bool
ImageBuf::read (int subimage, int miplevel, bool force, TypeDesc convert,
ProgressCallback progress_callback,
void *progress_callback_data)
{
if (pixels_valid() && !force &&
subimage == this->subimage() && miplevel == this->miplevel())
return true;
if (! init_spec (m_name.string(), subimage, miplevel)) {
m_badfile = true;
m_spec_valid = false;
return false;
}
// Set our current spec to the requested subimage
if (! m_imagecache->get_imagespec (m_name, m_spec, subimage, miplevel) ||
! m_imagecache->get_imagespec (m_name, m_nativespec, subimage, miplevel, true)) {
m_err = m_imagecache->geterror ();
return false;
}
m_current_subimage = subimage;
m_current_miplevel = miplevel;
#if 1
// If we don't already have "local" pixels, and we aren't asking to
// convert the pixels to a specific (and different) type, then take an
// early out by relying on the cache.
int peltype = TypeDesc::UNKNOWN;
m_imagecache->get_image_info (m_name, subimage, miplevel,
ustring("cachedpixeltype"),
TypeDesc::TypeInt, &peltype);
m_cachedpixeltype = TypeDesc ((TypeDesc::BASETYPE)peltype);
if (! m_localpixels && ! force &&
(convert == m_cachedpixeltype || convert == TypeDesc::UNKNOWN)) {
m_spec.format = m_cachedpixeltype;
#ifdef DEBUG
std::cerr << "read was not necessary -- using cache\n";
#endif
return true;
} else {
#ifdef DEBUG
std::cerr << "going to have to read " << m_name << ": "
<< m_spec.format.c_str() << " vs " << convert.c_str() << "\n";
#endif
}
#endif
if (convert != TypeDesc::UNKNOWN)
m_spec.format = convert;
m_orientation = m_spec.get_int_attribute ("orientation", 1);
m_pixelaspect = m_spec.get_float_attribute ("pixelaspectratio", 1.0f);
realloc ();
if (m_imagecache->get_pixels (m_name, subimage, miplevel,
m_spec.x, m_spec.x+m_spec.width,
m_spec.y, m_spec.y+m_spec.height,
m_spec.z, m_spec.z+m_spec.depth,
m_spec.format, &m_pixels[0])) {
m_pixels_valid = true;
m_localpixels = true;
} else {
m_pixels_valid = false;
m_err = m_imagecache->geterror ();
}
return m_pixels_valid;
}
bool
OpenEXROutput::put_parameter (const std::string &name, TypeDesc type,
const void *data)
{
// Translate
std::string xname = name;
if (istarts_with (xname, "oiio:"))
return false;
else if (iequals(xname, "worldtocamera"))
xname = "worldToCamera";
else if (iequals(xname, "worldtoscreen"))
xname = "worldToNDC";
else if (iequals(xname, "DateTime"))
xname = "capDate";
else if (iequals(xname, "description") || iequals(xname, "ImageDescription"))
xname = "comments";
else if (iequals(xname, "Copyright"))
xname = "owner";
else if (iequals(xname, "PixelAspectRatio"))
xname = "pixelAspectRatio";
else if (iequals(xname, "ExposureTime"))
xname = "expTime";
else if (iequals(xname, "FNumber"))
xname = "aperture";
else if (istarts_with (xname, format_prefix))
xname = std::string (xname.begin()+format_prefix.size(), xname.end());
// std::cerr << "exr put '" << name << "' -> '" << xname << "'\n";
// Special cases
if (iequals(xname, "Compression") && type == TypeDesc::STRING) {
const char *str = *(char **)data;
m_header->compression() = Imf::ZIP_COMPRESSION; // Default
if (str) {
if (iequals (str, "none"))
m_header->compression() = Imf::NO_COMPRESSION;
else if (iequals (str, "deflate") || iequals (str, "zip"))
m_header->compression() = Imf::ZIP_COMPRESSION;
else if (iequals (str, "rle"))
m_header->compression() = Imf::RLE_COMPRESSION;
else if (iequals (str, "zips"))
m_header->compression() = Imf::ZIPS_COMPRESSION;
else if (iequals (str, "piz"))
m_header->compression() = Imf::PIZ_COMPRESSION;
else if (iequals (str, "pxr24"))
m_header->compression() = Imf::PXR24_COMPRESSION;
#ifdef IMF_B44_COMPRESSION
// The enum Imf::B44_COMPRESSION is not defined in older versions
// of OpenEXR, and there are no explicit version numbers in the
// headers. BUT this other related #define is present only in
// the newer version.
