void OCIOColorSpace::_validate(bool for_real)
{
input0().validate(for_real);
if(!m_hasColorSpaces)
{
error("No colorspaces available for input and/or output.");
return;
}
int inputColorSpaceCount = static_cast<int>(m_inputColorSpaceCstrNames.size()) - 1;
if(m_inputColorSpaceIndex < 0 || m_inputColorSpaceIndex >= inputColorSpaceCount)
{
std::ostringstream err;
err << "Input colorspace index (" << m_inputColorSpaceIndex << ") out of range.";
error(err.str().c_str());
return;
}
int outputColorSpaceCount = static_cast<int>(m_outputColorSpaceCstrNames.size()) - 1;
if(m_outputColorSpaceIndex < 0 || m_outputColorSpaceIndex >= outputColorSpaceCount)
{
std::ostringstream err;
err << "Output colorspace index (" << m_outputColorSpaceIndex << ") out of range.";
error(err.str().c_str());
return;
}
try
{
const char * inputName = m_inputColorSpaceCstrNames[m_inputColorSpaceIndex];
const char * outputName = m_outputColorSpaceCstrNames[m_outputColorSpaceIndex];
OCIO::ConstConfigRcPtr config = OCIO::GetCurrentConfig();
config->sanityCheck();
OCIO::ConstContextRcPtr context = getLocalContext();
m_processor = config->getProcessor(context, inputName, outputName);
}
catch(OCIO::Exception &e)
{
error(e.what());
return;
}
if(m_processor->isNoOp())
{
// TODO or call disable() ?
set_out_channels(DD::Image::Mask_None); // prevents engine() from being called
copy_info();
return;
}
set_out_channels(DD::Image::Mask_All);
DD::Image::PixelIop::_validate(for_real);
}
void Generate(int cubesize, int maxwidth,
const std::string & outputfile,
const std::string & configfile,
const std::string & incolorspace,
const std::string & outcolorspace)
{
int width = 0;
int height = 0;
int numchannels = 3;
GetLutImageSize(width, height, cubesize, maxwidth);
std::vector<float> img;
img.resize(width*height*numchannels, 0);
GenerateIdentityLut3D(&img[0], cubesize, numchannels, LUT3DORDER_FAST_RED);
if(!incolorspace.empty() || !outcolorspace.empty())
{
OCIO::ConstConfigRcPtr config = OCIO::Config::Create();
if(!configfile.empty())
{
config = OCIO::Config::CreateFromFile(configfile.c_str());
}
else if(getenv("OCIO"))
{
config = OCIO::Config::CreateFromEnv();
}
else
{
std::ostringstream os;
os << "You must specify an ocio configuration ";
os << "(either with --config or $OCIO).";
throw Exception(os.str().c_str());
}
OCIO::ConstProcessorRcPtr processor =
config->getProcessor(incolorspace.c_str(), outcolorspace.c_str());
OCIO::PackedImageDesc imgdesc(&img[0], width, height, 3);
processor->apply(imgdesc);
}
OIIO::ImageOutput* f = OIIO::ImageOutput::create(outputfile);
if(!f)
{
throw Exception( "Could not create output image.");
}
OIIO::ImageSpec spec(width, height, numchannels, OIIO::TypeDesc::TypeFloat);
// TODO: If DPX, force 16-bit output?
f->open(outputfile, spec);
f->write_image(OIIO::TypeDesc::FLOAT, &img[0]);
f->close();
delete f;
}
void OCIOFileTransform::_validate(bool for_real)
{
input0().validate(for_real);
if(!src)
{
error("The source file must be specified.");
return;
}
try
{
OCIO::ConstConfigRcPtr config = OCIO::GetCurrentConfig();
config->sanityCheck();
OCIO::FileTransformRcPtr transform = OCIO::FileTransform::Create();
transform->setSrc(src);
// TODO: For some reason, cccid is NOT incorporated in this node's hash.
// Until then, cccid is considered broken. Figure out why.
transform->setCCCId(cccid.c_str());
if(dirindex == 0) transform->setDirection(OCIO::TRANSFORM_DIR_FORWARD);
else transform->setDirection(OCIO::TRANSFORM_DIR_INVERSE);
if(interpindex == 0) transform->setInterpolation(OCIO::INTERP_NEAREST);
else transform->setInterpolation(OCIO::INTERP_LINEAR);
processor = config->getProcessor(transform, OCIO::TRANSFORM_DIR_FORWARD);
}
catch(OCIO::Exception &e)
{
error(e.what());
return;
}
if(processor->isNoOp())
{
// TODO or call disable() ?
