src/sksl/sksl_fp_raw.sksl

# This is the raw input file that (along with GrSharedEnums.h) is used to generate
# sksl_fp.sksl.

// defines built-in interfaces supported by SkiaSL fragment shaders

layout(builtin=15) in float4 sk_FragCoord;
layout(builtin=20) out int sk_SampleMask[1];

// 9999 is a temporary value that causes us to ignore these declarations beyond
// adding them to the symbol table. This works fine in GLSL (where they do not
// require any further handling) but will fail in SPIR-V. We'll have a better
// solution for this soon.
layout(builtin=9999) float4 gl_LastFragData[1];
layout(builtin=9999) half4 gl_LastFragColor;
layout(builtin=9999) half4 gl_LastFragColorARM;
layout(builtin=9999) half4 gl_SecondaryFragColorEXT;

layout(builtin=10011) half sk_Width;
layout(builtin=10012) half sk_Height;

half4 sample(fragmentProcessor fp);
half4 sample(fragmentProcessor fp, float3x3 transform);
half4 sample(fragmentProcessor fp, float2 coords);
half4 sample(fragmentProcessor fp, half4 input);
half4 sample(fragmentProcessor fp, half4 input, float3x3 transform);
half4 sample(fragmentProcessor fp, half4 input, float2 coords);