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added comments; added Google formatting style

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Katarzyna Miernikiewicz 2020-08-14 10:38:27 +00:00
parent 73e6a27b14
commit 5598690320
4 changed files with 401 additions and 369 deletions
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2
oss-internship-2020/openjpeg/examples/CMakeLists.txt
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@ -12,6 +12,8 @@
# See the License for the specific language governing permissions and # See the License for the specific language governing permissions and
# limitations under the License. # limitations under the License.
# copy of one of the converting functions
# put here to omit the library's complex
add_library(convert_helper STATIC add_library(convert_helper STATIC
convert_helper.h convert_helper.h
convert_helper.cc convert_helper.cc

589
oss-internship-2020/openjpeg/examples/convert_helper.cc
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@ -1,311 +1,342 @@
/*
* The copyright in this software is being made available under the 2-clauses
* BSD License, included below. This software may be subject to other third
* party and contributor rights, including patent rights, and no such rights
* are granted under this license.
*
* Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
* Copyright (c) 2002-2014, Professor Benoit Macq
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2007, Francois-Olivier Devaux
* Copyright (c) 2003-2014, Antonin Descampe
* Copyright (c) 2005, Herve Drolon, FreeImage Team
* Copyright (c) 2006-2007, Parvatha Elangovan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
// copies of a few library tools // copies of a few library tools
#include "convert_helper.h" #include "convert_helper.h"
const char* opj_version(void) const char *opj_version(void) { return "2.3.1"; }
{
return "2.3.1"; static int are_comps_similar(opj_image_t *image) {
unsigned int i;
for (i = 1; i < image->numcomps; i++) {
if (image->comps[0].dx != image->comps[i].dx ||
image->comps[0].dy != image->comps[i].dy ||
(i <= 2 && (image->comps[0].prec != image->comps[i].prec ||
image->comps[0].sgnd != image->comps[i].sgnd))) {
return OPJ_FALSE;
}
}
return OPJ_TRUE;
} }
static int are_comps_similar(opj_image_t * image) int imagetopnm(opj_image_t *image, const char *outfile, int force_split) {
{ int *red, *green, *blue, *alpha;
unsigned int i; int wr, hr, max;
for (i = 1; i < image->numcomps; i++) { int i;
if (image->comps[0].dx != image->comps[i].dx || unsigned int compno, ncomp;
image->comps[0].dy != image->comps[i].dy || int adjustR, adjustG, adjustB, adjustA;
(i <= 2 && int fails, two, want_gray, has_alpha, triple;
(image->comps[0].prec != image->comps[i].prec || int prec, v;
image->comps[0].sgnd != image->comps[i].sgnd))) { FILE *fdest = NULL;
