pathfinder/resources/shaders/metal/tile.vs.metal

// Automatically generated from files in pathfinder/shaders/. Do not edit!
#include <metal_stdlib>
#include <simd/simd.h>

using namespace metal;

struct spvDescriptorSetBuffer0
{
    constant float2* uTileSize [[id(0)]];
    constant int2* uTextureMetadataSize [[id(1)]];
    texture2d<float> uTextureMetadata [[id(2)]];
    sampler uTextureMetadataSmplr [[id(3)]];
    constant float4x4* uTransform [[id(4)]];
};

struct main0_out
{
    float3 vMaskTexCoord0 [[user(locn0)]];
    float3 vMaskTexCoord1 [[user(locn1)]];
    float2 vColorTexCoord0 [[user(locn2)]];
    float4 vBaseColor [[user(locn3)]];
    float4 gl_Position [[position]];
};

struct main0_in
{
    int2 aTileOffset [[attribute(0)]];
    int2 aTileOrigin [[attribute(1)]];
    uint2 aMaskTexCoord0 [[attribute(2)]];
    uint2 aMaskTexCoord1 [[attribute(3)]];
    int2 aMaskBackdrop [[attribute(4)]];
    int aColor [[attribute(5)]];
};

vertex main0_out main0(main0_in in [[stage_in]], constant spvDescriptorSetBuffer0& spvDescriptorSet0 [[buffer(0)]])
{
    main0_out out = {};
    float2 tileOrigin = float2(in.aTileOrigin);
    float2 tileOffset = float2(in.aTileOffset);
    float2 position = (tileOrigin + tileOffset) * (*spvDescriptorSet0.uTileSize);
    float2 maskTexCoord0 = (float2(in.aMaskTexCoord0) + tileOffset) / float2(256.0);
    float2 maskTexCoord1 = (float2(in.aMaskTexCoord1) + tileOffset) / float2(256.0);
    float2 textureMetadataScale = float2(1.0) / float2((*spvDescriptorSet0.uTextureMetadataSize));
    float2 metadataEntryCoord = float2(int2((in.aColor % 128) * 4, in.aColor / 128));
    float2 colorTexMatrix0Coord = (metadataEntryCoord + float2(0.5)) * textureMetadataScale;
    float2 colorTexOffsetsCoord = (metadataEntryCoord + float2(1.5, 0.5)) * textureMetadataScale;
    float2 baseColorCoord = (metadataEntryCoord + float2(2.5, 0.5)) * textureMetadataScale;
    float4 colorTexMatrix0 = spvDescriptorSet0.uTextureMetadata.sample(spvDescriptorSet0.uTextureMetadataSmplr, colorTexMatrix0Coord, level(0.0));
    float4 colorTexOffsets = spvDescriptorSet0.uTextureMetadata.sample(spvDescriptorSet0.uTextureMetadataSmplr, colorTexOffsetsCoord, level(0.0));
    float4 baseColor = spvDescriptorSet0.uTextureMetadata.sample(spvDescriptorSet0.uTextureMetadataSmplr, baseColorCoord, level(0.0));
    out.vColorTexCoord0 = (float2x2(float2(colorTexMatrix0.xy), float2(colorTexMatrix0.zw)) * position) + colorTexOffsets.xy;
    out.vMaskTexCoord0 = float3(maskTexCoord0, float(in.aMaskBackdrop.x));
    out.vMaskTexCoord1 = float3(maskTexCoord1, float(in.aMaskBackdrop.y));
    out.vBaseColor = baseColor;
    out.gl_Position = (*spvDescriptorSet0.uTransform) * float4(position, 0.0, 1.0);
    return out;
}