int main( int argc, char const * const argv[] )
{
if( 2 <= argc )
{
image_t image ;
if( imageFromFile( argv[1], image ) )
{
unsigned x = 0 ;
if( 3 <= argc )
x = strtoul( argv[2], 0, 0 );
unsigned y = 0 ;
if( 4 <= argc )
y = strtoul( argv[3], 0, 0 );
#ifdef __DAVINCIFB__
#else
getFB().render( x, y,
image.width_, image.height_,
(unsigned short *)image.pixData_ );
#endif
}
else
perror( argv[1] );
}
else
fprintf( stderr, "Usage: imgFile fileName [x [y]]\n" );
return 0 ;
}
void uiState_t :: setState
( input_e input,
bool setNotCleared )
{
unsigned char const imgBits = lock_e | gateOpen_e ;
unsigned char const oldState = state_ ;
if( setNotCleared )
state_ |= input ;
else
state_ &= ~input ;
if( ( oldState & imgBits ) != ( state_ & imgBits ) )
{
image_t const &image = *images_[state_ & imgBits];
if( image.pixData_ )
getFB().render( 0, 0, image.width_, image.height_, (unsigned short *)image.pixData_ );
if( state_ & touch_e )
{
invertScreen();
}
}
else if( ( state_ & touch_e ) != ( oldState & touch_e ) )
{
invertScreen();
}
}
static void invertScreen( void )
{
fbDevice_t &fb = getFB();
unsigned long *fbMem = (unsigned long *)fb.getMem();
unsigned long longs = fb.getMemSize()/sizeof(fbMem[0]);
while( 0 < longs-- )
{
*fbMem = ~(*fbMem);
fbMem++ ;
}
}
jsMouse_t::jsMouse_t( char const *devName )
: inputPoll_t( pollHandlers_, devName )
, curBox_( 0 )
, down_( false )
, wheel_( 0 )
{
if( !isOpen() ){
perror( devName );
return ;
}
printf( "%s\n", __PRETTY_FUNCTION__ );
assert( cursor_ );
fbDevice_t &fb = getFB();
cursor_->setPos(fb.getWidth()/2, fb.getWidth()/2);
cursor_->activate();
}
int main()
{
// Initialize services
srvInit();
aptInit();
hidInit(NULL);
gfxInitDefault();
// Main loop
while (aptMainLoop())
{
//As nop90 suggested
getFB();
//Gets input (keys and touch)
getInput();
//Prints the GUI
printGUI();
//Do stuff
app();
//Exit code
if (input & KEY_START) break;
// Flush and swap framebuffers
gfxFlushBuffers();
gfxSwapBuffers();
//Wait for VBlank
gspWaitForVBlank();
}
// Exit services
gfxExit();
hidExit();
aptExit();
srvExit();
return 0;
}
int main( int argc, char const * const argv[] )
{
printf( "Hello, %s\n", argv[0] );
fbDevice_t &fb = getFB();
if( 3 < argc )
{
unsigned long offset = strtoul( argv[1],0,0 );
unsigned long numPixels = strtoul( argv[2],0,0 );
unsigned short pixValue = strtoul(argv[3],0,0);
unsigned short *vidMem = (unsigned short *)
((unsigned long)fb.getMem()+offset);
for( unsigned i = 0 ; i < numPixels ; i++ )
*vidMem++ = pixValue ;
}
else
fprintf( stderr, "Usage: videoSet offset(bytes) pixelCount value\n" );
return 0 ;
}
static JSBool
jsDisableMouse( JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval )
{
*rval = JSVAL_FALSE ;
#if defined(KERNEL_FB_SM501) && (KERNEL_FB_SM501 == 1)
fbDevice_t &fb = getFB();
unsigned long reg = SMIPCURSOR_ADDR ;
int res = ioctl( fb.getFd(), SM501_READREG, ® );
