void DIBPixelData::setRGBABitmapAlpha(HDC hdc, const IntRect& dstRect, unsigned char level)
{
HBITMAP bitmap = static_cast<HBITMAP>(GetCurrentObject(hdc, OBJ_BITMAP));
DIBPixelData pixelData(bitmap);
ASSERT(pixelData.bitsPerPixel() == 32);
IntRect drawRect(dstRect);
XFORM trans;
GetWorldTransform(hdc, &trans);
IntSize transformedPosition(trans.eDx, trans.eDy);
drawRect.move(transformedPosition);
int pixelDataWidth = pixelData.size().width();
int pixelDataHeight = pixelData.size().height();
IntRect bitmapRect(0, 0, pixelDataWidth, pixelDataHeight);
drawRect.intersect(bitmapRect);
if (drawRect.isEmpty())
return;
RGBQUAD* bytes = reinterpret_cast<RGBQUAD*>(pixelData.buffer());
bytes += drawRect.y() * pixelDataWidth;
size_t width = drawRect.width();
size_t height = drawRect.height();
int x = drawRect.x();
for (size_t i = 0; i < height; i++) {
RGBQUAD* p = bytes + x;
for (size_t j = 0; j < width; j++) {
p->rgbReserved = level;
p++;
}
bytes += pixelDataWidth;
}
}
Pixel R8Image::pixel(size_t row, size_t column) const
{
int idx = index(row, column);
const Byte *data = pixelData();
return Pixel(data[idx], 255, 255);
}
void R8Image::setPixel(size_t row, size_t column, const Pixel& pixel)
{
int idx = index(row, column);
Byte *data = pixelData();
data[idx] = pixel.r;
}
// FIXME: Is it possible to merge getWindowsContext and createWindowsBitmap into a single API
// suitable for all clients?
void GraphicsContext::releaseWindowsContext(HDC hdc, const IntRect& dstRect, bool supportAlphaBlend, bool mayCreateBitmap)
{
bool createdBitmap = mayCreateBitmap && (!m_data->m_hdc || isInTransparencyLayer());
if (!createdBitmap) {
m_data->restore();
return;
}
if (dstRect.isEmpty())
return;
OwnPtr<HBITMAP> bitmap = adoptPtr(static_cast<HBITMAP>(GetCurrentObject(hdc, OBJ_BITMAP)));
DIBPixelData pixelData(bitmap.get());
ASSERT(pixelData.bitsPerPixel() == 32);
CGContextRef bitmapContext = CGBitmapContextCreate(pixelData.buffer(), pixelData.size().width(), pixelData.size().height(), 8,
pixelData.bytesPerRow(), deviceRGBColorSpaceRef(), kCGBitmapByteOrder32Little |
(supportAlphaBlend ? kCGImageAlphaPremultipliedFirst : kCGImageAlphaNoneSkipFirst));
CGImageRef image = CGBitmapContextCreateImage(bitmapContext);
CGContextDrawImage(m_data->m_cgContext.get(), dstRect, image);
// Delete all our junk.
CGImageRelease(image);
CGContextRelease(bitmapContext);
::DeleteDC(hdc);
}
void GraphicsContext::releaseWindowsContext(HDC hdc, const IntRect& dstRect, bool supportAlphaBlend, bool mayCreateBitmap)
{
bool createdBitmap = mayCreateBitmap && (!m_data->m_hdc || isInTransparencyLayer());
if (!hdc || !createdBitmap) {
m_data->restore();
return;
}
if (dstRect.isEmpty())
return;
OwnPtr<HBITMAP> bitmap = adoptPtr(static_cast<HBITMAP>(GetCurrentObject(hdc, OBJ_BITMAP)));
DIBPixelData pixelData(bitmap.get());
ASSERT(pixelData.bitsPerPixel() == 32);
// If this context does not support alpha blending, then it may have
// been drawn with GDI functions which always set the alpha channel
// to zero. We need to manually set the bitmap to be fully opaque.
