3d9f83019d
(cogl_texture_download_from_gl:) Store old blending factors and restore them when done. The lack of ability to retrieve the alpha channel now more noticable in test-cogl-tex-getset since the edges of the hand are not antialiased. * clutter/cogl/gl(es)/cogl-internal.h: Declare cogl_blend_func to avoid "implicit implementation" compile warning.
66 lines
2.0 KiB
C
66 lines
2.0 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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#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 *)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
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#define GE(x) (x);
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#endif
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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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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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