Lime3DS/src/core/frontend/framebuffer_layout.cpp
2026-03-20 13:30:12 +03:00

735 lines
36 KiB
C++

// Copyright Citra Emulator Project / Azahar Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <cmath>
#include "common/assert.h"
#include "common/settings.h"
#include "core/3ds.h"
#include "core/frontend/framebuffer_layout.h"
namespace Layout {
static constexpr float TOP_SCREEN_ASPECT_RATIO =
static_cast<float>(Core::kScreenTopHeight) / Core::kScreenTopWidth;
static constexpr float BOT_SCREEN_ASPECT_RATIO =
static_cast<float>(Core::kScreenBottomHeight) / Core::kScreenBottomWidth;
u32 FramebufferLayout::GetScalingRatio() const {
if (is_rotated) {
return static_cast<u32>(((top_screen.GetWidth() - 1) / Core::kScreenTopWidth) + 1);
} else {
return static_cast<u32>(((top_screen.GetWidth() - 1) / Core::kScreenTopHeight) + 1);
}
}
// Finds the largest size subrectangle contained in window area that is confined to the aspect ratio
// aligned to the upper-left corner of the bounding rectangle
template <class T>
static Common::Rectangle<T> MaxRectangle(Common::Rectangle<T> window_area,
float window_aspect_ratio) {
float scale = std::min(static_cast<float>(window_area.GetWidth()),
window_area.GetHeight() / window_aspect_ratio);
return Common::Rectangle<T>{
window_area.left, window_area.top, window_area.left + static_cast<T>(std::round(scale)),
window_area.top + static_cast<T>(std::round(scale * window_aspect_ratio))};
}
// overload of the above that takes an inner rectangle instead of an aspect ratio, and can be
// limited to integer scaling if desired
template <class T>
static Common::Rectangle<T> MaxRectangle(Common::Rectangle<T> bounding_window,
Common::Rectangle<T> inner_window,
bool use_integer = false) {
float scale =
std::min(static_cast<float>(bounding_window.GetWidth()) / inner_window.GetWidth(),
static_cast<float>(bounding_window.GetHeight()) / inner_window.GetHeight());
if (use_integer && scale >= 1.0) {
scale = std::floor(scale);
}
return Common::Rectangle(bounding_window.left, bounding_window.top,
bounding_window.left + static_cast<T>(inner_window.GetWidth() * scale),
bounding_window.top +
static_cast<T>(inner_window.GetHeight() * scale));
}
FramebufferLayout DefaultFrameLayout(u32 width, u32 height, bool swapped, bool upright) {
return LargeFrameLayout(width, height, swapped, upright, 1.0f,
Settings::SmallScreenPosition::BelowLarge);
}
FramebufferLayout PortraitTopFullFrameLayout(u32 width, u32 height, bool swapped, bool upright) {
ASSERT(width > 0);
ASSERT(height > 0);
const float scale_factor = swapped ? 1.25f : 0.8f;
FramebufferLayout res = LargeFrameLayout(width, height, swapped, upright, scale_factor,
Settings::SmallScreenPosition::BelowLarge);
const int shiftY = -(int)(swapped ? res.bottom_screen.top : res.top_screen.top);
res.top_screen = res.top_screen.TranslateY(shiftY);
res.bottom_screen = res.bottom_screen.TranslateY(shiftY);
return res;
}
FramebufferLayout PortraitOriginalLayout(u32 width, u32 height, bool swapped, bool upright) {
ASSERT(width > 0);
ASSERT(height > 0);
const float scale_factor = 1;
FramebufferLayout res = LargeFrameLayout(width, height, swapped, upright, scale_factor,
Settings::SmallScreenPosition::BelowLarge);
const int shiftY = -(int)(swapped ? res.bottom_screen.top : res.top_screen.top);
res.top_screen = res.top_screen.TranslateY(shiftY);
res.bottom_screen = res.bottom_screen.TranslateY(shiftY);
return res;
}
FramebufferLayout SingleFrameLayout(u32 width, u32 height, bool swapped, bool upright) {
ASSERT(width > 0);
ASSERT(height > 0);
// The drawing code needs at least somewhat valid values for both screens
// so just calculate them both even if the other isn't showing.
