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sim_video.c
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/* sim_video.c: Bitmap video output
Copyright (c) 2011-2013, Matt Burke
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of the author shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from the author.
08-Nov-2013 MB Added globals for current mouse status
11-Jun-2013 MB First version
*/
#include "sim_video.h"
#include "scp.h"
int vid_active = 0;
int32 vid_cursor_x;
int32 vid_cursor_y;
t_bool vid_mouse_b1 = FALSE;
t_bool vid_mouse_b2 = FALSE;
t_bool vid_mouse_b3 = FALSE;
static VID_QUIT_CALLBACK vid_quit_callback = NULL;
static VID_GAMEPAD_CALLBACK motion_callback[10];
static VID_GAMEPAD_CALLBACK button_callback[10];
static int vid_gamepad_inited = 0;
t_stat vid_register_quit_callback (VID_QUIT_CALLBACK callback)
{
vid_quit_callback = callback;
return SCPE_OK;
}
static t_stat register_callback (void **array, int n, void *callback)
{
int i, j = -1;
if (!vid_gamepad_inited) {
return SCPE_NOATT;
}
for (i = 0; i < n; i++) {
if (array[i] == callback)
return SCPE_ALATT;
if (array[i] == NULL)
j = i;
}
if (j != -1) {
array[j] = callback;
return SCPE_OK;
}
return SCPE_NXM;
}
t_stat vid_register_gamepad_motion_callback (VID_GAMEPAD_CALLBACK callback)
{
int n = sizeof (motion_callback) / sizeof (callback);
return register_callback ((void **)motion_callback, n, (void *)callback);
}
t_stat vid_register_gamepad_button_callback (VID_GAMEPAD_CALLBACK callback)
{
int n = sizeof (button_callback) / sizeof (callback);
return register_callback ((void **)button_callback, n, (void *)callback);
}
t_stat vid_show (FILE* st, DEVICE *dptr, UNIT* uptr, int32 val, CONST char* desc)
{
return vid_show_video (st, uptr, val, desc);
}
#if defined(USE_SIM_VIDEO) && defined(HAVE_LIBSDL)
static const char *vid_dname (DEVICE *dev)
{
return dev ? sim_dname(dev) : "Video Device";
}
static int vid_gamepad_ok = 0; /* Or else just joysticks. */
char vid_release_key[64] = "Ctrl-Right-Shift";
#include <SDL.h>
#include <SDL_thread.h>
static const char *key_names[] =
{"F1", "F2", "F3", "F4", "F5", "F6", "F7", "F8", "F9", "F10", "F11", "F12",
"0", "1", "2", "3", "4", "5", "6", "7", "8", "9",
"A", "B", "C", "D", "E", "F", "G", "H", "I", "J",
"K", "L", "M", "N", "O", "P", "Q", "R", "S", "T",
"U", "V", "W", "X", "Y", "Z",
"BACKQUOTE", "MINUS", "EQUALS", "LEFT_BRACKET", "RIGHT_BRACKET",
"SEMICOLON", "SINGLE_QUOTE", "BACKSLASH", "LEFT_BACKSLASH", "COMMA",
"PERIOD", "SLASH", "PRINT", "SCRL_LOCK", "PAUSE", "ESC", "BACKSPACE",
"TAB", "ENTER", "SPACE", "INSERT", "DELETE", "HOME", "END", "PAGE_UP",
"PAGE_DOWN", "UP", "DOWN", "LEFT", "RIGHT", "CAPS_LOCK", "NUM_LOCK",
"ALT_L", "ALT_R", "CTRL_L", "CTRL_R", "SHIFT_L", "SHIFT_R",
"WIN_L", "WIN_R", "MENU", "KP_ADD", "KP_SUBTRACT", "KP_END", "KP_DOWN",
"KP_PAGE_DOWN", "KP_LEFT", "KP_RIGHT", "KP_HOME", "KP_UP", "KP_PAGE_UP",
"KP_INSERT", "KP_DELETE", "KP_5", "KP_ENTER", "KP_MULTIPLY", "KP_DIVIDE"
};
const char *vid_key_name (uint32 key)
{
static char tmp_key_name[40];
if (key < sizeof(key_names)/sizeof(key_names[0]))
sprintf (tmp_key_name, "SIM_KEY_%s", key_names[key]);
else
sprintf (tmp_key_name, "UNKNOWN KEY: %d", key);
return tmp_key_name;
}
#if defined(HAVE_LIBPNG)
/* From: https://github.com/driedfruit/SDL_SavePNG */
/*
* Save an SDL_Surface as a PNG file.
*
* Returns 0 success or -1 on failure, the error message is then retrievable
* via SDL_GetError().
*/
#define SDL_SavePNG(surface, file) \
SDL_SavePNG_RW(surface, SDL_RWFromFile(file, "wb"), 1)
/*
* SDL_SavePNG -- libpng-based SDL_Surface writer.