unsigned char* bytes = reinterpret_cast<unsigned char*>(pixelData.buffer());
if (!supportAlphaBlend)
setRGBABitmapAlpha(bytes, pixelData.size().height() * pixelData.bytesPerRow(), 255);
drawBitmapToContext(m_data, platformContext()->cr(), pixelData, IntSize(dstRect.x(), dstRect.height() + dstRect.y()));
::DeleteDC(hdc);
}
static CGContextRef CGContextWithHDC(HDC hdc, bool hasAlpha)
{
HBITMAP bitmap = static_cast<HBITMAP>(GetCurrentObject(hdc, OBJ_BITMAP));
DIBPixelData pixelData(bitmap);
// FIXME: We can get here because we asked for a bitmap that is too big
// when we have a tiled layer and we're compositing. In that case
// bmBitsPixel will be 0. This seems to be benign, so for now we will
// exit gracefully and look at it later:
// https://bugs.webkit.org/show_bug.cgi?id=52041
// ASSERT(bitmapBits.bitsPerPixel() == 32);
if (pixelData.bitsPerPixel() != 32)
return 0;
CGBitmapInfo bitmapInfo = kCGBitmapByteOrder32Little | (hasAlpha ? kCGImageAlphaPremultipliedFirst : kCGImageAlphaNoneSkipFirst);
CGContextRef context = CGBitmapContextCreate(pixelData.buffer(), pixelData.size().width(), pixelData.size().height(), 8,
pixelData.bytesPerRow(), deviceRGBColorSpaceRef(), bitmapInfo);
// Flip coords
CGContextTranslateCTM(context, 0, pixelData.size().height());
CGContextScaleCTM(context, 1, -1);
// Put the HDC In advanced mode so it will honor affine transforms.
SetGraphicsMode(hdc, GM_ADVANCED);
return context;
}
void mitk::SegmentationInterpolationController::ScanChangedSlice( itk::Image<DATATYPE, 2>*, const SetChangedSliceOptions& options )
{
DATATYPE* pixelData( (DATATYPE*)options.pixelData );
unsigned int timeStep( options.timeStep );
unsigned int sliceDimension( options.sliceDimension );
unsigned int sliceIndex( options.sliceIndex );
if ( sliceDimension > 2 ) return;
if ( sliceIndex >= m_SegmentationCountInSlice[timeStep][sliceDimension].size() ) return;
unsigned int dim0( options.dim0 );
unsigned int dim1( options.dim1 );
int numberOfPixels(0); // number of pixels in this slice that are not 0
unsigned int dim0max = m_SegmentationCountInSlice[timeStep][dim0].size();
unsigned int dim1max = m_SegmentationCountInSlice[timeStep][dim1].size();
// scan the slice from two directions
// and set the flags for the two dimensions of the slice
for (unsigned int v = 0; v < dim1max; ++v)
{
for (unsigned int u = 0; u < dim0max; ++u)
{
DATATYPE value = *(pixelData + u + v * dim0max);
assert ( (signed) m_SegmentationCountInSlice[timeStep][dim0][u] + (signed)value >= 0 ); // just for debugging. This must always be true, otherwise some counting is going wrong
assert ( (signed) m_SegmentationCountInSlice[timeStep][dim1][v] + (signed)value >= 0 );
m_SegmentationCountInSlice[timeStep][dim0][u] = static_cast<unsigned int>( m_SegmentationCountInSlice[timeStep][dim0][u] + value );
m_SegmentationCountInSlice[timeStep][dim1][v] = static_cast<unsigned int>( m_SegmentationCountInSlice[timeStep][dim1][v] + value );
numberOfPixels += static_cast<int>( value );
}
}
// flag for the dimension of the slice itself
assert ( (signed) m_SegmentationCountInSlice[timeStep][sliceDimension][sliceIndex] + numberOfPixels >= 0 );
m_SegmentationCountInSlice[timeStep][sliceDimension][sliceIndex] += numberOfPixels;
