diff options
Diffstat (limited to 'src/viewport_sprite_sorter.h')
| -rw-r--r-- | src/viewport_sprite_sorter.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/src/viewport_sprite_sorter.h b/src/viewport_sprite_sorter.h new file mode 100644 index 000000000..19b903e15 --- /dev/null +++ b/src/viewport_sprite_sorter.h @@ -0,0 +1,58 @@ +/* $Id$ */ + +/* + * 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 viewport_sprite_sorter.h Types related to sprite sorting. */ + +#include "stdafx.h" +#include "core/smallvec_type.hpp" +#include "gfx_type.h" + +#ifndef VIEWPORT_SPRITE_SORTER_H +#define VIEWPORT_SPRITE_SORTER_H + +/** Parent sprite that should be drawn */ +struct ParentSpriteToDraw { + /* Block of 16B loadable in xmm register */ + int32 xmin; ///< minimal world X coordinate of bounding box + int32 ymin; ///< minimal world Y coordinate of bounding box + int32 zmin; ///< minimal world Z coordinate of bounding box + int32 x; ///< screen X coordinate of sprite + + /* Second block of 16B loadable in xmm register */ + int32 xmax; ///< maximal world X coordinate of bounding box + int32 ymax; ///< maximal world Y coordinate of bounding box + int32 zmax; ///< maximal world Z coordinate of bounding box + int32 y; ///< screen Y coordinate of sprite + + SpriteID image; ///< sprite to draw + PaletteID pal; ///< palette to use + const SubSprite *sub; ///< only draw a rectangular part of the sprite + + int32 left; ///< minimal screen X coordinate of sprite (= x + sprite->x_offs), reference point for child sprites + int32 top; ///< minimal screen Y coordinate of sprite (= y + sprite->y_offs), reference point for child sprites + + int first_child; ///< the first child to draw. + bool comparison_done; ///< Used during sprite sorting: true if sprite has been compared with all other sprites +}; + +typedef SmallVector<ParentSpriteToDraw*, 64> ParentSpriteToSortVector; + +/** Type for method for checking whether a viewport sprite sorter exists. */ +typedef bool (*VpSorterChecker)(); +/** Type for the actual viewport sprite sorter. */ +typedef void (*VpSpriteSorter)(ParentSpriteToSortVector *psd); + +#ifdef WITH_SSE +bool ViewportSortParentSpritesSSE41Checker(); +void ViewportSortParentSpritesSSE41(ParentSpriteToSortVector *psdv); +#endif + +void InitializeSpriteSorter(); + +#endif /* VIEWPORT_SPRITE_SORTER_H */ |