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 const char kANGLEImplementationDefaultName[]  = "default";
  18 const char kANGLEImplementationD3D9Name[]     = "d3d9";
  19 const char kANGLEImplementationD3D11Name[]    = "d3d11";
  20 const char kANGLEImplementationWARPName[]     = "warp";
  21 const char kANGLEImplementationOpenGLName[]   = "gl";
  22 const char kANGLEImplementationOpenGLESName[] = "gles";
  23
  24 }  // namespace gfx
  25
  26 namespace switches {
  27
  28 // Disables use of D3D11.
  29 const char kDisableD3D11[]                  = "disable-d3d11";
  30
  31 // Stop the GPU from synchronizing on the vsync before presenting.
  32 // We can select from the options below:
  33 //  beginframe : Next frame can start without any delay on cc::scheduler.
  34 //  gpu : Disable gpu vsync.
  35 //  default: Set both flags.
  36 const char kDisableGpuVsync[]               = "disable-gpu-vsync";
  37
  38 // Turns on GPU logging (debug build only).
  39 const char kEnableGPUServiceLogging[]       = "enable-gpu-service-logging";
  40
  41 // Turns on calling TRACE for every GL call.
  42 const char kEnableGPUServiceTracing[]       = "enable-gpu-service-tracing";
  43
  44 // Select which ANGLE backend to use. Options are:
  45 //  default: Attempts several ANGLE renderers until one successfully
  46 //           initializes, varying ES support by platform.
  47 //  d3d9: Legacy D3D9 renderer, ES2 only.
  48 //  d3d11: D3D11 renderer, ES2 and ES3.
  49 //  warp: D3D11 renderer using software rasterization, ES2 and ES3.
  50 //  gl: Desktop GL renderer, ES2 and ES3.
  51 //  gles: GLES renderer, ES2 and ES3.
  52 const char kUseANGLE[]                      = "use-angle";
  53
  54 // Select which implementation of GL the GPU process should use. Options are:
  55 //  desktop: whatever desktop OpenGL the user has installed (Linux and Mac
  56 //           default).
  57 //  egl: whatever EGL / GLES2 the user has installed (Windows default - actually
  58 //       ANGLE).
  59 //  osmesa: The OSMesa software renderer.
  60 const char kUseGL[]                         = "use-gl";
  61
  62 const char kSwiftShaderPath[]               = "swiftshader-path";
  63
  64 // Inform Chrome that a GPU context will not be lost in power saving mode,
  65 // screen saving mode, etc.  Note that this flag does not ensure that a GPU
  66 // context will never be lost in any situations, say, a GPU reset.
  67 const char kGpuNoContextLost[]              = "gpu-no-context-lost";
  68
  69 // Indicates whether the dual GPU switching is supported or not.
  70 const char kSupportsDualGpus[]              = "supports-dual-gpus";
  71
  72 // Flag used for Linux tests: for desktop GL bindings, try to load this GL
  73 // library first, but fall back to regular library if loading fails.
  74 const char kTestGLLib[]                     = "test-gl-lib";
  75
  76 // Use hardware gpu, if available, for tests.
  77 const char kUseGpuInTests[] = "use-gpu-in-tests";
  78
  79 // Enable OpenGL ES 3 APIs without proper service side validation.
  80 const char kEnableUnsafeES3APIs[] = "enable-unsafe-es3-apis";
  81
  82 // Disables GL drawing operations which produce pixel output. With this
  83 // the GL output will not be correct but tests will run faster.
  84 const char kDisableGLDrawingForTests[] = "disable-gl-drawing-for-tests";
  85
  86 // Forces the use of OSMesa instead of hardware gpu.
  87 const char kOverrideUseGLWithOSMesaForTests[] =
  88     "override-use-gl-with-osmesa-for-tests";
  89
  90 // Disables specified comma separated GL Extensions if found.
  91 const char kDisableGLExtensions[] = "disable-gl-extensions";
  92
  93 // This is the list of switches passed from this file that are passed from the
  94 // GpuProcessHost to the GPU Process. Add your switch to this list if you need
  95 // to read it in the GPU process, else don't add it.
  96 const char* kGLSwitchesCopiedFromGpuProcessHost[] = {
  97   kDisableGpuVsync,
  98   kDisableD3D11,
  99   kEnableGPUServiceLogging,
 100   kEnableGPUServiceTracing,
 101   kEnableUnsafeES3APIs,
 102   kGpuNoContextLost,
 103   kDisableGLDrawingForTests,
 104   kOverrideUseGLWithOSMesaForTests,
 105   kUseANGLE,
 106 };
 107 const int kGLSwitchesCopiedFromGpuProcessHostNumSwitches =
 108     arraysize(kGLSwitchesCopiedFromGpuProcessHost);
 109
 110 }  // namespace switches
 111