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https://github.com/azahar-emu/azahar
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89cab445d4
This is based on what was done using additional layouts, but modified to have a variable to control rotation and making it so Single Screen Layout behaves like Upright Single would, and Default Layout behaves like Upright Double would, when the new variable is used. Large Layout and Side Layout currently ignore the new variable. New variable still currently doesn't have a hotkey.
311 lines
15 KiB
C++
311 lines
15 KiB
C++
// Copyright 2016 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <cmath>
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#include "common/assert.h"
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#include "core/3ds.h"
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#include "core/frontend/framebuffer_layout.h"
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#include "core/settings.h"
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namespace Layout {
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static const float TOP_SCREEN_ASPECT_RATIO =
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static_cast<float>(Core::kScreenTopHeight) / Core::kScreenTopWidth;
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static const float BOT_SCREEN_ASPECT_RATIO =
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static_cast<float>(Core::kScreenBottomHeight) / Core::kScreenBottomWidth;
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static const float TOP_SCREEN_UPRIGHT_ASPECT_RATIO =
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static_cast<float>(Core::kScreenTopWidth) / Core::kScreenTopHeight;
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static const float BOT_SCREEN_UPRIGHT_ASPECT_RATIO =
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static_cast<float>(Core::kScreenBottomWidth) / Core::kScreenBottomHeight;
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u32 FramebufferLayout::GetScalingRatio() const {
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if (is_rotated) {
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return static_cast<u32>(((top_screen.GetWidth() - 1) / Core::kScreenTopWidth) + 1);
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} else {
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return static_cast<u32>(((top_screen.GetWidth() - 1) / Core::kScreenTopHeight) + 1);
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}
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}
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// Finds the largest size subrectangle contained in window area that is confined to the aspect ratio
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template <class T>
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static Common::Rectangle<T> maxRectangle(Common::Rectangle<T> window_area,
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float screen_aspect_ratio) {
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float scale = std::min(static_cast<float>(window_area.GetWidth()),
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window_area.GetHeight() / screen_aspect_ratio);
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return Common::Rectangle<T>{0, 0, static_cast<T>(std::round(scale)),
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static_cast<T>(std::round(scale * screen_aspect_ratio))};
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}
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FramebufferLayout DefaultFrameLayout(u32 width, u32 height, bool swapped, bool upright) {
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ASSERT(width > 0);
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ASSERT(height > 0);
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FramebufferLayout res{width, height, true, true, {}, {}, !upright};
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Common::Rectangle<u32> screen_window_area;
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Common::Rectangle<u32> top_screen;
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Common::Rectangle<u32> bot_screen;
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float emulation_aspect_ratio;
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if (upright) {
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// Default layout gives equal screen sizes to the top and bottom screen
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screen_window_area = {0, 0, width / 2, height};
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top_screen = maxRectangle(screen_window_area, TOP_SCREEN_UPRIGHT_ASPECT_RATIO);
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bot_screen = maxRectangle(screen_window_area, BOT_SCREEN_UPRIGHT_ASPECT_RATIO);
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// both screens width are taken into account by dividing by 2
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emulation_aspect_ratio = TOP_SCREEN_UPRIGHT_ASPECT_RATIO / 2;
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} else {
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// Default layout gives equal screen sizes to the top and bottom screen
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screen_window_area = {0, 0, width, height / 2};
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top_screen = maxRectangle(screen_window_area, TOP_SCREEN_ASPECT_RATIO);
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bot_screen = maxRectangle(screen_window_area, BOT_SCREEN_ASPECT_RATIO);
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// both screens height are taken into account by multiplying by 2
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emulation_aspect_ratio = TOP_SCREEN_ASPECT_RATIO * 2;
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}
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float window_aspect_ratio = static_cast<float>(height) / width;
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if (window_aspect_ratio < emulation_aspect_ratio) {
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// Window is wider than the emulation content => apply borders to the right and left sides
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if (upright) {
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// Recalculate the bottom screen to account for the height difference between right and
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// left
