mirror of https://github.com/stella-emu/stella.git
Fixed more sound issues wrt irregular scanline counts. Even
Quadrun sounds better now :) Preparing for the 3.7.3 release. git-svn-id: svn://svn.code.sf.net/p/stella/code/trunk@2562 8b62c5a3-ac7e-4cc8-8f21-d9a121418aba
This commit is contained in:
stephena
parent
029ea006f6
commit
940a0bf066
24
Announce.txt
24
Announce.txt
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@ -9,7 +9,7 @@
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SSSS ttt eeeee llll llll aaaaa
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===========================================================================
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Release 3.7.2 for Linux, MacOSX and Windows
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Release 3.7.3 for Linux, MacOSX and Windows
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===========================================================================
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The Atari 2600 Video Computer System (VCS), introduced in 1977, was the
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@ -21,28 +21,28 @@ all of your favourite Atari 2600 games again! Stella was originally
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developed for Linux by Bradford W. Mott, however, it has been ported to a
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number of other platforms and is currently maintained by Stephen Anthony.
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This is the 3.7.2 release of Stella for Linux, Mac OSX and Windows. The
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This is the 3.7.3 release of Stella for Linux, Mac OSX and Windows. The
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distributions currently available are:
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* Binaries for Windows XP/Vista/7 :
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Stella-3.7.2-win32.exe (32-bit EXE installer)
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Stella-3.7.2-x64.exe (64-bit EXE installer)
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Stella-3.7.2-windows.zip (32/64 bit versions)
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Stella-3.7.3-win32.exe (32-bit EXE installer)
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Stella-3.7.3-x64.exe (64-bit EXE installer)
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Stella-3.7.3-windows.zip (32/64 bit versions)
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* Binary distribution for MacOS X 32-bit & 64-bit :
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Stella-3.7.2-macosx.dmg (32-bit Universal Binary)
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Stella-3.7.2_intel-macosx.dmg (32/64-bit Intel/OSX 10.6+)
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Stella-3.7.3-macosx.dmg (32-bit Universal Binary)
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Stella-3.7.3_intel-macosx.dmg (32/64-bit Intel/OSX 10.6+)
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* Binary distribution in 32-bit & 64-bit Ubuntu DEB format :
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stella_3.7.2-1_i386.deb
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stella_3.7.2-1_amd64.deb
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stella_3.7.3-1_i386.deb
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stella_3.7.3-1_amd64.deb
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* Binary distribution in 32-bit & 64-bit RPM format :
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stella-3.7.2-2.i386.rpm
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stella-3.7.2-2.x86_64.rpm
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stella-3.7.3-2.i386.rpm
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stella-3.7.3-2.x86_64.rpm
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* Source code distribution for all platforms :
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stella-3.7.2-src.tar.gz
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stella-3.7.3-src.tar.gz
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Distribution Site
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@ -12,7 +12,7 @@
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Release History
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===========================================================================
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3.7.2 to 3.7.3: (xxx xx, 2012)
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3.7.2 to 3.7.3: (October 26, 2012)
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* Note: because of TIA/RIOT changes, the state file format has changed
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again, and old state files will not work with this release.
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@ -21,6 +21,10 @@
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'short' frames that caused massive flickering. Also improved
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related behaviour when VSYNC isn't used at all.
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* Improved sound generation with ROMs that have irregular scanline
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counts. This fixes many demo ROMs as well as Quadrun, where
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previously there would be 'gaps' in the sound output.
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* Improved emulation of RIOT chip, in particular the behaviour of
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reading from TIMINT. Also, D6 of the Interrupt Flag register is now
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properly set on active transition of the PA7 pin.
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@ -1,4 +1,4 @@
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This is release 3.7.2 of Stella. Stella is a multi-platform Atari 2600 VCS
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This is release 3.7.3 of Stella. Stella is a multi-platform Atari 2600 VCS
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emulator which allows you to play all of your favourite Atari 2600 games
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on your PC. You'll find the Stella Users Manual in the docs subdirectory.
