-_mesa_mmx_blend_transparency( GLcontext *ctx, GLuint n, const GLubyte mask[],
- GLubyte rgba[][4], const GLubyte dest[][4] );
+_mesa_mmx_blend_transparency( struct gl_context *ctx, GLuint n, const GLubyte mask[],
+ GLvoid *rgba, const GLvoid *dest,
+ GLenum chanType );