bool wxBitmapDataObject::SetData(size_t size, const void *buf)
{
Clear();
#if wxUSE_LIBPNG
m_pngSize = size;
m_pngData = malloc(m_pngSize);
memcpy( m_pngData, buf, m_pngSize );
wxMemoryInputStream mstream( (char*) m_pngData, m_pngSize );
wxImage image;
wxPNGHandler handler;
if ( !handler.LoadFile( &image, mstream ) )
{
return false;
}
m_bitmap = image;
return m_bitmap.IsOk();
#else
return false;
#endif
}
static void test_buffer(skiatest::Reporter* reporter) {
SkRandom rand;
SkAutoMalloc am(MAX_SIZE * 2);
char* storage = (char*)am.get();
char* storage2 = storage + MAX_SIZE;
random_fill(rand, storage, MAX_SIZE);
for (int sizeTimes = 0; sizeTimes < 100; sizeTimes++) {
int size = rand.nextU() % MAX_SIZE;
if (size == 0) {
size = MAX_SIZE;
}
for (int times = 0; times < 100; times++) {
int bufferSize = 1 + (rand.nextU() & 0xFFFF);
SkMemoryStream mstream(storage, size);
SkBufferStream bstream(&mstream, bufferSize);
int bytesRead = 0;
while (bytesRead < size) {
int s = 17 + (rand.nextU() & 0xFFFF);
int ss = bstream.read(storage2, s);
REPORTER_ASSERT(reporter, ss > 0 && ss <= s);
REPORTER_ASSERT(reporter, bytesRead + ss <= size);
REPORTER_ASSERT(reporter,
memcmp(storage + bytesRead, storage2, ss) == 0);
bytesRead += ss;
}
REPORTER_ASSERT(reporter, bytesRead == size);
}
}
}
JsonDocument JsonParseBytes(const char* _bytes, size_t _length, const char** _error, size_t* _errorOffset) {
JsonDocument document;
rapidjson::MemoryStream mstream(_bytes, _length);
rapidjson::EncodedInputStream<rapidjson::UTF8<char>, rapidjson::MemoryStream> istream(mstream);
document.ParseStream(istream);
*_error = nullptr;
*_errorOffset = 0;
if (document.HasParseError()) {
*_error = rapidjson::GetParseError_En(document.GetParseError());
*_errorOffset = document.GetErrorOffset();
}
return document;
}
void wxBitmapDataObject::DoConvertToPng()
{
#if wxUSE_LIBPNG
if (!m_bitmap.IsOk())
return;
wxImage image = m_bitmap.ConvertToImage();
wxPNGHandler handler;
wxCountingOutputStream count;
handler.SaveFile( &image, count );
m_pngSize = count.GetSize() + 100; // sometimes the size seems to vary ???
m_pngData = malloc(m_pngSize);
wxMemoryOutputStream mstream( (char*) m_pngData, m_pngSize );
handler.SaveFile( &image, mstream );
#endif
}
