Examples of javax.media.opengl.GL2.glTexSubImage2D()

javax.media.opengl.GL2.glTexSubImage2D()

            }
        }
        gl.glPixelStorei(GL2.GL_UNPACK_ROW_LENGTH, rasWidth);
        gl.glPixelStorei(GL2.GL_UNPACK_SKIP_PIXELS, minX);
        gl.glPixelStorei(GL2.GL_UNPACK_SKIP_ROWS, minY);
        gl.glTexSubImage2D(GL.GL_TEXTURE_2D, 0, minX, minY,
                maxX - minX, maxY - minY,
                glType, GL.GL_UNSIGNED_BYTE,
                ByteBuffer.wrap(imageYdown));
        gl.glPixelStorei(GL2.GL_UNPACK_ROW_LENGTH, 0);
        gl.glPixelStorei(GL2.GL_UNPACK_SKIP_PIXELS, 0);

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                buf = (ByteBuffer) data;
            }


            // offset by the imageOffset
            buf.position((tilew * imgYOffset + imgXOffset) * numBytes);
            gl.glTexSubImage2D(target, level, xoffset, yoffset, width, height,
                    format, GL.GL_UNSIGNED_BYTE, buf);


        } else if((dataType == ImageComponentRetained.IMAGE_DATA_TYPE_INT_ARRAY) ||
                (dataType == ImageComponentRetained.IMAGE_DATA_TYPE_INT_BUFFER)) {

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                buf = (IntBuffer) data;
            }


            // offset by the imageOffset
            buf.position(tilew * imgYOffset + imgXOffset);
            gl.glTexSubImage2D(target, level, xoffset, yoffset, width, height,
                    format, type, buf);


            /* Restore Alpha scale and bias */
            if(forceAlphaToOne) {
                gl.glPixelTransferf(GL2.GL_ALPHA_SCALE, 1.0f);

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