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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "gpu/command_buffer/service/shared_image/skia_gl_image_representation.h"
#include "base/check_op.h"
#include "base/memory/ptr_util.h"
#include "components/viz/common/resources/shared_image_format_utils.h"
#include "gpu/command_buffer/service/shared_context_state.h"
#include "gpu/command_buffer/service/shared_image/shared_image_format_service_utils.h"
#include "gpu/command_buffer/service/skia_utils.h"
#include "gpu/command_buffer/service/texture_manager.h"
#include "third_party/skia/include/core/SkColorSpace.h"
#include "third_party/skia/include/gpu/ganesh/GrBackendSurface.h"
#include "third_party/skia/include/gpu/ganesh/GrContextThreadSafeProxy.h"
#include "third_party/skia/include/gpu/ganesh/SkSurfaceGanesh.h"
#include "third_party/skia/include/private/chromium/GrPromiseImageTexture.h"
#include "ui/gl/gl_bindings.h"
namespace gpu {
std::ostream& operator<<(std::ostream& os, RepresentationAccessMode mode) {
switch (mode) {
case RepresentationAccessMode::kNone:
os << "kNone";
break;
case RepresentationAccessMode::kRead:
os << "kRead";
break;
case RepresentationAccessMode::kWrite:
os << "kWrite";
break;
}
return os;
}
// static method.
std::unique_ptr<SkiaGLImageRepresentation> SkiaGLImageRepresentation::Create(
std::unique_ptr<GLTextureImageRepresentationBase> gl_representation,
scoped_refptr<SharedContextState> context_state,
SharedImageManager* manager,
SharedImageBacking* backing,
MemoryTypeTracker* tracker) {
std::vector<sk_sp<GrPromiseImageTexture>> promise_textures;
auto format = backing->format();
GLFormatCaps caps = context_state->GetGLFormatCaps();
if (format.is_single_plane() || format.PrefersExternalSampler()) {
GrBackendTexture backend_texture;
GLFormatDesc gl_format_desc =
format.PrefersExternalSampler()
? caps.ToGLFormatDescExternalSampler(format)
: caps.ToGLFormatDesc(format, /*plane_index=*/0);
if (!GetGrBackendTexture(
context_state->feature_info(),
gl_representation->GetTextureBase()->target(), backing->size(),
gl_representation->GetTextureBase()->service_id(),
gl_format_desc.storage_internal_format,
context_state->gr_context()->threadSafeProxy(), &backend_texture)) {
return nullptr;
}
auto promise_texture = GrPromiseImageTexture::Make(backend_texture);
if (!promise_texture)
return nullptr;
promise_textures.push_back(std::move(promise_texture));
} else {
for (int plane_index = 0; plane_index < format.NumberOfPlanes();
plane_index++) {
GrBackendTexture backend_texture;
// Use the format and size per plane for multiplanar formats.
GLFormatDesc format_desc = caps.ToGLFormatDesc(format, plane_index);
gfx::Size plane_size = format.GetPlaneSize(plane_index, backing->size());
if (!GetGrBackendTexture(
context_state->feature_info(),
gl_representation->GetTextureBase(plane_index)->target(),
plane_size,
gl_representation->GetTextureBase(plane_index)->service_id(),
format_desc.storage_internal_format,
context_state->gr_context()->threadSafeProxy(),
&backend_texture)) {
return nullptr;
}
auto promise_texture = GrPromiseImageTexture::Make(backend_texture);
if (!promise_texture)
return nullptr;
promise_textures.push_back(std::move(promise_texture));
}
}
return base::WrapUnique(new SkiaGLImageRepresentation(
std::move(gl_representation), std::move(promise_textures),
std::move(context_state), manager, backing, tracker));
}
SkiaGLImageRepresentation::SkiaGLImageRepresentation(
std::unique_ptr<GLTextureImageRepresentationBase> gl_representation,
std::vector<sk_sp<GrPromiseImageTexture>> promise_textures,
scoped_refptr<SharedContextState> context_state,
SharedImageManager* manager,
SharedImageBacking* backing,
MemoryTypeTracker* tracker)
