Remove Float32ImageData and update ImageData for color management

third_party/WebKit/Source/core/html/ImageData.h

Index: third_party/WebKit/Source/core/html/ImageData.h
diff --git a/third_party/WebKit/Source/core/html/ImageData.h b/third_party/WebKit/Source/core/html/ImageData.h
index 246a4cf85b0998060150d1977261f9bc0692c9b4..392ad60055bfb4e7547e39ad08982383115795d2 100644
--- a/third_party/WebKit/Source/core/html/ImageData.h
+++ b/third_party/WebKit/Source/core/html/ImageData.h
@@ -30,9 +30,11 @@
 #define ImageData_h
 
 #include "bindings/core/v8/ScriptWrappable.h"
+#include "bindings/core/v8/Uint8ClampedArrayOrUint16ArrayOrFloat32Array.h"
 #include "core/CoreExport.h"
-#include "core/dom/DOMArrayBufferView.h"
 #include "core/dom/DOMTypedArray.h"
+#include "core/html/ImageDataColorSettings.h"
+#include "core/html/canvas/CanvasRenderingContext.h"
 #include "core/imagebitmap/ImageBitmapSource.h"
 #include "platform/geometry/IntRect.h"
 #include "platform/geometry/IntSize.h"
@@ -47,28 +49,24 @@ namespace blink {
 class ExceptionState;
 class ImageBitmapOptions;
 
+typedef Uint8ClampedArrayOrUint16ArrayOrFloat32Array ImageDataArray;
+
 enum ConstructorParams {
   kParamSize = 1,
   kParamWidth = 1 << 1,
   kParamHeight = 1 << 2,
   kParamData = 1 << 3,
-  kParamColorSpace = 1 << 4,
-};
-
-enum ImageDataType {
-  kUint8ClampedImageData,
-  kFloat32ImageData,
 };
 
-enum ImageDataColorSpace {
-  kLegacyImageDataColorSpace,
-  kSRGBImageDataColorSpace,
-  kLinearRGBImageDataColorSpace,
+enum ImageDataStorageFormat {
+  kUint8ClampedArrayStorageFormat,
+  kUint16ArrayStorageFormat,
+  kFloat32ArrayStorageFormat,
 };
 
-const char* const kLinearRGBImageDataColorSpaceName = "linear-rgb";
-const char* const kSRGBImageDataColorSpaceName = "srgb";
-const char* const kLegacyImageDataColorSpaceName = "legacy-srgb";
+constexpr const char* kUint8ClampedArrayStorageFormatName = "uint8";
+constexpr const char* kUint16ArrayStorageFormatName = "uint16";
+constexpr const char* kFloat32ArrayStorageFormatName = "float32";
 
 class CORE_EXPORT ImageData final : public GarbageCollectedFinalized<ImageData>,
                                     public ScriptWrappable,
@@ -78,9 +76,7 @@ class CORE_EXPORT ImageData final : public GarbageCollectedFinalized<ImageData>,
  public:
   static ImageData* create(const IntSize&);
   static ImageData* create(const IntSize&, DOMUint8ClampedArray*);
-  static ImageData* create(const IntSize&,
-                           DOMUint8ClampedArray*,
-                           const String&);
+
   static ImageData* create(unsigned width, unsigned height, ExceptionState&);
   static ImageData* create(DOMUint8ClampedArray*,
                            unsigned width,
@@ -94,30 +90,31 @@ class CORE_EXPORT ImageData final : public GarbageCollectedFinalized<ImageData>,
 
   ImageData* createImageData(unsigned width,
                              unsigned height,
-                             String colorSpace,
+                             const ImageDataColorSettings&,
                              ExceptionState&);
-  ImageData* createImageData(DOMUint8ClampedArray*,
-                             unsigned width,
-                             String colorSpace,
-                             ExceptionState&);
-  ImageData* createImageData(DOMUint8ClampedArray*,
+  ImageData* createImageData(ImageDataArray&,
                              unsigned width,
                              unsigned height,
-                             String colorSpace,
+                             const ImageDataColorSettings&,
                              ExceptionState&);
 
-  static ImageDataColorSpace getImageDataColorSpace(String);
-  static String getImageDataColorSpaceName(ImageDataColorSpace);
-  static sk_sp<SkColorSpace> imageDataColorSpaceToSkColorSpace(
-      ImageDataColorSpace);
+  static ImageDataStorageFormat getImageDataStorageFormat(const String&);
 
   IntSize size() const { return m_size; }
   int width() const { return m_size.width(); }
   int height() const { return m_size.height(); }
-  String colorSpace() const { return getImageDataColorSpaceName(m_colorSpace); }
-  ImageDataColorSpace imageDataColorSpace() { return m_colorSpace; }
-  const DOMUint8ClampedArray* data() const { return m_data.get(); }
-  DOMUint8ClampedArray* data() { return m_data.get(); }
+
+  DOMUint8ClampedArray* data();
+  const DOMUint8ClampedArray* data() const;
+  ImageDataArray& dataUnion() { return m_dataUnion; }
+  const ImageDataArray& dataUnion() const { return m_dataUnion; }
+  void dataUnion(ImageDataArray& result) { result = m_dataUnion; };
+  const ImageDataColorSettings& colorSettings() const {
+    return m_colorSettings;
+  }
+  void colorSettings(ImageDataColorSettings& result) {
+    result = m_colorSettings;
+  };
 
   sk_sp<SkColorSpace> getSkColorSpace();
 
@@ -129,34 +126,35 @@ class CORE_EXPORT ImageData final : public GarbageCollectedFinalized<ImageData>,
                                   const ImageBitmapOptions&,
                                   ExceptionState&) override;
 
-  DEFINE_INLINE_TRACE() { visitor->trace(m_data); }
+  void trace(Visitor*);
 
   WARN_UNUSED_RESULT v8::Local<v8::Object> associateWithWrapper(
       v8::Isolate*,
       const WrapperTypeInfo*,
       v8::Local<v8::Object> wrapper) override;
 
-  static bool validateConstructorArguments(
-      const unsigned&,
-      const IntSize* = nullptr,
-      const unsigned& = 0,
-      const unsigned& = 0,
-      const DOMArrayBufferView* = nullptr,
-      const String* = nullptr,
-      ExceptionState* = nullptr,
-      ImageDataType = kUint8ClampedImageData);
+  static bool validateConstructorArguments(const unsigned&,
+                                           const IntSize* = nullptr,
+                                           const unsigned& = 0,
+                                           const unsigned& = 0,
+                                           const DOMArrayBufferView* = nullptr,
+                                           ExceptionState* = nullptr);
 
  private:
   ImageData(const IntSize&,
-            DOMUint8ClampedArray*,
-            String = kLegacyImageDataColorSpaceName);
+            DOMArrayBufferView*,
+            const ImageDataColorSettings* = nullptr);
 
   IntSize m_size;
-  ImageDataColorSpace m_colorSpace;
+  ImageDataColorSettings m_colorSettings;
+  ImageDataArray m_dataUnion;
   Member<DOMUint8ClampedArray> m_data;
+  Member<DOMUint16Array> m_dataU16;
+  Member<DOMFloat32Array> m_dataF32;
 
-  static DOMUint8ClampedArray* allocateAndValidateUint8ClampedArray(
+  static DOMArrayBufferView* allocateAndValidateDataArray(
       const unsigned&,
+      ImageDataStorageFormat,
       ExceptionState* = nullptr);
 };