mirror of
https://github.com/Relintai/sdl2_frt.git
synced 2024-12-20 22:16:49 +01:00
4e9c9fce13
Mark Logan 2015-08-24 15:57:50 UTC
In SDL_windowsopengles.c, WIN_GLES_SetSwapInterval is as follows:
WIN_GLES_SetSwapInterval(_THIS, int interval)
{
/* FIXME: This should call SDL_EGL_SetSwapInterval, but ANGLE has a bug that prevents this
* from working if we do (the window contents freeze and don't swap properly). So, we ignore
* the request for now.
*/
SDL_Log("WARNING: Ignoring SDL_GL_SetSwapInterval call due to ANGLE bug");
return 0;
}
With a recent version of ANGLE (early July) calling SDL_EGL_SetSwapInterval with a D3D11 backend appears to work just fine. I am working on testing this with D3D9.
--
Alex Szpakowski
I found the bug, it was fixed in 2013. https://bugs.chromium.org/p/angleproject/issues/detail?id=481
In my opinion it should be safe to unconditionally use SetSwapInterval now. Anyone who encounters the bug should update their ANGLE to a version less than 3 years old, especially since they'd be using a SDL version that's 3+ years newer than their ANGLE version.
50 lines
1.9 KiB
C
50 lines
1.9 KiB
C
/*
|
|
Simple DirectMedia Layer
|
|
Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
|
|
|
|
This software is provided 'as-is', without any express or implied
|
|
warranty. In no event will the authors be held liable for any damages
|
|
arising from the use of this software.
|
|
|
|
Permission is granted to anyone to use this software for any purpose,
|
|
including commercial applications, and to alter it and redistribute it
|
|
freely, subject to the following restrictions:
|
|
|
|
1. The origin of this software must not be misrepresented; you must not
|
|
claim that you wrote the original software. If you use this software
|
|
in a product, an acknowledgment in the product documentation would be
|
|
appreciated but is not required.
|
|
2. Altered source versions must be plainly marked as such, and must not be
|
|
misrepresented as being the original software.
|
|
3. This notice may not be removed or altered from any source distribution.
|
|
*/
|
|
#include "../../SDL_internal.h"
|
|
|
|
#ifndef _SDL_winopengles_h
|
|
#define _SDL_winopengles_h
|
|
|
|
#if SDL_VIDEO_OPENGL_EGL
|
|
|
|
#include "../SDL_sysvideo.h"
|
|
#include "../SDL_egl_c.h"
|
|
|
|
/* OpenGLES functions */
|
|
#define WIN_GLES_GetAttribute SDL_EGL_GetAttribute
|
|
#define WIN_GLES_GetProcAddress SDL_EGL_GetProcAddress
|
|
#define WIN_GLES_UnloadLibrary SDL_EGL_UnloadLibrary
|
|
#define WIN_GLES_GetSwapInterval SDL_EGL_GetSwapInterval
|
|
#define WIN_GLES_SetSwapInterval SDL_EGL_SetSwapInterval
|
|
|
|
extern int WIN_GLES_LoadLibrary(_THIS, const char *path);
|
|
extern SDL_GLContext WIN_GLES_CreateContext(_THIS, SDL_Window * window);
|
|
extern int WIN_GLES_SwapWindow(_THIS, SDL_Window * window);
|
|
extern int WIN_GLES_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context);
|
|
extern void WIN_GLES_DeleteContext(_THIS, SDL_GLContext context);
|
|
extern int WIN_GLES_SetupWindow(_THIS, SDL_Window * window);
|
|
|
|
#endif /* SDL_VIDEO_OPENGL_EGL */
|
|
|
|
#endif /* _SDL_winopengles_h */
|
|
|
|
/* vi: set ts=4 sw=4 expandtab: */
|