Example usage for org.lwjgl.opengl GL11 glPixelStorei

Introduction

In this page you can find the example usage for org.lwjgl.opengl GL11 glPixelStorei.

Prototype

public static void glPixelStorei(@NativeType("GLenum") int pname, @NativeType("GLint") int param) 

Source Link

Document

Sets the integer value of a pixel store parameter.

Usage

From source file:ion2d.INTexture2D.java

License:Open Source License

/**
 * Creates the actual OpenGL texture to memory
 *//*  w  w w .j  ava 2 s.  c o m*/
protected void createTexture() {
    this.convertToPowerOfTwo();

    if (this.texture != null) {
        IntBuffer tmp = BufferUtils.createIntBuffer(1);
        GL11.glGenTextures(tmp);
        this.id = tmp.get(0);
        this.bind();

        int src = GL11.GL_RGBA;

        if (!this.image.getBufferedImage().getColorModel().hasAlpha()) {
            src = GL11.GL_RGB;
        }

        GL11.glPixelStorei(GL11.GL_UNPACK_ALIGNMENT, 1);

        this.setAntiAlias();
        GL11.glTexEnvf(GL11.GL_TEXTURE_ENV, GL11.GL_TEXTURE_ENV_MODE, GL11.GL_MODULATE);

        GL11.glTexImage2D(GL11.GL_TEXTURE_2D, 0, src, this.width, this.height, 0, src, GL11.GL_UNSIGNED_BYTE,
                this.texture);
    }
}

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From source file:itdelatrisu.opsu.Utils.java

License:Open Source License

/**
 * Takes a screenshot./*from   w  w w . j av  a 2s  . c om*/
 * @author http://wiki.lwjgl.org/index.php?title=Taking_Screen_Shots
 */
public static void takeScreenShot() {
    // create the screenshot directory
    File dir = Options.getScreenshotDir();
    if (!dir.isDirectory()) {
        if (!dir.mkdir()) {
            ErrorHandler.error("Failed to create screenshot directory.", null, false);
            return;
        }
    }

    // create file name
    SimpleDateFormat date = new SimpleDateFormat("yyyyMMdd_HHmmss");
    final File file = new File(dir,
            String.format("screenshot_%s.%s", date.format(new Date()), Options.getScreenshotFormat()));

    SoundController.playSound(SoundEffect.SHUTTER);

    // copy the screen to file
    final int width = Display.getWidth();
    final int height = Display.getHeight();
    final int bpp = 3; // assuming a 32-bit display with a byte each for red, green, blue, and alpha
    final ByteBuffer buffer = BufferUtils.createByteBuffer(width * height * bpp);
    GL11.glReadBuffer(GL11.GL_FRONT);
    GL11.glPixelStorei(GL11.GL_PACK_ALIGNMENT, 1);
    GL11.glReadPixels(0, 0, width, height, GL11.GL_RGB, GL11.GL_UNSIGNED_BYTE, buffer);
    new Thread() {
        @Override
        public void run() {
            try {
                BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
                for (int x = 0; x < width; x++) {
                    for (int y = 0; y < height; y++) {
                        int i = (x + (width * y)) * bpp;
                        int r = buffer.get(i) & 0xFF;
                        int g = buffer.get(i + 1) & 0xFF;
                        int b = buffer.get(i + 2) & 0xFF;
                        image.setRGB(x, height - (y + 1), (0xFF << 24) | (r << 16) | (g << 8) | b);
                    }
                }
                ImageIO.write(image, Options.getScreenshotFormat(), file);
            } catch (Exception e) {
                ErrorHandler.error("Failed to take a screenshot.", e, true);
            }
        }
    }.start();
}

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From source file:itemrender.client.rendering.FBOHelper.java

License:MIT License

public void saveToFile(File file) {
    // Bind framebuffer texture
    GlStateManager.bindTexture(textureID);

