010d16f647
This makes it possible to integrate existing GLES2 code with applications using Cogl as the rendering api. Currently all GLES2 usage is handled with separate GLES2 contexts to ensure that GLES2 api usage doesn't interfere with Cogl's own use of OpenGL[ES]. The api has been designed though so we can provide tighter integration later. The api would allow us to support GLES2 virtualized on top of an OpenGL/GLX driver as well as GLES2 virtualized on the core rendering api of Cogl itself. Virtualizing the GLES2 support on Cogl will allow us to take advantage of Cogl debugging facilities as well as let us optimize the cost of allocating multiple GLES2 contexts and switching between them which can both be very expensive with many drivers. As as a side effect of this patch Cogl can also now be used as a portable window system binding API for GLES2 as an alternative to EGL. Parts of this patch are based on work done by Tomeu Vizoso <tomeu.vizoso@collabora.com> who did the first iteration of adding GLES2 API support to Cogl so that WebGL support could be added to webkit-clutter. This patch adds a very minimal cogl-gles2-context example that shows how to create a gles2 context, clear the screen to a random color and also draw a triangle with the cogl api. Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit 4bb6eff3dbd50d8fef7d6bdbed55c5aaa70036a8)
149 lines
3.8 KiB
C
149 lines
3.8 KiB
C
/*
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* Cogl
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*
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* An object oriented GL/GLES Abstraction/Utility Layer
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*
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* Copyright (C) 2008,2009 Intel Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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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
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*
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*/
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#ifndef __COGL_H__
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#define __COGL_H__
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#include <glib.h>
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#define __COGL_H_INSIDE__
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#ifdef COGL_ENABLE_EXPERIMENTAL_2_0_API
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#ifndef COGL_ENABLE_EXPERIMENTAL_API
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#define COGL_ENABLE_EXPERIMENTAL_API
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#endif
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#endif
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/* We currently keep gtype integration delimited in case we eventually
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* want to split it out into a separate utility library when Cogl
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* becomes a standalone project. (like cairo-gobject.so)
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*/
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#define _COGL_SUPPORTS_GTYPE_INTEGRATION
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/*
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* API common to the 1.x and 2.0 api...
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*/
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#include <cogl/cogl-defines.h>
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#include <cogl/cogl-object.h>
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#include <cogl/cogl1-context.h>
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#include <cogl/cogl-bitmap.h>
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#include <cogl/cogl-color.h>
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#include <cogl/cogl-matrix.h>
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#include <cogl/cogl-offscreen.h>
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#include <cogl/cogl-primitives.h>
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#include <cogl/cogl-texture.h>
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#include <cogl/cogl-types.h>
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#include <cogl/cogl-version.h>
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/*
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* 1.x only api...
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*/
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#ifndef COGL_ENABLE_EXPERIMENTAL_2_0_API
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#include <cogl/cogl-path.h>
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#include <cogl/cogl-clip-state.h>
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#include <cogl/cogl-vertex-buffer.h>
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#include <cogl/cogl-enum-types.h>
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#include <cogl/cogl-fixed.h>
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#include <cogl/cogl-material-compat.h>
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#include <cogl/cogl-shader.h>
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#endif
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/*
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* 2.0 api that's compatible with the 1.x api...
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*/
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#if defined (COGL_ENABLE_EXPERIMENTAL_API)
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#include <cogl/cogl-swap-chain.h>
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#include <cogl/cogl-renderer.h>
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#include <cogl/cogl-display.h>
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#include <cogl/cogl-context.h>
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#include <cogl/cogl-buffer.h>
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#include <cogl/cogl-pixel-buffer.h>
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#include <cogl/cogl-vector.h>
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#include <cogl/cogl-euler.h>
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#include <cogl/cogl-quaternion.h>
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#include <cogl/cogl-texture-2d.h>
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#include <cogl/cogl-texture-rectangle.h>
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#include <cogl/cogl-texture-3d.h>
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#include <cogl/cogl-texture-2d-sliced.h>
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#include <cogl/cogl-sub-texture.h>
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#include <cogl/cogl-meta-texture.h>
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#include <cogl/cogl-primitive-texture.h>
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#include <cogl/cogl-index-buffer.h>
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#include <cogl/cogl-attribute-buffer.h>
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#include <cogl/cogl-indices.h>
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#include <cogl/cogl-attribute.h>
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#include <cogl/cogl-primitive.h>
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#include <cogl/cogl-depth-state.h>
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#include <cogl/cogl-pipeline.h>
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#include <cogl/cogl-pipeline-state.h>
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#include <cogl/cogl-pipeline-layer-state.h>
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#include <cogl/cogl-snippet.h>
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#include <cogl/cogl-framebuffer.h>
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#include <cogl/cogl-onscreen.h>
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#include <cogl/cogl-poll.h>
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#if defined (COGL_HAS_EGL_PLATFORM_KMS_SUPPORT)
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#include <cogl/cogl-kms-renderer.h>
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#include <cogl/cogl-kms-display.h>
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#endif
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#ifdef COGL_HAS_WIN32_SUPPORT
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#include <cogl/cogl-win32-renderer.h>
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#endif
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#ifdef COGL_HAS_GLIB_SUPPORT
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#include <cogl/cogl-glib-source.h>
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#endif
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/* XXX: This will definitly go away once all the Clutter winsys
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* code has been migrated down into Cogl! */
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#include <cogl/cogl-clutter.h>
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#endif
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#ifdef COGL_HAS_SDL_SUPPORT
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#include <cogl/cogl-sdl.h>
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#endif
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/*
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* 2.0 only api...
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*/
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#ifdef COGL_ENABLE_EXPERIMENTAL_2_0_API
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#include <cogl/cogl2-path.h>
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/* This header will be removed in Cogl 1.12 */
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#include <cogl/cogl2-compatibility.h>
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#endif
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/*
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* API deprecations
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*/
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#include <cogl/cogl-deprecated.h>
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/**
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* SECTION:cogl
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* @short_description: General purpose API
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*
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* General utility functions for COGL.
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*/
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#undef __COGL_H_INSIDE__
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#endif /* __COGL_H__ */
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