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If you'd like to verify that you have the latest release of Stella visit
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@ -9,4 +9,4 @@ the Stella Website at:
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Enjoy,
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The Stella Team
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June 10, 2012
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October 26, 2012
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@ -1,3 +1,10 @@
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stella (3.7.3-1) stable; urgency=high
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* Version 3.7.3 release
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-- Stephen Anthony <stephena@users.sf.net> Fri, 26 Oct 2012 18:38:25 +0200
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stella (3.7.2-1) stable; urgency=high
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* Version 3.7.2 release
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@ -10,7 +10,7 @@
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<br><br>
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<center><h2><b>A multi-platform Atari 2600 VCS emulator</b></h2></center>
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<center><h4><b>Release 3.7.2</b></h4></center>
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<center><h4><b>Release 3.7.3</b></h4></center>
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<br><br>
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<center><h2><b>User's Guide</b></h2></center>
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@ -612,11 +612,41 @@ inline void TIA::endFrame()
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return;
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}
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// This stuff should only happen at the end of a frame
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// Compute the number of scanlines in the frame
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uInt32 previousCount = myScanlineCountForLastFrame;
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myScanlineCountForLastFrame = scanlines();
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// The following handle cases where scanlines either go too high or too
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// low compared to the previous frame, in which case certain portions
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// of the framebuffer are cleared to zero (black pixels)
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// Due to the FrameBuffer class (potentially) doing dirty-rectangle
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// updates, each internal buffer must be set slightly differently,
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// otherwise they won't know anything has changed
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// Hence, the front buffer is set to pixel 0, and the back to pixel 1
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// Did we generate too many scanlines?
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// (usually caused by VBLANK/VSYNC taking too long or not occurring at all)
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// If so, blank entire viewable area
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if(myScanlineCountForLastFrame > 342)
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{
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myScanlineCountForLastFrame = 342;
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if(previousCount <= 342)
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{
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memset(myCurrentFrameBuffer, 0, 160 * 320);
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memset(myPreviousFrameBuffer, 1, 160 * 320);
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}
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}
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// Did the number of scanlines decrease?
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// If so, blank scanlines that weren't rendered this frame
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else if(myScanlineCountForLastFrame < previousCount &&
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myScanlineCountForLastFrame < 320 && previousCount < 320)
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{
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uInt32 offset = myScanlineCountForLastFrame * 160,
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stride = (previousCount - myScanlineCountForLastFrame) * 160;
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memset(myCurrentFrameBuffer + offset, 0, stride);
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memset(myPreviousFrameBuffer + offset, 1, stride);
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}
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// Stats counters
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myFrameCounter++;
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if(myScanlineCountForLastFrame >= 287)
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@ -636,33 +666,6 @@ inline void TIA::endFrame()
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if(offset > myStopDisplayOffset && offset < 228 * 320)
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myStopDisplayOffset = offset;
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}
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// The following handle cases where scanlines either go too high or too
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// low compared to the previous frame, in which case certain portions
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// of the framebuffer are cleared to zero (black pixels)
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// Due to the FrameBuffer class (potentially) doing dirty-rectangle
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// updates, each internal buffer must be set slightly differently,
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// otherwise they won't know anything has changed
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// Hence, the front buffer is set to pixel 0, and the back to pixel 1
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// Did we generate too many scanlines?
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// (usually caused by VBLANK taking too long)
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// If so, blank entire viewable area
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if(myScanlineCountForLastFrame > 342 && previousCount <= 342)
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{
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memset(myCurrentFrameBuffer, 0, 160 * 320);
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memset(myPreviousFrameBuffer, 1, 160 * 320);
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}
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// Did the number of scanlines decrease?