    GL11.glPixelStorei(GL11.GL_PACK_ALIGNMENT, 1);
    GL11.glPixelStorei(GL11.GL_UNPACK_ALIGNMENT, 1);

    int width = GL11.glGetTexLevelParameteri(GL11.GL_TEXTURE_2D, 0, GL11.GL_TEXTURE_WIDTH);
    int height = GL11.glGetTexLevelParameteri(GL11.GL_TEXTURE_2D, 0, GL11.GL_TEXTURE_HEIGHT);

    IntBuffer texture = BufferUtils.createIntBuffer(width * height);
    GL11.glGetTexImage(GL11.GL_TEXTURE_2D, 0, GL12.GL_BGRA, GL12.GL_UNSIGNED_INT_8_8_8_8_REV, texture);

    int[] texture_array = new int[width * height];
    texture.get(texture_array);/*w w  w. java2  s . com*/

    BufferedImage image = new BufferedImage(renderTextureSize, renderTextureSize, BufferedImage.TYPE_INT_ARGB);
    image.setRGB(0, 0, renderTextureSize, renderTextureSize, texture_array, 0, width);

    file.mkdirs();
    try {
        ImageIO.write(image, "png", file);
    } catch (Exception e) {
        // Do nothing
    }
}

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From source file:itemrender.client.rendering.FBOHelper.java

License:MIT License

public String getBase64() {
    // Bind framebuffer texture
    GlStateManager.bindTexture(textureID);

    GL11.glPixelStorei(GL11.GL_PACK_ALIGNMENT, 1);
    GL11.glPixelStorei(GL11.GL_UNPACK_ALIGNMENT, 1);

    int width = GL11.glGetTexLevelParameteri(GL11.GL_TEXTURE_2D, 0, GL11.GL_TEXTURE_WIDTH);
    int height = GL11.glGetTexLevelParameteri(GL11.GL_TEXTURE_2D, 0, GL11.GL_TEXTURE_HEIGHT);

    IntBuffer texture = BufferUtils.createIntBuffer(width * height);
    GL11.glGetTexImage(GL11.GL_TEXTURE_2D, 0, GL12.GL_BGRA, GL12.GL_UNSIGNED_INT_8_8_8_8_REV, texture);

    int[] texture_array = new int[width * height];
    texture.get(texture_array);//from   ww w .  j a v  a  2 s.  co m

    BufferedImage image = new BufferedImage(renderTextureSize, renderTextureSize, BufferedImage.TYPE_INT_ARGB);
    image.setRGB(0, 0, renderTextureSize, renderTextureSize, texture_array, 0, width);

    ByteArrayOutputStream out = new ByteArrayOutputStream();
    try {
        ImageIO.write(image, "PNG", out);
    } catch (IOException e) {
        // Do nothing
    }

    return Base64.encodeBase64String(out.toByteArray());
}

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From source file:ivengine.Util.java

License:Creative Commons License

/**
 * Loads a texture from a URL <filename> into a texture unit <textureUnit>
 *///  w ww .j a va 2s .co  m
public static int loadPNGTexture(URL filename, int textureUnit) {
    ByteBuffer buf = null;
    int tWidth = 0;
    int tHeight = 0;

    try {
        // Open the PNG file as an InputStream
        InputStream in = filename.openStream();
        // Link the PNG decoder to this stream
        PNGDecoder decoder = new PNGDecoder(in);

        // Get the width and height of the texture
        tWidth = decoder.getWidth();
        tHeight = decoder.getHeight();

        // Decode the PNG file in a ByteBuffer
        buf = ByteBuffer.allocateDirect(4 * decoder.getWidth() * decoder.getHeight());
        decoder.decode(buf, decoder.getWidth() * 4, Format.RGBA);
        buf.flip();

        in.close();
    } catch (IOException e) {
        e.printStackTrace();
        System.exit(-1);
    }

    // Create a new texture object in memory and bind it
    int texId = GL11.glGenTextures();
    GL13.glActiveTexture(textureUnit);
    GL11.glBindTexture(GL11.GL_TEXTURE_2D, texId);

