shaders: add skia shaders

Add shaders extracted from skia's unit tests[1]

[1] https://skia.org/dev/testing/testing

1 files changed, 67 insertions, 0 deletions

diff --git a/shaders/skia/40-67.shader_test b/shaders/skia/40-67.shader_test
new file mode 100644
index 0000000..3cd50de
--- /dev/null
+++ b/shaders/skia/40-67.shader_test
@@ -0,0 +1,67 @@
+[require]
+GLSL >= 1.40
+
+[fragment shader]
+#version 140
+
+out vec4 sk_FragColor;
+uniform vec4 uniformColor_Stage1_c0_c0;
+uniform sampler2D uTextureSampler_0_Stage1;
+noperspective in vec4 vcolor_Stage0;
+noperspective in vec2 vTransformedCoords_0_Stage0;
+vec4 TextureEffect_Stage1_c0_c0_c0_c0_c0_c0(vec4 _input) {
+    vec4 _output;
+    _output = texture(uTextureSampler_0_Stage1, vTransformedCoords_0_Stage0) * _input;
+    return _output;
+}
+vec4 OverrideInputFragmentProcessor_Stage1_c0_c0_c0_c0(vec4 _input) {
+    vec4 _output;
+    _output = TextureEffect_Stage1_c0_c0_c0_c0_c0_c0(vec4(1.0, 1.0, 1.0, 1.0));
+    return _output;
+}
+vec4 OverrideInputFragmentProcessor_Stage1_c0_c0(vec4 _input) {
+    vec4 _output;
+    vec4 constColor;
+    {
+        constColor = uniformColor_Stage1_c0_c0;
+    }
+    _output = OverrideInputFragmentProcessor_Stage1_c0_c0_c0_c0(constColor);
+    return _output;
+}
+vec4 blend_xor(vec4 src, vec4 dst) {
+    return (1.0 - dst.w) * src + (1.0 - src.w) * dst;
+}
+void main() {
+    vec4 outputColor_Stage0;
+    {
+        outputColor_Stage0 = vcolor_Stage0;
+    }
+    vec4 output_Stage1;
+    {
+        output_Stage1 = blend_xor(OverrideInputFragmentProcessor_Stage1_c0_c0(vec4(1.0)), outputColor_Stage0);
+    }
+    {
+        sk_FragColor = output_Stage1;
+    }
+}
+
+[vertex shader]
+#version 140
+
+uniform vec4 sk_RTAdjust;
+uniform mat3 uViewM_Stage0;
+uniform mat3 uCoordTransformMatrix_0_Stage0;
+in vec2 inPosition;
+in vec4 inColor;
+in vec2 inLocalCoord;
+noperspective out vec4 vcolor_Stage0;
+noperspective out vec2 vTransformedCoords_0_Stage0;
+void main() {
+    vec4 color = inColor;
+    vcolor_Stage0 = color;
+    vec2 pos2 = (uViewM_Stage0 * vec3(inPosition, 1.0)).xy;
+    vTransformedCoords_0_Stage0 = (uCoordTransformMatrix_0_Stage0 * vec3(inLocalCoord, 1.0)).xy;
+    gl_Position = vec4(pos2.x, pos2.y, 0.0, 1.0);
+    gl_Position = vec4(gl_Position.xy * sk_RTAdjust.xz + gl_Position.ww * sk_RTAdjust.yw, 0.0, gl_Position.w);
+}
+