tibia-client/src/framework/graphics/texturemanager.cpp

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/*
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* Copyright (c) 2010-2012 OTClient <https://github.com/edubart/otclient>
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*
* 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.
*/
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#include "texturemanager.h"
#include "animatedtexture.h"
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#include "graphics.h"
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#include <framework/core/resourcemanager.h>
#include <framework/thirdparty/apngloader.h>
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TextureManager g_textures;
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TexturePtr TextureManager::getTexture(const std::string& fileName)
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{
TexturePtr texture;
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// before must resolve filename to full path
std::string filePath = g_resources.resolvePath(fileName);
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// check if the texture is already loaded
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auto it = m_textures.find(filePath);
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if(it != m_textures.end()) {
if(it->second.expired())
m_textures.erase(it);
else
texture = it->second.lock();
}
// texture not found, load it
if(!texture) {
try {
// currently only png textures are supported
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if(!boost::ends_with(filePath, ".png"))
stdext::throw_exception("texture file format no supported");
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// load texture file data
std::stringstream fin;
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g_resources.loadFile(filePath, fin);
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texture = loadPNG(fin);
} catch(stdext::exception& e) {
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logError("unable to load texture '", fileName, "': ", e.what());
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texture = g_graphics.getEmptyTexture();
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}
if(texture)
m_textures[filePath] = texture;
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}
return texture;
}
TexturePtr TextureManager::loadPNG(std::stringstream& file)
{
TexturePtr texture;
apng_data apng;
if(load_apng(file, &apng) == 0) {
if(apng.num_frames > 1) { // animated texture
uchar *framesdata = apng.pdata + (apng.first_frame * apng.width * apng.height * apng.bpp);
texture = TexturePtr(new AnimatedTexture(apng.width, apng.height, apng.bpp, apng.num_frames, framesdata, (int*)apng.frames_delay));
} else
texture = TexturePtr(new Texture(apng.width, apng.height, apng.bpp, apng.pdata));
free_apng(&apng);
}
return texture;
}