diff options
Diffstat (limited to 'chromium/third_party/glslang/src/Test/specExamples.frag')
| -rw-r--r-- | chromium/third_party/glslang/src/Test/specExamples.frag | 237 |
1 files changed, 237 insertions, 0 deletions
diff --git a/chromium/third_party/glslang/src/Test/specExamples.frag b/chromium/third_party/glslang/src/Test/specExamples.frag new file mode 100644 index 00000000000..177a0a799e5 --- /dev/null +++ b/chromium/third_party/glslang/src/Test/specExamples.frag @@ -0,0 +1,237 @@ +#version 430 + +#extension GL_3DL_array_objects : enable + +int a = 0xffffffff; // 32 bits, a gets the value -1 +int b = 0xffffffffU; // ERROR: can't convert uint to int +uint c = 0xffffffff; // 32 bits, c gets the value 0xFFFFFFFF +uint d = 0xffffffffU; // 32 bits, d gets the value 0xFFFFFFFF +int e = -1; // the literal is "1", then negation is performed, + // and the resulting non-literal 32-bit signed + // bit pattern of 0xFFFFFFFF is assigned, giving e + // the value of -1. +uint f = -1u; // the literal is "1u", then negation is performed, + // and the resulting non-literal 32-bit unsigned + // bit pattern of 0xFFFFFFFF is assigned, giving f + // the value of 0xFFFFFFFF. +int g = 3000000000; // a signed decimal literal taking 32 bits, + // setting the sign bit, g gets -1294967296 +int h = 0xA0000000; // okay, 32-bit signed hexadecimal +int i = 5000000000; // ERROR: needs more than 32 bits +int j = 0xFFFFFFFFF; // ERROR: needs more that 32 bits +int k = 0x80000000; // k gets -2147483648 == 0x80000000 +int l = 2147483648; // l gets -2147483648 (the literal set the sign bit) + +float fa, fb = 1.5; // single-precision floating-point +double fc, fd = 2.0LF; // double-precision floating-point + +vec2 texcoord1, texcoord2; +vec3 position; +vec4 myRGBA; +ivec2 textureLookup; +bvec3 less; + +mat2 mat2D; +mat3 optMatrix; +mat4 view, projection; +mat4x4 view; // an alternate way of declaring a mat4 +mat3x2 m; // a matrix with 3 columns and 2 rows +dmat4 highPrecisionMVP; +dmat2x4 dm; + +struct light { + float intensity; + vec3 position; +} lightVar; + +struct S { float f; }; + +struct T { + //S; // Error: anonymous structures disallowed + //struct { ... }; // Error: embedded structures disallowed + S s; // Okay: nested structures with name are allowed +}; + +float frequencies[3]; +uniform vec4 lightPosition[4]; +light lights[]; +const int numLights = 2; +light lights[numLights]; + +in vec3 normal; +centroid in vec2 TexCoord; +invariant centroid in vec4 Color; +noperspective in float temperature; +flat in vec3 myColor; +noperspective centroid in vec2 myTexCoord; + +uniform vec4 lightPosition; +uniform vec3 color = vec3(0.7, 0.7, 0.2); // value assigned at link time + +in Material { + smooth in vec4 Color1; // legal, input inside in block + smooth vec4 Color2; // legal, 'in' inherited from 'in Material' + vec2 TexCoordA; // legal, TexCoord is an input + uniform float Atten; // illegal, mismatched storage qualifier + +}; + +in Light { + vec4 LightPos; + vec3 LightColor; +}; +in ColoredTexture { + vec4 Color; + vec2 TexCoord; +} Materiala; // instance name +vec3 Color; // different Color than Material.Color + +in vec4 gl_FragCoord; // redeclaration that changes nothing is allowed + +// All the following are allowed redeclaration that change behavior +layout(origin_upper_left) in vec4 gl_FragCoord; +layout(pixel_center_integer) in vec4 gl_FragCoord; +layout(origin_upper_left, pixel_center_integer) in vec4 gl_FragCoord; + +layout(early_fragment_tests) in; + +// compute shader: +layout (local_size_x = 32, local_size_y = 