xref: /aosp_15_r20/external/skia/tools/gpu/TestCanvas.h (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1*c8dee2aaSAndroid Build Coastguard Worker /*
2*c8dee2aaSAndroid Build Coastguard Worker  * Copyright 2022 Google LLC
3*c8dee2aaSAndroid Build Coastguard Worker  *
4*c8dee2aaSAndroid Build Coastguard Worker  * Use of this source code is governed by a BSD-style license that can be
5*c8dee2aaSAndroid Build Coastguard Worker  * found in the LICENSE file.
6*c8dee2aaSAndroid Build Coastguard Worker  */
7*c8dee2aaSAndroid Build Coastguard Worker 
8*c8dee2aaSAndroid Build Coastguard Worker // TestCanvas is a simple way to make a testing canvas which is allowed to use private
9*c8dee2aaSAndroid Build Coastguard Worker // facilities of SkCanvas without having to add a friend to SkCanvas.h.
10*c8dee2aaSAndroid Build Coastguard Worker //
11*c8dee2aaSAndroid Build Coastguard Worker // You create a Key (a simple empty struct) to make a template specialization class. You need to
12*c8dee2aaSAndroid Build Coastguard Worker // make a key for each of the different Canvases you need. The implementations of the canvases
13*c8dee2aaSAndroid Build Coastguard Worker // are in SkCanvas.cpp, which allows the use of helper classes.
14*c8dee2aaSAndroid Build Coastguard Worker 
15*c8dee2aaSAndroid Build Coastguard Worker #ifndef TestCanvas_DEFINED
16*c8dee2aaSAndroid Build Coastguard Worker #define TestCanvas_DEFINED
17*c8dee2aaSAndroid Build Coastguard Worker 
18*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkCanvas.h"
19*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkRefCnt.h"
20*c8dee2aaSAndroid Build Coastguard Worker #include "include/private/chromium/SkChromeRemoteGlyphCache.h"
21*c8dee2aaSAndroid Build Coastguard Worker 
22*c8dee2aaSAndroid Build Coastguard Worker #include <memory>
23*c8dee2aaSAndroid Build Coastguard Worker 
24*c8dee2aaSAndroid Build Coastguard Worker class SkPaint;
25*c8dee2aaSAndroid Build Coastguard Worker 
26*c8dee2aaSAndroid Build Coastguard Worker namespace sktext { class GlyphRunList; }
27*c8dee2aaSAndroid Build Coastguard Worker 
28*c8dee2aaSAndroid Build Coastguard Worker namespace skiatest {
29*c8dee2aaSAndroid Build Coastguard Worker 
30*c8dee2aaSAndroid Build Coastguard Worker // You can only make template specializations of TestCanvas.
31*c8dee2aaSAndroid Build Coastguard Worker template <typename Key> class TestCanvas;
32*c8dee2aaSAndroid Build Coastguard Worker 
33*c8dee2aaSAndroid Build Coastguard Worker // A test canvas to test using slug rendering instead of text blob rendering.
34*c8dee2aaSAndroid Build Coastguard Worker struct SkSlugTestKey {};
35*c8dee2aaSAndroid Build Coastguard Worker template <>
36*c8dee2aaSAndroid Build Coastguard Worker class TestCanvas<SkSlugTestKey> : public SkCanvas {
37*c8dee2aaSAndroid Build Coastguard Worker public:
38*c8dee2aaSAndroid Build Coastguard Worker     TestCanvas(SkCanvas* canvas);
39*c8dee2aaSAndroid Build Coastguard Worker     void onDrawGlyphRunList(
40*c8dee2aaSAndroid Build Coastguard Worker             const sktext::GlyphRunList& glyphRunList, const SkPaint& paint) override;
41*c8dee2aaSAndroid Build Coastguard Worker };
42*c8dee2aaSAndroid Build Coastguard Worker 
43*c8dee2aaSAndroid Build Coastguard Worker struct SkSerializeSlugTestKey {};
44*c8dee2aaSAndroid Build Coastguard Worker template <>
45*c8dee2aaSAndroid Build Coastguard Worker class TestCanvas<SkSerializeSlugTestKey> : public SkCanvas {
46*c8dee2aaSAndroid Build Coastguard Worker public:
47*c8dee2aaSAndroid Build Coastguard Worker     TestCanvas(SkCanvas* canvas);
48*c8dee2aaSAndroid Build Coastguard Worker     void onDrawGlyphRunList(
49*c8dee2aaSAndroid Build Coastguard Worker             const sktext::GlyphRunList& glyphRunList, const SkPaint& paint) override;
50*c8dee2aaSAndroid Build Coastguard Worker };
51*c8dee2aaSAndroid Build Coastguard Worker 
52*c8dee2aaSAndroid Build Coastguard Worker struct SkRemoteSlugTestKey {};
53*c8dee2aaSAndroid Build Coastguard Worker template <>
54*c8dee2aaSAndroid Build Coastguard Worker class TestCanvas<SkRemoteSlugTestKey> : public SkCanvas {
55*c8dee2aaSAndroid Build Coastguard Worker public:
56*c8dee2aaSAndroid Build Coastguard Worker     TestCanvas(SkCanvas* canvas);
57*c8dee2aaSAndroid Build Coastguard Worker     ~TestCanvas() override;
58*c8dee2aaSAndroid Build Coastguard Worker     void onDrawGlyphRunList(
59*c8dee2aaSAndroid Build Coastguard Worker             const sktext::GlyphRunList& glyphRunList, const SkPaint& paint) override;
60*c8dee2aaSAndroid Build Coastguard Worker 
61*c8dee2aaSAndroid Build Coastguard Worker private:
62*c8dee2aaSAndroid Build Coastguard Worker     std::unique_ptr<SkStrikeServer::DiscardableHandleManager> fServerHandleManager;
63*c8dee2aaSAndroid Build Coastguard Worker     sk_sp<SkStrikeClient::DiscardableHandleManager> fClientHandleManager;
64*c8dee2aaSAndroid Build Coastguard Worker     SkStrikeServer fStrikeServer;
65*c8dee2aaSAndroid Build Coastguard Worker     SkStrikeClient fStrikeClient;
66*c8dee2aaSAndroid Build Coastguard Worker };
67*c8dee2aaSAndroid Build Coastguard Worker 
68*c8dee2aaSAndroid Build Coastguard Worker }  // namespace skiatest
69*c8dee2aaSAndroid Build Coastguard Worker 
70*c8dee2aaSAndroid Build Coastguard Worker #endif  // TestCanvas_DEFINED
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