sis_accel.c

优龙2410linux2.6.8内核源代码

   u32 col = 0;
   u32 vxres = info->var.xres_virtual;
   u32 vyres = info->var.yres_virtual;
   int width, height;
   CRITFLAGS

   if(info->state != FBINFO_STATE_RUNNING) {
	return;
   }

   if(!ivideo->accel) {
	cfb_fillrect(info, rect);
	return;
   }
   
   if(!rect->width || !rect->height || rect->dx >= vxres || rect->dy >= vyres) {
	return;
   }

   /* Clipping */
   width = ((rect->dx + rect->width) > vxres) ? (vxres - rect->dx) : rect->width;
   height = ((rect->dy + rect->height) > vyres) ? (vyres - rect->dy) : rect->height;

   switch(info->var.bits_per_pixel) {
	case 8:  col = rect->color;
		 break;
	case 16:
	case 32: col = ((u32 *)(info->pseudo_palette))[rect->color];
		 break;
   }

   if(ivideo->sisvga_engine == SIS_300_VGA) {
#ifdef CONFIG_FB_SIS_300
      CRITBEGIN
      SiS300SetupForSolidFill(ivideo, col, myrops[rect->rop]);
      SiS300SubsequentSolidFillRect(ivideo, rect->dx, rect->dy, width, height);
      CRITEND
      SiS300Sync(ivideo);
#endif
   } else {
#ifdef CONFIG_FB_SIS_315
      CRITBEGIN
      SiS310SetupForSolidFill(ivideo, col, myrops[rect->rop]);
      SiS310SubsequentSolidFillRect(ivideo, rect->dx, rect->dy, width, height);
      CRITEND
      SiS310Sync(ivideo);
#endif
   }

}

void fbcon_sis_copyarea(struct fb_info *info, const struct fb_copyarea *area)
{
   struct sis_video_info *ivideo = (struct sis_video_info *)info->par;
   u32 vxres = info->var.xres_virtual;
   u32 vyres = info->var.yres_virtual;
   int width = area->width;
   int height = area->height;
   CRITFLAGS

   if(info->state != FBINFO_STATE_RUNNING) {
	return;
   }

   if(!ivideo->accel) {
   	cfb_copyarea(info, area);
	return;
   }

   if(!width || !height ||
      area->sx >= vxres || area->sy >= vyres ||
      area->dx >= vxres || area->dy >= vyres) {
   	return;
   }

   /* Clipping */
   if((area->sx + width) > vxres) width = vxres - area->sx;
   if((area->dx + width) > vxres) width = vxres - area->dx;
   if((area->sy + height) > vyres) height = vyres - area->sy;
   if((area->dy + height) > vyres) height = vyres - area->dy;

   if(ivideo->sisvga_engine == SIS_300_VGA) {
#ifdef CONFIG_FB_SIS_300
      int xdir, ydir;

      if(area->sx < area->dx) xdir = 0;
      else                    xdir = 1;
      if(area->sy < area->dy) ydir = 0;
      else                    ydir = 1;

      CRITBEGIN
      SiS300SetupForScreenToScreenCopy(ivideo, xdir, ydir, 3, -1);
      SiS300SubsequentScreenToScreenCopy(ivideo, area->sx, area->sy, area->dx, area->dy,
      					 width, height);
      CRITEND
      SiS300Sync(ivideo);
#endif
   } else {
#ifdef CONFIG_FB_SIS_315
      CRITBEGIN
      SiS310SetupForScreenToScreenCopy(ivideo, 3, -1);
      SiS310SubsequentScreenToScreenCopy(ivideo, area->sx, area->sy, area->dx, area->dy,
      					 width, height);
      CRITEND
      SiS310Sync(ivideo);
#endif
   }
}

#endif

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)  /* -------------- 2.4 --------------- */

void fbcon_sis_bmove(struct display *p, int srcy, int srcx,
			    int dsty, int dstx, int height, int width)
{
	struct sis_video_info *ivideo = (struct sis_video_info *)p->fb_info->par;

