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854 lines
30 KiB
C++
854 lines
30 KiB
C++
//
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// main.cpp
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// Clock Signal
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//
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// Created by Thomas Harte on 04/11/2017.
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// Copyright 2017 Thomas Harte. All rights reserved.
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//
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#include <algorithm>
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#include <array>
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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#include <iostream>
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#include <memory>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <SDL2/SDL.h>
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#include "../../Analyser/Static/StaticAnalyser.hpp"
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#include "../../Machines/Utility/MachineForTarget.hpp"
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#include "../../Machines/MediaTarget.hpp"
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#include "../../Machines/CRTMachine.hpp"
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#include "../../Concurrency/BestEffortUpdater.hpp"
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#include "../../Activity/Observer.hpp"
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#include "../../Outputs/OpenGL/Primitives/Rectangle.hpp"
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#include "../../Outputs/OpenGL/ScanTarget.hpp"
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#include "../../Outputs/OpenGL/Screenshot.hpp"
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namespace {
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struct BestEffortUpdaterDelegate: public Concurrency::BestEffortUpdater::Delegate {
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void update(Concurrency::BestEffortUpdater *updater, Time::Seconds duration, bool did_skip_previous_update) override {
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machine->crt_machine()->run_for(duration);
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}
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Machine::DynamicMachine *machine;
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};
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struct SpeakerDelegate: public Outputs::Speaker::Speaker::Delegate {
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// This is set to a relatively large number for now.
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static const int buffer_size = 1024;
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void speaker_did_complete_samples(Outputs::Speaker::Speaker *speaker, const std::vector<int16_t> &buffer) override {
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std::lock_guard<std::mutex> lock_guard(audio_buffer_mutex_);
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if(audio_buffer_.size() > buffer_size) {
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audio_buffer_.erase(audio_buffer_.begin(), audio_buffer_.end() - buffer_size);
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}
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audio_buffer_.insert(audio_buffer_.end(), buffer.begin(), buffer.end());
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}
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void audio_callback(Uint8 *stream, int len) {
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updater->update();
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std::lock_guard<std::mutex> lock_guard(audio_buffer_mutex_);
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std::size_t sample_length = static_cast<std::size_t>(len) / sizeof(int16_t);
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std::size_t copy_length = std::min(sample_length, audio_buffer_.size());
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int16_t *target = static_cast<int16_t *>(static_cast<void *>(stream));
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std::memcpy(stream, audio_buffer_.data(), copy_length * sizeof(int16_t));
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if(copy_length < sample_length) {
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std::memset(&target[copy_length], 0, (sample_length - copy_length) * sizeof(int16_t));
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}
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audio_buffer_.erase(audio_buffer_.begin(), audio_buffer_.begin() + copy_length);
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}
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static void SDL_audio_callback(void *userdata, Uint8 *stream, int len) {
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reinterpret_cast<SpeakerDelegate *>(userdata)->audio_callback(stream, len);
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}
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SDL_AudioDeviceID audio_device;
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Concurrency::BestEffortUpdater *updater;
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std::mutex audio_buffer_mutex_;
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std::vector<int16_t> audio_buffer_;
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};
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class ActivityObserver: public Activity::Observer {
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public:
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ActivityObserver(Activity::Source *source, float aspect_ratio) {
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// Get the suorce to supply all LEDs and drives.
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source->set_activity_observer(this);
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// The objective is to display drives on one side of the screen, other LEDs on the other. Drives
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// may or may not have LEDs and this code intends to display only those which do; so a quick
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// comparative processing of the two lists is called for.
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// Strip the list of drives to only those which have LEDs. Thwy're the ones that'll be displayed.
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drives_.resize(std::remove_if(drives_.begin(), drives_.end(), [this](const std::string &string) {
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return std::find(leds_.begin(), leds_.end(), string) == leds_.end();
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}) - drives_.begin());
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// Remove from the list of LEDs any which are drives. Those will be represented separately.
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leds_.resize(std::remove_if(leds_.begin(), leds_.end(), [this](const std::string &string) {
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return std::find(drives_.begin(), drives_.end(), string) != drives_.end();
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}) - leds_.begin());
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set_aspect_ratio(aspect_ratio);
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}
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void set_aspect_ratio(float aspect_ratio) {
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lights_.clear();
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// Generate a bunch of LEDs for connected drives.
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const float height = 0.05f;
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const float width = height / aspect_ratio;
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const float right_x = 1.0f - 2.0f * width;
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float y = 1.0f - 2.0f * height;
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for(const auto &drive: drives_) {
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// TODO: use std::make_unique as below, if/when formally embracing C++14.
