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/*
* Copyright (C) 1999-2004 by The XFree86 Project, Inc.
* based on code written by Mark Vojkovich
* Copyright (C) 2003-2005 Thomas Winischhofer
*
* Licensed under the following terms:
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appears in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* and that the name of the copyright holder not be used in advertising
* or publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holder makes no representations
* about the suitability of this software for any purpose. It is provided
* "as is" without expressed or implied warranty.
*
* THE COPYRIGHT HOLDER DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO
* EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*
* This module doesn't use CurrentLayout, because it is never
* active when DGA is active and vice versa.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "sis.h"
#include "servermd.h"
void SISPointerMoved(int index, int x, int y);
void SISPointerMovedReflect(int index, int x, int y);
void SISRefreshArea(ScrnInfoPtr pScrn, int num, BoxPtr pbox);
void SISRefreshAreaReflect(ScrnInfoPtr pScrn, int num, BoxPtr pbox);
void SISRefreshArea8(ScrnInfoPtr pScrn, int num, BoxPtr pbox);
void SISRefreshArea16(ScrnInfoPtr pScrn, int num, BoxPtr pbox);
void SISRefreshArea24(ScrnInfoPtr pScrn, int num, BoxPtr pbox);
void SISRefreshArea32(ScrnInfoPtr pScrn, int num, BoxPtr pbox);
void
SISPointerMoved(int index, int x, int y)
{
ScrnInfoPtr pScrn = xf86Screens[index];
SISPtr pSiS = SISPTR(pScrn);
if(pSiS->Rotate == 1) {
(*pSiS->PointerMoved)(index, pScrn->pScreen->height - y - 1, x);
} else {
(*pSiS->PointerMoved)(index, y, pScrn->pScreen->width - x - 1);
}
}
void
SISPointerMovedReflect(int index, int x, int y)
{
ScrnInfoPtr pScrn = xf86Screens[index];
SISPtr pSiS = SISPTR(pScrn);
switch(pSiS->Reflect) {
case 1: /* x */
(*pSiS->PointerMoved)(index, pScrn->pScreen->width - x - 1, y);
break;
case 2: /* y */
(*pSiS->PointerMoved)(index, x, pScrn->pScreen->height - y - 1);
break;
case 3: /* x + y */
(*pSiS->PointerMoved)(index, pScrn->pScreen->width - x - 1, pScrn->pScreen->height - y - 1);
}
}
/* Refresh area (unreflected, unrotated) */
void
SISRefreshArea(ScrnInfoPtr pScrn, int num, BoxPtr pbox)
{
SISPtr pSiS = SISPTR(pScrn);
int width, height, Bpp, FBPitch;
CARD8 *src, *dst;
Bpp = pScrn->bitsPerPixel >> 3;
FBPitch = BitmapBytePad(pScrn->displayWidth * pScrn->bitsPerPixel);
while(num--) {
width = (pbox->x2 - pbox->x1) * Bpp;
height = pbox->y2 - pbox->y1;
src = pSiS->ShadowPtr + (pbox->y1 * pSiS->ShadowPitch) + (pbox->x1 * Bpp);
dst = pSiS->FbBase + (pbox->y1 * FBPitch) + (pbox->x1 * Bpp);
while(height--) {
SiSMemCopyToVideoRam(pSiS, dst, src, width);
dst += FBPitch;
src += pSiS->ShadowPitch;
}
pbox++;
}
}
/* RefreshArea for reflection */
void
SISRefreshAreaReflect(ScrnInfoPtr pScrn, int num, BoxPtr pbox)
{
SISPtr pSiS = SISPTR(pScrn);
int width, height, Bpp, FBPitch, twidth;
CARD8 *src, *dst, *tdst, *tsrc;
