119 lines
4.1 KiB
119 lines
4.1 KiB
// Copyright 2017 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "NativeGpuInfo.h"
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#include "base/PathUtils.h"
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#include "base/ScopedFd.h"
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#include "base/FileUtils.h"
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#include "base/System.h"
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#include <string>
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using android::base::PathUtils;
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using android::base::ScopedFd;
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static const int kGPUInfoQueryTimeoutMs = 5000;
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// static std::string load_gpu_info() {
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// // Execute the command to get GPU info.
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// return System::get()
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// ->runCommandWithResult({"lspci", "-mvnn"}, kGPUInfoQueryTimeoutMs)
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// .valueOr({});
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// }
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static std::string parse_last_hexbrackets(const std::string& str) {
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size_t closebrace_p = str.rfind("]");
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size_t openbrace_p = str.rfind("[", closebrace_p - 1);
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return str.substr(openbrace_p + 1, closebrace_p - openbrace_p - 1);
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}
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void parse_gpu_info_list_linux(const std::string& contents,
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GpuInfoList* gpulist) {
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size_t line_loc = contents.find("\n");
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if (line_loc == std::string::npos) {
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line_loc = contents.size();
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}
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size_t p = 0;
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std::string key;
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std::string val;
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bool lookfor = false;
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// Linux - Only support one GPU for now.
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// On Linux, the only command that seems not to take
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// forever is lspci.
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// We just look for "VGA" in lspci, then
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// attempt to grab vendor and device information.
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// Second, we use glx to look for the version string,
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// in case there is a renderer such as Mesa
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// to look out for.
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while (line_loc != std::string::npos) {
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key = contents.substr(p, line_loc - p);
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if (!lookfor && (key.find("VGA") != std::string::npos)) {
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lookfor = true;
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gpulist->addGpu();
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gpulist->currGpu().os = "L";
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} else if (lookfor && (key.find("Vendor") != std::string::npos)) {
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gpulist->currGpu().make = parse_last_hexbrackets(key);
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} else if (lookfor && (key.find("Device") != std::string::npos)) {
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gpulist->currGpu().device_id = parse_last_hexbrackets(key);
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lookfor = false;
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} else if (key.find("OpenGL version string") != std::string::npos) {
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gpulist->currGpu().renderer = key;
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} else {
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}
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if (line_loc == contents.size()) {
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break;
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}
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p = line_loc + 1;
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line_loc = contents.find("\n", p);
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if (line_loc == std::string::npos) {
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line_loc = contents.size();
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}
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}
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}
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void getGpuInfoListNative(GpuInfoList* gpulist) {
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(void)gpulist;
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// Load it in a traditional way - by parsing output of external process.
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// TODO: Don't do GPU info detection on Linux for now---lspci can be
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// inaccurate as to what GPU the user is actually using.
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#ifdef ANDROID_DEBUG
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// Workaround for b/77586363, clang -O0 introduces some unexpected behavior
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// when it comes to the else. See the bug for details
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// load_gpu_info();
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#else
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// (void)load_gpu_info; // Make Werror happy
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#endif
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// std::string gpu_info = load_gpu_info();
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// parse_gpu_info_list_linux(gpu_info, gpulist);
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// Unfortunately, even to obtain a driver version on Linux one has to either
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// create a full rendering context (very slow, 150+ms) or hardcode specific
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// ways to get it for each existing GPU driver (just insane).
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//
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// That's why this function doesn't populate driver version and renderer.
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//
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// If you ever need start from something to get them from OpenGL, here's
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// a very simple example:
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// http://web.mit.edu/jhawk/mnt/spo/3d/src/Mesa-3.0/samples/oglinfo.c
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//
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}
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// Linux: do not blacklist Vulkan
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bool isVulkanSafeToUseNative() {
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return true;
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}
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