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suyu/src/core/frontend/framebuffer_layout.cpp
Lioncash 39c8d18feb core/CMakeLists: Make some warnings errors
Makes our error coverage a little more consistent across the board by
applying it to Linux side of things as well. This also makes it more
consistent with the warning settings in other libraries in the project.

This also updates httplib to 0.7.9, as there are several warning
cleanups made that allow us to enable several warnings as errors.
2020-10-13 13:16:49 -04:00

76 lines
2.8 KiB
C++

// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <cmath>
#include "common/assert.h"
#include "core/frontend/framebuffer_layout.h"
#include "core/settings.h"
namespace Layout {
// Finds the largest size subrectangle contained in window area that is confined to the aspect ratio
template <class T>
static Common::Rectangle<T> MaxRectangle(Common::Rectangle<T> window_area,
float screen_aspect_ratio) {
const float scale = std::min(static_cast<float>(window_area.GetWidth()),
static_cast<float>(window_area.GetHeight()) / screen_aspect_ratio);
return Common::Rectangle<T>{0, 0, static_cast<T>(std::round(scale)),
static_cast<T>(std::round(scale * screen_aspect_ratio))};
}
FramebufferLayout DefaultFrameLayout(u32 width, u32 height) {
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.
FramebufferLayout res{width, height, false, {}};
const float window_aspect_ratio = static_cast<float>(height) / static_cast<float>(width);
const float emulation_aspect_ratio = EmulationAspectRatio(
static_cast<AspectRatio>(Settings::values.aspect_ratio.GetValue()), window_aspect_ratio);
const Common::Rectangle<u32> screen_window_area{0, 0, width, height};
Common::Rectangle<u32> screen = MaxRectangle(screen_window_area, emulation_aspect_ratio);
if (window_aspect_ratio < emulation_aspect_ratio) {
screen = screen.TranslateX((screen_window_area.GetWidth() - screen.GetWidth()) / 2);
} else {
screen = screen.TranslateY((height - screen.GetHeight()) / 2);
}
res.screen = screen;
return res;
}
FramebufferLayout FrameLayoutFromResolutionScale(u32 res_scale) {
u32 width, height;
if (Settings::values.use_docked_mode) {
width = ScreenDocked::Width * res_scale;
height = ScreenDocked::Height * res_scale;
} else {
width = ScreenUndocked::Width * res_scale;
height = ScreenUndocked::Height * res_scale;
}
return DefaultFrameLayout(width, height);
}
float EmulationAspectRatio(AspectRatio aspect, float window_aspect_ratio) {
switch (aspect) {
case AspectRatio::Default:
return static_cast<float>(ScreenUndocked::Height) / ScreenUndocked::Width;
case AspectRatio::R4_3:
return 3.0f / 4.0f;
case AspectRatio::R21_9:
return 9.0f / 21.0f;
case AspectRatio::StretchToWindow:
return window_aspect_ratio;
default:
return static_cast<float>(ScreenUndocked::Height) / ScreenUndocked::Width;
}
}
} // namespace Layout