void Load(const std::string& p_file_name) {
FILE* file;
file = fopen(p_file_name.c_str(), "rb");
if (file) {
unsigned long size;
fseek(file, 0, SEEK_END);
size = ftell(file);
fseek(file, 0, SEEK_SET);
r2::Byte* buffer = new r2::Byte[size];
try {
fread(buffer, 1, size, file);
r2::SerialLoader loader(buffer, size);
Serialize(loader);
} catch (...) {
delete [] buffer;
throw;
}
delete [] buffer;
fclose(file);
} else {
throw r2ExceptionIOM(std::string("Could not open file: ") + p_file_name);
}
}
void Save(const std::string& p_file_name) {
r2::SerialSizer sizer;
Serialize(sizer);
r2::Byte* buffer = new r2::Byte[sizer.GetSize()];
try {
r2::SerialSaver saver(buffer, sizer.GetSize());
Serialize(saver);
FILE* file;
file = fopen(p_file_name.c_str(), "w+b");
if (file) {
fwrite(buffer, 1, sizer.GetSize(), file);
fclose(file);
} else {
throw r2ExceptionIOM(std::string("Could not create/open file: ") + p_file_name);
}
} catch (...) {
delete [] buffer;
throw;
}
delete [] buffer;
}
std::shared_ptr<Texture> Texture::loadTexture(const std::string& filename) {
std::shared_ptr<Texture> texture(new Texture);
ILuint imageName;
ilGenImages(1, &imageName);
ilBindImage(imageName);
if (!ilLoadImage(filename.c_str())) {
throw r2ExceptionIOM("Failed to load texture image: " + filename);
}
GLCheck(glBindTexture(GL_TEXTURE_2D, texture->getId()));
ILuint imageWidth = ilGetInteger(IL_IMAGE_WIDTH);
ILuint imageHeight = ilGetInteger(IL_IMAGE_HEIGHT);
ILuint imageBpp = ilGetInteger(IL_IMAGE_BPP);
ILubyte* imageData = ilGetData();
GLenum format = (imageBpp == 3) ? GL_RGB : GL_RGBA;
if (imageBpp != 3 && imageBpp != 4) {
std::stringstream ss;
ss << "Texture image in bad format (bytes per pixel = " << imageBpp << "): " << filename;
throw r2ExceptionIOM(ss.str());
}
GLCheck(glTexImage2D(GL_TEXTURE_2D,
0,
format,
imageWidth,
imageHeight,
0,
format,
GL_UNSIGNED_BYTE,
(const GLvoid*)imageData));
ilBindImage(0);
ilDeleteImages(1, &imageName);
return texture;
}
