Gens/GS r7_pre2 - Preview Release

**GerbilSoft** · July 28th, 2009

~~I finally got the new plugin system in Gens/GS to a point where I can call it v1.0. However, I'm not quite done with Gens/GS r7. So, I'm releasing an almost-done preview release, r7_pre2.~~

~~Gens/GS r7_pre3 is out now, with fixes for some bugs that crashed the emulator in some situations. (Also, I added a page for mdp_error.h in the MDP documentation.)~~

Gens/GS r7_pre4 is out now. Release 7 won't be out until I finish the documentation, but there's a ton of useful bug fixes in r7_pre4, including a fix for an SRAM regression introduced in r7_pre2 and proper POV hat support on Linux. (I have no idea why the Ubuntu developers decided to use POV hats on 9.04, but whatever.)

Gens/GS r7_pre5 is out now. I really didn't want to do another prerelease, but this has a ton of changes, including fixes for inverted axes in Controller Configuration on the Linux version, plus a fix with POV hats on the Linux version. Additionally, RGB color scaling is now supported, so, for example, an MD CRAM color 0xEEE is scaled to RGB(255,255,255) instead of RGB(224,224,224). This results in brighter images, and is more accurate to how the actual hardware works. (0xEEE tells the VDP to output maximum brightness for all three color components.) [This can be turned off in Graphics, Color Adjust.]

Please test it and report any bugs you may find.

Changes from m6 to r7_pre5: http://gs_server.gerbilsoft.ddns.inf...release-7_pre5

Downloads:

Source Code: gens-gs-r7_pre5.tar.gz
Ubuntu 8.04+ (i386): gens_2.16.6.95_i386.deb
Win32 (i386): gens-gs-r7_pre5-win32.zip

EDIT: Release 7, Preview 5 is out.

**mocha** · July 29th, 2009

Do you still use the site http://info.sonicretro.org/Gens/GS? I just happened to come across this post by accident but was always trying to follow the development of gens at the sonicretro site.

**mister_k81** · July 29th, 2009

Nice to see you continue work on this emulator.

Anyway, I tried it and the first thing that happened on start up was that it crashed, giving me this error message:

Code:

b66bb000-b66bc000 rw-gens:1:gens_sighandler(): Signal 6 (SIGABRT) received. Shutting down.

But this issue was solved simply by deleting my .gens directory for Gens/GS milestone 6.

The second time it crashed on me was when I tried to change the OpenGL custom resolution settings. It gave me the following error message:

Code:

