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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/external_vk_image_gl_representation.h"
#include <vector>
#include "base/logging.h"
#include "base/memory/raw_ptr.h"
#include "gpu/command_buffer/service/texture_manager.h"
#include "gpu/vulkan/vulkan_util.h"
#include "ui/gl/gl_bindings.h"
namespace gpu {
namespace {
template <typename T>
std::vector<GLuint> GetTextureIds(const std::vector<T>& textures) {
std::vector<GLuint> texture_ids;
texture_ids.reserve(textures.size());
for (const T& texture : textures) {
texture_ids.push_back(texture->service_id());
}
return texture_ids;
}
} // namespace
// static
void ExternalVkImageGLRepresentationShared::AcquireTexture(
ExternalSemaphore* semaphore,
const std::vector<GLuint>& texture_ids,
const std::vector<GLenum>& src_layouts) {
DCHECK_EQ(texture_ids.size(), src_layouts.size());
GLuint gl_semaphore = semaphore->GetGLSemaphore();
if (gl_semaphore) {
auto* api = gl::g_current_gl_context;
api->glWaitSemaphoreEXTFn(gl_semaphore, 0, nullptr, texture_ids.size(),
texture_ids.data(), src_layouts.data());
}
}
// static
ExternalSemaphore ExternalVkImageGLRepresentationShared::ReleaseTexture(
ExternalSemaphorePool* pool,
const std::vector<GLuint>& texture_ids,
const std::vector<GLenum>& dst_layouts) {
DCHECK_EQ(texture_ids.size(), dst_layouts.size());
ExternalSemaphore semaphore = pool->GetOrCreateSemaphore();
if (!semaphore) {
// TODO(crbug.com/41442163): We should be able to handle this failure more
// gracefully rather than shutting down the whole process.
DLOG(ERROR) << "Unable to create an ExternalSemaphore in "
<< "ExternalVkImageGLRepresentation for synchronization with "
<< "Vulkan";
return {};
}
GLuint gl_semaphore = semaphore.GetGLSemaphore();
if (!gl_semaphore) {
// TODO(crbug.com/41442163): We should be able to semaphore_handle this
// failure more gracefully rather than shutting down the whole process.
DLOG(ERROR) << "Unable to export VkSemaphore into GL in "
<< "ExternalVkImageGLRepresentation for synchronization with "
<< "Vulkan";
return {};
}
auto* api = gl::g_current_gl_context;
api->glSignalSemaphoreEXTFn(gl_semaphore, 0, nullptr, texture_ids.size(),
texture_ids.data(), dst_layouts.data());
// Base on the spec, the glSignalSemaphoreEXT() call just inserts signal
// semaphore command in the gl context. It may or may not flush the context
// which depends on the implementation. So to make it safe, we always call
// glFlush() here. If the implementation does flush in the
// glSignalSemaphoreEXT() call, the glFlush() call should be a noop.
api->glFlushFn();
return semaphore;
}
ExternalVkImageGLRepresentationShared::ExternalVkImageGLRepresentationShared(
SharedImageBacking* backing,
std::vector<GLuint> texture_service_ids)
: backing_(static_cast<ExternalVkImageBacking*>(backing)),
texture_service_ids_(std::move(texture_service_ids)) {}
ExternalVkImageGLRepresentationShared::
~ExternalVkImageGLRepresentationShared() = default;
bool ExternalVkImageGLRepresentationShared::BeginAccess(GLenum mode) {
// There should not be multiple accesses in progress on the same
// representation.
if (current_access_mode_) {
DLOG(ERROR) << "BeginAccess called on ExternalVkImageGLRepresentation"
<< " before the previous access ended.";
return false;
}
DCHECK(mode == GL_SHARED_IMAGE_ACCESS_MODE_READ_CHROMIUM ||
mode == GL_SHARED_IMAGE_ACCESS_MODE_READWRITE_CHROMIUM);
const bool readonly =
(mode != GL_SHARED_IMAGE_ACCESS_MODE_READWRITE_CHROMIUM);
DCHECK(begin_access_semaphores_.empty());
if (!backing_impl()->BeginAccess(readonly, &begin_access_semaphores_,
/*is_gl=*/true)) {
return false;
}
for (auto& external_semaphore : begin_access_semaphores_) {
auto image_layouts = backing_impl()->GetVkImageLayoutsForGL();
AcquireTexture(&external_semaphore, texture_service_ids_, image_layouts);
}
current_access_mode_ = mode;
return true;
}
void ExternalVkImageGLRepresentationShared::EndAccess() {
if (!current_access_mode_) {
// TODO(crbug.com/41442163): We should be able to handle this failure more
// gracefully rather than shutting down the whole process.
