gzdoom-gles/src/sdl/i_system.cpp
2014-01-17 20:45:20 +01:00

958 lines
21 KiB
C++

// Emacs style mode select -*- C++ -*-
//-----------------------------------------------------------------------------
//
// $Id:$
//
// Copyright (C) 1993-1996 by id Software, Inc.
//
// This source is available for distribution and/or modification
// only under the terms of the DOOM Source Code License as
// published by id Software. All rights reserved.
//
// The source is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
// for more details.
//
// $Log:$
//
// DESCRIPTION:
//
//-----------------------------------------------------------------------------
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <fnmatch.h>
#include <unistd.h>
#include <stdarg.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <signal.h>
#ifndef NO_GTK
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#endif
#include "doomerrors.h"
#include <math.h>
#include "SDL.h"
#include "doomtype.h"
#include "doomstat.h"
#include "version.h"
#include "doomdef.h"
#include "cmdlib.h"
#include "m_argv.h"
#include "m_misc.h"
#include "i_video.h"
#include "i_sound.h"
#include "i_music.h"
#include "x86.h"
#include "d_main.h"
#include "d_net.h"
#include "g_game.h"
#include "i_system.h"
#include "c_dispatch.h"
#include "templates.h"
#include "v_palette.h"
#include "textures.h"
#include "bitmap.h"
#include "stats.h"
#include "hardware.h"
#include "gameconfigfile.h"
#include "m_fixed.h"
#include "g_level.h"
#ifdef USE_XCURSOR
// Xlib has its own GC, so don't let it interfere.
#define GC XGC
#include <X11/Xcursor/Xcursor.h>
#undef GC
#endif
EXTERN_CVAR (String, language)
extern "C"
{
double SecondsPerCycle = 1e-8;
double CyclesPerSecond = 1e8;
}
#ifndef NO_GTK
extern bool GtkAvailable;
#elif defined(__APPLE__)
int I_PickIWad_Cocoa (WadStuff *wads, int numwads, bool showwin, int defaultiwad);
#endif
#ifdef USE_XCURSOR
bool UseXCursor;
SDL_Cursor *X11Cursor;
SDL_Cursor *FirstCursor;
#endif
DWORD LanguageIDs[4] =
{
MAKE_ID ('e','n','u',0),
MAKE_ID ('e','n','u',0),
MAKE_ID ('e','n','u',0),
MAKE_ID ('e','n','u',0)
};
int (*I_GetTime) (bool saveMS);
int (*I_WaitForTic) (int);
void (*I_FreezeTime) (bool frozen);
void I_Tactile (int on, int off, int total)
{
// UNUSED.
on = off = total = 0;
}
ticcmd_t emptycmd;
ticcmd_t *I_BaseTiccmd(void)
{
return &emptycmd;
}
void I_BeginRead(void)
{
}
void I_EndRead(void)
{
}
static DWORD TicStart;
static DWORD TicNext;
static DWORD BaseTime;
static int TicFrozen;
// Signal based timer.
static Semaphore timerWait;
static int tics;
static DWORD sig_start, sig_next;
void I_SelectTimer();
// [RH] Returns time in milliseconds
unsigned int I_MSTime (void)
{
unsigned int time = SDL_GetTicks ();
return time - BaseTime;
}
// Exactly the same thing, but based does no modification to the time.
unsigned int I_FPSTime()
{
return SDL_GetTicks();
}
//
// I_GetTime
// returns time in 1/35th second tics
//
int I_GetTimeSelect (bool saveMS)
{
I_SelectTimer();
return I_GetTime (saveMS);
}
int I_GetTimePolled (bool saveMS)
{
if (TicFrozen != 0)
{
return TicFrozen;
}
DWORD tm = SDL_GetTicks();
if (saveMS)
{
TicStart = tm;
TicNext = Scale((Scale (tm, TICRATE, 1000) + 1), 1000, TICRATE);
}
return Scale(tm - BaseTime, TICRATE, 1000);
}
int I_GetTimeSignaled (bool saveMS)
{
if (saveMS)
{
TicStart = sig_start;
TicNext = sig_next;
}
return tics;
}
int I_WaitForTicPolled (int prevtic)
{
int time;
assert (TicFrozen == 0);
while ((time = I_GetTimePolled(false)) <= prevtic)
;
return time;
}
int I_WaitForTicSignaled (int prevtic)
{
assert (TicFrozen == 0);
while(tics <= prevtic)
{
SEMAPHORE_WAIT(timerWait)
}
return tics;
}
void I_FreezeTimeSelect (bool frozen)
{
I_SelectTimer();
return I_FreezeTime (frozen);
}
void I_FreezeTimePolled (bool frozen)
{
if (frozen)
{
assert(TicFrozen == 0);
TicFrozen = I_GetTimePolled(false);
}
else
{
assert(TicFrozen != 0);
int froze = TicFrozen;
TicFrozen = 0;
int now = I_GetTimePolled(false);
BaseTime += (now - froze) * 1000 / TICRATE;
}
}
void I_FreezeTimeSignaled (bool frozen)
{
TicFrozen = frozen;
}
int I_WaitForTicSelect (int prevtic)
{
I_SelectTimer();
return I_WaitForTic (prevtic);
}
//
// I_HandleAlarm
// Should be called every time there is an alarm.
