@Override
public void draw(GameTime gameTime) {
GL11.glClearColor(0, 0, 0, 0);
GL11.glClearDepth(1.0);
GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);
RasterizerState.CULL_CLOCKWISE.set();
BlendState.OPAQUE.set();
DepthState.DEFAULT.set();
program.use();
texture.use(TextureUnit.Texture0, program.getUniform("Texture"));
vb.useAsAttrib(fxsi);
ib.bind();
GL11.glDrawElements(PrimitiveType.Triangles, 6, GLType.UnsignedInt, 0);
ib.unbind();
texture.unuse();
GLProgram.unuse();
if (!savedImage) {
int sw = game.getWidth();
int sh = game.getHeight();
ByteBuffer pb = NativeMem.createByteBuffer(sw * sh * 4);
GL11.glReadPixels(0, 0, sw, sh, PixelFormat.Rgba, GLType.UnsignedByte, pb);
pb.position(0);
pb.limit(sw * sh * 4);
byte[] cb = new byte[4];
BufferedImage im = new BufferedImage(sw, sh, BufferedImage.TYPE_INT_ARGB);
for (int y = sh - 1; y >= 0; y--) {
for (int x = 0; x < sw; x++) {
pb.get(cb);
im.setRGB(
x, y, (cb[2] & 0xFF) | ((cb[1] & 0xFF) << 8) | ((cb[0] & 0xFF) << 16) | 0xFF000000);
}
}
try {
ImageIO.write(im, "png", new File("Diag.png"));
System.out.println("Image Has Been Saved");
} catch (IOException e) {
System.out.println(e.getMessage());
}
savedImage = true;
}
}
@Override
public void build() {
program = new GLProgram();
program.quickCreateResource("Diag", "cs4620/util/Diag.vert", "cs4620/util/Diag.frag", null);
fxsi =
new ShaderInterface(
new ArrayBind[] {
new ArrayBind(Semantic.Position, GLType.Float, 3, 0),
new ArrayBind(Semantic.TexCoord, GLType.Float, 2, 3 * 4)
});
fxsi.build(program.semanticLinks);
vb = new GLBuffer(BufferTarget.ArrayBuffer, BufferUsageHint.StaticDraw, true);
vb.setAsVertex(5 * 4);
FloatBuffer vBuf = NativeMem.createFloatBuffer(4 * 5);
vBuf.put(
new float[] {
-0.5f, 0.5f, 0, 0, 1, 0.5f, 0.5f, 0, 1, 1, -0.5f, -0.5f, 0, 0, 0, 0.5f, -0.5f, 0, 1, 0
});
vBuf.flip();
vb.setDataInitial(vBuf);
ib = new GLBuffer(BufferTarget.ElementArrayBuffer, BufferUsageHint.StaticDraw, true);
ib.setAsIndexInt();
IntBuffer iBuf = NativeMem.createIntBuffer(6);
iBuf.put(new int[] {0, 2, 1, 1, 2, 3});
iBuf.flip();
ib.setDataInitial(iBuf);
texture = new GLTexture(TextureTarget.Texture2D, true);
texture.internalFormat = PixelInternalFormat.Rgba;
try {
texture.setImage2DResource("cs4620/util/Diag.png", false);
} catch (Exception e) {
System.out.println("NO IMAGE\r\n" + e.getMessage());
}
}