Merge changes from topic 'vkjson' into nyc-dev

* changes:
  GpuService: Add 'help' and 'vkjson' commands
  Add service "gpu" in the SurfaceFlinger process

1 files changed, 175 insertions, 0 deletions

diff --git a/services/surfaceflinger/GpuService.cpp b/services/surfaceflinger/GpuService.cpp
new file mode 100644
index 0000000000..0c2997191c
--- /dev/null
+++ b/services/surfaceflinger/GpuService.cpp
@@ -0,0 +1,175 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "GpuService.h"
+
+#include <binder/Parcel.h>
+#include <utils/String8.h>
+#include <vkjson.h>
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+class BpGpuService : public BpInterface<IGpuService>
+{
+public:
+    BpGpuService(const sp<IBinder>& impl) : BpInterface<IGpuService>(impl) {}
+};
+
+IMPLEMENT_META_INTERFACE(GpuService, "android.ui.IGpuService");
+
+status_t BnGpuService::onTransact(uint32_t code, const Parcel& data,
+        Parcel* reply, uint32_t flags)
+{
+    switch (code) {
+    case SHELL_COMMAND_TRANSACTION: {
+        int in = data.readFileDescriptor();
+        int out = data.readFileDescriptor();
+        int err = data.readFileDescriptor();
+        int argc = data.readInt32();
+        Vector<String16> args;
+        for (int i = 0; i < argc && data.dataAvail() > 0; i++) {
+           args.add(data.readString16());
+        }
+        return shellCommand(in, out, err, args);
+    }
+
+    default:
+        return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+// ----------------------------------------------------------------------------
+
+namespace {
+    status_t cmd_help(int out);
+    status_t cmd_vkjson(int out, int err);
+}
+
+const char* const GpuService::SERVICE_NAME = "gpu";
+
+GpuService::GpuService() {}
+
+status_t GpuService::shellCommand(int /*in*/, int out, int err,
+        Vector<String16>& args)
+{
+    ALOGV("GpuService::shellCommand");
+    for (size_t i = 0, n = args.size(); i < n; i++)
+        ALOGV("  arg[%zu]: '%s'", i, String8(args[i]).string());
+
+    if (args[0] == String16("vkjson"))
+        return cmd_vkjson(out, err);
+    else if (args[0] == String16("help"))
+        return cmd_help(out);
+
+    return NO_ERROR;
+}
+
+// ----------------------------------------------------------------------------
+
+namespace {
+
+status_t cmd_help(int out) {
+    FILE* outs = fdopen(out, "w");
+    if (!outs) {
+        ALOGE("vkjson: failed to create out stream: %s (%d)", strerror(errno),
+            errno);
+        return BAD_VALUE;
+    }
+    fprintf(outs,
+        "GPU Service commands:\n"
+        "  vkjson   dump Vulkan device capabilities as JSON\n");
+    fclose(outs);
+    return NO_ERROR;
+}
+
+VkResult vkjsonPrint(FILE* out, FILE* err) {
+    VkResult result;
+
+    const VkApplicationInfo app_info = {
+        VK_STRUCTURE_TYPE_APPLICATION_INFO, nullptr,
+        "vkjson", 1,    /* app name, version */
+        "", 0,          /* engine name, version */
+        VK_API_VERSION
+    };
+    const VkInstanceCreateInfo instance_info = {
+        VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO, nullptr,
+        0,              /* flags */
+        &app_info,
+        0, nullptr,     /* layers */
+        0, nullptr,     /* extensions */
+    };
+    VkInstance instance;
+    result = vkCreateInstance(&instance_info, nullptr, &instance);
+    if (result != VK_SUCCESS) {
+        fprintf(err, "vkCreateInstance failed: %d\n", result);
+        return result;
+    }
+
+    uint32_t ngpu = 0;
+    result = vkEnumeratePhysicalDevices(instance, &ngpu, nullptr);
+    if (result != VK_SUCCESS) {
+        fprintf(err, "vkEnumeratePhysicalDevices failed: %d\n", result);
+        return result;
+    }
+    std::vector<VkPhysicalDevice> gpus(ngpu, VK_NULL_HANDLE);
+    result = vkEnumeratePhysicalDevices(instance, &ngpu, gpus.data());
+    if (result != VK_SUCCESS) {
+        fprintf(err, "vkEnumeratePhysicalDevices failed: %d\n", result);
+        return result;
+    }
+
+    for (size_t i = 0, n = gpus.size(); i < n; i++) {
+        auto props = VkJsonGetAllProperties(gpus[i]);
+        std::string json = VkJsonAllPropertiesToJson(props);
+        fwrite(json.data(), 1, json.size(), out);
+        if (i < n - 1)
+            fputc(',', out);
+        fputc('\n', out);
+    }
+
+    vkDestroyInstance(instance, nullptr);
+
+    return VK_SUCCESS;
+}
+
+status_t cmd_vkjson(int out, int err) {
+    int errnum;
+    FILE* outs = fdopen(out, "w");
+    if (!outs) {
+        errnum = errno;
+        ALOGE("vkjson: failed to create output stream: %s", strerror(errnum));
+        return -errnum;
+    }
+    FILE* errs = fdopen(err, "w");
+    if (!errs) {
+        errnum = errno;
+        ALOGE("vkjson: failed to create error stream: %s", strerror(errnum));
+        fclose(outs);
+        return -errnum;
+    }
+    fprintf(outs, "[\n");
+    VkResult result = vkjsonPrint(outs, errs);
+    fprintf(outs, "]\n");
+    fclose(errs);
+    fclose(outs);
+    return result >= 0 ? NO_ERROR : UNKNOWN_ERROR;
+}
+
+} // anonymous namespace
+
+} // namespace android