[Piglit] [PATCH] texture-integer-glsl130: fix random failures with wrong expected alpha values

[Jose Fonseca]

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

----- Original Message -----
> From: Roland Scheidegger <sroland at vmware.com>
> 
> The logic failed whenever the random number was 0 for formats which
> don't have
> an alpha channel. In this case all of expected/bias/value were 0 but
> the actual
> correct read back value is 1.0 (default value for alpha channel
> sampling for
> integer textures is 1 just like it is 1.0 for ordinary texture
> formats).
> ---
>  .../ext_texture_integer/texture-integer-glsl130.c  |    8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/tests/spec/ext_texture_integer/texture-integer-glsl130.c
> b/tests/spec/ext_texture_integer/texture-integer-glsl130.c
> index 17b02bc..bc0d598 100644
> --- a/tests/spec/ext_texture_integer/texture-integer-glsl130.c
> +++ b/tests/spec/ext_texture_integer/texture-integer-glsl130.c
> @@ -373,10 +373,11 @@ test_format(const struct format_info *info)
>  		value[0] = temp;
>  		break;
>  	case GL_RGB_INTEGER_EXT:
> -		expected[3] = 0.0;
> +		value[3] = 1.0;
>  		break;
>  	case GL_RG_INTEGER:
> -		expected[2] = expected[3] = 0.0;
> +		value[2] = 0.0;
> +		value[3] = 1.0;
>  		break;
>  	case GL_ALPHA_INTEGER_EXT:
>  		expected[0] = expected[1] = expected[2] = 0.0;
> @@ -404,7 +405,8 @@ test_format(const struct format_info *info)
>  			expected[0] = expected[1] = expected[2] = expected[3] = 0.25;
>  			value[1] = value[2] = value[3] = value[0];
>  		} else {
> -			expected[1] = expected[2] = expected[3] = 0.0;
> +			value[1] = value[2] = 0.0;
> +			value[3] = 1.0;
>  		}
>  		break;
>  	default:
> --
> 1.7.9.5
>