// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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//
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//******************************************************************************
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// This is a copy of the coresponding android_webview/public/browser header.
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// Any changes to the interface should be made there.
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//
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// The purpose of having the copy is twofold:
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// - it removes the need to have Chromium sources present in the tree in order
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// to build the plat_support library,
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// - it captures API that the corresponding Android release supports.
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//******************************************************************************
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#ifndef ANDROID_WEBVIEW_PUBLIC_BROWSER_DRAW_SW_H_
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#define ANDROID_WEBVIEW_PUBLIC_BROWSER_DRAW_SW_H_
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#include <jni.h>
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#include <stddef.h>
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#ifndef __cplusplus
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#error "Can't mix C and C++ when using jni.h"
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#endif
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class SkCanvasState;
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class SkPicture;
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static const int kAwPixelInfoVersion = 3;
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// Holds the information required to implement the SW draw to system canvas.
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struct AwPixelInfo {
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int version; // The kAwPixelInfoVersion this struct was built with.
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SkCanvasState* state; // The externalize state in skia format.
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// NOTE: If you add more members, bump kAwPixelInfoVersion.
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};
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// Function that can be called to fish out the underlying native pixel data
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// from a Java canvas object, for optimized rendering path.
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// Returns the pixel info on success, which must be freed via a call to
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// AwReleasePixelsFunction, or NULL.
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typedef AwPixelInfo* (AwAccessPixelsFunction)(JNIEnv* env, jobject canvas);
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// Must be called to balance every *successful* call to AwAccessPixelsFunction
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// (i.e. that returned true).
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typedef void (AwReleasePixelsFunction)(AwPixelInfo* pixels);
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// Called to create an Android Picture object encapsulating a native SkPicture.
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typedef jobject (AwCreatePictureFunction)(JNIEnv* env, SkPicture* picture);
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// Method that returns the current Skia function.
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typedef void (SkiaVersionFunction)(int* major, int* minor, int* patch);
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// Called to verify if the Skia versions are compatible.
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typedef bool (AwIsSkiaVersionCompatibleFunction)(SkiaVersionFunction function);
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static const int kAwDrawSWFunctionTableVersion = 1;
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// "vtable" for the functions declared in this file. An instance must be set via
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// AwContents.setAwDrawSWFunctionTable
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struct AwDrawSWFunctionTable {
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int version;
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AwAccessPixelsFunction* access_pixels;
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AwReleasePixelsFunction* release_pixels;
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};
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#endif // ANDROID_WEBVIEW_PUBLIC_BROWSER_DRAW_SW_H_
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