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simulator: Adjust scaling using keyboard shortcuts

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Press 0-3 to to adjust current zoom level
to 50% (0), 100% (1), 200% (2), or 300% (3).

Press 4 to switch between "best" (linear)
and nearest pixel sampling.

Change-Id: Id10d361659855a0ad9c97e6b341f498f72709ef5
This commit is contained in:
Christian Soffke 2024-12-22 12:50:59 +01:00
parent 759cbf4e5f
commit 7aaa722a5d
3 changed files with 55 additions and 22 deletions
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24
firmware/target/hosted/sdl/button-sdl.c
View file

@ -351,6 +351,30 @@ static void button_event(int key, bool pressed)
switch (key)
{
#ifdef SIMULATOR
case SDLK_0:
display_zoom = 0.5;
case SDLK_1:
display_zoom = display_zoom ?: 1;
case SDLK_2:
display_zoom = display_zoom ?: 2;
case SDLK_3:
display_zoom = display_zoom ?: 3;
case SDLK_4:
if (pressed)
{
display_zoom = 0;
return;
}
if (!display_zoom)
SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY,
strcmp(SDL_GetHint(SDL_HINT_RENDER_SCALE_QUALITY) ?:
"best", "best") ? "best": "nearest");
sdl_window_needs_update();
#if !defined(__WIN32) && !defined (__APPLE__)
button_queue_post(SDLK_UNKNOWN, 0); /* update window on main thread */
#endif
return;
case USB_KEY:
if (!pressed)
{

20
firmware/target/hosted/sdl/lcd-sdl.c
View file

@ -65,19 +65,25 @@ static inline void sdl_render(void)
#define SNAP_MARGIN 50
int sdl_update_window(void)
{
int w, h;
if (!window_needs_update)
return false;
window_needs_update = false;
#if defined (__APPLE__) || defined(__WIN32) /* Constrain aspect ratio */
sdl_get_window_dimensions(&w, &h);
if (!(SDL_GetWindowFlags(window) & (SDL_WINDOW_MAXIMIZED | SDL_WINDOW_FULLSCREEN)))
{
float aspect_ratio;
int w, h;
sdl_get_window_dimensions(&w, &h);
aspect_ratio = (float) h / w;
if (display_zoom)
{
SDL_SetWindowSize(window, display_zoom * w, display_zoom * h);
}
#if defined(__APPLE__) || defined(__WIN32)
else /* Constrain aspect ratio on Windows and MacOS */
{
float aspect_ratio = (float) h / w;
int original_height = h;
int original_width = w;
@ -96,6 +102,8 @@ int sdl_update_window(void)
}
}
#endif
}
display_zoom = 0;
sdl_render();
return true;
}

1
firmware/target/hosted/sdl/system-sdl.c
View file

@ -113,6 +113,7 @@ static void sdl_window_setup(void)
panicf("%s", SDL_GetError());
SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, display_zoom == 1 ? "best" : "nearest");
display_zoom = 0; /* keeps track of user requesting a scale level change */
SDL_RenderSetLogicalSize(sdlRenderer, width, height);
if ((gui_surface = SDL_CreateRGBSurface(0, width, height, depth,