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📄 orders.c

📁 ReactOS是一些高手根据Windows XP的内核编写出的类XP。内核实现机理和API函数调用几乎相同。甚至可以兼容XP的程序。喜欢研究系统内核的人可以看一看。
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	if (present & 0x000020)
		in_uint8(s, os->opcode);

	if (present & 0x000040)
		rdp_in_coord(s, &os->srcx, delta);

	if (present & 0x000080)
		rdp_in_coord(s, &os->srcy, delta);

	if (present & 0x000100)
		rdp_in_colour(s, &os->bgcolour);

	if (present & 0x000200)
		rdp_in_colour(s, &os->fgcolour);

	rdp_parse_brush(s, &os->brush, present >> 10);

	if (present & 0x008000)
		in_uint16_le(s, os->cache_idx);

	if (present & 0x010000)
		in_uint16_le(s, os->unknown);

	DEBUG(("TRIBLT(op=0x%x,x=%d,y=%d,cx=%d,cy=%d,id=%d,idx=%d,bs=%d,bg=0x%x,fg=0x%x)\n",
	       os->opcode, os->x, os->y, os->cx, os->cy, os->cache_id, os->cache_idx,
	       os->brush.style, os->bgcolour, os->fgcolour));

	bitmap = cache_get_bitmap(This, os->cache_id, os->cache_idx);
	if (bitmap == NULL)
		return;

	ui_triblt(This, os->opcode, os->x, os->y, os->cx, os->cy,
		  bitmap, os->srcx, os->srcy, &os->brush, os->bgcolour, os->fgcolour);
}

/* Process a polygon order */
static void
process_polygon(RDPCLIENT * This, STREAM s, POLYGON_ORDER * os, uint32 present, BOOL delta)
{
	int index, data, next;
	uint8 flags = 0;
	POINT *points;

	if (present & 0x01)
		rdp_in_coord(s, &os->x, delta);

	if (present & 0x02)
		rdp_in_coord(s, &os->y, delta);

	if (present & 0x04)
		in_uint8(s, os->opcode);

	if (present & 0x08)
		in_uint8(s, os->fillmode);

	if (present & 0x10)
		rdp_in_colour(s, &os->fgcolour);

	if (present & 0x20)
		in_uint8(s, os->npoints);

	if (present & 0x40)
	{
		in_uint8(s, os->datasize);
		in_uint8a(s, os->data, os->datasize);
	}

	DEBUG(("POLYGON(x=%d,y=%d,op=0x%x,fm=%d,fg=0x%x,n=%d,sz=%d)\n",
	       os->x, os->y, os->opcode, os->fillmode, os->fgcolour, os->npoints, os->datasize));

	DEBUG(("Data: "));

	for (index = 0; index < os->datasize; index++)
		DEBUG(("%02x ", os->data[index]));

	DEBUG(("\n"));

	if (os->opcode < 0x01 || os->opcode > 0x10)
	{
		error("bad ROP2 0x%x\n", os->opcode);
		return;
	}

	points = (POINT *) malloc((os->npoints + 1) * sizeof(POINT));

	if(points == NULL)
		return;

	memset(points, 0, (os->npoints + 1) * sizeof(POINT));

	points[0].x = os->x;
	points[0].y = os->y;

	index = 0;
	data = ((os->npoints - 1) / 4) + 1;
	for (next = 1; (next <= os->npoints) && (next < 256) && (data < os->datasize); next++)
	{
		if ((next - 1) % 4 == 0)
			flags = os->data[index++];

		if (~flags & 0x80)
			points[next].x = parse_delta(os->data, &data);

		if (~flags & 0x40)
			points[next].y = parse_delta(os->data, &data);

		flags <<= 2;
	}

	if (next - 1 == os->npoints)
#if 0
		ui_polygon(This, os->opcode - 1, os->fillmode, points, os->npoints + 1, NULL, 0,
			   os->fgcolour);
#else
		ui_polygon(This, os->opcode, os->fillmode, points, os->npoints + 1, NULL, 0,
			   os->fgcolour);
#endif
	else
		error("polygon parse error\n");

	free(points);
}

/* Process a polygon2 order */
static void
process_polygon2(RDPCLIENT * This, STREAM s, POLYGON2_ORDER * os, uint32 present, BOOL delta)
{
	int index, data, next;
	uint8 flags = 0;
	POINT *points;

	if (present & 0x0001)
		rdp_in_coord(s, &os->x, delta);

	if (present & 0x0002)
		rdp_in_coord(s, &os->y, delta);

	if (present & 0x0004)
		in_uint8(s, os->opcode);

	if (present & 0x0008)
		in_uint8(s, os->fillmode);

	if (present & 0x0010)
		rdp_in_colour(s, &os->bgcolour);

	if (present & 0x0020)
		rdp_in_colour(s, &os->fgcolour);

	rdp_parse_brush(s, &os->brush, present >> 6);

	if (present & 0x0800)
		in_uint8(s, os->npoints);

	if (present & 0x1000)
	{
		in_uint8(s, os->datasize);
		in_uint8a(s, os->data, os->datasize);
	}

