diff options
Diffstat (limited to 'src/mesa/drivers/glide/fxdd.c')
| -rw-r--r-- | src/mesa/drivers/glide/fxdd.c | 39 |
1 files changed, 16 insertions, 23 deletions
diff --git a/src/mesa/drivers/glide/fxdd.c b/src/mesa/drivers/glide/fxdd.c index f7db789f4f1..9aacaecaca2 100644 --- a/src/mesa/drivers/glide/fxdd.c +++ b/src/mesa/drivers/glide/fxdd.c @@ -1902,26 +1902,6 @@ fxDDInitExtensions(GLcontext * ctx) _mesa_enable_extension( ctx, "GL_EXT_stencil_wrap" ); } - /* [dBorca] Hack alert: - * True texture compression can be done only on Napalm. - * We will advertise, however, generic texture compression - * on all Voodoo cards; the Mesa logic allows us to eventually - * fallback to uncompressed. This will fix those dumb applications - * which refuse to run w/o texture compression! We actually _can_ - * do texture compression for pre-Napalm cores, through NCC. But - * NCC poses many issues: - * 1) NCC w/o DITHER_ERR has poor quality and NCC w/ DITHER_ERR is - * damn slow! - * 2) NCC compression cannot be used with multitexturing, because - * the decompression tables are not per TMU anymore (bear in mind - * that earlier Voodoos could handle 2 NCC tables for each TMU -- - * just look for POINTCAST_PALETTE). As a last resort, we could - * fake NCC multitexturing through multipass rendering, but... - * ohwell, it's not worth the effort... - * This stand true for multitexturing palletized textures. - * 3) since NCC is not an OpenGL standard (as opposed to FXT1/DXTC), we - * can't use precompressed textures! - */ if (fxMesa->type >= GR_SSTTYPE_Voodoo4) { _mesa_enable_extension(ctx, "GL_ARB_texture_compression"); _mesa_enable_extension(ctx, "GL_3DFX_texture_compression_FXT1"); @@ -1929,14 +1909,27 @@ fxDDInitExtensions(GLcontext * ctx) _mesa_enable_extension(ctx, "GL_S3_s3tc"); _mesa_enable_extension(ctx, "GL_NV_blend_square"); } else { +#if FX_TC_NCC + /* [dBorca] Hack alert: + * 1) NCC w/o DITHER_ERR has poor quality and NCC w/ DITHER_ERR is + * damn slow! + * 2) NCC compression cannot be used with multitexturing, because + * the decompression tables are not per TMU anymore (bear in mind + * that earlier Voodoos could handle 2 NCC tables for each TMU -- + * just look for POINTCAST_PALETTE). As a last resort, we could + * fake NCC multitexturing through multipass rendering, but... + * ohwell, it's not worth the effort... + * This stand true for multitexturing palletized textures. + * 3) since NCC is not an OpenGL standard (as opposed to FXT1/DXTC), we + * can't use precompressed textures! + */ if (fxMesa->HaveTexus2) { _mesa_enable_extension(ctx, "GL_ARB_texture_compression"); } -#if FX_TC_NCC - else -#endif +#else /* doesn't like texture compression */ _mesa_enable_extension(ctx, "GL_SGIS_generate_mipmap"); +#endif } if (fxMesa->HaveCmbExt) { |