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Grok Compression
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code reformat
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196 files changed

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‎cmake/TestFileOffsetBits.c

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -6,5 +6,5 @@ int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 && LARGE_OFF_T % 2147483647
66

77
int main(int argc, char** argv)
88
{
9-
return 0;
9+
return 0;
1010
}

‎examples/codec/codec_compress.cpp

Lines changed: 148 additions & 149 deletions
Original file line numberDiff line numberDiff line change
@@ -27,163 +27,162 @@ const std::string dataRoot = GRK_DATA_ROOT;
2727

2828
int main([[maybe_unused]] int argc, [[maybe_unused]] char** argv)
2929
{
30-
int rc = 1;
31-
// perform two identical compressions
32-
for(uint32_t i = 0; i < 2; ++i)
33-
{
34-
const uint32_t dimX = 640;
35-
const uint32_t dimY = 480;
36-
const uint32_t numComps = 3;
37-
const uint32_t precision = 8;
38-
grk_image_comp* compParams = nullptr;
39-
grk_image* image = nullptr;
40-
grk_stream_params streamParams = {};
41-
bool inputFromImage = true;
42-
bool outputToBuffer = true;
43-
if(outputToBuffer)
30+
int rc = 1;
31+
// perform two identical compressions
32+
for(uint32_t i = 0; i < 2; ++i)
33+
{
34+
const uint32_t dimX = 640;
35+
const uint32_t dimY = 480;
36+
const uint32_t numComps = 3;
37+
const uint32_t precision = 8;
38+
grk_image_comp* compParams = nullptr;
39+
grk_image* image = nullptr;
40+
grk_stream_params streamParams = {};
41+
bool inputFromImage = true;
42+
bool outputToBuffer = true;
43+
if(outputToBuffer)
44+
{
45+
streamParams.buf_len = (size_t)numComps * (precision / 8) * dimX * dimY;
46+
streamParams.buf = new uint8_t[streamParams.buf_len];
47+
}
48+
std::vector<std::string> argString;
49+
std::vector<char*> args;
50+
std::string inputFile, outputFile;
51+
52+
if(inputFromImage)
53+
{
54+
// create blank image
55+
compParams = new grk_image_comp[numComps];
56+
for(uint32_t i = 0; i < numComps; ++i)
4457
{
45-
streamParams.buf_len = (size_t)numComps * (precision / 8) * dimX * dimY;
46-
streamParams.buf = new uint8_t[streamParams.buf_len];
58+
auto c = compParams + i;
59+
memset(c, 0, sizeof(grk_image_comp));
60+
c->w = dimX;
61+
c->h = dimY;
62+
c->dx = 1;
63+
c->dy = 1;
64+
c->prec = precision;
65+
c->sgnd = false;
4766
}
48-
std::vector<std::string> argString;
49-
std::vector<char*> args;
50-
std::string inputFile, outputFile;
67+
image = grk_image_new(numComps, compParams, GRK_CLRSPC_SRGB, true);
5168

