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Diffstat (limited to '')
-rw-r--r-- | src/common/emu_window.cpp | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/src/common/emu_window.cpp b/src/common/emu_window.cpp index 48bb35db5..6459d2f32 100644 --- a/src/common/emu_window.cpp +++ b/src/common/emu_window.cpp @@ -3,6 +3,7 @@ // Refer to the license.txt file included. #include "emu_window.h" +#include "video_core/video_core.h" void EmuWindow::KeyPressed(KeyMap::HostDeviceKey key) { Service::HID::PadState mapped_key = KeyMap::GetPadKey(key); @@ -15,3 +16,52 @@ void EmuWindow::KeyReleased(KeyMap::HostDeviceKey key) { Service::HID::PadButtonRelease(mapped_key); } + +EmuWindow::FramebufferLayout EmuWindow::FramebufferLayout::DefaultScreenLayout(unsigned width, unsigned height) { + ASSERT(width > 0); + ASSERT(height > 0); + + EmuWindow::FramebufferLayout res = { width, height, {}, {} }; + + float window_aspect_ratio = static_cast<float>(height) / width; + float emulation_aspect_ratio = static_cast<float>(VideoCore::kScreenTopHeight * 2) / + VideoCore::kScreenTopWidth; + + if (window_aspect_ratio > emulation_aspect_ratio) { + // Window is narrower than the emulation content => apply borders to the top and bottom + int viewport_height = static_cast<int>(std::round(emulation_aspect_ratio * width)); + + res.top_screen.left = 0; + res.top_screen.right = res.top_screen.left + width; + res.top_screen.top = (height - viewport_height) / 2; + res.top_screen.bottom = res.top_screen.top + viewport_height / 2; + + int bottom_width = static_cast<int>((static_cast<float>(VideoCore::kScreenBottomWidth) / + VideoCore::kScreenTopWidth) * (res.top_screen.right - res.top_screen.left)); + int bottom_border = ((res.top_screen.right - res.top_screen.left) - bottom_width) / 2; + + res.bottom_screen.left = bottom_border; + res.bottom_screen.right = res.bottom_screen.left + bottom_width; + res.bottom_screen.top = res.top_screen.bottom; + res.bottom_screen.bottom = res.bottom_screen.top + viewport_height / 2; + } else { + // Otherwise, apply borders to the left and right sides of the window. + int viewport_width = static_cast<int>(std::round(height / emulation_aspect_ratio)); + + res.top_screen.left = (width - viewport_width) / 2; + res.top_screen.right = res.top_screen.left + viewport_width; + res.top_screen.top = 0; + res.top_screen.bottom = res.top_screen.top + height / 2; + + int bottom_width = static_cast<int>((static_cast<float>(VideoCore::kScreenBottomWidth) / + VideoCore::kScreenTopWidth) * (res.top_screen.right - res.top_screen.left)); + int bottom_border = ((res.top_screen.right - res.top_screen.left) - bottom_width) / 2; + + res.bottom_screen.left = res.top_screen.left + bottom_border; + res.bottom_screen.right = res.bottom_screen.left + bottom_width; + res.bottom_screen.top = res.top_screen.bottom; + res.bottom_screen.bottom = res.bottom_screen.top + height / 2; + } + + return res; +} |