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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "WebGLMemoryTracker.h"
#include "HostWebGLContext.h"
#include "WebGLBuffer.h"
#include "WebGLRenderbuffer.h"
#include "WebGLShader.h"
#include "WebGLTexture.h"
namespace mozilla {
namespace webgl {
MOZ_DEFINE_MALLOC_SIZE_OF(MallocSizeOf)
} // namespace webgl
void WebGLMemoryTracker::EnsureRegistered() {
static bool sIsRegistered = []() {
RegisterStrongMemoryReporter(new WebGLMemoryTracker);
return true;
}();
(void)sIsRegistered;
}
NS_IMETHODIMP
WebGLMemoryTracker::CollectReports(nsIHandleReportCallback* aHandleReport,
nsISupports* aData, bool) {
const auto locked = HostWebGLContext::OutstandingContexts();
const auto& contexts = locked->contexts;
const auto contextCount = contexts.size();
size_t bufferCount = 0;
int64_t bufferGpuSize = 0;
int64_t bufferCacheSize = 0;
size_t rbCount = 0;
int64_t rbGpuSize = 0;
size_t shaderCount = 0;
int64_t shaderCpuSize = 0;
size_t texCount = 0;
size_t texHeapOverhead = 0;
int64_t texGpuSize = 0;
for (const auto& context : contexts) {
bufferCount += context->mBufferMap.size();
for (const auto& pair : context->mBufferMap) {
const auto& buffer = *pair.second;
bufferGpuSize += buffer.mByteLength;
if (buffer.mIndexCache) {
bufferCacheSize += buffer.mByteLength;
}
bufferCacheSize += buffer.mIndexRanges.size() *
sizeof(decltype(buffer.mIndexRanges)::value_type);
}
// -
rbCount += context->mRenderbufferMap.size();
for (const auto& pair : context->mRenderbufferMap) {
const auto& rb = pair.second;
rbGpuSize += rb->MemoryUsage();
}
// -
shaderCount += context->mShaderMap.size();
for (const auto& pair : context->mShaderMap) {
const auto& shader = pair.second;
shaderCpuSize += shader->SizeOfIncludingThis(webgl::MallocSizeOf);
}
// -
texCount += context->mTextureMap.size();
for (const auto& pair : context->mTextureMap) {
const auto& texture = pair.second;
texGpuSize += texture->MemoryUsage();
texHeapOverhead += texture->SizeOfIncludingThis(webgl::MallocSizeOf);
}
}
// -
MOZ_COLLECT_REPORT(
"webgl-texture-memory", KIND_OTHER, UNITS_BYTES, texGpuSize,
"Memory used by WebGL textures. The OpenGL implementation is free to "
"store these textures in either video memory or main memory. This "
"measurement is only a lower bound, actual memory usage may be higher "
"for example if the storage is strided.");
MOZ_COLLECT_REPORT("webgl-texture-count", KIND_OTHER, UNITS_COUNT,
static_cast<int64_t>(texCount),
"Number of WebGL textures.");
MOZ_COLLECT_REPORT(
"webgl-buffer-memory", KIND_OTHER, UNITS_BYTES, bufferGpuSize,
"Memory used by WebGL buffers. The OpenGL implementation is free to "
"store these buffers in either video memory or main memory. This "
"measurement is only a lower bound, actual memory usage may be higher "
"for example if the storage is strided.");
MOZ_COLLECT_REPORT(
"explicit/webgl/buffer-cache-memory", KIND_HEAP, UNITS_BYTES,
bufferCacheSize,
"Memory used by WebGL buffer caches. The WebGL implementation caches "
"the contents of element array buffers only. This adds up with the "
"'webgl-buffer-memory' value, but contrary to it, this one represents "
"bytes on the heap, not managed by OpenGL.");
MOZ_COLLECT_REPORT("webgl-buffer-count", KIND_OTHER, UNITS_COUNT,
static_cast<int64_t>(bufferCount),
"Number of WebGL buffers.");
MOZ_COLLECT_REPORT(
"webgl-renderbuffer-memory", KIND_OTHER, UNITS_BYTES, rbGpuSize,
"Memory used by WebGL renderbuffers. The OpenGL implementation is free "
"to store these renderbuffers in either video memory or main memory. "
"This measurement is only a lower bound, actual memory usage may be "
"higher, for example if the storage is strided.");
MOZ_COLLECT_REPORT("webgl-renderbuffer-count", KIND_OTHER, UNITS_COUNT,
static_cast<int64_t>(rbCount),
"Number of WebGL renderbuffers.");
MOZ_COLLECT_REPORT(
"explicit/webgl/shaders", KIND_HEAP, UNITS_BYTES, shaderCpuSize,
"Combined size of WebGL shader ASCII sources and translation logs "
"cached on the heap.");
MOZ_COLLECT_REPORT("explicit/webgl/textures", KIND_HEAP, UNITS_BYTES,
texHeapOverhead,
"WebGLTexture implementation detail overhead.");
MOZ_COLLECT_REPORT("webgl-shader-count", KIND_OTHER, UNITS_COUNT,
static_cast<int64_t>(shaderCount),
"Number of WebGL shaders.");
MOZ_COLLECT_REPORT("webgl-context-count", KIND_OTHER, UNITS_COUNT,
static_cast<int64_t>(contextCount),
"Number of WebGL contexts.");
return NS_OK;
}
NS_IMPL_ISUPPORTS(WebGLMemoryTracker, nsIMemoryReporter)
} // namespace mozilla
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