1 files changed, 80 insertions, 0 deletions
diff --git a/Source/Asset/Asset/image_sampler.h b/Source/Asset/Asset/image_sampler.h
new file mode 100644
index 00000000..3b43d4f1
--- /dev/null
+++ b/Source/Asset/Asset/image_sampler.h
@@ -0,0 +1,80 @@
+//-----------------------------------------------------------------------------
+//           Name: image_sampler.h
+//      Developer: Wolfire Games LLC
+//    Description:
+//        License: Read below
+//-----------------------------------------------------------------------------
+//
+//
+//   Copyright 2022 Wolfire Games LLC
+//
+//   Licensed under the Apache License, Version 2.0 (the "License");
+//   you may not use this file except in compliance with the License.
+//   You may obtain a copy of the License at
+//
+//       http://www.apache.org/licenses/LICENSE-2.0
+//
+//   Unless required by applicable law or agreed to in writing, software
+//   distributed under the License is distributed on an "AS IS" BASIS,
+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//   See the License for the specific language governing permissions and
+//   limitations under the License.
+//
+//-----------------------------------------------------------------------------
+#pragma once
+
+#include <Internal/integer.h>
+#include <Internal/modid.h>
+
+#include <Asset/assetbase.h>
+#include <Asset/assetinfobase.h>
+#include <Asset/assets.h>
+
+#include <Math/vec4.h>
+#include <Images/freeimage_wrapper.h>
+
+#include <vector>
+
+class ImageSampler : public Asset {    
+    struct byte4 {
+        unsigned char entries[4];
+        inline unsigned char& operator[](int which){return entries[which];}
+    };
+public:
+    ImageSampler( AssetManager* owner, uint32_t asset_id );    
+
+    static AssetType GetType() { return IMAGE_SAMPLER_ASSET; }
+    static const char* GetTypeName() { return "IMAGE_SAMPLER_ASSET"; }
+    static bool AssetWarning() { return true; }
+
+    int sub_error;
+    int Load(const std::string& path, uint32_t load_flags);
+    const char* GetLoadErrorString();
+    const char* GetLoadErrorStringExtended() { return ""; }
+    void Unload();
+    void Reload();
+    virtual void ReportLoad();
+
+    vec4 GetInterpolatedColorUV(float x, float y) const;
+    bool GetCachePath(std::string* dst);
+
+    virtual AssetLoaderBase* NewLoader();
+    
+    ModID modsource_;
+
+private:
+    static const int kImageSamplerCacheVersion = 2;
+
+    byte4 GetPixel( int x, int y ) const;
+    void LoadDataFromFIBitmap(FIBITMAP* image);
+    vec4 GetInterpolatedColor(float x, float y) const;
+    bool ReadCacheFile(const std::string& path, uint16_t checksum);
+    void WriteCacheFile(const std::string& path);
+
+    std::vector<byte4> pixels_;
+    int width_, height_; 
+    uint16_t checksum_;
+
+};
+
+typedef AssetRef<ImageSampler> ImageSamplerRef;