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AL1616: Add texel fetch / store routines

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This commit is contained in:
Ian Romanick 2009-11-16 14:52:43 -08:00
parent eb437fabe0
commit 975871b4d5
2 changed files with 62 additions and 0 deletions
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14
src/mesa/main/texfetch.c
View file

@ -452,6 +452,20 @@ texfetch_funcs[MESA_FORMAT_COUNT] =
fetch_texel_3d_f_al88_rev,
store_texel_al88_rev
},
{
MESA_FORMAT_AL1616,
fetch_texel_1d_f_al1616,
fetch_texel_2d_f_al1616,
fetch_texel_3d_f_al1616,
store_texel_al1616
},
{
MESA_FORMAT_AL1616_REV,
fetch_texel_1d_f_al1616_rev,
fetch_texel_2d_f_al1616_rev,
fetch_texel_3d_f_al1616_rev,
store_texel_al1616_rev
},
{
MESA_FORMAT_RGB332,
fetch_texel_1d_f_rgb332,

48
src/mesa/main/texfetch_tmp.h
View file

@ -834,6 +834,54 @@ static void store_texel_al88_rev(struct gl_texture_image *texImage,
#endif
/* MESA_FORMAT_AL1616 ********************************************************/
/* Fetch texel from 1D, 2D or 3D al1616 texture, return 4 GLchans */
static void FETCH(f_al1616)( const struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLuint s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
texel[RCOMP] =
texel[GCOMP] =
texel[BCOMP] = USHORT_TO_FLOAT( s & 0xffff );
texel[ACOMP] = USHORT_TO_FLOAT( s >> 16 );
}
#if DIM == 3
static void store_texel_al1616(struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, const void *texel)
{
const GLushort *rgba = (const GLushort *) texel;
GLuint *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
*dst = PACK_COLOR_1616(rgba[ACOMP], rgba[RCOMP]);
}
#endif
/* MESA_FORMAT_AL1616_REV ****************************************************/
/* Fetch texel from 1D, 2D or 3D al1616_rev texture, return 4 GLchans */
static void FETCH(f_al1616_rev)( const struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
texel[RCOMP] =
texel[GCOMP] =
texel[BCOMP] = USHORT_TO_FLOAT( s >> 16 );
texel[ACOMP] = USHORT_TO_FLOAT( s & 0xffff );
}
#if DIM == 3
static void store_texel_al1616_rev(struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, const void *texel)
{
const GLushort *rgba = (const GLushort *) texel;
GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
*dst = PACK_COLOR_1616(rgba[RCOMP], rgba[ACOMP]);
}
#endif
/* MESA_FORMAT_RGB332 ********************************************************/
/* Fetch texel from 1D, 2D or 3D rgb332 texture, return 4 GLchans */