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lights_.emplace(std::make_pair(drive, std::unique_ptr<Outputs::Display::OpenGL::Rectangle>(new Outputs::Display::OpenGL::Rectangle(right_x, y, width, height))));
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y -= height * 2.0f;
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}
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/*
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This would generate LEDs for things other than drives; I'm declining for now
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due to the inexpressiveness of just painting a rectangle.
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const float left_x = -1.0f + 2.0f * width;
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y = 1.0f - 2.0f * height;
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for(const auto &led: leds_) {
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lights_.emplace(std::make_pair(led, std::make_unique<OpenGL::Rectangle>(left_x, y, width, height)));
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y -= height * 2.0f;
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}
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*/
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}
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void draw() {
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for(const auto &lit_led: lit_leds_) {
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if(blinking_leds_.find(lit_led) == blinking_leds_.end() && lights_.find(lit_led) != lights_.end())
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lights_[lit_led]->draw(0.0, 0.8, 0.0);
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}
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blinking_leds_.clear();
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}
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private:
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std::vector<std::string> leds_;
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void register_led(const std::string &name) override {
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leds_.push_back(name);
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}
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std::vector<std::string> drives_;
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void register_drive(const std::string &name) override {
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drives_.push_back(name);
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}
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void set_led_status(const std::string &name, bool lit) override {
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if(lit) lit_leds_.insert(name);
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else lit_leds_.erase(name);
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}
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void announce_drive_event(const std::string &name, DriveEvent event) override {
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blinking_leds_.insert(name);
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}
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std::map<std::string, std::unique_ptr<Outputs::Display::OpenGL::Rectangle>> lights_;
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std::set<std::string> lit_leds_;
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std::set<std::string> blinking_leds_;
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};
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bool KeyboardKeyForSDLScancode(SDL_Keycode scancode, Inputs::Keyboard::Key &key) {
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#define BIND(x, y) case SDL_SCANCODE_##x: key = Inputs::Keyboard::Key::y; break;
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switch(scancode) {
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default: return false;
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BIND(F1, F1) BIND(F2, F2) BIND(F3, F3) BIND(F4, F4) BIND(F5, F5) BIND(F6, F6)
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BIND(F7, F7) BIND(F8, F8) BIND(F9, F9) BIND(F10, F10) BIND(F11, F11) BIND(F12, F12)
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BIND(1, k1) BIND(2, k2) BIND(3, k3) BIND(4, k4) BIND(5, k5)
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BIND(6, k6) BIND(7, k7) BIND(8, k8) BIND(9, k9) BIND(0, k0)
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BIND(Q, Q) BIND(W, W) BIND(E, E) BIND(R, R) BIND(T, T)
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BIND(Y, Y) BIND(U, U) BIND(I, I) BIND(O, O) BIND(P, P)
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BIND(A, A) BIND(S, S) BIND(D, D) BIND(F, F) BIND(G, G)
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BIND(H, H) BIND(J, J) BIND(K, K) BIND(L, L)
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BIND(Z, Z) BIND(X, X) BIND(C, C) BIND(V, V)
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BIND(B, B) BIND(N, N) BIND(M, M)
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BIND(KP_7, Keypad7) BIND(KP_8, Keypad8) BIND(KP_9, Keypad9)
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BIND(KP_4, Keypad4) BIND(KP_5, Keypad5) BIND(KP_6, Keypad6)
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BIND(KP_1, Keypad1) BIND(KP_2, Keypad2) BIND(KP_3, Keypad3)
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BIND(KP_0, Keypad0)
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BIND(ESCAPE, Escape)
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BIND(PRINTSCREEN, PrintScreen) BIND(SCROLLLOCK, ScrollLock) BIND(PAUSE, Pause)
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BIND(GRAVE, BackTick) BIND(MINUS, Hyphen) BIND(EQUALS, Equals) BIND(BACKSPACE, Backspace)
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BIND(TAB, Tab)
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BIND(LEFTBRACKET, OpenSquareBracket) BIND(RIGHTBRACKET, CloseSquareBracket)
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BIND(BACKSLASH, Backslash)
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BIND(CAPSLOCK, CapsLock) BIND(SEMICOLON, Semicolon)
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BIND(APOSTROPHE, Quote) BIND(RETURN, Enter)
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BIND(LSHIFT, LeftShift) BIND(COMMA, Comma) BIND(PERIOD, FullStop)
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BIND(SLASH, ForwardSlash) BIND(RSHIFT, RightShift)
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BIND(LCTRL, LeftControl) BIND(LALT, LeftOption) BIND(LGUI, LeftMeta)
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BIND(SPACE, Space)
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BIND(RCTRL, RightControl) BIND(RALT, RightOption) BIND(RGUI, RightMeta)
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BIND(LEFT, Left) BIND(RIGHT, Right) BIND(UP, Up) BIND(DOWN, Down)
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BIND(INSERT, Insert) BIND(HOME, Home) BIND(PAGEUP, PageUp)
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BIND(DELETE, Delete) BIND(END, End) BIND(PAGEDOWN, PageDown)
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BIND(NUMLOCKCLEAR, NumLock) BIND(KP_DIVIDE, KeypadSlash) BIND(KP_MULTIPLY, KeypadAsterisk)
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BIND(KP_PLUS, KeypadPlus) BIND(KP_MINUS, KeypadMinus) BIND(KP_ENTER, KeypadEnter)
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BIND(KP_DECIMAL, KeypadDecimalPoint)
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BIND(KP_EQUALS, KeypadEquals)
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BIND(HELP, Help)
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// SDL doesn't seem to have scancodes for hash or keypad delete?
