suyu/src/core/frontend/emu_window.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

118 lines
4.3 KiB
C++

// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <cmath>
#include <mutex>
#include "core/frontend/emu_window.h"
#include "core/frontend/input.h"
#include "core/settings.h"
namespace Core::Frontend {
GraphicsContext::~GraphicsContext() = default;
class EmuWindow::TouchState : public Input::Factory<Input::TouchDevice>,
public std::enable_shared_from_this<TouchState> {
public:
std::unique_ptr<Input::TouchDevice> Create(const Common::ParamPackage&) override {
return std::make_unique<Device>(shared_from_this());
}
std::mutex mutex;
bool touch_pressed = false; ///< True if touchpad area is currently pressed, otherwise false
float touch_x = 0.0f; ///< Touchpad X-position
float touch_y = 0.0f; ///< Touchpad Y-position
private:
class Device : public Input::TouchDevice {
public:
explicit Device(std::weak_ptr<TouchState>&& touch_state) : touch_state(touch_state) {}
std::tuple<float, float, bool> GetStatus() const override {
if (auto state = touch_state.lock()) {
std::lock_guard guard{state->mutex};
return std::make_tuple(state->touch_x, state->touch_y, state->touch_pressed);
}
return std::make_tuple(0.0f, 0.0f, false);
}
private:
std::weak_ptr<TouchState> touch_state;
};
};
EmuWindow::EmuWindow() {
// TODO: Find a better place to set this.
config.min_client_area_size =
std::make_pair(Layout::MinimumSize::Width, Layout::MinimumSize::Height);
active_config = config;
touch_state = std::make_shared<TouchState>();
Input::RegisterFactory<Input::TouchDevice>("emu_window", touch_state);
}
EmuWindow::~EmuWindow() {
Input::UnregisterFactory<Input::TouchDevice>("emu_window");
}
/**
* Check if the given x/y coordinates are within the touchpad specified by the framebuffer layout
* @param layout FramebufferLayout object describing the framebuffer size and screen positions
* @param framebuffer_x Framebuffer x-coordinate to check
* @param framebuffer_y Framebuffer y-coordinate to check
* @return True if the coordinates are within the touchpad, otherwise false
*/
static bool IsWithinTouchscreen(const Layout::FramebufferLayout& layout, unsigned framebuffer_x,
unsigned framebuffer_y) {
return (framebuffer_y >= layout.screen.top && framebuffer_y < layout.screen.bottom &&
framebuffer_x >= layout.screen.left && framebuffer_x < layout.screen.right);
}
std::tuple<unsigned, unsigned> EmuWindow::ClipToTouchScreen(unsigned new_x, unsigned new_y) const {
new_x = std::max(new_x, framebuffer_layout.screen.left);
new_x = std::min(new_x, framebuffer_layout.screen.right - 1);
new_y = std::max(new_y, framebuffer_layout.screen.top);
new_y = std::min(new_y, framebuffer_layout.screen.bottom - 1);
return std::make_tuple(new_x, new_y);
}
void EmuWindow::TouchPressed(unsigned framebuffer_x, unsigned framebuffer_y) {
if (!IsWithinTouchscreen(framebuffer_layout, framebuffer_x, framebuffer_y))
return;
std::lock_guard guard{touch_state->mutex};
touch_state->touch_x =
static_cast<float>(framebuffer_x - framebuffer_layout.screen.left) /
static_cast<float>(framebuffer_layout.screen.right - framebuffer_layout.screen.left);
touch_state->touch_y =
static_cast<float>(framebuffer_y - framebuffer_layout.screen.top) /
static_cast<float>(framebuffer_layout.screen.bottom - framebuffer_layout.screen.top);
touch_state->touch_pressed = true;
}
void EmuWindow::TouchReleased() {
std::lock_guard guard{touch_state->mutex};
touch_state->touch_pressed = false;
touch_state->touch_x = 0;
touch_state->touch_y = 0;
}
void EmuWindow::TouchMoved(unsigned framebuffer_x, unsigned framebuffer_y) {
if (!touch_state->touch_pressed)
return;
if (!IsWithinTouchscreen(framebuffer_layout, framebuffer_x, framebuffer_y))
std::tie(framebuffer_x, framebuffer_y) = ClipToTouchScreen(framebuffer_x, framebuffer_y);
TouchPressed(framebuffer_x, framebuffer_y);
}
void EmuWindow::UpdateCurrentFramebufferLayout(unsigned width, unsigned height) {
NotifyFramebufferLayoutChanged(Layout::DefaultFrameLayout(width, height));
}
} // namespace Core::Frontend