82d43ffe64
* clutter/cogl/gl/cogl-texture.c (cogl_texture_polygon) (_cogl_texture_quad_sw, _cogl_texture_quad_hw): * clutter/cogl/gles/cogl-texture.c (cogl_texture_polygon) (_cogl_texture_quad_sw, _cogl_texture_quad_hw): Enable backface culling in GL if it is requested. * clutter/cogl/gles/cogl-texture.c (_cogl_texture_quad_sw) (_cogl_texture_quad_hw): * clutter/cogl/gl/cogl-texture.c (_cogl_texture_quad_sw) (_cogl_texture_quad_hw): Reorder the vertices so that they are counter-clockwise. * clutter/cogl/gles/cogl-context.h (CoglContext): * clutter/cogl/gl/cogl-context.h (CoglContext): Added a flag to store whether backface culling is currently enabled. * clutter/cogl/gles/cogl.c (cogl_enable_backface_culling): * clutter/cogl/gl/cogl.c (cogl_enable_backface_culling): New function * doc/reference/cogl/cogl-sections.txt: Add cogl_enable_backface_culling
74 lines
2.1 KiB
C
74 lines
2.1 KiB
C
/*
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* Clutter COGL
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*
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* A basic GL/GLES Abstraction/Utility Layer
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*
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* Authored By Matthew Allum <mallum@openedhand.com>
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*
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* Copyright (C) 2007 OpenedHand
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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, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __COGL_INTERNAL_H
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#define __COGL_INTERNAL_H
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#define COGL_DEBUG 0
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#if COGL_DEBUG
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#include <stdio.h>
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const char *_cogl_error_string(GLenum errorCode);
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#define GE(x...) G_STMT_START { \
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GLenum err; \
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(x); \
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while ((err = glGetError()) != GL_NO_ERROR) { \
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fprintf(stderr, "glError: %s caught at %s:%u\n", \
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(char *)_cogl_error_string(err), \
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__FILE__, __LINE__); \
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} \
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} G_STMT_END
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#else /* COGL_DEBUG */
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#define GE(x) (x);
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#endif /* COGL_DEBUG */
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#define COGL_ENABLE_BLEND (1<<1)
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#define COGL_ENABLE_TEXTURE_2D (1<<2)
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#define COGL_ENABLE_ALPHA_TEST (1<<3)
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#define COGL_ENABLE_TEXTURE_RECT (1<<4)
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#define COGL_ENABLE_VERTEX_ARRAY (1<<5)
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#define COGL_ENABLE_TEXCOORD_ARRAY (1<<6)
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#define COGL_ENABLE_BACKFACE_CULLING (1<<7)
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gint
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_cogl_get_format_bpp (CoglPixelFormat format);
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void
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cogl_enable (gulong flags);
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gulong
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cogl_get_enable ();
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void
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cogl_blend_func (COGLenum src_factor,
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COGLenum dst_factor);
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#endif /* __COGL_INTERNAL_H */
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