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Fix image parsing (2.0)

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This commit is contained in:
Aurélien Chatelain 2017-05-30 15:04:32 +00:00
parent 0aab1575d5
commit 6d3bfd7e1b
1 changed files with 11 additions and 83 deletions
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94
tiny_gltf_loader.h
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@ -1311,70 +1311,6 @@ static bool ParseStringIntProperty(std::map<std::string, int> *ret,
return true;
}
static bool ParseKHRBinaryExtension(const picojson::object &o, std::string *err,
double *buffer_view,
std::string *mime_type, int *image_width,
int *image_height) {
picojson::object j = o;
if (j.find("extensions") == j.end()) {
if (err) {
(*err) += "`extensions' property is missing.\n";
}
return false;
}
if (!(j["extensions"].is<picojson::object>())) {
if (err) {
(*err) += "Invalid `extensions' property.\n";
}
return false;
}
picojson::object ext = j["extensions"].get<picojson::object>();
if (ext.find("KHR_binary_glTF") == ext.end()) {
if (err) {
(*err) +=
"`KHR_binary_glTF' property is missing in extension property.\n";
}
return false;
}
if (!(ext["KHR_binary_glTF"].is<picojson::object>())) {
if (err) {
(*err) += "Invalid `KHR_binary_glTF' property.\n";
}
return false;
}
picojson::object k = ext["KHR_binary_glTF"].get<picojson::object>();
if (!ParseNumberProperty(buffer_view, err, k, "bufferView", true)) {
return false;
}
if (mime_type) {
ParseStringProperty(mime_type, err, k, "mimeType", false);
}
if (image_width) {
double width = 0.0;
if (ParseNumberProperty(&width, err, k, "width", false)) {
(*image_width) = static_cast<int>(width);
}
}
if (image_height) {
double height = 0.0;
if (ParseNumberProperty(&height, err, k, "height", false)) {
(*image_height) = static_cast<int>(height);
}
}
return true;
}
static bool ParseJSONProperty(std::map<std::string, double> *ret, std::string *err,
const picojson::object &o,
const std::string &property,
@ -1465,34 +1401,26 @@ static bool ParseImage(Image *image, std::string *err,
return false;
}
// There should be "extensions" property.
// "extensions":{"KHR_binary_glTF":{"bufferView": "id", ...
double buffer_view = -1.0;
std::string mime_type;
int image_width;
int image_height;
bool ret = ParseKHRBinaryExtension(o, err, &buffer_view, &mime_type,
&image_width, &image_height);
if (!ret) {
if (!ParseNumberProperty(&buffer_view, err, o, "bufferView", true)) {
return false;
}
if (uri.compare("data:,") == 0) {
// ok
} else {
if (err) {
(*err) += "Invalid URI for binary data.\n";
}
return false;
}
std::string mime_type;
ParseStringProperty(&mime_type, err, o, "mimeType", false);
double width = 0.0;
ParseNumberProperty(&width, err, o, "width", false);
double height = 0.0;
ParseNumberProperty(&height, err, o, "height", false);
// Just only save some information here. Loading actual image data from
// bufferView is done in other place.
image->bufferView = static_cast<int>(buffer_view);
image->mimeType = mime_type;
image->width = image_width;
image->height = image_height;
image->width = static_cast<int>(width);
image->height = static_cast<int>(height);
return true;
}