// 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 <algorithm>
#include <limits>
#include "base/containers/hash_tables.h"
#include "base/debug/trace_event.h"
#include "base/stl_util.h"
#include "base/strings/string_split.h"
#include "base/strings/string_util.h"
#include "cc/base/util.h"
#include "cc/output/gl_renderer.h" // For the GLC() macro.
#include "cc/resources/platform_color.h"
#include "cc/resources/returned_resource.h"
#include "cc/resources/shared_bitmap_manager.h"
#include "cc/resources/transferable_resource.h"
#include "cc/scheduler/texture_uploader.h"
#include "gpu/GLES2/gl2extchromium.h"
#include "gpu/command_buffer/client/gles2_interface.h"
#include "third_party/khronos/GLES2/gl2.h"
#include "third_party/khronos/GLES2/gl2ext.h"
#include "ui/gfx/frame_time.h"
#include "ui/gfx/rect.h"
#include "ui/gfx/vector2d.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_);
}
GLES2Interface* gl_;
const size_t id_allocation_chunk_size_;
scoped_ptr<GLuint[]> ids_;
size_t next_id_index_;
};
namespace {
// Measured in seconds.
const double kSoftwareUploadTickRate = 0.000250;
const double kTextureUploadTickRate = 0.004;
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 LUMINANCE_8:
case RGB_565:
case ETC1:
NOTREACHED();
break;
}
return storage_format;
}
bool IsFormatSupportedForStorage(ResourceFormat format) {
switch (format) {
case RGBA_8888:
case BGRA_8888:
return true;
case RGBA_4444:
case LUMINANCE_8:
case RGB_565:
case ETC1:
return false;
}
return false;
}
class ScopedSetActiveTexture {
public:
ScopedSetActiveTexture(GLES2Interface* gl, GLenum unit)
: gl_(gl), unit_(unit) {
DCHECK_EQ(GL_TEXTURE0, ResourceProvider::GetActiveTextureUnit(gl_));
if (unit_ != GL_TEXTURE0)
GLC(gl_, gl_->ActiveTexture(unit_));
}
~ScopedSetActiveTexture() {
// Active unit being GL_TEXTURE0 is effectively the ground state.
if (unit_ != GL_TEXTURE0)
GLC(gl_, 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) {}
virtual ~TextureIdAllocator() {
gl_->DeleteTextures(id_allocation_chunk_size_ - next_id_index_,
ids_.get() + next_id_index_);
}
// Overridden from IdAllocator:
virtual GLuint NextId() OVERRIDE {
if (next_id_index_ == id_allocation_chunk_size_) {
gl_->GenTextures(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) {}
virtual ~BufferIdAllocator() {
gl_->DeleteBuffers(id_allocation_chunk_size_ - next_id_index_,
ids_.get() + next_id_index_);
}
// Overridden from IdAllocator:
virtual GLuint NextId() OVERRIDE {
if (next_id_index_ == id_allocation_chunk_size_) {
gl_->GenBuffers(id_allocation_chunk_size_, ids_.get());
next_id_index_ = 0;
}
return ids_[next_id_index_++];
}
private:
DISALLOW_COPY_AND_ASSIGN(BufferIdAllocator);
};
} // namespace
ResourceProvider::Resource::Resource()
: child_id(0),
gl_id(0),
gl_pixel_buffer_id(0),
gl_upload_query_id(0),
pixels(NULL),
pixel_buffer(NULL),
lock_for_read_count(0),
imported_count(0),
exported_count(0),
locked_for_write(false),
external(false),
marked_for_deletion(false),
pending_set_pixels(false),
set_pixels_completion_forced(false),
allocated(false),
enable_read_lock_fences(false),
read_lock_fence(NULL),
size(),
target(0),
original_filter(0),
filter(0),
image_id(0),
bound_image_id(0),
dirty_image(false),
texture_pool(0),
wrap_mode(0),
lost(false),
hint(TextureUsageAny),
type(static_cast<ResourceType>(0)),
format(RGBA_8888),
shared_bitmap(NULL) {}
ResourceProvider::Resource::~Resource() {}
ResourceProvider::Resource::Resource(GLuint texture_id,
gfx::Size size,
GLenum target,
GLenum filter,
GLenum texture_pool,
GLint wrap_mode,
TextureUsageHint hint,
ResourceFormat format)
: child_id(0),
gl_id(texture_id),
gl_pixel_buffer_id(0),
gl_upload_query_id(0),
pixels(NULL),
pixel_buffer(NULL),
lock_for_read_count(0),
imported_count(0),
exported_count(0),
locked_for_write(false),
external(false),
marked_for_deletion(false),
pending_set_pixels(false),
set_pixels_completion_forced(false),
allocated(false),
enable_read_lock_fences(false),
read_lock_fence(NULL),
size(size),
target(target),
original_filter(filter),
filter(filter),
image_id(0),
bound_image_id(0),
dirty_image(false),
texture_pool(texture_pool),
wrap_mode(wrap_mode),
lost(false),
hint(hint),
type(GLTexture),
format(format),
shared_bitmap(NULL) {
DCHECK(wrap_mode == GL_CLAMP_TO_EDGE || wrap_mode == GL_REPEAT);
}
ResourceProvider::Resource::Resource(uint8_t* pixels,
SharedBitmap* bitmap,
gfx::Size size,
GLenum filter,
GLint wrap_mode)
: child_id(0),
gl_id(0),
gl_pixel_buffer_id(0),
gl_upload_query_id(0),
pixels(pixels),
pixel_buffer(NULL),
lock_for_read_count(0),
imported_count(0),
exported_count(0),
locked_for_write(false),
external(false),
marked_for_deletion(false),
pending_set_pixels(false),
set_pixels_completion_forced(false),