//
void I_HandleAlarm (int sig)
{
if(!TicFrozen)
tics++;
sig_start = SDL_GetTicks();
sig_next = Scale((Scale (sig_start, TICRATE, 1000) + 1), 1000, TICRATE);
SEMAPHORE_SIGNAL(timerWait)
}
//
// I_SelectTimer
// Sets up the timer function based on if we can use signals for efficent CPU
// usage.
//
void I_SelectTimer()
{
SEMAPHORE_INIT(timerWait, 0, 0)
#ifndef __sun
signal(SIGALRM, I_HandleAlarm);
#else
struct sigaction alrmaction;
sigaction(SIGALRM, NULL, &alrmaction);
alrmaction.sa_handler = I_HandleAlarm;
sigaction(SIGALRM, &alrmaction, NULL);
#endif
struct itimerval itv;
itv.it_interval.tv_sec = itv.it_value.tv_sec = 0;
itv.it_interval.tv_usec = itv.it_value.tv_usec = 1000000/TICRATE;
if (setitimer(ITIMER_REAL, &itv, NULL) != 0)
{
I_GetTime = I_GetTimePolled;
I_FreezeTime = I_FreezeTimePolled;
I_WaitForTic = I_WaitForTicPolled;
}
else
{
I_GetTime = I_GetTimeSignaled;
I_FreezeTime = I_FreezeTimeSignaled;
I_WaitForTic = I_WaitForTicSignaled;
}
}
// Returns the fractional amount of a tic passed since the most recent tic
fixed_t I_GetTimeFrac (uint32 *ms)
{
DWORD now = SDL_GetTicks ();
if (ms) *ms = TicNext;
DWORD step = TicNext - TicStart;
if (step == 0)
{
return FRACUNIT;
}
else
{
fixed_t frac = clamp<fixed_t> ((now - TicStart)*FRACUNIT/step, 0, FRACUNIT);
return frac;
}
}
void I_WaitVBL (int count)
{
// I_WaitVBL is never used to actually synchronize to the
// vertical blank. Instead, it's used for delay purposes.
usleep (1000000 * count / 70);
}
//
// SetLanguageIDs
//
void SetLanguageIDs ()
{
}
//
// I_Init
//
void I_Init (void)
{
CheckCPUID (&CPU);
DumpCPUInfo (&CPU);
I_GetTime = I_GetTimeSelect;
I_WaitForTic = I_WaitForTicSelect;
I_FreezeTime = I_FreezeTimeSelect;
atterm (I_ShutdownSound);
I_InitSound ();
}
//
// I_Quit
//
static int has_exited;
void I_Quit (void)
{
has_exited = 1; /* Prevent infinitely recursive exits -- killough */
if (demorecording)
G_CheckDemoStatus();
}
//
// I_Error
//
extern FILE *Logfile;
bool gameisdead;
#ifdef __APPLE__
void Mac_I_FatalError(const char* errortext);
#endif
void STACK_ARGS I_FatalError (const char *error, ...)