return OPJ_FALSE; const char *tmp = outfile;
char *destname;
alpha = NULL;
if ((prec = (int)image->comps[0].prec) > 16) {
fprintf(stderr,
"%s:%d:imagetopnm\n\tprecision %d is larger than 16"
"\n\t: refused.\n",
__FILE__, __LINE__, prec);
return 1;
}
two = has_alpha = 0;
fails = 1;
ncomp = image->numcomps;
while (*tmp) {
++tmp;
}
tmp -= 2;
want_gray = (*tmp == 'g' || *tmp == 'G');
ncomp = image->numcomps;
if (want_gray) {
ncomp = 1;
}
if ((force_split == 0) && ncomp >= 2 && are_comps_similar(image)) {
fdest = fopen(outfile, "wb");
if (!fdest) {
fprintf(stderr, "ERROR -> failed to open %s for writing\n", outfile);
return fails;
}
two = (prec > 8);
triple = (ncomp > 2);
wr = (int)image->comps[0].w;
hr = (int)image->comps[0].h;
max = (1 << prec) - 1;
has_alpha = (ncomp == 4 || ncomp == 2);
red = image->comps[0].data;
if (red == NULL) {
fprintf(stderr, "imagetopnm: planes[%d] == NULL.\n", 0);
fprintf(stderr, "\tAborting\n");
fclose(fdest);
return fails;
}
if (triple) {
green = image->comps[1].data;
blue = image->comps[2].data;
for (i = 1; i <= 2; i++) {
if (image->comps[i].data == NULL) {
fprintf(stderr, "imagetopnm: planes[%d] == NULL.\n", i);
fprintf(stderr, "\tAborting\n");
fclose(fdest);
return fails;
} }
} }
return OPJ_TRUE; } else {
} green = blue = NULL;
int imagetopnm(opj_image_t * image, const char *outfile, int force_split)
{
int *red, *green, *blue, *alpha;
int wr, hr, max;
int i;
unsigned int compno, ncomp;
int adjustR, adjustG, adjustB, adjustA;
int fails, two, want_gray, has_alpha, triple;
int prec, v;
FILE *fdest = NULL;
const char *tmp = outfile;
char *destname;
alpha = NULL;
if ((prec = (int)image->comps[0].prec) > 16) {
fprintf(stderr, "%s:%d:imagetopnm\n\tprecision %d is larger than 16"
"\n\t: refused.\n", __FILE__, __LINE__, prec);
return 1;
} }
two = has_alpha = 0; if (has_alpha) {
fails = 1; const char *tt = (triple ? "RGB_ALPHA" : "GRAYSCALE_ALPHA");
ncomp = image->numcomps;
while (*tmp) { fprintf(fdest,
++tmp; "P7\n# OpenJPEG-%s\nWIDTH %d\nHEIGHT %d\nDEPTH %u\n"
"MAXVAL %d\nTUPLTYPE %s\nENDHDR\n",
opj_version(), wr, hr, ncomp, max, tt);
alpha = image->comps[ncomp - 1].data;
adjustA = (image->comps[ncomp - 1].sgnd
? 1 << (image->comps[ncomp - 1].prec - 1)
: 0);
} else {
fprintf(fdest, "P6\n# OpenJPEG-%s\n%d %d\n%d\n", opj_version(), wr, hr,
max);
adjustA = 0;
} }
tmp -= 2; adjustR = (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0);
want_gray = (*tmp == 'g' || *tmp == 'G');
ncomp = image->numcomps;
if (want_gray) { if (triple) {
ncomp = 1; adjustG = (image->comps[1].sgnd ? 1 << (image->comps[1].prec - 1) : 0);
adjustB = (image->comps[2].sgnd ? 1 << (image->comps[2].prec - 1) : 0);
} else {
adjustG = adjustB = 0;
} }
if ((force_split == 0) && ncomp >= 2 && for (i = 0; i < wr * hr; ++i) {
are_comps_similar(image)) { if (two) {
fdest = fopen(outfile, "wb"); v = *red + adjustR;
++red;
if (!fdest) { if (v > 65535) {
fprintf(stderr, "ERROR -> failed to open %s for writing\n", outfile); v = 65535;
return fails; } else if (v < 0) {
v = 0;
} }
two = (prec > 8);
triple = (ncomp > 2);
wr = (int)image->comps[0].w;
hr = (int)image->comps[0].h;
max = (1 << prec) - 1;
has_alpha = (ncomp == 4 || ncomp == 2);
red = image->comps[0].data; /* netpbm: */
if (red == NULL) { fprintf(fdest, "%c%c", (unsigned char)(v >> 8), (unsigned char)v);
fprintf(stderr,
"imagetopnm: planes[%d] == NULL.\n", 0);
fprintf(stderr, "\tAborting\n");
fclose(fdest);
return fails;
}
if (triple) { if (triple) {
green = image->comps[1].data; v = *green + adjustG;
blue = image->comps[2].data; ++green;
for (i = 1; i <= 2; i++) { if (v > 65535) {
if (image->comps[i].data == NULL) { v = 65535;
fprintf(stderr, } else if (v < 0) {
"imagetopnm: planes[%d] == NULL.\n", i); v = 0;
fprintf(stderr, "\tAborting\n"); }
fclose(fdest);
return fails; /* netpbm: */
} fprintf(fdest, "%c%c", (unsigned char)(v >> 8), (unsigned char)v);
}
} else { v = *blue + adjustB;
green = blue = NULL; ++blue;
} if (v > 65535) {
v = 65535;
} else if (v < 0) {
v = 0;
}
/* netpbm: */
fprintf(fdest, "%c%c", (unsigned char)(v >> 8), (unsigned char)v);
} /* if(triple) */
if (has_alpha) { if (has_alpha) {
const char *tt = (triple ? "RGB_ALPHA" : "GRAYSCALE_ALPHA"); v = *alpha + adjustA;
++alpha;
if (v > 65535) {
v = 65535;
} else if (v < 0) {
v = 0;
}
fprintf(fdest, "P7\n# OpenJPEG-%s\nWIDTH %d\nHEIGHT %d\nDEPTH %u\n" /* netpbm: */
"MAXVAL %d\nTUPLTYPE %s\nENDHDR\n", opj_version(), fprintf(fdest, "%c%c", (unsigned char)(v >> 8), (unsigned char)v);
wr, hr, ncomp, max, tt);
alpha = image->comps[ncomp - 1].data;
adjustA = (image->comps[ncomp - 1].sgnd ?
1 << (image->comps[ncomp - 1].prec - 1) : 0);
} else {
fprintf(fdest, "P6\n# OpenJPEG-%s\n%d %d\n%d\n",
opj_version(), wr, hr, max);
adjustA = 0;
} }
adjustR = (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0); continue;
if (triple) { } /* if(two) */
adjustG = (image->comps[1].sgnd ? 1 << (image->comps[1].prec - 1) : 0);
adjustB = (image->comps[2].sgnd ? 1 << (image->comps[2].prec - 1) : 0); /* prec <= 8: */
} else { v = *red++;
adjustG = adjustB = 0; if (v > 255) {
v = 255;
} else if (v < 0) {
v = 0;
}
fprintf(fdest, "%c", (unsigned char)v);
if (triple) {
v = *green++;
if (v > 255) {
v = 255;
} else if (v < 0) {
v = 0;
} }
for (i = 0; i < wr * hr; ++i) { fprintf(fdest, "%c", (unsigned char)v);
if (two) { v = *blue++;
v = *red + adjustR; if (v > 255) {
++red; v = 255;
if (v > 65535) { } else if (v < 0) {
v = 65535; v = 0;
} else if (v < 0) {
v = 0;
}
/* netpbm: */
fprintf(fdest, "%c%c", (unsigned char)(v >> 8), (unsigned char)v);
if (triple) {
v = *green + adjustG;
++green;
if (v > 65535) {
v = 65535;
} else if (v < 0) {
v = 0;
}
/* netpbm: */
fprintf(fdest, "%c%c", (unsigned char)(v >> 8), (unsigned char)v);
v = *blue + adjustB;