*** stack smashing detected ***: gens terminated
======= Backtrace: =========
/lib/tls/i686/cmov/libc.so.6(__fortify_fail+0x48)[0xb75dada8]
/lib/tls/i686/cmov/libc.so.6(__fortify_fail+0x0)[0xb75dad60]
gens[0x80bcf4a]
gens[0x80cadab]
/usr/lib/libgobject-2.0.so.0(g_cclosure_marshal_VOID__INT+0x8c)[0xb78c40ec]
/usr/lib/libgobject-2.0.so.0(g_closure_invoke+0x1ab)[0xb78b6c7b]
/usr/lib/libgobject-2.0.so.0[0xb78cce57]
/usr/lib/libgobject-2.0.so.0(g_signal_emit_valist+0x7b9)[0xb78ce4b9]
/usr/lib/libgobject-2.0.so.0(g_signal_emit+0x26)[0xb78ce936]
/usr/lib/libgtk-x11-2.0.so.0(gtk_dialog_response+0x91)[0xb7b44b31]
/usr/lib/libgobject-2.0.so.0(g_cclosure_marshal_VOID__VOID+0x84)[0xb78c43a4]
/usr/lib/libgobject-2.0.so.0(g_closure_invoke+0x1ab)[0xb78b6c7b]
/usr/lib/libgobject-2.0.so.0[0xb78cce57]
/usr/lib/libgobject-2.0.so.0(g_signal_emit_valist+0x7b9)[0xb78ce4b9]
/usr/lib/libgobject-2.0.so.0(g_signal_emit+0x26)[0xb78ce936]
/usr/lib/libgtk-x11-2.0.so.0(gtk_button_clicked+0x8a)[0xb7b12bda]
/usr/lib/libgtk-x11-2.0.so.0[0xb7b141f8]
/usr/lib/libgobject-2.0.so.0(g_cclosure_marshal_VOID__VOID+0x84)[0xb78c43a4]
/usr/lib/libgobject-2.0.so.0[0xb78b53d9]
/usr/lib/libgobject-2.0.so.0(g_closure_invoke+0x1ab)[0xb78b6c7b]
/usr/lib/libgobject-2.0.so.0[0xb78cc6c0]
/usr/lib/libgobject-2.0.so.0(g_signal_emit_valist+0x7b9)[0xb78ce4b9]
/usr/lib/libgobject-2.0.so.0(g_signal_emit+0x26)[0xb78ce936]
/usr/lib/libgtk-x11-2.0.so.0(gtk_button_released+0x8a)[0xb7b12c7a]
/usr/lib/libgtk-x11-2.0.so.0[0xb7b12cb3]
/usr/lib/libgtk-x11-2.0.so.0[0xb7bcd526]
/usr/lib/libgobject-2.0.so.0[0xb78b53d9]
/usr/lib/libgobject-2.0.so.0(g_closure_invoke+0x1ab)[0xb78b6c7b]
/usr/lib/libgobject-2.0.so.0[0xb78ccaff]
/usr/lib/libgobject-2.0.so.0(g_signal_emit_valist+0x64f)[0xb78ce34f]
/usr/lib/libgobject-2.0.so.0(g_signal_emit+0x26)[0xb78ce936]
/usr/lib/libgtk-x11-2.0.so.0[0xb7ce82ae]
/usr/lib/libgtk-x11-2.0.so.0(gtk_propagate_event+0xec)[0xb7bc5f7c]
/usr/lib/libgtk-x11-2.0.so.0(gtk_main_do_event+0x2e7)[0xb7bc7327]
/usr/lib/libgdk-x11-2.0.so.0[0xb7a5434a]
/usr/lib/libglib-2.0.so.0(g_main_context_dispatch+0x1e8)[0xb7829b88]
/usr/lib/libglib-2.0.so.0[0xb782d0eb]
/usr/lib/libglib-2.0.so.0(g_main_context_iteration+0x68)[0xb782d268]
/usr/lib/libgtk-x11-2.0.so.0(gtk_main_iteration_do+0x33)[0xb7bc75c3]
gens[0x80ba5c4]
gens[0x80ba6a7]
gens[0x8050b81]
gens[0x80b5c12]
/lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe5)[0xb74f3775]
gens[0x80504e1]
======= Memory map: ========
08048000-08238000 r-xp 00000000 08:11 26271      /usr/bin/gens
08238000-0824d000 rw-p 001f0000 08:11 26271      /usr/bin/gens
0824d000-0930d000 rw-p 0824d000 00:00 0 
0a459000-0a8df000 rw-p 0a459000 00:00 0          [heap]