{
static bool alreadyThrown = false;
gameisdead = true;
if (!alreadyThrown) // ignore all but the first message -- killough
{
alreadyThrown = true;
char errortext[MAX_ERRORTEXT];
int index;
va_list argptr;
va_start (argptr, error);
index = vsnprintf (errortext, MAX_ERRORTEXT, error, argptr);
va_end (argptr);
#ifdef __APPLE__
Mac_I_FatalError(errortext);
#endif // __APPLE__
// Record error to log (if logging)
if (Logfile)
{
fprintf (Logfile, "\n**** DIED WITH FATAL ERROR:\n%s\n", errortext);
fflush (Logfile);
}
// throw CFatalError (errortext);
fprintf (stderr, "%s\n", errortext);
exit (-1);
}
if (!has_exited) // If it hasn't exited yet, exit now -- killough
{
has_exited = 1; // Prevent infinitely recursive exits -- killough
exit(-1);
}
}
void STACK_ARGS I_Error (const char *error, ...)
{
va_list argptr;
char errortext[MAX_ERRORTEXT];
va_start (argptr, error);
vsprintf (errortext, error, argptr);
va_end (argptr);
throw CRecoverableError (errortext);
}
void I_SetIWADInfo ()
{
}
void I_PrintStr (const char *cp)
{
// Strip out any color escape sequences before writing to the log file
char * copy = new char[strlen(cp)+1];
const char * srcp = cp;
char * dstp = copy;
while (*srcp != 0)
{
if (*srcp!=0x1c && *srcp!=0x1d && *srcp!=0x1e && *srcp!=0x1f)
{
*dstp++=*srcp++;
}
else
{
if (srcp[1]!=0) srcp+=2;
else break;
}
}
*dstp=0;
fputs (copy, stdout);
delete [] copy;
fflush (stdout);
}
#ifndef NO_GTK
// GtkTreeViews eats return keys. I want this to be like a Windows listbox
// where pressing Return can still activate the default button.
gint AllowDefault(GtkWidget *widget, GdkEventKey *event, gpointer func_data)
{
if (event->type == GDK_KEY_PRESS && event->keyval == GDK_Return)
{
gtk_window_activate_default (GTK_WINDOW(func_data));
}
return FALSE;
}
// Double-clicking an entry in the list is the same as pressing OK.
gint DoubleClickChecker(GtkWidget *widget, GdkEventButton *event, gpointer func_data)
{
if (event->type == GDK_2BUTTON_PRESS)
{
*(int *)func_data = 1;
gtk_main_quit();
}
return FALSE;
}
// When the user presses escape, that should be the same as canceling the dialog.
gint CheckEscape (GtkWidget *widget, GdkEventKey *event, gpointer func_data)
{
if (event->type == GDK_KEY_PRESS && event->keyval == GDK_Escape)
{
gtk_main_quit();
}
return FALSE;
}
void ClickedOK(GtkButton *button, gpointer func_data)
{
*(int *)func_data = 1;
gtk_main_quit();
}
EXTERN_CVAR (Bool, queryiwad);
int I_PickIWad_Gtk (WadStuff *wads, int numwads, bool showwin, int defaultiwad)
{
GtkWidget *window;
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *bbox;
GtkWidget *widget;
GtkWidget *tree;
GtkWidget *check;
GtkListStore *store;
GtkCellRenderer *renderer;
GtkTreeViewColumn *column;
GtkTreeSelection *selection;
GtkTreeIter iter, defiter;
int close_style = 0;
int i;
char caption[100];
// Create the dialog window.
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
mysnprintf(caption, countof(caption), GAMESIG " %s: Select an IWAD to use", GetVersionString());
gtk_window_set_title (GTK_WINDOW(window), caption);
gtk_window_set_position (GTK_WINDOW(window), GTK_WIN_POS_CENTER);
gtk_container_set_border_width (GTK_CONTAINER(window), 10);
g_signal_connect (window, "delete_event", G_CALLBACK(gtk_main_quit), NULL);
g_signal_connect (window, "key_press_event", G_CALLBACK(CheckEscape), NULL);
// Create the vbox container.
vbox = gtk_vbox_new (FALSE, 10);
gtk_container_add (GTK_CONTAINER(window), vbox);
// Create the top label.
widget = gtk_label_new ("ZDoom found more than one IWAD\nSelect from the list below to determine which one to use:");
gtk_box_pack_start (GTK_BOX(vbox), widget, false, false, 0);
gtk_misc_set_alignment (GTK_MISC(widget), 0, 0);
// Create a list store with all the found IWADs.
store = gtk_list_store_new (3, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_INT);
for (i = 0; i < numwads; ++i)
{
const char *filepart = strrchr (wads[i].Path, '/');
if (filepart == NULL)
filepart = wads[i].Path;
else
filepart++;
gtk_list_store_append (store, &iter);
gtk_list_store_set (store, &iter,
0, filepart,
1, wads[i].Name.GetChars(),
2, i,
-1);
if (i == defaultiwad)
{
defiter = iter;
}
}
// Create the tree view control to show the list.