++blue;
if (v > 65535) {
v = 65535;
} else if (v < 0) {
v = 0;
}
/* netpbm: */
fprintf(fdest, "%c%c", (unsigned char)(v >> 8), (unsigned char)v);
}/* if(triple) */
if (has_alpha) {
v = *alpha + adjustA;
++alpha;
if (v > 65535) {
v = 65535;
} else if (v < 0) {
v = 0;
}
/* netpbm: */
fprintf(fdest, "%c%c", (unsigned char)(v >> 8), (unsigned char)v);
}
continue;
} /* if(two) */
/* prec <= 8: */
v = *red++;
if (v > 255) {
v = 255;
} else if (v < 0) {
v = 0;
}
fprintf(fdest, "%c", (unsigned char)v);
if (triple) {
v = *green++;
if (v > 255) {
v = 255;
} else if (v < 0) {
v = 0;
}
fprintf(fdest, "%c", (unsigned char)v);
v = *blue++;
if (v > 255) {
v = 255;
} else if (v < 0) {
v = 0;
}
fprintf(fdest, "%c", (unsigned char)v);
}
if (has_alpha) {
v = *alpha++;
if (v > 255) {
v = 255;
} else if (v < 0) {
v = 0;
}
fprintf(fdest, "%c", (unsigned char)v);
}
} /* for(i */
fclose(fdest);
return 0;
}
/* YUV or MONO: */
if (image->numcomps > ncomp) {
fprintf(stderr, "WARNING -> [PGM file] Only the first component\n");
fprintf(stderr, " is written to the file\n");
}
destname = (char*)malloc(strlen(outfile) + 8);
if (destname == NULL) {
fprintf(stderr, "imagetopnm: memory out\n");
return 1;
}
for (compno = 0; compno < ncomp; compno++) {
if (ncomp > 1) {
/*sprintf(destname, "%d.%s", compno, outfile);*/
const size_t olen = strlen(outfile);
const size_t dotpos = olen - 4;
strncpy(destname, outfile, dotpos);
sprintf(destname + dotpos, "_%u.pgm", compno);
} else {
sprintf(destname, "%s", outfile);
} }
fdest = fopen(destname, "wb"); fprintf(fdest, "%c", (unsigned char)v);
if (!fdest) { }
fprintf(stderr, "ERROR -> failed to open %s for writing\n", destname); if (has_alpha) {
free(destname); v = *alpha++;
return 1; if (v > 255) {
} v = 255;
wr = (int)image->comps[compno].w; } else if (v < 0) {
hr = (int)image->comps[compno].h; v = 0;
prec = (int)image->comps[compno].prec;
max = (1 << prec) - 1;
fprintf(fdest, "P5\n#OpenJPEG-%s\n%d %d\n%d\n",
opj_version(), wr, hr, max);
red = image->comps[compno].data;
if (!red) {
fclose(fdest);
continue;
} }
adjustR = fprintf(fdest, "%c", (unsigned char)v);
(image->comps[compno].sgnd ? 1 << (image->comps[compno].prec - 1) : 0); }
} /* for(i */
if (prec > 8) {
for (i = 0; i < wr * hr; i++) {
v = *red + adjustR;
++red;
if (v > 65535) {
v = 65535;
} else if (v < 0) {
v = 0;
}
/* netpbm: */
fprintf(fdest, "%c%c", (unsigned char)(v >> 8), (unsigned char)v);
if (has_alpha) {
v = *alpha++;
if (v > 65535) {
v = 65535;
} else if (v < 0) {
v = 0;
}
/* netpbm: */
fprintf(fdest, "%c%c", (unsigned char)(v >> 8), (unsigned char)v);
}
}/* for(i */
} else { /* prec <= 8 */
for (i = 0; i < wr * hr; ++i) {
v = *red + adjustR;
++red;
if (v > 255) {
v = 255;
} else if (v < 0) {
v = 0;
}
fprintf(fdest, "%c", (unsigned char)v);
}
}
fclose(fdest);
} /* for (compno */
free(destname);
fclose(fdest);
return 0; return 0;
