src/video/qtopia/SDL_QWin.cc
author Ozkan Sezer <sezeroz@gmail.com>
Sun, 14 Oct 2018 15:25:04 +0300
branchSDL-1.2
changeset 12325 c4f2eeda176f
parent 6137 4720145f848b
permissions -rw-r--r--
remove symlink for libSDL-1.0.so.0 from the rpm spec file.

also fix a changelog date.
     1 /*
     2     SDL - Simple DirectMedia Layer
     3     Copyright (C) 1997-2012 Sam Lantinga
     4 
     5     This library is free software; you can redistribute it and/or
     6     modify it under the terms of the GNU Lesser General Public
     7     License as published by the Free Software Foundation; either
     8     version 2.1 of the License, or (at your option) any later version.
     9 
    10     This library is distributed in the hope that it will be useful,
    11     but WITHOUT ANY WARRANTY; without even the implied warranty of
    12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    13     Lesser General Public License for more details.
    14 
    15     You should have received a copy of the GNU Lesser General Public
    16     License along with this library; if not, write to the Free Software
    17     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
    18 
    19     Sam Lantinga
    20     slouken@libsdl.org
    21 */
    22 #include "SDL_config.h"
    23 
    24 #include "SDL_QWin.h"
    25 #include <qapplication.h>
    26 #include <qdirectpainter_qws.h>
    27 
    28 screenRotationT screenRotation = SDL_QT_NO_ROTATION;
    29 
    30 SDL_QWin::SDL_QWin(const QSize& size)
    31   : QWidget(0, "SDL_main"), my_painter(0), my_image(0),
    32     my_inhibit_resize(false), my_mouse_pos(-1,-1), my_flags(0),
    33     my_has_fullscreen(false), my_locked(0)
    34 {
    35   setBackgroundMode(NoBackground);
    36 }
    37 
    38 SDL_QWin::~SDL_QWin() {
    39   // Nothing to do yet.
    40   if(my_image) {
    41     delete my_image;
    42   }
    43 }
    44 
    45 void SDL_QWin::setImage(QImage *image) {
    46   if ( my_image ) {
    47     delete my_image;
    48   }
    49   my_image = image;
    50   //  setFixedSize(image->size());
    51 }
    52 
    53 void SDL_QWin::resizeEvent(QResizeEvent *e) {
    54   if(size() != qApp->desktop()->size()) {
    55     // Widget is not the correct size, so do the fullscreen magic
    56     my_has_fullscreen = false;
    57     enableFullscreen();
    58   }
    59   if(my_inhibit_resize) {
    60     my_inhibit_resize = false;
    61   } else {
    62     SDL_PrivateResize(e->size().width(), e->size().height());
    63   }
    64 }
    65 
    66 void SDL_QWin::focusInEvent(QFocusEvent *) {
    67   // Always do it here, no matter the size.
