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Diffstat (limited to 'libdimension/dimension/gl.h')
| -rw-r--r-- | libdimension/dimension/gl.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/libdimension/dimension/gl.h b/libdimension/dimension/gl.h new file mode 100644 index 0000000..e27c418 --- /dev/null +++ b/libdimension/dimension/gl.h @@ -0,0 +1,37 @@ +/************************************************************************* + * Copyright (C) 2008 Tavian Barnes <tavianator@gmail.com> * + * * + * This file is part of The Dimension Library. * + * * + * The Dimension 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 3 of the * + * License, or (at your option) any later version. * + * * + * The Dimension 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 program. If not, see * + * <http://www.gnu.org/licenses/>. * + *************************************************************************/ + +/* + * Draw a canvas to a GL framebuffer with glDrawPixels, or read one with + * glReadPixels. Should be fast, so no _async() versions. + */ + +#ifndef DIMENSION_GL_H +#define DIMENSION_GL_H + +#include <stdio.h> + +/* Write canvas to GL framebuffer. Returns 0 on success, nonzero on failure */ +int dmnsn_gl_write_canvas(const dmnsn_canvas *canvas); + +/* Read a canvas from a GL framebuffer. Returns NULL on failure. */ +dmnsn_canvas *dmnsn_gl_read_canvas(); + +#endif /* DIMENSION_GL_H */ |