allocated(false),
enable_read_lock_fences(false),
read_lock_fence(NULL),
size(size),
target(0),
original_filter(filter),
filter(filter),
image_id(0),
bound_image_id(0),
dirty_image(false),
texture_pool(0),
wrap_mode(wrap_mode),
lost(false),
hint(TextureUsageAny),
type(Bitmap),
format(RGBA_8888),
shared_bitmap(bitmap) {
DCHECK(wrap_mode == GL_CLAMP_TO_EDGE || wrap_mode == GL_REPEAT);
}
ResourceProvider::Child::Child() : marked_for_deletion(false) {}
ResourceProvider::Child::~Child() {}
scoped_ptr<ResourceProvider> ResourceProvider::Create(
OutputSurface* output_surface,
SharedBitmapManager* shared_bitmap_manager,
int highp_threshold_min,
bool use_rgba_4444_texture_format,
size_t id_allocation_chunk_size) {
scoped_ptr<ResourceProvider> resource_provider(
new ResourceProvider(output_surface,
shared_bitmap_manager,
highp_threshold_min,
use_rgba_4444_texture_format,
id_allocation_chunk_size));
bool success = false;
if (resource_provider->ContextGL()) {
success = resource_provider->InitializeGL();
} else {
resource_provider->InitializeSoftware();
success = true;
}
if (!success)
return scoped_ptr<ResourceProvider>();
DCHECK_NE(InvalidType, resource_provider->default_resource_type());
return resource_provider.Pass();
}
ResourceProvider::~ResourceProvider() {
while (!children_.empty())
DestroyChildInternal(children_.begin(), ForShutdown);
while (!resources_.empty())
DeleteResourceInternal(resources_.begin(), ForShutdown);
CleanUpGLIfNeeded();
}
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;
}
ResourceProvider::ResourceId ResourceProvider::CreateResource(
gfx::Size size,
GLint wrap_mode,
TextureUsageHint hint,
ResourceFormat format) {
DCHECK(!size.IsEmpty());
switch (default_resource_type_) {
case GLTexture:
return CreateGLTexture(size,
GL_TEXTURE_2D,
GL_TEXTURE_POOL_UNMANAGED_CHROMIUM,
wrap_mode,
hint,
format);
case Bitmap:
DCHECK_EQ(RGBA_8888, format);
return CreateBitmap(size, wrap_mode);
case InvalidType:
break;
}
LOG(FATAL) << "Invalid default resource type.";
return 0;
}
ResourceProvider::ResourceId ResourceProvider::CreateManagedResource(
gfx::Size size,
GLenum target,
GLint wrap_mode,
TextureUsageHint hint,
ResourceFormat format) {
DCHECK(!size.IsEmpty());
switch (default_resource_type_) {
case GLTexture:
return CreateGLTexture(size,
target,
GL_TEXTURE_POOL_MANAGED_CHROMIUM,
wrap_mode,
hint,
format);
case Bitmap:
DCHECK_EQ(RGBA_8888, format);
return CreateBitmap(size, wrap_mode);
case InvalidType:
break;
}
LOG(FATAL) << "Invalid default resource type.";
return 0;
}
ResourceProvider::ResourceId ResourceProvider::CreateGLTexture(
gfx::Size size,
GLenum target,
GLenum texture_pool,
GLint wrap_mode,
TextureUsageHint hint,
ResourceFormat format) {
DCHECK_LE(size.width(), max_texture_size_);
DCHECK_LE(size.height(), max_texture_size_);
DCHECK(thread_checker_.CalledOnValidThread());
ResourceId id = next_id_++;
Resource resource(
0, size, target, GL_LINEAR, texture_pool, wrap_mode, hint, format);
resource.allocated = false;
resources_[id] = resource;
return id;
}
ResourceProvider::ResourceId ResourceProvider::CreateBitmap(
gfx::Size size, GLint wrap_mode) {
DCHECK(thread_checker_.CalledOnValidThread());
scoped_ptr<SharedBitmap> bitmap;
if (shared_bitmap_manager_)
bitmap = shared_bitmap_manager_->AllocateSharedBitmap(size);
uint8_t* pixels;
if (bitmap)
pixels = bitmap->pixels();
else
pixels = new uint8_t[4 * size.GetArea()];
ResourceId id = next_id_++;
Resource resource(
pixels, bitmap.release(), size, GL_LINEAR, wrap_mode);
resource.allocated = true;
resources_[id] = resource;
return id;
}
ResourceProvider::ResourceId
ResourceProvider::CreateResourceFromExternalTexture(
GLuint texture_target,
GLuint texture_id) {
DCHECK(thread_checker_.CalledOnValidThread());
GLES2Interface* gl = ContextGL();
DCHECK(gl);
GLC(gl, gl->BindTexture(texture_target, texture_id));
GLC(gl, gl->TexParameteri(texture_target, GL_TEXTURE_MIN_FILTER, GL_LINEAR));
GLC(gl, gl->TexParameteri(texture_target, GL_TEXTURE_MAG_FILTER, GL_LINEAR));
GLC(gl,
gl->TexParameteri(texture_target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE));
GLC(gl,
gl->TexParameteri(texture_target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE));
ResourceId id = next_id_++;
Resource resource(texture_id,
gfx::Size(),
texture_target,
GL_LINEAR,
0,
GL_CLAMP_TO_EDGE,
TextureUsageAny,
RGBA_8888);
resource.external = true;
resource.allocated = true;
resources_[id] = resource;
return id;
}
ResourceProvider::ResourceId ResourceProvider::CreateResourceFromTextureMailbox(
const TextureMailbox& mailbox,
scoped_ptr<SingleReleaseCallback> release_callback) {
DCHECK(thread_checker_.CalledOnValidThread());
// Just store the information. Mailbox will be consumed in LockForRead().
