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Android Build for MAME - Enabling bgfx Shaders #116829 02/06/20 08:33 PM
Joined: Jan 2020
Posts: 3
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Yash Anand Offline OP
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Y
Joined: Jan 2020
Posts: 3
Hello All,

I am trying to enable video bgfx for my Android buil of MAME on Ubuntu 18.04 but unfortunately there is a crash (shown below).
I have a reference board with HDMI out and am setting the mame.ini file with the settings from here and MAME documentation -
https://forums.launchbox-app.com/topic/33564-mame-bgfx-shaders-tutorial/
Using clang and have set the NDK/SDK paths.

video auto (software) is working fine. I would like to introduce some shaders and make the output look better.

So I have some doubts -
*************************** (multiplcation effect)
1. Can bgfx get enabled for Android?

2. It needs a backend to execute the same? I guess it is OpenGL? If yes then when I am trying to enable OpenGL with NO_OPENGL=0 MAME is not getting built (I hack the Makefile for this as the default for android-arm64 has NO_OPENGL=1)
/home/yash/Android/Sdk/ndk/21.0.6113669/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/lib/gcc/aarch64-linux-android/4.9.x/../../../../aarch64-linux-android/bin/ld: cannot find -lGL
clang++: error: linker command failed with exit code 1 (use -v to see invocation)

ON ANOTHER PLANE
+++++++++++++++++
3. I tried to use video OpenGL but because USE_OPENGL is not defined due to NO_OPENGL (different build) the system falls back to software mode (Video.cpp:242)
Invalid video value opengl; reverting to software
I know the documentation does not say so but the code speaks a different story...

#if (USE_OPENGL)
else if (strcmp(stemp, SDLOPTVAL_OPENGL) == 0)
video_config.mode = VIDEO_MODE_OPENGL;
#endif

4. The system folder in the device also does not have a LibGL.so and neither does the NDK (obviously that's the post). The stupid thought of downloading a bionic libGL.so came to my mind and trying to force link it but thought to ask for the right advice before I advent on the journey of insanity.

5. For bgfx enabling I have for testing manually copied the bgfx folder into a place in the device and then give that path in bgfx_path.


Any pointers wud be great help....

Pros - Highly Motivated for resolving this smile
Cons - New to Open Source, First ever Build in Open Source frown


