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/*
* Copyright (c) 1997 - 2001 Hansjrg Malthaner
*
* This file is part of the Simutrans project under the artistic license.
*/
#include <SDL.h>
#ifdef _WIN32
#include <windows.h>
#endif
#include <stdio.h>
#include "macros.h"
#include "simsys_w32_png.h"
#include "simversion.h"
#include "simsys.h"
#include "simevent.h"
#include "display/simgraph.h"
#include "simdebug.h"
static Uint8 hourglass_cursor[] = {
0x3F, 0xFE, // *************
0x30, 0x06, // ** **
0x3F, 0xFE, // *************
0x10, 0x04, // * *
0x10, 0x04, // * *
0x12, 0xA4, // * * * * *
0x11, 0x44, // * * * * *
0x18, 0x8C, // ** * **
0x0C, 0x18, // ** **
0x06, 0xB0, // ** * **
0x03, 0x60, // ** **
0x03, 0x60, // **H**
0x06, 0x30, // ** * **
0x0C, 0x98, // ** **
0x18, 0x0C, // ** * **
0x10, 0x84, // * * *
0x11, 0x44, // * * * *
0x12, 0xA4, // * * * * *
0x15, 0x54, // * * * * * *
0x3F, 0xFE, // *************
0x30, 0x06, // ** **
0x3F, 0xFE // *************
};
static Uint8 hourglass_cursor_mask[] = {
0x3F, 0xFE, // *************
0x3F, 0xFE, // *************
0x3F, 0xFE, // *************
0x1F, 0xFC, // ***********
0x1F, 0xFC, // ***********
0x1F, 0xFC, // ***********
0x1F, 0xFC, // ***********
0x1F, 0xFC, // ***********
0x0F, 0xF8, // *********
0x07, 0xF0, // *******
0x03, 0xE0, // *****
0x03, 0xE0, // **H**
0x07, 0xF0, // *******
0x0F, 0xF8, // *********
0x1F, 0xFC, // ***********
0x1F, 0xFC, // ***********
0x1F, 0xFC, // ***********
0x1F, 0xFC, // ***********
0x1F, 0xFC, // ***********
0x3F, 0xFE, // *************
0x3F, 0xFE, // *************
0x3F, 0xFE // *************
};
static Uint8 blank_cursor[] = {
0x0,
0x0,
};
static SDL_Surface *screen;
static int width = 16;
static int height = 16;
// switch on is a little faster (<3%)
static int async_blit = 0;
// try to use hardware double buffering ...
static int use_hw = 0;
static SDL_Cursor* arrow;
static SDL_Cursor* hourglass;
static SDL_Cursor* blank;
#ifdef MULTI_THREAD
#include "utils/simthread.h"
static simthread_barrier_t redraw_barrier;
static pthread_mutex_t redraw_mutex = PTHREAD_MUTEX_INITIALIZER;
// parameters passed starting a thread
typedef struct{
pthread_t thread;
bool ready;
} redraw_param_t;
static redraw_param_t redraw_param;
void* redraw_thread( void* ptr )
{
while(true) {
simthread_barrier_wait( &redraw_barrier ); // wait to start
pthread_mutex_lock( &redraw_mutex );
if ( ((redraw_param_t*)ptr)->ready ) {
pthread_mutex_unlock( &redraw_mutex );
break;
}
display_flush_buffer();
if( use_hw ) {
SDL_UnlockSurface( screen );
SDL_Flip( screen );
SDL_LockSurface( screen );
}
pthread_mutex_unlock( &redraw_mutex );
}
return ptr;
}
#else
// SDL_Rects so SDL_UpdateRects can be used instead of SDL_UpdateRect when single threaded. (Update Rects is slower when multithreaded)
#define MAX_SDL_RECTS 2048
static int num_SDL_Rects = 0;
static SDL_Rect SDL_Rects[MAX_SDL_RECTS];
#endif
// no autoscaling yet
bool dr_auto_scale(bool)
{
return false;
}
/*
* Hier sind die Basisfunktionen zur Initialisierung der
* Schnittstelle untergebracht
* -> init,open,close
*/
bool dr_os_init(const int* parameter)
{
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE) != 0) {
fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
return false;
}
async_blit = parameter[0];
#ifdef USE_HW
// force if old compile directive set
use_hw = 1;
#else
use_hw = parameter[1];
#endif
// prepare for next event
sys_event.type = SIM_NOEVENT;
sys_event.code = 0;
atexit(SDL_Quit); // clean up on exit
return true;
}
resolution dr_query_screen_resolution()
{
resolution res;
#if SDL_VERSION_ATLEAST(1, 2, 10)
SDL_VideoInfo const& vi = *SDL_GetVideoInfo();
res.w = vi.current_w;
res.h = vi.current_h;
#elif defined _WIN32
res.w = GetSystemMetrics(SM_CXSCREEN);
res.h = GetSystemMetrics(SM_CYSCREEN);
#else
SDL_Rect** const modi = SDL_ListModes(0, SDL_FULLSCREEN);
if (modi && modi != (SDL_Rect**)-1) {
// return first
res.w = modi[0]->w;
