start importer, load nodes

code/AssbinLoader.cpp

@@ -50,6 +50,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 // internal headers
 #include "AssbinLoader.h"
+#include "assbin_chunks.h"
 
 using namespace Assimp;
 
@@ -66,12 +67,12 @@ static const aiImporterDesc desc = {
   "assbin" 
 };
 
-const aiImporterDesc* Assimp::AssbinImporter::GetInfo() const
+const aiImporterDesc* AssbinImporter::GetInfo() const
 {
   return &desc;
 }
 
-bool Assimp::AssbinImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig ) const
+bool AssbinImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig ) const
 {
   IOStream * in = pIOHandler->Open(pFile);
   if (!in)
@@ -85,9 +86,153 @@ bool Assimp::AssbinImporter::CanRead( const std::string& pFile, IOSystem* pIOHan
   return strncmp( s, "ASSIMP.binary-dump.", 19 ) == 0;
 }
 
-void Assimp::AssbinImporter::InternReadFile( const std::string& pFile, aiScene* pScene, IOSystem* pIOHandler )
+template <typename T>
+T Read(IOStream * stream)
 {
-  // TODO
+  T t;
+  stream->Read( &t, sizeof(T), 1 );
+  return t;
+}
+
+template <>
+aiString Read<aiString>(IOStream * stream)
+{
+  aiString s;
+	stream->Read(&s.length,4,1);
+  stream->Read(s.data,s.length,1);
+  return s;
+}
+
+template <>
+aiMatrix4x4 Read<aiMatrix4x4>(IOStream * stream)
+{
+  aiMatrix4x4 m;
+	for (unsigned int i = 0; i < 4;++i) {
+		for (unsigned int i2 = 0; i2 < 4;++i2) {
+			m[i][i2] = Read<float>(stream);
+		}
+	}
+	return m;
+}
+
+void AssbinImporter::ReadBinaryNode( IOStream * stream, aiNode** node )
+{
+	ai_assert( Read<uint32_t>(stream) == ASSBIN_CHUNK_AINODE);
+  uint32_t size = Read<uint32_t>(stream);
+
+  *node = new aiNode();
+
+	(*node)->mName = Read<aiString>(stream);
+	(*node)->mTransformation = Read<aiMatrix4x4>(stream);
+	(*node)->mNumChildren = Read<unsigned int>(stream);
+	(*node)->mNumMeshes = Read<unsigned int>(stream);
+
+  if ((*node)->mNumMeshes)
+  {
+    (*node)->mMeshes = new unsigned int[(*node)->mNumMeshes];
+	  for (unsigned int i = 0; i < (*node)->mNumMeshes; ++i) {
+		  (*node)->mMeshes[i] = Read<unsigned int>(stream);
+	  }
+  }
+
+  if ((*node)->mNumChildren)
+  {
+    (*node)->mChildren = new aiNode*[(*node)->mNumChildren];
+	  for (unsigned int i = 0; i < (*node)->mNumChildren; ++i) {
+		  ReadBinaryNode( stream, &(*node)->mChildren[i] );
+	  }
+  }
+
+}
+
+void AssbinImporter::ReadBinaryScene( IOStream * stream, aiScene* scene )
+{
+	ai_assert( Read<uint32_t>(stream) == ASSBIN_CHUNK_AISCENE);
+  uint32_t size = Read<uint32_t>(stream);
+
+	scene->mFlags         = Read<unsigned int>(stream);
+	scene->mNumMeshes     = Read<unsigned int>(stream);
+	scene->mNumMaterials  = Read<unsigned int>(stream);
+	scene->mNumAnimations = Read<unsigned int>(stream);
+	scene->mNumTextures   = Read<unsigned int>(stream);
+	scene->mNumLights     = Read<unsigned int>(stream);
+	scene->mNumCameras    = Read<unsigned int>(stream);
+
+	// Read node graph
+  scene->mRootNode = new aiNode[1];
+	ReadBinaryNode( stream, &scene->mRootNode );
+
+/*
+	// Read all meshes
+	for (unsigned int i = 0; i < scene->mNumMeshes;++i) {
+		const aiMesh* mesh = scene->mMeshes[i];
+		ReadBinaryMesh( stream,mesh);
+	}
+
+	// Read materials
+	for (unsigned int i = 0; i< scene->mNumMaterials; ++i) {
+		const aiMaterial* mat = scene->mMaterials[i];
+		ReadBinaryMaterial(stream,mat);
+	}
+
+	// Read all animations
+	for (unsigned int i = 0; i < scene->mNumAnimations;++i) {
+		const aiAnimation* anim = scene->mAnimations[i];
+		ReadBinaryAnim(stream,anim);
+	}
+
+
+	// Read all textures
+	for (unsigned int i = 0; i < scene->mNumTextures;++i) {
+		const aiTexture* mesh = scene->mTextures[i];
+		ReadBinaryTexture(stream,mesh);
+	}
+
+	// Read lights
+	for (unsigned int i = 0; i < scene->mNumLights;++i) {
+		const aiLight* l = scene->mLights[i];
+		ReadBinaryLight(stream,l);
+	}
+
+	// Read cameras
+	for (unsigned int i = 0; i < scene->mNumCameras;++i) {
+		const aiCamera* cam = scene->mCameras[i];
+		ReadBinaryCamera(stream,cam);
+	}
+*/
+
+}
+
+void AssbinImporter::InternReadFile( const std::string& pFile, aiScene* pScene, IOSystem* pIOHandler )
+{
+	IOStream * stream = pIOHandler->Open(pFile,"rb");
+	if (!stream)
+    return;
+
+  stream->Seek( 44, aiOrigin_CUR ); // signature
+
+	unsigned int versionMajor = Read<unsigned int>(stream);
+	unsigned int versionMinor = Read<unsigned int>(stream);
+	unsigned int versionRevision = Read<unsigned int>(stream);
+	unsigned int compileFlags = Read<unsigned int>(stream);
+
+	shortened = Read<uint16_t>(stream) > 0;
+	compressed = Read<uint16_t>(stream) > 0;
+
+  stream->Seek( 256, aiOrigin_CUR ); // original filename
+  stream->Seek( 128, aiOrigin_CUR ); // options
+  stream->Seek( 64, aiOrigin_CUR ); // padding
+
+  if (compressed)
+  {
+    // TODO
+  }
+  else
+  {
+    ReadBinaryScene(stream,pScene);
+  }
+  
+  pIOHandler->Close(stream);
 }
 
 #endif // !! ASSIMP_BUILD_NO_ASSBIN_IMPORTER

code/AssbinLoader.h

@@ -57,6 +57,12 @@ namespace Assimp	{
  */
 class AssbinImporter : public BaseImporter
 {
+private:
+  bool shortened;
+  bool compressed;
+protected:
+
+public:
   virtual bool CanRead( 
     const std::string& pFile, 
     IOSystem* pIOHandler, 
@@ -68,6 +74,8 @@ class AssbinImporter : public BaseImporter
     aiScene* pScene, 
     IOSystem* pIOHandler
     );
+  void ReadBinaryScene( IOStream * stream, aiScene* pScene );
+  void ReadBinaryNode( IOStream * stream, aiNode** mRootNode );
 };
 
 } // end of namespace Assimp