blob: a9e8e8552b4d96e462a7fda7b566bb29a43c1d77 [file] [log] [blame]
// Copyright 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "cc/resources/resource_provider.h"
#include <stddef.h>
#include <stdint.h>
#include <algorithm>
#include <limits>
#include <unordered_map>
#include "base/atomic_sequence_num.h"
#include "base/macros.h"
#include "base/metrics/histogram.h"
#include "base/numerics/safe_math.h"
#include "base/stl_util.h"
#include "base/strings/string_split.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "base/threading/thread_task_runner_handle.h"
#include "base/trace_event/memory_dump_manager.h"
#include "base/trace_event/trace_event.h"
#include "cc/resources/platform_color.h"
#include "cc/resources/resource_util.h"
#include "cc/resources/returned_resource.h"
#include "cc/resources/shared_bitmap_manager.h"
#include "cc/resources/transferable_resource.h"
#include "gpu/GLES2/gl2extchromium.h"
#include "gpu/command_buffer/client/context_support.h"
#include "gpu/command_buffer/client/gles2_interface.h"
#include "gpu/command_buffer/client/gpu_memory_buffer_manager.h"
#include "skia/ext/texture_handle.h"
#include "third_party/khronos/GLES2/gl2.h"
#include "third_party/khronos/GLES2/gl2ext.h"
#include "third_party/skia/include/core/SkCanvas.h"
#include "third_party/skia/include/core/SkSurface.h"
#include "third_party/skia/include/gpu/GrContext.h"
#include "third_party/skia/include/gpu/GrTextureProvider.h"
#include "third_party/skia/include/gpu/gl/GrGLTypes.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/vector2d.h"
#include "ui/gl/trace_util.h"
using gpu::gles2::GLES2Interface;
namespace cc {
class IdAllocator {
public:
virtual ~IdAllocator() {}
virtual GLuint NextId() = 0;
protected:
IdAllocator(GLES2Interface* gl, size_t id_allocation_chunk_size)
: gl_(gl),
id_allocation_chunk_size_(id_allocation_chunk_size),
ids_(new GLuint[id_allocation_chunk_size]),
next_id_index_(id_allocation_chunk_size) {
DCHECK(id_allocation_chunk_size_);
DCHECK_LE(id_allocation_chunk_size_,
static_cast<size_t>(std::numeric_limits<int>::max()));
}
GLES2Interface* gl_;
const size_t id_allocation_chunk_size_;
std::unique_ptr<GLuint[]> ids_;
size_t next_id_index_;
};
namespace {
bool IsGpuResourceType(ResourceProvider::ResourceType type) {
return type != ResourceProvider::RESOURCE_TYPE_BITMAP;
}
GLenum TextureToStorageFormat(ResourceFormat format) {
GLenum storage_format = GL_RGBA8_OES;
switch (format) {
case RGBA_8888:
break;
case BGRA_8888:
storage_format = GL_BGRA8_EXT;
break;
case RGBA_4444:
case ALPHA_8:
case LUMINANCE_8:
case RGB_565:
case ETC1:
case RED_8:
case LUMINANCE_F16:
NOTREACHED();
break;
}
return storage_format;
}
bool IsFormatSupportedForStorage(ResourceFormat format, bool use_bgra) {
switch (format) {
case RGBA_8888:
return true;
case BGRA_8888:
return use_bgra;
case RGBA_4444:
case ALPHA_8:
case LUMINANCE_8:
case RGB_565:
case ETC1:
case RED_8:
case LUMINANCE_F16:
return false;
}
return false;
}
GrPixelConfig ToGrPixelConfig(ResourceFormat format) {
switch (format) {
case RGBA_8888:
return kRGBA_8888_GrPixelConfig;
case BGRA_8888:
return kBGRA_8888_GrPixelConfig;
case RGBA_4444:
return kRGBA_4444_GrPixelConfig;
default:
break;
}
DCHECK(false) << "Unsupported resource format.";
return kSkia8888_GrPixelConfig;
}
class ScopedSetActiveTexture {
public:
ScopedSetActiveTexture(GLES2Interface* gl, GLenum unit)
: gl_(gl), unit_(unit) {
DCHECK_EQ(GL_TEXTURE0, ResourceProvider::GetActiveTextureUnit(gl_));
if (unit_ != GL_TEXTURE0)
gl_->ActiveTexture(unit_);
}
~ScopedSetActiveTexture() {
// Active unit being GL_TEXTURE0 is effectively the ground state.
if (unit_ != GL_TEXTURE0)
gl_->ActiveTexture(GL_TEXTURE0);
}
private:
GLES2Interface* gl_;
GLenum unit_;
};
class TextureIdAllocator : public IdAllocator {
public:
TextureIdAllocator(GLES2Interface* gl,
size_t texture_id_allocation_chunk_size)
: IdAllocator(gl, texture_id_allocation_chunk_size) {}
~TextureIdAllocator() override {
gl_->DeleteTextures(
static_cast<int>(id_allocation_chunk_size_ - next_id_index_),
ids_.get() + next_id_index_);
}
// Overridden from IdAllocator:
GLuint NextId() override {
if (next_id_index_ == id_allocation_chunk_size_) {
gl_->GenTextures(static_cast<int>(id_allocation_chunk_size_), ids_.get());
next_id_index_ = 0;
}
return ids_[next_id_index_++];
}
private:
DISALLOW_COPY_AND_ASSIGN(TextureIdAllocator);
};
class BufferIdAllocator : public IdAllocator {
public:
BufferIdAllocator(GLES2Interface* gl, size_t buffer_id_allocation_chunk_size)
: IdAllocator(gl, buffer_id_allocation_chunk_size) {}
~BufferIdAllocator() override {
gl_->DeleteBuffers(
static_cast<int>(id_allocation_chunk_size_ - next_id_index_),
ids_.get() + next_id_index_);
}
// Overridden from IdAllocator:
GLuint NextId() override {
if (next_id_index_ == id_allocation_chunk_size_) {
gl_->GenBuffers(static_cast<int>(id_allocation_chunk_size_), ids_.get());
next_id_index_ = 0;
}
return ids_[next_id_index_++];
}
private:
DISALLOW_COPY_AND_ASSIGN(BufferIdAllocator);
};
// Generates process-unique IDs to use for tracing a ResourceProvider's
// resources.
base::StaticAtomicSequenceNumber g_next_resource_provider_tracing_id;
} // namespace
ResourceProvider::Resource::~Resource() {}
ResourceProvider::Resource::Resource(GLuint texture_id,
const gfx::Size& size,
Origin origin,
GLenum target,
GLenum filter,
TextureHint hint,
ResourceType type,
ResourceFormat format)
: child_id(0),
gl_id(texture_id),
gl_pixel_buffer_id(0),
gl_upload_query_id(0),
gl_read_lock_query_id(0),
pixels(nullptr),
lock_for_read_count(0),
imported_count(0),
exported_count(0),
dirty_image(false),
locked_for_write(false),
lost(false),
marked_for_deletion(false),
allocated(false),
read_lock_fences_enabled(false),
has_shared_bitmap_id(false),
is_overlay_candidate(false),
read_lock_fence(nullptr),
size(size),
origin(origin),
target(target),
original_filter(filter),
filter(filter),
image_id(0),
bound_image_id(0),
hint(hint),
type(type),
format(format),
shared_bitmap(nullptr) {}
ResourceProvider::Resource::Resource(uint8_t* pixels,
SharedBitmap* bitmap,
const gfx::Size& size,
Origin origin,
GLenum filter)
: child_id(0),
gl_id(0),
gl_pixel_buffer_id(0),
gl_upload_query_id(0),
gl_read_lock_query_id(0),
pixels(pixels),
lock_for_read_count(0),
imported_count(0),
exported_count(0),
dirty_image(false),
locked_for_write(false),
lost(false),
marked_for_deletion(false),
allocated(false),
read_lock_fences_enabled(false),
has_shared_bitmap_id(!!bitmap),
is_overlay_candidate(false),
read_lock_fence(nullptr),
size(size),
origin(origin),
target(0),
original_filter(filter),
filter(filter),
image_id(0),
bound_image_id(0),
hint(TEXTURE_HINT_IMMUTABLE),
type(RESOURCE_TYPE_BITMAP),
format(RGBA_8888),
shared_bitmap(bitmap) {
DCHECK(origin == DELEGATED || pixels);
if (bitmap)
shared_bitmap_id = bitmap->id();
}
ResourceProvider::Resource::Resource(const SharedBitmapId& bitmap_id,
const gfx::Size& size,
Origin origin,
GLenum filter)
: child_id(0),
gl_id(0),
gl_pixel_buffer_id(0),
gl_upload_query_id(0),
gl_read_lock_query_id(0),
pixels(nullptr),
lock_for_read_count(0),
imported_count(0),
exported_count(0),
dirty_image(false),
locked_for_write(false),
lost(false),
marked_for_deletion(false),
allocated(false),
read_lock_fences_enabled(false),
has_shared_bitmap_id(true),
is_overlay_candidate(false),
read_lock_fence(nullptr),
size(size),
origin(origin),
target(0),
original_filter(filter),
filter(filter),
image_id(0),
bound_image_id(0),
hint(TEXTURE_HINT_IMMUTABLE),
type(RESOURCE_TYPE_BITMAP),
format(RGBA_8888),
shared_bitmap_id(bitmap_id),
shared_bitmap(nullptr) {}
ResourceProvider::Resource::Resource(Resource&& other) = default;
void ResourceProvider::Resource::set_mailbox(const TextureMailbox& mailbox) {
mailbox_ = mailbox;
if (IsGpuResourceType(type)) {
synchronization_state_ =
(mailbox.sync_token().HasData() ? NEEDS_WAIT : LOCALLY_USED);
needs_sync_token_ = !mailbox.sync_token().HasData();
} else {
synchronization_state_ = SYNCHRONIZED;
}
}
void ResourceProvider::Resource::SetLocallyUsed() {
synchronization_state_ = LOCALLY_USED;
mailbox_.set_sync_token(gpu::SyncToken());
needs_sync_token_ = IsGpuResourceType(type);
}
void ResourceProvider::Resource::SetSynchronized() {
synchronization_state_ = SYNCHRONIZED;
}
void ResourceProvider::Resource::UpdateSyncToken(
const gpu::SyncToken& sync_token) {
// In the case of context lost, this sync token may be empty since sync tokens
// may not be generated unless a successful flush occurred. However, we will
// assume the task runner is calling this function properly and update the
// state accordingly.
