forked from AuroraMiddleware/gtk
45422f7b61
glcontext: Respect ES API when getting gl version from shared context Closes #4763 See merge request GNOME/gtk!4687
173 lines
8.0 KiB
C
173 lines
8.0 KiB
C
/* GDK - The GIMP Drawing Kit
|
|
*
|
|
* gdkglcontextprivate.h: GL context abstraction
|
|
*
|
|
* Copyright © 2014 Emmanuele Bassi
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef __GDK_GL_CONTEXT_PRIVATE_H__
|
|
#define __GDK_GL_CONTEXT_PRIVATE_H__
|
|
|
|
#include "gdkglcontext.h"
|
|
#include "gdkdrawcontextprivate.h"
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
/* Version requirements for EGL contexts.
|
|
*
|
|
* If you add support for EGL to your backend, please require this.
|
|
*/
|
|
#define GDK_EGL_MIN_VERSION_MAJOR (1)
|
|
#define GDK_EGL_MIN_VERSION_MINOR (4)
|
|
|
|
/* Minimum OpenGL versions supported by GTK.
|
|
* Backends should make sure to never create a context of a previous version.
|
|
*
|
|
* The macros refer to OpenGL; OpenGL with OPENGL_COMPATIBILITY_PROFILE_BIT as
|
|
* OPENGL_PROFILE_MASK; OpenGL ES; and OpenGL ES win32 Angle implementation,
|
|
* respectively
|
|
*/
|
|
#define GDK_GL_MIN_GL_VERSION_MAJOR (3)
|
|
#define GDK_GL_MIN_GL_VERSION_MINOR (2)
|
|
#define GDK_GL_MIN_GL_LEGACY_VERSION_MAJOR (3)
|
|
#define GDK_GL_MIN_GL_LEGACY_VERSION_MINOR (0)
|
|
#define GDK_GL_MIN_GLES_VERSION_MAJOR (2)
|
|
#define GDK_GL_MIN_GLES_VERSION_MINOR (0)
|
|
#define GDK_GL_MIN_GLES_WIN32_ANGLE_VERSION_MAJOR (3)
|
|
#define GDK_GL_MIN_GLES_WIN32_ANGLE_VERSION_MINOR (0)
|
|
|
|
typedef enum {
|
|
GDK_GL_NONE = 0,
|
|
GDK_GL_EGL,
|
|
GDK_GL_GLX,
|
|
GDK_GL_WGL,
|
|
GDK_GL_CGL
|
|
} GdkGLBackend;
|
|
|
|
#define GDK_GL_CONTEXT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_GL_CONTEXT, GdkGLContextClass))
|
|
#define GDK_IS_GL_CONTEXT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_GL_CONTEXT))
|
|
#define GDK_GL_CONTEXT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_GL_CONTEXT, GdkGLContextClass))
|
|
|
|
typedef struct _GdkGLContextClass GdkGLContextClass;
|
|
|
|
struct _GdkGLContext
|
|
{
|
|
GdkDrawContext parent_instance;
|
|
|
|
/* We store the old drawn areas to support buffer-age optimizations */
|
|
cairo_region_t *old_updated_area[2];
|
|
};
|
|
|
|
struct _GdkGLContextClass
|
|
{
|
|
GdkDrawContextClass parent_class;
|
|
|
|
GdkGLBackend backend_type;
|
|
|
|
GdkGLAPI (* realize) (GdkGLContext *context,
|
|
GError **error);
|
|
|
|
gboolean (* make_current) (GdkGLContext *context,
|
|
gboolean surfaceless);
|
|
gboolean (* clear_current) (GdkGLContext *context);
|
|
cairo_region_t * (* get_damage) (GdkGLContext *context);
|
|
|
|
gboolean (* is_shared) (GdkGLContext *self,
|
|
GdkGLContext *other);
|
|
|
|
guint (* get_default_framebuffer) (GdkGLContext *self);
|
|
};
|
|
|
|
typedef struct {
|
|
guint program;
|
|
guint position_location;
|
|
guint uv_location;
|
|
guint map_location;
|
|
guint flip_location;
|
|
} GdkGLContextProgram;
|
|
|
|
typedef struct {
|
|
guint vertex_array_object;
|
|
guint tmp_framebuffer;
|
|
guint tmp_vertex_buffer;
|
|
|
|
GdkGLContextProgram texture_2d_quad_program;
|
|
GdkGLContextProgram texture_rect_quad_program;
|
|
|
|
GdkGLContextProgram *current_program;
|
|
|
|
guint is_legacy : 1;
|
|
guint use_es : 1;
|
|
} GdkGLContextPaintData;
|
|
|
|
gboolean gdk_gl_backend_can_be_used (GdkGLBackend backend_type,
|
|
GError **error);
|
|
void gdk_gl_backend_use (GdkGLBackend backend_type);
|
|
|
|
void gdk_gl_context_clear_current_if_surface (GdkSurface *surface);
|
|
|
|
GdkGLContext * gdk_gl_context_new (GdkDisplay *display,
|
|
GdkSurface *surface);
|
|
|
|
gboolean gdk_gl_context_is_api_allowed (GdkGLContext *self,
|
|
GdkGLAPI api,
|
|
GError **error);
|
|
void gdk_gl_context_set_is_legacy (GdkGLContext *context,
|
|
gboolean is_legacy);
|
|
|
|
gboolean gdk_gl_context_check_version (GdkGLContext *context,
|
|
int required_gl_major,
|
|
int required_gl_minor,
|
|
int required_gles_major,
|
|
int required_gles_minor);
|
|
void gdk_gl_context_get_clipped_version (GdkGLContext *context,
|
|
int min_major,
|
|
int min_minor,
|
|
int *major,
|
|
int *minor);
|
|
void gdk_gl_context_get_matching_version (GdkGLAPI api,
|
|
gboolean legacy,
|
|
gboolean win32_libangle,
|
|
int *major,
|
|
int *minor);
|
|
|
|
gboolean gdk_gl_context_has_unpack_subimage (GdkGLContext *context);
|
|
void gdk_gl_context_push_debug_group (GdkGLContext *context,
|
|
const char *message);
|
|
void gdk_gl_context_push_debug_group_printf (GdkGLContext *context,
|
|
const char *format,
|
|
...) G_GNUC_PRINTF (2, 3);
|
|
void gdk_gl_context_pop_debug_group (GdkGLContext *context);
|
|
void gdk_gl_context_label_object (GdkGLContext *context,
|
|
guint identifier,
|
|
guint name,
|
|
const char *label);
|
|
void gdk_gl_context_label_object_printf (GdkGLContext *context,
|
|
guint identifier,
|
|
guint name,
|
|
const char *format,
|
|
...) G_GNUC_PRINTF (4, 5);
|
|
|
|
gboolean gdk_gl_context_has_debug (GdkGLContext *self) G_GNUC_PURE;
|
|
|
|
gboolean gdk_gl_context_use_es_bgra (GdkGLContext *context);
|
|
|
|
gboolean gdk_gl_context_has_vertex_half_float (GdkGLContext *self) G_GNUC_PURE;
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GDK_GL_CONTEXT_PRIVATE_H__ */
|