Hello, I just updated to SDL3-3.2.28-2 and it worked fine. Thank you very much.
Sincerely Carlo Bramini. Il giorno mer 17 dic 2025 alle ore 12:50 Takashi Yano via Cygwin-apps <[email protected]> ha scritto: > > Hi Carlo, > > Thank you very much for the patch. > I'll apply your patch and re-release 3.2.28 as SDL3 3.2.28-2. > > Please test. > > On Tue, 16 Dec 2025 21:15:33 +0100 > "Carlo B. via Cygwin-apps" <[email protected]> wrote: > > Hello, > > > > this is a message for the maintainer of SDL3 package. > > I discovered that support for OpenGL was not working, so I did a check > > on that library. > > I found that there were few bugs: > > - cmake/macros.cmake was failing because CYGWIN uses DLLs like WIN32 > > and not .so files. > > - the names of the libraries into src/video/SDL_egl.c are wrong, so I > > fixed them with an additional test on SDL_PLATFORM_CYGWIN. > > - SDL_x11opengl.c uses libGL.so.1 instead of cygGL-1.dll, so a test on > > SDL_PLATFORM_CYGWIN is needed again for loading the right library. > > > > I attached the patch that needs to be appended to > > SDL3-3.2.28-1.src.patch for fixing these issues. > > BTW, I also suggest to add -DSDL_ALSA=OFF to CYGCMAKE_ARGS into > > SDL3.cygport, for removing the failure when CMake tries to detect > > ALSA. > > > > The fixes have been tested with TRX, an Open source re-implementation > > of Tomb Raider I and Tomb Raider II and it worked fine after applying > > these changes. > > > > I hope that you will find this useful. > > Sincerely, > > > > Carlo Bramini. > > > > --- origsrc/SDL3-3.2.28/cmake/macros.cmake 2025-01-14 > > 01:42:50.000000000 +0100 > > +++ src/SDL3-3.2.28/cmake/macros.cmake 2025-12-16 16:45:05.815201900 > > +0100 > > @@ -261,7 +261,7 @@ function(target_get_dynamic_library DEST > > endif() > > if(result) > > string(TOLOWER "${result}" result_lower) > > - if(WIN32 OR OS2) > > + if(WIN32 OR OS2 OR CYGWIN) > > if(NOT result_lower MATCHES ".*dll") > > message(FATAL_ERROR "\"${result}\" is not a .dll library") > > endif() > > --- origsrc/SDL3-3.2.28/src/video/SDL_egl.c 2025-09-22 > > 20:28:46.000000000 +0200 > > +++ src/SDL3-3.2.28/src/video/SDL_egl.c 2025-12-16 16:29:43.552213400 > > +0100 > > @@ -97,6 +97,14 @@ > > #define DEFAULT_OGL_ES_PVR "libGLES_CM.so" > > #define DEFAULT_OGL_ES "libGLESv1_CM.so" > > > > +#elif defined(SDL_PLATFORM_CYGWIN) > > +// CYGWIN > > +#define DEFAULT_OGL "cygGL-1.dll" > > +#define DEFAULT_EGL "cygEGL-1.dll" > > +#define DEFAULT_OGL_ES2 "cygGLESv2-2.dll" > > +#define DEFAULT_OGL_ES_PVR "cygGLES_CM-1.dll" > > +#define DEFAULT_OGL_ES "cygGLESv1_CM-1.dll" > > + > > --- origsrc/SDL3-3.2.28/src/video/x11/SDL_x11opengl.c 2025-01-01 > > 16:45:52.000000000 +0100 > > +++ src/SDL3-3.2.28/src/video/x11/SDL_x11opengl.c 2025-12-16 > > 16:20:08.032562900 +0100 > > @@ -40,6 +40,8 @@ > > #define DEFAULT_OPENGL "libGL.so" > > #elif defined(SDL_PLATFORM_MACOS) > > #define DEFAULT_OPENGL "/opt/X11/lib/libGL.1.dylib" > > +#elif defined(SDL_PLATFORM_CYGWIN) > > +#define DEFAULT_OPENGL "cygGL-1.dll" > > #else > > #define DEFAULT_OPENGL "libGL.so.1" > > #endif > > > -- > Takashi Yano <[email protected]>