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screen_window_area = {0, 0, top_screen.GetWidth(), height};
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bot_screen = maxRectangle(screen_window_area, BOT_SCREEN_UPRIGHT_ASPECT_RATIO);
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bot_screen =
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bot_screen.TranslateY((top_screen.GetHeight() - bot_screen.GetHeight()) / 2);
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if (swapped) {
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bot_screen = bot_screen.TranslateX(width / 2 - bot_screen.GetWidth());
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} else {
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top_screen = top_screen.TranslateX(width / 2 - top_screen.GetWidth());
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}
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} else {
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top_screen =
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top_screen.TranslateX((screen_window_area.GetWidth() - top_screen.GetWidth()) / 2);
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bot_screen =
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bot_screen.TranslateX((screen_window_area.GetWidth() - bot_screen.GetWidth()) / 2);
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}
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} else {
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// Window is narrower than the emulation content => apply borders to the top and bottom
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if (upright) {
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top_screen = top_screen.TranslateY(
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(screen_window_area.GetHeight() - top_screen.GetHeight()) / 2);
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bot_screen = bot_screen.TranslateY(
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(screen_window_area.GetHeight() - bot_screen.GetHeight()) / 2);
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} else {
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// Recalculate the bottom screen to account for the width difference between top and
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// bottom
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screen_window_area = {0, 0, width, top_screen.GetHeight()};
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bot_screen = maxRectangle(screen_window_area, BOT_SCREEN_ASPECT_RATIO);
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bot_screen = bot_screen.TranslateX((top_screen.GetWidth() - bot_screen.GetWidth()) / 2);
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if (swapped) {
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bot_screen = bot_screen.TranslateY(height / 2 - bot_screen.GetHeight());
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} else {
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top_screen = top_screen.TranslateY(height / 2 - top_screen.GetHeight());
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}
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}
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}
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if (upright) {
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// Move the top screen to the right if we are swapped.
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res.top_screen = swapped ? top_screen.TranslateX(width / 2) : top_screen;
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res.bottom_screen = swapped ? bot_screen : bot_screen.TranslateX(width / 2);
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} else {
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// Move the top screen to the bottom if we are swapped.
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res.top_screen = swapped ? top_screen.TranslateY(height / 2) : top_screen;
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res.bottom_screen = swapped ? bot_screen : bot_screen.TranslateY(height / 2);
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}
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return res;
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}
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FramebufferLayout SingleFrameLayout(u32 width, u32 height, bool swapped, bool upright) {
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ASSERT(width > 0);
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ASSERT(height > 0);
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// The drawing code needs at least somewhat valid values for both screens
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// so just calculate them both even if the other isn't showing.
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FramebufferLayout res{width, height, !swapped, swapped, {}, {}, !upright};
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Common::Rectangle<u32> screen_window_area{0, 0, width, height};
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Common::Rectangle<u32> top_screen;
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Common::Rectangle<u32> bot_screen;
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float emulation_aspect_ratio;
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if (upright) {
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top_screen = maxRectangle(screen_window_area, TOP_SCREEN_UPRIGHT_ASPECT_RATIO);
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bot_screen = maxRectangle(screen_window_area, BOT_SCREEN_UPRIGHT_ASPECT_RATIO);
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emulation_aspect_ratio =
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(swapped) ? BOT_SCREEN_UPRIGHT_ASPECT_RATIO : TOP_SCREEN_UPRIGHT_ASPECT_RATIO;
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} else {
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top_screen = maxRectangle(screen_window_area, TOP_SCREEN_ASPECT_RATIO);
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bot_screen = maxRectangle(screen_window_area, BOT_SCREEN_ASPECT_RATIO);
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emulation_aspect_ratio = (swapped) ? BOT_SCREEN_ASPECT_RATIO : TOP_SCREEN_ASPECT_RATIO;
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}
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float window_aspect_ratio = static_cast<float>(height) / width;
