b8328593fe
If the mouse position for a mouse move/drag would take it outside the emulated screen dimensions, clip the coordinates to the emulated screen dimensions. Qt and GLFW will report negative coordinates for mouse positions to the left, or above citra window. Added restriction to mouse coordinates passed to touchmoved by Qt/GLFW to be greater or equal to zero.
120 lines
5 KiB
C++
120 lines
5 KiB
C++
// Copyright 2014 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 "emu_window.h"
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#include "video_core/video_core.h"
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void EmuWindow::KeyPressed(KeyMap::HostDeviceKey key) {
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pad_state.hex |= KeyMap::GetPadKey(key).hex;
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}
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void EmuWindow::KeyReleased(KeyMap::HostDeviceKey key) {
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pad_state.hex &= ~KeyMap::GetPadKey(key).hex;
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}
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/**
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* Check if the given x/y coordinates are within the touchpad specified by the framebuffer layout
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* @param layout FramebufferLayout object describing the framebuffer size and screen positions
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* @param framebuffer_x Framebuffer x-coordinate to check
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* @param framebuffer_y Framebuffer y-coordinate to check
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* @return True if the coordinates are within the touchpad, otherwise false
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*/
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static bool IsWithinTouchscreen(const EmuWindow::FramebufferLayout& layout, unsigned framebuffer_x,
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unsigned framebuffer_y) {
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return (framebuffer_y >= layout.bottom_screen.top &&
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framebuffer_y < layout.bottom_screen.bottom &&
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framebuffer_x >= layout.bottom_screen.left &&
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framebuffer_x < layout.bottom_screen.right);
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}
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std::tuple<unsigned,unsigned> EmuWindow::ClipToTouchScreen(unsigned new_x, unsigned new_y) {
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new_x = std::max(new_x, framebuffer_layout.bottom_screen.left);
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new_x = std::min(new_x, framebuffer_layout.bottom_screen.right-1);
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new_y = std::max(new_y, framebuffer_layout.bottom_screen.top);
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new_y = std::min(new_y, framebuffer_layout.bottom_screen.bottom-1);
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return std::make_tuple(new_x, new_y);
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}
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void EmuWindow::TouchPressed(unsigned framebuffer_x, unsigned framebuffer_y) {
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if (!IsWithinTouchscreen(framebuffer_layout, framebuffer_x, framebuffer_y))
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return;
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touch_x = VideoCore::kScreenBottomWidth * (framebuffer_x - framebuffer_layout.bottom_screen.left) /
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(framebuffer_layout.bottom_screen.right - framebuffer_layout.bottom_screen.left);
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touch_y = VideoCore::kScreenBottomHeight * (framebuffer_y - framebuffer_layout.bottom_screen.top) /
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(framebuffer_layout.bottom_screen.bottom - framebuffer_layout.bottom_screen.top);
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touch_pressed = true;
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pad_state.touch = 1;
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}
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void EmuWindow::TouchReleased() {
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touch_pressed = false;
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touch_x = 0;
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touch_y = 0;
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pad_state.touch = 0;
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}
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void EmuWindow::TouchMoved(unsigned framebuffer_x, unsigned framebuffer_y) {
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if (!touch_pressed)
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return;
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if (!IsWithinTouchscreen(framebuffer_layout, framebuffer_x, framebuffer_y))
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std::tie(framebuffer_x, framebuffer_y) = ClipToTouchScreen(framebuffer_x, framebuffer_y);
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TouchPressed(framebuffer_x, framebuffer_y);
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}
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EmuWindow::FramebufferLayout EmuWindow::FramebufferLayout::DefaultScreenLayout(unsigned width, unsigned height) {
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ASSERT(width > 0);
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ASSERT(height > 0);
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EmuWindow::FramebufferLayout res = { width, height, {}, {} };
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float window_aspect_ratio = static_cast<float>(height) / width;
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float emulation_aspect_ratio = static_cast<float>(VideoCore::kScreenTopHeight * 2) /
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VideoCore::kScreenTopWidth;
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if (window_aspect_ratio > emulation_aspect_ratio) {
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// Window is narrower than the emulation content => apply borders to the top and bottom
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int viewport_height = static_cast<int>(std::round(emulation_aspect_ratio * width));
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res.top_screen.left = 0;
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res.top_screen.right = res.top_screen.left + width;
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res.top_screen.top = (height - viewport_height) / 2;
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res.top_screen.bottom = res.top_screen.top + viewport_height / 2;
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int bottom_width = static_cast<int>((static_cast<float>(VideoCore::kScreenBottomWidth) /
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VideoCore::kScreenTopWidth) * (res.top_screen.right - res.top_screen.left));
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int bottom_border = ((res.top_screen.right - res.top_screen.left) - bottom_width) / 2;
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res.bottom_screen.left = bottom_border;
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res.bottom_screen.right = res.bottom_screen.left + bottom_width;
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res.bottom_screen.top = res.top_screen.bottom;
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res.bottom_screen.bottom = res.bottom_screen.top + viewport_height / 2;
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} else {
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// Otherwise, apply borders to the left and right sides of the window.
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int viewport_width = static_cast<int>(std::round(height / emulation_aspect_ratio));
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res.top_screen.left = (width - viewport_width) / 2;
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res.top_screen.right = res.top_screen.left + viewport_width;
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res.top_screen.top = 0;
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res.top_screen.bottom = res.top_screen.top + height / 2;
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int bottom_width = static_cast<int>((static_cast<float>(VideoCore::kScreenBottomWidth) /
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VideoCore::kScreenTopWidth) * (res.top_screen.right - res.top_screen.left));
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int bottom_border = ((res.top_screen.right - res.top_screen.left) - bottom_width) / 2;
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res.bottom_screen.left = res.top_screen.left + bottom_border;
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res.bottom_screen.right = res.bottom_screen.left + bottom_width;
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res.bottom_screen.top = res.top_screen.bottom;
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res.bottom_screen.bottom = res.bottom_screen.top + height / 2;
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}
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return res;
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}
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