	DEBUG(("POLYGON2(x=%d,y=%d,op=0x%x,fm=%d,bs=%d,bg=0x%x,fg=0x%x,n=%d,sz=%d)\n",
	       os->x, os->y, os->opcode, os->fillmode, os->brush.style, os->bgcolour, os->fgcolour,
	       os->npoints, os->datasize));

	DEBUG(("Data: "));

	for (index = 0; index < os->datasize; index++)
		DEBUG(("%02x ", os->data[index]));

	DEBUG(("\n"));

	if (os->opcode < 0x01 || os->opcode > 0x10)
	{
		error("bad ROP2 0x%x\n", os->opcode);
		return;
	}

	points = (POINT *) malloc((os->npoints + 1) * sizeof(POINT));

	if(points == NULL)
		return;

	memset(points, 0, (os->npoints + 1) * sizeof(POINT));

	points[0].x = os->x;
	points[0].y = os->y;

	index = 0;
	data = ((os->npoints - 1) / 4) + 1;
	for (next = 1; (next <= os->npoints) && (next < 256) && (data < os->datasize); next++)
	{
		if ((next - 1) % 4 == 0)
			flags = os->data[index++];

		if (~flags & 0x80)
			points[next].x = parse_delta(os->data, &data);

		if (~flags & 0x40)
			points[next].y = parse_delta(os->data, &data);

		flags <<= 2;
	}

	if (next - 1 == os->npoints)
#if 0
		ui_polygon(This, os->opcode - 1, os->fillmode, points, os->npoints + 1,
			   &os->brush, os->bgcolour, os->fgcolour);
#else
		ui_polygon(This, os->opcode, os->fillmode, points, os->npoints + 1,
			   &os->brush, os->bgcolour, os->fgcolour);
#endif
	else
		error("polygon2 parse error\n");

	free(points);
}

/* Process a polyline order */
static void
process_polyline(RDPCLIENT * This, STREAM s, POLYLINE_ORDER * os, uint32 present, BOOL delta)
{
	int index, next, data;
	uint8 flags = 0;
	PEN pen;
	POINT *points;

	if (present & 0x01)
		rdp_in_coord(s, &os->x, delta);

	if (present & 0x02)
		rdp_in_coord(s, &os->y, delta);

	if (present & 0x04)
		in_uint8(s, os->opcode);

	if (present & 0x10)
		rdp_in_colour(s, &os->fgcolour);

	if (present & 0x20)
		in_uint8(s, os->lines);

	if (present & 0x40)
	{
		in_uint8(s, os->datasize);
		in_uint8a(s, os->data, os->datasize);
	}

	DEBUG(("POLYLINE(x=%d,y=%d,op=0x%x,fg=0x%x,n=%d,sz=%d)\n",
	       os->x, os->y, os->opcode, os->fgcolour, os->lines, os->datasize));

	DEBUG(("Data: "));

	for (index = 0; index < os->datasize; index++)
		DEBUG(("%02x ", os->data[index]));

	DEBUG(("\n"));

	if (os->opcode < 0x01 || os->opcode > 0x10)
	{
		error("bad ROP2 0x%x\n", os->opcode);
		return;
	}

	points = (POINT *) malloc((os->lines + 1) * sizeof(POINT));

	if(points == NULL)
		return;

	memset(points, 0, (os->lines + 1) * sizeof(POINT));

	points[0].x = os->x;
	points[0].y = os->y;
	pen.style = pen.width = 0;
	pen.colour = os->fgcolour;

	index = 0;
	data = ((os->lines - 1) / 4) + 1;
	for (next = 1; (next <= os->lines) && (data < os->datasize); next++)
	{
		if ((next - 1) % 4 == 0)
			flags = os->data[index++];

		if (~flags & 0x80)
			points[next].x = parse_delta(os->data, &data);

		if (~flags & 0x40)
			points[next].y = parse_delta(os->data, &data);

		flags <<= 2;
	}

	if (next - 1 == os->lines)
#if 0
		ui_polyline(This, os->opcode - 1, points, os->lines + 1, &pen);
#else
		ui_polyline(This, os->opcode, points, os->lines + 1, &pen);
#endif
	else
		error("polyline parse error\n");

	free(points);
}

/* Process an ellipse order */
static void
process_ellipse(RDPCLIENT * This, STREAM s, ELLIPSE_ORDER * os, uint32 present, BOOL delta)
{
	if (present & 0x01)
		rdp_in_coord(s, &os->left, delta);

	if (present & 0x02)
		rdp_in_coord(s, &os->top, delta);

	if (present & 0x04)
		rdp_in_coord(s, &os->right, delta);

	if (present & 0x08)
		rdp_in_coord(s, &os->bottom, delta);

	if (present & 0x10)
		in_uint8(s, os->opcode);

	if (present & 0x20)
		in_uint8(s, os->fillmode);

	if (present & 0x40)
		rdp_in_colour(s, &os->fgcolour);

	DEBUG(("ELLIPSE(l=%d,t=%d,r=%d,b=%d,op=0x%x,fm=%d,fg=0x%x)\n", os->left, os->top,
	       os->right, os->bottom, os->opcode, os->fillmode, os->fgcolour));

