git.sesse.net Git - ffmpeg/blob - libavutil/hwcontext_vulkan.c

   1 /*
   2  * This file is part of FFmpeg.
   3  *
   4  * FFmpeg is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * FFmpeg is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with FFmpeg; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  17  */
  18
  19 #include "config.h"
  20 #include "pixdesc.h"
  21 #include "avstring.h"
  22 #include "imgutils.h"
  23 #include "hwcontext.h"
  24 #include "hwcontext_internal.h"
  25 #include "hwcontext_vulkan.h"
  26
  27 #if CONFIG_LIBDRM
  28 #include <unistd.h>
  29 #include <xf86drm.h>
  30 #include <drm_fourcc.h>
  31 #include "hwcontext_drm.h"
  32 #if CONFIG_VAAPI
  33 #include <va/va_drmcommon.h>
  34 #include "hwcontext_vaapi.h"
  35 #endif
  36 #endif
  37
  38 #if CONFIG_CUDA
  39 #include "hwcontext_cuda_internal.h"
  40 #include "cuda_check.h"
  41 #define CHECK_CU(x) FF_CUDA_CHECK_DL(cuda_cu, cu, x)
  42 #endif
  43
  44 typedef struct VulkanQueueCtx {
  45     VkFence fence;
  46     VkQueue queue;
  47     int was_synchronous;
  48
  49     /* Buffer dependencies */
  50     AVBufferRef **buf_deps;
  51     int nb_buf_deps;
  52     int buf_deps_alloc_size;
  53 } VulkanQueueCtx;
  54
  55 typedef struct VulkanExecCtx {
  56     VkCommandPool pool;
  57     VkCommandBuffer *bufs;
  58     VulkanQueueCtx *queues;
  59     int nb_queues;
  60     int cur_queue_idx;
  61 } VulkanExecCtx;
  62
  63 typedef struct VulkanDevicePriv {
  64     /* Properties */
  65     VkPhysicalDeviceProperties2 props;
  66     VkPhysicalDeviceMemoryProperties mprops;
  67     VkPhysicalDeviceExternalMemoryHostPropertiesEXT hprops;
  68
  69     /* Queues */
  70     uint32_t qfs[3];
  71     int num_qfs;
  72
  73     /* Debug callback */
  74     VkDebugUtilsMessengerEXT debug_ctx;
  75
  76     /* Extensions */
  77     uint64_t extensions;
  78
  79     /* Settings */
  80     int use_linear_images;
  81
  82     /* Nvidia */
  83     int dev_is_nvidia;
  84 } VulkanDevicePriv;
  85
  86 typedef struct VulkanFramesPriv {
  87     /* Image conversions */
  88     VulkanExecCtx conv_ctx;
  89
  90     /* Image transfers */
  91     VulkanExecCtx upload_ctx;
  92     VulkanExecCtx download_ctx;
  93 } VulkanFramesPriv;
  94
  95 typedef struct AVVkFrameInternal {
  96 #if CONFIG_CUDA
  97     /* Importing external memory into cuda is really expensive so we keep the
  98      * memory imported all the time */
  99     AVBufferRef *cuda_fc_ref; /* Need to keep it around for uninit */
 100     CUexternalMemory ext_mem[AV_NUM_DATA_POINTERS];
 101     CUmipmappedArray cu_mma[AV_NUM_DATA_POINTERS];
 102     CUarray cu_array[AV_NUM_DATA_POINTERS];
 103     CUexternalSemaphore cu_sem[AV_NUM_DATA_POINTERS];
 104 #endif
 105 } AVVkFrameInternal;
 106
 107 #define GET_QUEUE_COUNT(hwctx, graph, comp, tx) (                   \
 108     graph ?  hwctx->nb_graphics_queues :                            \
 109     comp  ? (hwctx->nb_comp_queues ?                                \
 110              hwctx->nb_comp_queues : hwctx->nb_graphics_queues) :   \
 111     tx    ? (hwctx->nb_tx_queues ? hwctx->nb_tx_queues :            \
 112              (hwctx->nb_comp_queues ?                               \
 113               hwctx->nb_comp_queues : hwctx->nb_graphics_queues)) : \
 114     0                                                               \
 115 )
 116
 117 #define VK_LOAD_PFN(inst, name) PFN_##name pfn_##name = (PFN_##name)           \
 118                                               vkGetInstanceProcAddr(inst, #name)
 119
 120 #define DEFAULT_USAGE_FLAGS (VK_IMAGE_USAGE_SAMPLED_BIT      |                 \
 121                              VK_IMAGE_USAGE_STORAGE_BIT      |                 \
 122                              VK_IMAGE_USAGE_TRANSFER_SRC_BIT |                 \
 123                              VK_IMAGE_USAGE_TRANSFER_DST_BIT)
 124
 125 #define ADD_VAL_TO_LIST(list, count, val)                                      \
 126     do {                                                                       \
 127         list = av_realloc_array(list, sizeof(*list), ++count);                 \
 128         if (!list) {                                                           \
 129             err = AVERROR(ENOMEM);                                             \
 130             goto fail;                                                         \
 131         }                                                                      \
 132         list[count - 1] = av_strdup(val);                                      \
 133         if (!list[count - 1]) {                                                \
 134             err = AVERROR(ENOMEM);                                             \
 135             goto fail;                                                         \
 136         }                                                                      \
 137     } while(0)
 138
 139 static const struct {
 140     enum AVPixelFormat pixfmt;
 141     const VkFormat vkfmts[3];
 142 } vk_pixfmt_map[] = {
 143     { AV_PIX_FMT_GRAY8,   { VK_FORMAT_R8_UNORM } },
 144     { AV_PIX_FMT_GRAY16,  { VK_FORMAT_R16_UNORM } },
 145     { AV_PIX_FMT_GRAYF32, { VK_FORMAT_R32_SFLOAT } },
 146
 147     { AV_PIX_FMT_NV12, { VK_FORMAT_R8_UNORM, VK_FORMAT_R8G8_UNORM } },
 148     { AV_PIX_FMT_P010, { VK_FORMAT_R16_UNORM, VK_FORMAT_R16G16_UNORM } },
 149     { AV_PIX_FMT_P016, { VK_FORMAT_R16_UNORM, VK_FORMAT_R16G16_UNORM } },
 150
 151     { AV_PIX_FMT_YUV420P, { VK_FORMAT_R8_UNORM, VK_FORMAT_R8_UNORM, VK_FORMAT_R8_UNORM } },
 152     { AV_PIX_FMT_YUV422P, { VK_FORMAT_R8_UNORM, VK_FORMAT_R8_UNORM, VK_FORMAT_R8_UNORM } },
 153     { AV_PIX_FMT_YUV444P, { VK_FORMAT_R8_UNORM, VK_FORMAT_R8_UNORM, VK_FORMAT_R8_UNORM } },
 154
 155     { AV_PIX_FMT_YUV420P16, { VK_FORMAT_R16_UNORM, VK_FORMAT_R16_UNORM, VK_FORMAT_R16_UNORM } },
 156     { AV_PIX_FMT_YUV422P16, { VK_FORMAT_R16_UNORM, VK_FORMAT_R16_UNORM, VK_FORMAT_R16_UNORM } },
 157     { AV_PIX_FMT_YUV444P16, { VK_FORMAT_R16_UNORM, VK_FORMAT_R16_UNORM, VK_FORMAT_R16_UNORM } },
 158
 159     { AV_PIX_FMT_ABGR,   { VK_FORMAT_A8B8G8R8_UNORM_PACK32 } },
 160     { AV_PIX_FMT_BGRA,   { VK_FORMAT_B8G8R8A8_UNORM } },
 161     { AV_PIX_FMT_RGBA,   { VK_FORMAT_R8G8B8A8_UNORM } },
 162     { AV_PIX_FMT_RGB24,  { VK_FORMAT_R8G8B8_UNORM } },
 163     { AV_PIX_FMT_BGR24,  { VK_FORMAT_B8G8R8_UNORM } },
 164     { AV_PIX_FMT_RGB48,  { VK_FORMAT_R16G16B16_UNORM } },
 165     { AV_PIX_FMT_RGBA64, { VK_FORMAT_R16G16B16A16_UNORM } },
 166     { AV_PIX_FMT_RGB565, { VK_FORMAT_R5G6B5_UNORM_PACK16 } },
 167     { AV_PIX_FMT_BGR565, { VK_FORMAT_B5G6R5_UNORM_PACK16 } },
 168     { AV_PIX_FMT_BGR0,   { VK_FORMAT_B8G8R8A8_UNORM } },
 169     { AV_PIX_FMT_0BGR,   { VK_FORMAT_A8B8G8R8_UNORM_PACK32 } },
 170     { AV_PIX_FMT_RGB0,   { VK_FORMAT_R8G8B8A8_UNORM } },
 171
 172     { AV_PIX_FMT_GBRPF32, { VK_FORMAT_R32_SFLOAT, VK_FORMAT_R32_SFLOAT, VK_FORMAT_R32_SFLOAT } },
 173 };
 174
 175 const VkFormat *av_vkfmt_from_pixfmt(enum AVPixelFormat p)
 176 {
 177     for (enum AVPixelFormat i = 0; i < FF_ARRAY_ELEMS(vk_pixfmt_map); i++)
 178         if (vk_pixfmt_map[i].pixfmt == p)
 179             return vk_pixfmt_map[i].vkfmts;
 180     return NULL;
 181 }
 182
 183 static int pixfmt_is_supported(AVVulkanDeviceContext *hwctx, enum AVPixelFormat p,
 184                                int linear)
 185 {
 186     const VkFormat *fmt = av_vkfmt_from_pixfmt(p);
 187     int planes = av_pix_fmt_count_planes(p);
 188
 189     if (!fmt)
 190         return 0;
 191
 192     for (int i = 0; i < planes; i++) {
 193         VkFormatFeatureFlags flags;
 194         VkFormatProperties2 prop = {
 195             .sType = VK_STRUCTURE_TYPE_FORMAT_PROPERTIES_2,
 196         };
 197         vkGetPhysicalDeviceFormatProperties2(hwctx->phys_dev, fmt[i], &prop);
 198         flags = linear ? prop.formatProperties.linearTilingFeatures :
 199                          prop.formatProperties.optimalTilingFeatures;
 200         if (!(flags & DEFAULT_USAGE_FLAGS))
 201             return 0;
 202     }
 203
 204     return 1;
 205 }
 206
 207 enum VulkanExtensions {
 208     EXT_EXTERNAL_DMABUF_MEMORY = 1ULL <<  0, /* VK_EXT_external_memory_dma_buf */
 209     EXT_DRM_MODIFIER_FLAGS     = 1ULL <<  1, /* VK_EXT_image_drm_format_modifier */
 210     EXT_EXTERNAL_FD_MEMORY     = 1ULL <<  2, /* VK_KHR_external_memory_fd */
 211     EXT_EXTERNAL_FD_SEM        = 1ULL <<  3, /* VK_KHR_external_semaphore_fd */
 212     EXT_EXTERNAL_HOST_MEMORY   = 1ULL <<  4, /* VK_EXT_external_memory_host */
 213
 214     EXT_NO_FLAG                = 1ULL << 63,
 215 };
 216
 217 typedef struct VulkanOptExtension {
 218     const char *name;
 219     uint64_t flag;
 220 } VulkanOptExtension;
 221
 222 static const VulkanOptExtension optional_instance_exts[] = {
 223     /* For future use */
 224 };
 225
 226 static const VulkanOptExtension optional_device_exts[] = {
 227     { VK_KHR_EXTERNAL_MEMORY_FD_EXTENSION_NAME,               EXT_EXTERNAL_FD_MEMORY,     },
 228     { VK_EXT_EXTERNAL_MEMORY_DMA_BUF_EXTENSION_NAME,          EXT_EXTERNAL_DMABUF_MEMORY, },
 229     { VK_EXT_IMAGE_DRM_FORMAT_MODIFIER_EXTENSION_NAME,        EXT_DRM_MODIFIER_FLAGS,     },
 230     { VK_KHR_EXTERNAL_SEMAPHORE_FD_EXTENSION_NAME,            EXT_EXTERNAL_FD_SEM,        },
 231     { VK_EXT_EXTERNAL_MEMORY_HOST_EXTENSION_NAME,             EXT_EXTERNAL_HOST_MEMORY,   },
 232 };
 233
 234 /* Converts return values to strings */
 235 static const char *vk_ret2str(VkResult res)
 236 {
 237 #define CASE(VAL) case VAL: return #VAL
 238     switch (res) {
 239     CASE(VK_SUCCESS);
 240     CASE(VK_NOT_READY);
 241     CASE(VK_TIMEOUT);
 242     CASE(VK_EVENT_SET);
 243     CASE(VK_EVENT_RESET);
 244     CASE(VK_INCOMPLETE);
 245     CASE(VK_ERROR_OUT_OF_HOST_MEMORY);
 246     CASE(VK_ERROR_OUT_OF_DEVICE_MEMORY);
 247     CASE(VK_ERROR_INITIALIZATION_FAILED);
 248     CASE(VK_ERROR_DEVICE_LOST);
 249     CASE(VK_ERROR_MEMORY_MAP_FAILED);
 250     CASE(VK_ERROR_LAYER_NOT_PRESENT);
 251     CASE(VK_ERROR_EXTENSION_NOT_PRESENT);
 252     CASE(VK_ERROR_FEATURE_NOT_PRESENT);
 253     CASE(VK_ERROR_INCOMPATIBLE_DRIVER);
 254     CASE(VK_ERROR_TOO_MANY_OBJECTS);
 255     CASE(VK_ERROR_FORMAT_NOT_SUPPORTED);
 256     CASE(VK_ERROR_FRAGMENTED_POOL);
 257     CASE(VK_ERROR_SURFACE_LOST_KHR);
 258     CASE(VK_ERROR_NATIVE_WINDOW_IN_USE_KHR);
 259     CASE(VK_SUBOPTIMAL_KHR);
 260     CASE(VK_ERROR_OUT_OF_DATE_KHR);
 261     CASE(VK_ERROR_INCOMPATIBLE_DISPLAY_KHR);
 262     CASE(VK_ERROR_VALIDATION_FAILED_EXT);
 263     CASE(VK_ERROR_INVALID_SHADER_NV);
 264     CASE(VK_ERROR_OUT_OF_POOL_MEMORY);
 265     CASE(VK_ERROR_INVALID_EXTERNAL_HANDLE);
 266     CASE(VK_ERROR_NOT_PERMITTED_EXT);
 267     CASE(VK_ERROR_INVALID_DRM_FORMAT_MODIFIER_PLANE_LAYOUT_EXT);
 268     CASE(VK_ERROR_INVALID_DEVICE_ADDRESS_EXT);
 269     CASE(VK_ERROR_FULL_SCREEN_EXCLUSIVE_MODE_LOST_EXT);
 270     default: return "Unknown error";
 271     }
 272 #undef CASE
 273 }
 274
 275 static VkBool32 vk_dbg_callback(VkDebugUtilsMessageSeverityFlagBitsEXT severity,
 276                                 VkDebugUtilsMessageTypeFlagsEXT messageType,
 277                                 const VkDebugUtilsMessengerCallbackDataEXT *data,
 278                                 void *priv)
 279 {
 280     int l;
 281     AVHWDeviceContext *ctx = priv;
 282
 283     switch (severity) {
 284     case VK_DEBUG_UTILS_MESSAGE_SEVERITY_VERBOSE_BIT_EXT: l = AV_LOG_VERBOSE; break;
 285     case VK_DEBUG_UTILS_MESSAGE_SEVERITY_INFO_BIT_EXT:    l = AV_LOG_INFO;    break;
 286     case VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT: l = AV_LOG_WARNING; break;
 287     case VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT:   l = AV_LOG_ERROR;   break;
 288     default:                                              l = AV_LOG_DEBUG;   break;
 289     }
 290
 291     av_log(ctx, l, "%s\n", data->pMessage);
 292     for (int i = 0; i < data->cmdBufLabelCount; i++)
 293         av_log(ctx, l, "\t%i: %s\n", i, data->pCmdBufLabels[i].pLabelName);
 294
 295     return 0;
 296 }
 297
 298 static int check_extensions(AVHWDeviceContext *ctx, int dev, AVDictionary *opts,
 299                             const char * const **dst, uint32_t *num, int debug)
 300 {
 301     const char *tstr;
 302     const char **extension_names = NULL;
 303     VulkanDevicePriv *p = ctx->internal->priv;
 304     AVVulkanDeviceContext *hwctx = ctx->hwctx;
 305     int err = 0, found, extensions_found = 0;
 306
 307     const char *mod;
 308     int optional_exts_num;
 309     uint32_t sup_ext_count;
 310     char *user_exts_str = NULL;
 311     AVDictionaryEntry *user_exts;
 312     VkExtensionProperties *sup_ext;
 313     const VulkanOptExtension *optional_exts;
 314
 315     if (!dev) {
 316         mod = "instance";
 317         optional_exts = optional_instance_exts;
 318         optional_exts_num = FF_ARRAY_ELEMS(optional_instance_exts);
 319         user_exts = av_dict_get(opts, "instance_extensions", NULL, 0);
 320         if (user_exts) {
 321             user_exts_str = av_strdup(user_exts->value);
 322             if (!user_exts_str) {
 323                 err = AVERROR(ENOMEM);
 324                 goto fail;
 325             }
 326         }
 327         vkEnumerateInstanceExtensionProperties(NULL, &sup_ext_count, NULL);
 328         sup_ext = av_malloc_array(sup_ext_count, sizeof(VkExtensionProperties));
 329         if (!sup_ext)
 330             return AVERROR(ENOMEM);
 331         vkEnumerateInstanceExtensionProperties(NULL, &sup_ext_count, sup_ext);
 332     } else {
 333         mod = "device";
 334         optional_exts = optional_device_exts;
 335         optional_exts_num = FF_ARRAY_ELEMS(optional_device_exts);
 336         user_exts = av_dict_get(opts, "device_extensions", NULL, 0);
 337         if (user_exts) {
 338             user_exts_str = av_strdup(user_exts->value);
 339             if (!user_exts_str) {
 340                 err = AVERROR(ENOMEM);
 341                 goto fail;
 342             }
 343         }
 344         vkEnumerateDeviceExtensionProperties(hwctx->phys_dev, NULL,
 345                                              &sup_ext_count, NULL);
 346         sup_ext = av_malloc_array(sup_ext_count, sizeof(VkExtensionProperties));
 347         if (!sup_ext)
 348             return AVERROR(ENOMEM);
 349         vkEnumerateDeviceExtensionProperties(hwctx->phys_dev, NULL,
 350                                              &sup_ext_count, sup_ext);
 351     }
 352
 353     for (int i = 0; i < optional_exts_num; i++) {
 354         tstr = optional_exts[i].name;
 355         found = 0;
 356         for (int j = 0; j < sup_ext_count; j++) {
 357             if (!strcmp(tstr, sup_ext[j].extensionName)) {
 358                 found = 1;
 359                 break;
 360             }
 361         }
 362         if (!found)
 363             continue;
 364
 365         av_log(ctx, AV_LOG_VERBOSE, "Using %s extension \"%s\"\n", mod, tstr);
 366         p->extensions |= optional_exts[i].flag;
 367         ADD_VAL_TO_LIST(extension_names, extensions_found, tstr);
 368     }
 369
 370     if (debug && !dev) {
 371         tstr = VK_EXT_DEBUG_UTILS_EXTENSION_NAME;
 372         found = 0;
 373         for (int j = 0; j < sup_ext_count; j++) {
 374             if (!strcmp(tstr, sup_ext[j].extensionName)) {
 375                 found = 1;
 376                 break;
 377             }
 378         }
 379         if (found) {
 380             av_log(ctx, AV_LOG_VERBOSE, "Using %s extension \"%s\"\n", mod, tstr);
 381             ADD_VAL_TO_LIST(extension_names, extensions_found, tstr);
 382         } else {
 383             av_log(ctx, AV_LOG_ERROR, "Debug extension \"%s\" not found!\n",
 384                    tstr);
 385             err = AVERROR(EINVAL);
 386             goto fail;
 387         }
 388     }
 389
 390     if (user_exts_str) {
 391         char *save, *token = av_strtok(user_exts_str, "+", &save);
 392         while (token) {
 393             found = 0;
 394             for (int j = 0; j < sup_ext_count; j++) {
 395                 if (!strcmp(token, sup_ext[j].extensionName)) {
 396                     found = 1;
 397                     break;
 398                 }
 399             }
 400             if (found) {
 401                 av_log(ctx, AV_LOG_VERBOSE, "Using %s extension \"%s\"\n", mod, token);
 402                 ADD_VAL_TO_LIST(extension_names, extensions_found, token);
 403             } else {
 404                 av_log(ctx, AV_LOG_WARNING, "%s extension \"%s\" not found, excluding.\n",
 405                        mod, token);
 406             }
 407             token = av_strtok(NULL, "+", &save);
 408         }
 409     }
 410
 411     *dst = extension_names;
 412     *num = extensions_found;
 413
 414     av_free(user_exts_str);
 415     av_free(sup_ext);
 416     return 0;
 417
 418 fail:
 419     if (extension_names)
 420         for (int i = 0; i < extensions_found; i++)
 421             av_free((void *)extension_names[i]);
 422     av_free(extension_names);
 423     av_free(user_exts_str);
 424     av_free(sup_ext);
 425     return err;
 426 }
 427
 428 /* Creates a VkInstance */
 429 static int create_instance(AVHWDeviceContext *ctx, AVDictionary *opts)
 430 {
 431     int err = 0;
 432     VkResult ret;
 433     VulkanDevicePriv *p = ctx->internal->priv;
 434     AVVulkanDeviceContext *hwctx = ctx->hwctx;
 435     AVDictionaryEntry *debug_opt = av_dict_get(opts, "debug", NULL, 0);
 436     const int debug_mode = debug_opt && strtol(debug_opt->value, NULL, 10);
