08414: When running game 0.247 on Mac OS X, it seems to default to a non accelerated, non OpenGL video driver.

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
08414	Core	Critical (emulator)	Always	Sep 9, 2022, 19:43	Sep 10, 2022, 18:44

Tester	star2root	View Status	Public	Platform	MAME (Self-compiled)
Assigned To		Resolution	Open	OS	MacOS X
Status [?]	Direction Needed			Driver
Version	0.247	Fixed in Version		Build	64-bit
		Fixed in Git Commit		Github Pull Request #

Summary	08414: When running game 0.247 on Mac OS X, it seems to default to a non accelerated, non OpenGL video driver.
Description	When running game 0.247 on Mac OS X, it seems to default to a non accelerated, non OpenGL video driver. Adding -video opengl -renderdriver opengl returns video performance to the previous levels observed with version 0.224. Without these command line switches added performance is so bad as to be totally unusable on a quad core i7 system.
Steps To Reproduce	Run mame with no options on an intel Mac OS X system. Performance is so slow the system will appear to have locked up at launch, but it is actually running VERY slowly.
Additional Information	Mame 0.247 seems to default to a non accelerated, non OpenGL video driver. Performance was normal on version 0.224. Other intervening versions have not been tested.
Github Commit

Flags	SDL specific
Regression Version
Affected Sets / Systems

Attached Files

No.20516 Tafoid Administrator Sep 9, 2022, 21:15	Has there been any hardware changes since the previous working version you reported 0.224? That is nearly 2 years ago. You mentioned it is self-compiled. It is entirely possible your issue might lie in OS or Driver updates/changes which may be acting adversely. Could you try a pre-packaged 0.247 trusted compiled from source to see if the same behavior happens? https://sdlmame.lngn.net/ https://sdlmame.lngn.net/2022/08/31/mame-0-247-released/
No.20524 star2root Viewer Sep 10, 2022, 00:17	I already tried two prebuilt binaries and got the same issue. No hardware changes, I ran 0.224 on the same hardware as 0.247 today and got the same result. If I pass the command line switches -video opengl -renderdriver opengl the problem goes away.
No.20525 star2root Viewer Sep 10, 2022, 00:19	Setting the OSD video and render drivers in the ini also works around the issue, but I have to do it for every system as well as the mame.ini.
No.20530 star2root Viewer Sep 10, 2022, 18:44	I have found this patch effective... --- src/osd/sdl/sdlmain.cpp 2022-09-09 16:14:06.000000000 -0400 +++ src/osd/sdl/sdlmain.cpp 2022-09-10 14:29:42.000000000 -0400 @@ -58,4 +58,5 @@ #elif defined(SDLMAME_MACOSX) #define INI_PATH "$HOME/Library/Application Support/APP_NAME;$HOME/.APP_NAME;.;ini" + #define USE_OPENGL 1 #else #define INI_PATH "$HOME/.APP_NAME;.;ini" @@ -126,4 +127,5 @@ #if USE_OPENGL { SDLOPTION_GL_LIB, SDLOPTVAL_GLLIB, core_options::option_type::STRING, "alternative libGL.so to use; 'auto' for system default" }, +#pragma message "enabling opengl" #endif @@ -353,4 +355,5 @@ #if USE_OPENGL video_options_add("opengl", nullptr); +#pragma message "adding opengl" #endif video_options_add("bgfx", nullptr); @@ -415,4 +418,10 @@ osd_setenv(SDLENV_VIDEODRIVER, stemp, 1); } +#ifdef SDLMAME_MACOSX + else { + osd_printf_verbose("Setting SDL videodriver '%s' ...\n", "opengl"); + options().set_value(OSDOPTION_VIDEO, "opengl", OPTION_PRIORITY_MAXIMUM); + } +#endif stemp = options().render_driver(); @@ -427,5 +436,5 @@ else { -#if defined(SDLMAME_WIN32) +#if defined(SDLMAME_WIN32) \|\| defined(SDLMAME_MACOSX) // OpenGL renderer has less issues with mode switching on windows osd_printf_verbose("Setting SDL renderdriver '%s' ...\n", "opengl");