GpuService: Add cmdFeatureOverrides

Add 'cmd gpu featureOverrides' to output the current FeatureOverrides
that were parsed by FeatureOverrideParser.

The feature overrides are intended to be used by
getPlatformDisplayAngle() in a later CL, to modify the behavior of
ANGLE.

Bug: 372694741
Test: cmd gpu featureOverrides
Flag: com.android.graphics.graphicsenv.flags.feature_overrides
Change-Id: I04c142fc6e0fd920315e41b36954c45cf032afb3

Author: timvpGoogle

services/gpuservice/Android.bp

@@ -39,6 +39,7 @@ cc_aconfig_library {
 cc_defaults {
     name: "libgpuservice_defaults",
     defaults: [
+        "aconfig_lib_cc_static_link.defaults",
         "gpuservice_defaults",
         "libfeatureoverride_deps",
         "libgfxstats_deps",

services/gpuservice/GpuService.cpp

@@ -25,8 +25,10 @@
 #include <binder/Parcel.h>
 #include <binder/PermissionCache.h>
 #include <com_android_frameworks_gpuservice_flags.h>
+#include <com_android_graphics_graphicsenv_flags.h>
 #include <cutils/properties.h>
 #include <cutils/multiuser.h>
+#include <feature_override/FeatureOverrideParser.h>
 #include <gpumem/GpuMem.h>
 #include <gpuwork/GpuWork.h>
 #include <gpustats/GpuStats.h>
@@ -41,6 +43,7 @@
 #include <memory>
 
 namespace gpuservice_flags = com::android::frameworks::gpuservice::flags;
+namespace graphicsenv_flags = com::android::graphics::graphicsenv::flags;
 
 namespace android {
 
@@ -143,7 +146,6 @@ void GpuService::toggleAngleAsSystemDriver(bool enabled) {
     }
 }
 
-
 void GpuService::setUpdatableDriverPath(const std::string& driverPath) {
     IPCThreadState* ipc = IPCThreadState::self();
     const int pid = ipc->getCallingPid();
@@ -171,7 +173,11 @@ status_t GpuService::shellCommand(int /*in*/, int out, int err, std::vector<Stri
     for (size_t i = 0, n = args.size(); i < n; i++)
         ALOGV("  arg[%zu]: '%s'", i, String8(args[i]).c_str());
 
-    if (args.size() >= 1) {
+    if (!args.empty()) {
+        if (graphicsenv_flags::feature_overrides()) {
+            if (args[0] == String16("featureOverrides"))
+                return cmdFeatureOverrides(out, err);
+        }
         if (args[0] == String16("vkjson")) return cmdVkjson(out, err);
         if (args[0] == String16("vkprofiles")) return cmdVkprofiles(out, err);
         if (args[0] == String16("help")) return cmdHelp(out);
@@ -235,6 +241,11 @@ status_t GpuService::doDump(int fd, const Vector<String16>& args, bool /*asProto
     return NO_ERROR;
 }
 
+status_t GpuService::cmdFeatureOverrides(int out, int /*err*/) {
+    dprintf(out, "%s\n", mFeatureOverrideParser.getFeatureOverrides().toString().c_str());
+    return NO_ERROR;
+}
+
 namespace {
 
 status_t cmdHelp(int out) {
@@ -247,6 +258,10 @@ status_t cmdHelp(int out) {
             "GPU Service commands:\n"
             "  vkjson      dump Vulkan properties as JSON\n"
             "  vkprofiles  print support for select Vulkan profiles\n");
+    if (graphicsenv_flags::feature_overrides()) {
+        fprintf(outs,
+                "  featureOverrides  update and output gpuservice's feature overrides\n");
+    }
     fclose(outs);
     return NO_ERROR;
 }

services/gpuservice/include/gpuservice/GpuService.h

@@ -86,6 +86,8 @@ class GpuService : public BnGpuService, public PriorityDumper {
 
     status_t doDump(int fd, const Vector<String16>& args, bool asProto);
 
+    status_t cmdFeatureOverrides(int out, int /*err*/);
+
     /*
      * Attributes
      */