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Handle error return value for SDL_GetSwapInterval

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This commit is contained in:
Sylvain Becker
2023-01-01 17:20:41 +01:00
committed by GitHub
parent a515f51ac0
commit 8a13533949
7 changed files with 68 additions and 17 deletions
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21
src/render/opengl/SDL_render_gl.c
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@@ -1651,6 +1651,7 @@ static int GL_UnbindTexture(SDL_Renderer *renderer, SDL_Texture *texture)
static int GL_SetVSync(SDL_Renderer *renderer, const int vsync)
{
int retval;
int interval = 0;
if (vsync) {
retval = SDL_GL_SetSwapInterval(1);
} else {
@@ -1659,7 +1660,13 @@ static int GL_SetVSync(SDL_Renderer *renderer, const int vsync)
if (retval != 0) {
return retval;
}
if (SDL_GL_GetSwapInterval() > 0) {
retval = SDL_GL_GetSwapInterval(&interval);
if (retval < 0) {
return retval;
}
if (interval > 0) {
renderer->info.flags |= SDL_RENDERER_PRESENTVSYNC;
} else {
renderer->info.flags &= ~SDL_RENDERER_PRESENTVSYNC;
@@ -1804,8 +1811,16 @@ static SDL_Renderer *GL_CreateRenderer(SDL_Window *window, Uint32 flags)
} else {
SDL_GL_SetSwapInterval(0);
}
if (SDL_GL_GetSwapInterval() > 0) {
renderer->info.flags |= SDL_RENDERER_PRESENTVSYNC;
{
int interval = 0;
if (SDL_GL_GetSwapInterval(&interval) < 0) {
/* Error */
} else {
if (interval > 0) {
renderer->info.flags |= SDL_RENDERER_PRESENTVSYNC;
}
}
}
/* Check for debug output support */