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Location: cpp/openttd-patchpack/source/src/heightmap.h - annotation
r24860:fb2788d47d86
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Codechange: [OSX] Only keep a total dirty rect for drawing.
When drawing an 8bpp screen buffer, palette resolving was done for each
dirty rectangle. In areas with high activity, this would mean a pixel might
have been resolved multiple times. Also, if too many individual updates
were queued, the whole screen would be refreshed, even if unnecessary.
All other drivers only keep one overall dirty rect, so do it here as well.
When drawing an 8bpp screen buffer, palette resolving was done for each
dirty rectangle. In areas with high activity, this would mean a pixel might
have been resolved multiple times. Also, if too many individual updates
were queued, the whole screen would be refreshed, even if unnecessary.
All other drivers only keep one overall dirty rect, so do it here as well.
r12768:980ae0491352 r12768:980ae0491352 r12768:980ae0491352 r12768:980ae0491352 r12768:980ae0491352 r12768:980ae0491352 r12768:980ae0491352 r9111:983de9c5a848 r6179:c0508e7aefec r5475:3f5cd13d1b63 r5475:3f5cd13d1b63 r5475:3f5cd13d1b63 r22443:89afba6ce61a r22443:89afba6ce61a r17098:afa706d65a49 r5475:3f5cd13d1b63 r5475:3f5cd13d1b63 r5475:3f5cd13d1b63 r15173:a59afd6301a6 r6179:c0508e7aefec r6179:c0508e7aefec r5475:3f5cd13d1b63 r5475:3f5cd13d1b63 r22443:89afba6ce61a r22443:89afba6ce61a r5475:3f5cd13d1b63 r11330:5d2958291198 r11330:5d2958291198 r5475:3f5cd13d1b63 | /*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD 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 General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file heightmap.h Functions related to creating heightmaps from files. */
#ifndef HEIGHTMAP_H
#define HEIGHTMAP_H
#include "fileio_type.h"
/**
* Order of these enums has to be the same as in lang/english.txt
* Otherwise you will get inconsistent behaviour.
*/
enum HeightmapRotation {
HM_COUNTER_CLOCKWISE, ///< Rotate the map counter clockwise 45 degrees
HM_CLOCKWISE, ///< Rotate the map clockwise 45 degrees
};
bool GetHeightmapDimensions(DetailedFileType dft, const char *filename, uint *x, uint *y);
void LoadHeightmap(DetailedFileType dft, const char *filename);
void FlatEmptyWorld(byte tile_height);
void FixSlopes();
#endif /* HEIGHTMAP_H */
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