struct dd_function_table;
extern struct st_renderbuffer *
-st_get_color_read_renderbuffer(GLcontext *ctx);
+st_get_color_read_renderbuffer(struct gl_context *ctx);
extern void
-st_read_stencil_pixels(GLcontext *ctx, GLint x, GLint y,
+st_read_stencil_pixels(struct gl_context *ctx, GLint x, GLint y,
GLsizei width, GLsizei height,
GLenum format, GLenum type,
const struct gl_pixelstore_attrib *packing,