    68   enableFullscreen();
    69   SDL_PrivateAppActive(true, SDL_APPINPUTFOCUS);
    70 }
    71 
    72 void SDL_QWin::focusOutEvent(QFocusEvent *) {
    73   my_has_fullscreen = false;
    74   SDL_PrivateAppActive(false, SDL_APPINPUTFOCUS);
    75 }
    76 
    77 void SDL_QWin::closeEvent(QCloseEvent *e) {
    78   SDL_PrivateQuit();
    79   e->ignore();
    80 }
    81 
    82 void SDL_QWin::setMousePos(const QPoint &pos) {
    83   if(my_image->width() == height()) {
    84     if (screenRotation == SDL_QT_ROTATION_90)
    85       my_mouse_pos = QPoint(height()-pos.y(), pos.x());
    86     else if (screenRotation == SDL_QT_ROTATION_270)
    87       my_mouse_pos = QPoint(pos.y(), width()-pos.x());
    88   } else {
    89     my_mouse_pos = pos;
    90   }
    91 }
    92 
    93 void SDL_QWin::mouseMoveEvent(QMouseEvent *e) {
    94   Qt::ButtonState button = e->button();
    95   int sdlstate = 0;
    96   if( (button & Qt::LeftButton)) {
    97     sdlstate |= SDL_BUTTON_LMASK;
    98   }
    99   if( (button & Qt::RightButton)) {
   100     sdlstate |= SDL_BUTTON_RMASK;
   101   }
   102   if( (button & Qt::MidButton)) {
   103     sdlstate |= SDL_BUTTON_MMASK;
   104   }
   105   setMousePos(e->pos());
   106   SDL_PrivateMouseMotion(sdlstate, 0, my_mouse_pos.x(), my_mouse_pos.y());
   107 }
   108 
   109 void SDL_QWin::mousePressEvent(QMouseEvent *e) {
   110   mouseMoveEvent(e);
   111   Qt::ButtonState button = e->button();
   112   SDL_PrivateMouseButton(SDL_PRESSED,
   113 			 (button & Qt::LeftButton) ? 1 :
   114 			 ((button & Qt::RightButton) ? 2 : 3),
   115 			 my_mouse_pos.x(), my_mouse_pos.y());
   116 }
   117 
   118 void SDL_QWin::mouseReleaseEvent(QMouseEvent *e) {
   119   setMousePos(e->pos());
   120   Qt::ButtonState button = e->button();
   121   SDL_PrivateMouseButton(SDL_RELEASED,
   122 			 (button & Qt::LeftButton) ? 1 :
   123 			 ((button & Qt::RightButton) ? 2 : 3),
   124 			 my_mouse_pos.x(), my_mouse_pos.y());
   125   my_mouse_pos = QPoint(-1, -1);
   126 }
   127 
   128 static inline void
   129 gs_fastRotateBlit_3 ( unsigned short *fb,
   130 		      unsigned short *bits,
   131 		      const QRect& rect )
   132 {
   133   // FIXME: this only works correctly for 240x320 displays
   134   int startx, starty;
   135   int width, height;
   136   
   137   startx = rect.left() >> 1;
   138   starty = rect.top() >> 1;
   139   width  = ((rect.right() - rect.left()) >> 1) + 2;
   140   height = ((rect.bottom() - rect.top()) >> 1) + 2;
   141 
   142   if((startx+width) > 120) {
   143     width = 120 - startx; // avoid horizontal overflow
   144   }
   145   if((starty+height) > 160) { 
   146     height = 160 - starty; // avoid vertical overflow
   147   }
   148 
   149   ulong *sp1, *sp2, *dp1, *dp2;
   150   ulong stop, sbot, dtop, dbot;    
   151   
   152   sp1 = (ulong*)bits + startx + starty*240;
   153   sp2 = sp1 + 120;
   154   dp1 = (ulong *)fb + (159 - starty) + startx*320;
   155   dp2 = dp1 + 160;
   156   int rowadd = (-320*width) - 1;
   157   int rowadd2 = 240 - width;
   158   // transfer in cells of 2x2 pixels in words
   159   for (int y=0; y<height; y++) {
   160     for (int x=0; x<width; x++) {
   161       // read source pixels
   162       stop = *sp1;
   163       sbot = *sp2;
   164       // rotate pixels
   165       dtop = (sbot & 0xffff) + ((stop & 0xffff)<<16);
   166       dbot = ((sbot & 0xffff0000)>>16) + (stop & 0xffff0000);
   167       // write to framebuffer
   168       *dp1 = dtop;
   169       *dp2 = dbot;
   170       // update source ptrs
   171       sp1++; sp2++;
   172       // update dest ptrs - 2 pix at a time
   173       dp1 += 320;
   174       dp2 += 320;
   175     }
   176     // adjust src ptrs - skip a row as we work in pairs
   177     sp1 += rowadd2;
   178     sp2 += rowadd2;
   179     // adjust dest ptrs for rotation
   180     dp1 += rowadd;
   181     dp2 += rowadd;
   182   }
   183 }
   184 
   185 static inline void
   186 gs_fastRotateBlit_1 ( unsigned short *fb,
   187 		      unsigned short *bits,
   188 		      const QRect& rect ) {
   189   // FIXME: this only works correctly for 240x320 displays
   190   int startx, starty;
   191   int width, height;
   192 
   193   startx = rect.left() >> 1;
   194   starty = rect.top() >> 1;
   195   width  = ((rect.right() - rect.left()) >> 1) + 2;
   196   height = ((rect.bottom() - rect.top()) >> 1) + 2;
   197 
   198   if((startx+width) > 120) {
   199     width = 120 - startx; // avoid horizontal overflow
   200   }
   201   if((starty+height) > 160) { 
   202     height = 160 - starty; // avoid vertical overflow
   203   }
   204 
   205   ulong *sp1, *sp2, *dp1, *dp2;
   206   ulong stop, sbot, dtop, dbot;    
   207   fb += 320*239; // Move "fb" to top left corner
   208   sp1 = (ulong*)bits + startx + starty*240;
   209   sp2 = sp1 + 120;
   210   dp1 = (ulong*)fb - startx * 320 - starty;
   211   dp2 = dp1 - 160;
   212   int rowadd = (320*width) + 1;
   213   int rowadd2 = 240 - width;
   214   // transfer in cells of 2x2 pixels in words
   215   for (int y=0; y<height; y++) {
   216     for (int x=0; x<width; x++) {
   217       // read
   218       stop = *sp1;
   219       sbot = *sp2;
   220       // rotate
   221       dtop = (stop & 0xffff) + ((sbot & 0xffff)<<16);
   222       dbot = ((stop & 0xffff0000)>>16) + (sbot & 0xffff0000);
   223       // write
   224       *dp1 = dtop;
   225       *dp2 = dbot;
   226       // update source ptrs
   227       sp1++; sp2++;
   228       // update dest ptrs - 2 pix at a time
   229       dp1 -= 320;
   230       dp2 -= 320;
   231     }
   232     // adjust src ptrs - skip a row as we work in pairs
   233     sp1 += rowadd2;
   234     sp2 += rowadd2;
   235     // adjust dest ptrs for rotation
   236     dp1 += rowadd;
   237     dp2 += rowadd;
   238   }
   239 }
   240 
   241 // desktop, SL-A300 etc
   242 bool SDL_QWin::repaintRotation0(const QRect& rect) {
   243   if(my_image->width() == width()) {
   244     uchar *fb = (uchar*)my_painter->frameBuffer();
   245     uchar *buf = (uchar*)my_image->bits();
   246     if(rect == my_image->rect()) {
   247       SDL_memcpy(fb, buf, width()*height()*2);
   248     } else {
   249       int h = rect.height();
   250       int wd = rect.width()<<1;
   251       int fblineadd = my_painter->lineStep();
   252       int buflineadd = my_image->bytesPerLine();
   253       fb  += (rect.left()<<1) + rect.top() * my_painter->lineStep();
   254       buf += (rect.left()<<1) + rect.top() * my_image->bytesPerLine();
   255       while(h--) {
   256 	SDL_memcpy(fb, buf, wd);
   257 	fb += fblineadd;
   258 	buf += buflineadd;
   259       }
   260     }
   261   } else {
   262     return false; // FIXME: Landscape
   263   }
   264 #ifdef __i386__
   265   my_painter->fillRect( rect, QBrush( Qt::NoBrush ) );
   266 #endif
   267   return true;
   268 }
   269 
   270   
   271 // Sharp Zaurus SL-5500 etc 
   272 bool SDL_QWin::repaintRotation3(const QRect& rect) {