CARD16 *tdst16, *tsrc16;
CARD32 *tdst32, *tsrc32;
Bpp = pScrn->bitsPerPixel >> 3;
FBPitch = BitmapBytePad(pScrn->displayWidth * pScrn->bitsPerPixel);
while(num--) {
width = (pbox->x2 - pbox->x1) * Bpp;
height = pbox->y2 - pbox->y1;
src = pSiS->ShadowPtr + (pbox->y1 * pSiS->ShadowPitch) + (pbox->x1 * Bpp);
dst = pSiS->FbBase;
switch(pSiS->Reflect) {
case 1: /* x */
dst += (pbox->y1 * FBPitch) + ((pScrn->displayWidth - pbox->x1 - 1) * Bpp);
switch(Bpp) {
case 1:
while(height--) {
tdst = dst;
tsrc = src;
twidth = width;
while(twidth--) *tdst-- = *tsrc++;
dst += FBPitch;
src += pSiS->ShadowPitch;
}
break;
case 2:
width >>= 1;
while(height--) {
tdst16 = (CARD16 *)dst;
tsrc16 = (CARD16 *)src;
twidth = width;
while(twidth--) *tdst16-- = *tsrc16++;
dst += FBPitch;
src += pSiS->ShadowPitch;
}
break;
case 4:
width >>= 2;
while(height--) {
tdst32 = (CARD32 *)dst;
tsrc32 = (CARD32 *)src;
twidth = width;
while(twidth--) *tdst32-- = *tsrc32++;
dst += FBPitch;
src += pSiS->ShadowPitch;
}
}
break;
case 2: /* y */
dst += ((pScrn->virtualY - pbox->y1 - 1) * FBPitch) + (pbox->x1 * Bpp);
while(height--) {
SiSMemCopyToVideoRam(pSiS, dst, src, width);
dst -= FBPitch;
src += pSiS->ShadowPitch;
}
break;
case 3: /* x + y */
dst += ((pScrn->virtualY - pbox->y1 - 1) * FBPitch) + ((pScrn->displayWidth - pbox->x1 - 1) * Bpp);
switch(Bpp) {
case 1:
while(height--) {
tdst = dst;
tsrc = src;
twidth = width;
while(twidth--) *tdst-- = *tsrc++;
dst -= FBPitch;
src += pSiS->ShadowPitch;
}
break;
case 2:
width >>= 1;
while(height--) {
tdst16 = (CARD16 *)dst;
tsrc16 = (CARD16 *)src;
twidth = width;
while(twidth--) *tdst16-- = *tsrc16++;
dst -= FBPitch;
src += pSiS->ShadowPitch;
}
break;
case 4:
width >>= 2;
while(height--) {
tdst32 = (CARD32 *)dst;
tsrc32 = (CARD32 *)src;
twidth = width;
while(twidth--) *tdst32-- = *tsrc32++;
dst -= FBPitch;
src += pSiS->ShadowPitch;
}
break;
}
}
pbox++;
}
}
/* RefreshArea()s for rotation */
void
SISRefreshArea8(ScrnInfoPtr pScrn, int num, BoxPtr pbox)
{
SISPtr pSiS = SISPTR(pScrn);
int count, width, height, y1, y2, dstPitch, srcPitch;
CARD8 *dstPtr, *srcPtr, *src;
CARD32 *dst;
dstPitch = pScrn->displayWidth;
srcPitch = -pSiS->Rotate * pSiS->ShadowPitch;
while(num--) {
width = pbox->x2 - pbox->x1;
y1 = pbox->y1 & ~3;
y2 = (pbox->y2 + 3) & ~3;
height = (y2 - y1) >> 2; /* in dwords */
if(pSiS->Rotate == 1) {
dstPtr = pSiS->FbBase + (pbox->x1 * dstPitch) + pScrn->virtualX - y2;
srcPtr = pSiS->ShadowPtr + ((1 - y2) * srcPitch) + pbox->x1;
} else {
dstPtr = pSiS->FbBase + ((pScrn->virtualY - pbox->x2) * dstPitch) + y1;
srcPtr = pSiS->ShadowPtr + (y1 * srcPitch) + pbox->x2 - 1;
}
while(width--) {
src = srcPtr;
dst = (CARD32 *)dstPtr;
count = height;
while(count--) {
*(dst++) = src[0] |
(src[srcPitch] << 8) |
(src[srcPitch * 2] << 16) |
(src[srcPitch * 3] << 24);
src += (srcPitch * 4);
}
srcPtr += pSiS->Rotate;
dstPtr += dstPitch;
}
pbox++;
}
}
void
SISRefreshArea16(ScrnInfoPtr pScrn, int num, BoxPtr pbox)
{
SISPtr pSiS = SISPTR(pScrn);
int count, width, height, y1, y2, dstPitch, srcPitch;
