1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/layers/client/SimpleTextureClientPool.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,140 @@
1.4 +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
1.5 +* This Source Code Form is subject to the terms of the Mozilla Public
1.6 +* License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 +* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "SimpleTextureClientPool.h"
1.10 +#include "CompositableClient.h"
1.11 +#include "mozilla/layers/ISurfaceAllocator.h"
1.12 +
1.13 +#include "gfxPrefs.h"
1.14 +
1.15 +#include "nsComponentManagerUtils.h"
1.16 +
1.17 +#if 0
1.18 +#define RECYCLE_LOG(...) printf_stderr(__VA_ARGS__)
1.19 +#else
1.20 +#define RECYCLE_LOG(...) do { } while (0)
1.21 +#endif
1.22 +
1.23 +namespace mozilla {
1.24 +namespace layers {
1.25 +
1.26 +using gfx::SurfaceFormat;
1.27 +
1.28 +/* static */ void
1.29 +SimpleTextureClientPool::ShrinkCallback(nsITimer *aTimer, void *aClosure)
1.30 +{
1.31 + static_cast<SimpleTextureClientPool*>(aClosure)->ShrinkToMinimumSize();
1.32 +}
1.33 +
1.34 +/* static */ void
1.35 +SimpleTextureClientPool::RecycleCallback(TextureClient* aClient, void* aClosure)
1.36 +{
1.37 + SimpleTextureClientPool* pool =
1.38 + static_cast<SimpleTextureClientPool*>(aClosure);
1.39 +
1.40 + aClient->ClearRecycleCallback();
1.41 + pool->ReturnTextureClient(aClient);
1.42 +}
1.43 +
1.44 +/* static */ void
1.45 +SimpleTextureClientPool::WaitForCompositorRecycleCallback(TextureClient* aClient, void* aClosure)
1.46 +{
1.47 + // This will grab a reference that will be released once the compositor
1.48 + // acknowledges the remote recycle. Once it is received the object
1.49 + // will be fully recycled.
1.50 + aClient->WaitForCompositorRecycle();
1.51 + aClient->SetRecycleCallback(SimpleTextureClientPool::RecycleCallback, aClosure);
1.52 +}
1.53 +
1.54 +SimpleTextureClientPool::SimpleTextureClientPool(gfx::SurfaceFormat aFormat, gfx::IntSize aSize,
1.55 + ISurfaceAllocator *aAllocator)
1.56 + : mFormat(aFormat)
1.57 + , mSize(aSize)
1.58 + , mSurfaceAllocator(aAllocator)
1.59 +{
1.60 + mTimer = do_CreateInstance("@mozilla.org/timer;1");
1.61 +}
1.62 +
1.63 +TemporaryRef<TextureClient>
1.64 +SimpleTextureClientPool::GetTextureClient(bool aAutoRecycle)
1.65 +{
1.66 + // Try to fetch a client from the pool
1.67 + RefPtr<TextureClient> textureClient;
1.68 + if (mAvailableTextureClients.size()) {
1.69 + textureClient = mAvailableTextureClients.top();
1.70 + textureClient->WaitReleaseFence();
1.71 + mAvailableTextureClients.pop();
1.72 + RECYCLE_LOG("%s Skip allocate (%i left), returning %p\n", (mFormat == SurfaceFormat::B8G8R8A8?"poolA":"poolX"), mAvailableTextureClients.size(), textureClient.get());
1.73 +
1.74 + } else {
1.75 + // No unused clients in the pool, create one
1.76 + if (gfxPrefs::ForceShmemTiles()) {
1.77 + textureClient = TextureClient::CreateBufferTextureClient(mSurfaceAllocator,
1.78 + mFormat, TEXTURE_IMMEDIATE_UPLOAD | TEXTURE_RECYCLE, gfx::BackendType::NONE);
1.79 + } else {
1.80 + textureClient = TextureClient::CreateTextureClientForDrawing(mSurfaceAllocator,
1.81 + mFormat, TEXTURE_FLAGS_DEFAULT | TEXTURE_RECYCLE, gfx::BackendType::NONE, mSize);
1.82 + }
1.83 + if (!textureClient->AllocateForSurface(mSize, ALLOC_DEFAULT)) {
1.84 + NS_WARNING("TextureClient::AllocateForSurface failed!");
1.85 + }
1.86 + RECYCLE_LOG("%s Must allocate (0 left), returning %p\n", (mFormat == SurfaceFormat::B8G8R8A8?"poolA":"poolX"), textureClient.get());
1.87 + }
1.88 +
1.89 + if (aAutoRecycle) {
1.90 + mOutstandingTextureClients.push_back(textureClient);
1.91 + textureClient->SetRecycleCallback(SimpleTextureClientPool::WaitForCompositorRecycleCallback, this);
1.92 + }
1.93 +
1.94 + return textureClient;
1.95 +}
1.96 +
1.97 +void
1.98 +SimpleTextureClientPool::ReturnTextureClient(TextureClient *aClient)
1.99 +{
1.100 + if (!aClient) {
1.101 + return;
1.102 + }
1.103 +
1.104 + // If we haven't hit our max cached client limit, add this one
1.105 + if (mAvailableTextureClients.size() < sMaxTextureClients) {
1.106 + mAvailableTextureClients.push(aClient);
1.107 + RECYCLE_LOG("%s recycled %p (have %d)\n", (mFormat == SurfaceFormat::B8G8R8A8?"poolA":"poolX"), aClient, mAvailableTextureClients.size());
1.108 + } else {
1.109 + RECYCLE_LOG("%s did not recycle %p (have %d)\n", (mFormat == SurfaceFormat::B8G8R8A8?"poolA":"poolX"), aClient, mAvailableTextureClients.size());
1.110 + }
1.111 +
1.112 + // Kick off the pool shrinking timer if there are still more unused texture
1.113 + // clients than our desired minimum cache size.
1.114 + if (mAvailableTextureClients.size() > sMinCacheSize) {
1.115 + mTimer->InitWithFuncCallback(SimpleTextureClientPool::ShrinkCallback, this, sShrinkTimeout,
1.116 + nsITimer::TYPE_ONE_SHOT);
1.117 + }
1.118 +
1.119 + mOutstandingTextureClients.remove(aClient);
1.120 +}
1.121 +
1.122 +void
1.123 +SimpleTextureClientPool::ShrinkToMinimumSize()
1.124 +{
1.125 + RECYCLE_LOG("%s ShrinkToMinimumSize, removing %d clients", (mFormat == SurfaceFormat::B8G8R8A8?"poolA":"poolX"), mAvailableTextureClients.size() > sMinCacheSize ? mAvailableTextureClients.size() - sMinCacheSize : 0);
1.126 +
1.127 + mTimer->Cancel();
1.128 +
1.129 + while (mAvailableTextureClients.size() > sMinCacheSize) {
1.130 + mAvailableTextureClients.pop();
1.131 + }
1.132 +}
1.133 +
1.134 +void
1.135 +SimpleTextureClientPool::Clear()
1.136 +{
1.137 + while (!mAvailableTextureClients.empty()) {
1.138 + mAvailableTextureClients.pop();
1.139 + }
1.140 +}
1.141 +
1.142 +}
1.143 +}
