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, 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         /* The memory type must be supported by the requirements (bitfield) */
1274         if (!(req->memoryTypeBits & (1 << i)))
1275             continue;
1276
1277         /* The memory type flags must include our properties */
1278         if ((p->mprops.memoryTypes[i].propertyFlags & req_flags) != req_flags)
1279             continue;
1280
1281         /* Found a suitable memory type */
1282         index = i;
1283         break;
1284     }
1285
1286     if (index < 0) {
1287         av_log(ctx, AV_LOG_ERROR, "No memory type found for flags 0x%x\n",
1288                req_flags);
1289         return AVERROR(EINVAL);
1290     }
1291
1292     alloc_info.memoryTypeIndex = index;
1293
1294     ret = vkAllocateMemory(dev_hwctx->act_dev, &alloc_info,
1295                            dev_hwctx->alloc, mem);
1296     if (ret != VK_SUCCESS) {
1297         av_log(ctx, AV_LOG_ERROR, "Failed to allocate memory: %s\n",
1298                vk_ret2str(ret));
1299         return AVERROR(ENOMEM);
1300     }
1301
1302     *mem_flags |= p->mprops.memoryTypes[index].propertyFlags;
1303
1304     return 0;
1305 }
1306
1307 static void vulkan_free_internal(AVVkFrameInternal *internal)
1308 {
1309     if (!internal)
1310         return;
1311
1312 #if CONFIG_CUDA
1313     if (internal->cuda_fc_ref) {
1314         AVHWFramesContext *cuda_fc = (AVHWFramesContext *)internal->cuda_fc_ref->data;
1315         int planes = av_pix_fmt_count_planes(cuda_fc->sw_format);
1316         AVHWDeviceContext *cuda_cu = cuda_fc->device_ctx;
1317         AVCUDADeviceContext *cuda_dev = cuda_cu->hwctx;
1318         AVCUDADeviceContextInternal *cu_internal = cuda_dev->internal;
1319         CudaFunctions *cu = cu_internal->cuda_dl;
1320
1321         for (int i = 0; i < planes; i++) {
1322             if (internal->cu_sem[i])
1323                 CHECK_CU(cu->cuDestroyExternalSemaphore(internal->cu_sem[i]));
1324             if (internal->cu_mma[i])
1325                 CHECK_CU(cu->cuMipmappedArrayDestroy(internal->cu_mma[i]));
1326             if (internal->ext_mem[i])
1327                 CHECK_CU(cu->cuDestroyExternalMemory(internal->ext_mem[i]));
1328         }
1329
1330         av_buffer_unref(&internal->cuda_fc_ref);
1331     }
1332 #endif
1333
1334     av_free(internal);
1335 }
1336
1337 static void vulkan_frame_free(void *opaque, uint8_t *data)
1338 {
1339     AVVkFrame *f = (AVVkFrame *)data;
1340     AVHWFramesContext *hwfc = opaque;
1341     AVVulkanDeviceContext *hwctx = hwfc->device_ctx->hwctx;
1342     int planes = av_pix_fmt_count_planes(hwfc->sw_format);
1343
1344     vulkan_free_internal(f->internal);
1345
1346     for (int i = 0; i < planes; i++) {
1347         vkDestroyImage(hwctx->act_dev, f->img[i], hwctx->alloc);
1348         vkFreeMemory(hwctx->act_dev, f->mem[i], hwctx->alloc);
1349         vkDestroySemaphore(hwctx->act_dev, f->sem[i], hwctx->alloc);
1350     }
1351
1352     av_free(f);
1353 }
1354
1355 static int alloc_bind_mem(AVHWFramesContext *hwfc, AVVkFrame *f,
1356                           void *alloc_pnext, size_t alloc_pnext_stride)
1357 {
1358     int err;
1359     VkResult ret;
1360     AVHWDeviceContext *ctx = hwfc->device_ctx;
1361     VulkanDevicePriv *p = ctx->internal->priv;
1362     const int planes = av_pix_fmt_count_planes(hwfc->sw_format);
1363     VkBindImageMemoryInfo bind_info[AV_NUM_DATA_POINTERS] = { { 0 } };
1364
1365     AVVulkanDeviceContext *hwctx = ctx->hwctx;
1366
1367     for (int i = 0; i < planes; i++) {
1368         int use_ded_mem;
1369         VkImageMemoryRequirementsInfo2 req_desc = {
1370             .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_REQUIREMENTS_INFO_2,
1371             .image = f->img[i],
1372         };
1373         VkMemoryDedicatedAllocateInfo ded_alloc = {
1374             .sType = VK_STRUCTURE_TYPE_MEMORY_DEDICATED_ALLOCATE_INFO,
1375             .pNext = (void *)(((uint8_t *)alloc_pnext) + i*alloc_pnext_stride),
1376         };
1377         VkMemoryDedicatedRequirements ded_req = {
1378             .sType = VK_STRUCTURE_TYPE_MEMORY_DEDICATED_REQUIREMENTS,
1379         };
1380         VkMemoryRequirements2 req = {
1381             .sType = VK_STRUCTURE_TYPE_MEMORY_REQUIREMENTS_2,
1382             .pNext = &ded_req,
1383         };
1384
1385         vkGetImageMemoryRequirements2(hwctx->act_dev, &req_desc, &req);
1386
1387         if (f->tiling == VK_IMAGE_TILING_LINEAR)
1388             req.memoryRequirements.size = FFALIGN(req.memoryRequirements.size,
1389                                                   p->props.properties.limits.minMemoryMapAlignment);
1390
1391         /* In case the implementation prefers/requires dedicated allocation */
1392         use_ded_mem = ded_req.prefersDedicatedAllocation |
1393                       ded_req.requiresDedicatedAllocation;
1394         if (use_ded_mem)
1395             ded_alloc.image = f->img[i];
1396
1397         /* Allocate memory */
1398         if ((err = alloc_mem(ctx, &req.memoryRequirements,
1399                              f->tiling == VK_IMAGE_TILING_LINEAR ?
1400                              VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT :
1401                              VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT,
1402                              use_ded_mem ? &ded_alloc : (void *)ded_alloc.pNext,
1403                              &f->flags, &f->mem[i])))
1404             return err;
1405
1406         f->size[i] = req.memoryRequirements.size;
1407         bind_info[i].sType  = VK_STRUCTURE_TYPE_BIND_IMAGE_MEMORY_INFO;
1408         bind_info[i].image  = f->img[i];
1409         bind_info[i].memory = f->mem[i];
1410     }
1411
1412     /* Bind the allocated memory to the images */
1413     ret = vkBindImageMemory2(hwctx->act_dev, planes, bind_info);
1414     if (ret != VK_SUCCESS) {
1415         av_log(ctx, AV_LOG_ERROR, "Failed to bind memory: %s\n",
1416                vk_ret2str(ret));
1417         return AVERROR_EXTERNAL;
1418     }
1419
1420     return 0;
1421 }
1422
1423 enum PrepMode {
1424     PREP_MODE_WRITE,
1425     PREP_MODE_RO_SHADER,
1426     PREP_MODE_EXTERNAL_EXPORT,
1427 };
1428
1429 static int prepare_frame(AVHWFramesContext *hwfc, VulkanExecCtx *ectx,
1430                          AVVkFrame *frame, enum PrepMode pmode)
1431 {
1432     int err;
1433     uint32_t dst_qf;
1434     VkImageLayout new_layout;
1435     VkAccessFlags new_access;
1436     const int planes = av_pix_fmt_count_planes(hwfc->sw_format);
1437
1438     VkImageMemoryBarrier img_bar[AV_NUM_DATA_POINTERS] = { 0 };
1439
1440     VkSubmitInfo s_info = {
1441         .sType                = VK_STRUCTURE_TYPE_SUBMIT_INFO,
1442         .pSignalSemaphores    = frame->sem,
1443         .signalSemaphoreCount = planes,
1444     };
1445
1446     VkPipelineStageFlagBits wait_st[AV_NUM_DATA_POINTERS];
1447     for (int i = 0; i < planes; i++)
1448         wait_st[i] = VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT;
1449
1450     switch (pmode) {
1451     case PREP_MODE_WRITE:
1452         new_layout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
1453         new_access = VK_ACCESS_TRANSFER_WRITE_BIT;
1454         dst_qf     = VK_QUEUE_FAMILY_IGNORED;
1455         break;
1456     case PREP_MODE_RO_SHADER:
1457         new_layout = VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL;
1458         new_access = VK_ACCESS_TRANSFER_READ_BIT;
1459         dst_qf     = VK_QUEUE_FAMILY_IGNORED;
1460         break;
1461     case PREP_MODE_EXTERNAL_EXPORT:
1462         new_layout = VK_IMAGE_LAYOUT_GENERAL;
1463         new_access = VK_ACCESS_MEMORY_READ_BIT | VK_ACCESS_MEMORY_WRITE_BIT;
1464         dst_qf     = VK_QUEUE_FAMILY_EXTERNAL_KHR;
1465         s_info.pWaitSemaphores = frame->sem;
1466         s_info.pWaitDstStageMask = wait_st;
1467         s_info.waitSemaphoreCount = planes;
1468         break;
1469     }
1470
1471     if ((err = wait_start_exec_ctx(hwfc, ectx)))
1472         return err;
1473
1474     /* Change the image layout to something more optimal for writes.