res.h = modi[0]->h;
} else {
res.w = 704;
res.h = 560;
}
#endif
return res;
}
// open the window
int dr_os_open(int w, int const h, int const fullscreen)
{
#ifdef MULTI_THREAD
// init barrier
simthread_barrier_init( &redraw_barrier, NULL, 2);
// Initialize and set thread detached attribute
pthread_attr_t attr;
pthread_attr_init( &attr );
pthread_attr_setdetachstate( &attr, PTHREAD_CREATE_DETACHED);
redraw_param.ready = false;
if( pthread_create( &(redraw_param.thread), &attr, redraw_thread, (void*)&redraw_param ) ) {
fprintf(stderr, "dr_os_open(): cannot multithread\n");
return 0;
}
pthread_attr_destroy( &attr );
#endif
Uint32 flags = async_blit ? SDL_ASYNCBLIT : 0;
// some cards need those alignments
// especially 64bit want a border of 8bytes
w = (w + 15) & 0x7FF0;
if( w<=0 ) {
w = 16;
}
width = w;
height = h;
flags |= (fullscreen ? SDL_FULLSCREEN : SDL_RESIZABLE);
if( use_hw ) {
flags |= SDL_HWSURFACE | SDL_DOUBLEBUF; // bltcopy in graphic memory should be faster ...
}
// open the window now
SDL_putenv("SDL_VIDEO_CENTERED=center"); // request game window centered to stop it opening off screen since SDL1.2 has no way to open at a fixed position
screen = SDL_SetVideoMode( w, h, COLOUR_DEPTH, flags );
SDL_putenv("SDL_VIDEO_CENTERED="); // clear flag so it doesn't continually recenter upon resizing the window
if( screen == NULL ) {
fprintf(stderr, "Couldn't open the window: %s\n", SDL_GetError());
return 0;
}
else {
const SDL_VideoInfo* vi = SDL_GetVideoInfo();
char driver_name[128];
SDL_VideoDriverName( driver_name, lengthof(driver_name) );
fprintf(stderr, "SDL_driver=%s, hw_available=%i, video_mem=%i, blit_sw=%i, bpp=%i, bytes=%i\n", driver_name, vi->hw_available, vi->video_mem, vi->blit_sw, vi->vfmt->BitsPerPixel, vi->vfmt->BytesPerPixel );
fprintf(stderr, "Screen Flags: requested=%x, actual=%x\n", flags, screen->flags );
}
printf("dr_os_open(SDL): SDL realized screen size width=%d, height=%d (requested w=%d, h=%d)\n", screen->w, screen->h, w, h );
SDL_EnableUNICODE(true);
SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);
// set the caption for the window
SDL_WM_SetCaption(SIM_TITLE, 0);
SDL_ShowCursor(0);
arrow = SDL_GetCursor();
hourglass = SDL_CreateCursor(hourglass_cursor, hourglass_cursor_mask, 16, 22, 8, 11);
blank = SDL_CreateCursor(blank_cursor, blank_cursor, 8, 2, 0, 0);
SDL_ShowCursor(1);
display_set_actual_width( w );
return w;
}
// shut down SDL
void dr_os_close()
{
#ifdef MULTI_THREAD
// signal thread to return
pthread_mutex_lock( &redraw_mutex );
redraw_param.ready = true;
pthread_mutex_unlock( &redraw_mutex );
// .. and join
pthread_join(redraw_param.thread, NULL);
#endif
SDL_FreeCursor(hourglass);
SDL_FreeCursor(blank);
// Hajo: SDL doc says, screen is freed by SDL_Quit and should not be
// freed by the user
// SDL_FreeSurface(screen);
}
// resizes screen
int dr_textur_resize(unsigned short** const textur, int w, int const h)
{
#ifdef MULTI_THREAD
pthread_mutex_lock( &redraw_mutex );
#endif
if( use_hw ) {
SDL_UnlockSurface( screen );
}
Uint32 flags = screen->flags;
display_set_actual_width( w );
// some cards need those alignments
// especially 64bit want a border of 8bytes
w = (w + 15) & 0x7FF0;
if( w<=0 ) {
w = 16;
}
if( w!=screen->w || h!=screen->h ) {
width = w;
height = h;
screen = SDL_SetVideoMode(w, h, COLOUR_DEPTH, flags);
printf("textur_resize()::screen=%p\n", screen);
if (screen) {
DBG_MESSAGE("dr_textur_resize(SDL)", "SDL realized screen size width=%d, height=%d (requested w=%d, h=%d)", screen->w, screen->h, w, h);
}
else {
if (dbg) {
dbg->warning("dr_textur_resize(SDL)", "screen is NULL. Good luck!");
}
}
fflush(NULL);
}
*textur = (unsigned short*)screen->pixels;
#ifdef MULTI_THREAD
pthread_mutex_unlock( &redraw_mutex );
#endif
return w;
}
unsigned short *dr_textur_init()
{
if( use_hw ) {
SDL_LockSurface( screen );
}
return (unsigned short*)screen->pixels;
}
/**
* Transform a 24 bit RGB color into the system format.