ResourceId id = next_id_++;
DCHECK(mailbox.IsValid());
Resource& resource = resources_[id];
if (mailbox.IsTexture()) {
resource = Resource(0,
gfx::Size(),
mailbox.target(),
GL_LINEAR,
0,
GL_CLAMP_TO_EDGE,
TextureUsageAny,
RGBA_8888);
} else {
DCHECK(mailbox.IsSharedMemory());
base::SharedMemory* shared_memory = mailbox.shared_memory();
DCHECK(shared_memory->memory());
uint8_t* pixels = reinterpret_cast<uint8_t*>(shared_memory->memory());
scoped_ptr<SharedBitmap> shared_bitmap;
if (shared_bitmap_manager_) {
shared_bitmap =
shared_bitmap_manager_->GetBitmapForSharedMemory(shared_memory);
}
resource = Resource(pixels,
shared_bitmap.release(),
mailbox.shared_memory_size(),
GL_LINEAR,
GL_CLAMP_TO_EDGE);
}
resource.external = true;
resource.allocated = true;
resource.mailbox = mailbox;
resource.release_callback =
base::Bind(&SingleReleaseCallback::Run,
base::Owned(release_callback.release()));
return id;
}
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->lock_for_read_count);
DCHECK(!resource->marked_for_deletion);
DCHECK_EQ(resource->imported_count, 0);
DCHECK(resource->pending_set_pixels || !resource->locked_for_write);
if (resource->exported_count > 0) {
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;
bool lost_resource = resource->lost;
DCHECK(resource->exported_count == 0 || style != Normal);
if (style == ForShutdown && resource->exported_count > 0)
lost_resource = true;
if (resource->image_id) {
GLES2Interface* gl = ContextGL();
DCHECK(gl);
GLC(gl, gl->DestroyImageCHROMIUM(resource->image_id));
}
if (resource->gl_id && !resource->external) {
GLES2Interface* gl = ContextGL();
DCHECK(gl);
GLC(gl, gl->DeleteTextures(1, &resource->gl_id));
}
if (resource->gl_upload_query_id) {
GLES2Interface* gl = ContextGL();
DCHECK(gl);
GLC(gl, gl->DeleteQueriesEXT(1, &resource->gl_upload_query_id));
}
if (resource->gl_pixel_buffer_id) {
GLES2Interface* gl = ContextGL();
DCHECK(gl);
GLC(gl, gl->DeleteBuffers(1, &resource->gl_pixel_buffer_id));
}
if (resource->mailbox.IsValid() && resource->external) {
GLuint sync_point = resource->mailbox.sync_point();
if (resource->mailbox.IsTexture()) {
lost_resource |= lost_output_surface_;
GLES2Interface* gl = ContextGL();
DCHECK(gl);
if (resource->gl_id)
GLC(gl, gl->DeleteTextures(1, &resource->gl_id));
if (!lost_resource && resource->gl_id)
sync_point = gl->InsertSyncPointCHROMIUM();
} else {
DCHECK(resource->mailbox.IsSharedMemory());
base::SharedMemory* shared_memory = resource->mailbox.shared_memory();
if (resource->pixels && shared_memory) {
DCHECK(shared_memory->memory() == resource->pixels);
resource->pixels = NULL;
delete resource->shared_bitmap;
resource->shared_bitmap = NULL;
}
}
resource->release_callback.Run(sync_point, lost_resource);
}
if (resource->shared_bitmap) {
delete resource->shared_bitmap;
resource->pixels = NULL;
}
if (resource->pixels)
delete[] resource->pixels;
if (resource->pixel_buffer)
delete[] resource->pixel_buffer;
resources_.erase(it);
}
ResourceProvider::ResourceType ResourceProvider::GetResourceType(
ResourceId id) {
return GetResource(id)->type;
}
void ResourceProvider::SetPixels(ResourceId id,
const uint8_t* image,
gfx::Rect image_rect,
gfx::Rect source_rect,
gfx::Vector2d dest_offset) {
Resource* resource = GetResource(id);
DCHECK(!resource->locked_for_write);
DCHECK(!resource->lock_for_read_count);
DCHECK(!resource->external);
DCHECK_EQ(resource->exported_count, 0);
DCHECK(ReadLockFenceHasPassed(resource));
LazyAllocate(resource);
if (resource->gl_id) {
DCHECK(!resource->pending_set_pixels);
DCHECK_EQ(resource->target, static_cast<GLenum>(GL_TEXTURE_2D));
GLES2Interface* gl = ContextGL();
DCHECK(gl);
DCHECK(texture_uploader_.get());
gl->BindTexture(GL_TEXTURE_2D, resource->gl_id);
texture_uploader_->Upload(image,
image_rect,
source_rect,
dest_offset,
resource->format,
resource->size);
}
if (resource->pixels) {
DCHECK(resource->allocated);
DCHECK_EQ(RGBA_8888, resource->format);
SkBitmap src_full;
src_full.setConfig(
SkBitmap::kARGB_8888_Config, image_rect.width(), image_rect.height());
src_full.setPixels(const_cast<uint8_t*>(image));
SkBitmap src_subset;
SkIRect sk_source_rect = SkIRect::MakeXYWH(source_rect.x(),
source_rect.y(),
source_rect.width(),
source_rect.height());
sk_source_rect.offset(-image_rect.x(), -image_rect.y());
src_full.extractSubset(&src_subset, sk_source_rect);
ScopedWriteLockSoftware lock(this, id);
SkCanvas* dest = lock.sk_canvas();
dest->writePixels(src_subset, dest_offset.x(), dest_offset.y());
}
}
size_t ResourceProvider::NumBlockingUploads() {
if (!texture_uploader_)
return 0;
return texture_uploader_->NumBlockingUploads();
}
void ResourceProvider::MarkPendingUploadsAsNonBlocking() {
if (!texture_uploader_)
return;
texture_uploader_->MarkPendingUploadsAsNonBlocking();
}
size_t ResourceProvider::EstimatedUploadsPerTick() {
if (!texture_uploader_)
return 1u;
double textures_per_second = texture_uploader_->EstimatedTexturesPerSecond();
size_t textures_per_tick = floor(
kTextureUploadTickRate * textures_per_second);
return textures_per_tick ? textures_per_tick : 1u;
}
void ResourceProvider::FlushUploads() {
if (!texture_uploader_)
return;
texture_uploader_->Flush();
}
void ResourceProvider::ReleaseCachedData() {
if (!texture_uploader_)
return;
texture_uploader_->ReleaseCachedQueries();
}
base::TimeTicks ResourceProvider::EstimatedUploadCompletionTime(
size_t uploads_per_tick) {
if (lost_output_surface_)
return base::TimeTicks();
// Software resource uploads happen on impl thread, so don't bother batching
// them up and trying to wait for them to complete.
if (!texture_uploader_) {
return gfx::FrameTime::Now() + base::TimeDelta::FromMicroseconds(
base::Time::kMicrosecondsPerSecond * kSoftwareUploadTickRate);
}
base::TimeDelta upload_one_texture_time =
base::TimeDelta::FromMicroseconds(
base::Time::kMicrosecondsPerSecond * kTextureUploadTickRate) /
uploads_per_tick;
size_t total_uploads = NumBlockingUploads() + uploads_per_tick;
return gfx::FrameTime::Now() + upload_one_texture_time * total_uploads;
}
void ResourceProvider::Flush() {
DCHECK(thread_checker_.CalledOnValidThread());
GLES2Interface* gl = ContextGL();
if (gl)
gl->Flush();
}
void ResourceProvider::Finish() {
DCHECK(thread_checker_.CalledOnValidThread());
GLES2Interface* gl = ContextGL();
if (gl)
gl->Finish();
}
bool ResourceProvider::ShallowFlushIfSupported() {
DCHECK(thread_checker_.CalledOnValidThread());
GLES2Interface* gl = ContextGL();
if (!gl)
return false;
gl->ShallowFlushCHROMIUM();
return true;
}
ResourceProvider::Resource* ResourceProvider::GetResource(ResourceId id) {
DCHECK(thread_checker_.CalledOnValidThread());
ResourceMap::iterator it = resources_.find(id);
CHECK(it != resources_.end());
return &it->second;
}
const ResourceProvider::Resource* ResourceProvider::LockForRead(ResourceId id) {
Resource* resource = GetResource(id);
DCHECK(!resource->locked_for_write ||
resource->set_pixels_completion_forced) <<
"locked for write: " << resource->locked_for_write <<
" pixels completion forced: " << resource->set_pixels_completion_forced;
DCHECK_EQ(resource->exported_count, 0);
// Uninitialized! Call SetPixels or LockForWrite first.