1475      * This also signals the newly created semaphore, making it usable
1476      * for synchronization */
1477     for (int i = 0; i < planes; i++) {
1478         img_bar[i].sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
1479         img_bar[i].srcAccessMask = 0x0;
1480         img_bar[i].dstAccessMask = new_access;
1481         img_bar[i].oldLayout = frame->layout[i];
1482         img_bar[i].newLayout = new_layout;
1483         img_bar[i].srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
1484         img_bar[i].dstQueueFamilyIndex = dst_qf;
1485         img_bar[i].image = frame->img[i];
1486         img_bar[i].subresourceRange.levelCount = 1;
1487         img_bar[i].subresourceRange.layerCount = 1;
1488         img_bar[i].subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
1489
1490         frame->layout[i] = img_bar[i].newLayout;
1491         frame->access[i] = img_bar[i].dstAccessMask;
1492     }
1493
1494     vkCmdPipelineBarrier(get_buf_exec_ctx(hwfc, ectx),
1495                          VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
1496                          VK_PIPELINE_STAGE_TRANSFER_BIT,
1497                          0, 0, NULL, 0, NULL, planes, img_bar);
1498
1499     return submit_exec_ctx(hwfc, ectx, &s_info, 0);
1500 }
1501
1502 static int create_frame(AVHWFramesContext *hwfc, AVVkFrame **frame,
1503                         VkImageTiling tiling, VkImageUsageFlagBits usage,
1504                         void *create_pnext)
1505 {
1506     int err;
1507     VkResult ret;
1508     AVHWDeviceContext *ctx = hwfc->device_ctx;
1509     VulkanDevicePriv *p = ctx->internal->priv;
1510     AVVulkanDeviceContext *hwctx = ctx->hwctx;
1511     enum AVPixelFormat format = hwfc->sw_format;
1512     const VkFormat *img_fmts = av_vkfmt_from_pixfmt(format);
1513     const int planes = av_pix_fmt_count_planes(format);
1514
1515     VkExportSemaphoreCreateInfo ext_sem_info = {
1516         .sType = VK_STRUCTURE_TYPE_EXPORT_SEMAPHORE_CREATE_INFO,
1517         .handleTypes = VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_FD_BIT,
1518     };
1519
1520     VkSemaphoreCreateInfo sem_spawn = {
1521         .sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO,
1522         .pNext = p->extensions & EXT_EXTERNAL_FD_SEM ? &ext_sem_info : NULL,
1523     };
1524
1525     AVVkFrame *f = av_vk_frame_alloc();
1526     if (!f) {
1527         av_log(ctx, AV_LOG_ERROR, "Unable to allocate memory for AVVkFrame!\n");
1528         return AVERROR(ENOMEM);
1529     }
1530
1531     /* Create the images */
1532     for (int i = 0; i < planes; i++) {
1533         const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(format);
1534         int w = hwfc->width;
1535         int h = hwfc->height;
1536         const int p_w = i > 0 ? AV_CEIL_RSHIFT(w, desc->log2_chroma_w) : w;
1537         const int p_h = i > 0 ? AV_CEIL_RSHIFT(h, desc->log2_chroma_h) : h;
1538
1539         VkImageCreateInfo image_create_info = {
1540             .sType                 = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
1541             .pNext                 = create_pnext,
1542             .imageType             = VK_IMAGE_TYPE_2D,
1543             .format                = img_fmts[i],
1544             .extent.width          = p_w,
1545             .extent.height         = p_h,
1546             .extent.depth          = 1,
1547             .mipLevels             = 1,
1548             .arrayLayers           = 1,
1549             .flags                 = VK_IMAGE_CREATE_ALIAS_BIT,
1550             .tiling                = tiling,
1551             .initialLayout         = VK_IMAGE_LAYOUT_UNDEFINED,
1552             .usage                 = usage,
1553             .samples               = VK_SAMPLE_COUNT_1_BIT,
1554             .pQueueFamilyIndices   = p->qfs,
1555             .queueFamilyIndexCount = p->num_qfs,
1556             .sharingMode           = p->num_qfs > 1 ? VK_SHARING_MODE_CONCURRENT :
1557                                                       VK_SHARING_MODE_EXCLUSIVE,
1558         };
1559
1560         ret = vkCreateImage(hwctx->act_dev, &image_create_info,
1561                             hwctx->alloc, &f->img[i]);
1562         if (ret != VK_SUCCESS) {
1563             av_log(ctx, AV_LOG_ERROR, "Image creation failure: %s\n",
1564                    vk_ret2str(ret));
1565             err = AVERROR(EINVAL);
1566             goto fail;
1567         }
1568
1569         /* Create semaphore */
1570         ret = vkCreateSemaphore(hwctx->act_dev, &sem_spawn,
1571                                 hwctx->alloc, &f->sem[i]);
1572         if (ret != VK_SUCCESS) {
1573             av_log(hwctx, AV_LOG_ERROR, "Failed to create semaphore: %s\n",
1574                    vk_ret2str(ret));
1575             return AVERROR_EXTERNAL;
1576         }
1577
1578         f->layout[i] = image_create_info.initialLayout;
1579         f->access[i] = 0x0;
1580     }
1581
1582     f->flags     = 0x0;
1583     f->tiling    = tiling;
1584
1585     *frame = f;
1586     return 0;
1587
1588 fail:
1589     vulkan_frame_free(hwfc, (uint8_t *)f);
1590     return err;
1591 }
1592
1593 /* Checks if an export flag is enabled, and if it is ORs it with *iexp */
1594 static void try_export_flags(AVHWFramesContext *hwfc,
1595                              VkExternalMemoryHandleTypeFlags *comp_handle_types,
1596                              VkExternalMemoryHandleTypeFlagBits *iexp,
1597                              VkExternalMemoryHandleTypeFlagBits exp)
1598 {
1599     VkResult ret;
1600     AVVulkanFramesContext *hwctx = hwfc->hwctx;
1601     AVVulkanDeviceContext *dev_hwctx = hwfc->device_ctx->hwctx;
1602     VkExternalImageFormatProperties eprops = {
1603         .sType = VK_STRUCTURE_TYPE_EXTERNAL_IMAGE_FORMAT_PROPERTIES_KHR,
1604     };
1605     VkImageFormatProperties2 props = {
1606         .sType = VK_STRUCTURE_TYPE_IMAGE_FORMAT_PROPERTIES_2,
1607         .pNext = &eprops,
1608     };
1609     VkPhysicalDeviceExternalImageFormatInfo enext = {
1610         .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTERNAL_IMAGE_FORMAT_INFO,
1611         .handleType = exp,
1612     };
1613     VkPhysicalDeviceImageFormatInfo2 pinfo = {
1614         .sType  = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_IMAGE_FORMAT_INFO_2,
1615         .pNext  = !exp ? NULL : &enext,
1616         .format = av_vkfmt_from_pixfmt(hwfc->sw_format)[0],
1617         .type   = VK_IMAGE_TYPE_2D,
1618         .tiling = hwctx->tiling,
1619         .usage  = hwctx->usage,
1620         .flags  = VK_IMAGE_CREATE_ALIAS_BIT,
1621     };
1622
1623     ret = vkGetPhysicalDeviceImageFormatProperties2(dev_hwctx->phys_dev,
1624                                                     &pinfo, &props);
1625     if (ret == VK_SUCCESS) {
1626         *iexp |= exp;
1627         *comp_handle_types |= eprops.externalMemoryProperties.compatibleHandleTypes;
1628     }
1629 }
1630
1631 static AVBufferRef *vulkan_pool_alloc(void *opaque, int size)
1632 {
1633     int err;
1634     AVVkFrame *f;
1635     AVBufferRef *avbuf = NULL;
1636     AVHWFramesContext *hwfc = opaque;
1637     AVVulkanFramesContext *hwctx = hwfc->hwctx;
1638     VulkanDevicePriv *p = hwfc->device_ctx->internal->priv;
1639     VulkanFramesPriv *fp = hwfc->internal->priv;
1640     VkExportMemoryAllocateInfo eminfo[AV_NUM_DATA_POINTERS];
1641     VkExternalMemoryHandleTypeFlags e = 0x0;
1642
1643     VkExternalMemoryImageCreateInfo eiinfo = {
1644         .sType       = VK_STRUCTURE_TYPE_EXTERNAL_MEMORY_IMAGE_CREATE_INFO,
1645         .pNext       = hwctx->create_pnext,
1646     };
1647
1648     if (p->extensions & EXT_EXTERNAL_FD_MEMORY)
1649         try_export_flags(hwfc, &eiinfo.handleTypes, &e,
1650                          VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT);
1651
1652     if (p->extensions & EXT_EXTERNAL_DMABUF_MEMORY)
1653         try_export_flags(hwfc, &eiinfo.handleTypes, &e,
1654                          VK_EXTERNAL_MEMORY_HANDLE_TYPE_DMA_BUF_BIT_EXT);
1655
1656     for (int i = 0; i < av_pix_fmt_count_planes(hwfc->sw_format); i++) {
1657         eminfo[i].sType       = VK_STRUCTURE_TYPE_EXPORT_MEMORY_ALLOCATE_INFO;
1658         eminfo[i].pNext       = hwctx->alloc_pnext[i];
1659         eminfo[i].handleTypes = e;
1660     }
1661
1662     err = create_frame(hwfc, &f, hwctx->tiling, hwctx->usage,
1663                        eiinfo.handleTypes ? &eiinfo : NULL);
1664     if (err)
1665         return NULL;
1666
1667     err = alloc_bind_mem(hwfc, f, eminfo, sizeof(*eminfo));
1668     if (err)
1669         goto fail;
1670
1671     err = prepare_frame(hwfc, &fp->conv_ctx, f, PREP_MODE_WRITE);
1672     if (err)
1673         goto fail;
1674
1675     avbuf = av_buffer_create((uint8_t *)f, sizeof(AVVkFrame),
1676                              vulkan_frame_free, hwfc, 0);
1677     if (!avbuf)
1678         goto fail;
1679
1680     return avbuf;
1681
1682 fail:
1683     vulkan_frame_free(hwfc, (uint8_t *)f);
1684     return NULL;
1685 }
1686
1687 static void vulkan_frames_uninit(AVHWFramesContext *hwfc)
1688 {
1689     VulkanFramesPriv *fp = hwfc->internal->priv;
1690
1691     free_exec_ctx(hwfc, &fp->conv_ctx);
1692     free_exec_ctx(hwfc, &fp->upload_ctx);
1693     free_exec_ctx(hwfc, &fp->download_ctx);
1694 }
1695
1696 static int vulkan_frames_init(AVHWFramesContext *hwfc)
1697 {
1698     int err;
1699     AVVkFrame *f;
1700     AVVulkanFramesContext *hwctx = hwfc->hwctx;
1701     VulkanFramesPriv *fp = hwfc->internal->priv;
1702     AVVulkanDeviceContext *dev_hwctx = hwfc->device_ctx->hwctx;
1703     VulkanDevicePriv *p = hwfc->device_ctx->internal->priv;
1704
1705     /* Default pool flags */
1706     hwctx->tiling = hwctx->tiling ? hwctx->tiling : p->use_linear_images ?
