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Added phosphor effect for 24-bit colour depth in software mode. I'm unable 

to test this, so I'm sure that it's probably slow and doesn't render
correctly.  For anyone using this mode; switch to 16-bit software mode,
use OpenGL, or get a better video card :)


git-svn-id: svn://svn.code.sf.net/p/stella/code/trunk@976 8b62c5a3-ac7e-4cc8-8f21-d9a121418aba
This commit is contained in:
stephena 2006-01-20 20:07:25 +00:00
parent b946072594
commit ca3e68dc7b
1 changed files with 21 additions and 9 deletions
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30
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 1.44 2006-01-15 22:43:21 stephena Exp $
// $Id: FrameBufferSoft.cxx,v 1.45 2006-01-20 20:07:25 stephena Exp $
//============================================================================
#include <SDL.h>
@ -101,7 +101,7 @@ bool FrameBufferSoft::createScreen()
myPitch = myScreen->pitch/2;
break;
case 24:
myPitch = myScreen->pitch/3;
myPitch = myScreen->pitch;
break;
case 32:
myPitch = myScreen->pitch/4;
@ -310,8 +310,6 @@ void FrameBufferSoft::drawMediaSource()
case kPhosphor_24:
{
// FIXME - implement 24 bit mode
#if 0
// Since phosphor mode updates the whole screen,
// we might as well use SDL_Flip (see postFrameUpdate)
myUseDirtyRects = false;
@ -319,7 +317,7 @@ void FrameBufferSoft::drawMediaSource()
temp.x = temp.y = temp.w = temp.h = 0;
myRectList->add(&temp);
uInt16* buffer = (uInt16*)myScreen->pixels;
uInt8* buffer = (uInt8*)myScreen->pixels;
uInt32 bufofsY = 0;
uInt32 screenofsY = 0;
for(uInt32 y = 0; y < height; ++y )
@ -335,18 +333,32 @@ void FrameBufferSoft::drawMediaSource()
uInt8 v = currentFrame[bufofs];
uInt8 w = previousFrame[bufofs];
uInt8 r, g, b;
if(SDL_BYTEORDER == SDL_BIG_ENDIAN)
{
uInt32 pixel = myAvgPalette[v][w];
b = pixel & 0xff;
g = (pixel & 0xff00) >> 8;
r = (pixel & 0xff0000) >> 16;
}
else
{
uInt32 pixel = myAvgPalette[v][w];
r = pixel & 0xff;
g = (pixel & 0xff00) >> 8;
b = (pixel & 0xff0000) >> 16;
}
while(xstride--)
{
buffer[pos++] = (uInt16) myAvgPalette[v][w];
buffer[pos++] = (uInt16) myAvgPalette[v][w];
buffer[pos++] = r; buffer[pos++] = g; buffer[pos++] = b;
buffer[pos++] = r; buffer[pos++] = g; buffer[pos++] = b;
}
}
screenofsY += myPitch;
}
bufofsY += width;
}
#endif
break; // kPhosphor_24
}
@ -632,7 +644,7 @@ void FrameBufferSoft::enablePhosphor(bool enable)
myRenderType = kPhosphor_16;
break;
case 24:
myPitch = myScreen->pitch/3;
myPitch = myScreen->pitch;
myRenderType = kPhosphor_24;
break;
case 32: