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Merge pull request #75784 from Riteo/int-scale

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Add content scale stretch modes, implement integer scaling
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Rémi Verschelde 2023-08-11 10:32:11 +02:00
commit 33198d0df0
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GPG Key ID: C3336907360768E1
6 changed files with 74 additions and 3 deletions
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1
core/config/project_settings.cpp
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@ -1349,6 +1349,7 @@ ProjectSettings::ProjectSettings() {
GLOBAL_DEF_BASIC(PropertyInfo(Variant::STRING, "display/window/stretch/mode", PROPERTY_HINT_ENUM, "disabled,canvas_items,viewport"), "disabled");
GLOBAL_DEF_BASIC(PropertyInfo(Variant::STRING, "display/window/stretch/aspect", PROPERTY_HINT_ENUM, "ignore,keep,keep_width,keep_height,expand"), "keep");
GLOBAL_DEF_BASIC(PropertyInfo(Variant::FLOAT, "display/window/stretch/scale", PROPERTY_HINT_RANGE, "0.5,8.0,0.01"), 1.0);
GLOBAL_DEF_BASIC(PropertyInfo(Variant::STRING, "display/window/stretch/scale_mode", PROPERTY_HINT_ENUM, "fractional,integer"), "fractional");
GLOBAL_DEF(PropertyInfo(Variant::INT, "debug/settings/profiler/max_functions", PROPERTY_HINT_RANGE, "128,65535,1"), 16384);

4
doc/classes/ProjectSettings.xml
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@ -813,6 +813,10 @@
[b]"viewport"[/b]: The size of the root [Viewport] is set precisely to the base size specified in the Project Settings' Display section. The scene is rendered to this viewport first. Finally, this viewport is scaled to fit the screen (taking [member display/window/stretch/aspect] into account). Recommended for games that use a pixel art esthetic.
</member>
<member name="display/window/stretch/scale" type="float" setter="" getter="" default="1.0">
The scale factor multiplier to use for 2D elements. This multiplies the final scale factor determined by [member display/window/stretch/mode]. If using the [b]Disabled[/b] stretch mode, this scale factor is applied as-is. This can be adjusted to make the UI easier to read on certain displays.
</member>
<member name="display/window/stretch/scale_mode" type="String" setter="" getter="" default="&quot;fractional&quot;">
The policy to use to determine the final scale factor for 2D elements. This affects how [member display/window/stretch/scale] is applied, in addition to the automatic scale factor determined by [member display/window/stretch/mode].
</member>
<member name="display/window/subwindows/embed_subwindows" type="bool" setter="" getter="" default="true">
If [code]true[/code] subwindows are embedded in the main window.

9
doc/classes/Window.xml
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@ -569,6 +569,9 @@
<member name="content_scale_size" type="Vector2i" setter="set_content_scale_size" getter="get_content_scale_size" default="Vector2i(0, 0)">
Base size of the content (i.e. nodes that are drawn inside the window). If non-zero, [Window]'s content will be scaled when the window is resized to a different size.
</member>
<member name="content_scale_stretch" type="int" setter="set_content_scale_stretch" getter="get_content_scale_stretch" enum="Window.ContentScaleStretch" default="0">
The policy to use to determine the final scale factor for 2D elements. This affects how [member content_scale_factor] is applied, in addition to the automatic scale factor determined by [member content_scale_size].
</member>
<member name="current_screen" type="int" setter="set_current_screen" getter="get_current_screen">
The screen the window is currently on.
</member>
@ -840,6 +843,12 @@
<constant name="CONTENT_SCALE_ASPECT_EXPAND" value="4" enum="ContentScaleAspect">
The content's aspect will be preserved. If the target size has different aspect from the base one, the content will stay in the top-left corner and add an extra visible area in the stretched space.
</constant>
<constant name="CONTENT_SCALE_STRETCH_FRACTIONAL" value="0" enum="ContentScaleStretch">
The content will be stretched according to a fractional factor. This fills all the space available in the window, but allows "pixel wobble" to occur due to uneven pixel scaling.
</constant>
<constant name="CONTENT_SCALE_STRETCH_INTEGER" value="1" enum="ContentScaleStretch">
The content will be stretched only according to an integer factor, preserving sharp pixels. This may leave a black background visible on the window's edges depending on the window size.
</constant>
<constant name="LAYOUT_DIRECTION_INHERITED" value="0" enum="LayoutDirection">
Automatic layout direction, determined from the parent window layout direction.
</constant>