set_out_channels(DD::Image::Mask_None); // prevents engine() from being called
copy_info();
return;
}
set_out_channels(DD::Image::Mask_All);
DD::Image::PixelIop::_validate(for_real);
}
void OCIOFileTransform::_validate(bool for_real)
{
if(!m_file)
{
error("The source file must be specified.");
return;
}
try
{
OCIO::ConstConfigRcPtr config = OCIO::GetCurrentConfig();
OCIO::FileTransformRcPtr transform = OCIO::FileTransform::Create();
transform->setSrc(m_file);
transform->setCCCId(m_cccid.c_str());
if(m_dirindex == 0) transform->setDirection(OCIO::TRANSFORM_DIR_FORWARD);
else transform->setDirection(OCIO::TRANSFORM_DIR_INVERSE);
if(m_interpindex == 0) transform->setInterpolation(OCIO::INTERP_NEAREST);
else if(m_interpindex == 1) transform->setInterpolation(OCIO::INTERP_LINEAR);
else if(m_interpindex == 2) transform->setInterpolation(OCIO::INTERP_TETRAHEDRAL);
else if(m_interpindex == 3) transform->setInterpolation(OCIO::INTERP_BEST);
else
{
// Should never happen
error("Interpolation value out of bounds");
return;
}
m_processor = config->getProcessor(transform, OCIO::TRANSFORM_DIR_FORWARD);
}
catch(OCIO::Exception &e)
{
error(e.what());
return;
}
if(m_processor->isNoOp())
{
set_out_channels(DD::Image::Mask_None); // prevents engine() from being called
} else {
set_out_channels(DD::Image::Mask_All);
}
DD::Image::PixelIop::_validate(for_real);
}
void OCIOCDLTransform::_validate(bool for_real)
{
input0().validate(for_real);
try
{
OCIO::ConstConfigRcPtr config = OCIO::GetCurrentConfig();
config->sanityCheck();
OCIO::CDLTransformRcPtr cc = OCIO::CDLTransform::Create();
cc->setSlope(m_slope);
cc->setOffset(m_offset);
cc->setPower(m_power);
cc->setSat(m_saturation);
if(m_dirindex == 0) cc->setDirection(OCIO::TRANSFORM_DIR_FORWARD);
else cc->setDirection(OCIO::TRANSFORM_DIR_INVERSE);
m_processor = config->getProcessor(cc);
}
catch(OCIO::Exception &e)
{
error(e.what());
return;
}
if(m_processor->isNoOp())
{
// TODO or call disable() ?
set_out_channels(DD::Image::Mask_None); // prevents engine() from being called
copy_info();
return;
}
set_out_channels(DD::Image::Mask_All);
DD::Image::PixelIop::_validate(for_real);
}
ColorSpaceProcessor *ColorSpaceManager::get_processor(ustring colorspace)
{
#ifdef WITH_OCIO
/* Only use this for OpenColorIO color spaces, not the builtin ones. */
assert(colorspace != u_colorspace_srgb && colorspace != u_colorspace_auto);
if (colorspace == u_colorspace_raw) {
return NULL;
}
OCIO::ConstConfigRcPtr config = OCIO::GetCurrentConfig();
if (!config) {
return NULL;
}
/* Cache processor until free_memory(), memory overhead is expected to be
* small and the processor is likely to be reused. */
thread_scoped_lock cache_processors_lock(cache_processors_mutex);
if (cached_processors.find(colorspace) == cached_processors.end()) {
try {
cached_processors[colorspace] = config->getProcessor(colorspace.c_str(), "scene_linear");
}
catch (OCIO::Exception &exception) {
cached_processors[colorspace] = OCIO::ConstProcessorRcPtr();
VLOG(1) << "Colorspace " << colorspace.c_str()
<< " can't be converted to scene_linear: " << exception.what();
}
}
const OCIO::Processor *processor = cached_processors[colorspace].get();
return (ColorSpaceProcessor *)processor;
#else
/* No OpenColorIO. */
(void)colorspace;
return NULL;
#endif
}
void OCIOLogConvert::_validate(bool for_real)
{
try
{
OCIO::ConstConfigRcPtr config = OCIO::GetCurrentConfig();
const char * src = 0;
const char * dst = 0;
if(modeindex == 0)
{
src = OCIO::ROLE_COMPOSITING_LOG;
dst = OCIO::ROLE_SCENE_LINEAR;
}
else
{
src = OCIO::ROLE_SCENE_LINEAR;
dst = OCIO::ROLE_COMPOSITING_LOG;
}
processor = config->getProcessor(src, dst);
}
catch(OCIO::Exception &e)
{
error(e.what());
return;
}
if(processor->isNoOp())
{
set_out_channels(DD::Image::Mask_None); // prevents engine() from being called
} else {
set_out_channels(DD::Image::Mask_All);
}
DD::Image::PixelIop::_validate(for_real);
}
int main(int argc, char **argv)
{
if(argc<5)
{
std::cerr << USAGE_TEXT << std::endl;
exit(0);
}
const char * inputimage = argv[1];
const char * inputcolorspace = argv[2];
const char * outputimage = argv[3];
const char * outputcolorspace = argv[4];
OIIO::ImageSpec spec;
std::vector<float> img;
int imgwidth = 0;
int imgheight = 0;
int components = 0;
// Load the image
std::cerr << "Loading " << inputimage << std::endl;
try
{
OIIO::ImageInput* f = OIIO::ImageInput::create(inputimage);
if(!f)
{
std::cerr << "Could not create image input." << std::endl;
exit(1);
}
f->open(inputimage, spec);
std::string error = f->geterror();
if(!error.empty())
{
std::cerr << "Error loading image " << error << std::endl;
exit(1);
}
imgwidth = spec.width;
imgheight = spec.height;
components = spec.nchannels;
img.resize(imgwidth*imgheight*components);
memset(&img[0], 0, imgwidth*imgheight*components*sizeof(float));
f->read_image(OIIO::TypeDesc::TypeFloat, &img[0]);
delete f;
}
catch(...)
{
std::cerr << "Error loading file.";
exit(1);
}
// Process the image
try
{
// Load the current config.
OCIO::ConstConfigRcPtr config = OCIO::GetCurrentConfig();
// Get the processor
OCIO::ConstProcessorRcPtr processor = config->getProcessor(inputcolorspace, outputcolorspace);
// Wrap the image in a light-weight ImageDescription
OCIO::PackedImageDesc imageDesc(&img[0], imgwidth, imgheight, components);
// Apply the color transformation (in place)
processor->apply(imageDesc);
}
catch(OCIO::Exception & exception)
{
std::cerr << "OCIO Error: " << exception.what() << std::endl;
}
catch(...)
