1 files changed, 44 insertions, 0 deletions
diff --git a/android_webview/public/browser/draw_sw.h b/android_webview/public/browser/draw_sw.h
new file mode 100644
index 0000000..e2e1dbf
--- /dev/null
+++ b/android_webview/public/browser/draw_sw.h
@@ -0,0 +1,44 @@
+// Copyright (c) 2012 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 ANDROID_WEBVIEW_PUBLIC_BROWSER_DRAW_SW_H_
+#define ANDROID_WEBVIEW_PUBLIC_BROWSER_DRAW_SW_H_
+
+#include <jni.h>
+#include <stddef.h>
+
+#ifndef __cplusplus
+#error "Can't mix C and C++ when using jni.h"
+#endif
+
+// Holds the information required to implement the SW draw to system canvas.
+struct AwPixelInfo {
+  int config;         // In SkBitmap::Config format.
+  int width;          // In pixels.
+  int height;         // In pixels.
+  int row_bytes;      // Number of bytes from start of one line to next.
+  void* pixels;       // The pixels, all (height * row_bytes) of them.
+  float matrix[9];    // The matrix currently in effect on the canvas.
+  void* clip_region;  // Flattened clip region.
+  size_t clip_region_size;   // Number of bytes in |clip_region|.
+};
+
+// Function that can be called to fish out the underlying native pixel data
+// from a Java canvas object, for optimized rendering path.
+// Returns the pixel info on success, which must be freed via a call to
+// AwReleasePixelsFunction, or NULL.
+typedef AwPixelInfo* (AwAccessPixelsFunction)(JNIEnv* env, jobject canvas);
+
+// Must be called to balance every *successful* call to AwAccessPixelsFunction
+// (i.e. that returned true).
+typedef void (AwReleasePixelsFunction)(AwPixelInfo* pixels);
+
+// "vtable" for the functions declared in this file. An instance must be set via
+// AwContents.setAwDrawSWFunctionTable
+struct AwDrawSWFunctionTable {
+  AwAccessPixelsFunction* access_pixels;
+  AwReleasePixelsFunction* release_pixels;
+};
+
+#endif  // ANDROID_WEBVIEW_PUBLIC_BROWSER_DRAW_SW_H_