1707                     VK_IMAGE_TILING_LINEAR : VK_IMAGE_TILING_OPTIMAL;
1708
1709     if (!hwctx->usage)
1710         hwctx->usage = DEFAULT_USAGE_FLAGS;
1711
1712     err = create_exec_ctx(hwfc, &fp->conv_ctx,
1713                           dev_hwctx->queue_family_comp_index,
1714                           GET_QUEUE_COUNT(dev_hwctx, 0, 1, 0));
1715     if (err)
1716         goto fail;
1717
1718     err = create_exec_ctx(hwfc, &fp->upload_ctx,
1719                           dev_hwctx->queue_family_tx_index,
1720                           GET_QUEUE_COUNT(dev_hwctx, 0, 0, 1));
1721     if (err)
1722         goto fail;
1723
1724     err = create_exec_ctx(hwfc, &fp->download_ctx,
1725                           dev_hwctx->queue_family_tx_index, 1);
1726     if (err)
1727         goto fail;
1728
1729     /* Test to see if allocation will fail */
1730     err = create_frame(hwfc, &f, hwctx->tiling, hwctx->usage,
1731                        hwctx->create_pnext);
1732     if (err)
1733         goto fail;
1734
1735     vulkan_frame_free(hwfc, (uint8_t *)f);
1736
1737     /* If user did not specify a pool, hwfc->pool will be set to the internal one
1738      * in hwcontext.c just after this gets called */
1739     if (!hwfc->pool) {
1740         hwfc->internal->pool_internal = av_buffer_pool_init2(sizeof(AVVkFrame),
1741                                                              hwfc, vulkan_pool_alloc,
1742                                                              NULL);
1743         if (!hwfc->internal->pool_internal) {
1744             err = AVERROR(ENOMEM);
1745             goto fail;
1746         }
1747     }
1748
1749     return 0;
1750
1751 fail:
1752     free_exec_ctx(hwfc, &fp->conv_ctx);
1753     free_exec_ctx(hwfc, &fp->upload_ctx);
1754     free_exec_ctx(hwfc, &fp->download_ctx);
1755
1756     return err;
1757 }
1758
1759 static int vulkan_get_buffer(AVHWFramesContext *hwfc, AVFrame *frame)
1760 {
1761     frame->buf[0] = av_buffer_pool_get(hwfc->pool);
1762     if (!frame->buf[0])
1763         return AVERROR(ENOMEM);
1764
1765     frame->data[0] = frame->buf[0]->data;
1766     frame->format  = AV_PIX_FMT_VULKAN;
1767     frame->width   = hwfc->width;
1768     frame->height  = hwfc->height;
1769
1770     return 0;
1771 }
1772
1773 static int vulkan_transfer_get_formats(AVHWFramesContext *hwfc,
1774                                        enum AVHWFrameTransferDirection dir,
1775                                        enum AVPixelFormat **formats)
1776 {
1777     enum AVPixelFormat *fmts = av_malloc_array(2, sizeof(*fmts));
1778     if (!fmts)
1779         return AVERROR(ENOMEM);
1780
1781     fmts[0] = hwfc->sw_format;
1782     fmts[1] = AV_PIX_FMT_NONE;
1783
1784     *formats = fmts;
1785     return 0;
1786 }
1787
1788 typedef struct VulkanMapping {
1789     AVVkFrame *frame;
1790     int flags;
1791 } VulkanMapping;
1792
1793 static void vulkan_unmap_frame(AVHWFramesContext *hwfc, HWMapDescriptor *hwmap)
1794 {
1795     VulkanMapping *map = hwmap->priv;
1796     AVVulkanDeviceContext *hwctx = hwfc->device_ctx->hwctx;
1797     const int planes = av_pix_fmt_count_planes(hwfc->sw_format);
1798
1799     /* Check if buffer needs flushing */
1800     if ((map->flags & AV_HWFRAME_MAP_WRITE) &&
1801         !(map->frame->flags & VK_MEMORY_PROPERTY_HOST_COHERENT_BIT)) {
1802         VkResult ret;
1803         VkMappedMemoryRange flush_ranges[AV_NUM_DATA_POINTERS] = { { 0 } };
1804
1805         for (int i = 0; i < planes; i++) {
1806             flush_ranges[i].sType  = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE;
1807             flush_ranges[i].memory = map->frame->mem[i];
1808             flush_ranges[i].size   = VK_WHOLE_SIZE;
1809         }
1810
1811         ret = vkFlushMappedMemoryRanges(hwctx->act_dev, planes,
1812                                         flush_ranges);
1813         if (ret != VK_SUCCESS) {
1814             av_log(hwfc, AV_LOG_ERROR, "Failed to flush memory: %s\n",
1815                    vk_ret2str(ret));
1816         }
1817     }
1818
1819     for (int i = 0; i < planes; i++)
1820         vkUnmapMemory(hwctx->act_dev, map->frame->mem[i]);
1821
1822     av_free(map);
1823 }
1824
1825 static int vulkan_map_frame_to_mem(AVHWFramesContext *hwfc, AVFrame *dst,
1826                                    const AVFrame *src, int flags)
1827 {
1828     VkResult ret;
1829     int err, mapped_mem_count = 0;
1830     AVVkFrame *f = (AVVkFrame *)src->data[0];
1831     AVVulkanDeviceContext *hwctx = hwfc->device_ctx->hwctx;
1832     const int planes = av_pix_fmt_count_planes(hwfc->sw_format);
1833
1834     VulkanMapping *map = av_mallocz(sizeof(VulkanMapping));
1835     if (!map)
1836         return AVERROR(EINVAL);
1837
1838     if (src->format != AV_PIX_FMT_VULKAN) {
1839         av_log(hwfc, AV_LOG_ERROR, "Cannot map from pixel format %s!\n",
1840                av_get_pix_fmt_name(src->format));
1841         err = AVERROR(EINVAL);
1842         goto fail;
1843     }
1844
1845     if (!(f->flags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) ||
1846         !(f->tiling == VK_IMAGE_TILING_LINEAR)) {
1847         av_log(hwfc, AV_LOG_ERROR, "Unable to map frame, not host visible "
1848                "and linear!\n");
1849         err = AVERROR(EINVAL);
1850         goto fail;
1851     }
1852
1853     dst->width  = src->width;
1854     dst->height = src->height;
1855
1856     for (int i = 0; i < planes; i++) {
1857         ret = vkMapMemory(hwctx->act_dev, f->mem[i], 0,
1858                           VK_WHOLE_SIZE, 0, (void **)&dst->data[i]);
1859         if (ret != VK_SUCCESS) {
1860             av_log(hwfc, AV_LOG_ERROR, "Failed to map image memory: %s\n",
1861                 vk_ret2str(ret));
1862             err = AVERROR_EXTERNAL;
1863             goto fail;
1864         }
1865         mapped_mem_count++;
1866     }
1867
1868     /* Check if the memory contents matter */
1869     if (((flags & AV_HWFRAME_MAP_READ) || !(flags & AV_HWFRAME_MAP_OVERWRITE)) &&
1870         !(f->flags & VK_MEMORY_PROPERTY_HOST_COHERENT_BIT)) {
1871         VkMappedMemoryRange map_mem_ranges[AV_NUM_DATA_POINTERS] = { { 0 } };
1872         for (int i = 0; i < planes; i++) {