	CRITFLAGS

	if(!ivideo->accel) {
	    switch(ivideo->video_bpp) {
	    case 8:
#ifdef FBCON_HAS_CFB8
	       fbcon_cfb8_bmove(p, srcy, srcx, dsty, dstx, height, width);
#endif
	       break;
	    case 16:
#ifdef FBCON_HAS_CFB16
	       fbcon_cfb16_bmove(p, srcy, srcx, dsty, dstx, height, width);
#endif
	       break;
	    case 32:
#ifdef FBCON_HAS_CFB32
	       fbcon_cfb32_bmove(p, srcy, srcx, dsty, dstx, height, width);
#endif
	       break;
            }
	    return;
	}

	srcx *= fontwidth(p);
	srcy *= fontheight(p);
	dstx *= fontwidth(p);
	dsty *= fontheight(p);
	width *= fontwidth(p);
	height *= fontheight(p);

	if(ivideo->sisvga_engine == SIS_300_VGA) {
#ifdef CONFIG_FB_SIS_300
	   int xdir, ydir;

	   if(srcx < dstx) xdir = 0;
	   else            xdir = 1;
	   if(srcy < dsty) ydir = 0;
	   else            ydir = 1;

	   CRITBEGIN
	   SiS300SetupForScreenToScreenCopy(ivideo, xdir, ydir, 3, -1);
	   SiS300SubsequentScreenToScreenCopy(ivideo, srcx, srcy, dstx, dsty, width, height);
	   CRITEND
	   SiS300Sync(ivideo);
#endif
	} else {
#ifdef CONFIG_FB_SIS_315
	   CRITBEGIN
	   SiS310SetupForScreenToScreenCopy(ivideo, 3, -1);
	   SiS310SubsequentScreenToScreenCopy(ivideo, srcx, srcy, dstx, dsty, width, height);
	   CRITEND
	   SiS310Sync(ivideo);
#endif
	}
}

static void fbcon_sis_clear(struct vc_data *conp, struct display *p,
			int srcy, int srcx, int height, int width, int color)
{
        struct sis_video_info *ivideo = (struct sis_video_info *)p->fb_info->par;
	CRITFLAGS

	srcx *= fontwidth(p);
	srcy *= fontheight(p);
	width *= fontwidth(p);
	height *= fontheight(p);

	if(ivideo->sisvga_engine == SIS_300_VGA) {
#ifdef CONFIG_FB_SIS_300
	   CRITBEGIN
	   SiS300SetupForSolidFill(ivideo, color, 3);
	   SiS300SubsequentSolidFillRect(ivideo, srcx, srcy, width, height);
	   CRITEND
	   SiS300Sync(ivideo);
#endif
	} else {
#ifdef CONFIG_FB_SIS_315
	   CRITBEGIN
	   SiS310SetupForSolidFill(ivideo, color, 3);
	   SiS310SubsequentSolidFillRect(ivideo, srcx, srcy, width, height);
	   CRITEND
	   SiS310Sync(ivideo);
#endif
	}
}

void fbcon_sis_clear8(struct vc_data *conp, struct display *p,
			int srcy, int srcx, int height, int width)
{
	struct sis_video_info *ivideo = (struct sis_video_info *)p->fb_info->par;
	u32 bgx;

	if(!ivideo->accel) {
#ifdef FBCON_HAS_CFB8
	    fbcon_cfb8_clear(conp, p, srcy, srcx, height, width);
#endif
	    return;
	}

	bgx = attr_bgcol_ec(p, conp);
	fbcon_sis_clear(conp, p, srcy, srcx, height, width, bgx);
}

void fbcon_sis_clear16(struct vc_data *conp, struct display *p,
			int srcy, int srcx, int height, int width)
{
        struct sis_video_info *ivideo = (struct sis_video_info *)p->fb_info->par;
	u32 bgx;

	if(!ivideo->accel) {
#ifdef FBCON_HAS_CFB16
	    fbcon_cfb16_clear(conp, p, srcy, srcx, height, width);
#endif
	    return;
	}

