symbian-qemu-0.9.1-12/libsdl-trunk/src/video/qtopia/SDL_QWin.cc
changeset 1 2fb8b9db1c86
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/libsdl-trunk/src/video/qtopia/SDL_QWin.cc	Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,527 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997-2006 Sam Lantinga
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+    Sam Lantinga
+    slouken@libsdl.org
+*/
+#include "SDL_config.h"
+
+#include "SDL_QWin.h"
+#include <qapplication.h>
+#include <qdirectpainter_qws.h>
+
+screenRotationT screenRotation = SDL_QT_NO_ROTATION;
+
+SDL_QWin::SDL_QWin(const QSize& size)
+  : QWidget(0, "SDL_main"), my_painter(0), my_image(0),
+    my_inhibit_resize(false), my_mouse_pos(-1,-1), my_flags(0),
+    my_has_fullscreen(false), my_locked(0)
+{
+  setBackgroundMode(NoBackground);
+}
+
+SDL_QWin::~SDL_QWin() {
+  // Nothing to do yet.
+  if(my_image) {
+    delete my_image;
+  }
+}
+
+void SDL_QWin::setImage(QImage *image) {
+  if ( my_image ) {
+    delete my_image;
+  }
+  my_image = image;
+  //  setFixedSize(image->size());
+}
+
+void SDL_QWin::resizeEvent(QResizeEvent *e) {
+  if(size() != qApp->desktop()->size()) {
+    // Widget is not the correct size, so do the fullscreen magic
+    my_has_fullscreen = false;
+    enableFullscreen();
+  }
+  if(my_inhibit_resize) {
+    my_inhibit_resize = false;
+  } else {
+    SDL_PrivateResize(e->size().width(), e->size().height());
+  }
+}
+
+void SDL_QWin::focusInEvent(QFocusEvent *) {
+  // Always do it here, no matter the size.
+  enableFullscreen();
+  SDL_PrivateAppActive(true, SDL_APPINPUTFOCUS);
+}
+
+void SDL_QWin::focusOutEvent(QFocusEvent *) {
+  my_has_fullscreen = false;
+  SDL_PrivateAppActive(false, SDL_APPINPUTFOCUS);
+}
+
+void SDL_QWin::closeEvent(QCloseEvent *e) {
+  SDL_PrivateQuit();
+  e->ignore();
+}
+
+void SDL_QWin::setMousePos(const QPoint &pos) {
+  if(my_image->width() == height()) {
+    if (screenRotation == SDL_QT_ROTATION_90)
+      my_mouse_pos = QPoint(height()-pos.y(), pos.x());
+    else if (screenRotation == SDL_QT_ROTATION_270)
+      my_mouse_pos = QPoint(pos.y(), width()-pos.x());
+  } else {
+    my_mouse_pos = pos;
+  }
+}
+
+void SDL_QWin::mouseMoveEvent(QMouseEvent *e) {
+  Qt::ButtonState button = e->button();
+  int sdlstate = 0;
+  if( (button & Qt::LeftButton)) {
+    sdlstate |= SDL_BUTTON_LMASK;
+  }
+  if( (button & Qt::RightButton)) {
+    sdlstate |= SDL_BUTTON_RMASK;
+  }
+  if( (button & Qt::MidButton)) {
+    sdlstate |= SDL_BUTTON_MMASK;
+  }
+  setMousePos(e->pos());
+  SDL_PrivateMouseMotion(sdlstate, 0, my_mouse_pos.x(), my_mouse_pos.y());
+}
+
+void SDL_QWin::mousePressEvent(QMouseEvent *e) {
+  mouseMoveEvent(e);
+  Qt::ButtonState button = e->button();
+  SDL_PrivateMouseButton(SDL_PRESSED,
+			 (button & Qt::LeftButton) ? 1 :
+			 ((button & Qt::RightButton) ? 2 : 3),
+			 my_mouse_pos.x(), my_mouse_pos.y());
+}
+
+void SDL_QWin::mouseReleaseEvent(QMouseEvent *e) {
+  setMousePos(e->pos());
+  Qt::ButtonState button = e->button();
+  SDL_PrivateMouseButton(SDL_RELEASED,
+			 (button & Qt::LeftButton) ? 1 :
+			 ((button & Qt::RightButton) ? 2 : 3),
+			 my_mouse_pos.x(), my_mouse_pos.y());
+  my_mouse_pos = QPoint(-1, -1);
+}
+
+static inline void
+gs_fastRotateBlit_3 ( unsigned short *fb,
+		      unsigned short *bits,