   273   if(my_image->width() == width()) {
   274     ushort *fb = (ushort*)my_painter->frameBuffer();
   275     ushort *buf = (ushort*)my_image->bits();
   276     gs_fastRotateBlit_3(fb, buf, rect);
   277   } else {
   278     // landscape mode
   279     if (screenRotation == SDL_QT_ROTATION_90) {
   280       uchar *fb = (uchar*)my_painter->frameBuffer();
   281       uchar *buf = (uchar*)my_image->bits();
   282       if(rect == my_image->rect()) {
   283 	SDL_memcpy(fb, buf, width()*height()*2);
   284       } else {
   285 	int h = rect.height();
   286 	int wd = rect.width()<<1;
   287 	int fblineadd = my_painter->lineStep();
   288 	int buflineadd = my_image->bytesPerLine();
   289 	fb  += (rect.left()<<1) + rect.top() * my_painter->lineStep();
   290 	buf += (rect.left()<<1) + rect.top() * my_image->bytesPerLine();
   291 	while(h--) {
   292 	  SDL_memcpy(fb, buf, wd);
   293 	  fb += fblineadd;
   294 	  buf += buflineadd;
   295 	}
   296       }
   297     } else if (screenRotation == SDL_QT_ROTATION_270) {
   298       int h = rect.height();
   299       int wd = rect.width();
   300       int fblineadd = my_painter->lineStep() - (rect.width() << 1);
   301       int buflineadd = my_image->bytesPerLine() - (rect.width() << 1);
   302       int w;
   303 
   304       uchar *fb = (uchar*)my_painter->frameBuffer();
   305       uchar *buf = (uchar*)my_image->bits();
   306         
   307       fb += ((my_painter->width() - (rect.top() + rect.height())) * 
   308 	     my_painter->lineStep()) + ((my_painter->height() - ((rect.left() + 
   309 								  rect.width()))) << 1);
   310 
   311       buf += my_image->bytesPerLine() * (rect.top() + rect.height()) -
   312 	(((my_image->width() - (rect.left() + rect.width())) << 1) + 2);
   313 
   314       while(h--) {
   315 	w = wd;
   316 	while(w--) *((unsigned short*)fb)++ = *((unsigned short*)buf)--;
   317 	fb += fblineadd;
   318 	buf -= buflineadd;
   319       }
   320     }
   321   }
   322   return true;
   323 }
   324 
   325 // ipaq 3800...
   326 bool SDL_QWin::repaintRotation1(const QRect& rect) {
   327   if(my_image->width() == width()) {
   328     ushort *fb = (ushort*)my_painter->frameBuffer();
   329     ushort *buf = (ushort*)my_image->bits();
   330     gs_fastRotateBlit_1(fb, buf, rect);
   331   } else {
   332     return false; // FIXME: landscape mode
   333   }
   334   return true;
   335 }
   336 
   337 void SDL_QWin::repaintRect(const QRect& rect) {
   338   if(!my_painter || !rect.width() || !rect.height()) {
   339     return;
   340   }
   341   
   342   if(QPixmap::defaultDepth() == 16) {
   343     switch(my_painter->transformOrientation()) {
   344     case 3:
   345       if(repaintRotation3(rect)) { return;  }
   346       break;
   347     case 1:
   348       if(repaintRotation1(rect)) { return;  }
   349       break;
   350     case 0:
   351       if(repaintRotation0(rect)) { return;  }
   352       break;
   353     }
   354   } 
   355   my_painter->drawImage(rect.topLeft(), *my_image, rect);
   356 }
   357 
   358 // This paints the current buffer to the screen, when desired. 
   359 void SDL_QWin::paintEvent(QPaintEvent *ev) {  
   360   if(my_image) {
   361     lockScreen(true);
   362     repaintRect(ev->rect());
   363     unlockScreen();
   364   }
   365 }  
   366 
   367 /* Function to translate a keyboard transition and queue the key event
   368  * This should probably be a table although this method isn't exactly
   369  * slow.