mailbox_.set_sync_token(sync_token);
synchronization_state_ = NEEDS_WAIT;
needs_sync_token_ = false;
}
int8_t* ResourceProvider::Resource::GetSyncTokenData() {
return mailbox_.GetSyncTokenData();
}
void ResourceProvider::Resource::WaitSyncToken(gpu::gles2::GLES2Interface* gl) {
// Make sure we are only called when state actually needs to wait.
DCHECK_EQ(NEEDS_WAIT, synchronization_state_);
// Make sure sync token is not stale.
DCHECK(!needs_sync_token_);
// In the case of context lost, this sync token may be empty (see comment in
// the UpdateSyncToken() function). The WaitSyncTokenCHROMIUM() function
// handles empty sync tokens properly so just wait anyways and update the
// state the synchronized.
gl->WaitSyncTokenCHROMIUM(mailbox_.sync_token().GetConstData());
SetSynchronized();
}
ResourceProvider::Child::Child()
: gpu_memory_buffer_client_id(-1),
marked_for_deletion(false),
needs_sync_tokens(true) {}
ResourceProvider::Child::Child(const Child& other) = default;
ResourceProvider::Child::~Child() {}
ResourceProvider::ResourceProvider(
ContextProvider* compositor_context_provider,
SharedBitmapManager* shared_bitmap_manager,
gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
BlockingTaskRunner* blocking_main_thread_task_runner,
int highp_threshold_min,
size_t id_allocation_chunk_size,
bool delegated_sync_points_required,
bool use_gpu_memory_buffer_resources,
const std::vector<unsigned>& use_image_texture_targets)
: compositor_context_provider_(compositor_context_provider),
shared_bitmap_manager_(shared_bitmap_manager),
gpu_memory_buffer_manager_(gpu_memory_buffer_manager),
blocking_main_thread_task_runner_(blocking_main_thread_task_runner),
lost_output_surface_(false),
highp_threshold_min_(highp_threshold_min),
next_id_(1),
next_child_(1),
delegated_sync_points_required_(delegated_sync_points_required),
default_resource_type_(use_gpu_memory_buffer_resources
? RESOURCE_TYPE_GPU_MEMORY_BUFFER
: RESOURCE_TYPE_GL_TEXTURE),
use_texture_storage_ext_(false),
use_texture_format_bgra_(false),
use_texture_usage_hint_(false),
use_compressed_texture_etc1_(false),
yuv_resource_format_(LUMINANCE_8),
max_texture_size_(0),
best_texture_format_(RGBA_8888),
best_render_buffer_format_(RGBA_8888),
id_allocation_chunk_size_(id_allocation_chunk_size),
use_sync_query_(false),
use_image_texture_targets_(use_image_texture_targets),
tracing_id_(g_next_resource_provider_tracing_id.GetNext()) {
DCHECK(id_allocation_chunk_size_);
DCHECK(thread_checker_.CalledOnValidThread());
// In certain cases, ThreadTaskRunnerHandle isn't set (Android Webview).
// Don't register a dump provider in these cases.
// TODO(ericrk): Get this working in Android Webview. crbug.com/517156
if (base::ThreadTaskRunnerHandle::IsSet()) {
base::trace_event::MemoryDumpManager::GetInstance()->RegisterDumpProvider(
this, "cc::ResourceProvider", base::ThreadTaskRunnerHandle::Get());
}
if (!compositor_context_provider_) {
default_resource_type_ = RESOURCE_TYPE_BITMAP;
// Pick an arbitrary limit here similar to what hardware might.
max_texture_size_ = 16 * 1024;
best_texture_format_ = RGBA_8888;
return;
}
DCHECK(!texture_id_allocator_);
DCHECK(!buffer_id_allocator_);
const auto& caps = compositor_context_provider_->ContextCapabilities();
DCHECK(IsGpuResourceType(default_resource_type_));
use_texture_storage_ext_ = caps.texture_storage;
use_texture_format_bgra_ = caps.texture_format_bgra8888;
use_texture_usage_hint_ = caps.texture_usage;
use_compressed_texture_etc1_ = caps.texture_format_etc1;
yuv_resource_format_ = caps.texture_rg ? RED_8 : LUMINANCE_8;
yuv_highbit_resource_format_ = yuv_resource_format_;
if (caps.texture_half_float_linear)
yuv_highbit_resource_format_ = LUMINANCE_F16;
use_sync_query_ = caps.sync_query;
GLES2Interface* gl = ContextGL();
max_texture_size_ = 0; // Context expects cleared value.
gl->GetIntegerv(GL_MAX_TEXTURE_SIZE, &max_texture_size_);
best_texture_format_ =
PlatformColor::BestSupportedTextureFormat(use_texture_format_bgra_);
best_render_buffer_format_ = PlatformColor::BestSupportedTextureFormat(
caps.render_buffer_format_bgra8888);
texture_id_allocator_.reset(
new TextureIdAllocator(gl, id_allocation_chunk_size_));
buffer_id_allocator_.reset(
new BufferIdAllocator(gl, id_allocation_chunk_size_));
}
ResourceProvider::~ResourceProvider() {
base::trace_event::MemoryDumpManager::GetInstance()->UnregisterDumpProvider(
this);
while (!children_.empty())
DestroyChildInternal(children_.begin(), FOR_SHUTDOWN);
while (!resources_.empty())
DeleteResourceInternal(resources_.begin(), FOR_SHUTDOWN);
GLES2Interface* gl = ContextGL();
if (!IsGpuResourceType(default_resource_type_)) {
// We are not in GL mode, but double check before returning.
DCHECK(!gl);
return;
}
DCHECK(gl);
#if DCHECK_IS_ON()
// Check that all GL resources has been deleted.
for (ResourceMap::const_iterator itr = resources_.begin();
itr != resources_.end(); ++itr) {
DCHECK(!IsGpuResourceType(itr->second.type));
}
#endif // DCHECK_IS_ON()
texture_id_allocator_ = nullptr;
buffer_id_allocator_ = nullptr;
gl->Finish();
}
bool ResourceProvider::IsResourceFormatSupported(ResourceFormat format) const {
gpu::Capabilities caps;
if (compositor_context_provider_)
caps = compositor_context_provider_->ContextCapabilities();
switch (format) {
case ALPHA_8:
case RGBA_4444:
case RGBA_8888:
case RGB_565:
case LUMINANCE_8:
return true;
case BGRA_8888:
return caps.texture_format_bgra8888;
case ETC1:
return caps.texture_format_etc1;
case RED_8:
return caps.texture_rg;
case LUMINANCE_F16:
return caps.texture_half_float_linear;
}
NOTREACHED();
return false;
}
bool ResourceProvider::InUseByConsumer(ResourceId id) {
Resource* resource = GetResource(id);
return resource->lock_for_read_count > 0 || resource->exported_count > 0 ||
resource->lost;
}
bool ResourceProvider::IsLost(ResourceId id) {
Resource* resource = GetResource(id);
return resource->lost;
}
void ResourceProvider::LoseResourceForTesting(ResourceId id) {
Resource* resource = GetResource(id);
DCHECK(resource);
resource->lost = true;
}
ResourceFormat ResourceProvider::YuvResourceFormat(int bits) const {
if (bits > 8) {
return yuv_highbit_resource_format_;
} else {
return yuv_resource_format_;
}
}
ResourceId ResourceProvider::CreateResource(const gfx::Size& size,
TextureHint hint,
ResourceFormat format) {
DCHECK(!size.IsEmpty());
switch (default_resource_type_) {
case RESOURCE_TYPE_GPU_MEMORY_BUFFER:
// GPU memory buffers don't support LUMINANCE_F16.
