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mutter/cogl/winsys/cogl-texture-pixmap-x11-private.h

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Add a CoglTexturePixmapX11 texture backend This is a publicly exposed texture backend to create a texture which contains the contents of an X11 pixmap. The API is currently marked as experimental. The backend internally holds a handle to another texture. All of the backend virtuals simply redirect to the internal texture. The texture can optionally be automatically updated if the automatic_updates parameter is TRUE. If set then Cogl will listen for damage events on the pixmap and update the texture accordingly. Alternatively a damage object can be created externally and passed down to Cogl. The updates can be performed with XGetImage, XShmGetImage or the GLX_EXT_texture_pixmap extension. If the TFP extension is used it will optionally try to create a rectangle texture if the driver does not support NPOTs or it is forced through the COGL_PIXMAP_TEXTURE_RECTANGLE or CLUTTER_PIXMAP_TEXTURE_RECTANGLE environment variables. If the GLXFBConfig does not support mipmapping then it will fallback to using X{Shm,}GetImage. It keeps a separate texture around for this so that it can later start using the TFP texture again if the texture is later drawn with mipmaps disabled.
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/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2010 Intel Corporation.
*
* 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 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*
*/
#ifndef __COGL_TEXTURE_PIXMAP_X11_PRIVATE_H
#define __COGL_TEXTURE_PIXMAP_X11_PRIVATE_H
#include <X11/Xlib.h>
#include <X11/extensions/XShm.h>
#include <X11/extensions/Xdamage.h>
#include <sys/shm.h>
#ifdef COGL_HAS_GLX_SUPPORT
#include <GL/glx.h>
#endif
#include "cogl-handle.h"
#include "cogl-texture-private.h"
texture-pixmap-x11: Move GLX code to cogl-winsys-glx.c This moves the GLX specific code from cogl-texture-pixmap-x11.c into cogl-winsys-glx.c. If we want the winsys components to by dynamically loadable then we can't have GLX code scattered outside of cogl-winsys-glx.c. This also sets us up for supporting the EGL_texture_from_pixmap extension which is almost identical to the GLX_texture_from_pixmap extension.
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#include "cogl-texture-pixmap-x11.h"
Add a CoglTexturePixmapX11 texture backend This is a publicly exposed texture backend to create a texture which contains the contents of an X11 pixmap. The API is currently marked as experimental. The backend internally holds a handle to another texture. All of the backend virtuals simply redirect to the internal texture. The texture can optionally be automatically updated if the automatic_updates parameter is TRUE. If set then Cogl will listen for damage events on the pixmap and update the texture accordingly. Alternatively a damage object can be created externally and passed down to Cogl. The updates can be performed with XGetImage, XShmGetImage or the GLX_EXT_texture_pixmap extension. If the TFP extension is used it will optionally try to create a rectangle texture if the driver does not support NPOTs or it is forced through the COGL_PIXMAP_TEXTURE_RECTANGLE or CLUTTER_PIXMAP_TEXTURE_RECTANGLE environment variables. If the GLXFBConfig does not support mipmapping then it will fallback to using X{Shm,}GetImage. It keeps a separate texture around for this so that it can later start using the TFP texture again if the texture is later drawn with mipmaps disabled.
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#define COGL_TEXTURE_PIXMAP_X11(tex) ((CoglTexturePixmapX11 *) tex)
typedef struct _CoglDamageRectangle CoglDamageRectangle;
struct _CoglDamageRectangle
{
unsigned int x1;
unsigned int y1;
unsigned int x2;
unsigned int y2;
};
typedef struct _CoglTexturePixmapX11 CoglTexturePixmapX11;
struct _CoglTexturePixmapX11
{
CoglTexture _parent;
Pixmap pixmap;
CoglHandle tex;
unsigned int depth;
Visual *visual;
unsigned int width;
unsigned int height;
XImage *image;
XShmSegmentInfo shm_info;
Damage damage;
CoglTexturePixmapX11ReportLevel damage_report_level;
gboolean damage_owned;
CoglDamageRectangle damage_rect;
texture-pixmap-x11: Move GLX code to cogl-winsys-glx.c This moves the GLX specific code from cogl-texture-pixmap-x11.c into cogl-winsys-glx.c. If we want the winsys components to by dynamically loadable then we can't have GLX code scattered outside of cogl-winsys-glx.c. This also sets us up for supporting the EGL_texture_from_pixmap extension which is almost identical to the GLX_texture_from_pixmap extension.
