Initial support for FBX embedded textures

code/FBXConverter.cpp

@@ -54,6 +54,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "FBXUtil.h"
 #include "FBXProperties.h"
 #include "FBXImporter.h"
+#include "StringComparison.h"
 #include "../include/assimp/scene.h"
 #include <boost/foreach.hpp>
 #include <boost/scoped_array.hpp>
@@ -148,6 +149,7 @@ public:
         std::for_each(animations.begin(),animations.end(),Util::delete_fun<aiAnimation>());
         std::for_each(lights.begin(),lights.end(),Util::delete_fun<aiLight>());
         std::for_each(cameras.begin(),cameras.end(),Util::delete_fun<aiCamera>());
+        std::for_each(textures.begin(),textures.end(),Util::delete_fun<aiTexture>());
     }
 
 
@@ -1449,6 +1451,36 @@ private:
         return static_cast<unsigned int>(materials.size() - 1);
     }
 
+    // ------------------------------------------------------------------------------------------------
+    // Video -> aiTexture
+    unsigned int ConvertVideo(const Video& video)
+    {
+        // generate empty output texture
+        aiTexture* out_tex = new aiTexture();
+        textures.push_back(out_tex);
+
+        // assuming the texture is compressed
+        out_tex->mWidth = static_cast<unsigned int>(video.ContentLength()); // total data size
+        out_tex->mHeight = 0; // fixed to 0
+
+        // steal the data from the Video to avoid an additional copy
+        out_tex->pcData = reinterpret_cast<aiTexel*>( const_cast<Video&>(video).RelinquishContent() );
+
+        // try to extract a hint from the file extension
+        const std::string& filename = video.FileName().empty() ? video.RelativeFilename() : video.FileName();
+        std::string ext = BaseImporter::GetExtension(filename);
+
+        if(ext == "jpeg") {
+            ext = "jpg";
+        }
+
+        if(ext.size() <= 3) {
+            memcpy(out_tex->achFormatHint, ext.c_str(), ext.size());
+        }
+
+        return static_cast<unsigned int>(textures.size() - 1);
+    }
+
 
     // ------------------------------------------------------------------------------------------------
     void TrySetTextureProperties(aiMaterial* out_mat, const TextureMap& textures,
@@ -1466,6 +1498,24 @@ private:
             aiString path;
             path.Set(tex->RelativeFilename());
 
+            const Video* media = tex->Media();
+            if(media != 0) {
+                unsigned int index;
+
+                VideoMap::const_iterator it = textures_converted.find(media);
+                if(it != textures_converted.end()) {
+                    index = (*it).second;
+                }
+                else {
+                    index = ConvertVideo(*media);
+                    textures_converted[media] = index;
+                }
+
+                // setup texture reference string (copied from ColladaLoader::FindFilenameForEffectTexture)
+                path.data[0] = '*';
+                path.length = 1 + ASSIMP_itoa10(path.data + 1, MAXLEN - 1, index);
+            }
+
             out_mat->AddProperty(&path,_AI_MATKEY_TEXTURE_BASE,target,0);
 
             aiUVTransform uvTrafo;
@@ -3024,6 +3074,13 @@ private:
 
             std::swap_ranges(cameras.begin(),cameras.end(),out->mCameras);
         }
+
+        if(textures.size()) {
+            out->mTextures = new aiTexture*[textures.size()]();
+            out->mNumTextures = static_cast<unsigned int>(textures.size());
+
+            std::swap_ranges(textures.begin(),textures.end(),out->mTextures);
+        }
     }
 
 
@@ -3037,10 +3094,14 @@ private:
     std::vector<aiAnimation*> animations;
     std::vector<aiLight*> lights;
     std::vector<aiCamera*> cameras;
+    std::vector<aiTexture*> textures;
 
     typedef std::map<const Material*, unsigned int> MaterialMap;
     MaterialMap materials_converted;
 
+    typedef std::map<const Video*, unsigned int> VideoMap;
+    VideoMap textures_converted;
+
     typedef std::map<const Geometry*, std::vector<unsigned int> > MeshMap;
     MeshMap meshes_converted;