1873             map_mem_ranges[i].sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE;
1874             map_mem_ranges[i].size = VK_WHOLE_SIZE;
1875             map_mem_ranges[i].memory = f->mem[i];
1876         }
1877
1878         ret = vkInvalidateMappedMemoryRanges(hwctx->act_dev, planes,
1879                                              map_mem_ranges);
1880         if (ret != VK_SUCCESS) {
1881             av_log(hwfc, AV_LOG_ERROR, "Failed to invalidate memory: %s\n",
1882                    vk_ret2str(ret));
1883             err = AVERROR_EXTERNAL;
1884             goto fail;
1885         }
1886     }
1887
1888     for (int i = 0; i < planes; i++) {
1889         VkImageSubresource sub = {
1890             .aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
1891         };
1892         VkSubresourceLayout layout;
1893         vkGetImageSubresourceLayout(hwctx->act_dev, f->img[i], &sub, &layout);
1894         dst->linesize[i] = layout.rowPitch;
1895     }
1896
1897     map->frame = f;
1898     map->flags = flags;
1899
1900     err = ff_hwframe_map_create(src->hw_frames_ctx, dst, src,
1901                                 &vulkan_unmap_frame, map);
1902     if (err < 0)
1903         goto fail;
1904
1905     return 0;
1906
1907 fail:
1908     for (int i = 0; i < mapped_mem_count; i++)
1909         vkUnmapMemory(hwctx->act_dev, f->mem[i]);
1910
1911     av_free(map);
1912     return err;
1913 }
1914
1915 #if CONFIG_LIBDRM
1916 static void vulkan_unmap_from(AVHWFramesContext *hwfc, HWMapDescriptor *hwmap)
1917 {
1918     VulkanMapping *map = hwmap->priv;
1919     AVVulkanDeviceContext *hwctx = hwfc->device_ctx->hwctx;
1920     const int planes = av_pix_fmt_count_planes(hwfc->sw_format);
1921
1922     for (int i = 0; i < planes; i++) {
1923         vkDestroyImage(hwctx->act_dev, map->frame->img[i], hwctx->alloc);
1924         vkFreeMemory(hwctx->act_dev, map->frame->mem[i], hwctx->alloc);
1925         vkDestroySemaphore(hwctx->act_dev, map->frame->sem[i], hwctx->alloc);
1926     }
1927
1928     av_freep(&map->frame);
1929 }
1930
1931 static const struct {
1932     uint32_t drm_fourcc;
1933     VkFormat vk_format;
1934 } vulkan_drm_format_map[] = {
1935     { DRM_FORMAT_R8,       VK_FORMAT_R8_UNORM       },
1936     { DRM_FORMAT_R16,      VK_FORMAT_R16_UNORM      },
1937     { DRM_FORMAT_GR88,     VK_FORMAT_R8G8_UNORM     },
1938     { DRM_FORMAT_RG88,     VK_FORMAT_R8G8_UNORM     },
1939     { DRM_FORMAT_GR1616,   VK_FORMAT_R16G16_UNORM   },
1940     { DRM_FORMAT_RG1616,   VK_FORMAT_R16G16_UNORM   },
1941     { DRM_FORMAT_ARGB8888, VK_FORMAT_B8G8R8A8_UNORM },
1942     { DRM_FORMAT_XRGB8888, VK_FORMAT_B8G8R8A8_UNORM },
1943     { DRM_FORMAT_ABGR8888, VK_FORMAT_R8G8B8A8_UNORM },
1944     { DRM_FORMAT_XBGR8888, VK_FORMAT_R8G8B8A8_UNORM },
1945 };
1946
1947 static inline VkFormat drm_to_vulkan_fmt(uint32_t drm_fourcc)
1948 {
1949     for (int i = 0; i < FF_ARRAY_ELEMS(vulkan_drm_format_map); i++)
1950         if (vulkan_drm_format_map[i].drm_fourcc == drm_fourcc)
1951             return vulkan_drm_format_map[i].vk_format;
1952     return VK_FORMAT_UNDEFINED;
1953 }
1954
1955 static int vulkan_map_from_drm_frame_desc(AVHWFramesContext *hwfc, AVVkFrame **frame,
1956                                           AVDRMFrameDescriptor *desc)
1957 {
1958     int err = 0;
1959     VkResult ret;
1960     AVVkFrame *f;
1961     int bind_counts = 0;
1962     AVHWDeviceContext *ctx = hwfc->device_ctx;
1963     AVVulkanDeviceContext *hwctx = ctx->hwctx;
1964     VulkanDevicePriv *p = ctx->internal->priv;
1965     VulkanFramesPriv *fp = hwfc->internal->priv;
1966     AVVulkanFramesContext *frames_hwctx = hwfc->hwctx;
1967     const AVPixFmtDescriptor *fmt_desc = av_pix_fmt_desc_get(hwfc->sw_format);
1968     const int has_modifiers = p->extensions & EXT_DRM_MODIFIER_FLAGS;
1969     VkSubresourceLayout plane_data[AV_NUM_DATA_POINTERS] = { 0 };
1970     VkBindImageMemoryInfo bind_info[AV_NUM_DATA_POINTERS] = { 0 };
1971     VkBindImagePlaneMemoryInfo plane_info[AV_NUM_DATA_POINTERS] = { 0 };
1972     VkExternalMemoryHandleTypeFlagBits htype = VK_EXTERNAL_MEMORY_HANDLE_TYPE_DMA_BUF_BIT_EXT;
1973
1974     VK_LOAD_PFN(hwctx->inst, vkGetMemoryFdPropertiesKHR);
1975
1976     for (int i = 0; i < desc->nb_layers; i++) {
1977         if (drm_to_vulkan_fmt(desc->layers[i].format) == VK_FORMAT_UNDEFINED) {
1978             av_log(ctx, AV_LOG_ERROR, "Unsupported DMABUF layer format %#08x!\n",
1979                    desc->layers[i].format);
1980             return AVERROR(EINVAL);
1981         }
1982     }
1983
1984     if (!(f = av_vk_frame_alloc())) {
1985         av_log(ctx, AV_LOG_ERROR, "Unable to allocate memory for AVVkFrame!\n");
1986         err = AVERROR(ENOMEM);
1987         goto fail;
1988     }
1989
1990     for (int i = 0; i < desc->nb_objects; i++) {
1991         VkMemoryFdPropertiesKHR fdmp = {
1992             .sType = VK_STRUCTURE_TYPE_MEMORY_FD_PROPERTIES_KHR,
1993         };
1994         VkMemoryRequirements req = {
1995             .size = desc->objects[i].size,
1996         };
1997         VkImportMemoryFdInfoKHR idesc = {
1998             .sType      = VK_STRUCTURE_TYPE_IMPORT_MEMORY_FD_INFO_KHR,
1999             .handleType = htype,
2000             .fd         = dup(desc->objects[i].fd),
2001         };
2002
2003         ret = pfn_vkGetMemoryFdPropertiesKHR(hwctx->act_dev, htype,
2004                                              idesc.fd, &fdmp);
2005         if (ret != VK_SUCCESS) {
2006             av_log(hwfc, AV_LOG_ERROR, "Failed to get FD properties: %s\n",
2007                    vk_ret2str(ret));
2008             err = AVERROR_EXTERNAL;
2009             close(idesc.fd);
2010             goto fail;
2011         }
2012
2013         req.memoryTypeBits = fdmp.memoryTypeBits;
2014
2015         err = alloc_mem(ctx, &req, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT,
2016                         &idesc, &f->flags, &f->mem[i]);
2017         if (err) {
2018             close(idesc.fd);
2019             return err;
2020         }
2021
2022         f->size[i] = desc->objects[i].size;
2023     }
2024
2025     f->tiling = has_modifiers ? VK_IMAGE_TILING_DRM_FORMAT_MODIFIER_EXT :
2026                 desc->objects[0].format_modifier == DRM_FORMAT_MOD_LINEAR ?
