void ImageSequenceSave::saveImage(const std::string& filename, tgt::Texture* image) throw (VoreenException) {
tgtAssert(filename != "", "filename is empty");
tgtAssert(tgt::FileSystem::fileExtension(filename) != "", "filename has no extension");
tgtAssert(image, "no texture");
if (image->getDepth() > 1)
throw VoreenException("Passed image is a 3D texture");
// get color buffer content
tgt::ivec2 dim = image->getDimensions().xy();
bool luminance = (image->getFormat() == GL_LUMINANCE);
GLushort* colorBuffer;
if (luminance)
colorBuffer = reinterpret_cast<GLushort*>(image->downloadTextureToBuffer(GL_LUMINANCE, GL_UNSIGNED_SHORT));
else
colorBuffer = reinterpret_cast<GLushort*>(image->downloadTextureToBuffer(GL_RGBA, GL_UNSIGNED_SHORT));
// create Devil image from image data and write it to file
ILuint img;
ilGenImages(1, &img);
ilBindImage(img);
// put pixels into IL-Image
ilTexImage(dim.x, dim.y, 1, (luminance ? 1 : 4), (luminance ? IL_LUMINANCE : IL_RGBA), IL_UNSIGNED_SHORT, colorBuffer);
ilEnable(IL_FILE_OVERWRITE);
ilResetWrite();
ILboolean success = ilSaveImage(const_cast<char*>(filename.c_str()));
ilDeleteImages(1, &img);
delete[] colorBuffer;
if (!success) {
throw VoreenException(DevILModule::getDevILError());
}
}
void DevilImageWriter::writeIlImage(const WeaklyTypedPointer& wtp, const cgt::ivec2& size, const std::string& filename) const {
// create Devil image from image data and write it to file
ILuint img;
ilGenImages(1, &img);
ilBindImage(img);
// put pixels into IL-Image
ilTexImage(size.x, size.y, 1, static_cast<ILubyte>(wtp._numChannels), wtp.getIlFormat(), wtp.getIlDataType(), wtp._pointer);
ilEnable(IL_FILE_OVERWRITE);
ilResetWrite();
ILboolean success = ilSaveImage(filename.c_str());
ilDeleteImages(1, &img);
if (! success) {
ILenum errorcode;
while ((errorcode = ilGetError()) != IL_NO_ERROR) {
LERROR("Error while writing '" << filename << "': "<< (errorcode));
}
}
}
// ONLY call at startup.
ILvoid ILAPIENTRY ilInit()
{
// if it is already initialized skip initialization
if (IsInit == IL_TRUE )
return;
//ilSetMemory(NULL, NULL); Now useless 3/4/2006 (due to modification in il_alloc.c)
ilSetError(IL_NO_ERROR);
ilDefaultStates(); // Set states to their defaults.
// Sets default file-reading callbacks.
ilResetRead();
ilResetWrite();
#if (!defined(_WIN32_WCE)) && (!defined(IL_STATIC_LIB))
atexit((void*)ilRemoveRegistered);
#endif
//_WIN32_WCE
//ilShutDown();
iSetImage0(); // Beware! Clears all existing textures!
iBindImageTemp(); // Go ahead and create the temporary image.
IsInit = IL_TRUE;
return;
}
