Attachment 105762 Details for Bug 83506 – Test case

Test case

row-major-matrix-inside-array-of-struct.shader_test (text/plain), 1.06 KB, created by Ian Romanick on 2014-09-04 18:13:56 UTC

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Creator: Ian Romanick

Created: 2014-09-04 18:13:56 UTC

Size: 1.06 KB

patch

obsolete

>[require]
>GLSL >= 1.30
>GL_ARB_uniform_buffer_object
>
>[vertex shader]
>#extension GL_ARB_uniform_buffer_object: require
>
>/* Setting the COLUMN_MAJOR define will cause the test to pass.  The problem
> * appears to be that the i965 backend generates the load of s[1].bv2.x from
> * offset 80 even when m41_1 is row-major.  When m41_1 is row-major,
> * s[1].bv2.x should be at offset 64.  This is correctly reported via the GL
> * API.
> */
>//#define COLUMN_MAJOR
>
>struct S {
>    bvec2       bv2;
>    mat4x2      m42_1;
>};
>
>layout(std140
>#ifndef COLUMN_MAJOR
>       , row_major
>#endif
>      ) uniform UB1 {
>    S[2] s;
>};
>
>flat out int vertex_pass;
>in vec4 piglit_vertex;
>
>void main()
>{
>    vertex_pass = int(s[1].bv2.x);
>    gl_Position = piglit_vertex;
>}
>
>[fragment shader]
>out vec4 piglit_fragcolor;
>flat in int vertex_pass;
>
>void main()
>{
>    piglit_fragcolor = vec4(1 - vertex_pass, vertex_pass, 0, 1);
>}
>
>[test]
>active uniform s[1].m42_1 GL_UNIFORM_OFFSET 64
>active uniform s[1].m42_1 GL_UNIFORM_IS_ROW_MAJOR 1
>
>uniform ivec2 s[1].bv2 1 0
>
>draw rect -1 -1 2 2
>probe all rgba 0.0 1.0 0.0 1.0

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