if (upright) {
std::swap(width, height);
}
FramebufferLayout res{width, height, !swapped, swapped, {}, {}, !upright};
Common::Rectangle<u32> screen_window_area{0, 0, width, height};
Common::Rectangle<u32> top_screen{0, 0, Core::kScreenTopWidth, Core::kScreenTopHeight};
Common::Rectangle<u32> bot_screen{0, 0, Core::kScreenBottomWidth, Core::kScreenBottomHeight};
const float window_aspect_ratio = static_cast<float>(height) / static_cast<float>(width);
const auto aspect_ratio_setting = Settings::values.aspect_ratio.GetValue();
switch (aspect_ratio_setting) {
case Settings::AspectRatio::Default:
// this is the only one where we allow integer scaling to apply
// also the only option on desktop
top_screen = MaxRectangle(screen_window_area, top_screen,
Settings::values.use_integer_scaling.GetValue());
bot_screen = MaxRectangle(screen_window_area, bot_screen,
Settings::values.use_integer_scaling.GetValue());
break;
case Settings::AspectRatio::Stretch:
top_screen = MaxRectangle(screen_window_area, window_aspect_ratio);
bot_screen = MaxRectangle(screen_window_area, window_aspect_ratio);
break;
default:
float emulation_aspect_ratio = FramebufferLayout::GetAspectRatioValue(aspect_ratio_setting);
top_screen = MaxRectangle(screen_window_area, emulation_aspect_ratio);
bot_screen = MaxRectangle(screen_window_area, emulation_aspect_ratio);
}
const bool stretched = (Settings::values.screen_top_stretch.GetValue() && !swapped) ||
(Settings::values.screen_bottom_stretch.GetValue() && swapped);
if (stretched) {
top_screen = {Settings::values.screen_top_leftright_padding.GetValue(),
Settings::values.screen_top_topbottom_padding.GetValue(),
width - Settings::values.screen_top_leftright_padding.GetValue(),
height - Settings::values.screen_top_topbottom_padding.GetValue()};
bot_screen = {Settings::values.screen_bottom_leftright_padding.GetValue(),
Settings::values.screen_bottom_topbottom_padding.GetValue(),
width - Settings::values.screen_bottom_leftright_padding.GetValue(),
height - Settings::values.screen_bottom_topbottom_padding.GetValue()};
} else {
top_screen = top_screen.TranslateX((width - top_screen.GetWidth()) / 2)
.TranslateY((height - top_screen.GetHeight()) / 2);
bot_screen = bot_screen.TranslateX((width - bot_screen.GetWidth()) / 2)
.TranslateY((height - bot_screen.GetHeight()) / 2);
}
res.top_screen = top_screen;
res.bottom_screen = bot_screen;
if (upright) {
return reverseLayout(res);
} else {
return res;
}
}
FramebufferLayout LargeFrameLayout(u32 width, u32 height, bool swapped, bool upright,
float scale_factor,
Settings::SmallScreenPosition small_screen_position) {
ASSERT(width > 0);
ASSERT(height > 0);
if (upright) {
std::swap(width, height);
}
const bool vertical = (small_screen_position == Settings::SmallScreenPosition::AboveLarge ||
small_screen_position == Settings::SmallScreenPosition::BelowLarge);
FramebufferLayout res{width, height, true, true, {}, {}, !upright};
// Split the window into two parts. Give proportional width to the smaller screen
// To do that, find the total emulation box and maximize that based on window size
u32 gap = (u32)(Settings::values.screen_gap.GetValue());
u32 large_height = swapped ? Core::kScreenBottomHeight : Core::kScreenTopHeight;
u32 small_height = static_cast<u32>(swapped ? Core::kScreenTopHeight / scale_factor
: Core::kScreenBottomHeight / scale_factor);
u32 large_width = swapped ? Core::kScreenBottomWidth : Core::kScreenTopWidth;
u32 small_width = static_cast<u32>(swapped ? Core::kScreenTopWidth / scale_factor
: Core::kScreenBottomWidth / scale_factor);
u32 emulation_width;
u32 emulation_height;
if (vertical) {
// width is just the larger size at this point
emulation_width = std::max(large_width, small_width);
emulation_height = large_height + small_height + gap;
} else {