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}
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#undef BIND
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return true;
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}
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struct ParsedArguments {
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std::string file_name;
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Configurable::SelectionSet selections;
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};
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/*! Parses an argc/argv pair to discern program arguments. */
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ParsedArguments parse_arguments(int argc, char *argv[]) {
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ParsedArguments arguments;
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for(int index = 1; index < argc; ++index) {
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char *arg = argv[index];
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// Accepted format is:
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//
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// --flag sets a Boolean option to true.
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// --flag=value sets the value for a list option.
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// name sets the file name to load.
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// Anything starting with a dash always makes a selection; otherwise it's a file name.
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if(arg[0] == '-') {
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while(*arg == '-') arg++;
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// Check for an equals sign, to discern a Boolean selection from a list selection.
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std::string argument = arg;
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std::size_t split_index = argument.find("=");
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if(split_index == std::string::npos) {
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arguments.selections[argument].reset(new Configurable::BooleanSelection(true));
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} else {
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std::string name = argument.substr(0, split_index);
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std::string value = argument.substr(split_index+1, std::string::npos);
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arguments.selections[name].reset(new Configurable::ListSelection(value));
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}
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} else {
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arguments.file_name = arg;
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}
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}
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return arguments;
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}
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std::string final_path_component(const std::string &path) {
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// An empty path has no final component.
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if(path.empty()) {
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return "";
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}
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// Find the last slash...
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auto final_slash = path.find_last_of("/\\");
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// If no slash was found at all, return the whole path.
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if(final_slash == std::string::npos) {
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return path;
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}
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// If a slash was found in the final position, remove it and recurse.
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if(final_slash == path.size() - 1) {
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return final_path_component(path.substr(0, path.size() - 1));
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}
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// Otherwise return everything from just after the slash to the end of the path.
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return path.substr(final_slash+1, path.size() - final_slash - 1);
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}
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/*!
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Executes @c command and returns its STDOUT.
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*/
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std::string system_get(const char *command) {
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std::unique_ptr<FILE, decltype((pclose))> pipe(popen(command, "r"), pclose);
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if(!pipe) return "";
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std::string result;
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while(!feof(pipe.get())) {
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std::array<char, 256> buffer;
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if(fgets(buffer.data(), buffer.size(), pipe.get()) != nullptr)
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result += buffer.data();
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}
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return result;
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}
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/*!
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Maintains a communicative window title.
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*/
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class DynamicWindowTitler {
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public:
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DynamicWindowTitler(SDL_Window *window) : window_(window), file_name_(SDL_GetWindowTitle(window)) {}
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std::string window_title() {
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if(!mouse_is_captured_) return file_name_;
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return file_name_ + " (press control+escape to release mouse)";
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}
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void set_mouse_is_captured(bool is_captured) {
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mouse_is_captured_ = is_captured;
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update_window_title();
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}
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private:
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void update_window_title() {
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SDL_SetWindowTitle(window_, window_title().c_str());
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}
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bool mouse_is_captured_ = false;
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SDL_Window *window_ = nullptr;
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const std::string file_name_;
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};
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}
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int main(int argc, char *argv[]) {
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SDL_Window *window = nullptr;
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// Attempt to parse arguments.
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ParsedArguments arguments = parse_arguments(argc, argv);
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// This may be printed either as
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const std::string usage_suffix = " [file] [OPTIONS] [--rompath={path to ROMs}]";
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// Print a help message if requested.
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if(arguments.selections.find("help") != arguments.selections.end() || arguments.selections.find("h") != arguments.selections.end()) {
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std::cout << "Usage: " << final_path_component(argv[0]) << usage_suffix << std::endl;
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std::cout << "Use alt+enter to toggle full screen display. Use control+shift+V to paste text." << std::endl;
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std::cout << "Required machine type and configuration is determined from the file. Machines with further options:" << std::endl << std::endl;
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auto all_options = Machine::AllOptionsByMachineName();
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for(const auto &machine_options: all_options) {
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std::cout << machine_options.first << ":" << std::endl;
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for(const auto &option: machine_options.second) {
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std::cout << '\t' << "--" << option->short_name;
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Configurable::ListOption *list_option = dynamic_cast<Configurable::ListOption *>(option.get());
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if(list_option) {
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std::cout << "={";
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bool is_first = true;
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for(const auto &option: list_option->options) {
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if(!is_first) std::cout << '|';
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is_first = false;
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std::cout << option;
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}
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std::cout << "}";
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}
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std::cout << std::endl;
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}
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std::cout << std::endl;
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}
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return EXIT_SUCCESS;
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}
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// Perform a sanity check on arguments.
