diff options
| -rw-r--r-- | src/mga_exa.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/mga_exa.c b/src/mga_exa.c index 066215f..c39af50 100644 --- a/src/mga_exa.c +++ b/src/mga_exa.c @@ -728,6 +728,31 @@ mgaUploadToScreen(PixmapPtr pDst, int x, int y, int w, int h, return TRUE; } +static Bool +mgaDownloadFromScreen(PixmapPtr pSrc, int x, int y, int w, int h, + char *dst, int dst_pitch) +{ + PMGA(pSrc); + + char *src = pSrc->devPrivate.ptr; + int src_pitch = exaGetPixmapPitch(pSrc); + + int cpp = (pSrc->drawable.bitsPerPixel + 7) / 8; + int bytes = w * cpp; + + src += y * src_pitch + x * cpp; + + QUIESCE_DMA(pSrc); + + while (h--) { + memcpy (dst, src, bytes); + src += src_pitch; + dst += dst_pitch; + } + + return TRUE; +} + static void mgaWaitMarker(ScreenPtr pScreen, int marker) { @@ -873,6 +898,7 @@ mgaExaInit(ScreenPtr pScreen) } pExa->UploadToScreen = mgaUploadToScreen; + pExa->DownloadFromScreen = mgaDownloadFromScreen; if (pMga->directRenderingEnabled) init_dri(pScrn); |