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if (window_aspect_ratio < emulation_aspect_ratio) {
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top_screen =
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top_screen.TranslateX((screen_window_area.GetWidth() - top_screen.GetWidth()) / 2);
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bot_screen =
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bot_screen.TranslateX((screen_window_area.GetWidth() - bot_screen.GetWidth()) / 2);
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} else {
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top_screen = top_screen.TranslateY((height - top_screen.GetHeight()) / 2);
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bot_screen = bot_screen.TranslateY((height - bot_screen.GetHeight()) / 2);
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}
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res.top_screen = top_screen;
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res.bottom_screen = bot_screen;
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return res;
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}
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FramebufferLayout LargeFrameLayout(u32 width, u32 height, bool swapped, bool upright) {
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ASSERT(width > 0);
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ASSERT(height > 0);
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FramebufferLayout res{width, height, true, true, {}, {}, true};
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// Split the window into two parts. Give 4x width to the main screen and 1x width to the small
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// To do that, find the total emulation box and maximize that based on window size
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float window_aspect_ratio = static_cast<float>(height) / width;
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float emulation_aspect_ratio =
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swapped ? Core::kScreenBottomHeight * 4 /
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(Core::kScreenBottomWidth * 4.0f + Core::kScreenTopWidth)
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: Core::kScreenTopHeight * 4 /
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(Core::kScreenTopWidth * 4.0f + Core::kScreenBottomWidth);
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float large_screen_aspect_ratio = swapped ? BOT_SCREEN_ASPECT_RATIO : TOP_SCREEN_ASPECT_RATIO;
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float small_screen_aspect_ratio = swapped ? TOP_SCREEN_ASPECT_RATIO : BOT_SCREEN_ASPECT_RATIO;
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Common::Rectangle<u32> screen_window_area{0, 0, width, height};
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Common::Rectangle<u32> total_rect = maxRectangle(screen_window_area, emulation_aspect_ratio);
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Common::Rectangle<u32> large_screen = maxRectangle(total_rect, large_screen_aspect_ratio);
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Common::Rectangle<u32> fourth_size_rect = total_rect.Scale(.25f);
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Common::Rectangle<u32> small_screen = maxRectangle(fourth_size_rect, small_screen_aspect_ratio);
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if (window_aspect_ratio < emulation_aspect_ratio) {
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large_screen =
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large_screen.TranslateX((screen_window_area.GetWidth() - total_rect.GetWidth()) / 2);
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} else {
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large_screen = large_screen.TranslateY((height - total_rect.GetHeight()) / 2);
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}
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// Shift the small screen to the bottom right corner
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small_screen =
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small_screen.TranslateX(large_screen.right)
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.TranslateY(large_screen.GetHeight() + large_screen.top - small_screen.GetHeight());
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res.top_screen = swapped ? small_screen : large_screen;
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res.bottom_screen = swapped ? large_screen : small_screen;
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return res;
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}
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FramebufferLayout SideFrameLayout(u32 width, u32 height, bool swapped, bool upright) {
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ASSERT(width > 0);
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ASSERT(height > 0);
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FramebufferLayout res{width, height, true, true, {}, {}, true};
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// Aspect ratio of both screens side by side
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const float emulation_aspect_ratio = static_cast<float>(Core::kScreenTopHeight) /
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(Core::kScreenTopWidth + Core::kScreenBottomWidth);
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float window_aspect_ratio = static_cast<float>(height) / width;
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Common::Rectangle<u32> screen_window_area{0, 0, width, height};
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// Find largest Rectangle that can fit in the window size with the given aspect ratio
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Common::Rectangle<u32> screen_rect = maxRectangle(screen_window_area, emulation_aspect_ratio);
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// Find sizes of top and bottom screen
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Common::Rectangle<u32> top_screen = maxRectangle(screen_rect, TOP_SCREEN_ASPECT_RATIO);
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Common::Rectangle<u32> bot_screen = maxRectangle(screen_rect, BOT_SCREEN_ASPECT_RATIO);
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if (window_aspect_ratio < emulation_aspect_ratio) {
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// Apply borders to the left and right sides of the window.