//MITK_INFO << "scan t=" << timeStep << " from (0,0) to (" << dim0max << "," << dim1max << ") (" << pixelData << "-" << pixelData+dim0max*dim1max-1 << ") in slice " << sliceIndex << " found " << numberOfPixels << " pixels" << std::endl;
}
R8Image::~R8Image()
{
delete [] pixelData();
}
inline ImageData load_image(std::string fileName)
{
int w, h, comp;
stbi_uc *temp = stbi_load(fileName.c_str(), &w, &h, &comp, 0);
if (nullptr == temp)
throw std::runtime_error("Unable to load file: " + fileName);
std::shared_ptr<stbi_uc> data(temp, [](stbi_uc *d) {stbi_image_free(d); });
temp = nullptr;
ImageData i;
i.width = w;
i.height = h;
i.bitsPerPixel = comp * 8;
i.bytesPerPixel = comp;
i.size = i.width * i.height * i.bytesPerPixel;
// the image needs to be flipped vertically because
if (i.bytesPerPixel == 4)
{
i.format = GL_RGBA8;
std::vector<RGBA> pixelData((RGBA*)data.get(), ((RGBA*)data.get() + (w * h)));
std::vector<RGBA> flippedData(w * h);
std::vector<RGBA>::iterator iter = flippedData.begin();
for (int yPos = (h - 1) * w; yPos >= 0; yPos -= w)
{
for (int xPos = 0; xPos < w; ++xPos, ++iter)
{
*iter = pixelData[yPos + xPos];
}
}
i.pixels.resize(i.size);
memcpy(i.pixels.data(), flippedData.data(), i.size);
}
else
if (i.bytesPerPixel == 3)
{
i.format = GL_RGB8;
std::vector<RGB> pixelData((RGB*)data.get(), ((RGB*)data.get() + (w * h)));
std::vector<RGB> flippedData(w * h);
std::vector<RGB>::iterator iter = flippedData.begin();
for (int yPos = (h - 1) * w; yPos >= 0; yPos -= w)
{
for (int xPos = 0; xPos < w; ++xPos, ++iter)
{
*iter = pixelData[yPos + xPos];
}
}
i.pixels.resize(i.size);
memcpy(i.pixels.data(), flippedData.data(), i.size);
}
else
{
// not a true color format
throw std::runtime_error("Unsupported bytes per pixel");
}
return i;
}
TextureAtlasGeneratorResult TextureAtlasGenerator::Generate(
const std::vector<TextureAtlasGeneratorSource>& sources,
int width,
int height)
{
POMDOG_ASSERT(width > 0);
POMDOG_ASSERT(height > 0);
TextureAtlasGeneratorResult result;
auto & regions = result.Atlas.regions;
std::unordered_map<std::shared_ptr<Image>, int> indices;
for (auto & source : sources) {
POMDOG_ASSERT(!source.Name.empty());
TextureAtlasRegion region;
region.Name = source.Name;
regions.push_back(region);
indices.emplace(source.Image, regions.size() - 1);
POMDOG_ASSERT(regions.at(indices[source.Image]).Name == source.Name);
}
result.HasError = false;
auto root = std::make_shared<TexturePackNode>(Rectangle{0, 0, width, height});
for (auto & source : sources) {
auto & image = source.Image;
auto clipBounds = Clip(image);
auto node = Insert(root, clipBounds.Width, clipBounds.Height);
POMDOG_ASSERT(node);
if (!node) {
// TODO: error handling
result.HasError = true;
#if defined(DEBUG)
std::printf("Cannot pack the texture '%s'", regions[indices[image]].Name.c_str());
#endif
break;
}
node->image = image;
node->clipBounds = clipBounds;
}
std::vector<Color> pixelData(width * height);
std::fill(pixelData.begin(), pixelData.end(), Color{0, 0, 0, 0});
Traverse(root, [&](const TexturePackNode& node) {
const auto image = node.image;
auto & region = regions[indices[image]].Region;
region.Subrect.X = static_cast<int>(node.rect.X);
region.Subrect.Y = static_cast<int>(node.rect.Y);
