void Buffer::createFromDrawable(Drawable &obj) {
shouldDelete = true;
if (obj.getW() > 512 || obj.getH() > 512)
throw RubyException(rb_eRuntimeError, "Drawable too big for a buffer.");
int width = obj.getW();
int height = obj.getH();
img = oslCreateImage(width, height, OSL_IN_VRAM, OSL_PF_8888);
if (!img) {
img = oslCreateImage(width, height, OSL_IN_RAM, OSL_PF_8888);
if (!img)
throw RubyException(rb_eRuntimeError, "Buffer could not be created");
}
else {
Buffer::registerInVram(img);
}
OSL_IMAGE *old = oslGetDrawBuffer();
setActual();
obj.clearMove();
obj.setPos(0, 0);
obj.draw();
obj.cancelMove();
oslSetDrawBuffer(old);
}
Buffer::Buffer(Drawable &obj): shouldDelete(true) {
setClass("Buffer");
if (obj.getW() > 512 || obj.getH() > 512)
throw RubyException(rb_eRuntimeError, "Drawable too big for a buffer.");
img = oslCreateImage(obj.getW(), obj.getH(), OSL_IN_VRAM, OSL_PF_8888);
if (!img)
throw RubyException(rb_eRuntimeError, "Buffer could not be created");
OSL_IMAGE *old = oslGetDrawBuffer();
setActual();
obj.clearMove();
obj.setPos(0, 0);
obj.draw();
obj.cancelMove();
oslSetDrawBuffer(old);
}