if (format != LUMINANCE_F16) {
return CreateGLTexture(size, hint, RESOURCE_TYPE_GPU_MEMORY_BUFFER,
format);
}
// Fall through and use a regular texture.
case RESOURCE_TYPE_GL_TEXTURE:
return CreateGLTexture(size, hint, RESOURCE_TYPE_GL_TEXTURE, format);
case RESOURCE_TYPE_BITMAP:
DCHECK_EQ(RGBA_8888, format);
return CreateBitmap(size);
}
LOG(FATAL) << "Invalid default resource type.";
return 0;
}
ResourceId ResourceProvider::CreateGpuMemoryBufferResource(
const gfx::Size& size,
TextureHint hint,
ResourceFormat format) {
DCHECK(!size.IsEmpty());
switch (default_resource_type_) {
case RESOURCE_TYPE_GPU_MEMORY_BUFFER:
case RESOURCE_TYPE_GL_TEXTURE: {
return CreateGLTexture(size, hint, RESOURCE_TYPE_GPU_MEMORY_BUFFER,
format);
}
case RESOURCE_TYPE_BITMAP:
DCHECK_EQ(RGBA_8888, format);
return CreateBitmap(size);
}
LOG(FATAL) << "Invalid default resource type.";
return 0;
}
ResourceId ResourceProvider::CreateGLTexture(const gfx::Size& size,
TextureHint hint,
ResourceType type,
ResourceFormat format) {
DCHECK_LE(size.width(), max_texture_size_);
DCHECK_LE(size.height(), max_texture_size_);
DCHECK(thread_checker_.CalledOnValidThread());
GLenum target = type == RESOURCE_TYPE_GPU_MEMORY_BUFFER
? GetImageTextureTarget(format)
: GL_TEXTURE_2D;
ResourceId id = next_id_++;
Resource* resource =
InsertResource(id, Resource(0, size, Resource::INTERNAL, target,
GL_LINEAR, hint, type, format));
resource->allocated = false;
return id;
}
ResourceId ResourceProvider::CreateBitmap(const gfx::Size& size) {
DCHECK(thread_checker_.CalledOnValidThread());
std::unique_ptr<SharedBitmap> bitmap =
shared_bitmap_manager_->AllocateSharedBitmap(size);
uint8_t* pixels = bitmap->pixels();
DCHECK(pixels);
ResourceId id = next_id_++;
Resource* resource = InsertResource(
id,
Resource(pixels, bitmap.release(), size, Resource::INTERNAL, GL_LINEAR));
resource->allocated = true;
return id;
}
ResourceId ResourceProvider::CreateResourceFromTextureMailbox(
const TextureMailbox& mailbox,
std::unique_ptr<SingleReleaseCallbackImpl> release_callback_impl,
bool read_lock_fences_enabled) {
DCHECK(thread_checker_.CalledOnValidThread());
// Just store the information. Mailbox will be consumed in LockForRead().
ResourceId id = next_id_++;
DCHECK(mailbox.IsValid());
Resource* resource = nullptr;
if (mailbox.IsTexture()) {
resource = InsertResource(
id,
Resource(0, mailbox.size_in_pixels(), Resource::EXTERNAL,
mailbox.target(),
mailbox.nearest_neighbor() ? GL_NEAREST : GL_LINEAR,
TEXTURE_HINT_IMMUTABLE, RESOURCE_TYPE_GL_TEXTURE, RGBA_8888));
} else {
DCHECK(mailbox.IsSharedMemory());
SharedBitmap* shared_bitmap = mailbox.shared_bitmap();
uint8_t* pixels = shared_bitmap->pixels();
DCHECK(pixels);
resource = InsertResource(
id, Resource(pixels, shared_bitmap, mailbox.size_in_pixels(),
Resource::EXTERNAL, GL_LINEAR));
}
resource->allocated = true;
resource->set_mailbox(mailbox);
resource->release_callback_impl =
base::Bind(&SingleReleaseCallbackImpl::Run,
base::Owned(release_callback_impl.release()));
resource->read_lock_fences_enabled = read_lock_fences_enabled;
resource->is_overlay_candidate = mailbox.is_overlay_candidate();
return id;
}
ResourceId ResourceProvider::CreateResourceFromTextureMailbox(
const TextureMailbox& mailbox,
std::unique_ptr<SingleReleaseCallbackImpl> release_callback_impl) {
return CreateResourceFromTextureMailbox(
mailbox, std::move(release_callback_impl), false);
}
void ResourceProvider::DeleteResource(ResourceId id) {
DCHECK(thread_checker_.CalledOnValidThread());
ResourceMap::iterator it = resources_.find(id);
CHECK(it != resources_.end());
Resource* resource = &it->second;
DCHECK(!resource->marked_for_deletion);
DCHECK_EQ(resource->imported_count, 0);
DCHECK(!resource->locked_for_write);
if (resource->exported_count > 0 || resource->lock_for_read_count > 0 ||
!ReadLockFenceHasPassed(resource)) {
resource->marked_for_deletion = true;
return;
} else {
DeleteResourceInternal(it, NORMAL);
}
}
void ResourceProvider::DeleteResourceInternal(ResourceMap::iterator it,
DeleteStyle style) {
TRACE_EVENT0("cc", "ResourceProvider::DeleteResourceInternal");
Resource* resource = &it->second;
DCHECK(resource->exported_count == 0 || style != NORMAL);
// Exported resources are lost on shutdown.
bool exported_resource_lost =
style == FOR_SHUTDOWN && resource->exported_count > 0;
// GPU resources are lost when output surface is lost.
bool gpu_resource_lost =
IsGpuResourceType(resource->type) && lost_output_surface_;
bool lost_resource =
resource->lost || exported_resource_lost || gpu_resource_lost;
if (!lost_resource &&
resource->synchronization_state() == Resource::NEEDS_WAIT) {
DCHECK(resource->allocated);
DCHECK(IsGpuResourceType(resource->type));
GLES2Interface* gl = ContextGL();
DCHECK(gl);
resource->WaitSyncToken(gl);
}
if (resource->image_id) {
DCHECK(resource->origin == Resource::INTERNAL);
GLES2Interface* gl = ContextGL();
DCHECK(gl);
gl->DestroyImageCHROMIUM(resource->image_id);
}
if (resource->gl_upload_query_id) {
DCHECK(resource->origin == Resource::INTERNAL);
GLES2Interface* gl = ContextGL();
DCHECK(gl);
gl->DeleteQueriesEXT(1, &resource->gl_upload_query_id);
}
if (resource->gl_read_lock_query_id) {
DCHECK(resource->origin == Resource::INTERNAL);
GLES2Interface* gl = ContextGL();
DCHECK(gl);
gl->DeleteQueriesEXT(1, &resource->gl_read_lock_query_id);
}
if (resource->gl_pixel_buffer_id) {
DCHECK(resource->origin == Resource::INTERNAL);
GLES2Interface* gl = ContextGL();
DCHECK(gl);
gl->DeleteBuffers(1, &resource->gl_pixel_buffer_id);
}
if (resource->origin == Resource::EXTERNAL) {
DCHECK(resource->mailbox().IsValid());
gpu::SyncToken sync_token = resource->mailbox().sync_token();
if (IsGpuResourceType(resource->type)) {
DCHECK(resource->mailbox().IsTexture());
GLES2Interface* gl = ContextGL();
DCHECK(gl);
if (resource->gl_id) {
gl->DeleteTextures(1, &resource->gl_id);
resource->gl_id = 0;
if (!lost_resource) {
const GLuint64 fence_sync = gl->InsertFenceSyncCHROMIUM();
gl->ShallowFlushCHROMIUM();
gl->GenSyncTokenCHROMIUM(fence_sync, sync_token.GetData());
}
}
} else {
DCHECK(resource->mailbox().IsSharedMemory());
resource->shared_bitmap = nullptr;
resource->pixels = nullptr;
}
resource->release_callback_impl.Run(sync_token, lost_resource,
blocking_main_thread_task_runner_);
}
if (resource->gl_id) {
GLES2Interface* gl = ContextGL();
DCHECK(gl);
