shaders: add skia shaders

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

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

1 files changed, 92 insertions, 0 deletions

diff --git a/shaders/skia/1-397.shader_test b/shaders/skia/1-397.shader_test
new file mode 100644
index 0000000..3b0319d
--- /dev/null
+++ b/shaders/skia/1-397.shader_test
@@ -0,0 +1,92 @@
+[require]
+GLSL >= 1.40
+
+[fragment shader]
+#version 140
+
+out vec4 sk_FragColor;
+uniform vec4 uleftBorderColor_Stage1_c0_c0;
+uniform vec4 urightBorderColor_Stage1_c0_c0;
+uniform vec4 uscale0_1_Stage1_c0_c0_c1_c0;
+uniform vec4 uscale2_3_Stage1_c0_c0_c1_c0;
+uniform vec4 uscale4_5_Stage1_c0_c0_c1_c0;
+uniform vec4 uscale6_7_Stage1_c0_c0_c1_c0;
+uniform vec4 ubias0_1_Stage1_c0_c0_c1_c0;
+uniform vec4 ubias2_3_Stage1_c0_c0_c1_c0;
+uniform vec4 ubias4_5_Stage1_c0_c0_c1_c0;
+uniform vec4 ubias6_7_Stage1_c0_c0_c1_c0;
+uniform vec4 uthresholds1_7_Stage1_c0_c0_c1_c0;
+uniform vec4 uthresholds9_13_Stage1_c0_c0_c1_c0;
+noperspective in vec2 vTransformedCoords_0_Stage0;
+flat in vec4 vcolor_Stage0;
+vec4 LinearGradientLayout_Stage1_c0_c0_c0_c0(vec4 _input) {
+    vec4 _output;
+    float t = vTransformedCoords_0_Stage0.x + 9.9999997473787516e-06;
+    _output = vec4(t, 1.0, 0.0, 0.0);
+    return _output;
+}
+vec4 UnrolledBinaryGradientColorizer_Stage1_c0_c0_c1_c0(vec4 _input) {
+    vec4 _output;
+    float t = _input.x;
+    vec4 scale, bias;
+    {
+        if (t < uthresholds1_7_Stage1_c0_c0_c1_c0.y) {
+            if (t < uthresholds1_7_Stage1_c0_c0_c1_c0.x) {
+                scale = uscale0_1_Stage1_c0_c0_c1_c0;
+                bias = ubias0_1_Stage1_c0_c0_c1_c0;
+            } else {
+                scale = uscale2_3_Stage1_c0_c0_c1_c0;
+                bias = ubias2_3_Stage1_c0_c0_c1_c0;
+            }
+        } else {
+            if (t < uthresholds1_7_Stage1_c0_c0_c1_c0.z) {
+                scale = uscale4_5_Stage1_c0_c0_c1_c0;
+                bias = ubias4_5_Stage1_c0_c0_c1_c0;
+            } else {
+                scale = uscale6_7_Stage1_c0_c0_c1_c0;
+                bias = ubias6_7_Stage1_c0_c0_c1_c0;
+            }
+        }
+    }
+    _output = t * scale + bias;
+    return _output;
+}
+vec4 ClampedGradientEffect_Stage1_c0_c0(vec4 _input) {
+    vec4 _output;
+    vec4 t = LinearGradientLayout_Stage1_c0_c0_c0_c0(vec4(1.0));
+    if (t.x < 0.0) {
+        _output = uleftBorderColor_Stage1_c0_c0;
+    } else if (t.x > 1.0) {
+        _output = urightBorderColor_Stage1_c0_c0;
+    } else {
+        _output = UnrolledBinaryGradientColorizer_Stage1_c0_c0_c1_c0(t);
+    }
+    return _output;
+}
+void main() {
+    vec4 output_Stage1;
+    {
+        output_Stage1 = ClampedGradientEffect_Stage1_c0_c0(vec4(1.0, 1.0, 1.0, 1.0));
+    }
+    {
+        sk_FragColor = output_Stage1;
+    }
+}
+
+[vertex shader]
+#version 140
+
+uniform vec4 sk_RTAdjust;
+uniform mat3 uCoordTransformMatrix_0_Stage0;
+in vec2 position;
+in vec4 color;
+in vec2 localCoord;
+noperspective out vec2 vTransformedCoords_0_Stage0;
+flat out vec4 vcolor_Stage0;
+void main() {
+    vTransformedCoords_0_Stage0 = (uCoordTransformMatrix_0_Stage0 * vec3(localCoord, 1.0)).xy;
+    vcolor_Stage0 = color;
+    gl_Position = vec4(position.x, position.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);
+}
+