private void writeCustomImage() {
try {
BufferedImage image =
new BufferedImage(width, outputFrames * height, BufferedImage.TYPE_INT_ARGB);
IntBuffer intBuffer = scratchBuffer.asIntBuffer();
int[] argb = new int[width * height];
File path = MCPatcherUtils.getGamePath("custom_" + name + ".png");
logger.info("generating %d %s frames", outputFrames, name);
for (int i = 0; i < outputFrames; i++) {
renderToItems(i * (360.0 / outputFrames));
itemsFBO.read(scratchBuffer);
intBuffer.position(0);
for (int j = 0; j < argb.length; j++) {
switch (MipmapHelper.TEX_FORMAT) {
case GL12.GL_BGRA:
int bgra = intBuffer.get(j);
argb[j] =
(bgra << 24) | ((bgra & 0xff00) << 8) | ((bgra & 0xff0000) >> 8) | (bgra >>> 24);
break;
default:
if (i == 0 && j == 0) {
logger.warning(
"unhandled texture format %d, color channels may be incorrect",
MipmapHelper.TEX_FORMAT);
}
// fall through
case GL11.GL_RGBA:
argb[j] = Integer.rotateRight(intBuffer.get(j), 8);
break;
}
}
image.setRGB(0, i * height, width, height, argb, 0, width);
}
ImageIO.write(image, "png", path);
logger.info("wrote %dx%d %s", image.getWidth(), image.getHeight(), path.getPath());
} catch (Throwable e) {
e.printStackTrace();
}
}
private boolean render(boolean itemFrameRenderer) {
if (!ok) {
return false;
}
if (!itemFrameRenderer) {
boolean changed = true;
if (!keyboard.isEnabled()) {
changed = false;
} else if (keyboard.isKeyPressed(Keyboard.KEY_NUMPAD2)) {
scaleYDelta -= STEP;
} else if (keyboard.isKeyPressed(Keyboard.KEY_NUMPAD8)) {
scaleYDelta += STEP;
} else if (keyboard.isKeyPressed(Keyboard.KEY_NUMPAD4)) {
scaleXDelta -= STEP;
} else if (keyboard.isKeyPressed(Keyboard.KEY_NUMPAD6)) {
scaleXDelta += STEP;
} else if (keyboard.isKeyPressed(Keyboard.KEY_DOWN)) {
offsetYDelta += STEP;
} else if (keyboard.isKeyPressed(Keyboard.KEY_UP)) {
offsetYDelta -= STEP;
} else if (keyboard.isKeyPressed(Keyboard.KEY_LEFT)) {
offsetXDelta -= STEP;
} else if (keyboard.isKeyPressed(Keyboard.KEY_RIGHT)) {
offsetXDelta += STEP;
} else if (keyboard.isKeyPressed(Keyboard.KEY_MULTIPLY)) {
scaleXDelta = scaleYDelta = offsetXDelta = offsetYDelta = 0.0f;
} else {
changed = false;
}
if (changed) {
logger.info("");
logger.info("scaleX %+f", scaleXDelta);
logger.info("scaleY %+f", scaleYDelta);
logger.info("offsetX %+f", offsetXDelta);
logger.info("offsetY %+f", offsetYDelta);
lastAngle = ANGLE_UNSET;
}
if (outputFrames > 0) {
writeCustomImage();
outputFrames = 0;
}
}
double angle = getAngle(icon);
if (!useScratchTexture) {
// render directly to items.png
if (angle != lastAngle) {
renderToItems(angle);
lastAngle = angle;
}
} else if (itemFrameRenderer) {
// look in itemFrames cache first
ByteBuffer buffer = itemFrames.get(angle);
if (buffer == null) {
logger.fine("rendering %s at angle %f for item frame", name, angle);
buffer = ByteBuffer.allocateDirect(width * height * 4);
renderToItems(angle);
itemsFBO.read(buffer);
itemFrames.put(angle, buffer);
} else {
itemsFBO.write(buffer);
}
lastItemFrameRenderer = true;
} else if (lastAngle == ANGLE_UNSET) {
// first time rendering - render all N copies
for (FBO fbo : scratchFBO) {
renderToFB(angle, fbo);
}
scratchFBO[0].read(scratchBuffer);
itemsFBO.write(scratchBuffer);
lastAngle = angle;
scratchIndex = 0;
} else if (lastItemFrameRenderer || angle != lastAngle) {
// render to buffer i + 1
// update items.png from buffer i
int nextIndex = (scratchIndex + 1) % NUM_SCRATCH_TEXTURES;
if (angle != lastAngle) {
renderToFB(angle, scratchFBO[nextIndex]);
scratchFBO[scratchIndex].read(scratchBuffer);
}
itemsFBO.write(scratchBuffer);
lastAngle = angle;
scratchIndex = nextIndex;
lastItemFrameRenderer = false;
}
int glError = GL11.glGetError();
if (glError != 0) {
logger.severe("%s during %s update", GLU.gluErrorString(glError), name);
ok = false;
}
return ok;
}