DLOG(ERROR) << "EndAccess called on ExternalVkImageGLRepresentation before "
<< "BeginAccess";
return;
}
DCHECK(current_access_mode_ == GL_SHARED_IMAGE_ACCESS_MODE_READ_CHROMIUM ||
current_access_mode_ ==
GL_SHARED_IMAGE_ACCESS_MODE_READWRITE_CHROMIUM);
const bool readonly =
(current_access_mode_ != GL_SHARED_IMAGE_ACCESS_MODE_READWRITE_CHROMIUM);
current_access_mode_ = 0;
ExternalSemaphore external_semaphore;
if (backing_impl()->need_synchronization() &&
backing_impl()->gl_reads_in_progress() <= 1) {
DCHECK(readonly == !!backing_impl()->gl_reads_in_progress());
auto image_layouts = backing_impl()->GetVkImageLayoutsForGL();
external_semaphore =
ReleaseTexture(backing_impl()->external_semaphore_pool(),
texture_service_ids_, image_layouts);
if (!external_semaphore) {
backing_impl()->context_state()->MarkContextLost();
return;
}
}
backing_impl()->EndAccess(readonly, std::move(external_semaphore),
/*is_gl=*/true);
// We have done with |begin_access_semaphores_|. They should have been waited.
// So add them to pending semaphores for reusing or relaeasing.
backing_impl()->AddSemaphoresToPendingListOrRelease(
std::move(begin_access_semaphores_));
begin_access_semaphores_.clear();
}
ExternalVkImageGLRepresentation::ExternalVkImageGLRepresentation(
SharedImageManager* manager,
SharedImageBacking* backing,
MemoryTypeTracker* tracker,
std::vector<raw_ptr<gles2::Texture, VectorExperimental>> textures)
: GLTextureImageRepresentation(manager, backing, tracker),
textures_(std::move(textures)),
representation_shared_(backing, GetTextureIds(textures_)) {
DCHECK_EQ(textures_.size(), NumPlanesExpected());
}
ExternalVkImageGLRepresentation::~ExternalVkImageGLRepresentation() = default;
gles2::Texture* ExternalVkImageGLRepresentation::GetTexture(int plane_index) {
return textures_[plane_index];
}
bool ExternalVkImageGLRepresentation::BeginAccess(GLenum mode) {
return representation_shared_.BeginAccess(mode);
}
void ExternalVkImageGLRepresentation::EndAccess() {
representation_shared_.EndAccess();
}
ExternalVkImageGLPassthroughRepresentation::
ExternalVkImageGLPassthroughRepresentation(
SharedImageManager* manager,
SharedImageBacking* backing,
MemoryTypeTracker* tracker,
std::vector<scoped_refptr<gles2::TexturePassthrough>> textures)
: GLTexturePassthroughImageRepresentation(manager, backing, tracker),
textures_(std::move(textures)),
representation_shared_(backing, GetTextureIds(textures_)) {
DCHECK_EQ(textures_.size(), NumPlanesExpected());
}
ExternalVkImageGLPassthroughRepresentation::
~ExternalVkImageGLPassthroughRepresentation() = default;
const scoped_refptr<gles2::TexturePassthrough>&
ExternalVkImageGLPassthroughRepresentation::GetTexturePassthrough(
int plane_index) {
return textures_[plane_index];
}
bool ExternalVkImageGLPassthroughRepresentation::BeginAccess(GLenum mode) {
return representation_shared_.BeginAccess(mode);
}
void ExternalVkImageGLPassthroughRepresentation::EndAccess() {
representation_shared_.EndAccess();
}
} // namespace gpu
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