   370  */
   371 void SDL_QWin::QueueKey(QKeyEvent *e, int pressed)
   372 {  
   373   SDL_keysym keysym;
   374   int scancode = e->key();
   375   /* Set the keysym information */
   376   if(scancode >= 'A' && scancode <= 'Z') {
   377     // Qt sends uppercase, SDL wants lowercase
   378     keysym.sym = static_cast<SDLKey>(scancode + 32);
   379   } else if(scancode  >= 0x1000) {
   380     // Special keys
   381     switch(scancode) {
   382     case Qt::Key_Escape: scancode = SDLK_ESCAPE; break;
   383     case Qt::Key_Tab: scancode = SDLK_TAB; break;
   384     case Qt::Key_Backspace: scancode = SDLK_BACKSPACE; break;
   385     case Qt::Key_Return: scancode = SDLK_RETURN; break;
   386     case Qt::Key_Enter: scancode = SDLK_KP_ENTER; break;
   387     case Qt::Key_Insert: scancode = SDLK_INSERT; break;
   388     case Qt::Key_Delete: scancode = SDLK_DELETE; break;
   389     case Qt::Key_Pause: scancode = SDLK_PAUSE; break;
   390     case Qt::Key_Print: scancode = SDLK_PRINT; break;
   391     case Qt::Key_SysReq: scancode = SDLK_SYSREQ; break;
   392     case Qt::Key_Home: scancode = SDLK_HOME; break;
   393     case Qt::Key_End: scancode = SDLK_END; break;
   394     // We want the control keys to rotate with the screen
   395     case Qt::Key_Left: 
   396         if (screenRotation == SDL_QT_ROTATION_90) scancode = SDLK_UP;
   397         else if (screenRotation == SDL_QT_ROTATION_270) scancode = SDLK_DOWN;
   398         else scancode = SDLK_LEFT;
   399         break;
   400     case Qt::Key_Up: 
   401         if (screenRotation == SDL_QT_ROTATION_90) scancode = SDLK_RIGHT;
   402         else if (screenRotation == SDL_QT_ROTATION_270) scancode = SDLK_LEFT;
   403         else scancode = SDLK_UP;
   404         break;
   405     case Qt::Key_Right: 
   406         if (screenRotation == SDL_QT_ROTATION_90) scancode = SDLK_DOWN;
   407         else if (screenRotation == SDL_QT_ROTATION_270) scancode = SDLK_UP;
   408         else scancode = SDLK_RIGHT;
   409         break;
   410     case Qt::Key_Down:
   411         if (screenRotation == SDL_QT_ROTATION_90) scancode = SDLK_LEFT;
   412         else if (screenRotation == SDL_QT_ROTATION_270) scancode = SDLK_RIGHT;
   413         else scancode = SDLK_DOWN;
   414         break;
   415     case Qt::Key_Prior: scancode = SDLK_PAGEUP; break;
   416     case Qt::Key_Next: scancode = SDLK_PAGEDOWN; break;
   417     case Qt::Key_Shift: scancode = SDLK_LSHIFT; break;
   418     case Qt::Key_Control: scancode = SDLK_LCTRL; break;
   419     case Qt::Key_Meta: scancode = SDLK_LMETA; break;
   420     case Qt::Key_Alt: scancode = SDLK_LALT; break;
   421     case Qt::Key_CapsLock: scancode = SDLK_CAPSLOCK; break;
   422     case Qt::Key_NumLock: scancode = SDLK_NUMLOCK; break;
   423     case Qt::Key_ScrollLock: scancode = SDLK_SCROLLOCK; break;
   424     case Qt::Key_F1: scancode = SDLK_F1; break;
   425     case Qt::Key_F2: scancode = SDLK_F2; break;
   426     case Qt::Key_F3: scancode = SDLK_F3; break;
   427     case Qt::Key_F4: scancode = SDLK_F4; break;
   428     case Qt::Key_F5: scancode = SDLK_F5; break;
   429     case Qt::Key_F6: scancode = SDLK_F6; break;
   430     case Qt::Key_F7: scancode = SDLK_F7; break;
   431     case Qt::Key_F8: scancode = SDLK_F8; break;
   432     case Qt::Key_F9: scancode = SDLK_F9; break;
   433     case Qt::Key_F10: scancode = SDLK_F10; break;
   434     case Qt::Key_F11: scancode = SDLK_F11; break;
   435     case Qt::Key_F12: scancode = SDLK_F12; break;
   436     case Qt::Key_F13: scancode = SDLK_F13; break;
   437     case Qt::Key_F14: scancode = SDLK_F14; break;
   438     case Qt::Key_F15: scancode = SDLK_F15; break;
   439     case Qt::Key_Super_L: scancode = SDLK_LSUPER; break;
   440     case Qt::Key_Super_R: scancode = SDLK_RSUPER; break;
   441     case Qt::Key_Menu: scancode = SDLK_MENU; break;
   442     case Qt::Key_Help: scancode = SDLK_HELP; break;
   443 
   444     case Qt::Key_F33:
   445       // FIXME: This is a hack to enable the OK key on
   446       // Zaurii devices. SDLK_RETURN is a suitable key to use
   447       // since it often is used as such.
