Example usage for org.lwjgl.opengl GL11 glTexImage2D

Introduction

In this page you can find the example usage for org.lwjgl.opengl GL11 glTexImage2D.

Prototype

public static void glTexImage2D(@NativeType("GLenum") int target, @NativeType("GLint") int level,
        @NativeType("GLint") int internalformat, @NativeType("GLsizei") int width,
        @NativeType("GLsizei") int height, @NativeType("GLint") int border, @NativeType("GLenum") int format,
        @NativeType("GLenum") int type, @Nullable @NativeType("void const *") double[] pixels) 

Source Link

Document

Array version of: #glTexImage2D TexImage2D

Usage

From source file:me.ukl.api.util.TextureUtil.java

License:MIT License

public static int loadTexture(int[] rgb, int width, int height) {
    IntBuffer rgbBuf = BufferUtils.createIntBuffer(rgb.length);
    rgbBuf.put(rgb);//from ww w . j  a  va2 s . c o  m
    rgbBuf.flip();

    int tex = GL11.glGenTextures();
    GL11.glBindTexture(GL11.GL_TEXTURE_2D, tex);
    GL11.glTexImage2D(GL11.GL_TEXTURE_2D, 0, GL11.GL_RGBA8, width, height, 0, GL12.GL_BGRA,
            GL12.GL_UNSIGNED_INT_8_8_8_8_REV, rgbBuf);
    return tex;
}

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From source file:me.ukl.api.util.TextureUtil.java

License:MIT License

public static void loadTextureMipmap(int tex, int[] rgb, int width, int height) {
    IntBuffer rgbBuf = BufferUtils.createIntBuffer(rgb.length);
    rgbBuf.put(rgb);//from ww  w.j  ava 2s  . c  o m
    rgbBuf.flip();

    bind(tex);

    //If OpenGL30, use glGenerateMipmap, else use the GL_GENERATE_MIPMAP tex param
    if (RenderUtil.GL_30) {
        GL11.glTexImage2D(GL11.GL_TEXTURE_2D, 0, GL11.GL_RGBA8, width, height, 0, GL12.GL_BGRA,
                GL12.GL_UNSIGNED_INT_8_8_8_8_REV, rgbBuf);
        GL30.glGenerateMipmap(GL11.GL_TEXTURE_2D);
    } else {
        GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL14.GL_GENERATE_MIPMAP, GL11.GL_TRUE);
        GL11.glTexImage2D(GL11.GL_TEXTURE_2D, 0, GL11.GL_RGBA8, width, height, 0, GL12.GL_BGRA,
                GL12.GL_UNSIGNED_INT_8_8_8_8_REV, rgbBuf);
    }
}

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

License:Open Source License

private TextureImplementation getTexture(InputStream in, String resourceName, int target, int minFilter,
        int magFilter, boolean flipped, int[] transparent) throws IOException {
    // create the texture ID for this texture
    ByteBuffer textureBuffer;//from  w w w .j  a v a 2 s  .  c om

    LoadableImageData imageData = ImageDataFactory.getImageDataFor(resourceName);
    textureBuffer = imageData.loadImage(new BufferedInputStream(in), flipped, transparent);

    int textureID = createTextureID();
    TextureImplementation texture = new TextureImplementation(resourceName, target, textureID);
    // bind this texture
    GL11.glEnable(target);
    GL11.glBindTexture(target, textureID);

    int width;
    int height;
    int texWidth;
    int texHeight;

    ImageData.Format format;

    width = imageData.getWidth();
    height = imageData.getHeight();
    format = imageData.getFormat();

    texture.setTextureWidth(imageData.getTexWidth());
    texture.setTextureHeight(imageData.getTexHeight());

    texWidth = texture.getTextureWidth();
    texHeight = texture.getTextureHeight();

    IntBuffer temp = BufferUtils.createIntBuffer(16);
    GL11.glGetInteger(GL11.GL_MAX_TEXTURE_SIZE, temp);
    int max = temp.get(0);
    if (texWidth > max || texHeight > max)
        throw new IOException("Attempt to allocate a texture to big for the current hardware");

    int srcPixelFormat = format.getOGLType();

    texture.setWidth(width);
    texture.setHeight(height);
    texture.setImageFormat(format);

    GL11.glTexParameteri(target, GL11.GL_TEXTURE_MIN_FILTER, minFilter);
    GL11.glTexParameteri(target, GL11.GL_TEXTURE_MAG_FILTER, magFilter);