 437     VkApplicationInfo application_info = {
 438         .sType              = VK_STRUCTURE_TYPE_APPLICATION_INFO,
 439         .pEngineName        = "libavutil",
 440         .apiVersion         = VK_API_VERSION_1_1,
 441         .engineVersion      = VK_MAKE_VERSION(LIBAVUTIL_VERSION_MAJOR,
 442                                               LIBAVUTIL_VERSION_MINOR,
 443                                               LIBAVUTIL_VERSION_MICRO),
 444     };
 445     VkInstanceCreateInfo inst_props = {
 446         .sType            = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO,
 447         .pApplicationInfo = &application_info,
 448     };
 449
 450     /* Check for present/missing extensions */
 451     err = check_extensions(ctx, 0, opts, &inst_props.ppEnabledExtensionNames,
 452                            &inst_props.enabledExtensionCount, debug_mode);
 453     if (err < 0)
 454         return err;
 455
 456     if (debug_mode) {
 457         static const char *layers[] = { "VK_LAYER_KHRONOS_validation" };
 458         inst_props.ppEnabledLayerNames = layers;
 459         inst_props.enabledLayerCount = FF_ARRAY_ELEMS(layers);
 460     }
 461
 462     /* Try to create the instance */
 463     ret = vkCreateInstance(&inst_props, hwctx->alloc, &hwctx->inst);
 464
 465     /* Check for errors */
 466     if (ret != VK_SUCCESS) {
 467         av_log(ctx, AV_LOG_ERROR, "Instance creation failure: %s\n",
 468                vk_ret2str(ret));
 469         for (int i = 0; i < inst_props.enabledExtensionCount; i++)
 470             av_free((void *)inst_props.ppEnabledExtensionNames[i]);
 471         av_free((void *)inst_props.ppEnabledExtensionNames);
 472         return AVERROR_EXTERNAL;
 473     }
 474
 475     if (debug_mode) {
 476         VkDebugUtilsMessengerCreateInfoEXT dbg = {
 477             .sType = VK_STRUCTURE_TYPE_DEBUG_UTILS_MESSENGER_CREATE_INFO_EXT,
 478             .messageSeverity = VK_DEBUG_UTILS_MESSAGE_SEVERITY_VERBOSE_BIT_EXT |
 479                                VK_DEBUG_UTILS_MESSAGE_SEVERITY_INFO_BIT_EXT    |
 480                                VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT |
 481                                VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT,
 482             .messageType = VK_DEBUG_UTILS_MESSAGE_TYPE_GENERAL_BIT_EXT    |
 483                            VK_DEBUG_UTILS_MESSAGE_TYPE_VALIDATION_BIT_EXT |
 484                            VK_DEBUG_UTILS_MESSAGE_TYPE_PERFORMANCE_BIT_EXT,
 485             .pfnUserCallback = vk_dbg_callback,
 486             .pUserData = ctx,
 487         };
 488         VK_LOAD_PFN(hwctx->inst, vkCreateDebugUtilsMessengerEXT);
 489
 490         pfn_vkCreateDebugUtilsMessengerEXT(hwctx->inst, &dbg,
 491                                            hwctx->alloc, &p->debug_ctx);
 492     }
 493
 494     hwctx->enabled_inst_extensions = inst_props.ppEnabledExtensionNames;
 495     hwctx->nb_enabled_inst_extensions = inst_props.enabledExtensionCount;
 496
 497     return 0;
 498 }
 499
 500 typedef struct VulkanDeviceSelection {
 501     uint8_t uuid[VK_UUID_SIZE]; /* Will use this first unless !has_uuid */
 502     int has_uuid;
 503     const char *name; /* Will use this second unless NULL */
 504     uint32_t pci_device; /* Will use this third unless 0x0 */
 505     uint32_t vendor_id; /* Last resort to find something deterministic */
 506     int index; /* Finally fall back to index */
 507 } VulkanDeviceSelection;
 508
 509 static const char *vk_dev_type(enum VkPhysicalDeviceType type)
 510 {
 511     switch (type) {
 512     case VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU: return "integrated";
 513     case VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU:   return "discrete";
 514     case VK_PHYSICAL_DEVICE_TYPE_VIRTUAL_GPU:    return "virtual";
 515     case VK_PHYSICAL_DEVICE_TYPE_CPU:            return "software";
 516     default:                                     return "unknown";
 517     }
 518 }
 519
 520 /* Finds a device */
 521 static int find_device(AVHWDeviceContext *ctx, VulkanDeviceSelection *select)
 522 {
 523     int err = 0, choice = -1;
 524     uint32_t num;
 525     VkResult ret;
 526     VkPhysicalDevice *devices = NULL;
 527     VkPhysicalDeviceIDProperties *idp = NULL;
 528     VkPhysicalDeviceProperties2 *prop = NULL;
 529     AVVulkanDeviceContext *hwctx = ctx->hwctx;
 530
 531     ret = vkEnumeratePhysicalDevices(hwctx->inst, &num, NULL);
 532     if (ret != VK_SUCCESS || !num) {
 533         av_log(ctx, AV_LOG_ERROR, "No devices found: %s!\n", vk_ret2str(ret));
 534         return AVERROR(ENODEV);
 535     }
 536
 537     devices = av_malloc_array(num, sizeof(VkPhysicalDevice));
 538     if (!devices)
 539         return AVERROR(ENOMEM);
 540
 541     ret = vkEnumeratePhysicalDevices(hwctx->inst, &num, devices);
 542     if (ret != VK_SUCCESS) {
 543         av_log(ctx, AV_LOG_ERROR, "Failed enumerating devices: %s\n",
 544                vk_ret2str(ret));
 545         err = AVERROR(ENODEV);
 546         goto end;
 547     }
 548
 549     prop = av_mallocz_array(num, sizeof(*prop));
 550     if (!prop) {
 551         err = AVERROR(ENOMEM);
 552         goto end;
 553     }
 554
 555     idp = av_mallocz_array(num, sizeof(*idp));
 556     if (!idp) {
 557         err = AVERROR(ENOMEM);
 558         goto end;
 559     }
 560
 561     av_log(ctx, AV_LOG_VERBOSE, "GPU listing:\n");
 562     for (int i = 0; i < num; i++) {
 563         idp[i].sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_ID_PROPERTIES;
 564         prop[i].sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROPERTIES_2;
 565         prop[i].pNext = &idp[i];
 566
 567         vkGetPhysicalDeviceProperties2(devices[i], &prop[i]);
 568         av_log(ctx, AV_LOG_VERBOSE, "    %d: %s (%s) (0x%x)\n", i,
 569                prop[i].properties.deviceName,
 570                vk_dev_type(prop[i].properties.deviceType),
 571                prop[i].properties.deviceID);
 572     }
 573
 574     if (select->has_uuid) {
 575         for (int i = 0; i < num; i++) {
 576             if (!strncmp(idp[i].deviceUUID, select->uuid, VK_UUID_SIZE)) {
 577                 choice = i;
 578                 goto end;
 579              }
 580         }
 581         av_log(ctx, AV_LOG_ERROR, "Unable to find device by given UUID!\n");
 582         err = AVERROR(ENODEV);
 583         goto end;
 584     } else if (select->name) {
 585         av_log(ctx, AV_LOG_VERBOSE, "Requested device: %s\n", select->name);
 586         for (int i = 0; i < num; i++) {
 587             if (strstr(prop[i].properties.deviceName, select->name)) {
 588                 choice = i;
 589                 goto end;
 590              }
 591         }
 592         av_log(ctx, AV_LOG_ERROR, "Unable to find device \"%s\"!\n",
 593                select->name);
 594         err = AVERROR(ENODEV);
 595         goto end;
 596     } else if (select->pci_device) {
 597         av_log(ctx, AV_LOG_VERBOSE, "Requested device: 0x%x\n", select->pci_device);
 598         for (int i = 0; i < num; i++) {
 599             if (select->pci_device == prop[i].properties.deviceID) {
 600                 choice = i;
 601                 goto end;
 602             }
 603         }
 604         av_log(ctx, AV_LOG_ERROR, "Unable to find device with PCI ID 0x%x!\n",
 605                select->pci_device);
 606         err = AVERROR(EINVAL);
 607         goto end;
 608     } else if (select->vendor_id) {
 609         av_log(ctx, AV_LOG_VERBOSE, "Requested vendor: 0x%x\n", select->vendor_id);
 610         for (int i = 0; i < num; i++) {
 611             if (select->vendor_id == prop[i].properties.vendorID) {
 612                 choice = i;
 613                 goto end;
 614             }
 615         }
 616         av_log(ctx, AV_LOG_ERROR, "Unable to find device with Vendor ID 0x%x!\n",
 617                select->vendor_id);
 618         err = AVERROR(ENODEV);
 619         goto end;
 620     } else {
 621         if (select->index < num) {
 622             choice = select->index;
 623             goto end;
 624         }
 625         av_log(ctx, AV_LOG_ERROR, "Unable to find device with index %i!\n",
 626                select->index);
 627         err = AVERROR(ENODEV);
 628         goto end;
 629     }
 630
 631 end:
 632     if (choice > -1)
 633         hwctx->phys_dev = devices[choice];
 634
 635     av_free(devices);
 636     av_free(prop);
 637     av_free(idp);
 638
 639     return err;
 640 }
 641
 642 static int search_queue_families(AVHWDeviceContext *ctx, VkDeviceCreateInfo *cd)
 643 {
 644     uint32_t num;
 645     float *weights;
 646     VkQueueFamilyProperties *qs = NULL;
 647     AVVulkanDeviceContext *hwctx = ctx->hwctx;
 648     int graph_index = -1, comp_index = -1, tx_index = -1;
 649     VkDeviceQueueCreateInfo *pc = (VkDeviceQueueCreateInfo *)cd->pQueueCreateInfos;
 650
 651     /* First get the number of queue families */
 652     vkGetPhysicalDeviceQueueFamilyProperties(hwctx->phys_dev, &num, NULL);
 653     if (!num) {
 654         av_log(ctx, AV_LOG_ERROR, "Failed to get queues!\n");
 655         return AVERROR_EXTERNAL;
 656     }
 657
 658     /* Then allocate memory */
 659     qs = av_malloc_array(num, sizeof(VkQueueFamilyProperties));
 660     if (!qs)
 661         return AVERROR(ENOMEM);
 662
 663     /* Finally retrieve the queue families */
 664     vkGetPhysicalDeviceQueueFamilyProperties(hwctx->phys_dev, &num, qs);
 665
 666 #define SEARCH_FLAGS(expr, out)                                                \
 667     for (int i = 0; i < num; i++) {                                            \
 668         const VkQueueFlagBits flags = qs[i].queueFlags;                        \
 669         if (expr) {                                                            \
 670             out = i;                                                           \
 671             break;                                                             \
 672         }                                                                      \
 673     }
 674
 675     SEARCH_FLAGS(flags & VK_QUEUE_GRAPHICS_BIT, graph_index)
 676
 677     SEARCH_FLAGS((flags &  VK_QUEUE_COMPUTE_BIT) && (i != graph_index),
 678                  comp_index)
 679
 680     SEARCH_FLAGS((flags & VK_QUEUE_TRANSFER_BIT) && (i != graph_index) &&
 681                  (i != comp_index), tx_index)
 682
 683 #undef SEARCH_FLAGS
 684 #define ADD_QUEUE(fidx, graph, comp, tx)                                                 \
 685     av_log(ctx, AV_LOG_VERBOSE, "Using queue family %i (total queues: %i) for %s%s%s\n", \
 686            fidx, qs[fidx].queueCount, graph ? "graphics " : "",                          \
 687            comp ? "compute " : "", tx ? "transfers " : "");                              \
 688     av_log(ctx, AV_LOG_VERBOSE, "    QF %i flags: %s%s%s%s\n", fidx,                     \
 689            ((qs[fidx].queueFlags) & VK_QUEUE_GRAPHICS_BIT) ? "(graphics) " : "",         \
 690            ((qs[fidx].queueFlags) & VK_QUEUE_COMPUTE_BIT) ? "(compute) " : "",           \
 691            ((qs[fidx].queueFlags) & VK_QUEUE_TRANSFER_BIT) ? "(transfers) " : "",        \
 692            ((qs[fidx].queueFlags) & VK_QUEUE_SPARSE_BINDING_BIT) ? "(sparse) " : "");    \
 693     pc[cd->queueCreateInfoCount].queueFamilyIndex = fidx;                                \
 694     pc[cd->queueCreateInfoCount].queueCount = qs[fidx].queueCount;                       \
 695     weights = av_malloc(qs[fidx].queueCount * sizeof(float));                            \
 696     pc[cd->queueCreateInfoCount].pQueuePriorities = weights;                             \
 697     if (!weights)                                                                        \
 698         goto fail;                                                                       \
 699     for (int i = 0; i < qs[fidx].queueCount; i++)                                        \
 700         weights[i] = 1.0f;                                                               \
 701     cd->queueCreateInfoCount++;
 702
 703     ADD_QUEUE(graph_index, 1, comp_index < 0, tx_index < 0 && comp_index < 0)
 704     hwctx->queue_family_index      = graph_index;
 705     hwctx->queue_family_comp_index = graph_index;
 706     hwctx->queue_family_tx_index   = graph_index;
 707     hwctx->nb_graphics_queues      = qs[graph_index].queueCount;
 708
 709     if (comp_index != -1) {
 710         ADD_QUEUE(comp_index, 0, 1, tx_index < 0)
 711         hwctx->queue_family_tx_index   = comp_index;
 712         hwctx->queue_family_comp_index = comp_index;
 713         hwctx->nb_comp_queues          = qs[comp_index].queueCount;
 714     }
 715
 716     if (tx_index != -1) {
 717         ADD_QUEUE(tx_index, 0, 0, 1)
 718         hwctx->queue_family_tx_index = tx_index;
 719         hwctx->nb_tx_queues          = qs[tx_index].queueCount;
 720     }
 721
 722 #undef ADD_QUEUE
 723     av_free(qs);
 724
 725     return 0;
 726
 727 fail:
 728     av_freep(&pc[0].pQueuePriorities);
 729     av_freep(&pc[1].pQueuePriorities);
 730     av_freep(&pc[2].pQueuePriorities);
 731     av_free(qs);
 732
 733     return AVERROR(ENOMEM);
 734 }
 735
 736 static int create_exec_ctx(AVHWFramesContext *hwfc, VulkanExecCtx *cmd,
 737                            int queue_family_index, int num_queues)
 738 {
 739     VkResult ret;
 740     AVVulkanDeviceContext *hwctx = hwfc->device_ctx->hwctx;
 741
 742     VkCommandPoolCreateInfo cqueue_create = {
 743         .sType              = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO,
 744         .flags              = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT,
 745         .queueFamilyIndex   = queue_family_index,
 746     };
 747     VkCommandBufferAllocateInfo cbuf_create = {
 748         .sType              = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO,
 749         .level              = VK_COMMAND_BUFFER_LEVEL_PRIMARY,
 750         .commandBufferCount = num_queues,
 751     };
 752
 753     cmd->nb_queues = num_queues;
 754
 755     cmd->queues = av_mallocz(num_queues * sizeof(*cmd->queues));
 756     if (!cmd->queues)
 757         return AVERROR(ENOMEM);
 758
 759     cmd->bufs = av_mallocz(num_queues * sizeof(*cmd->bufs));
 760     if (!cmd->bufs)
 761         return AVERROR(ENOMEM);
 762
 763     /* Create command pool */
 764     ret = vkCreateCommandPool(hwctx->act_dev, &cqueue_create,
 765                               hwctx->alloc, &cmd->pool);
 766     if (ret != VK_SUCCESS) {
 767         av_log(hwfc, AV_LOG_ERROR, "Command pool creation failure: %s\n",
 768                vk_ret2str(ret));
 769         return AVERROR_EXTERNAL;
 770     }
 771
 772     cbuf_create.commandPool = cmd->pool;
 773
 774     /* Allocate command buffer */
 775     ret = vkAllocateCommandBuffers(hwctx->act_dev, &cbuf_create, cmd->bufs);
 776     if (ret != VK_SUCCESS) {
 777         av_log(hwfc, AV_LOG_ERROR, "Command buffer alloc failure: %s\n",
 778                vk_ret2str(ret));
 779         return AVERROR_EXTERNAL;
 780     }
 781
 782     for (int i = 0; i < num_queues; i++) {
 783         VulkanQueueCtx *q = &cmd->queues[i];
 784         vkGetDeviceQueue(hwctx->act_dev, queue_family_index, i, &q->queue);
 785         q->was_synchronous = 1;
 786     }
 787
 788     return 0;
 789 }
 790
 791 static void free_exec_ctx(AVHWFramesContext *hwfc, VulkanExecCtx *cmd)
 792 {
 793     AVVulkanDeviceContext *hwctx = hwfc->device_ctx->hwctx;
 794
 795     /* Make sure all queues have finished executing */
 796     for (int i = 0; i < cmd->nb_queues; i++) {
 797         VulkanQueueCtx *q = &cmd->queues[i];
 798
 799         if (q->fence && !q->was_synchronous) {
 800             vkWaitForFences(hwctx->act_dev, 1, &q->fence, VK_TRUE, UINT64_MAX);
 801             vkResetFences(hwctx->act_dev, 1, &q->fence);
 802         }
 803
 804         /* Free the fence */
 805         if (q->fence)
 806             vkDestroyFence(hwctx->act_dev, q->fence, hwctx->alloc);
 807
 808         /* Free buffer dependencies */
 809         for (int j = 0; j < q->nb_buf_deps; j++)
 810             av_buffer_unref(&q->buf_deps[j]);
 811         av_free(q->buf_deps);
 812     }
 813
 814     if (cmd->bufs)
 815         vkFreeCommandBuffers(hwctx->act_dev, cmd->pool, cmd->nb_queues, cmd->bufs);
 816     if (cmd->pool)
 817         vkDestroyCommandPool(hwctx->act_dev, cmd->pool, hwctx->alloc);
 818
 819     av_freep(&cmd->bufs);
 820     av_freep(&cmd->queues);
 821 }
 822
 823 static VkCommandBuffer get_buf_exec_ctx(AVHWFramesContext *hwfc, VulkanExecCtx *cmd)
 824 {
 825     return cmd->bufs[cmd->cur_queue_idx];
 826 }
 827
 828 static void unref_exec_ctx_deps(AVHWFramesContext *hwfc, VulkanExecCtx *cmd)
 829 {
 830     VulkanQueueCtx *q = &cmd->queues[cmd->cur_queue_idx];
 831
 832     for (int j = 0; j < q->nb_buf_deps; j++)
 833         av_buffer_unref(&q->buf_deps[j]);
 834     q->nb_buf_deps = 0;
 835 }
 836
 837 static int wait_start_exec_ctx(AVHWFramesContext *hwfc, VulkanExecCtx *cmd)
 838 {
 839     VkResult ret;
 840     AVVulkanDeviceContext *hwctx = hwfc->device_ctx->hwctx;
 841     VulkanQueueCtx *q = &cmd->queues[cmd->cur_queue_idx];
 842
 843     VkCommandBufferBeginInfo cmd_start = {
 844         .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO,
 845         .flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT,
 846     };
 847
 848     /* Create the fence and don't wait for it initially */
 849     if (!q->fence) {
 850         VkFenceCreateInfo fence_spawn = {
 851             .sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO,
