| /* |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #ifndef AVUTIL_HWCONTEXT_VULKAN_H |
| #define AVUTIL_HWCONTEXT_VULKAN_H |
| |
| #include <vulkan/vulkan.h> |
| |
| /** |
| * @file |
| * API-specific header for AV_HWDEVICE_TYPE_VULKAN. |
| * |
| * For user-allocated pools, AVHWFramesContext.pool must return AVBufferRefs |
| * with the data pointer set to an AVVkFrame. |
| */ |
| |
| /** |
| * Main Vulkan context, allocated as AVHWDeviceContext.hwctx. |
| * All of these can be set before init to change what the context uses |
| */ |
| typedef struct AVVulkanDeviceContext { |
| /** |
| * Custom memory allocator, else NULL |
| */ |
| const VkAllocationCallbacks *alloc; |
| /** |
| * Instance |
| */ |
| VkInstance inst; |
| /** |
| * Physical device |
| */ |
| VkPhysicalDevice phys_dev; |
| /** |
| * Active device |
| */ |
| VkDevice act_dev; |
| /** |
| * Queue family index for graphics |
| * @note av_hwdevice_create() will set all 3 queue indices if unset |
| * If there is no dedicated queue for compute or transfer operations, |
| * they will be set to the graphics queue index which can handle both. |
| */ |
| int queue_family_index; |
| /** |
| * Queue family index for transfer ops only |
| */ |
| int queue_family_tx_index; |
| /** |
| * Queue family index for compute ops |
| */ |
| int queue_family_comp_index; |
| } AVVulkanDeviceContext; |
| |
| /** |
| * Allocated as AVHWFramesContext.hwctx, used to set pool-specific options |
| */ |
| typedef struct AVVulkanFramesContext { |
| /** |
| * Controls the tiling of output frames. |
| */ |
| VkImageTiling tiling; |
| /** |
| * Defines extra usage of output frames. This is bitwise OR'd with the |
| * standard usage flags (SAMPLED, STORAGE, TRANSFER_SRC and TRANSFER_DST). |
| */ |
| VkImageUsageFlagBits usage; |
| /** |
| * Extension data for image creation. By default, if the extension is |
| * available, this will be chained to a VkImageFormatListCreateInfoKHR. |
| */ |
| void *create_pnext; |
| /** |
| * Extension data for memory allocation. Must have as many entries as |
| * the number of planes of the sw_format. |
| * This will be chained to VkExportMemoryAllocateInfo, which is used |
| * to make all pool images exportable to other APIs. |
| */ |
| void *alloc_pnext[AV_NUM_DATA_POINTERS]; |
| } AVVulkanFramesContext; |
| |
| /* |
| * Frame structure, the VkFormat of the image will always match |
| * the pool's sw_format. |
| * All frames, imported or allocated, will be created with the |
| * VK_IMAGE_CREATE_ALIAS_BIT flag set, so the memory may be aliased if needed. |
| * |
| * @note the size of this structure is not part of the ABI, to allocate |
| * you must use @av_vk_frame_alloc(). |
| */ |
| typedef struct AVVkFrame { |
| /** |
| * Vulkan images to which the memory is bound to. |
| */ |
| VkImage img[AV_NUM_DATA_POINTERS]; |
| |
| /** |
| * Same tiling must be used for all images. |
| */ |
| VkImageTiling tiling; |
| |
| /** |
| * Memory backing the images. Could be less than the amount of images |
| * if importing from a DRM or VAAPI frame. |
| */ |
| VkDeviceMemory mem[AV_NUM_DATA_POINTERS]; |
| size_t size[AV_NUM_DATA_POINTERS]; |
| |
| /** |
| * OR'd flags for all memory allocated |
| */ |
| VkMemoryPropertyFlagBits flags; |
| |
| /** |
| * Updated after every barrier |
| */ |
| VkAccessFlagBits access[AV_NUM_DATA_POINTERS]; |
| VkImageLayout layout[AV_NUM_DATA_POINTERS]; |
| |
| /** |
| * Per-frame semaphore. Must not be freed manually. Must be waited on |
| * and signalled at every queue submission. |
| */ |
| VkSemaphore sem; |
| |
| /** |
| * Internal data. |
| */ |
| struct AVVkFrameInternal *internal; |
| } AVVkFrame; |
| |
| /** |
| * Allocates a single AVVkFrame and initializes everything as 0. |
| * @note Must be freed via av_free() |
| */ |
| AVVkFrame *av_vk_frame_alloc(void); |
| |
| /** |
| * Returns the format of each image up to the number of planes for a given sw_format. |
| */ |
| const VkFormat *av_vkfmt_from_pixfmt(enum AVPixelFormat p); |
| |
| #endif /* AVUTIL_HWCONTEXT_VULKAN_H */ |