65 lines
2.6 KiB
Metal
65 lines
2.6 KiB
Metal
// Automatically generated from files in pathfinder/shaders/. Do not edit!
|
|
#pragma clang diagnostic ignored "-Wmissing-prototypes"
|
|
|
|
#include <metal_stdlib>
|
|
#include <simd/simd.h>
|
|
|
|
using namespace metal;
|
|
|
|
struct spvDescriptorSetBuffer0
|
|
{
|
|
texture2d<float> uStencilTexture [[id(0)]];
|
|
sampler uStencilTextureSmplr [[id(1)]];
|
|
texture2d<float> uPaintTexture [[id(2)]];
|
|
sampler uPaintTextureSmplr [[id(3)]];
|
|
constant float2* uFramebufferSize [[id(4)]];
|
|
texture2d<float> uDest [[id(5)]];
|
|
sampler uDestSmplr [[id(6)]];
|
|
};
|
|
|
|
struct main0_out
|
|
{
|
|
float4 oFragColor [[color(0)]];
|
|
};
|
|
|
|
struct main0_in
|
|
{
|
|
float2 vColorTexCoord [[user(locn0)]];
|
|
float2 vMaskTexCoord [[user(locn1)]];
|
|
float vOpacity [[user(locn2)]];
|
|
};
|
|
|
|
float4 sampleSrcColor(thread texture2d<float> uStencilTexture, thread const sampler uStencilTextureSmplr, thread float2& vMaskTexCoord, thread texture2d<float> uPaintTexture, thread const sampler uPaintTextureSmplr, thread float2& vColorTexCoord, thread float& vOpacity)
|
|
{
|
|
float coverage = uStencilTexture.sample(uStencilTextureSmplr, vMaskTexCoord).x;
|
|
float4 srcRGBA = uPaintTexture.sample(uPaintTextureSmplr, vColorTexCoord);
|
|
return float4(srcRGBA.xyz, (srcRGBA.w * coverage) * vOpacity);
|
|
}
|
|
|
|
float4 sampleDestColor(thread float4& gl_FragCoord, thread float2 uFramebufferSize, thread texture2d<float> uDest, thread const sampler uDestSmplr)
|
|
{
|
|
float2 destTexCoord = gl_FragCoord.xy / uFramebufferSize;
|
|
return uDest.sample(uDestSmplr, destTexCoord);
|
|
}
|
|
|
|
float4 blendColors(thread const float4& destRGBA, thread const float4& srcRGBA, thread const float3& blendedRGB)
|
|
{
|
|
return float4(((srcRGBA.xyz * (srcRGBA.w * (1.0 - destRGBA.w))) + (blendedRGB * (srcRGBA.w * destRGBA.w))) + (destRGBA.xyz * ((1.0 - srcRGBA.w) * destRGBA.w)), 1.0);
|
|
}
|
|
|
|
fragment main0_out main0(main0_in in [[stage_in]], constant spvDescriptorSetBuffer0& spvDescriptorSet0 [[buffer(0)]], float4 gl_FragCoord [[position]])
|
|
{
|
|
main0_out out = {};
|
|
float4 srcRGBA = sampleSrcColor(spvDescriptorSet0.uStencilTexture, spvDescriptorSet0.uStencilTextureSmplr, in.vMaskTexCoord, spvDescriptorSet0.uPaintTexture, spvDescriptorSet0.uPaintTextureSmplr, in.vColorTexCoord, in.vOpacity);
|
|
float4 destRGBA = sampleDestColor(gl_FragCoord, (*spvDescriptorSet0.uFramebufferSize), spvDescriptorSet0.uDest, spvDescriptorSet0.uDestSmplr);
|
|
float3 dest = destRGBA.xyz;
|
|
float3 src = srcRGBA.xyz;
|
|
float3 blended = (dest + src) - ((dest * src) * 2.0);
|
|
float4 param = destRGBA;
|
|
float4 param_1 = srcRGBA;
|
|
float3 param_2 = blended;
|
|
out.oFragColor = blendColors(param, param_1, param_2);
|
|
return out;
|
|
}
|
|
|