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75 lines
1.6 KiB
C++
75 lines
1.6 KiB
C++
/*
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* SDLImageLoader.cpp, part of VCMI engine
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*
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* Authors: listed in file AUTHORS in main folder
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*
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* License: GNU General Public License v2.0 or later
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* Full text of license available in license.txt file, in main folder
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*
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*/
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#include "StdInc.h"
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#include "SDLImageLoader.h"
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#include "SDLImage.h"
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#include "../../lib/Point.h"
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#include <SDL_surface.h>
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SDLImageLoader::SDLImageLoader(SDLImage * Img):
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image(Img),
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lineStart(nullptr),
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position(nullptr)
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{
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}
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void SDLImageLoader::init(Point SpriteSize, Point Margins, Point FullSize, SDL_Color *pal)
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{
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//Init image
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image->surf = SDL_CreateRGBSurface(0, SpriteSize.x, SpriteSize.y, 8, 0, 0, 0, 0);
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image->margins = Margins;
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image->fullSize = FullSize;
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//Prepare surface
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SDL_Palette * p = SDL_AllocPalette(SDLImage::DEFAULT_PALETTE_COLORS);
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SDL_SetPaletteColors(p, pal, 0, SDLImage::DEFAULT_PALETTE_COLORS);
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SDL_SetSurfacePalette(image->surf, p);
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SDL_FreePalette(p);
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SDL_LockSurface(image->surf);
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lineStart = position = (ui8*)image->surf->pixels;
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}
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inline void SDLImageLoader::load(size_t size, const ui8 * data)
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{
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if (size)
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{
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memcpy((void *)position, data, size);
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position += size;
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}
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}
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inline void SDLImageLoader::load(size_t size, ui8 color)
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{
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if (size)
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{
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memset((void *)position, color, size);
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position += size;
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}
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}
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inline void SDLImageLoader::endLine()
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{
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lineStart += image->surf->pitch;
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position = lineStart;
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}
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SDLImageLoader::~SDLImageLoader()
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{
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SDL_UnlockSurface(image->surf);
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SDL_SetColorKey(image->surf, SDL_TRUE, 0);
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//TODO: RLE if compressed and bpp>1
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}
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