private FBO(int texture, boolean ownTexture, int x0, int y0, int width, int height) {
this.texture = texture;
this.ownTexture = ownTexture;
this.x0 = x0;
this.y0 = y0;
this.width = width;
this.height = height;
frameBuffer = EXTFramebufferObject.glGenFramebuffersEXT();
if (frameBuffer < 0) {
throw new RuntimeException("could not get framebuffer object");
}
GLAPI.glBindTexture(texture);
EXTFramebufferObject.glBindFramebufferEXT(
EXTFramebufferObject.GL_FRAMEBUFFER_EXT, frameBuffer);
EXTFramebufferObject.glFramebufferTexture2DEXT(
EXTFramebufferObject.GL_FRAMEBUFFER_EXT,
EXTFramebufferObject.GL_COLOR_ATTACHMENT0_EXT,
GL11.GL_TEXTURE_2D,
texture,
0);
}
public void glGenFramebuffers(int n, IntBuffer framebuffers) {
EXTFramebufferObject.glGenFramebuffersEXT(framebuffers);
}
@Override
public void writeGPU() {
if (framebuffer != INVALID_BUFFER)
throw new IllegalStateException("Framebuffer already created!");
// Create the color buffer for this renderTexture
textureID = GL11.glGenTextures();
GL11.glBindTexture(GL11.GL_TEXTURE_2D, textureID);
GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST);
GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_NEAREST);
GL11.glTexImage2D(
GL11.GL_TEXTURE_2D,
0,
GL11.GL_RGBA8,
width,
height,
0,
GL11.GL_RGBA,
GL11.GL_INT,
(java.nio.ByteBuffer) null); // Create the texture data
if (useEXT) {
framebuffer = EXTFramebufferObject.glGenFramebuffersEXT();
EXTFramebufferObject.glBindFramebufferEXT(
EXTFramebufferObject.GL_FRAMEBUFFER_EXT, framebuffer);
GL11.glBindTexture(GL11.GL_TEXTURE_2D, textureID);
EXTFramebufferObject.glFramebufferTexture2DEXT(
EXTFramebufferObject.GL_FRAMEBUFFER_EXT,
EXTFramebufferObject.GL_COLOR_ATTACHMENT0_EXT,
GL11.GL_TEXTURE_2D,
textureID,
0);
if (useDepthBuffer) {
depthTarget = GL30.glGenRenderbuffers();
EXTFramebufferObject.glBindRenderbufferEXT(
EXTFramebufferObject.GL_RENDERBUFFER_EXT, depthTarget);
EXTFramebufferObject.glRenderbufferStorageEXT(
EXTFramebufferObject.GL_RENDERBUFFER_EXT,
GL11.GL_DEPTH_COMPONENT,
this.getWidth(),
this.getHeight());
EXTFramebufferObject.glFramebufferRenderbufferEXT(
EXTFramebufferObject.GL_FRAMEBUFFER_EXT,
GL30.GL_DEPTH_ATTACHMENT,
EXTFramebufferObject.GL_RENDERBUFFER_EXT,
depthTarget);
}
if (EXTFramebufferObject.glCheckFramebufferStatusEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT)
!= EXTFramebufferObject.GL_FRAMEBUFFER_COMPLETE_EXT) {
System.out.println("ERROR: Framebuffer not complete");
throw new ComputerIsPotatoException("Framebuffer not complete");
}
} else {
framebuffer = GL30.glGenFramebuffers();
GL30.glBindFramebuffer(GL30.GL_FRAMEBUFFER, framebuffer);
GL11.glBindTexture(GL11.GL_TEXTURE_2D, textureID);
GL30.glFramebufferTexture2D(
GL30.GL_FRAMEBUFFER, GL30.GL_COLOR_ATTACHMENT0, GL11.GL_TEXTURE_2D, textureID, 0);
if (useDepthBuffer) {
depthTarget = GL30.glGenRenderbuffers();
GL30.glBindRenderbuffer(GL30.GL_RENDERBUFFER, depthTarget);
GL30.glRenderbufferStorage(
GL30.GL_RENDERBUFFER, GL11.GL_DEPTH_COMPONENT, this.getWidth(), this.getHeight());
GL30.glFramebufferRenderbuffer(
GL30.GL_FRAMEBUFFER, GL30.GL_DEPTH_ATTACHMENT, GL30.GL_RENDERBUFFER, depthTarget);
}
GL30.glBindFramebuffer(GL30.GL_FRAMEBUFFER, SCREEN_BUFFER);
if (GL30.glCheckFramebufferStatus(GL30.GL_FRAMEBUFFER) != GL30.GL_FRAMEBUFFER_COMPLETE) {
System.out.println("ERROR: Framebuffer not complete");
throw new ComputerIsPotatoException("Framebuffer not complete");
}
}
GL11.glBindTexture(GL11.GL_TEXTURE_2D, 0);
}