emulation_width = large_width + small_width + gap;
emulation_height = std::max(large_height, small_height);
}
Common::Rectangle<u32> screen_window_area{0, 0, width, height};
Common::Rectangle<u32> total_rect{0, 0, emulation_width, emulation_height};
total_rect = MaxRectangle(screen_window_area, total_rect,
Settings::values.use_integer_scaling.GetValue());
total_rect = total_rect.TranslateX((width - total_rect.GetWidth()) / 2)
.TranslateY((height - total_rect.GetHeight()) / 2);
const float scale_amount = static_cast<float>(total_rect.GetHeight()) / emulation_height;
gap = static_cast<u32>(static_cast<float>(gap) * scale_amount);
Common::Rectangle<u32> large_screen =
Common::Rectangle<u32>{total_rect.left, total_rect.top,
static_cast<u32>(large_width * scale_amount + total_rect.left),
static_cast<u32>(large_height * scale_amount + total_rect.top)};
Common::Rectangle<u32> small_screen =
Common::Rectangle<u32>{total_rect.left, total_rect.top,
static_cast<u32>(small_width * scale_amount + total_rect.left),
static_cast<u32>(small_height * scale_amount + total_rect.top)};
switch (small_screen_position) {
case Settings::SmallScreenPosition::TopRight:
// Shift the small screen to the top right corner
small_screen = small_screen.TranslateX(large_screen.GetWidth() + gap);
small_screen = small_screen.TranslateY(large_screen.top - small_screen.top);
break;
case Settings::SmallScreenPosition::MiddleRight:
// Shift the small screen to the center right
small_screen = small_screen.TranslateX(large_screen.GetWidth() + gap);
small_screen =
small_screen.TranslateY(((large_screen.GetHeight() - small_screen.GetHeight()) / 2) +
large_screen.top - small_screen.top);
break;
case Settings::SmallScreenPosition::BottomRight:
// Shift the small screen to the bottom right corner
small_screen = small_screen.TranslateX(large_screen.GetWidth() + gap);
small_screen = small_screen.TranslateY(large_screen.bottom - small_screen.bottom);
break;
case Settings::SmallScreenPosition::TopLeft:
// shift the large screen to the upper right of the small screen
large_screen = large_screen.TranslateX(small_screen.GetWidth() + gap);
break;
case Settings::SmallScreenPosition::MiddleLeft:
// shift the small screen to the middle left and shift the large screen to its right
large_screen = large_screen.TranslateX(small_screen.GetWidth() + gap);
small_screen =
small_screen.TranslateY(((large_screen.GetHeight() - small_screen.GetHeight()) / 2));
break;
case Settings::SmallScreenPosition::BottomLeft:
// shift the small screen to the bottom left and shift the large screen to its right
large_screen = large_screen.TranslateX(small_screen.GetWidth() + gap);
small_screen = small_screen.TranslateY(large_screen.bottom - small_screen.bottom);
break;
case Settings::SmallScreenPosition::AboveLarge:
// shift the large screen down
large_screen = large_screen.TranslateY(small_screen.GetHeight() + gap);
// If the "large screen" is actually smaller, center it
if (large_screen.GetWidth() < total_rect.GetWidth()) {
large_screen =
large_screen.TranslateX((total_rect.GetWidth() - large_screen.GetWidth()) / 2);
}
small_screen =
small_screen.TranslateX((large_screen.left - total_rect.left) +
large_screen.GetWidth() / 2 - small_screen.GetWidth() / 2);
break;
case Settings::SmallScreenPosition::BelowLarge:
// shift the bottom_screen down and then over to the center
// If the "large screen" is actually smaller, center it
if (large_screen.GetWidth() < total_rect.GetWidth()) {
large_screen =
large_screen.TranslateX((total_rect.GetWidth() - large_screen.GetWidth()) / 2);
}
small_screen = small_screen.TranslateY(large_screen.GetHeight() + gap);
small_screen =
small_screen.TranslateX((large_screen.left - total_rect.left) +
large_screen.GetWidth() / 2 - small_screen.GetWidth() / 2);
