source/blender/render/hydra/python.cc

@@ -16,6 +16,7 @@
 
 #include "final_engine.h"
 #include "preview_engine.h"
+#include "scene_delegate/image.h"
 #include "viewport_engine.h"
 
 namespace blender::render::hydra {
@@ -221,6 +222,20 @@ static PyObject *engine_set_render_setting_func(PyObject * /*self*/, PyObject *a
   Py_RETURN_NONE;
 }
 
+static PyObject *cache_or_get_image_file_func(PyObject * /*self*/, PyObject *args)
+{
+  PyObject *pycontext, *pyimage;
+  if (!PyArg_ParseTuple(args, "OO", &pycontext, &pyimage)) {
+    Py_RETURN_NONE;
+  }
+
+  bContext *context = (bContext *)PyLong_AsVoidPtr(pycontext);
+  Image *image = (Image *)PyLong_AsVoidPtr(pyimage);
+
+  std::string image_path = cache_or_get_image_file(image, context, nullptr);
+  return PyUnicode_FromString(image_path.c_str());
+}
+
 static PyMethodDef methods[] = {
     {"register_plugins", register_plugins_func, METH_VARARGS, ""},
 
@@ -233,6 +248,8 @@ static PyMethodDef methods[] = {
     {"engine_set_sync_setting", engine_set_sync_setting_func, METH_VARARGS, ""},
     {"engine_set_render_setting", engine_set_render_setting_func, METH_VARARGS, ""},
 
+    {"cache_or_get_image_file", cache_or_get_image_file_func, METH_VARARGS, ""},
+
     {NULL, NULL, 0, NULL},
 };
 

source/blender/render/hydra/scene_delegate/image.cc

@@ -4,15 +4,13 @@
 #include <pxr/imaging/hio/imageRegistry.h>
 
 #include "BKE_appdir.h"
-#include "BKE_image.h"
+#include "BKE_image_format.h"
 #include "BKE_image_save.h"
 #include "BLI_fileops.h"
 #include "BLI_path_util.h"
 #include "IMB_imbuf.h"
 #include "IMB_imbuf_types.h"
 
-#include "DNA_windowmanager_types.h"
-
 #include "blender_scene_delegate.h"
 #include "image.h"
 
@@ -32,24 +30,26 @@ static std::string get_cache_file(const std::string &file_name, bool mkdir = tru
 }
 
 static std::string cache_image_file(Image *image,
-                                    BlenderSceneDelegate *scene_delegate,
+                                    bContext *context,
                                     ImageUser *iuser,
                                     bool check_exist)
 {
+  std::string file_path;
+  Main *main = CTX_data_main(context);
+  Scene *scene = CTX_data_scene(context);
+  ImageSaveOptions opts;
+  if (BKE_image_save_options_init(&opts, main, scene, image, iuser, false, false)) {
     char file_name[32];
-  snprintf(file_name, sizeof(file_name), "img_%016llx.hdr", (uintptr_t)image);
+    const char *r_ext;
+    BKE_image_path_ext_from_imformat(&scene->r.im_format, &r_ext);
+    snprintf(file_name, sizeof(file_name), "img_%016llx%s", (uintptr_t)image, r_ext);
 
-  std::string file_path = get_cache_file(file_name);
+    file_path = get_cache_file(file_name);
     if (check_exist && BLI_exists(file_path.c_str())) {
       return file_path;
     }
 
-  Main *main = CTX_data_main(scene_delegate->context);
-  ImageSaveOptions opts;
-  opts.im_format.imtype = R_IMF_IMTYPE_RADHDR;
-
-  if (BKE_image_save_options_init(&opts, main, scene_delegate->scene, image, iuser, false, false))
-  {
+    opts.save_copy = true;
     STRNCPY(opts.filepath, file_path.c_str());
     if (BKE_image_save(nullptr, main, image, iuser, &opts)) {
       CLOG_INFO(LOG_RENDER_HYDRA_SCENE, 1, "%s -> %s", image->id.name, file_path.c_str());
@@ -65,24 +65,22 @@ static std::string cache_image_file(Image *image,
   return file_path;
 }
 
-std::string cache_or_get_image_file(Image *image,
-                                    BlenderSceneDelegate *scene_delegate,
-                                    ImageUser *iuser)
+std::string cache_or_get_image_file(Image *image, bContext *context, ImageUser *iuser)
 {
   std::string file_path;
   if (image->source == IMA_SRC_GENERATED) {
-    file_path = cache_image_file(image, scene_delegate, iuser, false);
+    file_path = cache_image_file(image, context, iuser, false);
   }
   else if (BKE_image_has_packedfile(image)) {
-    file_path = cache_image_file(image, scene_delegate, iuser, true);
+    file_path = cache_image_file(image, context, iuser, true);
   }
   else {
-    Main *main = CTX_data_main(scene_delegate->context);
+    Main *main = CTX_data_main(context);
     file_path.reserve(FILE_MAX);
     BKE_image_user_file_path_ex(main, iuser, image, file_path.data(), false, true);
 
     if (!pxr::HioImageRegistry::GetInstance().IsSupportedImageFile(file_path)) {
-      file_path = cache_image_file(image, scene_delegate, iuser, true);
+      file_path = cache_image_file(image, context, iuser, true);
     }
   }
 

source/blender/render/hydra/scene_delegate/image.h

@@ -3,16 +3,12 @@
 
 #pragma once
 
+#include "BKE_context.h"
 #include "BKE_image.h"
-#include "BKE_image_save.h"
 
 namespace blender::render::hydra {
 
-class BlenderSceneDelegate;
-
-std::string cache_or_get_image_file(Image *image,
-                                    BlenderSceneDelegate *scene_delegate,
-                                    ImageUser *iuser);
+std::string cache_or_get_image_file(Image *image, bContext *context, ImageUser *iuser);
 std::string cache_image_color(float color[4]);
 
 }  // namespace blender::render::hydra

source/blender/render/hydra/scene_delegate/world.cc

@@ -87,7 +87,8 @@ void WorldData::init()
         NodeTexImage *tex = static_cast<NodeTexImage *>(color_input_node->storage);
         Image *image = (Image *)color_input_node->id;
         if (image) {
-          std::string image_path = cache_or_get_image_file(image, scene_delegate_, &tex->iuser);
+          std::string image_path = cache_or_get_image_file(
+              image, scene_delegate_->context, &tex->iuser);
           if (!image_path.empty()) {
             data_[pxr::HdLightTokens->textureFile] = pxr::SdfAssetPath(image_path, image_path);
           }