CRASH REPORT for when video bgfx

2019-07-16 13:13:36.965 14064-14159/? V/SDL/APP: Available videodrivers:
2019-07-16 13:13:36.965 14064-14159/? V/SDL/APP: Android
2019-07-16 13:13:36.965 14064-14159/? V/SDL/APP: Current Videodriver: Android
2019-07-16 13:13:36.965 14064-14159/? V/SDL/APP: Display #0
2019-07-16 13:13:36.965 14064-14159/? V/SDL/APP: Renderdrivers:
2019-07-16 13:13:36.965 14064-14159/? V/SDL/APP: opengles2 (0x0)
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: opengles (0x0)
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: software (0x0)
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: Available audio drivers:
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: dummy
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: android
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: Build version: 0.216 (mame0216-dirty)
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: Build architecure:
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: Build defines 1:
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: SDLMAME_UNIX=1
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: SDLMAME_LINUX=1
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: Build defines 1:
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: LSB_FIRST=1
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: PTR64=1
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: MAME_NOASM=1
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: SDL/OpenGL defines:
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: SDL_COMPILEDVERSION=2005
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: USE_OPENGL=0
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: Compiler defines A:
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: __GNUC__=4
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: __GNUC_MINOR__=2
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: __GNUC_PATCHLEVEL__=1
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: __VERSION__="4.2.1 Compatible Android (5900059 based on r365631c) Clang 9.0.8 (https://android.googlesource.com/toolchain/llvm-project 207d7abc1a2abf3ef8d4301736d6a7ebc224a290)"
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: Compiler defines B:
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: __unix__=1
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: Compiler defines C:
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: Enter init_monitors
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: Adding monitor screen0 (1920 x 1080)
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: Leave init_monitors
2019-07-16 13:13:36.966 14064-14159/? V/SDL/APP: Enter sdlwindow_init
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: Hints:
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_FRAMEBUFFER_ACCELERATION (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_RENDER_DRIVER (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_RENDER_OPENGL_SHADERS (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_RENDER_SCALE_QUALITY (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_RENDER_VSYNC (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_VIDEO_X11_XVIDMODE (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_VIDEO_X11_XINERAMA (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_VIDEO_X11_XRANDR (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_GRAB_KEYBOARD (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_VIDEO_MINIMIZE_ON_FOCUS_LOSS (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_IOS_IDLE_TIMER_DISABLED (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_IOS_ORIENTATIONS (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_XINPUT_ENABLED (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_GAMECONTROLLERCONFIG (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_JOYSTICK_ALLOW_BACKGROUND_EVENTS (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_ALLOW_TOPMOST (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_TIMER_RESOLUTION (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_RENDER_DIRECT3D_THREADSAFE (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_VIDEO_ALLOW_SCREENSAVER (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_ACCELEROMETER_AS_JOYSTICK (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_MAC_CTRL_CLICK_EMULATE_RIGHT_CLICK (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_VIDEO_WIN_D3DCOMPILER (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_VIDEO_WINDOW_SHARE_PIXEL_FORMAT (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_VIDEO_MAC_FULLSCREEN_SPACES (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_MOUSE_RELATIVE_MODE_WARP (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_RENDER_DIRECT3D11_DEBUG (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_VIDEO_HIGHDPI_DISABLED (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_WINRT_PRIVACY_POLICY_URL (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_WINRT_PRIVACY_POLICY_LABEL (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: SDL_WINRT_HANDLE_BACK_BUTTON (NULL)
2019-07-16 13:13:36.967 14064-14159/? V/SDL/APP: Leave sdlwindow_init
2019-07-16 13:13:36.968 14064-14159/? V/SDL/APP: Enter sdl_info::create
2019-07-16 13:13:36.970 14064-14159/? V/SDL: getNativeSurface()
2019-07-16 13:13:36.971 14064-14159/? D/mali_winsys: EGLint new_window_surface(egl_winsys_display *, void *, EGLSurface, EGLConfig, egl_winsys_surface **, egl_color_buffer_format *, EGLBoolean) returns 0x3000