break;
default:
UNREACHABLE();
break;
}
res.top_screen = swapped ? small_screen : large_screen;
res.bottom_screen = swapped ? large_screen : small_screen;
if (upright) {
return reverseLayout(res);
} else {
return res;
}
}
FramebufferLayout HybridScreenLayout(u32 width, u32 height, bool swapped, bool upright) {
ASSERT(width > 0);
ASSERT(height > 0);
if (upright) {
std::swap(width, height);
}
// Split the window into two parts. Give 2.25x width to the main screen,
// and make a bar on the right side with 1x width top screen and 1.25x width bottom screen
// To do that, find the total emulation box and maximize that based on window size
const float scale_factor = swapped ? 2.25 : 1.8;
const Settings::SmallScreenPosition pos = swapped ? Settings::SmallScreenPosition::TopRight
: Settings::SmallScreenPosition::BottomRight;
FramebufferLayout res = LargeFrameLayout(width, height, swapped, upright, scale_factor, pos);
const Common::Rectangle<u32> main = swapped ? res.bottom_screen : res.top_screen;
const Common::Rectangle<u32> small = swapped ? res.top_screen : res.bottom_screen;
res.additional_screen = Common::Rectangle<u32>{small.left, swapped ? small.bottom : main.top,
small.right, swapped ? main.bottom : small.top};
res.additional_screen_enabled = true;
if (upright) {
return reverseLayout(res);
} else {
return res;
}
}
FramebufferLayout SeparateWindowsLayout(u32 width, u32 height, bool is_secondary, bool upright) {
// When is_secondary is true, we disable the top screen, and enable the bottom screen.
// The same logic is found in the SingleFrameLayout using the is_swapped bool.
is_secondary = Settings::values.swap_screen ? !is_secondary : is_secondary;
return SingleFrameLayout(width, height, is_secondary, upright);
}
FramebufferLayout AndroidSecondaryLayout(u32 width, u32 height) {
const Settings::SecondaryDisplayLayout layout =
Settings::values.secondary_display_layout.GetValue();
switch (layout) {
case Settings::SecondaryDisplayLayout::TopScreenOnly:
return SingleFrameLayout(width, height, false, Settings::values.upright_screen.GetValue());
case Settings::SecondaryDisplayLayout::BottomScreenOnly:
return SingleFrameLayout(width, height, true, Settings::values.upright_screen.GetValue());
case Settings::SecondaryDisplayLayout::SideBySide:
return LargeFrameLayout(width, height, false, Settings::values.upright_screen.GetValue(),
1.0f, Settings::SmallScreenPosition::MiddleRight);
case Settings::SecondaryDisplayLayout::LargeScreen:
return LargeFrameLayout(width, height, false, Settings::values.upright_screen.GetValue(),
Settings::values.large_screen_proportion.GetValue(),
Settings::values.small_screen_position.GetValue());
case Settings::SecondaryDisplayLayout::Original:
return LargeFrameLayout(width, height, false, Settings::values.upright_screen.GetValue(),
1.0f, Settings::SmallScreenPosition::BelowLarge);
case Settings::SecondaryDisplayLayout::Hybrid:
return HybridScreenLayout(width, height, false, Settings::values.upright_screen.GetValue());
case Settings::SecondaryDisplayLayout::None:
// this should never happen - if "none" is set this method shouldn't run - but if it does,
// somehow, use ReversePrimary
case Settings::SecondaryDisplayLayout::ReversePrimary:
default:
return SingleFrameLayout(width, height, !Settings::values.swap_screen.GetValue(),
Settings::values.upright_screen.GetValue());
}
}
FramebufferLayout CustomFrameLayout(u32 width, u32 height, bool is_swapped, bool is_portrait_mode) {
ASSERT(width > 0);
ASSERT(height > 0);
const bool upright = Settings::values.upright_screen.GetValue();
if (upright) {
std::swap(width, height);
}
FramebufferLayout res{
width, height, true, true, {}, {}, !Settings::values.upright_screen, is_portrait_mode};
float opacity_value = Settings::values.custom_second_layer_opacity.GetValue() / 100.0f;