tree = gtk_tree_view_new_with_model (GTK_TREE_MODEL(store));
renderer = gtk_cell_renderer_text_new ();
column = gtk_tree_view_column_new_with_attributes ("IWAD", renderer, "text", 0, NULL);
gtk_tree_view_append_column (GTK_TREE_VIEW(tree), column);
renderer = gtk_cell_renderer_text_new ();
column = gtk_tree_view_column_new_with_attributes ("Game", renderer, "text", 1, NULL);
gtk_tree_view_append_column (GTK_TREE_VIEW(tree), column);
gtk_box_pack_start (GTK_BOX(vbox), GTK_WIDGET(tree), true, true, 0);
g_signal_connect(G_OBJECT(tree), "button_press_event", G_CALLBACK(DoubleClickChecker), &close_style);
g_signal_connect(G_OBJECT(tree), "key_press_event", G_CALLBACK(AllowDefault), window);
// Select the default IWAD.
selection = gtk_tree_view_get_selection (GTK_TREE_VIEW(tree));
gtk_tree_selection_select_iter (selection, &defiter);
// Create the hbox for the bottom row.
hbox = gtk_hbox_new (FALSE, 0);
gtk_box_pack_end (GTK_BOX(vbox), hbox, false, false, 0);
// Create the "Don't ask" checkbox.
check = gtk_check_button_new_with_label ("Don't ask me this again");
gtk_box_pack_start (GTK_BOX(hbox), check, false, false, 0);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON(check), !showwin);
// Create the OK/Cancel button box.
bbox = gtk_hbutton_box_new ();
gtk_button_box_set_layout (GTK_BUTTON_BOX(bbox), GTK_BUTTONBOX_END);
gtk_box_set_spacing (GTK_BOX(bbox), 10);
gtk_box_pack_end (GTK_BOX(hbox), bbox, false, false, 0);
// Create the OK button.
widget = gtk_button_new_from_stock (GTK_STOCK_OK);
gtk_box_pack_start (GTK_BOX(bbox), widget, false, false, 0);
GTK_WIDGET_SET_FLAGS (widget, GTK_CAN_DEFAULT);
gtk_widget_grab_default (widget);
g_signal_connect (widget, "clicked", G_CALLBACK(ClickedOK), &close_style);
g_signal_connect (widget, "activate", G_CALLBACK(ClickedOK), &close_style);
// Create the cancel button.
widget = gtk_button_new_from_stock (GTK_STOCK_CANCEL);
gtk_box_pack_start (GTK_BOX(bbox), widget, false, false, 0);
g_signal_connect (widget, "clicked", G_CALLBACK(gtk_main_quit), &window);
// Finally we can show everything.
gtk_widget_show_all (window);
gtk_main ();
if (close_style == 1)
{
GtkTreeModel *model;
GValue value = { 0, { {0} } };
// Find out which IWAD was selected.
gtk_tree_selection_get_selected (selection, &model, &iter);
gtk_tree_model_get_value (GTK_TREE_MODEL(model), &iter, 2, &value);
i = g_value_get_int (&value);
g_value_unset (&value);
// Set state of queryiwad based on the checkbox.
queryiwad = !gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON(check));
}
else
{
i = -1;
}
if (GTK_IS_WINDOW(window))
{
gtk_widget_destroy (window);
// If we don't do this, then the X window might not actually disappear.
while (g_main_context_iteration (NULL, FALSE)) {}
}
return i;
}
#endif
int I_PickIWad (WadStuff *wads, int numwads, bool showwin, int defaultiwad)
{
int i;
if (!showwin)
{
return defaultiwad;
}
#if !defined(__APPLE__)
const char *str;
if((str=getenv("KDE_FULL_SESSION")) && strcmp(str, "true") == 0)
{
FString cmd("kdialog --title \"" GAMESIG " ");
cmd << GetVersionString() << ": Select an IWAD to use\""
" --menu \"ZDoom found more than one IWAD\n"
"Select from the list below to determine which one to use:\"";
for(i = 0; i < numwads; ++i)
{
const char *filepart = strrchr(wads[i].Path, '/');
if(filepart == NULL)
filepart = wads[i].Path;
else
filepart++;
// Menu entries are specified in "tag" "item" pairs, where when a
// particular item is selected (and the Okay button clicked), its
// corresponding tag is printed to stdout for identification.
