int
BitmapToYXBandedRectangles(ImageRect * pSrcRect, RECT_T * out)
{
RECT_T *pPrevLine = NULL, *pFirst = out, *pThis = pFirst;
int i, j, i0;
int length;
for (j = 0; j < pSrcRect->numLines; j++) {
/* generate data for a scanline */
byte_t *pSrc = (byte_t *) pSrcRect->pBits + j * pSrcRect->stride;
RECT_T *pLine = pThis;
i = 0;
do {
while (i < pSrcRect->numSamples &&
getRGBA(pSrc, pSrcRect->format) < ALPHA_THRESHOLD) {
pSrc += pSrcRect->depthBytes;
++i;
}
if (i >= pSrcRect->numSamples) {
break;
}
i0 = i;
while (i < pSrcRect->numSamples &&
getRGBA(pSrc, pSrcRect->format) >= ALPHA_THRESHOLD) {
pSrc += pSrcRect->depthBytes;
++i;
}
RECT_SET(*pThis, i0, j, i - i0, 1);
++pThis;
} while (i < pSrcRect->numSamples);
/* check if the previous scanline is exactly the same, merge if so
(this is the only optimization we can use for YXBanded rectangles, and win32 supports
YXBanded only */
length = pThis - pLine;
if (pPrevLine && pLine - pPrevLine == length) {
for (i = 0; i < length && RECT_EQ_X(pPrevLine[i], pLine[i]); ++i) {
}
if (i == pLine - pPrevLine) {
// do merge
for (i = 0; i < length; i++) {
RECT_INC_HEIGHT(pPrevLine[i]);
}
pThis = pLine;
continue;
}
}
/* or else use the generated scanline */
pPrevLine = pLine;
}
return pThis - pFirst;
}
OOFImage3D::OOFImage3D(const std::string &name, const ICoord &isize,
const std::vector<unsigned short> *data)
: name_(name)
{
image = vtkImageData::New();
image->SetDimensions(isize(0),isize(1),isize(2));
image->SetScalarTypeToUnsignedChar();
image->SetNumberOfScalarComponents(3);
image->AllocateScalars();
int i,j,k;
for (i=0; i<isize(0); i++) {
for (j=0; j<isize(1); j++) {
for (k=0; k<isize(2); k++) {
image->SetScalarComponentFromFloat(i,j,k,0,
(float)((*data)[3*(i*(isize(1))*(isize(2))+j*isize(2)+k)]));
image->SetScalarComponentFromFloat(i,j,k,1,
(float)((*data)[3*(i*(isize(1))*(isize(2))+j*isize(2)+k)+1]));
image->SetScalarComponentFromFloat(i,j,k,2,
(float)((*data)[3*(i*(isize(1))*(isize(2))+j*isize(2)+k)+2]));
}
}
}
image->Update();
image = getRGBA();
padImage(1);
setup();
}
bool Color::isDark() const
{
float r, g, b, a, h, s, v;
getRGBA(r, g, b, a);
convertRGBToHSV(r, g, b, h, s, v);
return a > 0.5 && v < 0.5;
}
/*
=============
getData
Gets the image data for the specified bit depth.
=============
*/
char *getData (FILE *s, int sz, int iBits)
{
if (iBits == 32)
return getRGBA (s, sz);
else if (iBits == 24)
return getRGB (s, sz);
else if (iBits == 8)
return getGray (s, sz);
}
Color Color::dark() const
{
float r, g, b, a, h, s, v;
getRGBA(r, g, b, a);
convertRGBToHSV(r, g, b, h, s, v);
v = max(0.0f, min(v - 0.33f, 1.0f));
convertHSVToRGB(h, s, v, r, g, b);
return Color((int)(r * 255), (int)(g * 255), (int)(b * 255), (int)(a * 255));
}
bool Color::isDark() const
{
float red;
float green;
float blue;
float alpha;
getRGBA(red, green, blue, alpha);
float largestNonAlphaChannel = std::max(red, std::max(green, blue));
return alpha > 0.5 && largestNonAlphaChannel < 0.5;
}
char *getData (FILE *s, int sz, int imageWidth, int imageHeight, int iBits, int picmip)
{
char *data;
if (iBits == 32)
return (char *)getRGBA (s, sz, picmip);
else if (iBits == 24)
{
data = (char *)getRGB (s, sz, imageWidth, imageHeight, picmip);
return data;
}
return NULL;
}
Color Color::dark() const
{
// Hardcode this common case for speed.
if (m_color == white)
return darkenedWhite;
const float scaleFactor = nextafterf(256.0f, 0.0f);
float r, g, b, a;
getRGBA(r, g, b, a);
float v = std::max(r, std::max(g, b));
float multiplier = std::max(0.0f, (v - 0.33f) / v);
return Color(static_cast<int>(multiplier * r * scaleFactor),
static_cast<int>(multiplier * g * scaleFactor),
static_cast<int>(multiplier * b * scaleFactor),
alpha());
}
void TGAImage::initFirstLOD( unsigned char* srcData)
{
lodData[0] = new unsigned char[ getLODwidth(0) * getLODheight(0) * BPP ] ;
for( int i = 0 ; i < getLODwidth(0) ; i++ )
for( int j = 0 ; j < getLODheight(0) ; j++ )
{
unsigned char r, g, b, a ;
if( srcData ) getRGBA( srcData, i, getLODheight(0) - 1 - j, r, g, b, a ) ;
else r = g = b = a = 0 ;
setR( 0, i, j, r ) ;
setG( 0, i, j, g ) ;
setB( 0, i, j, b ) ;
setA( 0, i, j, a ) ;
}
goodLOD = 0 ;
}
Color Color::light() const
{
// Hardcode this common case for speed.