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if(arguments.file_name.empty()) {
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std::cerr << "Usage: " << final_path_component(argv[0]) << usage_suffix << std::endl;
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std::cerr << "Use --help to learn more about available options." << std::endl;
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return EXIT_FAILURE;
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}
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// Determine the machine for the supplied file.
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const auto targets = Analyser::Static::GetTargets(arguments.file_name);
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if(targets.empty()) {
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std::cerr << "Cannot open " << arguments.file_name << "; no target machine found" << std::endl;
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return EXIT_FAILURE;
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}
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Concurrency::BestEffortUpdater updater;
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BestEffortUpdaterDelegate best_effort_updater_delegate;
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SpeakerDelegate speaker_delegate;
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// For vanilla SDL purposes, assume system ROMs can be found in one of:
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//
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// /usr/local/share/CLK/[system];
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// /usr/share/CLK/[system]; or
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// [user-supplied path]/[system]
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std::vector<ROMMachine::ROM> requested_roms;
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ROMMachine::ROMFetcher rom_fetcher = [&requested_roms, &arguments]
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(const std::vector<ROMMachine::ROM> &roms) -> std::vector<std::unique_ptr<std::vector<uint8_t>>> {
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requested_roms.insert(requested_roms.end(), roms.begin(), roms.end());
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std::vector<std::string> paths = {
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"/usr/local/share/CLK/",
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"/usr/share/CLK/"
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};
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if(arguments.selections.find("rompath") != arguments.selections.end()) {
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std::string user_path = arguments.selections["rompath"]->list_selection()->value;
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if(user_path.back() != '/') {
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paths.push_back(user_path + "/");
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} else {
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paths.push_back(user_path);
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}
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}
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std::vector<std::unique_ptr<std::vector<uint8_t>>> results;
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for(const auto &rom: roms) {
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FILE *file = nullptr;
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for(const auto &path: paths) {
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std::string local_path = path + rom.machine_name + "/" + rom.file_name;
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file = std::fopen(local_path.c_str(), "rb");
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if(file) break;
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}
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if(!file) {
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results.emplace_back(nullptr);
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continue;
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}
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std::unique_ptr<std::vector<uint8_t>> data(new std::vector<uint8_t>);
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std::fseek(file, 0, SEEK_END);
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data->resize(std::ftell(file));
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std::fseek(file, 0, SEEK_SET);
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std::size_t read = fread(data->data(), 1, data->size(), file);
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std::fclose(file);
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if(read == data->size())
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results.emplace_back(std::move(data));
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else
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results.emplace_back(nullptr);
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}
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return results;
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};
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// Create and configure a machine.
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::Machine::Error error;
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std::unique_ptr<::Machine::DynamicMachine> machine(::Machine::MachineForTargets(targets, rom_fetcher, error));
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if(!machine) {
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switch(error) {
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default: break;
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case ::Machine::Error::MissingROM:
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std::cerr << "Could not find system ROMs; please install to /usr/local/share/CLK/ or /usr/share/CLK/, or provide a --rompath." << std::endl;
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std::cerr << "One or more of the following was needed but not found:" << std::endl;
|
|
for(const auto &rom: requested_roms) {
|
|
std::cerr << rom.machine_name << '/' << rom.file_name;
|
|
if(!rom.descriptive_name.empty()) {
|
|
std::cerr << " (" << rom.descriptive_name << ")";
|
|
}
|
|
std::cerr << std::endl;
|
|
}
|
|
break;
|
|
}
|
|
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
best_effort_updater_delegate.machine = machine.get();
|
|
speaker_delegate.updater = &updater;
|
|
updater.set_delegate(&best_effort_updater_delegate);
|
|
|
|
// Attempt to set up video and audio.
|
|
if(SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO) < 0) {
|
|
std::cerr << "SDL could not initialize! SDL_Error: " << SDL_GetError() << std::endl;
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
// Ask for no depth buffer, a core profile and vsync-aligned rendering.
