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19ca856810
We want to be able to retrieve the XVisualInfo used when creating the GL context under GLX and EGL-X11, so that we can use the visual before we have an onscreen frame buffer.
192 lines
6.5 KiB
C
192 lines
6.5 KiB
C
/*
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* Cogl
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*
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* A Low Level GPU Graphics and Utilities API
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*
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* Copyright (C) 2011 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#if !defined(__COGL_XLIB_H_INSIDE__) && !defined(COGL_COMPILATION)
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#error "Only <cogl/cogl-xlib.h> can be included directly."
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#endif
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#ifndef __COGL_XLIB_RENDERER_H__
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#define __COGL_XLIB_RENDERER_H__
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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/* NB: this is a top-level header that can be included directly but we
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* want to be careful not to define __COGL_H_INSIDE__ when this is
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* included internally while building Cogl itself since
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* __COGL_H_INSIDE__ is used in headers to guard public vs private api
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* definitions
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*/
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#ifndef COGL_COMPILATION
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/* Note: When building Cogl .gir we explicitly define
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* __COGL_H_INSIDE__ */
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#ifndef __COGL_H_INSIDE__
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#define __COGL_H_INSIDE__
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#define __COGL_XLIB_RENDERER_H_MUST_UNDEF_COGL_H_INSIDE__
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#endif
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#endif /* COGL_COMPILATION */
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#include <cogl/cogl-renderer.h>
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COGL_BEGIN_DECLS
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/*
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* cogl_xlib_renderer_handle_event:
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* @renderer: a #CoglRenderer
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* @event: pointer to an XEvent structure
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*
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* This function processes a single event; it can be used to hook into
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* external event retrieval (for example that done by Clutter or
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* GDK).
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*
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* Return value: #CoglFilterReturn. %COGL_FILTER_REMOVE indicates that
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* Cogl has internally handled the event and the caller should do no
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* further processing. %COGL_FILTER_CONTINUE indicates that Cogl is
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* either not interested in the event, or has used the event to update
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* internal state without taking any exclusive action.
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*/
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CoglFilterReturn
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cogl_xlib_renderer_handle_event (CoglRenderer *renderer,
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XEvent *event);
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/*
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* CoglXlibFilterFunc:
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* @event: pointer to an XEvent structure
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* @data: the data that was given when the filter was added
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*
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* A callback function that can be registered with
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* cogl_xlib_renderer_add_filter(). The function should return
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* %COGL_FILTER_REMOVE if it wants to prevent further processing or
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* %COGL_FILTER_CONTINUE otherwise.
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*/
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typedef CoglFilterReturn (* CoglXlibFilterFunc) (XEvent *event,
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void *data);
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/*
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* cogl_xlib_renderer_add_filter:
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* @renderer: a #CoglRenderer
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* @func: the callback function
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* @data: user data passed to @func when called
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*
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* Adds a callback function that will receive all native events. The
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* function can stop further processing of the event by return
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* %COGL_FILTER_REMOVE.
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*/
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void
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cogl_xlib_renderer_add_filter (CoglRenderer *renderer,
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CoglXlibFilterFunc func,
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void *data);
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/*
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* cogl_xlib_renderer_remove_filter:
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* @renderer: a #CoglRenderer
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* @func: the callback function
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* @data: user data given when the callback was installed
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*
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* Removes a callback that was previously added with
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* cogl_xlib_renderer_add_filter().
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*/
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void
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cogl_xlib_renderer_remove_filter (CoglRenderer *renderer,
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CoglXlibFilterFunc func,
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void *data);
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/*
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* cogl_xlib_renderer_get_foreign_display:
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* @renderer: a #CoglRenderer
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*
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* Return value: the foreign Xlib display that will be used by any Xlib based
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* winsys backend. The display needs to be set with
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* cogl_xlib_renderer_set_foreign_display() before this function is called.
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*/
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Display *
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cogl_xlib_renderer_get_foreign_display (CoglRenderer *renderer);
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/*
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* cogl_xlib_renderer_set_foreign_display:
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* @renderer: a #CoglRenderer
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*
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* Sets a foreign Xlib display that Cogl will use for and Xlib based winsys
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* backend.
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*
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* Note that calling this function will automatically call
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* cogl_xlib_renderer_set_event_retrieval_enabled() to disable Cogl's
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* event retrieval. Cogl still needs to see all of the X events so the
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* application should also use cogl_xlib_renderer_handle_event() if it
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* uses this function.
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*/
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void
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cogl_xlib_renderer_set_foreign_display (CoglRenderer *renderer,
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Display *display);
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/**
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* cogl_xlib_renderer_set_event_retrieval_enabled:
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* @renderer: a #CoglRenderer
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* @enable: The new value
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*
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* Sets whether Cogl should automatically retrieve events from the X
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* display. This defaults to %TRUE unless
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* cogl_xlib_renderer_set_foreign_display() is called. It can be set
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* to %FALSE if the application wants to handle its own event
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* retrieval. Note that Cogl still needs to see all of the X events to
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* function properly so the application should call
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* cogl_xlib_renderer_handle_event() for each event if it disables
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* automatic event retrieval.
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*
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* Since: 1.10
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* Stability: unstable
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*/
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void
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cogl_xlib_renderer_set_event_retrieval_enabled (CoglRenderer *renderer,
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CoglBool enable);
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Display *
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cogl_xlib_renderer_get_display (CoglRenderer *renderer);
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XVisualInfo *
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cogl_xlib_renderer_get_visual_info (CoglRenderer *renderer);
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COGL_END_DECLS
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/* The gobject introspection scanner seems to parse public headers in
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* isolation which means we need to be extra careful about how we
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* define and undefine __COGL_H_INSIDE__ used to detect when internal
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* headers are incorrectly included by developers. In the gobject
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* introspection case we have to manually define __COGL_H_INSIDE__ as
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* a commandline argument for the scanner which means we must be
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* careful not to undefine it in a header...
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*/
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#ifdef __COGL_XLIB_RENDERER_H_MUST_UNDEF_COGL_H_INSIDE__
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#undef __COGL_H_INSIDE__
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#undef __COGL_XLIB_RENDERER_H_MUST_UNDEF_COGL_H_INSIDE__
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#endif
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#endif /* __COGL_XLIB_RENDERER_H__ */
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