-extern void st_init_driver_functions(struct pipe_screen *screen,
- struct dd_function_table *functions);
-
-void
-st_invalidate_buffers(struct st_context *st);
-
-/* Invalidate the readpixels cache to ensure we don't read stale data.
- */
-static inline void
-st_invalidate_readpix_cache(struct st_context *st)
-{
- if (unlikely(st->readpix_cache.src)) {
- pipe_resource_reference(&st->readpix_cache.src, NULL);
- pipe_resource_reference(&st->readpix_cache.cache, NULL);
- }
-}
-
-
-#define Y_0_TOP 1
-#define Y_0_BOTTOM 2
-
-static inline GLuint
-st_fb_orientation(const struct gl_framebuffer *fb)
-{
- if (fb && _mesa_is_winsys_fbo(fb)) {
- /* Drawing into a window (on-screen buffer).
- *
- * Negate Y scale to flip image vertically.
- * The NDC Y coords prior to viewport transformation are in the range
- * [y=-1=bottom, y=1=top]
- * Hardware window coords are in the range [y=0=top, y=H-1=bottom] where
- * H is the window height.
- * Use the viewport transformation to invert Y.
- */
- return Y_0_TOP;
- }
- else {
- /* Drawing into user-created FBO (very likely a texture).
- *
- * For textures, T=0=Bottom, so by extension Y=0=Bottom for rendering.
- */
- return Y_0_BOTTOM;
- }
-}
-
-
-static inline bool
-st_user_clip_planes_enabled(struct gl_context *ctx)
-{
- return (ctx->API == API_OPENGL_COMPAT ||
- ctx->API == API_OPENGLES) && /* only ES 1.x */
- ctx->Transform.ClipPlanesEnabled;
-}
-
-/** clear-alloc a struct-sized object, with casting */
-#define ST_CALLOC_STRUCT(T) (struct T *) calloc(1, sizeof(struct T))
-
-
-extern struct st_context *
-st_create_context(gl_api api, struct pipe_context *pipe,
- const struct gl_config *visual,
- struct st_context *share,
- const struct st_config_options *options,
- bool no_error);
-
-extern void
-st_destroy_context(struct st_context *st);
-
-uint64_t
-st_get_active_states(struct gl_context *ctx);
-
-