upgrade to Filament 1.21.0

ios/include/ibl/Image.h

@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * 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.
+ */
+
+#ifndef IBL_IMAGE_H
+#define IBL_IMAGE_H
+
+#include <math/scalar.h>
+#include <math/vec3.h>
+#include <math/vec4.h>
+
+#include <utils/compiler.h>
+
+#include <memory>
+
+namespace filament {
+namespace ibl {
+
+class UTILS_PUBLIC Image {
+public:
+    Image();
+    Image(size_t w, size_t h, size_t stride = 0);
+
+    void reset();
+
+    void set(Image const& image);
+
+    void subset(Image const& image, size_t x, size_t y, size_t w, size_t h);
+
+    bool isValid() const { return mData != nullptr; }
+
+    size_t getWidth() const { return mWidth; }
+
+    size_t getStride() const { return mBpr / getBytesPerPixel(); }
+
+    size_t getHeight() const { return mHeight; }
+
+    size_t getBytesPerRow() const { return mBpr; }
+
+    size_t getBytesPerPixel() const { return sizeof(math::float3); }
+
+    void* getData() const { return mData; }
+
+    size_t getSize() const { return mBpr * mHeight; }
+
+    void* getPixelRef(size_t x, size_t y) const;
+
+    std::unique_ptr<uint8_t[]> detach() { return std::move(mOwnedData); }
+
+private:
+    size_t mBpr = 0;
+    size_t mWidth = 0;
+    size_t mHeight = 0;
+    std::unique_ptr<uint8_t[]> mOwnedData;
+    void* mData = nullptr;
+};
+
+inline void* Image::getPixelRef(size_t x, size_t y) const {
+    return static_cast<uint8_t*>(mData) + y * getBytesPerRow() + x * getBytesPerPixel();
+}
+
+} // namespace ibl
+} // namespace filament
+
+#endif /* IBL_IMAGE_H */