[Piglit] [PATCH] glsl-1.10: exercise variable-indexed arrays

[Jose Fonseca]

On 14/07/15 19:56, Brian Paul wrote:
> ---
>   .../glsl-1.10/execution/temp_arrays.shader_test    | 57 ++++++++++++++++++++++
>   1 file changed, 57 insertions(+)
>   create mode 100644 tests/spec/glsl-1.10/execution/temp_arrays.shader_test
>
> diff --git a/tests/spec/glsl-1.10/execution/temp_arrays.shader_test b/tests/spec/glsl-1.10/execution/temp_arrays.shader_test
> new file mode 100644
> index 0000000..fc81473
> --- /dev/null
> +++ b/tests/spec/glsl-1.10/execution/temp_arrays.shader_test
> @@ -0,0 +1,57 @@
> +[require]
> +GLSL >= 1.10
> +
> +[vertex shader]
> +
> +/**
> + * This test exercises arrays indexed with a variable.
> + * We test with two arrays to be sure at least one is positioned
> + * above TEMP[0].
> + */
> +
> +uniform float one;
> +uniform int writeIndex;
> +uniform int readIndex;
> +varying vec4 color;
> +void main()
> +{
> +	// Setup two arrays
> +	vec4 a1[5], a2[5];
> +
> +	a1[0] = vec4(0.0, 0.0, 0.0, 0.0);
> +	a1[1] = vec4(0.0, 0.0, 0.0, 0.0);
> +	a1[2] = vec4(0.0, 0.0, 0.0, 0.0);
> +	a1[3] = vec4(0.0, 0.0, 0.0, 0.0);
> +	a1[4] = vec4(0.0, 0.0, 0.0, 0.0);
> +
> +	a2[0] = vec4(0.0, 0.0, 0.0, 0.0);
> +	a2[1] = vec4(0.0, 0.0, 0.0, 0.0);
> +	a2[2] = vec4(0.0, 0.0, 0.0, 0.0);
> +	a2[3] = vec4(0.0, 0.0, 0.0, 0.0);
> +	a2[4] = vec4(0.0, 0.0, 0.25, 0.0);
> +
> +	gl_Position = gl_Vertex;
> +
> +	// write to the arrays
> +	a1[writeIndex] = vec4(1.0, 0.25, 0.0, 1.0);
> +	a2[writeIndex] = vec4(1.0, 0.25, 0.75, 1.0);
> +
> +	// add array elements
> +	color = a1[readIndex] + a2[readIndex] + a2[4];
> +}
> +
> +[fragment shader]
> +varying vec4 color;
> +void main()
> +{
> +	gl_FragColor = color;
> +}
> +
> +[test]
> +uniform int readIndex 1
> +uniform int writeIndex 1
> +draw rect -1 -1 2 2
> +relative probe rgb (0.0, 0.0) (1.0, 0.5, 1.0, 1.0)
> +relative probe rgb (1.0, 0.0) (1.0, 0.5, 1.0, 1.0)
> +relative probe rgb (0.0, 1.0) (1.0, 0.5, 1.0, 1.0)
> +relative probe rgb (1.0, 1.0) (1.0, 0.5, 1.0, 1.0)
>

Reviewed-by: Jose Fonseca <jfonseca at vmware.com>