if( 0 == res ){
struct reg_and_value rv ;
rv.reg_ = SMIPCURSOR_ADDR ;
rv.value_ = reg & ~0x80000000 ;
res = ioctl( fb.getFd(), SM501_WRITEREG, &rv );
if( 0 == res ){
*rval = true ;
}
else
JS_ReportError( cx, "saving SM-501 CURSORADDR\n" );
}
else
JS_ReportError( cx, "reading SM-501 CURSORADDR\n" );
#else
if( 0 != cursor_ ){
delete cursor_ ;
cursor_ = 0 ;
}
if( 0 != mouse_ ){
delete mouse_ ;
mouse_ = 0 ;
printf( "%s:deleted mouse\n", __PRETTY_FUNCTION__ );
}
*rval = JSVAL_TRUE ;
#endif
return JS_TRUE ;
}
int main( int argc, char const * const argv[] )
{
fbDevice_t &fb = getFB();
image_t img ;
memset( &img, 0, sizeof( img ) );
if( 1 < argc )
{
if( imageFromFile( argv[1], img ) )
printf( "%s: %u x %u pixels\n", argv[1], img.width_, img.height_ );
else
perror( argv[1] );
}
else
{
img.pixData_ = fb.getRow(0);
img.width_ = fb.getWidth();
img.height_ = fb.getHeight();
img.alpha_ = 0 ;
}
if( img.pixData_ )
{
dither_t dither( (unsigned short const *)img.pixData_, img.width_, img.height_ );
unsigned bpl = bitmap_t::bytesPerRow(img.width_);
unsigned char * const bitmapBytes = new unsigned char[bpl*img.height_];
bitmap_t bmp( bitmapBytes, img.width_, img.height_ );
for( unsigned row = 0 ; row < img.height_ ; row++ )
{
unsigned char mask = 0x80 ;
unsigned char *outRow = bitmapBytes+row*bpl ;
for( unsigned col = 0 ; col < img.width_ ; col++ )
{
if( dither.isBlack(col,row) )
*outRow |= mask ;
else
*outRow &= ~mask ;
mask >>= 1 ;
if( 0 == mask ){
mask = 0x80 ;
outRow++ ;
}
} // each column
} // each row
void const *outData ;
unsigned outSize ;
if( bitmapToPNG( bmp, outData, outSize ) )
{
printf( "%u bytes of output\n", outSize );
char const *outFile = ( 2 < argc ) ? argv[2] : "/tmp/img.png" ;
FILE *fOut = fopen( outFile, "wb" );
if( fOut )
{
fwrite( outData, 1, outSize, fOut );
fclose( fOut );
printf( "%u bytes written to %s\n", outSize, outFile );
}
else
perror( outFile );
free((void *)outData);
}
else
printf( "Error converting bitmap\n" );
}
void jsMouse_t::onData( struct input_event const &event )
{
assert( cursor_ );
cursor_->getPos(x_,y_);
switch( event.type ){
case EV_SYN:
cursor_->setPos(x_,y_);
if( down_ ){
press();
}
if( 0 != wheel_ ){
printf( "wheel motion: %d\n", wheel_ );
if( JSVAL_VOID != onWheelCode_ ){
jsval args[2] = {
INT_TO_JSVAL(wheel_)
, JSVAL_NULL
};
printf( "call handler here\n" );
executeCode(JS_GetGlobalObject(execContext_),onWheelCode_, __func__, 1,args);
} else
printf( "No wheel handler\n" );
wheel_ = 0 ;
}
break;
case EV_REL: {
if( (REL_X==event.code) || (REL_Y==event.code) ){
fbDevice_t &fb = getFB();
int value = (int)event.value ;
int pos = (int)( (REL_X == event.code) ? x_ : y_ );
int max = (int)( (REL_X == event.code) ? fb.getWidth() : fb.getHeight() ) - 1 ;
pos += value ;
if( 0 > pos )
pos = 0 ;
else if( max < pos ){
pos = max ;
}
if( REL_X == event.code )
x_ = pos ;