b47b6000-b48eb000 r-xp 00000000 08:11 10338      /usr/lib/libxml2.so.2.6.32
b48eb000-b48ec000 ---p 00135000 08:11 10338      /usr/lib/libxml2.so.2.6.32
b48ec000-b48f0000 r--p 00135000 08:11 10338      /usr/lib/libxml2.so.2.6.32
b48f0000-b48f1000 rw-p 00139000 08:11 10338      /usr/lib/libxml2.so.2.6.32
b48f1000-b48f2000 rw-p b48f1000 00:00 0 
b48f2000-b4923000 r-xp 00000000 08:11 9527       /usr/lib/libcroco-0.6.so.3.0.1
b4923000-b4926000 rw-p 00030000 08:11 9527       /usr/lib/libcroco-0.6.so.3.0.1
b4926000-b4959000 r-xp 00000000 08:11 9804       /usr/lib/libgsf-1.so.114.0.11
b4959000-b495a000 ---p 00033000 08:11 9804       /usr/lib/libgsf-1.so.114.0.11
b495a000-b495c000 r--p 00033000 08:11 9804       /usr/lib/libgsf-1.so.114.0.11
b495c000-b495d000 rw-p 00035000 08:11 9804       /usr/lib/libgsf-1.so.114.0.11
b495d000-b495e000 rw-p b495d000 00:00 0 
b495e000-b498f000 r-xp 00000000 08:11 10182      /usr/lib/librsvg-2.so.2.26.0
b498f000-b4990000 r--p 00031000 08:11 10182      /usr/lib/librsvg-2.so.2.26.0
b4990000-b4991000 rw-p 00032000 08:11 10182      /usr/lib/librsvg-2.so.2.26.0
b49a6000-b49c0000 r--s 00000000 08:11 28246      /usr/share/mime/mime.cache
b49c0000-b49da000 r-xp 00000000 08:11 50788      /usr/lib/gio/modules/libgvfsdbus.so
b49da000-b49db000 r--p 00019000 08:11 50788      /usr/lib/gio/modules/libgvfsdbus.so
b49db000-b49dc000 rw-p 0001a000 08:11 50788      /usr/lib/gio/modules/libgvfsdbus.so
b49dc000-b4a12000 r-xp 00000000 08:11 137181     /lib/libdbus-1.so.3.4.0
b4a12000-b4a13000 r--p 00035000 08:11 137181     /lib/libdbus-1.so.3.4.0
b4a13000-b4a14000 rw-p 00036000 08:11 137181     /lib/libdbus-1.so.3.4.0
b4a14000-b4a26000 r-xp 00000000 08:11 30294      /usr/lib/libgvfscommon.so.0.0.0
b4a26000-b4a27000 r--p 00012000 08:11 30294      /usr/lib/libgvfscommon.so.0.0.0
b4a27000-b4a28000 rw-p 00013000 08:11 30294      /usr/lib/libgvfscommon.so.0.0.0
b4a29000-b4a38000 r-xp 00000000 08:11 2579       /lib/libbz2.so.1.0.4
b4a38000-b4a39000 r--p 0000f000 08:11 2579       /lib/libbz2.so.1.0.4
b4a39000-b4a3a000 rw-p 00010000 08:11 2579       /lib/libbz2.so.1.0.4
b4a3a000-b4a3b000 r-xp 00000000 08:11 12704      /usr/lib/gtk-2.0/2.10.0/loaders/svg_loader.so
b4a3b000-b4a3c000 r--p 00000000 08:11 12704      /usr/lib/gtk-2.0/2.10.0/loaders/svg_loader.so
b4a3c000-b4a3d000 rw-p 00001000 08:11 12704      /usr/lib/gtk-2.0/2.10.0/loaders/svg_loader.so
b4a3d000-b4a4c000 r-xp 00000000 08:11 34819      /usr/lib/gio/modules/libgioremote-volume-monitor.so
b4a4c000-b4a4d000 r--p 0000e000 08:11 34819      /usr/lib/gio/modules/libgioremote-volume-monitor.so
b4a4d000-b4a4e000 rw-p 0000f000 08:11 34819      /usr/lib/gio/modules/libgioremote-volume-monitor.so
