public static IntPtr CreatePipeline(IntPtr bindGroupLayout)
{
// Load shaders
var vertMod = CreateShader(triangleVert);
//var vertMod = TriangleCPP.createVertShader();
var fragMod = CreateShader(triangleFrag);
//var fragMod = TriangleCPP.createFragShader();
WGPUPipelineLayoutDescriptor layoutDesc = new WGPUPipelineLayoutDescriptor
{
bindGroupLayoutCount = 1,
bindGroupLayouts = &bindGroupLayout
};
IntPtr pipelineLayout = WebGPUNative.wgpuDeviceCreatePipelineLayout(Device, &layoutDesc);
// begin pipeline set-up
WGPURenderPipelineDescriptor desc = new WGPURenderPipelineDescriptor
{
layout = pipelineLayout,
vertexStage = new WGPUProgrammableStageDescriptor()
{
module = vertMod,
entryPoint = str_entrypoint
}
};
WGPUProgrammableStageDescriptor fragStage = new WGPUProgrammableStageDescriptor
{
module = fragMod,
entryPoint = str_entrypoint
};
desc.fragmentStage = &fragStage;
// describe buffer layouts
var vertAttrs = stackalloc WGPUVertexAttributeDescriptor[2];
vertAttrs[0] = new WGPUVertexAttributeDescriptor
{
format = WGPUVertexFormat.WGPUVertexFormat_Float2,
offset = 0,
shaderLocation = 0
};
vertAttrs[1] = new WGPUVertexAttributeDescriptor
{
format = WGPUVertexFormat.WGPUVertexFormat_Float3,
offset = 2 * sizeof(float),
shaderLocation = 1
};
WGPUVertexBufferLayoutDescriptor vertDesc = new WGPUVertexBufferLayoutDescriptor
{
arrayStride = 5 * sizeof(float),
attributeCount = 2,
attributes = vertAttrs
};
WGPUVertexStateDescriptor vertState = new WGPUVertexStateDescriptor
{
////indexFormat = WGPUIndexFormat.WGPUIndexFormat_Uint16,
vertexBufferCount = 1,
vertexBuffers = &vertDesc
};
desc.vertexState = &vertState;
desc.primitiveTopology = WGPUPrimitiveTopology.WGPUPrimitiveTopology_TriangleList;
desc.sampleCount = 1;
// describe blend
WGPUBlendDescriptor blendDesc = new WGPUBlendDescriptor
{
operation = WGPUBlendOperation.WGPUBlendOperation_Add,
srcFactor = WGPUBlendFactor.WGPUBlendFactor_SrcAlpha,
dstFactor = WGPUBlendFactor.WGPUBlendFactor_OneMinusSrcAlpha
};
WGPUColorStateDescriptor colorDesc = new WGPUColorStateDescriptor
{
format = Dawn.getSwapChainFormat(Device),
alphaBlend = blendDesc,
colorBlend = blendDesc,
writeMask = WGPUColorWriteMask.WGPUColorWriteMask_All
};
desc.colorStateCount = 1;
desc.colorStates = &colorDesc;
desc.sampleMask = 0xFFFFFFFF; // <-- Note: this currently causes Emscripten to fail (sampleMask ends up as -1, which trips an assert)
IntPtr _pipeline = WebGPUNative.wgpuDeviceCreateRenderPipeline(Device, ref desc);
// partial clean-up (just move to the end, no?)
WebGPUNative.wgpuPipelineLayoutRelease(pipelineLayout);
WebGPUNative.wgpuShaderModuleRelease(fragMod);
WebGPUNative.wgpuShaderModuleRelease(vertMod);
return(_pipeline);
}