}/* imagetopnm() */ }
/* YUV or MONO: */
if (image->numcomps > ncomp) {
fprintf(stderr, "WARNING -> [PGM file] Only the first component\n");
fprintf(stderr, " is written to the file\n");
}
destname = (char *)malloc(strlen(outfile) + 8);
if (destname == NULL) {
fprintf(stderr, "imagetopnm: memory out\n");
return 1;
}
for (compno = 0; compno < ncomp; compno++) {
if (ncomp > 1) {
/*sprintf(destname, "%d.%s", compno, outfile);*/
const size_t olen = strlen(outfile);
const size_t dotpos = olen - 4;
strncpy(destname, outfile, dotpos);
sprintf(destname + dotpos, "_%u.pgm", compno);
} else {
sprintf(destname, "%s", outfile);
}
fdest = fopen(destname, "wb");
if (!fdest) {
fprintf(stderr, "ERROR -> failed to open %s for writing\n", destname);
free(destname);
return 1;
}
wr = (int)image->comps[compno].w;
hr = (int)image->comps[compno].h;
prec = (int)image->comps[compno].prec;
max = (1 << prec) - 1;
fprintf(fdest, "P5\n#OpenJPEG-%s\n%d %d\n%d\n", opj_version(), wr, hr, max);
red = image->comps[compno].data;
if (!red) {
fclose(fdest);
continue;
}
adjustR =
(image->comps[compno].sgnd ? 1 << (image->comps[compno].prec - 1) : 0);
if (prec > 8) {
for (i = 0; i < wr * hr; i++) {
v = *red + adjustR;
++red;
if (v > 65535) {
v = 65535;
} else if (v < 0) {
v = 0;
}
/* netpbm: */
fprintf(fdest, "%c%c", (unsigned char)(v >> 8), (unsigned char)v);
if (has_alpha) {
v = *alpha++;
if (v > 65535) {
v = 65535;
} else if (v < 0) {
v = 0;
}
/* netpbm: */
fprintf(fdest, "%c%c", (unsigned char)(v >> 8), (unsigned char)v);
}
} /* for(i */
} else { /* prec <= 8 */
for (i = 0; i < wr * hr; ++i) {
v = *red + adjustR;
++red;
if (v > 255) {
v = 255;
} else if (v < 0) {
v = 0;
}
fprintf(fdest, "%c", (unsigned char)v);
}
}
fclose(fdest);
} /* for (compno */
free(destname);
return 0;
} /* imagetopnm() */

7
oss-internship-2020/openjpeg/examples/convert_helper.h
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@ -1,8 +1,11 @@
// imagetopnm and the two functions it calls internaly are copied from the
// library's tools; from openjpeg/src/bin/jp2/convert.c
#include "openjp2_sapi.sapi.h" #include "openjp2_sapi.sapi.h"
#define OPJ_TRUE 1 #define OPJ_TRUE 1
#define OPJ_FALSE 0 #define OPJ_FALSE 0
const char* opj_version(void); const char* opj_version(void);
int imagetopnm(opj_image_t * image, const char *outfile, int force_split); static int are_comps_similar(opj_image_t* image);
static int are_comps_similar(opj_image_t * image); int imagetopnm(opj_image_t* image, const char* outfile, int force_split);

172
oss-internship-2020/openjpeg/examples/decompress_example.cc
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@ -12,19 +12,16 @@
// See the License for the specific language governing permissions and // See the License for the specific language governing permissions and
// limitations under the License. // limitations under the License.