gl->DeleteTextures(1, &resource->gl_id);
resource->gl_id = 0;
}
if (resource->shared_bitmap) {
DCHECK(resource->origin != Resource::EXTERNAL);
DCHECK_EQ(RESOURCE_TYPE_BITMAP, resource->type);
delete resource->shared_bitmap;
resource->pixels = nullptr;
}
if (resource->pixels) {
DCHECK(resource->origin == Resource::INTERNAL);
delete[] resource->pixels;
resource->pixels = nullptr;
}
if (resource->gpu_memory_buffer) {
DCHECK(resource->origin == Resource::INTERNAL ||
resource->origin == Resource::DELEGATED);
resource->gpu_memory_buffer.reset();
}
resources_.erase(it);
}
ResourceProvider::ResourceType ResourceProvider::GetResourceType(
ResourceId id) {
return GetResource(id)->type;
}
GLenum ResourceProvider::GetResourceTextureTarget(ResourceId id) {
return GetResource(id)->target;
}
ResourceProvider::TextureHint ResourceProvider::GetTextureHint(ResourceId id) {
return GetResource(id)->hint;
}
void ResourceProvider::CopyToResource(ResourceId id,
const uint8_t* image,
const gfx::Size& image_size) {
Resource* resource = GetResource(id);
DCHECK(!resource->locked_for_write);
DCHECK(!resource->lock_for_read_count);
DCHECK(resource->origin == Resource::INTERNAL);
DCHECK_EQ(resource->exported_count, 0);
DCHECK(ReadLockFenceHasPassed(resource));
DCHECK_EQ(image_size.width(), resource->size.width());
DCHECK_EQ(image_size.height(), resource->size.height());
if (resource->allocated)
WaitSyncTokenIfNeeded(id);
if (resource->type == RESOURCE_TYPE_BITMAP) {
DCHECK_EQ(RESOURCE_TYPE_BITMAP, resource->type);
DCHECK(resource->allocated);
DCHECK_EQ(RGBA_8888, resource->format);
SkImageInfo source_info =
SkImageInfo::MakeN32Premul(image_size.width(), image_size.height());
size_t image_stride = image_size.width() * 4;
ScopedWriteLockSoftware lock(this, id);
SkCanvas dest(lock.sk_bitmap());
dest.writePixels(source_info, image, image_stride, 0, 0);
} else {
ScopedWriteLockGL lock(this, id, false);
unsigned resource_texture_id = lock.texture_id();
DCHECK(resource_texture_id);
GLES2Interface* gl = ContextGL();
DCHECK(gl);
gl->BindTexture(resource->target, resource_texture_id);
if (resource->format == ETC1) {
DCHECK_EQ(resource->target, static_cast<GLenum>(GL_TEXTURE_2D));
int image_bytes = ResourceUtil::CheckedSizeInBytes<int>(image_size, ETC1);
gl->CompressedTexImage2D(resource->target, 0, GLInternalFormat(ETC1),
image_size.width(), image_size.height(), 0,
image_bytes, image);
} else {
gl->TexSubImage2D(resource->target, 0, 0, 0, image_size.width(),
image_size.height(), GLDataFormat(resource->format),
GLDataType(resource->format), image);
}
const uint64_t fence_sync = gl->InsertFenceSyncCHROMIUM();
gl->OrderingBarrierCHROMIUM();
gpu::SyncToken sync_token;
gl->GenUnverifiedSyncTokenCHROMIUM(fence_sync, sync_token.GetData());
lock.set_sync_token(sync_token);
lock.set_synchronized(true);
}
}
void ResourceProvider::GenerateSyncTokenForResource(ResourceId resource_id) {
Resource* resource = GetResource(resource_id);
if (!resource->needs_sync_token())
return;
gpu::SyncToken sync_token;
GLES2Interface* gl = ContextGL();
DCHECK(gl);
const uint64_t fence_sync = gl->InsertFenceSyncCHROMIUM();
gl->OrderingBarrierCHROMIUM();
gl->GenUnverifiedSyncTokenCHROMIUM(fence_sync, sync_token.GetData());
resource->UpdateSyncToken(sync_token);
resource->SetSynchronized();
}
void ResourceProvider::GenerateSyncTokenForResources(
const ResourceIdArray& resource_ids) {
gpu::SyncToken sync_token;
bool created_sync_token = false;
for (ResourceId id : resource_ids) {
Resource* resource = GetResource(id);
if (resource->needs_sync_token()) {
if (!created_sync_token) {
GLES2Interface* gl = ContextGL();
DCHECK(gl);
const uint64_t fence_sync = gl->InsertFenceSyncCHROMIUM();
gl->OrderingBarrierCHROMIUM();
gl->GenUnverifiedSyncTokenCHROMIUM(fence_sync, sync_token.GetData());
created_sync_token = true;
}
resource->UpdateSyncToken(sync_token);
resource->SetSynchronized();
}
}
}
ResourceProvider::Resource* ResourceProvider::InsertResource(
ResourceId id,
Resource resource) {
std::pair<ResourceMap::iterator, bool> result =
resources_.insert(ResourceMap::value_type(id, std::move(resource)));
DCHECK(result.second);
return &result.first->second;
}
ResourceProvider::Resource* ResourceProvider::GetResource(ResourceId id) {
DCHECK(thread_checker_.CalledOnValidThread());
DCHECK(id);
ResourceMap::iterator it = resources_.find(id);
DCHECK(it != resources_.end());
return &it->second;
}
const ResourceProvider::Resource* ResourceProvider::LockForRead(ResourceId id) {
Resource* resource = GetResource(id);
DCHECK(!resource->locked_for_write) << "locked for write: "
<< resource->locked_for_write;
DCHECK_EQ(resource->exported_count, 0);
// Uninitialized! Call SetPixels or LockForWrite first.
DCHECK(resource->allocated);
// Mailbox sync_tokens must be processed by a call to
// WaitSyncTokenIfNeeded() prior to calling LockForRead().
DCHECK_NE(Resource::NEEDS_WAIT, resource->synchronization_state());
LazyCreate(resource);
if (IsGpuResourceType(resource->type) && !resource->gl_id) {
DCHECK(resource->origin != Resource::INTERNAL);
DCHECK(resource->mailbox().IsTexture());
GLES2Interface* gl = ContextGL();
DCHECK(gl);
resource->gl_id = gl->CreateAndConsumeTextureCHROMIUM(
resource->mailbox().target(), resource->mailbox().name());
resource->SetLocallyUsed();
}
if (!resource->pixels && resource->has_shared_bitmap_id &&
shared_bitmap_manager_) {
std::unique_ptr<SharedBitmap> bitmap =
shared_bitmap_manager_->GetSharedBitmapFromId(
resource->size, resource->shared_bitmap_id);
if (bitmap) {
resource->shared_bitmap = bitmap.release();
resource->pixels = resource->shared_bitmap->pixels();
}
}
resource->lock_for_read_count++;
if (resource->read_lock_fences_enabled) {
if (current_read_lock_fence_.get())
current_read_lock_fence_->Set();
resource->read_lock_fence = current_read_lock_fence_;
}
return resource;
}
void ResourceProvider::UnlockForRead(ResourceId id) {
DCHECK(thread_checker_.CalledOnValidThread());
ResourceMap::iterator it = resources_.find(id);
CHECK(it != resources_.end());
Resource* resource = &it->second;
DCHECK_GT(resource->lock_for_read_count, 0);
DCHECK_EQ(resource->exported_count, 0);
resource->lock_for_read_count--;
if (resource->marked_for_deletion && !resource->lock_for_read_count) {
if (!resource->child_id) {
// The resource belongs to this ResourceProvider, so it can be destroyed.
