diff options
Diffstat (limited to 'chromium/third_party/glslang/src/Test/specExamples.vert')
| -rw-r--r-- | chromium/third_party/glslang/src/Test/specExamples.vert | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/chromium/third_party/glslang/src/Test/specExamples.vert b/chromium/third_party/glslang/src/Test/specExamples.vert new file mode 100644 index 00000000000..30f61042d9d --- /dev/null +++ b/chromium/third_party/glslang/src/Test/specExamples.vert @@ -0,0 +1,196 @@ +#version 430 + +#extension GL_3DL_array_objects : enable + +out Vertex { + vec4 Position; // API transform/feedback will use “Vertex.Position” + vec2 Texture; +} Coords; // shader will use “Coords.Position” + +out Vertex2 { + vec4 Color; // API will use “Color” +}; + +uniform Transform { // API uses “Transform[2]” to refer to instance 2 + mat4 ModelViewMatrix; + mat4 ModelViewProjectionMatrix; + vec4 a[]; // array will get implicitly sized + float Deformation; +} transforms[4]; + +layout(location = 3) in vec4 normal; +layout(location = 6) in vec4 colors[3]; +layout(location = 9) in mat4 transforms2[2]; + +layout(location = 3) struct S { + vec3 a1; + mat2 b; + vec4 c[2]; +} s; + +layout(triangles, invocations = 6) in; + +layout(lines) in; // legal for Color2, input size is 2, matching Color2 + +layout(triangle_strip, max_vertices = 60) out; // order does not matter +layout(max_vertices = 60) out; // redeclaration okay +layout(triangle_strip) out; // redeclaration okay +//layout(points) out; // error, contradicts triangle_strip +//layout(max_vertices = 30) out; // error, contradicts 60 + +layout(stream = 1) out; + +layout(stream=1) out; // default is now stream 1 +out vec4 var1; // var1 gets default stream (1) +layout(stream=2) out Block1 { // "Block1" belongs to stream 2 + layout(stream=2) vec4 var2; // redundant block member stream decl + layout(stream=3) vec2 var3; // ILLEGAL (must match block stream) + vec3 var4; // belongs to stream 2 +}; +layout(stream=0) out; // default is now stream 0 +out vec4 var5; // var5 gets default stream (0) +out Block2 { // "Block2" gets default stream (0) + vec4 var6; +}; +layout(stream=3) out vec4 var7; // var7 belongs to stream 3 + +layout(shared, column_major) uniform; +layout(shared, column_major) buffer; + +layout(row_major, column_major) + +layout(shared, row_major) uniform; // default is now shared and row_major + +layout(std140) uniform Transform2 { // layout of this block is std140 + mat4 M1; // row_major + layout(column_major) mat4 M2; // column major + mat3 N1; // row_major +}; + +layout(column_major) uniform T3 { // shared and column_major + mat4 M13; // column_major + layout(row_major) mat4 m14; // row major + mat3 N12; // column_major +}; + +// in one compilation unit... +layout(binding=3) uniform sampler2D s17; // s bound to unit 3 + +// in another compilation unit... +uniform sampler2D s17; // okay, s still bound at 3 + +// in another compilation unit... +//layout(binding=4) uniform sampler2D s; // ERROR: contradictory bindings + +layout (binding = 2, offset = 4) uniform atomic_uint a2; + +layout (binding = 2) uniform atomic_uint bar; + +layout (binding = 2, offset = 4) uniform atomic_uint; + +layout (binding = 2) uniform atomic_uint bar; // offset is 4 +layout (offset = 8) uniform atomic_uint bar23; // error, no default binding + +layout (binding=3, offset=4) uniform atomic_uint a2; // offset = 4 +layout (binding=2) uniform atomic_uint b2; // offset = 0 +layout (binding=3) uniform atomic_uint c2; // offset = 8 +layout (binding=2) uniform atomic_uint d2; // offset = 4 + +//layout (offset=4) // error, must include binding +//layout (binding=1, offset=0) a; // okay +//layout (binding=2, offset=0) b; // okay +//layout (binding=1, offset=0) c; // error, offsets must not be shared +// // between a and c +//layout (binding=1, offset=2) d; // error, overlaps offset 0 of a + +flat in vec4 gl_FrontColor; // input to geometry shader, no “gl_in[]” +flat out vec4 gl_FrontColor; // output from geometry shader + +invariant gl_Position; // make existing gl_Position be invariant + +out vec3 ColorInv; +invariant ColorIvn; // make existing Color be invariant + +invariant centroid out vec3 Color4; +precise out vec4 position; + +out vec3 Color5; +precise Color5; // make existing Color be precise +in vec4 a, b, c, d; +precise out vec4 v; + +coherent buffer Block { + readonly vec4 member1; + vec4 member2; +}; + +buffer Block2a { + coherent readonly vec4 member1A; + coherent vec4 member2A; +}; + +shared vec4 shv; + +vec4 funcA(restrict image2D a) { } + +vec4 funcB(image2D a) { } +layout(rgba32f) uniform image2D img1; +layout(rgba32f) coherent uniform image2D img2; + +float func(float e, float f, float g, float h) +{ + return (e*f) + (g*h); // no constraint on order or + // operator consistency +} + +float func2(float e, float f, float g, float h) +{ + precise float result = (e*f) + (g*h); // ensures same precision for + // the two multiplies + return result; +} + +float func3(float i, float j, precise out float k) +{ + k = i * i + j; // precise, due to <k> declaration +} + +void main() +{ + vec3 r = vec3(a * b); // precise, used to compute v.xyz + vec3 s = vec3(c * d); // precise, used to compute v.xyz + v.xyz = r + s; // precise + v.w = (a.w * b.w) + (c.w * d.w); // precise + v.x = func(a.x, b.x, c.x, d.x); // values computed in func() + // are NOT precise + v.x = func2(a.x, b.x, c.x, d.x); // precise! + func3(a.x * b.x, c.x * d.x, v.x); // precise! + + funcA(img1); // OK, adding "restrict" is allowed + funcB(img2); // illegal, stripping "coherent" is not + + { + struct light { + float intensity; + vec3 position; + }; + + light lightVar = light(3.0, vec3(1.0, 2.0, 3.0)); + } + { + const float c[3] = float[3](5.0, 7.2, 1.1); + const float d[3] = float[](5.0, 7.2, 1.1); + + float g; + float a[5] = float[5](g, 1, g, 2.3, g); + float b[3]; + + b = float[3](g, g + 1.0, g + 2.0); + } + { + vec4 b[2] = { vec4(1.0), vec4(1.0) }; + vec4[3][2](b, b, b); // constructor + vec4[][2](b, b, b); // constructor, valid, size deduced + vec4[3][](b, b, b); // compile-time error, invalid type constructed + } +} |