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📄 xwin.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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		(
			*((uint16 *) out) = This->xwin.colmap[*(data++)];
			out += 2;
		)
		/* *INDENT-ON* */
	}
	else if (This->xwin.xserver_be)
	{
		while (out < end)
		{
			value = (uint16) This->xwin.colmap[*(data++)];
			BOUT16(out, value);
		}
	}
	else
	{
		while (out < end)
		{
			value = (uint16) This->xwin.colmap[*(data++)];
			LOUT16(out, value);
		}
	}
}

/* little endian - conversion happens when colourmap is built */
static void
translate8to24(RDPCLIENT * This, const uint8 * data, uint8 * out, uint8 * end)
{
	uint32 value;

	if (This->xwin.compatible_arch)
	{
		while (out < end)
		{
			value = This->xwin.colmap[*(data++)];
			BOUT24(out, value);
		}
	}
	else
	{
		while (out < end)
		{
			value = This->xwin.colmap[*(data++)];
			LOUT24(out, value);
		}
	}
}

static void
translate8to32(RDPCLIENT * This, const uint8 * data, uint8 * out, uint8 * end)
{
	uint32 value;

	if (This->xwin.compatible_arch)
	{
		/* *INDENT-OFF* */
		REPEAT4
		(
			*((uint32 *) out) = This->xwin.colmap[*(data++)];
			out += 4;
		)
		/* *INDENT-ON* */
	}
	else if (This->xwin.xserver_be)
	{
		while (out < end)
		{
			value = This->xwin.colmap[*(data++)];
			BOUT32(out, value);
		}
	}
	else
	{
		while (out < end)
		{
			value = This->xwin.colmap[*(data++)];
			LOUT32(out, value);
		}
	}
}

static void
translate15to16(RDPCLIENT * This, const uint16 * data, uint8 * out, uint8 * end)
{
	uint16 pixel;
	uint16 value;
	PixelColour pc;

	if (This->xwin.xserver_be)
	{
		while (out < end)
		{
			pixel = *(data++);
			if (This->xwin.host_be)
			{
				BSWAP16(pixel);
			}
			SPLITCOLOUR15(pixel, pc);
			value = MAKECOLOUR(pc);
			BOUT16(out, value);
		}
	}
	else
	{
		while (out < end)
		{
			pixel = *(data++);
			if (This->xwin.host_be)
			{
				BSWAP16(pixel);
			}
			SPLITCOLOUR15(pixel, pc);
			value = MAKECOLOUR(pc);
			LOUT16(out, value);
		}
	}
}

static void
translate15to24(RDPCLIENT * This, const uint16 * data, uint8 * out, uint8 * end)
{
	uint32 value;
	uint16 pixel;
	PixelColour pc;

	if (This->xwin.compatible_arch)
	{
		/* *INDENT-OFF* */
		REPEAT3
		(
			pixel = *(data++);
			SPLITCOLOUR15(pixel, pc);
			*(out++) = pc.blue;
			*(out++) = pc.green;
			*(out++) = pc.red;
		)
		/* *INDENT-ON* */
	}
	else if (This->xwin.xserver_be)
	{
		while (out < end)
		{
			pixel = *(data++);
			if (This->xwin.host_be)
			{
				BSWAP16(pixel);
			}
			SPLITCOLOUR15(pixel, pc);
			value = MAKECOLOUR(pc);
			BOUT24(out, value);
		}
	}
	else
	{
		while (out < end)
		{
			pixel = *(data++);
			if (This->xwin.host_be)
			{
				BSWAP16(pixel);
			}
			SPLITCOLOUR15(pixel, pc);
			value = MAKECOLOUR(pc);
			LOUT24(out, value);
		}
	}
}

static void
translate15to32(RDPCLIENT * This, const uint16 * data, uint8 * out, uint8 * end)
{
	uint16 pixel;
	uint32 value;
	PixelColour pc;