DeleteResourceInternal(it, NORMAL);
} else {
ChildMap::iterator child_it = children_.find(resource->child_id);
ResourceIdArray unused;
unused.push_back(id);
DeleteAndReturnUnusedResourcesToChild(child_it, NORMAL, unused);
}
}
}
ResourceProvider::Resource* ResourceProvider::LockForWrite(ResourceId id) {
Resource* resource = GetResource(id);
DCHECK(CanLockForWrite(id));
if (resource->allocated)
WaitSyncTokenIfNeeded(id);
resource->locked_for_write = true;
resource->SetLocallyUsed();
return resource;
}
bool ResourceProvider::CanLockForWrite(ResourceId id) {
Resource* resource = GetResource(id);
return !resource->locked_for_write && !resource->lock_for_read_count &&
!resource->exported_count && resource->origin == Resource::INTERNAL &&
!resource->lost && ReadLockFenceHasPassed(resource);
}
bool ResourceProvider::IsOverlayCandidate(ResourceId id) {
Resource* resource = GetResource(id);
return resource->is_overlay_candidate;
}
void ResourceProvider::UnlockForWrite(Resource* resource) {
DCHECK(resource->locked_for_write);
DCHECK_EQ(resource->exported_count, 0);
DCHECK(resource->origin == Resource::INTERNAL);
resource->locked_for_write = false;
}
void ResourceProvider::EnableReadLockFencesForTesting(ResourceId id) {
Resource* resource = GetResource(id);
DCHECK(resource);
resource->read_lock_fences_enabled = true;
}
ResourceProvider::ScopedReadLockGL::ScopedReadLockGL(
ResourceProvider* resource_provider,
ResourceId resource_id)
: resource_provider_(resource_provider), resource_id_(resource_id) {
const Resource* resource = resource_provider->LockForRead(resource_id);
texture_id_ = resource->gl_id;
target_ = resource->target;
size_ = resource->size;
}
ResourceProvider::ScopedReadLockGL::~ScopedReadLockGL() {
resource_provider_->UnlockForRead(resource_id_);
}
ResourceProvider::ScopedSamplerGL::ScopedSamplerGL(
ResourceProvider* resource_provider,
ResourceId resource_id,
GLenum filter)
: resource_lock_(resource_provider, resource_id),
unit_(GL_TEXTURE0),
target_(resource_provider->BindForSampling(resource_id, unit_, filter)) {}
ResourceProvider::ScopedSamplerGL::ScopedSamplerGL(
ResourceProvider* resource_provider,
ResourceId resource_id,
GLenum unit,
GLenum filter)
: resource_lock_(resource_provider, resource_id),
unit_(unit),
target_(resource_provider->BindForSampling(resource_id, unit_, filter)) {}
ResourceProvider::ScopedSamplerGL::~ScopedSamplerGL() {}
ResourceProvider::ScopedWriteLockGL::ScopedWriteLockGL(
ResourceProvider* resource_provider,
ResourceId resource_id,
bool create_mailbox)
: resource_provider_(resource_provider),
resource_id_(resource_id),
synchronized_(false) {
DCHECK(thread_checker_.CalledOnValidThread());
Resource* resource = resource_provider->LockForWrite(resource_id);
resource_provider_->LazyAllocate(resource);
if (resource->image_id && resource->dirty_image)
resource_provider_->BindImageForSampling(resource);
if (create_mailbox) {
resource_provider_->CreateMailboxAndBindResource(
resource_provider_->ContextGL(), resource);
}
texture_id_ = resource->gl_id;
target_ = resource->target;
format_ = resource->format;
size_ = resource->size;
mailbox_ = resource->mailbox();
}
ResourceProvider::ScopedWriteLockGL::~ScopedWriteLockGL() {
DCHECK(thread_checker_.CalledOnValidThread());
Resource* resource = resource_provider_->GetResource(resource_id_);
DCHECK(resource->locked_for_write);
if (sync_token_.HasData())
resource->UpdateSyncToken(sync_token_);
if (synchronized_)
resource->SetSynchronized();
resource_provider_->UnlockForWrite(resource);
}
ResourceProvider::ScopedTextureProvider::ScopedTextureProvider(
gpu::gles2::GLES2Interface* gl,
ScopedWriteLockGL* resource_lock,
bool use_mailbox)
: gl_(gl), use_mailbox_(use_mailbox) {
if (use_mailbox_) {
texture_id_ = gl_->CreateAndConsumeTextureCHROMIUM(
resource_lock->target(), resource_lock->mailbox().name());
} else {
texture_id_ = resource_lock->texture_id();
}
DCHECK(texture_id_);
}
ResourceProvider::ScopedTextureProvider::~ScopedTextureProvider() {
if (use_mailbox_)
gl_->DeleteTextures(1, &texture_id_);
}
ResourceProvider::ScopedSkSurfaceProvider::ScopedSkSurfaceProvider(
ContextProvider* context_provider,
ScopedWriteLockGL* resource_lock,
bool use_mailbox,
bool use_distance_field_text,
bool can_use_lcd_text,
int msaa_sample_count)
: texture_provider_(context_provider->ContextGL(),
resource_lock,
use_mailbox) {
GrGLTextureInfo texture_info;
texture_info.fID = texture_provider_.texture_id();
texture_info.fTarget = resource_lock->target();
GrBackendTextureDesc desc;
desc.fFlags = kRenderTarget_GrBackendTextureFlag;
desc.fWidth = resource_lock->size().width();
desc.fHeight = resource_lock->size().height();
desc.fConfig = ToGrPixelConfig(resource_lock->format());
desc.fOrigin = kTopLeft_GrSurfaceOrigin;
desc.fTextureHandle = skia::GrGLTextureInfoToGrBackendObject(texture_info);
desc.fSampleCnt = msaa_sample_count;
uint32_t flags =
use_distance_field_text ? SkSurfaceProps::kUseDistanceFieldFonts_Flag : 0;
// Use unknown pixel geometry to disable LCD text.
SkSurfaceProps surface_props(flags, kUnknown_SkPixelGeometry);
if (can_use_lcd_text) {
// LegacyFontHost will get LCD text and skia figures out what type to use.
surface_props =
SkSurfaceProps(flags, SkSurfaceProps::kLegacyFontHost_InitType);
}
sk_surface_ = SkSurface::MakeFromBackendTextureAsRenderTarget(
context_provider->GrContext(), desc, &surface_props);
}
ResourceProvider::ScopedSkSurfaceProvider::~ScopedSkSurfaceProvider() {
if (sk_surface_.get()) {
sk_surface_->prepareForExternalIO();
sk_surface_.reset();
}
}
void ResourceProvider::PopulateSkBitmapWithResource(SkBitmap* sk_bitmap,
const Resource* resource) {
DCHECK_EQ(RGBA_8888, resource->format);
SkImageInfo info = SkImageInfo::MakeN32Premul(resource->size.width(),
resource->size.height());
sk_bitmap->installPixels(info, resource->pixels, info.minRowBytes());
}
ResourceProvider::ScopedReadLockSoftware::ScopedReadLockSoftware(
ResourceProvider* resource_provider,
ResourceId resource_id)
: resource_provider_(resource_provider), resource_id_(resource_id) {
const Resource* resource = resource_provider->LockForRead(resource_id);
ResourceProvider::PopulateSkBitmapWithResource(&sk_bitmap_, resource);
}
ResourceProvider::ScopedReadLockSoftware::~ScopedReadLockSoftware() {
resource_provider_->UnlockForRead(resource_id_);
}
ResourceProvider::ScopedWriteLockSoftware::ScopedWriteLockSoftware(
ResourceProvider* resource_provider,
ResourceId resource_id)
: resource_provider_(resource_provider), resource_id_(resource_id) {
ResourceProvider::PopulateSkBitmapWithResource(
&sk_bitmap_, resource_provider->LockForWrite(resource_id));
DCHECK(valid());
}
ResourceProvider::ScopedWriteLockSoftware::~ScopedWriteLockSoftware() {
DCHECK(thread_checker_.CalledOnValidThread());
Resource* resource = resource_provider_->GetResource(resource_id_);
DCHECK(resource);
resource->SetSynchronized();
resource_provider_->UnlockForWrite(resource);
}
ResourceProvider::ScopedWriteLockGpuMemoryBuffer::
ScopedWriteLockGpuMemoryBuffer(ResourceProvider* resource_provider,
ResourceId resource_id)
: resource_provider_(resource_provider), resource_id_(resource_id) {
Resource* resource = resource_provider->LockForWrite(resource_id);
DCHECK(IsGpuResourceType(resource->type));
format_ = resource->format;
size_ = resource->size;
gpu_memory_buffer_ = std::move(resource->gpu_memory_buffer);
resource->gpu_memory_buffer = nullptr;
}
ResourceProvider::ScopedWriteLockGpuMemoryBuffer::
~ScopedWriteLockGpuMemoryBuffer() {
DCHECK(thread_checker_.CalledOnValidThread());
Resource* resource = resource_provider_->GetResource(resource_id_);
DCHECK(resource);
if (gpu_memory_buffer_) {
DCHECK(!resource->gpu_memory_buffer);
resource_provider_->LazyCreate(resource);
resource->gpu_memory_buffer = std::move(gpu_memory_buffer_);
resource->allocated = true;
resource_provider_->LazyCreateImage(resource);
resource->dirty_image = true;
resource->is_overlay_candidate = true;
// GpuMemoryBuffer provides direct access to the memory used by the GPU.