|
|
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 0);
|
|
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
|
|
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
|
|
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 2);
|
|
SDL_GL_SetSwapInterval(1);
|
|
|
|
window = SDL_CreateWindow( final_path_component(arguments.file_name).c_str(),
|
|
SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
|
|
400, 300,
|
|
SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE);
|
|
|
|
DynamicWindowTitler window_titler(window);
|
|
|
|
SDL_GLContext gl_context = nullptr;
|
|
if(window) {
|
|
gl_context = SDL_GL_CreateContext(window);
|
|
}
|
|
if(!window || !gl_context) {
|
|
std::cerr << "Could not create " << (window ? "OpenGL context" : "window");
|
|
std::cerr << "; reported error: \"" << SDL_GetError() << "\"" << std::endl;
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
SDL_GL_MakeCurrent(window, gl_context);
|
|
|
|
GLint target_framebuffer = 0;
|
|
glGetIntegerv(GL_FRAMEBUFFER_BINDING, &target_framebuffer);
|
|
|
|
// Setup output, assuming a CRT machine for now, and prepare a best-effort updater.
|
|
Outputs::Display::OpenGL::ScanTarget scan_target(target_framebuffer);
|
|
machine->crt_machine()->set_scan_target(&scan_target);
|
|
|
|
// For now, lie about audio output intentions.
|
|
auto speaker = machine->crt_machine()->get_speaker();
|
|
if(speaker) {
|
|
// Create an audio pipe.
|
|
SDL_AudioSpec desired_audio_spec;
|
|
SDL_AudioSpec obtained_audio_spec;
|
|
|
|
SDL_zero(desired_audio_spec);
|
|
desired_audio_spec.freq = 48000; // TODO: how can I get SDL to reveal the output rate of this machine?
|
|
desired_audio_spec.format = AUDIO_S16;
|
|
desired_audio_spec.channels = 1;
|
|
desired_audio_spec.samples = SpeakerDelegate::buffer_size;
|
|
desired_audio_spec.callback = SpeakerDelegate::SDL_audio_callback;
|
|
desired_audio_spec.userdata = &speaker_delegate;
|
|
|
|
speaker_delegate.audio_device = SDL_OpenAudioDevice(nullptr, 0, &desired_audio_spec, &obtained_audio_spec, SDL_AUDIO_ALLOW_FREQUENCY_CHANGE);
|
|
|
|
speaker->set_output_rate(obtained_audio_spec.freq, desired_audio_spec.samples);
|
|
speaker->set_delegate(&speaker_delegate);
|
|
SDL_PauseAudioDevice(speaker_delegate.audio_device, 0);
|
|
}
|
|
|
|
int window_width, window_height;
|
|
SDL_GetWindowSize(window, &window_width, &window_height);
|
|
|
|
Configurable::Device *const configurable_device = machine->configurable_device();
|
|
if(configurable_device) {
|
|
// Establish user-friendly options by default.
|
|
configurable_device->set_selections(configurable_device->get_user_friendly_selections());
|
|
|
|
// Consider transcoding any list selections that map to Boolean options.
|
|
for(const auto &option: configurable_device->get_options()) {
|
|
// Check for a corresponding selection.
|
|
auto selection = arguments.selections.find(option->short_name);
|
|
if(selection != arguments.selections.end()) {
|
|
// Transcode selection if necessary.
|
|
if(dynamic_cast<Configurable::BooleanOption *>(option.get())) {
|
|
arguments.selections[selection->first] = std::unique_ptr<Configurable::Selection>(selection->second->boolean_selection());
|
|
}
|
|
|
|
if(dynamic_cast<Configurable::ListOption *>(option.get())) {
|
|
arguments.selections[selection->first] = std::unique_ptr<Configurable::Selection>(selection->second->list_selection());
|
|
}
|
|
}
|
|
}
|
|
|
|
// Apply the user's actual selections to override the defaults.
|
|
configurable_device->set_selections(arguments.selections);
|
|
}
|
|
|
|
// If this is a joystick machine, check for and open attached joysticks.
|
|
/*!
|
|
Provides a wrapper for SDL_Joystick pointers that can keep track
|
|
of historic hat values.
|
|
*/
|
|
class SDLJoystick {
|
|
public:
|
|
SDLJoystick(SDL_Joystick *joystick) : joystick_(joystick) {
|
|
hat_values_.resize(SDL_JoystickNumHats(joystick));
|
|
}
|
|
|
|
~SDLJoystick() {
|
|
SDL_JoystickClose(joystick_);
|
|
}
|
|
|
|
/// @returns The underlying SDL_Joystick.
|
|
SDL_Joystick *get() {
|
|
return joystick_;
|
|
}
|
|
|
|
/// @returns A reference to the storage for the previous state of hat @c c.
|
|
Uint8 &last_hat_value(int c) {
|
|
return hat_values_[c];
|
|
}
|
|
|
|
/// @returns The logic OR of all stored hat states.