CARD16 *dstPtr, *srcPtr, *src;
CARD32 *dst;
dstPitch = pScrn->displayWidth;
srcPitch = -pSiS->Rotate * pSiS->ShadowPitch >> 1;
while(num--) {
width = pbox->x2 - pbox->x1;
y1 = pbox->y1 & ~1;
y2 = (pbox->y2 + 1) & ~1;
height = (y2 - y1) >> 1; /* in dwords */
if(pSiS->Rotate == 1) {
dstPtr = (CARD16 *)pSiS->FbBase + (pbox->x1 * dstPitch) + pScrn->virtualX - y2;
srcPtr = (CARD16 *)pSiS->ShadowPtr + ((1 - y2) * srcPitch) + pbox->x1;
} else {
dstPtr = (CARD16 *)pSiS->FbBase + ((pScrn->virtualY - pbox->x2) * dstPitch) + y1;
srcPtr = (CARD16 *)pSiS->ShadowPtr + (y1 * srcPitch) + pbox->x2 - 1;
}
while(width--) {
src = srcPtr;
dst = (CARD32 *)dstPtr;
count = height;
while(count--) {
*(dst++) = src[0] | (src[srcPitch] << 16);
src += (srcPitch * 2);
}
srcPtr += pSiS->Rotate;
dstPtr += dstPitch;
}
pbox++;
}
}
/* this one could be faster */
void
SISRefreshArea24(ScrnInfoPtr pScrn, int num, BoxPtr pbox)
{
SISPtr pSiS = SISPTR(pScrn);
int count, width, height, y1, y2, dstPitch, srcPitch;
CARD8 *dstPtr, *srcPtr, *src;
CARD32 *dst;
dstPitch = BitmapBytePad(pScrn->displayWidth * 24);
srcPitch = -pSiS->Rotate * pSiS->ShadowPitch;
while(num--) {
width = pbox->x2 - pbox->x1;
y1 = pbox->y1 & ~3;
y2 = (pbox->y2 + 3) & ~3;
height = (y2 - y1) >> 2; /* blocks of 3 dwords */
if(pSiS->Rotate == 1) {
dstPtr = pSiS->FbBase + (pbox->x1 * dstPitch) + ((pScrn->virtualX - y2) * 3);
srcPtr = pSiS->ShadowPtr + ((1 - y2) * srcPitch) + (pbox->x1 * 3);
} else {
dstPtr = pSiS->FbBase + ((pScrn->virtualY - pbox->x2) * dstPitch) + (y1 * 3);
srcPtr = pSiS->ShadowPtr + (y1 * srcPitch) + (pbox->x2 * 3) - 3;
}
while(width--) {
src = srcPtr;
dst = (CARD32 *)dstPtr;
count = height;
while(count--) {
dst[0] = src[0] |
(src[1] << 8) |
(src[2] << 16) |
(src[srcPitch] << 24);
dst[1] = src[srcPitch + 1] |
(src[srcPitch + 2] << 8) |
(src[srcPitch * 2] << 16) |
(src[(srcPitch * 2) + 1] << 24);
dst[2] = src[(srcPitch * 2) + 2] |
(src[srcPitch * 3] << 8) |
(src[(srcPitch * 3) + 1] << 16) |
(src[(srcPitch * 3) + 2] << 24);
dst += 3;
src += (srcPitch << 2);
}
srcPtr += pSiS->Rotate * 3;
dstPtr += dstPitch;
}
pbox++;
}
}
void
SISRefreshArea32(ScrnInfoPtr pScrn, int num, BoxPtr pbox)
{
SISPtr pSiS = SISPTR(pScrn);
int count, width, height, dstPitch, srcPitch;
CARD32 *dstPtr, *srcPtr, *src, *dst;
dstPitch = pScrn->displayWidth;
srcPitch = -pSiS->Rotate * pSiS->ShadowPitch >> 2;
while(num--) {
width = pbox->x2 - pbox->x1;
height = pbox->y2 - pbox->y1;
if(pSiS->Rotate == 1) {
dstPtr = (CARD32 *)pSiS->FbBase + (pbox->x1 * dstPitch) + pScrn->virtualX - pbox->y2;
srcPtr = (CARD32 *)pSiS->ShadowPtr + ((1 - pbox->y2) * srcPitch) + pbox->x1;
} else {
dstPtr = (CARD32 *)pSiS->FbBase + ((pScrn->virtualY - pbox->x2) * dstPitch) + pbox->y1;
srcPtr = (CARD32 *)pSiS->ShadowPtr + (pbox->y1 * srcPitch) + pbox->x2 - 1;
}
while(width--) {
src = srcPtr;
dst = dstPtr;
count = height;
while(count--) {
*(dst++) = *src;
src += srcPitch;
}
srcPtr += pSiS->Rotate;
dstPtr += dstPitch;
}
pbox++;
}
}
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