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u32 shift_horizontal = (screen_window_area.GetWidth() - screen_rect.GetWidth()) / 2;
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top_screen = top_screen.TranslateX(shift_horizontal);
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bot_screen = bot_screen.TranslateX(shift_horizontal);
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} else {
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// Window is narrower than the emulation content => apply borders to the top and bottom
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u32 shift_vertical = (screen_window_area.GetHeight() - screen_rect.GetHeight()) / 2;
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top_screen = top_screen.TranslateY(shift_vertical);
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bot_screen = bot_screen.TranslateY(shift_vertical);
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}
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// Move the top screen to the right if we are swapped.
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res.top_screen = swapped ? top_screen.TranslateX(bot_screen.GetWidth()) : top_screen;
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res.bottom_screen = swapped ? bot_screen : bot_screen.TranslateX(top_screen.GetWidth());
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return res;
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}
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FramebufferLayout CustomFrameLayout(u32 width, u32 height) {
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ASSERT(width > 0);
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ASSERT(height > 0);
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FramebufferLayout res{width, height, true, true, {}, {}, !Settings::values.upright_screen};
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Common::Rectangle<u32> top_screen{
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Settings::values.custom_top_left, Settings::values.custom_top_top,
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Settings::values.custom_top_right, Settings::values.custom_top_bottom};
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Common::Rectangle<u32> bot_screen{
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Settings::values.custom_bottom_left, Settings::values.custom_bottom_top,
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Settings::values.custom_bottom_right, Settings::values.custom_bottom_bottom};
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res.top_screen = top_screen;
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res.bottom_screen = bot_screen;
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return res;
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}
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FramebufferLayout FrameLayoutFromResolutionScale(u32 res_scale) {
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FramebufferLayout layout;
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if (Settings::values.custom_layout == true) {
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layout = CustomFrameLayout(
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std::max(Settings::values.custom_top_right, Settings::values.custom_bottom_right),
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std::max(Settings::values.custom_top_bottom, Settings::values.custom_bottom_bottom));
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} else {
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int width, height;
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switch (Settings::values.layout_option) {
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case Settings::LayoutOption::SingleScreen:
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if (Settings::values.upright_screen) {
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if (Settings::values.swap_screen) {
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width = Core::kScreenBottomHeight * res_scale;
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height = Core::kScreenBottomWidth * res_scale;
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} else {
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width = Core::kScreenTopHeight * res_scale;
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height = Core::kScreenTopWidth * res_scale;
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}
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} else {
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if (Settings::values.swap_screen) {
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width = Core::kScreenBottomWidth * res_scale;
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height = Core::kScreenBottomHeight * res_scale;
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} else {
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width = Core::kScreenTopWidth * res_scale;
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height = Core::kScreenTopHeight * res_scale;
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}
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}
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layout = SingleFrameLayout(width, height, Settings::values.swap_screen,
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Settings::values.upright_screen);
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break;
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case Settings::LayoutOption::LargeScreen:
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if (Settings::values.swap_screen) {
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width = (Core::kScreenBottomWidth + Core::kScreenTopWidth / 4) * res_scale;
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height = Core::kScreenBottomHeight * res_scale;
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} else {
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width = (Core::kScreenTopWidth + Core::kScreenBottomWidth / 4) * res_scale;
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height = Core::kScreenTopHeight * res_scale;
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}
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layout = LargeFrameLayout(width, height, Settings::values.swap_screen,
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Settings::values.upright_screen);
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break;
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case Settings::LayoutOption::SideScreen:
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width = (Core::kScreenTopWidth + Core::kScreenBottomWidth) * res_scale;
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height = Core::kScreenTopHeight * res_scale;
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layout = SideFrameLayout(width, height, Settings::values.swap_screen,
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Settings::values.upright_screen);
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break;
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case Settings::LayoutOption::Default:
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default:
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if (Settings::values.upright_screen) {
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width = (Core::kScreenTopHeight + Core::kScreenBottomHeight) * res_scale;
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height = Core::kScreenTopWidth * res_scale;
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} else {
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width = Core::kScreenTopWidth * res_scale;
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height = (Core::kScreenTopHeight + Core::kScreenBottomHeight) * res_scale;
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}
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layout = DefaultFrameLayout(width, height, Settings::values.swap_screen,
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Settings::values.upright_screen);
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break;
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}
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}
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return layout;
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}
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} // namespace Layout
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