region.Subrect.Width = node.clipBounds.Width;
region.Subrect.Height = node.clipBounds.Height;
static_assert(std::is_same<decltype(node.clipBounds.X), std::int32_t>::value, "");
static_assert(std::is_same<decltype(node.clipBounds.Y), std::int32_t>::value, "");
static_assert(std::is_same<decltype(region.XOffset), std::int16_t>::value, "");
static_assert(std::is_same<decltype(region.YOffset), std::int16_t>::value, "");
static_assert(std::is_same<decltype(image->GetWidth()), int>::value, "");
static_assert(std::is_same<decltype(image->GetHeight()), int>::value, "");
static_assert(std::is_same<decltype(region.Width), std::int16_t>::value, "");
static_assert(std::is_same<decltype(region.Height), std::int16_t>::value, "");
POMDOG_ASSERT(node.clipBounds.X <= std::numeric_limits<std::int16_t>::max());
POMDOG_ASSERT(node.clipBounds.Y <= std::numeric_limits<std::int16_t>::max());
POMDOG_ASSERT(image->GetWidth() <= std::numeric_limits<std::int16_t>::max());
POMDOG_ASSERT(image->GetHeight() <= std::numeric_limits<std::int16_t>::max());
region.XOffset = static_cast<std::int16_t>(node.clipBounds.X);
region.YOffset = static_cast<std::int16_t>(node.clipBounds.Y);
region.Width = static_cast<std::int16_t>(image->GetWidth());
region.Height = static_cast<std::int16_t>(image->GetHeight());
const auto start = region.Subrect.X + region.Subrect.Y * width;
for (int y = 0; y < region.Subrect.Height; ++y) {
const auto offset = region.XOffset + ((region.YOffset + y) * image->GetWidth());
static_assert(sizeof(decltype(*image->GetData())) == sizeof(Color), "");
std::memcpy(
pixelData.data() + start + (y * width),
image->GetData() + offset,
sizeof(Color) * region.Subrect.Width);
}
});
result.Image = std::make_shared<Image>(width, height);
result.Image->SetData(std::move(pixelData));
return result;
}
bool TestRenderer::LoadTexture(const std::wstring& filename, ID3D11ShaderResourceView** srv)
{
FileHandle texFile(CreateFile(filename.c_str(), GENERIC_READ,
FILE_SHARE_READ, nullptr, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, nullptr));
if (!texFile.IsValid())
{
LogError(L"Failed to open texture.");
return false;
}
DWORD bytesRead{};
uint32_t fileSize = GetFileSize(texFile.Get(), nullptr);
TextureHeader texHeader{};
if (!ReadFile(texFile.Get(), &texHeader, sizeof(texHeader), &bytesRead, nullptr))
{
LogError(L"Failed to read texture.");
return false;
}
if (texHeader.Signature != TextureHeader::ExpectedSignature)
{
LogError(L"Invalid texture file.");
return false;
}
uint32_t pixelDataSize = fileSize - sizeof(TextureHeader);
std::unique_ptr<uint8_t[]> pixelData(new uint8_t[pixelDataSize]);
if (!ReadFile(texFile.Get(), pixelData.get(), pixelDataSize, &bytesRead, nullptr))
{
LogError(L"Failed to read texture data.");
return false;
}
D3D11_TEXTURE2D_DESC td{};
td.ArraySize = texHeader.ArrayCount;
td.Format = texHeader.Format;
#if USE_SRGB
if (td.Format == DXGI_FORMAT_R8G8B8A8_UNORM)
{
td.Format = DXGI_FORMAT_R8G8B8A8_UNORM_SRGB;
}
else if (td.Format == DXGI_FORMAT_B8G8R8A8_UNORM)
{
td.Format = DXGI_FORMAT_B8G8R8A8_UNORM_SRGB;
}
#endif
td.Width = texHeader.Width;
td.Height = texHeader.Height;
td.MipLevels = texHeader.MipLevels;
td.BindFlags = D3D11_BIND_SHADER_RESOURCE;