DCHECK(resource->allocated);
LazyCreate(resource);
if (resource->external) {
if (!resource->gl_id && resource->mailbox.IsTexture()) {
GLES2Interface* gl = ContextGL();
DCHECK(gl);
if (resource->mailbox.sync_point()) {
GLC(gl, gl->WaitSyncPointCHROMIUM(resource->mailbox.sync_point()));
resource->mailbox.ResetSyncPoint();
}
resource->gl_id = texture_id_allocator_->NextId();
GLC(gl, gl->BindTexture(resource->target, resource->gl_id));
GLC(gl,
gl->ConsumeTextureCHROMIUM(resource->target,
resource->mailbox.data()));
}
}
resource->lock_for_read_count++;
if (resource->enable_read_lock_fences)
resource->read_lock_fence = current_read_lock_fence_;
return resource;
}
void ResourceProvider::UnlockForRead(ResourceId id) {
Resource* resource = GetResource(id);
DCHECK_GT(resource->lock_for_read_count, 0);
DCHECK_EQ(resource->exported_count, 0);
resource->lock_for_read_count--;
}
const ResourceProvider::Resource* ResourceProvider::LockForWrite(
ResourceId id) {
Resource* resource = GetResource(id);
DCHECK(!resource->locked_for_write);
DCHECK(!resource->lock_for_read_count);
DCHECK_EQ(resource->exported_count, 0);
DCHECK(!resource->external);
DCHECK(!resource->lost);
DCHECK(ReadLockFenceHasPassed(resource));
LazyAllocate(resource);
resource->locked_for_write = true;
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->external && !resource->lost &&
ReadLockFenceHasPassed(resource);
}
void ResourceProvider::UnlockForWrite(ResourceId id) {
Resource* resource = GetResource(id);
DCHECK(resource->locked_for_write);
DCHECK_EQ(resource->exported_count, 0);
DCHECK(!resource->external);
resource->locked_for_write = false;
}
ResourceProvider::ScopedReadLockGL::ScopedReadLockGL(
ResourceProvider* resource_provider,
ResourceProvider::ResourceId resource_id)
: resource_provider_(resource_provider),
resource_id_(resource_id),
texture_id_(resource_provider->LockForRead(resource_id)->gl_id) {
DCHECK(texture_id_);
}
ResourceProvider::ScopedReadLockGL::~ScopedReadLockGL() {
resource_provider_->UnlockForRead(resource_id_);
}
ResourceProvider::ScopedSamplerGL::ScopedSamplerGL(
ResourceProvider* resource_provider,
ResourceProvider::ResourceId resource_id,
GLenum filter)
: ScopedReadLockGL(resource_provider, resource_id),
unit_(GL_TEXTURE0),
target_(resource_provider->BindForSampling(resource_id, unit_, filter)) {
}
ResourceProvider::ScopedSamplerGL::ScopedSamplerGL(
ResourceProvider* resource_provider,
ResourceProvider::ResourceId resource_id,
GLenum unit,
GLenum filter)
: ScopedReadLockGL(resource_provider, resource_id),
unit_(unit),
target_(resource_provider->BindForSampling(resource_id, unit_, filter)) {
}
ResourceProvider::ScopedSamplerGL::~ScopedSamplerGL() {
}
ResourceProvider::ScopedWriteLockGL::ScopedWriteLockGL(
ResourceProvider* resource_provider,
ResourceProvider::ResourceId resource_id)
: resource_provider_(resource_provider),
resource_id_(resource_id),
texture_id_(resource_provider->LockForWrite(resource_id)->gl_id) {
DCHECK(texture_id_);
}
ResourceProvider::ScopedWriteLockGL::~ScopedWriteLockGL() {
resource_provider_->UnlockForWrite(resource_id_);
}
void ResourceProvider::PopulateSkBitmapWithResource(
SkBitmap* sk_bitmap, const Resource* resource) {
DCHECK(resource->pixels);
DCHECK_EQ(RGBA_8888, resource->format);
sk_bitmap->setConfig(SkBitmap::kARGB_8888_Config,
resource->size.width(),
resource->size.height());
sk_bitmap->setPixels(resource->pixels);
}
ResourceProvider::ScopedReadLockSoftware::ScopedReadLockSoftware(
ResourceProvider* resource_provider,
ResourceProvider::ResourceId resource_id)
: resource_provider_(resource_provider),
resource_id_(resource_id) {
const Resource* resource = resource_provider->LockForRead(resource_id);
wrap_mode_ = resource->wrap_mode;
ResourceProvider::PopulateSkBitmapWithResource(&sk_bitmap_, resource);
}
ResourceProvider::ScopedReadLockSoftware::~ScopedReadLockSoftware() {
resource_provider_->UnlockForRead(resource_id_);
}
ResourceProvider::ScopedWriteLockSoftware::ScopedWriteLockSoftware(
ResourceProvider* resource_provider,
ResourceProvider::ResourceId resource_id)
: resource_provider_(resource_provider),
resource_id_(resource_id) {
ResourceProvider::PopulateSkBitmapWithResource(
&sk_bitmap_, resource_provider->LockForWrite(resource_id));
sk_canvas_.reset(new SkCanvas(sk_bitmap_));
}
ResourceProvider::ScopedWriteLockSoftware::~ScopedWriteLockSoftware() {
resource_provider_->UnlockForWrite(resource_id_);
}
ResourceProvider::ResourceProvider(OutputSurface* output_surface,
SharedBitmapManager* shared_bitmap_manager,
int highp_threshold_min,
bool use_rgba_4444_texture_format,
size_t id_allocation_chunk_size)
: output_surface_(output_surface),
shared_bitmap_manager_(shared_bitmap_manager),
lost_output_surface_(false),
highp_threshold_min_(highp_threshold_min),
next_id_(1),
next_child_(1),
default_resource_type_(InvalidType),
use_texture_storage_ext_(false),
use_texture_usage_hint_(false),
use_compressed_texture_etc1_(false),
max_texture_size_(0),
best_texture_format_(RGBA_8888),
use_rgba_4444_texture_format_(use_rgba_4444_texture_format),
id_allocation_chunk_size_(id_allocation_chunk_size) {
DCHECK(output_surface_->HasClient());
DCHECK(id_allocation_chunk_size_);
}
void ResourceProvider::InitializeSoftware() {
DCHECK(thread_checker_.CalledOnValidThread());
DCHECK_NE(Bitmap, default_resource_type_);
CleanUpGLIfNeeded();
default_resource_type_ = Bitmap;
// Pick an arbitrary limit here similar to what hardware might.