else
y_ = pos ;
cursor_->setPos(x_,y_);
} else if(REL_WHEEL==event.code){
wheel_ += (int)event.value ;
} else
printf( "Unknown rel value, code 0x%x, value 0x%x\n", event.code, event.value );
break;
}
case EV_KEY: {
int down = event.value ;
int left = ( event.code == LMOUSEBUTTON );
#if defined(KERNEL_FB_DAVINCI) && (KERNEL_FB_DAVINCI == 1)
if( down ){
cursor_->setWidth(SMALL);
cursor_->setHeight(SMALL);
}
else {
cursor_->setWidth(BIG);
cursor_->setHeight(BIG);
}
#endif
if( left && ( down_ != down ) ){
if( down ){
press();
}
else {
release();
}
down_ = down ;
} // left button state changed
break;
}
default:
inputPoll_t::onData(event);
}
}
sm501alpha_t::sm501alpha_t(
mode_t mode,
unsigned x,
unsigned y,
unsigned w,
unsigned h )
: mode_( mode )
, fd_( open( "/dev/" SM501ALPHA_CLASS, O_RDWR ) )
, pos_( makeRect(0,0,0,0) )
, ram_( 0 )
, ramOffs_( 0 )
{
if( isOpen() ){
fcntl( fd_, F_SETFD, FD_CLOEXEC);
fbDevice_t &fb = getFB();
if( 0 == w ){
w = fb.getWidth();
if( 0 != x )
w -= x ;
}
if( 0 == h ){
h = fb.getHeight();
if( 0 != y )
h -= y ;
}
struct sm501_alphaPlane_t plane ;
plane.xLeft_ = pos_.xLeft_ = x ;
plane.yTop_ = pos_.yTop_ = y ;
plane.width_ = pos_.width_ = w ;
plane.height_ = pos_.height_ = h ;
plane.mode_ = mode ;
plane.planeOffset_ = 0 ;
unsigned short const adder = (2<<11)|(4<<5)|2 ;
unsigned short *outWords = (unsigned short *)plane.palette_ ;
unsigned short palVal = 0 ;
// printf( "color palette:\n" );
for( unsigned i = 0 ; i < 16 ; i++ ){
// printf( " %04x\n", palVal );
*outWords++ = palVal ;
palVal += adder ;
}
outWords[-1] = 0xFFFF ; // make it truly white
int rval = ioctl( fd_, SM501ALPHA_SETPLANE, &plane );
if( 0 == rval ){
unsigned bytes = plane.width_*plane.height_*2 ;
printf( "mapping %u bytes of RAM\n", bytes );
ram_ = (unsigned char *)mmap( 0, bytes, PROT_READ|PROT_WRITE, MAP_SHARED, fd_, 0 );
if( MAP_FAILED == ram_ ){
perror( "mmap sm501alpha" );
ram_ = 0 ;
}
ramOffs_ = plane.planeOffset_ ;
return ;
}
else
perror( "SM501ALPHA_SETPLANE" );
close( fd_ );
fd_ = 0 ;
}
}
bool imagePNG( void const *inData, // input
unsigned long inSize, // input
void const *&pixData, // output
unsigned short &width, // output
unsigned short &height, // output
void const *&alpha ) // output : 0 if none, delete [] when done
{
pixData = alpha = 0 ; width = height = 0 ;
png_bytep pngData = (png_bytep)inData ;
unsigned const pngLength = inSize ;
if( 8 < pngLength )
{
if( 0 == png_sig_cmp( pngData, 0, pngLength ) )
{
png_structp png_ptr = png_create_read_struct( PNG_LIBPNG_VER_STRING, 0, 0, 0 );
{
if( png_ptr )
{
png_infop info_ptr = png_create_info_struct(png_ptr);
if( info_ptr )
{
png_infop end_info = png_create_info_struct(png_ptr);
if( end_info )
{
if( 0 == setjmp( png_jmpbuf( png_ptr ) ) )
{
pngData_t pngFile ;
pngFile.data_ = pngData ;
pngFile.length_ = pngLength ;
png_set_read_fn( png_ptr, &pngFile, pngRead );
