This could be an 'optimisation' that SDL2 makes to reduce energy consumption. Or perhaps it is related to V-sync. All I know for sure is that it is, and always has been, extremely annoying. Yes, you can't see the emulation when the window is minimised, but you sure can hear it.

Hi if can possible add appimage will be great

thanks

Clownmdemu-frontend currently stores and loads configuration files in the current working directory instead of a sane shared path (e.g. %AppData%\Clownmdemu on Windows or ~/.config/Clownmdemu on Linux or just the directory it was compiled in).

If you add clownmdemu-frontend to PATH on either OS and invoke it from CLI like so ...

clownmdemu-frontend rom.bin

... it leads to a few side effects:

1. clownmdemu-frontend spams every working directory with 2 .ini files:
   • clownmdemu-frontend.ini
   • clownmdemu-frontend-imgui.ini
2. Configuration files are re-created every time, which means they aren't persistent and don't have a single source of truth.

It took me a few invocations of Clownmdemu from various directories to get my entire work tree spammed like so:

This is the reason most of the programs store configuration files in a shared directory instead of the current working one.

It seems that the first frame in which you hold (or let go of) the reverse button still goes forward, and the first frame in which you let go of the reverse button still goes backwards. This is best observed with the frame-advance function, though I think it happens regardless of whether you pause emulation or not.

Hi, I've been following the progress of this project for the past few months now and I've only just attempted to carry out a build! The following following errors were encountered.

CDReader

[ 48%] Building CXX object CMakeFiles/clownmdemu-frontend.dir/cd-reader.cpp.o
In file included from /home/manderc3/stuff/code/clownmdemu-frontend/cd-reader.cpp:1:
/home/manderc3/stuff/code/clownmdemu-frontend/cd-reader.h:23:14: error: extra qualification ‘CDReader::’ on member ‘Close’ [-fpermissive]
   23 |         void CDReader::Close() { stream = nullptr; }
      |              ^~~~~~~~
/home/manderc3/stuff/code/clownmdemu-frontend/cd-reader.h:24:14: error: extra qualification ‘CDReader::’ on member ‘IsOpen’ [-fpermissive]
   24 |         bool CDReader::IsOpen() const { return stream.get() != nullptr; }
      |              ^~~~~~~~
/home/manderc3/stuff/code/clownmdemu-frontend/cd-reader.h:25:14: error: extra qualification ‘CDReader::’ on member ‘SeekToSector’ [-fpermissive]
   25 |         void CDReader::SeekToSector(cc_u32f sector_index);
      |              ^~~~~~~~
/home/manderc3/stuff/code/clownmdemu-frontend/cd-reader.h:26:16: error: extra qualification ‘CDReader::’ on member ‘ReadSector’ [-fpermissive]
   26 |         Sector CDReader::ReadSector();
      |                ^~~~~~~~
make[2]: *** [CMakeFiles/clownmdemu-frontend.dir/build.make:118: CMakeFiles/clownmdemu-frontend.dir/cd-reader.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:126: CMakeFiles/clownmdemu-frontend.dir/all] Error 2
make: *** [Makefile:91: all] Error 2

Removing CDReader:: from the declaration of the affected member functions gets me past the errors.

SDL_HINT_WINDOWS_DPI_SCALING

[ 68%] Building CXX object CMakeFiles/clownmdemu-frontend.dir/frontend.cpp.o
/home/manderc3/stuff/code/clownmdemu-frontend/frontend.cpp: In function ‘bool Frontend::Initialise(int, char**, const FrameRateCallback&)’:
/home/manderc3/stuff/code/clownmdemu-frontend/frontend.cpp:998:21: error: ‘SDL_HINT_WINDOWS_DPI_SCALING’ was not declared in this scope
  998 |         SDL_SetHint(SDL_HINT_WINDOWS_DPI_SCALING, "1");
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
make[2]: *** [CMakeFiles/clownmdemu-frontend.dir/build.make:286: CMakeFiles/clownmdemu-frontend.dir/frontend.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:126: CMakeFiles/clownmdemu-frontend.dir/all] Error 2
make: *** [Makefile:91: all] Error 2

SDL_HINT_WINDOWS_DPI_SCALING is a Windows specific hint, any reference to it should be wrapped within a suitable preprocessor guard.

Happy to submit a pull request to address the above issues. :)

Environment Details

• Commit: b45d72c (tag v0.6)
• OS: Ubuntu 22.04
• Arch: x86-64
• CMake Version: 3.26
• Compiler: gcc/g++ 11.4.0

Build steps

Checkout Reposistory

git clone https://github.com/Clownacy/clownmdemu-frontend

Recursive Init of Submodules

git submodule update --init --recursive

Build

mkdir build
cd build
cmake ..
make

An example, from Sonic Classic Heroes (note that this was taken from the demo mode, as the game crashes upon reaching the main menu):

Note that the shield graphics in the sprite viewers do not match what's on-screen. Also, the timer is a frame ahead.

While I first noticed this with the sprite debuggers, the VRAM, CRAM, Plane A, Plane B, and Window Plane debuggers have this problem too. I have no idea if non-VDP debuggers are affected.

Please add an icon to EXE file.

Something seems to be wrong with the plane viewer in that tile indexes do not present the correct values:

The "A" I highlighted should be described as tile 1681/0x691, palette line 2, but is described as tile 0/0x0, palette line 0. It's not just that they're blank; I've also noticed instances elsewhere in which the X-flip, Y-flip, and priority bits are also misreported.

The game has inacurrate sound, specially the hit and kill sounds and some instruments.

When compared to a pixeled screenshot from a Megadrive, clownmdemu is brighter