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/* 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"
G_BEGIN_DECLS
#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
{
GObject parent_instance;
};
struct _GdkGLContextClass
{
GObjectClass parent_class;
gboolean (* realize) (GdkGLContext *context,
GError **error);
void (* end_frame) (GdkGLContext *context,
cairo_region_t *painted,
cairo_region_t *damage);
gboolean (* texture_from_surface) (GdkGLContext *context,
cairo_surface_t *surface,
cairo_region_t *region);
};
typedef struct {
guint program;
guint position_location;
guint uv_location;
guint map_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;
} GdkGLContextPaintData;
void gdk_gl_context_set_is_legacy (GdkGLContext *context,
gboolean is_legacy);
void gdk_gl_context_upload_texture (GdkGLContext *context,
cairo_surface_t *image_surface,
int width,
int height,
guint texture_target);
GdkGLContextPaintData * gdk_gl_context_get_paint_data (GdkGLContext *context);
gboolean gdk_gl_context_use_texture_rectangle (GdkGLContext *context);
gboolean gdk_gl_context_has_framebuffer_blit (GdkGLContext *context);
gboolean gdk_gl_context_has_frame_terminator (GdkGLContext *context);
void gdk_gl_context_end_frame (GdkGLContext *context,
cairo_region_t *painted,
cairo_region_t *damage);
G_END_DECLS
#endif /* __GDK_GL_CONTEXT_PRIVATE_H__ */
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