#if 0
	ui_ellipse(This, os->opcode - 1, os->fillmode, os->left, os->top, os->right - os->left,
		   os->bottom - os->top, NULL, 0, os->fgcolour);
#else
	ui_ellipse(This, os->opcode, os->fillmode, os->left, os->top, os->right - os->left,
		   os->bottom - os->top, NULL, 0, os->fgcolour);
#endif
}

/* Process an ellipse2 order */
static void
process_ellipse2(RDPCLIENT * This, STREAM s, ELLIPSE2_ORDER * os, uint32 present, BOOL delta)
{
	if (present & 0x0001)
		rdp_in_coord(s, &os->left, delta);

	if (present & 0x0002)
		rdp_in_coord(s, &os->top, delta);

	if (present & 0x0004)
		rdp_in_coord(s, &os->right, delta);

	if (present & 0x0008)
		rdp_in_coord(s, &os->bottom, delta);

	if (present & 0x0010)
		in_uint8(s, os->opcode);

	if (present & 0x0020)
		in_uint8(s, os->fillmode);

	if (present & 0x0040)
		rdp_in_colour(s, &os->bgcolour);

	if (present & 0x0080)
		rdp_in_colour(s, &os->fgcolour);

	rdp_parse_brush(s, &os->brush, present >> 8);

	DEBUG(("ELLIPSE2(l=%d,t=%d,r=%d,b=%d,op=0x%x,fm=%d,bs=%d,bg=0x%x,fg=0x%x)\n",
	       os->left, os->top, os->right, os->bottom, os->opcode, os->fillmode, os->brush.style,
	       os->bgcolour, os->fgcolour));

#if 0
	ui_ellipse(This, os->opcode - 1, os->fillmode, os->left, os->top, os->right - os->left,
		   os->bottom - os->top, &os->brush, os->bgcolour, os->fgcolour);
#else
	ui_ellipse(This, os->opcode, os->fillmode, os->left, os->top, os->right - os->left,
		   os->bottom - os->top, &os->brush, os->bgcolour, os->fgcolour);
#endif
}

/* Process a text order */
static void
process_text2(RDPCLIENT * This, STREAM s, TEXT2_ORDER * os, uint32 present, BOOL delta)
{
	int i;

	if (present & 0x000001)
		in_uint8(s, os->font);

	if (present & 0x000002)
		in_uint8(s, os->flags);

	if (present & 0x000004)
		in_uint8(s, os->opcode);

	if (present & 0x000008)
		in_uint8(s, os->mixmode);

	if (present & 0x000010)
		rdp_in_colour(s, &os->fgcolour);

	if (present & 0x000020)
		rdp_in_colour(s, &os->bgcolour);

	if (present & 0x000040)
		in_uint16_le(s, os->clipleft);

	if (present & 0x000080)
		in_uint16_le(s, os->cliptop);

	if (present & 0x000100)
		in_uint16_le(s, os->clipright);

	if (present & 0x000200)
		in_uint16_le(s, os->clipbottom);

	if (present & 0x000400)
		in_uint16_le(s, os->boxleft);

	if (present & 0x000800)
		in_uint16_le(s, os->boxtop);

	if (present & 0x001000)
		in_uint16_le(s, os->boxright);

	if (present & 0x002000)
		in_uint16_le(s, os->boxbottom);

	rdp_parse_brush(s, &os->brush, present >> 14);

	if (present & 0x080000)
		in_uint16_le(s, os->x);

	if (present & 0x100000)
		in_uint16_le(s, os->y);

	if (present & 0x200000)
	{
		in_uint8(s, os->length);
		in_uint8a(s, os->text, os->length);
	}

	DEBUG(("TEXT2(x=%d,y=%d,cl=%d,ct=%d,cr=%d,cb=%d,bl=%d,bt=%d,br=%d,bb=%d,bs=%d,bg=0x%x,fg=0x%x,font=%d,fl=0x%x,op=0x%x,mix=%d,n=%d)\n", os->x, os->y, os->clipleft, os->cliptop, os->clipright, os->clipbottom, os->boxleft, os->boxtop, os->boxright, os->boxbottom, os->brush.style, os->bgcolour, os->fgcolour, os->font, os->flags, os->opcode, os->mixmode, os->length));

	DEBUG(("Text: "));

	for (i = 0; i < os->length; i++)
		DEBUG(("%02x ", os->text[i]));

	DEBUG(("\n"));

#if 0
	ui_draw_text(This, os->font, os->flags, os->opcode - 1, os->mixmode, os->x, os->y,
		     os->clipleft, os->cliptop, os->clipright - os->clipleft,
		     os->clipbottom - os->cliptop, os->boxleft, os->boxtop,
		     os->boxright - os->boxleft, os->boxbottom - os->boxtop,
		     &os->brush, os->bgcolour, os->fgcolour, os->text, os->length);
#else
	ui_draw_text(This, os->font, os->flags, os->opcode, os->mixmode, os->x, os->y,
		     os->clipleft, os->cliptop, os->clipright - os->clipleft,
		     os->clipbottom - os->cliptop, os->boxleft, os->boxtop,
123

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