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// Copyright 2016 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include <cstdlib>
#include <string>
#define SDL_MAIN_HANDLED
#include <SDL.h>
#include <glad/glad.h>
#include "citra/emu_window/emu_window_sdl2.h"
#include "common/key_map.h"
#include "common/logging/log.h"
#include "common/scm_rev.h"
#include "common/string_util.h"
#include "core/hle/service/hid/hid.h"
#include "core/settings.h"
#include "video_core/video_core.h"
void EmuWindow_SDL2::OnMouseMotion(s32 x, s32 y) {
TouchMoved((unsigned)std::max(x, 0), (unsigned)std::max(y, 0));
}
void EmuWindow_SDL2::OnMouseButton(u32 button, u8 state, s32 x, s32 y) {
if (button != SDL_BUTTON_LEFT)
return;
if (state == SDL_PRESSED) {
TouchPressed((unsigned)std::max(x, 0), (unsigned)std::max(y, 0));
} else {
TouchReleased();
}
}
void EmuWindow_SDL2::OnKeyEvent(int key, u8 state) {
if (state == SDL_PRESSED) {
KeyMap::PressKey(*this, {key, keyboard_id});
} else if (state == SDL_RELEASED) {
KeyMap::ReleaseKey(*this, {key, keyboard_id});
}
}
bool EmuWindow_SDL2::IsOpen() const {
return is_open;
}
void EmuWindow_SDL2::OnResize() {
int width, height;
SDL_GetWindowSize(render_window, &width, &height);
NotifyFramebufferLayoutChanged(
EmuWindow::FramebufferLayout::DefaultScreenLayout(width, height));
}
EmuWindow_SDL2::EmuWindow_SDL2() {
keyboard_id = KeyMap::NewDeviceId();
ReloadSetKeymaps();
SDL_SetMainReady();
// Initialize the window
if (SDL_Init(SDL_INIT_VIDEO) < 0) {
LOG_CRITICAL(Frontend, "Failed to initialize SDL2! Exiting...");
exit(1);
}
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, 0);
std::string window_title =
Common::StringFromFormat("Citra | %s-%s", Common::g_scm_branch, Common::g_scm_desc);
render_window = SDL_CreateWindow(
window_title.c_str(),
SDL_WINDOWPOS_UNDEFINED, // x position
SDL_WINDOWPOS_UNDEFINED, // y position
VideoCore::kScreenTopWidth, VideoCore::kScreenTopHeight + VideoCore::kScreenBottomHeight,
SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
if (render_window == nullptr) {
LOG_CRITICAL(Frontend, "Failed to create SDL2 window! Exiting...");
exit(1);
}
gl_context = SDL_GL_CreateContext(render_window);
if (gl_context == nullptr) {
LOG_CRITICAL(Frontend, "Failed to create SDL2 GL context! Exiting...");
exit(1);
}
if (!gladLoadGLLoader(static_cast<GLADloadproc>(SDL_GL_GetProcAddress))) {
LOG_CRITICAL(Frontend, "Failed to initialize GL functions! Exiting...");
exit(1);
}
OnResize();
OnMinimalClientAreaChangeRequest(GetActiveConfig().min_client_area_size);
SDL_PumpEvents();
SDL_GL_SetSwapInterval(Settings::values.use_vsync);
DoneCurrent();
}
EmuWindow_SDL2::~EmuWindow_SDL2() {
SDL_GL_DeleteContext(gl_context);
SDL_Quit();
}
void EmuWindow_SDL2::SwapBuffers() {
SDL_GL_SwapWindow(render_window);
}
void EmuWindow_SDL2::PollEvents() {
SDL_Event event;
// SDL_PollEvent returns 0 when there are no more events in the event queue
while (SDL_PollEvent(&event)) {
switch (event.type) {
case SDL_WINDOWEVENT:
switch (event.window.event) {
case SDL_WINDOWEVENT_SIZE_CHANGED:
case SDL_WINDOWEVENT_RESIZED:
case SDL_WINDOWEVENT_MAXIMIZED:
case SDL_WINDOWEVENT_RESTORED:
case SDL_WINDOWEVENT_MINIMIZED:
OnResize();
break;
case SDL_WINDOWEVENT_CLOSE:
is_open = false;
break;
}
break;
case SDL_KEYDOWN:
case SDL_KEYUP:
OnKeyEvent(static_cast<int>(event.key.keysym.scancode), event.key.state);
break;
case SDL_MOUSEMOTION:
OnMouseMotion(event.motion.x, event.motion.y);
break;
case SDL_MOUSEBUTTONDOWN:
case SDL_MOUSEBUTTONUP:
OnMouseButton(event.button.button, event.button.state, event.button.x, event.button.y);
break;
case SDL_QUIT:
is_open = false;
break;
}
}
}
void EmuWindow_SDL2::MakeCurrent() {
SDL_GL_MakeCurrent(render_window, gl_context);
}
void EmuWindow_SDL2::DoneCurrent() {
SDL_GL_MakeCurrent(render_window, nullptr);
}
void EmuWindow_SDL2::ReloadSetKeymaps() {
KeyMap::ClearKeyMapping(keyboard_id);
for (int i = 0; i < Settings::NativeInput::NUM_INPUTS; ++i) {
KeyMap::SetKeyMapping(
{Settings::values.input_mappings[Settings::NativeInput::All[i]], keyboard_id},
KeyMap::mapping_targets[i]);
}
}
void EmuWindow_SDL2::OnMinimalClientAreaChangeRequest(
const std::pair<unsigned, unsigned>& minimal_size) {
SDL_SetWindowMinimumSize(render_window, minimal_size.first, minimal_size.second);
}
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