kc3-lang/angle/src/libANGLE/renderer/ShaderImpl.cpp

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• Hash : 6f80f0f0
  Author :
  Date : 2022-08-06T02:29:19
  

  Translator: Clean up the compile flag passing interface
  
  Historically, compile flags were sent to the translator as a bitmask.
  Recently, we were getting close to running out of bits.  Additionally,
  direct-to-metal work had started to introduce constants to be passed to
  the translator, which were misplaced in ShBuiltInResources and Caps.
  Recent work on Pixel Local Storage adds even more constants, aggravating
  the situation.
  
  In this change, the interface to passing compile flags is reworked.  A
  struct is passed (instead of a bitmask) that has one bit for each flag.
  This can be indefinitely extended.  Additionally, the constants needed
  by metal and PLS are also placed in this struct.  In turn, the backends
  can set these options directly, and don't have to hack them into Caps to
  further get hacked into ShBuiltInResources.
  
  Bug: angleproject:7559
  Change-Id: If93f1e1b8818ad3a0ac708ab04ab93b4b397d114
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3812562
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Amirali Abdolrashidi <abdolrashidi@google.com>
  Commit-Queue: Amirali Abdolrashidi <abdolrashidi@google.com>
  Auto-Submit: Shahbaz Youssefi <syoussefi@chromium.org>
  

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• src/libANGLE/renderer/ShaderImpl.cpp

• //
  // Copyright 2019 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  // ShaderImpl.cpp: Implementation methods of ShaderImpl
  
  #include "libANGLE/renderer/ShaderImpl.h"
  
  #include "libANGLE/Context.h"
  #include "libANGLE/trace.h"
  
  namespace rx
  {
  
  WaitableCompileEvent::WaitableCompileEvent(std::shared_ptr<angle::WaitableEvent> waitableEvent)
      : mWaitableEvent(waitableEvent)
  {}
  
  WaitableCompileEvent::~WaitableCompileEvent()
  {
      mWaitableEvent.reset();
  }
  
  void WaitableCompileEvent::wait()
  {
      mWaitableEvent->wait();
  }
  
  bool WaitableCompileEvent::isReady()
  {
      return mWaitableEvent->isReady();
  }
  
  const std::string &WaitableCompileEvent::getInfoLog()
  {
      return mInfoLog;
  }
  
  class TranslateTask : public angle::Closure
  {
    public:
      TranslateTask(ShHandle handle, const ShCompileOptions &options, const std::string &source)
          : mHandle(handle), mOptions(options), mSource(source), mResult(false)
      {}
  
      void operator()() override
      {
          ANGLE_TRACE_EVENT1("gpu.angle", "TranslateTask::run", "source", mSource);
          const char *source = mSource.c_str();
          mResult            = sh::Compile(mHandle, &source, 1, mOptions);
      }
  
      bool getResult() { return mResult; }
  
      ShHandle getHandle() { return mHandle; }
  
    private:
      ShHandle mHandle;
      ShCompileOptions mOptions;
      std::string mSource;
      bool mResult;
  };
  
  class WaitableCompileEventImpl final : public WaitableCompileEvent
  {
    public:
      WaitableCompileEventImpl(std::shared_ptr<angle::WaitableEvent> waitableEvent,
                               std::shared_ptr<TranslateTask> translateTask)
          : WaitableCompileEvent(waitableEvent), mTranslateTask(translateTask)
      {}
  
      bool getResult() override { return mTranslateTask->getResult(); }
  
      bool postTranslate(std::string *infoLog) override { return true; }
  
    private:
      std::shared_ptr<TranslateTask> mTranslateTask;
  };
  
  std::shared_ptr<WaitableCompileEvent> ShaderImpl::compileImpl(
      const gl::Context *context,
      gl::ShCompilerInstance *compilerInstance,
      const std::string &source,
      ShCompileOptions *compileOptions)
  {
  #if defined(ANGLE_ENABLE_ASSERTS)
      compileOptions->validateAST = true;
  #endif
  
      auto workerThreadPool = context->getShaderCompileThreadPool();
      auto translateTask =
          std::make_shared<TranslateTask>(compilerInstance->getHandle(), *compileOptions, source);
  
      return std::make_shared<WaitableCompileEventImpl>(
          angle::WorkerThreadPool::PostWorkerTask(workerThreadPool, translateTask), translateTask);
  }
  
  angle::Result ShaderImpl::onLabelUpdate(const gl::Context *context)
  {
      return angle::Result::Continue;
  }
  
  }  // namespace rx
  

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