32) in; +layout (local_size_x = 8) in; + +layout(location = 3) out vec4 color; +layout(location = 3, index = 1) out vec4 factor; +layout(location = 2) out vec4 colors[3]; + +layout (depth_greater) out float gl_FragDepth; + +// redeclaration that changes nothing is allowed +out float gl_FragDepth; + +// assume it may be modified in any way +layout (depth_any) out float gl_FragDepth; + +// assume it may be modified such that its value will only increase +layout (depth_greater) out float gl_FragDepth; + +// assume it may be modified such that its value will only decrease +layout (depth_less) out float gl_FragDepth; + +// assume it will not be modified +layout (depth_unchanged) out float gl_FragDepth; + +in vec4 gl_Color; // predeclared by the fragment language +flat in vec4 gl_Color; // redeclared by user to be flat + + +float[5] foo(float[5]) +{ + return float[5](3.4, 4.2, 5.0, 5.2, 1.1); +} + +precision highp float; +precision highp int; +precision mediump int; +precision highp float; + +void main() +{ + { + float a[5] = float[5](3.4, 4.2, 5.0, 5.2, 1.1); + } + { + float a[5] = float[](3.4, 4.2, 5.0, 5.2, 1.1); // same thing + } + { + vec4 a[3][2]; // size-3 array of size-2 array of vec4 + vec4[2] a1[3]; // size-3 array of size-2 array of vec4 + vec4[3][2] a2; // size-3 array of size-2 array of vec4 + vec4 b[2] = vec4[2](vec4(0.0), vec4(0.1)); + vec4[3][2] a3 = vec4[3][2](b, b, b); // constructor + void foo(vec4[3][2]); // prototype with unnamed parameter + vec4 a4[3][2] = {vec4[2](vec4(0.0), vec4(1.0)), + vec4[2](vec4(0.0), vec4(1.0)), + vec4[2](vec4(0.0), vec4(1.0)) }; + } + { + float a[5]; + { + float b[] = a; // b is explicitly size 5 + } + { + float b[5] = a; // means the same thing + } + { + float b[] = float[](1,2,3,4,5); // also explicitly sizes to 5 + } + a.length(); // returns 5 + } + { + vec4 a[3][2]; + a.length(); // this is 3 + a[x].length(); // this is 2 + } + // for an array b containing a member array a: + b[++x].a.length(); // b is never dereferenced, but “++x” is evaluated + + // for an array s of a shader storage object containing a member array a: + s[x].a.length(); // s is dereferenced; x needs to be a valid index + // + //All of the following declarations result in a compile-time error. + //float a[2] = { 3.4, 4.2, 5.0 }; // illegal + //vec2 b = { 1.0, 2.0, 3.0 }; // illegal + //mat3x3 c = { vec3(0.0), vec3(1.0), vec3(2.0), vec3(3.0) }; // illegal + //mat2x2 d = { 1.0, 0.0, 0.0, 1.0 }; // illegal, can't flatten nesting + //struct { + // float a; + // int b; + //} e = { 1.2, 2, 3 }; // illegal + + struct { + float a; + int b; + } e = { 1.2, 2 }; // legal, all types match + + struct { + float a; + int b; + } e = { 1, 3 }; // legal, first initializer is converted + + //All of the following declarations result in a compile-time error. + //int a = true; // illegal + //vec4 b[2] = { vec4(0.0), 1.0 }; // illegal + //mat4x2 c = { vec3(0.0), vec3(1.0) }; // illegal + + //struct S1 { + // vec4 a; + // vec4 b; + //}; + + //struct { + // float s; + // float t; + //} d[] = { S1(vec4(0.0), vec4(1.1)) }; // illegal + + { + float a[] = float[](3.4, 4.2, 5.0, 5.2, 1.1); + float b[] = { 3.4, 4.2, 5.0, 5.2, 1.1 }; + float c[] = a; // c is explicitly size 5 + float d[5] = b; // means the same thing + } + { + const vec3 zAxis = vec3 (0.0, 0.0, 1.0); + const float ceiling = a + b; // a and b not necessarily constants + } + { + in vec4 position; + in vec3 normal; + in vec2 texCoord[4]; + } + { + lowp float color; + out mediump vec2 P; + lowp ivec2 foo(lowp mat3); + highp mat4 m; + } + +} |