C++ (Cpp) fromTexture Examples

Example #1

void QMeeGoPixmapData::fromEGLSharedImage(Qt::HANDLE handle, const QImage &si)
{
    if (si.isNull())
        qFatal("Trying to build pixmap with an empty/null softimage!");
        
    QGLShareContextScope ctx(qt_gl_share_widget()->context());
   
    QMeeGoExtensions::ensureInitialized();
 
    bool textureIsBound = false;
    GLuint newTextureId;
    GLint newWidth, newHeight;

    glGenTextures(1, &newTextureId);
    glBindTexture(GL_TEXTURE_2D, newTextureId);
    
    glFinish();
    EGLImageKHR image = QEgl::eglCreateImageKHR(QEgl::display(), EGL_NO_CONTEXT, EGL_SHARED_IMAGE_NOK,
                                                (EGLClientBuffer)handle, preserved_image_attribs);

    if (image != EGL_NO_IMAGE_KHR) {
        glFinish();
        glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, image);
        GLint err = glGetError();
        if (err == GL_NO_ERROR)
            textureIsBound = true;
        
        QMeeGoExtensions::eglQueryImageNOK(QEgl::display(), image, EGL_WIDTH, &newWidth);
        QMeeGoExtensions::eglQueryImageNOK(QEgl::display(), image, EGL_HEIGHT, &newHeight);
          
        QEgl::eglDestroyImageKHR(QEgl::display(), image);
        glFinish();
    }
        
    if (textureIsBound) {
        // FIXME Remove this ugly hasAlphaChannel check when Qt lands the NoOpaqueCheck flag fix
        // for QGLPixmapData.
        fromTexture(newTextureId, newWidth, newHeight, 
                    (si.hasAlphaChannel() && const_cast<QImage &>(si).data_ptr()->checkForAlphaPixels()));
        softImage = si;
        QMeeGoPixmapData::registerSharedImage(handle, softImage);
    } else {
        qWarning("Failed to create a texture from a shared image!");
        glDeleteTextures(1, &newTextureId);
    }
}

Example #2

File: main.cpp Project: myst6re/vincent-tim

int main(int argc, char *argv[])
{
	QCoreApplication a(argc, argv);
	QCoreApplication::setApplicationName("Vincent Tim");
	QCoreApplication::setApplicationVersion("1.2");
#ifdef Q_OS_WIN
	QTextCodec::setCodecForLocale(QTextCodec::codecForName("IBM 850"));
#endif
	
#ifdef TESTS_ENABLED
	qDebug() << "Running tests...";
	
	Collect c("tests/tim/files");
	c.textureData("tim");
#endif

	Arguments args;

	if (args.help() || args.paths().isEmpty()) {
		args.showHelp();
	} else {
		foreach (const QString &path, args.paths()) {
			TextureFile *texture;

			if (args.inputFormat(path) == args.outputFormat()) {
				qWarning() << "Error: input and output formats are not different";
				a.exit(1);
			}

			QFile f(path);
			if (f.open(QIODevice::ReadOnly)) {

				if (!args.analysis()) {
					texture = TextureFile::factory(args.inputFormat(path));

					if (texture->open(f.readAll())) {
						if (TextureFile::supportedTextureFormats().contains(args.outputFormat(), Qt::CaseInsensitive)) {
							if (!toTexture(texture, path, args)) {
								break;
							}
						} else if (TextureFile::supportedTextureFormats().contains(args.inputFormat(path), Qt::CaseInsensitive)) {
							fromTexture(texture, path, args);
						} else {
							qWarning() << "Error: input format or output format must be a supported texture format" << TextureFile::supportedTextureFormats();
							a.exit(1);
						}
					} else {
						qWarning() << "Error: Cannot open Texture file";
						a.exit(1);
					}

					f.close();

					delete texture;
				} else { // Search tim files
					QList<PosSize> positions = TimFile::findTims(&f);

					int num = 0;
					foreach (const PosSize &pos, positions) {
						texture = new TimFile();
						f.seek(pos.first);
						if (texture->open(f.read(pos.second))) {
							if (args.outputFormat().compare("tim", Qt::CaseInsensitive) == 0) {
								if (!texture->saveToFile(args.destination(path, num))) {
									qWarning() << "Error: Cannot save Texture file from" << QDir::toNativeSeparators(path) << "to" << args.destination(path, num);
									continue;
								} else {
									printf("%s\n", qPrintable(QDir::toNativeSeparators(args.destination(path, num))));
								}
							} else {
								fromTexture(texture, path, args, num);
							}
							num++;
						} else {
							qWarning() << "Error: Cannot open Texture file from" << QDir::toNativeSeparators(path);
							a.exit(1);
						}
						delete texture;
					}
				}
			} else {
				qWarning() << "Error: cannot open file" << QDir::toNativeSeparators(path) << f.errorString();
				a.exit(1);
			}
		}