// Read lock fences are required to ensure that we're not trying to map a
// buffer that is currently in-use by the GPU.
resource->read_lock_fences_enabled = true;
}
resource->SetSynchronized();
resource_provider_->UnlockForWrite(resource);
}
gfx::GpuMemoryBuffer*
ResourceProvider::ScopedWriteLockGpuMemoryBuffer::GetGpuMemoryBuffer() {
if (!gpu_memory_buffer_) {
gpu_memory_buffer_ =
resource_provider_->gpu_memory_buffer_manager_->AllocateGpuMemoryBuffer(
size_, BufferFormat(format_),
gfx::BufferUsage::GPU_READ_CPU_READ_WRITE, gpu::kNullSurfaceHandle);
}
return gpu_memory_buffer_.get();
}
ResourceProvider::SynchronousFence::SynchronousFence(
gpu::gles2::GLES2Interface* gl)
: gl_(gl), has_synchronized_(true) {}
ResourceProvider::SynchronousFence::~SynchronousFence() {}
void ResourceProvider::SynchronousFence::Set() {
has_synchronized_ = false;
}
bool ResourceProvider::SynchronousFence::HasPassed() {
if (!has_synchronized_) {
has_synchronized_ = true;
Synchronize();
}
return true;
}
void ResourceProvider::SynchronousFence::Wait() {
HasPassed();
}
void ResourceProvider::SynchronousFence::Synchronize() {
TRACE_EVENT0("cc", "ResourceProvider::SynchronousFence::Synchronize");
gl_->Finish();
}
int ResourceProvider::CreateChild(const ReturnCallback& return_callback,
int gpu_memory_buffer_client_id) {
DCHECK(thread_checker_.CalledOnValidThread());
Child child_info;
child_info.return_callback = return_callback;
child_info.gpu_memory_buffer_client_id = gpu_memory_buffer_client_id;
int child = next_child_++;
children_[child] = child_info;
return child;
}
void ResourceProvider::SetChildNeedsSyncTokens(int child_id, bool needs) {
ChildMap::iterator it = children_.find(child_id);
DCHECK(it != children_.end());
it->second.needs_sync_tokens = needs;
}
void ResourceProvider::DestroyChild(int child_id) {
ChildMap::iterator it = children_.find(child_id);
DCHECK(it != children_.end());
DestroyChildInternal(it, NORMAL);
}
void ResourceProvider::DestroyChildInternal(ChildMap::iterator it,
DeleteStyle style) {
DCHECK(thread_checker_.CalledOnValidThread());
Child& child = it->second;
DCHECK(style == FOR_SHUTDOWN || !child.marked_for_deletion);
ResourceIdArray resources_for_child;
for (ResourceIdMap::iterator child_it = child.child_to_parent_map.begin();
child_it != child.child_to_parent_map.end(); ++child_it) {
ResourceId id = child_it->second;
resources_for_child.push_back(id);
}
child.marked_for_deletion = true;
DeleteAndReturnUnusedResourcesToChild(it, style, resources_for_child);
}
const ResourceProvider::ResourceIdMap& ResourceProvider::GetChildToParentMap(
int child) const {
DCHECK(thread_checker_.CalledOnValidThread());
ChildMap::const_iterator it = children_.find(child);
DCHECK(it != children_.end());
DCHECK(!it->second.marked_for_deletion);
return it->second.child_to_parent_map;
}
void ResourceProvider::PrepareSendToParent(const ResourceIdArray& resource_ids,
TransferableResourceArray* list) {
DCHECK(thread_checker_.CalledOnValidThread());
GLES2Interface* gl = ContextGL();
// This function goes through the array multiple times, store the resources
// as pointers so we don't have to look up the resource id multiple times.
std::vector<Resource*> resources;
resources.reserve(resource_ids.size());
for (const ResourceId id : resource_ids) {
Resource* resource = GetResource(id);
// Check the synchronization and sync token state when delegated sync points
// are required. The only case where we allow a sync token to not be set is
// the case where the image is dirty. In that case we will bind the image
// lazily and generate a sync token at that point.
DCHECK(!delegated_sync_points_required_ || resource->dirty_image ||
!resource->needs_sync_token());
// If we are validating the resource to be sent, the resource cannot be
// in a LOCALLY_USED state. It must have been properly synchronized.
DCHECK(!delegated_sync_points_required_ ||
Resource::LOCALLY_USED != resource->synchronization_state());
resources.push_back(resource);
}
// Lazily create any mailboxes and verify all unverified sync tokens.
std::vector<GLbyte*> unverified_sync_tokens;
std::vector<Resource*> need_synchronization_resources;
for (Resource* resource : resources) {
CreateMailboxAndBindResource(gl, resource);
if (delegated_sync_points_required_ && resource->needs_sync_token()) {
need_synchronization_resources.push_back(resource);
} else if (resource->mailbox().HasSyncToken() &&
!resource->mailbox().sync_token().verified_flush()) {
unverified_sync_tokens.push_back(resource->GetSyncTokenData());
}
}
// Insert sync point to synchronize the mailbox creation or bound textures.
gpu::SyncToken new_sync_token;
if (gl) {
if (!need_synchronization_resources.empty()) {
const uint64_t fence_sync = gl->InsertFenceSyncCHROMIUM();
gl->OrderingBarrierCHROMIUM();
gl->GenUnverifiedSyncTokenCHROMIUM(fence_sync, new_sync_token.GetData());
unverified_sync_tokens.push_back(new_sync_token.GetData());
}
if (!unverified_sync_tokens.empty()) {
gl->VerifySyncTokensCHROMIUM(unverified_sync_tokens.data(),
unverified_sync_tokens.size());
}
}
for (Resource* resource : need_synchronization_resources) {
resource->UpdateSyncToken(new_sync_token);
resource->SetSynchronized();
}
// Transfer Resources
DCHECK_EQ(resources.size(), resource_ids.size());
for (size_t i = 0; i < resources.size(); ++i) {
Resource* source = resources[i];
const ResourceId id = resource_ids[i];
DCHECK(!delegated_sync_points_required_ || !source->needs_sync_token());
DCHECK(!delegated_sync_points_required_ ||
Resource::LOCALLY_USED != source->synchronization_state());
TransferableResource resource;
TransferResource(source, id, &resource);
source->exported_count++;
list->push_back(resource);
}
}
void ResourceProvider::ReceiveFromChild(
int child,
const TransferableResourceArray& resources) {
DCHECK(thread_checker_.CalledOnValidThread());
GLES2Interface* gl = ContextGL();
Child& child_info = children_.find(child)->second;
DCHECK(!child_info.marked_for_deletion);
for (TransferableResourceArray::const_iterator it = resources.begin();
it != resources.end(); ++it) {
ResourceIdMap::iterator resource_in_map_it =
child_info.child_to_parent_map.find(it->id);
if (resource_in_map_it != child_info.child_to_parent_map.end()) {
Resource* resource = GetResource(resource_in_map_it->second);
resource->marked_for_deletion = false;
resource->imported_count++;
continue;
}
if ((!it->is_software && !gl) ||
(it->is_software && !shared_bitmap_manager_)) {
TRACE_EVENT0("cc", "ResourceProvider::ReceiveFromChild dropping invalid");
ReturnedResourceArray to_return;
to_return.push_back(it->ToReturnedResource());
child_info.return_callback.Run(to_return,
blocking_main_thread_task_runner_);
continue;
}
ResourceId local_id = next_id_++;
Resource* resource = nullptr;
if (it->is_software) {
resource = InsertResource(local_id,
Resource(it->mailbox_holder.mailbox, it->size,
Resource::DELEGATED, GL_LINEAR));
} else {
resource = InsertResource(
local_id, Resource(0, it->size, Resource::DELEGATED,
it->mailbox_holder.texture_target, it->filter,
TEXTURE_HINT_IMMUTABLE, RESOURCE_TYPE_GL_TEXTURE,
it->format));
resource->set_mailbox(TextureMailbox(it->mailbox_holder.mailbox,
it->mailbox_holder.sync_token,
it->mailbox_holder.texture_target));
resource->read_lock_fences_enabled = it->read_lock_fences_enabled;
resource->is_overlay_candidate = it->is_overlay_candidate;
}
resource->child_id = child;
// Don't allocate a texture for a child.
resource->allocated = true;
resource->imported_count = 1;
child_info.parent_to_child_map[local_id] = it->id;
child_info.child_to_parent_map[it->id] = local_id;
}
}
void ResourceProvider::DeclareUsedResourcesFromChild(
int child,
const ResourceIdSet& resources_from_child) {
DCHECK(thread_checker_.CalledOnValidThread());
ChildMap::iterator child_it = children_.find(child);
DCHECK(child_it != children_.end());
Child& child_info = child_it->second;
DCHECK(!child_info.marked_for_deletion);
ResourceIdArray unused;
for (ResourceIdMap::iterator it = child_info.child_to_parent_map.begin();
it != child_info.child_to_parent_map.end(); ++it) {
ResourceId local_id = it->second;
bool resource_is_in_use = resources_from_child.count(it->first) > 0;
if (!resource_is_in_use)
unused.push_back(local_id);
}
DeleteAndReturnUnusedResourcesToChild(child_it, NORMAL, unused);
}
void ResourceProvider::ReceiveReturnsFromParent(
const ReturnedResourceArray& resources) {
DCHECK(thread_checker_.CalledOnValidThread());
GLES2Interface* gl = ContextGL();
std::unordered_map<int, ResourceIdArray> resources_for_child;
for (const ReturnedResource& returned : resources) {
ResourceId local_id = returned.id;
ResourceMap::iterator map_iterator = resources_.find(local_id);
// Resource was already lost (e.g. it belonged to a child that was
// destroyed).
if (map_iterator == resources_.end())
continue;
Resource* resource = &map_iterator->second;
CHECK_GE(resource->exported_count, returned.count);
resource->exported_count -= returned.count;
resource->lost |= returned.lost;
if (resource->exported_count)
continue;
if (returned.sync_token.HasData()) {
DCHECK(!resource->has_shared_bitmap_id);
if (resource->origin == Resource::INTERNAL) {
DCHECK(resource->gl_id);
DCHECK(returned.sync_token.HasData());
gl->WaitSyncTokenCHROMIUM(returned.sync_token.GetConstData());
resource->SetSynchronized();
} else {
DCHECK(!resource->gl_id);
resource->UpdateSyncToken(returned.sync_token);
}
}
if (!resource->marked_for_deletion)
continue;
if (!resource->child_id) {
// The resource belongs to this ResourceProvider, so it can be destroyed.