max_texture_size_ = 16 * 1024;
best_texture_format_ = RGBA_8888;
}
bool ResourceProvider::InitializeGL() {
DCHECK(thread_checker_.CalledOnValidThread());
DCHECK(!texture_uploader_);
DCHECK_NE(GLTexture, default_resource_type_);
DCHECK(!texture_id_allocator_);
DCHECK(!buffer_id_allocator_);
default_resource_type_ = GLTexture;
const ContextProvider::Capabilities& caps =
output_surface_->context_provider()->ContextCapabilities();
bool use_bgra = caps.texture_format_bgra8888;
use_texture_storage_ext_ = caps.texture_storage;
use_texture_usage_hint_ = caps.texture_usage;
use_compressed_texture_etc1_ = caps.texture_format_etc1;
GLES2Interface* gl = ContextGL();
DCHECK(gl);
texture_uploader_ = TextureUploader::Create(gl);
max_texture_size_ = 0; // Context expects cleared value.
GLC(gl, gl->GetIntegerv(GL_MAX_TEXTURE_SIZE, &max_texture_size_));
best_texture_format_ = PlatformColor::BestTextureFormat(use_bgra);
texture_id_allocator_.reset(
new TextureIdAllocator(gl, id_allocation_chunk_size_));
buffer_id_allocator_.reset(
new BufferIdAllocator(gl, id_allocation_chunk_size_));
return true;
}
void ResourceProvider::CleanUpGLIfNeeded() {
GLES2Interface* gl = ContextGL();
if (default_resource_type_ != GLTexture) {
// We are not in GL mode, but double check before returning.
DCHECK(!gl);
DCHECK(!texture_uploader_);
return;
}
DCHECK(gl);
texture_uploader_.reset();
texture_id_allocator_.reset();
buffer_id_allocator_.reset();
Finish();
}
int ResourceProvider::CreateChild(const ReturnCallback& return_callback) {
DCHECK(thread_checker_.CalledOnValidThread());
Child child_info;
child_info.return_callback = return_callback;
int child = next_child_++;
children_[child] = child_info;
return child;
}
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 == ForShutdown || !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);
}
// If the child is going away, don't consider any resources in use.
child.in_use_resources.clear();
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& resources,
TransferableResourceArray* list) {
DCHECK(thread_checker_.CalledOnValidThread());
GLES2Interface* gl = ContextGL();
bool need_sync_point = false;
for (ResourceIdArray::const_iterator it = resources.begin();
it != resources.end();
++it) {
TransferableResource resource;
TransferResource(gl, *it, &resource);
if (!resource.sync_point && !resource.is_software)
need_sync_point = true;
++resources_.find(*it)->second.exported_count;
list->push_back(resource);
}
if (need_sync_point) {
GLuint sync_point = gl->InsertSyncPointCHROMIUM();
for (TransferableResourceArray::iterator it = list->begin();
it != list->end();
++it) {
if (!it->sync_point)
it->sync_point = sync_point;
}
}
}
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()) {
resources_[resource_in_map_it->second].imported_count++;
continue;
}
scoped_ptr<SharedBitmap> bitmap;
uint8_t* pixels = NULL;
if (it->is_software) {
if (shared_bitmap_manager_)
bitmap = shared_bitmap_manager_->GetSharedBitmapFromId(it->size,
it->mailbox);
if (bitmap)
pixels = bitmap->pixels();
}
if ((!it->is_software && !gl) || (it->is_software && !pixels)) {
TRACE_EVENT0("cc", "ResourceProvider::ReceiveFromChild dropping invalid");
ReturnedResourceArray to_return;
to_return.push_back(it->ToReturnedResource());
child_info.return_callback.Run(to_return);
continue;
}
ResourceId local_id = next_id_++;
Resource& resource = resources_[local_id];
if (it->is_software) {
resource = Resource(
pixels, bitmap.release(), it->size, GL_LINEAR, GL_CLAMP_TO_EDGE);
} else {
GLuint texture_id;
// NOTE: If the parent is a browser and the child a renderer, the parent
// is not supposed to have its context wait, because that could induce
// deadlocks and/or security issues. The caller is responsible for
// waiting asynchronously, and resetting sync_point before calling this.
// However if the parent is a renderer (e.g. browser tag), it may be ok
// (and is simpler) to wait.
if (it->sync_point)
GLC(gl, gl->WaitSyncPointCHROMIUM(it->sync_point));
texture_id = texture_id_allocator_->NextId();
GLC(gl, gl->BindTexture(it->target, texture_id));
GLC(gl, gl->ConsumeTextureCHROMIUM(it->target, it->mailbox.name));
resource = Resource(texture_id,
it->size,
it->target,
it->filter,
0,
GL_CLAMP_TO_EDGE,
TextureUsageAny,
it->format);
resource.mailbox.SetName(it->mailbox);
}
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 ResourceIdArray& 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);
child_info.in_use_resources.clear();
for (size_t i = 0; i < resources_from_child.size(); ++i) {
ResourceIdMap::iterator it =
child_info.child_to_parent_map.find(resources_from_child[i]);
DCHECK(it != child_info.child_to_parent_map.end());
ResourceId local_id = it->second;
child_info.in_use_resources.insert(local_id);
}
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 = child_info.in_use_resources.count(local_id) > 0;
if (!resource_is_in_use)
unused.push_back(local_id);
}
DeleteAndReturnUnusedResourcesToChild(child_it, Normal, unused);
}
// static
bool ResourceProvider::CompareResourceMapIteratorsByChildId(
const std::pair<ReturnedResource, ResourceMap::iterator>& a,
const std::pair<ReturnedResource, ResourceMap::iterator>& b) {
const ResourceMap::iterator& a_it = a.second;
const ResourceMap::iterator& b_it = b.second;
const Resource& a_resource = a_it->second;
const Resource& b_resource = b_it->second;
return a_resource.child_id < b_resource.child_id;
}
void ResourceProvider::ReceiveReturnsFromParent(
const ReturnedResourceArray& resources) {
DCHECK(thread_checker_.CalledOnValidThread());
GLES2Interface* gl = ContextGL();
int child_id = 0;
ResourceIdArray resources_for_child;
std::vector<std::pair<ReturnedResource, ResourceMap::iterator> >
sorted_resources;
for (ReturnedResourceArray::const_iterator it = resources.begin();
it != resources.end();
++it) {
ResourceId local_id = it->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;
sorted_resources.push_back(
std::pair<ReturnedResource, ResourceMap::iterator>(*it, map_iterator));
}
std::sort(sorted_resources.begin(),
sorted_resources.end(),
CompareResourceMapIteratorsByChildId);
ChildMap::iterator child_it = children_.end();
for (size_t i = 0; i < sorted_resources.size(); ++i) {
ReturnedResource& returned = sorted_resources[i].first;
ResourceMap::iterator& map_iterator = sorted_resources[i].second;
ResourceId local_id = map_iterator->first;
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 (resource->gl_id) {
if (returned.sync_point)
GLC(gl, gl->WaitSyncPointCHROMIUM(returned.sync_point));
} else if (!resource->shared_bitmap) {
resource->mailbox =
TextureMailbox(resource->mailbox.name(), returned.sync_point);
}
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;
}
// Delete the resource and return it to the child it came from one.
