mirror of
https://github.com/shadps4-emu/ext-SDL.git
synced 2025-01-23 11:15:03 +00:00
c699f3d1d8
We have gotten feedback that abstracting the coordinate system based on the display scale is unexpected and it is difficult to adapt existing applications to the proposed API. The new approach is to provide the coordinate systems that people expect, but provide additional information that will help applications properly handle high DPI situations. The concepts needed for high DPI support are documented in README-highdpi.md. An example of automatically adapting the content to display scale changes can be found in SDL_test_common.c, where auto_scale_content is checked. Also, the SDL_WINDOW_ALLOW_HIGHDPI window flag has been replaced by the SDL_HINT_VIDEO_ENABLE_HIGH_PIXEL_DENSITY hint. Fixes https://github.com/libsdl-org/SDL/issues/7709
105 lines
3.0 KiB
C
105 lines
3.0 KiB
C
/*
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Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely.
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*/
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/* Program to test querying of display info */
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#include <stdlib.h>
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#include <SDL3/SDL.h>
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#include <SDL3/SDL_main.h>
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#include <SDL3/SDL_test.h>
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static void
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print_mode(const char *prefix, const SDL_DisplayMode *mode)
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{
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if (mode == NULL) {
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return;
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}
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SDL_Log("%s: %dx%d@%gx, %gHz, fmt=%s\n",
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prefix,
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mode->w, mode->h, mode->pixel_density, mode->refresh_rate,
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SDL_GetPixelFormatName(mode->format));
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}
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int main(int argc, char *argv[])
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{
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SDL_DisplayID *displays;
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const SDL_DisplayMode **modes;
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const SDL_DisplayMode *mode;
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int num_displays, i;
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SDLTest_CommonState *state;
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/* Initialize test framework */
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state = SDLTest_CommonCreateState(argv, SDL_INIT_VIDEO);
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if (state == NULL) {
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return 1;
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}
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/* Enable standard application logging */
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SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
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/* Parse commandline */
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if (!SDLTest_CommonDefaultArgs(state, argc, argv)) {
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return 1;
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}
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/* Load the SDL library */
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if (SDL_Init(SDL_INIT_VIDEO) < 0) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());
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return 1;
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}
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SDL_Log("Using video target '%s'.\n", SDL_GetCurrentVideoDriver());
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displays = SDL_GetDisplays(&num_displays);
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SDL_Log("See %d displays.\n", num_displays);
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for (i = 0; i < num_displays; i++) {
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SDL_DisplayID dpy = displays[i];
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SDL_Rect rect = { 0, 0, 0, 0 };
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int m, num_modes = 0;
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SDL_GetDisplayBounds(dpy, &rect);
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modes = SDL_GetFullscreenDisplayModes(dpy, &num_modes);
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SDL_Log("%" SDL_PRIu32 ": \"%s\" (%dx%d at %d,%d), content scale %.1f, %d fullscreen modes.\n", dpy, SDL_GetDisplayName(dpy), rect.w, rect.h, rect.x, rect.y, SDL_GetDisplayContentScale(dpy), num_modes);
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mode = SDL_GetCurrentDisplayMode(dpy);
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if (mode) {
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print_mode("CURRENT", mode);
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} else {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, " CURRENT: failed to query (%s)\n", SDL_GetError());
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}
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mode = SDL_GetDesktopDisplayMode(dpy);
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if (mode) {
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print_mode("DESKTOP", mode);
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} else {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, " DESKTOP: failed to query (%s)\n", SDL_GetError());
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}
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for (m = 0; m < num_modes; m++) {
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char prefix[64];
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(void)SDL_snprintf(prefix, sizeof(prefix), " MODE %d", m);
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print_mode(prefix, modes[m]);
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}
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SDL_free((void*)modes);
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SDL_Log("\n");
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}
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SDL_free(displays);
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SDL_Quit();
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SDLTest_CommonDestroyState(state);
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return 0;
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}
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