else if (iequals (str, "b44"))
m_header->compression() = Imf::B44_COMPRESSION;
else if (iequals (str, "b44a"))
m_header->compression() = Imf::B44A_COMPRESSION;
#endif
}
return true;
}
if (iequals (xname, "openexr:lineOrder") && type == TypeDesc::STRING) {
const char *str = *(char **)data;
m_header->lineOrder() = Imf::INCREASING_Y; // Default
if (str) {
if (iequals (str, "randomY"))
m_header->lineOrder() = Imf::RANDOM_Y;
else if (iequals (str, "decreasingY"))
m_header->lineOrder() = Imf::DECREASING_Y;
}
return true;
}
// Supress planarconfig!
if (iequals (xname, "planarconfig") || iequals (xname, "tiff:planarconfig"))
return true;
// General handling of attributes
// FIXME -- police this if we ever allow arrays
if (type == TypeDesc::INT || type == TypeDesc::UINT) {
m_header->insert (xname.c_str(), Imf::IntAttribute (*(int*)data));
return true;
}
if (type == TypeDesc::INT16) {
m_header->insert (xname.c_str(), Imf::IntAttribute (*(short*)data));
return true;
}
if (type == TypeDesc::UINT16) {
m_header->insert (xname.c_str(), Imf::IntAttribute (*(unsigned short*)data));
return true;
}
if (type == TypeDesc::FLOAT) {
m_header->insert (xname.c_str(), Imf::FloatAttribute (*(float*)data));
return true;
}
if (type == TypeDesc::HALF) {
m_header->insert (xname.c_str(), Imf::FloatAttribute ((float)*(half*)data));
return true;
}
if (type == TypeDesc::TypeMatrix) {
m_header->insert (xname.c_str(), Imf::M44fAttribute (*(Imath::M44f*)data));
return true;
}
if (type == TypeDesc::TypeString) {
m_header->insert (xname.c_str(), Imf::StringAttribute (*(char**)data));
return true;
}
if (type == TypeDesc::TypeVector) {
m_header->insert (xname.c_str(), Imf::V3fAttribute (*(Imath::V3f*)data));
return true;
}
#ifdef DEBUG
std::cerr << "Don't know what to do with " << type.c_str() << ' ' << xname << "\n";
#endif
return false;
}
std::string
ShaderGroup::serialize () const
{
std::ostringstream out;
out.imbue (std::locale::classic()); // force C locale
out.precision (9);
lock_guard lock (m_mutex);
for (int i = 0, nl = nlayers(); i < nl; ++i) {
const ShaderInstance *inst = m_layers[i].get();
bool dstsyms_exist = inst->symbols().size();
for (int p = 0; p < inst->lastparam(); ++p) {
const Symbol *s = dstsyms_exist ? inst->symbol(p) : inst->mastersymbol(p);
ASSERT (s);
if (s->symtype() != SymTypeParam && s->symtype() != SymTypeOutputParam)
continue;
Symbol::ValueSource vs = dstsyms_exist ? s->valuesource()
: inst->instoverride(p)->valuesource();
if (vs == Symbol::InstanceVal) {
TypeDesc type = s->typespec().simpletype();
int offset = s->dataoffset();
if (type.is_unsized_array() && ! dstsyms_exist) {
// If we're being asked to serialize a group that isn't
// yet optimized, any "unsized" arrays will have their
// concrete length and offset in the SymOverrideInfo,
// not in the Symbol belonging to the instance.
