i830_accel.c

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   pI830->BR[16] = color;

   switch (pScrn->bitsPerPixel) {
   case 8:
      break;
   case 16:
      pI830->BR[13] |= (1 << 24);
      break;
   case 32:
      pI830->BR[13] |= ((1 << 25) | (1 << 24));
      break;
   }
}

void
I830SubsequentSolidFillRect(ScrnInfoPtr pScrn, int x, int y, int w, int h)
{
   I830Ptr pI830 = I830PTR(pScrn);

   if (I810_DEBUG & DEBUG_VERBOSE_ACCEL)
      ErrorF("I830SubsequentFillRectSolid %d,%d %dx%d\n", x, y, w, h);

   {
      BEGIN_LP_RING(6);

      if (pScrn->bitsPerPixel == 32) {
	 OUT_RING(COLOR_BLT_CMD | COLOR_BLT_WRITE_ALPHA |
		  COLOR_BLT_WRITE_RGB);
      } else {
	 OUT_RING(COLOR_BLT_CMD);
      }
      OUT_RING(pI830->BR[13]);
      OUT_RING((h << 16) | (w * pI830->cpp));
      OUT_RING(pI830->bufferOffset + (y * pScrn->displayWidth + x) *
	       pI830->cpp);
      OUT_RING(pI830->BR[16]);
      OUT_RING(0);

      ADVANCE_LP_RING();
   }
}

void
I830SetupForScreenToScreenCopy(ScrnInfoPtr pScrn, int xdir, int ydir, int rop,
			       unsigned int planemask, int transparency_color)
{
   I830Ptr pI830 = I830PTR(pScrn);

   if (I810_DEBUG & DEBUG_VERBOSE_ACCEL)
      ErrorF("I830SetupForScreenToScreenCopy %d %d %x %x %d\n",
	     xdir, ydir, rop, planemask, transparency_color);

   pI830->BR[13] = (pScrn->displayWidth * pI830->cpp);
   pI830->BR[13] |= XAAGetCopyROP(rop) << 16;

   switch (pScrn->bitsPerPixel) {
   case 8:
      break;
   case 16:
      pI830->BR[13] |= (1 << 24);
      break;
   case 32:
      pI830->BR[13] |= ((1 << 25) | (1 << 24));
      break;
   }

}

void
I830SubsequentScreenToScreenCopy(ScrnInfoPtr pScrn, int src_x1, int src_y1,
				 int dst_x1, int dst_y1, int w, int h)
{
   I830Ptr pI830 = I830PTR(pScrn);
   int dst_x2, dst_y2;

   if (I810_DEBUG & DEBUG_VERBOSE_ACCEL)
      ErrorF("I830SubsequentScreenToScreenCopy %d,%d - %d,%d %dx%d\n",
	     src_x1, src_y1, dst_x1, dst_y1, w, h);

   dst_x2 = dst_x1 + w;
   dst_y2 = dst_y1 + h;

   {
      BEGIN_LP_RING(8);

      if (pScrn->bitsPerPixel == 32) {
	 OUT_RING(XY_SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA |
		  XY_SRC_COPY_BLT_WRITE_RGB);
      } else {
	 OUT_RING(XY_SRC_COPY_BLT_CMD);
      }
      OUT_RING(pI830->BR[13]);
      OUT_RING((dst_y1 << 16) | (dst_x1 & 0xffff));
      OUT_RING((dst_y2 << 16) | (dst_x2 & 0xffff));
      OUT_RING(pI830->bufferOffset);
      OUT_RING((src_y1 << 16) | (src_x1 & 0xffff));
      OUT_RING(pI830->BR[13] & 0xFFFF);
      OUT_RING(pI830->bufferOffset);

      ADVANCE_LP_RING();
   }
}

static void
I830SetupForMono8x8PatternFill(ScrnInfoPtr pScrn, int pattx, int patty,
			       int fg, int bg, int rop,
			       unsigned int planemask)
{
   I830Ptr pI830 = I830PTR(pScrn);

   if (I810_DEBUG & DEBUG_VERBOSE_ACCEL)
      ErrorF("I830SetupForMono8x8PatternFill\n");

   pI830->BR[16] = pattx;
   pI830->BR[17] = patty;
   pI830->BR[18] = bg;
   pI830->BR[19] = fg;

   pI830->BR[13] = (pScrn->displayWidth * pI830->cpp);	/* In bytes */
   pI830->BR[13] |= XAAGetPatternROP(rop) << 16;
   if (bg == -1)
      pI830->BR[13] |= (1 << 28);

   switch (pScrn->bitsPerPixel) {
   case 8:
      break;
   case 16:
      pI830->BR[13] |= (1 << 24);
      break;
   case 32:
      pI830->BR[13] |= ((1 << 25) | (1 << 24));
      break;
   }

}

static void
I830SubsequentMono8x8PatternFillRect(ScrnInfoPtr pScrn, int pattx, int patty,
				     int x, int y, int w, int h)
{
   I830Ptr pI830 = I830PTR(pScrn);
   int x1, x2, y1, y2;

   x1 = x;
   x2 = x + w;
   y1 = y;
   y2 = y + h;

   if (I810_DEBUG & DEBUG_VERBOSE_ACCEL)
      ErrorF("I830SubsequentMono8x8PatternFillRect\n");

   {
      BEGIN_LP_RING(10);

      if (pScrn->bitsPerPixel == 32) {
	 OUT_RING(XY_MONO_PAT_BLT_CMD | XY_MONO_PAT_BLT_WRITE_ALPHA |
		  XY_MONO_PAT_BLT_WRITE_RGB |
		  ((patty << 8) & XY_MONO_PAT_VERT_SEED) |
		  ((pattx << 12) & XY_MONO_PAT_HORT_SEED));
      } else {
	 OUT_RING(XY_MONO_PAT_BLT_CMD |
		  ((patty << 8) & XY_MONO_PAT_VERT_SEED) |
		  ((pattx << 12) & XY_MONO_PAT_HORT_SEED));
      }
      OUT_RING(pI830->BR[13]);
      OUT_RING((y1 << 16) | x1);
      OUT_RING((y2 << 16) | x2);
      OUT_RING(pI830->bufferOffset);
      OUT_RING(pI830->BR[18]);		/* bg */
      OUT_RING(pI830->BR[19]);		/* fg */
      OUT_RING(pI830->BR[16]);		/* pattern data */
      OUT_RING(pI830->BR[17]);
      OUT_RING(0);
      ADVANCE_LP_RING();
   }
}

static void
I830GetNextScanlineColorExpandBuffer(ScrnInfoPtr pScrn)
{
   I830Ptr pI830 = I830PTR(pScrn);
   XAAInfoRecPtr infoPtr = pI830->AccelInfoRec;

   if (pI830->nextColorExpandBuf == pI830->NumScanlineColorExpandBuffers)
      I830Sync(pScrn);

   infoPtr->ScanlineColorExpandBuffers[0] =
	 pI830->ScanlineColorExpandBuffers[pI830->nextColorExpandBuf];

   if (I810_DEBUG & DEBUG_VERBOSE_ACCEL)
      ErrorF("using color expand buffer %d\n", pI830->nextColorExpandBuf);

   pI830->nextColorExpandBuf++;
}

static void
I830SetupForScanlineCPUToScreenColorExpandFill(ScrnInfoPtr pScrn,
					       int fg, int bg, int rop,
					       unsigned int planemask)
{
   I830Ptr pI830 = I830PTR(pScrn);

   if (I810_DEBUG & DEBUG_VERBOSE_ACCEL)
      ErrorF("I830SetupForScanlineScreenToScreenColorExpand %d %d %x %x\n",
	     fg, bg, rop, planemask);

   /* Fill out register values */
   pI830->BR[13] = (pScrn->displayWidth * pI830->cpp);
   pI830->BR[13] |= XAAGetCopyROP(rop) << 16;
   if (bg == -1)
      pI830->BR[13] |= (1 << 29);

   switch (pScrn->bitsPerPixel) {
   case 8:
      break;
   case 16:
      pI830->BR[13] |= (1 << 24);
      break;
   case 32:
      pI830->BR[13] |= ((1 << 25) | (1 << 24));
      break;
   }

   pI830->BR[18] = bg;
   pI830->BR[19] = fg;

   I830GetNextScanlineColorExpandBuffer(pScrn);
}

static void
I830SubsequentScanlineCPUToScreenColorExpandFill(ScrnInfoPtr pScrn,
						 int x, int y,
						 int w, int h, int skipleft)
{
   I830Ptr pI830 = I830PTR(pScrn);

   if (I810_DEBUG & DEBUG_VERBOSE_ACCEL)
      ErrorF("I830SubsequentScanlineCPUToScreenColorExpandFill "
	     "%d,%d %dx%x %d\n", x, y, w, h, skipleft);

   /* Fill out register values */
   pI830->BR[9] = (pI830->bufferOffset +
		   (y * pScrn->displayWidth + x) * pI830->cpp);
   pI830->BR[11] = ((1 << 16) | w);
}

static void
I830SubsequentColorExpandScanline(ScrnInfoPtr pScrn, int bufno)
{
   I830Ptr pI830 = I830PTR(pScrn);

   if (pI830->init == 0) {
      pI830->BR[12] = (pI830->AccelInfoRec->ScanlineColorExpandBuffers[0] -
		       pI830->FbBase);
   } else {
      I830Ptr pI8301 = I830PTR(pI830->entityPrivate->pScrn_1);

      /* We have to use the primary screen's FbBase, as that's where
       * we allocated Scratch2, so we get the correct pointer */
      pI830->BR[12] = (pI830->AccelInfoRec->ScanlineColorExpandBuffers[0] -
		       pI8301->FbBase);
   }

   if (I810_DEBUG & DEBUG_VERBOSE_ACCEL)
      ErrorF("I830SubsequentColorExpandScanline %d (addr %x)\n",
	     bufno, pI830->BR[12]);

   {
      BEGIN_LP_RING(8);

      if (pScrn->bitsPerPixel == 32) {
	 OUT_RING(XY_MONO_SRC_BLT_CMD | XY_MONO_SRC_BLT_WRITE_ALPHA |
		  XY_MONO_SRC_BLT_WRITE_RGB);
      } else {
	 OUT_RING(XY_MONO_SRC_BLT_CMD);
      }
      OUT_RING(pI830->BR[13]);
      OUT_RING(0);			/* x1 = 0, y1 = 0 */
      OUT_RING(pI830->BR[11]);		/* x2 = w, y2 = 1 */
      OUT_RING(pI830->BR[9]);		/* dst addr */
      OUT_RING(pI830->BR[12]);		/* src addr */
      OUT_RING(pI830->BR[18]);		/* bg */
      OUT_RING(pI830->BR[19]);		/* fg */

      ADVANCE_LP_RING();
   }

   /* Advance to next scanline.
    */
   pI830->BR[9] += pScrn->displayWidth * pI830->cpp;
   I830GetNextScanlineColorExpandBuffer(pScrn);
}

#if DO_SCANLINE_IMAGE_WRITE
static void
I830SetupForScanlineImageWrite(ScrnInfoPtr pScrn, int rop,
			       unsigned int planemask, int trans_color,
			       int bpp, int depth)
{
   I830Ptr pI830 = I830PTR(pScrn);

   if (I810_DEBUG & DEBUG_VERBOSE_ACCEL)
      ErrorF("I830SetupForScanlineImageWrite %x %x\n", rop, planemask);

   /* Fill out register values */
   pI830->BR[13] = (pScrn->displayWidth * pI830->cpp);
   pI830->BR[13] |= XAAGetCopyROP(rop) << 16;

   switch (pScrn->bitsPerPixel) {
   case 8:
      break;
   case 16:
      pI830->BR[13] |= (1 << 24);
      break;
   case 32:
      pI830->BR[13] |= ((1 << 25) | (1 << 24));
      break;
   }

   I830GetNextScanlineColorExpandBuffer(pScrn);
}

static void
I830SubsequentScanlineImageWriteRect(ScrnInfoPtr pScrn, int x, int y,
				     int w, int h, int skipleft)
{
   I830Ptr pI830 = I830PTR(pScrn);

   if (I810_DEBUG & DEBUG_VERBOSE_ACCEL)
      ErrorF("I830SubsequentScanlineImageWriteRect "
	     "%d,%d %dx%x %d\n", x, y, w, h, skipleft);

   /* Fill out register values */
   pI830->BR[9] = (pI830->bufferOffset +
		   (y * pScrn->displayWidth + x) * pI830->cpp);
   pI830->BR[11] = ((1 << 16) | w);
}

static void
I830SubsequentImageWriteScanline(ScrnInfoPtr pScrn, int bufno)
{
   I830Ptr pI830 = I830PTR(pScrn);

   if (pI830->init == 0) {
      pI830->BR[12] = (pI830->AccelInfoRec->ScanlineColorExpandBuffers[0] -
		       pI830->FbBase);
   } else {
      I830Ptr pI8301 = I830PTR(pI830->entityPrivate->pScrn_1);

      /* We have to use the primary screen's FbBase, as that's where
       * we allocated Scratch2, so we get the correct pointer */
      pI830->BR[12] = (pI830->AccelInfoRec->ScanlineColorExpandBuffers[0] -
		       pI8301->FbBase);
   }

   if (I810_DEBUG & DEBUG_VERBOSE_ACCEL)
      ErrorF("I830SubsequentImageWriteScanline %d (addr %x)\n",
	     bufno, pI830->BR[12]);

   {
      BEGIN_LP_RING(8);

      if (pScrn->bitsPerPixel == 32) {
	 OUT_RING(XY_SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA |
		  XY_SRC_COPY_BLT_WRITE_RGB);
      } else {
	 OUT_RING(XY_SRC_COPY_BLT_CMD);
      }
      OUT_RING(pI830->BR[13]);
      OUT_RING(0);			/* x1 = 0, y1 = 0 */
      OUT_RING(pI830->BR[11]);		/* x2 = w, y2 = 1 */
      OUT_RING(pI830->BR[9]);		/* dst addr */
      OUT_RING(0);			/* source origin (0,0) */
      OUT_RING(pI830->BR[11] & 0xffff);	/* source pitch */
      OUT_RING(pI830->BR[12]);		/* src addr */

      ADVANCE_LP_RING();
   }

   /* Advance to next scanline.
    */
   pI830->BR[9] += pScrn->displayWidth * pI830->cpp;
   I830GetNextScanlineColorExpandBuffer(pScrn);
}
#endif

/* Support for multiscreen */
static void
I830RestoreAccelState(ScrnInfoPtr pScrn)
{
#if 0
   /* might be needed, but everything is on a ring, so I don't think so */
   I830Sync(pScrn);
#endif
}