+		      const QRect& rect )
+{
+  // FIXME: this only works correctly for 240x320 displays
+  int startx, starty;
+  int width, height;
+  
+  startx = rect.left() >> 1;
+  starty = rect.top() >> 1;
+  width  = ((rect.right() - rect.left()) >> 1) + 2;
+  height = ((rect.bottom() - rect.top()) >> 1) + 2;
+
+  if((startx+width) > 120) {
+    width = 120 - startx; // avoid horizontal overflow
+  }
+  if((starty+height) > 160) { 
+    height = 160 - starty; // avoid vertical overflow
+  }
+
+  ulong *sp1, *sp2, *dp1, *dp2;
+  ulong stop, sbot, dtop, dbot;    
+  
+  sp1 = (ulong*)bits + startx + starty*240;
+  sp2 = sp1 + 120;
+  dp1 = (ulong *)fb + (159 - starty) + startx*320;
+  dp2 = dp1 + 160;
+  int rowadd = (-320*width) - 1;
+  int rowadd2 = 240 - width;
+  // transfer in cells of 2x2 pixels in words
+  for (int y=0; y<height; y++) {
+    for (int x=0; x<width; x++) {
+      // read source pixels
+      stop = *sp1;
+      sbot = *sp2;
+      // rotate pixels
+      dtop = (sbot & 0xffff) + ((stop & 0xffff)<<16);
+      dbot = ((sbot & 0xffff0000)>>16) + (stop & 0xffff0000);
+      // write to framebuffer
+      *dp1 = dtop;
+      *dp2 = dbot;
+      // update source ptrs
+      sp1++; sp2++;
+      // update dest ptrs - 2 pix at a time
+      dp1 += 320;
+      dp2 += 320;
+    }
+    // adjust src ptrs - skip a row as we work in pairs
+    sp1 += rowadd2;
+    sp2 += rowadd2;
+    // adjust dest ptrs for rotation
+    dp1 += rowadd;
+    dp2 += rowadd;
+  }
+}
+
+static inline void
+gs_fastRotateBlit_1 ( unsigned short *fb,
+		      unsigned short *bits,
+		      const QRect& rect ) {
+  // FIXME: this only works correctly for 240x320 displays
+  int startx, starty;
+  int width, height;
+
+  startx = rect.left() >> 1;
+  starty = rect.top() >> 1;
+  width  = ((rect.right() - rect.left()) >> 1) + 2;
+  height = ((rect.bottom() - rect.top()) >> 1) + 2;
+
+  if((startx+width) > 120) {
+    width = 120 - startx; // avoid horizontal overflow
+  }
+  if((starty+height) > 160) { 
+    height = 160 - starty; // avoid vertical overflow
+  }
+
+  ulong *sp1, *sp2, *dp1, *dp2;
+  ulong stop, sbot, dtop, dbot;    
+  fb += 320*239; // Move "fb" to top left corner
+  sp1 = (ulong*)bits + startx + starty*240;
+  sp2 = sp1 + 120;
+  dp1 = (ulong*)fb - startx * 320 - starty;
+  dp2 = dp1 - 160;
+  int rowadd = (320*width) + 1;
+  int rowadd2 = 240 - width;
+  // transfer in cells of 2x2 pixels in words
+  for (int y=0; y<height; y++) {
+    for (int x=0; x<width; x++) {
+      // read
+      stop = *sp1;
+      sbot = *sp2;
+      // rotate
+      dtop = (stop & 0xffff) + ((sbot & 0xffff)<<16);
+      dbot = ((stop & 0xffff0000)>>16) + (sbot & 0xffff0000);
+      // write
+      *dp1 = dtop;
+      *dp2 = dbot;
+      // update source ptrs
+      sp1++; sp2++;
+      // update dest ptrs - 2 pix at a time
+      dp1 -= 320;
+      dp2 -= 320;
+    }
+    // adjust src ptrs - skip a row as we work in pairs
+    sp1 += rowadd2;
+    sp2 += rowadd2;
+    // adjust dest ptrs for rotation
+    dp1 += rowadd;
+    dp2 += rowadd;
+  }
+}
+
+// desktop, SL-A300 etc
+bool SDL_QWin::repaintRotation0(const QRect& rect) {
+  if(my_image->width() == width()) {
+    uchar *fb = (uchar*)my_painter->frameBuffer();
+    uchar *buf = (uchar*)my_image->bits();
+    if(rect == my_image->rect()) {
