// 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 <fmt/format.h>
#include <glad/glad.h>
#include "common/logging/log.h"
#include "common/scm_rev.h"
#include "common/string_util.h"
#include "core/settings.h"
#include "input_common/keyboard.h"
#include "input_common/main.h"
#include "input_common/motion_emu.h"
#include "input_common/sdl/sdl.h"
#include "yuzu_cmd/emu_window/emu_window_sdl2.h"
void EmuWindow_SDL2::OnMouseMotion(s32 x, s32 y) {
TouchMoved((unsigned)std::max(x, 0), (unsigned)std::max(y, 0));
InputCommon::GetMotionEmu()->Tilt(x, y);
}
void EmuWindow_SDL2::OnMouseButton(u32 button, u8 state, s32 x, s32 y) {
if (button == SDL_BUTTON_LEFT) {
if (state == SDL_PRESSED) {
TouchPressed((unsigned)std::max(x, 0), (unsigned)std::max(y, 0));
} else {
TouchReleased();
}
} else if (button == SDL_BUTTON_RIGHT) {
if (state == SDL_PRESSED) {
InputCommon::GetMotionEmu()->BeginTilt(x, y);
} else {
InputCommon::GetMotionEmu()->EndTilt();
}
}
}
std::pair<unsigned, unsigned> EmuWindow_SDL2::TouchToPixelPos(float touch_x, float touch_y) const {
int w, h;
SDL_GetWindowSize(render_window, &w, &h);
touch_x *= w;
touch_y *= h;
return {static_cast<unsigned>(std::max(std::round(touch_x), 0.0f)),
static_cast<unsigned>(std::max(std::round(touch_y), 0.0f))};
}
void EmuWindow_SDL2::OnFingerDown(float x, float y) {
// TODO(NeatNit): keep track of multitouch using the fingerID and a dictionary of some kind
// This isn't critical because the best we can do when we have that is to average them, like the
// 3DS does
const auto [px, py] = TouchToPixelPos(x, y);
TouchPressed(px, py);
}
void EmuWindow_SDL2::OnFingerMotion(float x, float y) {
const auto [px, py] = TouchToPixelPos(x, y);
TouchMoved(px, py);
}
void EmuWindow_SDL2::OnFingerUp() {
TouchReleased();
}
void EmuWindow_SDL2::OnKeyEvent(int key, u8 state) {
if (state == SDL_PRESSED) {
InputCommon::GetKeyboard()->PressKey(key);
} else if (state == SDL_RELEASED) {
InputCommon::GetKeyboard()->ReleaseKey(key);
}
}
bool EmuWindow_SDL2::IsOpen() const {
return is_open;
}
void EmuWindow_SDL2::OnResize() {
int width, height;
SDL_GetWindowSize(render_window, &width, &height);
UpdateCurrentFramebufferLayout(width, height);
}
void EmuWindow_SDL2::Fullscreen() {
if (SDL_SetWindowFullscreen(render_window, SDL_WINDOW_FULLSCREEN) == 0) {
return;
}
LOG_ERROR(Frontend, "Fullscreening failed: {}", SDL_GetError());
// Try a different fullscreening method
LOG_INFO(Frontend, "Attempting to use borderless fullscreen...");
if (SDL_SetWindowFullscreen(render_window, SDL_WINDOW_FULLSCREEN_DESKTOP) == 0) {
return;
}
LOG_ERROR(Frontend, "Borderless fullscreening failed: {}", SDL_GetError());
// Fallback algorithm: Maximise window.
// Works on all systems (unless something is seriously wrong), so no fallback for this one.
LOG_INFO(Frontend, "Falling back on a maximised window...");
SDL_MaximizeWindow(render_window);
}
bool EmuWindow_SDL2::SupportsRequiredGLExtensions() {
std::vector<std::string> unsupported_ext;
if (!GLAD_GL_ARB_program_interface_query)
unsupported_ext.push_back("ARB_program_interface_query");
if (!GLAD_GL_ARB_separate_shader_objects)
unsupported_ext.push_back("ARB_separate_shader_objects");
if (!GLAD_GL_ARB_vertex_attrib_binding)
unsupported_ext.push_back("ARB_vertex_attrib_binding");
if (!GLAD_GL_ARB_vertex_type_10f_11f_11f_rev)
unsupported_ext.push_back("ARB_vertex_type_10f_11f_11f_rev");
if (!GLAD_GL_ARB_texture_mirror_clamp_to_edge)
unsupported_ext.push_back("ARB_texture_mirror_clamp_to_edge");
if (!GLAD_GL_ARB_base_instance)
unsupported_ext.push_back("ARB_base_instance");
if (!GLAD_GL_ARB_texture_storage)
unsupported_ext.push_back("ARB_texture_storage");
if (!GLAD_GL_ARB_multi_bind)
unsupported_ext.push_back("ARB_multi_bind");
if (!GLAD_GL_ARB_copy_image)
unsupported_ext.push_back("ARB_copy_image");
// Extensions required to support some texture formats.