52-
if(inputFromImage)
69+
// fill in component data
70+
// see grok.h header for full details of image structure
71+
for(uint16_t compno = 0; compno < image->numcomps; ++compno)
5372
{
54-
// create blank image
55-
compParams = new grk_image_comp[numComps];
56-
for(uint32_t i = 0; i < numComps; ++i)
57-
{
58-
auto c = compParams + i;
59-
memset(c, 0, sizeof(grk_image_comp));
60-
c->w = dimX;
61-
c->h = dimY;
62-
c->dx = 1;
63-
c->dy = 1;
64-
c->prec = precision;
65-
c->sgnd = false;
66-
}
67-
image = grk_image_new(numComps, compParams, GRK_CLRSPC_SRGB, true);
68-
69-
// fill in component data
70-
// see grok.h header for full details of image structure
71-
for(uint16_t compno = 0; compno < image->numcomps; ++compno)
72-
{
73-
auto comp = image->comps + compno;
74-
auto compWidth = comp->w;
75-
auto compHeight = comp->h;
76-
auto compData = comp->data;
77-
if(!compData)
78-
{
79-
fprintf(stderr, "Image has null data for component %d\n", compno);
80-
goto beach;
81-
}
82-
// fill in component data, taking component stride into account
83-
// Note: in this example, we just fill the buffer with a constant value whose precision
84-
// matches the precision specified above.
85-
// !! do not pass in data whose precision exceeds the precision specified above
86-
auto srcData = new int32_t[compWidth * compHeight];
87-
for(uint32_t i = 0; i < compWidth * compHeight; ++i)
88-
srcData[i] = 0xFF;
89-
auto srcPtr = srcData;
90-
for(uint32_t j = 0; j < compHeight; ++j)
91-
{
92-
memcpy(compData, srcPtr, compWidth * sizeof(int32_t));
93-
srcPtr += compWidth;
94-
compData += comp->stride;
95-
}
96-
delete[] srcData;
97-
}
73+
auto comp = image->comps + compno;
74+
auto compWidth = comp->w;
75+
auto compHeight = comp->h;
76+
auto compData = comp->data;
77+
if(!compData)
78+
{
79+
fprintf(stderr, "Image has null data for component %d\n", compno);
80+
goto beach;
81+
}
82+
// fill in component data, taking component stride into account
83+
// Note: in this example, we just fill the buffer with a constant value whose precision
84+
// matches the precision specified above.
85+
// !! do not pass in data whose precision exceeds the precision specified above
86+
auto srcData = new int32_t[compWidth * compHeight];
87+
for(uint32_t i = 0; i < compWidth * compHeight; ++i)
88+
srcData[i] = 0xFF;
89+
auto srcPtr = srcData;
90+
for(uint32_t j = 0; j < compHeight; ++j)
91+
{
92+
memcpy(compData, srcPtr, compWidth * sizeof(int32_t));
93+
srcPtr += compWidth;
94+
compData += comp->stride;
95+
}
96+
delete[] srcData;
9897
}
99-
100-
// 1. form vector of command line args
101-
102-
// first entry must always be the name of the program, as is
103-
// required by argv/argc variables in main method
104-
argString.push_back("codec_compress");
105-
106-
// verbose output
107-
argString.push_back("-v");
108-
109-
// a file can be passed in as a command line argument
110-
// example:
111-
// $ codec_compress foo.tif
112-
// otherwise a file from the Grok test suite, specified below, will be used.
113-
114-
inputFile = dataRoot + std::filesystem::path::preferred_separator + "input" +
115-
std::filesystem::path::preferred_separator + "nonregression" +
116-
std::filesystem::path::preferred_separator + "basn6a08.tif";
117-
outputFile = "basn6a08.jp2";
118-
if(argc > 1)
119-
{
120-
inputFile = argv[1];
121-
outputFile = inputFile + ".tif";
122-
}
123-
if(!inputFromImage)
124-
{
125-
argString.push_back("-i");
126-
argString.push_back(inputFile);
127-
}
128-
129-
if(outputToBuffer)
98+
}
99+
100+
// 1. form vector of command line args
101+
102+
// first entry must always be the name of the program, as is
103+
// required by argv/argc variables in main method
104+
argString.push_back("codec_compress");
105+
106+