if (!is_portrait_mode && opacity_value < 1) {
is_swapped ? res.top_opacity = opacity_value : res.bottom_opacity = opacity_value;
}
const u16 top_x = is_portrait_mode ? Settings::values.custom_portrait_top_x.GetValue()
: Settings::values.custom_top_x.GetValue();
const u16 top_width = is_portrait_mode ? Settings::values.custom_portrait_top_width.GetValue()
: Settings::values.custom_top_width.GetValue();
const u16 top_y = is_portrait_mode ? Settings::values.custom_portrait_top_y.GetValue()
: Settings::values.custom_top_y.GetValue();
const u16 top_height = is_portrait_mode ? Settings::values.custom_portrait_top_height.GetValue()
: Settings::values.custom_top_height.GetValue();
const u16 bottom_x = is_portrait_mode ? Settings::values.custom_portrait_bottom_x.GetValue()
: Settings::values.custom_bottom_x.GetValue();
const u16 bottom_width = is_portrait_mode
? Settings::values.custom_portrait_bottom_width.GetValue()
: Settings::values.custom_bottom_width.GetValue();
const u16 bottom_y = is_portrait_mode ? Settings::values.custom_portrait_bottom_y.GetValue()
: Settings::values.custom_bottom_y.GetValue();
const u16 bottom_height = is_portrait_mode
? Settings::values.custom_portrait_bottom_height.GetValue()
: Settings::values.custom_bottom_height.GetValue();
Common::Rectangle<u32> top_screen{top_x, top_y, (u32)(top_x + top_width),
(u32)(top_y + top_height)};
Common::Rectangle<u32> bot_screen{bottom_x, bottom_y, (u32)(bottom_x + bottom_width),
(u32)(bottom_y + bottom_height)};
if (is_swapped) {
res.top_screen = bot_screen;
res.bottom_screen = top_screen;
} else {
res.top_screen = top_screen;
res.bottom_screen = bot_screen;
}
if (upright) {
return reverseLayout(res);
} else {
return res;
}
}
FramebufferLayout FrameLayoutFromResolutionScale(u32 res_scale, bool is_secondary,
bool is_portrait) {
u32 width, height, gap;
gap = (int)(Settings::values.screen_gap.GetValue()) * res_scale;
FramebufferLayout layout;
if (is_portrait) {
auto layout_option = Settings::values.portrait_layout_option.GetValue();
switch (layout_option) {
case Settings::PortraitLayoutOption::PortraitCustomLayout:
width = std::max(Settings::values.custom_portrait_top_x.GetValue() +
Settings::values.custom_portrait_top_width.GetValue(),
Settings::values.custom_portrait_bottom_x.GetValue() +
Settings::values.custom_portrait_bottom_width.GetValue());
height = std::max(Settings::values.custom_portrait_top_y.GetValue() +
Settings::values.custom_portrait_top_height.GetValue(),
Settings::values.custom_portrait_bottom_y.GetValue() +
Settings::values.custom_portrait_bottom_height.GetValue());
layout = CustomFrameLayout(width, height, Settings::values.swap_screen.GetValue(),
is_portrait);
break;
case Settings::PortraitLayoutOption::PortraitTopFullWidth:
width = Core::kScreenTopWidth * res_scale;
// clang-format off
height = (static_cast<int>(Core::kScreenTopHeight + Core::kScreenBottomHeight * 1.25) *
res_scale) + gap;
// clang-format on
layout =
PortraitTopFullFrameLayout(width, height, Settings::values.swap_screen.GetValue(),
Settings::values.upright_screen.GetValue());
break;
case Settings::PortraitLayoutOption::PortraitOriginal:
width = Core::kScreenTopWidth * res_scale;
height = (Core::kScreenTopHeight + Core::kScreenBottomHeight) * res_scale;
layout = PortraitOriginalLayout(width, height, Settings::values.swap_screen.GetValue());
break;
}
} else {
auto layout_option = Settings::values.layout_option.GetValue();
switch (layout_option) {
case Settings::LayoutOption::CustomLayout:
layout =
CustomFrameLayout(std::max(Settings::values.custom_top_x.GetValue() +
Settings::values.custom_top_width.GetValue(),
Settings::values.custom_bottom_x.GetValue() +
Settings::values.custom_bottom_width.GetValue()),
std::max(Settings::values.custom_top_y.GetValue() +