|
|
Uint8 hat_values() {
|
|
Uint8 value = 0;
|
|
for(const auto hat_value: hat_values_) {
|
|
value |= hat_value;
|
|
}
|
|
return value;
|
|
}
|
|
|
|
private:
|
|
SDL_Joystick *joystick_;
|
|
std::vector<Uint8> hat_values_;
|
|
};
|
|
std::vector<SDLJoystick> joysticks;
|
|
JoystickMachine::Machine *const joystick_machine = machine->joystick_machine();
|
|
if(joystick_machine) {
|
|
SDL_InitSubSystem(SDL_INIT_JOYSTICK);
|
|
for(int c = 0; c < SDL_NumJoysticks(); ++c) {
|
|
joysticks.emplace_back(SDL_JoystickOpen(c));
|
|
}
|
|
}
|
|
|
|
/*
|
|
If the machine offers anything for activity observation,
|
|
create and register an activity observer.
|
|
*/
|
|
std::unique_ptr<ActivityObserver> activity_observer;
|
|
Activity::Source *const activity_source = machine->activity_source();
|
|
if(activity_source) {
|
|
activity_observer.reset(new ActivityObserver(activity_source, 4.0f / 3.0f));
|
|
}
|
|
|
|
// Run the main event loop until the OS tells us to quit.
|
|
const bool uses_mouse = !!machine->mouse_machine();
|
|
bool should_quit = false;
|
|
Uint32 fullscreen_mode = 0;
|
|
while(!should_quit) {
|
|
// Process all pending events.
|
|
SDL_Event event;
|
|
while(SDL_PollEvent(&event)) {
|
|
switch(event.type) {
|
|
case SDL_QUIT: should_quit = true; break;
|
|
|
|
case SDL_WINDOWEVENT:
|
|
switch (event.window.event) {
|
|
case SDL_WINDOWEVENT_RESIZED: {
|
|
GLint target_framebuffer = 0;
|
|
glGetIntegerv(GL_FRAMEBUFFER_BINDING, &target_framebuffer);
|
|
scan_target.set_target_framebuffer(target_framebuffer);
|
|
SDL_GetWindowSize(window, &window_width, &window_height);
|
|
if(activity_observer) activity_observer->set_aspect_ratio(static_cast<float>(window_width) / static_cast<float>(window_height));
|
|
} break;
|
|
|
|
default: break;
|
|
}
|
|
break;
|
|
|
|
case SDL_DROPFILE: {
|
|
Analyser::Static::Media media = Analyser::Static::GetMedia(event.drop.file);
|
|
machine->media_target()->insert_media(media);
|
|
} break;
|
|
|
|
case SDL_KEYDOWN:
|
|
// Syphon off the key-press if it's control+shift+V (paste).
|
|
if(event.key.keysym.sym == SDLK_v && (SDL_GetModState()&KMOD_CTRL) && (SDL_GetModState()&KMOD_SHIFT)) {
|
|
const auto keyboard_machine = machine->keyboard_machine();
|
|
if(keyboard_machine) {
|
|
keyboard_machine->type_string(SDL_GetClipboardText());
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Use ctrl+escape to release the mouse (if captured).
|
|
if(event.key.keysym.sym == SDLK_ESCAPE && (SDL_GetModState()&KMOD_CTRL)) {
|
|
SDL_SetRelativeMouseMode(SDL_FALSE);
|
|
window_titler.set_mouse_is_captured(false);
|
|
}
|
|
|
|
// Capture ctrl+shift+d as a take-a-screenshot command.
|
|
if(event.key.keysym.sym == SDLK_d && (SDL_GetModState()&KMOD_CTRL) && (SDL_GetModState()&KMOD_SHIFT)) {
|
|
// Grab the screen buffer.
|
|
Outputs::Display::OpenGL::Screenshot screenshot(4, 3);
|
|
|
|
// Pick the directory for images. Try `xdg-user-dir PICTURES` first.
|
|
std::string target_directory = system_get("xdg-user-dir PICTURES");
|
|
|
|
// Make sure there are no newlines.
|
|
target_directory.erase(std::remove(target_directory.begin(), target_directory.end(), '\n'), target_directory.end());
|
|
target_directory.erase(std::remove(target_directory.begin(), target_directory.end(), '\r'), target_directory.end());
|
|
|
|
// Fall back on the HOME directory if necessary.
|
|
if(target_directory.empty()) target_directory = getenv("HOME");
|
|
|
|
// Find the first available name of the form ~/clk-screenshot-<number>.bmp.
|
|
size_t index = 0;
|
|
std::string target;
|
|
while(true) {
|
|
target = target_directory + "/clk-screenshot-" + std::to_string(index) + ".bmp";
|
|
|
|
struct stat file_stats;
|
|
if(stat(target.c_str(), &file_stats))
|
|
break;
|
|
|
|
++index;
|
|
}
|
|
|
|
// Create a suitable SDL surface and save the thing.