png_read_info(png_ptr, info_ptr);
#ifdef __STANDALONE__
dumpPNGInfo( info_ptr );
#endif
int interlace_type, compression_type, filter_type;
png_uint_32 lWidth, lHeight;
int bit_depth, color_type;
png_get_IHDR( png_ptr, info_ptr, &lWidth, &lHeight,
&bit_depth, &color_type, &interlace_type,
&compression_type, &filter_type);
if( PNG_COLOR_MASK_PALETTE == ( PNG_COLOR_MASK_PALETTE & color_type ) )
png_set_palette_to_rgb( png_ptr );
png_read_update_info(png_ptr, info_ptr);
png_bytep *const row_pointers = new png_bytep[lHeight];
unsigned const rowBytes = png_get_rowbytes( png_ptr, info_ptr );
for( unsigned row = 0; row < lHeight; row++ )
{
row_pointers[row] = (png_bytep)png_malloc( png_ptr, rowBytes );
}
png_read_image( png_ptr, row_pointers );
width = (unsigned short)lWidth ;
height = (unsigned short)lHeight ;
fbDevice_t &fb = getFB();
unsigned char *const alphaChannel = ( color_type & PNG_COLOR_MASK_ALPHA )
? new unsigned char [ width*height ]
: 0 ;
unsigned short *const pixMap = new unsigned short [ width*height ];
for( unsigned row = 0 ; row < height ; row++ )
{
unsigned char const *imgRow = row_pointers[row];
for( unsigned column = 0 ; column < width ; column++, imgRow += info_ptr->channels )
{
pixMap[row*width+column] = fb.get16( imgRow[0], imgRow[1], imgRow[2] );
if( alphaChannel )
alphaChannel[row*width+column] = imgRow[3];
}
}
pixData = pixMap ;
alpha = alphaChannel ;
for( unsigned row = 0; row < lHeight ; row++ )
png_free( png_ptr, row_pointers[row] );
delete [] row_pointers ;
}
else
fprintf( stderr, "Internal PNG error\n" );
png_destroy_read_struct( &png_ptr, &info_ptr, &end_info );
}
}
else
png_destroy_read_struct( &png_ptr, 0, 0 );
}
}
}
else
fprintf( stderr, "Not a PNG file\n" );
}
else
fprintf( stderr, "PNG too short!\n" );
return 0 != pixData ;
}
/**
* WAIT
*/
int handleWAIT(sessionid_t sessionid, bus_t bus, char *device,
char *parameter, char *reply, size_t length)
{
struct timeval time;
int rc = SRCP_UNSUPPORTEDDEVICEGROUP;
*reply = 0x00;
gettimeofday(&time, NULL);
/* check, if bus has FB's */
if (bus_has_devicegroup(bus, DG_FB)
&& strncasecmp(device, "FB", 2) == 0) {
long int port, timeout, nelem;
int value, waitvalue;
nelem =
sscanf(parameter, "%ld %d %ld", &port, &waitvalue, &timeout);
syslog_bus(bus, DBG_INFO, "wait: %d %d %d", port, waitvalue,
timeout);
if (nelem >= 3) {
if (getFB(bus, port, &time, &value) == SRCP_OK
&& value == waitvalue) {
rc = infoFB(bus, port, reply, length);
}
else {
/* we exactly wait for 1/20 seconds */
timeout *= 20;
do {
if (usleep(50000) == -1) {
syslog_bus(bus, DBG_ERROR,
"usleep() failed: %s (errno = %d)\n",
strerror(errno), errno);
}
getFB(bus, port, &time, &value);
timeout--;
}
while ((timeout >= 0) && (value != waitvalue));
if (timeout < 0) {
gettimeofday(&time, NULL);
rc = srcp_fmt_msg(SRCP_TIMEOUT, reply, time);
}
else {
