From 9960c49c217d2c1ae202bdacd475c9a47cda39b9 Mon Sep 17 00:00:00 2001 From: bunnei Date: Sat, 7 Mar 2015 17:21:19 -0500 Subject: Set framebuffer layout from EmuWindow. --- src/common/emu_window.cpp | 50 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) (limited to 'src/common/emu_window.cpp') diff --git a/src/common/emu_window.cpp b/src/common/emu_window.cpp index 48bb35db..1082ae26 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(int width, int height) { + ASSERT(width > 0); + ASSERT(height > 0); + + EmuWindow::FramebufferLayout res = { width, height, {}, {} }; + + float window_aspect_ratio = static_cast(height) / width; + float emulation_aspect_ratio = static_cast(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(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((static_cast(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(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((static_cast(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; +} -- cgit v1.2.3