2027                 VK_IMAGE_TILING_LINEAR : VK_IMAGE_TILING_OPTIMAL;
2028
2029     for (int i = 0; i < desc->nb_layers; i++) {
2030         const int planes = desc->layers[i].nb_planes;
2031         const int signal_p = has_modifiers && (planes > 1);
2032
2033         VkImageDrmFormatModifierExplicitCreateInfoEXT drm_info = {
2034             .sType = VK_STRUCTURE_TYPE_IMAGE_DRM_FORMAT_MODIFIER_EXPLICIT_CREATE_INFO_EXT,
2035             .drmFormatModifier = desc->objects[0].format_modifier,
2036             .drmFormatModifierPlaneCount = planes,
2037             .pPlaneLayouts = (const VkSubresourceLayout *)&plane_data,
2038         };
2039
2040         VkExternalMemoryImageCreateInfo einfo = {
2041             .sType       = VK_STRUCTURE_TYPE_EXTERNAL_MEMORY_IMAGE_CREATE_INFO,
2042             .pNext       = has_modifiers ? &drm_info : NULL,
2043             .handleTypes = htype,
2044         };
2045
2046         VkSemaphoreCreateInfo sem_spawn = {
2047             .sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO,
2048         };
2049
2050         const int p_w = i > 0 ? AV_CEIL_RSHIFT(hwfc->width, fmt_desc->log2_chroma_w) : hwfc->width;
2051         const int p_h = i > 0 ? AV_CEIL_RSHIFT(hwfc->height, fmt_desc->log2_chroma_h) : hwfc->height;
2052
2053         VkImageCreateInfo image_create_info = {
2054             .sType                 = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
2055             .pNext                 = &einfo,
2056             .imageType             = VK_IMAGE_TYPE_2D,
2057             .format                = drm_to_vulkan_fmt(desc->layers[i].format),
2058             .extent.width          = p_w,
2059             .extent.height         = p_h,
2060             .extent.depth          = 1,
2061             .mipLevels             = 1,
2062             .arrayLayers           = 1,
2063             .flags                 = VK_IMAGE_CREATE_ALIAS_BIT,
2064             .tiling                = f->tiling,
2065             .initialLayout         = VK_IMAGE_LAYOUT_UNDEFINED, /* specs say so */
2066             .usage                 = frames_hwctx->usage,
2067             .samples               = VK_SAMPLE_COUNT_1_BIT,
2068             .pQueueFamilyIndices   = p->qfs,
2069             .queueFamilyIndexCount = p->num_qfs,
2070             .sharingMode           = p->num_qfs > 1 ? VK_SHARING_MODE_CONCURRENT :
2071                                                       VK_SHARING_MODE_EXCLUSIVE,
2072         };
2073
2074         for (int j = 0; j < planes; j++) {
2075             plane_data[j].offset     = desc->layers[i].planes[j].offset;
2076             plane_data[j].rowPitch   = desc->layers[i].planes[j].pitch;
2077             plane_data[j].size       = 0; /* The specs say so for all 3 */
2078             plane_data[j].arrayPitch = 0;
2079             plane_data[j].depthPitch = 0;
2080         }
2081
2082         /* Create image */
2083         ret = vkCreateImage(hwctx->act_dev, &image_create_info,
2084                             hwctx->alloc, &f->img[i]);
2085         if (ret != VK_SUCCESS) {
2086             av_log(ctx, AV_LOG_ERROR, "Image creation failure: %s\n",
2087                    vk_ret2str(ret));
2088             err = AVERROR(EINVAL);
2089             goto fail;
2090         }
2091
2092         ret = vkCreateSemaphore(hwctx->act_dev, &sem_spawn,
2093                                 hwctx->alloc, &f->sem[i]);
2094         if (ret != VK_SUCCESS) {
2095             av_log(hwctx, AV_LOG_ERROR, "Failed to create semaphore: %s\n",
2096                    vk_ret2str(ret));
2097             return AVERROR_EXTERNAL;
2098         }
2099
2100         /* We'd import a semaphore onto the one we created using
2101          * vkImportSemaphoreFdKHR but unfortunately neither DRM nor VAAPI
2102          * offer us anything we could import and sync with, so instead
2103          * just signal the semaphore we created. */
2104
2105         f->layout[i] = image_create_info.initialLayout;
2106         f->access[i] = 0x0;
2107
2108         for (int j = 0; j < planes; j++) {
2109             VkImageAspectFlagBits aspect = j == 0 ? VK_IMAGE_ASPECT_MEMORY_PLANE_0_BIT_EXT :
2110                                            j == 1 ? VK_IMAGE_ASPECT_MEMORY_PLANE_1_BIT_EXT :
2111                                                     VK_IMAGE_ASPECT_MEMORY_PLANE_2_BIT_EXT;
2112
2113             plane_info[bind_counts].sType = VK_STRUCTURE_TYPE_BIND_IMAGE_PLANE_MEMORY_INFO;
2114             plane_info[bind_counts].planeAspect = aspect;
2115
2116             bind_info[bind_counts].sType  = VK_STRUCTURE_TYPE_BIND_IMAGE_MEMORY_INFO;
2117             bind_info[bind_counts].pNext  = signal_p ? &plane_info[bind_counts] : NULL;
2118             bind_info[bind_counts].image  = f->img[i];
2119             bind_info[bind_counts].memory = f->mem[desc->layers[i].planes[j].object_index];
2120             bind_info[bind_counts].memoryOffset = desc->layers[i].planes[j].offset;
2121             bind_counts++;
2122         }
2123     }
2124
2125     /* Bind the allocated memory to the images */
2126     ret = vkBindImageMemory2(hwctx->act_dev, bind_counts, bind_info);
2127     if (ret != VK_SUCCESS) {
2128         av_log(ctx, AV_LOG_ERROR, "Failed to bind memory: %s\n",
2129                vk_ret2str(ret));
2130         return AVERROR_EXTERNAL;
2131     }
2132
2133     /* NOTE: This is completely uneccesary and unneeded once we can import
2134      * semaphores from DRM. Otherwise we have to activate the semaphores.
2135      * We're reusing the exec context that's also used for uploads/downloads. */
2136     err = prepare_frame(hwfc, &fp->conv_ctx, f, PREP_MODE_RO_SHADER);
2137     if (err)
2138         goto fail;
2139
2140     *frame = f;
2141
2142     return 0;
2143
2144 fail:
2145     for (int i = 0; i < desc->nb_layers; i++) {
2146         vkDestroyImage(hwctx->act_dev, f->img[i], hwctx->alloc);
2147         vkDestroySemaphore(hwctx->act_dev, f->sem[i], hwctx->alloc);
2148     }
2149     for (int i = 0; i < desc->nb_objects; i++)
2150         vkFreeMemory(hwctx->act_dev, f->mem[i], hwctx->alloc);
2151
2152     av_free(f);
2153
2154     return err;
2155 }
2156
2157 static int vulkan_map_from_drm(AVHWFramesContext *hwfc, AVFrame *dst,
2158                                const AVFrame *src, int flags)
2159 {
2160     int err = 0;
2161     AVVkFrame *f;
2162     VulkanMapping *map = NULL;
2163
2164     err = vulkan_map_from_drm_frame_desc(hwfc, &f,
2165                                          (AVDRMFrameDescriptor *)src->data[0]);
2166     if (err)
2167         return err;
2168
2169     /* The unmapping function will free this */
2170     dst->data[0] = (uint8_t *)f;
2171     dst->width   = src->width;
2172     dst->height  = src->height;
2173
2174     map = av_mallocz(sizeof(VulkanMapping));
2175     if (!map)
2176         goto fail;
2177
2178     map->frame = f;
2179     map->flags = flags;
2180
2181     err = ff_hwframe_map_create(dst->hw_frames_ctx, dst, src,
2182                                 &vulkan_unmap_from, map);
2183     if (err < 0)
2184         goto fail;
2185
2186     av_log(hwfc, AV_LOG_DEBUG, "Mapped DRM object to Vulkan!\n");
2187
