144 lines
4.5 KiB
C++
144 lines
4.5 KiB
C++
/*
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* Copyright (c) 2010-2013 OTClient <https://github.com/edubart/otclient>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "spritemanager.h"
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#include "game.h"
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#include <framework/core/resourcemanager.h>
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#include <framework/core/filestream.h>
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#include <framework/graphics/image.h>
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SpriteManager g_sprites;
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SpriteManager::SpriteManager()
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{
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m_spritesCount = 0;
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m_signature = 0;
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}
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void SpriteManager::terminate()
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{
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unload();
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}
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bool SpriteManager::loadSpr(const std::string& file)
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{
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m_spritesCount = 0;
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m_signature = 0;
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m_loaded = false;
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try {
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m_spritesFile = g_resources.openFile(file);
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// cache file buffer to avoid lags from hard drive
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m_spritesFile->cache();
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m_signature = m_spritesFile->getU32();
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m_spritesCount = g_game.getFeature(Otc::GameSpritesU32) ? m_spritesFile->getU32() : m_spritesFile->getU16();
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m_spritesOffset = m_spritesFile->tell();
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m_loaded = true;
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return true;
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} catch(stdext::exception& e) {
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g_logger.error(stdext::format("Failed to load sprites from '%s': %s", file, e.what()));
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return false;
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}
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}
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void SpriteManager::unload()
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{
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m_spritesCount = 0;
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m_signature = 0;
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m_spritesFile = nullptr;
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}
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ImagePtr SpriteManager::getSpriteImage(int id)
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{
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try {
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enum {
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SPRITE_SIZE = 32,
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SPRITE_DATA_SIZE = SPRITE_SIZE*SPRITE_SIZE*4
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};
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if(id == 0 || !m_spritesFile)
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return nullptr;
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m_spritesFile->seek(((id-1) * 4) + m_spritesOffset);
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uint32 spriteAddress = m_spritesFile->getU32();
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// no sprite? return an empty texture
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if(spriteAddress == 0)
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return nullptr;
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m_spritesFile->seek(spriteAddress);
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// skip color key
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m_spritesFile->getU8();
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m_spritesFile->getU8();
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m_spritesFile->getU8();
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uint16 pixelDataSize = m_spritesFile->getU16();
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ImagePtr image(new Image(Size(SPRITE_SIZE, SPRITE_SIZE)));
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uint8 *pixels = image->getPixelData();
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int writePos = 0;
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int read = 0;
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// decompress pixels
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while(read < pixelDataSize && writePos < SPRITE_DATA_SIZE) {
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uint16 transparentPixels = m_spritesFile->getU16();
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uint16 coloredPixels = m_spritesFile->getU16();
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for(int i = 0; i < transparentPixels && writePos < SPRITE_DATA_SIZE; i++) {
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pixels[writePos + 0] = 0x00;
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pixels[writePos + 1] = 0x00;
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pixels[writePos + 2] = 0x00;
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pixels[writePos + 3] = 0x00;
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writePos += 4;
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}
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for(int i = 0; i < coloredPixels && writePos < SPRITE_DATA_SIZE; i++) {
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pixels[writePos + 0] = m_spritesFile->getU8();
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pixels[writePos + 1] = m_spritesFile->getU8();
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pixels[writePos + 2] = m_spritesFile->getU8();
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pixels[writePos + 3] = 0xFF;
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writePos += 4;
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}
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read += 4 + (3 * coloredPixels);
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}
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// fill remaining pixels with alpha
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while(writePos < SPRITE_DATA_SIZE) {
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pixels[writePos + 0] = 0x00;
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pixels[writePos + 1] = 0x00;
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pixels[writePos + 2] = 0x00;
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pixels[writePos + 3] = 0x00;
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writePos += 4;
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}
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return image;
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} catch(stdext::exception& e) {
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g_logger.error(stdext::format("Failed to get sprite id %d: %s", id, e.what()));
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return nullptr;
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}
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}
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