    // All RGB bytes are aligned to each other and each component is 1 byte
    GL11.glPixelStorei(GL11.GL_UNPACK_ALIGNMENT, 1);

    // Upload the texture data and generate mip maps (for scaling)
    GL11.glTexImage2D(GL11.GL_TEXTURE_2D, 0, GL11.GL_RGB, tWidth, tHeight, 0, GL11.GL_RGBA,
            GL11.GL_UNSIGNED_BYTE, buf);
    //GL30.glGenerateMipmap(GL11.GL_TEXTURE_2D);

    // Setup the ST coordinate system
    GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_S, GL11.GL_REPEAT);
    GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_T, GL11.GL_REPEAT);

    // Setup what to do when the texture has to be scaled
    GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST);
    GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_NEAREST);

    return texId;
}

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From source file:jake2.desktop.LWJGLAdapter.java

License:Open Source License

@Override
public void glPixelStorei(int i, int j) {
    GL11.glPixelStorei(i, j);
}

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From source file:jpcsp.graphics.RE.RenderingEngineLwjgl.java

License:Open Source License

@Override
public void setPixelStore(int rowLength, int alignment) {
    if (!VideoEngine.getInstance().isUsexBRZFilter()) {
        GL11.glPixelStorei(GL11.GL_UNPACK_ROW_LENGTH, rowLength);
    }/*ww w  . ja va2s. com*/
    GL11.glPixelStorei(GL11.GL_UNPACK_ALIGNMENT, alignment);
    GL11.glPixelStorei(GL11.GL_PACK_ROW_LENGTH, rowLength);
    GL11.glPixelStorei(GL11.GL_PACK_ALIGNMENT, alignment);
}

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From source file:kihira.tails.client.gui.GuiEditor.java

License:Open Source License

private int getColourAtPoint(int x, int y) {
    int[] pixelData;
    int pixels = 1;

    if (pixelBuffer == null) {
        pixelBuffer = BufferUtils.createIntBuffer(pixels);
    }//  w  w  w  . j a  v a 2 s  . co  m
    pixelData = new int[pixels];

    GL11.glPixelStorei(GL11.GL_PACK_ALIGNMENT, 1);
    GL11.glPixelStorei(GL11.GL_UNPACK_ALIGNMENT, 1);
    pixelBuffer.clear();

    GL11.glReadPixels(x, mc.displayHeight - y, 1, 1, GL12.GL_BGRA, GL12.GL_UNSIGNED_INT_8_8_8_8_REV,
            pixelBuffer);

    pixelBuffer.get(pixelData);
    return pixelData[0];
}

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From source file:kuake2.render.lwjgl.Misc.java

License:Open Source License

void GL_ScreenShot_f() {
    StringBuffer sb = new StringBuffer(FS.Gamedir() + "/scrshot/jake00.tga");
    FS.CreatePath(sb.toString());//from w  w  w.  java 2 s .c o  m
    File file = new File(sb.toString());
    // find a valid file name
    int i = 0;
    int offset = sb.length() - 6;
    while (file.exists() && i++ < 100) {
        sb.setCharAt(offset, (char) ((i / 10) + '0'));
        sb.setCharAt(offset + 1, (char) ((i % 10) + '0'));
        file = new File(sb.toString());
    }
    if (i == 100) {
        VID.Printf(Defines.PRINT_ALL, "Clean up your screenshots\n");
        return;
    }

    try {
        RandomAccessFile out = new RandomAccessFile(file, "rw");
        FileChannel ch = out.getChannel();
        int fileLength = TGA_HEADER_SIZE + vid.width * vid.height * 3;
        out.setLength(fileLength);
        MappedByteBuffer image = ch.map(FileChannel.MapMode.READ_WRITE, 0, fileLength);

