diff options
| author | Brian Paul <[email protected]> | 2009-10-28 19:38:12 -0600 |
|---|---|---|
| committer | Brian Paul <[email protected]> | 2009-10-28 19:38:12 -0600 |
| commit | 1e7517f059b1f3601502a199b05453eabfe56cdb (patch) | |
| tree | 594861c025f556f409ace5045c8f8b85c055bd1d | |
| parent | 7ac233ec15743763996e59c8b283f7c2e78a7210 (diff) | |
swrast: fix texel decoding in opt_sample_rgba_2d()
| -rw-r--r-- | src/mesa/swrast/s_texfilter.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/src/mesa/swrast/s_texfilter.c b/src/mesa/swrast/s_texfilter.c index db03c6aa398..0bb988e3ef9 100644 --- a/src/mesa/swrast/s_texfilter.c +++ b/src/mesa/swrast/s_texfilter.c @@ -1391,11 +1391,11 @@ opt_sample_rgba_2d(GLcontext *ctx, const GLint col = IFLOOR(texcoords[i][0] * width) & colMask; const GLint row = IFLOOR(texcoords[i][1] * height) & rowMask; const GLint pos = (row << shift) | col; - const GLubyte *texel = ((GLubyte *) img->Data) + (pos << 2); /* pos*4 */ - rgba[i][RCOMP] = UBYTE_TO_FLOAT(texel[3]); - rgba[i][GCOMP] = UBYTE_TO_FLOAT(texel[2]); - rgba[i][BCOMP] = UBYTE_TO_FLOAT(texel[1]); - rgba[i][ACOMP] = UBYTE_TO_FLOAT(texel[0]); + const GLuint texel = *((GLuint *) img->Data + pos); + rgba[i][RCOMP] = UBYTE_TO_FLOAT( (texel >> 24) ); + rgba[i][GCOMP] = UBYTE_TO_FLOAT( (texel >> 16) & 0xff ); + rgba[i][BCOMP] = UBYTE_TO_FLOAT( (texel >> 8) & 0xff ); + rgba[i][ACOMP] = UBYTE_TO_FLOAT( (texel ) & 0xff ); } } |