*
* This code is free software, available under zlib/libpng license.
* http://www.libpng.org/pub/png/src/libpng-LICENSE.txt
*/
#include <SDL.h>
#include <png.h>
#include <zlib.h>
#define SUCCESS 0
#define ERROR -1
#define USE_ROW_POINTERS
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
#define rmask 0xFF000000
#define gmask 0x00FF0000
#define bmask 0x0000FF00
#define amask 0x000000FF
#else
#define rmask 0x000000FF
#define gmask 0x0000FF00
#define bmask 0x00FF0000
#define amask 0xFF000000
#endif
/* libpng callbacks */
static void png_error_SDL(png_structp ctx, png_const_charp str)
{
SDL_SetError("libpng: %s\n", str);
}
static void png_write_SDL(png_structp png_ptr, png_bytep data, png_size_t length)
{
SDL_RWops *rw = (SDL_RWops*)png_get_io_ptr(png_ptr);
SDL_RWwrite(rw, data, sizeof(png_byte), length);
}
static SDL_Surface *SDL_PNGFormatAlpha(SDL_Surface *src)
{
SDL_Surface *surf;
SDL_Rect rect = { 0 };
/* NO-OP for images < 32bpp and 32bpp images that already have Alpha channel */
if (src->format->BitsPerPixel <= 24 || src->format->Amask) {
src->refcount++;
return src;
}
/* Convert 32bpp alpha-less image to 24bpp alpha-less image */
rect.w = src->w;
rect.h = src->h;
surf = SDL_CreateRGBSurface(src->flags, src->w, src->h, 24,
src->format->Rmask, src->format->Gmask, src->format->Bmask, 0);
SDL_LowerBlit(src, &rect, surf, &rect);
return surf;
}
static int SDL_SavePNG_RW(SDL_Surface *surface, SDL_RWops *dst, int freedst)
{
png_structp png_ptr;
png_infop info_ptr;
png_colorp pal_ptr;
SDL_Palette *pal;
int i, colortype;
#ifdef USE_ROW_POINTERS
png_bytep *row_pointers;
#endif
/* Initialize and do basic error checking */
if (!dst)
{
SDL_SetError("Argument 2 to SDL_SavePNG_RW can't be NULL, expecting SDL_RWops*\n");
return (ERROR);
}
if (!surface)
{
SDL_SetError("Argument 1 to SDL_SavePNG_RW can't be NULL, expecting SDL_Surface*\n");
if (freedst) SDL_RWclose(dst);
return (ERROR);
}
png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, png_error_SDL, NULL); /* err_ptr, err_fn, warn_fn */
if (!png_ptr)
{
SDL_SetError("Unable to png_create_write_struct on %s\n", PNG_LIBPNG_VER_STRING);
if (freedst) SDL_RWclose(dst);
return (ERROR);
}
info_ptr = png_create_info_struct(png_ptr);
if (!info_ptr)
{
SDL_SetError("Unable to png_create_info_struct\n");
png_destroy_write_struct(&png_ptr, NULL);
if (freedst) SDL_RWclose(dst);
return (ERROR);
}
if (setjmp(png_jmpbuf(png_ptr))) /* All other errors, see also "png_error_SDL" */
{
png_destroy_write_struct(&png_ptr, &info_ptr);
if (freedst) SDL_RWclose(dst);
return (ERROR);
}
/* Setup our RWops writer */
png_set_write_fn(png_ptr, dst, png_write_SDL, NULL); /* w_ptr, write_fn, flush_fn */
/* Prepare chunks */
colortype = PNG_COLOR_MASK_COLOR;
if (surface->format->BytesPerPixel > 0
&& surface->format->BytesPerPixel <= 8
&& (pal = surface->format->palette))
{
colortype |= PNG_COLOR_MASK_PALETTE;
pal_ptr = (png_colorp)malloc(pal->ncolors * sizeof(png_color));
for (i = 0; i < pal->ncolors; i++) {
pal_ptr[i].red = pal->colors[i].r;
pal_ptr[i].green = pal->colors[i].g;
pal_ptr[i].blue = pal->colors[i].b;
}
png_set_PLTE(png_ptr, info_ptr, pal_ptr, pal->ncolors);
free(pal_ptr);
}
else if (surface->format->BytesPerPixel > 3 || surface->format->Amask)
colortype |= PNG_COLOR_MASK_ALPHA;
png_set_IHDR(png_ptr, info_ptr, surface->w, surface->h, 8, colortype,
PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
// png_set_packing(png_ptr);
/* Allow BGR surfaces */
if (surface->format->Rmask == bmask
&& surface->format->Gmask == gmask
&& surface->format->Bmask == rmask)
png_set_bgr(png_ptr);
/* Write everything */
png_write_info(png_ptr, info_ptr);
#ifdef USE_ROW_POINTERS
row_pointers = (png_bytep*) malloc(sizeof(png_bytep)*surface->h);
for (i = 0; i < surface->h; i++)
row_pointers[i] = (png_bytep)(Uint8*)surface->pixels + i * surface->pitch;
png_write_image(png_ptr, row_pointers);
free(row_pointers);
#else
for (i = 0; i < surface->h; i++)
png_write_row(png_ptr, (png_bytep)(Uint8*)surface->pixels + i * surface->pitch);
#endif
png_write_end(png_ptr, info_ptr);
/* Done */
png_destroy_write_struct(&png_ptr, &info_ptr);
if (freedst) SDL_RWclose(dst);
return (SUCCESS);
}
#endif /* defined(HAVE_LIBPNG) */
/*
Some platforms (OS X), require that ALL input event processing be
performed by the main thread of the process.