|
|
const bool is_big_endian = SDL_BYTEORDER == SDL_BIG_ENDIAN;
|
|
SDL_Surface *const surface = SDL_CreateRGBSurfaceFrom(
|
|
screenshot.pixel_data.data(),
|
|
screenshot.width, screenshot.height,
|
|
8*4,
|
|
screenshot.width*4,
|
|
is_big_endian ? 0xff000000 : 0x000000ff,
|
|
is_big_endian ? 0x00ff0000 : 0x0000ff00,
|
|
is_big_endian ? 0x0000ff00 : 0x00ff0000,
|
|
0);
|
|
SDL_SaveBMP(surface, target.c_str());
|
|
SDL_FreeSurface(surface);
|
|
break;
|
|
}
|
|
|
|
// deliberate fallthrough...
|
|
case SDL_KEYUP: {
|
|
|
|
// Syphon off alt+enter (toggle full-screen) upon key up only; this was previously a key down action,
|
|
// but the SDL_KEYDOWN announcement was found to be reposted after changing graphics mode on some
|
|
// systems so key up is safer.
|
|
if(event.type == SDL_KEYUP && event.key.keysym.sym == SDLK_RETURN && (SDL_GetModState()&KMOD_ALT)) {
|
|
fullscreen_mode ^= SDL_WINDOW_FULLSCREEN_DESKTOP;
|
|
SDL_SetWindowFullscreen(window, fullscreen_mode);
|
|
SDL_ShowCursor((fullscreen_mode&SDL_WINDOW_FULLSCREEN_DESKTOP) ? SDL_DISABLE : SDL_ENABLE);
|
|
|
|
// Announce a potential discontinuity in keyboard input.
|
|
const auto keyboard_machine = machine->keyboard_machine();
|
|
if(keyboard_machine) {
|
|
keyboard_machine->get_keyboard().reset_all_keys();
|
|
}
|
|
break;
|
|
}
|
|
|
|
const bool is_pressed = event.type == SDL_KEYDOWN;
|
|
|
|
const auto keyboard_machine = machine->keyboard_machine();
|
|
if(keyboard_machine) {
|
|
Inputs::Keyboard::Key key = Inputs::Keyboard::Key::Space;
|
|
if(!KeyboardKeyForSDLScancode(event.key.keysym.scancode, key)) break;
|
|
|
|
if(keyboard_machine->get_keyboard().observed_keys().find(key) != keyboard_machine->get_keyboard().observed_keys().end()) {
|
|
char key_value = '\0';
|
|
const char *key_name = SDL_GetKeyName(event.key.keysym.sym);
|
|
if(key_name[0] >= 0) key_value = key_name[0];
|
|
|
|
keyboard_machine->get_keyboard().set_key_pressed(key, key_value, is_pressed);
|
|
break;
|
|
}
|
|
}
|
|
|
|
JoystickMachine::Machine *const joystick_machine = machine->joystick_machine();
|
|
if(joystick_machine) {
|
|
auto &joysticks = joystick_machine->get_joysticks();
|
|
if(!joysticks.empty()) {
|
|
switch(event.key.keysym.scancode) {
|
|
case SDL_SCANCODE_LEFT: joysticks[0]->set_input(Inputs::Joystick::Input::Left, is_pressed); break;
|
|
case SDL_SCANCODE_RIGHT: joysticks[0]->set_input(Inputs::Joystick::Input::Right, is_pressed); break;
|
|
case SDL_SCANCODE_UP: joysticks[0]->set_input(Inputs::Joystick::Input::Up, is_pressed); break;
|
|
case SDL_SCANCODE_DOWN: joysticks[0]->set_input(Inputs::Joystick::Input::Down, is_pressed); break;
|
|
case SDL_SCANCODE_SPACE: joysticks[0]->set_input(Inputs::Joystick::Input::Fire, is_pressed); break;
|
|
case SDL_SCANCODE_A: joysticks[0]->set_input(Inputs::Joystick::Input(Inputs::Joystick::Input::Fire, 0), is_pressed); break;
|
|
case SDL_SCANCODE_S: joysticks[0]->set_input(Inputs::Joystick::Input(Inputs::Joystick::Input::Fire, 1), is_pressed); break;
|
|
default: {
|
|
const char *key_name = SDL_GetKeyName(event.key.keysym.sym);
|
|
joysticks[0]->set_input(Inputs::Joystick::Input(key_name[0]), is_pressed);
|
|
} break;
|
|
}
|
|
}
|
|
}
|
|
} break;
|
|
|
|
case SDL_MOUSEBUTTONDOWN:
|
|
if(uses_mouse && !SDL_GetRelativeMouseMode()) {
|
|
SDL_SetRelativeMouseMode(SDL_TRUE);
|
|
window_titler.set_mouse_is_captured(true);
|
|
break;
|
|
}
|
|
case SDL_MOUSEBUTTONUP: {
|
|
const auto mouse_machine = machine->mouse_machine();
|
|
if(mouse_machine) {
|
|
mouse_machine->get_mouse().set_button_pressed(
|
|
event.button.button % mouse_machine->get_mouse().get_number_of_buttons(),
|
|
event.type == SDL_MOUSEBUTTONDOWN);
|
|
}
|
|
} break;
|
|
|
|
case SDL_MOUSEMOTION: {
|
|
if(SDL_GetRelativeMouseMode()) {
|
|
const auto mouse_machine = machine->mouse_machine();
|
|
if(mouse_machine) {
|
|
mouse_machine->get_mouse().move(event.motion.xrel, event.motion.yrel);
|
|
}
|
|
}
|
|
} break;
|
|
|
|
default: break;
|
|
}
|
|
}
|
|
|
|
// Push new joystick state, if any.
