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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"
t_bool vid_active = FALSE;
int32 vid_mouse_xrel;
int32 vid_mouse_yrel;
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;
t_stat vid_register_quit_callback (VID_QUIT_CALLBACK callback)
{
vid_quit_callback = callback;
return SCPE_OK;
}
t_stat vid_show (FILE* st, DEVICE *dptr, UNIT* uptr, int32 val, char* desc)
{
return vid_show_video (st, uptr, val, desc);
}
#if defined(USE_SIM_VIDEO) && defined(HAVE_LIBSDL)
char vid_release_key[64] = "Ctrl-Right-Shift";
#include <SDL.h>
#include <SDL_thread.h>
#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>
#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 /* show SDL capabilities */
#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 (void);
void vid_show_video_event (void);
void vid_screenshot_event (void);
void vid_beep_event (void);
/*
libSDL and libSDL2 have significantly different APIs.
The consequence is that this code has significant #ifdef sections.
The current structure is to implement the API differences in each
routine that has a difference. This allows the decision and flow
logic to exist once and thus to allow logic changes to be implemented
in one place.
*/
t_bool vid_mouse_captured;
int32 vid_flags; /* Open Flags */
int32 vid_width;
int32 vid_height;
t_bool vid_ready;
char vid_title[128];
static void vid_beep_setup (int duration_ms, int tone_frequency);
static void vid_beep_cleanup (void);
#if SDL_MAJOR_VERSION == 1
/*
Some platforms that use X11 display technology have libSDL
environments which need to call XInitThreads when libSDL is used
in multi-threaded programs. This routine attempts to locate
the X11 shareable library and if it is found loads it and calls
the XInitThreads routine to meet this requirement.
*/
#ifdef HAVE_DLOPEN
#include <dlfcn.h>
#endif
static void _XInitThreads (void)
{
#ifdef HAVE_DLOPEN
static void *hLib = NULL; /* handle to Library */
#define __STR_QUOTE(tok) #tok
#define __STR(tok) __STR_QUOTE(tok)
static const char* lib_name = "libX11." __STR(HAVE_DLOPEN);
typedef int (*_func)();
_func _func_ptr = NULL;
if (!hLib)
hLib = dlopen(lib_name, RTLD_NOW);
if (hLib)
_func_ptr = (_func)((size_t)dlsym(hLib, "XInitThreads"));
if (_func_ptr)
_func_ptr();
#endif
}
t_bool vid_key_state[SDLK_LAST];
SDL_Surface *vid_image; /* video buffer */
SDL_Surface *vid_window; /* window handle */
#else
t_bool vid_key_state[SDL_NUM_SCANCODES];
SDL_Texture *vid_texture; /* video buffer in GPU */
SDL_Renderer *vid_renderer;
SDL_Window *vid_window; /* window handle */
uint32 vid_windowID;
#endif
SDL_Thread *vid_thread_handle = NULL; /* event thread handle */
SDL_Cursor *vid_cursor = NULL; /* current cursor */
t_bool vid_cursor_visible = FALSE; /* cursor visibility state */
uint32 vid_mono_palette[2]; /* Monochrome Color Map */
SDL_Color vid_colors[256];
KEY_EVENT_QUEUE vid_key_events; /* keyboard events */
MOUSE_EVENT_QUEUE vid_mouse_events; /* mouse events */
DEVICE *vid_dev;
#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;
#if SDL_MAJOR_VERSION == 1
_XInitThreads();
SDL_Init (SDL_INIT_VIDEO|SDL_INIT_NOPARACHUTE);
vid_main_thread_handle = SDL_CreateThread (main_thread , NULL);
#else
