mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-11-08 17:50:10 +00:00
139 lines
3.5 KiB
C
139 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/>.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <gdkenums.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; and OpenGL ES respectively
|
|
*/
|
|
#define GDK_GL_MIN_GL_VERSION GDK_GL_VERSION_INIT (3, 2)
|
|
#define GDK_GL_MIN_GL_LEGACY_VERSION GDK_GL_VERSION_INIT (3, 0)
|
|
#define GDK_GL_MIN_GLES_VERSION GDK_GL_VERSION_INIT (2, 0)
|
|
|
|
typedef struct _GdkGLVersion GdkGLVersion;
|
|
|
|
struct _GdkGLVersion
|
|
{
|
|
int major;
|
|
int minor;
|
|
};
|
|
|
|
#define GDK_GL_VERSION_INIT(maj,min) { maj, min }
|
|
|
|
static const GdkGLVersion supported_gl_versions[] = {
|
|
GDK_GL_VERSION_INIT (4, 6),
|
|
GDK_GL_VERSION_INIT (4, 5),
|
|
GDK_GL_VERSION_INIT (4, 4),
|
|
GDK_GL_VERSION_INIT (4, 3),
|
|
GDK_GL_VERSION_INIT (4, 2),
|
|
GDK_GL_VERSION_INIT (4, 1),
|
|
GDK_GL_VERSION_INIT (4, 0),
|
|
GDK_GL_VERSION_INIT (3, 3),
|
|
GDK_GL_VERSION_INIT (3, 2),
|
|
GDK_GL_VERSION_INIT (3, 1),
|
|
GDK_GL_VERSION_INIT (3, 0),
|
|
|
|
GDK_GL_VERSION_INIT (0, 0)
|
|
};
|
|
|
|
static const GdkGLVersion supported_gles_versions[] = {
|
|
GDK_GL_VERSION_INIT (3, 2),
|
|
GDK_GL_VERSION_INIT (3, 1),
|
|
GDK_GL_VERSION_INIT (3, 0),
|
|
GDK_GL_VERSION_INIT (2, 0),
|
|
|
|
GDK_GL_VERSION_INIT (0, 0)
|
|
};
|
|
|
|
#undef GDK_GL_VERSION_INIT
|
|
#define GDK_GL_VERSION_INIT(maj,min) (GdkGLVersion) { maj, min }
|
|
#define GDK_GL_VERSION_STRING(str) GDK_GL_VERSION_INIT(str[0] - '0', str[2] - '0')
|
|
|
|
static inline const GdkGLVersion *
|
|
gdk_gl_versions_get_for_api (GdkGLAPI api)
|
|
{
|
|
switch (api)
|
|
{
|
|
case GDK_GL_API_GL:
|
|
return supported_gl_versions;
|
|
case GDK_GL_API_GLES:
|
|
return supported_gles_versions;
|
|
default:
|
|
g_assert_not_reached ();
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static inline int
|
|
gdk_gl_version_get_major (const GdkGLVersion *self)
|
|
{
|
|
return self->major;
|
|
}
|
|
|
|
static inline int
|
|
gdk_gl_version_get_minor (const GdkGLVersion *self)
|
|
{
|
|
return self->minor;
|
|
}
|
|
|
|
static inline int
|
|
gdk_gl_version_compare (const GdkGLVersion *a,
|
|
const GdkGLVersion *b)
|
|
{
|
|
if (a->major > b->major)
|
|
return 1;
|
|
if (a->major < b->major)
|
|
return -1;
|
|
|
|
if (a->minor > b->minor)
|
|
return 1;
|
|
if (a->minor < b->minor)
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline gboolean
|
|
gdk_gl_version_greater_equal (const GdkGLVersion *a,
|
|
const GdkGLVersion *b)
|
|
{
|
|
return gdk_gl_version_compare (a, b) >= 0;
|
|
}
|
|
|
|
/* in gdkglcontext.c */
|
|
void gdk_gl_version_init_epoxy (GdkGLVersion *version);
|
|
|
|
G_END_DECLS
|
|
|