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https://gitlab.freedesktop.org/mesa/vulkan-wsi-layer.git
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2d4cbd5afa
Decouples the swapchain images and their memory binder/allocator logic into separate classes. This allows us to reduce code duplication across different backends that use the same type of allocation logic and also allows us to make use of RAII to release the resources for swapchain images. The swapchain_base and other swapchain classes have been refactored to handle the new swapchain images. The patch makes the following adjustments: * Introduces a new swapchain_image class that holds all swapchain image resources * Introduces a swapchain image factory class that constructs swapchain images * Introduces a Vulkan image handle class that is responsible for constructing VkImage handles * Introduces a new interface that describes how swapchain backing memory is being allocated * As part of this backing memory interface, introduces device and external (wsialloc) backing memory classes * Introduces a new interface that holds swapchain image data like wl_buffers * Refactors lots of swapchain image parts out of the base swapchain class and moves it into the respective backends to simplify the swapchain classes.
103 lines
No EOL
3.5 KiB
C++
103 lines
No EOL
3.5 KiB
C++
/*
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* Copyright (c) 2025 Arm Limited.
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*
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* SPDX-License-Identifier: MIT
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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/**
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* @file
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*
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* @brief Contains the implementation for external memory management for swapchain images.
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*/
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#include "image_backing_memory_external.hpp"
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using util::MAX_PLANES;
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namespace wsi
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{
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VkResult image_backing_memory_external::allocate()
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{
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allocation_params params = { (m_create_info.flags & VK_IMAGE_CREATE_PROTECTED_BIT) != 0,
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m_create_info.extent,
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&m_create_info.selected_format,
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1,
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m_create_info.explicit_compression,
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false };
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wsialloc_allocate_result alloc_result = { {}, { 0 }, { 0 }, { -1 }, false };
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TRY(m_wsialloc_allocator.allocate(params, &alloc_result));
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m_external_mem.set_strides(alloc_result.average_row_strides);
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m_external_mem.set_buffer_fds(alloc_result.buffer_fds);
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m_external_mem.set_offsets(alloc_result.offsets);
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uint32_t num_planes = util::drm::drm_fourcc_format_get_num_planes(alloc_result.format.fourcc);
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uint32_t num_memory_planes = 0;
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for (uint32_t i = 0; i < num_planes; ++i)
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{
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auto it = std::find(std::begin(alloc_result.buffer_fds) + i + 1, std::end(alloc_result.buffer_fds),
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alloc_result.buffer_fds[i]);
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if (it == std::end(alloc_result.buffer_fds))
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{
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num_memory_planes++;
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}
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}
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assert(alloc_result.is_disjoint == (num_memory_planes > 1));
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m_external_mem.set_num_memories(num_memory_planes);
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m_external_mem.set_format_info(alloc_result.is_disjoint, num_planes);
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m_external_mem.set_memory_handle_type(VK_EXTERNAL_MEMORY_HANDLE_TYPE_DMA_BUF_BIT_EXT);
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return VK_SUCCESS;
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}
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VkResult image_backing_memory_external::import_and_bind(VkImage image)
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{
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TRY_LOG(m_external_mem.import_memory_and_bind_swapchain_image(image),
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"Failed to import memory and bind swapchain image");
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return VK_SUCCESS;
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}
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VkResult image_backing_memory_external::bind(const VkBindImageMemoryInfo *bind_image_mem_info)
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{
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return m_external_mem.bind_swapchain_image_memory(bind_image_mem_info->image);
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}
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external_memory &image_backing_memory_external::get_external_memory()
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{
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return m_external_mem;
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}
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wsialloc_create_info_args image_backing_memory_external::get_image_create_info()
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{
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return m_create_info;
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}
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uint64_t image_backing_memory_external::get_modifier() const
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{
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return m_create_info.selected_format.modifier;
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}
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} |