-static
-boost::shared_ptr<Image>
-read_file (string file)
-{
- Magick::Image magick_image (file.c_str ());
- dcp::Size size (magick_image.columns(), magick_image.rows());
-
- boost::shared_ptr<Image> image (new Image (PIX_FMT_RGB24, size, true));
-
- using namespace MagickCore;
-
- uint8_t* p = image->data()[0];
- for (int y = 0; y < size.height; ++y) {
- uint8_t* q = p;
- for (int x = 0; x < size.width; ++x) {
- Magick::Color c = magick_image.pixelColor (x, y);
- *q++ = c.redQuantum() * 255 / QuantumRange;
- *q++ = c.greenQuantum() * 255 / QuantumRange;
- *q++ = c.blueQuantum() * 255 / QuantumRange;
- }
- p += image->stride()[0];
- }
-
- return image;
-}
-
-static
-void
-write_file (shared_ptr<Image> image, string file)
-{
- using namespace MagickCore;
-
- Magick::Image magick_image (Magick::Geometry (image->size().width, image->size().height), Magick::Color (0, 0, 0));
- uint8_t*p = image->data()[0];
- for (int y = 0; y < image->size().height; ++y) {
- uint8_t* q = p;
- for (int x = 0; x < image->size().width; ++x) {
- Magick::Color c (q[0] * QuantumRange / 256, q[1] * QuantumRange / 256, q[2] * QuantumRange / 256);
- magick_image.pixelColor (x, y, c);
- q += 3;
- }
- p += image->stride()[0];
- }
-
- magick_image.write (file.c_str ());
-}
-