To satisfy this requirement, we leverage the SDL_MAIN functionality
which does:
#defines main SDL_main
and we define the main() entry point here. Locally, we run the
application's SDL_main in a separate thread, and while that thread
is running, the main thread performs event handling and dispatch.
*/
#define EVENT_REDRAW 1 /* redraw event for SDL */
#define EVENT_CLOSE 2 /* close event for SDL */
#define EVENT_CURSOR 3 /* new cursor for SDL */
#define EVENT_WARP 4 /* warp mouse position for SDL */
#define EVENT_DRAW 5 /* draw/blit region for SDL */
#define EVENT_SHOW 6 /* show SDL capabilities */
#define EVENT_OPEN 7 /* vid_open request */
#define EVENT_EXIT 8 /* program exit */
#define EVENT_SCREENSHOT 9 /* produce screenshot of video window */
#define EVENT_BEEP 10 /* audio beep */
#define MAX_EVENTS 20 /* max events in queue */
typedef struct {
SIM_KEY_EVENT events[MAX_EVENTS];
SDL_sem *sem;
int32 head;
int32 tail;
int32 count;
} KEY_EVENT_QUEUE;
typedef struct {
SIM_MOUSE_EVENT events[MAX_EVENTS];
SDL_sem *sem;
int32 head;
int32 tail;
int32 count;
} MOUSE_EVENT_QUEUE;
int vid_thread (void* arg);
int vid_video_events (VID_DISPLAY *vptr);
void vid_show_video_event (void);
void vid_screenshot_event (void);
void vid_beep_event (void);
static void vid_beep_setup (int duration_ms, int tone_frequency);
static void vid_beep_cleanup (void);
static void vid_controllers_setup (DEVICE *dptr);
static void vid_controllers_cleanup (void);
struct VID_DISPLAY {
t_bool vid_active_window;
t_bool vid_mouse_captured;
int32 vid_flags; /* Open Flags */
int32 vid_width;
int32 vid_height;
t_bool vid_ready;
char vid_title[128];
SDL_Texture *vid_texture; /* video buffer in GPU */
SDL_Renderer *vid_renderer;
SDL_Window *vid_window; /* window handle */
SDL_PixelFormat *vid_format;
uint32 vid_windowID;
SDL_mutex *vid_draw_mutex; /* window update mutex */
SDL_Cursor *vid_cursor; /* current cursor */
t_bool vid_cursor_visible; /* cursor visibility state */
DEVICE *vid_dev;
t_bool vid_key_state[SDL_NUM_SCANCODES];
VID_DISPLAY *next;
t_bool vid_blending;
SDL_Rect *vid_dst_last;
uint32 *vid_data_last;
};
SDL_Thread *vid_thread_handle = NULL; /* event thread handle */
static VID_DISPLAY vid_first;
KEY_EVENT_QUEUE vid_key_events; /* keyboard events */
MOUSE_EVENT_QUEUE vid_mouse_events; /* mouse events */
static VID_DISPLAY *vid_get_event_window (SDL_Event *ev, Uint32 windowID)
{
static Uint32 lastID = 0xffffffff;
static VID_DISPLAY *last_display = NULL;
VID_DISPLAY *vptr;
SDL_KeyboardEvent *kev;
SDL_MouseButtonEvent *bev;
SDL_MouseMotionEvent *mev;
SDL_WindowEvent *wev;
SDL_UserEvent *uev;
if (windowID == lastID)
return last_display;
for (vptr = &vid_first; vptr != NULL; vptr = vptr->next) {
if (windowID == vptr->vid_windowID) {
lastID = windowID;
return last_display = vptr;
}
}
switch (ev->type) {
case SDL_KEYDOWN:
case SDL_KEYUP:
kev = (SDL_KeyboardEvent *)ev;
sim_messagef (SCPE_OK, "Unrecognized key event.\n");
sim_messagef (SCPE_OK, " type = %u\n", kev->type);
sim_messagef (SCPE_OK, " timestamp = %u\n", kev->timestamp);
sim_messagef (SCPE_OK, " windowID = %u\n", kev->windowID);
sim_messagef (SCPE_OK, " state = %u\n", kev->state);
sim_messagef (SCPE_OK, " repeat = %u\n", kev->repeat);
