUPrimitiveTopology_TriangleList
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};
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static const WGPUVertexFormat attributeTypes[] = {
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[GPU_TYPE_I8x4] = WGPUVertexFormat_Sint8x4,
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[GPU_TYPE_U8x4] = WGPUVertexFormat_Uint8x4,
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[GPU_TYPE_SN8x4] = WGPUVertexFormat_Snorm8x4,
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[GPU_TYPE_UN8x4] = WGPUVertexFormat_Unorm8x4,
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[GPU_TYPE_UN10x3] = WGPUVertexFormat_Undefined,
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[GPU_TYPE_I16] = WGPUVertexFormat_Undefined,
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[GPU_TYPE_I16x2] = WGPUVertexFormat_Sint16x2,
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[GPU_TYPE_I16x4] = WGPUVertexFormat_Sint16x4,
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[GPU_TYPE_U16] = WGPUVertexFormat_Undefined,
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[GPU_TYPE_U16x2] = WGPUVertexFormat_Uint16x2,
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[GPU_TYPE_U16x4] = WGPUVertexFormat_Uint16x4,
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[GPU_TYPE_SN16x2] = WGPUVertexFormat_Snorm16x2,
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[GPU_TYPE_SN16x4] = WGPUVertexFormat_Snorm16x4,
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[GPU_TYPE_UN16x2] = WGPUVertexFormat_Unorm16x2,
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[GPU_TYPE_UN16x4] = WGPUVertexFormat_Unorm16x4,
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[GPU_TYPE_I32] = WGPUVertexFormat_Sint32,
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[GPU_TYPE_I32x2] = WGPUVertexFormat_Sint32x2,
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[GPU_TYPE_I32x3] = WGPUVertexFormat_Sint32x3,
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[GPU_TYPE_I32x4] = WGPUVertexFormat_Sint32x4,
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[GPU_TYPE_U32] = WGPUVertexFormat_Uint32,
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[GPU_TYPE_U32x2] = WGPUVertexFormat_Uint32x2,
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[GPU_TYPE_U32x3] = WGPUVertexFormat_Uint32x3,
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[GPU_TYPE_U32x4] = WGPUVertexFormat_Uint32x4,
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[GPU_TYPE_F16x2] = WGPUVertexFormat_Float16x2,
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[GPU_TYPE_F16x4] = WGPUVertexFormat_Float16x4,
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[GPU_TYPE_F32] = WGPUVertexFormat_Float32,
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[GPU_TYPE_F32x2] = WGPUVertexFormat_Float32x2,
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[GPU_TYPE_F32x3] = WGPUVertexFormat_Float32x3,
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[GPU_TYPE_F32x4] = WGPUVertexFormat_Float32x4
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};
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static const WGPUFrontFace frontFaces[] = {
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[GPU_WINDING_CCW] = WGPUFrontFace_CCW,
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[GPU_WINDING_CW] = WGPUFrontFace_CW
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};
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static const WGPUCullMode cullModes[] = {
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[GPU_CULL_NONE] = WGPUCullMode_None,
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[GPU_CULL_FRONT] = WGPUCullMode_Front,
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[GPU_CULL_BACK] = WGPUCullMode_Back
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};
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static const WGPUCompareFunction compares[] = {
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[GPU_COMPARE_NONE] = WGPUCompareFunction_Always,
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[GPU_COMPARE_EQUAL] = WGPUCompareFunction_Equal,
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[GPU_COMPARE_NEQUAL] = WGPUCompareFunction_NotEqual,
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[GPU_COMPARE_LESS] = WGPUCompareFunction_Less,
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[GPU_COMPARE_LEQUAL] = WGPUCompareFunction_LessEqual,
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[GPU_COMPARE_GREATER] = WGPUCompareFunction_Greater,
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[GPU_COMPARE_GEQUAL] = WGPUCompareFunction_GreaterEqual
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};
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static const WGPUStencilOperation stencilOps[] = {
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[GPU_STENCIL_KEEP] = WGPUStencilOperation_Keep,
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[GPU_STENCIL_ZERO] = WGPUStencilOperation_Zero,
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[GPU_STENCIL_REPLACE] = WGPUStencilOperation_Replace,
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[GPU_STENCIL_INCREMENT] = WGPUStencilOperation_IncrementClamp,
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[GPU_STENCIL_DECREMENT] = WGPUStencilOperation_DecrementClamp,
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[GPU_STENCIL_INCREMENT_WRAP] = WGPUStencilOperation_IncrementWrap,
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[GPU_STENCIL_DECREMENT_WRAP] = WGPUStencilOperation_DecrementWrap,
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[GPU_STENCIL_INVERT] = WGPUStencilOperation_Invert
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};
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static const WGPUBlendFactor blendFactors[] = {
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[GPU_BLEND_ZERO] = WGPUBlendFactor_Zero,
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[GPU_BLEND_ONE] = WGPUBlendFactor_One,
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[GPU_BLEND_SRC_COLOR] = WGPUBlendFactor_Src,
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[GPU_BLEND_ONE_MINUS_SRC_COLOR] = WGPUBlendFactor_OneMinusSrc,
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[GPU_BLEND_SRC_ALPHA] = WGPUBlendFactor_SrcAlpha,
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[GPU_BLEND_ONE_MINUS_SRC_ALPHA] = WGPUBlendFactor_OneMinusSrcAlpha,
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[GPU_BLEND_DST_COLOR] = WGPUBlendFactor_Dst,
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[GPU_BLEND_ONE_MINUS_DST_COLOR] = WGPUBlendFactor_OneMinusDst,
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[GPU_BLEND_DST_ALPHA] = WGPUBlendFactor_DstAlpha,
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[GPU_BLEND_ONE_MINUS_DST_ALPHA] = WGPUBlendFactor_OneMinusDstAlpha
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};
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static const WGPUBlendOperation blendOps[] = {
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[GPU_BLEND_ADD] = WGPUBlendOperation_Add,
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[GPU_BLEND_SUB] = WGPUBlendOperation_Subtract,
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[GPU_BLEND_RSUB] = WGPUBlendOperation_ReverseSubtract,
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[GPU_BLEND_MIN] = WGPUBlendOperation_Min,
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[GPU_BLEND_MAX] = WGPUBlendOperation_Max
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};
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uint32_t totalAttributeCount = 0;
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WGPUVertexAttribute attributes[16];
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WGPUVertexBufferLayout vertexBuffers[16];
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for (uint32_t i = 0; i < info->vertex.bufferCount; i++) {
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vertexBuffers[i] = (WGPUVertexBufferLayout) {
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.arrayStride = info->vertex.bufferStrides[i],