b4a4e000-b4df5000 r--p 00000000 08:11 11611      /usr/share/icons/hicolor/icon-theme.cache
b4df5000-b4f75000 rw-s d3e08000 00:0f 7754       /dev/nvidia0
b4f75000-b50f5000 rw-s d3e08000 00:0f 7754       /dev/nvidia0
b50f5000-b5275000 rw-s d043c000 00:0f 7754       /dev/nvidia0
b5275000-b52d5000 rw-s 00000000 00:09 11993115   /SYSV00000000 (deleted)
b5326000-b53a7000 rw-p b5326000 00:00 0 
b53a7000-b53a8000 rw-s 00000000 00:09 11960346   /SYSV00000000 (deleted)
b53a8000-b53a9000 rw-s 00000000 00:09 11927577   /SYSV00000000 (deleted)
b53ab000-b53ac000 r--s 00000000 08:11 26119      /home/kev/.local/share/mime/mime.cache
b53ac000-b53ad000 rw-s 00000000 00:09 11894808   /SYSV00000000 (deleted)
b53ad000-b54ad000 rw-s e0114000 00:0f 7754       /dev/nvidia0
b54ad000-b54ae000 rw-s d3f8c000 00:0f 7754       /dev/nvidia0
b54ae000-b54af000 rw-s 1eaee000 00:0f 7754       /dev/nvidia0
b54af000-b54b0000 rw-s 1eaed000 00:0f 7754       /dev/nvidia0
b54b0000-b54b1000 rw-s de820000 00:0f 7754       /dev/nvidia0
b54b1000-b55b3000 rw-s e0011000 00:0f 7754       /dev/nvidia0
b55f4000-b5657000 rw-p 00000000 00:0f 743        /dev/zero
b5657000-b5a8f000 rw-s d0000000 00:0f 7754       /dev/nvidia0
b5a8f000-b5ab9000 rw-s 00000000 00:09 0          /SYSV00000000 (deleted)
b5ab9000-b5b19000 rw-s 00000000 00:09 11862039   /SYSV00000000 (deleted)
b5b19000-b5bb1000 r--p 00000000 08:11 42100      /usr/share/fonts/truetype/ttf-dejavu/DejaVuSans.ttf
b5bb1000-b5bb3000 r-xp 00000000 08:11 18012      /usr/lib/pango/1.6.0/modules/pango-basic-fc.so
b5bb3000-b5bb4000 r--p 00001000 08:11 18012      /usr/lib/pango/1.6.0/modules/pango-basic-fc.so
b5bb4000-b5bb5000 rw-p 00002000 08:11 18012      /usr/lib/pango/1.6.0/modules/pango-basic-fc.so
b5bb5000-b5bbb000 r--s 00000000 08:11 107224     /var/cache/fontconfig/945677eb7aeaf62f1d50efc3fb3ec7d8-x86.cache-2
b5bbb000-b5bbe000 r--s 00000000 08:11 107233     /var/cache/fontconfig/e383d7ea5fbe662a33d9b44caf393297-x86.cache-2
b5bbe000-b5bc1000 r--s 00000000 08:11 117703     /var/cache/fontconfig/6eb3985aa4124903f6ff08ba781cd364-x86.cache-2
b5bc1000-b5bc2000 r--s 00000000 08:11 107219     /var/cache/fontconfig/4c73fe0c47614734b17d736dbde7580a-x86.cache-2
b5bc2000-b5bc5000 r--s 00000000 08:11 107225     /var/cache/fontconfig/a755afe4a08bf5b97852ceb7400b47bc-x86.cache-2
b5bc5000-b5bcc000 r--s 00000000 08:11 126177     /var/cache/fontconfig/6d41288fd70b0be22e8c3a91e032eec0-x86.cache-2
b5bcc000-b5bcf000 r--s 00000000 08:11 107231     /var/cache/fontconfig/de156ccd2eddbdc19d37a45b8b2aac9c-x86.cache-2
b5bcf000-b5bd7000 r--s 00000000 08:11 107234     /var/cache/fontconfig/e3de0de479f42330eadf588a55fb5bf4-x86.cache-2
