mirror of
https://github.com/brl/mutter.git
synced 2024-11-30 03:50:47 -05:00
e9b1ca0165
This adds a new experimental function (you need to define COGL_ENABLE_EXPERIMENTAL_API to access it) which takes us towards being able to have a standalone Cogl API. This is really a minor aesthetic change for now since all the GL context creation code still lives in Clutter but it's a step forward none the less. Since our current designs introduce a CoglDisplay object as something that would be passed to the context constructor this provides a stub cogl-display.h with CoglDisplay typedef. _cogl_context_get_default() which Clutter uses to access the Cogl context has been modified to use cogl_context_new() to initialize the default context. There is one rather nasty hack used in this patch which is that the implementation of cogl_context_new() has to forcibly make the allocated context become the default context because currently all the code in Cogl assumes it can access the context using _COGL_GET_CONTEXT including code used to initialize the context.
79 lines
2.6 KiB
C
79 lines
2.6 KiB
C
/*
|
|
* 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/>.
|
|
*
|
|
* Authors:
|
|
* Robert Bragg <robert@linux.intel.com>
|
|
*
|
|
*/
|
|
|
|
#if !defined(__COGL_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
|
|
#error "Only <cogl/cogl.h> can be included directly."
|
|
#endif
|
|
|
|
#ifndef __COGL_DISPLAY_H__
|
|
#define __COGL_DISPLAY_H__
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
/**
|
|
* SECTION:cogl-display
|
|
* @short_description: Represents a display pipeline
|
|
*
|
|
* TODO: We still need to decide if we really need this object or if
|
|
* it's enough to just have the CoglSwapChain CoglOnscreenTemplate
|
|
* objects.
|
|
*
|
|
* The basic intention is for this object to let the application
|
|
* specify its display preferences before creating a context, and
|
|
* there are a few different aspects to this...
|
|
*
|
|
* Firstly there is the physical display pipeline that is currently
|
|
* being used including the digital to analogue conversion hardware
|
|
* and the screen the user sees. Although we don't have a plan to
|
|
* expose all the advanced features of arbitrary display hardware with
|
|
* a Cogl API, some backends may want to expose limited control over
|
|
* this hardware via Cogl and simpler features like providing a list
|
|
* of modes to choose from in a UI could be nice too.
|
|
*
|
|
* Another aspect is that the display configuration may be tightly
|
|
* related to how onscreen framebuffers should be configured. In fact
|
|
* one of the early rationals for this object was to let us handle
|
|
* GLX's requirement that framebuffers must be "compatible" with the
|
|
* fbconfig associated with the current context meaning we have to
|
|
* force the user to describe how they would like to create their
|
|
* onscreen windows before we can choose a suitable fbconfig and
|
|
* create a GLContext.
|
|
*
|
|
* TODO: continue this thought process and come to a decision...
|
|
*/
|
|
|
|
typedef struct _CoglDisplay CoglDisplay;
|
|
|
|
#define COGL_DISPLAY(OBJECT) ((CoglDisplay *)OBJECT)
|
|
|
|
CoglDisplay *
|
|
cogl_display_new (CoglDisplay *display);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __COGL_DISPLAY_H__ */
|
|
|