 852         };
 853         ret = vkCreateFence(hwctx->act_dev, &fence_spawn, hwctx->alloc,
 854                             &q->fence);
 855         if (ret != VK_SUCCESS) {
 856             av_log(hwfc, AV_LOG_ERROR, "Failed to queue frame fence: %s\n",
 857                    vk_ret2str(ret));
 858             return AVERROR_EXTERNAL;
 859         }
 860     } else if (!q->was_synchronous) {
 861         vkWaitForFences(hwctx->act_dev, 1, &q->fence, VK_TRUE, UINT64_MAX);
 862         vkResetFences(hwctx->act_dev, 1, &q->fence);
 863     }
 864
 865     /* Discard queue dependencies */
 866     unref_exec_ctx_deps(hwfc, cmd);
 867
 868     ret = vkBeginCommandBuffer(cmd->bufs[cmd->cur_queue_idx], &cmd_start);
 869     if (ret != VK_SUCCESS) {
 870         av_log(hwfc, AV_LOG_ERROR, "Unable to init command buffer: %s\n",
 871                vk_ret2str(ret));
 872         return AVERROR_EXTERNAL;
 873     }
 874
 875     return 0;
 876 }
 877
 878 static int add_buf_dep_exec_ctx(AVHWFramesContext *hwfc, VulkanExecCtx *cmd,
 879                                 AVBufferRef * const *deps, int nb_deps)
 880 {
 881     AVBufferRef **dst;
 882     VulkanQueueCtx *q = &cmd->queues[cmd->cur_queue_idx];
 883
 884     if (!deps || !nb_deps)
 885         return 0;
 886
 887     dst = av_fast_realloc(q->buf_deps, &q->buf_deps_alloc_size,
 888                           (q->nb_buf_deps + nb_deps) * sizeof(*dst));
 889     if (!dst)
 890         goto err;
 891
 892     q->buf_deps = dst;
 893
 894     for (int i = 0; i < nb_deps; i++) {
 895         q->buf_deps[q->nb_buf_deps] = av_buffer_ref(deps[i]);
 896         if (!q->buf_deps[q->nb_buf_deps])
 897             goto err;
 898         q->nb_buf_deps++;
 899     }
 900
 901     return 0;
 902
 903 err:
 904     unref_exec_ctx_deps(hwfc, cmd);
 905     return AVERROR(ENOMEM);
 906 }
 907
 908 static int submit_exec_ctx(AVHWFramesContext *hwfc, VulkanExecCtx *cmd,
 909                            VkSubmitInfo *s_info, int synchronous)
 910 {
 911     VkResult ret;
 912     VulkanQueueCtx *q = &cmd->queues[cmd->cur_queue_idx];
 913
 914     ret = vkEndCommandBuffer(cmd->bufs[cmd->cur_queue_idx]);
 915     if (ret != VK_SUCCESS) {
 916         av_log(hwfc, AV_LOG_ERROR, "Unable to finish command buffer: %s\n",
 917                vk_ret2str(ret));
 918         unref_exec_ctx_deps(hwfc, cmd);
 919         return AVERROR_EXTERNAL;
 920     }
 921
 922     s_info->pCommandBuffers = &cmd->bufs[cmd->cur_queue_idx];
 923     s_info->commandBufferCount = 1;
 924
 925     ret = vkQueueSubmit(q->queue, 1, s_info, q->fence);
 926     if (ret != VK_SUCCESS) {
 927         unref_exec_ctx_deps(hwfc, cmd);
 928         return AVERROR_EXTERNAL;
 929     }
 930
 931     q->was_synchronous = synchronous;
 932
 933     if (synchronous) {
 934         AVVulkanDeviceContext *hwctx = hwfc->device_ctx->hwctx;
 935         vkWaitForFences(hwctx->act_dev, 1, &q->fence, VK_TRUE, UINT64_MAX);
 936         vkResetFences(hwctx->act_dev, 1, &q->fence);
 937         unref_exec_ctx_deps(hwfc, cmd);
 938     } else { /* Rotate queues */
 939         cmd->cur_queue_idx = (cmd->cur_queue_idx + 1) % cmd->nb_queues;
 940     }
 941
 942     return 0;
 943 }
 944
 945 static void vulkan_device_free(AVHWDeviceContext *ctx)
 946 {
 947     VulkanDevicePriv *p = ctx->internal->priv;
 948     AVVulkanDeviceContext *hwctx = ctx->hwctx;
 949
 950     vkDestroyDevice(hwctx->act_dev, hwctx->alloc);
 951
 952     if (p->debug_ctx) {
 953         VK_LOAD_PFN(hwctx->inst, vkDestroyDebugUtilsMessengerEXT);
 954         pfn_vkDestroyDebugUtilsMessengerEXT(hwctx->inst, p->debug_ctx,
 955                                             hwctx->alloc);
 956     }
 957
 958     vkDestroyInstance(hwctx->inst, hwctx->alloc);
 959
 960     for (int i = 0; i < hwctx->nb_enabled_inst_extensions; i++)
 961         av_free((void *)hwctx->enabled_inst_extensions[i]);
 962     av_free((void *)hwctx->enabled_inst_extensions);
 963
 964     for (int i = 0; i < hwctx->nb_enabled_dev_extensions; i++)
 965         av_free((void *)hwctx->enabled_dev_extensions[i]);
 966     av_free((void *)hwctx->enabled_dev_extensions);
 967 }
 968
 969 static int vulkan_device_create_internal(AVHWDeviceContext *ctx,
 970                                          VulkanDeviceSelection *dev_select,
 971                                          AVDictionary *opts, int flags)
 972 {
 973     int err = 0;
 974     VkResult ret;
 975     AVDictionaryEntry *opt_d;
 976     VulkanDevicePriv *p = ctx->internal->priv;
 977     AVVulkanDeviceContext *hwctx = ctx->hwctx;
 978     VkPhysicalDeviceFeatures dev_features = { 0 };
 979     VkDeviceQueueCreateInfo queue_create_info[3] = {
 980         { .sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO, },
 981         { .sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO, },
 982         { .sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO, },
 983     };
 984
 985     VkDeviceCreateInfo dev_info = {
 986         .sType                = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO,
 987         .pNext                = &hwctx->device_features,
 988         .pQueueCreateInfos    = queue_create_info,
 989         .queueCreateInfoCount = 0,
 990     };
 991
 992     hwctx->device_features.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2;
 993     ctx->free = vulkan_device_free;
 994
 995     /* Create an instance if not given one */
 996     if ((err = create_instance(ctx, opts)))
 997         goto end;
 998
 999     /* Find a device (if not given one) */
1000     if ((err = find_device(ctx, dev_select)))
1001         goto end;
1002
1003     vkGetPhysicalDeviceFeatures(hwctx->phys_dev, &dev_features);
1004 #define COPY_FEATURE(DST, NAME) (DST).features.NAME = dev_features.NAME;
1005     COPY_FEATURE(hwctx->device_features, shaderImageGatherExtended)
1006     COPY_FEATURE(hwctx->device_features, fragmentStoresAndAtomics)
1007     COPY_FEATURE(hwctx->device_features, vertexPipelineStoresAndAtomics)
1008     COPY_FEATURE(hwctx->device_features, shaderInt64)
1009 #undef COPY_FEATURE
1010
1011     /* Search queue family */
1012     if ((err = search_queue_families(ctx, &dev_info)))
1013         goto end;
1014
1015     if ((err = check_extensions(ctx, 1, opts, &dev_info.ppEnabledExtensionNames,
1016                                 &dev_info.enabledExtensionCount, 0))) {
1017         av_free((void *)queue_create_info[0].pQueuePriorities);
1018         av_free((void *)queue_create_info[1].pQueuePriorities);
1019         av_free((void *)queue_create_info[2].pQueuePriorities);
1020         goto end;
1021     }
1022
1023     ret = vkCreateDevice(hwctx->phys_dev, &dev_info, hwctx->alloc,
1024                          &hwctx->act_dev);
1025
1026     av_free((void *)queue_create_info[0].pQueuePriorities);
1027     av_free((void *)queue_create_info[1].pQueuePriorities);
1028     av_free((void *)queue_create_info[2].pQueuePriorities);
1029
1030     if (ret != VK_SUCCESS) {
1031         av_log(ctx, AV_LOG_ERROR, "Device creation failure: %s\n",
1032                vk_ret2str(ret));
1033         for (int i = 0; i < dev_info.enabledExtensionCount; i++)
1034             av_free((void *)dev_info.ppEnabledExtensionNames[i]);
1035         av_free((void *)dev_info.ppEnabledExtensionNames);
1036         err = AVERROR_EXTERNAL;
1037         goto end;
1038     }
1039
1040     /* Tiled images setting, use them by default */
1041     opt_d = av_dict_get(opts, "linear_images", NULL, 0);
1042     if (opt_d)
1043         p->use_linear_images = strtol(opt_d->value, NULL, 10);
1044
1045     hwctx->enabled_dev_extensions = dev_info.ppEnabledExtensionNames;
1046     hwctx->nb_enabled_dev_extensions = dev_info.enabledExtensionCount;
1047
1048 end:
1049     return err;
1050 }
1051
1052 static int vulkan_device_init(AVHWDeviceContext *ctx)
1053 {
1054     uint32_t queue_num;
1055     AVVulkanDeviceContext *hwctx = ctx->hwctx;
1056     VulkanDevicePriv *p = ctx->internal->priv;
1057
1058     /* Set device extension flags */
1059     for (int i = 0; i < hwctx->nb_enabled_dev_extensions; i++) {
1060         for (int j = 0; j < FF_ARRAY_ELEMS(optional_device_exts); j++) {
1061             if (!strcmp(hwctx->enabled_dev_extensions[i],
1062                         optional_device_exts[j].name)) {
1063                 av_log(ctx, AV_LOG_VERBOSE, "Using device extension %s\n",
1064                        hwctx->enabled_dev_extensions[i]);
1065                 p->extensions |= optional_device_exts[j].flag;
1066                 break;
1067             }
1068         }
1069     }
1070
1071     p->props.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROPERTIES_2;
1072     p->props.pNext = &p->hprops;
1073     p->hprops.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTERNAL_MEMORY_HOST_PROPERTIES_EXT;
1074
1075     vkGetPhysicalDeviceProperties2(hwctx->phys_dev, &p->props);
1076     av_log(ctx, AV_LOG_VERBOSE, "Using device: %s\n",
1077            p->props.properties.deviceName);
1078     av_log(ctx, AV_LOG_VERBOSE, "Alignments:\n");
1079     av_log(ctx, AV_LOG_VERBOSE, "    optimalBufferCopyRowPitchAlignment: %li\n",
1080            p->props.properties.limits.optimalBufferCopyRowPitchAlignment);
1081     av_log(ctx, AV_LOG_VERBOSE, "    minMemoryMapAlignment:              %li\n",
1082            p->props.properties.limits.minMemoryMapAlignment);
1083     if (p->extensions & EXT_EXTERNAL_HOST_MEMORY)
1084         av_log(ctx, AV_LOG_VERBOSE, "    minImportedHostPointerAlignment:    %li\n",
1085                p->hprops.minImportedHostPointerAlignment);
1086
1087     p->dev_is_nvidia = (p->props.properties.vendorID == 0x10de);
1088
1089     vkGetPhysicalDeviceQueueFamilyProperties(hwctx->phys_dev, &queue_num, NULL);
1090     if (!queue_num) {
1091         av_log(ctx, AV_LOG_ERROR, "Failed to get queues!\n");
1092         return AVERROR_EXTERNAL;
1093     }
1094
1095 #define CHECK_QUEUE(type, n)                                                         \
1096 if (n >= queue_num) {                                                                \
1097     av_log(ctx, AV_LOG_ERROR, "Invalid %s queue index %i (device has %i queues)!\n", \
1098            type, n, queue_num);                                                      \
1099     return AVERROR(EINVAL);                                                          \
1100 }
1101
1102     CHECK_QUEUE("graphics", hwctx->queue_family_index)
1103     CHECK_QUEUE("upload",   hwctx->queue_family_tx_index)
1104     CHECK_QUEUE("compute",  hwctx->queue_family_comp_index)
1105
1106 #undef CHECK_QUEUE
1107
1108     p->qfs[p->num_qfs++] = hwctx->queue_family_index;
1109     if ((hwctx->queue_family_tx_index != hwctx->queue_family_index) &&
1110         (hwctx->queue_family_tx_index != hwctx->queue_family_comp_index))
1111         p->qfs[p->num_qfs++] = hwctx->queue_family_tx_index;
1112     if ((hwctx->queue_family_comp_index != hwctx->queue_family_index) &&
1113         (hwctx->queue_family_comp_index != hwctx->queue_family_tx_index))
1114         p->qfs[p->num_qfs++] = hwctx->queue_family_comp_index;
1115
1116     /* Get device capabilities */
1117     vkGetPhysicalDeviceMemoryProperties(hwctx->phys_dev, &p->mprops);
1118
1119     return 0;
1120 }
1121
1122 static int vulkan_device_create(AVHWDeviceContext *ctx, const char *device,
1123                                 AVDictionary *opts, int flags)
1124 {
1125     VulkanDeviceSelection dev_select = { 0 };
1126     if (device && device[0]) {
1127         char *end = NULL;
1128         dev_select.index = strtol(device, &end, 10);
1129         if (end == device) {
1130             dev_select.index = 0;
1131             dev_select.name  = device;
1132         }
1133     }
1134
1135     return vulkan_device_create_internal(ctx, &dev_select, opts, flags);
1136 }
1137
1138 static int vulkan_device_derive(AVHWDeviceContext *ctx,
1139                                 AVHWDeviceContext *src_ctx,
1140                                 AVDictionary *opts, int flags)
1141 {
1142     av_unused VulkanDeviceSelection dev_select = { 0 };
1143
1144     /* If there's only one device on the system, then even if its not covered
1145      * by the following checks (e.g. non-PCIe ARM GPU), having an empty
1146      * dev_select will mean it'll get picked. */
1147     switch(src_ctx->type) {
1148 #if CONFIG_LIBDRM
1149 #if CONFIG_VAAPI
1150     case AV_HWDEVICE_TYPE_VAAPI: {
1151         AVVAAPIDeviceContext *src_hwctx = src_ctx->hwctx;
1152
1153         const char *vendor = vaQueryVendorString(src_hwctx->display);
1154         if (!vendor) {
1155             av_log(ctx, AV_LOG_ERROR, "Unable to get device info from VAAPI!\n");
1156             return AVERROR_EXTERNAL;
1157         }
1158
1159         if (strstr(vendor, "Intel"))
1160             dev_select.vendor_id = 0x8086;
1161         if (strstr(vendor, "AMD"))
1162             dev_select.vendor_id = 0x1002;
1163
1164         return vulkan_device_create_internal(ctx, &dev_select, opts, flags);
1165     }
1166 #endif
1167     case AV_HWDEVICE_TYPE_DRM: {
1168         AVDRMDeviceContext *src_hwctx = src_ctx->hwctx;
1169
1170         drmDevice *drm_dev_info;
1171         int err = drmGetDevice(src_hwctx->fd, &drm_dev_info);
1172         if (err) {
1173             av_log(ctx, AV_LOG_ERROR, "Unable to get device info from DRM fd!\n");
1174             return AVERROR_EXTERNAL;
1175         }
1176
1177         if (drm_dev_info->bustype == DRM_BUS_PCI)
1178             dev_select.pci_device = drm_dev_info->deviceinfo.pci->device_id;
1179
1180         drmFreeDevice(&drm_dev_info);
1181
1182         return vulkan_device_create_internal(ctx, &dev_select, opts, flags);
1183     }
1184 #endif
1185 #if CONFIG_CUDA
1186     case AV_HWDEVICE_TYPE_CUDA: {
1187         AVHWDeviceContext *cuda_cu = src_ctx;
1188         AVCUDADeviceContext *src_hwctx = src_ctx->hwctx;
1189         AVCUDADeviceContextInternal *cu_internal = src_hwctx->internal;
1190         CudaFunctions *cu = cu_internal->cuda_dl;
1191
1192         int ret = CHECK_CU(cu->cuDeviceGetUuid((CUuuid *)&dev_select.uuid,
1193                                                cu_internal->cuda_device));
1194         if (ret < 0) {
1195             av_log(ctx, AV_LOG_ERROR, "Unable to get UUID from CUDA!\n");
1196             return AVERROR_EXTERNAL;
1197         }
1198
1199         dev_select.has_uuid = 1;
1200
1201         return vulkan_device_create_internal(ctx, &dev_select, opts, flags);
1202     }
1203 #endif
1204     default:
1205         return AVERROR(ENOSYS);
1206     }
1207 }
1208
1209 static int vulkan_frames_get_constraints(AVHWDeviceContext *ctx,
1210                                          const void *hwconfig,
1211                                          AVHWFramesConstraints *constraints)
1212 {
1213     int count = 0;
1214     AVVulkanDeviceContext *hwctx = ctx->hwctx;
1215     VulkanDevicePriv *p = ctx->internal->priv;
1216
1217     for (enum AVPixelFormat i = 0; i < AV_PIX_FMT_NB; i++)
1218         count += pixfmt_is_supported(hwctx, i, p->use_linear_images);
1219
1220 #if CONFIG_CUDA
1221     if (p->dev_is_nvidia)
1222         count++;
1223 #endif
1224
1225     constraints->valid_sw_formats = av_malloc_array(count + 1,
1226                                                     sizeof(enum AVPixelFormat));
1227     if (!constraints->valid_sw_formats)
1228         return AVERROR(ENOMEM);
1229
1230     count = 0;
1231     for (enum AVPixelFormat i = 0; i < AV_PIX_FMT_NB; i++)
1232         if (pixfmt_is_supported(hwctx, i, p->use_linear_images))
1233             constraints->valid_sw_formats[count++] = i;
1234
1235 #if CONFIG_CUDA
1236     if (p->dev_is_nvidia)
1237         constraints->valid_sw_formats[count++] = AV_PIX_FMT_CUDA;
1238 #endif
1239     constraints->valid_sw_formats[count++] = AV_PIX_FMT_NONE;
1240
1241     constraints->min_width  = 0;
1242     constraints->min_height = 0;
1243     constraints->max_width  = p->props.properties.limits.maxImageDimension2D;
1244     constraints->max_height = p->props.properties.limits.maxImageDimension2D;
1245
1246     constraints->valid_hw_formats = av_malloc_array(2, sizeof(enum AVPixelFormat));
1247     if (!constraints->valid_hw_formats)
1248         return AVERROR(ENOMEM);
1249
1250     constraints->valid_hw_formats[0] = AV_PIX_FMT_VULKAN;
1251     constraints->valid_hw_formats[1] = AV_PIX_FMT_NONE;
1252
1253     return 0;
1254 }
1255
1256 static int alloc_mem(AVHWDeviceContext *ctx, VkMemoryRequirements *req,
1257                      VkMemoryPropertyFlagBits req_flags, const void *alloc_extension,
1258                      VkMemoryPropertyFlagBits *mem_flags, VkDeviceMemory *mem)
1259 {
1260     VkResult ret;
1261     int index = -1;
1262     VulkanDevicePriv *p = ctx->internal->priv;
1263     AVVulkanDeviceContext *dev_hwctx = ctx->hwctx;
1264     VkMemoryAllocateInfo alloc_info = {
1265         .sType          = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO,
1266         .pNext          = alloc_extension,
1267         .allocationSize = req->size,
1268     };
1269
1270     /* The vulkan spec requires memory types to be sorted in the "optimal"
1271      * order, so the first matching type we find will be the best/fastest one */
1272     for (int i = 0; i < p->mprops.memoryTypeCount; i++) {
1273         const VkMemoryType *type = &p->mprops.memoryTypes[i];
1274
1275         /* The memory type must be supported by the requirements (bitfield) */
1276         if (!(req->memoryTypeBits & (1 << i)))
1277             continue;
1278
1279         /* The memory type flags must include our properties */
1280         if ((type->propertyFlags & req_flags) != req_flags)