	if (This->xwin.compatible_arch)
	{
		/* *INDENT-OFF* */
		REPEAT4
		(
			pixel = *(data++);
			SPLITCOLOUR15(pixel, pc);
			*(out++) = pc.blue;
			*(out++) = pc.green;
			*(out++) = pc.red;
			*(out++) = 0;
		)
		/* *INDENT-ON* */
	}
	else if (This->xwin.xserver_be)
	{
		while (out < end)
		{
			pixel = *(data++);
			if (This->xwin.host_be)
			{
				BSWAP16(pixel);
			}
			SPLITCOLOUR15(pixel, pc);
			value = MAKECOLOUR(pc);
			BOUT32(out, value);
		}
	}
	else
	{
		while (out < end)
		{
			pixel = *(data++);
			if (This->xwin.host_be)
			{
				BSWAP16(pixel);
			}
			SPLITCOLOUR15(pixel, pc);
			value = MAKECOLOUR(pc);
			LOUT32(out, value);
		}
	}
}

static void
translate16to16(RDPCLIENT * This, const uint16 * data, uint8 * out, uint8 * end)
{
	uint16 pixel;
	uint16 value;
	PixelColour pc;

	if (This->xwin.xserver_be)
	{
		if (This->xwin.host_be)
		{
			while (out < end)
			{
				pixel = *(data++);
				BSWAP16(pixel);
				SPLITCOLOUR16(pixel, pc);
				value = MAKECOLOUR(pc);
				BOUT16(out, value);
			}
		}
		else
		{
			while (out < end)
			{
				pixel = *(data++);
				SPLITCOLOUR16(pixel, pc);
				value = MAKECOLOUR(pc);
				BOUT16(out, value);
			}
		}
	}
	else
	{
		if (This->xwin.host_be)
		{
			while (out < end)
			{
				pixel = *(data++);
				BSWAP16(pixel);
				SPLITCOLOUR16(pixel, pc);
				value = MAKECOLOUR(pc);
				LOUT16(out, value);
			}
		}
		else
		{
			while (out < end)
			{
				pixel = *(data++);
				SPLITCOLOUR16(pixel, pc);
				value = MAKECOLOUR(pc);
				LOUT16(out, value);
			}
		}
	}
}

static void
translate16to24(RDPCLIENT * This, const uint16 * data, uint8 * out, uint8 * end)
{
	uint32 value;
	uint16 pixel;
	PixelColour pc;

	if (This->xwin.compatible_arch)
	{
		/* *INDENT-OFF* */
		REPEAT3
		(
			pixel = *(data++);
			SPLITCOLOUR16(pixel, pc);
			*(out++) = pc.blue;
			*(out++) = pc.green;
			*(out++) = pc.red;
		)
		/* *INDENT-ON* */
	}
	else if (This->xwin.xserver_be)
	{
		if (This->xwin.host_be)
		{
			while (out < end)
			{
				pixel = *(data++);
				BSWAP16(pixel);
				SPLITCOLOUR16(pixel, pc);
				value = MAKECOLOUR(pc);
				BOUT24(out, value);
			}
		}
		else
		{
			while (out < end)
			{
				pixel = *(data++);
				SPLITCOLOUR16(pixel, pc);
				value = MAKECOLOUR(pc);
				BOUT24(out, value);
			}
		}
	}
	else
	{
		if (This->xwin.host_be)
		{
			while (out < end)
			{
				pixel = *(data++);
				BSWAP16(pixel);
				SPLITCOLOUR16(pixel, pc);
				value = MAKECOLOUR(pc);
				LOUT24(out, value);
			}
		}
		else
		{
			while (out < end)
			{
				pixel = *(data++);
				SPLITCOLOUR16(pixel, pc);
				value = MAKECOLOUR(pc);
				LOUT24(out, value);
			}
		}
	}
}

static void
translate16to32(RDPCLIENT * This, const uint16 * data, uint8 * out, uint8 * end)
{
	uint16 pixel;
	uint32 value;
	PixelColour pc;

