diff options
| author | Jakob Bornecrantz <jakob@tungstengraphics.com> | 2008-06-09 16:29:57 +0200 |
|---|---|---|
| committer | Jakob Bornecrantz <jakob@tungstengraphics.com> | 2008-06-09 16:33:14 +0200 |
| commit | 2e3e5184176debb66bdd7f5f606cf95b7fee91bb (patch) | |
| tree | 359dbc72ca40a545147259e003a4a080ff2a5297 | |
| parent | 80ab4c3f8c3cf9518cd40ce1dff10ab99ab20301 (diff) | |
mesa: Most of the functions of MESA_TEXTURE_S8_Z24 are now supported
| -rw-r--r-- | src/mesa/main/texformat.c | 12 | ||||
| -rw-r--r-- | src/mesa/main/texformat_tmp.h | 26 |
2 files changed, 31 insertions, 7 deletions
diff --git a/src/mesa/main/texformat.c b/src/mesa/main/texformat.c index d479bf510e..17859a9fec 100644 --- a/src/mesa/main/texformat.c +++ b/src/mesa/main/texformat.c @@ -1229,17 +1229,10 @@ const struct gl_texture_format _mesa_texformat_s8_z24 = { NULL, /* FetchTexel1D */ NULL, /* FetchTexel2D */ NULL, /* FetchTexel3D */ -#if 0 fetch_texel_1d_f_s8_z24, /* FetchTexel1Df */ fetch_texel_2d_f_s8_z24, /* FetchTexel2Df */ fetch_texel_3d_f_s8_z24, /* FetchTexel3Df */ store_texel_s8_z24 /* StoreTexel */ -#else - fetch_texel_1d_f_z24_s8, /* FetchTexel1Df */ - fetch_texel_2d_f_z24_s8, /* FetchTexel2Df */ - fetch_texel_3d_f_z24_s8, /* FetchTexel3Df */ - store_texel_z24_s8 /* StoreTexel */ -#endif }; const struct gl_texture_format _mesa_texformat_z16 = { @@ -1675,6 +1668,11 @@ _mesa_format_to_type_and_comps(const struct gl_texture_format *format, *comps = 1; /* XXX OK? */ return; + case MESA_FORMAT_S8_Z24: + *datatype = GL_UNSIGNED_INT; + *comps = 1; /* XXX OK? */ + return; + case MESA_FORMAT_Z16: *datatype = GL_UNSIGNED_SHORT; *comps = 1; diff --git a/src/mesa/main/texformat_tmp.h b/src/mesa/main/texformat_tmp.h index 99785da1a0..63939f4011 100644 --- a/src/mesa/main/texformat_tmp.h +++ b/src/mesa/main/texformat_tmp.h @@ -1363,6 +1363,32 @@ static void store_texel_z24_s8(struct gl_texture_image *texImage, #endif +/* MESA_TEXFORMAT_S8_Z24 ***************************************************/ + +static void FETCH(f_s8_z24)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + /* only return Z, not stencil data */ + const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + const GLfloat scale = 1.0F / (GLfloat) 0xffffff; + texel[0] = ((*src) & 0x00ffffff) * scale; + ASSERT(texImage->TexFormat->MesaFormat == MESA_FORMAT_S8_Z24); + ASSERT(texel[0] >= 0.0F); + ASSERT(texel[0] <= 1.0F); +} + +#if DIM == 3 +static void store_texel_s8_z24(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + /* only store Z, not stencil */ + GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + GLfloat depth = *((GLfloat *) texel); + GLuint zi = (GLuint) (depth * 0xffffff); + *dst = zi | (*dst & 0xff000000); +} +#endif + #undef TEXEL_ADDR #undef DIM |