fixup! Add display server.
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6c6880ea31
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ce3b519991
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@ -15,7 +15,7 @@ BINARIES:=\
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asteroids \
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aquatinspitz \
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LIBS:=-ldispd -ldisplay
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LIBS:=-ldisplay
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all: $(BINARIES)
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@ -1,5 +1,5 @@
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/*
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* Copyright (c) 2014, 2015, 2016 Jonas 'Sortie' Termansen.
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* Copyright (c) 2014, 2015, 2016, 2023 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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@ -22,6 +22,7 @@
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#include <sys/types.h>
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#include <assert.h>
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#include <err.h>
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#include <errno.h>
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#include <error.h>
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#include <math.h>
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@ -34,12 +35,15 @@
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#include <timespec.h>
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#include <unistd.h>
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#include <dispd.h>
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#include <display.h>
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// Utility global variables every game will need.
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uint32_t window_id = 0;
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static size_t framesize;
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static uint32_t* fb;
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static bool game_running = true;
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static size_t game_width = 1280;
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static size_t game_height = 720;
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static size_t game_width = 800;
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static size_t game_height = 512;
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#define MAX_KEY_NUMBER 512
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static bool keys_down[MAX_KEY_NUMBER];
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static bool keys_pending[MAX_KEY_NUMBER];
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@ -200,20 +204,16 @@ void update(float deltatime)
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}
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// Render the game into the framebuffer.
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void render(struct dispd_window* window)
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void render(struct display_connection* connection)
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{
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struct dispd_framebuffer* window_fb = dispd_begin_render(window);
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if ( !window_fb )
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{
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error(0, 0, "unable to begin rendering dispd window");
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game_running = false;
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return;
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}
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size_t old_framesize = framesize;
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uint32_t* fb = (uint32_t*) dispd_get_framebuffer_data(window_fb);
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size_t xres = dispd_get_framebuffer_width(window_fb);
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size_t yres = dispd_get_framebuffer_height(window_fb);
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size_t pitch = dispd_get_framebuffer_pitch(window_fb) / sizeof(uint32_t);
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size_t xres = game_width;
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size_t yres = game_height;
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size_t pitch = xres;
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framesize = xres * yres * sizeof(uint32_t);
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if ( old_framesize != framesize && !(fb = realloc(fb, framesize)) )
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err(1, "malloc");
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// Render a colorful background.
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for ( size_t y = 0; y < yres; y++ )
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@ -273,7 +273,9 @@ void render(struct dispd_window* window)
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}
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}
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dispd_finish_render(window_fb);
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display_render_window(connection, window_id, 0, 0,
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game_width, game_height, fb);
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display_show_window(connection, window_id);
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}
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// ... to here. No need to edit stuff below.
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@ -310,50 +312,68 @@ bool pop_is_key_just_down(int abskbkey)
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return true;
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}
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// Read input from the keyboard.
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void input(void)
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// When the connection to the display server has disconnected.
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void on_disconnect(void* ctx)
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{
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// Read the keyboard input from the user.
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unsigned termmode = TERMMODE_KBKEY | TERMMODE_SIGNAL | TERMMODE_NONBLOCK;
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if ( settermmode(0, termmode) )
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error(1, errno, "settermmode");
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uint32_t codepoint;
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ssize_t numbytes;
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while ( 0 < (numbytes = read(0, &codepoint, sizeof(codepoint))) )
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(void) ctx;
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exit(0);
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}
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// When the window is asked to quit.
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void on_quit(void* ctx, uint32_t window_id)
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{
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(void) ctx;
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(void) window_id;
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exit(0);
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}
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// When the window has been resized.
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void on_resize(void* ctx, uint32_t window_id, uint32_t width, uint32_t height)
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{
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(void) ctx;
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if ( window_id != window_id )
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return;
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game_width = width;
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game_height = height;
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}
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// When a key has been pressed.
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void on_keyboard(void* ctx, uint32_t window_id, uint32_t codepoint)
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{
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(void) ctx;
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if ( window_id != window_id )
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return;
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int kbkey = KBKEY_DECODE(codepoint);
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if ( !kbkey )
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continue;
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return;
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int abskbkey = (kbkey < 0) ? -kbkey : kbkey;
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if ( MAX_KEY_NUMBER <= (size_t) abskbkey )
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continue;
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return;
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bool is_key_down_event = 0 < kbkey;
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if ( !keys_down[abskbkey] && is_key_down_event )
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keys_pending[abskbkey] = true;
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keys_down[abskbkey] = is_key_down_event;
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}
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}
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// Run the game until no longer needed.