rc = infoFB(bus, port, reply, length);
}
}
}
else {
rc = srcp_fmt_msg(SRCP_LISTTOOSHORT, reply, time);
}
}
else if (bus_has_devicegroup(bus, DG_TIME)
&& strncasecmp(device, "TIME", 4) == 0) {
long d, h, m, s;
int nelem;
nelem = sscanf(parameter, "%ld %ld %ld %ld", &d, &h, &m, &s);
if (nelem >= 4) {
if (time_is_available()) {
/*FIXME: race condition */
bool mustwait;
vtime_t vt;
getTIME(&vt);
do {
mustwait = (((d * 24 + h) * 60 + m) * 60 + s) >=
(((vt.day * 24 + vt.hour) * 60 +
vt.min) * 60 + vt.sec);
/* wait 10ms real time.. */
if (mustwait) {
if (usleep(10000) == -1) {
syslog_bus(bus, DBG_ERROR,
"usleep() failed: %s (errno = %d)\n",
strerror(errno), errno);
}
getTIME(&vt);
}
}
while (mustwait);
rc = infoTIME(reply);
}
else {
rc = srcp_fmt_msg(SRCP_NODATA, reply, time);
}
}
else {
rc = srcp_fmt_msg(SRCP_LISTTOOSHORT, reply, time);
}
}
return rc;
}
JSBool
jsFadeTick( JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval )
{
*rval = JSVAL_FALSE ;
if( 0 == argc )
{
jsval stVal ;
jsval durVal ;
jsval lhVal ;
jsval rhVal ;
jsval xVal, yVal ;
if( JS_GetProperty( cx, obj, "startTick", &stVal )
&&
JS_GetProperty( cx, obj, "duration", &durVal )
&&
JS_GetProperty( cx, obj, "src", &lhVal )
&&
JS_GetProperty( cx, obj, "dest", &rhVal )
&&
JS_GetProperty( cx, obj, "x", &xVal )
&&
JS_GetProperty( cx, obj, "y", &yVal ) )
{
unsigned long const start = JSVAL_TO_INT( stVal );
unsigned long const duration = JSVAL_TO_INT( durVal );
unsigned long const msNow = now_ms();
unsigned long const end = start+duration ;
if( msNow < end )
{
unsigned long const _256ths = ((msNow-start)*256)/duration ;
//printf( "0x%02x /256ths\n", _256ths ); fflush( stdout );
JSObject *const src = JSVAL_TO_OBJECT( lhVal );
JSObject *const dest = JSVAL_TO_OBJECT( rhVal );
jsval widthVal, heightVal, srcPixVal, destPixVal ;
if( JS_GetProperty( cx, src, "width", &widthVal )
&&
JS_GetProperty( cx, src, "height", &heightVal )
&&
JS_GetProperty( cx, src, "pixBuf", &srcPixVal )
&&
JSVAL_IS_STRING( srcPixVal )
&&
JS_GetProperty( cx, dest, "pixBuf", &destPixVal )
&&
JSVAL_IS_STRING( destPixVal )
)
{
int width = JSVAL_TO_INT( widthVal );
int height = JSVAL_TO_INT( heightVal );
JSString *srcPixStr = JSVAL_TO_STRING( srcPixVal );
unsigned short const *const srcPixMap = (unsigned short *)JS_GetStringBytes( srcPixStr );
unsigned const srcLen = JS_GetStringLength( srcPixStr );
JSString *destPixStr = JSVAL_TO_STRING( destPixVal );
unsigned short const *const destPixMap = (unsigned short *)JS_GetStringBytes( destPixStr );
unsigned const destLen = JS_GetStringLength( destPixStr );
if( ( srcLen == destLen )
&&
( srcLen == width * height * sizeof( srcPixMap[0] ) ) )
{
fbDevice_t &fb = getFB();
fb.blend( JSVAL_TO_INT( xVal ), JSVAL_TO_INT( yVal ), width, height, srcPixMap, destPixMap, _256ths );
*rval = JSVAL_TRUE ;
}
else
JS_ReportError( cx, "Invalid pixMap(s)\n" );
