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Unified Diff: webkit/port/platform/graphics/skia/public/PlatformDeviceMac.h

Issue 11357: Move the platform files form port to skia for Mac only. Hopefully this won't ... (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: '' Created 12 years, 1 month ago
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Index: webkit/port/platform/graphics/skia/public/PlatformDeviceMac.h
===================================================================
--- webkit/port/platform/graphics/skia/public/PlatformDeviceMac.h (revision 5826)
+++ webkit/port/platform/graphics/skia/public/PlatformDeviceMac.h (working copy)
@@ -1,86 +0,0 @@
-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef PlatformDeviceMac_h
-#define PlatformDeviceMac_h
-
-#import <ApplicationServices/ApplicationServices.h>
-#include "SkDevice.h"
-
-class SkMatrix;
-class SkPath;
-class SkRegion;
-
-namespace gfx {
-
-// A device is basically a wrapper around SkBitmap that provides a surface for
-// SkCanvas to draw into. Our device provides a surface CoreGraphics can also
-// write to. It also provides functionality to play well with CG drawing
-// functions.
-// This class is abstract and must be subclassed. It provides the basic
-// interface to implement it either with or without a bitmap backend.
-class PlatformDeviceMac : public SkDevice {
- public:
- // The CGContext that corresponds to the bitmap, used for CoreGraphics
- // operations drawing into the bitmap. This is possibly heavyweight, so it
- // should exist only during one pass of rendering.
- virtual CGContextRef GetBitmapContext() = 0;
-
- // Draws to the given graphics context. If the bitmap context doesn't exist,
- // this will temporarily create it. However, if you have created the bitmap
- // context, it will be more efficient if you don't free it until after this
- // call so it doesn't have to be created twice. If src_rect is null, then
- // the entirety of the source device will be copied.
- virtual void DrawToContext(CGContextRef context, int x, int y,
- const CGRect* src_rect) = 0;
-
- // Sets the opacity of each pixel in the specified region to be opaque.
- void makeOpaque(int x, int y, int width, int height);
-
- // Returns if the preferred rendering engine is vectorial or bitmap based.
- virtual bool IsVectorial() = 0;
-
- // On platforms where the native rendering API does not support rendering
- // into bitmaps with a premultiplied alpha channel, this call is responsible
- // for doing any fixup necessary. It is not used on the Mac, since
- // CoreGraphics can handle premultiplied alpha just fine.
- virtual void fixupAlphaBeforeCompositing() = 0;
-
- // Initializes the default settings and colors in a device context.
- static void InitializeCGContext(CGContextRef context);
-
- // Loads a SkPath into the CG context. The path can there after be used for
- // clipping or as a stroke.
- static void LoadPathToCGContext(CGContextRef context, const SkPath& path);
-
- // Loads a SkRegion into the CG context.
- static void LoadClippingRegionToCGContext(CGContextRef context,
- const SkRegion& region,
- const SkMatrix& transformation);
-
- protected:
- // Forwards |bitmap| to SkDevice's constructor.
- PlatformDeviceMac(const SkBitmap& bitmap);
-
- // Loads the specified Skia transform into the device context
- static void LoadTransformToCGContext(CGContextRef context,
- const SkMatrix& matrix);
-
- // Function pointer used by the processPixels method for setting the alpha
- // value of a particular pixel.
- typedef void (*adjustAlpha)(uint32_t* pixel);
-
- // Loops through each of the pixels in the specified range, invoking
- // adjustor for the alpha value of each pixel.
- virtual void processPixels(int x,
- int y,
- int width,
- int height,
- adjustAlpha adjustor) = 0;
-};
-
-} // namespace gfx
-
-#endif // PlatformDeviceMac_h
-

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