SDL_SetHint (SDL_HINT_RENDER_DRIVER, "software");
SDL_Init (SDL_INIT_VIDEO);
vid_main_thread_handle = SDL_CreateThread (main_thread , "simh-main", NULL);
#endif
vid_beep_setup (400, 660);
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 ();
else {
if (event.user.code == EVENT_SHOW)
vid_show_video_event ();
else {
if (event.user.code == EVENT_SCREENSHOT)
vid_screenshot_event ();
else {
if (event.user.code == EVENT_BEEP)
vid_beep_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 ()
{
int wait_count = 0;
SDL_Event user_event;
vid_ready = FALSE;
user_event.type = SDL_USEREVENT;
user_event.user.code = EVENT_OPEN;
user_event.user.data1 = NULL;
user_event.user.data2 = NULL;
SDL_PushEvent (&user_event);
while ((!vid_ready) && (++wait_count < 20))
sim_os_ms_sleep (100);
if (!vid_ready) {
vid_close ();
return SCPE_OPENERR;
}
return SCPE_OK;
}
#else
static int vid_create_window ()
{
int wait_count = 0;
#if SDL_MAJOR_VERSION == 1
vid_thread_handle = SDL_CreateThread (vid_thread, NULL);
#else
vid_thread_handle = SDL_CreateThread (vid_thread, "vid-thread", NULL);
#endif
if (vid_thread_handle == NULL) {
vid_close ();
return SCPE_OPENERR;
}
while ((!vid_ready) && (++wait_count < 20))
sim_os_ms_sleep (100);
if (!vid_ready) {
vid_close ();
return SCPE_OPENERR;
}
return SCPE_OK;
}
#endif
t_stat vid_open (DEVICE *dptr, const char *title, uint32 width, uint32 height, int flags)
{
if (!vid_active) {
int wait_count = 0;
t_stat stat;
if ((strlen(sim_name) + 7 + (dptr ? strlen (dptr->name) : 0) + (title ? strlen (title) : 0)) < sizeof (vid_title))
sprintf (vid_title, "%s%s%s%s%s", sim_name, dptr ? " - " : "", dptr ? dptr->name : "", title ? " - " : "", title ? title : "");
else
sprintf (vid_title, "%s", sim_name);
vid_flags = flags;
vid_active = TRUE;
vid_width = width;
vid_height = height;
vid_mouse_captured = FALSE;
vid_cursor_visible = (vid_flags & SIM_VID_INPUTCAPTURED);
vid_mouse_xrel = 0;
vid_mouse_yrel = 0;
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);
vid_dev = dptr;
stat = vid_create_window ();
if (stat != SCPE_OK)
return stat;
sim_debug (SIM_VID_DBG_VIDEO|SIM_VID_DBG_KEY|SIM_VID_DBG_MOUSE, vid_dev, "vid_open() - Success\n");
}
return SCPE_OK;
}
t_stat vid_close (void)
{
if (vid_active) {
SDL_Event user_event;
int status;
vid_active = FALSE;
if (vid_ready) {
sim_debug (SIM_VID_DBG_VIDEO|SIM_VID_DBG_KEY|SIM_VID_DBG_MOUSE, vid_dev, "vid_close()\n");
user_event.type = SDL_USEREVENT;
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);
if (vid_thread_handle) {
SDL_WaitThread (vid_thread_handle, &status);
vid_thread_handle = NULL;
}
vid_dev = NULL;
}
while (vid_ready)
sim_os_ms_sleep (10);
if (vid_mouse_events.sem) {
SDL_DestroySemaphore(vid_mouse_events.sem);
vid_mouse_events.sem = NULL;
}
if (vid_key_events.sem) {
SDL_DestroySemaphore(vid_key_events.sem);
vid_key_events.sem = NULL;
}
}
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, vid_dev, "vid_poll_mouse: ignoring bouncing events\n");
}
}
if (SDL_SemPost (vid_mouse_events.sem))
sim_printf ("%s: vid_poll_mouse(): SDL_SemPost error: %s\n", sim_dname(vid_dev), SDL_GetError());
}
return stat;
}
void vid_draw (int32 x, int32 y, int32 w, int32 h, uint32 *buf)
{
#if SDL_MAJOR_VERSION == 1
int32 i;
uint32* pixels;