b5bd7000-b5be2000 r--s 00000000 08:11 107214     /var/cache/fontconfig/0f34bcd4b6ee430af32735b75db7f02b-x86.cache-2
b5be2000-b5be4000 r--s 00000000 08:11 107230     /var/cache/fontconfig/ddd4086aec35a5275babba44bb759c3c-x86.cache-2
b5be4000-b5be5000 r--s 00000000 08:11 107217     /var/cache/fontconfig/4794a0821666d79190d59a36cb4f44b5-x86.cache-2
b5be5000-b5c07000 r--s 00000000 08:11 122586     /var/cache/fontconfig/365b55f210c0a22e9a19e35191240f32-x86.cache-2
b5c07000-b5c0e000 r--s 00000000 08:11 107228     /var/cache/fontconfig/d52a8644073d54c13679302ca1180695-x86.cache-2
b5c0e000-b5c14000 r--s 00000000 08:11 107213     /var/cache/fontconfig/089dead882dea3570ffc31a9898cfb69-x86.cache-2
b5c14000-b5c1b000 r--s 00000000 08:11 120311     /var/cache/fontconfig/e13b20fdb08344e0e664864cc2ede53d-x86.cache-2
b5c1b000-b5c1d000 r--s 00000000 08:11 122587     /var/cache/fontconfig/7ef2298fde41cc6eeb7af42e48b7d293-x86.cache-2
b5c1d000-b5c21000 r--s 00000000 08:11 35395      /home/kev/.fontconfig/7d19654197fba6a1bdf14444e1602296-x86.cache-2
b5c21000-b5c22000 r-xp 00000000 08:11 28280      /usr/lib/mdp/mdp_render_super_eagle.so
b5c22000-b5c23000 rw-p 00000000 08:11 28280      /usr/lib/mdp/mdp_render_super_eagle.so
b5c23000-b5c24000 r-xp 00000000 08:11 28284      /usr/lib/mdp/mdp_render_super_2xsai.so
b5c24000-b5c25000 rw-p 00001000 08:11 28284      /usr/lib/mdp/mdp_render_super_2xsai.so
b5c25000-b5c26000 r-xp 00000000 08:11 28278      /usr/lib/mdp/mdp_render_scanline_50.so
b5c26000-b5c27000 rw-p 00000000 08:11 28278      /usr/lib/mdp/mdp_render_scanline_50.so
b5c27000-b5c28000 r-xp 00000000 08:11 28301      /usr/lib/mdp/mdp_render_scanline_25.so
b5c28000-b5c29000 rw-p 00001000 08:11 28301      /usr/lib/mdp/mdp_render_scanline_25.so
b5c29000-b5c2a000 r-xp 00000000 08:11 26928      /usr/lib/mdp/mdp_render_scanline.so
b5c2a000-b5c2b000 rw-p 00000000 08:11 26928      /usr/lib/mdp/mdp_render_scanline.so
b5c2b000-b5c2e000 r-xp 00000000 08:11 26292      /usr/lib/mdp/mdp_render_scale4x.so
b5c2e000-b5c2f000 rw-p 00002000 08:11 26292      /usr/lib/mdp/mdp_render_scale4x.so
b5c2f000-b5c31000 r-xp 00000000 08:11 26861      /usr/lib/mdp/mdp_render_scale3x.so
b5c31000-b5c32000 rw-p 00001000 08:11 26861      /usr/lib/mdp/mdp_render_scale3x.so
b5c32000-b5c34000 r-xp 00000000 08:11 27260      /usr/lib/mdp/mdp_render_scale2x.so
b5c34000-b5c35000 rw-p 00001000 08:11 27260      /usr/lib/mdp/mdp_render_scale2x.so
b5c35000-b5c36000 r-xp 00000000 08:11 28275      /usr/lib/mdp/mdp_render_interpolated_scanline_50.so
b5c36000-b5c37000 rw-p 00001000 08:11 28275      /usr/lib/mgens:1:gens_sighandler(): Signal 6 (SIGABRT) received. Shutting down.