--------- beginning of crash
2019-07-16 13:13:36.974 14064-14160/? A/libc: Fatal signal 11 (SIGSEGV), code 1, fault addr 0x98 in tid 14160 (SDLThread), pid 14064 (rg.mamedev.mame)
2019-07-16 13:13:37.023 14163-14163/? I/crash_dump64: obtaining output fd from tombstoned, type: kDebuggerdTombstone
2019-07-16 13:13:37.024 406-406/? I//system/bin/tombstoned: received crash request for pid 14064
2019-07-16 13:13:37.026 14163-14163/? I/crash_dump64: performing dump of process 14064 (target tid = 14160)
2019-07-16 13:13:37.026 14163-14163/? A/DEBUG: *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
2019-07-16 13:13:37.026 14163-14163/? A/DEBUG: Revision: '0'
2019-07-16 13:13:37.026 14163-14163/? A/DEBUG: ABI: 'arm64'
2019-07-16 13:13:37.026 14163-14163/? A/DEBUG: pid: 14064, tid: 14160, name: SDLThread >>> org.mamedev.mame <<<
2019-07-16 13:13:37.026 14163-14163/? A/DEBUG: signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x98
2019-07-16 13:13:37.026 14163-14163/? A/DEBUG: Cause: null pointer dereference
2019-07-16 13:13:37.026 14163-14163/? A/DEBUG: x0 0000000000000000 x1 0000000000000780 x2 0000000000000438 x3 0000000000000001
2019-07-16 13:13:37.026 14163-14163/? A/DEBUG: x4 0000006f27d01d60 x5 0000006f27876510 x6 0000000000003026 x7 0000000003ba6fb2
2019-07-16 13:13:37.026 14163-14163/? A/DEBUG: x8 56dc3bcf91e0ef1c x9 56dc3bcf91e0ef1c x10 0000000000000000 x11 0000000000000001
2019-07-16 13:13:37.027 14163-14163/? A/DEBUG: x12 0000006f3b78c148 x13 0000000000000004 x14 000000000000308f x15 ffffffffffffffff
2019-07-16 13:13:37.027 14163-14163/? A/DEBUG: x16 0000006f2b6ab9a0 x17 0000006f3e116888 x18 0000000000000004 x19 0000000000000000
2019-07-16 13:13:37.027 14163-14163/? A/DEBUG: x20 0000000000000438 x21 0000000000000780 x22 0000000000000780 x23 0000006f3b7af000
2019-07-16 13:13:37.027 14163-14163/? A/DEBUG: x24 0000006f2afef42a x25 0000006f27d02588 x26 0000006f2ae76073 x27 0000006f2b90af58
2019-07-16 13:13:37.027 14163-14163/? A/DEBUG: x28 0000006f27d01fc0 x29 0000006f27d01f10 x30 0000006f2acd69c0
2019-07-16 13:13:37.027 14163-14163/? A/DEBUG: sp 0000006f27d01ef0 pc 0000006f3e1168a4 pstate 0000000060000000
2019-07-16 13:13:37.049 14163-14163/? A/DEBUG: backtrace:
2019-07-16 13:13:37.049 14163-14163/? A/DEBUG: #00 pc 00000000000148a4 /system/lib64/libandroid.so (ANativeWindow_setBuffersGeometry+28)
2019-07-16 13:13:37.049 14163-14163/? A/DEBUG: #01 pc 0000000002ed59bc /data/app/org.mamedev.mame-J9SVJLxhTvGUaAo6KrgXtg==/lib/arm64/libmain.so (bgfx::gl::GlContext::create(unsigned int, unsigned int)+500)