sim_messagef (SCPE_OK, " scancode = %d\n", kev->keysym.scancode);
sim_messagef (SCPE_OK, " sym = %d\n", kev->keysym.sym);
sim_messagef (SCPE_OK, " mod = %u\n", kev->keysym.mod);
break;
case SDL_MOUSEBUTTONDOWN:
case SDL_MOUSEBUTTONUP:
bev = (SDL_MouseButtonEvent *)ev;
sim_messagef (SCPE_OK, "Unrecognized mouse button event.\n");
sim_messagef (SCPE_OK, " type = %u\n", bev->type);
sim_messagef (SCPE_OK, " timestamp = %u\n", bev->timestamp);
sim_messagef (SCPE_OK, " windowID = %u\n", bev->windowID);
sim_messagef (SCPE_OK, " which = %u\n", bev->which);
sim_messagef (SCPE_OK, " button = %u\n", bev->button);
sim_messagef (SCPE_OK, " state = %u\n", bev->state);
sim_messagef (SCPE_OK, " clicks = %u\n", bev->clicks);
sim_messagef (SCPE_OK, " x = %d\n", bev->x);
sim_messagef (SCPE_OK, " y = %d\n", bev->y);
break;
case SDL_MOUSEMOTION:
mev = (SDL_MouseMotionEvent *)ev;
sim_messagef (SCPE_OK, "Unrecognized mouse motion event.\n");
sim_messagef (SCPE_OK, " type = %u\n", mev->type);
sim_messagef (SCPE_OK, " timestamp = %u\n", mev->timestamp);
sim_messagef (SCPE_OK, " windowID = %u\n", mev->windowID);
sim_messagef (SCPE_OK, " which = %u\n", mev->which);
sim_messagef (SCPE_OK, " state = %u\n", mev->state);
sim_messagef (SCPE_OK, " x = %d\n", mev->x);
sim_messagef (SCPE_OK, " y = %d\n", mev->y);
sim_messagef (SCPE_OK, " xrel = %d\n", mev->xrel);
sim_messagef (SCPE_OK, " yrel = %d\n", mev->yrel);
break;
case SDL_WINDOWEVENT:
wev = (SDL_WindowEvent *)ev;
sim_messagef (SCPE_OK, "Unrecognized window event.\n");
sim_messagef (SCPE_OK, " type = %u\n", wev->type);
sim_messagef (SCPE_OK, " timestamp = %u\n", wev->timestamp);
sim_messagef (SCPE_OK, " windowID = %u\n", wev->windowID);
sim_messagef (SCPE_OK, " event = %u\n", wev->event);
sim_messagef (SCPE_OK, " data1 = %d\n", wev->data1);
sim_messagef (SCPE_OK, " data2 = %d\n", wev->data2);
break;
case SDL_USEREVENT:
uev = (SDL_UserEvent *)ev;
sim_messagef (SCPE_OK, "Unrecognized user event.\n");
sim_messagef (SCPE_OK, " type = %u\n", uev->type);
sim_messagef (SCPE_OK, " timestamp = %u\n", uev->timestamp);
sim_messagef (SCPE_OK, " windowID = %u\n", uev->windowID);
sim_messagef (SCPE_OK, " code = %d\n", uev->code);
sim_messagef (SCPE_OK, " data1 = %p\n", uev->data1);
sim_messagef (SCPE_OK, " data2 = %p\n", uev->data2);
break;
default:
sim_messagef (SCPE_OK, "Unrecognized event type %u\n", ev->type);
break;
}
sim_messagef (SCPE_OK,
"\nSIMH has encountered a bug in SDL2. An upgrade to SDL2\n"
"version 2.0.14 should fix this problem.\n");
return NULL;
}
#if defined (SDL_MAIN_AVAILABLE)
#if defined (main)
#undef main
#endif
static int main_argc;
static char **main_argv;
static SDL_Thread *vid_main_thread_handle;
int main_thread (void *arg)
{
SDL_Event user_event;
int stat;
stat = SDL_main (main_argc, main_argv);
user_event.type = SDL_USEREVENT;
user_event.user.code = EVENT_EXIT;
user_event.user.data1 = NULL;
user_event.user.data2 = NULL;
while (SDL_PushEvent (&user_event) < 0)
sim_os_ms_sleep (10);
return stat;
}
int main (int argc, char *argv[])
{
SDL_Event event;
int status;
main_argc = argc;
main_argv = argv;
SDL_SetHint (SDL_HINT_RENDER_DRIVER, "software");
#if defined (SDL_HINT_VIDEO_ALLOW_SCREENSAVER)
/* If this hint is defined, the default is to disable the screen saver.
