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fixup! Add display server.

This commit is contained in:
Jonas 'Sortie' Termansen 2023-06-10 16:23:11 +02:00
parent 6c6880ea31
commit ce3b519991
3 changed files with 86 additions and 102 deletions
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2
games/Makefile
View File

@ -15,7 +15,7 @@ BINARIES:=\
asteroids \
aquatinspitz \
LIBS:=-ldispd -ldisplay
LIBS:=-ldisplay
all: $(BINARIES)

180
games/aquatinspitz.c
View File

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

6
games/asteroids.cpp
View File

@ -21,6 +21,7 @@
#include <sys/termmode.h>
#include <assert.h>
#include <err.h>
#include <errno.h>
#include <error.h>
#include <fcntl.h>
@ -1179,6 +1180,8 @@ void RunFrame(struct display_connection* connection)
{
free(buf);
buf = (uint32_t*) malloc(framesize);
if ( !buf )
err(1, "malloc");
}
GameLogic();
@ -1199,7 +1202,8 @@ void RunFrame(struct display_connection* connection)
last_frame_sec = now.tv_sec;
}
display_render_window(connection, WINDOW_ID, 0, 0, WINDOW_WIDTH, WINDOW_HEIGHT, buf);
display_render_window(connection, WINDOW_ID, 0, 0,
WINDOW_WIDTH, WINDOW_HEIGHT, buf);
display_show_window(connection, WINDOW_ID);
}