	if (This->xwin.compatible_arch)
	{
		/* *INDENT-OFF* */
		REPEAT4
		(
			pixel = *(data++);
			SPLITCOLOUR16(pixel, pc);
			*(out++) = pc.blue;
			*(out++) = pc.green;
			*(out++) = pc.red;
			*(out++) = 0;
		)
		/* *INDENT-ON* */
	}
	else if (This->xwin.xserver_be)
	{
		if (This->xwin.host_be)
		{
			while (out < end)
			{
				pixel = *(data++);
				BSWAP16(pixel);
				SPLITCOLOUR16(pixel, pc);
				value = MAKECOLOUR(pc);
				BOUT32(out, value);
			}
		}
		else
		{
			while (out < end)
			{
				pixel = *(data++);
				SPLITCOLOUR16(pixel, pc);
				value = MAKECOLOUR(pc);
				BOUT32(out, value);
			}
		}
	}
	else
	{
		if (This->xwin.host_be)
		{
			while (out < end)
			{
				pixel = *(data++);
				BSWAP16(pixel);
				SPLITCOLOUR16(pixel, pc);
				value = MAKECOLOUR(pc);
				LOUT32(out, value);
			}
		}
		else
		{
			while (out < end)
			{
				pixel = *(data++);
				SPLITCOLOUR16(pixel, pc);
				value = MAKECOLOUR(pc);
				LOUT32(out, value);
			}
		}
	}
}

static void
translate24to16(RDPCLIENT * This, const uint8 * data, uint8 * out, uint8 * end)
{
	uint32 pixel = 0;
	uint16 value;
	PixelColour pc;

	while (out < end)
	{
		pixel = *(data++) << 16;
		pixel |= *(data++) << 8;
		pixel |= *(data++);
		SPLITCOLOUR24(pixel, pc);
		value = MAKECOLOUR(pc);
		if (This->xwin.xserver_be)
		{
			BOUT16(out, value);
		}
		else
		{
			LOUT16(out, value);
		}
	}
}

static void
translate24to24(RDPCLIENT * This, const uint8 * data, uint8 * out, uint8 * end)
{
	uint32 pixel;
	uint32 value;
	PixelColour pc;

	if (This->xwin.xserver_be)
	{
		while (out < end)
		{
			pixel = *(data++) << 16;
			pixel |= *(data++) << 8;
			pixel |= *(data++);
			SPLITCOLOUR24(pixel, pc);
			value = MAKECOLOUR(pc);
			BOUT24(out, value);
		}
	}
	else
	{
		while (out < end)
		{
			pixel = *(data++) << 16;
			pixel |= *(data++) << 8;
			pixel |= *(data++);
			SPLITCOLOUR24(pixel, pc);
			value = MAKECOLOUR(pc);
			LOUT24(out, value);
		}
	}
}

static void
translate24to32(RDPCLIENT * This, const uint8 * data, uint8 * out, uint8 * end)
{
	uint32 pixel;
	uint32 value;
	PixelColour pc;

	if (This->xwin.compatible_arch)
	{
		/* *INDENT-OFF* */
#ifdef NEED_ALIGN
		REPEAT4
		(
			*(out++) = *(data++);
			*(out++) = *(data++);
			*(out++) = *(data++);
			*(out++) = 0;
		)
#else
		REPEAT4
		(
		 /* Only read 3 bytes. Reading 4 bytes means reading beyond buffer. */
		 *((uint32 *) out) = *((uint16 *) data) + (*((uint8 *) data + 2) << 16);
		 out += 4;
		 data += 3;
		)
#endif
		/* *INDENT-ON* */
	}
	else if (This->xwin.xserver_be)
	{
		while (out < end)
		{
			pixel = *(data++) << 16;
			pixel |= *(data++) << 8;
			pixel |= *(data++);
			SPLITCOLOUR24(pixel, pc);
			value = MAKECOLOUR(pc);
			BOUT32(out, value);
		}
	}
	else
	{
		while (out < end)
12345

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