You could also use GL_R3_G3_B2 and check if st_format.c (line 775) does what you want.
Marek On Thu, Oct 25, 2012 at 4:47 PM, <jfons...@vmware.com> wrote: > From: José Fonseca <jfons...@vmware.com> > > 4bits and 3bits quantitization values differ significantly for > values other than 0 and 1. > > Fixes piglit draw-pixels for softpipe/llvmpipe. > --- > src/mesa/state_tracker/st_cb_drawpixels.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/src/mesa/state_tracker/st_cb_drawpixels.c > b/src/mesa/state_tracker/st_cb_drawpixels.c > index 4e2edd2..4532ded 100644 > --- a/src/mesa/state_tracker/st_cb_drawpixels.c > +++ b/src/mesa/state_tracker/st_cb_drawpixels.c > @@ -396,6 +396,9 @@ internal_format(struct gl_context *ctx, GLenum format, > GLenum type) > > case GL_UNSIGNED_BYTE_3_3_2: > case GL_UNSIGNED_BYTE_2_3_3_REV: > + /* GL_RGBA4 introduces too much error for normalized values */ > + return GL_RGBA8; > + > case GL_UNSIGNED_SHORT_4_4_4_4: > case GL_UNSIGNED_SHORT_4_4_4_4_REV: > return GL_RGBA4; > -- > 1.7.9.5 > > _______________________________________________ > mesa-dev mailing list > mesa-dev@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/mesa-dev _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
