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libretro / scummvm

ScummVM main repository
https://www.scummvm.org
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Request: allow building with chosen GL/GLES flags #57

Closed cmitu closed 2 months ago

cmitu commented 3 months ago

Hi,

the recently added OpenGL HW renderer option and corresponding build flags are great for 3D games in ScummVM. One thing that could be improved would be the selection of which HW renderer context to be requested/used by the core. Right now, if I'm reading correctly the libretro backend Makefile, the choice is dictated by the platfom parameter passed on to make.

It would be beneficial to allow overriding of the _HAVEGL flags so that for platforms unknown/not configured in the Makefile the correct HW renderer can be selected during build. I.e. to allow building for a Raspberry Pi5/Orange Pi5 with make HAVE_MT32=1 HAVE_OPENGLES2 when RetroArch is built also with GLES3/GLES2 support.

spleen1981 commented 2 months ago

would https://github.com/libretro/scummvm/commit/a89a0a986eb6249307df19e61f662a7c78d6a053 do the job?

cmitu commented 2 months ago

@spleen1981 Yes, I think that's ok. I'm building now with FORCE_OPENGLES2=1 and OpenGLES2 is used during the build, whereas before it was defaulting to OpenGL (inherited from the unix 64bit platform). Thank you for the changes, when they're added to the master branch, then I'll integrate the build options into our package script.

spleen1981 commented 2 months ago

https://github.com/libretro/scummvm/commit/3df20dd9c6d2d9bba7e5af221c8f3ace53b1cd4f merged to master