/*
- Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2021 Carl Hetherington <cth@carlh.net>
This file is part of libdcp.
files in the program, then also delete it here.
*/
+
/** @file src/openjpeg_image.cc
- * @brief OpenJPEGImage class.
+ * @brief OpenJPEGImage class
*/
+
#include "openjpeg_image.h"
#include "dcp_assert.h"
#include <openjpeg.h>
#include <stdexcept>
+
using namespace dcp;
+
#ifdef LIBDCP_OPENJPEG1
#define OPJ_CLRSPC_SRGB CLRSPC_SRGB
#endif
-/** Construct an OpenJPEGImage, taking ownership of the opj_image_t */
+
OpenJPEGImage::OpenJPEGImage (opj_image_t* image)
: _opj_image (image)
{
DCP_ASSERT (_opj_image->numcomps == 3);
}
+
#ifdef LIBDCP_OPENJPEG1
typedef int32_t OPJ_INT32;
typedef uint8_t OPJ_BYTE;
#endif
+
OpenJPEGImage::OpenJPEGImage (OpenJPEGImage const & other)
{
- _opj_image = reinterpret_cast<opj_image_t*> (malloc (sizeof (opj_image_t)));
+ _opj_image = reinterpret_cast<opj_image_t*>(malloc(sizeof(opj_image_t)));
DCP_ASSERT (_opj_image);
memcpy (_opj_image, other._opj_image, sizeof (opj_image_t));
memcpy (_opj_image->icc_profile_buf, other._opj_image->icc_profile_buf, _opj_image->icc_profile_len);
}
-/** Construct a new OpenJPEGImage with undefined contents.
- * @param size Size for the frame in pixels.
- */
+
OpenJPEGImage::OpenJPEGImage (Size size)
+{
+ create (size);
+}
+
+
+OpenJPEGImage::OpenJPEGImage (uint8_t const * data_16, dcp::Size size, int stride)
+{
+ create (size);
+
+ int jn = 0;
+ for (int y = 0; y < size.height; ++y) {
+ uint16_t const * p = reinterpret_cast<uint16_t const *> (data_16 + y * stride);
+ for (int x = 0; x < size.width; ++x) {
+ /* Truncate 16-bit to 12-bit */
+ _opj_image->comps[0].data[jn] = *p++ >> 4;
+ _opj_image->comps[1].data[jn] = *p++ >> 4;
+ _opj_image->comps[2].data[jn] = *p++ >> 4;
+ ++jn;
+ }
+ }
+}
+
+
+void
+OpenJPEGImage::create (Size size)
{
opj_image_cmptparm_t cmptparm[3];
/* XXX: is this _SRGB right? */
_opj_image = opj_image_create (3, &cmptparm[0], OPJ_CLRSPC_SRGB);
- if (_opj_image == 0) {
+ if (_opj_image == nullptr) {
throw std::runtime_error ("could not create libopenjpeg image");
}
_opj_image->y1 = size.height;
}
-/** OpenJPEGImage destructor */
+
OpenJPEGImage::~OpenJPEGImage ()
{
opj_image_destroy (_opj_image);
}
-/** @param c Component index (0, 1 or 2)
- * @return Pointer to the data for component c.
- */
+
int *
OpenJPEGImage::data (int c) const
{
return _opj_image->comps[c].data;
}
-/** @return Size of the image in pixels */
+
dcp::Size
OpenJPEGImage::size () const
{
return dcp::Size (_opj_image->x1, _opj_image->y1);
}
+
int
OpenJPEGImage::precision (int component) const
{
return _opj_image->comps[component].prec;
}
+
+int
+OpenJPEGImage::factor (int component) const
+{
+ return _opj_image->comps[component].factor;
+}
+
+
bool
OpenJPEGImage::srgb () const
{