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void mainloop(struct dispd_window* window)
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void mainloop(struct display_connection* connection)
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{
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struct dispd_framebuffer* window_fb = dispd_begin_render(window);
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if ( window_fb )
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{
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game_width = dispd_get_framebuffer_width(window_fb);
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game_height = dispd_get_framebuffer_height(window_fb);
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dispd_finish_render(window_fb);
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}
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struct display_event_handlers handlers = {0};
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handlers.disconnect_handler = on_disconnect;
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handlers.quit_handler = on_quit;
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handlers.resize_handler = on_resize;
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handlers.keyboard_handler = on_keyboard;
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init();
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struct timespec last_frame_time;
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clock_gettime(CLOCK_MONOTONIC, &last_frame_time);
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render(window);
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render(connection);
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while ( game_running )
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{
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struct timespec current_frame_time;
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clock_gettime(CLOCK_MONOTONIC, ¤t_frame_time);
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@ -361,71 +381,31 @@ void mainloop(struct dispd_window* window)
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timespec_sub(current_frame_time, last_frame_time);
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float deltatime = deltatime_ts.tv_sec + deltatime_ts.tv_nsec / 1E9f;
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input();
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while ( display_poll_event(connection, &handlers) == 0 );
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update(deltatime);
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render(window);
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render(connection);
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last_frame_time = current_frame_time;
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}
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}
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// Reset the terminal state when the process terminates.
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static struct termios saved_tio;
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static void restore_terminal_on_exit(void)
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{
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tcsetattr(0, TCSAFLUSH, &saved_tio);
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}
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static void restore_terminal_on_signal(int signum)
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{
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if ( signum == SIGTSTP )
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{
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struct termios tio;
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tcgetattr(0, &tio);
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tcsetattr(0, TCSAFLUSH, &saved_tio);
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raise(SIGSTOP);
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tcgetattr(0, &saved_tio);
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tcsetattr(0, TCSAFLUSH, &tio);
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return;
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}
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tcsetattr(0, TCSAFLUSH, &saved_tio);
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raise(signum);
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}
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// Create a display context, run the game, and then cleanly exit.
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int main(int argc, char* argv[])
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{
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if ( !isatty(0) )
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error(1, errno, "standard input");
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if ( tcgetattr(0, &saved_tio) < 0 )
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error(1, errno, "tcsetattr: standard input");
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if ( atexit(restore_terminal_on_exit) != 0 )
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error(1, errno, "atexit");
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struct sigaction sa;
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memset(&sa, 0, sizeof(sa));
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sa.sa_handler = restore_terminal_on_signal;
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sigaction(SIGTSTP, &sa, NULL);
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sa.sa_flags = SA_RESETHAND;
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sigaction(SIGINT, &sa, NULL);
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sigaction(SIGQUIT, &sa, NULL);
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sigaction(SIGTERM, &sa, NULL);
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struct display_connection* connection = display_connect_default();
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if ( !connection && errno == ECONNREFUSED )
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display_spawn(argc, argv);
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if ( !connection )
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error(1, errno, "Could not connect to display server");
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if ( !dispd_initialize(&argc, &argv) )
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error(1, 0, "couldn't initialize dispd library");
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struct dispd_session* session = dispd_attach_default_session();
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if ( !session )
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error(1, 0, "couldn't attach to dispd default session");
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if ( !dispd_session_setup_game_rgba(session) )
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error(1, 0, "couldn't setup dispd rgba session");
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struct dispd_window* window = dispd_create_window_game_rgba(session);
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if ( !window )
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error(1, 0, "couldn't create dispd rgba window");
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display_create_window(connection, window_id);
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display_resize_window(connection, window_id, game_width, game_height);
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display_title_window(connection, window_id, "Aquatinspitz");
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mainloop(window);
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mainloop(connection);
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dispd_destroy_window(window);
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dispd_detach_session(session);
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display_disconnect(connection);
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return 0;
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}
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@ -21,6 +21,7 @@
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#include <sys/termmode.h>
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#include <assert.h>
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#include <err.h>
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#include <errno.h>
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#include <error.h>
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#include <fcntl.h>
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@ -1179,6 +1180,8 @@ void RunFrame(struct display_connection* connection)
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{
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free(buf);
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buf = (uint32_t*) malloc(framesize);
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if ( !buf )
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err(1, "malloc");
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}
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GameLogic();
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@ -1199,7 +1202,8 @@ void RunFrame(struct display_connection* connection)
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last_frame_sec = now.tv_sec;
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}
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display_render_window(connection, WINDOW_ID, 0, 0, WINDOW_WIDTH, WINDOW_HEIGHT, buf);
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display_render_window(connection, WINDOW_ID, 0, 0,
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WINDOW_WIDTH, WINDOW_HEIGHT, buf);
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display_show_window(connection, WINDOW_ID);
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}
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