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);
}
void Buffer::resize(int w, int h) {
if (!shouldDelete)
throw RubyException(rb_eRuntimeError, "Not allowed to resize this Buffer");
OSL_IMAGE *old_image = img;
OSL_IMAGE *old_buffer = oslGetDrawBuffer();
img = oslCreateImage(w, h, OSL_IN_VRAM, img->pixelFormat);
if (!img) {
img = oslCreateImage(w, h, OSL_IN_RAM, img->pixelFormat);
if (!img)
throw RubyException(rb_eRuntimeError, "Could not recreate the buffer.");
}
else {
Buffer::registerInVram(img);
}
setActual();
oslDrawImageXY(old_image, 0, 0);
oslSetDrawBuffer(old_buffer);
if (old_image->location == OSL_IN_RAM)
oslDeleteImage(old_image);
else
Buffer::removeFromVram(old_image);
}
void Buffer::resize(int w, int h) {
OSL_IMAGE *old_image = img;
OSL_IMAGE *old_buffer = oslGetDrawBuffer();
img = oslCreateImage(w, h, OSL_IN_VRAM, img->pixelFormat);
if (!img)
throw RubyException(rb_eRuntimeError, "Could not recreate the buffer.");
setActual();
oslDrawImageXY(old_image, 0, 0);
oslSetDrawBuffer(old_buffer);
oslDeleteImage(old_image);
}
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);
}
void Buffer::draw(Buffer &obj) {
OSL_IMAGE *old = oslGetDrawBuffer();
setActual();
obj.draw();
oslSetDrawBuffer(old);
}