sim_debug (SIM_VID_DBG_VIDEO, vid_dev, "vid_draw(%d, %d, %d, %d)\n", x, y, w, h);
pixels = (uint32 *)vid_image->pixels;
for (i = 0; i < h; i++)
memcpy (pixels + ((i + y) * vid_width) + x, buf + w*i, w*sizeof(*pixels));
#else
SDL_Event user_event;
SDL_Rect *vid_dst;
uint32 *vid_data;
sim_debug (SIM_VID_DBG_VIDEO, vid_dev, "vid_draw(%d, %d, %d, %d)\n", x, y, w, h);
vid_dst = (SDL_Rect *)malloc (sizeof(*vid_dst));
if (!vid_dst) {
sim_printf ("%s: vid_draw() memory allocation error\n", vid_dev ? sim_dname(vid_dev) : "Video Device");
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_dev ? sim_dname(vid_dev) : "Video Device");
free (vid_dst);
return;
}
memcpy (vid_data, buf, w*h*sizeof(*buf));
user_event.type = SDL_USEREVENT;
user_event.user.code = EVENT_DRAW;
user_event.user.data1 = (void *)vid_dst;
user_event.user.data2 = (void *)vid_data;
if (SDL_PushEvent (&user_event) < 0) {
sim_printf ("%s: vid_draw() SDL_PushEvent error: %s\n", vid_dev ? sim_dname(vid_dev) : "Video Device", SDL_GetError());
free (vid_dst);
free (vid_data);
}
#endif
}
t_stat vid_set_cursor (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, 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, 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, vid_dev, "%c", mode[(((data[byte]>>bit)&1)<<1)|(mask[byte]>>bit)&1]);
}
sim_debug (SIM_VID_DBG_CURSOR, vid_dev, "\n");
}
}
user_event.type = SDL_USEREVENT;
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_dev ? sim_dname(vid_dev) : "Video Device", SDL_GetError());
SDL_FreeCursor (cursor);
}
return SCPE_OK;
}
void vid_set_cursor_position (int32 x, int32 y)
{
int32 x_delta = vid_cursor_x - x;
int32 y_delta = vid_cursor_y - y;
if ((x_delta) || (y_delta)) {
sim_debug (SIM_VID_DBG_CURSOR, 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, 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);
vid_mouse_xrel -= ev->x_rel; /* remove previously accumulated relative position */
vid_mouse_yrel -= ev->y_rel;
ev->x_rel += x_delta;
ev->y_rel += y_delta;
vid_mouse_xrel += ev->x_rel; /* update cumulative x & y rel */
vid_mouse_yrel += ev->y_rel;
}
if (SDL_SemPost (vid_mouse_events.sem))
sim_printf ("%s: vid_set_cursor_position(): SDL_SemPost error: %s\n", vid_dev ? sim_dname(vid_dev) : "Video Device", SDL_GetError());
}
else {
sim_printf ("%s: vid_set_cursor_position(): SDL_SemWait error: %s\n", vid_dev ? sim_dname(vid_dev) : "Video Device", SDL_GetError());
}
vid_cursor_x = x;
vid_cursor_y = y;
if (vid_cursor_visible) {
SDL_Event user_event;
user_event.type = SDL_USEREVENT;
user_event.user.code = EVENT_WARP;
user_event.user.data1 = NULL;
user_event.user.data2 = NULL;
if (SDL_PushEvent (&user_event) < 0)
sim_printf ("%s: vid_set_cursor_position() SDL_PushEvent error: %s\n", sim_dname(vid_dev), SDL_GetError());
sim_debug (SIM_VID_DBG_CURSOR, vid_dev, "vid_set_cursor_position() - Warp Queued\n");
}
else {
sim_debug (SIM_VID_DBG_CURSOR, vid_dev, "vid_set_cursor_position() - Warp Skipped\n");
}
}
}
void vid_refresh (void)
{
SDL_Event user_event;
sim_debug (SIM_VID_DBG_VIDEO, vid_dev, "vid_refresh() - Queueing Refresh Event\n");
user_event.type = SDL_USEREVENT;
user_event.user.code = EVENT_REDRAW;
user_event.user.data1 = NULL;
user_event.user.data2 = NULL;
if (SDL_PushEvent (&user_event) < 0)