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// If so, blank scanlines that weren't rendered this frame
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else if(myScanlineCountForLastFrame < previousCount &&
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myScanlineCountForLastFrame < 320 && previousCount < 320)
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{
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uInt32 offset = myScanlineCountForLastFrame * 160,
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stride = (previousCount - myScanlineCountForLastFrame) * 160;
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memset(myCurrentFrameBuffer + offset, 0, stride);
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memset(myPreviousFrameBuffer + offset, 1, stride);
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}
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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<key>CFBundleSignature</key>
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<string>StLa</string>
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<key>CFBundleVersion</key>
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<string>3.7.2</string>
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<string>3.7.3</string>
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<key>NSMainNibFile</key>
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<string>SDLMain.nib</string>
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<key>NSPrincipalClass</key>
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@ -1,63 +0,0 @@
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#!/bin/sh
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# $Id: stella.SlackBuild,v 1.14 2009-05-01 11:25:07 stephena Exp $
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# stella.SlackBuild for Stella 3.x, B. Watson, 2005
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# Comment out following line to build without OpenGL support
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BUILD_GL=1
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die() {
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echo "Fatal error: $*"
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echo "(Look for error messages above)"
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exit 1
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}
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VERSION=3.7.2
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ARCH=${ARCH-i486}
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BUILD=1
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TMP=${TMP-/tmp}
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PKG=/tmp/package-stella
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CWD=`pwd`
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rm -rf $PKG $TMP/stella-$VERSION
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mkdir -p $PKG
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cd $TMP
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tar xvfz $CWD/stella-$VERSION-src.tar.gz
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cd stella-$VERSION || die "You must run this script in the same directory as the stella-$VERSION-src.tar.gz archive"
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if [ "$BUILD_GL" = "" ]; then
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NOGL="--disable-gl"
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NAME="stella_nogl"
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else
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NOGL=""
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NAME="stella_gl"
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fi
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./configure --prefix=/usr $NOGL || die "configure failed"
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make || die "make failed"
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make install DESTDIR=$PKG DOCDIR=/usr/doc/stella-$VERSION || die "make install failed"
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cd $PKG
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mkdir -p install
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cat <<EOF >install/slack-desc
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stella: Stella is a multi-platform Atari 2600 VCS emulator released under the
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stella: GNU General Public License (GPL).
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stella:
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stella: Version 2.0 includes many new features, such as "frying", cheat code
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stella: support, and an integrated debugger for VCS game developers (with DASM
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stella: symbol file support).
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stella:
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stella: Homepage: http://stella.sourceforge.net/
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stella: Author: Bradford W. Mott, Stephen Anthony and the Stella Team
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stella:
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stella:
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EOF
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strip usr/bin/stella
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chown -R root.bin usr/bin
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makepkg -l y -c n $TMP/$NAME-$VERSION-$ARCH-$BUILD.tgz
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@ -1,5 +1,5 @@
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%define name stella
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%define version 3.7.2
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%define version 3.7.3
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%define rel 1
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%define enable_gl 1
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@ -108,6 +108,9 @@ rm -rf $RPM_BUILD_DIR/%{name}-%{version}
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%_datadir/icons/large/%{name}.png
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%changelog
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* Fri Oct 26 2012 Stephen Anthony <stephena@users.sf.net> 3.7.3-1
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- Version 3.7.3 release
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* Sun Jun 10 2012 Stephen Anthony <stephena@users.sf.net> 3.7.2-1
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- Version 3.7.2 release
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@ -36,8 +36,8 @@ IDI_ICON ICON "stella.ico"
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//
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VS_VERSION_INFO VERSIONINFO
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FILEVERSION 3,7,2,0
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PRODUCTVERSION 3,7,2,0
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FILEVERSION 3,7,3,0
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PRODUCTVERSION 3,7,3,0
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FILEFLAGSMASK 0x3fL
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#ifdef _DEBUG
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FILEFLAGS 0x1L
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@ -55,12 +55,12 @@ BEGIN
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VALUE "Comments", "The multi-platform Atari 2600 emulator. Stella is released under the GPLv2."
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VALUE "CompanyName", "The Stella Team (http://stella.sourceforge.net)"
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VALUE "FileDescription", "Stella"
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VALUE "FileVersion", "3.7.2"
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VALUE "FileVersion", "3.7.3"
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VALUE "InternalName", "Stella"
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VALUE "LegalCopyright", "Copyright (C) 1995-2012 The Stella Team"
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VALUE "OriginalFilename", "Stella.exe"
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VALUE "ProductName", "Stella"
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VALUE "ProductVersion", "3.7.2"
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VALUE "ProductVersion", "3.7.3"
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END
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END
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BLOCK "VarFileInfo"
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