From fe4114033f2853e2df8d37c490deba26bf0366e8 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alex@botch2.com>
Date: Thu, 15 Mar 2007 02:11:24 -0400
Subject: hostdata blit UTS works, but SW is faster

UTS is working, but SW is faster so leave it disabled
---
 src/smi_exa.c | 67 +++++++++++++++++++++++++++++------------------------------
 1 file changed, 33 insertions(+), 34 deletions(-)

diff --git a/src/smi_exa.c b/src/smi_exa.c
index da3e36b..2c902be 100644
--- a/src/smi_exa.c
+++ b/src/smi_exa.c
@@ -96,6 +96,14 @@ SMI_EXAInit(ScreenPtr pScreen)
     pSmi->EXADriverPtr->maxX = 4096;
     pSmi->EXADriverPtr->maxY = 4096;
 
+    if (pScrn->bitsPerPixel == 24) {
+	pSmi->EXADriverPtr->maxX = 4096 / 3;
+
+	if (pSmi->Chipset == SMI_LYNX) {
+	    pSmi->EXADriverPtr->maxY = 4096 / 3;
+	}
+    }
+
     pSmi->EXADriverPtr->pixmapPitchAlign  = 16;
     pSmi->EXADriverPtr->pixmapOffsetAlign = 8;
 
@@ -112,8 +120,8 @@ SMI_EXAInit(ScreenPtr pScreen)
     pSmi->EXADriverPtr->Solid = SMI_Solid;
     pSmi->EXADriverPtr->DoneSolid = SMI_DoneSolid;
 
-    /* DFS & UTS */
 #if 0
+    /* DFS & UTS */
     pSmi->EXADriverPtr->UploadToScreen = SMI_UploadToScreen;
     pSmi->EXADriverPtr->DownloadFromScreen = SMI_DownloadFromScreen;
 #endif
@@ -460,30 +468,37 @@ SMI_UploadToScreen(PixmapPtr pDst, int x, int y, int w, int h,
 {
     ScrnInfoPtr pScrn = xf86Screens[pDst->drawable.pScreen->myNum];
     SMIPtr pSmi = SMIPTR(pScrn);
-    int i, j, dwords, Bpp, queue, dst_pitch;
-    CARD32 *srcp, *dataport;
+    int dst_pitch, source_pitch, align, aligned_pitch;
     unsigned long dst_offset;
 
     ENTER_PROC("SMI_UploadToScreen");
     DEBUG((VERBLEV, "x=%d y=%d w=%d h=%d src=%d src_pitch=%d\n",
 	   x, y, w, h, src, src_pitch));
 
+    if (pDst->drawable.bitsPerPixel == 24) {
+	align = 16;
+    } else {
+	align = 128 / pDst->drawable.bitsPerPixel;
+    }
+
+    aligned_pitch = (src_pitch + align - 1) & ~(align - 1);
+
     /* calculate pitch in pixel unit */
     dst_pitch  = exaGetPixmapPitch(pDst) / (pDst->drawable.bitsPerPixel >> 3);
+    source_pitch = aligned_pitch / (pDst->drawable.bitsPerPixel >> 3);
     /* calculate offset in 8 byte (64 bit) unit */
     dst_offset = exaGetPixmapOffset(pDst) >> 3;
 
-    Bpp = pDst->drawable.bitsPerPixel / 8;
-    dwords = (((w * Bpp) + 3) >> 2) * h;
-
     pSmi->AccelCmd = 0xCC /* GXcopy */
 		   | SMI_HOSTBLT_WRITE
 		   | SMI_QUICK_START;
 
+    /* set clipping */
+    SMI_SetClippingRectangle(pScrn, x, y, x+w, y+h);
 
-    WaitQueue(1);
-    /* Destination Window Width */
-    WRITE_DPR(pSmi, 0x3C, (dst_pitch << 16));
+    WaitQueue(7);
+    /* Destination and Source Window Widths */
+    WRITE_DPR(pSmi, 0x3C, (dst_pitch << 16) | (source_pitch & 0xFFFF));
 
     if (pDst->drawable.bitsPerPixel == 24) {
 	x *= 3;
@@ -494,43 +509,27 @@ SMI_UploadToScreen(PixmapPtr pDst, int x, int y, int w, int h,
 	}
     }
 
-    WaitQueue(9);
-    /* Destination Row Pitch */
-    WRITE_DPR(pSmi, 0x10, (dst_pitch << 16));
+    /* Source and Destination Row Pitch */
+    WRITE_DPR(pSmi, 0x10, (dst_pitch << 16) | (source_pitch & 0xFFFF));
     /* Drawing engine data format */
     WRITE_DPR(pSmi, 0x1C, SMI_DEDataFormat(pDst));
-    /* Destination Base Address (offset) */
+    /* Source and Destination Base Address (offset) */
+    WRITE_DPR(pSmi, 0x44, 0);
     WRITE_DPR(pSmi, 0x44, dst_offset);
 
-    /* set l/r clipping */
-    WRITE_DPR(pSmi, 0x2C, (0xFFFF0000 | x | 0x2000));
-    WRITE_DPR(pSmi, 0x30, (0xFFFF0000 | (x + w)));
-
     WRITE_DPR(pSmi, 0x0C, pSmi->AccelCmd);
     WRITE_DPR(pSmi, 0x00, 0);
     WRITE_DPR(pSmi, 0x04, (x << 16) | (y * 0xFFFF));
     WRITE_DPR(pSmi, 0x08, (w << 16) | (h & 0xFFFF));
 
-
-    srcp = (CARD32 *)src;
-    dataport = (CARD32 *)pSmi->DataPortBase;
-    queue = pSmi->DataPortSize;
-    while (dwords) {
-	if (queue < 4) {
-	    /* XXX: check if the hw is ok with this */
-	    dataport = (CARD32 *)pSmi->DataPortBase;
-	    queue = pSmi->DataPortSize;
-	}
-	memcpy(dataport, srcp, 4);
-	queue -= 4;
-	dwords--;
-	srcp++;
-	dataport++;
+    while (h--) {
+	WaitQueue(aligned_pitch);
+	memcpy(pSmi->DataPortBase, src, aligned_pitch);
+	src += src_pitch;
     }
 
-    WaitQueue(1);
     /* disable clipping */
-    WRITE_DPR(pSmi, 0x2C, 0);
+    SMI_DisableClipping(pScrn);
 
     exaWaitSync(pDst->drawable.pScreen);
 
-- 
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