2019-07-16 13:13:37.049 14163-14163/? A/DEBUG: #02 pc 0000000002eba038 /data/app/org.mamedev.mame-J9SVJLxhTvGUaAo6KrgXtg==/lib/arm64/libmain.so (bgfx::gl::RendererContextGL::setRenderContextSize(unsigned int, unsigned int, unsigned int)+232)
2019-07-16 13:13:37.049 14163-14163/? A/DEBUG: #03 pc 0000000002ead430 /data/app/org.mamedev.mame-J9SVJLxhTvGUaAo6KrgXtg==/lib/arm64/libmain.so (bgfx::gl::RendererContextGL::init(bgfx::Init const&)+160)
2019-07-16 13:13:37.049 14163-14163/? A/DEBUG: #04 pc 0000000002eac9f0 /data/app/org.mamedev.mame-J9SVJLxhTvGUaAo6KrgXtg==/lib/arm64/libmain.so (bgfx::gl::rendererCreate(bgfx::Init const&)+100)
2019-07-16 13:13:37.049 14163-14163/? A/DEBUG: #05 pc 0000000002e97afc /data/app/org.mamedev.mame-J9SVJLxhTvGUaAo6KrgXtg==/lib/arm64/libmain.so (bgfx::rendererCreate(bgfx::Init const&)+584)
2019-07-16 13:13:37.049 14163-14163/? A/DEBUG: #06 pc 0000000002e98d90 /data/app/org.mamedev.mame-J9SVJLxhTvGUaAo6KrgXtg==/lib/arm64/libmain.so (bgfx::Context::rendererExecCommands(bgfx::CommandBuffer&)+4680)
2019-07-16 13:13:37.049 14163-14163/? A/DEBUG: #07 pc 0000000002e93f98 /data/app/org.mamedev.mame-J9SVJLxhTvGUaAo6KrgXtg==/lib/arm64/libmain.so (bgfx::Context::renderFrame(int)+212)
2019-07-16 13:13:37.049 14163-14163/? A/DEBUG: #08 pc 0000000002e93de8 /data/app/org.mamedev.mame-J9SVJLxhTvGUaAo6KrgXtg==/lib/arm64/libmain.so (bgfx::renderFrame(int)+48)
2019-07-16 13:13:37.049 14163-14163/? A/DEBUG: #09 pc 0000000002e95130 /data/app/org.mamedev.mame-J9SVJLxhTvGUaAo6KrgXtg==/lib/arm64/libmain.so (bgfx::Context::renderThread(bx::Thread*, void*)+12)
2019-07-16 13:13:37.049 14163-14163/? A/DEBUG: #10 pc 0000000002f13164 /data/app/org.mamedev.mame-J9SVJLxhTvGUaAo6KrgXtg==/lib/arm64/libmain.so (bx::ThreadInternal::threadFunc(void*)+36)
2019-07-16 13:13:37.049 14163-14163/? A/DEBUG: #11 pc 0000000000067d80 /system/lib64/libc.so (__pthread_start(void*)+36)
2019-07-16 13:13:37.049 14163-14163/? A/DEBUG: #12 pc 000000000001ec18 /system/lib64/libc.so (__start_thread+68)
2019-07-16 13:13:37.093 14164-14164/? I/sh: type=1400 audit(0.0:73): avc: denied { execute_no_trans } for path="/vendor/bin/toybox_vendor" dev="dm-1" ino=416 scontext=u:r:pwm_fan_autorun:s0 tcontext=u:object_r:vendor_toolbox_exec:s0 tclass=file permissive=1
2019-07-16 13:13:37.785 406-406/? E//system/bin/tombstoned: Tombstone written to: /data/tombstones/tombstone_39