    ContextCapabilities capabilities = GLContext.getCapabilities();

    if (capabilities.OpenGL30 || capabilities.GL_EXT_framebuffer_object
            || capabilities.GL_ARB_framebuffer_object || capabilities.OpenGL14) {
        GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_NEAREST_MIPMAP_LINEAR);
        GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL12.GL_TEXTURE_MAX_LOD, GL11.GL_POLYGON_BIT);
        if (capabilities.OpenGL30)
            GL30.glGenerateMipmap(GL11.GL_TEXTURE_2D);
        else if (capabilities.GL_EXT_framebuffer_object)
            EXTFramebufferObject.glGenerateMipmapEXT(GL11.GL_TEXTURE_2D);
        else if (capabilities.GL_ARB_framebuffer_object)
            ARBFramebufferObject.glGenerateMipmap(GL11.GL_TEXTURE_2D);
        else if (capabilities.OpenGL14)
            GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL14.GL_GENERATE_MIPMAP, GL11.GL_TRUE);
    }

    // produce a texture from the byte buffer
    GL11.glTexImage2D(target, 0, this.dstPixelFormat, get2Fold(width), get2Fold(height), 0, srcPixelFormat,
            GL11.GL_UNSIGNED_BYTE, textureBuffer);
    return texture;
}

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

License:Open Source License

/**
 * Get a texture from an image file./*  w ww  .  j av  a 2s.co m*/
 * 
 * @param dataSource The image data to generate the texture from
 * @param filter The filter to use when scaling the texture
 * @return The texture created
 * @throws IOException Indicates the texture is too big for the hardware
 */
public Texture getTexture(ImageData dataSource, int filter) throws IOException {
    int target = GL11.GL_TEXTURE_2D;

    ByteBuffer textureBuffer;
    textureBuffer = dataSource.getImageBufferData();

    // create the texture ID for this texture
    int textureID = createTextureID();
    TextureImplementation texture = new TextureImplementation("generated:" + dataSource, target, textureID);

    int minFilter = filter;
    int magFilter = filter;

    // bind this texture
    GL11.glEnable(target);
    GL11.glBindTexture(target, textureID);

    int width;
    int height;
    int texWidth;
    int texHeight;

    ImageData.Format format;

    width = dataSource.getWidth();
    height = dataSource.getHeight();
    format = dataSource.getFormat();

    texture.setTextureWidth(dataSource.getTexWidth());
    texture.setTextureHeight(dataSource.getTexHeight());

    texWidth = texture.getTextureWidth();
    texHeight = texture.getTextureHeight();

    int srcPixelFormat = format.getOGLType();

    texture.setWidth(width);
    texture.setHeight(height);
    texture.setImageFormat(format);

    IntBuffer temp = BufferUtils.createIntBuffer(16);
    GL11.glGetInteger(GL11.GL_MAX_TEXTURE_SIZE, temp);
    int max = temp.get(0);
    if (texWidth > max || texHeight > max)
        throw new IOException("Attempt to allocate a texture to big for the current hardware");

    GL11.glTexParameteri(target, GL11.GL_TEXTURE_MIN_FILTER, minFilter);
    GL11.glTexParameteri(target, GL11.GL_TEXTURE_MAG_FILTER, magFilter);

    // produce a texture from the byte buffer
    GL11.glTexImage2D(target, 0, this.dstPixelFormat, get2Fold(width), get2Fold(height), 0, srcPixelFormat,
            GL11.GL_UNSIGNED_BYTE, textureBuffer);
    return texture;
}

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

License:Open Source License

/**
 * Reload a given texture blob; used internally with setHoldTextureData. Call TextureImpl.reload instead.
 * /*ww  w.  j  a  va 2s.  c  o m*/
 * @param texture The texture being reloaded
 * @param srcPixelFormat The source pixel format
 * @param componentCount The component count
 * @param minFilter The minification filter
 * @param magFilter The magnification filter
 * @param textureBuffer The pixel data
 * @return The ID of the newly created texture
 */
public int reload(TextureImplementation texture, int srcPixelFormat, int componentCount, int minFilter,
        int magFilter, ByteBuffer textureBuffer) {
    int target = GL11.GL_TEXTURE_2D;
    int textureID = createTextureID();
    GL11.glEnable(target);
    GL11.glBindTexture(target, textureID);

    GL11.glTexParameteri(target, GL11.GL_TEXTURE_MIN_FILTER, minFilter);
    GL11.glTexParameteri(target, GL11.GL_TEXTURE_MAG_FILTER, magFilter);

    // produce a texture from the byte buffer
    GL11.glTexImage2D(target, 0, this.dstPixelFormat, texture.getTextureWidth(), texture.getTextureHeight(), 0,
            srcPixelFormat, GL11.GL_UNSIGNED_BYTE, textureBuffer);
    return textureID;
}

