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Codechange: [SDL2] Move FindStartupDisplay to its own function

This commit is contained in:
Patric Stout 2021-01-16 15:25:01 +01:00 committed by Patric Stout
parent 6916fc76bd
commit f31b65825f
1 changed files with 23 additions and 17 deletions
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40
src/video/sdl2_v.cpp
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@ -258,6 +258,27 @@ static void GetAvailableVideoMode(uint *w, uint *h)
*h = _resolutions[best].height;
}
static uint FindStartupDisplay(uint startup_display)
{
int num_displays = SDL_GetNumVideoDisplays();
/* If the user indicated a valid monitor, use that. */
if (IsInsideBS(startup_display, 0, num_displays)) return startup_display;
/* Mouse position decides which display to use. */
int mx, my;
SDL_GetGlobalMouseState(&mx, &my);
for (int display = 0; display < num_displays; ++display) {
SDL_Rect r;
if (SDL_GetDisplayBounds(display, &r) == 0 && IsInsideBS(mx, r.x, r.w) && IsInsideBS(my, r.y, r.h)) {
DEBUG(driver, 1, "SDL2: Mouse is at (%d, %d), use display %d (%d, %d, %d, %d)", mx, my, display, r.x, r.y, r.w, r.h);
return display;
}
}
return 0;
}
bool VideoDriver_SDL::CreateMainSurface(uint w, uint h, bool resize)
{
SDL_Surface *newscreen;
@ -689,27 +710,12 @@ const char *VideoDriver_SDL::Start(const StringList &parm)
}
if (ret_code < 0) return SDL_GetError();
this->startup_display = GetDriverParamInt(parm, "display", -1);
int num_displays = SDL_GetNumVideoDisplays();
if (!IsInsideBS(this->startup_display, 0, num_displays)) {
/* Mouse position decides which display to use */
int mx, my;
SDL_GetGlobalMouseState(&mx, &my);
this->startup_display = 0; // used when mouse is on no screen...
for (int display = 0; display < num_displays; ++display) {
SDL_Rect r;
if (SDL_GetDisplayBounds(display, &r) == 0 && IsInsideBS(mx, r.x, r.w) && IsInsideBS(my, r.y, r.h)) {
DEBUG(driver, 1, "SDL2: Mouse is at (%d, %d), use display %d (%d, %d, %d, %d)", mx, my, display, r.x, r.y, r.w, r.h);
this->startup_display = display;
break;
}
}
}
this->UpdateAutoResolution();
FindResolutions();
this->startup_display = FindStartupDisplay(GetDriverParamInt(parm, "display", -1));
if (!CreateMainSurface(_cur_resolution.width, _cur_resolution.height, false)) {
return SDL_GetError();
}