cmd.AppendFormat(" \"%d\" \"%s (%s)\"", i, wads[i].Name.GetChars(), filepart);
}
if(defaultiwad >= 0 && defaultiwad < numwads)
{
const char *filepart = strrchr(wads[defaultiwad].Path, '/');
if(filepart == NULL)
filepart = wads[defaultiwad].Path;
else
filepart++;
cmd.AppendFormat(" --default \"%s (%s)\"", wads[defaultiwad].Name.GetChars(), filepart);
}
FILE *f = popen(cmd, "r");
if(f != NULL)
{
char gotstr[16];
if(fgets(gotstr, sizeof(gotstr), f) == NULL ||
sscanf(gotstr, "%d", &i) != 1)
i = -1;
// Exit status = 1 means the selection was canceled (either by
// Cancel/Esc or the X button), not that there was an error running
// the program. In that case, nothing was printed so fgets will
// have failed. Other values can indicate an error running the app,
// so fall back to whatever else can be used.
int status = pclose(f);
if(WIFEXITED(status) && (WEXITSTATUS(status) == 0 || WEXITSTATUS(status) == 1))
return i;
}
}
#endif
#ifndef NO_GTK
if (GtkAvailable)
{
return I_PickIWad_Gtk (wads, numwads, showwin, defaultiwad);
}
#elif defined(__APPLE__)
return I_PickIWad_Cocoa (wads, numwads, showwin, defaultiwad);
#endif
printf ("Please select a game wad (or 0 to exit):\n");
for (i = 0; i < numwads; ++i)
{
const char *filepart = strrchr (wads[i].Path, '/');
if (filepart == NULL)
filepart = wads[i].Path;
else
filepart++;
printf ("%d. %s (%s)\n", i+1, wads[i].Name.GetChars(), filepart);
}
printf ("Which one? ");
if (scanf ("%d", &i) != 1 || i > numwads)
return -1;
return i-1;
}
bool I_WriteIniFailed ()
{
printf ("The config file %s could not be saved:\n%s\n", GameConfig->GetPathName(), strerror(errno));
return false;
// return true to retry
}
static const char *pattern;
#if defined(__APPLE__) && MAC_OS_X_VERSION_MAX_ALLOWED < 1080
static int matchfile (struct dirent *ent)
#else
static int matchfile (const struct dirent *ent)
#endif
{
return fnmatch (pattern, ent->d_name, FNM_NOESCAPE) == 0;
}
void *I_FindFirst (const char *filespec, findstate_t *fileinfo)
{
FString dir;
const char *slash = strrchr (filespec, '/');
if (slash)
{
pattern = slash+1;
dir = FString(filespec, slash-filespec+1);
}
else
{
pattern = filespec;
dir = ".";
}
fileinfo->current = 0;
fileinfo->count = scandir (dir.GetChars(), &fileinfo->namelist,
matchfile, alphasort);
if (fileinfo->count > 0)
{
return fileinfo;
}
return (void*)-1;
}
int I_FindNext (void *handle, findstate_t *fileinfo)
{
findstate_t *state = (findstate_t *)handle;
if (state->current < fileinfo->count)
{
return ++state->current < fileinfo->count ? 0 : -1;
}
return -1;
}
int I_FindClose (void *handle)
{
findstate_t *state = (findstate_t *)handle;
if (handle != (void*)-1 && state->count > 0)
{
for(int i = 0;i < state->count;++i)
free (state->namelist[i]);
state->count = 0;
free (state->namelist);
state->namelist = NULL;
}
return 0;
}
int I_FindAttr (findstate_t *fileinfo)
{
dirent *ent = fileinfo->namelist[fileinfo->current];
struct stat buf;
if (stat(ent->d_name, &buf) == 0)
{
return S_ISDIR(buf.st_mode) ? FA_DIREC : 0;
}
return 0;
}
// Clipboard support requires GTK+
// TODO: GTK+ uses UTF-8. We don't, so some conversions would be appropriate.
void I_PutInClipboard (const char *str)
{
#ifndef NO_GTK
if (GtkAvailable)
{
GtkClipboard *clipboard = gtk_clipboard_get(GDK_SELECTION_CLIPBOARD);
if (clipboard != NULL)
{
gtk_clipboard_set_text(clipboard, str, -1);
}
/* Should I? I don't know. It's not actually a selection.
clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
if (clipboard != NULL)
{
gtk_clipboard_set_text(clipboard, str, -1);
}
*/
}
#endif
}
FString I_GetFromClipboard (bool use_primary_selection)
{
#ifndef NO_GTK
if (GtkAvailable)
{
GtkClipboard *clipboard = gtk_clipboard_get(use_primary_selection ?
