mutter/gles/cogl-context.h
Neil Roberts 1b619c3843 Bug 1074 - FBOs on GLES
* clutter/cogl/gles/cogl-fbo.c: Copy the code from gl/cogl-fbo but
	use the API calls directly instead of loading an extension because
	it is part of the core in GLES 2.

	* clutter/cogl/gles/cogl.c (_cogl_features_init): Report
	COGL_FEATURE_OFFSCREEN.

	* clutter/cogl/gles/cogl-fbo.h (CoglFbo): Add gl_stencil_handle.

	* clutter/cogl/gles/cogl-context.h (CoglContext): Add
	viewport_store

	* tests/test-fbo.c (make_shader): Conditionally use the GLES 2
	names of the shader variables
2008-10-29 14:52:48 +00:00

101 lines
2.6 KiB
C

/*
* Clutter COGL
*
* A basic GL/GLES Abstraction/Utility Layer
*
* Authored By Matthew Allum <mallum@openedhand.com>
*
* Copyright (C) 2007 OpenedHand
*
* 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __COGL_CONTEXT_H
#define __COGL_CONTEXT_H
#include "cogl-primitives.h"
#include "cogl-gles2-wrapper.h"
typedef struct
{
GLfixed v[3];
GLfixed t[2];
GLfixed c[4];
} CoglTextureGLVertex;
typedef struct
{
/* Features cache */
CoglFeatureFlags feature_flags;
gboolean features_cached;
GLint num_stencil_bits;
/* Enable cache */
gulong enable_flags;
guint8 color_alpha;
COGLenum blend_src_factor;
COGLenum blend_dst_factor;
gboolean enable_backface_culling;
/* Primitives */
CoglFixedVec2 path_start;
CoglFixedVec2 path_pen;
CoglFixedVec2 *path_nodes;
guint path_nodes_cap;
guint path_nodes_size;
CoglFixedVec2 path_nodes_min;
CoglFixedVec2 path_nodes_max;
/* Cache of inverse projection matrix */
ClutterFixed inverse_projection[16];
/* Textures */
GArray *texture_handles;
CoglTextureGLVertex *texture_vertices;
gulong texture_vertices_size;
/* Framebuffer objects */
GArray *fbo_handles;
CoglBufferTarget draw_buffer;
/* Shaders */
GArray *program_handles;
GArray *shader_handles;
#ifdef HAVE_COGL_GLES2
CoglGles2Wrapper gles2;
/* Viewport store for FBOs. Needed because glPushAttrib() isn't
supported */
GLint viewport_store[4];
#endif
} CoglContext;
CoglContext *
_cogl_context_get_default ();
/* Obtains the context and returns retval if NULL */
#define _COGL_GET_CONTEXT(ctxvar, retval) \
CoglContext *ctxvar = _cogl_context_get_default (); \
if (ctxvar == NULL) return retval;
#define NO_RETVAL
#endif /* __COGL_CONTEXT_H */