Example usage for org.lwjgl.opengl GL11 glGetTexImage

Introduction

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

Prototype

public static void glGetTexImage(@NativeType("GLenum") int tex, @NativeType("GLint") int level,
        @NativeType("GLenum") int format, @NativeType("GLenum") int type,
        @NativeType("void *") double[] pixels) 

Source Link

Document

Array version of: #glGetTexImage GetTexImage

Usage

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

License:Open Source License

@Override
public void getTexImage(int level, int format, int type, Buffer buffer) {
    if (buffer instanceof ByteBuffer) {
        ByteBuffer directBuffer = allocateDirectBuffer((ByteBuffer) buffer);
        GL11.glGetTexImage(GL11.GL_TEXTURE_2D, level, textureFormatToGL[format], textureTypeToGL[type],
                (ByteBuffer) buffer);
        copyBuffer((ByteBuffer) buffer, directBuffer);
    } else if (buffer instanceof IntBuffer) {
        IntBuffer directBuffer = allocateDirectBuffer((IntBuffer) buffer);
        GL11.glGetTexImage(GL11.GL_TEXTURE_2D, level, textureFormatToGL[format], textureTypeToGL[type],
                directBuffer);/*  w  w  w  .  ja v  a  2 s . c  o  m*/
        copyBuffer((IntBuffer) buffer, directBuffer);
    } else if (buffer instanceof ShortBuffer) {
        ShortBuffer directBuffer = allocateDirectBuffer((ShortBuffer) buffer);
        GL11.glGetTexImage(GL11.GL_TEXTURE_2D, level, textureFormatToGL[format], textureTypeToGL[type],
                (ShortBuffer) buffer);
        copyBuffer((ShortBuffer) buffer, directBuffer);
    } else if (buffer instanceof FloatBuffer) {
        FloatBuffer directBuffer = allocateDirectBuffer((FloatBuffer) buffer);
        GL11.glGetTexImage(GL11.GL_TEXTURE_2D, level, textureFormatToGL[format], textureTypeToGL[type],
                (FloatBuffer) buffer);
        copyBuffer((FloatBuffer) buffer, directBuffer);
    } else {
        throw new IllegalArgumentException();
    }
}

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From source file:mwisbest.openbase.opengl.TextureImplementation.java

License:Open Source License

@Override
public byte[] getTextureData() {
    ByteBuffer buffer = BufferUtils
            .createByteBuffer(this.format.getColorComponents() * this.texWidth * this.texHeight);
    this.bind();/* w  w  w .j  a v  a  2s  . c  o  m*/
    GL11.glGetTexImage(GL11.GL_TEXTURE_2D, 0, this.format.getOGLType(), GL11.GL_UNSIGNED_BYTE, buffer);
    byte[] data = new byte[buffer.limit()];
    buffer.get(data);
    buffer.clear();

    return data;
}

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From source file:net.neilcsmith.praxis.video.opengl.internal.GLRenderer.java

License:Apache License

void syncTextureToPixels(GLSurfaceData data) {
    LOGGER.fine("Copying texture to pixels");
    if (data.texture == target) {
        LOGGER.fine("Texture is current render target");
        flush();/*from   w ww  .j ava 2s  . c  o m*/
    }
    int tWidth = data.texture.getWidth();
    int size = tWidth * data.texture.getHeight();
    if (scratchBuffer == null || scratchBuffer.capacity() < size) {
        scratchBuffer = BufferUtils.createIntBuffer(size);
    }
    scratchBuffer.rewind();
    data.texture.bind();
    GL11.glGetTexImage(GL11.GL_TEXTURE_2D, 0, GL12.GL_BGRA, GL12.GL_UNSIGNED_INT_8_8_8_8_REV, scratchBuffer);
    scratchBuffer.rewind();
    int offset = 0;
    for (int y = 0; y < data.height; y++) {
        scratchBuffer.position(offset);
        scratchBuffer.get(data.pixels, y * data.width, data.width);
        offset += tWidth;
    }
}

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From source file:org.terasology.rendering.opengl.DefaultRenderingProcess.java

License:Apache License

public void saveScreenshot() {
    if (!takeScreenshot) {
        return;/*from   w ww.j  a v  a  2s. c  o m*/
    }

    final FBO fboSceneFinal = getFBO("sceneFinal");

    if (fboSceneFinal == null) {
        return;
    }

    final ByteBuffer buffer = BufferUtils.createByteBuffer(fboSceneFinal.width * fboSceneFinal.height * 4);

    fboSceneFinal.bindTexture();
    GL11.glGetTexImage(GL11.GL_TEXTURE_2D, 0, GL11.GL_RGBA, GL11.GL_UNSIGNED_BYTE, buffer);
    fboSceneFinal.unbindTexture();