|
|
JoystickMachine::Machine *const joystick_machine = machine->joystick_machine();
|
|
if(joystick_machine) {
|
|
auto &machine_joysticks = joystick_machine->get_joysticks();
|
|
for(size_t c = 0; c < joysticks.size(); ++c) {
|
|
size_t target = c % machine_joysticks.size();
|
|
|
|
// Post the first two analogue axes presented by the controller as horizontal and vertical inputs,
|
|
// unless the user seems to be using a hat.
|
|
// SDL will return a value in the range [-32768, 32767], so map from that to [0, 1.0]
|
|
if(!joysticks[c].hat_values()) {
|
|
const float x_axis = static_cast<float>(SDL_JoystickGetAxis(joysticks[c].get(), 0) + 32768) / 65535.0f;
|
|
const float y_axis = static_cast<float>(SDL_JoystickGetAxis(joysticks[c].get(), 1) + 32768) / 65535.0f;
|
|
machine_joysticks[target]->set_input(Inputs::Joystick::Input(Inputs::Joystick::Input::Type::Horizontal), x_axis);
|
|
machine_joysticks[target]->set_input(Inputs::Joystick::Input(Inputs::Joystick::Input::Type::Vertical), y_axis);
|
|
}
|
|
|
|
// Forward hats as directions; hats always override analogue inputs.
|
|
const int number_of_hats = SDL_JoystickNumHats(joysticks[c].get());
|
|
for(int hat = 0; hat < number_of_hats; ++hat) {
|
|
const Uint8 hat_value = SDL_JoystickGetHat(joysticks[c].get(), hat);
|
|
const Uint8 changes = hat_value ^ joysticks[c].last_hat_value(hat);
|
|
joysticks[c].last_hat_value(hat) = hat_value;
|
|
|
|
if(changes & SDL_HAT_UP) {
|
|
machine_joysticks[target]->set_input(Inputs::Joystick::Input(Inputs::Joystick::Input::Type::Up), !!(hat_value & SDL_HAT_UP));
|
|
}
|
|
if(changes & SDL_HAT_DOWN) {
|
|
machine_joysticks[target]->set_input(Inputs::Joystick::Input(Inputs::Joystick::Input::Type::Down), !!(hat_value & SDL_HAT_DOWN));
|
|
}
|
|
if(changes & SDL_HAT_LEFT) {
|
|
machine_joysticks[target]->set_input(Inputs::Joystick::Input(Inputs::Joystick::Input::Type::Left), !!(hat_value & SDL_HAT_LEFT));
|
|
}
|
|
if(changes & SDL_HAT_RIGHT) {
|
|
machine_joysticks[target]->set_input(Inputs::Joystick::Input(Inputs::Joystick::Input::Type::Right), !!(hat_value & SDL_HAT_RIGHT));
|
|
}
|
|
}
|
|
|
|
// Forward all fire buttons, retaining their original indices.
|
|
const int number_of_buttons = SDL_JoystickNumButtons(joysticks[c].get());
|
|
for(int button = 0; button < number_of_buttons; ++button) {
|
|
machine_joysticks[target]->set_input(
|
|
Inputs::Joystick::Input(Inputs::Joystick::Input::Type::Fire, button),
|
|
SDL_JoystickGetButton(joysticks[c].get(), button) ? true : false);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Display a new frame and wait for vsync.
|
|
updater.update();
|
|
scan_target.update(int(window_width), int(window_height));
|
|
scan_target.draw(int(window_width), int(window_height));
|
|
if(activity_observer) activity_observer->draw();
|
|
SDL_GL_SwapWindow(window);
|
|
}
|
|
|
|
// Clean up.
|
|
joysticks.clear();
|
|
SDL_DestroyWindow( window );
|
|
SDL_Quit();
|
|
|
|
return EXIT_SUCCESS;
|
|
}
|