mirror of
https://github.com/RetroPortingToolKit/psxrecomp
synced 2026-10-26 10:19:47 -04:00
Matthew Stanley
eec71b9787
Default = largest multiple of 240 lines within 2/3 of the usable height; an explicit window_width is still honoured. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
43 lines
1.8 KiB
C
43 lines
1.8 KiB
C
/* window_size.h — the game window's opening size.
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*
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* Pure arithmetic over the display's usable bounds, kept out of main.cpp so a
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* test can pin it without SDL.
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*
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* An explicit width (game.toml / settings.toml / launcher) is honoured,
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* clamped to the usable area. With no width, the window opens at a whole
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* multiple of the PS1's native 240 lines that takes about two thirds of the
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* usable height: a normal window that scales with the panel, instead of a
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* maximised one that covers the desktop. The multiple is computed from
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* physical pixels (the runtime is per-monitor DPI aware), so a 4K or 8K
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* panel still gets a proportionally large image. */
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#pragma once
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#define PSX_WINDOW_NATIVE_LINES 240
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#define PSX_WINDOW_DEFAULT_HEIGHT_NUM 2 /* default height <= 2/3 of usable */
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#define PSX_WINDOW_DEFAULT_HEIGHT_DEN 3
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#define PSX_WINDOW_MIN_WIDTH 640
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/* In: *w = requested width (<= 0 means no explicit choice). have_bounds /
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* bounds_w / bounds_h = the display's usable area. num:den = present aspect.
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* Out: *w, *h = the client size to open. */
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static inline void psx_window_size(int* w, int* h, int num, int den,
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int have_bounds, int bounds_w, int bounds_h) {
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int width = *w;
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if (width <= 0) {
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int scale = 2;
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if (have_bounds) {
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scale = (bounds_h * PSX_WINDOW_DEFAULT_HEIGHT_NUM) /
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(PSX_WINDOW_DEFAULT_HEIGHT_DEN * PSX_WINDOW_NATIVE_LINES);
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if (scale < 2) scale = 2;
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}
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width = PSX_WINDOW_NATIVE_LINES * scale * num / den;
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}
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if (width < PSX_WINDOW_MIN_WIDTH) width = PSX_WINDOW_MIN_WIDTH;
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if (have_bounds) {
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if (width > bounds_w) width = bounds_w;
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if (width * den / num > bounds_h) width = bounds_h * num / den;
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}
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*w = width;
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*h = width * den / num;
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}
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