2188     return 0;
2189
2190 fail:
2191     vulkan_frame_free(hwfc->device_ctx->hwctx, (uint8_t *)f);
2192     av_free(map);
2193     return err;
2194 }
2195
2196 #if CONFIG_VAAPI
2197 static int vulkan_map_from_vaapi(AVHWFramesContext *dst_fc,
2198                                  AVFrame *dst, const AVFrame *src,
2199                                  int flags)
2200 {
2201     int err;
2202     AVFrame *tmp = av_frame_alloc();
2203     AVHWFramesContext *vaapi_fc = (AVHWFramesContext*)src->hw_frames_ctx->data;
2204     AVVAAPIDeviceContext *vaapi_ctx = vaapi_fc->device_ctx->hwctx;
2205     VASurfaceID surface_id = (VASurfaceID)(uintptr_t)src->data[3];
2206
2207     if (!tmp)
2208         return AVERROR(ENOMEM);
2209
2210     /* We have to sync since like the previous comment said, no semaphores */
2211     vaSyncSurface(vaapi_ctx->display, surface_id);
2212
2213     tmp->format = AV_PIX_FMT_DRM_PRIME;
2214
2215     err = av_hwframe_map(tmp, src, flags);
2216     if (err < 0)
2217         goto fail;
2218
2219     err = vulkan_map_from_drm(dst_fc, dst, tmp, flags);
2220     if (err < 0)
2221         goto fail;
2222
2223     err = ff_hwframe_map_replace(dst, src);
2224
2225 fail:
2226     av_frame_free(&tmp);
2227     return err;
2228 }
2229 #endif
2230 #endif
2231
2232 #if CONFIG_CUDA
2233 static int vulkan_export_to_cuda(AVHWFramesContext *hwfc,
2234                                  AVBufferRef *cuda_hwfc,
2235                                  const AVFrame *frame)
2236 {
2237     int err;
2238     VkResult ret;
2239     AVVkFrame *dst_f;
2240     AVVkFrameInternal *dst_int;
2241     AVHWDeviceContext *ctx = hwfc->device_ctx;
2242     AVVulkanDeviceContext *hwctx = ctx->hwctx;
2243     const int planes = av_pix_fmt_count_planes(hwfc->sw_format);
2244     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(hwfc->sw_format);
2245     VK_LOAD_PFN(hwctx->inst, vkGetMemoryFdKHR);
2246     VK_LOAD_PFN(hwctx->inst, vkGetSemaphoreFdKHR);
2247
2248     AVHWFramesContext *cuda_fc = (AVHWFramesContext*)cuda_hwfc->data;
2249     AVHWDeviceContext *cuda_cu = cuda_fc->device_ctx;
2250     AVCUDADeviceContext *cuda_dev = cuda_cu->hwctx;
2251     AVCUDADeviceContextInternal *cu_internal = cuda_dev->internal;
2252     CudaFunctions *cu = cu_internal->cuda_dl;
2253     CUarray_format cufmt = desc->comp[0].depth > 8 ? CU_AD_FORMAT_UNSIGNED_INT16 :
2254                                                      CU_AD_FORMAT_UNSIGNED_INT8;
2255
2256     dst_f = (AVVkFrame *)frame->data[0];
2257
2258     dst_int = dst_f->internal;
2259     if (!dst_int || !dst_int->cuda_fc_ref) {
2260         if (!dst_f->internal)
2261             dst_f->internal = dst_int = av_mallocz(sizeof(*dst_f->internal));
2262
2263         if (!dst_int) {
2264             err = AVERROR(ENOMEM);
2265             goto fail;
2266         }
2267
2268         dst_int->cuda_fc_ref = av_buffer_ref(cuda_hwfc);
2269         if (!dst_int->cuda_fc_ref) {
2270             err = AVERROR(ENOMEM);
2271             goto fail;
2272         }
2273
2274         for (int i = 0; i < planes; i++) {
2275             CUDA_EXTERNAL_MEMORY_MIPMAPPED_ARRAY_DESC tex_desc = {
2276                 .offset = 0,
2277                 .arrayDesc = {
2278                     .Width  = i > 0 ? AV_CEIL_RSHIFT(hwfc->width, desc->log2_chroma_w)
2279                                     : hwfc->width,
2280                     .Height = i > 0 ? AV_CEIL_RSHIFT(hwfc->height, desc->log2_chroma_h)
2281                                     : hwfc->height,
2282                     .Depth = 0,
2283                     .Format = cufmt,
2284                     .NumChannels = 1 + ((planes == 2) && i),
2285                     .Flags = 0,
2286                 },
2287                 .numLevels = 1,
2288             };
2289             CUDA_EXTERNAL_MEMORY_HANDLE_DESC ext_desc = {
2290                 .type = CU_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD,
2291                 .size = dst_f->size[i],
2292             };
2293             VkMemoryGetFdInfoKHR export_info = {
2294                 .sType      = VK_STRUCTURE_TYPE_MEMORY_GET_FD_INFO_KHR,
2295                 .memory     = dst_f->mem[i],
2296                 .handleType = VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT_KHR,
2297             };
2298             VkSemaphoreGetFdInfoKHR sem_export = {
2299                 .sType = VK_STRUCTURE_TYPE_SEMAPHORE_GET_FD_INFO_KHR,
2300                 .semaphore = dst_f->sem[i],
2301                 .handleType = VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_FD_BIT,
2302             };
2303             CUDA_EXTERNAL_SEMAPHORE_HANDLE_DESC ext_sem_desc = {
2304                 .type = CU_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_FD,
2305             };
2306
2307             ret = pfn_vkGetMemoryFdKHR(hwctx->act_dev, &export_info,
2308                                        &ext_desc.handle.fd);
2309             if (ret != VK_SUCCESS) {
2310                 av_log(hwfc, AV_LOG_ERROR, "Unable to export the image as a FD!\n");
2311                 err = AVERROR_EXTERNAL;
2312                 goto fail;
2313             }
2314
2315             ret = CHECK_CU(cu->cuImportExternalMemory(&dst_int->ext_mem[i], &ext_desc));
2316             if (ret < 0) {
2317                 err = AVERROR_EXTERNAL;
2318                 goto fail;
2319             }
2320
2321             ret = CHECK_CU(cu->cuExternalMemoryGetMappedMipmappedArray(&dst_int->cu_mma[i],
2322                                                                        dst_int->ext_mem[i],
2323                                                                        &tex_desc));
2324             if (ret < 0) {
2325                 err = AVERROR_EXTERNAL;
2326                 goto fail;
2327             }
2328
2329             ret = CHECK_CU(cu->cuMipmappedArrayGetLevel(&dst_int->cu_array[i],
2330                                                         dst_int->cu_mma[i], 0));
2331             if (ret < 0) {
2332                 err = AVERROR_EXTERNAL;
2333                 goto fail;
2334             }
2335
2336             ret = pfn_vkGetSemaphoreFdKHR(hwctx->act_dev, &sem_export,
2337                                           &ext_sem_desc.handle.fd);
2338             if (ret != VK_SUCCESS) {
2339                 av_log(ctx, AV_LOG_ERROR, "Failed to export semaphore: %s\n",
2340                        vk_ret2str(ret));
2341                 err = AVERROR_EXTERNAL;
2342                 goto fail;
2343             }
2344
2345             ret = CHECK_CU(cu->cuImportExternalSemaphore(&dst_int->cu_sem[i],
2346                                                          &ext_sem_desc));
2347             if (ret < 0) {
2348                 err = AVERROR_EXTERNAL;
2349                 goto fail;
2350             }
2351         }
2352     }
2353
2354     return 0;
2355
2356 fail:
2357     return err;
2358 }
2359
2360 static int vulkan_transfer_data_from_cuda(AVHWFramesContext *hwfc,
2361                                           AVFrame *dst, const AVFrame *src)
2362 {
2363     int err;
2364     VkResult ret;
2365     CUcontext dummy;
2366     AVVkFrame *dst_f;