        // write the TGA header
        image.put(0, (byte) 0).put(1, (byte) 0);
        image.put(2, (byte) 2); // uncompressed type
        image.put(12, (byte) (vid.width & 0xFF)); // vid.width
        image.put(13, (byte) (vid.width >> 8)); // vid.width
        image.put(14, (byte) (vid.height & 0xFF)); // vid.height
        image.put(15, (byte) (vid.height >> 8)); // vid.height
        image.put(16, (byte) 24); // pixel size

        // go to image data position
        image.position(TGA_HEADER_SIZE);

        // change pixel alignment for reading
        if (vid.width % 4 != 0) {
            GL11.glPixelStorei(GL11.GL_PACK_ALIGNMENT, 1);
        }

        // OpenGL 1.2+ supports the GL_BGR color format
        // check the GL_VERSION to use the TARGA BGR order if possible
        // e.g.: 1.5.2 NVIDIA 66.29
        if (gl_config.getOpenGLVersion() >= 1.2f) {
            // read the BGR values into the image buffer
            GL11.glReadPixels(0, 0, vid.width, vid.height, GL12.GL_BGR, GL11.GL_UNSIGNED_BYTE, image);
        } else {
            // read the RGB values into the image buffer
            GL11.glReadPixels(0, 0, vid.width, vid.height, GL11.GL_RGB, GL11.GL_UNSIGNED_BYTE, image);
            // flip RGB to BGR
            byte tmp;
            for (i = TGA_HEADER_SIZE; i < fileLength; i += 3) {
                tmp = image.get(i);
                image.put(i, image.get(i + 2));
                image.put(i + 2, tmp);
            }
        }
        // reset to default alignment
        GL11.glPixelStorei(GL11.GL_PACK_ALIGNMENT, 4);
        // close the file channel
        ch.close();
    } catch (IOException e) {
        VID.Printf(Defines.PRINT_ALL, e.getMessage() + '\n');
    }

    VID.Printf(Defines.PRINT_ALL, "Wrote " + file + '\n');
}

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From source file:main.java.com.YeAJG.game.io.FileIOHandler.java

License:Open Source License

public static int loadPNGTexture(String filename, int textureUnit) throws IOException {
    ByteBuffer buf = null;//from  w  ww  .  j  ava 2s . c o m
    int tWidth = 0;
    int tHeight = 0;

    try {
        // Open the PNG file as an InputStream
        InputStream in = new FileInputStream(filename);
        // Link the PNG decoder to this stream
        PNGDecoder decoder = new PNGDecoder(in);

        // Get the width and height of the texture
        tWidth = decoder.getWidth();
        tHeight = decoder.getHeight();

        // Decode the PNG file in a ByteBuffer
        buf = ByteBuffer.allocateDirect(4 * decoder.getWidth() * decoder.getHeight());
        decoder.decode(buf, decoder.getWidth() * 4, PNGDecoder.RGBA);
        buf.flip();

        in.close();
    } catch (IOException e) {
        throw new IOException(e.getMessage());
    }

    // Create a new texture object in memory and bind it
    int texId = GL11.glGenTextures();
    GL13.glActiveTexture(textureUnit);
    GL11.glBindTexture(GL11.GL_TEXTURE_2D, texId);

    // All RGB bytes are aligned to each other and each component is 1 byte
    GL11.glPixelStorei(GL11.GL_UNPACK_ALIGNMENT, 1);

    // Upload the texture data and generate mip maps (for scaling)
    GL11.glTexImage2D(GL11.GL_TEXTURE_2D, 0, GL11.GL_RGBA, tWidth, tHeight, 0, GL11.GL_RGBA,
            GL11.GL_UNSIGNED_BYTE, buf);
    GL30.glGenerateMipmap(GL11.GL_TEXTURE_2D);

    // Setup the ST coordinate system
    GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_S, GL11.GL_REPEAT);
    GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_T, GL11.GL_REPEAT);

    // Setup what to do when the texture has to be scaled
    GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_LINEAR);
    GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_LINEAR_MIPMAP_LINEAR);

    Game.exitOnGLError("loadPNGTexture");

    return texId;
}

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