    Runnable r = new Runnable() {
        @Override
        public void run() {
            Calendar cal = Calendar.getInstance();
            SimpleDateFormat sdf = new SimpleDateFormat("yyMMddHHmmss");

            final String fileName = "Terasology-" + sdf.format(cal.getTime()) + "-" + fboSceneFinal.width + "x"
                    + fboSceneFinal.height + ".png";
            Path path = PathManager.getInstance().getScreenshotPath().resolve(fileName);
            BufferedImage image = new BufferedImage(fboSceneFinal.width, fboSceneFinal.height,
                    BufferedImage.TYPE_INT_RGB);

            for (int x = 0; x < fboSceneFinal.width; x++) {
                for (int y = 0; y < fboSceneFinal.height; y++) {
                    int i = (x + fboSceneFinal.width * y) * 4;
                    int r = buffer.get(i) & 0xFF;
                    int g = buffer.get(i + 1) & 0xFF;
                    int b = buffer.get(i + 2) & 0xFF;
                    image.setRGB(x, fboSceneFinal.height - (y + 1), (0xFF << 24) | (r << 16) | (g << 8) | b);
                }
            }

            try (OutputStream out = new BufferedOutputStream(Files.newOutputStream(path))) {
                ImageIO.write(image, "png", out);
                logger.info("Screenshot '" + fileName + "' saved! ");
            } catch (IOException e) {
                logger.warn("Failed to save screenshot!", e);
            }
        }
    };

    CoreRegistry.get(GameEngine.class).submitTask("Write screenshot", r);

    takeScreenshot = false;
    overwriteRtWidth = 0;
    overwriteRtWidth = 0;

    createOrUpdateFullscreenFbos();
}

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From source file:org.terasology.rendering.opengl.FBO.java

License:Apache License

/**
 * Returns the content of the color buffer from GPU memory as a ByteBuffer.
 * @return a ByteBuffer or null/*from w  w  w  .j  av  a2s. c  o  m*/
 */
public ByteBuffer getColorBufferRawData() {
    ByteBuffer buffer = BufferUtils.createByteBuffer(this.width() * this.height() * 4);

    this.bindTexture();
    GL11.glGetTexImage(GL11.GL_TEXTURE_2D, 0, GL11.GL_RGBA, GL11.GL_UNSIGNED_BYTE, buffer);
    FBO.unbindTexture();

    return buffer;
}

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From source file:org.terasology.rendering.opengl.FrameBuffersManager.java

License:Apache License

/**
 * Returns the content of the color buffer of the FBO "sceneFinal", from GPU memory as a ByteBuffer.
 * If the FBO "sceneFinal" is unavailable, returns null.
 *
 * @return a ByteBuffer or null/*from   w w  w.  j  a v  a  2 s. c o  m*/
 */
public ByteBuffer getSceneFinalRawData() {
    FBO fboSceneFinal = getFBO("sceneFinal");
    if (fboSceneFinal == null) {
        logger.error("FBO sceneFinal is unavailable: cannot return data from it.");
        return null;
    }

    ByteBuffer buffer = BufferUtils.createByteBuffer(fboSceneFinal.width() * fboSceneFinal.height() * 4);

    fboSceneFinal.bindTexture();
    GL11.glGetTexImage(GL11.GL_TEXTURE_2D, 0, GL11.GL_RGBA, GL11.GL_UNSIGNED_BYTE, buffer);
    FBO.unbindTexture();

    return buffer;
}

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From source file:org.terasology.rendering.opengl.LwjglRenderingProcess.java

License:Apache License

public void saveScreenshot() {
    if (!takeScreenshot) {
        return;//from   ww w.  j av  a  2  s  . c o m
    }

    final FBO fboSceneFinal = getFBO("sceneFinal");

    if (fboSceneFinal == null) {
        return;
    }

    final ByteBuffer buffer = BufferUtils.createByteBuffer(fboSceneFinal.width() * fboSceneFinal.height() * 4);

    fboSceneFinal.bindTexture();
    GL11.glGetTexImage(GL11.GL_TEXTURE_2D, 0, GL11.GL_RGBA, GL11.GL_UNSIGNED_BYTE, buffer);
    fboSceneFinal.unbindTexture();

