1 /*
2  * Copyright 2017 Google Inc.
3  *
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7 
8 #ifndef TestAtlasTextRenderer_DEFINED
9 #define TestAtlasTextRenderer_DEFINED
10 
11 #include "include/atlastext/SkAtlasTextRenderer.h"
12 #include "include/core/SkBitmap.h"
13 
14 namespace sk_gpu_test {
15 
16 class TestContext;
17 
18 /**
19  * Base class for implementations of SkAtlasTextRenderer in order to test the SkAtlasText APIs.
20  * Adds a helper for creating SkAtlasTextTargets and to read back the contents of a target as a
21  * bitmap.
22  */
23 class TestAtlasTextRenderer : public SkAtlasTextRenderer {
24 public:
25     /** Returns a handle that can be used to construct a SkAtlasTextTarget instance. */
26     virtual void* makeTargetHandle(int width, int height) = 0;
27 
28     /** Makes a SkBitmap of the target handle's contents. */
29     virtual SkBitmap readTargetHandle(void* targetHandle) = 0;
30 
31     /** Clears the target to the specified color, encoded as RGBA (low to high byte order) */
32     virtual void clearTarget(void* targetHandle, uint32_t color) = 0;
33 };
34 
35 }  // namespace sk_gpu_test
36 
37 #endif
38