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Unified scanline padding function.

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This commit is contained in:
Armin Novak 2016-11-24 09:02:06 +01:00
parent 812def37f1
commit 3c25ffb38c
1 changed files with 17 additions and 14 deletions
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31
client/X11/xf_gfx.c
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@ -176,6 +176,21 @@ UINT xf_OutputExpose(xfContext* xfc, UINT32 x, UINT32 y,
return status;
}
static INLINE UINT32 x11_pad_scanline(UINT32 scanline, UINT32 inPad)
{
if (inPad > 0)
{
const UINT32 align = inPad / 8;
const UINT32 pad = align - scanline % align;
if (align != pad)
scanline += pad;
}
return scanline;
}
/**
* Function description
*
@ -229,13 +244,7 @@ static UINT xf_CreateSurface(RdpgfxClientContext* context,
surface->gdi.scanline = surface->gdi.width * GetBytesPerPixel(
surface->gdi.format);
if (xfc->scanline_pad > 0)
{
surface->gdi.scanline += (xfc->scanline_pad / 8);
surface->gdi.scanline -= (surface->gdi.scanline % (xfc->scanline_pad / 8));
}
surface->gdi.scanline = x11_pad_scanline(surface->gdi.scanline, xfc->scanline_pad);
size = surface->gdi.scanline * surface->gdi.height;
surface->gdi.data = (BYTE*) _aligned_malloc(size, 16);
@ -258,13 +267,7 @@ static UINT xf_CreateSurface(RdpgfxClientContext* context,
UINT32 width = surface->gdi.width;
UINT32 bytes = GetBytesPerPixel(gdi->dstFormat);
surface->stageScanline = width * bytes;
if (xfc->scanline_pad > 0)
{
surface->stageScanline += (xfc->scanline_pad / 8);
surface->stageScanline -= (surface->stageScanline % (xfc->scanline_pad / 8));
}
surface->stageScanline = x11_pad_scanline(surface->stageScanline, xfc->scanline_pad);
size = surface->stageScanline * surface->gdi.height;
surface->stage = (BYTE*) _aligned_malloc(size, 16);