GDK_SELECTION_PRIMARY : GDK_SELECTION_CLIPBOARD);
if (clipboard != NULL)
{
gchar *text = gtk_clipboard_wait_for_text(clipboard);
if (text != NULL)
{
FString copy(text);
g_free(text);
return copy;
}
}
}
#endif
return "";
}
// Return a random seed, preferably one with lots of entropy.
unsigned int I_MakeRNGSeed()
{
unsigned int seed;
int file;
// Try reading from /dev/urandom first, then /dev/random, then
// if all else fails, use a crappy seed from time().
seed = time(NULL);
file = open("/dev/urandom", O_RDONLY);
if (file < 0)
{
file = open("/dev/random", O_RDONLY);
}
if (file >= 0)
{
read(file, &seed, sizeof(seed));
close(file);
}
return seed;
}
#ifdef USE_XCURSOR
// Hack! Hack! SDL does not provide a clean way to get the XDisplay.
// On the other hand, there are no more planned updates for SDL 1.2,
// so we should be fine making assumptions.
struct SDL_PrivateVideoData
{
int local_X11;
Display *X11_Display;
};
struct SDL_VideoDevice
{
const char *name;
int (*functions[9])();
SDL_VideoInfo info;
SDL_PixelFormat *displayformatalphapixel;
int (*morefuncs[9])();
Uint16 *gamma;
int (*somefuncs[9])();
unsigned int texture; // Only here if SDL was compiled with OpenGL support. Ack!
int is_32bit;
int (*itsafuncs[13])();
SDL_Surface *surfaces[3];
SDL_Palette *physpal;
SDL_Color *gammacols;
char *wm_strings[2];
int offsets[2];
SDL_GrabMode input_grab;
int handles_any_size;
SDL_PrivateVideoData *hidden; // Why did they have to bury this so far in?
};
extern SDL_VideoDevice *current_video;
#define SDL_Display (current_video->hidden->X11_Display)
SDL_Cursor *CreateColorCursor(FTexture *cursorpic)
{
return NULL;
}
#endif
SDL_Surface *cursorSurface = NULL;
SDL_Rect cursorBlit = {0, 0, 32, 32};
bool I_SetCursor(FTexture *cursorpic)
{
if (cursorpic != NULL && cursorpic->UseType != FTexture::TEX_Null)
{
// Must be no larger than 32x32.
if (cursorpic->GetWidth() > 32 || cursorpic->GetHeight() > 32)
{
return false;
}
#ifdef USE_XCURSOR
if (UseXCursor)
{
if (FirstCursor == NULL)
{
FirstCursor = SDL_GetCursor();
}
X11Cursor = CreateColorCursor(cursorpic);
if (X11Cursor != NULL)
{
SDL_SetCursor(X11Cursor);
return true;
}
}
#endif
if (cursorSurface == NULL)
cursorSurface = SDL_CreateRGBSurface (0, 32, 32, 32, MAKEARGB(0,255,0,0), MAKEARGB(0,0,255,0), MAKEARGB(0,0,0,255), MAKEARGB(255,0,0,0));
SDL_ShowCursor(0);
SDL_LockSurface(cursorSurface);
BYTE buffer[32*32*4];
memset(buffer, 0, 32*32*4);
FBitmap bmp(buffer, 32*4, 32, 32);
cursorpic->CopyTrueColorPixels(&bmp, 0, 0);
memcpy(cursorSurface->pixels, bmp.GetPixels(), 32*32*4);
SDL_UnlockSurface(cursorSurface);
}
else
{
SDL_ShowCursor(1);
if (cursorSurface != NULL)
{
SDL_FreeSurface(cursorSurface);
cursorSurface = NULL;
}
#ifdef USE_XCURSOR
if (X11Cursor != NULL)
{
SDL_SetCursor(FirstCursor);
SDL_FreeCursor(X11Cursor);
X11Cursor = NULL;
}
#endif
}
return true;
}