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Properly reset context attributes, if OpenGL3 context failed to create

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This commit is contained in:
Jupeyy 2018-08-02 20:52:51 +02:00
parent d7bb03ee19
commit 7ce29e7a1a
1 changed files with 21 additions and 8 deletions
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29
src/engine/client/backend_sdl.cpp
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@ -2210,19 +2210,32 @@ int CGraphicsBackend_SDL_OpenGL::Init(const char *pName, int *Screen, int *pWidt
SDL_ClearError();
const char *pErr = NULL;
//query default values, since they are platform dependent
// Query default values, since they are platform dependent
static bool s_InitDefaultParams = false;
static int s_SDLGLContextProfileMask, s_SDLGLContextMajorVersion, s_SDLGLContextMinorVersion;
static bool s_TriedOpenGL3Context = false;
if(!s_InitDefaultParams)
{
SDL_GL_GetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, &s_SDLGLContextProfileMask);
SDL_GL_GetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, &s_SDLGLContextMajorVersion);
SDL_GL_GetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, &s_SDLGLContextMinorVersion);
s_InitDefaultParams = true;
}
// if OpenGL3 context was tried to be created, but failed, we have to restore the old context attributes
if(s_TriedOpenGL3Context && !g_Config.m_GfxOpenGL3) {
s_TriedOpenGL3Context = false;
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, s_SDLGLContextProfileMask);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, s_SDLGLContextMajorVersion);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, s_SDLGLContextMinorVersion);
}
m_UseOpenGL3_3 = false;
if(g_Config.m_GfxOpenGL3)
{
if(!s_InitDefaultParams)
{
SDL_GL_GetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, &s_SDLGLContextProfileMask);
SDL_GL_GetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, &s_SDLGLContextMajorVersion);
SDL_GL_GetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, &s_SDLGLContextMinorVersion);
s_InitDefaultParams = true;
}
s_TriedOpenGL3Context = true;
if(SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE) == 0)
{