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Grey-out old frame contents when stepping by scanline 

git-svn-id: svn://svn.code.sf.net/p/stella/code/trunk@662 8b62c5a3-ac7e-4cc8-8f21-d9a121418aba
This commit is contained in:
urchlay 2005-07-16 23:04:15 +00:00
parent fbd0744474
commit f80c061d85
1 changed files with 14 additions and 4 deletions
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18
stella/src/emucore/TIA.cxx
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@ -13,7 +13,7 @@
// See the file "license" for information on usage and redistribution of // See the file "license" for information on usage and redistribution of
// this file, and for a DISCLAIMER OF ALL WARRANTIES. // this file, and for a DISCLAIMER OF ALL WARRANTIES.
// //
// $Id: TIA.cxx,v 1.51 2005-07-16 22:35:10 urchlay Exp $ // $Id: TIA.cxx,v 1.52 2005-07-16 23:04:15 urchlay Exp $
//============================================================================ //============================================================================
#include <cassert> #include <cassert>
@ -574,14 +574,15 @@ void TIA::endFrame() {
void TIA::updateScanline() void TIA::updateScanline()
{ {
// Start a new frame if the old one was finished // Start a new frame if the old one was finished
if(!myPartialFrameFlag) if(!myPartialFrameFlag) {
startFrame(); startFrame();
// don't leave the old frame contents as a giant turd
clearToBottom();
}
// true either way: // true either way:
myPartialFrameFlag = true; myPartialFrameFlag = true;
// don't leave the old frame contents as a giant turd
clearToBottom();
int totalClocks = (mySystem->cycles() * 3) - myClockWhenFrameStarted; int totalClocks = (mySystem->cycles() * 3) - myClockWhenFrameStarted;
int endClock = ((totalClocks + 228) / 228) * 228; int endClock = ((totalClocks + 228) / 228) * 228;
@ -1865,9 +1866,18 @@ inline void TIA::waitHorizontalSync()
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
void TIA::clearToBottom() void TIA::clearToBottom()
{ {
/*
for(int s = scanlines() + 1; s < 300; s++) for(int s = scanlines() + 1; s < 300; s++)
for(int i = 0; i < 160; i++) for(int i = 0; i < 160; i++)
myCurrentFrameBuffer[s * 160 + i] = 0; myCurrentFrameBuffer[s * 160 + i] = 0;
*/
for(int s = scanlines() + 1; s < 300; s++)
for(int i = 0; i < 160; i++) {
uInt8 tmp = myCurrentFrameBuffer[s * 160 + i] & 0x0f;
tmp >>= 1;
myCurrentFrameBuffer[s * 160 + i] = tmp;
}
} }
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -