-_swrast_read_index_span( GLcontext *ctx, GLframebuffer *buffer,
- GLuint n, GLint x, GLint y, GLuint indx[] );
+_swrast_get_row(GLcontext *ctx, struct gl_renderbuffer *rb,
+ GLuint count, GLint x, GLint y,
+ GLvoid *values, GLuint valueSize);
+
+
+extern void *
+_swrast_get_dest_rgba(GLcontext *ctx, struct gl_renderbuffer *rb,
+ SWspan *span);