Settings::values.custom_top_height.GetValue(),
Settings::values.custom_bottom_y.GetValue() +
Settings::values.custom_bottom_height.GetValue()),
Settings::values.swap_screen.GetValue(), is_portrait);
break;
case Settings::LayoutOption::SingleScreen: {
const bool swap_screens = is_secondary || Settings::values.swap_screen.GetValue();
if (swap_screens) {
width = Core::kScreenBottomWidth * res_scale;
height = Core::kScreenBottomHeight * res_scale;
} else {
width = Core::kScreenTopWidth * res_scale;
height = Core::kScreenTopHeight * res_scale;
}
if (Settings::values.upright_screen.GetValue()) {
std::swap(width, height);
}
layout = SingleFrameLayout(width, height, swap_screens,
Settings::values.upright_screen.GetValue());
break;
}
case Settings::LayoutOption::LargeScreen: {
const bool swapped = Settings::values.swap_screen.GetValue();
const int largeWidth = swapped ? Core::kScreenBottomWidth : Core::kScreenTopWidth;
const int largeHeight = swapped ? Core::kScreenBottomHeight : Core::kScreenTopHeight;
const int smallWidth =
static_cast<int>((swapped ? Core::kScreenTopWidth : Core::kScreenBottomWidth) /
Settings::values.large_screen_proportion.GetValue());
const int smallHeight =
static_cast<int>((swapped ? Core::kScreenTopHeight : Core::kScreenBottomHeight) /
Settings::values.large_screen_proportion.GetValue());
if (Settings::values.small_screen_position.GetValue() ==
Settings::SmallScreenPosition::AboveLarge ||
Settings::values.small_screen_position.GetValue() ==
Settings::SmallScreenPosition::BelowLarge) {
// vertical, so height is sum of heights, width is larger of widths
width = std::max(largeWidth, smallWidth) * res_scale;
height = (largeHeight + smallHeight) * res_scale + gap;
} else {
width = (largeWidth + smallWidth) * res_scale + gap;
height = std::max(largeHeight, smallHeight) * res_scale;
}
if (Settings::values.upright_screen.GetValue()) {
std::swap(width, height);
}
layout = LargeFrameLayout(width, height, Settings::values.swap_screen.GetValue(),
Settings::values.upright_screen.GetValue(),
Settings::values.large_screen_proportion.GetValue(),
Settings::values.small_screen_position.GetValue());
break;
}
case Settings::LayoutOption::SideScreen:
width = (Core::kScreenTopWidth + Core::kScreenBottomWidth) * res_scale + gap;
height = Core::kScreenTopHeight * res_scale;
if (Settings::values.upright_screen.GetValue()) {
std::swap(width, height);
}
layout = LargeFrameLayout(width, height, Settings::values.swap_screen.GetValue(),
Settings::values.upright_screen.GetValue(), 1,
Settings::SmallScreenPosition::MiddleRight);
break;
case Settings::LayoutOption::HybridScreen:
height = Core::kScreenTopHeight * res_scale;
if (Settings::values.swap_screen.GetValue()) {
width = Core::kScreenBottomWidth;
} else {
width = Core::kScreenTopWidth;
}
// 2.25f comes from HybridScreenLayout's scale_factor value.
width = static_cast<int>((width + (Core::kScreenTopWidth / 2.25f)) * res_scale);
if (Settings::values.upright_screen.GetValue()) {
std::swap(width, height);
}
layout = HybridScreenLayout(width, height, Settings::values.swap_screen.GetValue(),
Settings::values.upright_screen.GetValue());
break;
case Settings::LayoutOption::Default:
default:
width = Core::kScreenTopWidth * res_scale;
height = (Core::kScreenTopHeight + Core::kScreenBottomHeight) * res_scale + gap;
if (Settings::values.upright_screen.GetValue()) {
std::swap(width, height);
}
layout = DefaultFrameLayout(width, height, Settings::values.swap_screen.GetValue(),
Settings::values.upright_screen.GetValue());
break;
}
}
return layout;
UNREACHABLE();
}
FramebufferLayout GetCardboardSettings(const FramebufferLayout& layout) {
u32 top_screen_left = 0;
u32 top_screen_top = 0;
u32 bottom_screen_left = 0;
u32 bottom_screen_top = 0;