	bgx = ((u_int16_t*)p->dispsw_data)[attr_bgcol_ec(p, conp)];
	fbcon_sis_clear(conp, p, srcy, srcx, height, width, bgx);
}

void fbcon_sis_clear32(struct vc_data *conp, struct display *p,
			int srcy, int srcx, int height, int width)
{
	struct sis_video_info *ivideo = (struct sis_video_info *)p->fb_info->par;
	u32 bgx;

	if(!ivideo->accel) {
#ifdef FBCON_HAS_CFB32
	    fbcon_cfb32_clear(conp, p, srcy, srcx, height, width);
#endif
	    return;
	}

	bgx = ((u_int32_t*)p->dispsw_data)[attr_bgcol_ec(p, conp)];
	fbcon_sis_clear(conp, p, srcy, srcx, height, width, bgx);
}

void fbcon_sis_revc(struct display *p, int srcx, int srcy)
{
	struct sis_video_info *ivideo = (struct sis_video_info *)p->fb_info->par;
	CRITFLAGS

	if(!ivideo->accel) {
	    switch(ivideo->video_bpp) {
	    case 16:
#ifdef FBCON_HAS_CFB16
	       fbcon_cfb16_revc(p, srcx, srcy);
#endif
	       break;
	    case 32:
#ifdef FBCON_HAS_CFB32
	       fbcon_cfb32_revc(p, srcx, srcy);
#endif
	       break;
            }
	    return;
	}

	srcx *= fontwidth(p);
	srcy *= fontheight(p);

	if(ivideo->sisvga_engine == SIS_300_VGA) {
#ifdef CONFIG_FB_SIS_300
	   CRITBEGIN
	   SiS300SetupForSolidFill(ivideo, 0, 0x0a);
	   SiS300SubsequentSolidFillRect(ivideo, srcx, srcy, fontwidth(p), fontheight(p));
	   CRITEND
	   SiS300Sync(ivideo);
#endif
	} else {
#ifdef CONFIG_FB_SIS_315
	   CRITBEGIN
	   SiS310SetupForSolidFill(ivideo, 0, 0x0a);
	   SiS310SubsequentSolidFillRect(ivideo, srcx, srcy, fontwidth(p), fontheight(p));
	   CRITEND
	   SiS310Sync(ivideo);
#endif
	}
}

#ifdef FBCON_HAS_CFB8
struct display_switch fbcon_sis8 = {
	.setup		= fbcon_cfb8_setup,
	.bmove		= fbcon_sis_bmove,
	.clear		= fbcon_sis_clear8,
	.putc		= fbcon_cfb8_putc,
	.putcs		= fbcon_cfb8_putcs,
	.revc		= fbcon_cfb8_revc,
	.clear_margins	= fbcon_cfb8_clear_margins,
	.fontwidthmask	= FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16)
};
#endif
#ifdef FBCON_HAS_CFB16
struct display_switch fbcon_sis16 = {
	.setup		= fbcon_cfb16_setup,
	.bmove		= fbcon_sis_bmove,
	.clear		= fbcon_sis_clear16,
	.putc		= fbcon_cfb16_putc,
	.putcs		= fbcon_cfb16_putcs,
	.revc		= fbcon_sis_revc,
	.clear_margins	= fbcon_cfb16_clear_margins,
	.fontwidthmask	= FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16)
};
#endif
#ifdef FBCON_HAS_CFB32
struct display_switch fbcon_sis32 = {
	.setup		= fbcon_cfb32_setup,
	.bmove		= fbcon_sis_bmove,
	.clear		= fbcon_sis_clear32,
	.putc		= fbcon_cfb32_putc,
	.putcs		= fbcon_cfb32_putcs,
	.revc		= fbcon_sis_revc,
	.clear_margins	= fbcon_cfb32_clear_margins,
	.fontwidthmask	= FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16)
};
#endif

#endif /* KERNEL VERSION */