#ifndef _EXTENSIONS_H_
#define _EXTENSIONS_H_
-#include "glheader.h"
+#include "mtypes.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
struct gl_context;
struct gl_extensions;
extern void _mesa_enable_sw_extensions(struct gl_context *ctx);
-extern void _mesa_one_time_init_extension_overrides(void);
+extern void _mesa_one_time_init_extension_overrides(struct gl_context *ctx);
-extern void _mesa_init_extensions(struct gl_context *ctx);
+extern void _mesa_init_extensions(struct gl_extensions *extentions);
extern GLubyte *_mesa_make_extension_string(struct gl_context *ctx);
+extern void _mesa_override_extensions(struct gl_context *ctx);
+
extern GLuint
_mesa_get_extension_count(struct gl_context *ctx);
extern const GLubyte *
_mesa_get_enabled_extension(struct gl_context *ctx, GLuint index);
+
+/**
+ * \brief An element of the \c extension_table.
+ */
+struct mesa_extension {
+ /** Name of extension, such as "GL_ARB_depth_clamp". */
+ const char *name;
+
+ /** Offset (in bytes) of the corresponding member in struct gl_extensions. */
+ size_t offset;
+
+ /** Minimum version the extension requires for the given API
+ * (see gl_api defined in mtypes.h). The value is equal to:
+ * 10 * major_version + minor_version
+ */
+ uint8_t version[API_OPENGL_LAST + 1];
+
+ /** Year the extension was proposed or approved. Used to sort the
+ * extension string chronologically. */
+ uint16_t year;
+};
+
+extern const struct mesa_extension _mesa_extension_table[];
+
+
+/* Generate enums for the functions below */
+enum {
+#define EXT(name_str, ...) MESA_EXTENSION_##name_str,
+#include "extensions_table.h"
+#undef EXT
+MESA_EXTENSION_COUNT
+};
+
+
+/** Checks if the context supports a user-facing extension */
+#define EXT(name_str, driver_cap, ...) \
+static inline bool \
+_mesa_has_##name_str(const struct gl_context *ctx) \
+{ \
+ return ctx->Extensions.driver_cap && (ctx->Extensions.Version >= \
+ _mesa_extension_table[MESA_EXTENSION_##name_str].version[ctx->API]); \
+}
+#include "extensions_table.h"
+#undef EXT
+
+/* Sometimes the driver wants to query the extension override status before
+ * a context is created. These variables are filled with extension override
+ * information before context creation.
+ *
+ * This can be useful during extension bring-up when an extension is
+ * partially implemented, but cannot yet be advertised as supported.
+ *
+ * Use it with care and keep access read-only.
+ */
extern struct gl_extensions _mesa_extension_override_enables;
extern struct gl_extensions _mesa_extension_override_disables;
+#ifdef __cplusplus
+}
+#endif
+
#endif