mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-11-10 10:50:10 +00:00
2dfca143bb
We want to have the ability to fall back to legacy GL contexts when creating them. In order to do so, we need to store the legacy bit on the GdkGLContext, as well as being able to query it. Setting the legacy bit from outside GDK is not possible; we cannot create GL contexts in 3.2 core profile *and* compatibility modes at the same time, and if we allowed users to select the legacy mode themselves, it would break the creation of the GdkWindow's paint GL context. What we do allow is falling back to legacy GL context if the platform does not support 3.2 core profiles — for instance, on older GPUs or inside virtualized environments. We are also going to use the legacy bit internally, to choose which GL API we can use when drawing GL content. https://bugzilla.gnome.org/show_bug.cgi?id=756142
91 lines
3.5 KiB
C
91 lines
3.5 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"
|
|
|
|
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;
|
|
} 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__ */
|