gstreamer/subprojects/gstreamer-vaapi/gst-libs/gst/vaapi/gstvaapiutils_glx.h

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/*
* gstvaapiutils_glx.h - GLX utilties
*
* Copyright (C) 2010-2011 Splitted-Desktop Systems
* Author: Gwenole Beauchesne <gwenole.beauchesne@splitted-desktop.com>
* Copyright (C) 2012 Intel Corporation
* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
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*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* of the License, or (at your option) any later version.
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*
* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
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*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
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*/
#ifndef GST_VAAPI_UTILS_GLX_H
#define GST_VAAPI_UTILS_GLX_H
#include "config.h"
#include <GL/gl.h>
#include <GL/glx.h>
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#include <glib.h>
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#if GLX_GLXEXT_VERSION < 18
typedef void (*PFNGLXBINDTEXIMAGEEXTPROC) (Display *, GLXDrawable, int,
const int *);
typedef void (*PFNGLXRELEASETEXIMAGEEXTPROC) (Display *, GLXDrawable, int);
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#endif
#if GLX_GLXEXT_VERSION < 27
/* XXX: this is not exactly that version but this is the only means to
make sure we have the correct <GL/glx.h> with those signatures */
typedef GLXPixmap (*PFNGLXCREATEPIXMAPPROC) (Display *, GLXFBConfig, Pixmap,
const int *);
typedef void (*PFNGLXDESTROYPIXMAPPROC) (Display *, GLXPixmap);
#endif
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#ifndef GL_FRAMEBUFFER_BINDING
#define GL_FRAMEBUFFER_BINDING GL_FRAMEBUFFER_BINDING_EXT
#endif
G_GNUC_INTERNAL
const gchar *
gl_get_error_string (GLenum error);
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G_GNUC_INTERNAL
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void
gl_purge_errors (void);
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G_GNUC_INTERNAL
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gboolean
gl_check_error (void);
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G_GNUC_INTERNAL
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gboolean
gl_get_param (GLenum param, guint * pval);
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G_GNUC_INTERNAL
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gboolean
gl_get_texture_param (GLenum target, GLenum param, guint * pval);
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G_GNUC_INTERNAL
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void
gl_set_bgcolor (guint32 color);
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G_GNUC_INTERNAL
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void
gl_resize (guint width, guint height);
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typedef struct _GLContextState GLContextState;
struct _GLContextState
{
Display *display;
Window window;
XVisualInfo *visual;
GLXContext context;
guint swapped_buffers:1;
};
G_GNUC_INTERNAL
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GLContextState *
gl_create_context (Display * dpy, int screen, GLContextState * parent);
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G_GNUC_INTERNAL
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void
gl_destroy_context (GLContextState * cs);
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G_GNUC_INTERNAL
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void
gl_get_current_context (GLContextState * cs);
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G_GNUC_INTERNAL
gboolean
gl_set_current_context (GLContextState * new_cs, GLContextState * old_cs);
G_GNUC_INTERNAL
void
gl_swap_buffers (GLContextState * cs);
typedef struct _GLTextureState GLTextureState;
struct _GLTextureState
{
GLenum target;
GLuint old_texture;
guint was_enabled:1;
guint was_bound:1;
};
G_GNUC_INTERNAL
gboolean
gl_bind_texture (GLTextureState * ts, GLenum target, GLuint texture);
G_GNUC_INTERNAL
gboolean
gl3_bind_texture_2d (GLTextureState * ts, GLenum target, GLuint texture);
G_GNUC_INTERNAL
void
gl_unbind_texture (GLTextureState * ts);
G_GNUC_INTERNAL
GLuint
gl_create_texture (GLenum target, GLenum format, guint width, guint height);
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typedef struct _GLVTable GLVTable;
struct _GLVTable
{
PFNGLXCREATEPIXMAPPROC glx_create_pixmap;
PFNGLXDESTROYPIXMAPPROC glx_destroy_pixmap;
PFNGLXBINDTEXIMAGEEXTPROC glx_bind_tex_image;
PFNGLXRELEASETEXIMAGEEXTPROC glx_release_tex_image;
PFNGLGENFRAMEBUFFERSEXTPROC gl_gen_framebuffers;
PFNGLDELETEFRAMEBUFFERSEXTPROC gl_delete_framebuffers;
PFNGLBINDFRAMEBUFFEREXTPROC gl_bind_framebuffer;
PFNGLGENRENDERBUFFERSEXTPROC gl_gen_renderbuffers;
PFNGLDELETERENDERBUFFERSEXTPROC gl_delete_renderbuffers;
PFNGLBINDRENDERBUFFEREXTPROC gl_bind_renderbuffer;
PFNGLRENDERBUFFERSTORAGEEXTPROC gl_renderbuffer_storage;
PFNGLFRAMEBUFFERRENDERBUFFEREXTPROC gl_framebuffer_renderbuffer;
PFNGLFRAMEBUFFERTEXTURE2DEXTPROC gl_framebuffer_texture_2d;
PFNGLCHECKFRAMEBUFFERSTATUSEXTPROC gl_check_framebuffer_status;
guint has_texture_from_pixmap:1;
guint has_framebuffer_object:1;
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};
G_GNUC_INTERNAL
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GLVTable *
gl_get_vtable (void);
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typedef struct _GLPixmapObject GLPixmapObject;
struct _GLPixmapObject
{
Display *dpy;
GLenum target;
GLuint texture;
GLTextureState old_texture;
guint width;
guint height;
Pixmap pixmap;
GLXPixmap glx_pixmap;
guint is_bound:1;
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};
G_GNUC_INTERNAL
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GLPixmapObject *
gl_create_pixmap_object (Display * dpy, guint width, guint height);
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G_GNUC_INTERNAL
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void
gl_destroy_pixmap_object (GLPixmapObject * pixo);
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G_GNUC_INTERNAL
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gboolean
gl_bind_pixmap_object (GLPixmapObject * pixo);
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G_GNUC_INTERNAL
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gboolean
gl_unbind_pixmap_object (GLPixmapObject * pixo);
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typedef struct _GLFramebufferObject GLFramebufferObject;
struct _GLFramebufferObject
{
guint width;
guint height;
GLuint fbo;
GLuint old_fbo;
guint is_bound:1;
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};
G_GNUC_INTERNAL
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GLFramebufferObject *
gl_create_framebuffer_object (GLenum target,
GLuint texture, guint width, guint height);
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G_GNUC_INTERNAL
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void
gl_destroy_framebuffer_object (GLFramebufferObject * fbo);
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G_GNUC_INTERNAL
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gboolean
gl_bind_framebuffer_object (GLFramebufferObject * fbo);
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G_GNUC_INTERNAL
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gboolean
gl_unbind_framebuffer_object (GLFramebufferObject * fbo);
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typedef enum {
GST_VAAPI_GL_API_NONE = 0,
GST_VAAPI_GL_API_OPENGL = (1 << 0),
GST_VAAPI_GL_API_OPENGL3 = (1 << 1),
GST_VAAPI_GL_API_GLES1 = (1 << 15),
GST_VAAPI_GL_API_GLES2 = (1 << 16),
GST_VAAPI_GL_API_ANY = G_MAXUINT32
} GstVaapiGLApi;
G_GNUC_INTERNAL
GstVaapiGLApi
gl_get_current_api (guint * major, guint * minor);
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#endif /* GST_VAAPI_UTILS_GLX_H */