{
std::cerr << "Unknown OCIO error encountered." << std::endl;
}
// Write out the result
try
{
OIIO::ImageOutput* f = OIIO::ImageOutput::create(outputimage);
if(!f)
{
std::cerr << "Could not create output input." << std::endl;
exit(1);
}
f->open(outputimage, spec);
f->write_image(OIIO::TypeDesc::FLOAT, &img[0]);
f->close();
delete f;
}
catch(...)
{
std::cerr << "Error loading file.";
exit(1);
}
std::cerr << "Wrote " << outputimage << std::endl;
return 0;
}
void
OCIOProcessor::setValues(const OCIO_NAMESPACE::ConstConfigRcPtr &config, const OCIO_NAMESPACE::ConstContextRcPtr &context, const OCIO_NAMESPACE::ConstTransformRcPtr& transform, OCIO_NAMESPACE::TransformDirection direction)
{
_proc = config->getProcessor(context, transform, direction);
}
void
OCIOProcessor::setValues(const OCIO_NAMESPACE::ConstConfigRcPtr &config, const OCIO_NAMESPACE::ConstTransformRcPtr& transform)
{
_proc = config->getProcessor(transform);
}
void
OCIOProcessor::setValues(const OCIO_NAMESPACE::ConstConfigRcPtr &config, const OCIO_NAMESPACE::ConstContextRcPtr &context, const std::string& inputSpace, const std::string& outputSpace)
{
_proc = config->getProcessor(context, inputSpace.c_str(), outputSpace.c_str());
}
int main(int argc, const char **argv)
{
bool help = false;
int errorcount = 0;
std::string inputconfig;
std::string outputconfig;
ArgParse ap;
ap.options("ociocheck -- validate an OpenColorIO configuration\n\n"
"usage: ociocheck [options]\n",
"--help", &help, "Print help message",
"--iconfig %s", &inputconfig, "Input .ocio configuration file (default: $OCIO)",
"--oconfig %s", &outputconfig, "Output .ocio file",
NULL);
if (ap.parse(argc, argv) < 0)
{
std::cout << ap.geterror() << std::endl;
ap.usage();
std::cout << DESC_STRING;
return 1;
}
if (help)
{
ap.usage();
std::cout << DESC_STRING;
return 1;
}
try
{
OCIO::ConstConfigRcPtr config;
std::cout << std::endl;
std::cout << "OpenColorIO Library Version: " << OCIO::GetVersion() << std::endl;
std::cout << "OpenColorIO Library VersionHex: " << OCIO::GetVersionHex() << std::endl;
if(!inputconfig.empty())
{
std::cout << "Loading " << inputconfig << std::endl;
config = OCIO::Config::CreateFromFile(inputconfig.c_str());
}
else if(getenv("OCIO"))
{
std::cout << "Loading $OCIO " << getenv("OCIO") << std::endl;
config = OCIO::Config::CreateFromEnv();
}
else
{
std::cout << "ERROR: You must specify an input OCIO configuration ";
std::cout << "(either with --iconfig or $OCIO).\n";
ap.usage ();
std::cout << DESC_STRING;
return 1;
}
std::cout << std::endl;
std::cout << "** General **" << std::endl;
std::cout << "Search Path: " << config->getSearchPath() << std::endl;
std::cout << "Working Dir: " << config->getWorkingDir() << std::endl;
std::cout << std::endl;
std::cout << "Default Display: " << config->getDefaultDisplay() << std::endl;
std::cout << "Default View: " << config->getDefaultView(config->getDefaultDisplay()) << std::endl;
{
std::cout << std::endl;
std::cout << "** Roles **" << std::endl;
std::set<std::string> usedroles;
const char * allroles[] = { OCIO::ROLE_DEFAULT, OCIO::ROLE_SCENE_LINEAR,
OCIO::ROLE_DATA, OCIO::ROLE_REFERENCE,
OCIO::ROLE_COMPOSITING_LOG, OCIO::ROLE_COLOR_TIMING,
OCIO::ROLE_COLOR_PICKING,
OCIO::ROLE_TEXTURE_PAINT, OCIO::ROLE_MATTE_PAINT,
NULL };
int MAXROLES=256;
for(int i=0;i<MAXROLES; ++i)
{
const char * role = allroles[i];
if(!role) break;
usedroles.insert(role);
OCIO::ConstColorSpaceRcPtr cs = config->getColorSpace(role);
if(cs)
{
std::cout << cs->getName() << " (" << role << ")" << std::endl;
}
else
{
std::cout << "ERROR: NOT DEFINED" << " (" << role << ")" << std::endl;
errorcount += 1;
}
}
for(int i=0; i<config->getNumRoles(); ++i)
{
const char * role = config->getRoleName(i);
if(usedroles.find(role) != usedroles.end()) continue;
OCIO::ConstColorSpaceRcPtr cs = config->getColorSpace(role);
if(cs)
{
std::cout << cs->getName() << " (" << role << ": user)" << std::endl;
}
else
{
std::cout << "ERROR: NOT DEFINED" << " (" << role << ")" << std::endl;
errorcount += 1;
}
}
}
std::cout << std::endl;
std::cout << "** ColorSpaces **" << std::endl;
OCIO::ConstColorSpaceRcPtr lin = config->getColorSpace(OCIO::ROLE_SCENE_LINEAR);
if(!lin)
{
std::cout << "Error: scene_linear role must be defined." << std::endl;
errorcount += 1;
}
else
{
for(int i=0; i<config->getNumColorSpaces(); ++i)
{
OCIO::ConstColorSpaceRcPtr cs = config->getColorSpace(config->getColorSpaceNameByIndex(i));
bool convertsToLinear = true;
std::string convertsToLinearErrorText;
bool convertsFromLinear = true;
std::string convertsFromLinearErrorText;
try
{
OCIO::ConstProcessorRcPtr p = config->getProcessor(cs, lin);
}
catch(OCIO::Exception & exception)
{
convertsToLinear = false;
convertsToLinearErrorText = exception.what();
}
try
{