1281             continue;
1282
1283         /* The memory type must be large enough */
1284         if (req->size > p->mprops.memoryHeaps[type->heapIndex].size)
1285             continue;
1286
1287         /* Found a suitable memory type */
1288         index = i;
1289         break;
1290     }
1291
1292     if (index < 0) {
1293         av_log(ctx, AV_LOG_ERROR, "No memory type found for flags 0x%x\n",
1294                req_flags);
1295         return AVERROR(EINVAL);
1296     }
1297
1298     alloc_info.memoryTypeIndex = index;
1299
1300     ret = vkAllocateMemory(dev_hwctx->act_dev, &alloc_info,
1301                            dev_hwctx->alloc, mem);
1302     if (ret != VK_SUCCESS) {
1303         av_log(ctx, AV_LOG_ERROR, "Failed to allocate memory: %s\n",
1304                vk_ret2str(ret));
1305         return AVERROR(ENOMEM);
1306     }
1307
1308     *mem_flags |= p->mprops.memoryTypes[index].propertyFlags;
1309
1310     return 0;
1311 }
1312
1313 static void vulkan_free_internal(AVVkFrameInternal *internal)
1314 {
1315     if (!internal)
1316         return;
1317
1318 #if CONFIG_CUDA
1319     if (internal->cuda_fc_ref) {
1320         AVHWFramesContext *cuda_fc = (AVHWFramesContext *)internal->cuda_fc_ref->data;
1321         int planes = av_pix_fmt_count_planes(cuda_fc->sw_format);
1322         AVHWDeviceContext *cuda_cu = cuda_fc->device_ctx;
1323         AVCUDADeviceContext *cuda_dev = cuda_cu->hwctx;
1324         AVCUDADeviceContextInternal *cu_internal = cuda_dev->internal;
1325         CudaFunctions *cu = cu_internal->cuda_dl;
1326
1327         for (int i = 0; i < planes; i++) {
1328             if (internal->cu_sem[i])
1329                 CHECK_CU(cu->cuDestroyExternalSemaphore(internal->cu_sem[i]));
1330             if (internal->cu_mma[i])
1331                 CHECK_CU(cu->cuMipmappedArrayDestroy(internal->cu_mma[i]));
1332             if (internal->ext_mem[i])
1333                 CHECK_CU(cu->cuDestroyExternalMemory(internal->ext_mem[i]));
1334         }
1335
1336         av_buffer_unref(&internal->cuda_fc_ref);
1337     }
1338 #endif
1339
1340     av_free(internal);
1341 }
1342
1343 static void vulkan_frame_free(void *opaque, uint8_t *data)
1344 {
1345     AVVkFrame *f = (AVVkFrame *)data;
1346     AVHWFramesContext *hwfc = opaque;
1347     AVVulkanDeviceContext *hwctx = hwfc->device_ctx->hwctx;
1348     int planes = av_pix_fmt_count_planes(hwfc->sw_format);
1349
1350     vulkan_free_internal(f->internal);
1351
1352     for (int i = 0; i < planes; i++) {
1353         vkDestroyImage(hwctx->act_dev, f->img[i], hwctx->alloc);
1354         vkFreeMemory(hwctx->act_dev, f->mem[i], hwctx->alloc);
1355         vkDestroySemaphore(hwctx->act_dev, f->sem[i], hwctx->alloc);
1356     }
1357
1358     av_free(f);
1359 }
1360
1361 static int alloc_bind_mem(AVHWFramesContext *hwfc, AVVkFrame *f,
1362                           void *alloc_pnext, size_t alloc_pnext_stride)
1363 {
1364     int err;
1365     VkResult ret;
1366     AVHWDeviceContext *ctx = hwfc->device_ctx;
1367     VulkanDevicePriv *p = ctx->internal->priv;
1368     const int planes = av_pix_fmt_count_planes(hwfc->sw_format);
1369     VkBindImageMemoryInfo bind_info[AV_NUM_DATA_POINTERS] = { { 0 } };
1370
1371     AVVulkanDeviceContext *hwctx = ctx->hwctx;
1372
1373     for (int i = 0; i < planes; i++) {
1374         int use_ded_mem;
1375         VkImageMemoryRequirementsInfo2 req_desc = {
1376             .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_REQUIREMENTS_INFO_2,
1377             .image = f->img[i],
1378         };
1379         VkMemoryDedicatedAllocateInfo ded_alloc = {
1380             .sType = VK_STRUCTURE_TYPE_MEMORY_DEDICATED_ALLOCATE_INFO,
1381             .pNext = (void *)(((uint8_t *)alloc_pnext) + i*alloc_pnext_stride),
1382         };
1383         VkMemoryDedicatedRequirements ded_req = {
1384             .sType = VK_STRUCTURE_TYPE_MEMORY_DEDICATED_REQUIREMENTS,
1385         };
1386         VkMemoryRequirements2 req = {
1387             .sType = VK_STRUCTURE_TYPE_MEMORY_REQUIREMENTS_2,
1388             .pNext = &ded_req,
1389         };
1390
1391         vkGetImageMemoryRequirements2(hwctx->act_dev, &req_desc, &req);
1392
1393         if (f->tiling == VK_IMAGE_TILING_LINEAR)
1394             req.memoryRequirements.size = FFALIGN(req.memoryRequirements.size,
1395                                                   p->props.properties.limits.minMemoryMapAlignment);
1396
1397         /* In case the implementation prefers/requires dedicated allocation */
1398         use_ded_mem = ded_req.prefersDedicatedAllocation |
1399                       ded_req.requiresDedicatedAllocation;
1400         if (use_ded_mem)
1401             ded_alloc.image = f->img[i];
1402
1403         /* Allocate memory */
1404         if ((err = alloc_mem(ctx, &req.memoryRequirements,
1405                              f->tiling == VK_IMAGE_TILING_LINEAR ?
1406                              VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT :
1407                              VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT,
1408                              use_ded_mem ? &ded_alloc : (void *)ded_alloc.pNext,
1409                              &f->flags, &f->mem[i])))
1410             return err;
1411
1412         f->size[i] = req.memoryRequirements.size;
1413         bind_info[i].sType  = VK_STRUCTURE_TYPE_BIND_IMAGE_MEMORY_INFO;
1414         bind_info[i].image  = f->img[i];
1415         bind_info[i].memory = f->mem[i];
1416     }
1417
1418     /* Bind the allocated memory to the images */
1419     ret = vkBindImageMemory2(hwctx->act_dev, planes, bind_info);
1420     if (ret != VK_SUCCESS) {
1421         av_log(ctx, AV_LOG_ERROR, "Failed to bind memory: %s\n",
1422                vk_ret2str(ret));
1423         return AVERROR_EXTERNAL;
1424     }
1425
1426     return 0;
1427 }
1428
1429 enum PrepMode {
1430     PREP_MODE_WRITE,
1431     PREP_MODE_RO_SHADER,
1432     PREP_MODE_EXTERNAL_EXPORT,
1433 };
1434
1435 static int prepare_frame(AVHWFramesContext *hwfc, VulkanExecCtx *ectx,
1436                          AVVkFrame *frame, enum PrepMode pmode)
1437 {
1438     int err;
1439     uint32_t dst_qf;
1440     VkImageLayout new_layout;
1441     VkAccessFlags new_access;
1442     const int planes = av_pix_fmt_count_planes(hwfc->sw_format);
1443
1444     VkImageMemoryBarrier img_bar[AV_NUM_DATA_POINTERS] = { 0 };
1445
1446     VkSubmitInfo s_info = {
1447         .sType                = VK_STRUCTURE_TYPE_SUBMIT_INFO,
1448         .pSignalSemaphores    = frame->sem,
1449         .signalSemaphoreCount = planes,
1450     };
1451
1452     VkPipelineStageFlagBits wait_st[AV_NUM_DATA_POINTERS];
1453     for (int i = 0; i < planes; i++)
1454         wait_st[i] = VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT;
1455
1456     switch (pmode) {
1457     case PREP_MODE_WRITE:
1458         new_layout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
1459         new_access = VK_ACCESS_TRANSFER_WRITE_BIT;
1460         dst_qf     = VK_QUEUE_FAMILY_IGNORED;
1461         break;
1462     case PREP_MODE_RO_SHADER:
1463         new_layout = VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL;
1464         new_access = VK_ACCESS_TRANSFER_READ_BIT;
1465         dst_qf     = VK_QUEUE_FAMILY_IGNORED;
1466         break;
1467     case PREP_MODE_EXTERNAL_EXPORT:
1468         new_layout = VK_IMAGE_LAYOUT_GENERAL;
1469         new_access = VK_ACCESS_MEMORY_READ_BIT | VK_ACCESS_MEMORY_WRITE_BIT;
1470         dst_qf     = VK_QUEUE_FAMILY_EXTERNAL_KHR;
1471         s_info.pWaitSemaphores = frame->sem;
1472         s_info.pWaitDstStageMask = wait_st;
1473         s_info.waitSemaphoreCount = planes;
1474         break;
1475     }
1476
1477     if ((err = wait_start_exec_ctx(hwfc, ectx)))
1478         return err;
1479
1480     /* Change the image layout to something more optimal for writes.
1481      * This also signals the newly created semaphore, making it usable
1482      * for synchronization */
1483     for (int i = 0; i < planes; i++) {
1484         img_bar[i].sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
1485         img_bar[i].srcAccessMask = 0x0;
1486         img_bar[i].dstAccessMask = new_access;
1487         img_bar[i].oldLayout = frame->layout[i];
1488         img_bar[i].newLayout = new_layout;
1489         img_bar[i].srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
1490         img_bar[i].dstQueueFamilyIndex = dst_qf;
1491         img_bar[i].image = frame->img[i];
1492         img_bar[i].subresourceRange.levelCount = 1;
1493         img_bar[i].subresourceRange.layerCount = 1;
1494         img_bar[i].subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
1495
1496         frame->layout[i] = img_bar[i].newLayout;
1497         frame->access[i] = img_bar[i].dstAccessMask;
1498     }
1499
1500     vkCmdPipelineBarrier(get_buf_exec_ctx(hwfc, ectx),
1501                          VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
1502                          VK_PIPELINE_STAGE_TRANSFER_BIT,
1503                          0, 0, NULL, 0, NULL, planes, img_bar);
1504
1505     return submit_exec_ctx(hwfc, ectx, &s_info, 0);
1506 }
1507
1508 static int create_frame(AVHWFramesContext *hwfc, AVVkFrame **frame,
1509                         VkImageTiling tiling, VkImageUsageFlagBits usage,
1510                         void *create_pnext)
1511 {
1512     int err;
1513     VkResult ret;
1514     AVHWDeviceContext *ctx = hwfc->device_ctx;
1515     VulkanDevicePriv *p = ctx->internal->priv;
1516     AVVulkanDeviceContext *hwctx = ctx->hwctx;
1517     enum AVPixelFormat format = hwfc->sw_format;
1518     const VkFormat *img_fmts = av_vkfmt_from_pixfmt(format);
1519     const int planes = av_pix_fmt_count_planes(format);
1520
1521     VkExportSemaphoreCreateInfo ext_sem_info = {
1522         .sType = VK_STRUCTURE_TYPE_EXPORT_SEMAPHORE_CREATE_INFO,
1523         .handleTypes = VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_FD_BIT,
1524     };
1525
1526     VkSemaphoreCreateInfo sem_spawn = {
1527         .sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO,
1528         .pNext = p->extensions & EXT_EXTERNAL_FD_SEM ? &ext_sem_info : NULL,
1529     };
1530
1531     AVVkFrame *f = av_vk_frame_alloc();
1532     if (!f) {
1533         av_log(ctx, AV_LOG_ERROR, "Unable to allocate memory for AVVkFrame!\n");
1534         return AVERROR(ENOMEM);
1535     }
1536
1537     /* Create the images */
1538     for (int i = 0; i < planes; i++) {
1539         const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(format);
1540         int w = hwfc->width;
1541         int h = hwfc->height;
1542         const int p_w = i > 0 ? AV_CEIL_RSHIFT(w, desc->log2_chroma_w) : w;
1543         const int p_h = i > 0 ? AV_CEIL_RSHIFT(h, desc->log2_chroma_h) : h;
1544
1545         VkImageCreateInfo image_create_info = {
1546             .sType                 = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
1547             .pNext                 = create_pnext,
1548             .imageType             = VK_IMAGE_TYPE_2D,
1549             .format                = img_fmts[i],
1550             .extent.width          = p_w,
1551             .extent.height         = p_h,
1552             .extent.depth          = 1,
1553             .mipLevels             = 1,
1554             .arrayLayers           = 1,
1555             .flags                 = VK_IMAGE_CREATE_ALIAS_BIT,
1556             .tiling                = tiling,
1557             .initialLayout         = VK_IMAGE_LAYOUT_UNDEFINED,
1558             .usage                 = usage,
1559             .samples               = VK_SAMPLE_COUNT_1_BIT,
1560             .pQueueFamilyIndices   = p->qfs,
1561             .queueFamilyIndexCount = p->num_qfs,
1562             .sharingMode           = p->num_qfs > 1 ? VK_SHARING_MODE_CONCURRENT :
1563                                                       VK_SHARING_MODE_EXCLUSIVE,
1564         };
1565
1566         ret = vkCreateImage(hwctx->act_dev, &image_create_info,
1567                             hwctx->alloc, &f->img[i]);
1568         if (ret != VK_SUCCESS) {
1569             av_log(ctx, AV_LOG_ERROR, "Image creation failure: %s\n",
1570                    vk_ret2str(ret));
1571             err = AVERROR(EINVAL);
1572             goto fail;
1573         }
1574
1575         /* Create semaphore */
1576         ret = vkCreateSemaphore(hwctx->act_dev, &sem_spawn,
1577                                 hwctx->alloc, &f->sem[i]);
1578         if (ret != VK_SUCCESS) {
1579             av_log(hwctx, AV_LOG_ERROR, "Failed to create semaphore: %s\n",
1580                    vk_ret2str(ret));
1581             return AVERROR_EXTERNAL;
1582         }
1583
1584         f->layout[i] = image_create_info.initialLayout;
1585         f->access[i] = 0x0;
1586     }
1587
1588     f->flags     = 0x0;
1589     f->tiling    = tiling;
1590
1591     *frame = f;
1592     return 0;
1593
1594 fail:
1595     vulkan_frame_free(hwfc, (uint8_t *)f);
1596     return err;
1597 }
1598
1599 /* Checks if an export flag is enabled, and if it is ORs it with *iexp */
1600 static void try_export_flags(AVHWFramesContext *hwfc,
1601                              VkExternalMemoryHandleTypeFlags *comp_handle_types,
1602                              VkExternalMemoryHandleTypeFlagBits *iexp,
1603                              VkExternalMemoryHandleTypeFlagBits exp)
1604 {
1605     VkResult ret;
1606     AVVulkanFramesContext *hwctx = hwfc->hwctx;
1607     AVVulkanDeviceContext *dev_hwctx = hwfc->device_ctx->hwctx;
1608     VkExternalImageFormatProperties eprops = {
1609         .sType = VK_STRUCTURE_TYPE_EXTERNAL_IMAGE_FORMAT_PROPERTIES_KHR,
1610     };
1611     VkImageFormatProperties2 props = {
1612         .sType = VK_STRUCTURE_TYPE_IMAGE_FORMAT_PROPERTIES_2,
1613         .pNext = &eprops,
1614     };
1615     VkPhysicalDeviceExternalImageFormatInfo enext = {
1616         .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTERNAL_IMAGE_FORMAT_INFO,
1617         .handleType = exp,
1618     };
1619     VkPhysicalDeviceImageFormatInfo2 pinfo = {
1620         .sType  = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_IMAGE_FORMAT_INFO_2,
1621         .pNext  = !exp ? NULL : &enext,
1622         .format = av_vkfmt_from_pixfmt(hwfc->sw_format)[0],
1623         .type   = VK_IMAGE_TYPE_2D,
1624         .tiling = hwctx->tiling,
1625         .usage  = hwctx->usage,
1626         .flags  = VK_IMAGE_CREATE_ALIAS_BIT,
1627     };
1628
1629     ret = vkGetPhysicalDeviceImageFormatProperties2(dev_hwctx->phys_dev,
1630                                                     &pinfo, &props);
1631     if (ret == VK_SUCCESS) {
1632         *iexp |= exp;
1633         *comp_handle_types |= eprops.externalMemoryProperties.compatibleHandleTypes;
1634     }
1635 }
1636
1637 static AVBufferRef *vulkan_pool_alloc(void *opaque, int size)
1638 {
1639     int err;
1640     AVVkFrame *f;
1641     AVBufferRef *avbuf = NULL;
1642     AVHWFramesContext *hwfc = opaque;
1643     AVVulkanFramesContext *hwctx = hwfc->hwctx;
1644     VulkanDevicePriv *p = hwfc->device_ctx->internal->priv;
1645     VulkanFramesPriv *fp = hwfc->internal->priv;
1646     VkExportMemoryAllocateInfo eminfo[AV_NUM_DATA_POINTERS];
1647     VkExternalMemoryHandleTypeFlags e = 0x0;
1648
1649     VkExternalMemoryImageCreateInfo eiinfo = {
1650         .sType       = VK_STRUCTURE_TYPE_EXTERNAL_MEMORY_IMAGE_CREATE_INFO,
1651         .pNext       = hwctx->create_pnext,
1652     };
1653
1654     if (p->extensions & EXT_EXTERNAL_FD_MEMORY)
1655         try_export_flags(hwfc, &eiinfo.handleTypes, &e,
1656                          VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT);
1657
1658     if (p->extensions & EXT_EXTERNAL_DMABUF_MEMORY)
1659         try_export_flags(hwfc, &eiinfo.handleTypes, &e,
1660                          VK_EXTERNAL_MEMORY_HANDLE_TYPE_DMA_BUF_BIT_EXT);
1661
1662     for (int i = 0; i < av_pix_fmt_count_planes(hwfc->sw_format); i++) {
1663         eminfo[i].sType       = VK_STRUCTURE_TYPE_EXPORT_MEMORY_ALLOCATE_INFO;
1664         eminfo[i].pNext       = hwctx->alloc_pnext[i];
1665         eminfo[i].handleTypes = e;
1666     }
1667
1668     err = create_frame(hwfc, &f, hwctx->tiling, hwctx->usage,
1669                        eiinfo.handleTypes ? &eiinfo : NULL);
1670     if (err)
1671         return NULL;
1672
1673     err = alloc_bind_mem(hwfc, f, eminfo, sizeof(*eminfo));
1674     if (err)
1675         goto fail;
1676
1677     err = prepare_frame(hwfc, &fp->conv_ctx, f, PREP_MODE_WRITE);
1678     if (err)
1679         goto fail;
1680
1681     avbuf = av_buffer_create((uint8_t *)f, sizeof(AVVkFrame),
1682                              vulkan_frame_free, hwfc, 0);
1683     if (!avbuf)
1684         goto fail;
1685
1686     return avbuf;
1687
1688 fail:
1689     vulkan_frame_free(hwfc, (uint8_t *)f);
1690     return NULL;
1691 }
1692
1693 static void vulkan_frames_uninit(AVHWFramesContext *hwfc)
1694 {
1695     VulkanFramesPriv *fp = hwfc->internal->priv;
1696
1697     free_exec_ctx(hwfc, &fp->conv_ctx);
1698     free_exec_ctx(hwfc, &fp->upload_ctx);
1699     free_exec_ctx(hwfc, &fp->download_ctx);
1700 }
1701
1702 static int vulkan_frames_init(AVHWFramesContext *hwfc)
1703 {
1704     int err;
1705     AVVkFrame *f;
1706     AVVulkanFramesContext *hwctx = hwfc->hwctx;
1707     VulkanFramesPriv *fp = hwfc->internal->priv;
1708     AVVulkanDeviceContext *dev_hwctx = hwfc->device_ctx->hwctx;
1709     VulkanDevicePriv *p = hwfc->device_ctx->internal->priv;
1710
1711     /* Default pool flags */
1712     hwctx->tiling = hwctx->tiling ? hwctx->tiling : p->use_linear_images ?