: SkiaGaneshImageRepresentation(context_state->gr_context(),
manager,
backing,
tracker),
gl_representation_(std::move(gl_representation)),
promise_textures_(std::move(promise_textures)),
context_state_(std::move(context_state)) {
DCHECK(gl_representation_);
#if DCHECK_IS_ON()
context_ = gl::GLContext::GetCurrent();
#endif
}
SkiaGLImageRepresentation::~SkiaGLImageRepresentation() {
DCHECK_EQ(RepresentationAccessMode::kNone, mode_);
ClearCachedSurfaces();
DCHECK_EQ(!has_context(), context_state_->context_lost());
if (!has_context())
gl_representation_->OnContextLost();
}
std::vector<sk_sp<SkSurface>> SkiaGLImageRepresentation::BeginWriteAccess(
int final_msaa_count,
const SkSurfaceProps& surface_props,
const gfx::Rect& update_rect,
std::vector<GrBackendSemaphore>* begin_semaphores,
std::vector<GrBackendSemaphore>* end_semaphores,
std::unique_ptr<skgpu::MutableTextureState>* end_state) {
DCHECK_EQ(mode_, RepresentationAccessMode::kNone);
CheckContext();
if (!gl_representation_->BeginAccess(
GL_SHARED_IMAGE_ACCESS_MODE_READWRITE_CHROMIUM)) {
return {};
}
if (!surfaces_.empty()) {
mode_ = RepresentationAccessMode::kWrite;
return surfaces_;
}
DCHECK_EQ(static_cast<int>(promise_textures_.size()),
format().NumberOfPlanes());
std::vector<sk_sp<SkSurface>> surfaces;
for (int plane_index = 0; plane_index < format().NumberOfPlanes();
plane_index++) {
// Use the color type per plane for multiplanar formats.
SkColorType sk_color_type =
viz::ToClosestSkColorType(format(), plane_index);
auto surface = SkSurfaces::WrapBackendTexture(
context_state_->gr_context(),
promise_textures_[plane_index]->backendTexture(), surface_origin(),
final_msaa_count, sk_color_type,
backing()->color_space().ToSkColorSpace(), &surface_props);
if (!surface)
return {};
surfaces.push_back(surface);
}
mode_ = RepresentationAccessMode::kWrite;
surfaces_ = surfaces;
return surfaces;
}
std::vector<sk_sp<GrPromiseImageTexture>>
SkiaGLImageRepresentation::BeginWriteAccess(
std::vector<GrBackendSemaphore>* begin_semaphores,
std::vector<GrBackendSemaphore>* end_semaphores,
std::unique_ptr<skgpu::MutableTextureState>* end_state) {
DCHECK_EQ(mode_, RepresentationAccessMode::kNone);
CheckContext();
if (!gl_representation_->BeginAccess(
GL_SHARED_IMAGE_ACCESS_MODE_READWRITE_CHROMIUM)) {
return {};
}
mode_ = RepresentationAccessMode::kWrite;
return promise_textures_;
}
void SkiaGLImageRepresentation::EndWriteAccess() {
DCHECK_EQ(mode_, RepresentationAccessMode::kWrite);
for (auto& surface : surfaces_)
DCHECK(surface->unique());
gl_representation_->EndAccess();
mode_ = RepresentationAccessMode::kNone;
}
std::vector<sk_sp<GrPromiseImageTexture>>
SkiaGLImageRepresentation::BeginReadAccess(
std::vector<GrBackendSemaphore>* begin_semaphores,
std::vector<GrBackendSemaphore>* end_semaphores,
std::unique_ptr<skgpu::MutableTextureState>* end_state) {
DCHECK_EQ(mode_, RepresentationAccessMode::kNone);
CheckContext();
if (!gl_representation_->BeginAccess(
GL_SHARED_IMAGE_ACCESS_MODE_READ_CHROMIUM)) {
return {};
}
mode_ = RepresentationAccessMode::kRead;
return promise_textures_;
}
void SkiaGLImageRepresentation::EndReadAccess() {
DCHECK_EQ(mode_, RepresentationAccessMode::kRead);
CheckContext();
gl_representation_->EndAccess();
mode_ = RepresentationAccessMode::kNone;
}
void SkiaGLImageRepresentation::ClearCachedSurfaces() {
surfaces_.clear();
}
void SkiaGLImageRepresentation::CheckContext() {
#if DCHECK_IS_ON()
DCHECK_EQ(gl::GLContext::GetCurrent(), context_);
#endif
}
bool SkiaGLImageRepresentation::SupportsMultipleConcurrentReadAccess() {
return gl_representation_->SupportsMultipleConcurrentReadAccess();
}
} // namespace gpu
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