* @return converted color value
* @author Hj. Malthaner
*/
unsigned int get_system_color(unsigned int r, unsigned int g, unsigned int b)
{
return SDL_MapRGB(screen->format, (Uint8)r, (Uint8)g, (Uint8)b);
}
void dr_prepare_flush()
{
#ifdef MULTI_THREAD
pthread_mutex_lock( &redraw_mutex );
#endif
return;
}
void dr_flush()
{
#ifdef MULTI_THREAD
pthread_mutex_unlock( &redraw_mutex );
simthread_barrier_wait( &redraw_barrier ); // start thread
#else
display_flush_buffer();
if( use_hw ) {
SDL_UnlockSurface( screen );
SDL_Flip( screen );
SDL_LockSurface( screen );
}
else {
if( num_SDL_Rects > 0 ) {
if( num_SDL_Rects < MAX_SDL_RECTS ) {
SDL_UpdateRects( screen, num_SDL_Rects, SDL_Rects );
}
else {
// too many Rects, just update the whole screen
SDL_UpdateRect( screen, 0, 0, 0, 0);
}
num_SDL_Rects = 0;
}
}
#endif
}
void dr_textur(int xp, int yp, int w, int h)
{
if( !use_hw ) {
// make sure the given rectangle is completely on screen
if( xp + w > screen->w ) {
w = screen->w - xp;
}
if( yp + h > screen->h ) {
h = screen->h - yp;
}
#ifdef DEBUG
// make sure both are positive numbers
if( w*h > 0 )
#endif
{
#ifdef MULTI_THREAD
SDL_UpdateRect( screen, xp, yp, w, h );
#else
if( num_SDL_Rects < MAX_SDL_RECTS ) {
SDL_Rects[num_SDL_Rects].x = xp;
SDL_Rects[num_SDL_Rects].y = yp;
SDL_Rects[num_SDL_Rects].w = w;
SDL_Rects[num_SDL_Rects].h = h;
num_SDL_Rects++;
}
#endif
}
}
}
// move cursor to the specified location
void move_pointer(int x, int y)
{
SDL_WarpMouse((Uint16)x, (Uint16)y);
}
// set the mouse cursor (pointer/load)
void set_pointer(int loading)
{
SDL_SetCursor(loading ? hourglass : arrow);
}
/**
* Some wrappers can save screenshots.
* @return 1 on success, 0 if not implemented for a particular wrapper and -1
* in case of error.