td.SampleDesc.Count = 1;
td.Usage = D3D11_USAGE_DEFAULT;
D3D11_SUBRESOURCE_DATA init[20] {};
uint32_t bpp = (uint32_t)BitsPerPixel(td.Format) / 8;
ComPtr<ID3D11Texture2D> texture;
HRESULT hr = S_OK;
// Only try to use mips if width & height are the same size
if (td.Width == td.Height && td.MipLevels > 1)
{
uint32_t width = td.Width;
uint32_t height = td.Height;
uint8_t* pPixels = pixelData.get();
for (int m = 0; m < (int)td.MipLevels; ++m)
{
init[m].pSysMem = pPixels;
init[m].SysMemPitch = width * bpp;
init[m].SysMemSlicePitch = width * height * bpp;
width = max(width >> 1, 1);
height = max(height >> 1, 1);
pPixels += init[m].SysMemSlicePitch;
}
hr = Device->CreateTexture2D(&td, init, &texture);
}
//--------------------------------------------------------------
void ofApp::keyPressed(int key){
infoText = "";
bool buildTexture = false;
switch ( key) {
case 'r':
record = true;
break;
case '1':
trainingClassLabel = 1;
break;
case '2':
trainingClassLabel = 2;
break;
case '3':
trainingClassLabel = 3;
break;
case 't':
if( pipeline.train( trainingData ) ){
infoText = "Pipeline Trained";
buildTexture = true;
}else infoText = "WARNING: Failed to train pipeline";
break;
case 's':
if( trainingData.save("TrainingData.grt") ){
infoText = "Training data saved to file";
}else infoText = "WARNING: Failed to save training data to file";
break;
case 'l':
if( trainingData.load("TrainingData.grt") ){
infoText = "Training data saved to file";
}else infoText = "WARNING: Failed to load training data from file";
break;
case 'c':
trainingData.clear();
infoText = "Training data cleared";
break;
default:
break;
}
if( buildTexture ){
const unsigned int rows = TEXTURE_RESOLUTION;
const unsigned int cols = TEXTURE_RESOLUTION;
const unsigned int size = rows*cols*4;
vector<float> pixelData( size );
ofFloatPixels pixels;
unsigned int index = 0;
unsigned int classLabel = 0;
VectorFloat featureVector(2);
VectorFloat likelihoods;
float r,g,b,a;
float maximumLikelihood;
for(unsigned int j=0; j<cols; j++){
for(unsigned int i=0; i<rows; i++){
featureVector[0] = i/double(rows);
featureVector[1] = j/double(cols);
if( pipeline.predict( featureVector ) ){
classLabel = pipeline.getPredictedClassLabel();
maximumLikelihood = pipeline.getMaximumLikelihood();
likelihoods = pipeline.getClassLikelihoods();
switch( classLabel ){
case 1:
r = 1.0;
g = 0.0;
b = 0.0;
a = maximumLikelihood;
break;
case 2:
r = 0.0;
g = 1.0;
b = 0.0;
a = maximumLikelihood;
break;
case 3:
r = 0.0;
g = 0.0;
b = 1.0;
a = maximumLikelihood;
break;
break;
default:
r = 0;
g = 0;
b = 0;
a = 1;
break;
}
pixelData[ index++ ] = r;
pixelData[ index++ ] = g;
pixelData[ index++ ] = b;
pixelData[ index++ ] = a;
}
}
}
pixels.setFromExternalPixels(&pixelData[0],rows,cols,OF_PIXELS_RGBA);
if(!texture.isAllocated()){
texture.allocate( pixels, false );
texture.setRGToRGBASwizzles(true);
}
texture.loadData( pixels );
texture.setTextureMinMagFilter( GL_LINEAR, GL_LINEAR );
}
}
SaveResult write_bmp(const FilePath& filePath,
const Bitmap& bmp,
BitmapQuality quality)
{
BinaryWriter out(filePath);
if (!out.good()){
return SaveResult::SaveFailed(error_open_file_write(filePath));
}
const auto bitsPerPixel = bits_per_pixel(quality);
const IntSize size(bmp.GetSize());
