From 7b09710392d35fb55b52031d447a542d99fc6b4b Mon Sep 17 00:00:00 2001 From: Tavian Barnes Date: Tue, 19 Aug 2014 17:10:03 -0400 Subject: Modularize the libdimension codebase. --- libdimension/dimension/canvas/gl.h | 52 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 libdimension/dimension/canvas/gl.h (limited to 'libdimension/dimension/canvas/gl.h') diff --git a/libdimension/dimension/canvas/gl.h b/libdimension/dimension/canvas/gl.h new file mode 100644 index 0000000..c2d77a1 --- /dev/null +++ b/libdimension/dimension/canvas/gl.h @@ -0,0 +1,52 @@ +/************************************************************************* + * Copyright (C) 2009-2014 Tavian Barnes * + * * + * 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 * + * . * + *************************************************************************/ + +/** + * @file + * OpenGL export/import of canvases. + */ + +#ifndef DMNSN_CANVAS_H +#error "Please include instead of this header directly." +#endif + +/** + * Optimize a canvas for GL drawing + * @param[in] pool The memory pool to allocate from. + * @param[in,out] canvas The canvas to optimize. + * @return Whether the canvas was successfully optimized. + */ +int dmnsn_gl_optimize_canvas(dmnsn_pool *pool, dmnsn_canvas *canvas); + +/** + * Write canvas to GL framebuffer. + * @param[in] canvas The canvas to draw. + * @return 0 on success, non-zero on failure. + */ +int dmnsn_gl_write_canvas(const dmnsn_canvas *canvas); + +/** + * Read a canvas from a GL framebuffer. + * @param[in] canvas The canvas to write to. + * @param[in] x0 The \a x screen coordinate to start copying from. + * @param[in] y0 The \a y screen coordinate to start copying from. + * @return 0 on success, non-zero on failure. + */ +int dmnsn_gl_read_canvas(dmnsn_canvas *canvas, size_t x0, size_t y0); -- cgit v1.2.3