// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "gpu/config/gpu_finch_features.h"

#if defined(OS_ANDROID)
#include "base/android/build_info.h"
#include "base/metrics/field_trial_params.h"
#include "base/strings/string_split.h"
#include "ui/gl/android/android_surface_control_compat.h"
#endif

namespace features {
namespace {

#if defined(OS_ANDROID)
bool FieldIsInBlacklist(const char* current_value, std::string blacklist_str) {
  std::vector<std::string> blacklist = base::SplitString(
      blacklist_str, ",", base::KEEP_WHITESPACE, base::SPLIT_WANT_NONEMPTY);
  for (const std::string& value : blacklist) {
    if (value == current_value)
      return true;
  }

  return false;
}
#endif

}  // namespace

#if defined(OS_ANDROID)
// Use android AImageReader when playing videos with MediaPlayer.
const base::Feature kAImageReaderMediaPlayer{"AImageReaderMediaPlayer",
                                             base::FEATURE_DISABLED_BY_DEFAULT};

// Use android SurfaceControl API for managing display compositor's buffer queue
// and using overlays on Android.
// Note that the feature only works with VizDisplayCompositor enabled.
const base::Feature kAndroidSurfaceControl{"AndroidSurfaceControl",
                                           base::FEATURE_DISABLED_BY_DEFAULT};
#endif

// Enable GPU Rasterization by default. This can still be overridden by
// --force-gpu-rasterization or --disable-gpu-rasterization.
#if defined(OS_MACOSX) || defined(OS_WIN) || defined(OS_CHROMEOS) || \
    defined(OS_ANDROID)
// DefaultEnableGpuRasterization has launched on Mac, Windows, ChromeOS, and
// Android.
const base::Feature kDefaultEnableGpuRasterization{
    "DefaultEnableGpuRasterization", base::FEATURE_ENABLED_BY_DEFAULT};
#else
const base::Feature kDefaultEnableGpuRasterization{
    "DefaultEnableGpuRasterization", base::FEATURE_DISABLED_BY_DEFAULT};
#endif

// Enable out of process rasterization by default.  This can still be overridden
// by --enable-oop-rasterization or --disable-oop-rasterization.
const base::Feature kDefaultEnableOopRasterization{
    "DefaultEnableOopRasterization", base::FEATURE_DISABLED_BY_DEFAULT};

// Use the passthrough command decoder by default.  This can be overridden with
// the --use-cmd-decoder=passthrough or --use-cmd-decoder=validating flags.
const base::Feature kDefaultPassthroughCommandDecoder{
    "DefaultPassthroughCommandDecoder", base::FEATURE_DISABLED_BY_DEFAULT};


// Overrides preferred overlay format to NV12 instead of YUY2.
const base::Feature kDirectCompositionPreferNV12Overlays{
    "DirectCompositionPreferNV12Overlays", base::FEATURE_ENABLED_BY_DEFAULT};

// Allow putting a video swapchain underneath the main swapchain, so overlays
// can be used even if there are controls on top of the video. It can be
// enabled only when overlay is supported.
const base::Feature kDirectCompositionUnderlays{
    "DirectCompositionUnderlays", base::FEATURE_ENABLED_BY_DEFAULT};

// Causes us to use the SharedImageManager, removing support for the old
// mailbox system. Any consumers of the GPU process using the old mailbox
// system will experience undefined results.
const base::Feature kSharedImageManager{"SharedImageManager",
                                        base::FEATURE_DISABLED_BY_DEFAULT};

// For Windows only. Use overlay swapchain to present software protected videos
// for all GPUs
const base::Feature kUseDCOverlaysForSoftwareProtectedVideo{
    "UseDCOverlaysForSoftwareProtectedVideo",
    base::FEATURE_DISABLED_BY_DEFAULT};

// Use decode swap chain created from compatible video decoder buffers.
const base::Feature kDirectCompositionUseNV12DecodeSwapChain{
    "DirectCompositionUseNV12DecodeSwapChain",
    base::FEATURE_DISABLED_BY_DEFAULT};

// Controls the decode acceleration of JPEG images (as opposed to camera
// captures) in Chrome OS using the VA-API.
// TODO(andrescj): remove or enable by default in Chrome OS once
// https://crbug.com/868400 is resolved.
const base::Feature kVaapiJpegImageDecodeAcceleration{
    "VaapiJpegImageDecodeAcceleration", base::FEATURE_DISABLED_BY_DEFAULT};

#if defined(OS_ANDROID)
bool IsAndroidSurfaceControlEnabled() {
  if (!gl::SurfaceControl::IsSupported())
    return false;

  if (!base::FeatureList::IsEnabled(kAndroidSurfaceControl))
    return false;

  if (FieldIsInBlacklist(base::android::BuildInfo::GetInstance()->model(),
                         base::GetFieldTrialParamValueByFeature(
                             kAndroidSurfaceControl, "blacklisted_models"))) {
    return false;
  }

  if (FieldIsInBlacklist(
          base::android::BuildInfo::GetInstance()->android_build_id(),
          base::GetFieldTrialParamValueByFeature(kAndroidSurfaceControl,
                                                 "blacklisted_build_ids"))) {
    return false;
  }

  return true;
}
#endif

}  // namespace features