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John Reck67b1e2b2020-08-26 13:17:24 -07001/*
2 * Copyright 2020 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef SF_SKIARENDERENGINE_H_
18#define SF_SKIARENDERENGINE_H_
19
20#include <renderengine/RenderEngine.h>
21#include <sys/types.h>
22
Lingfeng Yang00c1ff62022-06-02 09:19:28 -070023#include <GrBackendSemaphore.h>
24#include <GrDirectContext.h>
25#include <SkSurface.h>
26#include <android-base/thread_annotations.h>
27#include <renderengine/ExternalTexture.h>
28#include <renderengine/RenderEngine.h>
29#include <sys/types.h>
30
31#include <mutex>
32#include <unordered_map>
33
34#include "AutoBackendTexture.h"
35#include "GrContextOptions.h"
36#include "SkImageInfo.h"
37#include "SkiaRenderEngine.h"
38#include "android-base/macros.h"
39#include "debug/SkiaCapture.h"
40#include "filters/BlurFilter.h"
41#include "filters/LinearEffect.h"
42#include "filters/StretchShaderFactory.h"
43
44class SkData;
45
46struct SkPoint3;
47
John Reck67b1e2b2020-08-26 13:17:24 -070048namespace android {
49
50namespace renderengine {
51
52class Mesh;
53class Texture;
54
55namespace skia {
56
57class BlurFilter;
58
Alec Mouri081be4c2020-09-16 10:24:47 -070059class SkiaRenderEngine : public RenderEngine {
John Reck67b1e2b2020-08-26 13:17:24 -070060public:
61 static std::unique_ptr<SkiaRenderEngine> create(const RenderEngineCreationArgs& args);
Lingfeng Yang00c1ff62022-06-02 09:19:28 -070062 SkiaRenderEngine(RenderEngineType type,
63 PixelFormat pixelFormat,
64 bool useColorManagement,
65 bool supportsBackgroundBlur);
66 ~SkiaRenderEngine() override;
John Reck67b1e2b2020-08-26 13:17:24 -070067
Lingfeng Yang00c1ff62022-06-02 09:19:28 -070068 std::future<void> primeCache() override final;
69 void cleanupPostRender() override final;
70 void cleanFramebufferCache() override final{ }
71 bool isProtected() const override final{ return mInProtectedContext; }
72 bool supportsBackgroundBlur() override final {
73 return mBlurFilter != nullptr;
74 }
75 void onActiveDisplaySizeChanged(ui::Size size) override final;
76 int reportShadersCompiled();
Alec Mouria90a5702021-04-16 16:36:21 +000077
Lingfeng Yang00c1ff62022-06-02 09:19:28 -070078 virtual void genTextures(size_t /*count*/, uint32_t* /*names*/) override final{};
79 virtual void deleteTextures(size_t /*count*/, uint32_t const* /*names*/) override final{};
80 virtual void setEnableTracing(bool tracingEnabled) override final;
81
82 void useProtectedContext(bool useProtectedContext) override;
83 bool supportsProtectedContent() const override {
84 return supportsProtectedContentImpl();
85 }
86 void ensureGrContextsCreated();
Alec Mouria90a5702021-04-16 16:36:21 +000087protected:
Lingfeng Yang00c1ff62022-06-02 09:19:28 -070088 // This is so backends can stop the generic rendering state first before
89 // cleaning up backend-specific state
90 void finishRenderingAndAbandonContext();
Sally Qi4cabdd02021-08-05 16:45:57 -070091
Lingfeng Yang00c1ff62022-06-02 09:19:28 -070092 // Functions that a given backend (GLES, Vulkan) must implement
93 using Contexts = std::pair<sk_sp<GrDirectContext>, sk_sp<GrDirectContext>>;
94 virtual Contexts createDirectContexts(const GrContextOptions& options) = 0;
95 virtual bool supportsProtectedContentImpl() const = 0;
96 virtual bool useProtectedContextImpl(GrProtected isProtected) = 0;
97 virtual void waitFence(GrDirectContext* grContext, base::borrowed_fd fenceFd) = 0;
98 virtual base::unique_fd flushAndSubmit(GrDirectContext* context) = 0;
99 virtual void appendBackendSpecificInfoToDump(std::string& result) = 0;
100
101 size_t getMaxTextureSize() const override final;
102 size_t getMaxViewportDims() const override final;
103 GrDirectContext* getActiveGrContext();
104
105 // Implements PersistentCache as a way to monitor what SkSL shaders Skia has
106 // cached.