}
else
JS_ReportError( cx, "Object not initialized, can't draw\n" );
}
else
{
JSObject *dest = JSVAL_TO_OBJECT( rhVal );
jsval params[2] = { xVal, yVal };
jsImageDraw( cx, dest, 2, params, rval );
} // just draw end item
}
else
JS_ReportError( cx, "getting timeProperties" );
} // need msNow parameter
else
JS_ReportError( cx, "Usage: fade.tick()" );
return JS_TRUE ;
}
static JSBool fade( JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval )
{
*rval = JSVAL_FALSE ;
if( ( 5 == argc )
&&
JSVAL_IS_OBJECT( argv[0] )
&&
JSVAL_IS_OBJECT( argv[1] )
&&
JSVAL_IS_INT( argv[2] )
&&
JSVAL_IS_INT( argv[3] )
&&
JSVAL_IS_INT( argv[4] ) )
{
JSObject *thisObj = JS_NewObject( cx, &jsFadeClass_, NULL, NULL );
if( thisObj )
{
*rval = OBJECT_TO_JSVAL( thisObj ); // root
JSObject *const src = JSVAL_TO_OBJECT( argv[0] );
JSObject *const dest = JSVAL_TO_OBJECT( argv[1] );
jsval lhWidth, lhHeight,
rhWidth, rhHeight ;
if( JS_GetProperty( cx, src, "width", &lhWidth )
&&
JS_GetProperty( cx, src, "height", &lhHeight )
&&
JS_GetProperty( cx, dest, "width", &rhWidth )
&&
JS_GetProperty( cx, dest, "height", &rhHeight ) )
{
if( ( JSVAL_TO_INT( lhWidth ) == JSVAL_TO_INT( rhWidth ) )
&&
( JSVAL_TO_INT( lhHeight ) == JSVAL_TO_INT( rhHeight ) ) )
{
int const duration = JSVAL_TO_INT( argv[2] );
if( 0 < duration )
{
int const x = JSVAL_TO_INT( argv[3] );
int const y = JSVAL_TO_INT( argv[4] );
fbDevice_t &fbDev = getFB();
if( ( 0 <= x ) && ( 0 <= y )
&&
( fbDev.getWidth() > x )
&&
( fbDev.getHeight() > y ) )
{
for( int i = 0 ; i < argc ; i++ )
JS_DefineProperty( cx, thisObj,
fadeProperties_[i].name,
argv[i], 0, 0, JSPROP_ENUMERATE|JSPROP_PERMANENT|JSPROP_READONLY );
unsigned long const tickNow = now_ms();
JS_DefineProperty( cx, thisObj, fadeProperties_[argc].name, INT_TO_JSVAL( tickNow ),
0, 0, JSPROP_ENUMERATE|JSPROP_PERMANENT|JSPROP_READONLY );
}
}
else
JS_ReportError( cx, "duration must be > 0" );
}
else
JS_ReportError( cx, "fade: images must be the same size\n"
"%d/%d, %d/%d\n",
JSVAL_TO_INT( lhWidth ), JSVAL_TO_INT( rhWidth ),
JSVAL_TO_INT( lhHeight ), JSVAL_TO_INT( rhHeight ) );
}
else
JS_ReportError( cx, "fade: getting image sizes" );
}
else
JS_ReportError( cx, "Error allocating fade" );
}
else
JS_ReportError( cx, "Usage : new fade( srcImg, destImg, durationMs );" );
return JS_TRUE ;
}
static JSBool
jsAlphaMapDraw( JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval )
{
*rval = JSVAL_FALSE ;
JSObject *imageObj = 0 ;
if( ( 3 <= argc )
&&
( 4 >= argc )
&&
JSVAL_IS_INT( argv[0] )
&&
JSVAL_IS_INT( argv[1] )
&&
JSVAL_IS_INT( argv[2] )
&&
( ( 3 == argc )
||
( JSVAL_IS_OBJECT( argv[3] )
&&
( 0 != ( imageObj = JSVAL_TO_OBJECT( argv[3] ) ) ) ) )
)
{
fbDevice_t &fb = getFB();
unsigned char *imageMem = 0 ;
unsigned short imageWidth = 0 ;
unsigned short imageHeight = 0 ;
unsigned short imageStride = 0;
if( 3 == argc )
{