7
main/main.cpp
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@ -3122,6 +3122,7 @@ bool Main::start() {
Size2i stretch_size = Size2i(GLOBAL_GET("display/window/size/viewport_width"),
GLOBAL_GET("display/window/size/viewport_height"));
real_t stretch_scale = GLOBAL_GET("display/window/stretch/scale");
String stretch_scale_mode = GLOBAL_GET("display/window/stretch/scale_mode");
Window::ContentScaleMode cs_sm = Window::CONTENT_SCALE_MODE_DISABLED;
if (stretch_mode == "canvas_items") {
@ -3141,8 +3142,14 @@ bool Main::start() {
cs_aspect = Window::CONTENT_SCALE_ASPECT_EXPAND;
}
Window::ContentScaleStretch cs_stretch = Window::CONTENT_SCALE_STRETCH_FRACTIONAL;
if (stretch_scale_mode == "integer") {
cs_stretch = Window::CONTENT_SCALE_STRETCH_INTEGER;
}
sml->get_root()->set_content_scale_mode(cs_sm);
sml->get_root()->set_content_scale_aspect(cs_aspect);
sml->get_root()->set_content_scale_stretch(cs_stretch);
sml->get_root()->set_content_scale_size(stretch_size);
sml->get_root()->set_content_scale_factor(stretch_scale);

46
scene/main/window.cpp
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@ -1001,6 +1001,17 @@ void Window::_update_viewport_size() {
float font_oversampling = 1.0;
window_transform = Transform2D();
if (content_scale_stretch == Window::CONTENT_SCALE_STRETCH_INTEGER) {
// We always want to make sure that the content scale factor is a whole
// number, else there will be pixel wobble no matter what.
content_scale_factor = Math::floor(content_scale_factor);
// A content scale factor of zero is pretty useless.
if (content_scale_factor < 1) {
content_scale_factor = 1;
}
}
if (content_scale_mode == CONTENT_SCALE_MODE_DISABLED || content_scale_size.x == 0 || content_scale_size.y == 0) {
font_oversampling = content_scale_factor;
final_size = size;
@ -1054,13 +1065,26 @@ void Window::_update_viewport_size() {
screen_size = screen_size.floor();
viewport_size = viewport_size.floor();
if (content_scale_stretch == Window::CONTENT_SCALE_STRETCH_INTEGER) {
Size2i screen_scale = (screen_size / viewport_size).floor();
int scale_factor = MIN(screen_scale.x, screen_scale.y);
if (scale_factor < 1) {
scale_factor = 1;
}
screen_size = viewport_size * scale_factor;
}
Size2 margin;
Size2 offset;
if (content_scale_aspect != CONTENT_SCALE_ASPECT_EXPAND && screen_size.x < video_mode.x) {
if (screen_size.x < video_mode.x) {
margin.x = Math::round((video_mode.x - screen_size.x) / 2.0);
offset.x = Math::round(margin.x * viewport_size.y / screen_size.y);
} else if (content_scale_aspect != CONTENT_SCALE_ASPECT_EXPAND && screen_size.y < video_mode.y) {
}
if (screen_size.y < video_mode.y) {
margin.y = Math::round((video_mode.y - screen_size.y) / 2.0);
offset.y = Math::round(margin.y * viewport_size.x / screen_size.x);
}
@ -1337,6 +1361,15 @@ Window::ContentScaleAspect Window::get_content_scale_aspect() const {
return content_scale_aspect;
}
void Window::set_content_scale_stretch(ContentScaleStretch p_stretch) {
content_scale_stretch = p_stretch;
_update_viewport_size();
}
Window::ContentScaleStretch Window::get_content_scale_stretch() const {
return content_scale_stretch;
}
void Window::set_content_scale_factor(real_t p_factor) {
ERR_MAIN_THREAD_GUARD;
ERR_FAIL_COND(p_factor <= 0);
@ -2593,6 +2626,9 @@ void Window::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_content_scale_aspect", "aspect"), &Window::set_content_scale_aspect);
ClassDB::bind_method(D_METHOD("get_content_scale_aspect"), &Window::get_content_scale_aspect);
ClassDB::bind_method(D_METHOD("set_content_scale_stretch", "stretch"), &Window::set_content_scale_stretch);
ClassDB::bind_method(D_METHOD("get_content_scale_stretch"), &Window::get_content_scale_stretch);
ClassDB::bind_method(D_METHOD("set_content_scale_factor", "factor"), &Window::set_content_scale_factor);
ClassDB::bind_method(D_METHOD("get_content_scale_factor"), &Window::get_content_scale_factor);
@ -2711,7 +2747,8 @@ void Window::_bind_methods() {
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2I, "content_scale_size"), "set_content_scale_size", "get_content_scale_size");
ADD_PROPERTY(PropertyInfo(Variant::INT, "content_scale_mode", PROPERTY_HINT_ENUM, "Disabled,Canvas Items,Viewport"), "set_content_scale_mode", "get_content_scale_mode");
ADD_PROPERTY(PropertyInfo(Variant::INT, "content_scale_aspect", PROPERTY_HINT_ENUM, "Ignore,Keep,Keep Width,Keep Height,Expand"), "set_content_scale_aspect", "get_content_scale_aspect");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "content_scale_factor"), "set_content_scale_factor", "get_content_scale_factor");
ADD_PROPERTY(PropertyInfo(Variant::INT, "content_scale_stretch", PROPERTY_HINT_ENUM, "Fractional,Integer"), "set_content_scale_stretch", "get_content_scale_stretch");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "content_scale_factor", PROPERTY_HINT_RANGE, "0.5,8.0,0.01"), "set_content_scale_factor", "get_content_scale_factor");
ADD_GROUP("Localization", "");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "auto_translate"), "set_auto_translate", "is_auto_translating");
@ -2763,6 +2800,9 @@ void Window::_bind_methods() {
BIND_ENUM_CONSTANT(CONTENT_SCALE_ASPECT_KEEP_HEIGHT);
BIND_ENUM_CONSTANT(CONTENT_SCALE_ASPECT_EXPAND);
BIND_ENUM_CONSTANT(CONTENT_SCALE_STRETCH_FRACTIONAL);
BIND_ENUM_CONSTANT(CONTENT_SCALE_STRETCH_INTEGER);
BIND_ENUM_CONSTANT(LAYOUT_DIRECTION_INHERITED);
BIND_ENUM_CONSTANT(LAYOUT_DIRECTION_LOCALE);
BIND_ENUM_CONSTANT(LAYOUT_DIRECTION_LTR);

