content/canvas/src/WebGLContextReporter.cpp

   1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #include "WebGLContext.h"
   7 #include "WebGLMemoryTracker.h"
   8
   9 using namespace mozilla;
  10
  11 NS_IMPL_ISUPPORTS1(WebGLMemoryPressureObserver, nsIObserver)
  12
  13 NS_IMETHODIMP
  14 WebGLMemoryTracker::CollectReports(nsIHandleReportCallback* aHandleReport,
  15                                    nsISupports* aData)
  16 {
  17 #define REPORT(_path, _kind, _units, _amount, _desc)                          \
  18     do {                                                                      \
  19       nsresult rv;                                                            \
  20       rv = aHandleReport->Callback(EmptyCString(), NS_LITERAL_CSTRING(_path), \
  21                                    _kind, _units, _amount,                    \
  22                                    NS_LITERAL_CSTRING(_desc), aData);         \
  23       NS_ENSURE_SUCCESS(rv, rv);                                              \
  24     } while (0)
  25
  26     REPORT("webgl-texture-memory",
  27            KIND_OTHER, UNITS_BYTES, GetTextureMemoryUsed(),
  28            "Memory used by WebGL textures.The OpenGL"
  29            " implementation is free to store these textures in either video"
  30            " memory or main memory. This measurement is only a lower bound,"
  31            " actual memory usage may be higher for example if the storage"
  32            " is strided.");
  33
  34     REPORT("webgl-texture-count",
  35            KIND_OTHER, UNITS_COUNT, GetTextureCount(),
  36            "Number of WebGL textures.");
  37
  38     REPORT("webgl-buffer-memory",
  39            KIND_OTHER, UNITS_BYTES, GetBufferMemoryUsed(),
  40            "Memory used by WebGL buffers. The OpenGL"
  41            " implementation is free to store these buffers in either video"
  42            " memory or main memory. This measurement is only a lower bound,"
  43            " actual memory usage may be higher for example if the storage"
  44            " is strided.");
  45
  46     REPORT("explicit/webgl/buffer-cache-memory",
  47            KIND_HEAP, UNITS_BYTES, GetBufferCacheMemoryUsed(),
  48            "Memory used by WebGL buffer caches. The WebGL"
  49            " implementation caches the contents of element array buffers"
  50            " only.This adds up with the webgl-buffer-memory value, but"
  51            " contrary to it, this one represents bytes on the heap,"
  52            " not managed by OpenGL.");
  53
  54     REPORT("webgl-buffer-count",
  55            KIND_OTHER, UNITS_COUNT, GetBufferCount(),
  56            "Number of WebGL buffers.");
  57
  58     REPORT("webgl-renderbuffer-memory",
  59            KIND_OTHER, UNITS_BYTES, GetRenderbufferMemoryUsed(),
  60            "Memory used by WebGL renderbuffers. The OpenGL"
  61            " implementation is free to store these renderbuffers in either"
  62            " video memory or main memory. This measurement is only a lower"
  63            " bound, actual memory usage may be higher for example if the"
  64            " storage is strided.");
  65
  66     REPORT("webgl-renderbuffer-count",
  67            KIND_OTHER, UNITS_COUNT, GetRenderbufferCount(),
  68            "Number of WebGL renderbuffers.");
  69
  70     REPORT("explicit/webgl/shader",
  71            KIND_HEAP, UNITS_BYTES, GetShaderSize(),
  72            "Combined size of WebGL shader ASCII sources and translation"
  73            " logs cached on the heap.");
  74
  75     REPORT("webgl-shader-count",
  76            KIND_OTHER, UNITS_COUNT, GetShaderCount(),
  77            "Number of WebGL shaders.");
  78
  79     REPORT("webgl-context-count",
  80            KIND_OTHER, UNITS_COUNT, GetContextCount(),
  81            "Number of WebGL contexts.");
  82
  83 #undef REPORT
  84
  85     return NS_OK;
  86 }
  87
  88 NS_IMPL_ISUPPORTS1(WebGLMemoryTracker, nsIMemoryReporter)
  89
  90 StaticRefPtr<WebGLMemoryTracker> WebGLMemoryTracker::sUniqueInstance;
  91
  92 WebGLMemoryTracker* WebGLMemoryTracker::UniqueInstance()
  93 {
  94     if (!sUniqueInstance) {
  95         sUniqueInstance = new WebGLMemoryTracker;
  96         sUniqueInstance->InitMemoryReporter();
  97     }
  98     return sUniqueInstance;
  99 }
 100
 101 WebGLMemoryTracker::WebGLMemoryTracker()
 102 {
 103 }
 104
 105 void
 106 WebGLMemoryTracker::InitMemoryReporter()
 107 {
 108     RegisterWeakMemoryReporter(this);
 109 }
 110
 111 WebGLMemoryTracker::~WebGLMemoryTracker()
 112 {
 113     UnregisterWeakMemoryReporter(this);
 114 }
 115
 116 MOZ_DEFINE_MALLOC_SIZE_OF(WebGLBufferMallocSizeOf)
 117
 118 int64_t
 119 WebGLMemoryTracker::GetBufferCacheMemoryUsed() {
 120     const ContextsArrayType & contexts = Contexts();
 121     int64_t result = 0;
 122     for(size_t i = 0; i < contexts.Length(); ++i) {
 123         for (const WebGLBuffer *buffer = contexts[i]->mBuffers.getFirst();
 124              buffer;
 125              buffer = buffer->getNext())
 126         {
 127             if (buffer->Target() == LOCAL_GL_ELEMENT_ARRAY_BUFFER)
 128                 result += buffer->SizeOfIncludingThis(WebGLBufferMallocSizeOf);
 129         }
 130     }
 131     return result;
 132 }
 133
 134 MOZ_DEFINE_MALLOC_SIZE_OF(WebGLShaderMallocSizeOf)
 135
 136 int64_t
 137 WebGLMemoryTracker::GetShaderSize() {
 138     const ContextsArrayType & contexts = Contexts();
 139     int64_t result = 0;
 140     for(size_t i = 0; i < contexts.Length(); ++i) {
 141         for (const WebGLShader *shader = contexts[i]->mShaders.getFirst();
 142              shader;
 143              shader = shader->getNext())
 144         {
 145             result += shader->SizeOfIncludingThis(WebGLShaderMallocSizeOf);
 146         }
 147     }
 148     return result;
 149 }