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void *winsys;
Add a CoglTexturePixmapX11 texture backend This is a publicly exposed texture backend to create a texture which contains the contents of an X11 pixmap. The API is currently marked as experimental. The backend internally holds a handle to another texture. All of the backend virtuals simply redirect to the internal texture. The texture can optionally be automatically updated if the automatic_updates parameter is TRUE. If set then Cogl will listen for damage events on the pixmap and update the texture accordingly. Alternatively a damage object can be created externally and passed down to Cogl. The updates can be performed with XGetImage, XShmGetImage or the GLX_EXT_texture_pixmap extension. If the TFP extension is used it will optionally try to create a rectangle texture if the driver does not support NPOTs or it is forced through the COGL_PIXMAP_TEXTURE_RECTANGLE or CLUTTER_PIXMAP_TEXTURE_RECTANGLE environment variables. If the GLXFBConfig does not support mipmapping then it will fallback to using X{Shm,}GetImage. It keeps a separate texture around for this so that it can later start using the TFP texture again if the texture is later drawn with mipmaps disabled.
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/* During the pre_paint method, this will be set to TRUE if we
texture-pixmap-x11: Move GLX code to cogl-winsys-glx.c This moves the GLX specific code from cogl-texture-pixmap-x11.c into cogl-winsys-glx.c. If we want the winsys components to by dynamically loadable then we can't have GLX code scattered outside of cogl-winsys-glx.c. This also sets us up for supporting the EGL_texture_from_pixmap extension which is almost identical to the GLX_texture_from_pixmap extension.
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should use the winsys texture, otherwise we will use the regular
Add a CoglTexturePixmapX11 texture backend This is a publicly exposed texture backend to create a texture which contains the contents of an X11 pixmap. The API is currently marked as experimental. The backend internally holds a handle to another texture. All of the backend virtuals simply redirect to the internal texture. The texture can optionally be automatically updated if the automatic_updates parameter is TRUE. If set then Cogl will listen for damage events on the pixmap and update the texture accordingly. Alternatively a damage object can be created externally and passed down to Cogl. The updates can be performed with XGetImage, XShmGetImage or the GLX_EXT_texture_pixmap extension. If the TFP extension is used it will optionally try to create a rectangle texture if the driver does not support NPOTs or it is forced through the COGL_PIXMAP_TEXTURE_RECTANGLE or CLUTTER_PIXMAP_TEXTURE_RECTANGLE environment variables. If the GLXFBConfig does not support mipmapping then it will fallback to using X{Shm,}GetImage. It keeps a separate texture around for this so that it can later start using the TFP texture again if the texture is later drawn with mipmaps disabled.
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texture */
texture-pixmap-x11: Move GLX code to cogl-winsys-glx.c This moves the GLX specific code from cogl-texture-pixmap-x11.c into cogl-winsys-glx.c. If we want the winsys components to by dynamically loadable then we can't have GLX code scattered outside of cogl-winsys-glx.c. This also sets us up for supporting the EGL_texture_from_pixmap extension which is almost identical to the GLX_texture_from_pixmap extension.
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gboolean use_winsys_texture;
Add a CoglTexturePixmapX11 texture backend This is a publicly exposed texture backend to create a texture which contains the contents of an X11 pixmap. The API is currently marked as experimental. The backend internally holds a handle to another texture. All of the backend virtuals simply redirect to the internal texture. The texture can optionally be automatically updated if the automatic_updates parameter is TRUE. If set then Cogl will listen for damage events on the pixmap and update the texture accordingly. Alternatively a damage object can be created externally and passed down to Cogl. The updates can be performed with XGetImage, XShmGetImage or the GLX_EXT_texture_pixmap extension. If the TFP extension is used it will optionally try to create a rectangle texture if the driver does not support NPOTs or it is forced through the COGL_PIXMAP_TEXTURE_RECTANGLE or CLUTTER_PIXMAP_TEXTURE_RECTANGLE environment variables. If the GLXFBConfig does not support mipmapping then it will fallback to using X{Shm,}GetImage. It keeps a separate texture around for this so that it can later start using the TFP texture again if the texture is later drawn with mipmaps disabled.
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};
GQuark
_cogl_handle_texture_pixmap_x11_get_type (void);
#endif /* __COGL_TEXTURE_PIXMAP_X11_PRIVATE_H */
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