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Add new command line option: -display

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The new command line option -display lets the user select the display on
which Descent 3 should be displayed.

This is useful in multi-monitor setups where the game now can be run on any of
the given monitors.
This commit is contained in:
Sebastian Holtermann 2024-12-17 20:32:13 +01:00
parent 6583bfe575
commit 0e2ef804dd
1 changed files with 15 additions and 1 deletions
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16
renderer/HardwareOpenGL.cpp
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@ -424,7 +424,21 @@ int opengl_Setup(oeApplication *app, const int *width, const int *height) {
}
if (!GSDLWindow) {
GSDLWindow = SDL_CreateWindow("Descent 3", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, winw, winh, flags);
int display = 0;
if (int display_arg = FindArg("-display"); display_arg != 0) {
if (const char * arg_index_str = GetArg (display_arg + 1); arg_index_str == nullptr) {
LOG_WARNING << "No parameter for -display given";
} else {
int arg_index = atoi(arg_index_str);
int display_count = SDL_GetNumVideoDisplays();
if ((arg_index < 0) || (arg_index >= display_count)) {
LOG_WARNING.printf( "Parameter for -display must be in the range 0..%i", display_count-1 );
} else {
display = arg_index;
}
}
}
GSDLWindow = SDL_CreateWindow("Descent 3", SDL_WINDOWPOS_UNDEFINED_DISPLAY(display), SDL_WINDOWPOS_UNDEFINED_DISPLAY(display), winw, winh, flags);
if (!GSDLWindow) {
LOG_ERROR.printf("OpenGL: SDL window creation failed: %s", SDL_GetError());
return 0;