Java 类org.lwjgl.opengl.ARBMultisample 实例源码

public void setAlphaToCoverage(boolean value) {
    if (value) {
        glEnable(ARBMultisample.GL_SAMPLE_ALPHA_TO_COVERAGE_ARB);
    } else {
        glDisable(ARBMultisample.GL_SAMPLE_ALPHA_TO_COVERAGE_ARB);
    }
}

public final static void dumpWindowInfo() {
    int r = GLUtils.getGLInteger(GL11.GL_RED_BITS);
    int g = GLUtils.getGLInteger(GL11.GL_GREEN_BITS);
    int b = GLUtils.getGLInteger(GL11.GL_BLUE_BITS);
    int a = GLUtils.getGLInteger(GL11.GL_ALPHA_BITS);
    int depth = GLUtils.getGLInteger(GL11.GL_DEPTH_BITS);
    int stencil = GLUtils.getGLInteger(GL11.GL_STENCIL_BITS);
    int sample_buffers = 0;
    int samples = 0;
    if (GLContext.getCapabilities().GL_ARB_multisample) {
        sample_buffers = GLUtils.getGLInteger(ARBMultisample.GL_SAMPLE_BUFFERS_ARB);
        samples = GLUtils.getGLInteger(ARBMultisample.GL_SAMPLES_ARB);
    }
    System.out.println("r = " + r + " | g = " + g + " | b = " + b + " | a = " + a + " | depth = " + depth + " | stencil = " + stencil + " | sample_buffers = " + sample_buffers + " | samples = " + samples);
}

public void setAlphaToCoverage(boolean value) {
    if (value) {
        glEnable(ARBMultisample.GL_SAMPLE_ALPHA_TO_COVERAGE_ARB);
    } else {
        glDisable(ARBMultisample.GL_SAMPLE_ALPHA_TO_COVERAGE_ARB);
    }
}

protected void createContext(AppSettings settings) throws LWJGLException{
    DisplayMode displayMode = null;
    if (settings.getWidth() <= 0 || settings.getHeight() <= 0){
        displayMode = Display.getDesktopDisplayMode();
        settings.setResolution(displayMode.getWidth(), displayMode.getHeight());
    }else if (settings.isFullscreen()){
        displayMode = getFullscreenDisplayMode(settings.getWidth(), settings.getHeight(),
                                               settings.getBitsPerPixel(), settings.getFrequency());
        if (displayMode == null)
            throw new RuntimeException("Unable to find fullscreen display mode matching settings");
    }else{
        displayMode = new DisplayMode(settings.getWidth(), settings.getHeight());
    }

    PixelFormat pf = new PixelFormat(settings.getBitsPerPixel(),
                                     0,
                                     settings.getDepthBits(),
                                     settings.getStencilBits(),
                                     settings.getSamples());

    frameRate = settings.getFrameRate();
    logger.log(Level.INFO, "Selected display mode: {0}", displayMode);

    boolean pixelFormatChanged = false;
    if (created.get() && (pixelFormat.getBitsPerPixel() != pf.getBitsPerPixel()
                        ||pixelFormat.getDepthBits() != pf.getDepthBits()
                        ||pixelFormat.getStencilBits() != pf.getStencilBits()
                        ||pixelFormat.getSamples() != pf.getSamples())){
        renderer.resetGLObjects();
        Display.destroy();
        pixelFormatChanged = true;
    }
    pixelFormat = pf;

    Display.setTitle(settings.getTitle());
    if (displayMode != null){
        if (settings.isFullscreen()){
            Display.setDisplayModeAndFullscreen(displayMode);
        }else{
            Display.setFullscreen(false);
            Display.setDisplayMode(displayMode);
        }
    }else{
        Display.setFullscreen(settings.isFullscreen());
    }

    if (settings.getIcons() != null) {
        Display.setIcon(imagesToByteBuffers(settings.getIcons()));
    }

    Display.setVSyncEnabled(settings.isVSync());

    if (created.get() && !pixelFormatChanged){
        Display.releaseContext();
        Display.makeCurrent();
        Display.update();
    }

    if (!created.get() || pixelFormatChanged){
        ContextAttribs attr = createContextAttribs();
        if (attr != null){
            Display.create(pixelFormat, attr);
        }else{
            Display.create(pixelFormat);
        }
        renderable.set(true);

        if (pixelFormatChanged && pixelFormat.getSamples() > 1
         && GLContext.getCapabilities().GL_ARB_multisample){
            GL11.glEnable(ARBMultisample.GL_MULTISAMPLE_ARB);
        }
    }
}