+      SDL_memcpy(fb, buf, width()*height()*2);
+    } else {
+      int h = rect.height();
+      int wd = rect.width()<<1;
+      int fblineadd = my_painter->lineStep();
+      int buflineadd = my_image->bytesPerLine();
+      fb  += (rect.left()<<1) + rect.top() * my_painter->lineStep();
+      buf += (rect.left()<<1) + rect.top() * my_image->bytesPerLine();
+      while(h--) {
+	SDL_memcpy(fb, buf, wd);
+	fb += fblineadd;
+	buf += buflineadd;
+      }
+    }
+  } else {
+    return false; // FIXME: Landscape
+  }
+#ifdef __i386__
+  my_painter->fillRect( rect, QBrush( Qt::NoBrush ) );
+#endif
+  return true;
+}
+
+  
+// Sharp Zaurus SL-5500 etc 
+bool SDL_QWin::repaintRotation3(const QRect& rect) {
+  if(my_image->width() == width()) {
+    ushort *fb = (ushort*)my_painter->frameBuffer();
+    ushort *buf = (ushort*)my_image->bits();
+    gs_fastRotateBlit_3(fb, buf, rect);
+  } else {
+    // landscape mode
+    if (screenRotation == SDL_QT_ROTATION_90) {
+      uchar *fb = (uchar*)my_painter->frameBuffer();
+      uchar *buf = (uchar*)my_image->bits();
+      if(rect == my_image->rect()) {
+	SDL_memcpy(fb, buf, width()*height()*2);
+      } else {
+	int h = rect.height();
+	int wd = rect.width()<<1;
+	int fblineadd = my_painter->lineStep();
+	int buflineadd = my_image->bytesPerLine();
+	fb  += (rect.left()<<1) + rect.top() * my_painter->lineStep();
+	buf += (rect.left()<<1) + rect.top() * my_image->bytesPerLine();
+	while(h--) {
+	  SDL_memcpy(fb, buf, wd);
+	  fb += fblineadd;
+	  buf += buflineadd;
+	}
+      }
+    } else if (screenRotation == SDL_QT_ROTATION_270) {
+      int h = rect.height();
+      int wd = rect.width();
+      int fblineadd = my_painter->lineStep() - (rect.width() << 1);
+      int buflineadd = my_image->bytesPerLine() - (rect.width() << 1);
+      int w;
+
+      uchar *fb = (uchar*)my_painter->frameBuffer();
+      uchar *buf = (uchar*)my_image->bits();
+        
+      fb += ((my_painter->width() - (rect.top() + rect.height())) * 
+	     my_painter->lineStep()) + ((my_painter->height() - ((rect.left() + 
+								  rect.width()))) << 1);
+
+      buf += my_image->bytesPerLine() * (rect.top() + rect.height()) -
+	(((my_image->width() - (rect.left() + rect.width())) << 1) + 2);
+
+      while(h--) {
+	w = wd;
+	while(w--) *((unsigned short*)fb)++ = *((unsigned short*)buf)--;
+	fb += fblineadd;
+	buf -= buflineadd;
+      }
+    }
+  }
+  return true;
+}
+
+// ipaq 3800...
+bool SDL_QWin::repaintRotation1(const QRect& rect) {
+  if(my_image->width() == width()) {
+    ushort *fb = (ushort*)my_painter->frameBuffer();
+    ushort *buf = (ushort*)my_image->bits();
+    gs_fastRotateBlit_1(fb, buf, rect);
+  } else {
+    return false; // FIXME: landscape mode
+  }
+  return true;
+}
+
+void SDL_QWin::repaintRect(const QRect& rect) {
+  if(!my_painter || !rect.width() || !rect.height()) {
+    return;
+  }
+  
+  if(QPixmap::defaultDepth() == 16) {
+    switch(my_painter->transformOrientation()) {
+    case 3:
+      if(repaintRotation3(rect)) { return;  }
+      break;
+    case 1:
+      if(repaintRotation1(rect)) { return;  }
+      break;
+    case 0:
+      if(repaintRotation0(rect)) { return;  }
+      break;
+    }
+  } 
+  my_painter->drawImage(rect.topLeft(), *my_image, rect);
+}
+
+// This paints the current buffer to the screen, when desired. 