u32 cardboard_screen_scale = Settings::values.cardboard_screen_size.GetValue();
u32 top_screen_width = ((layout.top_screen.GetWidth() / 2) * cardboard_screen_scale) / 100;
u32 top_screen_height = ((layout.top_screen.GetHeight() / 2) * cardboard_screen_scale) / 100;
u32 bottom_screen_width =
((layout.bottom_screen.GetWidth() / 2) * cardboard_screen_scale) / 100;
u32 bottom_screen_height =
((layout.bottom_screen.GetHeight() / 2) * cardboard_screen_scale) / 100;
const bool is_swapped = Settings::values.swap_screen.GetValue();
const bool is_portrait = layout.height > layout.width;
u32 cardboard_screen_width;
u32 cardboard_screen_height;
if (is_portrait) {
switch (Settings::values.portrait_layout_option.GetValue()) {
case Settings::PortraitLayoutOption::PortraitTopFullWidth:
case Settings::PortraitLayoutOption::PortraitOriginal:
cardboard_screen_width = top_screen_width;
cardboard_screen_height = top_screen_height + bottom_screen_height;
bottom_screen_left += (top_screen_width - bottom_screen_width) / 2;
if (is_swapped)
top_screen_top += bottom_screen_height;
else
bottom_screen_top += top_screen_height;
break;
default:
cardboard_screen_width = is_swapped ? bottom_screen_width : top_screen_width;
cardboard_screen_height = is_swapped ? bottom_screen_height : top_screen_height;
}
} else {
switch (Settings::values.layout_option.GetValue()) {
case Settings::LayoutOption::SideScreen:
cardboard_screen_width = top_screen_width + bottom_screen_width;
cardboard_screen_height = is_swapped ? bottom_screen_height : top_screen_height;
if (is_swapped)
top_screen_left += bottom_screen_width;
else
bottom_screen_left += top_screen_width;
break;
case Settings::LayoutOption::SingleScreen:
default:
cardboard_screen_width = is_swapped ? bottom_screen_width : top_screen_width;
cardboard_screen_height = is_swapped ? bottom_screen_height : top_screen_height;
break;
}
}
s32 cardboard_max_x_shift = (layout.width / 2 - cardboard_screen_width) / 2;
s32 cardboard_user_x_shift =
(Settings::values.cardboard_x_shift.GetValue() * cardboard_max_x_shift) / 100;
s32 cardboard_max_y_shift = (layout.height - cardboard_screen_height) / 2;
s32 cardboard_user_y_shift =
(Settings::values.cardboard_y_shift.GetValue() * cardboard_max_y_shift) / 100;
// Center the screens and apply user Y shift
FramebufferLayout new_layout = layout;
new_layout.top_screen.left = top_screen_left + cardboard_max_x_shift;
new_layout.top_screen.top = top_screen_top + cardboard_max_y_shift + cardboard_user_y_shift;
new_layout.bottom_screen.left = bottom_screen_left + cardboard_max_x_shift;
new_layout.bottom_screen.top =
bottom_screen_top + cardboard_max_y_shift + cardboard_user_y_shift;
// Set the X coordinates for the right eye and apply user X shift
new_layout.cardboard.top_screen_right_eye = new_layout.top_screen.left - cardboard_user_x_shift;
new_layout.top_screen.left += cardboard_user_x_shift;
new_layout.cardboard.bottom_screen_right_eye =
new_layout.bottom_screen.left - cardboard_user_x_shift;
new_layout.bottom_screen.left += cardboard_user_x_shift;
new_layout.cardboard.user_x_shift = cardboard_user_x_shift;
// Update right/bottom instead of passing new variables for width/height
new_layout.top_screen.right = new_layout.top_screen.left + top_screen_width;
new_layout.top_screen.bottom = new_layout.top_screen.top + top_screen_height;
new_layout.bottom_screen.right = new_layout.bottom_screen.left + bottom_screen_width;
new_layout.bottom_screen.bottom = new_layout.bottom_screen.top + bottom_screen_height;
return new_layout;
}
FramebufferLayout reverseLayout(FramebufferLayout layout) {
std::swap(layout.height, layout.width);
u32 oldLeft, oldRight, oldTop, oldBottom;
oldLeft = layout.top_screen.left;
oldRight = layout.top_screen.right;
oldTop = layout.top_screen.top;
oldBottom = layout.top_screen.bottom;