// verbose output
107+
argString.push_back("-v");
108+
109+
// a file can be passed in as a command line argument
110+
// example:
111+
// $ codec_compress foo.tif
112+
// otherwise a file from the Grok test suite, specified below, will be used.
113+
114+
inputFile = dataRoot + std::filesystem::path::preferred_separator + "input" +
115+
std::filesystem::path::preferred_separator + "nonregression" +
116+
std::filesystem::path::preferred_separator + "basn6a08.tif";
117+
outputFile = "basn6a08.jp2";
118+
if(argc > 1)
119+
{
120+
inputFile = argv[1];
121+
outputFile = inputFile + ".tif";
122+
}
123+
if(!inputFromImage)
124+
{
125+
argString.push_back("-i");
126+
argString.push_back(inputFile);
127+
}
128+
129+
if(outputToBuffer)
130+
{
131+
argString.push_back("--out-fmt");
132+
argString.push_back("jp2");
133+
}
134+
else
135+
{
136+
argString.push_back("-o");
137+
argString.push_back(outputFile);
138+
}
139+
140+
// 2. convert to array of C strings
141+
for(auto& s : argString)
142+
{
143+
char* arg = new char[s.size() + 1];
144+
copy(s.begin(), s.end(), arg);
145+
arg[s.size()] = '\0';
146+
args.push_back(arg);
147+
}
148+
149+
// 3. decompress
150+
rc = grk_codec_compress((int)args.size(), &args[0], image,
151+
outputToBuffer ? &streamParams : nullptr);
152+
if(rc)
153+
fprintf(stderr, "Failed to compress\n");
154+
155+
if(outputToBuffer)
156+
printf("Compressed to memory : %ld bytes\n", streamParams.buf_compressed_len);
157+
158+
// write buffer to file
159+
if(outputToBuffer)
160+
{
161+
auto fp = fopen(outputFile.c_str(), "wb");
162+
if(!fp)
130163
{
131-
argString.push_back("--out-fmt");
132-
argString.push_back("jp2");
164+
fprintf(stderr, "Buffer compress: failed to open file %s for writing", outputFile.c_str());
133165
}
134166
else
135167
{
136-
argString.push_back("-o");
137-
argString.push_back(outputFile);
168+
size_t written = fwrite(streamParams.buf, 1, streamParams.buf_compressed_len, fp);
169+
if(written != streamParams.buf_compressed_len)
170+
{
171+
fprintf(stderr, "Buffer compress: only %ld bytes written out of %ld total",
172+
streamParams.buf_compressed_len, written);
173+
}
174+
fclose(fp);
138175
}
139-
140-
// 2. convert to array of C strings
141-
for(auto& s : argString)
142-
{
143-
char* arg = new char[s.size() + 1];
144-
copy(s.begin(), s.end(), arg);
145-
arg[s.size()] = '\0';
146-
args.push_back(arg);
147-
}
148-
149-
// 3. decompress
150-
rc = grk_codec_compress((int)args.size(), &args[0], image,
151-
outputToBuffer ? &streamParams : nullptr);
152-
if(rc)
153-
fprintf(stderr, "Failed to compress\n");
154-
155-
if(outputToBuffer)
156-
printf("Compressed to memory : %ld bytes\n", streamParams.buf_compressed_len);
157-
158-
// write buffer to file
159-
if(outputToBuffer)
160-
{
161-
auto fp = fopen(outputFile.c_str(), "wb");
162-
if(!fp)
163-
{
164-
fprintf(stderr, "Buffer compress: failed to open file %s for writing",
165-
outputFile.c_str());
166-
}
167-
else
168-
{
169-
size_t written = fwrite(streamParams.buf, 1, streamParams.buf_compressed_len, fp);
170-
if(written != streamParams.buf_compressed_len)
171-
{
172-
fprintf(stderr, "Buffer compress: only %ld bytes written out of %ld total",
173-
streamParams.buf_compressed_len, written);
174-
}
175-
fclose(fp);
176-
}
177-
}
178-
179-
beach:
180-
// 4. cleanup
181-
for(auto& s : args)
182-
delete[] s;
183-
delete[] compParams;
184-
delete[] streamParams.buf;
185-
grk_object_unref(&image->obj);
186-
}
187-
188-
return rc;
176+
}
177+
178+
beach:
179+
// 4. cleanup
180+
for(auto& s : args)
181+
delete[] s;
182+
delete[] compParams;
183+
delete[] streamParams.buf;
184+
grk_object_unref(&image->obj);
185+
}
186+
187+
return rc;
189188
}

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