Method readImage

tools/imageio/imageinput.cc:310–328

@brief Read an entire image into contiguous memory performing conversions to @a format. Default implementation for derived classes. @sa readScanline() for support conversions.

///
/// @sa readScanline() for support conversions.
void
ImageInput::readImage(void* pBuffer, size_t bufferByteCount,
                     uint32_t subimage, uint32_t miplevel,
                     const FormatDescriptor& format)
{
    const auto& targetFormat = format.isUnknown() ? spec().format() : format;
    size_t outScanlineByteCount
           = targetFormat.pixelByteCount() * spec().width();
    if (bufferByteCount < outScanlineByteCount * spec().height())
        throw buffer_too_small();

    uint8_t* pDst = static_cast<uint8_t*>(pBuffer);
    for (uint32_t y = 0; y < spec().height(); y++) {
        readScanline(pDst, bufferByteCount,
                     y, 0, subimage, miplevel, targetFormat);
        pDst += outScanlineByteCount;
        bufferByteCount -= outScanlineByteCount;
    }
}

void ImageInput::throwOnReadFailure()
{