commit f4cb4a001eb33c6ceedce46b52fb29453dda3a4b
author Lucas Dupin <dupin@google.com> Tue Sep 22 14:19:26 2020 -0700
committer Lucas Dupin <dupin@google.com> Mon Sep 28 15:36:47 2020 -0700
tree 4e89756622b6de49e53cc3a6b6b6070fa2a2df2a
parent 3f11e9255f6547a842ba5c7cf5a99a293e0b924c

Port background blurs to SkiaRE

Bug: 164223050
Test: manual
Test: atest LayerTypeAndRenderTypeTransactionTest
Change-Id: I459780d9fd408865d1d9713f37bf308f07c4fdfc

libs/renderengine/skia/SkiaGLRenderEngine.cpp

diff --git a/libs/renderengine/skia/SkiaGLRenderEngine.cpp b/libs/renderengine/skia/SkiaGLRenderEngine.cpp
index cb752b0..0fed08b 100644
--- a/libs/renderengine/skia/SkiaGLRenderEngine.cpp
+++ b/libs/renderengine/skia/SkiaGLRenderEngine.cpp
@@ -29,12 +29,14 @@
 #include <utils/Trace.h>
 #include "../gl/GLExtensions.h"
 #include "SkiaGLRenderEngine.h"
+#include "filters/BlurFilter.h"
 
 #include <GrContextOptions.h>
 #include <gl/GrGLInterface.h>
 
 #include <SkCanvas.h>
 #include <SkImage.h>
+#include <SkImageFilters.h>
 #include <SkShadowUtils.h>
 #include <SkSurface.h>
 
@@ -194,7 +196,7 @@
 
     // initialize the renderer while GL is current
     std::unique_ptr<SkiaGLRenderEngine> engine =
-            std::make_unique<SkiaGLRenderEngine>(display, config, ctxt, placeholder,
+            std::make_unique<SkiaGLRenderEngine>(args, display, config, ctxt, placeholder,
                                                  protectedContext, protectedPlaceholder);
 
     ALOGI("OpenGL ES informations:");
@@ -247,9 +249,9 @@
     return config;
 }
 
-SkiaGLRenderEngine::SkiaGLRenderEngine(EGLDisplay display, EGLConfig config, EGLContext ctxt,
-                                       EGLSurface placeholder, EGLContext protectedContext,
-                                       EGLSurface protectedPlaceholder)
+SkiaGLRenderEngine::SkiaGLRenderEngine(const RenderEngineCreationArgs& args, EGLDisplay display,
+                                       EGLConfig config, EGLContext ctxt, EGLSurface placeholder,
+                                       EGLContext protectedContext, EGLSurface protectedPlaceholder)
       : mEGLDisplay(display),
         mEGLConfig(config),
         mEGLContext(ctxt),
@@ -273,6 +275,10 @@
     options.fPreferExternalImagesOverES3 = true;
     options.fDisableDistanceFieldPaths = true;
     mGrContext = GrDirectContext::MakeGL(std::move(glInterface), options);
+
+    if (args.supportsBackgroundBlur) {
+        mBlurFilter = new BlurFilter();
+    }
 }
 
 base::unique_fd SkiaGLRenderEngine::flush() {
@@ -408,6 +414,11 @@
         const auto& bounds = layer->geometry.boundaries;
         const auto dest = getSkRect(bounds);
 
+        if (layer->backgroundBlurRadius > 0) {
+            ATRACE_NAME("BackgroundBlur");
+            mBlurFilter->draw(canvas, surface, layer->backgroundBlurRadius);
+        }
+
         if (layer->source.buffer.buffer) {
             ATRACE_NAME("DrawImage");
             const auto& item = layer->source.buffer;