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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_VIZ_COMMON_GPU_VULKAN_CONTEXT_PROVIDER_H_
#define COMPONENTS_VIZ_COMMON_GPU_VULKAN_CONTEXT_PROVIDER_H_
#include <optional>
#include <vector>
#include "base/functional/callback.h"
#include "base/memory/ref_counted.h"
#include "components/viz/common/viz_vulkan_context_provider_export.h"
#include "gpu/vulkan/buildflags.h"
#if BUILDFLAG(ENABLE_VULKAN)
#include <vulkan/vulkan_core.h>
#endif
#if !defined(VK_VERSION_1_1)
// Workaround compiling issue when vulkan is disabled.
typedef void* VkSemaphore;
#endif
struct GrContextOptions;
class GrDirectContext;
class GrVkSecondaryCBDrawContext;
namespace gpu {
class VulkanDeviceQueue;
class VulkanImplementation;
}
namespace viz {
// The VulkanContextProvider groups sharing of vulkan objects synchronously.
class VIZ_VULKAN_CONTEXT_PROVIDER_EXPORT VulkanContextProvider
: public base::RefCountedThreadSafe<VulkanContextProvider> {
public:
virtual bool InitializeGrContext(const GrContextOptions& context_options) = 0;
virtual gpu::VulkanImplementation* GetVulkanImplementation() = 0;
virtual gpu::VulkanDeviceQueue* GetDeviceQueue() = 0;
virtual GrDirectContext* GetGrContext() = 0;
// Get the current SecondaryCBDrawContext for the default render target.
virtual GrVkSecondaryCBDrawContext* GetGrSecondaryCBDrawContext() = 0;
// Enqueue semaphores which will be submitted with GrSecondaryCB to device
// queue for signalling.
virtual void EnqueueSecondaryCBSemaphores(
std::vector<VkSemaphore> semaphores) = 0;
// Enqueue task which will be executed after the GrSecondaryCB and post submit
// semphores are submitted.
virtual void EnqueueSecondaryCBPostSubmitTask(base::OnceClosure closure) = 0;
// Returns a valid limit in MB if there is a memory limit where GPU work
// should be synchronized with the CPU in order to free previously released
// memory immediately. In other words, the CPU will wait for GPU work to
// complete before proceeding when the current amount of allocated memory
// exceeds this limit.
virtual std::optional<uint32_t> GetSyncCpuMemoryLimit() const = 0;
protected:
friend class base::RefCountedThreadSafe<VulkanContextProvider>;
virtual ~VulkanContextProvider() = default;
};
} // namespace viz
#endif // COMPONENTS_VIZ_COMMON_GPU_VULKAN_CONTEXT_PROVIDER_H_
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