diff options
| author | Brian Paul <[email protected]> | 2009-10-28 19:46:26 -0600 |
|---|---|---|
| committer | Brian Paul <[email protected]> | 2009-10-28 19:46:28 -0600 |
| commit | 086f9fc0e2aef27f54eda87c733685500555bf20 (patch) | |
| tree | 156f25c0a8950039ff57ee1fdbcd9539e40b0205 /src | |
| parent | 88bb4b593576a2977b2fe36794bd4d3dbc72063e (diff) | |
swrast: fix RGB, RGBA texturing code
Fix backward component ordering for RGB textures.
Only optimize RGBA texture case if running little endian. This restriction
could be lifted with a little work.
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/swrast/s_triangle.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/src/mesa/swrast/s_triangle.c b/src/mesa/swrast/s_triangle.c index f417578d899..5ecc7692c50 100644 --- a/src/mesa/swrast/s_triangle.c +++ b/src/mesa/swrast/s_triangle.c @@ -159,9 +159,9 @@ _swrast_culltriangle( GLcontext *ctx, GLint t = FixedToInt(span.intTex[1]) & tmask; \ GLint pos = (t << twidth_log2) + s; \ pos = pos + pos + pos; /* multiply by 3 */ \ - rgb[i][RCOMP] = texture[pos]; \ + rgb[i][RCOMP] = texture[pos+2]; \ rgb[i][GCOMP] = texture[pos+1]; \ - rgb[i][BCOMP] = texture[pos+2]; \ + rgb[i][BCOMP] = texture[pos+0]; \ span.intTex[0] += span.intTexStep[0]; \ span.intTex[1] += span.intTexStep[1]; \ } \ @@ -215,9 +215,9 @@ _swrast_culltriangle( GLcontext *ctx, GLint t = FixedToInt(span.intTex[1]) & tmask; \ GLint pos = (t << twidth_log2) + s; \ pos = pos + pos + pos; /* multiply by 3 */ \ - rgb[i][RCOMP] = texture[pos]; \ + rgb[i][RCOMP] = texture[pos+2]; \ rgb[i][GCOMP] = texture[pos+1]; \ - rgb[i][BCOMP] = texture[pos+2]; \ + rgb[i][BCOMP] = texture[pos+0]; \ zRow[i] = z; \ span.array->mask[i] = 1; \ } \ @@ -1101,7 +1101,13 @@ _swrast_choose_triangle( GLcontext *ctx ) #if CHAN_BITS != 8 USE(general_triangle); #else - USE(affine_textured_triangle); + if (format == MESA_FORMAT_RGBA8888 && !_mesa_little_endian()) + /* We only handle RGBA8888 correctly on little endian + * in the optimized code above. + */ + USE(general_triangle); + else + USE(affine_textured_triangle); #endif } } |