OCIO::ConstProcessorRcPtr p = config->getProcessor(lin, cs);
}
catch(OCIO::Exception & exception)
{
convertsFromLinear = false;
convertsFromLinearErrorText = exception.what();
}
if(convertsToLinear && convertsFromLinear)
{
std::cout << cs->getName() << std::endl;
}
else if(!convertsToLinear && !convertsFromLinear)
{
std::cout << cs->getName();
std::cout << " -- error" << std::endl;
std::cout << "\t" << convertsToLinearErrorText << std::endl;
std::cout << "\t" << convertsFromLinearErrorText << std::endl;
errorcount += 1;
}
else if(convertsToLinear)
{
std::cout << cs->getName();
std::cout << " -- input only" << std::endl;
}
else if(convertsFromLinear)
{
std::cout << cs->getName();
std::cout << " -- output only" << std::endl;
}
}
}
std::cout << std::endl;
std::cout << "** Looks **" << std::endl;
if(config->getNumLooks()>0)
{
for(int i=0; i<config->getNumLooks(); ++i)
{
std::cout << config->getLookNameByIndex(i) << std::endl;
}
}
else
{
std::cout << "no looks defined" << std::endl;
}
std::cout << std::endl;
std::cout << "** Sanity Check **" << std::endl;
try
{
config->sanityCheck();
std::cout << "passed" << std::endl;
}
catch(OCIO::Exception & exception)
{
std::cout << "ERROR" << std::endl;
errorcount += 1;
std::cout << exception.what() << std::endl;
}
if(!outputconfig.empty())
{
std::ofstream output;
output.open(outputconfig.c_str());
if(!output.is_open())
{
std::cout << "Error opening " << outputconfig << " for writing." << std::endl;
}
else
{
config->serialize(output);
output.close();
std::cout << "Wrote " << outputconfig << std::endl;
}
}
}
catch(OCIO::Exception & exception)
{
std::cout << "ERROR: " << exception.what() << std::endl;
return 1;
} catch (std::exception& exception) {
std::cout << "ERROR: " << exception.what() << "\n";
return 1;
}
catch(...)
{
std::cout << "Unknown error encountered." << std::endl;
return 1;
}
std::cout << std::endl;
if(errorcount == 0)
{
std::cout << "Tests complete." << std::endl << std::endl;
return 0;
}
else
{
std::cout << errorcount << " tests failed." << std::endl << std::endl;
return 1;
}
}
void OCIOLookTransform::_validate(bool for_real)
{
if(!m_hasColorSpaces)
{
error("No colorspaces available for input and/or output.");
return;
}
int inputColorSpaceCount = static_cast<int>(m_inputColorSpaceCstrNames.size()) - 1;
if(m_inputColorSpaceIndex < 0 || m_inputColorSpaceIndex >= inputColorSpaceCount)
{
std::ostringstream err;
err << "Input colorspace index (" << m_inputColorSpaceIndex << ") out of range.";
error(err.str().c_str());
return;
}
int outputColorSpaceCount = static_cast<int>(m_outputColorSpaceCstrNames.size()) - 1;
if(m_outputColorSpaceIndex < 0 || m_outputColorSpaceIndex >= outputColorSpaceCount)
{
std::ostringstream err;
err << "Output colorspace index (" << m_outputColorSpaceIndex << ") out of range.";
error(err.str().c_str());
return;
}
try
{
OCIO::ConstConfigRcPtr config = OCIO::GetCurrentConfig();
const char * inputName = config->getColorSpaceNameByIndex(m_inputColorSpaceIndex);
const char * outputName = config->getColorSpaceNameByIndex(m_outputColorSpaceIndex);
OCIO::LookTransformRcPtr transform = OCIO::LookTransform::Create();
const char * look = m_lookCstrNames[m_lookIndex];
if(look != NULL)
{
transform->setLooks(look);
}
OCIO::ConstContextRcPtr context = getLocalContext();
OCIO::TransformDirection direction = OCIO::TRANSFORM_DIR_UNKNOWN;
bool invertTransform = (m_dirIndex == 0) ? false : true;
// Forward
if(!invertTransform)
{
transform->setSrc(inputName);
transform->setDst(outputName);
direction = OCIO::TRANSFORM_DIR_FORWARD;
}
else
{
// The TRANSFORM_DIR_INVERSE applies an inverse for the end-to-end transform,
// which would otherwise do dst->inv look -> src.
// This is an unintuitive result for the artist (who would expect in, out to
// remain unchanged), so we account for that here by flipping src/dst
transform->setSrc(outputName);
transform->setDst(inputName);
direction = OCIO::TRANSFORM_DIR_INVERSE;
}
try
{
m_processor = config->getProcessor(context, transform, direction);
}
// We only catch the exceptions for missing files, and try to succeed
// in this case. All other errors represent more serious problems and
// should fail through.
catch(const OCIO::ExceptionMissingFile &e)
{
if(!m_ignoreErrors) throw;
m_processor = config->getProcessor(context, inputName, outputName);
}
}
catch(const OCIO::Exception &e)
{
error(e.what());
return;
}
catch (...)
{
error("OCIOLookTransform: Unknown exception during _validate.");
return;
}
if(m_processor->isNoOp())
{
set_out_channels(DD::Image::Mask_None); // prevents engine() from being called
} else {
set_out_channels(DD::Image::Mask_All);
}
DD::Image::PixelIop::_validate(for_real);
}
void UpdateOCIOGLState()
{
// Step 0: Get the processor using any of the pipelines mentioned above.
