merge total remake

src/framework/graphics/texturemanager.cpp

@@ -0,0 +1,55 @@
+#include "texturemanager.h"
+#include "animatedtexture.h"
+#include <core/resourcemanager.h>
+#include <thirdparty/apngloader.h>
+
+TextureManager g_textures;
+
+TexturePtr TextureManager::getTexture(const std::string& textureFile)
+{
+    TexturePtr texture;
+
+    // check if the texture is already loaded
+    auto it = m_textures.find(textureFile);
+    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
+            if(!boost::ends_with(textureFile, ".png"))
+                throw std::logic_error("texture file format no supported");
+
+            // load texture file data
+            std::stringstream fin;
+            g_resources.loadFile(textureFile, fin);
+            texture = loadPNG(fin);
+        } catch(std::exception& e) {
+            logError("ERROR: unable to load texture '",textureFile,"': ", e.what());
+        }
+    }
+
+    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;
+}