DeleteResourceInternal(map_iterator, NORMAL);
continue;
}
DCHECK(resource->origin == Resource::DELEGATED);
resources_for_child[resource->child_id].push_back(local_id);
}
for (const auto& children : resources_for_child) {
ChildMap::iterator child_it = children_.find(children.first);
DCHECK(child_it != children_.end());
DeleteAndReturnUnusedResourcesToChild(child_it, NORMAL, children.second);
}
}
void ResourceProvider::CreateMailboxAndBindResource(
gpu::gles2::GLES2Interface* gl,
Resource* resource) {
if (resource->type != RESOURCE_TYPE_BITMAP) {
if (!resource->mailbox().IsValid()) {
LazyCreate(resource);
gpu::MailboxHolder mailbox_holder;
mailbox_holder.texture_target = resource->target;
gl->GenMailboxCHROMIUM(mailbox_holder.mailbox.name);
gl->ProduceTextureDirectCHROMIUM(resource->gl_id,
mailbox_holder.texture_target,
mailbox_holder.mailbox.name);
resource->set_mailbox(TextureMailbox(mailbox_holder));
}
if (resource->image_id && resource->dirty_image) {
DCHECK(resource->gl_id);
DCHECK(resource->origin == Resource::INTERNAL);
BindImageForSampling(resource);
}
}
}
void ResourceProvider::TransferResource(Resource* source,
ResourceId id,
TransferableResource* resource) {
DCHECK(!source->locked_for_write);
DCHECK(!source->lock_for_read_count);
DCHECK(source->origin != Resource::EXTERNAL || source->mailbox().IsValid());
DCHECK(source->allocated);
resource->id = id;
resource->format = source->format;
resource->mailbox_holder.texture_target = source->target;
resource->filter = source->filter;
resource->size = source->size;
resource->read_lock_fences_enabled = source->read_lock_fences_enabled;
resource->is_overlay_candidate = source->is_overlay_candidate;
if (source->type == RESOURCE_TYPE_BITMAP) {
resource->mailbox_holder.mailbox = source->shared_bitmap_id;
resource->is_software = true;
} else {
DCHECK(source->mailbox().IsValid());
DCHECK(source->mailbox().IsTexture());
DCHECK(!source->image_id || !source->dirty_image);
// This is either an external resource, or a compositor resource that we
// already exported. Make sure to forward the sync point that we were given.
resource->mailbox_holder.mailbox = source->mailbox().mailbox();
resource->mailbox_holder.texture_target = source->mailbox().target();
resource->mailbox_holder.sync_token = source->mailbox().sync_token();
}
}
void ResourceProvider::DeleteAndReturnUnusedResourcesToChild(
ChildMap::iterator child_it,
DeleteStyle style,
const ResourceIdArray& unused) {
DCHECK(thread_checker_.CalledOnValidThread());
DCHECK(child_it != children_.end());
Child* child_info = &child_it->second;
if (unused.empty() && !child_info->marked_for_deletion)
return;
ReturnedResourceArray to_return;
to_return.reserve(unused.size());
std::vector<GLbyte*> unverified_sync_tokens;
bool need_sync_token = false;
GLES2Interface* gl = ContextGL();
for (ResourceId local_id : unused) {
ResourceMap::iterator it = resources_.find(local_id);
CHECK(it != resources_.end());
Resource& resource = it->second;
DCHECK(!resource.locked_for_write);
DCHECK(child_info->parent_to_child_map.count(local_id));
ResourceId child_id = child_info->parent_to_child_map[local_id];
DCHECK(child_info->child_to_parent_map.count(child_id));
bool is_lost = resource.lost ||
(IsGpuResourceType(resource.type) && lost_output_surface_);
if (resource.exported_count > 0 || resource.lock_for_read_count > 0) {
if (style != FOR_SHUTDOWN) {
// Defer this resource deletion.
resource.marked_for_deletion = true;
continue;
}
// We can't postpone the deletion, so we'll have to lose it.
is_lost = true;
} else if (!ReadLockFenceHasPassed(&resource)) {
// TODO(dcastagna): see if it's possible to use this logic for
// the branch above too, where the resource is locked or still exported.
if (style != FOR_SHUTDOWN && !child_info->marked_for_deletion) {
// Defer this resource deletion.
resource.marked_for_deletion = true;
continue;
}
// We can't postpone the deletion, so we'll have to lose it.
is_lost = true;
}
if (gl && resource.filter != resource.original_filter) {
DCHECK(resource.target);
DCHECK(resource.gl_id);
gl->BindTexture(resource.target, resource.gl_id);
gl->TexParameteri(resource.target, GL_TEXTURE_MIN_FILTER,
resource.original_filter);
gl->TexParameteri(resource.target, GL_TEXTURE_MAG_FILTER,
resource.original_filter);
resource.SetLocallyUsed();
}
ReturnedResource returned;
returned.id = child_id;
if (resource.needs_sync_token())
need_sync_token = true;
else
returned.sync_token = resource.mailbox().sync_token();
returned.count = resource.imported_count;
returned.lost = is_lost;
to_return.push_back(returned);
child_info->parent_to_child_map.erase(local_id);
child_info->child_to_parent_map.erase(child_id);
resource.imported_count = 0;
DeleteResourceInternal(it, style);
// Before returning any sync tokens, they must be verified. Note that we
// need to verify the sync token inside of the "to_return" array.
if (to_return.back().sync_token.HasData() &&
!to_return.back().sync_token.verified_flush()) {
unverified_sync_tokens.push_back(to_return.back().sync_token.GetData());
}
}
gpu::SyncToken new_sync_token;
if (need_sync_token && child_info->needs_sync_tokens) {
DCHECK(gl);
const uint64_t fence_sync = gl->InsertFenceSyncCHROMIUM();
gl->OrderingBarrierCHROMIUM();
gl->GenUnverifiedSyncTokenCHROMIUM(fence_sync, new_sync_token.GetData());
unverified_sync_tokens.push_back(new_sync_token.GetData());
}
if (!unverified_sync_tokens.empty()) {
DCHECK(gl);
gl->VerifySyncTokensCHROMIUM(unverified_sync_tokens.data(),
unverified_sync_tokens.size());
}
if (new_sync_token.HasData()) {
DCHECK(need_sync_token && child_info->needs_sync_tokens);
for (ReturnedResource& returned_resource : to_return) {
if (!returned_resource.sync_token.HasData())
returned_resource.sync_token = new_sync_token;
}
}
if (!to_return.empty())
child_info->return_callback.Run(to_return,
blocking_main_thread_task_runner_);
if (child_info->marked_for_deletion &&
child_info->parent_to_child_map.empty()) {
DCHECK(child_info->child_to_parent_map.empty());
children_.erase(child_it);
}
}
GLenum ResourceProvider::BindForSampling(ResourceId resource_id,
GLenum unit,
GLenum filter) {
DCHECK(thread_checker_.CalledOnValidThread());
GLES2Interface* gl = ContextGL();
ResourceMap::iterator it = resources_.find(resource_id);
DCHECK(it != resources_.end());
Resource* resource = &it->second;
DCHECK(resource->lock_for_read_count);
DCHECK(!resource->locked_for_write);
ScopedSetActiveTexture scoped_active_tex(gl, unit);
GLenum target = resource->target;
gl->BindTexture(target, resource->gl_id);
if (filter != resource->filter) {
gl->TexParameteri(target, GL_TEXTURE_MIN_FILTER, filter);
gl->TexParameteri(target, GL_TEXTURE_MAG_FILTER, filter);
resource->filter = filter;
}
if (resource->image_id && resource->dirty_image)
BindImageForSampling(resource);
return target;
}
void ResourceProvider::CreateForTesting(ResourceId id) {
LazyCreate(GetResource(id));
}
void ResourceProvider::LazyCreate(Resource* resource) {
if (!IsGpuResourceType(resource->type) ||
resource->origin != Resource::INTERNAL)
return;
if (resource->gl_id)
return;
DCHECK(resource->origin == Resource::INTERNAL);
DCHECK(!resource->mailbox().IsValid());
resource->gl_id = texture_id_allocator_->NextId();
GLES2Interface* gl = ContextGL();
DCHECK(gl);
// Create and set texture properties. Allocation is delayed until needed.