I did a crash dump with ndk-stack of the tombstone data spit and got this
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

ndk-stack -sym ~/programs/mame/android-project/app/build/intermediates/jniLibs/debug/arm64-v8a -dump tombstone_39
********** Crash dump: **********
Build fingerprint: 'Android/nanopc_t4/nanopc-t4:8.1.0/OPM8.181005.003/144606:userdebug/test-keys'
#00 0x00000000000148a4 /system/lib64/libandroid.so (ANativeWindow_setBuffersGeometry+28)
#01 0x0000000002ed59bc /data/app/org.mamedev.mame-J9SVJLxhTvGUaAo6KrgXtg==/lib/arm64/libmain.so (bgfx::gl::GlContext::create(unsigned int, unsigned int)+500)
device_finder<samples_device, false>::device_finder(device_t&, char const*)
/home/yash/programs/mame/build/projects/sdl/mametiny/gmake-android-arm64/../../../../../src/emu/devfind.h:544:51
#02 0x0000000002eba038 /data/app/org.mamedev.mame-J9SVJLxhTvGUaAo6KrgXtg==/lib/arm64/libmain.so (bgfx::gl::RendererContextGL::setRenderContextSize(unsigned int, unsigned int, unsigned int)+232)
ym2610_write(void*, int, unsigned char)
/home/yash/programs/mame/build/projects/sdl/mametiny/gmake-android-arm64/../../../../../src/devices/sound/fm.cpp:3829:20
#03 0x0000000002ead430 /data/app/org.mamedev.mame-J9SVJLxhTvGUaAo6KrgXtg==/lib/arm64/libmain.so (bgfx::gl::RendererContextGL::init(bgfx::Init const&)+160)
dac_device<dac_code_twos_complement<8u> >::device_start()
/home/yash/programs/mame/build/projects/sdl/mametiny/gmake-android-arm64/../../../../../src/devices/sound/dac.h:193:3
#04 0x0000000002eac9f0 /data/app/org.mamedev.mame-J9SVJLxhTvGUaAo6KrgXtg==/lib/arm64/libmain.so (bgfx::gl::rendererCreate(bgfx::Init const&)+100)
non-virtual thunk to dac_8bit_r2r_device::~dac_8bit_r2r_device()
??:0:0
#05 0x0000000002e97afc /data/app/org.mamedev.mame-J9SVJLxhTvGUaAo6KrgXtg==/lib/arm64/libmain.so (bgfx::rendererCreate(bgfx::Init const&)+584)
std::__ndk1::unique_ptr<ad7521_device, std::__ndk1::default_delete<ad7521_device> >::release()
/home/yash/Android/Sdk/ndk/21.0.6113669/sources/cxx-stl/llvm-libc++/include/memory:2584:20
#06 0x0000000002e98d90 /data/app/org.mamedev.mame-J9SVJLxhTvGUaAo6KrgXtg==/lib/arm64/libmain.so (bgfx::Context::rendererExecCommands(bgfx::CommandBuffer&)+4680)
std::__ndk1::unique_ptr<ad7528_device, std::__ndk1::default_delete<ad7528_device> >::release()
/home/yash/Android/Sdk/ndk/21.0.6113669/sources/cxx-stl/llvm-libc++/include/memory:2583:26
#07 0x0000000002e93f98 /data/app/org.mamedev.mame-J9SVJLxhTvGUaAo6KrgXtg==/lib/arm64/libmain.so (bgfx::Context::renderFrame(int)+212)
object_finder_base<mc3410_device, true>::end_configuration()
/home/yash/programs/mame/build/projects/sdl/mametiny/gmake-android-arm64/../../../../../src/emu/devfind.h:465:0
#08 0x0000000002e93de8 /data/app/org.mamedev.mame-J9SVJLxhTvGUaAo6KrgXtg==/lib/arm64/libmain.so (bgfx::renderFrame(int)+48)
device_finder<mc3408_device, false>::~device_finder()
/home/yash/programs/mame/build/projects/sdl/mametiny/gmake-android-arm64/../../../../../src/devices/sound/dac.h:282:1
#09 0x0000000002e95130 /data/app/org.mamedev.mame-J9SVJLxhTvGUaAo6KrgXtg==/lib/arm64/libmain.so (bgfx::Context::renderThread(bx::Thread*, void*)+12)
object_finder_base<dac_6bit_r2r_device, true>::operator->() const
/home/yash/programs/mame/build/projects/sdl/mametiny/gmake-android-arm64/../../../../../src/emu/devfind.h:491:0
#10 0x0000000002f13164 /data/app/org.mamedev.mame-J9SVJLxhTvGUaAo6KrgXtg==/lib/arm64/libmain.so (bx::ThreadInternal::threadFunc(void*)+36)
util::basic_ovectorstream<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> >::off_type util::stream_format<util::basic_ovectorstream<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> >, char [66]>(util::basic_ovectorstream<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> >&, char const (&) [66])
/home/yash/programs/mame/build/projects/sdl/mametiny/gmake-android-arm64/../../../../../src/lib/util/strformat.h:1662:9
#11 0x0000000000067d80 /system/lib64/libc.so (__pthread_start(void*)+36)
#12 0x000000000001ec18 /system/lib64/libc.so (__start_thread+68)
Crash dump is completed


++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Thanks for reading.

Regards
Yash

Re: Android Build for MAME - Enabling bgfx Shaders [Re: Yash Anand] #116830 02/06/20 08:46 PM
Joined: Mar 2001
Posts: 16,445
R
R. Belmont Online Content
Very Senior Member
Online Content
Very Senior Member
R
Joined: Mar 2001
Posts: 16,445
I believe Android uses OpenGL ES rather than plain OpenGL. BGFX and SDL2 both support that, but I don't know if anyone's gotten it to work with MAME.