We want to leave the screen saver enabled. */
SDL_SetHint (SDL_HINT_VIDEO_ALLOW_SCREENSAVER, "1");
#endif
status = SDL_Init (SDL_INIT_VIDEO);
if (status) {
fprintf (stderr, "SDL Video subsystem can't initialize: %s\n", SDL_GetError ());
exit (1);
}
vid_main_thread_handle = SDL_CreateThread (main_thread , "simh-main", NULL);
if (vid_main_thread_handle == NULL) {
fprintf (stderr, "SDL_CreateThread failed: %s\n", SDL_GetError ());
exit (1);
}
vid_beep_setup (400, 660);
memset (&event, 0, sizeof (event));
while (1) {
int status = SDL_WaitEvent (&event);
if (status == 1) {
if (event.type == SDL_USEREVENT) {
if (event.user.code == EVENT_EXIT)
break;
if (event.user.code == EVENT_OPEN)
vid_video_events ((VID_DISPLAY *)event.user.data1);
else {
if (event.user.code == EVENT_SHOW)
vid_show_video_event ();
else {
if (event.user.code == EVENT_SCREENSHOT)
vid_screenshot_event ();
else {
sim_printf ("main(): Unexpected User event: %d\n", event.user.code);
break;
}
}
}
}
else {
// sim_printf ("main(): Ignoring unexpected event: %d\n", event.type);
}
}
else {
if (status < 0)
sim_printf ("main() - ` error: %s\n", SDL_GetError());
}
}
SDL_WaitThread (vid_main_thread_handle, &status);
vid_beep_cleanup ();
SDL_Quit ();
return status;
}
static t_stat vid_create_window (VID_DISPLAY *vptr)
{
int wait_count = 0;
SDL_Event user_event;
vptr->vid_ready = FALSE;
user_event.type = SDL_USEREVENT;
user_event.user.code = EVENT_OPEN;
user_event.user.data1 = vptr;
user_event.user.data2 = NULL;
SDL_PushEvent (&user_event);
while ((!vptr->vid_ready) && (++wait_count < 20))
sim_os_ms_sleep (100);
if (!vptr->vid_ready) {
vid_close ();
return SCPE_OPENERR;
}
return SCPE_OK;
}
#else
static int vid_create_window (VID_DISPLAY *vptr)
{
int wait_count = 0;
if (vid_thread_handle == NULL)
vid_thread_handle = SDL_CreateThread (vid_thread, "vid-thread", vptr);
else {
SDL_Event user_event;
vptr->vid_ready = FALSE;
user_event.type = SDL_USEREVENT;
user_event.user.code = EVENT_OPEN;
user_event.user.data1 = vptr;
user_event.user.data2 = NULL;
SDL_PushEvent (&user_event);
}
if (vid_thread_handle == NULL) {
vid_close ();
return SCPE_OPENERR;
}
while ((!vptr->vid_ready) && (++wait_count < 20))
sim_os_ms_sleep (100);
if (!vptr->vid_ready) {
vid_close ();
return SCPE_OPENERR;
}
return SCPE_OK;
}
#endif
static void vid_controllers_setup (DEVICE *dev)
{
SDL_Joystick *y;
SDL_version ver;
int i, n;
if (vid_gamepad_inited++)
return;
/* Chech that the SDL_GameControllerFromInstanceID function is
available at run time. */
SDL_GetVersion(&ver);
vid_gamepad_ok = (ver.major > 2 ||
(ver.major == 2 && (ver.minor > 0 || ver.patch >= 4)));
if (vid_gamepad_ok)
SDL_InitSubSystem(SDL_INIT_GAMECONTROLLER);
else
SDL_InitSubSystem(SDL_INIT_JOYSTICK);
if (SDL_JoystickEventState (SDL_ENABLE) < 0) {
if (vid_gamepad_ok)
SDL_QuitSubSystem(SDL_INIT_GAMECONTROLLER);
else
SDL_QuitSubSystem(SDL_INIT_JOYSTICK);
sim_printf ("%s: vid_controllers_setup(): SDL_JoystickEventState error: %s\n", vid_dname(dev), SDL_GetError());
return;
}
if (vid_gamepad_ok && SDL_GameControllerEventState (SDL_ENABLE) < 0) {
if (vid_gamepad_ok)
SDL_QuitSubSystem(SDL_INIT_GAMECONTROLLER);
else
SDL_QuitSubSystem(SDL_INIT_JOYSTICK);
sim_printf ("%s: vid_controllers_setup(): SDL_GameControllerEventState error: %s\n", vid_dname(dev), SDL_GetError());
return;
}
n = SDL_NumJoysticks();
