Java tutorial
/** * Copyright 2012 Jason Sorensen (sorensenj@smert.net) * * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the * specific language governing permissions and limitations under the License. */ package net.smert.frameworkgl.opengl.helpers; import java.nio.ByteBuffer; import java.nio.FloatBuffer; import java.nio.IntBuffer; import java.nio.ShortBuffer; import org.lwjgl.opengl.GL11; import org.lwjgl.opengl.GL12; import org.lwjgl.opengl.GL15; import org.lwjgl.opengl.GL20; /** * * @author Jason Sorensen <sorensenj@smert.net> */ public class VertexBufferObjectHelper { public void bindColors(int vboID, int size, int type, int strideBytes, int offsetBytes) { GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, vboID); GL11.glColorPointer(size, type, strideBytes, offsetBytes); } public void bindNormals(int vboID, int type, int strideBytes, int offsetBytes) { GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, vboID); GL11.glNormalPointer(type, strideBytes, offsetBytes); } public void bindVertexAttrib(int vboID, int index, int size, int type, int strideBytes, int offsetBytes) { GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, vboID); GL20.glVertexAttribPointer(index, size, type, false, strideBytes, offsetBytes); } public void bindVertexAttribNormalized(int vboID, int index, int size, int type, int strideBytes, int offsetBytes) { GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, vboID); GL20.glVertexAttribPointer(index, size, type, true, strideBytes, offsetBytes); } public void bindVertices(int vboID, int size, int type, int strideBytes, int offsetBytes) { GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, vboID); GL11.glVertexPointer(size, type, strideBytes, offsetBytes); } public void bindVerticesIndex(int vboID) { GL15.glBindBuffer(GL15.GL_ELEMENT_ARRAY_BUFFER, vboID); } public void bindTexCoords(int vboID, int size, int type, int strideBytes, int offsetBytes) { GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, vboID); GL11.glTexCoordPointer(size, type, strideBytes, offsetBytes); } public int create() { return GL15.glGenBuffers(); } public void delete(int vboID) { GL15.glDeleteBuffers(vboID); } public void disableColors() { GL11.glDisableClientState(GL11.GL_COLOR_ARRAY); } public void disableNormals() { GL11.glDisableClientState(GL11.GL_NORMAL_ARRAY); } public void disableTexCoords() { GL11.glDisableClientState(GL11.GL_TEXTURE_COORD_ARRAY); } public void disableVertexAttribArray(int index) { GL20.glDisableVertexAttribArray(index); } public void disableVertices() { GL11.glDisableClientState(GL11.GL_VERTEX_ARRAY); } public void drawArrays(int mode, int first, int count) { GL11.glDrawArrays(mode, first, count); } public void drawElements(int mode, int count, int type, long byteOffset) { GL11.glDrawElements(mode, count, type, byteOffset); } public void drawRangeElements(int mode, int minIndex, int maxIndex, int count, int type, long byteOffset) { GL12.glDrawRangeElements(mode, minIndex, maxIndex, count, type, byteOffset); } public void enableColors() { GL11.glEnableClientState(GL11.GL_COLOR_ARRAY); } public void enableNormals() { GL11.glEnableClientState(GL11.GL_NORMAL_ARRAY); } public void enableTexCoords() { GL11.glEnableClientState(GL11.GL_TEXTURE_COORD_ARRAY); } public void enableVertexAttribArray(int index) { GL20.glEnableVertexAttribArray(index); } public void enableVertices() { GL11.glEnableClientState(GL11.GL_VERTEX_ARRAY); } public void setBufferData(int vboID, ByteBuffer byteBuffer, int usage) { GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, vboID); GL15.glBufferData(GL15.GL_ARRAY_BUFFER, byteBuffer, usage); } public void setBufferData(int vboID, FloatBuffer floatBuffer, int usage) { GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, vboID); GL15.glBufferData(GL15.GL_ARRAY_BUFFER, floatBuffer, usage); } public void setBufferData(int vboID, IntBuffer intBuffer, int usage) { GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, vboID); GL15.glBufferData(GL15.GL_ARRAY_BUFFER, intBuffer, usage); } public void setBufferData(int vboID, ShortBuffer shortBuffer, int usage) { GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, vboID); GL15.glBufferData(GL15.GL_ARRAY_BUFFER, shortBuffer, usage); } public void setBufferElementData(int vboID, ByteBuffer byteBuffer, int usage) { GL15.glBindBuffer(GL15.GL_ELEMENT_ARRAY_BUFFER, vboID); GL15.glBufferData(GL15.GL_ELEMENT_ARRAY_BUFFER, byteBuffer, usage); } public void setBufferElementData(int vboID, IntBuffer intBuffer, int usage) { GL15.glBindBuffer(GL15.GL_ELEMENT_ARRAY_BUFFER, vboID); GL15.glBufferData(GL15.GL_ELEMENT_ARRAY_BUFFER, intBuffer, usage); } public void setBufferElementData(int vboID, ShortBuffer shortBuffer, int usage) { GL15.glBindBuffer(GL15.GL_ELEMENT_ARRAY_BUFFER, vboID); GL15.glBufferData(GL15.GL_ELEMENT_ARRAY_BUFFER, shortBuffer, usage); } public void unbind() { GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0); GL15.glBindBuffer(GL15.GL_ELEMENT_ARRAY_BUFFER, 0); } public void updateBufferData(int vboID, int offsetBytes, ByteBuffer byteBuffer) { GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, vboID); GL15.glBufferSubData(GL15.GL_ARRAY_BUFFER, offsetBytes, byteBuffer); } public void updateBufferData(int vboID, int offsetBytes, FloatBuffer floatBuffer) { GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, vboID); GL15.glBufferSubData(GL15.GL_ARRAY_BUFFER, offsetBytes, floatBuffer); } public void updateBufferData(int vboID, int offsetBytes, IntBuffer intBuffer) { GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, vboID); GL15.glBufferSubData(GL15.GL_ARRAY_BUFFER, offsetBytes, intBuffer); } public void updateBufferData(int vboID, int offsetBytes, ShortBuffer shortBuffer) { GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, vboID); GL15.glBufferSubData(GL15.GL_ARRAY_BUFFER, offsetBytes, shortBuffer); } public void updateBufferElementData(int vboID, int offsetBytes, ByteBuffer byteBuffer) { GL15.glBindBuffer(GL15.GL_ELEMENT_ARRAY_BUFFER, vboID); GL15.glBufferSubData(GL15.GL_ELEMENT_ARRAY_BUFFER, offsetBytes, byteBuffer); } public void updateBufferElementData(int vboID, int offsetBytes, IntBuffer intBuffer) { GL15.glBindBuffer(GL15.GL_ELEMENT_ARRAY_BUFFER, vboID); GL15.glBufferSubData(GL15.GL_ELEMENT_ARRAY_BUFFER, offsetBytes, intBuffer); } public void updateBufferElementData(int vboID, int offsetBytes, ShortBuffer shortBuffer) { GL15.glBindBuffer(GL15.GL_ELEMENT_ARRAY_BUFFER, vboID); GL15.glBufferSubData(GL15.GL_ELEMENT_ARRAY_BUFFER, offsetBytes, shortBuffer); } }