If "glFramebufferTexture2D()" fails on old drivers the Vector is empty.
Don't allow to read from empty Vector (NULL pointer).
(cherry picked from commit 7b8fe97888)
If ARB_framebuffer_object is not supported, try to fall-back to
EXT_framebuffer_object if present.
In current version of godot, the way framebuffers are used is backward
compatible with the older EXT_framebuffer_object extension.
Fixes#6591
Done with SuperUserNameMan
(cherry picked from commit a27fafb273)
The macro USE_LIGHT_SHADOW_COLOR actually was being defined when the shader used SHADOW (the output shadow color), not the shadow color set for the light so it's better named USE_OUTPUT_SHADOW_COLOR. In 3D there's not that difference but renaming as well for consistency.
(cherry picked from commit b69e422af9)
The engine will still segfault, but the error message should be displayed by the
OS in a blocking manner, so that it will only crash once users have acknowledged
the error dialog.
Closes#1162.
The only differences we have with the upstream tarball are marked with
`// -GODOT-` comments for clarity. The changes we currently have are
just some defines for cross-platform configuration, and could likely be
moved to the SCons buildsystem (ideally in a sub-environment to avoid
having RtAudio-specific defines pollute the whole build log).
One change for WinRT was not kept, if it is needed it should ideally be
integrated upstream:
```
#if defined(__WINDOWS_DS__) || defined(__WINDOWS_ASIO__) || defined(__WINDOWS_WASAPI__)
-#ifdef WINRT_ENABLED
- #define MUTEX_INITIALIZE(A) InitializeCriticalSectionEx(A, 0, 0)
-#else
#define MUTEX_INITIALIZE(A) InitializeCriticalSection(A)
-#endif
```
Multi-character character constants are implementation defined,
and therefore they are risky to use for use when trying to be compatible
with so many different platforms. Fixes#2540.
Warning: libpng 1.6 is strict about iCCp chunks being incorrect,
solution is to fix the profile. On *nix ImageMagicks "convert" works
on windows optiPNG.
- prevent audio resampler errors when number of channels is 0,
- don't check for 'audio_done' when there is no audio data.
(cherry picked from commit 763b29f34e)
This removes a custom redefinition of glewGetProcAddress,
which was apparently necessary for older Macs with buggy OpenGL
(see #5087).
The added source files are as provided in the upstream tarball.
This allows us not to have to hack our definitions in the upstream files,
making it easier to upgrade to newer versions in the future.
For the include paths to work, the headers are moved to a GL subfolder to
match their upstream location.
