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mesa: Add _mesa_cpal_compressed_format_type

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Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Tested-by: Jin Yang <jin.a.yang@intel.com>
This commit is contained in:
Ian Romanick 2011-09-12 11:45:43 -05:00
parent a2cab751be
commit b433e7ba07
2 changed files with 20 additions and 0 deletions
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16
src/mesa/main/texpal.c
View file

@ -152,6 +152,22 @@ cpal_get_info(GLint level, GLenum internalFormat,
return info;
}
void
_mesa_cpal_compressed_format_type(GLenum internalFormat, GLenum *format,
GLenum *type)
{
const struct cpal_format_info *info;
if (internalFormat < GL_PALETTE4_RGB8_OES
|| internalFormat > GL_PALETTE8_RGB5_A1_OES) {
return;
}
info = &formats[internalFormat - GL_PALETTE4_RGB8_OES];
*format = info->format;
*type = info->type;
}
/**
* Convert a call to glCompressedTexImage2D() where internalFormat is a
* compressed palette format into a regular GLubyte/RGBA glTexImage2D() call.

4
src/mesa/main/texpal.h
View file

@ -38,4 +38,8 @@ extern unsigned
_mesa_cpal_compressed_size(int level, GLenum internalFormat,
unsigned width, unsigned height);
extern void
_mesa_cpal_compressed_format_type(GLenum internalFormat, GLenum *format,
GLenum *type);
#endif /* TEXPAL_H */