type.arraylen = inst->instoverride(p)->arraylen();
offset = inst->instoverride(p)->dataoffset();
}
out << "param " << type << ' ' << s->name();
int nvals = type.numelements() * type.aggregate;
if (type.basetype == TypeDesc::INT) {
const int *vals = &inst->m_iparams[offset];
for (int i = 0; i < nvals; ++i)
out << ' ' << vals[i];
} else if (type.basetype == TypeDesc::FLOAT) {
const float *vals = &inst->m_fparams[offset];
for (int i = 0; i < nvals; ++i)
out << ' ' << vals[i];
} else if (type.basetype == TypeDesc::STRING) {
const ustring *vals = &inst->m_sparams[offset];
for (int i = 0; i < nvals; ++i)
out << ' ' << '\"' << Strutil::escape_chars(vals[i]) << '\"';
} else {
ASSERT_MSG (0, "unknown type for serialization: %s (%s)",
type.c_str(), s->typespec().c_str());
}
bool lockgeom = dstsyms_exist ? s->lockgeom()
: inst->instoverride(p)->lockgeom();
if (! lockgeom)
out << Strutil::sprintf (" [[int lockgeom=%d]]", lockgeom);
out << " ;\n";
}
}
out << "shader " << inst->shadername() << ' ' << inst->layername() << " ;\n";
for (int c = 0, nc = inst->nconnections(); c < nc; ++c) {
const Connection &con (inst->connection(c));
ASSERT (con.srclayer >= 0);
const ShaderInstance *srclayer = m_layers[con.srclayer].get();
ASSERT (srclayer);
ustring srclayername = srclayer->layername();
ASSERT (con.src.param >= 0 && con.dst.param >= 0);
bool srcsyms_exist = srclayer->symbols().size();
ustring srcparam = srcsyms_exist ? srclayer->symbol(con.src.param)->name()
: srclayer->mastersymbol(con.src.param)->name();
ustring dstparam = dstsyms_exist ? inst->symbol(con.dst.param)->name()
: inst->mastersymbol(con.dst.param)->name();
// FIXME: Assertions to be sure we don't yet support individual
// channel or array element connections. Fix eventually.
ASSERT (con.src.arrayindex == -1 && con.src.channel == -1);
ASSERT (con.dst.arrayindex == -1 && con.dst.channel == -1);
out << "connect " << srclayername << '.' << srcparam << ' '
<< inst->layername() << '.' << dstparam << " ;\n";
}
}
return out.str();
}
OSL_SHADEOP int
osl_getmessage (ShaderGlobals *sg, const char *source_, const char *name_,
long long type_, void *val, int derivs,
int layeridx, const char* sourcefile_, int sourceline)
{
const ustring &source (USTR(source_));
const ustring &name (USTR(name_));
const ustring &sourcefile (USTR(sourcefile_));
// recreate TypeDesc -- we just crammed it into an int!
TypeDesc type (*(TypeDesc *)&type_);
bool is_closure = (type.basetype == TypeDesc::UNKNOWN); // secret code for closure
if (is_closure)
type.basetype = TypeDesc::PTR; // for closures, we store a pointer
static ustring ktrace ("trace");
if (source == ktrace) {
// Source types where we need to ask the renderer
RendererServices *renderer = sg->context->renderer();
return renderer->getmessage (sg, source, name, type, val, derivs);
}
MessageList &messages (sg->context->messages());
const Message* m = messages.find(name);
if (m != NULL) {
if (m->name == name) {
if (m->type != type) {
// found message, but types don't match
sg->context->error(
"type mismatch for message \"%s\" (%s as %s here: %s:%d)"
" cannot fetch as %s from %s:%d",
name.c_str(),
m->has_data() ? "created" : "queried",
m->type == TypeDesc::PTR ? "closure color" : m->type.c_str(),
m->sourcefile.c_str(),
m->sourceline,
is_closure ? "closure color" : type.c_str(),
sourcefile.c_str(),
sourceline);
return 0;
}
if (!m->has_data()) {
// getmessage ran before and found nothing - just return 0
return 0;
}
if (m->layeridx > layeridx) {
// found message, but was set by a layer deeper than the one querying the message
sg->context->error(
"message \"%s\" was set by layer #%d (%s:%d)"
" but is being queried by layer #%d (%s:%d)"
" - messages may only be transfered from nodes "
"that appear earlier in the shading network",
name.c_str(),
m->layeridx,
m->sourcefile.c_str(),
m->sourceline,
layeridx,
sourcefile.c_str(),
sourceline);
return 0;
}
// Message found!
size_t size = type.size();
memcpy (val, m->data, size);
if (derivs) // TODO: move this to llvm code gen?
memset (((char *)val)+size, 0, 2*size);
return 1;
}
}
// Message not found -- we must record this event in case another layer tries to set the message again later on
if (sg->context->shadingsys().strict_messages())
messages.add(name, NULL, type, layeridx, sourcefile, sourceline);
return 0;
}