gl->BindTexture(resource->target, resource->gl_id);
gl->TexParameteri(resource->target, GL_TEXTURE_MIN_FILTER,
resource->original_filter);
gl->TexParameteri(resource->target, GL_TEXTURE_MAG_FILTER,
resource->original_filter);
gl->TexParameteri(resource->target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
gl->TexParameteri(resource->target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
if (use_texture_usage_hint_ && (resource->hint & TEXTURE_HINT_FRAMEBUFFER)) {
gl->TexParameteri(resource->target, GL_TEXTURE_USAGE_ANGLE,
GL_FRAMEBUFFER_ATTACHMENT_ANGLE);
}
}
void ResourceProvider::AllocateForTesting(ResourceId id) {
LazyAllocate(GetResource(id));
}
void ResourceProvider::LazyAllocate(Resource* resource) {
DCHECK(resource);
if (resource->allocated)
return;
LazyCreate(resource);
if (!resource->gl_id)
return;
resource->allocated = true;
GLES2Interface* gl = ContextGL();
gfx::Size& size = resource->size;
ResourceFormat format = resource->format;
gl->BindTexture(resource->target, resource->gl_id);
if (resource->type == RESOURCE_TYPE_GPU_MEMORY_BUFFER) {
resource->gpu_memory_buffer =
gpu_memory_buffer_manager_->AllocateGpuMemoryBuffer(
size, BufferFormat(format),
gfx::BufferUsage::GPU_READ_CPU_READ_WRITE, gpu::kNullSurfaceHandle);
LazyCreateImage(resource);
resource->dirty_image = true;
resource->is_overlay_candidate = true;
// GpuMemoryBuffer provides direct access to the memory used by the GPU.
// Read lock fences are required to ensure that we're not trying to map a
// buffer that is currently in-use by the GPU.
resource->read_lock_fences_enabled = true;
} else if (use_texture_storage_ext_ &&
IsFormatSupportedForStorage(format, use_texture_format_bgra_) &&
(resource->hint & TEXTURE_HINT_IMMUTABLE)) {
GLenum storage_format = TextureToStorageFormat(format);
gl->TexStorage2DEXT(resource->target, 1, storage_format, size.width(),
size.height());
} else {
// ETC1 does not support preallocation.
if (format != ETC1) {
gl->TexImage2D(resource->target, 0, GLInternalFormat(format),
size.width(), size.height(), 0, GLDataFormat(format),
GLDataType(format), nullptr);
}
}
}
void ResourceProvider::LazyCreateImage(Resource* resource) {
DCHECK(resource->gpu_memory_buffer);
DCHECK(resource->gl_id);
DCHECK(resource->allocated);
// Avoid crashing in release builds if GpuMemoryBuffer allocation fails.
// http://crbug.com/554541
if (!resource->gpu_memory_buffer)
return;
if (!resource->image_id) {
GLES2Interface* gl = ContextGL();
DCHECK(gl);
#if defined(OS_CHROMEOS) && defined(ARCH_CPU_ARM_FAMILY)
// TODO(reveman): This avoids a performance problem on ARM ChromeOS
// devices. This only works with shared memory backed buffers.
// crbug.com/580166
DCHECK_EQ(resource->gpu_memory_buffer->GetHandle().type,
gfx::SHARED_MEMORY_BUFFER);
#endif
resource->image_id = gl->CreateImageCHROMIUM(
resource->gpu_memory_buffer->AsClientBuffer(), resource->size.width(),
resource->size.height(), GLInternalFormat(resource->format));
DCHECK(resource->image_id || IsGLContextLost());
resource->SetLocallyUsed();
}
}
void ResourceProvider::BindImageForSampling(Resource* resource) {
GLES2Interface* gl = ContextGL();
DCHECK(resource->gl_id);
DCHECK(resource->image_id);
// Release image currently bound to texture.
gl->BindTexture(resource->target, resource->gl_id);
if (resource->bound_image_id)
gl->ReleaseTexImage2DCHROMIUM(resource->target, resource->bound_image_id);
gl->BindTexImage2DCHROMIUM(resource->target, resource->image_id);
resource->bound_image_id = resource->image_id;
resource->dirty_image = false;
resource->SetLocallyUsed();
}
void ResourceProvider::WaitSyncTokenIfNeeded(ResourceId id) {
Resource* resource = GetResource(id);
DCHECK_EQ(resource->exported_count, 0);
DCHECK(resource->allocated);
if (Resource::NEEDS_WAIT == resource->synchronization_state()) {
DCHECK(IsGpuResourceType(resource->type));
GLES2Interface* gl = ContextGL();
DCHECK(gl);
resource->WaitSyncToken(gl);
}
}
GLint ResourceProvider::GetActiveTextureUnit(GLES2Interface* gl) {
GLint active_unit = 0;
gl->GetIntegerv(GL_ACTIVE_TEXTURE, &active_unit);
return active_unit;
}
GLenum ResourceProvider::GetImageTextureTarget(ResourceFormat format) {
gfx::BufferFormat buffer_format = BufferFormat(format);
DCHECK_GT(use_image_texture_targets_.size(),
static_cast<size_t>(buffer_format));
return use_image_texture_targets_[static_cast<size_t>(buffer_format)];
}
void ResourceProvider::ValidateResource(ResourceId id) const {
DCHECK(thread_checker_.CalledOnValidThread());
DCHECK(id);
DCHECK(resources_.find(id) != resources_.end());
}
GLES2Interface* ResourceProvider::ContextGL() const {
ContextProvider* context_provider = compositor_context_provider_;
return context_provider ? context_provider->ContextGL() : nullptr;
}
bool ResourceProvider::IsGLContextLost() const {
return ContextGL()->GetGraphicsResetStatusKHR() != GL_NO_ERROR;
}
bool ResourceProvider::OnMemoryDump(
const base::trace_event::MemoryDumpArgs& args,
base::trace_event::ProcessMemoryDump* pmd) {
DCHECK(thread_checker_.CalledOnValidThread());
const uint64_t tracing_process_id =
base::trace_event::MemoryDumpManager::GetInstance()
->GetTracingProcessId();
for (const auto& resource_entry : resources_) {
const auto& resource = resource_entry.second;
bool backing_memory_allocated = false;
switch (resource.type) {
case RESOURCE_TYPE_GPU_MEMORY_BUFFER:
backing_memory_allocated = !!resource.gpu_memory_buffer;
break;
case RESOURCE_TYPE_GL_TEXTURE:
backing_memory_allocated = !!resource.gl_id;
break;
case RESOURCE_TYPE_BITMAP:
backing_memory_allocated = resource.has_shared_bitmap_id;
break;
}
if (!backing_memory_allocated) {
// Don't log unallocated resources - they have no backing memory.
continue;
}
// Resource IDs are not process-unique, so log with the ResourceProvider's
// unique id.
std::string dump_name =
base::StringPrintf("cc/resource_memory/provider_%d/resource_%d",
tracing_id_, resource_entry.first);
base::trace_event::MemoryAllocatorDump* dump =
pmd->CreateAllocatorDump(dump_name);
uint64_t total_bytes = ResourceUtil::UncheckedSizeInBytesAligned<size_t>(
resource.size, resource.format);
dump->AddScalar(base::trace_event::MemoryAllocatorDump::kNameSize,
base::trace_event::MemoryAllocatorDump::kUnitsBytes,
static_cast<uint64_t>(total_bytes));
// Resources may be shared across processes and require a shared GUID to
// prevent double counting the memory.
base::trace_event::MemoryAllocatorDumpGuid guid;
switch (resource.type) {
case RESOURCE_TYPE_GPU_MEMORY_BUFFER:
guid = gfx::GetGpuMemoryBufferGUIDForTracing(
tracing_process_id, resource.gpu_memory_buffer->GetHandle().id);
break;
case RESOURCE_TYPE_GL_TEXTURE:
DCHECK(resource.gl_id);
guid = gl::GetGLTextureClientGUIDForTracing(
compositor_context_provider_->ContextSupport()
->ShareGroupTracingGUID(),
resource.gl_id);
break;
case RESOURCE_TYPE_BITMAP:
DCHECK(resource.has_shared_bitmap_id);
guid = GetSharedBitmapGUIDForTracing(resource.shared_bitmap_id);
break;
}
DCHECK(!guid.empty());
const int kImportance = 2;
pmd->CreateSharedGlobalAllocatorDump(guid);
pmd->AddOwnershipEdge(dump->guid(), guid, kImportance);
}
return true;
}
} // namespace cc