| // Copyright 2018 The Amber Authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef SRC_VULKAN_RESOURCE_H_ |
| #define SRC_VULKAN_RESOURCE_H_ |
| |
| #include <memory> |
| |
| #include "amber/result.h" |
| #include "vulkan/vulkan.h" |
| |
| namespace amber { |
| namespace vulkan { |
| |
| class Resource { |
| public: |
| virtual ~Resource(); |
| |
| virtual VkDeviceMemory GetHostAccessMemory() const { |
| return host_accessible_memory_; |
| } |
| |
| virtual Result CopyToHost(VkCommandBuffer command) = 0; |
| |
| virtual void Shutdown(); |
| |
| void* HostAccessibleMemoryPtr() const { return memory_ptr_; } |
| |
| size_t GetSizeInBytes() const { return size_in_bytes_; } |
| |
| protected: |
| Resource(VkDevice device, |
| size_t size, |
| const VkPhysicalDeviceMemoryProperties& properties); |
| Result Initialize(); |
| Result CreateVkBuffer(VkBuffer* buffer, VkBufferUsageFlags usage); |
| |
| VkDevice GetDevice() const { return device_; } |
| VkBuffer GetHostAccessibleBuffer() const { return host_accessible_buffer_; } |
| |
| struct AllocateResult { |
| Result r; |
| uint32_t memory_type_index; |
| }; |
| |
| AllocateResult AllocateAndBindMemoryToVkBuffer(VkBuffer buffer, |
| VkDeviceMemory* memory, |
| VkMemoryPropertyFlags flags, |
| bool force_flags); |
| AllocateResult AllocateAndBindMemoryToVkImage(VkImage image, |
| VkDeviceMemory* memory, |
| VkMemoryPropertyFlags flags, |
| bool force_flags); |
| |
| bool IsMemoryHostAccessible(uint32_t memory_type_index) { |
| return (physical_memory_properties_.memoryTypes[memory_type_index] |
| .propertyFlags & |
| VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) == |
| VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT; |
| } |
| |
| bool IsMemoryHostCoherent(uint32_t memory_type_index) { |
| return (physical_memory_properties_.memoryTypes[memory_type_index] |
| .propertyFlags & |
| VK_MEMORY_PROPERTY_HOST_COHERENT_BIT) == |
| VK_MEMORY_PROPERTY_HOST_COHERENT_BIT; |
| } |
| |
| Result MapMemory(VkDeviceMemory memory); |
| void UnMapMemory(VkDeviceMemory memory); |
| |
| // Make all memory operations before calling this method effective i.e., |
| // prevent hazards caused by out-of-order execution. |
| void MemoryBarrier(VkCommandBuffer command); |
| |
| private: |
| uint32_t ChooseMemory(uint32_t memory_type_bits, |
| VkMemoryPropertyFlags flags, |
| bool force_flags); |
| Result AllocateMemory(VkDeviceMemory* memory, |
| VkDeviceSize size, |
| uint32_t memory_type_index); |
| |
| Result BindMemoryToVkBuffer(VkBuffer buffer, VkDeviceMemory memory); |
| const VkMemoryRequirements GetVkBufferMemoryRequirements( |
| VkBuffer buffer) const; |
| |
| Result BindMemoryToVkImage(VkImage image, VkDeviceMemory memory); |
| const VkMemoryRequirements GetVkImageMemoryRequirements(VkImage image) const; |
| |
| VkDevice device_ = VK_NULL_HANDLE; |
| size_t size_in_bytes_ = 0; |
| VkPhysicalDeviceMemoryProperties physical_memory_properties_; |
| |
| VkBuffer host_accessible_buffer_ = VK_NULL_HANDLE; |
| VkDeviceMemory host_accessible_memory_ = VK_NULL_HANDLE; |
| void* memory_ptr_ = nullptr; |
| }; |
| |
| } // namespace vulkan |
| } // namespace amber |
| |
| #endif // SRC_VULKAN_RESOURCE_H_ |