OCIO::ConstConfigRcPtr config = OCIO::GetCurrentConfig();
OCIO::DisplayTransformRcPtr transform = OCIO::DisplayTransform::Create();
transform->setInputColorSpaceName( g_inputColorSpace.c_str() );
transform->setDisplay( g_display.c_str() );
transform->setView( g_transformName.c_str() );
// Add optional transforms to create a full-featured, "canonical" display pipeline
// Fstop exposure control (in SCENE_LINEAR)
{
float gain = powf(2.0f, g_exposure_fstop);
const float slope4f[] = { gain, gain, gain, gain };
float m44[16];
float offset4[4];
OCIO::MatrixTransform::Scale(m44, offset4, slope4f);
OCIO::MatrixTransformRcPtr mtx = OCIO::MatrixTransform::Create();
mtx->setValue(m44, offset4);
transform->setLinearCC(mtx);
}
// Channel swizzling
{
float lumacoef[3];
config->getDefaultLumaCoefs(lumacoef);
float m44[16];
float offset[4];
OCIO::MatrixTransform::View(m44, offset, g_channelHot, lumacoef);
OCIO::MatrixTransformRcPtr swizzle = OCIO::MatrixTransform::Create();
swizzle->setValue(m44, offset);
transform->setChannelView(swizzle);
}
// Post-display transform gamma
{
float exponent = 1.0f/std::max(1e-6f, static_cast<float>(g_display_gamma));
const float exponent4f[] = { exponent, exponent, exponent, exponent };
OCIO::ExponentTransformRcPtr expTransform = OCIO::ExponentTransform::Create();
expTransform->setValue(exponent4f);
transform->setDisplayCC(expTransform);
}
OCIO::ConstProcessorRcPtr processor;
try
{
processor = config->getProcessor(transform);
}
catch(OCIO::Exception & e)
{
std::cerr << e.what() << std::endl;
return;
}
catch(...)
{
return;
}
// Step 1: Create a GPU Shader Description
OCIO::GpuShaderDesc shaderDesc;
shaderDesc.setLanguage(OCIO::GPU_LANGUAGE_GLSL_1_0);
shaderDesc.setFunctionName("OCIODisplay");
shaderDesc.setLut3DEdgeLen(LUT3D_EDGE_SIZE);
// Step 2: Compute the 3D LUT
std::string lut3dCacheID = processor->getGpuLut3DCacheID(shaderDesc);
if(lut3dCacheID != g_lut3dcacheid)
{
//std::cerr << "Computing 3DLut " << g_lut3dcacheid << std::endl;
g_lut3dcacheid = lut3dCacheID;
processor->getGpuLut3D(&g_lut3d[0], shaderDesc);
glBindTexture(GL_TEXTURE_3D, g_lut3dTexID);
glTexSubImage3D(GL_TEXTURE_3D, 0,
0, 0, 0,
LUT3D_EDGE_SIZE, LUT3D_EDGE_SIZE, LUT3D_EDGE_SIZE,
GL_RGB,GL_FLOAT, &g_lut3d[0]);
}
// Step 3: Compute the Shader
std::string shaderCacheID = processor->getGpuShaderTextCacheID(shaderDesc);
if(g_program == 0 || shaderCacheID != g_shadercacheid)
{
//std::cerr << "Computing Shader " << g_shadercacheid << std::endl;
g_shadercacheid = shaderCacheID;
std::ostringstream os;
os << processor->getGpuShaderText(shaderDesc) << "\n";
os << g_fragShaderText;
//std::cerr << os.str() << std::endl;
if(g_fragShader) glDeleteShader(g_fragShader);
g_fragShader = CompileShaderText(GL_FRAGMENT_SHADER, os.str().c_str());
if(g_program) glDeleteProgram(g_program);
g_program = LinkShaders(g_fragShader);
}
glUseProgram(g_program);
glUniform1i(glGetUniformLocation(g_program, "tex1"), 1);
glUniform1i(glGetUniformLocation(g_program, "tex2"), 2);
}
std::string
HdxColorCorrectionTask::_CreateOpenColorIOResources()
{
#ifdef PXR_OCIO_PLUGIN_ENABLED
// Use client provided OCIO values, or use default fallback values
OCIO::ConstConfigRcPtr config = OCIO::GetCurrentConfig();
const char* display = _displayOCIO.empty() ?
config->getDefaultDisplay() :
_displayOCIO.c_str();
const char* view = _viewOCIO.empty() ?