1713                     VK_IMAGE_TILING_LINEAR : VK_IMAGE_TILING_OPTIMAL;
1714
1715     if (!hwctx->usage)
1716         hwctx->usage = DEFAULT_USAGE_FLAGS;
1717
1718     err = create_exec_ctx(hwfc, &fp->conv_ctx,
1719                           dev_hwctx->queue_family_comp_index,
1720                           GET_QUEUE_COUNT(dev_hwctx, 0, 1, 0));
1721     if (err)
1722         goto fail;
1723
1724     err = create_exec_ctx(hwfc, &fp->upload_ctx,
1725                           dev_hwctx->queue_family_tx_index,
1726                           GET_QUEUE_COUNT(dev_hwctx, 0, 0, 1));
1727     if (err)
1728         goto fail;
1729
1730     err = create_exec_ctx(hwfc, &fp->download_ctx,
1731                           dev_hwctx->queue_family_tx_index, 1);
1732     if (err)
1733         goto fail;
1734
1735     /* Test to see if allocation will fail */
1736     err = create_frame(hwfc, &f, hwctx->tiling, hwctx->usage,
1737                        hwctx->create_pnext);
1738     if (err)
1739         goto fail;
1740
1741     vulkan_frame_free(hwfc, (uint8_t *)f);
1742
1743     /* If user did not specify a pool, hwfc->pool will be set to the internal one
1744      * in hwcontext.c just after this gets called */
1745     if (!hwfc->pool) {
1746         hwfc->internal->pool_internal = av_buffer_pool_init2(sizeof(AVVkFrame),
1747                                                              hwfc, vulkan_pool_alloc,
1748                                                              NULL);
1749         if (!hwfc->internal->pool_internal) {
1750             err = AVERROR(ENOMEM);
1751             goto fail;
1752         }
1753     }
1754
1755     return 0;
1756
1757 fail:
1758     free_exec_ctx(hwfc, &fp->conv_ctx);
1759     free_exec_ctx(hwfc, &fp->upload_ctx);
1760     free_exec_ctx(hwfc, &fp->download_ctx);
1761
1762     return err;
1763 }
1764
1765 static int vulkan_get_buffer(AVHWFramesContext *hwfc, AVFrame *frame)
1766 {
1767     frame->buf[0] = av_buffer_pool_get(hwfc->pool);
1768     if (!frame->buf[0])
1769         return AVERROR(ENOMEM);
1770
1771     frame->data[0] = frame->buf[0]->data;
1772     frame->format  = AV_PIX_FMT_VULKAN;
1773     frame->width   = hwfc->width;
1774     frame->height  = hwfc->height;
1775
1776     return 0;
1777 }
1778
1779 static int vulkan_transfer_get_formats(AVHWFramesContext *hwfc,
1780                                        enum AVHWFrameTransferDirection dir,
1781                                        enum AVPixelFormat **formats)
1782 {
1783     enum AVPixelFormat *fmts = av_malloc_array(2, sizeof(*fmts));
1784     if (!fmts)
1785         return AVERROR(ENOMEM);
1786
1787     fmts[0] = hwfc->sw_format;
1788     fmts[1] = AV_PIX_FMT_NONE;
1789
1790     *formats = fmts;
1791     return 0;
1792 }
1793
1794 typedef struct VulkanMapping {
1795     AVVkFrame *frame;
1796     int flags;
1797 } VulkanMapping;
1798
1799 static void vulkan_unmap_frame(AVHWFramesContext *hwfc, HWMapDescriptor *hwmap)
1800 {
1801     VulkanMapping *map = hwmap->priv;
1802     AVVulkanDeviceContext *hwctx = hwfc->device_ctx->hwctx;
1803     const int planes = av_pix_fmt_count_planes(hwfc->sw_format);
1804
1805     /* Check if buffer needs flushing */
1806     if ((map->flags & AV_HWFRAME_MAP_WRITE) &&
1807         !(map->frame->flags & VK_MEMORY_PROPERTY_HOST_COHERENT_BIT)) {
1808         VkResult ret;
1809         VkMappedMemoryRange flush_ranges[AV_NUM_DATA_POINTERS] = { { 0 } };
1810
1811         for (int i = 0; i < planes; i++) {
1812             flush_ranges[i].sType  = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE;
1813             flush_ranges[i].memory = map->frame->mem[i];
1814             flush_ranges[i].size   = VK_WHOLE_SIZE;
1815         }
1816
1817         ret = vkFlushMappedMemoryRanges(hwctx->act_dev, planes,
1818                                         flush_ranges);
1819         if (ret != VK_SUCCESS) {
1820             av_log(hwfc, AV_LOG_ERROR, "Failed to flush memory: %s\n",
1821                    vk_ret2str(ret));
1822         }
1823     }
1824
1825     for (int i = 0; i < planes; i++)
1826         vkUnmapMemory(hwctx->act_dev, map->frame->mem[i]);
1827
1828     av_free(map);
1829 }
1830
1831 static int vulkan_map_frame_to_mem(AVHWFramesContext *hwfc, AVFrame *dst,
1832                                    const AVFrame *src, int flags)
1833 {
1834     VkResult ret;
1835     int err, mapped_mem_count = 0;
1836     AVVkFrame *f = (AVVkFrame *)src->data[0];
1837     AVVulkanDeviceContext *hwctx = hwfc->device_ctx->hwctx;
1838     const int planes = av_pix_fmt_count_planes(hwfc->sw_format);
1839
1840     VulkanMapping *map = av_mallocz(sizeof(VulkanMapping));
1841     if (!map)
1842         return AVERROR(EINVAL);
1843
1844     if (src->format != AV_PIX_FMT_VULKAN) {
1845         av_log(hwfc, AV_LOG_ERROR, "Cannot map from pixel format %s!\n",
1846                av_get_pix_fmt_name(src->format));
1847         err = AVERROR(EINVAL);
1848         goto fail;
1849     }
1850
1851     if (!(f->flags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) ||
1852         !(f->tiling == VK_IMAGE_TILING_LINEAR)) {
1853         av_log(hwfc, AV_LOG_ERROR, "Unable to map frame, not host visible "
1854                "and linear!\n");
1855         err = AVERROR(EINVAL);
1856         goto fail;
1857     }
1858
1859     dst->width  = src->width;
1860     dst->height = src->height;
1861
1862     for (int i = 0; i < planes; i++) {
1863         ret = vkMapMemory(hwctx->act_dev, f->mem[i], 0,
1864                           VK_WHOLE_SIZE, 0, (void **)&dst->data[i]);
1865         if (ret != VK_SUCCESS) {
1866             av_log(hwfc, AV_LOG_ERROR, "Failed to map image memory: %s\n",
1867                 vk_ret2str(ret));
1868             err = AVERROR_EXTERNAL;
1869             goto fail;
1870         }
1871         mapped_mem_count++;
1872     }
1873
1874     /* Check if the memory contents matter */
1875     if (((flags & AV_HWFRAME_MAP_READ) || !(flags & AV_HWFRAME_MAP_OVERWRITE)) &&
1876         !(f->flags & VK_MEMORY_PROPERTY_HOST_COHERENT_BIT)) {
1877         VkMappedMemoryRange map_mem_ranges[AV_NUM_DATA_POINTERS] = { { 0 } };
1878         for (int i = 0; i < planes; i++) {
1879             map_mem_ranges[i].sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE;
1880             map_mem_ranges[i].size = VK_WHOLE_SIZE;
1881             map_mem_ranges[i].memory = f->mem[i];
1882         }
1883
1884         ret = vkInvalidateMappedMemoryRanges(hwctx->act_dev, planes,
1885                                              map_mem_ranges);
1886         if (ret != VK_SUCCESS) {
1887             av_log(hwfc, AV_LOG_ERROR, "Failed to invalidate memory: %s\n",
1888                    vk_ret2str(ret));
1889             err = AVERROR_EXTERNAL;
1890             goto fail;
1891         }
1892     }
1893
1894     for (int i = 0; i < planes; i++) {
1895         VkImageSubresource sub = {
1896             .aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
1897         };
1898         VkSubresourceLayout layout;
1899         vkGetImageSubresourceLayout(hwctx->act_dev, f->img[i], &sub, &layout);
1900         dst->linesize[i] = layout.rowPitch;
1901     }
1902
1903     map->frame = f;
1904     map->flags = flags;
1905
1906     err = ff_hwframe_map_create(src->hw_frames_ctx, dst, src,
1907                                 &vulkan_unmap_frame, map);
1908     if (err < 0)
1909         goto fail;
1910
1911     return 0;
1912
1913 fail:
1914     for (int i = 0; i < mapped_mem_count; i++)
1915         vkUnmapMemory(hwctx->act_dev, f->mem[i]);
1916
1917     av_free(map);
1918     return err;
1919 }
1920
1921 #if CONFIG_LIBDRM
1922 static void vulkan_unmap_from(AVHWFramesContext *hwfc, HWMapDescriptor *hwmap)
1923 {
1924     VulkanMapping *map = hwmap->priv;
1925     AVVulkanDeviceContext *hwctx = hwfc->device_ctx->hwctx;
1926     const int planes = av_pix_fmt_count_planes(hwfc->sw_format);
1927
1928     for (int i = 0; i < planes; i++) {
1929         vkDestroyImage(hwctx->act_dev, map->frame->img[i], hwctx->alloc);
1930         vkFreeMemory(hwctx->act_dev, map->frame->mem[i], hwctx->alloc);
1931         vkDestroySemaphore(hwctx->act_dev, map->frame->sem[i], hwctx->alloc);
1932     }
1933
1934     av_freep(&map->frame);
1935 }
1936
1937 static const struct {
1938     uint32_t drm_fourcc;
1939     VkFormat vk_format;
1940 } vulkan_drm_format_map[] = {
1941     { DRM_FORMAT_R8,       VK_FORMAT_R8_UNORM       },
1942     { DRM_FORMAT_R16,      VK_FORMAT_R16_UNORM      },
1943     { DRM_FORMAT_GR88,     VK_FORMAT_R8G8_UNORM     },
1944     { DRM_FORMAT_RG88,     VK_FORMAT_R8G8_UNORM     },
1945     { DRM_FORMAT_GR1616,   VK_FORMAT_R16G16_UNORM   },
1946     { DRM_FORMAT_RG1616,   VK_FORMAT_R16G16_UNORM   },
1947     { DRM_FORMAT_ARGB8888, VK_FORMAT_B8G8R8A8_UNORM },
1948     { DRM_FORMAT_XRGB8888, VK_FORMAT_B8G8R8A8_UNORM },
1949     { DRM_FORMAT_ABGR8888, VK_FORMAT_R8G8B8A8_UNORM },
1950     { DRM_FORMAT_XBGR8888, VK_FORMAT_R8G8B8A8_UNORM },
1951 };
1952
1953 static inline VkFormat drm_to_vulkan_fmt(uint32_t drm_fourcc)
1954 {
1955     for (int i = 0; i < FF_ARRAY_ELEMS(vulkan_drm_format_map); i++)
1956         if (vulkan_drm_format_map[i].drm_fourcc == drm_fourcc)
1957             return vulkan_drm_format_map[i].vk_format;
1958     return VK_FORMAT_UNDEFINED;
1959 }
1960
1961 static int vulkan_map_from_drm_frame_desc(AVHWFramesContext *hwfc, AVVkFrame **frame,
1962                                           AVDRMFrameDescriptor *desc)
1963 {
1964     int err = 0;
1965     VkResult ret;
1966     AVVkFrame *f;
1967     int bind_counts = 0;
1968     AVHWDeviceContext *ctx = hwfc->device_ctx;
1969     AVVulkanDeviceContext *hwctx = ctx->hwctx;
1970     VulkanDevicePriv *p = ctx->internal->priv;
1971     VulkanFramesPriv *fp = hwfc->internal->priv;
1972     AVVulkanFramesContext *frames_hwctx = hwfc->hwctx;
1973     const AVPixFmtDescriptor *fmt_desc = av_pix_fmt_desc_get(hwfc->sw_format);
1974     const int has_modifiers = !!(p->extensions & EXT_DRM_MODIFIER_FLAGS);
1975     VkSubresourceLayout plane_data[AV_NUM_DATA_POINTERS] = { 0 };
1976     VkBindImageMemoryInfo bind_info[AV_NUM_DATA_POINTERS] = { 0 };
1977     VkBindImagePlaneMemoryInfo plane_info[AV_NUM_DATA_POINTERS] = { 0 };
1978     VkExternalMemoryHandleTypeFlagBits htype = VK_EXTERNAL_MEMORY_HANDLE_TYPE_DMA_BUF_BIT_EXT;
1979
1980     VK_LOAD_PFN(hwctx->inst, vkGetMemoryFdPropertiesKHR);
1981
1982     for (int i = 0; i < desc->nb_layers; i++) {
1983         if (drm_to_vulkan_fmt(desc->layers[i].format) == VK_FORMAT_UNDEFINED) {
1984             av_log(ctx, AV_LOG_ERROR, "Unsupported DMABUF layer format %#08x!\n",
1985                    desc->layers[i].format);
1986             return AVERROR(EINVAL);
1987         }
1988     }
1989
1990     if (!(f = av_vk_frame_alloc())) {
1991         av_log(ctx, AV_LOG_ERROR, "Unable to allocate memory for AVVkFrame!\n");
1992         err = AVERROR(ENOMEM);
1993         goto fail;
1994     }
1995
1996     f->tiling = has_modifiers ? VK_IMAGE_TILING_DRM_FORMAT_MODIFIER_EXT :
1997                 desc->objects[0].format_modifier == DRM_FORMAT_MOD_LINEAR ?
