Java 类org.lwjgl.opengl.GL21 实例源码

private static int getInternalTextureFormat(Bitmap.Format format)
{
    switch (format)
    {
        case GRAYSCALE:
            return GL11.GL_LUMINANCE;
        case GRAYSCALEALPHA:
            return GL11.GL_LUMINANCE_ALPHA;
        case RGB: return GL21.GL_SRGB;
        case RGBA: return GL21.GL_SRGB_ALPHA;
        case DEPTH:
            return GL14.GL_DEPTH_COMPONENT16;
        default:
            throw new UnsupportedOperationException("Unrecognized bitmap format!");
    }
}

private PixelPackBuffer(int id, int size) {
    super(String.valueOf(id), "pbo");
    this.id = id;
    this.size = size;
    bind();
    GL15.nglBufferData(GL21.GL_PIXEL_PACK_BUFFER, size, MemoryUtil.NULL, GL15.GL_STREAM_READ);
    unbind();
}

/**
 * Get this buffer
 * @param dest The destination buffer
 * @return The detination buffer or a new buffer it it was <code>null</code>
 */
public ByteBuffer get(ByteBuffer dest) {
    if (dest == null)
        dest = BufferUtils.createByteBuffer(size);
    bind();
    ByteBuffer src = GL15.glMapBuffer(GL21.GL_PIXEL_PACK_BUFFER, GL15.GL_READ_ONLY);
    MemoryUtil.memCopy(MemoryUtil.memAddress(src), MemoryUtil.memAddress(dest), size);
    GL15.glUnmapBuffer(GL21.GL_PIXEL_PACK_BUFFER);
    unbind();
    return dest;
}

private static void buildMapping() {
    if (mapping != null) return;
    Multimap<Integer, String> map = HashMultimap.create();
    List<Class<?>> classes = ImmutableList.of(
            GL11.class, GL12.class, GL13.class, GL14.class, GL15.class,
            GL20.class, GL21.class, GL30.class, GL31.class, GL32.class,
            GL33.class, GL40.class, GL41.class, GL42.class, GL43.class,
            GL44.class, GL45.class, GLFW.class
            );
    for (Class<?> clazz : classes) {
        for (Field f : clazz.getDeclaredFields()) {
            if (f.getName().toUpperCase(Locale.ROOT).equals(f.getName()) &&
                    f.getType() == int.class && Modifier.isPublic(f.getModifiers()) && Modifier.isStatic(f.getModifiers())) {
                List<String> li = Splitter.on('_').splitToList(f.getName());
                li = li.subList(1, li.size());
                String clean =
                    Joiner.on(' ').join(
                        li.stream()
                            .map(Errors::toTitleCase)
                            .iterator());
                try {
                    map.put(f.getInt(null), clean);
                } catch (Throwable t) {
                    t.printStackTrace();
                }
            }
        }
    }
    mapping = map;
}

private void func_148082_k()
{
    switch (this.field_148100_d)
    {
        case 8:
            GL20.glUniformMatrix2(this.field_148102_b, true, this.field_148098_f);
            break;

        case 9:
            GL20.glUniformMatrix3(this.field_148102_b, true, this.field_148098_f);
            break;

        case 10:
            GL20.glUniformMatrix4(this.field_148102_b, true, this.field_148098_f);
            break;

        case 11:
            GL21.glUniformMatrix2x3(this.field_148102_b, true, this.field_148098_f);
            break;

        case 12:
            GL21.glUniformMatrix2x4(this.field_148102_b, true, this.field_148098_f);
            break;

        case 13:
            GL21.glUniformMatrix3x2(this.field_148102_b, true, this.field_148098_f);
            break;

        case 14:
            GL21.glUniformMatrix3x4(this.field_148102_b, true, this.field_148098_f);
            break;

        case 15:
            GL21.glUniformMatrix4x2(this.field_148102_b, true, this.field_148098_f);
            break;

        case 16:
            GL21.glUniformMatrix4x3(this.field_148102_b, true, this.field_148098_f);
    }
}

/**
 * Bind this buffer
 */
public void bind() {
    GL15.glBindBuffer(GL21.GL_PIXEL_PACK_BUFFER, id);
}

/**
 * Unbind this buffer
 */
public void unbind() {
    GL15.glBindBuffer(GL21.GL_PIXEL_PACK_BUFFER, 0);
}

@Override
public void glUniformMatrix2x3fv (int location, int count, boolean transpose, FloatBuffer value) {
    GL21.glUniformMatrix2x3fv(location, transpose, value);
}

@Override
public void glUniformMatrix3x2fv (int location, int count, boolean transpose, FloatBuffer value) {
    GL21.glUniformMatrix3x2fv(location, transpose, value);
}

@Override
public void glUniformMatrix2x4fv (int location, int count, boolean transpose, FloatBuffer value) {
    GL21.glUniformMatrix2x4fv(location, transpose, value);
}

@Override
public void glUniformMatrix4x2fv (int location, int count, boolean transpose, FloatBuffer value) {
    GL21.glUniformMatrix4x2fv(location, transpose, value);
}

@Override
public void glUniformMatrix3x4fv (int location, int count, boolean transpose, FloatBuffer value) {
    GL21.glUniformMatrix3x4fv(location, transpose, value);
}

@Override
public void glUniformMatrix4x3fv (int location, int count, boolean transpose, FloatBuffer value) {
    GL21.glUniformMatrix4x3fv(location, transpose, value);
}

@Override
public void glUniformMatrix2x3fv (int location, int count, boolean transpose, FloatBuffer value) {
    GL21.glUniformMatrix2x3(location, transpose, value);
}

@Override
public void glUniformMatrix3x2fv (int location, int count, boolean transpose, FloatBuffer value) {
    GL21.glUniformMatrix3x2(location, transpose, value);
}

@Override
public void glUniformMatrix2x4fv (int location, int count, boolean transpose, FloatBuffer value) {
    GL21.glUniformMatrix2x4(location, transpose, value);
}

@Override
public void glUniformMatrix4x2fv (int location, int count, boolean transpose, FloatBuffer value) {
    GL21.glUniformMatrix4x2(location, transpose, value);
}

@Override
public void glUniformMatrix3x4fv (int location, int count, boolean transpose, FloatBuffer value) {
    GL21.glUniformMatrix3x4(location, transpose, value);
}

@Override
public void glUniformMatrix4x3fv (int location, int count, boolean transpose, FloatBuffer value) {
    GL21.glUniformMatrix4x3(location, transpose, value);
}