1 /*
2 * Copyright (c) 2021-2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "render/rs_blur_filter.h"
17
18 #include "src/core/SkOpts.h"
19
20 #include "common/rs_common_def.h"
21
22 #include "platform/common/rs_system_properties.h"
23
24 #ifndef USE_ROSEN_DRAWING
25 #if defined(NEW_SKIA)
26 #include "include/core/SkTileMode.h"
27 #include "include/effects/SkImageFilters.h"
28 #else
29 #include "include/effects/SkBlurImageFilter.h"
30 #endif
31 #endif
32
33 namespace OHOS {
34 namespace Rosen {
35 #ifndef USE_ROSEN_DRAWING
36 #if defined(NEW_SKIA)
37 std::shared_ptr<KawaseBlurFilter> RSBlurFilter::kawaseFunc_ = std::make_shared<KawaseBlurFilter>();
RSBlurFilter(float blurRadiusX,float blurRadiusY)38 RSBlurFilter::RSBlurFilter(float blurRadiusX, float blurRadiusY): RSSkiaFilter(SkImageFilters::Blur(blurRadiusX,
39 blurRadiusY, SkTileMode::kClamp, nullptr)), blurRadiusX_(blurRadiusX),
40 blurRadiusY_(blurRadiusY)
41 {
42 type_ = FilterType::BLUR;
43
44 hash_ = SkOpts::hash(&type_, sizeof(type_), 0);
45 hash_ = SkOpts::hash(&blurRadiusX, sizeof(blurRadiusX), hash_);
46 hash_ = SkOpts::hash(&blurRadiusY, sizeof(blurRadiusY), hash_);
47 useKawase_ = RSSystemProperties::GetKawaseEnabled();
48 }
49 #else
50 RSBlurFilter::RSBlurFilter(float blurRadiusX, float blurRadiusY): RSSkiaFilter(SkBlurImageFilter::Make(blurRadiusX,
51 blurRadiusY, nullptr, nullptr, SkBlurImageFilter::kClamp_TileMode)), blurRadiusX_(blurRadiusX),
52 blurRadiusY_(blurRadiusY)
53 {
54 type_ = FilterType::BLUR;
55
56 hash_ = SkOpts::hash(&type_, sizeof(type_), 0);
57 hash_ = SkOpts::hash(&blurRadiusX, sizeof(blurRadiusX), hash_);
58 hash_ = SkOpts::hash(&blurRadiusY, sizeof(blurRadiusY), hash_);
59 }
60 #endif
61 #else
62 RSBlurFilter::RSBlurFilter(float blurRadiusX, float blurRadiusY) : RSDrawingFilter(
63 Drawing::ImageFilter::CreateBlurImageFilter(blurRadiusX, blurRadiusY, Drawing::TileMode::CLAMP, nullptr)),
64 blurRadiusX_(blurRadiusX),
65 blurRadiusY_(blurRadiusY)
66 {
67 type_ = FilterType::BLUR;
68
69 hash_ = SkOpts::hash(&type_, sizeof(type_), 0);
70 hash_ = SkOpts::hash(&blurRadiusX, sizeof(blurRadiusX), hash_);
71 hash_ = SkOpts::hash(&blurRadiusY, sizeof(blurRadiusY), hash_);
72 }
73 #endif
74
75 RSBlurFilter::~RSBlurFilter() = default;
76
GetBlurRadiusX()77 float RSBlurFilter::GetBlurRadiusX()
78 {
79 return blurRadiusX_;
80 }
81
GetBlurRadiusY()82 float RSBlurFilter::GetBlurRadiusY()
83 {
84 return blurRadiusY_;
85 }
86
GetDescription()87 std::string RSBlurFilter::GetDescription()
88 {
89 return "RSBlurFilter blur radius is " + std::to_string(blurRadiusX_) + " sigma";
90 }
91
IsValid() const92 bool RSBlurFilter::IsValid() const
93 {
94 constexpr float epsilon = 0.001f;
95 if (ROSEN_EQ(blurRadiusX_, 0.f, epsilon) && ROSEN_EQ(blurRadiusY_, 0.f, epsilon)) {
96 return false;
97 }
98 return true;
99 }
100
101 #ifndef USE_ROSEN_DRAWING
Compose(const std::shared_ptr<RSSkiaFilter> & other) const102 std::shared_ptr<RSSkiaFilter> RSBlurFilter::Compose(const std::shared_ptr<RSSkiaFilter>& other) const
103 #else
104 std::shared_ptr<RSDrawingFilter> RSBlurFilter::Compose(const std::shared_ptr<RSDrawingFilter>& other) const
105 #endif