1998                 VK_IMAGE_TILING_LINEAR : VK_IMAGE_TILING_OPTIMAL;
1999
2000     for (int i = 0; i < desc->nb_layers; i++) {
2001         const int planes = desc->layers[i].nb_planes;
2002         VkImageDrmFormatModifierExplicitCreateInfoEXT drm_info = {
2003             .sType = VK_STRUCTURE_TYPE_IMAGE_DRM_FORMAT_MODIFIER_EXPLICIT_CREATE_INFO_EXT,
2004             .drmFormatModifier = desc->objects[0].format_modifier,
2005             .drmFormatModifierPlaneCount = planes,
2006             .pPlaneLayouts = (const VkSubresourceLayout *)&plane_data,
2007         };
2008
2009         VkExternalMemoryImageCreateInfo einfo = {
2010             .sType       = VK_STRUCTURE_TYPE_EXTERNAL_MEMORY_IMAGE_CREATE_INFO,
2011             .pNext       = has_modifiers ? &drm_info : NULL,
2012             .handleTypes = htype,
2013         };
2014
2015         VkSemaphoreCreateInfo sem_spawn = {
2016             .sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO,
2017         };
2018
2019         const int p_w = i > 0 ? AV_CEIL_RSHIFT(hwfc->width, fmt_desc->log2_chroma_w) : hwfc->width;
2020         const int p_h = i > 0 ? AV_CEIL_RSHIFT(hwfc->height, fmt_desc->log2_chroma_h) : hwfc->height;
2021
2022         VkImageCreateInfo image_create_info = {
2023             .sType                 = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
2024             .pNext                 = &einfo,
2025             .imageType             = VK_IMAGE_TYPE_2D,
2026             .format                = drm_to_vulkan_fmt(desc->layers[i].format),
2027             .extent.width          = p_w,
2028             .extent.height         = p_h,
2029             .extent.depth          = 1,
2030             .mipLevels             = 1,
2031             .arrayLayers           = 1,
2032             .flags                 = VK_IMAGE_CREATE_ALIAS_BIT,
2033             .tiling                = f->tiling,
2034             .initialLayout         = VK_IMAGE_LAYOUT_UNDEFINED, /* specs say so */
2035             .usage                 = frames_hwctx->usage,
2036             .samples               = VK_SAMPLE_COUNT_1_BIT,
2037             .pQueueFamilyIndices   = p->qfs,
2038             .queueFamilyIndexCount = p->num_qfs,
2039             .sharingMode           = p->num_qfs > 1 ? VK_SHARING_MODE_CONCURRENT :
2040                                                       VK_SHARING_MODE_EXCLUSIVE,
2041         };
2042
2043         for (int j = 0; j < planes; j++) {
2044             plane_data[j].offset     = desc->layers[i].planes[j].offset;
2045             plane_data[j].rowPitch   = desc->layers[i].planes[j].pitch;
2046             plane_data[j].size       = 0; /* The specs say so for all 3 */
2047             plane_data[j].arrayPitch = 0;
2048             plane_data[j].depthPitch = 0;
2049         }
2050
2051         /* Create image */
2052         ret = vkCreateImage(hwctx->act_dev, &image_create_info,
2053                             hwctx->alloc, &f->img[i]);
2054         if (ret != VK_SUCCESS) {
2055             av_log(ctx, AV_LOG_ERROR, "Image creation failure: %s\n",
2056                    vk_ret2str(ret));
2057             err = AVERROR(EINVAL);
2058             goto fail;
2059         }
2060
2061         ret = vkCreateSemaphore(hwctx->act_dev, &sem_spawn,
2062                                 hwctx->alloc, &f->sem[i]);
2063         if (ret != VK_SUCCESS) {
2064             av_log(hwctx, AV_LOG_ERROR, "Failed to create semaphore: %s\n",
2065                    vk_ret2str(ret));
2066             return AVERROR_EXTERNAL;
2067         }
2068
2069         /* We'd import a semaphore onto the one we created using
2070          * vkImportSemaphoreFdKHR but unfortunately neither DRM nor VAAPI
2071          * offer us anything we could import and sync with, so instead
2072          * just signal the semaphore we created. */
2073
2074         f->layout[i] = image_create_info.initialLayout;
2075         f->access[i] = 0x0;
2076     }
2077
2078     for (int i = 0; i < desc->nb_objects; i++) {
2079         int use_ded_mem = 0;
2080         VkMemoryFdPropertiesKHR fdmp = {
2081             .sType = VK_STRUCTURE_TYPE_MEMORY_FD_PROPERTIES_KHR,
2082         };
2083         VkMemoryRequirements req = {
2084             .size = desc->objects[i].size,
2085         };
2086         VkImportMemoryFdInfoKHR idesc = {
2087             .sType      = VK_STRUCTURE_TYPE_IMPORT_MEMORY_FD_INFO_KHR,
2088             .handleType = htype,
2089             .fd         = dup(desc->objects[i].fd),
2090         };
2091         VkMemoryDedicatedAllocateInfo ded_alloc = {
2092             .sType = VK_STRUCTURE_TYPE_MEMORY_DEDICATED_ALLOCATE_INFO,
2093             .pNext = &idesc,
2094         };
2095
2096         ret = pfn_vkGetMemoryFdPropertiesKHR(hwctx->act_dev, htype,
2097                                              idesc.fd, &fdmp);
2098         if (ret != VK_SUCCESS) {
2099             av_log(hwfc, AV_LOG_ERROR, "Failed to get FD properties: %s\n",
2100                    vk_ret2str(ret));
2101             err = AVERROR_EXTERNAL;
2102             close(idesc.fd);
2103             goto fail;
2104         }
2105
2106         req.memoryTypeBits = fdmp.memoryTypeBits;
2107
2108         /* Dedicated allocation only makes sense if there's a one to one mapping
2109          * between images and the memory backing them, so only check in this
2110          * case. */
2111         if (desc->nb_layers == desc->nb_objects) {
2112             VkImageMemoryRequirementsInfo2 req_desc = {
2113                 .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_REQUIREMENTS_INFO_2,
2114                 .image = f->img[i],
2115             };
2116             VkMemoryDedicatedRequirements ded_req = {
2117                 .sType = VK_STRUCTURE_TYPE_MEMORY_DEDICATED_REQUIREMENTS,
2118             };
2119             VkMemoryRequirements2 req2 = {
2120                 .sType = VK_STRUCTURE_TYPE_MEMORY_REQUIREMENTS_2,
2121                 .pNext = &ded_req,
2122             };
2123
2124             vkGetImageMemoryRequirements2(hwctx->act_dev, &req_desc, &req2);
2125
2126             use_ded_mem = ded_req.prefersDedicatedAllocation |
2127                           ded_req.requiresDedicatedAllocation;
2128             if (use_ded_mem)
2129                 ded_alloc.image = f->img[i];
2130         }
2131
2132         err = alloc_mem(ctx, &req, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT,
2133                         use_ded_mem ? &ded_alloc : ded_alloc.pNext,
2134                         &f->flags, &f->mem[i]);
2135         if (err) {
2136             close(idesc.fd);
2137             return err;
2138         }
2139
2140         f->size[i] = desc->objects[i].size;
2141     }
2142
2143     for (int i = 0; i < desc->nb_layers; i++) {
2144         const int planes = desc->layers[i].nb_planes;
2145         const int signal_p = has_modifiers && (planes > 1);
2146         for (int j = 0; j < planes; j++) {
2147             VkImageAspectFlagBits aspect = j == 0 ? VK_IMAGE_ASPECT_MEMORY_PLANE_0_BIT_EXT :
2148                                            j == 1 ? VK_IMAGE_ASPECT_MEMORY_PLANE_1_BIT_EXT :
2149                                                     VK_IMAGE_ASPECT_MEMORY_PLANE_2_BIT_EXT;
2150
2151             plane_info[bind_counts].sType = VK_STRUCTURE_TYPE_BIND_IMAGE_PLANE_MEMORY_INFO;
2152             plane_info[bind_counts].planeAspect = aspect;
2153
2154             bind_info[bind_counts].sType  = VK_STRUCTURE_TYPE_BIND_IMAGE_MEMORY_INFO;
2155             bind_info[bind_counts].pNext  = signal_p ? &plane_info[bind_counts] : NULL;
2156             bind_info[bind_counts].image  = f->img[i];
2157             bind_info[bind_counts].memory = f->mem[desc->layers[i].planes[j].object_index];
2158             bind_info[bind_counts].memoryOffset = desc->layers[i].planes[j].offset;
2159             bind_counts++;
2160         }
2161     }
2162
2163     /* Bind the allocated memory to the images */
2164     ret = vkBindImageMemory2(hwctx->act_dev, bind_counts, bind_info);
2165     if (ret != VK_SUCCESS) {
2166         av_log(ctx, AV_LOG_ERROR, "Failed to bind memory: %s\n",
2167                vk_ret2str(ret));
2168         return AVERROR_EXTERNAL;
2169     }
2170
2171     /* NOTE: This is completely uneccesary and unneeded once we can import
2172      * semaphores from DRM. Otherwise we have to activate the semaphores.
2173      * We're reusing the exec context that's also used for uploads/downloads. */
2174     err = prepare_frame(hwfc, &fp->conv_ctx, f, PREP_MODE_RO_SHADER);
2175     if (err)
2176         goto fail;
2177
2178     *frame = f;
2179
2180     return 0;
2181
2182 fail:
2183     for (int i = 0; i < desc->nb_layers; i++) {
2184         vkDestroyImage(hwctx->act_dev, f->img[i], hwctx->alloc);
2185         vkDestroySemaphore(hwctx->act_dev, f->sem[i], hwctx->alloc);
2186     }
2187     for (int i = 0; i < desc->nb_objects; i++)
2188         vkFreeMemory(hwctx->act_dev, f->mem[i], hwctx->alloc);
2189
2190     av_free(f);
2191
2192     return err;
2193 }
2194
2195 static int vulkan_map_from_drm(AVHWFramesContext *hwfc, AVFrame *dst,
2196                                const AVFrame *src, int flags)
2197 {
2198     int err = 0;
2199     AVVkFrame *f;
2200     VulkanMapping *map = NULL;
2201
2202     err = vulkan_map_from_drm_frame_desc(hwfc, &f,
2203                                          (AVDRMFrameDescriptor *)src->data[0]);
2204     if (err)
2205         return err;
2206
2207     /* The unmapping function will free this */
2208     dst->data[0] = (uint8_t *)f;
2209     dst->width   = src->width;
2210     dst->height  = src->height;
2211
2212     map = av_mallocz(sizeof(VulkanMapping));
2213     if (!map)
2214         goto fail;
2215
2216     map->frame = f;
2217     map->flags = flags;
2218
2219     err = ff_hwframe_map_create(dst->hw_frames_ctx, dst, src,
2220                                 &vulkan_unmap_from, map);
2221     if (err < 0)
2222         goto fail;
2223
2224     av_log(hwfc, AV_LOG_DEBUG, "Mapped DRM object to Vulkan!\n");
2225
2226     return 0;
2227
2228 fail:
2229     vulkan_frame_free(hwfc->device_ctx->hwctx, (uint8_t *)f);
2230     av_free(map);
2231     return err;
2232 }
2233
2234 #if CONFIG_VAAPI
2235 static int vulkan_map_from_vaapi(AVHWFramesContext *dst_fc,
2236                                  AVFrame *dst, const AVFrame *src,
2237                                  int flags)
2238 {
2239     int err;
2240     AVFrame *tmp = av_frame_alloc();
2241     AVHWFramesContext *vaapi_fc = (AVHWFramesContext*)src->hw_frames_ctx->data;
2242     AVVAAPIDeviceContext *vaapi_ctx = vaapi_fc->device_ctx->hwctx;
2243     VASurfaceID surface_id = (VASurfaceID)(uintptr_t)src->data[3];
2244
2245     if (!tmp)
2246         return AVERROR(ENOMEM);
2247
2248     /* We have to sync since like the previous comment said, no semaphores */
2249     vaSyncSurface(vaapi_ctx->display, surface_id);
2250
2251     tmp->format = AV_PIX_FMT_DRM_PRIME;
2252
2253     err = av_hwframe_map(tmp, src, flags);
2254     if (err < 0)
2255         goto fail;
2256
2257     err = vulkan_map_from_drm(dst_fc, dst, tmp, flags);
2258     if (err < 0)
2259         goto fail;
2260
2261     err = ff_hwframe_map_replace(dst, src);
2262
2263 fail:
2264     av_frame_free(&tmp);
2265     return err;
2266 }
2267 #endif
2268 #endif
2269
2270 #if CONFIG_CUDA
2271 static int vulkan_export_to_cuda(AVHWFramesContext *hwfc,
2272                                  AVBufferRef *cuda_hwfc,
2273                                  const AVFrame *frame)
2274 {
2275     int err;
2276     VkResult ret;
2277     AVVkFrame *dst_f;
2278     AVVkFrameInternal *dst_int;
2279     AVHWDeviceContext *ctx = hwfc->device_ctx;
2280     AVVulkanDeviceContext *hwctx = ctx->hwctx;
2281     const int planes = av_pix_fmt_count_planes(hwfc->sw_format);
2282     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(hwfc->sw_format);
2283     VK_LOAD_PFN(hwctx->inst, vkGetMemoryFdKHR);
2284     VK_LOAD_PFN(hwctx->inst, vkGetSemaphoreFdKHR);
2285
2286     AVHWFramesContext *cuda_fc = (AVHWFramesContext*)cuda_hwfc->data;
2287     AVHWDeviceContext *cuda_cu = cuda_fc->device_ctx;
2288     AVCUDADeviceContext *cuda_dev = cuda_cu->hwctx;
2289     AVCUDADeviceContextInternal *cu_internal = cuda_dev->internal;
2290     CudaFunctions *cu = cu_internal->cuda_dl;
2291     CUarray_format cufmt = desc->comp[0].depth > 8 ? CU_AD_FORMAT_UNSIGNED_INT16 :
2292                                                      CU_AD_FORMAT_UNSIGNED_INT8;
2293
2294     dst_f = (AVVkFrame *)frame->data[0];
2295
2296     dst_int = dst_f->internal;
2297     if (!dst_int || !dst_int->cuda_fc_ref) {
2298         if (!dst_f->internal)
2299             dst_f->internal = dst_int = av_mallocz(sizeof(*dst_f->internal));
2300
2301         if (!dst_int) {
2302             err = AVERROR(ENOMEM);
2303             goto fail;
2304         }
2305
2306         dst_int->cuda_fc_ref = av_buffer_ref(cuda_hwfc);
2307         if (!dst_int->cuda_fc_ref) {
2308             err = AVERROR(ENOMEM);
2309             goto fail;
2310         }
2311
2312         for (int i = 0; i < planes; i++) {
2313             CUDA_EXTERNAL_MEMORY_MIPMAPPED_ARRAY_DESC tex_desc = {
2314                 .offset = 0,
2315                 .arrayDesc = {
2316                     .Width  = i > 0 ? AV_CEIL_RSHIFT(hwfc->width, desc->log2_chroma_w)
2317                                     : hwfc->width,
2318                     .Height = i > 0 ? AV_CEIL_RSHIFT(hwfc->height, desc->log2_chroma_h)
2319                                     : hwfc->height,
2320                     .Depth = 0,
2321                     .Format = cufmt,
2322                     .NumChannels = 1 + ((planes == 2) && i),
2323                     .Flags = 0,
2324                 },
2325                 .numLevels = 1,
2326             };
2327             CUDA_EXTERNAL_MEMORY_HANDLE_DESC ext_desc = {
2328                 .type = CU_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD,
2329                 .size = dst_f->size[i],
2330             };
2331             VkMemoryGetFdInfoKHR export_info = {
2332                 .sType      = VK_STRUCTURE_TYPE_MEMORY_GET_FD_INFO_KHR,
2333                 .memory     = dst_f->mem[i],
2334                 .handleType = VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT_KHR,
2335             };
2336             VkSemaphoreGetFdInfoKHR sem_export = {
2337                 .sType = VK_STRUCTURE_TYPE_SEMAPHORE_GET_FD_INFO_KHR,
2338                 .semaphore = dst_f->sem[i],
2339                 .handleType = VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_FD_BIT,
2340             };
2341             CUDA_EXTERNAL_SEMAPHORE_HANDLE_DESC ext_sem_desc = {
2342                 .type = CU_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_FD,
2343             };
2344
2345             ret = pfn_vkGetMemoryFdKHR(hwctx->act_dev, &export_info,
2346                                        &ext_desc.handle.fd);
2347             if (ret != VK_SUCCESS) {
2348                 av_log(hwfc, AV_LOG_ERROR, "Unable to export the image as a FD!\n");
2349                 err = AVERROR_EXTERNAL;
2350                 goto fail;
2351             }
2352
2353             ret = CHECK_CU(cu->cuImportExternalMemory(&dst_int->ext_mem[i], &ext_desc));
2354             if (ret < 0) {
2355                 err = AVERROR_EXTERNAL;
2356                 goto fail;
2357             }
2358
2359             ret = CHECK_CU(cu->cuExternalMemoryGetMappedMipmappedArray(&dst_int->cu_mma[i],
2360                                                                        dst_int->ext_mem[i],
2361                                                                        &tex_desc));
2362             if (ret < 0) {
2363                 err = AVERROR_EXTERNAL;
2364                 goto fail;
2365             }
2366
2367             ret = CHECK_CU(cu->cuMipmappedArrayGetLevel(&dst_int->cu_array[i],
2368                                                         dst_int->cu_mma[i], 0));
2369             if (ret < 0) {
2370                 err = AVERROR_EXTERNAL;
2371                 goto fail;
2372             }
2373
2374             ret = pfn_vkGetSemaphoreFdKHR(hwctx->act_dev, &sem_export,
2375                                           &ext_sem_desc.handle.fd);
2376             if (ret != VK_SUCCESS) {
2377                 av_log(ctx, AV_LOG_ERROR, "Failed to export semaphore: %s\n",
2378                        vk_ret2str(ret));
2379                 err = AVERROR_EXTERNAL;
2380                 goto fail;
2381             }
2382
2383             ret = CHECK_CU(cu->cuImportExternalSemaphore(&dst_int->cu_sem[i],
2384                                                          &ext_sem_desc));
2385             if (ret < 0) {
2386                 err = AVERROR_EXTERNAL;
2387                 goto fail;
2388             }
2389         }
2390     }
2391
2392     return 0;
2393
2394 fail:
2395     return err;
2396 }
2397
2398 static int vulkan_transfer_data_from_cuda(AVHWFramesContext *hwfc,
2399                                           AVFrame *dst, const AVFrame *src)
2400 {
2401     int err;
2402     VkResult ret;
2403     CUcontext dummy;
2404     AVVkFrame *dst_f;
2405     AVVkFrameInternal *dst_int;
2406     const int planes = av_pix_fmt_count_planes(hwfc->sw_format);
2407     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(hwfc->sw_format);
2408
2409     AVHWFramesContext *cuda_fc = (AVHWFramesContext*)src->hw_frames_ctx->data;
2410     AVHWDeviceContext *cuda_cu = cuda_fc->device_ctx;
2411     AVCUDADeviceContext *cuda_dev = cuda_cu->hwctx;
2412     AVCUDADeviceContextInternal *cu_internal = cuda_dev->internal;
2413     CudaFunctions *cu = cu_internal->cuda_dl;
2414     CUDA_EXTERNAL_SEMAPHORE_WAIT_PARAMS s_w_par[AV_NUM_DATA_POINTERS] = { 0 };
2415     CUDA_EXTERNAL_SEMAPHORE_SIGNAL_PARAMS s_s_par[AV_NUM_DATA_POINTERS] = { 0 };
2416
2417     ret = CHECK_CU(cu->cuCtxPushCurrent(cuda_dev->cuda_ctx));
2418     if (ret < 0)
2419         return AVERROR_EXTERNAL;
2420
2421     dst_f = (AVVkFrame *)dst->data[0];
2422
2423     ret = vulkan_export_to_cuda(hwfc, src->hw_frames_ctx, dst);
2424     if (ret < 0) {
2425         CHECK_CU(cu->cuCtxPopCurrent(&dummy));
2426         return ret;
2427     }
2428
2429     dst_int = dst_f->internal;
2430
2431     ret = CHECK_CU(cu->cuWaitExternalSemaphoresAsync(dst_int->cu_sem, s_w_par,
2432                                                      planes, cuda_dev->stream));
2433     if (ret < 0) {
2434         err = AVERROR_EXTERNAL;
2435         goto fail;
2436     }
2437
2438     for (int i = 0; i < planes; i++) {
2439         CUDA_MEMCPY2D cpy = {
2440             .srcMemoryType = CU_MEMORYTYPE_DEVICE,
2441             .srcDevice     = (CUdeviceptr)src->data[i],
2442             .srcPitch      = src->linesize[i],
2443             .srcY          = 0,
2444
2445             .dstMemoryType = CU_MEMORYTYPE_ARRAY,
2446             .dstArray      = dst_int->cu_array[i],
2447             .WidthInBytes  = (i > 0 ? AV_CEIL_RSHIFT(hwfc->width, desc->log2_chroma_w)
2448                                     : hwfc->width) * desc->comp[i].step,
2449             .Height        = i > 0 ? AV_CEIL_RSHIFT(hwfc->height, desc->log2_chroma_h)
2450                                    : hwfc->height,
