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android: letterbox properly in landscape mode

This commit is contained in:
Nathan Korth 2023-01-20 11:28:38 -05:00 committed by Sigrid Solveig Haflínudóttir
parent cf6697c741
commit 6a927e4f2f
1 changed files with 14 additions and 4 deletions
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18
src/uxnemu.c
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@ -176,13 +176,23 @@ redraw(void)
#ifdef __ANDROID__
gScrDst.x = 0;
gScrDst.y = 0;
if(gScrSize.y > gScrSize.x) { /* portrait */
if(gScrSize.y > gScrSize.x) {
/* Portrait - stick to top of screen and use full width.
* Ideally we should letterbox in all cases; this is a
* workaround because SDL doesn't tell us the keyboard height. */
gScrDst.w = gScrSize.x;
gScrDst.h = gScrSize.x * uxn_screen.height / uxn_screen.width;
} else { /* landscape */
gScrDst.h = gScrSize.y;
} else {
/* Landscape - do proper letterboxing */
gScrDst.w = gScrSize.y * uxn_screen.width / uxn_screen.height;
gScrDst.x = (gScrSize.x - gScrDst.w) / 2;
if(gScrDst.w <= gScrSize.x) {
gScrDst.h = gScrSize.y;
gScrDst.x = (gScrSize.x - gScrDst.w) / 2;
} else {
gScrDst.w = gScrSize.x;
gScrDst.h = gScrSize.x * uxn_screen.height / uxn_screen.width;
gScrDst.y = (gScrSize.y - gScrDst.h) / 2;
}
}
SDL_RenderCopy(gRenderer, gTexture, NULL, &gScrDst);
#else