2367     AVVkFrameInternal *dst_int;
2368     const int planes = av_pix_fmt_count_planes(hwfc->sw_format);
2369     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(hwfc->sw_format);
2370
2371     AVHWFramesContext *cuda_fc = (AVHWFramesContext*)src->hw_frames_ctx->data;
2372     AVHWDeviceContext *cuda_cu = cuda_fc->device_ctx;
2373     AVCUDADeviceContext *cuda_dev = cuda_cu->hwctx;
2374     AVCUDADeviceContextInternal *cu_internal = cuda_dev->internal;
2375     CudaFunctions *cu = cu_internal->cuda_dl;
2376     CUDA_EXTERNAL_SEMAPHORE_WAIT_PARAMS s_w_par[AV_NUM_DATA_POINTERS] = { 0 };
2377     CUDA_EXTERNAL_SEMAPHORE_SIGNAL_PARAMS s_s_par[AV_NUM_DATA_POINTERS] = { 0 };
2378
2379     ret = CHECK_CU(cu->cuCtxPushCurrent(cuda_dev->cuda_ctx));
2380     if (ret < 0) {
2381         err = AVERROR_EXTERNAL;
2382         goto fail;
2383     }
2384
2385     dst_f = (AVVkFrame *)dst->data[0];
2386
2387     ret = vulkan_export_to_cuda(hwfc, src->hw_frames_ctx, dst);
2388     if (ret < 0) {
2389         goto fail;
2390     }
2391     dst_int = dst_f->internal;
2392
2393     ret = CHECK_CU(cu->cuWaitExternalSemaphoresAsync(dst_int->cu_sem, s_w_par,
2394                                                      planes, cuda_dev->stream));
2395     if (ret < 0) {
2396         err = AVERROR_EXTERNAL;
2397         goto fail;
2398     }
2399
2400     for (int i = 0; i < planes; i++) {
2401         CUDA_MEMCPY2D cpy = {
2402             .srcMemoryType = CU_MEMORYTYPE_DEVICE,
2403             .srcDevice     = (CUdeviceptr)src->data[i],
2404             .srcPitch      = src->linesize[i],
2405             .srcY          = 0,
2406
2407             .dstMemoryType = CU_MEMORYTYPE_ARRAY,
2408             .dstArray      = dst_int->cu_array[i],
2409             .WidthInBytes  = (i > 0 ? AV_CEIL_RSHIFT(hwfc->width, desc->log2_chroma_w)
2410                                     : hwfc->width) * desc->comp[i].step,
2411             .Height        = i > 0 ? AV_CEIL_RSHIFT(hwfc->height, desc->log2_chroma_h)
2412                                    : hwfc->height,
2413         };
2414
2415         ret = CHECK_CU(cu->cuMemcpy2DAsync(&cpy, cuda_dev->stream));
2416         if (ret < 0) {
2417             err = AVERROR_EXTERNAL;
2418             goto fail;
2419         }
2420     }
2421
2422     ret = CHECK_CU(cu->cuSignalExternalSemaphoresAsync(dst_int->cu_sem, s_s_par,
2423                                                        planes, cuda_dev->stream));
2424     if (ret < 0) {
2425         err = AVERROR_EXTERNAL;
2426         goto fail;
2427     }
2428
2429     CHECK_CU(cu->cuCtxPopCurrent(&dummy));
2430
2431     av_log(hwfc, AV_LOG_VERBOSE, "Transfered CUDA image to Vulkan!\n");
2432
2433     return 0;
2434
2435 fail:
2436     CHECK_CU(cu->cuCtxPopCurrent(&dummy));
2437     vulkan_free_internal(dst_int);
2438     dst_f->internal = NULL;
2439     av_buffer_unref(&dst->buf[0]);
2440     return err;
2441 }
2442 #endif
2443
2444 static int vulkan_map_to(AVHWFramesContext *hwfc, AVFrame *dst,
2445                          const AVFrame *src, int flags)
2446 {
2447     av_unused VulkanDevicePriv *p = hwfc->device_ctx->internal->priv;
2448
2449     switch (src->format) {
2450 #if CONFIG_LIBDRM
2451 #if CONFIG_VAAPI
2452     case AV_PIX_FMT_VAAPI:
2453         if (p->extensions & EXT_EXTERNAL_DMABUF_MEMORY)
2454             return vulkan_map_from_vaapi(hwfc, dst, src, flags);
2455 #endif
2456     case AV_PIX_FMT_DRM_PRIME:
2457         if (p->extensions & EXT_EXTERNAL_DMABUF_MEMORY)
2458             return vulkan_map_from_drm(hwfc, dst, src, flags);
2459 #endif
2460     default:
2461         return AVERROR(ENOSYS);
2462     }
2463 }
2464
2465 #if CONFIG_LIBDRM
2466 typedef struct VulkanDRMMapping {
2467     AVDRMFrameDescriptor drm_desc;
2468     AVVkFrame *source;
2469 } VulkanDRMMapping;
2470
2471 static void vulkan_unmap_to_drm(AVHWFramesContext *hwfc, HWMapDescriptor *hwmap)
2472 {
2473     AVDRMFrameDescriptor *drm_desc = hwmap->priv;
2474
2475     for (int i = 0; i < drm_desc->nb_objects; i++)
2476         close(drm_desc->objects[i].fd);
2477
2478     av_free(drm_desc);
2479 }
2480
2481 static inline uint32_t vulkan_fmt_to_drm(VkFormat vkfmt)
2482 {
2483     for (int i = 0; i < FF_ARRAY_ELEMS(vulkan_drm_format_map); i++)
2484         if (vulkan_drm_format_map[i].vk_format == vkfmt)
2485             return vulkan_drm_format_map[i].drm_fourcc;
2486     return DRM_FORMAT_INVALID;
2487 }
2488
2489 static int vulkan_map_to_drm(AVHWFramesContext *hwfc, AVFrame *dst,
2490                              const AVFrame *src, int flags)
2491 {
2492     int err = 0;
2493     VkResult ret;
2494     AVVkFrame *f = (AVVkFrame *)src->data[0];
2495     VulkanDevicePriv *p = hwfc->device_ctx->internal->priv;
2496     VulkanFramesPriv *fp = hwfc->internal->priv;
2497     AVVulkanDeviceContext *hwctx = hwfc->device_ctx->hwctx;
2498     const int planes = av_pix_fmt_count_planes(hwfc->sw_format);
2499     VK_LOAD_PFN(hwctx->inst, vkGetMemoryFdKHR);
2500     VkImageDrmFormatModifierPropertiesEXT drm_mod = {
2501         .sType = VK_STRUCTURE_TYPE_IMAGE_DRM_FORMAT_MODIFIER_PROPERTIES_EXT,
2502     };
2503
2504     AVDRMFrameDescriptor *drm_desc = av_mallocz(sizeof(*drm_desc));
2505     if (!drm_desc)
2506         return AVERROR(ENOMEM);
2507
2508     err = prepare_frame(hwfc, &fp->conv_ctx, f, PREP_MODE_EXTERNAL_EXPORT);
2509     if (err < 0)
2510         goto end;
2511
2512     err = ff_hwframe_map_create(src->hw_frames_ctx, dst, src, &vulkan_unmap_to_drm, drm_desc);
2513     if (err < 0)
2514         goto end;
2515
2516     if (p->extensions & EXT_DRM_MODIFIER_FLAGS) {
2517         VK_LOAD_PFN(hwctx->inst, vkGetImageDrmFormatModifierPropertiesEXT);
2518         ret = pfn_vkGetImageDrmFormatModifierPropertiesEXT(hwctx->act_dev, f->img[0],
2519                                                            &drm_mod);
2520         if (ret != VK_SUCCESS) {
2521             av_log(hwfc, AV_LOG_ERROR, "Failed to retrieve DRM format modifier!\n");
2522             err = AVERROR_EXTERNAL;
2523             goto end;
2524         }
2525     }
2526
2527     for (int i = 0; (i < planes) && (f->mem[i]); i++) {
2528         VkMemoryGetFdInfoKHR export_info = {
2529             .sType      = VK_STRUCTURE_TYPE_MEMORY_GET_FD_INFO_KHR,
2530             .memory     = f->mem[i],
2531             .handleType = VK_EXTERNAL_MEMORY_HANDLE_TYPE_DMA_BUF_BIT_EXT,
2532         };
2533
2534         ret = pfn_vkGetMemoryFdKHR(hwctx->act_dev, &export_info,
2535                                    &drm_desc->objects[i].fd);
2536         if (ret != VK_SUCCESS) {
2537             av_log(hwfc, AV_LOG_ERROR, "Unable to export the image as a FD!\n");
2538             err = AVERROR_EXTERNAL;
2539             goto end;
2540         }
2541
2542         drm_desc->nb_objects++;
2543         drm_desc->objects[i].size = f->size[i];
2544         drm_desc->objects[i].format_modifier = drm_mod.drmFormatModifier;
2545     }
2546
2547     drm_desc->nb_layers = planes;
2548     for (int i = 0; i < drm_desc->nb_layers; i++) {
2549         VkSubresourceLayout layout;
2550         VkImageSubresource sub = {
2551             .aspectMask = p->extensions & EXT_DRM_MODIFIER_FLAGS ?
