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@ r27870:7c06e9e1a86b
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Location: cpp/openttd-patchpack/source/src/zoom_func.h
r27870:7c06e9e1a86b
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Fix: asserts unintentially being partially disabled in release-builds (#11268)
The nlohmann-json header file includes assert.h, which rudely resets
the assert macro to what that header thinks is right. As we set the
assert macro to be active with release builds when WITH_ASSERT is
active, this means that every file including nlohmann-json has their
asserts disabled (for release-builds) but files that don't do no.
Let's avoid this issue, by telling nlohmann to not include assert.h.
The nlohmann-json header file includes assert.h, which rudely resets
the assert macro to what that header thinks is right. As we set the
assert macro to be active with release builds when WITH_ASSERT is
active, this means that every file including nlohmann-json has their
asserts disabled (for release-builds) but files that don't do no.
Let's avoid this issue, by telling nlohmann to not include assert.h.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 | /*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file zoom_func.h Functions related to zooming. */
#ifndef ZOOM_FUNC_H
#define ZOOM_FUNC_H
#include "zoom_type.h"
/**
* Scale by zoom level, usually shift left (when zoom > ZOOM_LVL_NORMAL)
* When shifting right, value is rounded up
* @param value value to shift
* @param zoom zoom level to shift to
* @return shifted value
*/
static inline int ScaleByZoom(int value, ZoomLevel zoom)
{
return value << zoom;
}
/**
* Scale by zoom level, usually shift right (when zoom > ZOOM_LVL_NORMAL)
* When shifting right, value is rounded up
* @param value value to shift
* @param zoom zoom level to shift to
* @return shifted value
*/
static inline int UnScaleByZoom(int value, ZoomLevel zoom)
{
return (value + (1 << zoom) - 1) >> zoom;
}
/**
* Adjust by zoom level; zoom < 0 shifts right, zoom >= 0 shifts left
* @param value value to shift
* @param zoom zoom level to shift to
* @return shifted value
*/
static inline int AdjustByZoom(int value, int zoom)
{
return zoom < 0 ? UnScaleByZoom(value, ZoomLevel(-zoom)) : ScaleByZoom(value, ZoomLevel(zoom));
}
/**
* Scale by zoom level, usually shift left (when zoom > ZOOM_LVL_NORMAL)
* @param value value to shift
* @param zoom zoom level to shift to
* @return shifted value
*/
static inline int ScaleByZoomLower(int value, ZoomLevel zoom)
{
return value << zoom;
}
/**
* Scale by zoom level, usually shift right (when zoom > ZOOM_LVL_NORMAL)
* @param value value to shift
* @param zoom zoom level to shift to
* @return shifted value
*/
static inline int UnScaleByZoomLower(int value, ZoomLevel zoom)
{
return value >> zoom;
}
/**
* Short-hand to apply GUI zoom level.
* @param value Pixel amount at #ZOOM_LVL_BEGIN (full zoom in).
* @return Pixel amount at #ZOOM_LVL_GUI (current interface size).
*/
static inline int UnScaleGUI(int value)
{
return UnScaleByZoom(value, ZOOM_LVL_GUI);
}
/**
* Scale zoom level relative to GUI zoom.
* @param value zoom level to scale
* @return scaled zoom level
*/
static inline ZoomLevel ScaleZoomGUI(ZoomLevel value)
{
return std::clamp(ZoomLevel(value + (ZOOM_LVL_GUI - ZOOM_LVL_OUT_4X)), ZOOM_LVL_MIN, ZOOM_LVL_MAX);
}
/**
* UnScale zoom level relative to GUI zoom.
* @param value zoom level to scale
* @return un-scaled zoom level
*/
static inline ZoomLevel UnScaleZoomGUI(ZoomLevel value)
{
return std::clamp(ZoomLevel(value - (ZOOM_LVL_GUI - ZOOM_LVL_OUT_4X)), ZOOM_LVL_MIN, ZOOM_LVL_MAX);
}
/**
* Scale traditional pixel dimensions to GUI zoom level, for drawing sprites.
* @param value Pixel amount at #ZOOM_LVL_BASE (traditional "normal" interface size).
* @return Pixel amount at #ZOOM_LVL_GUI (current interface size).
*/
static inline int ScaleSpriteTrad(int value)
{
return UnScaleGUI(value * ZOOM_LVL_BASE);
}
/**
* Scale traditional pixel dimensions to GUI zoom level.
* @param value Pixel amount at #ZOOM_LVL_BASE (traditional "normal" interface size).
* @return Pixel amount at #ZOOM_LVL_GUI (current interface size).
*/
static inline int ScaleGUITrad(int value)
{
return value * _gui_scale / 100;
}
#endif /* ZOOM_FUNC_H */
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