if (m_color == black)
return lightenedBlack;
const float scaleFactor = nextafterf(256.0f, 0.0f);
float r, g, b, a;
getRGBA(r, g, b, a);
float v = std::max(r, std::max(g, b));
if (v == 0.0f)
// Lightened black with alpha.
return Color(0x54, 0x54, 0x54, alpha());
float multiplier = std::min(1.0f, v + 0.33f) / v;
return Color(static_cast<int>(multiplier * r * scaleFactor),
static_cast<int>(multiplier * g * scaleFactor),
static_cast<int>(multiplier * b * scaleFactor),
alpha());
}
void Surface::rect(SDL_Rect *dest, const SDL_Color& c) {
SDL_FillRect(surface, dest, getRGBA(c));
}
void Surface::circle(Sint16 x, Sint16 y, Sint16 r, const SDL_Color& c) {
aacircleColor(surface, x, y, r, getRGBA(c));
}
void Surface::trigon(Sint16 x1, Sint16 y1, Sint16 x2, Sint16 y2, Sint16 x3, Sint16 y3, const SDL_Color& c) {
aatrigonColor(surface, x1, y1, x2, y2, x3, y3, getRGBA(c));
}
void Surface::line(Sint16 x1, Sint16 y1, Sint16 x2, Sint16 y2, const SDL_Color& c) {
aalineColor(surface, x1, y1, x2, y2, getRGBA(c));
}
void Surface::thickLine(Sint16 x1, Sint16 y1, Sint16 x2, Sint16 y2, Uint8 width, const SDL_Color& c) {
thickLineColor(surface, x1, y1, x2, y2, width, getRGBA(c));
}
OOFImage3D::OOFImage3D(const std::string &name, const std::string &format, const std::string &filepattern, int numfiles)
: name_(name)
{
vtkImageReader2 *imageReader;
vtkIndent indent;
int depth = numfiles;
// the width and height seem to be set automatically
int extent[6] = {0,0,0,0,0,depth-1};
if(format.compare("pnm")==0 || format.compare("pbm")==0 || format.compare("ppm")==0) {
imageReader = vtkPNMReader::New();
}
else if(format.compare("jpeg")==0) {
imageReader = vtkJPEGReader::New();
}
else if(format.compare("tiff")==0) {
imageReader = vtkTIFFReader::New();
}
else if(format.compare("png")==0) {
imageReader = vtkPNGReader::New();
}
else
throw ErrSetupError("Incompatible image format: " + format);
//cout << "imageReader refcount " << imageReader->GetReferenceCount() << endl;
//imageReader->SetReferenceCount(1);
//imageReader->UnRegister((vtkObjectBase*)imageReader->GetExecutive());
//cout << "imageReader refcount " << imageReader->GetReferenceCount() << endl;
imageReader->SetDataExtent(extent);
imageReader->SetDataSpacing(1,1,1);
imageReader->SetFilePattern( filepattern.c_str() );
imageReader->SetDataScalarTypeToUnsignedChar();
//cout << imageReader->GetReleaseDataFlag() << endl;
//imageReader->ReleaseDataFlagOn();
//imageReader->DebugOn();
//cout << imageReader->GetReleaseDataFlag() << endl;
//cout << "imageReader refcount " << imageReader->GetReferenceCount() << endl;
image = imageReader->GetOutput();
image->Update();
pipeline.push_back(imageReader);
// for certain image formats such as PNG, the bit depth may be
// greater than 8 and the reader will return a vtkImageData object
// with a scalar type other than unsigned char. We need to scale
// the data and make it an unsigned char type
if(image->GetScalarType() != VTK_UNSIGNED_CHAR) {
vtkImageShiftScale *shiftscale = vtkImageShiftScale::New();
shiftscale->SetInput(image);
shiftscale->SetShift(0);
shiftscale->SetScale(255.0/image->GetScalarTypeMax());
shiftscale->SetOutputScalarTypeToUnsignedChar();
image = shiftscale->GetOutput();
image->Update();
pipeline.push_back(shiftscale);
}
//image->DebugOn();
//cout << "image refcount " << image->GetReferenceCount() << endl;
//image->Register(NULL);
//cout << "image refcount " << image->GetReferenceCount() << endl;
//image->SetSource(NULL);
//cout << "image refcount " << image->GetReferenceCount() << endl;
//imageReader->Delete();
//cout << "image refcount " << image->GetReferenceCount() << endl;
image = getRGBA();
padImage(1);
//image->PrintSelf(cout, indent);
setup();
}