Trace each config option in RenderEngine's shader priming

This adds minimal tracing overhead compared to the significant tracing
already being done for these draw calls, and may help downstream
developers better understand how each configuration option contributes
to device boot time.

Test: presubmit
Bug: N/A
Flag: NONE trivial debug tracing
Change-Id: I9ed45e3a57223eb6c4f4af78c05c72facb3941ce

Author: nscobie

libs/renderengine/skia/Cache.cpp

@@ -14,6 +14,9 @@
  * limitations under the License.
  */
 #include "Cache.h"
+
+#define ATRACE_TAG ATRACE_TAG_GRAPHICS
+
 #include "AutoBackendTexture.h"
 #include "SkiaRenderEngine.h"
 #include "android-base/unique_fd.h"
@@ -28,6 +31,7 @@
 #include "utils/Timers.h"
 
 #include <com_android_graphics_libgui_flags.h>
+#include <common/trace.h>
 
 namespace android::renderengine::skia {
 
@@ -659,6 +663,7 @@ static void drawEdgeExtensionLayers(SkiaRenderEngine* renderengine, const Displa
 // in external/skia/src/gpu/gl/builders/GrGLShaderStringBuilder.cpp
 //    gPrintSKSL = true
 void Cache::primeShaderCache(SkiaRenderEngine* renderengine, PrimeCacheConfig config) {
+    SFTRACE_CALL();
     const int previousCount = renderengine->reportShadersCompiled();
     if (previousCount) {
         ALOGD("%d Shaders already compiled before Cache::primeShaderCache ran\n", previousCount);
@@ -724,24 +729,29 @@ void Cache::primeShaderCache(SkiaRenderEngine* renderengine, PrimeCacheConfig co
                                                impl::ExternalTexture::Usage::WRITEABLE);
 
         if (config.cacheHolePunchLayer) {
+            SFTRACE_NAME("cacheHolePunchLayer");
             drawHolePunchLayer(renderengine, display, dstTexture);
         }
 
         if (config.cacheSolidLayers) {
+            SFTRACE_NAME("cacheSolidLayers");
             drawSolidLayers(renderengine, display, dstTexture);
             drawSolidLayers(renderengine, p3Display, dstTexture);
         }
 
         if (config.cacheSolidDimmedLayers) {
+            SFTRACE_NAME("cacheSolidDimmedLayers");
             drawSolidDimmedLayers(renderengine, display, dstTexture);
         }
 
         if (config.cacheShadowLayers) {
+            SFTRACE_NAME("cacheShadowLayers");
             drawShadowLayers(renderengine, display, srcTexture);
             drawShadowLayers(renderengine, p3Display, srcTexture);
         }
 
         if (renderengine->supportsBackgroundBlur()) {
+            SFTRACE_NAME("supportsBackgroundBlur");
             drawBlurLayers(renderengine, display, dstTexture);
         }
 
@@ -776,32 +786,38 @@ void Cache::primeShaderCache(SkiaRenderEngine* renderengine, PrimeCacheConfig co
 
         for (auto texture : textures) {
             if (config.cacheImageLayers) {
+                SFTRACE_NAME("cacheImageLayers");
                 drawImageLayers(renderengine, display, dstTexture, texture);
             }
 
             if (config.cacheImageDimmedLayers) {
+                SFTRACE_NAME("cacheImageDimmedLayers");
                 drawImageDimmedLayers(renderengine, display, dstTexture, texture);
                 drawImageDimmedLayers(renderengine, p3Display, dstTexture, texture);
                 drawImageDimmedLayers(renderengine, bt2020Display, dstTexture, texture);
             }
 
             if (config.cacheClippedLayers) {
+                SFTRACE_NAME("cacheClippedLayers");
                 // Draw layers for b/185569240.
                 drawClippedLayers(renderengine, display, dstTexture, texture);
             }
 
             if (com::android::graphics::libgui::flags::edge_extension_shader() &&
                 config.cacheEdgeExtension) {
+                SFTRACE_NAME("cacheEdgeExtension");
                 drawEdgeExtensionLayers(renderengine, display, dstTexture, texture);
                 drawEdgeExtensionLayers(renderengine, p3Display, dstTexture, texture);
             }
         }
 
         if (config.cachePIPImageLayers) {
+            SFTRACE_NAME("cachePIPImageLayers");
             drawPIPImageLayer(renderengine, display, dstTexture, externalTexture);
         }
 
         if (config.cacheTransparentImageDimmedLayers) {
+            SFTRACE_NAME("cacheTransparentImageDimmedLayers");
             drawTransparentImageDimmedLayers(renderengine, bt2020Display, dstTexture,
                                              externalTexture);
             drawTransparentImageDimmedLayers(renderengine, display, dstTexture, externalTexture);
@@ -811,10 +827,12 @@ void Cache::primeShaderCache(SkiaRenderEngine* renderengine, PrimeCacheConfig co
         }
 
         if (config.cacheClippedDimmedImageLayers) {
+            SFTRACE_NAME("cacheClippedDimmedImageLayers");
             drawClippedDimmedImageLayers(renderengine, bt2020Display, dstTexture, externalTexture);
         }
 
         if (config.cacheUltraHDR) {
+            SFTRACE_NAME("cacheUltraHDR");
             drawBT2020ClippedImageLayers(renderengine, bt2020Display, dstTexture, externalTexture);
 
             drawBT2020ImageLayers(renderengine, bt2020Display, dstTexture, externalTexture);
@@ -833,7 +851,10 @@ void Cache::primeShaderCache(SkiaRenderEngine* renderengine, PrimeCacheConfig co
         };
         auto layers = std::vector<LayerSettings>{layer};
         // call get() to make it synchronous
-        renderengine->drawLayers(display, layers, dstTexture, base::unique_fd()).get();
+        {
+            SFTRACE_NAME("finalLayer");
+            renderengine->drawLayers(display, layers, dstTexture, base::unique_fd()).get();
+        }
 
         const nsecs_t timeAfter = systemTime();
         const float compileTimeMs = static_cast<float>(timeAfter - timeBefore) / 1.0E6;