if (resource->child_id != child_id) {
if (child_id) {
DCHECK_NE(resources_for_child.size(), 0u);
DCHECK(child_it != children_.end());
DeleteAndReturnUnusedResourcesToChild(
child_it, Normal, resources_for_child);
resources_for_child.clear();
}
child_it = children_.find(resource->child_id);
DCHECK(child_it != children_.end());
child_id = resource->child_id;
}
resources_for_child.push_back(local_id);
}
if (child_id) {
DCHECK_NE(resources_for_child.size(), 0u);
DCHECK(child_it != children_.end());
DeleteAndReturnUnusedResourcesToChild(
child_it, Normal, resources_for_child);
}
}
void ResourceProvider::TransferResource(GLES2Interface* gl,
ResourceId id,
TransferableResource* resource) {
Resource* source = GetResource(id);
DCHECK(!source->locked_for_write);
DCHECK(!source->lock_for_read_count);
DCHECK(!source->external || (source->external && source->mailbox.IsValid()));
DCHECK(source->allocated);
DCHECK_EQ(source->wrap_mode, GL_CLAMP_TO_EDGE);
resource->id = id;
resource->format = source->format;
resource->target = source->target;
resource->filter = source->filter;
resource->size = source->size;
if (source->shared_bitmap) {
resource->mailbox = source->shared_bitmap->id();
resource->is_software = true;
} else if (!source->mailbox.IsValid()) {
// This is a resource allocated by the compositor, we need to produce it.
// Don't set a sync point, the caller will do it.
DCHECK(source->gl_id);
GLC(gl, gl->BindTexture(resource->target, source->gl_id));
GLC(gl, gl->GenMailboxCHROMIUM(resource->mailbox.name));
GLC(gl,
gl->ProduceTextureCHROMIUM(resource->target, resource->mailbox.name));
source->mailbox.SetName(resource->mailbox);
} else {
DCHECK(source->mailbox.IsTexture());
// 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 = source->mailbox.name();
resource->sync_point = source->mailbox.sync_point();
source->mailbox.ResetSyncPoint();
}
}
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;
GLES2Interface* gl = ContextGL();
bool need_sync_point = false;
for (size_t i = 0; i < unused.size(); ++i) {
ResourceId local_id = unused[i];
ResourceMap::iterator it = resources_.find(local_id);
CHECK(it != resources_.end());
Resource& resource = it->second;
DCHECK(!resource.locked_for_write);
DCHECK(!resource.lock_for_read_count);
DCHECK_EQ(0u, child_info->in_use_resources.count(local_id));
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 || (!resource.shared_bitmap && lost_output_surface_);
if (resource.exported_count > 0) {
if (style != ForShutdown) {
// Defer this until we receive the resource back from the parent.
resource.marked_for_deletion = true;
continue;
}
// We still have an exported_count, so we'll have to lose it.
is_lost = true;
}
if (gl && resource.filter != resource.original_filter) {
DCHECK(resource.target);
DCHECK(resource.gl_id);
GLC(gl, gl->BindTexture(resource.target, resource.gl_id));
GLC(gl,
gl->TexParameteri(resource.target,
GL_TEXTURE_MIN_FILTER,
resource.original_filter));
GLC(gl,
gl->TexParameteri(resource.target,
GL_TEXTURE_MAG_FILTER,
resource.original_filter));
}
ReturnedResource returned;
returned.id = child_id;
returned.sync_point = resource.mailbox.sync_point();
if (!returned.sync_point && !resource.shared_bitmap)
need_sync_point = true;
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);
}
if (need_sync_point) {
DCHECK(gl);
GLuint sync_point = gl->InsertSyncPointCHROMIUM();
for (size_t i = 0; i < to_return.size(); ++i) {
if (!to_return[i].sync_point)
to_return[i].sync_point = sync_point;
}
}
if (!to_return.empty())
child_info->return_callback.Run(to_return);
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);
}
}
void ResourceProvider::AcquirePixelBuffer(ResourceId id) {
Resource* resource = GetResource(id);
DCHECK(!resource->external);
DCHECK_EQ(resource->exported_count, 0);
DCHECK(!resource->image_id);
DCHECK_NE(ETC1, resource->format);
if (resource->type == GLTexture) {
GLES2Interface* gl = ContextGL();
DCHECK(gl);
if (!resource->gl_pixel_buffer_id)
resource->gl_pixel_buffer_id = buffer_id_allocator_->NextId();
gl->BindBuffer(GL_PIXEL_UNPACK_TRANSFER_BUFFER_CHROMIUM,
resource->gl_pixel_buffer_id);
unsigned bytes_per_pixel = BitsPerPixel(resource->format) / 8;
gl->BufferData(GL_PIXEL_UNPACK_TRANSFER_BUFFER_CHROMIUM,
resource->size.height() *
RoundUp(bytes_per_pixel * resource->size.width(), 4u),
NULL,
GL_DYNAMIC_DRAW);
gl->BindBuffer(GL_PIXEL_UNPACK_TRANSFER_BUFFER_CHROMIUM, 0);
}
if (resource->pixels) {
if (resource->pixel_buffer)
return;
resource->pixel_buffer = new uint8_t[4 * resource->size.GetArea()];
}
}
void ResourceProvider::ReleasePixelBuffer(ResourceId id) {
Resource* resource = GetResource(id);
DCHECK(!resource->external);
DCHECK_EQ(resource->exported_count, 0);
DCHECK(!resource->image_id);
// The pixel buffer can be released while there is a pending "set pixels"
// if completion has been forced. Any shared memory associated with this
// pixel buffer will not be freed until the waitAsyncTexImage2DCHROMIUM
// command has been processed on the service side. It is also safe to
// reuse any query id associated with this resource before they complete
// as each new query has a unique submit count.
