1 | /* GDK - The GIMP Drawing Kit |
2 | * |
3 | * gdkglcontextprivate.h: GL context abstraction |
4 | * |
5 | * Copyright © 2014 Emmanuele Bassi |
6 | * |
7 | * This library is free software; you can redistribute it and/or |
8 | * modify it under the terms of the GNU Library General Public |
9 | * License as published by the Free Software Foundation; either |
10 | * version 2 of the License, or (at your option) any later version. |
11 | * |
12 | * This library is distributed in the hope that it will be useful, |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
15 | * Library General Public License for more details. |
16 | * |
17 | * You should have received a copy of the GNU Library General Public |
18 | * License along with this library. If not, see <http://www.gnu.org/licenses/>. |
19 | */ |
20 | |
21 | #ifndef __GDK_GL_CONTEXT_PRIVATE_H__ |
22 | #define __GDK_GL_CONTEXT_PRIVATE_H__ |
23 | |
24 | #include "gdkglcontext.h" |
25 | |
26 | G_BEGIN_DECLS |
27 | |
28 | #define GDK_GL_CONTEXT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_GL_CONTEXT, GdkGLContextClass)) |
29 | #define GDK_IS_GL_CONTEXT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_GL_CONTEXT)) |
30 | #define GDK_GL_CONTEXT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_GL_CONTEXT, GdkGLContextClass)) |
31 | |
32 | typedef struct _GdkGLContextClass GdkGLContextClass; |
33 | |
34 | struct _GdkGLContext |
35 | { |
36 | GObject parent_instance; |
37 | }; |
38 | |
39 | struct _GdkGLContextClass |
40 | { |
41 | GObjectClass parent_class; |
42 | |
43 | gboolean (* realize) (GdkGLContext *context, |
44 | GError **error); |
45 | |
46 | void (* end_frame) (GdkGLContext *context, |
47 | cairo_region_t *painted, |
48 | cairo_region_t *damage); |
49 | gboolean (* texture_from_surface) (GdkGLContext *context, |
50 | cairo_surface_t *surface, |
51 | cairo_region_t *region); |
52 | }; |
53 | |
54 | typedef struct { |
55 | guint program; |
56 | guint position_location; |
57 | guint uv_location; |
58 | guint map_location; |
59 | guint flip_location; |
60 | } GdkGLContextProgram; |
61 | |
62 | typedef struct { |
63 | guint vertex_array_object; |
64 | guint tmp_framebuffer; |
65 | guint tmp_vertex_buffer; |
66 | |
67 | GdkGLContextProgram texture_2d_quad_program; |
68 | GdkGLContextProgram texture_rect_quad_program; |
69 | |
70 | GdkGLContextProgram *current_program; |
71 | |
72 | guint is_legacy : 1; |
73 | guint use_es : 1; |
74 | } GdkGLContextPaintData; |
75 | |
76 | void gdk_gl_context_set_is_legacy (GdkGLContext *context, |
77 | gboolean is_legacy); |
78 | |
79 | void gdk_gl_context_upload_texture (GdkGLContext *context, |
80 | cairo_surface_t *image_surface, |
81 | int width, |
82 | int height, |
83 | guint texture_target); |
84 | GdkGLContextPaintData * gdk_gl_context_get_paint_data (GdkGLContext *context); |
85 | gboolean gdk_gl_context_use_texture_rectangle (GdkGLContext *context); |
86 | gboolean gdk_gl_context_has_framebuffer_blit (GdkGLContext *context); |
87 | gboolean gdk_gl_context_has_frame_terminator (GdkGLContext *context); |
88 | gboolean gdk_gl_context_has_unpack_subimage (GdkGLContext *context); |
89 | void gdk_gl_context_end_frame (GdkGLContext *context, |
90 | cairo_region_t *painted, |
91 | cairo_region_t *damage); |
92 | |
93 | G_END_DECLS |
94 | |
95 | #endif /* __GDK_GL_CONTEXT_PRIVATE_H__ */ |
96 | |