// Perform decompression from *.jp2 to *.pnm format
// Perform decompression from *.jp2 to *.pnm format
#include <libgen.h> #include <libgen.h>
#include <syscall.h> #include <syscall.h>
#include <iostream>
#include <cstdlib>
#include <cassert> #include <cassert>
#include <cstdlib>
#include <iostream>
#include "convert_helper.h" #include "convert_helper.h"
#include "openjp2_sapi.sapi.h" #include "openjp2_sapi.sapi.h"
#include "sandboxed_api/util/flag.h" #include "sandboxed_api/util/flag.h"
@ -33,8 +30,7 @@ class Opj_image_t : public sapi::v::Struct<opj_image_t> {};
class Openjp2SapiSandbox : public Openjp2Sandbox { class Openjp2SapiSandbox : public Openjp2Sandbox {
public: public:
Openjp2SapiSandbox(const std::string& in_file) Openjp2SapiSandbox(const std::string& in_file) : in_file_(in_file) {}
: in_file_(in_file) {}
std::unique_ptr<sandbox2::Policy> ModifyPolicy( std::unique_ptr<sandbox2::Policy> ModifyPolicy(
sandbox2::PolicyBuilder*) override { sandbox2::PolicyBuilder*) override {
@ -47,9 +43,9 @@ class Openjp2SapiSandbox : public Openjp2Sandbox {
.AllowSystemMalloc() .AllowSystemMalloc()
.AllowExit() .AllowExit()
.AllowSyscalls({ .AllowSyscalls({
__NR_futex, __NR_futex,
__NR_close, __NR_close,
__NR_lseek, __NR_lseek,
}) })
.AddFile(in_file_) .AddFile(in_file_)
.BuildOrDie(); .BuildOrDie();
@ -59,105 +55,105 @@ class Openjp2SapiSandbox : public Openjp2Sandbox {
std::string in_file_; std::string in_file_;
}; };
int main(int argc, char* argv[]) { int main(int argc, char* argv[]) {
gflags::ParseCommandLineFlags(&argc, &argv, true); gflags::ParseCommandLineFlags(&argc, &argv, true);
if (argc != 3) { if (argc != 3) {
std::cerr << "usage: " std::cerr << "usage: " << basename(argv[0]) << " absolute/path/to/INPUT.jp2"
<< basename(argv[0]) << " absolute/path/to/OUTPUT.pnm\n";
<< " absolute/path/to/INPUT.jp2" return EXIT_FAILURE;
<< " absolute/path/to/OUTPUT.pnm\n"; }
return EXIT_FAILURE;
}
std::string in_file(argv[1]); std::string in_file(argv[1]);
Openjp2SapiSandbox sandbox(in_file); // initialize sandbox
absl::Status status = sandbox.Init(); Openjp2SapiSandbox sandbox(in_file);
assert(status.ok()); absl::Status status = sandbox.Init();
assert(status.ok());
Openjp2Api api(&sandbox); Openjp2Api api(&sandbox);
sapi::v::ConstCStr in_file_v(in_file.c_str()); sapi::v::ConstCStr in_file_v(in_file.c_str());
sapi::StatusOr<opj_stream_t*> stream_status // initialize library's main data-holders
= api.opj_stream_create_default_file_stream(in_file_v.PtrBefore(), 1); sapi::StatusOr<opj_stream_t*> stream_status =
assert(stream_status.ok()); api.opj_stream_create_default_file_stream(in_file_v.PtrBefore(), 1);
void* stream_status_value = stream_status.value(); assert(stream_status.ok());
sapi::v::RemotePtr stream_pointer(stream_status_value); void* stream_status_value = stream_status.value();
sapi::v::RemotePtr stream_pointer(stream_status_value);
sapi::StatusOr<opj_codec_t*> codec_status sapi::StatusOr<opj_codec_t*> codec_status =
= api.opj_create_decompress(OPJ_CODEC_JP2); api.opj_create_decompress(OPJ_CODEC_JP2);
assert(codec_status.ok()); assert(codec_status.ok());
void* codec_status_value = codec_status.value(); void* codec_status_value = codec_status.value();
sapi::v::RemotePtr codec_pointer(codec_status_value); sapi::v::RemotePtr codec_pointer(codec_status_value);
Parameters parameters; Parameters parameters;
status = api.opj_set_default_decoder_parameters(parameters.PtrBoth()); status = api.opj_set_default_decoder_parameters(parameters.PtrBoth());
assert(status.ok()); assert(status.ok());
sapi::StatusOr<OPJ_BOOL> bool_status sapi::StatusOr<OPJ_BOOL> bool_status =
= api.opj_setup_decoder(&codec_pointer, parameters.PtrBefore()); api.opj_setup_decoder(&codec_pointer, parameters.PtrBefore());