Re: Android Build for MAME - Enabling bgfx Shaders [Re: R. Belmont] #116831 02/07/20 01:31 AM
Joined: Jan 2020
Posts: 3
Y
Yash Anand Offline OP
Member
OP Offline
Member
Y
Joined: Jan 2020
Posts: 3
Thanks for the reply... OPenGL ES is getting loaded and I can see some commands running through...

Runing the command for libmain.so without the -lGL runs into rough weather but these functions are'nt supported in any of the libGLES*.so files in ~/Android/Sdk/ndk/21.0.6113669/platforms/android-24/arch-x86_64/usr/lib64 by running nm -C -A command

libGLESv1_CM.so
libGLESv2.so
libGLESv3.so

../../../../android/bin/arm64/Release/mame_tiny/libosd_sdl.a(drawogl.o): In function `renderer_ogl::draw(int)':
drawogl.cpp:(.text._ZN12renderer_ogl4drawEi+0x124): undefined reference to `glClearDepth'
drawogl.cpp:(.text._ZN12renderer_ogl4drawEi+0x24c): undefined reference to `glOrtho'
drawogl.cpp:(.text._ZN12renderer_ogl4drawEi+0x390): undefined reference to `glEnd'
drawogl.cpp:(.text._ZN12renderer_ogl4drawEi+0x3a0): undefined reference to `glEnd'
drawogl.cpp:(.text._ZN12renderer_ogl4drawEi+0x5b4): undefined reference to `glBegin'
drawogl.cpp:(.text._ZN12renderer_ogl4drawEi+0x5c8): undefined reference to `glVertex2f'
drawogl.cpp:(.text._ZN12renderer_ogl4drawEi+0x5d8): undefined reference to `glVertex2f'
drawogl.cpp:(.text._ZN12renderer_ogl4drawEi+0x5ec): undefined reference to `glVertex2f'
drawogl.cpp:(.text._ZN12renderer_ogl4drawEi+0x644): undefined reference to `glEnd'
../../../../android/bin/arm64/Release/mame_tiny/libosd_sdl.a(drawogl.o): In function `renderer_ogl::texture_mpass_flip(ogl_texture_info*, int)':
drawogl.cpp:(.text._ZN12renderer_ogl18texture_mpass_flipEP16ogl_texture_infoi+0x180): undefined reference to `glPopAttrib'
drawogl.cpp:(.text._ZN12renderer_ogl18texture_mpass_flipEP16ogl_texture_infoi+0x1ec): undefined reference to `glPushAttrib'
drawogl.cpp:(.text._ZN12renderer_ogl18texture_mpass_flipEP16ogl_texture_infoi+0x220): undefined reference to `glPopAttrib'

Re: Android Build for MAME - Enabling bgfx Shaders [Re: Yash Anand] #116832 02/07/20 02:45 AM
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R. Belmont Online Content
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Yeah, you need to disable MAME's built-in "-video OpenGL" renderer, it won't link on systems with only GLES. Add NO_OPENGL=1 to the make command line (and REGENIE=1 to regenerate the build files).

Re: Android Build for MAME - Enabling bgfx Shaders [Re: Yash Anand] #116833 02/07/20 01:45 PM
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Dullaron Offline
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MAME for Android is pain in the butt to deal with. Last time I mess with the builds that I compile from the official MAME source (Long time ago.) the touch screen menu after MAME load up doesn't work right. Also there is sounds issue for example Defender. I don't know those things gotten fix or not ever since then. Least Defender is playable at the time. smile


Windows 10 Pro 64-bit / Intel Core i5-4460 3.20 GHz / 8.00 GB RAM / AMD Radeon R9 200 Series
Re: Android Build for MAME - Enabling bgfx Shaders [Re: Yash Anand] #116850 02/10/20 11:51 AM
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Yash Anand Offline OP
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Thanks RB. Will keep working on these lines and updating the thread.
D - I am not planning to use touch... planning to use a joystick interface hence the touchy part of touch gets kind of resolved.

Guys keep sharing any recipe that you want me to try or if you find might be helpful to me.


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