106 {
107 std::shared_ptr<RSBlurFilter> result = std::make_shared<RSBlurFilter>(blurRadiusX_, blurRadiusY_);
108 #ifndef USE_ROSEN_DRAWING
109 result->imageFilter_ = SkImageFilters::Compose(imageFilter_, other->GetImageFilter());
110 #else
111 result->imageFilter_ = Drawing::ImageFilter::CreateComposeImageFilter(imageFilter_, other->GetImageFilter());
112 #endif
113 auto otherHash = other->Hash();
114 result->hash_ = SkOpts::hash(&otherHash, sizeof(otherHash), hash_);
115 return result;
116 }
117
Add(const std::shared_ptr<RSFilter> & rhs)118 std::shared_ptr<RSFilter> RSBlurFilter::Add(const std::shared_ptr<RSFilter>& rhs)
119 {
120 if ((rhs == nullptr) || (rhs->GetFilterType() != FilterType::BLUR)) {
121 return shared_from_this();
122 }
123 auto blurR = std::static_pointer_cast<RSBlurFilter>(rhs);
124 return std::make_shared<RSBlurFilter>(
125 blurRadiusX_ + blurR->GetBlurRadiusX(), blurRadiusY_ + blurR->GetBlurRadiusY());
126 }
127
Sub(const std::shared_ptr<RSFilter> & rhs)128 std::shared_ptr<RSFilter> RSBlurFilter::Sub(const std::shared_ptr<RSFilter>& rhs)
129 {
130 if ((rhs == nullptr) || (rhs->GetFilterType() != FilterType::BLUR)) {
131 return shared_from_this();
132 }
133 auto blurR = std::static_pointer_cast<RSBlurFilter>(rhs);
134 return std::make_shared<RSBlurFilter>(
135 blurRadiusX_ - blurR->GetBlurRadiusX(), blurRadiusY_ - blurR->GetBlurRadiusY());
136 }
137
Multiply(float rhs)138 std::shared_ptr<RSFilter> RSBlurFilter::Multiply(float rhs)
139 {
140 return std::make_shared<RSBlurFilter>(blurRadiusX_ * rhs, blurRadiusY_ * rhs);
141 }
142
Negate()143 std::shared_ptr<RSFilter> RSBlurFilter::Negate()
144 {
145 return std::make_shared<RSBlurFilter>(-blurRadiusX_, -blurRadiusY_);
146 }
147
148 #ifndef USE_ROSEN_DRAWING
DrawImageRect(SkCanvas & canvas,const sk_sp<SkImage> & image,const SkRect & src,const SkRect & dst) const149 void RSBlurFilter::DrawImageRect(
150 SkCanvas& canvas, const sk_sp<SkImage>& image, const SkRect& src, const SkRect& dst) const
151 #else
152 void RSBlurFilter::DrawImageRect(Drawing::Canvas& canvas, const std::shared_ptr<Drawing::Image>& image,
153 const Drawing::Rect& src, const Drawing::Rect& dst) const
154 #endif
155 {
156 #ifndef USE_ROSEN_DRAWING
157 auto paint = GetPaint();
158 #ifdef NEW_SKIA
159 // if kawase blur failed, use gauss blur
160 KawaseParameter param = KawaseParameter(src, dst, blurRadiusX_, nullptr, paint.getAlphaf());
161 if (useKawase_ && kawaseFunc_->ApplyKawaseBlur(canvas, image, param)) {
162 return;
163 }
164 canvas.drawImageRect(image.get(), src, dst, SkSamplingOptions(), &paint, SkCanvas::kStrict_SrcRectConstraint);
165 #else
166 canvas.drawImageRect(image.get(), src, dst, &paint);
167 #endif
168 #else
169 auto brush = GetBrush();
170 canvas.AttachBrush(brush);
171 canvas.DrawImageRect(*image, src, dst, Drawing::SamplingOptions());
172 canvas.DetachBrush();
173 #endif
174 }
175
CanSkipFrame() const176 bool RSBlurFilter::CanSkipFrame() const
177 {
178 constexpr float HEAVY_BLUR_THRESHOLD = 25.0f;
179 return blurRadiusX_ > HEAVY_BLUR_THRESHOLD && blurRadiusY_ > HEAVY_BLUR_THRESHOLD;
180 };
181 } // namespace Rosen
182 } // namespace OHOS
183