for (i = 0; i < n; i++) {
if (vid_gamepad_ok && SDL_IsGameController (i)) {
SDL_GameController *x = SDL_GameControllerOpen (i);
if (x != NULL) {
sim_debug (SIM_VID_DBG_VIDEO, dev,
"Game controller: %s\n", SDL_GameControllerNameForIndex(i));
}
}
else {
y = SDL_JoystickOpen (i);
if (y != NULL) {
sim_debug (SIM_VID_DBG_VIDEO, dev,
"Joystick: %s\n", SDL_JoystickNameForIndex(i));
sim_debug (SIM_VID_DBG_VIDEO, dev,
"Number of axes: %d, buttons: %d\n",
SDL_JoystickNumAxes(y),
SDL_JoystickNumButtons(y));
}
}
}
}
static void vid_controllers_cleanup (void)
{
if (0 == (--vid_gamepad_inited)) {
memset (motion_callback, 0, sizeof motion_callback);
memset (button_callback, 0, sizeof button_callback);
if (vid_gamepad_ok)
SDL_QuitSubSystem(SDL_INIT_GAMECONTROLLER);
else
SDL_QuitSubSystem(SDL_INIT_JOYSTICK);
}
}
static t_stat vid_init_window (VID_DISPLAY *vptr, DEVICE *dptr, const char *title, uint32 width, uint32 height, int flags)
{
t_stat stat;
if ((strlen(sim_name) + 7 + (dptr ? strlen (dptr->name) : 0) + (title ? strlen (title) : 0)) < sizeof (vptr->vid_title))
sprintf (vptr->vid_title, "%s%s%s%s%s", sim_name, dptr ? " - " : "", dptr ? dptr->name : "", title ? " - " : "", title ? title : "");
else
sprintf (vptr->vid_title, "%s", sim_name);
vptr->vid_flags = flags;
vptr->vid_active_window = TRUE;
vptr->vid_width = width;
vptr->vid_height = height;
vptr->vid_mouse_captured = FALSE;
vptr->vid_cursor_visible = (vptr->vid_flags & SIM_VID_INPUTCAPTURED);
vptr->vid_blending = FALSE;
vptr->vid_ready = FALSE;
if (!vid_active) {
vid_key_events.head = 0;
vid_key_events.tail = 0;
vid_key_events.count = 0;
vid_key_events.sem = SDL_CreateSemaphore (1);
vid_mouse_events.head = 0;
vid_mouse_events.tail = 0;
vid_mouse_events.count = 0;
vid_mouse_events.sem = SDL_CreateSemaphore (1);
}
vptr->vid_dev = dptr;
memset (motion_callback, 0, sizeof motion_callback);
memset (button_callback, 0, sizeof button_callback);
stat = vid_create_window (vptr);
if (stat != SCPE_OK)
return stat;
sim_debug (SIM_VID_DBG_VIDEO|SIM_VID_DBG_KEY|SIM_VID_DBG_MOUSE, vptr->vid_dev, "vid_open() - Success\n");
return SCPE_OK;
}
t_stat vid_open_window (VID_DISPLAY **vptr, DEVICE *dptr, const char *title, uint32 width, uint32 height, int flags)
{
t_stat r;
*vptr = (VID_DISPLAY *)malloc (sizeof (VID_DISPLAY));
if (*vptr == NULL)
return SCPE_NXM;
(*vptr)->next = vid_first.next;
vid_first.next = *vptr;
r = vid_init_window (*vptr, dptr, title, width, height, flags);
if (r != SCPE_OK) {
vid_first.next = (*vptr)->next;
free (*vptr);
*vptr = NULL;
return r;
}
return SCPE_OK;
}
t_stat vid_open (DEVICE *dptr, const char *title, uint32 width, uint32 height, int flags)
{
if (!vid_first.vid_active_window)
return vid_init_window (&vid_first, dptr, title, width, height, flags);
return SCPE_OK;
}
t_stat vid_close_window (VID_DISPLAY *vptr)
{
SDL_Event user_event;
int status;
if (vptr->vid_ready) {
sim_debug (SIM_VID_DBG_VIDEO|SIM_VID_DBG_KEY|SIM_VID_DBG_MOUSE, vptr->vid_dev, "vid_close()\n");
user_event.type = SDL_USEREVENT;
user_event.user.windowID = vptr->vid_windowID;
user_event.user.code = EVENT_CLOSE;
user_event.user.data1 = NULL;
user_event.user.data2 = NULL;
while (SDL_PushEvent (&user_event) < 0)
sim_os_ms_sleep (10);
vptr->vid_dev = NULL;
}
if (vid_thread_handle && vid_active <= 1) {
SDL_WaitThread (vid_thread_handle, &status);
