//----------------------------------------------------------------------------
void VolumeRenderer::OnDisplay ()
{
mRT->DrawWireFrame();
for (int y = 0; y < mBound; ++y)
{
for (int x = 0; x < mBound; ++x)
{
int i = x + mBound*y;
unsigned int value = mRT->GetRendered(i);
unsigned char r = GetRed24(value);
unsigned char g = GetGreen24(value);
unsigned char b = GetBlue24(value);
SetPixel(x, y, ColorRGB(r, g, b));
}
}
WindowApplication2::OnDisplay();
}
//----------------------------------------------------------------------------
bool ImViewer::OnPrecreate ()
{
if (!WindowApplication2::OnPrecreate())
{
return false;
}
char* filename = 0;
Application::TheCommand->GetFilename(filename);
if (!filename)
{
// Input filename must be specified on the command line.
return false;
}
// Load the image data.
int rtti, sizeOf;
char* data = 0;
bool loaded = Lattice::LoadRaw(filename, mNumDimensions, mBound,
mNumPixels, rtti, sizeOf, data);
if (!loaded)
{
delete1(data);
delete1(filename);
return false;
}
// Replace the window title by the filename.
mWindowTitle = std::string(filename);
delete1(filename);
// Set window size based on image size. Adjust height to allow for
// status bar. The window width is chosen so that rows are multiples
// of 4 bytes.
mHeight = mBound[1];
if (mHeight < 128)
{
mHeight = 128;
}
int statusHeight = 20;
mHeight += statusHeight;
mWidth = mBound[0];
if (mWidth < 256)
{
mWidth = 256;
}
int remainder = (mWidth % 4);
if (remainder > 0)
{
mWidth += 4 - remainder;
}
// The application image is stored differently depending on the input
// image format.
int i;
if (rtti == Ergb5::GetRTTI())
{
mColorData = new1<ColorRGB>(mNumPixels);
unsigned short* usData = (unsigned short*)data;
for (i = 0; i < mNumPixels; i++)
{
unsigned char r = GetRed16(usData[i]);
unsigned char g = GetGreen16(usData[i]);
unsigned char b = GetBlue16(usData[i]);
mColorData[i] = ColorRGB(r, g, b);
}
}
else if (rtti == Ergb8::GetRTTI())
{
mColorData = new1<ColorRGB>(mNumPixels);
unsigned int* uiData = (unsigned int*)data;
for (i = 0; i < mNumPixels; i++)
{
unsigned char r = GetRed24(uiData[i]);
unsigned char g = GetGreen24(uiData[i]);
unsigned char b = GetBlue24(uiData[i]);
mColorData[i] = ColorRGB(r, g, b);
}
}
else if (rtti == Efloat::GetRTTI())
{
mFloatData = new1<float>(mNumPixels);
memcpy(mFloatData, data, mNumPixels*sizeof(float));
}
else
{
mFloatData = new1<float>(mNumPixels);
ImageConvert(mNumPixels, rtti, data, Efloat::GetRTTI(), mFloatData);
}
delete1(data);
// Compute min, max and range of float images.
if (mFloatData)
{
mMin = mFloatData[0];
mMax = mMin;
for (i = 1; i < mNumPixels; ++i)
{
if (mFloatData[i] < mMin)
{
mMin = mFloatData[i];
}
else if (mFloatData[i] > mMax)
{
mMax = mFloatData[i];
}
}
mRange = mMax - mMin;
if (mRange > 0.0f)
{
mInvRange = 1.0f/mRange;
}
else
{
mInvRange = 0.0f;
}
}
// We only need memory to hold the active slice.
mNumSlicePixels = mBound[0]*mBound[1];
return true;
}
