Am Mittwoch, 16. November 2011 17:44 CET, Michel Dänzer <mic...@daenzer.net>
schrieb:
> From: Michel Dänzer <michel.daen...@amd.com>
>
> Signed-off-by: Michel Dänzer <michel.daen...@amd.com>
> ---
> src/mesa/main/readpix.c | 3 ++-
> 1 files changed, 2 insertions(+), 1 deletions(-)
>
> diff --git a/src/mesa/main/readpix.c b/src/mesa/main/readpix.c
> index 8550618..582adc3 100644
> --- a/src/mesa/main/readpix.c
> +++ b/src/mesa/main/readpix.c
> @@ -285,7 +285,8 @@ read_rgba_pixels( struct gl_context *ctx,
> return;
>
> if ((ctx->Color._ClampReadColor == GL_TRUE || type != GL_FLOAT) &&
> - !_mesa_is_integer_format(format)) {
> + !_mesa_is_integer_format(format) &&
> + _mesa_get_format_datatype(rb->Format) != GL_UNSIGNED_NORMALIZED) {
> transferOps |= IMAGE_CLAMP_BIT;
> }
>
> --
> 1.7.7.2
>
Hi Michel,
with this patch (b11c167...) I get a regression compared to (4517153...) with
piglit test 'texture-al -auto'.
texture-al: failure with format GL_ALPHA:
expected color = 1, 0.5, 0, 1
result color = 3, 0.501961, 0, 1
glxinfo:
OpenGL renderer string: Gallium 0.4 on AMD BARTS
OpenGL version string: 2.1 Mesa 7.12-devel (git-b11c167)
OpenGL shading language version string: 1.20
Regards,
Ingo
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