if (!GLAD_GL_EXT_texture_compression_s3tc)
unsupported_ext.push_back("EXT_texture_compression_s3tc");
if (!GLAD_GL_ARB_texture_compression_rgtc)
unsupported_ext.push_back("ARB_texture_compression_rgtc");
if (!GLAD_GL_ARB_texture_compression_bptc)
unsupported_ext.push_back("ARB_texture_compression_bptc");
if (!GLAD_GL_ARB_depth_buffer_float)
unsupported_ext.push_back("ARB_depth_buffer_float");
for (const std::string& ext : unsupported_ext)
LOG_CRITICAL(Frontend, "Unsupported GL extension: {}", ext);
return unsupported_ext.empty();
}
EmuWindow_SDL2::EmuWindow_SDL2(bool fullscreen) {
InputCommon::Init();
SDL_SetMainReady();
// Initialize the window
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK) < 0) {
LOG_CRITICAL(Frontend, "Failed to initialize SDL2! Exiting...");
exit(1);
}
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 4);
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 = fmt::format("yuzu {} | {}-{}", Common::g_build_fullname,
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
Layout::ScreenUndocked::Width, Layout::ScreenUndocked::Height,
SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
if (render_window == nullptr) {
LOG_CRITICAL(Frontend, "Failed to create SDL2 window! {}", SDL_GetError());
exit(1);
}
if (fullscreen) {
Fullscreen();
}
gl_context = SDL_GL_CreateContext(render_window);
if (gl_context == nullptr) {
LOG_CRITICAL(Frontend, "Failed to create SDL2 GL context! {}", SDL_GetError());
exit(1);
}
if (!gladLoadGLLoader(static_cast<GLADloadproc>(SDL_GL_GetProcAddress))) {
LOG_CRITICAL(Frontend, "Failed to initialize GL functions! {}", SDL_GetError());
exit(1);
}
if (!SupportsRequiredGLExtensions()) {
LOG_CRITICAL(Frontend, "GPU does not support all required OpenGL extensions! Exiting...");
exit(1);
}
OnResize();
OnMinimalClientAreaChangeRequest(GetActiveConfig().min_client_area_size);
SDL_PumpEvents();
SDL_GL_SetSwapInterval(false);
LOG_INFO(Frontend, "yuzu Version: {} | {}-{}", Common::g_build_fullname, Common::g_scm_branch,
Common::g_scm_desc);
DoneCurrent();
}
EmuWindow_SDL2::~EmuWindow_SDL2() {
InputCommon::SDL::CloseSDLJoysticks();
SDL_GL_DeleteContext(gl_context);
SDL_Quit();
InputCommon::Shutdown();
}
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:
// ignore if it came from touch
if (event.button.which != SDL_TOUCH_MOUSEID)
OnMouseMotion(event.motion.x, event.motion.y);
break;
case SDL_MOUSEBUTTONDOWN:
case SDL_MOUSEBUTTONUP:
// ignore if it came from touch
if (event.button.which != SDL_TOUCH_MOUSEID) {
OnMouseButton(event.button.button, event.button.state, event.button.x,
event.button.y);
}
break;
case SDL_FINGERDOWN:
OnFingerDown(event.tfinger.x, event.tfinger.y);
break;
case SDL_FINGERMOTION:
OnFingerMotion(event.tfinger.x, event.tfinger.y);
break;
case SDL_FINGERUP:
OnFingerUp();
break;
case SDL_QUIT:
is_open = false;
break;
default:
InputCommon::SDL::HandleGameControllerEvent(event);
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::OnMinimalClientAreaChangeRequest(
const std::pair<unsigned, unsigned>& minimal_size) {
SDL_SetWindowMinimumSize(render_window, minimal_size.first, minimal_size.second);
}