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57 lines
1.7 KiB
57 lines
1.7 KiB
#include "texturemanager.h"
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#include "animatedtexture.h"
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#include <framework/core/resourcemanager.h>
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#include <framework/thirdparty/apngloader.h>
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TextureManager g_textures;
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TexturePtr TextureManager::getTexture(const std::string& textureFile)
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{
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TexturePtr texture;
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// check if the texture is already loaded
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auto it = m_textures.find(textureFile);
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if(it != m_textures.end()) {
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if(it->second.expired())
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m_textures.erase(it);
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else
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texture = it->second.lock();
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}
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// texture not found, load it
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if(!texture) {
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try {
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// currently only png textures are supported
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if(!boost::ends_with(textureFile, ".png"))
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throw std::logic_error("texture file format no supported");
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// load texture file data
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std::stringstream fin;
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g_resources.loadFile(textureFile, fin);
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texture = loadPNG(fin);
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} catch(std::exception& e) {
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logError("ERROR: unable to load texture '",textureFile,"': ", e.what());
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}
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}
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return texture;
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}
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TexturePtr TextureManager::loadPNG(std::stringstream& file)
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{
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TexturePtr texture;
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apng_data apng;
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if(load_apng(file, &apng) == 0) {
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if(apng.num_frames > 1) { // animated texture
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uchar *framesdata = apng.pdata + (apng.first_frame * apng.width * apng.height * apng.bpp);
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texture = TexturePtr(new AnimatedTexture(apng.width, apng.height, apng.bpp, apng.num_frames, framesdata, (int*)apng.frames_delay));
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} else
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texture = TexturePtr(new Texture(apng.width, apng.height, apng.bpp, apng.pdata));
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free_apng(&apng);
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}
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return texture;
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}
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