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Merge pull request #860 from overte-org/feature/gltf_webp

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Added WebP support for binary glTF
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ksuprynowicz 2024-03-09 17:33:11 +01:00 committed by GitHub
commit bd14f39f66
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GPG key ID: B5690EEEBB952194
1 changed files with 24 additions and 5 deletions
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29
libraries/model-serializers/src/GLTFSerializer.cpp
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@ -1270,8 +1270,27 @@ HFMTexture GLTFSerializer::getHFMTexture(const cgltf_texture *texture) {
HFMTexture hfmTex = HFMTexture();
hfmTex.texcoordSet = 0;
if (texture->image) {
QString url = texture->image->uri;
auto image = texture->image;
// Check for WebP extension
for (size_t i = 0; i < texture->extensions_count; i++) {
auto &extension = texture->extensions[i];
if (extension.name != nullptr
&& strcmp(extension.name, "EXT_texture_webp") == 0
&& extension.data != nullptr) {
QJsonDocument webPExtension = QJsonDocument::fromJson(extension.data);
if (!webPExtension.isNull() && webPExtension["source"].isDouble()) {
int imageIndex = webPExtension["source"].isDouble();
if (imageIndex > 0 && (size_t)imageIndex < _data->images_count) {
image = &_data->images[(int)(webPExtension["source"].toDouble())];
break;
}
}
}
}
if (image) {
QString url = image->uri;
QString fileName = hifi::URL(url).fileName();
hifi::URL textureUrl = _url.resolved(url);
@ -1279,13 +1298,13 @@ HFMTexture GLTFSerializer::getHFMTexture(const cgltf_texture *texture) {
hfmTex.filename = textureUrl.toEncoded();
if (_url.path().endsWith("glb")) {
cgltf_buffer_view *bufferView = texture->image->buffer_view;
cgltf_buffer_view *bufferView = image->buffer_view;
size_t offset = bufferView->offset;
size_t length = bufferView->size;
size_t imageIndex = 0;
if (!findPointerInArray(texture->image, _data->images, _data->images_count, imageIndex)) {
if (!findPointerInArray(image, _data->images, _data->images_count, imageIndex)) {
// This should never happen. It would mean a bug in cgltf library.
qDebug(modelformat) << "GLTFSerializer::getHFMTexture: can't find texture in the array";
return hfmTex;
@ -1296,7 +1315,7 @@ HFMTexture GLTFSerializer::getHFMTexture(const cgltf_texture *texture) {
return hfmTex;
}
hfmTex.content = QByteArray(static_cast<const char *>(bufferView->buffer->data) + offset, length);
hfmTex.filename = textureUrl.toEncoded().append(imageIndex);
hfmTex.filename = textureUrl.toEncoded().append(QString::number(imageIndex).toUtf8());
}
if (url.contains("data:image/jpeg;base64,") || url.contains("data:image/png;base64,") || url.contains("data:image/webp;base64,")) {