tibia-client/src/otclient/core/spritemanager.cpp

137 lines
4.0 KiB
C++

/*
* Copyright (c) 2010-2012 OTClient <https://github.com/edubart/otclient>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "spritemanager.h"
#include <framework/core/resourcemanager.h>
#include <framework/core/filestream.h>
#include <framework/graphics/image.h>
SpriteManager g_sprites;
SpriteManager::SpriteManager()
{
m_spritesCount = 0;
m_signature = 0;
}
bool SpriteManager::load(const std::string& file)
{
try {
m_spritesFile = g_resources.openFile(file);
if(!m_spritesFile)
return false;
// cache file buffer to avoid lags from hard drive
m_spritesFile->cache();
m_signature = m_spritesFile->getU32();
m_spritesCount = m_spritesFile->getU16();
m_loaded = true;
return true;
} catch(stdext::exception& e) {
g_logger.error(stdext::format("Failed to load sprites from '%s': %s", file, e.what()));
return false;
}
}
void SpriteManager::unload()
{
m_spritesCount = 0;
m_signature = 0;
}
ImagePtr SpriteManager::getSpriteImage(int id)
{
if(id == 0)
return nullptr;
m_spritesFile->seek(((id-1) * 4) + 6);
uint32 spriteAddress = m_spritesFile->getU32();
// no sprite? return an empty texture
if(spriteAddress == 0)
return nullptr;
m_spritesFile->seek(spriteAddress);
// skip color key
m_spritesFile->getU8();
m_spritesFile->getU8();
m_spritesFile->getU8();
uint16 pixelDataSize = m_spritesFile->getU16();
enum {
SPRITE_SIZE = 32,
SPRITE_DATA_SIZE = SPRITE_SIZE*SPRITE_SIZE*4
};
ImagePtr image(new Image(Size(SPRITE_SIZE, SPRITE_SIZE)));
uint8 *pixels = image->getPixelData();
int writePos = 0;
int read = 0;
// decompress pixels
while(read < pixelDataSize) {
uint16 transparentPixels = m_spritesFile->getU16();
uint16 coloredPixels = m_spritesFile->getU16();
if(writePos + transparentPixels*4 + coloredPixels*3 >= SPRITE_DATA_SIZE) {
g_logger.warning(stdext::format("corrupt sprite id %d", id));
return nullptr;
}
for(int i = 0; i < transparentPixels; i++) {
pixels[writePos + 0] = 0x00;
pixels[writePos + 1] = 0x00;
pixels[writePos + 2] = 0x00;
pixels[writePos + 3] = 0x00;
writePos += 4;
}
for(int i = 0; i < coloredPixels; i++) {
pixels[writePos + 0] = m_spritesFile->getU8();
pixels[writePos + 1] = m_spritesFile->getU8();
pixels[writePos + 2] = m_spritesFile->getU8();
pixels[writePos + 3] = 0xFF;
writePos += 4;
}
read += 4 + (3 * coloredPixels);
}
// fill remaining pixels with alpha
while(writePos < SPRITE_DATA_SIZE) {
pixels[writePos + 0] = 0x00;
pixels[writePos + 1] = 0x00;
pixels[writePos + 2] = 0x00;
pixels[writePos + 3] = 0x00;
writePos += 4;
}
return image;
}