2451         };
2452
2453         ret = CHECK_CU(cu->cuMemcpy2DAsync(&cpy, cuda_dev->stream));
2454         if (ret < 0) {
2455             err = AVERROR_EXTERNAL;
2456             goto fail;
2457         }
2458     }
2459
2460     ret = CHECK_CU(cu->cuSignalExternalSemaphoresAsync(dst_int->cu_sem, s_s_par,
2461                                                        planes, cuda_dev->stream));
2462     if (ret < 0) {
2463         err = AVERROR_EXTERNAL;
2464         goto fail;
2465     }
2466
2467     CHECK_CU(cu->cuCtxPopCurrent(&dummy));
2468
2469     av_log(hwfc, AV_LOG_VERBOSE, "Transfered CUDA image to Vulkan!\n");
2470
2471     return 0;
2472
2473 fail:
2474     CHECK_CU(cu->cuCtxPopCurrent(&dummy));
2475     vulkan_free_internal(dst_int);
2476     dst_f->internal = NULL;
2477     av_buffer_unref(&dst->buf[0]);
2478     return err;
2479 }
2480 #endif
2481
2482 static int vulkan_map_to(AVHWFramesContext *hwfc, AVFrame *dst,
2483                          const AVFrame *src, int flags)
2484 {
2485     av_unused VulkanDevicePriv *p = hwfc->device_ctx->internal->priv;
2486
2487     switch (src->format) {
2488 #if CONFIG_LIBDRM
2489 #if CONFIG_VAAPI
2490     case AV_PIX_FMT_VAAPI:
2491         if (p->extensions & EXT_EXTERNAL_DMABUF_MEMORY)
2492             return vulkan_map_from_vaapi(hwfc, dst, src, flags);
2493 #endif
2494     case AV_PIX_FMT_DRM_PRIME:
2495         if (p->extensions & EXT_EXTERNAL_DMABUF_MEMORY)
2496             return vulkan_map_from_drm(hwfc, dst, src, flags);
2497 #endif
2498     default:
2499         return AVERROR(ENOSYS);
2500     }
2501 }
2502
2503 #if CONFIG_LIBDRM
2504 typedef struct VulkanDRMMapping {
2505     AVDRMFrameDescriptor drm_desc;
2506     AVVkFrame *source;
2507 } VulkanDRMMapping;
2508
2509 static void vulkan_unmap_to_drm(AVHWFramesContext *hwfc, HWMapDescriptor *hwmap)
2510 {
2511     AVDRMFrameDescriptor *drm_desc = hwmap->priv;
2512
2513     for (int i = 0; i < drm_desc->nb_objects; i++)
2514         close(drm_desc->objects[i].fd);
2515
2516     av_free(drm_desc);
2517 }
2518
2519 static inline uint32_t vulkan_fmt_to_drm(VkFormat vkfmt)
2520 {
2521     for (int i = 0; i < FF_ARRAY_ELEMS(vulkan_drm_format_map); i++)
2522         if (vulkan_drm_format_map[i].vk_format == vkfmt)
2523             return vulkan_drm_format_map[i].drm_fourcc;
2524     return DRM_FORMAT_INVALID;
2525 }
2526
2527 static int vulkan_map_to_drm(AVHWFramesContext *hwfc, AVFrame *dst,
2528                              const AVFrame *src, int flags)
2529 {
2530     int err = 0;
2531     VkResult ret;
2532     AVVkFrame *f = (AVVkFrame *)src->data[0];
2533     VulkanDevicePriv *p = hwfc->device_ctx->internal->priv;
2534     VulkanFramesPriv *fp = hwfc->internal->priv;
2535     AVVulkanDeviceContext *hwctx = hwfc->device_ctx->hwctx;
2536     const int planes = av_pix_fmt_count_planes(hwfc->sw_format);
2537     VK_LOAD_PFN(hwctx->inst, vkGetMemoryFdKHR);
2538     VkImageDrmFormatModifierPropertiesEXT drm_mod = {
2539         .sType = VK_STRUCTURE_TYPE_IMAGE_DRM_FORMAT_MODIFIER_PROPERTIES_EXT,
2540     };
2541
2542     AVDRMFrameDescriptor *drm_desc = av_mallocz(sizeof(*drm_desc));
2543     if (!drm_desc)
2544         return AVERROR(ENOMEM);
2545
2546     err = prepare_frame(hwfc, &fp->conv_ctx, f, PREP_MODE_EXTERNAL_EXPORT);
2547     if (err < 0)
2548         goto end;
2549
2550     err = ff_hwframe_map_create(src->hw_frames_ctx, dst, src, &vulkan_unmap_to_drm, drm_desc);
2551     if (err < 0)
2552         goto end;
2553
2554     if (p->extensions & EXT_DRM_MODIFIER_FLAGS) {
2555         VK_LOAD_PFN(hwctx->inst, vkGetImageDrmFormatModifierPropertiesEXT);
2556         ret = pfn_vkGetImageDrmFormatModifierPropertiesEXT(hwctx->act_dev, f->img[0],
2557                                                            &drm_mod);
2558         if (ret != VK_SUCCESS) {
2559             av_log(hwfc, AV_LOG_ERROR, "Failed to retrieve DRM format modifier!\n");
2560             err = AVERROR_EXTERNAL;
2561             goto end;
2562         }
2563     }
2564
2565     for (int i = 0; (i < planes) && (f->mem[i]); i++) {
2566         VkMemoryGetFdInfoKHR export_info = {
2567             .sType      = VK_STRUCTURE_TYPE_MEMORY_GET_FD_INFO_KHR,
2568             .memory     = f->mem[i],
2569             .handleType = VK_EXTERNAL_MEMORY_HANDLE_TYPE_DMA_BUF_BIT_EXT,
2570         };
2571
2572         ret = pfn_vkGetMemoryFdKHR(hwctx->act_dev, &export_info,
2573                                    &drm_desc->objects[i].fd);
2574         if (ret != VK_SUCCESS) {
2575             av_log(hwfc, AV_LOG_ERROR, "Unable to export the image as a FD!\n");
2576             err = AVERROR_EXTERNAL;
2577             goto end;
2578         }
2579
2580         drm_desc->nb_objects++;
2581         drm_desc->objects[i].size = f->size[i];
2582         drm_desc->objects[i].format_modifier = drm_mod.drmFormatModifier;
2583     }
2584
2585     drm_desc->nb_layers = planes;
2586     for (int i = 0; i < drm_desc->nb_layers; i++) {
2587         VkSubresourceLayout layout;
2588         VkImageSubresource sub = {
2589             .aspectMask = p->extensions & EXT_DRM_MODIFIER_FLAGS ?
2590                           VK_IMAGE_ASPECT_MEMORY_PLANE_0_BIT_EXT :
2591                           VK_IMAGE_ASPECT_COLOR_BIT,
2592         };
2593         VkFormat plane_vkfmt = av_vkfmt_from_pixfmt(hwfc->sw_format)[i];
2594
2595         drm_desc->layers[i].format    = vulkan_fmt_to_drm(plane_vkfmt);
2596         drm_desc->layers[i].nb_planes = 1;
2597
2598         if (drm_desc->layers[i].format == DRM_FORMAT_INVALID) {
2599             av_log(hwfc, AV_LOG_ERROR, "Cannot map to DRM layer, unsupported!\n");
2600             err = AVERROR_PATCHWELCOME;
2601             goto end;
2602         }
2603
2604         drm_desc->layers[i].planes[0].object_index = FFMIN(i, drm_desc->nb_objects - 1);
2605
2606         if (f->tiling == VK_IMAGE_TILING_OPTIMAL)
2607             continue;
2608
2609         vkGetImageSubresourceLayout(hwctx->act_dev, f->img[i], &sub, &layout);
2610         drm_desc->layers[i].planes[0].offset       = layout.offset;
2611         drm_desc->layers[i].planes[0].pitch        = layout.rowPitch;
2612     }
2613
2614     dst->width   = src->width;
2615     dst->height  = src->height;
2616     dst->data[0] = (uint8_t *)drm_desc;
2617
2618     av_log(hwfc, AV_LOG_VERBOSE, "Mapped AVVkFrame to a DRM object!\n");
2619
2620     return 0;
2621
2622 end:
2623     av_free(drm_desc);
2624     return err;
2625 }
2626
2627 #if CONFIG_VAAPI
2628 static int vulkan_map_to_vaapi(AVHWFramesContext *hwfc, AVFrame *dst,
2629                                const AVFrame *src, int flags)
2630 {
2631     int err;
2632     AVFrame *tmp = av_frame_alloc();
2633     if (!tmp)
2634         return AVERROR(ENOMEM);
2635
2636     tmp->format = AV_PIX_FMT_DRM_PRIME;
2637
2638     err = vulkan_map_to_drm(hwfc, tmp, src, flags);
2639     if (err < 0)
2640         goto fail;
2641
2642     err = av_hwframe_map(dst, tmp, flags);
2643     if (err < 0)
2644         goto fail;
2645
2646     err = ff_hwframe_map_replace(dst, src);
2647
2648 fail:
2649     av_frame_free(&tmp);
2650     return err;
2651 }
2652 #endif
2653 #endif
2654
2655 static int vulkan_map_from(AVHWFramesContext *hwfc, AVFrame *dst,
2656                            const AVFrame *src, int flags)
2657 {
2658     av_unused VulkanDevicePriv *p = hwfc->device_ctx->internal->priv;
2659
2660     switch (dst->format) {
2661 #if CONFIG_LIBDRM
2662     case AV_PIX_FMT_DRM_PRIME:
2663         if (p->extensions & EXT_EXTERNAL_DMABUF_MEMORY)
2664             return vulkan_map_to_drm(hwfc, dst, src, flags);
2665 #if CONFIG_VAAPI
2666     case AV_PIX_FMT_VAAPI:
2667         if (p->extensions & EXT_EXTERNAL_DMABUF_MEMORY)
2668             return vulkan_map_to_vaapi(hwfc, dst, src, flags);
2669 #endif
2670 #endif
2671     default:
2672         return vulkan_map_frame_to_mem(hwfc, dst, src, flags);
2673     }
2674 }
2675
2676 typedef struct ImageBuffer {
2677     VkBuffer buf;
2678     VkDeviceMemory mem;
2679     VkMemoryPropertyFlagBits flags;
2680     int mapped_mem;
2681 } ImageBuffer;
2682
2683 static void free_buf(void *opaque, uint8_t *data)
2684 {
2685     AVHWDeviceContext *ctx = opaque;
2686     AVVulkanDeviceContext *hwctx = ctx->hwctx;
2687     ImageBuffer *vkbuf = (ImageBuffer *)data;
2688
2689     if (vkbuf->buf)
2690         vkDestroyBuffer(hwctx->act_dev, vkbuf->buf, hwctx->alloc);
2691     if (vkbuf->mem)
2692         vkFreeMemory(hwctx->act_dev, vkbuf->mem, hwctx->alloc);
2693
2694     av_free(data);
2695 }
2696
2697 static int create_buf(AVHWDeviceContext *ctx, AVBufferRef **buf, size_t imp_size,
2698                       int height, int *stride, VkBufferUsageFlags usage,
2699                       VkMemoryPropertyFlagBits flags, void *create_pnext,
2700                       void *alloc_pnext)
2701 {
2702     int err;
2703     VkResult ret;
2704     int use_ded_mem;
2705     AVVulkanDeviceContext *hwctx = ctx->hwctx;
2706     VulkanDevicePriv *p = ctx->internal->priv;
2707
2708     VkBufferCreateInfo buf_spawn = {
2709         .sType       = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,
2710         .pNext       = create_pnext,
2711         .usage       = usage,
2712         .sharingMode = VK_SHARING_MODE_EXCLUSIVE,
2713     };
2714
2715     VkBufferMemoryRequirementsInfo2 req_desc = {
2716         .sType = VK_STRUCTURE_TYPE_BUFFER_MEMORY_REQUIREMENTS_INFO_2,
2717     };
2718     VkMemoryDedicatedAllocateInfo ded_alloc = {
2719         .sType = VK_STRUCTURE_TYPE_MEMORY_DEDICATED_ALLOCATE_INFO,
2720         .pNext = alloc_pnext,
2721     };
2722     VkMemoryDedicatedRequirements ded_req = {
2723         .sType = VK_STRUCTURE_TYPE_MEMORY_DEDICATED_REQUIREMENTS,
2724     };
2725     VkMemoryRequirements2 req = {
2726         .sType = VK_STRUCTURE_TYPE_MEMORY_REQUIREMENTS_2,
2727         .pNext = &ded_req,
2728     };
2729
2730     ImageBuffer *vkbuf = av_mallocz(sizeof(*vkbuf));
2731     if (!vkbuf)
2732         return AVERROR(ENOMEM);
2733
2734     vkbuf->mapped_mem = !!imp_size;
2735
2736     if (!vkbuf->mapped_mem) {
2737         *stride = FFALIGN(*stride, p->props.properties.limits.optimalBufferCopyRowPitchAlignment);
2738         buf_spawn.size = height*(*stride);
2739         buf_spawn.size = FFALIGN(buf_spawn.size, p->props.properties.limits.minMemoryMapAlignment);
2740     } else {
2741         buf_spawn.size = imp_size;
2742     }
2743
2744     ret = vkCreateBuffer(hwctx->act_dev, &buf_spawn, NULL, &vkbuf->buf);
2745     if (ret != VK_SUCCESS) {
2746         av_log(ctx, AV_LOG_ERROR, "Failed to create buffer: %s\n",
2747                vk_ret2str(ret));
2748         return AVERROR_EXTERNAL;
2749     }
2750
2751     req_desc.buffer = vkbuf->buf;
2752
2753     vkGetBufferMemoryRequirements2(hwctx->act_dev, &req_desc, &req);
2754
2755     /* In case the implementation prefers/requires dedicated allocation */
2756     use_ded_mem = ded_req.prefersDedicatedAllocation |
2757                   ded_req.requiresDedicatedAllocation;
2758     if (use_ded_mem)
2759         ded_alloc.buffer = vkbuf->buf;
2760
2761     err = alloc_mem(ctx, &req.memoryRequirements, flags,
2762                     use_ded_mem ? &ded_alloc : (void *)ded_alloc.pNext,
2763                     &vkbuf->flags, &vkbuf->mem);
2764     if (err)
2765         return err;
2766
2767     ret = vkBindBufferMemory(hwctx->act_dev, vkbuf->buf, vkbuf->mem, 0);
2768     if (ret != VK_SUCCESS) {
2769         av_log(ctx, AV_LOG_ERROR, "Failed to bind memory to buffer: %s\n",
2770                vk_ret2str(ret));
2771         free_buf(ctx, (uint8_t *)vkbuf);
2772         return AVERROR_EXTERNAL;
2773     }
2774
2775     *buf = av_buffer_create((uint8_t *)vkbuf, sizeof(*vkbuf), free_buf, ctx, 0);
2776     if (!(*buf)) {
2777         free_buf(ctx, (uint8_t *)vkbuf);
2778         return AVERROR(ENOMEM);
2779     }
2780
2781     return 0;
2782 }
2783
2784 /* Skips mapping of host mapped buffers but still invalidates them */
2785 static int map_buffers(AVHWDeviceContext *ctx, AVBufferRef **bufs, uint8_t *mem[],
2786                        int nb_buffers, int invalidate)
2787 {
2788     VkResult ret;
2789     AVVulkanDeviceContext *hwctx = ctx->hwctx;
2790     VkMappedMemoryRange invalidate_ctx[AV_NUM_DATA_POINTERS];
2791     int invalidate_count = 0;
2792
2793     for (int i = 0; i < nb_buffers; i++) {
2794         ImageBuffer *vkbuf = (ImageBuffer *)bufs[i]->data;
2795         if (vkbuf->mapped_mem)
2796             continue;
2797
2798         ret = vkMapMemory(hwctx->act_dev, vkbuf->mem, 0,
2799                           VK_WHOLE_SIZE, 0, (void **)&mem[i]);
2800         if (ret != VK_SUCCESS) {
2801             av_log(ctx, AV_LOG_ERROR, "Failed to map buffer memory: %s\n",
2802                    vk_ret2str(ret));
2803             return AVERROR_EXTERNAL;
2804         }
2805     }
2806
2807     if (!invalidate)
2808         return 0;
2809
2810     for (int i = 0; i < nb_buffers; i++) {
2811         ImageBuffer *vkbuf = (ImageBuffer *)bufs[i]->data;
2812         const VkMappedMemoryRange ival_buf = {
2813             .sType  = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE,
2814             .memory = vkbuf->mem,
2815             .size   = VK_WHOLE_SIZE,
2816         };
2817         if (vkbuf->flags & VK_MEMORY_PROPERTY_HOST_COHERENT_BIT)
2818             continue;
2819         invalidate_ctx[invalidate_count++] = ival_buf;
2820     }
2821
2822     if (invalidate_count) {
2823         ret = vkInvalidateMappedMemoryRanges(hwctx->act_dev, invalidate_count,
2824                                              invalidate_ctx);
2825         if (ret != VK_SUCCESS)
2826             av_log(ctx, AV_LOG_WARNING, "Failed to invalidate memory: %s\n",
2827                    vk_ret2str(ret));
2828     }
2829
2830     return 0;
2831 }
2832
2833 static int unmap_buffers(AVHWDeviceContext *ctx, AVBufferRef **bufs,
2834                          int nb_buffers, int flush)
2835 {
2836     int err = 0;
2837     VkResult ret;
2838     AVVulkanDeviceContext *hwctx = ctx->hwctx;
2839     VkMappedMemoryRange flush_ctx[AV_NUM_DATA_POINTERS];
2840     int flush_count = 0;
2841
2842     if (flush) {
2843         for (int i = 0; i < nb_buffers; i++) {
2844             ImageBuffer *vkbuf = (ImageBuffer *)bufs[i]->data;
2845             const VkMappedMemoryRange flush_buf = {
2846                 .sType  = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE,
2847                 .memory = vkbuf->mem,
2848                 .size   = VK_WHOLE_SIZE,
2849             };
2850             if (vkbuf->flags & VK_MEMORY_PROPERTY_HOST_COHERENT_BIT)
2851                 continue;
2852             flush_ctx[flush_count++] = flush_buf;
2853         }
2854     }
2855
2856     if (flush_count) {
2857         ret = vkFlushMappedMemoryRanges(hwctx->act_dev, flush_count, flush_ctx);
2858         if (ret != VK_SUCCESS) {
2859             av_log(ctx, AV_LOG_ERROR, "Failed to flush memory: %s\n",
2860                     vk_ret2str(ret));
2861             err = AVERROR_EXTERNAL; /* We still want to try to unmap them */
2862         }
2863     }
2864
2865     for (int i = 0; i < nb_buffers; i++) {
2866         ImageBuffer *vkbuf = (ImageBuffer *)bufs[i]->data;
2867         if (vkbuf->mapped_mem)
2868             continue;
2869
2870         vkUnmapMemory(hwctx->act_dev, vkbuf->mem);
2871     }
2872
2873     return err;
2874 }
2875
2876 static int transfer_image_buf(AVHWFramesContext *hwfc, const AVFrame *f,
2877                               AVBufferRef **bufs, const int *buf_stride, int w,
2878                               int h, enum AVPixelFormat pix_fmt, int to_buf)
2879 {
2880     int err;
2881     AVVkFrame *frame = (AVVkFrame *)f->data[0];
2882     VulkanFramesPriv *fp = hwfc->internal->priv;
2883
2884     int bar_num = 0;
2885     VkPipelineStageFlagBits sem_wait_dst[AV_NUM_DATA_POINTERS];
2886
2887     const int planes = av_pix_fmt_count_planes(pix_fmt);
2888     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
2889
2890     VkImageMemoryBarrier img_bar[AV_NUM_DATA_POINTERS] = { 0 };
2891     VulkanExecCtx *ectx = to_buf ? &fp->download_ctx : &fp->upload_ctx;
2892     VkCommandBuffer cmd_buf = get_buf_exec_ctx(hwfc, ectx);
2893
2894     VkSubmitInfo s_info = {
2895         .sType                = VK_STRUCTURE_TYPE_SUBMIT_INFO,
2896         .pSignalSemaphores    = frame->sem,
2897         .pWaitSemaphores      = frame->sem,
2898         .pWaitDstStageMask    = sem_wait_dst,
2899         .signalSemaphoreCount = planes,
2900         .waitSemaphoreCount   = planes,
2901     };
2902
2903     if ((err = wait_start_exec_ctx(hwfc, ectx)))
2904         return err;
2905
2906     /* Change the image layout to something more optimal for transfers */
2907     for (int i = 0; i < planes; i++) {
2908         VkImageLayout new_layout = to_buf ? VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL :
2909                                             VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
2910         VkAccessFlags new_access = to_buf ? VK_ACCESS_TRANSFER_READ_BIT :
2911                                             VK_ACCESS_TRANSFER_WRITE_BIT;
2912
2913         sem_wait_dst[i] = VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT;
2914
2915         /* If the layout matches and we have read access skip the barrier */
2916         if ((frame->layout[i] == new_layout) && (frame->access[i] & new_access))
2917             continue;
2918
2919         img_bar[bar_num].sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
2920         img_bar[bar_num].srcAccessMask = 0x0;
2921         img_bar[bar_num].dstAccessMask = new_access;
2922         img_bar[bar_num].oldLayout = frame->layout[i];
2923         img_bar[bar_num].newLayout = new_layout;
2924         img_bar[bar_num].srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
2925         img_bar[bar_num].dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
2926         img_bar[bar_num].image = frame->img[i];
2927         img_bar[bar_num].subresourceRange.levelCount = 1;
2928         img_bar[bar_num].subresourceRange.layerCount = 1;
2929         img_bar[bar_num].subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
2930
2931         frame->layout[i] = img_bar[bar_num].newLayout;
2932         frame->access[i] = img_bar[bar_num].dstAccessMask;
2933
2934         bar_num++;
2935     }
2936
2937     if (bar_num)
2938         vkCmdPipelineBarrier(cmd_buf, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
2939                              VK_PIPELINE_STAGE_TRANSFER_BIT, 0,
2940                              0, NULL, 0, NULL, bar_num, img_bar);
2941
2942     /* Schedule a copy for each plane */
2943     for (int i = 0; i < planes; i++) {
2944         ImageBuffer *vkbuf = (ImageBuffer *)bufs[i]->data;
2945         const int p_w = i > 0 ? AV_CEIL_RSHIFT(w, desc->log2_chroma_w) : w;
2946         const int p_h = i > 0 ? AV_CEIL_RSHIFT(h, desc->log2_chroma_h) : h;
2947         VkBufferImageCopy buf_reg = {
2948             .bufferOffset = 0,
2949             /* Buffer stride isn't in bytes, it's in samples, the implementation
2950              * uses the image's VkFormat to know how many bytes per sample
2951              * the buffer has. So we have to convert by dividing. Stupid.