config->getDefaultView(display) :
_viewOCIO.c_str();
std::string inputColorSpace = _colorspaceOCIO;
if (inputColorSpace.empty()) {
OCIO::ConstColorSpaceRcPtr cs = config->getColorSpace("default");
if (cs) {
inputColorSpace = cs->getName();
} else {
inputColorSpace = OCIO::ROLE_SCENE_LINEAR;
}
}
// Setup the transformation we need to apply
OCIO::DisplayTransformRcPtr transform = OCIO::DisplayTransform::Create();
transform->setDisplay(display);
transform->setView(view);
transform->setInputColorSpaceName(inputColorSpace.c_str());
if (!_looksOCIO.empty()) {
transform->setLooksOverride(_looksOCIO.c_str());
transform->setLooksOverrideEnabled(true);
} else {
transform->setLooksOverrideEnabled(false);
}
OCIO::ConstProcessorRcPtr processor = config->getProcessor(transform);
// Create a GPU Shader Description
OCIO::GpuShaderDesc shaderDesc;
shaderDesc.setLanguage(OCIO::GPU_LANGUAGE_GLSL_1_0);
shaderDesc.setFunctionName("OCIODisplay");
shaderDesc.setLut3DEdgeLen(_lut3dSizeOCIO);
// Compute and the 3D LUT
int num3Dentries = 3 * _lut3dSizeOCIO*_lut3dSizeOCIO*_lut3dSizeOCIO;
std::vector<float> lut3d;
lut3d.resize(num3Dentries);
processor->getGpuLut3D(&lut3d[0], shaderDesc);
// Load the data into an OpenGL 3D Texture
if (_texture3dLUT != 0) {
glDeleteTextures(1, &_texture3dLUT);
}
GLint restoreTexture;
glGetIntegerv(GL_TEXTURE_BINDING_3D, &restoreTexture);
glGenTextures(1, &_texture3dLUT);
glBindTexture(GL_TEXTURE_3D, _texture3dLUT);
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
glTexImage3D(GL_TEXTURE_3D, 0, GL_RGB32F,
_lut3dSizeOCIO, _lut3dSizeOCIO, _lut3dSizeOCIO,
0, GL_RGB, GL_FLOAT, &lut3d[0]);
glBindTexture(GL_TEXTURE_3D, restoreTexture);
const char* gpuShaderText = processor->getGpuShaderText(shaderDesc);
GLF_POST_PENDING_GL_ERRORS();
return std::string(gpuShaderText);
#else
return std::string();
#endif
}
int main (int argc, const char* argv[])
{
bool help = false;
int cubesize = -1;
int shapersize = -1; // cubsize^2
std::string format;
std::string inputconfig;
std::string inputspace;
std::string shaperspace;
std::string looks;
std::string outputspace;
bool usestdout = false;
bool verbose = false;
int whitepointtemp = 6505;
std::string displayicc;
std::string description;
std::string copyright = "No copyright. Use freely.";
// What are the allowed baker output formats?
std::ostringstream formats;
formats << "the LUT format to bake: ";
for(int i=0; i<OCIO::Baker::getNumFormats(); ++i)
{
if(i!=0) formats << ", ";
formats << OCIO::Baker::getFormatNameByIndex(i);
formats << " (." << OCIO::Baker::getFormatExtensionByIndex(i) << ")";
}
formats << ", icc (.icc)";
std::string formatstr = formats.str();
std::string dummystr;
float dummyf1, dummyf2, dummyf3;
ArgParse ap;
ap.options("ociobakelut -- create a new LUT or ICC profile from an OCIO config or LUT file(s)\n\n"
"usage: ociobakelut [options] <OUTPUTFILE.LUT>\n\n"
"example: ociobakelut --inputspace lg10 --outputspace srgb8 --format flame lg_to_srgb.3dl\n"
"example: ociobakelut --lut filmlut.3dl --lut calibration.3dl --format flame display.3dl\n"
"example: ociobakelut --cccid 0 --lut cdlgrade.ccc --lut calibration.3dl --format flame graded_display.3dl\n"
"example: ociobakelut --lut look.3dl --offset 0.01 -0.02 0.03 --lut display.3dl --format flame display_with_look.3dl\n"
"example: ociobakelut --inputspace lg10 --outputspace srgb8 --format icc ~/Library/ColorSync/Profiles/test.icc\n"
"example: ociobakelut --lut filmlut.3dl --lut calibration.3dl --format icc ~/Library/ColorSync/Profiles/test.icc\n\n",
"%*", parse_end_args, "",
"<SEPARATOR>", "Using Existing OCIO Configurations",
"--inputspace %s", &inputspace, "Input OCIO ColorSpace (or Role)",
"--outputspace %s", &outputspace, "Output OCIO ColorSpace (or Role)",
"--shaperspace %s", &shaperspace, "the OCIO ColorSpace or Role, for the shaper",
"--looks %s", &looks, "the OCIO looks to apply",
"--iconfig %s", &inputconfig, "Input .ocio configuration file (default: $OCIO)\n",
"<SEPARATOR>", "Config-Free LUT Baking",
"<SEPARATOR>", " (all options can be specified multiple times, each is applied in order)",
"--cccid %s", &dummystr, "Specify a CCCId for any following LUTs",
"--lut %s", &dummystr, "Specify a LUT (forward direction)",
"--invlut %s", &dummystr, "Specify a LUT (inverse direction)",
"--slope %f %f %f", &dummyf1, &dummyf2, &dummyf3, "slope",
"--offset %f %f %f", &dummyf1, &dummyf2, &dummyf3, "offset (float)",
"--offset10 %f %f %f", &dummyf1, &dummyf2, &dummyf3, "offset (10-bit)",
"--power %f %f %f", &dummyf1, &dummyf2, &dummyf3, "power",
"--sat %f", &dummyf1, "saturation (ASC-CDL luma coefficients)\n",
"<SEPARATOR>", "Baking Options",
"--format %s", &format, formatstr.c_str(),
"--shapersize %d", &shapersize, "size of the shaper (default: format specific)",
"--cubesize %d", &cubesize, "size of the cube (default: format specific)",
"--stdout", &usestdout, "Write to stdout (rather than file)",
"--v", &verbose, "Verbose",
"--help", &help, "Print help message\n",
"<SEPARATOR>", "ICC Options",
//"--cubesize %d", &cubesize, "size of the ICC CLUT cube (default: 32)",
"--whitepoint %d", &whitepointtemp, "whitepoint for the profile (default: 6505)",
"--displayicc %s", &displayicc , "an ICC profile which matches the OCIO profiles target display",
"--description %s", &description , "a meaningful description, this will show up in UI like photoshop (defaults to \"filename.icc\")",
"--copyright %s", ©right , "a copyright field (default: \"No copyright. Use freely.\"\n",
// TODO: add --metadata option
NULL);
if (ap.parse(argc, argv) < 0)
{
std::cout << ap.geterror() << std::endl;
ap.usage();
std::cout << "\n";
return 1;
}
if (help || (argc == 1 ))
{
ap.usage();
std::cout << "\n";
return 1;
}
// If we're printing to stdout, disable verbose printouts
if(usestdout)
{
verbose = false;
}
// Create the OCIO processor for the specified transform.