layout.top_screen.left = oldTop;
layout.top_screen.right = oldBottom;
layout.top_screen.top = layout.height - oldRight;
layout.top_screen.bottom = layout.height - oldLeft;
oldLeft = layout.bottom_screen.left;
oldRight = layout.bottom_screen.right;
oldTop = layout.bottom_screen.top;
oldBottom = layout.bottom_screen.bottom;
layout.bottom_screen.left = oldTop;
layout.bottom_screen.right = oldBottom;
layout.bottom_screen.top = layout.height - oldRight;
layout.bottom_screen.bottom = layout.height - oldLeft;
if (layout.additional_screen_enabled) {
oldLeft = layout.additional_screen.left;
oldRight = layout.additional_screen.right;
oldTop = layout.additional_screen.top;
oldBottom = layout.additional_screen.bottom;
layout.additional_screen.left = oldTop;
layout.additional_screen.right = oldBottom;
layout.additional_screen.top = layout.height - oldRight;
layout.additional_screen.bottom = layout.height - oldLeft;
}
return layout;
}
std::pair<unsigned, unsigned> GetMinimumSizeFromPortraitLayout() {
const u32 min_width = Core::kScreenTopWidth;
const u32 min_height = Core::kScreenTopHeight + Core::kScreenBottomHeight;
return std::make_pair(min_width, min_height);
}
std::pair<unsigned, unsigned> GetMinimumSizeFromLayout(Settings::LayoutOption layout,
bool upright_screen) {
u32 min_width, min_height;
switch (layout) {
case Settings::LayoutOption::SingleScreen:
#ifndef ANDROID
case Settings::LayoutOption::SeparateWindows:
#endif
min_width = Settings::values.swap_screen ? Core::kScreenBottomWidth : Core::kScreenTopWidth;
min_height = Core::kScreenBottomHeight;
break;
case Settings::LayoutOption::LargeScreen: {
const bool swapped = Settings::values.swap_screen.GetValue();
const int largeWidth = swapped ? Core::kScreenBottomWidth : Core::kScreenTopWidth;
const int largeHeight = swapped ? Core::kScreenBottomHeight : Core::kScreenTopHeight;
int smallWidth = swapped ? Core::kScreenTopWidth : Core::kScreenBottomWidth;
int smallHeight = swapped ? Core::kScreenTopHeight : Core::kScreenBottomHeight;
smallWidth =
static_cast<int>(smallWidth / Settings::values.large_screen_proportion.GetValue());
smallHeight =
static_cast<int>(smallHeight / Settings::values.large_screen_proportion.GetValue());
min_width = static_cast<u32>(Settings::values.small_screen_position.GetValue() ==
Settings::SmallScreenPosition::AboveLarge ||
Settings::values.small_screen_position.GetValue() ==
Settings::SmallScreenPosition::BelowLarge
? std::max(largeWidth, smallWidth)
: largeWidth + smallWidth);
min_height = static_cast<u32>(Settings::values.small_screen_position.GetValue() ==
Settings::SmallScreenPosition::AboveLarge ||
Settings::values.small_screen_position.GetValue() ==
Settings::SmallScreenPosition::BelowLarge
? largeHeight + smallHeight
: std::max(largeHeight, smallHeight));
break;
}
case Settings::LayoutOption::SideScreen:
min_width = Core::kScreenTopWidth + Core::kScreenBottomWidth;
min_height = Core::kScreenBottomHeight;
break;
case Settings::LayoutOption::Default:
default:
min_width = Core::kScreenTopWidth;
min_height = Core::kScreenTopHeight + Core::kScreenBottomHeight;
break;
}
if (upright_screen) {
return std::make_pair(min_height, min_width);
} else {
return std::make_pair(min_width, min_height);
}
}
float FramebufferLayout::GetAspectRatioValue(Settings::AspectRatio aspect_ratio) {
switch (aspect_ratio) {
case Settings::AspectRatio::R16_9:
return 9.0f / 16.0f;
case Settings::AspectRatio::R4_3:
return 3.0f / 4.0f;
case Settings::AspectRatio::R21_9:
return 9.0f / 21.0f;
case Settings::AspectRatio::R16_10:
return 10.0f / 16.0f;
default:
LOG_ERROR(Frontend, "Unknown aspect ratio enum value: {}",
static_cast<std::underlying_type<Settings::AspectRatio>::type>(aspect_ratio));
return 1.0f; // Arbitrary fallback value
}
}
} // namespace Layout