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.stepMode = (info->vertex.instancedBuffers & (1 << i)) ? WGPUVertexStepMode_Instance : WGPUVertexStepMode_Vertex,
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.attributeCount = 0,
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.attributes = &attributes[totalAttributeCount]
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};
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for (uint32_t j = 0; j < info->vertex.attributeCount; j++) {
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if (info->vertex.attributes[j].buffer == i) {
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attributes[totalAttributeCount++] = (WGPUVertexAttribute) {
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.format = attributeTypes[info->vertex.attributes[j].type],
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.offset = info->vertex.attributes[j].offset,
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.shaderLocation = info->vertex.attributes[j].location
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};
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}
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}
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totalAttributeCount += vertexBuffers[i].attributeCount;
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}
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WGPUVertexState vertex = {
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.module = info->shader->handles[0],
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.entryPoint = "main",
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.bufferCount = info->vertex.bufferCount,
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.buffers = vertexBuffers
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};
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WGPUPrimitiveState primitive = {
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.topology = topologies[info->drawMode],
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.frontFace = frontFaces[info->rasterizer.winding],
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.cullMode = cullModes[info->rasterizer.cullMode],
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};
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WGPUStencilFaceState stencil = {
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.compare = compares[info->stencil.test],
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.failOp = stencilOps[info->stencil.failOp],
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.depthFailOp = stencilOps[info->stencil.depthFailOp],
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.passOp = stencilOps[info->stencil.passOp]
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};
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WGPUDepthStencilState depth = {
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.format = convertFormat(info->depth.format, false),
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.depthWriteEnabled = info->depth.write,
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.depthCompare = compares[info->depth.test],
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.stencilFront = stencil,
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.stencilBack = stencil,
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.stencilReadMask = info->stencil.testMask,
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.stencilWriteMask = info->stencil.writeMask,
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.depthBias = info->rasterizer.depthOffset,
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.depthBiasSlopeScale = info->rasterizer.depthOffsetSloped,
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.depthBiasClamp = info->rasterizer.depthOffsetClamp
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};
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WGPUMultisampleState multisample = {
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.count = info->multisample.count,
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.alphaToCoverageEnabled = info->multisample.alphaToCoverage
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};
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WGPUBlendState blends[4];
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WGPUColorTargetState targets[4];
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for (uint32_t i = 0; i < info->attachmentCount; i++) {
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targets[i] = (WGPUColorTargetState) {
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.format = convertFormat(info->color[i].format, info->color[i].srgb),
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.blend = info->color[i].blend.enabled ? &blends[i] : NULL,
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.writeMask = info->color[i].mask
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};
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if (info->color[i].blend.enabled) {
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blends[i] = (WGPUBlendState) {
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.color.operation = blendOps[info->color[i].blend.color.op],
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.color.srcFactor = blendFactors[info->color[i].blend.color.src],
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.color.dstFactor = blendFactors[info->color[i].blend.color.dst],
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.alpha.operation = blendOps[info->color[i].blend.alpha.op],
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.alpha.srcFactor = blendFactors[info->color[i].blend.alpha.src],
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.alpha.dstFactor = blendFactors[info->color[i].blend.alpha.dst]
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};
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}
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}
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WGPUFragmentState fragment = {
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.module = info->shader->handles[1],
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.entryPoint = "main",
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.targetCount = info->attachmentCount,
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.targets = targets
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};
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WGPURenderPipelineDescriptor pipelineInfo = {
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.label = info->label,
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.layout = info->shader->pipelineLayout,
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.vertex = vertex,
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.primitive = primitive,
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.depthStencil = info->depth.format ? &depth : NULL,
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.multisample = multisample,
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.fragment = &fragment
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};
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return pipeline->render = wgpuDeviceCreateRenderPipeline(state.device, &pipelineInfo);
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}
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bool gpu_pipeline_init_compute(gpu_pipeline* pipeline, gpu_compute_pipeline_info* info) {
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}
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void gpu_pipeline_destroy(gpu_pipeline* pipeline) {
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if (pipeline->render) wgpuRenderPipelineRelease(pipeline->render);
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if (pipeline->compute) wgpuComputePipelineRelease(pipeline->compute);
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}
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// Entry
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bool gpu_init(gpu_config* config) {
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