Function PocoDrawingBegin

modules/commodetto/commodettoPocoBlit.c:3513–3557

}

void PocoDrawingBegin(Poco poco, PocoCoordinate x, PocoCoordinate y, PocoDimension w, PocoDimension h)
{
	// clip against the display
	if (x < 0) {
		w += x;
		x = 0;
	}
	else if (x >= poco->width)
		w = 0;

	if (y < 0) {
		h += y;
		y = 0;
	}
	else if (y >= poco->height)
		h = 0;

	if ((x + w) > poco->width)
		w = poco->width - x;
	if ((y + h) > poco->height)
		h = poco->height - y;

	// rotate
	rotateCoordinatesAndDimensions(poco->width, poco->height, x, y, w, h);

	// get started
	poco->next = (PocoCommand)poco->displayList;
	poco->flags &= ~(kPocoFlagErrorDisplayListOverflow | kPocoFlagErrorStackProblem | kPocoFlagGCDisabled);
	poco->stackDepth = 0;
	poco->xOrigin = poco->yOrigin = 0;

	poco->x = x;
	poco->y = y;
	poco->w = w;
	poco->h = h;

	poco->xMax = x + w;
	poco->yMax = y + h;

	poco->flags |= kPocoFlagDidBegin;

#if kPocoFrameBuffer
	poco->frameBuffer = NULL;
#endif
 }

int PocoDrawingEnd(Poco poco, PocoPixel *pixels, int byteLength, PocoRenderedPixelsReceiver pixelReceiver, void *refCon)
{