2952              * Won't work with YUVA or other planar formats with alpha. */
2953             .bufferRowLength = buf_stride[i] / desc->comp[i].step,
2954             .bufferImageHeight = p_h,
2955             .imageSubresource.layerCount = 1,
2956             .imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
2957             .imageOffset = { 0, 0, 0, },
2958             .imageExtent = { p_w, p_h, 1, },
2959         };
2960
2961         if (to_buf)
2962             vkCmdCopyImageToBuffer(cmd_buf, frame->img[i], frame->layout[i],
2963                                    vkbuf->buf, 1, &buf_reg);
2964         else
2965             vkCmdCopyBufferToImage(cmd_buf, vkbuf->buf, frame->img[i],
2966                                    frame->layout[i], 1, &buf_reg);
2967     }
2968
2969     /* When uploading, do this asynchronously if the source is refcounted by
2970      * keeping the buffers as a submission dependency.
2971      * The hwcontext is guaranteed to not be freed until all frames are freed
2972      * in the frames_unint function.
2973      * When downloading to buffer, do this synchronously and wait for the
2974      * queue submission to finish executing */
2975     if (!to_buf) {
2976         int ref;
2977         for (ref = 0; ref < AV_NUM_DATA_POINTERS; ref++) {
2978             if (!f->buf[ref])
2979                 break;
2980             if ((err = add_buf_dep_exec_ctx(hwfc, ectx, &f->buf[ref], 1)))
2981                 return err;
2982         }
2983         if (ref && (err = add_buf_dep_exec_ctx(hwfc, ectx, bufs, planes)))
2984             return err;
2985         return submit_exec_ctx(hwfc, ectx, &s_info, !ref);
2986     } else {
2987         return submit_exec_ctx(hwfc, ectx, &s_info,    1);
2988     }
2989 }
2990
2991 static int vulkan_transfer_data(AVHWFramesContext *hwfc, const AVFrame *vkf,
2992                                 const AVFrame *swf, int from)
2993 {
2994     int err = 0;
2995     AVVkFrame *f = (AVVkFrame *)vkf->data[0];
2996     AVHWDeviceContext *dev_ctx = hwfc->device_ctx;
2997     VulkanDevicePriv *p = hwfc->device_ctx->internal->priv;
2998
2999     AVFrame tmp;
3000     AVBufferRef *bufs[AV_NUM_DATA_POINTERS] = { 0 };
3001
3002     const int planes = av_pix_fmt_count_planes(swf->format);
3003     int log2_chroma = av_pix_fmt_desc_get(swf->format)->log2_chroma_h;
3004
3005     int host_mapped[AV_NUM_DATA_POINTERS] = { 0 };
3006     const int map_host = !!(p->extensions & EXT_EXTERNAL_HOST_MEMORY);
3007
3008     if ((swf->format != AV_PIX_FMT_NONE && !av_vkfmt_from_pixfmt(swf->format))) {
3009         av_log(hwfc, AV_LOG_ERROR, "Unsupported software frame pixel format!\n");
3010         return AVERROR(EINVAL);
3011     }
3012
3013     if (swf->width > hwfc->width || swf->height > hwfc->height)
3014         return AVERROR(EINVAL);
3015
3016     /* For linear, host visiable images */
3017     if (f->tiling == VK_IMAGE_TILING_LINEAR &&
3018         f->flags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) {
3019         AVFrame *map = av_frame_alloc();
3020         if (!map)
3021             return AVERROR(ENOMEM);
3022         map->format = swf->format;
3023
3024         err = vulkan_map_frame_to_mem(hwfc, map, vkf, AV_HWFRAME_MAP_WRITE);
3025         if (err)
3026             return err;
3027
3028         err = av_frame_copy((AVFrame *)(from ? swf : map), from ? map : swf);
3029         av_frame_free(&map);
3030         return err;
3031     }
3032
3033     /* Create buffers */
3034     for (int i = 0; i < planes; i++) {
3035         int h = swf->height;
3036         int p_height = i > 0 ? AV_CEIL_RSHIFT(h, log2_chroma) : h;
3037         size_t p_size = FFALIGN(FFABS(swf->linesize[i]) * p_height,
3038                                 p->hprops.minImportedHostPointerAlignment);
3039
3040         VkExternalMemoryBufferCreateInfo create_desc = {
3041             .sType = VK_STRUCTURE_TYPE_EXTERNAL_MEMORY_BUFFER_CREATE_INFO,
3042             .handleTypes = VK_EXTERNAL_MEMORY_HANDLE_TYPE_HOST_ALLOCATION_BIT_EXT,
3043         };
3044
3045         VkImportMemoryHostPointerInfoEXT import_desc = {
3046             .sType = VK_STRUCTURE_TYPE_IMPORT_MEMORY_HOST_POINTER_INFO_EXT,
3047             .handleType = VK_EXTERNAL_MEMORY_HANDLE_TYPE_HOST_ALLOCATION_BIT_EXT,
3048             .pHostPointer = swf->data[i],
3049         };
3050
3051         /* We can only map images with positive stride and alignment appropriate
3052          * for the device. */
3053         host_mapped[i] = map_host && swf->linesize[i] > 0 &&
3054                          !(((uintptr_t)import_desc.pHostPointer) %
3055                            p->hprops.minImportedHostPointerAlignment);
3056         p_size = host_mapped[i] ? p_size : 0;
3057
3058         tmp.linesize[i] = FFABS(swf->linesize[i]);
3059         err = create_buf(dev_ctx, &bufs[i], p_size, p_height, &tmp.linesize[i],
3060                          from ? VK_BUFFER_USAGE_TRANSFER_DST_BIT :
3061                                 VK_BUFFER_USAGE_TRANSFER_SRC_BIT,
3062                          VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT,
3063                          host_mapped[i] ? &create_desc : NULL,
3064                          host_mapped[i] ? &import_desc : NULL);
3065         if (err)
3066             goto end;
3067     }
3068
3069     if (!from) {
3070         /* Map, copy image to buffer, unmap */
3071         if ((err = map_buffers(dev_ctx, bufs, tmp.data, planes, 0)))
3072             goto end;
3073
3074         for (int i = 0; i < planes; i++) {
3075             int h = swf->height;
3076             int p_height = i > 0 ? AV_CEIL_RSHIFT(h, log2_chroma) : h;
3077
3078             if (host_mapped[i])
3079                 continue;
3080
3081             av_image_copy_plane(tmp.data[i], tmp.linesize[i],
3082                                 (const uint8_t *)swf->data[i], swf->linesize[i],
3083                                 FFMIN(tmp.linesize[i], FFABS(swf->linesize[i])),
3084                                 p_height);
3085         }
3086
3087         if ((err = unmap_buffers(dev_ctx, bufs, planes, 1)))
3088             goto end;
3089     }
3090
3091     /* Copy buffers into/from image */
3092     err = transfer_image_buf(hwfc, vkf, bufs, tmp.linesize,
3093                              swf->width, swf->height, swf->format, from);
3094
3095     if (from) {
3096         /* Map, copy image to buffer, unmap */
3097         if ((err = map_buffers(dev_ctx, bufs, tmp.data, planes, 0)))
3098             goto end;
3099
3100         for (int i = 0; i < planes; i++) {
3101             int h = swf->height;
3102             int p_height = i > 0 ? AV_CEIL_RSHIFT(h, log2_chroma) : h;
3103
3104             if (host_mapped[i])
3105                 continue;
3106
3107             av_image_copy_plane(swf->data[i], swf->linesize[i],
3108                                 (const uint8_t *)tmp.data[i], tmp.linesize[i],
3109                                 FFMIN(tmp.linesize[i], FFABS(swf->linesize[i])),
3110                                 p_height);
3111         }
3112
3113         if ((err = unmap_buffers(dev_ctx, bufs, planes, 1)))
3114             goto end;
3115     }
3116
3117 end:
3118     for (int i = 0; i < planes; i++)
3119         av_buffer_unref(&bufs[i]);
3120
3121     return err;
3122 }
3123
3124 static int vulkan_transfer_data_to(AVHWFramesContext *hwfc, AVFrame *dst,
3125                                    const AVFrame *src)
3126 {
3127     av_unused VulkanDevicePriv *p = hwfc->device_ctx->internal->priv;
3128
3129     switch (src->format) {
3130 #if CONFIG_CUDA
3131     case AV_PIX_FMT_CUDA:
3132         if ((p->extensions & EXT_EXTERNAL_FD_MEMORY) &&
3133             (p->extensions & EXT_EXTERNAL_FD_SEM))
3134             return vulkan_transfer_data_from_cuda(hwfc, dst, src);
3135 #endif
3136     default:
3137         if (src->hw_frames_ctx)
3138             return AVERROR(ENOSYS);
3139         else
3140             return vulkan_transfer_data(hwfc, dst, src, 0);
3141     }
3142 }
3143
3144 #if CONFIG_CUDA
3145 static int vulkan_transfer_data_to_cuda(AVHWFramesContext *hwfc, AVFrame *dst,
3146                                         const AVFrame *src)
3147 {
3148     int err;
3149     VkResult ret;
3150     CUcontext dummy;
3151     AVVkFrame *dst_f;
3152     AVVkFrameInternal *dst_int;
3153     const int planes = av_pix_fmt_count_planes(hwfc->sw_format);
3154     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(hwfc->sw_format);
3155
3156     AVHWFramesContext *cuda_fc = (AVHWFramesContext*)dst->hw_frames_ctx->data;
3157     AVHWDeviceContext *cuda_cu = cuda_fc->device_ctx;
3158     AVCUDADeviceContext *cuda_dev = cuda_cu->hwctx;
3159     AVCUDADeviceContextInternal *cu_internal = cuda_dev->internal;
3160     CudaFunctions *cu = cu_internal->cuda_dl;
3161
3162     ret = CHECK_CU(cu->cuCtxPushCurrent(cuda_dev->cuda_ctx));
3163     if (ret < 0)
3164         return AVERROR_EXTERNAL;
3165
3166     dst_f = (AVVkFrame *)src->data[0];
3167
3168     err = vulkan_export_to_cuda(hwfc, dst->hw_frames_ctx, src);
3169     if (err < 0) {
3170         CHECK_CU(cu->cuCtxPopCurrent(&dummy));
3171         return err;
3172     }
3173
3174     dst_int = dst_f->internal;
3175
3176     for (int i = 0; i < planes; i++) {
3177         CUDA_MEMCPY2D cpy = {
3178             .dstMemoryType = CU_MEMORYTYPE_DEVICE,
3179             .dstDevice     = (CUdeviceptr)dst->data[i],
3180             .dstPitch      = dst->linesize[i],
3181             .dstY          = 0,
3182
3183             .srcMemoryType = CU_MEMORYTYPE_ARRAY,
3184             .srcArray      = dst_int->cu_array[i],
3185             .WidthInBytes  = (i > 0 ? AV_CEIL_RSHIFT(hwfc->width, desc->log2_chroma_w)
3186                                     : hwfc->width) * desc->comp[i].step,
3187             .Height        = i > 0 ? AV_CEIL_RSHIFT(hwfc->height, desc->log2_chroma_h)
3188                                    : hwfc->height,
3189         };
3190
3191         ret = CHECK_CU(cu->cuMemcpy2DAsync(&cpy, cuda_dev->stream));
3192         if (ret < 0) {
3193             err = AVERROR_EXTERNAL;
3194             goto fail;
3195         }
3196     }
3197
3198     CHECK_CU(cu->cuCtxPopCurrent(&dummy));
3199
3200     av_log(hwfc, AV_LOG_VERBOSE, "Transfered Vulkan image to CUDA!\n");
3201
3202     return 0;
3203
3204 fail:
3205     CHECK_CU(cu->cuCtxPopCurrent(&dummy));
3206     vulkan_free_internal(dst_int);
3207     dst_f->internal = NULL;
3208     av_buffer_unref(&dst->buf[0]);
3209     return err;
3210 }
3211 #endif
3212
3213 static int vulkan_transfer_data_from(AVHWFramesContext *hwfc, AVFrame *dst,
3214                                      const AVFrame *src)
3215 {
3216     av_unused VulkanDevicePriv *p = hwfc->device_ctx->internal->priv;
3217
3218     switch (dst->format) {
3219 #if CONFIG_CUDA
3220     case AV_PIX_FMT_CUDA:
3221         if ((p->extensions & EXT_EXTERNAL_FD_MEMORY) &&
3222             (p->extensions & EXT_EXTERNAL_FD_SEM))
3223             return vulkan_transfer_data_to_cuda(hwfc, dst, src);
3224 #endif
3225     default:
3226         if (dst->hw_frames_ctx)
3227             return AVERROR(ENOSYS);
3228         else
3229             return vulkan_transfer_data(hwfc, src, dst, 1);
3230     }
3231 }
3232
3233 static int vulkan_frames_derive_to(AVHWFramesContext *dst_fc,
3234                                    AVHWFramesContext *src_fc, int flags)
3235 {
3236     return vulkan_frames_init(dst_fc);
3237 }
3238
3239 AVVkFrame *av_vk_frame_alloc(void)
3240 {
3241     return av_mallocz(sizeof(AVVkFrame));
3242 }
3243
3244 const HWContextType ff_hwcontext_type_vulkan = {
3245     .type                   = AV_HWDEVICE_TYPE_VULKAN,
3246     .name                   = "Vulkan",
3247
3248     .device_hwctx_size      = sizeof(AVVulkanDeviceContext),
3249     .device_priv_size       = sizeof(VulkanDevicePriv),
3250     .frames_hwctx_size      = sizeof(AVVulkanFramesContext),
3251     .frames_priv_size       = sizeof(VulkanFramesPriv),
3252
3253     .device_init            = &vulkan_device_init,
3254     .device_create          = &vulkan_device_create,
3255     .device_derive          = &vulkan_device_derive,
3256
3257     .frames_get_constraints = &vulkan_frames_get_constraints,
3258     .frames_init            = vulkan_frames_init,
3259     .frames_get_buffer      = vulkan_get_buffer,
3260     .frames_uninit          = vulkan_frames_uninit,
3261
3262     .transfer_get_formats   = vulkan_transfer_get_formats,
3263     .transfer_data_to       = vulkan_transfer_data_to,
3264     .transfer_data_from     = vulkan_transfer_data_from,
3265
3266     .map_to                 = vulkan_map_to,
3267     .map_from               = vulkan_map_from,
3268     .frames_derive_to       = &vulkan_frames_derive_to,
3269
3270     .pix_fmts = (const enum AVPixelFormat []) {
3271         AV_PIX_FMT_VULKAN,
3272         AV_PIX_FMT_NONE
3273     },
3274 };