// Copies source texture tex into this.
protected void copyTexture(
int texTarget,
int texName,
int texWidth,
int texHeight,
int x,
int y,
int w,
int h,
boolean scale) {
if (tempFbo == null) {
tempFbo = new FrameBuffer(parent, glWidth, glHeight);
}
// This texture is the color (destination) buffer of the FBO.
tempFbo.setColorBuffer(this);
tempFbo.disableDepthTest();
// FBO copy:
pg.pushFramebuffer();
pg.setFramebuffer(tempFbo);
if (scale) {
// Rendering tex into "this", and scaling the source rectangle
// to cover the entire destination region.
pgl.drawTexture(texTarget, texName, texWidth, texHeight, x, y, w, h, 0, 0, width, height);
} else {
// Rendering tex into "this" but without scaling so the contents
// of the source texture fall in the corresponding texels of the
// destination.
pgl.drawTexture(texTarget, texName, texWidth, texHeight, x, y, w, h, x, y, w, h);
}
pg.popFramebuffer();
updateTexels(x, y, w, h);
}
// Copies source texture tex into this.
protected void copyTexture(Texture tex, int x, int y, int w, int h, boolean scale) {
if (tex == null) {
throw new RuntimeException("Source texture is null");
}
if (tempFbo == null) {
tempFbo = new FrameBuffer(glWidth, glHeight);
}
// This texture is the color (destination) buffer of the FBO.
tempFbo.setColorBuffer(this);
tempFbo.disableDepthTest();
// FBO copy:
PGraphicsOpenGL.pushFramebuffer();
PGraphicsOpenGL.setFramebuffer(tempFbo);
// Clear the color buffer to make sure that the alpha channel is set to
// full transparency
pgl.clearColor(0, 0, 0, 0);
pgl.clear(PGL.COLOR_BUFFER_BIT);
if (scale) {
// Rendering tex into "this", and scaling the source rectangle
// to cover the entire destination region.
pgl.drawTexture(
tex.glTarget,
tex.glName,
tex.glWidth,
tex.glHeight,
tempFbo.width,
tempFbo.height,
x,
y,
w,
h,
0,
0,
width,
height);
} else {
// Rendering tex into "this" but without scaling so the contents
// of the source texture fall in the corresponding texels of the
// destination.
pgl.drawTexture(
tex.glTarget,
tex.glName,
tex.glWidth,
tex.glHeight,
tempFbo.width,
tempFbo.height,
x,
y,
w,
h,
x,
y,
w,
h);
}
PGraphicsOpenGL.popFramebuffer();
updateTexels(x, y, w, h);
}
