On Sat, Jun 29, 2013 at 7:22 AM, Kenneth Graunke <kenn...@whitecape.org> wrote:
> This patch adds texture() for isamplerCubeArray and usamplerCubeArray,
> which were entirely missing.
>
> It also makes texture() with a LOD bias fragment shader specific.  The
> main GLSL specification explicitly says that texturing with LOD bias
> should not be allowed for vertex shaders.
>
> Affects Piglit's ARB_texture_cube_map_array/compiler/tex_bias-01.vert.
> which tries to use bias in a vertex shader.  Currently, it expects this
> to pass (so this patch regresses the test), but I've sent a patch to
> reverse the expected behavior (so this patch would fix the updated test):
> http://lists.freedesktop.org/archives/piglit/2013-June/006123.html

No idea how I missed these.

Reviewed-by: Dave Airlie <airl...@redhat.com>

>
> NOTE: This is a candidate for stable branches.
>
> Cc: Paul Berry <stereotype...@gmail.com>
> Signed-off-by: Kenneth Graunke <kenn...@whitecape.org>
> ---
>  src/glsl/builtins/profiles/ARB_texture_cube_map_array.frag | 6 ++++++
>  src/glsl/builtins/profiles/ARB_texture_cube_map_array.glsl | 3 ++-
>  2 files changed, 8 insertions(+), 1 deletion(-)
>  create mode 100644 src/glsl/builtins/profiles/ARB_texture_cube_map_array.frag
>
> diff --git a/src/glsl/builtins/profiles/ARB_texture_cube_map_array.frag 
> b/src/glsl/builtins/profiles/ARB_texture_cube_map_array.frag
> new file mode 100644
> index 0000000..0d9f4f6
> --- /dev/null
> +++ b/src/glsl/builtins/profiles/ARB_texture_cube_map_array.frag
> @@ -0,0 +1,6 @@
> +#version 130
> +#extension GL_ARB_texture_cube_map_array : enable
> +
> + vec4 texture( samplerCubeArray sampler, vec4 coord, float bias);
> +ivec4 texture(isamplerCubeArray sampler, vec4 coord, float bias);
> +uvec4 texture(usamplerCubeArray sampler, vec4 coord, float bias);
> diff --git a/src/glsl/builtins/profiles/ARB_texture_cube_map_array.glsl 
> b/src/glsl/builtins/profiles/ARB_texture_cube_map_array.glsl
> index 0f53212..73659b3 100644
> --- a/src/glsl/builtins/profiles/ARB_texture_cube_map_array.glsl
> +++ b/src/glsl/builtins/profiles/ARB_texture_cube_map_array.glsl
> @@ -7,7 +7,8 @@ ivec3 textureSize(usamplerCubeArray sampler, int lod);
>  ivec3 textureSize(samplerCubeArrayShadow sampler, int lod);
>
>   vec4 texture( samplerCubeArray sampler, vec4 coord);
> - vec4 texture( samplerCubeArray sampler, vec4 coord, float bias);
> +ivec4 texture(isamplerCubeArray sampler, vec4 coord);
> +uvec4 texture(usamplerCubeArray sampler, vec4 coord);
>  float texture( samplerCubeArrayShadow sampler, vec4 P, float compare);
>
>   vec4 textureGrad( samplerCubeArray sampler, vec4 P, vec3 dPdx, vec3 dPdy);
> --
> 1.8.3.1
>
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