d78d52a86f
This reverts commit bfc9b94840.
Reason for revert: new dependency causing Android build error
Original change's description:
> Add Perfetto library (gn & bazel) and bare-bones SkPerfTrace class
>
> First incremental step to incorporating Perfetto tracing into Skia, more CLs to follow
>
> NOTE: The presubmit check is failing. This appears to be due to the known issue where the presubmit check bugs out if the DEPS file is edited, which it was on this CL (modified to include Perfetto).
>
> Bug: skia:13303
> Change-Id: I908be0392b520e8da14b34588b842bf6d955bd93
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/543081
> Reviewed-by: Greg Daniel <egdaniel@google.com>
> Commit-Queue: Nicolette Prevost <nicolettep@google.com>
Bug: skia:13303
Change-Id: Ia2b883bbab1f8fb4f3914b63104a39240cc60e86
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/544239
Reviewed-by: Tyler Denniston <tdenniston@google.com>
Auto-Submit: Tyler Denniston <tdenniston@google.com>
Reviewed-by: Nicolette Prevost <nicolettep@google.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Tyler Denniston <tdenniston@google.com>
89 lines
3.1 KiB
C++
89 lines
3.1 KiB
C++
/*
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* Copyright 2017 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "tools/trace/EventTracingPriv.h"
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#include "include/utils/SkEventTracer.h"
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#include "src/core/SkATrace.h"
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#include "src/core/SkTraceEvent.h"
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#include "tools/flags/CommandLineFlags.h"
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#include "tools/trace/ChromeTracingTracer.h"
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#include "tools/trace/SkDebugfTracer.h"
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static DEFINE_string(trace,
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"",
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"Log trace events in one of several modes:\n"
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" debugf : Show events using SkDebugf\n"
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" atrace : Send events to Android ATrace\n"
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" <filename> : Any other string is interpreted as a filename. Writes\n"
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" trace events to specified file as JSON, for viewing\n"
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" with chrome://tracing");
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static DEFINE_string(traceMatch,
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"",
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"Filter which categories are traced.\n"
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"Uses same format as --match\n");
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void initializeEventTracingForTools(const char* traceFlag) {
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if (!traceFlag) {
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if (FLAGS_trace.isEmpty()) {
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return;
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}
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traceFlag = FLAGS_trace[0];
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}
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SkEventTracer* eventTracer = nullptr;
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if (0 == strcmp(traceFlag, "atrace")) {
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eventTracer = new SkATrace();
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} else if (0 == strcmp(traceFlag, "debugf")) {
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eventTracer = new SkDebugfTracer();
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} else {
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eventTracer = new ChromeTracingTracer(traceFlag);
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}
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SkAssertResult(SkEventTracer::SetInstance(eventTracer));
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}
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uint8_t* SkEventTracingCategories::getCategoryGroupEnabled(const char* name) {
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static_assert(0 == offsetof(CategoryState, fEnabled), "CategoryState");
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// We ignore the "disabled-by-default-" prefix in our internal tools
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if (SkStrStartsWith(name, TRACE_CATEGORY_PREFIX)) {
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name += strlen(TRACE_CATEGORY_PREFIX);
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}
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// Chrome's implementation of this API does a two-phase lookup (once without a lock, then again
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// with a lock. But the tracing macros avoid calling these functions more than once per site,
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// so just do something simple (and easier to reason about):
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SkAutoMutexExclusive lock(fMutex);
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for (int i = 0; i < fNumCategories; ++i) {
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if (0 == strcmp(name, fCategories[i].fName)) {
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return reinterpret_cast<uint8_t*>(&fCategories[i]);
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}
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}
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if (fNumCategories >= kMaxCategories) {
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SkDEBUGFAIL("Exhausted event tracing categories. Increase kMaxCategories.");
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return reinterpret_cast<uint8_t*>(&fCategories[0]);
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}
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fCategories[fNumCategories].fEnabled =
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CommandLineFlags::ShouldSkip(FLAGS_traceMatch, name)
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? 0
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: SkEventTracer::kEnabledForRecording_CategoryGroupEnabledFlags;
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fCategories[fNumCategories].fName = name;
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return reinterpret_cast<uint8_t*>(&fCategories[fNumCategories++]);
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}
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const char* SkEventTracingCategories::getCategoryGroupName(const uint8_t* categoryEnabledFlag) {
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if (categoryEnabledFlag) {
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return reinterpret_cast<const CategoryState*>(categoryEnabledFlag)->fName;
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}
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return nullptr;
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}
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