if (resource->pending_set_pixels) {
DCHECK(resource->set_pixels_completion_forced);
resource->pending_set_pixels = false;
UnlockForWrite(id);
}
if (resource->type == GLTexture) {
if (!resource->gl_pixel_buffer_id)
return;
GLES2Interface* gl = ContextGL();
DCHECK(gl);
gl->BindBuffer(GL_PIXEL_UNPACK_TRANSFER_BUFFER_CHROMIUM,
resource->gl_pixel_buffer_id);
gl->BufferData(
GL_PIXEL_UNPACK_TRANSFER_BUFFER_CHROMIUM, 0, NULL, GL_DYNAMIC_DRAW);
gl->BindBuffer(GL_PIXEL_UNPACK_TRANSFER_BUFFER_CHROMIUM, 0);
}
if (resource->pixels) {
if (!resource->pixel_buffer)
return;
delete[] resource->pixel_buffer;
resource->pixel_buffer = NULL;
}
}
uint8_t* ResourceProvider::MapPixelBuffer(ResourceId id) {
Resource* resource = GetResource(id);
DCHECK(!resource->external);
DCHECK_EQ(resource->exported_count, 0);
DCHECK(!resource->image_id);
if (resource->type == GLTexture) {
GLES2Interface* gl = ContextGL();
DCHECK(gl);
DCHECK(resource->gl_pixel_buffer_id);
gl->BindBuffer(GL_PIXEL_UNPACK_TRANSFER_BUFFER_CHROMIUM,
resource->gl_pixel_buffer_id);
uint8_t* image = static_cast<uint8_t*>(gl->MapBufferCHROMIUM(
GL_PIXEL_UNPACK_TRANSFER_BUFFER_CHROMIUM, GL_WRITE_ONLY));
gl->BindBuffer(GL_PIXEL_UNPACK_TRANSFER_BUFFER_CHROMIUM, 0);
// Buffer is required to be 4-byte aligned.
CHECK(!(reinterpret_cast<intptr_t>(image) & 3));
return image;
}
if (resource->pixels)
return resource->pixel_buffer;
return NULL;
}
void ResourceProvider::UnmapPixelBuffer(ResourceId id) {
Resource* resource = GetResource(id);
DCHECK(!resource->external);
DCHECK_EQ(resource->exported_count, 0);
DCHECK(!resource->image_id);
if (resource->type == GLTexture) {
GLES2Interface* gl = ContextGL();
DCHECK(gl);
DCHECK(resource->gl_pixel_buffer_id);
gl->BindBuffer(GL_PIXEL_UNPACK_TRANSFER_BUFFER_CHROMIUM,
resource->gl_pixel_buffer_id);
gl->UnmapBufferCHROMIUM(GL_PIXEL_UNPACK_TRANSFER_BUFFER_CHROMIUM);
gl->BindBuffer(GL_PIXEL_UNPACK_TRANSFER_BUFFER_CHROMIUM, 0);
}
}
GLenum ResourceProvider::BindForSampling(
ResourceProvider::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 || resource->set_pixels_completion_forced);
ScopedSetActiveTexture scoped_active_tex(gl, unit);
GLenum target = resource->target;
GLC(gl, gl->BindTexture(target, resource->gl_id));
if (filter != resource->filter) {
GLC(gl, gl->TexParameteri(target, GL_TEXTURE_MIN_FILTER, filter));
GLC(gl, gl->TexParameteri(target, GL_TEXTURE_MAG_FILTER, filter));
resource->filter = filter;
}
if (resource->image_id && resource->dirty_image) {
// Release image currently bound to texture.
if (resource->bound_image_id)
gl->ReleaseTexImage2DCHROMIUM(target, resource->bound_image_id);
gl->BindTexImage2DCHROMIUM(target, resource->image_id);
resource->bound_image_id = resource->image_id;
resource->dirty_image = false;
}
return target;
}
void ResourceProvider::BeginSetPixels(ResourceId id) {
Resource* resource = GetResource(id);
DCHECK(!resource->pending_set_pixels);
LazyCreate(resource);
DCHECK(resource->gl_id || resource->allocated);
DCHECK(ReadLockFenceHasPassed(resource));
DCHECK(!resource->image_id);
bool allocate = !resource->allocated;
resource->allocated = true;
LockForWrite(id);
if (resource->gl_id) {
GLES2Interface* gl = ContextGL();
DCHECK(gl);
DCHECK(resource->gl_pixel_buffer_id);
DCHECK_EQ(resource->target, static_cast<GLenum>(GL_TEXTURE_2D));
gl->BindTexture(GL_TEXTURE_2D, resource->gl_id);
gl->BindBuffer(GL_PIXEL_UNPACK_TRANSFER_BUFFER_CHROMIUM,
resource->gl_pixel_buffer_id);
if (!resource->gl_upload_query_id)
gl->GenQueriesEXT(1, &resource->gl_upload_query_id);
gl->BeginQueryEXT(GL_ASYNC_PIXEL_UNPACK_COMPLETED_CHROMIUM,
resource->gl_upload_query_id);
if (allocate) {
gl->AsyncTexImage2DCHROMIUM(GL_TEXTURE_2D,
0, /* level */
GLInternalFormat(resource->format),
resource->size.width(),
resource->size.height(),
0, /* border */
GLDataFormat(resource->format),
GLDataType(resource->format),
NULL);
} else {
gl->AsyncTexSubImage2DCHROMIUM(GL_TEXTURE_2D,
0, /* level */
0, /* x */
0, /* y */
resource->size.width(),
resource->size.height(),
GLDataFormat(resource->format),
GLDataType(resource->format),
NULL);
}
gl->EndQueryEXT(GL_ASYNC_PIXEL_UNPACK_COMPLETED_CHROMIUM);
gl->BindBuffer(GL_PIXEL_UNPACK_TRANSFER_BUFFER_CHROMIUM, 0);
}
if (resource->pixels) {
DCHECK(!resource->mailbox.IsValid());
DCHECK(resource->pixel_buffer);
DCHECK_EQ(RGBA_8888, resource->format);
std::swap(resource->pixels, resource->pixel_buffer);
delete[] resource->pixel_buffer;
resource->pixel_buffer = NULL;
}
resource->pending_set_pixels = true;
resource->set_pixels_completion_forced = false;
}
void ResourceProvider::ForceSetPixelsToComplete(ResourceId id) {
Resource* resource = GetResource(id);
DCHECK(resource->locked_for_write);
DCHECK(resource->pending_set_pixels);
DCHECK(!resource->set_pixels_completion_forced);
if (resource->gl_id) {
GLES2Interface* gl = ContextGL();
GLC(gl, gl->BindTexture(GL_TEXTURE_2D, resource->gl_id));
GLC(gl, gl->WaitAsyncTexImage2DCHROMIUM(GL_TEXTURE_2D));
GLC(gl, gl->BindTexture(GL_TEXTURE_2D, 0));
}
resource->set_pixels_completion_forced = true;
}
bool ResourceProvider::DidSetPixelsComplete(ResourceId id) {
Resource* resource = GetResource(id);
DCHECK(resource->locked_for_write);
DCHECK(resource->pending_set_pixels);
if (resource->gl_id) {
GLES2Interface* gl = ContextGL();
DCHECK(gl);
DCHECK(resource->gl_upload_query_id);
GLuint complete = 1;
gl->GetQueryObjectuivEXT(
resource->gl_upload_query_id, GL_QUERY_RESULT_AVAILABLE_EXT, &complete);
if (!complete)
return false;
}
resource->pending_set_pixels = false;
UnlockForWrite(id);
return true;
}
void ResourceProvider::CreateForTesting(ResourceId id) {
LazyCreate(GetResource(id));
}
GLenum ResourceProvider::TargetForTesting(ResourceId id) {
Resource* resource = GetResource(id);
return resource->target;
}
void ResourceProvider::LazyCreate(Resource* resource) {
if (resource->type != GLTexture || resource->gl_id != 0)
return;
// Early out for resources that don't require texture creation.