vid_thread_handle = NULL;
}
while (vptr->vid_ready)
sim_os_ms_sleep (10);
vptr->vid_active_window = FALSE;
if (!vid_active && vid_mouse_events.sem) {
SDL_DestroySemaphore(vid_mouse_events.sem);
vid_mouse_events.sem = NULL;
}
if (!vid_active && vid_key_events.sem) {
SDL_DestroySemaphore(vid_key_events.sem);
vid_key_events.sem = NULL;
}
return SCPE_OK;
}
t_stat vid_close (void)
{
if (vid_first.vid_active_window)
return vid_close_window (&vid_first);
return SCPE_OK;
}
t_stat vid_close_all (void)
{
VID_DISPLAY *vptr;
vid_close ();
for (vptr = vid_first.next; vptr != NULL; vptr = vptr->next)
vid_close_window (vptr);
return SCPE_OK;
}
t_stat vid_poll_kb (SIM_KEY_EVENT *ev)
{
if (SDL_SemTryWait (vid_key_events.sem) == 0) { /* get lock */
if (vid_key_events.count > 0) { /* events in queue? */
*ev = vid_key_events.events[vid_key_events.head++];
vid_key_events.count--;
if (vid_key_events.head == MAX_EVENTS)
vid_key_events.head = 0;
SDL_SemPost (vid_key_events.sem);
return SCPE_OK;
}
SDL_SemPost (vid_key_events.sem);
}
return SCPE_EOF;
}
t_stat vid_poll_mouse (SIM_MOUSE_EVENT *ev)
{
t_stat stat = SCPE_EOF;
SIM_MOUSE_EVENT *nev;
if (SDL_SemTryWait (vid_mouse_events.sem) == 0) {
if (vid_mouse_events.count > 0) {
stat = SCPE_OK;
*ev = vid_mouse_events.events[vid_mouse_events.head++];
vid_mouse_events.count--;
if (vid_mouse_events.head == MAX_EVENTS)
vid_mouse_events.head = 0;
nev = &vid_mouse_events.events[vid_mouse_events.head];
if ((vid_mouse_events.count > 0) &&
(0 == (ev->x_rel + nev->x_rel)) &&
(0 == (ev->y_rel + nev->y_rel)) &&
(ev->b1_state == nev->b1_state) &&
(ev->b2_state == nev->b2_state) &&
(ev->b3_state == nev->b3_state)) {
if ((++vid_mouse_events.head) == MAX_EVENTS)
vid_mouse_events.head = 0;
vid_mouse_events.count--;
stat = SCPE_EOF;
sim_debug (SIM_VID_DBG_MOUSE, ev->dev, "vid_poll_mouse: ignoring bouncing events\n");
}
}
if (SDL_SemPost (vid_mouse_events.sem))
sim_printf ("vid_poll_mouse(): SDL_SemPost error: %s\n", SDL_GetError());
}
return stat;
}
uint32 vid_map_rgb_window (VID_DISPLAY *vptr, uint8 r, uint8 g, uint8 b)
{
return SDL_MapRGB (vptr->vid_format, r, g, b);
}
uint32 vid_map_rgb (uint8 r, uint8 g, uint8 b)
{
return vid_map_rgb_window (&vid_first, r, g, b);
}
uint32 vid_map_rgba_window (VID_DISPLAY *vptr, uint8 r, uint8 g, uint8 b, uint8 a)
{
return SDL_MapRGBA (vptr->vid_format, r, g, b, a);
}
void vid_draw_window (VID_DISPLAY *vptr, int32 x, int32 y, int32 w, int32 h, uint32 *buf)
{
SDL_Event user_event;
SDL_Rect *vid_dst, *last;
uint32 *vid_data;
sim_debug (SIM_VID_DBG_VIDEO, vptr->vid_dev, "vid_draw(%d, %d, %d, %d)\n", x, y, w, h);
SDL_LockMutex (vptr->vid_draw_mutex); /* Synchronize to check region dimensions */
last = vptr->vid_dst_last;
if (last && /* As yet unprocessed draw rectangle? */
(last->x == x) && (last->y == y) && /* AND identical position? */
(last->w == w) && (last->h == h)) { /* AND identical dimensions? */
memcpy (vptr->vid_data_last, buf, w*h*sizeof(*buf));/* Replace region contents */
SDL_UnlockMutex (vptr->vid_draw_mutex); /* Done */
return;
}
SDL_UnlockMutex (vptr->vid_draw_mutex);
vid_dst = (SDL_Rect *)malloc (sizeof(*vid_dst));
if (!vid_dst) {
sim_printf ("%s: vid_draw() memory allocation error\n", vid_dname(vptr->vid_dev));
return;
}
vid_dst->x = x;
vid_dst->y = y;
vid_dst->w = w;
vid_dst->h = h;
vid_data = (uint32 *)malloc (w*h*sizeof(*buf));
