mirror of
https://github.com/libsdl-org/SDL.git
synced 2024-11-27 13:53:37 +08:00
4f55271571
It was intended to make the API easier to use, but various automatic garbage collection all had flaws, and making the application periodically clean up temporary memory added cognitive load to using the API, and in many cases was it was difficult to restructure threaded code to handle this. So, we're largely going back to the original system, where the API returns allocated results and you free them. In addition, to solve the problems we originally wanted temporary memory for: * Short strings with a finite count, like device names, get stored in a per-thread string pool. * Events continue to use temporary memory internally, which is cleaned up on the next event processing cycle.
107 lines
3.2 KiB
C
107 lines
3.2 KiB
C
/*
|
|
Copyright (C) 1997-2024 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.
|
|
*/
|
|
|
|
/* Program to test querying of display info */
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include <SDL3/SDL.h>
|
|
#include <SDL3/SDL_main.h>
|
|
#include <SDL3/SDL_test.h>
|
|
|
|
static void
|
|
print_mode(const char *prefix, const SDL_DisplayMode *mode)
|
|
{
|
|
if (!mode) {
|
|
return;
|
|
}
|
|
|
|
SDL_Log("%s: %dx%d@%gx, %gHz, fmt=%s\n",
|
|
prefix,
|
|
mode->w, mode->h, mode->pixel_density, mode->refresh_rate,
|
|
SDL_GetPixelFormatName(mode->format));
|
|
}
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
SDL_DisplayID *displays;
|
|
SDL_DisplayMode **modes;
|
|
const SDL_DisplayMode *mode;
|
|
int num_displays, i;
|
|
SDLTest_CommonState *state;
|
|
|
|
/* Initialize test framework */
|
|
state = SDLTest_CommonCreateState(argv, SDL_INIT_VIDEO);
|
|
if (!state) {
|
|
return 1;
|
|
}
|
|
|
|
/* Enable standard application logging */
|
|
SDL_SetLogPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
|
|
|
|
/* Parse commandline */
|
|
if (!SDLTest_CommonDefaultArgs(state, argc, argv)) {
|
|
return 1;
|
|
}
|
|
|
|
/* Load the SDL library */
|
|
if (SDL_Init(SDL_INIT_VIDEO) < 0) {
|
|
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());
|
|
return 1;
|
|
}
|
|
|
|
SDL_Log("Using video target '%s'.\n", SDL_GetCurrentVideoDriver());
|
|
displays = SDL_GetDisplays(&num_displays);
|
|
|
|
SDL_Log("See %d displays.\n", num_displays);
|
|
|
|
for (i = 0; i < num_displays; i++) {
|
|
SDL_DisplayID dpy = displays[i];
|
|
SDL_PropertiesID props = SDL_GetDisplayProperties(dpy);
|
|
SDL_Rect rect = { 0, 0, 0, 0 };
|
|
int m, num_modes = 0;
|
|
const SDL_bool has_HDR = SDL_GetBooleanProperty(props, SDL_PROP_DISPLAY_HDR_ENABLED_BOOLEAN, SDL_FALSE);
|
|
|
|
SDL_GetDisplayBounds(dpy, &rect);
|
|
modes = SDL_GetFullscreenDisplayModes(dpy, &num_modes);
|
|
SDL_Log("%" SDL_PRIu32 ": \"%s\" (%dx%d at %d,%d), content scale %.2f, %d fullscreen modes, HDR capable: %s.\n", dpy, SDL_GetDisplayName(dpy), rect.w, rect.h, rect.x, rect.y, SDL_GetDisplayContentScale(dpy), num_modes, has_HDR ? "yes" : "no");
|
|
|
|
mode = SDL_GetCurrentDisplayMode(dpy);
|
|
if (mode) {
|
|
print_mode("CURRENT", mode);
|
|
} else {
|
|
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, " CURRENT: failed to query (%s)\n", SDL_GetError());
|
|
}
|
|
|
|
mode = SDL_GetDesktopDisplayMode(dpy);
|
|
if (mode) {
|
|
print_mode("DESKTOP", mode);
|
|
} else {
|
|
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, " DESKTOP: failed to query (%s)\n", SDL_GetError());
|
|
}
|
|
|
|
for (m = 0; m < num_modes; m++) {
|
|
char prefix[64];
|
|
(void)SDL_snprintf(prefix, sizeof(prefix), " MODE %d", m);
|
|
print_mode(prefix, modes[m]);
|
|
}
|
|
SDL_free(modes);
|
|
|
|
SDL_Log("\n");
|
|
}
|
|
SDL_free(displays);
|
|
|
|
SDL_Quit();
|
|
SDLTest_CommonDestroyState(state);
|
|
return 0;
|
|
}
|