ui/gl/gl_switches.cc

   1 // Copyright (c) 2012 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 #include "ui/gl/gl_switches.h"
   6 #include "base/basictypes.h"
   7
   8 namespace gfx {
   9
  10 const char kGLImplementationDesktopName[]     = "desktop";
  11 const char kGLImplementationOSMesaName[]      = "osmesa";
  12 const char kGLImplementationAppleName[]       = "apple";
  13 const char kGLImplementationEGLName[]         = "egl";
  14 const char kGLImplementationSwiftShaderName[] = "swiftshader";
  15 const char kGLImplementationMockName[]        = "mock";
  16
  17 }  // namespace gfx
  18
  19 namespace switches {
  20
  21 // Enables use of D3D11 when available.
  22 const char kEnableD3D11[]                   = "enable-d3d11";
  23
  24 // Disables use of D3D11.
  25 const char kDisableD3D11[]                  = "disable-d3d11";
  26
  27 // Stop the GPU from synchronizing on the vsync before presenting.
  28 const char kDisableGpuVsync[]               = "disable-gpu-vsync";
  29
  30 // Turns on GPU logging (debug build only).
  31 const char kEnableGPUServiceLogging[]       = "enable-gpu-service-logging";
  32 const char kEnableGPUClientLogging[]        = "enable-gpu-client-logging";
  33
  34 // Turns on calling TRACE for every GL call.
  35 const char kEnableGPUServiceTracing[]       = "enable-gpu-service-tracing";
  36
  37 // Select which implementation of GL the GPU process should use. Options are:
  38 //  desktop: whatever desktop OpenGL the user has installed (Linux and Mac
  39 //           default).
  40 //  egl: whatever EGL / GLES2 the user has installed (Windows default - actually
  41 //       ANGLE).
  42 //  osmesa: The OSMesa software renderer.
  43 const char kUseGL[]                         = "use-gl";
  44
  45 const char kSwiftShaderPath[]               = "swiftshader-path";
  46
  47 // Inform Chrome that a GPU context will not be lost in power saving mode,
  48 // screen saving mode, etc.  Note that this flag does not ensure that a GPU
  49 // context will never be lost in any situations, say, a GPU reset.
  50 const char kGpuNoContextLost[]              = "gpu-no-context-lost";
  51
  52 // Add a delay in milliseconds to the gpu swap buffer completion signal.
  53 // Simulates a slow GPU.
  54 const char kGpuSwapDelay[]                  = "gpu-swap-delay";
  55
  56 // Indicates whether the dual GPU switching is supported or not.
  57 const char kSupportsDualGpus[]              = "supports-dual-gpus";
  58
  59 // Overwrite the default GPU automatic switching behavior to force on
  60 // integrated GPU or discrete GPU.
  61 const char kGpuSwitching[]                  = "gpu-switching";
  62
  63 const char kGpuSwitchingOptionNameForceIntegrated[] = "force_integrated";
  64 const char kGpuSwitchingOptionNameForceDiscrete[]   = "force_discrete";
  65
  66 // Flag used for Linux tests: for desktop GL bindings, try to load this GL
  67 // library first, but fall back to regular library if loading fails.
  68 const char kTestGLLib[]                     = "test-gl-lib";
  69
  70 // Disables GL drawing operations which produce pixel output. With this
  71 // the GL output will not be correct but tests will run faster.
  72 const char kDisableGLDrawingForTests[] = "disable-gl-drawing-for-tests";
  73
  74 // This is the list of switches passed from this file that are passed from the
  75 // GpuProcessHost to the GPU Process. Add your switch to this list if you need
  76 // to read it in the GPU process, else don't add it.
  77 const char* kGLSwitchesCopiedFromGpuProcessHost[] = {
  78   kDisableGpuVsync,
  79   kEnableD3D11,
  80   kDisableD3D11,
  81   kEnableGPUServiceLogging,
  82   kEnableGPUServiceTracing,
  83   kGpuNoContextLost,
  84 };
  85 const int kGLSwitchesCopiedFromGpuProcessHostNumSwitches =
  86     arraysize(kGLSwitchesCopiedFromGpuProcessHost);
  87
  88 }  // namespace switches
  89