+extern void GLAPIENTRY
+_mesa_GetnTexImageARB( GLenum target, GLint level, GLenum format,
+ GLenum type, GLsizei bufSize, GLvoid *pixels );
+extern void GLAPIENTRY
+_mesa_GetTextureImage(GLuint texture, GLint level, GLenum format,
+ GLenum type, GLsizei bufSize, GLvoid *pixels);
+
+extern void GLAPIENTRY
+_mesa_GetTextureSubImage(GLuint texture, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLenum format, GLenum type, GLsizei bufSize,
+ void *pixels);
+