if (resource->texture_pool == 0)
return;
resource->gl_id = texture_id_allocator_->NextId();
GLES2Interface* gl = ContextGL();
DCHECK(gl);
// Create and set texture properties. Allocation is delayed until needed.
GLC(gl, gl->BindTexture(resource->target, resource->gl_id));
GLC(gl,
gl->TexParameteri(resource->target, GL_TEXTURE_MIN_FILTER, GL_LINEAR));
GLC(gl,
gl->TexParameteri(resource->target, GL_TEXTURE_MAG_FILTER, GL_LINEAR));
GLC(gl,
gl->TexParameteri(
resource->target, GL_TEXTURE_WRAP_S, resource->wrap_mode));
GLC(gl,
gl->TexParameteri(
resource->target, GL_TEXTURE_WRAP_T, resource->wrap_mode));
GLC(gl,
gl->TexParameteri(
resource->target, GL_TEXTURE_POOL_CHROMIUM, resource->texture_pool));
if (use_texture_usage_hint_ && resource->hint == TextureUsageFramebuffer) {
GLC(gl,
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);
LazyCreate(resource);
DCHECK(resource->gl_id || resource->allocated);
if (resource->allocated || !resource->gl_id)
return;
resource->allocated = true;
GLES2Interface* gl = ContextGL();
gfx::Size& size = resource->size;
DCHECK_EQ(resource->target, static_cast<GLenum>(GL_TEXTURE_2D));
ResourceFormat format = resource->format;
GLC(gl, gl->BindTexture(GL_TEXTURE_2D, resource->gl_id));
if (use_texture_storage_ext_ && IsFormatSupportedForStorage(format) &&
resource->hint != TextureUsageFramebuffer) {
GLenum storage_format = TextureToStorageFormat(format);
GLC(gl,
gl->TexStorage2DEXT(
GL_TEXTURE_2D, 1, storage_format, size.width(), size.height()));
} else {
// ETC1 does not support preallocation.
if (format != ETC1) {
GLC(gl,
gl->TexImage2D(GL_TEXTURE_2D,
0,
GLInternalFormat(format),
size.width(),
size.height(),
0,
GLDataFormat(format),
GLDataType(format),
NULL));
}
}
}
void ResourceProvider::EnableReadLockFences(ResourceProvider::ResourceId id,
bool enable) {
Resource* resource = GetResource(id);
resource->enable_read_lock_fences = enable;
}
void ResourceProvider::AcquireImage(ResourceId id) {
Resource* resource = GetResource(id);
DCHECK(!resource->external);
DCHECK_EQ(resource->exported_count, 0);
if (resource->type != GLTexture)
return;
if (resource->image_id)
return;
resource->allocated = true;
GLES2Interface* gl = ContextGL();
DCHECK(gl);
resource->image_id =
gl->CreateImageCHROMIUM(resource->size.width(),
resource->size.height(),
TextureToStorageFormat(resource->format));
DCHECK(resource->image_id);
}
void ResourceProvider::ReleaseImage(ResourceId id) {
Resource* resource = GetResource(id);
DCHECK(!resource->external);
DCHECK_EQ(resource->exported_count, 0);
if (!resource->image_id)
return;
GLES2Interface* gl = ContextGL();
DCHECK(gl);
gl->DestroyImageCHROMIUM(resource->image_id);
resource->image_id = 0;
resource->bound_image_id = 0;
resource->dirty_image = false;
resource->allocated = false;
}
uint8_t* ResourceProvider::MapImage(ResourceId id) {
Resource* resource = GetResource(id);
DCHECK(ReadLockFenceHasPassed(resource));
DCHECK(!resource->external);
DCHECK_EQ(resource->exported_count, 0);
if (resource->image_id) {
GLES2Interface* gl = ContextGL();
DCHECK(gl);
return static_cast<uint8_t*>(
gl->MapImageCHROMIUM(resource->image_id, GL_READ_WRITE));
}
if (resource->pixels)
return resource->pixels;
return NULL;
}
void ResourceProvider::UnmapImage(ResourceId id) {
Resource* resource = GetResource(id);
DCHECK(!resource->external);
DCHECK_EQ(resource->exported_count, 0);
if (resource->image_id) {
GLES2Interface* gl = ContextGL();
DCHECK(gl);
gl->UnmapImageCHROMIUM(resource->image_id);
resource->dirty_image = true;
}
}
int ResourceProvider::GetImageStride(ResourceId id) {
Resource* resource = GetResource(id);
DCHECK(!resource->external);
DCHECK_EQ(resource->exported_count, 0);
int stride = 0;
if (resource->image_id) {
GLES2Interface* gl = ContextGL();
DCHECK(gl);
gl->GetImageParameterivCHROMIUM(
resource->image_id, GL_IMAGE_ROWBYTES_CHROMIUM, &stride);
}
return stride;
}
base::SharedMemory* ResourceProvider::GetSharedMemory(ResourceId id) {
Resource* resource = GetResource(id);
DCHECK(!resource->external);
DCHECK_EQ(resource->exported_count, 0);
if (!resource->shared_bitmap)
return NULL;
return resource->shared_bitmap->memory();
}
GLint ResourceProvider::GetActiveTextureUnit(GLES2Interface* gl) {
GLint active_unit = 0;
gl->GetIntegerv(GL_ACTIVE_TEXTURE, &active_unit);
return active_unit;
}
GLES2Interface* ResourceProvider::ContextGL() const {
ContextProvider* context_provider = output_surface_->context_provider();
return context_provider ? context_provider->ContextGL() : NULL;
}
} // namespace cc