SDL_QWin.cc
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2012 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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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
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Lesser General Public License for more details.
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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
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Sam Lantinga
slouken@libsdl.org
*/
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#include "SDL_config.h"
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#include "SDL_QWin.h"
#include <qapplication.h>
#include <qdirectpainter_qws.h>
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screenRotationT screenRotation = SDL_QT_NO_ROTATION;
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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();
}
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void SDL_QWin::setMousePos(const QPoint &pos) {
if(my_image->width() == height()) {
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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());
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} else {
my_mouse_pos = pos;
}
}
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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;
}
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setMousePos(e->pos());
SDL_PrivateMouseMotion(sdlstate, 0, my_mouse_pos.x(), my_mouse_pos.y());
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}
void SDL_QWin::mousePressEvent(QMouseEvent *e) {
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mouseMoveEvent(e);
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Qt::ButtonState button = e->button();
SDL_PrivateMouseButton(SDL_PRESSED,
(button & Qt::LeftButton) ? 1 :
((button & Qt::RightButton) ? 2 : 3),
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my_mouse_pos.x(), my_mouse_pos.y());
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}
void SDL_QWin::mouseReleaseEvent(QMouseEvent *e) {
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setMousePos(e->pos());
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Qt::ButtonState button = e->button();
SDL_PrivateMouseButton(SDL_RELEASED,
(button & Qt::LeftButton) ? 1 :
((button & Qt::RightButton) ? 2 : 3),
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my_mouse_pos.x(), my_mouse_pos.y());
my_mouse_pos = QPoint(-1, -1);
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static inline void
gs_fastRotateBlit_3 ( unsigned short *fb,
unsigned short *bits,
const QRect& rect )
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// FIXME: this only works correctly for 240x320 displays
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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;
}
}
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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
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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()) {
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SDL_memcpy(fb, buf, width()*height()*2);
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} else {
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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--) {
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SDL_memcpy(fb, buf, wd);
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fb += fblineadd;
buf += buflineadd;
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}
}
} else {
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return false; // FIXME: Landscape
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#ifdef __i386__
my_painter->fillRect( rect, QBrush( Qt::NoBrush ) );
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#endif
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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()) {
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SDL_memcpy(fb, buf, width()*height()*2);
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} 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--) {
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SDL_memcpy(fb, buf, wd);
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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);
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}
// This paints the current buffer to the screen, when desired.
void SDL_QWin::paintEvent(QPaintEvent *ev) {
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if(my_image) {
lockScreen(true);
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repaintRect(ev->rect());
unlockScreen();
}
}
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/* Function to translate a keyboard transition and queue the key event
* This should probably be a table although this method isn't exactly
* slow.
*/
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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;
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// 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;
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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;
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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;
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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;
}
}
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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;
}
}