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/*
* Copyright 1999 Mark Vojkovich
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "nv_include.h"
#include "nv_type.h"
#include "shadowfb.h"
#include "servermd.h"
#define MIN(a, b) (((a) < (b)) ? (a) : (b))
#define MAX(a, b) (((a) > (b)) ? (a) : (b))
void
NVRefreshArea(ScrnInfoPtr pScrn, int num, BoxPtr pbox)
{
NVPtr pNv = NVPTR(pScrn);
int x1, y1, x2, y2, width, height, cpp, FBPitch, max_height;
unsigned char *src, *dst;
cpp = pScrn->bitsPerPixel >> 3;
FBPitch = pScrn->displayWidth * cpp;
max_height = pNv->scanout->size/FBPitch;
nouveau_bo_map(pNv->scanout, NOUVEAU_BO_WR, pNv->client);
while(num--) {
x1 = MAX(pbox->x1, 0);
y1 = MAX(pbox->y1, 0);
x2 = MIN(pbox->x2, pScrn->displayWidth);
y2 = MIN(pbox->y2, max_height);
width = (x2 - x1) * cpp;
height = y2 - y1;
if (width > 0 && height > 0) {
src = pNv->ShadowPtr + (y1 * pNv->ShadowPitch) + (x1 * cpp);
dst = pNv->scanout->map + (y1 * FBPitch) + (x1 * cpp);
while(height--) {
memcpy(dst, src, width);
dst += FBPitch;
src += pNv->ShadowPitch;
}
}
pbox++;
}
}
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