diff options
Diffstat (limited to 'src/mesa/main/texcompress.c')
| -rw-r--r-- | src/mesa/main/texcompress.c | 77 |
1 files changed, 58 insertions, 19 deletions
diff --git a/src/mesa/main/texcompress.c b/src/mesa/main/texcompress.c index 5ad936419b..04f0f3ab13 100644 --- a/src/mesa/main/texcompress.c +++ b/src/mesa/main/texcompress.c @@ -3,6 +3,7 @@ * Version: 6.5.1 * * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. + * Copyright (c) 2008 VMware, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), @@ -84,6 +85,25 @@ _mesa_get_compressed_formats(GLcontext *ctx, GLint *formats, GLboolean all) if (all) n += 1; } +#if FEATURE_EXT_texture_sRGB + if (ctx->Extensions.EXT_texture_sRGB) { + if (formats) { + if (all) { + /* according to sRGB spec, these should not be returned + via the GL_COMPRESSED_TEXTURE_FORMATS query as they + aren't really general purpose */ + formats[n++] = GL_COMPRESSED_SRGB_S3TC_DXT1_EXT; + formats[n++] = GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT; + formats[n++] = GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT; + formats[n++] = GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT; + } + } + else { + if (all) + n += 4; + } + } +#endif /* FEATURE_EXT_texture_sRGB */ } if (ctx->Extensions.S3_s3tc) { if (formats) { @@ -96,19 +116,6 @@ _mesa_get_compressed_formats(GLcontext *ctx, GLint *formats, GLboolean all) n += 4; } } -#if FEATURE_EXT_texture_sRGB - if (ctx->Extensions.EXT_texture_sRGB) { - if (formats) { - formats[n++] = GL_COMPRESSED_SRGB_S3TC_DXT1_EXT; - formats[n++] = GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT; - formats[n++] = GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT; - formats[n++] = GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT; - } - else { - n += 4; - } - } -#endif /* FEATURE_EXT_texture_sRGB */ } return n; } @@ -151,13 +158,15 @@ _mesa_compressed_texture_size( GLcontext *ctx, /* Textures smaller than 8x4 will effectively be made into 8x4 and * take 16 bytes. */ - if (size < 16) - size = 16; return size; #endif #if FEATURE_texture_s3tc case MESA_FORMAT_RGB_DXT1: case MESA_FORMAT_RGBA_DXT1: +#if FEATURE_EXT_texture_sRGB + case MESA_FORMAT_SRGB_DXT1: + case MESA_FORMAT_SRGBA_DXT1: +#endif /* round up width, height to next multiple of 4 */ width = (width + 3) & ~3; height = (height + 3) & ~3; @@ -166,11 +175,13 @@ _mesa_compressed_texture_size( GLcontext *ctx, /* Textures smaller than 4x4 will effectively be made into 4x4 and * take 8 bytes. */ - if (size < 8) - size = 8; return size; case MESA_FORMAT_RGBA_DXT3: case MESA_FORMAT_RGBA_DXT5: +#if FEATURE_EXT_texture_sRGB + case MESA_FORMAT_SRGBA_DXT3: + case MESA_FORMAT_SRGBA_DXT5: +#endif /* round up width, height to next multiple of 4 */ width = (width + 3) & ~3; height = (height + 3) & ~3; @@ -179,8 +190,6 @@ _mesa_compressed_texture_size( GLcontext *ctx, /* Textures smaller than 4x4 will effectively be made into 4x4 and * take 16 bytes. */ - if (size < 16) - size = 16; return size; #endif default: @@ -232,6 +241,20 @@ _mesa_compressed_texture_size_glenum(GLcontext *ctx, case GL_RGBA4_S3TC: mesaFormat = MESA_FORMAT_RGBA_DXT5; break; +#if FEATURE_EXT_texture_sRGB + case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT: + mesaFormat = MESA_FORMAT_SRGB_DXT1; + break; + case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: + mesaFormat = MESA_FORMAT_SRGBA_DXT1; + break; + case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: + mesaFormat = MESA_FORMAT_SRGBA_DXT3; + break; + case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: + mesaFormat = MESA_FORMAT_SRGBA_DXT5; + break; +#endif #endif default: return 0; @@ -263,10 +286,18 @@ _mesa_compressed_row_stride(GLuint mesaFormat, GLsizei width) #if FEATURE_texture_s3tc case MESA_FORMAT_RGB_DXT1: case MESA_FORMAT_RGBA_DXT1: +#if FEATURE_EXT_texture_sRGB + case MESA_FORMAT_SRGB_DXT1: + case MESA_FORMAT_SRGBA_DXT1: +#endif stride = ((width + 3) / 4) * 8; /* 8 bytes per 4x4 tile */ break; case MESA_FORMAT_RGBA_DXT3: case MESA_FORMAT_RGBA_DXT5: +#if FEATURE_EXT_texture_sRGB + case MESA_FORMAT_SRGBA_DXT3: + case MESA_FORMAT_SRGBA_DXT5: +#endif stride = ((width + 3) / 4) * 16; /* 16 bytes per 4x4 tile */ break; #endif @@ -315,10 +346,18 @@ _mesa_compressed_image_address(GLint col, GLint row, GLint img, #if FEATURE_texture_s3tc case MESA_FORMAT_RGB_DXT1: case MESA_FORMAT_RGBA_DXT1: +#if FEATURE_EXT_texture_sRGB + case MESA_FORMAT_SRGB_DXT1: + case MESA_FORMAT_SRGBA_DXT1: +#endif addr = (GLubyte *) image + 8 * (((width + 3) / 4) * (row / 4) + col / 4); break; case MESA_FORMAT_RGBA_DXT3: case MESA_FORMAT_RGBA_DXT5: +#if FEATURE_EXT_texture_sRGB + case MESA_FORMAT_SRGBA_DXT3: + case MESA_FORMAT_SRGBA_DXT5: +#endif addr = (GLubyte *) image + 16 * (((width + 3) / 4) * (row / 4) + col / 4); break; #endif |