// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include <cstdlib>
#include <string>
// Let’s use our own GL header, instead of one from GLFW.
#include <glad/glad.h>
#define GLFW_INCLUDE_NONE
#include <GLFW/glfw3.h>
#include "common/assert.h"
#include "common/key_map.h"
#include "common/logging/log.h"
#include "common/scm_rev.h"
#include "common/string_util.h"
#include "video_core/video_core.h"
#include "core/settings.h"
#include "core/hle/service/hid/hid.h"
#include "citra/emu_window/emu_window_glfw.h"
EmuWindow_GLFW* EmuWindow_GLFW::GetEmuWindow(GLFWwindow* win) {
return static_cast<EmuWindow_GLFW*>(glfwGetWindowUserPointer(win));
}
void EmuWindow_GLFW::OnMouseButtonEvent(GLFWwindow* win, int button, int action, int mods) {
if (button == GLFW_MOUSE_BUTTON_LEFT) {
auto emu_window = GetEmuWindow(win);
auto layout = emu_window->GetFramebufferLayout();
double x, y;
glfwGetCursorPos(win, &x, &y);
if (action == GLFW_PRESS)
emu_window->TouchPressed(static_cast<unsigned>(x), static_cast<unsigned>(y));
else if (action == GLFW_RELEASE)
emu_window->TouchReleased();
}
}
void EmuWindow_GLFW::OnCursorPosEvent(GLFWwindow* win, double x, double y) {
GetEmuWindow(win)->TouchMoved(static_cast<unsigned>(std::max(x, 0.0)), static_cast<unsigned>(std::max(y, 0.0)));
}
/// Called by GLFW when a key event occurs
void EmuWindow_GLFW::OnKeyEvent(GLFWwindow* win, int key, int scancode, int action, int mods) {
auto emu_window = GetEmuWindow(win);
int keyboard_id = emu_window->keyboard_id;
if (action == GLFW_PRESS) {
emu_window->KeyPressed({key, keyboard_id});
} else if (action == GLFW_RELEASE) {
emu_window->KeyReleased({key, keyboard_id});
}
}
/// Whether the window is still open, and a close request hasn't yet been sent
const bool EmuWindow_GLFW::IsOpen() {
return glfwWindowShouldClose(m_render_window) == 0;
}
void EmuWindow_GLFW::OnFramebufferResizeEvent(GLFWwindow* win, int width, int height) {
GetEmuWindow(win)->NotifyFramebufferLayoutChanged(EmuWindow::FramebufferLayout::DefaultScreenLayout(width, height));
}
void EmuWindow_GLFW::OnClientAreaResizeEvent(GLFWwindow* win, int width, int height) {
// NOTE: GLFW provides no proper way to set a minimal window size.
// Hence, we just ignore the corresponding EmuWindow hint.
OnFramebufferResizeEvent(win, width, height);
}
/// EmuWindow_GLFW constructor
EmuWindow_GLFW::EmuWindow_GLFW() {
keyboard_id = KeyMap::NewDeviceId();
ReloadSetKeymaps();
glfwSetErrorCallback([](int error, const char *desc){
LOG_ERROR(Frontend, "GLFW 0x%08x: %s", error, desc);
});
// Initialize the window
if(glfwInit() != GL_TRUE) {
LOG_CRITICAL(Frontend, "Failed to initialize GLFW! Exiting...");
exit(1);
}
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
// GLFW on OSX requires these window hints to be set to create a 3.2+ GL context.
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
std::string window_title = Common::StringFromFormat("Citra | %s-%s", Common::g_scm_branch, Common::g_scm_desc);
m_render_window = glfwCreateWindow(VideoCore::kScreenTopWidth,
(VideoCore::kScreenTopHeight + VideoCore::kScreenBottomHeight),
window_title.c_str(), nullptr, nullptr);
if (m_render_window == nullptr) {
LOG_CRITICAL(Frontend, "Failed to create GLFW window! Exiting...");
exit(1);
}
glfwSetWindowUserPointer(m_render_window, this);
// Notify base interface about window state
int width, height;
glfwGetFramebufferSize(m_render_window, &width, &height);
OnFramebufferResizeEvent(m_render_window, width, height);
glfwGetWindowSize(m_render_window, &width, &height);
OnClientAreaResizeEvent(m_render_window, width, height);
// Setup callbacks
glfwSetKeyCallback(m_render_window, OnKeyEvent);
glfwSetMouseButtonCallback(m_render_window, OnMouseButtonEvent);
glfwSetCursorPosCallback(m_render_window, OnCursorPosEvent);
glfwSetFramebufferSizeCallback(m_render_window, OnFramebufferResizeEvent);
glfwSetWindowSizeCallback(m_render_window, OnClientAreaResizeEvent);
DoneCurrent();
}
/// EmuWindow_GLFW destructor
EmuWindow_GLFW::~EmuWindow_GLFW() {
glfwTerminate();
}
/// Swap buffers to display the next frame
void EmuWindow_GLFW::SwapBuffers() {
glfwSwapBuffers(m_render_window);
}
/// Polls window events
void EmuWindow_GLFW::PollEvents() {
glfwPollEvents();
}
/// Makes the GLFW OpenGL context current for the caller thread
void EmuWindow_GLFW::MakeCurrent() {
glfwMakeContextCurrent(m_render_window);
}
/// Releases (dunno if this is the "right" word) the GLFW context from the caller thread
void EmuWindow_GLFW::DoneCurrent() {
glfwMakeContextCurrent(nullptr);
}
void EmuWindow_GLFW::ReloadSetKeymaps() {
for (int i = 0; i < Settings::NativeInput::NUM_INPUTS; ++i) {
KeyMap::SetKeyMapping({Settings::values.input_mappings[Settings::NativeInput::All[i]], keyboard_id}, Service::HID::pad_mapping[i]);
}
}
void EmuWindow_GLFW::OnMinimalClientAreaChangeRequest(const std::pair<unsigned,unsigned>& minimal_size) {
std::pair<int,int> current_size;
glfwGetWindowSize(m_render_window, ¤t_size.first, ¤t_size.second);
DEBUG_ASSERT((int)minimal_size.first > 0 && (int)minimal_size.second > 0);
int new_width = std::max(current_size.first, (int)minimal_size.first);
int new_height = std::max(current_size.second, (int)minimal_size.second);
if (current_size != std::make_pair(new_width, new_height))
glfwSetWindowSize(m_render_window, new_width, new_height);
}