The custom resolution settings worked fine for me in milestone 6. But here it crashes if I put in anything other than the pre-defined OpenGL resolutions that are already listed in the options menu.

Other than those two problems, everything else seems to be working pretty well so far.

**GerbilSoft** · July 29th, 2009

Originally Posted by mocha

Do you still use the site http://info.sonicretro.org/Gens/GS? I just happened to come across this post by accident but was always trying to follow the development of gens at the sonicretro site.

I haven't updated the Gens/GS page on Sonic Retro yet, since this is a preview release. It will probably be updated sometime later this week.

Originally Posted by mister_k81

Code:

*** stack smashing detected ***: gens terminated

I reproduced this on my local system using the debug build, which has stack smashing prevention enabled. Seems like something's wrong with the OpenGL resolution dialog. I'll take a look at it and try to fix it.

EDIT: Fixed in commit 2d86a7ff4a1cdc594c6deaa961a9bdd56eb82402: http://gs_server.gerbilsoft.ddns.inf...de785849b66c80

**BigSilly** · July 29th, 2009

Same here. First I deleted the .gens folder as mentioned above, then tried to set a custom resolution of 1440x900 for my monitor, but it crashed with

Code:

Gens/GS has crashed with Signal 6.
SIGABRT: Aborted.

And now I get that whenever I start it. Hope this helps.

**wingnux** · July 29th, 2009

Thank you very much!! =)

**GerbilSoft** · July 29th, 2009

I fixed the problem. If you're compiling from source, you can apply this patch:

Code:

commit 2d86a7ff4a1cdc594c6deaa961a9bdd56eb82402
Author: David Korth <gerbilsoft@verizon.net>
Date:   Wed Jul 29 04:18:21 2009 -0400

    [GTK+] gens_window_sync.cpp: Fixed an off-by-one in Sync_Gens_Window_GraphicsMenu().
    
    If a custom resolution was set, the custom resolution code ended up writing
    past the end of sCustomRes[], resulting in a stack smash.
    
    This bug was reported by mister_k81 on the Ubuntu Forums:
    http://ubuntuforums.org/showpost.php?p=7696449&postcount=3

diff --git a/src/gens/ui/gtk/gens/gens_window_sync.cpp b/src/gens/ui/gtk/gens/gens_window_sync.cpp
index e89bda1..7924169 100644
--- a/src/gens/ui/gtk/gens/gens_window_sync.cpp
+++ b/src/gens/ui/gtk/gens/gens_window_sync.cpp
@@ -303,7 +303,7 @@ void Sync_Gens_Window_GraphicsMenu(void)
 		// Custom resolution. Set the text.
 		char sCustomRes[32];
 		snprintf(sCustomRes, sizeof(sCustomRes), "Custom... (%dx%d)", Video.GL.width, Video.GL.height);
-		sCustomRes[sizeof(sCustomRes)] = 0x00;
+		sCustomRes[sizeof(sCustomRes)-1] = 0x00;
 		gtk_label_set_text(GTK_LABEL(gtk_bin_get_child(GTK_BIN(mnuGLResCustom))), sCustomRes);
 	}
 	else

**wingnux** · July 29th, 2009

It crashes on my system when I switch to fullscreen while using the sdl+opengl backend. When I switch to the SDL backend it runs just fine but I can't get any filter to work on fullscreen =/

Here's the error message:

Gens/GS has crashed with Signal 11.
SIGSEGV: Segmentation fault.

I'm running it on Ubuntu Jaunty 32bit, nVIDIA 8800GS card with the latest beta drivers installed and compiz-fusion running.

**spcwingo** · July 29th, 2009

Thanks for this...running great with SDL backend on my Athlon XP/GeForce 6200 (with Nvidia 173 driver) setup.

**GerbilSoft** · July 29th, 2009

Originally Posted by wingnux

It crashes on my system when I switch to fullscreen while using the sdl+opengl backend. When I switch to the SDL backend it runs just fine but I can't get any filter to work on fullscreen =/

Here's the error message:

I'm running it on Ubuntu Jaunty 32bit, nVIDIA 8800GS card with the latest beta drivers installed and compiz-fusion running.

Can you try to get a backtrace with gdb? (You might have to recompile with debugging symbols enabled.)

Also, try setting the internal color depth to 16-bit. I've noticed some issues with 32-bit OpenGL surfaces on my system in fullscreen. [Graphics, Bits per pixel, 16 (565)]

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