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From source file:net.minecraft.client.gui.fonts.GlyphCache.java

License:Open Source License

/**
 * Allocate a new OpenGL texture for caching pre-rendered glyph images. The
 * new texture is initialized to fully transparent white so the individual
 * glyphs images within can have a transparent border between them. The new
 * texture remains bound after returning from the function.
 *
 * @todo use GL_ALPHA4 if anti-alias is turned off for even smaller textures
 *///from w  w  w .  j a  va  2  s.c om
private void allocateGlyphCacheTexture() {
    /* Initialize the background to all white but fully transparent. */
    glyphCacheGraphics.clearRect(0, 0, TEXTURE_WIDTH, TEXTURE_HEIGHT);

    /* Allocate new OpenGL texure */
    singleIntBuffer.clear();
    GLAllocation.generateTextureNames(singleIntBuffer);
    textureName = singleIntBuffer.get(0);

    /* Load imageBuffer with pixel data ready for transfer to OpenGL texture */
    updateImageBuffer(0, 0, TEXTURE_WIDTH, TEXTURE_HEIGHT);

    /*
     * Initialize texture with the now cleared BufferedImage. Using a texture with GL_ALPHA8 internal format may result in
     * faster rendering since the GPU has to only fetch 1 byte per texel instead of 4 with a regular RGBA texture.
     */
    GL11.glBindTexture(GL11.GL_TEXTURE_2D, textureName);
    GL11.glTexImage2D(GL11.GL_TEXTURE_2D, 0, GL11.GL_ALPHA8, TEXTURE_WIDTH, TEXTURE_HEIGHT, 0, GL11.GL_RGBA,
            GL11.GL_UNSIGNED_BYTE, imageBuffer);

    /* Explicitely disable mipmap support becuase updateTexture() will only update the base level 0 */
    GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_NEAREST);
    GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST);
}

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From source file:net.minecraft.src.PaintWorld.java

License:Open Source License

public void getTextureForFace(int face) {
    PaintFace pface = renderBlock.paintedFaces[face];
    if (textureBuffer == null) {
        textureBuffer = ByteBuffer.allocateDirect(ARRAY_SIZE);
        textureBuffer.order(ByteOrder.nativeOrder());
    }/*from  ww  w.  j a v  a  2s.com*/
    if (textureId <= 0) {
        textureId = GL11.glGenTextures();
        GL11.glBindTexture(GL11.GL_TEXTURE_2D, textureId);
        GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_NEAREST);
        GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST);
    }
    GL11.glBindTexture(GL11.GL_TEXTURE_2D, textureId);
    textureBuffer.clear();
    textureBuffer.put(pface.points);
    textureBuffer.flip();
    GL11.glTexImage2D(GL11.GL_TEXTURE_2D, 0, GL11.GL_RGBA, ROW, ROW, 0, GL11.GL_RGBA, GL11.GL_BYTE,
            textureBuffer);
}

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

License:Apache License

private void init() {
    glHandle = createGLHandle();/*from w  w  w  . j a  v  a 2 s .co m*/
    GL11.glBindTexture(GL11.GL_TEXTURE_2D, glHandle);
    GL11.glPixelStorei(GL11.GL_UNPACK_ALIGNMENT, 1);
    GL11.glTexImage2D(GL11.GL_TEXTURE_2D, 0, dstImageFormat, width, height, 0, GL12.GL_BGRA,
            GL12.GL_UNSIGNED_INT_8_8_8_8_REV, BufferUtils.createIntBuffer(width * height));
    setFilter(minFilter, magFilter);
    setWrap(uWrap, vWrap);
    getFrameBuffer();
}

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From source file:net.smert.frameworkgl.opengl.helpers.TextureHelper.java

License:Apache License

public void setImage2DBytePixelData(int internalFormat, int width, int height, int format,
        ByteBuffer pixelData) {/*from  w  ww .  j a va 2  s  . c o m*/
    GL11.glTexImage2D(textureTarget, 0, internalFormat, width, height, 0, format, TextureTypes.UNSIGNED_BYTE,
            pixelData);
}

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From source file:net.smert.frameworkgl.opengl.helpers.TextureHelper.java

License:Apache License

public void setImage2DFloatPixelData(int internalFormat, int width, int height, int format,
        FloatBuffer pixelData) {//  w  w  w .  ja v a  2  s  .c om
    GL11.glTexImage2D(textureTarget, 0, internalFormat, width, height, 0, format, TextureTypes.FLOAT,
            pixelData);
}

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