   448       //     david@hedbor.org
   449       scancode = SDLK_RETURN;
   450       break;
   451     default:
   452       scancode = SDLK_UNKNOWN;
   453       break;
   454     }
   455     keysym.sym = static_cast<SDLKey>(scancode);    
   456   } else {
   457     keysym.sym = static_cast<SDLKey>(scancode);    
   458   }
   459   keysym.scancode = scancode;
   460   keysym.mod = KMOD_NONE;
   461   ButtonState st = e->state();
   462   if( (st & ShiftButton) )   { keysym.mod = static_cast<SDLMod>(keysym.mod | KMOD_LSHIFT);  }
   463   if( (st & ControlButton) ) { keysym.mod = static_cast<SDLMod>(keysym.mod | KMOD_LCTRL);  }
   464   if( (st & AltButton) )     { keysym.mod = static_cast<SDLMod>(keysym.mod | KMOD_LALT);  }
   465   if ( SDL_TranslateUNICODE ) {
   466     QChar qchar = e->text()[0];
   467     keysym.unicode = qchar.unicode();
   468   } else {
   469     keysym.unicode = 0;
   470   }
   471 
   472   /* NUMLOCK and CAPSLOCK are implemented as double-presses in reality */
   473   //	if ( (keysym.sym == SDLK_NUMLOCK) || (keysym.sym == SDLK_CAPSLOCK) ) {
   474   //		pressed = 1;
   475   //	}
   476 
   477   /* Queue the key event */
   478   if ( pressed ) {
   479     SDL_PrivateKeyboard(SDL_PRESSED, &keysym);
   480   } else {
   481     SDL_PrivateKeyboard(SDL_RELEASED, &keysym);
   482   }
   483 }
   484 
   485 void SDL_QWin::setFullscreen(bool fs_on) {
   486   my_has_fullscreen = false;
   487   enableFullscreen();
   488 }
   489 
   490 void SDL_QWin::enableFullscreen() {
   491   // Make sure size is correct
   492   if(!my_has_fullscreen) {
   493     setFixedSize(qApp->desktop()->size());
   494     // This call is needed because showFullScreen won't work
   495     // correctly if the widget already considers itself to be fullscreen.
   496     showNormal();
   497     // This is needed because showNormal() forcefully changes the window
   498     // style to WSTyle_TopLevel.
   499     setWFlags(WStyle_Customize | WStyle_NoBorder);
   500     // Enable fullscreen.
   501     showFullScreen();
   502     my_has_fullscreen = true;
   503   }
   504 }
   505 
   506 bool SDL_QWin::lockScreen(bool force) {
   507   if(!my_painter) {
   508     if(force || (isVisible() && isActiveWindow())) {
   509       my_painter = new QDirectPainter(this);
   510     } else {
   511       return false;
   512     }
   513   }
   514   my_locked++; // Increate lock refcount
   515   return true;
   516 }
   517 
   518 void SDL_QWin::unlockScreen() {
   519   if(my_locked > 0) {
   520     my_locked--; // decrease lock refcount;
   521   }
   522   if(!my_locked && my_painter) {
   523     my_painter->end();
   524     delete my_painter;
   525     my_painter = 0;
   526   }
   527 }