10
scene/main/window.h
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@ -78,6 +78,11 @@ public:
CONTENT_SCALE_ASPECT_EXPAND,
};
enum ContentScaleStretch {
CONTENT_SCALE_STRETCH_FRACTIONAL,
CONTENT_SCALE_STRETCH_INTEGER,
};
enum LayoutDirection {
LAYOUT_DIRECTION_INHERITED,
LAYOUT_DIRECTION_LOCALE,
@ -135,6 +140,7 @@ private:
Size2i content_scale_size;
ContentScaleMode content_scale_mode = CONTENT_SCALE_MODE_DISABLED;
ContentScaleAspect content_scale_aspect = CONTENT_SCALE_ASPECT_IGNORE;
ContentScaleStretch content_scale_stretch = CONTENT_SCALE_STRETCH_FRACTIONAL;
real_t content_scale_factor = 1.0;
void _make_window();
@ -299,6 +305,9 @@ public:
void set_content_scale_aspect(ContentScaleAspect p_aspect);
ContentScaleAspect get_content_scale_aspect() const;
void set_content_scale_stretch(ContentScaleStretch p_stretch);
ContentScaleStretch get_content_scale_stretch() const;
void set_content_scale_factor(real_t p_factor);
real_t get_content_scale_factor() const;
@ -420,6 +429,7 @@ VARIANT_ENUM_CAST(Window::Mode);
VARIANT_ENUM_CAST(Window::Flags);
VARIANT_ENUM_CAST(Window::ContentScaleMode);
VARIANT_ENUM_CAST(Window::ContentScaleAspect);
VARIANT_ENUM_CAST(Window::ContentScaleStretch);
VARIANT_ENUM_CAST(Window::LayoutDirection);
VARIANT_ENUM_CAST(Window::WindowInitialPosition);