+void SDL_QWin::paintEvent(QPaintEvent *ev) {  
+  if(my_image) {
+    lockScreen(true);
+    repaintRect(ev->rect());
+    unlockScreen();
+  }
+}  
+
+/* Function to translate a keyboard transition and queue the key event
+ * This should probably be a table although this method isn't exactly
+ * slow.
+ */
+void SDL_QWin::QueueKey(QKeyEvent *e, int pressed)
+{  
+  SDL_keysym keysym;
+  int scancode = e->key();
+  /* Set the keysym information */
+  if(scancode >= 'A' && scancode <= 'Z') {
+    // Qt sends uppercase, SDL wants lowercase
+    keysym.sym = static_cast<SDLKey>(scancode + 32);
+  } else if(scancode  >= 0x1000) {
+    // Special keys
+    switch(scancode) {
+    case Qt::Key_Escape: scancode = SDLK_ESCAPE; break;
+    case Qt::Key_Tab: scancode = SDLK_TAB; break;
+    case Qt::Key_Backspace: scancode = SDLK_BACKSPACE; break;
+    case Qt::Key_Return: scancode = SDLK_RETURN; break;
+    case Qt::Key_Enter: scancode = SDLK_KP_ENTER; break;
+    case Qt::Key_Insert: scancode = SDLK_INSERT; break;
+    case Qt::Key_Delete: scancode = SDLK_DELETE; break;
+    case Qt::Key_Pause: scancode = SDLK_PAUSE; break;
+    case Qt::Key_Print: scancode = SDLK_PRINT; break;
+    case Qt::Key_SysReq: scancode = SDLK_SYSREQ; break;
+    case Qt::Key_Home: scancode = SDLK_HOME; break;
+    case Qt::Key_End: scancode = SDLK_END; break;
+    // We want the control keys to rotate with the screen
+    case Qt::Key_Left: 
+        if (screenRotation == SDL_QT_ROTATION_90) scancode = SDLK_UP;
+        else if (screenRotation == SDL_QT_ROTATION_270) scancode = SDLK_DOWN;
+        else scancode = SDLK_LEFT;
+        break;
+    case Qt::Key_Up: 
+        if (screenRotation == SDL_QT_ROTATION_90) scancode = SDLK_RIGHT;
+        else if (screenRotation == SDL_QT_ROTATION_270) scancode = SDLK_LEFT;
+        else scancode = SDLK_UP;
+        break;
+    case Qt::Key_Right: 
+        if (screenRotation == SDL_QT_ROTATION_90) scancode = SDLK_DOWN;
+        else if (screenRotation == SDL_QT_ROTATION_270) scancode = SDLK_UP;
+        else scancode = SDLK_RIGHT;
+        break;
+    case Qt::Key_Down:
+        if (screenRotation == SDL_QT_ROTATION_90) scancode = SDLK_LEFT;
+        else if (screenRotation == SDL_QT_ROTATION_270) scancode = SDLK_RIGHT;
+        else scancode = SDLK_DOWN;
+        break;
+    case Qt::Key_Prior: scancode = SDLK_PAGEUP; break;
+    case Qt::Key_Next: scancode = SDLK_PAGEDOWN; break;
+    case Qt::Key_Shift: scancode = SDLK_LSHIFT; break;
+    case Qt::Key_Control: scancode = SDLK_LCTRL; break;
+    case Qt::Key_Meta: scancode = SDLK_LMETA; break;
+    case Qt::Key_Alt: scancode = SDLK_LALT; break;
+    case Qt::Key_CapsLock: scancode = SDLK_CAPSLOCK; break;
+    case Qt::Key_NumLock: scancode = SDLK_NUMLOCK; break;
+    case Qt::Key_ScrollLock: scancode = SDLK_SCROLLOCK; break;
+    case Qt::Key_F1: scancode = SDLK_F1; break;
+    case Qt::Key_F2: scancode = SDLK_F2; break;
+    case Qt::Key_F3: scancode = SDLK_F3; break;
+    case Qt::Key_F4: scancode = SDLK_F4; break;
+    case Qt::Key_F5: scancode = SDLK_F5; break;
+    case Qt::Key_F6: scancode = SDLK_F6; break;
