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stella
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Snapshot previews in software mode are now scaled to the current zoom 

level (but still only in 16-bit mode).


git-svn-id: svn://svn.code.sf.net/p/stella/code/trunk@1365 8b62c5a3-ac7e-4cc8-8f21-d9a121418aba
This commit is contained in:
stephena 2007-09-04 00:47:00 +00:00
parent 16956287ed
commit 80e3626288
1 changed files with 16 additions and 4 deletions
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20
stella/src/common/FrameBufferSoft.cxx
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@ -13,7 +13,7 @@
// See the file "license" for information on usage and redistribution of
// this file, and for a DISCLAIMER OF ALL WARRANTIES.
//
// $Id: FrameBufferSoft.cxx,v 1.73 2007-09-03 18:37:22 stephena Exp $
// $Id: FrameBufferSoft.cxx,v 1.74 2007-09-04 00:47:00 stephena Exp $
//============================================================================
#include <sstream>
@ -652,22 +652,34 @@ void FrameBufferSoft::bytesToSurface(GUI::Surface* surface, int row,
uInt8* data) const
{
SDL_Surface* s = surface->myData;
int rowsize = s->w * 3;
int rowbytes = s->w * 3;
row *= myZoomLevel;
switch(myBytesPerPixel)
{
case 2:
{
uInt16* pixels = (uInt16*) s->pixels;
pixels += (row * s->pitch/2);
int surfbytes = s->pitch/2;
pixels += (row * surfbytes);
uInt8* pixel_ptr = (uInt8*)pixels;
for(int c = 0; c < rowsize/myZoomLevel; c += 3)
// Calculate a scanline of zoomed surface data
for(int c = 0; c < rowbytes/myZoomLevel; c += 3)
{
uInt32 pixel = SDL_MapRGB(s->format, data[c], data[c+1], data[c+2]);
uInt32 xstride = myZoomLevel;
while(xstride--)
*pixels++ = pixel;
}
// Now duplicate the scanlines (we've already done the first one)
uInt32 ystride = myZoomLevel-1;
while(ystride--)
{
memcpy(pixel_ptr + s->pitch, pixel_ptr, s->pitch);
pixel_ptr += s->pitch;
}
break;
}