OCIO::ConstConfigRcPtr config;
OCIO::GroupTransformRcPtr groupTransform;
try
{
groupTransform = parse_luts(argc, argv);
}
catch(const OCIO::Exception & e)
{
std::cerr << "\nERROR: " << e.what() << std::endl;
std::cerr << "See --help for more info." << std::endl;
return 1;
}
catch(...)
{
std::cerr << "\nERROR: An unknown error occurred in parse_luts" << std::endl;
std::cerr << "See --help for more info." << std::endl;
return 1;
}
if(!groupTransform)
{
std::cerr << "\nERROR: parse_luts returned null transform" << std::endl;
std::cerr << "See --help for more info." << std::endl;
return 1;
}
// If --luts have been specified, synthesize a new (temporary) configuration
// with the transformation embedded in a colorspace.
if(!groupTransform->empty())
{
if(!inputspace.empty())
{
std::cerr << "\nERROR: --inputspace is not allowed when using --lut\n\n";
std::cerr << "See --help for more info." << std::endl;
return 1;
}
if(!outputspace.empty())
{
std::cerr << "\nERROR: --outputspace is not allowed when using --lut\n\n";
std::cerr << "See --help for more info." << std::endl;
return 1;
}
if(!looks.empty())
{
std::cerr << "\nERROR: --looks is not allowed when using --lut\n\n";
std::cerr << "See --help for more info." << std::endl;
return 1;
}
if(!shaperspace.empty())
{
std::cerr << "\nERROR: --shaperspace is not allowed when using --lut\n\n";
std::cerr << "See --help for more info." << std::endl;
return 1;
}
OCIO::ConfigRcPtr editableConfig = OCIO::Config::Create();
OCIO::ColorSpaceRcPtr inputColorSpace = OCIO::ColorSpace::Create();
inputspace = "RawInput";
inputColorSpace->setName(inputspace.c_str());
editableConfig->addColorSpace(inputColorSpace);
OCIO::ColorSpaceRcPtr outputColorSpace = OCIO::ColorSpace::Create();
outputspace = "ProcessedOutput";
outputColorSpace->setName(outputspace.c_str());
outputColorSpace->setTransform(groupTransform,
OCIO::COLORSPACE_DIR_FROM_REFERENCE);
if(verbose)
{
std::cout << "[OpenColorIO DEBUG]: Specified Transform:";
std::cout << *groupTransform;
std::cout << "\n";
}
editableConfig->addColorSpace(outputColorSpace);
config = editableConfig;
}
else
{
if(inputspace.empty())
{
std::cerr << "\nERROR: You must specify the --inputspace.\n\n";
std::cerr << "See --help for more info." << std::endl;
return 1;
}
if(outputspace.empty())
{
std::cerr << "\nERROR: You must specify the --outputspace.\n\n";
std::cerr << "See --help for more info." << std::endl;
return 1;
}
if(format.empty())
{
std::cerr << "\nERROR: You must specify the LUT format using --format.\n\n";
std::cerr << "See --help for more info." << std::endl;
return 1;
}
if(!inputconfig.empty())
{
if(!usestdout && verbose)
std::cout << "[OpenColorIO INFO]: Loading " << inputconfig << std::endl;
config = OCIO::Config::CreateFromFile(inputconfig.c_str());
}
else if(getenv("OCIO"))
{
if(!usestdout && verbose)
std::cout << "[OpenColorIO INFO]: Loading $OCIO " << getenv("OCIO") << std::endl;
config = OCIO::Config::CreateFromEnv();
}
else
{
std::cerr << "ERROR: You must specify an input OCIO configuration ";
std::cerr << "(either with --iconfig or $OCIO).\n\n";
ap.usage ();
return 1;
}
}
if(outputfile.empty() && !usestdout)
{
std::cerr << "\nERROR: You must specify the outputfile or --stdout.\n\n";
std::cerr << "See --help for more info." << std::endl;
return 1;
}
try
{
if(format == "icc")
{
if(description.empty())
{
description = outputfile;
if(verbose)
std::cout << "[OpenColorIO INFO]: \"--description\" set to default value of filename.icc: " << outputfile << "" << std::endl;
}
if(usestdout)
{
std::cerr << "\nERROR: --stdout not supported when writing ICC profiles.\n\n";
std::cerr << "See --help for more info." << std::endl;
return 1;
}
if(outputfile.empty())
{
std::cerr << "ERROR: you need to specify a output ICC path\n";
std::cerr << "See --help for more info." << std::endl;
return 1;
}
if(cubesize<2) cubesize = 32; // default
OCIO::ConstProcessorRcPtr processor;
if (!looks.empty())
{
OCIO::LookTransformRcPtr transform =
OCIO::LookTransform::Create();
transform->setLooks(looks.c_str());
transform->setSrc(inputspace.c_str());
transform->setDst(outputspace.c_str());
processor = config->getProcessor(transform,
OCIO::TRANSFORM_DIR_FORWARD);
}
else
{
processor = config->getProcessor(inputspace.c_str(),
outputspace.c_str());
}
SaveICCProfileToFile(outputfile,
processor,
cubesize,
whitepointtemp,
displayicc,
description,
copyright,
verbose);
}
else
{
OCIO::BakerRcPtr baker = OCIO::Baker::Create();
// setup the baker for our LUT type
baker->setConfig(config);
baker->setFormat(format.c_str());
baker->setInputSpace(inputspace.c_str());
baker->setShaperSpace(shaperspace.c_str());
baker->setLooks(looks.c_str());
baker->setTargetSpace(outputspace.c_str());
if(shapersize!=-1) baker->setShaperSize(shapersize);
if(cubesize!=-1) baker->setCubeSize(cubesize);
// output LUT
std::ostringstream output;
if(!usestdout && verbose)
std::cout << "[OpenColorIO INFO]: Baking '" << format << "' LUT" << std::endl;
if(usestdout)
{
baker->bake(std::cout);
}
else
{
std::ofstream f(outputfile.c_str());
baker->bake(f);
if(verbose)
std::cout << "[OpenColorIO INFO]: Wrote '" << outputfile << "'" << std::endl;
}
}
}
catch(OCIO::Exception & exception)
{
std::cerr << "OCIO Error: " << exception.what() << std::endl;
std::cerr << "See --help for more info." << std::endl;
return 1;
}
catch (std::exception& exception)
{
std::cerr << "Error: " << exception.what() << "\n";
std::cerr << "See --help for more info." << std::endl;
return 1;
}
catch(...)
