1 /*
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 #include "LinearEffect.h"
18
19 #define ATRACE_TAG ATRACE_TAG_GRAPHICS
20
21 #include <SkString.h>
22 #include <log/log.h>
23 #include <shaders/shaders.h>
24 #include <utils/Trace.h>
25
26 #include <math/mat4.h>
27
28 namespace android {
29 namespace renderengine {
30 namespace skia {
31
buildRuntimeEffect(const shaders::LinearEffect & linearEffect)32 sk_sp<SkRuntimeEffect> buildRuntimeEffect(const shaders::LinearEffect& linearEffect) {
33 ATRACE_CALL();
34 SkString shaderString = SkString(shaders::buildLinearEffectSkSL(linearEffect));
35
36 auto [shader, error] = SkRuntimeEffect::MakeForShader(shaderString);
37 if (!shader) {
38 LOG_ALWAYS_FATAL("LinearColorFilter construction error: %s", error.c_str());
39 }
40 return shader;
41 }
42
createLinearEffectShader(sk_sp<SkShader> shader,const shaders::LinearEffect & linearEffect,sk_sp<SkRuntimeEffect> runtimeEffect,const mat4 & colorTransform,float maxDisplayLuminance,float currentDisplayLuminanceNits,float maxLuminance,AHardwareBuffer * buffer,aidl::android::hardware::graphics::composer3::RenderIntent renderIntent)43 sk_sp<SkShader> createLinearEffectShader(
44 sk_sp<SkShader> shader, const shaders::LinearEffect& linearEffect,
45 sk_sp<SkRuntimeEffect> runtimeEffect, const mat4& colorTransform, float maxDisplayLuminance,
46 float currentDisplayLuminanceNits, float maxLuminance, AHardwareBuffer* buffer,
47 aidl::android::hardware::graphics::composer3::RenderIntent renderIntent) {
48 ATRACE_CALL();
49 SkRuntimeShaderBuilder effectBuilder(runtimeEffect);
50
51 effectBuilder.child("child") = shader;
52
53 const auto uniforms =
54 shaders::buildLinearEffectUniforms(linearEffect, colorTransform, maxDisplayLuminance,
55 currentDisplayLuminanceNits, maxLuminance, buffer,
56 renderIntent);
57
58 for (const auto& uniform : uniforms) {
59 effectBuilder.uniform(uniform.name.c_str()).set(uniform.value.data(), uniform.value.size());
60 }
61
62 return effectBuilder.makeShader();
63 }
64
65 } // namespace skia
66 } // namespace renderengine
67 } // namespace android
68