107 class SkSLCacheMonitor : public GrContextOptions::PersistentCache {
108 public:
109 SkSLCacheMonitor() = default;
110 ~SkSLCacheMonitor() override = default;
111
112 sk_sp<SkData> load(const SkData& key) override;
113
114 void store(const SkData& key, const SkData& data, const SkString& description) override;
115
116 int shadersCachedSinceLastCall() {
117 const int shadersCachedSinceLastCall = mShadersCachedSinceLastCall;
118 mShadersCachedSinceLastCall = 0;
119 return shadersCachedSinceLastCall;
120 }
121
122 int totalShadersCompiled() const { return mTotalShadersCompiled; }
123
124 private:
125 int mShadersCachedSinceLastCall = 0;
126 int mTotalShadersCompiled = 0;
Sally Qi4cabdd02021-08-05 16:45:57 -0700127 };
Lingfeng Yang00c1ff62022-06-02 09:19:28 -0700128
129private:
130 void mapExternalTextureBuffer(const sp<GraphicBuffer>& buffer,
131 bool isRenderable) override final;
132 void unmapExternalTextureBuffer(const sp<GraphicBuffer>& buffer) override final;
133 bool canSkipPostRenderCleanup() const override final;
134
135 void initCanvas(SkCanvas* canvas, const DisplaySettings& display);
136 void drawShadow(SkCanvas* canvas, const SkRRect& casterRRect,
137 const ShadowSettings& shadowSettings);
Patrick Williams2e9748f2022-08-09 22:48:18 +0000138 void drawLayersInternal(const std::shared_ptr<std::promise<FenceResult>>&& resultPromise,
Lingfeng Yang00c1ff62022-06-02 09:19:28 -0700139 const DisplaySettings& display,
140 const std::vector<LayerSettings>& layers,
141 const std::shared_ptr<ExternalTexture>& buffer,
142 const bool useFramebufferCache,
143 base::unique_fd&& bufferFence) override final;
144
145 void dump(std::string& result) override final;
146
147 // If requiresLinearEffect is true or the layer has a stretchEffect a new shader is returned.
148 // Otherwise it returns the input shader.
149 struct RuntimeEffectShaderParameters {
150 sk_sp<SkShader> shader;
151 const LayerSettings& layer;
152 const DisplaySettings& display;
153 bool undoPremultipliedAlpha;
154 bool requiresLinearEffect;
155 float layerDimmingRatio;
156 };
157 sk_sp<SkShader> createRuntimeEffectShader(const RuntimeEffectShaderParameters&);
158
159 const PixelFormat mDefaultPixelFormat;
160 const bool mUseColorManagement;
161
162 // Identifier used for various mappings of layers to various
163 // textures or shaders
164 using GraphicBufferId = uint64_t;
165
166 // Number of external holders of ExternalTexture references, per GraphicBuffer ID.
167 std::unordered_map<GraphicBufferId, int32_t> mGraphicBufferExternalRefs
168 GUARDED_BY(mRenderingMutex);
169 // Cache of GL textures that we'll store per GraphicBuffer ID, shared between GPU contexts.
170 std::unordered_map<GraphicBufferId, std::shared_ptr<AutoBackendTexture::LocalRef>> mTextureCache
171 GUARDED_BY(mRenderingMutex);
172 std::unordered_map<shaders::LinearEffect, sk_sp<SkRuntimeEffect>, shaders::LinearEffectHasher>
173 mRuntimeEffects;
174 AutoBackendTexture::CleanupManager mTextureCleanupMgr GUARDED_BY(mRenderingMutex);
175
176 StretchShaderFactory mStretchShaderFactory;
177
178 sp<Fence> mLastDrawFence;
179 BlurFilter* mBlurFilter = nullptr;
180
181 // Object to capture commands send to Skia.
182 std::unique_ptr<SkiaCapture> mCapture;
183
184 // Mutex guarding rendering operations, so that internal state related to
185 // rendering that is potentially modified by multiple threads is guaranteed thread-safe.
186 mutable std::mutex mRenderingMutex;
187 SkSLCacheMonitor mSkSLCacheMonitor;
188
189 // Graphics context used for creating surfaces and submitting commands
190 sk_sp<GrDirectContext> mGrContext;
191 // Same as above, but for protected content (eg. DRM)
192 sk_sp<GrDirectContext> mProtectedGrContext;
193 bool mInProtectedContext = false;
John Reck67b1e2b2020-08-26 13:17:24 -0700194};
195
196} // namespace skia
197} // namespace renderengine
198} // namespace android
199
Leon Scroggins IIIb9216dc2021-03-08 17:19:01 -0500200#endif /* SF_GLESRENDERENGINE_H_ */