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Emscripten: adjust resolution to the device DPI

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This commit is contained in:
Sergii Pylypenko
2021-12-19 01:38:36 +02:00
parent f6245a47e0
commit eab51cb2b9
2 changed files with 5 additions and 1 deletions
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2
os/emscripten/shell.html
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@@ -3,7 +3,7 @@
<head>
<meta charset="utf-8">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
<meta name="viewport" content="width=device-width, height=device-height, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=no">
<title>OpenTTD</title>
<link rel="manifest" href="openttd.webapp">
<link rel="icon" href="openttd.256.png">

4
src/video/sdl2_v.cpp
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@@ -86,6 +86,9 @@ static void FindResolutions()
_resolutions.clear();
SDL_DisplayMode mode;
SDL_GetDesktopDisplayMode(0, &mode);
// Stupid mobile web browser reports 2x smaller window size
mode.w *= emscripten_get_device_pixel_ratio();
mode.h *= emscripten_get_device_pixel_ratio();
_resolutions.emplace_back(mode.w, mode.h); // 1920x1080
_resolutions.emplace_back(mode.w * 8 / 9, mode.h * 8 / 9); // 8 / 9 : 1920x1080 -> 1706x960
_resolutions.emplace_back(mode.w * 7 / 8, mode.h * 7 / 8); // 7 / 8 : 1920x1080 -> 1680x945
@@ -99,6 +102,7 @@ static void FindResolutions()
_resolutions.emplace_back(mode.w * 4 / 9, mode.h * 4 / 9); // 4 / 9 : 1920x1080 -> 853x480
_resolutions.emplace_back(mode.w * 3 / 8, mode.h * 3 / 8); // 3 / 8 : 1920x1080 -> 720x405
_resolutions.emplace_back(mode.w * 2 / 6, mode.h * 2 / 6); // 2 / 6 : 1920x1080 -> 640x360
_resolutions.emplace_back(mode.w * 5 / 18, mode.h * 5 / 18); // 5 / 18: 1920x1080 -> 533x300
_resolutions.emplace_back(mode.w * 2 / 8, mode.h * 2 / 8); // 2 / 8 : 1920x1080 -> 480x270
_resolutions.emplace_back(mode.w * 2 / 9, mode.h * 2 / 9); // 2 / 9 : 1920x1080 -> 426x240
#endif