#ifdef KERNEL_FB
imageMem = (unsigned char *)fb.getRow(0);
imageWidth = fb.getWidth();
imageHeight = fb.getHeight();
imageStride = fb.getStride();
#else
JS_ReportError( cx, "draw alphaMap onto screen" );
return JS_TRUE ;
#endif
}
else
{
jsval vPixMap ;
jsval vWidth ;
jsval vHeight ;
JSString *sPixMap ;
if( JS_GetProperty( cx, imageObj, "pixBuf", &vPixMap )
&&
JSVAL_IS_STRING( vPixMap )
&&
( 0 != ( sPixMap = JSVAL_TO_STRING( vPixMap ) ) )
&&
JS_GetProperty( cx, imageObj, "width", &vWidth )
&&
JSVAL_IS_INT( vWidth )
&&
JS_GetProperty( cx, imageObj, "height", &vHeight )
&&
JSVAL_IS_INT( vHeight ) )
{
unsigned const bmWidth = JSVAL_TO_INT( vWidth );
unsigned bmHeight = JSVAL_TO_INT( vHeight );
if( JS_GetStringLength( sPixMap ) == bmWidth*bmHeight*2 )
{
imageMem = (unsigned char *)JS_GetStringBytes( sPixMap );
imageWidth = bmWidth ;
imageHeight = bmHeight ;
imageStride = imageWidth << 1;
}
else
JS_ReportError( cx, "Error getting pixel data" );
}
else
JS_ReportError( cx, "Invalid image" );
if( !imageMem )
return JS_TRUE ;
}
int const specX = JSVAL_TO_INT( argv[0] );
int const specY = JSVAL_TO_INT( argv[1] );
unsigned const rgb = JSVAL_TO_INT( argv[2] );
jsval vPixMap ;
jsval vWidth ;
jsval vHeight ;
JSString *sPixMap ;
if( JS_GetProperty( cx, obj, "pixBuf", &vPixMap )
&&
JSVAL_IS_STRING( vPixMap )
&&
( 0 != ( sPixMap = JSVAL_TO_STRING( vPixMap ) ) )
&&
JS_GetProperty( cx, obj, "width", &vWidth )
&&
JSVAL_IS_INT( vWidth )
&&
JS_GetProperty( cx, obj, "height", &vHeight )
&&
JSVAL_IS_INT( vHeight ) )
{
unsigned bmWidth = JSVAL_TO_INT( vWidth );
unsigned const bmHeight = JSVAL_TO_INT( vHeight );
//printf( "string gets drawn here\n"
// "x %u\n"
// "y %u\n"
// "rgb 0x%06x\n"
// "w %u\n"
// "h %u\n", specX, specY, rgb, bmWidth, bmHeight );
//
// user specifies position of baseline, adjust to top of bitmap
//
unsigned bmStartY = 0 ;
int screenStartY = specY ;
if( 0 > screenStartY )
{
bmStartY = ( 0-screenStartY );
screenStartY = 0 ;
} // starts off the screen, walk down in alphaMap
unsigned bmStartX = 0 ;
int screenStartX = specX ;
if( 0 > screenStartX )
{
bmStartX = ( 0 - screenStartX );
screenStartX = 0 ;
} // starts off the screen, walk right in alphaMap
if( ( bmWidth > bmStartX )
&&
( screenStartX <= imageWidth )
&&
( screenStartY < imageHeight )
&&
( bmStartY < bmWidth ) )
{
//
// point row at start row/col
//
unsigned char *inRow = (unsigned char *)JS_GetStringBytes( sPixMap )
+ (bmWidth*bmStartY) + bmStartX ;
unsigned const maxHeight = bmHeight-bmStartY ;
unsigned const red = (unsigned char)( rgb >> 16 );
unsigned const green = (unsigned char)( rgb >> 8 );
unsigned const blue = (unsigned char)rgb ;
fb.antialias( inRow,
bmWidth,
maxHeight,
screenStartX,
screenStartY,
screenStartX+bmWidth-1,
screenStartY+maxHeight-1,
red, green, blue,
imageMem, imageWidth, imageHeight, imageStride);
} // room for something