assert(bool_status.ok()); assert(bool_status.ok());
assert(bool_status.value()); assert(bool_status.value());
sapi::v::GenericPtr image_pointer; // start reading image from the input file
bool_status = api.opj_read_header(&stream_pointer, sapi::v::GenericPtr image_pointer;
&codec_pointer, bool_status = api.opj_read_header(&stream_pointer, &codec_pointer,
image_pointer.PtrAfter()); image_pointer.PtrAfter());
assert(bool_status.ok()); assert(bool_status.ok());
assert(bool_status.value()); assert(bool_status.value());
Opj_image_t image; Opj_image_t image;
image.SetRemote((void*)image_pointer.GetValue()); image.SetRemote((void*)image_pointer.GetValue());
assert(sandbox.TransferFromSandboxee(&image).ok()); assert(sandbox.TransferFromSandboxee(&image).ok());
bool_status = api.opj_decode(&codec_pointer, bool_status = api.opj_decode(&codec_pointer, &stream_pointer,
&stream_pointer, (sapi::v::Ptr*)&image_pointer);
(sapi::v::Ptr*)&image_pointer); assert(bool_status.ok());
assert(bool_status.ok()); assert(bool_status.value());
assert(bool_status.value());
bool_status = api.opj_end_decompress(&codec_pointer, &stream_pointer); bool_status = api.opj_end_decompress(&codec_pointer, &stream_pointer);
assert(bool_status.ok()); assert(bool_status.ok());
assert(bool_status.value()); assert(bool_status.value());
status = api.opj_stream_destroy(&stream_pointer); int components = image.data().numcomps;
assert(status.ok());
int components = image.data().numcomps; // transfer the read data to the main process
sapi::v::Array<opj_image_comp_t> image_components(components);
image_components.SetRemote(image.data().comps);
assert(sandbox.TransferFromSandboxee(&image_components).ok());
sapi::v::Array<opj_image_comp_t> image_components(components); image.mutable_data()->comps = (opj_image_comp_t*)image_components.GetLocal();
image_components.SetRemote(image.data().comps);
assert(sandbox.TransferFromSandboxee(&image_components).ok());
image.mutable_data()->comps int width = (int)image.data().comps[0].w;
= (opj_image_comp_t*)image_components.GetLocal(); int height = (int)image.data().comps[0].h;
int width = (int)image.data().comps[0].w; OPJ_INT32 data[components][width * height];
int height = (int)image.data().comps[0].h; sapi::v::Array<OPJ_INT32> image_components_data(width * height);
int data[components][width * height]; for (int i = 0; i < components; i++) {
sapi::v::Array<int> image_components_data(width * height); image_components_data.SetRemote(image.data().comps[i].data);
assert(sandbox.TransferFromSandboxee(&image_components_data).ok());
for (int j = 0; j < width * height; j++) {
data[i][j] = image_components_data[j];
}
image_components[i].data = data[i];
}
for (int i = 0; i < components; i++) { // convert the image to the desired format and save it to the file
image_components_data.SetRemote(image.data().comps[i].data); int error = imagetopnm((opj_image_t*)image.GetLocal(), argv[2], 0);
assert(sandbox.TransferFromSandboxee(&image_components_data).ok()); assert(error == 0);
for (int j = 0; j < width * height; j++) {
data[i][j] = image_components_data[j];
}
image_components[i].data = data[i];
}
int error = imagetopnm((opj_image_t*)image.GetLocal(), argv[2], 0); // cleanup
assert(error == 0); sapi::v::RemotePtr remote_image_pointer(image.GetRemote());
status = api.opj_image_destroy(&remote_image_pointer);
assert(status.ok());
status = api.opj_destroy_codec(&codec_pointer); status = api.opj_stream_destroy(&stream_pointer);
assert(status.ok()); assert(status.ok());
sapi::v::RemotePtr remote_image_pointer(image.GetRemote()); status = api.opj_destroy_codec(&codec_pointer);
status = api.opj_image_destroy(&remote_image_pointer); assert(status.ok());
assert(status.ok());
return EXIT_SUCCESS; return EXIT_SUCCESS;
} }