    Runnable task = new Runnable() {
        @Override
        public void run() {
            SimpleDateFormat sdf = new SimpleDateFormat("yyMMddHHmmss");

            final String format = renderingConfig.getScreenshotFormat().toString();
            final String fileName = "Terasology-" + sdf.format(new Date()) + "-" + fboSceneFinal.width() + "x"
                    + fboSceneFinal.height() + "." + format;
            Path path = PathManager.getInstance().getScreenshotPath().resolve(fileName);
            BufferedImage image = new BufferedImage(fboSceneFinal.width(), fboSceneFinal.height(),
                    BufferedImage.TYPE_INT_RGB);

            for (int x = 0; x < fboSceneFinal.width(); x++) {
                for (int y = 0; y < fboSceneFinal.height(); y++) {
                    int i = (x + fboSceneFinal.width() * y) * 4;
                    int r = buffer.get(i) & 0xFF;
                    int g = buffer.get(i + 1) & 0xFF;
                    int b = buffer.get(i + 2) & 0xFF;
                    image.setRGB(x, fboSceneFinal.height() - (y + 1), (0xFF << 24) | (r << 16) | (g << 8) | b);
                }
            }

            try (OutputStream out = new BufferedOutputStream(Files.newOutputStream(path))) {
                ImageIO.write(image, format, out);
                logger.info("Screenshot '" + fileName + "' saved! ");
            } catch (IOException e) {
                logger.warn("Failed to save screenshot!", e);
            }
        }
    };

    CoreRegistry.get(GameEngine.class).submitTask("Write screenshot", task);

    takeScreenshot = false;
    overwriteRtWidth = 0;
    overwriteRtHeight = 0;

    createOrUpdateFullscreenFbos();
}

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From source file:org.terasology.rendering.renderingProcesses.DefaultRenderingProcess.java

License:Apache License

public void saveScreenshot() {
    if (!takeScreenshot) {
        return;/*www  .  jav a  2 s  .co  m*/
    }

    final FBO fboSceneFinal = getFBO("sceneFinal");

    if (fboSceneFinal == null) {
        return;
    }

    final ByteBuffer buffer = BufferUtils.createByteBuffer(fboSceneFinal.width * fboSceneFinal.height * 4);

    fboSceneFinal.bindTexture();
    GL11.glGetTexImage(GL11.GL_TEXTURE_2D, 0, GL11.GL_RGBA, GL11.GL_UNSIGNED_BYTE, buffer);
    fboSceneFinal.unbindTexture();

    Runnable r = new Runnable() {
        @Override
        public void run() {
            Calendar cal = Calendar.getInstance();
            SimpleDateFormat sdf = new SimpleDateFormat("yyMMddHHmmss");

            final String fileName = "Terasology-" + sdf.format(cal.getTime()) + "-" + fboSceneFinal.width + "x"
                    + fboSceneFinal.height + ".png";
            File file = new File(PathManager.getInstance().getScreenshotPath(), fileName);
            BufferedImage image = new BufferedImage(fboSceneFinal.width, fboSceneFinal.height,
                    BufferedImage.TYPE_INT_RGB);

            for (int x = 0; x < fboSceneFinal.width; x++)
                for (int y = 0; y < fboSceneFinal.height; y++) {
                    int i = (x + fboSceneFinal.width * y) * 4;
                    int r = buffer.get(i) & 0xFF;
                    int g = buffer.get(i + 1) & 0xFF;
                    int b = buffer.get(i + 2) & 0xFF;
                    image.setRGB(x, fboSceneFinal.height - (y + 1), (0xFF << 24) | (r << 16) | (g << 8) | b);
                }

            try {
                ImageIO.write(image, "png", file);
                logger.info("Screenshot '" + fileName + "' saved! ");
            } catch (IOException e) {
                logger.warn("Could not save screenshot!", e);
            }
        }
    };

    CoreRegistry.get(GameEngine.class).submitTask("Write screenshot", r);

    takeScreenshot = false;
    overwriteRtWidth = 0;
    overwriteRtWidth = 0;

    createOrUpdateFullscreenFbos();
}

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From source file:tk.ivybits.engine.gl.GL.java

License:Open Source License

public static void glGetTexImage(int a, int b, int c, int d, ByteBuffer e) {
    GL11.glGetTexImage(a, b, c, d, e);
}

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From source file:tk.ivybits.engine.gl.GL.java

License:Open Source License

public static void glGetTexImage(int a, int b, int c, int d, FloatBuffer e) {
    GL11.glGetTexImage(a, b, c, d, e);
}

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