if (!vid_data) {
sim_printf ("%s: vid_draw() memory allocation error\n", vid_dname(vptr->vid_dev));
free (vid_dst);
return;
}
memcpy (vid_data, buf, w*h*sizeof(*buf));
user_event.type = SDL_USEREVENT;
user_event.user.windowID = vptr->vid_windowID;
user_event.user.code = EVENT_DRAW;
user_event.user.data1 = (void *)vid_dst;
user_event.user.data2 = (void *)vid_data;
SDL_LockMutex (vptr->vid_draw_mutex); /* protect vid_dst_last & vid_data_last */
vptr->vid_dst_last = vid_dst;
vptr->vid_data_last = vid_data;
SDL_UnlockMutex (vptr->vid_draw_mutex); /* done protection */
if (SDL_PushEvent (&user_event) < 0) {
sim_printf ("%s: vid_draw() SDL_PushEvent error: %s\n", vid_dname(vptr->vid_dev), SDL_GetError());
free (vid_dst);
free (vid_data);
}
}
void vid_draw (int32 x, int32 y, int32 w, int32 h, uint32 *buf)
{
vid_draw_window (&vid_first, x, y, w, h, buf);
}
t_stat vid_set_cursor_window (VID_DISPLAY *vptr, t_bool visible, uint32 width, uint32 height, uint8 *data, uint8 *mask, uint32 hot_x, uint32 hot_y)
{
SDL_Cursor *cursor = SDL_CreateCursor (data, mask, width, height, hot_x, hot_y);
SDL_Event user_event;
sim_debug (SIM_VID_DBG_CURSOR, vptr->vid_dev, "vid_set_cursor(%s, %d, %d) Setting New Cursor\n", visible ? "visible" : "invisible", width, height);
if (sim_deb) {
uint32 i, j;
for (i=0; i<height; i++) {
sim_debug (SIM_VID_DBG_CURSOR, vptr->vid_dev, "Cursor: ");
for (j=0; j<width; j++) {
int byte = (j + i*width) >> 3;
int bit = 7 - ((j + i*width) & 0x7);
static char mode[] = "TWIB";
sim_debug (SIM_VID_DBG_CURSOR, vptr->vid_dev, "%c", mode[(((data[byte]>>bit)&1)<<1)|((mask[byte]>>bit)&1)]);
}
sim_debug (SIM_VID_DBG_CURSOR, vptr->vid_dev, "\n");
}
}
user_event.type = SDL_USEREVENT;
user_event.user.windowID = vptr->vid_windowID;
user_event.user.code = EVENT_CURSOR;
user_event.user.data1 = cursor;
user_event.user.data2 = (void *)((size_t)visible);
if (SDL_PushEvent (&user_event) < 0) {
sim_printf ("%s: vid_set_cursor() SDL_PushEvent error: %s\n", vid_dname(vptr->vid_dev), SDL_GetError());
SDL_FreeCursor (cursor);
}
return SCPE_OK;
}
t_stat vid_set_cursor (t_bool visible, uint32 width, uint32 height, uint8 *data, uint8 *mask, uint32 hot_x, uint32 hot_y)
{
return vid_set_cursor_window (&vid_first, visible, width, height, data, mask, hot_x, hot_y);
}
void vid_set_cursor_position_window (VID_DISPLAY *vptr, int32 x, int32 y)
{
int32 x_delta = vid_cursor_x - x;
int32 y_delta = vid_cursor_y - y;
if (vptr->vid_flags & SIM_VID_INPUTCAPTURED)
return;
if ((x_delta) || (y_delta)) {
sim_debug (SIM_VID_DBG_CURSOR, vptr->vid_dev, "vid_set_cursor_position(%d, %d) - Cursor position changed\n", x, y);
/* Any queued mouse motion events need to have their relative
positions adjusted since they were queued based on different info. */
if (SDL_SemWait (vid_mouse_events.sem) == 0) {
int32 i;
SIM_MOUSE_EVENT *ev;
for (i=0; i<vid_mouse_events.count; i++) {
ev = &vid_mouse_events.events[(vid_mouse_events.head + i)%MAX_EVENTS];
sim_debug (SIM_VID_DBG_CURSOR, vptr->vid_dev, "Pending Mouse Motion Event Adjusted from: (%d, %d) to (%d, %d)\n", ev->x_rel, ev->y_rel, ev->x_rel + x_delta, ev->y_rel + y_delta);
ev->x_rel += x_delta;
ev->y_rel += y_delta;
}
if (SDL_SemPost (vid_mouse_events.sem))
sim_printf ("%s: vid_set_cursor_position(): SDL_SemPost error: %s\n", vid_dname(vptr->vid_dev), SDL_GetError());
}