const int rowStride = bmp_row_stride(bitsPerPixel, size.w);
switch(quality){
// Note: No default, to ensure warning if unhandled enum value
case BitmapQuality::COLOR_8BIT:
{
const auto pixelData = quantized(bmp, Dithering::ON);
PaletteColors paletteColors(pixelData.palette.size());
write_struct(out,
create_bitmap_file_header(paletteColors, rowStride, size.h));
write_struct(out,
create_bitmap_info_header_8bipp(bmp.GetSize(),
default_DPI(),
PaletteColors(pixelData.palette.size()),
false));
write_8bipp_BI_RGB(out, pixelData);
return SaveResult::SaveSuccessful();
}
case BitmapQuality::GRAY_8BIT:
{
MappedColors pixelData(desaturate_AlphaMap(bmp), grayscale_color_table());
PaletteColors paletteColors(pixelData.palette.size());
write_struct(out,
create_bitmap_file_header(paletteColors, rowStride, size.h));
write_struct(out,
create_bitmap_info_header_8bipp(bmp.GetSize(),
default_DPI(),
PaletteColors(pixelData.palette.size()),
false));
write_8bipp_BI_RGB(out, pixelData);
return SaveResult::SaveSuccessful();
}
case BitmapQuality::COLOR_24BIT:
{
write_struct(out,
create_bitmap_file_header(PaletteColors(0), rowStride, size.h));
write_struct(out,
create_bitmap_info_header_24bipp(bmp.GetSize(),
default_DPI(),
false));
write_24bipp_BI_RGB(out, bmp);
return SaveResult::SaveSuccessful();
}
}
assert(false);
return SaveResult::SaveFailed(utf8_string("Internal error in save_bitmap"));
}
/**
* Retrieve the statistics based on the box size
* and point on the cube.
*
* @param p
*/
void StatisticsTool::getStatistics(QPoint p) {
MdiCubeViewport *cvp = cubeViewport();
if(cvp == NULL) return;
double sample, line;
cvp->viewportToCube(p.x(), p.y(), sample, line);
// If we are outside of the cube, do nothing
if((sample < 0.5) || (line < 0.5) ||
(sample > cvp->cubeSamples() + 0.5) || (line > cvp->cubeLines() + 0.5)) {
return;
}
int isamp = (int)(sample + 0.5);
int iline = (int)(line + 0.5);
Statistics stats;
Brick *brick = new Brick(1, 1, 1, cvp->cube()->pixelType());
QVector<QVector<double> > pixelData(p_boxLines, QVector<double>(p_boxSamps, Null));
double lineDiff = p_boxLines / 2.0;
double sampDiff = p_boxSamps / 2.0;
p_ulSamp = isamp - (int)floor(sampDiff);
p_ulLine = iline - (int)floor(lineDiff);
int x, y;
y = p_ulLine;
for(int i = 0; i < p_boxLines; i++) {
x = p_ulSamp;
if(y < 1 || y > cvp->cubeLines()) {
y++;
continue;
}
for(int j = 0; j < p_boxSamps; j++) {
if(x < 1 || x > cvp->cubeSamples()) {
x++;
continue;
}
brick->SetBasePosition(x, y, cvp->grayBand());
cvp->cube()->read(*brick);
stats.AddData(brick->at(0));
pixelData[i][j] = brick->at(0);
x++;
}
y++;
}
p_visualDisplay->setPixelData(pixelData, p_ulSamp, p_ulLine);
if (stats.ValidPixels()) {
p_minLabel->setText(QString("Minimum: %1").arg(stats.Minimum()));
p_maxLabel->setText(QString("Maximum: %1").arg(stats.Maximum()));
p_avgLabel->setText(QString("Average: %1").arg(stats.Average()));
p_stdevLabel->setText(QString("Standard Dev: %1").arg(stats.StandardDeviation(), 0, 'f', 6));
}
else {
p_minLabel->setText(QString("Minimum: n/a"));
p_maxLabel->setText(QString("Maximum: n/a"));
p_avgLabel->setText(QString("Average: n/a"));
p_stdevLabel->setText(QString("Standard Dev: n/a"));
}
p_set = true;
resizeScrollbars();
}
