diff options
Diffstat (limited to 'src/mesa/main/texformat.c')
| -rw-r--r-- | src/mesa/main/texformat.c | 236 |
1 files changed, 226 insertions, 10 deletions
diff --git a/src/mesa/main/texformat.c b/src/mesa/main/texformat.c index acc268e622d..60f36c4a87f 100644 --- a/src/mesa/main/texformat.c +++ b/src/mesa/main/texformat.c @@ -55,10 +55,10 @@ nonlinear_to_linear(GLubyte cs8) for (i = 0; i < 256; i++) { const GLfloat cs = UBYTE_TO_FLOAT(i); if (cs <= 0.04045) { - table[i] = cs / 12.92; + table[i] = cs / 12.92f; } else { - table[i] = _mesa_pow((cs + 0.055) / 1.055, 2.4); + table[i] = (GLfloat) _mesa_pow((cs + 0.055) / 1.055, 2.4); } } tableReady = GL_TRUE; @@ -1207,6 +1207,30 @@ const struct gl_texture_format _mesa_texformat_z24_s8 = { store_texel_z24_s8 /* StoreTexel */ }; +const struct gl_texture_format _mesa_texformat_s8_z24 = { + MESA_FORMAT_S8_Z24, /* MesaFormat */ + GL_DEPTH_STENCIL_EXT, /* BaseFormat */ + GL_UNSIGNED_NORMALIZED_ARB, /* DataType */ + 0, /* RedBits */ + 0, /* GreenBits */ + 0, /* BlueBits */ + 0, /* AlphaBits */ + 0, /* LuminanceBits */ + 0, /* IntensityBits */ + 0, /* IndexBits */ + 24, /* DepthBits */ + 8, /* StencilBits */ + 4, /* TexelBytes */ + _mesa_texstore_s8_z24, /* StoreTexImageFunc */ + NULL, /* FetchTexel1D */ + NULL, /* FetchTexel2D */ + NULL, /* FetchTexel3D */ + 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 */ +}; + const struct gl_texture_format _mesa_texformat_z16 = { MESA_FORMAT_Z16, /* MesaFormat */ GL_DEPTH_COMPONENT, /* BaseFormat */ @@ -1421,21 +1445,27 @@ _mesa_choose_tex_format( GLcontext *ctx, GLint internalFormat, case GL_COMPRESSED_INTENSITY_ARB: return &_mesa_texformat_intensity; case GL_COMPRESSED_RGB_ARB: +#if FEATURE_texture_fxt1 if (ctx->Extensions.TDFX_texture_compression_FXT1) return &_mesa_texformat_rgb_fxt1; - else if (ctx->Extensions.EXT_texture_compression_s3tc || - ctx->Extensions.S3_s3tc) +#endif +#if FEATURE_texture_s3tc + if (ctx->Extensions.EXT_texture_compression_s3tc || + ctx->Extensions.S3_s3tc) return &_mesa_texformat_rgb_dxt1; - else - return &_mesa_texformat_rgb; +#endif + return &_mesa_texformat_rgb; case GL_COMPRESSED_RGBA_ARB: +#if FEATURE_texture_fxt1 if (ctx->Extensions.TDFX_texture_compression_FXT1) return &_mesa_texformat_rgba_fxt1; - else if (ctx->Extensions.EXT_texture_compression_s3tc || - ctx->Extensions.S3_s3tc) +#endif +#if FEATURE_texture_s3tc + if (ctx->Extensions.EXT_texture_compression_s3tc || + ctx->Extensions.S3_s3tc) return &_mesa_texformat_rgba_dxt3; /* Not rgba_dxt1, see spec */ - else - return &_mesa_texformat_rgba; +#endif + return &_mesa_texformat_rgba; default: ; /* fallthrough */ } @@ -1450,6 +1480,7 @@ _mesa_choose_tex_format( GLcontext *ctx, GLint internalFormat, } } +#if FEATURE_texture_fxt1 if (ctx->Extensions.TDFX_texture_compression_FXT1) { switch (internalFormat) { case GL_COMPRESSED_RGB_FXT1_3DFX: @@ -1460,7 +1491,9 @@ _mesa_choose_tex_format( GLcontext *ctx, GLint internalFormat, ; /* fallthrough */ } } +#endif +#if FEATURE_texture_s3tc if (ctx->Extensions.EXT_texture_compression_s3tc) { switch (internalFormat) { case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: @@ -1488,6 +1521,7 @@ _mesa_choose_tex_format( GLcontext *ctx, GLint internalFormat, ; /* fallthrough */ } } +#endif if (ctx->Extensions.ARB_texture_float) { switch (internalFormat) { @@ -1569,3 +1603,185 @@ _mesa_choose_tex_format( GLcontext *ctx, GLint internalFormat, _mesa_problem(ctx, "unexpected format in _mesa_choose_tex_format()"); return NULL; } + + + +/** + * Return datatype and number of components per texel for the + * given gl_texture_format. + */ +void +_mesa_format_to_type_and_comps(const struct gl_texture_format *format, + GLenum *datatype, GLuint *comps) +{ + switch (format->MesaFormat) { + case MESA_FORMAT_RGBA8888: + case MESA_FORMAT_RGBA8888_REV: + case MESA_FORMAT_ARGB8888: + case MESA_FORMAT_ARGB8888_REV: + *datatype = CHAN_TYPE; + *comps = 4; + return; + case MESA_FORMAT_RGB888: + case MESA_FORMAT_BGR888: + *datatype = GL_UNSIGNED_BYTE; + *comps = 3; + return; + case MESA_FORMAT_RGB565: + case MESA_FORMAT_RGB565_REV: + *datatype = GL_UNSIGNED_SHORT_5_6_5; + *comps = 3; + return; + + case MESA_FORMAT_ARGB4444: + case MESA_FORMAT_ARGB4444_REV: + *datatype = GL_UNSIGNED_SHORT_4_4_4_4; + *comps = 4; + return; + + case MESA_FORMAT_ARGB1555: + case MESA_FORMAT_ARGB1555_REV: + *datatype = GL_UNSIGNED_SHORT_1_5_5_5_REV; + *comps = 3; + return; + + case MESA_FORMAT_AL88: + case MESA_FORMAT_AL88_REV: + *datatype = GL_UNSIGNED_BYTE; + *comps = 2; + return; + case MESA_FORMAT_RGB332: + *datatype = GL_UNSIGNED_BYTE_3_3_2; + *comps = 3; + return; + + case MESA_FORMAT_A8: + case MESA_FORMAT_L8: + case MESA_FORMAT_I8: + case MESA_FORMAT_CI8: + *datatype = GL_UNSIGNED_BYTE; + *comps = 1; + return; + + case MESA_FORMAT_YCBCR: + case MESA_FORMAT_YCBCR_REV: + *datatype = GL_UNSIGNED_SHORT; + *comps = 2; + return; + + case MESA_FORMAT_Z24_S8: + *datatype = GL_UNSIGNED_INT; + *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; + return; + + case MESA_FORMAT_Z32: + *datatype = GL_UNSIGNED_INT; + *comps = 1; + return; + +#if FEATURE_EXT_texture_sRGB + case MESA_FORMAT_SRGB8: + *datatype = GL_UNSIGNED_BYTE; + *comps = 3; + return; + case MESA_FORMAT_SRGBA8: + *datatype = GL_UNSIGNED_BYTE; + *comps = 4; + return; + case MESA_FORMAT_SL8: + *datatype = GL_UNSIGNED_BYTE; + *comps = 1; + return; + case MESA_FORMAT_SLA8: + *datatype = GL_UNSIGNED_BYTE; + *comps = 2; + return; +#endif + +#if FEATURE_texture_fxt1 + case MESA_FORMAT_RGB_FXT1: + case MESA_FORMAT_RGBA_FXT1: +#endif +#if FEATURE_texture_s3tc + case MESA_FORMAT_RGB_DXT1: + case MESA_FORMAT_RGBA_DXT1: + case MESA_FORMAT_RGBA_DXT3: + case MESA_FORMAT_RGBA_DXT5: + /* XXX generate error instead? */ + *datatype = GL_UNSIGNED_BYTE; + *comps = 0; + return; +#endif + + case MESA_FORMAT_RGBA: + *datatype = CHAN_TYPE; + *comps = 4; + return; + case MESA_FORMAT_RGB: + *datatype = CHAN_TYPE; + *comps = 3; + return; + case MESA_FORMAT_LUMINANCE_ALPHA: + *datatype = CHAN_TYPE; + *comps = 2; + return; + case MESA_FORMAT_ALPHA: + case MESA_FORMAT_LUMINANCE: + case MESA_FORMAT_INTENSITY: + *datatype = CHAN_TYPE; + *comps = 1; + return; + + case MESA_FORMAT_RGBA_FLOAT32: + *datatype = GL_FLOAT; + *comps = 4; + return; + case MESA_FORMAT_RGBA_FLOAT16: + *datatype = GL_HALF_FLOAT_ARB; + *comps = 4; + return; + case MESA_FORMAT_RGB_FLOAT32: + *datatype = GL_FLOAT; + *comps = 3; + return; + case MESA_FORMAT_RGB_FLOAT16: + *datatype = GL_HALF_FLOAT_ARB; + *comps = 3; + return; + case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32: + *datatype = GL_FLOAT; + *comps = 2; + return; + case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16: + *datatype = GL_HALF_FLOAT_ARB; + *comps = 2; + return; + case MESA_FORMAT_ALPHA_FLOAT32: + case MESA_FORMAT_LUMINANCE_FLOAT32: + case MESA_FORMAT_INTENSITY_FLOAT32: + *datatype = GL_FLOAT; + *comps = 1; + return; + case MESA_FORMAT_ALPHA_FLOAT16: + case MESA_FORMAT_LUMINANCE_FLOAT16: + case MESA_FORMAT_INTENSITY_FLOAT16: + *datatype = GL_HALF_FLOAT_ARB; + *comps = 1; + return; + + default: + _mesa_problem(NULL, "bad format in _mesa_format_to_type_and_comps"); + *datatype = 0; + *comps = 1; + } +} |