+    case Qt::Key_F7: scancode = SDLK_F7; break;
+    case Qt::Key_F8: scancode = SDLK_F8; break;
+    case Qt::Key_F9: scancode = SDLK_F9; break;
+    case Qt::Key_F10: scancode = SDLK_F10; break;
+    case Qt::Key_F11: scancode = SDLK_F11; break;
+    case Qt::Key_F12: scancode = SDLK_F12; break;
+    case Qt::Key_F13: scancode = SDLK_F13; break;
+    case Qt::Key_F14: scancode = SDLK_F14; break;
+    case Qt::Key_F15: scancode = SDLK_F15; break;
+    case Qt::Key_Super_L: scancode = SDLK_LSUPER; break;
+    case Qt::Key_Super_R: scancode = SDLK_RSUPER; break;
+    case Qt::Key_Menu: scancode = SDLK_MENU; break;
+    case Qt::Key_Help: scancode = SDLK_HELP; break;
+
+    case Qt::Key_F33:
+      // FIXME: This is a hack to enable the OK key on
+      // Zaurii devices. SDLK_RETURN is a suitable key to use
+      // since it often is used as such.
+      //     david@hedbor.org
+      scancode = SDLK_RETURN;
+      break;
+    default:
+      scancode = SDLK_UNKNOWN;
+      break;
+    }
+    keysym.sym = static_cast<SDLKey>(scancode);    
+  } else {
+    keysym.sym = static_cast<SDLKey>(scancode);    
+  }
+  keysym.scancode = scancode;
+  keysym.mod = KMOD_NONE;
+  ButtonState st = e->state();
+  if( (st & ShiftButton) )   { keysym.mod = static_cast<SDLMod>(keysym.mod | KMOD_LSHIFT);  }
+  if( (st & ControlButton) ) { keysym.mod = static_cast<SDLMod>(keysym.mod | KMOD_LCTRL);  }
+  if( (st & AltButton) )     { keysym.mod = static_cast<SDLMod>(keysym.mod | KMOD_LALT);  }
+  if ( SDL_TranslateUNICODE ) {
+    QChar qchar = e->text()[0];
+    keysym.unicode = qchar.unicode();
+  } else {
+    keysym.unicode = 0;
+  }
+
+  /* NUMLOCK and CAPSLOCK are implemented as double-presses in reality */
+  //	if ( (keysym.sym == SDLK_NUMLOCK) || (keysym.sym == SDLK_CAPSLOCK) ) {
+  //		pressed = 1;
+  //	}
+
+  /* Queue the key event */
+  if ( pressed ) {
+    SDL_PrivateKeyboard(SDL_PRESSED, &keysym);
+  } else {
+    SDL_PrivateKeyboard(SDL_RELEASED, &keysym);
+  }
+}
+
+void SDL_QWin::setFullscreen(bool fs_on) {
+  my_has_fullscreen = false;
+  enableFullscreen();
+}
+
+void SDL_QWin::enableFullscreen() {
+  // Make sure size is correct
+  if(!my_has_fullscreen) {
+    setFixedSize(qApp->desktop()->size());
+    // This call is needed because showFullScreen won't work
+    // correctly if the widget already considers itself to be fullscreen.
+    showNormal();
+    // This is needed because showNormal() forcefully changes the window
+    // style to WSTyle_TopLevel.
+    setWFlags(WStyle_Customize | WStyle_NoBorder);
+    // Enable fullscreen.
+    showFullScreen();
+    my_has_fullscreen = true;
+  }
+}
+
+bool SDL_QWin::lockScreen(bool force) {
+  if(!my_painter) {
+    if(force || (isVisible() && isActiveWindow())) {
+      my_painter = new QDirectPainter(this);
+    } else {
+      return false;
+    }
+  }
+  my_locked++; // Increate lock refcount
+  return true;
+}
+
+void SDL_QWin::unlockScreen() {
+  if(my_locked > 0) {
+    my_locked--; // decrease lock refcount;
+  }
+  if(!my_locked && my_painter) {
+    my_painter->end();
+    delete my_painter;
+    my_painter = 0;
+  }
+}