diff options
Diffstat (limited to 'src/mesa/main/texfetch_tmp.h')
| -rw-r--r-- | src/mesa/main/texfetch_tmp.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/mesa/main/texfetch_tmp.h b/src/mesa/main/texfetch_tmp.h index c985de9290..b6ffdd09f9 100644 --- a/src/mesa/main/texfetch_tmp.h +++ b/src/mesa/main/texfetch_tmp.h @@ -883,6 +883,30 @@ static void store_texel_rg88_rev(struct gl_texture_image *texImage, #endif +/* MESA_FORMAT_AL44 **********************************************************/ + +/* Fetch texel from 1D, 2D or 3D al44 texture, return 4 GLchans */ +static void FETCH(f_al44)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLubyte s = *TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = UBYTE_TO_FLOAT( (s & 0x0f) << 4 ); + texel[ACOMP] = UBYTE_TO_FLOAT( s & 0xf0 ); +} + +#if DIM == 3 +static void store_texel_al44(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); + *dst = PACK_COLOR_44(rgba[ACOMP], rgba[RCOMP]); +} +#endif + + /* MESA_FORMAT_AL88 **********************************************************/ /* Fetch texel from 1D, 2D or 3D al88 texture, return 4 GLchans */ |