* @author Hj. Malthaner
*/
int dr_screenshot(const char *filename, int x, int y, int w, int h)
{
#ifdef WIN32
if( dr_screenshot_png(filename, w, h, width, ((unsigned short *)(screen->pixels))+x+y*width, screen->format->BitsPerPixel ) ) {
return 1;
}
#endif
(void)(x+y+w+h);
return SDL_SaveBMP(SDL_GetVideoSurface(), filename) == 0 ? 1 : -1;
}
/*
* Hier sind die Funktionen zur Messageverarbeitung
*/
static inline unsigned int ModifierKeys()
{
SDLMod mod = SDL_GetModState();
return
(mod & KMOD_SHIFT ? 1 : 0) |
(mod & KMOD_CTRL ? 2 : 0);
}
static int conv_mouse_buttons(Uint8 const state)
{
return
(state & SDL_BUTTON_LMASK ? MOUSE_LEFTBUTTON : 0) |
(state & SDL_BUTTON_MMASK ? MOUSE_MIDBUTTON : 0) |
(state & SDL_BUTTON_RMASK ? MOUSE_RIGHTBUTTON : 0);
}
static void internal_GetEvents(bool const wait)
{
SDL_Event event;
event.type = 1;
if (wait) {
int n;
do {
SDL_WaitEvent(&event);
n = SDL_PollEvent(NULL);
} while (n != 0 && event.type == SDL_MOUSEMOTION);
}
else {
int n;
bool got_one = false;
do {
n = SDL_PollEvent(&event);
if (n != 0) {
got_one = true;
if (event.type == SDL_MOUSEMOTION) {
sys_event.type = SIM_MOUSE_MOVE;
sys_event.code = SIM_MOUSE_MOVED;
sys_event.mx = event.motion.x;
sys_event.my = event.motion.y;
sys_event.mb = conv_mouse_buttons(event.motion.state);
}
}
} while (n != 0 && event.type == SDL_MOUSEMOTION);
if (!got_one) return;
}
switch (event.type) {
case SDL_VIDEORESIZE:
sys_event.type = SIM_SYSTEM;
sys_event.code = SYSTEM_RESIZE;
sys_event.size_x = event.resize.w;
sys_event.size_y = event.resize.h;
printf("expose: x=%i, y=%i\n", sys_event.mx, sys_event.my);
break;
case SDL_MOUSEBUTTONDOWN:
sys_event.type = SIM_MOUSE_BUTTONS;
sys_event.key_mod = ModifierKeys();
sys_event.mx = event.button.x;
sys_event.my = event.button.y;
sys_event.mb = conv_mouse_buttons(SDL_GetMouseState(0, 0));
switch (event.button.button) {
case 1: sys_event.code = SIM_MOUSE_LEFTBUTTON; break;
case 2: sys_event.code = SIM_MOUSE_MIDBUTTON; break;
case 3: sys_event.code = SIM_MOUSE_RIGHTBUTTON; break;
case 4: sys_event.code = SIM_MOUSE_WHEELUP; break;
case 5: sys_event.code = SIM_MOUSE_WHEELDOWN; break;
}
break;
case SDL_MOUSEBUTTONUP:
sys_event.type = SIM_MOUSE_BUTTONS;
sys_event.key_mod = ModifierKeys();
sys_event.mx = event.button.x;
sys_event.my = event.button.y;
sys_event.mb = conv_mouse_buttons(SDL_GetMouseState(0, 0));
switch (event.button.button) {
case 1: sys_event.code = SIM_MOUSE_LEFTUP; break;
case 2: sys_event.code = SIM_MOUSE_MIDUP; break;
case 3: sys_event.code = SIM_MOUSE_RIGHTUP; break;
}
break;
case SDL_KEYDOWN:
{
unsigned long code;
#ifdef _WIN32
// SDL doesn't set numlock state correctly on startup. Revert to win32 function as workaround.
const bool numlock = (GetKeyState(VK_NUMLOCK) & 1) != 0;
#else
const bool numlock = SDL_GetModState() & KMOD_NUM;
#endif
SDLKey const sym = event.key.keysym.sym;
switch (sym) {
case SDLK_DELETE: code = 127; break;
case SDLK_DOWN: code = SIM_KEY_DOWN; break;
case SDLK_END: code = SIM_KEY_END; break;
case SDLK_HOME: code = SIM_KEY_HOME; break;
case SDLK_F1: code = SIM_KEY_F1; break;
case SDLK_F2: code = SIM_KEY_F2; break;
case SDLK_F3: code = SIM_KEY_F3; break;
case SDLK_F4: code = SIM_KEY_F4; break;
case SDLK_F5: code = SIM_KEY_F5; break;
case SDLK_F6: code = SIM_KEY_F6; break;
case SDLK_F7: code = SIM_KEY_F7; break;
case SDLK_F8: code = SIM_KEY_F8; break;
case SDLK_F9: code = SIM_KEY_F9; break;
case SDLK_F10: code = SIM_KEY_F10; break;
case SDLK_F11: code = SIM_KEY_F11; break;
case SDLK_F12: code = SIM_KEY_F12; break;
case SDLK_F13: code = SIM_KEY_F13; break;
case SDLK_F14: code = SIM_KEY_F14; break;
case SDLK_F15: code = SIM_KEY_F15; break;
case SDLK_KP0: code = numlock ? '0' : 0; break;
case SDLK_KP1: code = numlock ? '1' : SIM_KEY_END; break;
case SDLK_KP2: code = numlock ? '2' : SIM_KEY_DOWN; break;
case SDLK_KP3: code = numlock ? '3' : '<'; break;
case SDLK_KP4: code = numlock ? '4' : SIM_KEY_LEFT; break;
case SDLK_KP5: code = numlock ? '5' : 0; break;
case SDLK_KP6: code = numlock ? '6' : SIM_KEY_RIGHT; break;
case SDLK_KP7: code = numlock ? '7' : SIM_KEY_HOME; break;
case SDLK_KP8: code = numlock ? '8' : SIM_KEY_UP; break;
case SDLK_KP9: code = numlock ? '9' : '>'; break;
case SDLK_LEFT: code = SIM_KEY_LEFT; break;
case SDLK_PAGEDOWN: code = '<'; break;
case SDLK_PAGEUP: code = '>'; break;
case SDLK_RIGHT: code = SIM_KEY_RIGHT; break;
case SDLK_UP: code = SIM_KEY_UP; break;
case SDLK_PAUSE: code = 16; break;
default:
if (event.key.keysym.unicode != 0) {
code = event.key.keysym.unicode;
if (event.key.keysym.unicode == 22 /* ^V */) {
#if 0 // disabled as internal buffer is used; code is retained for possible future implementation of dr_paste()
// X11 magic ... not tested yet!
