WhyCan Forum(哇酷开发者社区)

	case 0xd5d73dfe: /* "camera-set-saturation" */
		if(p)
		{
			f1c200s_tvd_set_saturation(pdat, *p);
			return 0;
		}
		break;
	case 0x0ed48a72: /* "camera-get-saturation" */
		if(p)
		{
			*p = f1c200s_tvd_get_saturation(pdat);
			return 0;
		}
		break;
	case 0xdae4842d: /* "camera-set-brightness" */
		if(p)
		{
			f1c200s_tvd_set_brightness(pdat, *p);
			return 0;
		}
		break;
	case 0x13e1d0a1: /* "camera-get-brightness" */
		if(p)
		{
			*p = f1c200s_tvd_get_brightness(pdat);
			return 0;
		}
		break;
	case 0xf3916322: /* "camera-set-contrast" */
		if(p)
		{
			f1c200s_tvd_set_contrast(pdat, *p);
			return 0;
		}
		break;
	case 0xa8290296: /* "camera-get-contrast" */
		if(p)
		{
			*p = f1c200s_tvd_get_contrast(pdat);
			return 0;
		}
		break;

struct cam_f1c100s_tvd_pdata_t {
	virtual_addr_t virt;
	char * clk;
	int irq;
	int reset;
	int channel;

	//unsigned char yc[720 * 576 * 2];
	unsigned char yc[800 * 600 * 2];
	enum video_format_t fmt;
	int width;
	int height;
	int buflen;
	int ready;
};

...... 
	s = f1c100s_tvd_get_source(pdat);
	if(s == TVD_SOURCE_NTSC)
	{
		pdat->fmt = VIDEO_FORMAT_NV12;
		pdat->width = 720;
		pdat->height = 480;
		pdat->buflen = pdat->width * pdat->height * 2;
		pdat->ready = 0;
		f1c100s_tvd_config(pdat, s, TVD_PL_YUV420);
		f1c100s_tvd_set_fmt(pdat, TVD_PL_YUV420);
		f1c100s_tvd_set_addr(pdat, &pdat->yc[0], &pdat->yc[pdat->width * pdat->height]);
	}
	else if(s == TVD_SOURCE_PAL)
	{
		pdat->fmt = VIDEO_FORMAT_NV12;
		//pdat->width = 720;
		//pdat->height = 576;
		pdat->width = 800;
		pdat->height = 600;
		pdat->buflen = pdat->width * pdat->height * 2;
		pdat->ready = 0;
		f1c100s_tvd_config(pdat, s, TVD_PL_YUV420);
		f1c100s_tvd_set_fmt(pdat, TVD_PL_YUV420);
		f1c100s_tvd_set_addr(pdat, &pdat->yc[0], &pdat->yc[pdat->width * pdat->height]);
	}
	f1c100s_tvd_set_blue(pdat, 2);
	f1c100s_tvd_capture_off(pdat);
	f1c100s_tvd_irq_clear(pdat);
	f1c100s_tvd_irq_disable(pdat);

	switch(opt & (0x3 << 12))
	{
	case XUI_IMAGE_NONE:
		sx = 1.0;
		sy = 1.0;
		break;
	case XUI_IMAGE_CONTAIN:
		sx = (double)r->w / (double)surface_get_width(s);
		sy = (double)r->h / (double)surface_get_height(s);
		if(sx >= sy)
			sx = sy;
		else
			sy = sx;
		break;
	case XUI_IMAGE_COVER:
		sx = (double)r->w / (double)surface_get_width(s);
		sy = (double)r->h / (double)surface_get_height(s);
		if(sx <= sy)
			sx = sy;
		else
			sy = sx;
		break;
	case XUI_IMAGE_FILL:
		sx = (double)r->w / (double)surface_get_width(s);
		sy = (double)r->h / (double)surface_get_height(s);
		break;
	default:
		sx = 1.0;
		sy = 1.0;
		break;
	}
	matrix_init_translate(&m, r->x + r->w / 2, r->y + r->h / 2);
	if(angle != 0.0)
		matrix_rotate(&m, angle);
	matrix_translate(&m, -surface_get_width(s) / 2 * sx, -surface_get_height(s) / 2 * sy);
	matrix_scale(&m, sx, sy);