sim_printf ("%s: vid_refresh() SDL_PushEvent error: %s\n", sim_dname(vid_dev), SDL_GetError());
}
int vid_map_key (int key)
{
switch (key) {
case SDLK_BACKSPACE:
return SIM_KEY_BACKSPACE;
case SDLK_TAB:
return SIM_KEY_TAB;
case SDLK_RETURN:
return SIM_KEY_ENTER;
case SDLK_ESCAPE:
return SIM_KEY_ESC;
case SDLK_SPACE:
return SIM_KEY_SPACE;
case SDLK_QUOTE:
return SIM_KEY_SINGLE_QUOTE;
case SDLK_COMMA:
return SIM_KEY_COMMA;
case SDLK_MINUS:
return SIM_KEY_MINUS;
case SDLK_PERIOD:
return SIM_KEY_PERIOD;
case SDLK_SLASH:
return SIM_KEY_SLASH;
case SDLK_0:
return SIM_KEY_0;
case SDLK_1:
return SIM_KEY_1;
case SDLK_2:
return SIM_KEY_2;
case SDLK_3:
return SIM_KEY_3;
case SDLK_4:
return SIM_KEY_4;
case SDLK_5:
return SIM_KEY_5;
case SDLK_6:
return SIM_KEY_6;
case SDLK_7:
return SIM_KEY_7;
case SDLK_8:
return SIM_KEY_8;
case SDLK_9:
return SIM_KEY_9;
case SDLK_SEMICOLON:
return SIM_KEY_SEMICOLON;
case SDLK_EQUALS:
return SIM_KEY_EQUALS;
case SDLK_LEFTBRACKET:
return SIM_KEY_LEFT_BRACKET;
case SDLK_BACKSLASH:
return SIM_KEY_BACKSLASH;
case SDLK_RIGHTBRACKET:
return SIM_KEY_RIGHT_BRACKET;
case SDLK_BACKQUOTE:
return SIM_KEY_BACKQUOTE;
case SDLK_a:
return SIM_KEY_A;
case SDLK_b:
return SIM_KEY_B;
case SDLK_c:
return SIM_KEY_C;
case SDLK_d:
return SIM_KEY_D;
case SDLK_e:
return SIM_KEY_E;
case SDLK_f:
return SIM_KEY_F;
case SDLK_g:
return SIM_KEY_G;
case SDLK_h:
return SIM_KEY_H;
case SDLK_i:
return SIM_KEY_I;
case SDLK_j:
return SIM_KEY_J;
case SDLK_k:
return SIM_KEY_K;
case SDLK_l:
return SIM_KEY_L;
case SDLK_m:
return SIM_KEY_M;
case SDLK_n:
return SIM_KEY_N;
case SDLK_o:
return SIM_KEY_O;
case SDLK_p:
return SIM_KEY_P;
case SDLK_q:
return SIM_KEY_Q;
case SDLK_r:
return SIM_KEY_R;
case SDLK_s:
return SIM_KEY_S;
case SDLK_t:
return SIM_KEY_T;
case SDLK_u:
return SIM_KEY_U;
case SDLK_v:
return SIM_KEY_V;
case SDLK_w:
return SIM_KEY_W;
case SDLK_x:
return SIM_KEY_X;
case SDLK_y:
return SIM_KEY_Y;
case SDLK_z:
return SIM_KEY_Z;
case SDLK_DELETE:
return SIM_KEY_DELETE;
#if SDL_MAJOR_VERSION == 1
case SDLK_KP0:
return SIM_KEY_KP_INSERT;
case SDLK_KP1:
return SIM_KEY_KP_END;
case SDLK_KP2:
return SIM_KEY_KP_DOWN;
case SDLK_KP3:
return SIM_KEY_KP_PAGE_DOWN;
case SDLK_KP4:
return SIM_KEY_KP_LEFT;
case SDLK_KP5:
return SIM_KEY_KP_5;
case SDLK_KP6:
return SIM_KEY_KP_RIGHT;
case SDLK_KP7:
return SIM_KEY_KP_HOME;
case SDLK_KP8:
return SIM_KEY_KP_UP;
case SDLK_KP9:
return SIM_KEY_KP_PAGE_UP;
#else
case SDLK_KP_0:
return SIM_KEY_KP_INSERT;
case SDLK_KP_1:
return SIM_KEY_KP_END;
case SDLK_KP_2:
return SIM_KEY_KP_DOWN;
case SDLK_KP_3:
return SIM_KEY_KP_PAGE_DOWN;
case SDLK_KP_4:
return SIM_KEY_KP_LEFT;
case SDLK_KP_5:
return SIM_KEY_KP_5;
case SDLK_KP_6:
return SIM_KEY_KP_RIGHT;
case SDLK_KP_7:
return SIM_KEY_KP_HOME;
case SDLK_KP_8:
return SIM_KEY_KP_UP;
case SDLK_KP_9:
return SIM_KEY_KP_PAGE_UP;
#endif
case SDLK_KP_PERIOD:
return SIM_KEY_KP_DELETE;
case SDLK_KP_DIVIDE:
return SIM_KEY_KP_DIVIDE;
case SDLK_KP_MULTIPLY:
return SIM_KEY_KP_MULTIPLY;
case SDLK_KP_MINUS:
return SIM_KEY_KP_SUBTRACT;
case SDLK_KP_PLUS:
return SIM_KEY_KP_ADD;
case SDLK_KP_ENTER:
return SIM_KEY_KP_ENTER;
case SDLK_UP:
return SIM_KEY_UP;
case SDLK_DOWN:
return SIM_KEY_DOWN;
case SDLK_RIGHT:
return SIM_KEY_RIGHT;
case SDLK_LEFT:
return SIM_KEY_LEFT;