SDL_SysWMinfo si;
if (SDL_GetWMInfo(&si) && si.subsystem == SDL_SYSWM_X11) {
// clipboard under X11
XEvent evt;
Atom sseln = XA_CLIPBOARD(si.x11.display);
Atom target = XA_STRING;
unsigned char* sel_buf = 0;
unsigned long sel_len = 0; /* length of sel_buf */
unsigned int context = XCLIB_XCOUT_NONE;
xcout(si.x11.display, si.x11.window, evt, sseln, target, &sel_buf, &sel_len, &context);
/* fallback is needed. set XA_STRING to target and restart the loop. */
if (context != XCLIB_XCOUT_FALLBACK) {
// something in clipboard
SDL_Event new_event;
new_event.type = SDL_KEYDOWN;
new_event.key.keysym.sym = SDLK_UNKNOWN;
for (unsigned char const* chr = sel_buf; sel_len-- >= 0; ++chr) {
new_event.key.keysym.sym = *chr == '\n' ? '\r' : *chr;
SDL_PushEvent(&new_event);
}
free(sel_buf);
}
}
#endif
}
} else if (0 < sym && sym < 127) {
code = event.key.keysym.sym; // try with the ASCII code
} else {
code = 0;
}
}
sys_event.type = SIM_KEYBOARD;
sys_event.code = code;
sys_event.key_mod = ModifierKeys();
break;
}
case SDL_MOUSEMOTION:
sys_event.type = SIM_MOUSE_MOVE;
sys_event.code = SIM_MOUSE_MOVED;
sys_event.mx = event.motion.x;
sys_event.my = event.motion.y;
sys_event.mb = conv_mouse_buttons(event.motion.state);
sys_event.key_mod = ModifierKeys();
break;
case SDL_ACTIVEEVENT:
case SDL_KEYUP:
sys_event.type = SIM_KEYBOARD;
sys_event.code = 0;
break;
case SDL_QUIT:
sys_event.type = SIM_SYSTEM;
sys_event.code = SYSTEM_QUIT;
break;
default:
sys_event.type = SIM_IGNORE_EVENT;
sys_event.code = 0;
break;
}
}
void GetEvents()
{
internal_GetEvents(true);
}
void GetEventsNoWait()
{
sys_event.type = SIM_NOEVENT;
sys_event.code = 0;
internal_GetEvents(false);
}
void show_pointer(int yesno)
{
SDL_SetCursor((yesno != 0) ? arrow : blank);
}
void ex_ord_update_mx_my()
{
SDL_PumpEvents();
}
uint32 dr_time()
{
return SDL_GetTicks();
}
void dr_sleep(uint32 usec)
{
SDL_Delay(usec);
}
void dr_start_textinput()
{
}
void dr_stop_textinput()
{
}
void dr_notify_input_pos(int, int)
{
}
#ifdef _MSC_VER
// Needed for MS Visual C++ with /SUBSYSTEM:CONSOLE to work , if /SUBSYSTEM:WINDOWS this function is compiled but unreachable
#undef main
int main()
{
return WinMain(NULL,NULL,NULL,NULL);
}
#endif
#ifdef _WIN32
int CALLBACK WinMain(HINSTANCE, HINSTANCE, LPSTR, int)
#else
int main(int argc, char **argv)
#endif
{
#ifdef _WIN32
int const argc = __argc;
char** const argv = __argv;
#endif
return sysmain(argc, argv);
}
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