{
std::cerr << "Unknown OCIO error encountered." << std::endl;
std::cerr << "See --help for more info." << std::endl;
return 1;
}
return 0;
}
void UpdateOCIOGLState()
{
// Step 0: Get the processor using any of the pipelines mentioned above.
OCIO::ConstConfigRcPtr config = OCIO::GetCurrentConfig();
OCIO::DisplayTransformRcPtr transform = OCIO::DisplayTransform::Create();
transform->setInputColorSpaceName( g_inputColorSpace.c_str() );
transform->setDisplay( g_display.c_str() );
transform->setView( g_transformName.c_str() );
transform->setLooksOverride( g_look.c_str() );
if(g_verbose)
{
std::cout << std::endl;
std::cout << "Color transformation composed of:" << std::endl;
std::cout << " Image ColorSpace is:\t" << g_inputColorSpace << std::endl;
std::cout << " Transform is:\t\t" << g_transformName << std::endl;
std::cout << " Device is:\t\t" << g_display << std::endl;
std::cout << " Looks Override is:\t'" << g_look << "'" << std::endl;
std::cout << " with:" << std::endl;
std::cout << " exposure_fstop = " << g_exposure_fstop << std::endl;
std::cout << " display_gamma = " << g_display_gamma << std::endl;
std::cout << " channels = "
<< (g_channelHot[0] ? "R" : "")
<< (g_channelHot[1] ? "G" : "")
<< (g_channelHot[2] ? "B" : "")
<< (g_channelHot[3] ? "A" : "") << std::endl;
}
// Add optional transforms to create a full-featured, "canonical" display pipeline
// Fstop exposure control (in SCENE_LINEAR)
{
float gain = powf(2.0f, g_exposure_fstop);
const float slope4f[] = { gain, gain, gain, gain };
float m44[16];
float offset4[4];
OCIO::MatrixTransform::Scale(m44, offset4, slope4f);
OCIO::MatrixTransformRcPtr mtx = OCIO::MatrixTransform::Create();
mtx->setValue(m44, offset4);
transform->setLinearCC(mtx);
}
// Channel swizzling
{
float lumacoef[3];
config->getDefaultLumaCoefs(lumacoef);
float m44[16];
float offset[4];
OCIO::MatrixTransform::View(m44, offset, g_channelHot, lumacoef);
OCIO::MatrixTransformRcPtr swizzle = OCIO::MatrixTransform::Create();
swizzle->setValue(m44, offset);
transform->setChannelView(swizzle);
}
// Post-display transform gamma
{
float exponent = 1.0f/std::max(1e-6f, static_cast<float>(g_display_gamma));
const float exponent4f[] = { exponent, exponent, exponent, exponent };
OCIO::ExponentTransformRcPtr expTransform = OCIO::ExponentTransform::Create();
expTransform->setValue(exponent4f);
transform->setDisplayCC(expTransform);
}
OCIO::ConstProcessorRcPtr processor;
try
{
processor = config->getProcessor(transform);
}
catch(OCIO::Exception & e)
{
std::cerr << e.what() << std::endl;
return;
}
catch(...)
{
return;
}
// Step 1: Create the appropriate GPU shader description
OCIO::GpuShaderDescRcPtr shaderDesc
= g_gpulegacy ? OCIO::GpuShaderDesc::CreateLegacyShaderDesc(LUT3D_EDGE_SIZE)
: OCIO::GpuShaderDesc::CreateShaderDesc();
shaderDesc->setLanguage(OCIO::GPU_LANGUAGE_GLSL_1_0);
shaderDesc->setFunctionName("OCIODisplay");
shaderDesc->setResourcePrefix("ocio_");
// Step 2: Collect the shader program information for a specific processor
processor->extractGpuShaderInfo(shaderDesc);
// Step 3: Use the helper OpenGL builder
g_oglBuilder = OpenGLBuilder::Create(shaderDesc);
g_oglBuilder->setVerbose(g_gpuinfo);
// Step 4: Allocate & upload all the LUTs
//
// NB: The start index for the texture indices is 1 as one texture
// was already created for the input image.
//
g_oglBuilder->allocateAllTextures(1);
// Step 5: Build the fragment shader program
g_oglBuilder->buildProgram(g_fragShaderText);
// Step 6: Enable the fragment shader program, and all needed textures
g_oglBuilder->useProgram();
// The image texture
glUniform1i(glGetUniformLocation(g_oglBuilder->getProgramHandle(), "tex1"), 0);
// The LUT textures
g_oglBuilder->useAllTextures();
}