content/browser/gpu/compositor_util.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_BROWSER_GPU_COMPOSITOR_UTIL_H_
   6 #define CONTENT_BROWSER_GPU_COMPOSITOR_UTIL_H_
   7
   8 #include "base/values.h"
   9 #include "content/common/content_export.h"
  10
  11 namespace content {
  12
  13 // Note: When adding a function here, please make sure the logic is not
  14 // duplicated in the renderer.
  15
  16 // Returns true if the virtual viewport model of pinch-to-zoom is on (via
  17 // flags, or platform default).
  18 CONTENT_EXPORT bool IsPinchVirtualViewportEnabled();
  19
  20 // Returns true if property tree verification is enabled (via flags or platform
  21 // default).
  22 CONTENT_EXPORT bool IsPropertyTreeVerificationEnabled();
  23
  24 // Returns true if delegated-renderer is on (via flags, or platform default).
  25 CONTENT_EXPORT bool IsDelegatedRendererEnabled();
  26
  27 // Returns true if impl-side painting is on (via flags, or platform default)
  28 // for the renderer.
  29 CONTENT_EXPORT bool IsImplSidePaintingEnabled();
  30
  31 // Returns true if one-copy uploads is on (via flags, or platform default).
  32 // Only one of one-copy and zero-copy can be enabled at a time.
  33 CONTENT_EXPORT bool IsOneCopyUploadEnabled();
  34
  35 // Returns true if zero-copy uploads is on (via flags, or platform default).
  36 // Only one of one-copy and zero-copy can be enabled at a time.
  37 CONTENT_EXPORT bool IsZeroCopyUploadEnabled();
  38
  39 // Returns true if gpu rasterization is on (via flags) for the renderer.
  40 CONTENT_EXPORT bool IsGpuRasterizationEnabled();
  41
  42 // Returns the number of multisample antialiasing samples (via flags) for
  43 // GPU rasterization.
  44 CONTENT_EXPORT int GpuRasterizationMSAASampleCount();
  45
  46 // Returns true if force-gpu-rasterization is on (via flags) for the renderer.
  47 CONTENT_EXPORT bool IsForceGpuRasterizationEnabled();
  48
  49 // Returns the number of raster threads to use for compositing.
  50 CONTENT_EXPORT int NumberOfRendererRasterThreads();
  51
  52 // Returns the number of raster threads to use for compositing that are forced
  53 // by the command line.
  54 CONTENT_EXPORT int ForceNumberOfRendererRasterThreads();
  55
  56 // Returns true if using cc Surfaces is allowed.
  57 CONTENT_EXPORT bool UseSurfacesEnabled();
  58
  59 CONTENT_EXPORT base::DictionaryValue* GetFeatureStatus();
  60 CONTENT_EXPORT base::Value* GetProblems();
  61 CONTENT_EXPORT std::vector<std::string> GetDriverBugWorkarounds();
  62
  63 }  // namespace content
  64
  65 #endif  // CONTENT_BROWSER_GPU_COMPOSITOR_UTIL_H_