Test/spv.khrComputeShaderDerivatives.comp

#version 450
#extension GL_KHR_compute_shader_derivatives : require

layout(local_size_x = 2, local_size_y = 2) in;
layout(derivative_group_quadsKHR) in;

layout(binding = 0) uniform sampler2D tex;

layout(binding = 1, std430) buffer block {
  float fDerivativeX;
  float fDerivativeY;
  float fDerivativeWidth;
  float fCoarseDerivativeX;
  float fCoarseDerivativeY;
  float fCoarseDerivativeWidth;
  float fFineDerivativeX;
  float fFineDerivativeY;
  float fFineDerivativeWidth;

  float fX;
  float fY;

  vec2 v2DerivativeX;
  vec2 v2DerivativeY;
  vec2 v2DerivativeWidth;
  vec2 v2CoarseDerivativeX;
  vec2 v2CoarseDerivativeY;
  vec2 v2CoarseDerivativeWidth;
  vec2 v2FineDerivativeX;
  vec2 v2FineDerivativeY;
  vec2 v2FineDerivativeWidth;

  vec2 v2X;
  vec2 v2Y;

  vec3 v3DerivativeX;
  vec3 v3DerivativeY;
  vec3 v3DerivativeWidth;
  vec3 v3CoarseDerivativeX;
  vec3 v3CoarseDerivativeY;
  vec3 v3CoarseDerivativeWidth;
  vec3 v3FineDerivativeX;
  vec3 v3FineDerivativeY;
  vec3 v3FineDerivativeWidth;

  vec3 v3X;
  vec3 v3Y;

  vec4 v4DerivativeX;
  vec4 v4DerivativeY;
  vec4 v4DerivativeWidth;
  vec4 v4CoarseDerivativeX;
  vec4 v4CoarseDerivativeY;
  vec4 v4CoarseDerivativeWidth;
  vec4 v4FineDerivativeX;
  vec4 v4FineDerivativeY;
  vec4 v4FineDerivativeWidth;

  vec4 v4X;
  vec4 v4Y;

  vec4 color;
  vec2 lod;
};

void main()
{
    fDerivativeX = dFdx(fX);
    fDerivativeY = dFdy(fY);
    fDerivativeWidth = fwidth(fX);
    fCoarseDerivativeX = dFdxCoarse(fX);
    fCoarseDerivativeY = dFdyCoarse(fY);
    fCoarseDerivativeWidth = fwidthCoarse(fX);
    fFineDerivativeX = dFdxFine(fX);
    fFineDerivativeY = dFdyFine(fY);
    fFineDerivativeWidth = fwidthFine(fX);

    v2DerivativeX = dFdx(v2X);
    v2DerivativeY = dFdy(v2Y);
    v2DerivativeWidth = fwidth(v2X);
    v2CoarseDerivativeX = dFdxCoarse(v2X);
    v2CoarseDerivativeY = dFdyCoarse(v2Y);
    v2CoarseDerivativeWidth = fwidthCoarse(v2X);
    v2FineDerivativeX = dFdxFine(v2X);
    v2FineDerivativeY = dFdyFine(v2Y);
    v2FineDerivativeWidth = fwidthFine(v2X);

    v3DerivativeX = dFdx(v3X);
    v3DerivativeY = dFdy(v3Y);
    v3DerivativeWidth = fwidth(v3X);
    v3CoarseDerivativeX = dFdxCoarse(v3X);
    v3CoarseDerivativeY = dFdyCoarse(v3Y);
    v3CoarseDerivativeWidth = fwidthCoarse(v3X);
    v3FineDerivativeX = dFdxFine(v3X);
    v3FineDerivativeY = dFdyFine(v3Y);
    v3FineDerivativeWidth = fwidthFine(v3X);

    v4DerivativeX = dFdx(v4X);
    v4DerivativeY = dFdy(v4Y);
    v4DerivativeWidth = fwidth(v4X);
    v4CoarseDerivativeX = dFdxCoarse(v4X);
    v4CoarseDerivativeY = dFdyCoarse(v4Y);
    v4CoarseDerivativeWidth = fwidthCoarse(v4X);
    v4FineDerivativeX = dFdxFine(v4X);
    v4FineDerivativeY = dFdyFine(v4Y);
    v4FineDerivativeWidth = fwidthFine(v4X);

    color = texture(tex, vec2(0.5), 0.25);
    lod = textureQueryLod(tex, vec2(0.5));
}