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authorBrian Paul <brianp@vmware.com>2009-04-06 14:06:08 -0600
committerBrian Paul <brianp@vmware.com>2009-04-06 14:06:08 -0600
commit89276e2aafd837dbf4eefaa28388109271d6d07d (patch)
tree6080acec7d6e7122ea2af8ec163e0fe4a931889f /src/mesa/state_tracker
parenta07e68df6826d979d6a9575d17599f14afd51fe9 (diff)
st: as with swrast, interpret texture border color according to texture format
Depending on the hardware driver this might not be needed, but it will cause no harm.
Diffstat (limited to 'src/mesa/state_tracker')
-rw-r--r--src/mesa/state_tracker/st_atom_sampler.c41
1 files changed, 37 insertions, 4 deletions
diff --git a/src/mesa/state_tracker/st_atom_sampler.c b/src/mesa/state_tracker/st_atom_sampler.c
index b7b0e50cba..50ce82811c 100644
--- a/src/mesa/state_tracker/st_atom_sampler.c
+++ b/src/mesa/state_tracker/st_atom_sampler.c
@@ -118,6 +118,37 @@ gl_filter_to_img_filter(GLenum filter)
}
+static void
+xlate_border_color(const GLfloat *colorIn, GLenum baseFormat, GLfloat *colorOut)
+{
+ switch (baseFormat) {
+ case GL_RGB:
+ colorOut[0] = colorIn[0];
+ colorOut[1] = colorIn[1];
+ colorOut[2] = colorIn[2];
+ colorOut[3] = 1.0F;
+ break;
+ case GL_ALPHA:
+ colorOut[0] = colorOut[1] = colorOut[2] = 0.0;
+ colorOut[3] = colorIn[3];
+ break;
+ case GL_LUMINANCE:
+ colorOut[0] = colorOut[1] = colorOut[2] = colorIn[0];
+ colorOut[3] = 1.0;
+ break;
+ case GL_LUMINANCE_ALPHA:
+ colorOut[0] = colorOut[1] = colorOut[2] = colorIn[0];
+ colorOut[3] = colorIn[3];
+ break;
+ case GL_INTENSITY:
+ colorOut[0] = colorOut[1] = colorOut[2] = colorOut[3] = colorIn[0];
+ break;
+ default:
+ COPY_4V(colorOut, colorIn);
+ }
+}
+
+
static void
update_samplers(struct st_context *st)
{
@@ -137,6 +168,7 @@ update_samplers(struct st_context *st)
if (samplersUsed & (1 << su)) {
struct gl_texture_object *texobj;
+ struct gl_texture_image *teximg;
GLuint texUnit;
if (fprog->Base.SamplersUsed & (1 << su))
@@ -149,6 +181,8 @@ update_samplers(struct st_context *st)
texobj = st_get_default_texture(st);
}
+ teximg = texobj->Image[0][texobj->BaseLevel];
+
sampler->wrap_s = gl_wrap_xlate(texobj->WrapS);
sampler->wrap_t = gl_wrap_xlate(texobj->WrapT);
sampler->wrap_r = gl_wrap_xlate(texobj->WrapR);
@@ -174,10 +208,9 @@ update_samplers(struct st_context *st)
assert(sampler->min_lod <= sampler->max_lod);
}
- sampler->border_color[0] = texobj->BorderColor[RCOMP];
- sampler->border_color[1] = texobj->BorderColor[GCOMP];
- sampler->border_color[2] = texobj->BorderColor[BCOMP];
- sampler->border_color[3] = texobj->BorderColor[ACOMP];
+ xlate_border_color(texobj->BorderColor,
+ teximg ? teximg->TexFormat->BaseFormat : GL_RGBA,
+ sampler->border_color);
sampler->max_anisotropy = texobj->MaxAnisotropy;
if (sampler->max_anisotropy > 1.0) {