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simulator: maintain LCD position/size when toggling background

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Change-Id: Id76464b77b33d531d6075a83038466e18fab3a7f
This commit is contained in:
Christian Soffke 2024-12-28 13:23:35 +01:00
parent 8884284da4
commit 8ce9d9e39e
1 changed files with 36 additions and 13 deletions
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45
firmware/target/hosted/sdl/window-sdl.c
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@ -67,7 +67,7 @@ static void get_window_dimensions(int *w, int *h)
}
}
#define SNAP_MARGIN 50
#if defined(__APPLE__) || defined(__WIN32)
static void restore_aspect_ratio(int w, int h)
{
float aspect_ratio = (float) h / w;
@ -81,31 +81,51 @@ static void restore_aspect_ratio(int w, int h)
SDL_GetWindowSize(sdlWindow, &w, &h);
if (w != original_width || h != original_height)
{
if (abs(original_width - w) < SNAP_MARGIN)
{
w = original_width;
h = original_height;
}
else
h = w * aspect_ratio;
SDL_SetWindowSize(sdlWindow, w, h);
}
}
#endif
static void rebuild_gui_texture(void)
{
SDL_Surface *gui_surface;
int w, h, depth = LCD_DEPTH < 8 ? 16 : LCD_DEPTH;
int prev_w, prev_h, x, y,
w, h, depth = LCD_DEPTH < 8 ? 16 : LCD_DEPTH;
Uint32 flags = SDL_GetWindowFlags(sdlWindow);
get_window_dimensions(&w, &h);
SDL_RenderGetLogicalSize(sdlRenderer, &prev_w, &prev_h);
SDL_RenderSetLogicalSize(sdlRenderer, w, h);
if ((gui_texture = SDL_CreateTexture(sdlRenderer, SDL_MasksToPixelFormatEnum(depth,
0, 0, 0, 0), SDL_TEXTUREACCESS_STREAMING, w, h)) == NULL)
panicf("%s", SDL_GetError());
if (SDL_GetWindowFlags(sdlWindow) & SDL_WINDOW_RESIZABLE)
restore_aspect_ratio(w, h);
/* Did background change? */
if ((flags & SDL_WINDOW_RESIZABLE) &&
!(flags & (SDL_WINDOW_MAXIMIZED | SDL_WINDOW_FULLSCREEN)) &&
prev_w && prev_w != w)
{
SDL_GetWindowSize(sdlWindow, &x, NULL);
/* Maintain LCD's size */
float ratio = (float) x / prev_w;
SDL_SetWindowSize(sdlWindow, w * ratio, h * ratio);
/* move LCD back into previous position */
SDL_GetWindowPosition(sdlWindow, &x, &y);
if (background)
{
x -= (UI_LCD_POSX * ratio);
y -= (UI_LCD_POSY * ratio);
}
else
{
x += (UI_LCD_POSX * ratio);
y += (UI_LCD_POSY * ratio);
}
SDL_SetWindowPosition(sdlWindow, x > 0 ? x : 0, y > 0 ? y : 0);
}
if (background && picture_surface &&
(gui_surface = SDL_ConvertSurface(picture_surface, sim_lcd_surface->format, 0)))
@ -159,6 +179,9 @@ bool sdl_window_adjust(void)
SDL_SetWindowSize(sdlWindow, display_zoom * w, display_zoom * h);
}
#if defined(__APPLE__) || defined(__WIN32)
int logical_w, logical_h;
SDL_RenderGetLogicalSize(sdlRenderer, &logical_w, &logical_h);
if (logical_w == w && logical_h == h) /* background unchanged */
restore_aspect_ratio(w, h);
#endif
display_zoom = 0;