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 b6ffdd09f9..3a75cdcefe 100644 --- a/src/mesa/main/texfetch_tmp.h +++ b/src/mesa/main/texfetch_tmp.h @@ -1148,6 +1148,30 @@ static void store_texel_a8(struct gl_texture_image *texImage, #endif +/* MESA_FORMAT_A16 ************************************************************/ + +/* Fetch texel from 1D, 2D or 3D a8 texture, return 4 GLchans */ +static void FETCH(f_a16)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = 0.0F; + texel[ACOMP] = USHORT_TO_FLOAT( src[0] ); +} + +#if DIM == 3 +static void store_texel_a16(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLushort *rgba = (const GLushort *) texel; + GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + *dst = rgba[ACOMP]; +} +#endif + + /* MESA_FORMAT_L8 ************************************************************/ /* Fetch texel from 1D, 2D or 3D l8 texture, return 4 GLchans */ |