2552                           VK_IMAGE_ASPECT_MEMORY_PLANE_0_BIT_EXT :
2553                           VK_IMAGE_ASPECT_COLOR_BIT,
2554         };
2555         VkFormat plane_vkfmt = av_vkfmt_from_pixfmt(hwfc->sw_format)[i];
2556
2557         drm_desc->layers[i].format    = vulkan_fmt_to_drm(plane_vkfmt);
2558         drm_desc->layers[i].nb_planes = 1;
2559
2560         if (drm_desc->layers[i].format == DRM_FORMAT_INVALID) {
2561             av_log(hwfc, AV_LOG_ERROR, "Cannot map to DRM layer, unsupported!\n");
2562             err = AVERROR_PATCHWELCOME;
2563             goto end;
2564         }
2565
2566         drm_desc->layers[i].planes[0].object_index = FFMIN(i, drm_desc->nb_objects - 1);
2567
2568         if (f->tiling == VK_IMAGE_TILING_OPTIMAL)
2569             continue;
2570
2571         vkGetImageSubresourceLayout(hwctx->act_dev, f->img[i], &sub, &layout);
2572         drm_desc->layers[i].planes[0].offset       = layout.offset;
2573         drm_desc->layers[i].planes[0].pitch        = layout.rowPitch;
2574     }
2575
2576     dst->width   = src->width;
2577     dst->height  = src->height;
2578     dst->data[0] = (uint8_t *)drm_desc;
2579
2580     av_log(hwfc, AV_LOG_VERBOSE, "Mapped AVVkFrame to a DRM object!\n");
2581
2582     return 0;
2583
2584 end:
2585     av_free(drm_desc);
2586     return err;
2587 }
2588
2589 #if CONFIG_VAAPI
2590 static int vulkan_map_to_vaapi(AVHWFramesContext *hwfc, AVFrame *dst,
2591                                const AVFrame *src, int flags)
2592 {
2593     int err;
2594     AVFrame *tmp = av_frame_alloc();
2595     if (!tmp)
2596         return AVERROR(ENOMEM);
2597
2598     tmp->format = AV_PIX_FMT_DRM_PRIME;
2599
2600     err = vulkan_map_to_drm(hwfc, tmp, src, flags);
2601     if (err < 0)
2602         goto fail;
2603
2604     err = av_hwframe_map(dst, tmp, flags);
2605     if (err < 0)
2606         goto fail;
2607
2608     err = ff_hwframe_map_replace(dst, src);
2609
2610 fail:
2611     av_frame_free(&tmp);
2612     return err;
2613 }
2614 #endif
2615 #endif
2616
2617 static int vulkan_map_from(AVHWFramesContext *hwfc, AVFrame *dst,
2618                            const AVFrame *src, int flags)
2619 {
2620     av_unused VulkanDevicePriv *p = hwfc->device_ctx->internal->priv;
2621
2622     switch (dst->format) {
2623 #if CONFIG_LIBDRM
2624     case AV_PIX_FMT_DRM_PRIME:
2625         if (p->extensions & EXT_EXTERNAL_DMABUF_MEMORY)
2626             return vulkan_map_to_drm(hwfc, dst, src, flags);
2627 #if CONFIG_VAAPI
2628     case AV_PIX_FMT_VAAPI:
2629         if (p->extensions & EXT_EXTERNAL_DMABUF_MEMORY)
2630             return vulkan_map_to_vaapi(hwfc, dst, src, flags);
2631 #endif
2632 #endif
2633     default:
2634         return vulkan_map_frame_to_mem(hwfc, dst, src, flags);
2635     }
2636 }
2637
2638 typedef struct ImageBuffer {
2639     VkBuffer buf;
2640     VkDeviceMemory mem;
2641     VkMemoryPropertyFlagBits flags;
2642     int mapped_mem;
2643 } ImageBuffer;
2644
2645 static void free_buf(void *opaque, uint8_t *data)
2646 {
2647     AVHWDeviceContext *ctx = opaque;
2648     AVVulkanDeviceContext *hwctx = ctx->hwctx;
2649     ImageBuffer *vkbuf = (ImageBuffer *)data;
2650
2651     if (vkbuf->buf)
2652         vkDestroyBuffer(hwctx->act_dev, vkbuf->buf, hwctx->alloc);
2653     if (vkbuf->mem)
2654         vkFreeMemory(hwctx->act_dev, vkbuf->mem, hwctx->alloc);
2655
2656     av_free(data);
2657 }
2658
2659 static int create_buf(AVHWDeviceContext *ctx, AVBufferRef **buf, size_t imp_size,
2660                       int height, int *stride, VkBufferUsageFlags usage,
2661                       VkMemoryPropertyFlagBits flags, void *create_pnext,
2662                       void *alloc_pnext)
2663 {
2664     int err;
2665     VkResult ret;
2666     int use_ded_mem;
2667     AVVulkanDeviceContext *hwctx = ctx->hwctx;
2668     VulkanDevicePriv *p = ctx->internal->priv;
2669
2670     VkBufferCreateInfo buf_spawn = {
2671         .sType       = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,
2672         .pNext       = create_pnext,
2673         .usage       = usage,
2674         .sharingMode = VK_SHARING_MODE_EXCLUSIVE,
2675     };
2676
2677     VkBufferMemoryRequirementsInfo2 req_desc = {
2678         .sType = VK_STRUCTURE_TYPE_BUFFER_MEMORY_REQUIREMENTS_INFO_2,
2679     };
2680     VkMemoryDedicatedAllocateInfo ded_alloc = {
2681         .sType = VK_STRUCTURE_TYPE_MEMORY_DEDICATED_ALLOCATE_INFO,
2682         .pNext = alloc_pnext,
2683     };
2684     VkMemoryDedicatedRequirements ded_req = {
2685         .sType = VK_STRUCTURE_TYPE_MEMORY_DEDICATED_REQUIREMENTS,
2686     };
2687     VkMemoryRequirements2 req = {
2688         .sType = VK_STRUCTURE_TYPE_MEMORY_REQUIREMENTS_2,
2689         .pNext = &ded_req,
2690     };
2691
2692     ImageBuffer *vkbuf = av_mallocz(sizeof(*vkbuf));
2693     if (!vkbuf)
2694         return AVERROR(ENOMEM);
2695
2696     vkbuf->mapped_mem = !!imp_size;
2697
2698     if (!vkbuf->mapped_mem) {
2699         *stride = FFALIGN(*stride, p->props.properties.limits.optimalBufferCopyRowPitchAlignment);
2700         buf_spawn.size = height*(*stride);
2701         buf_spawn.size = FFALIGN(buf_spawn.size, p->props.properties.limits.minMemoryMapAlignment);
2702     } else {
2703         buf_spawn.size = imp_size;
2704     }
2705
2706     ret = vkCreateBuffer(hwctx->act_dev, &buf_spawn, NULL, &vkbuf->buf);
2707     if (ret != VK_SUCCESS) {
2708         av_log(ctx, AV_LOG_ERROR, "Failed to create buffer: %s\n",
2709                vk_ret2str(ret));
2710         return AVERROR_EXTERNAL;
2711     }
2712
2713     req_desc.buffer = vkbuf->buf;
2714
2715     vkGetBufferMemoryRequirements2(hwctx->act_dev, &req_desc, &req);
2716
2717     /* In case the implementation prefers/requires dedicated allocation */
2718     use_ded_mem = ded_req.prefersDedicatedAllocation |
2719                   ded_req.requiresDedicatedAllocation;
2720     if (use_ded_mem)
2721         ded_alloc.buffer = vkbuf->buf;
2722
2723     err = alloc_mem(ctx, &req.memoryRequirements, flags,
2724                     use_ded_mem ? &ded_alloc : (void *)ded_alloc.pNext,
2725                     &vkbuf->flags, &vkbuf->mem);
2726     if (err)
2727         return err;
2728
2729     ret = vkBindBufferMemory(hwctx->act_dev, vkbuf->buf, vkbuf->mem, 0);
2730     if (ret != VK_SUCCESS) {
2731         av_log(ctx, AV_LOG_ERROR, "Failed to bind memory to buffer: %s\n",
2732                vk_ret2str(ret));
2733         free_buf(ctx, (uint8_t *)vkbuf);
2734         return AVERROR_EXTERNAL;
2735     }
2736
2737     *buf = av_buffer_create((uint8_t *)vkbuf, sizeof(*vkbuf), free_buf, ctx, 0);
2738     if (!(*buf)) {
2739         free_buf(ctx, (uint8_t *)vkbuf);
2740         return AVERROR(ENOMEM);
2741     }
2742
2743     return 0;
2744 }
2745
2746 /* Skips mapping of host mapped buffers but still invalidates them */
2747 static int map_buffers(AVHWDeviceContext *ctx, AVBufferRef **bufs, uint8_t *mem[],
2748                        int nb_buffers, int invalidate)
2749 {
2750     VkResult ret;
2751     AVVulkanDeviceContext *hwctx = ctx->hwctx;
2752     VkMappedMemoryRange invalidate_ctx[AV_NUM_DATA_POINTERS];
2753     int invalidate_count = 0;
2754
2755     for (int i = 0; i < nb_buffers; i++) {
2756         ImageBuffer *vkbuf = (ImageBuffer *)bufs[i]->data;
2757         if (vkbuf->mapped_mem)
2758             continue;
2759
2760         ret = vkMapMemory(hwctx->act_dev, vkbuf->mem, 0,
2761                           VK_WHOLE_SIZE, 0, (void **)&mem[i]);
2762         if (ret != VK_SUCCESS) {
2763             av_log(ctx, AV_LOG_ERROR, "Failed to map buffer memory: %s\n",
2764                    vk_ret2str(ret));
2765             return AVERROR_EXTERNAL;
2766         }
2767     }
2768
2769     if (!invalidate)
2770         return 0;
2771
2772     for (int i = 0; i < nb_buffers; i++) {
2773         ImageBuffer *vkbuf = (ImageBuffer *)bufs[i]->data;
2774         const VkMappedMemoryRange ival_buf = {
2775             .sType  = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE,
2776             .memory = vkbuf->mem,
2777             .size   = VK_WHOLE_SIZE,
2778         };
2779         if (vkbuf->flags & VK_MEMORY_PROPERTY_HOST_COHERENT_BIT)
2780             continue;
2781         invalidate_ctx[invalidate_count++] = ival_buf;
2782     }
2783
2784     if (invalidate_count) {
2785         ret = vkInvalidateMappedMemoryRanges(hwctx->act_dev, invalidate_count,
2786                                              invalidate_ctx);
2787         if (ret != VK_SUCCESS)
2788             av_log(ctx, AV_LOG_WARNING, "Failed to invalidate memory: %s\n",
2789                    vk_ret2str(ret));
2790     }
2791
2792     return 0;
2793 }
2794
2795 static int unmap_buffers(AVHWDeviceContext *ctx, AVBufferRef **bufs,
2796                          int nb_buffers, int flush)
2797 {
2798     int err = 0;
2799     VkResult ret;
2800     AVVulkanDeviceContext *hwctx = ctx->hwctx;
2801     VkMappedMemoryRange flush_ctx[AV_NUM_DATA_POINTERS];
2802     int flush_count = 0;
2803
2804     if (flush) {
2805         for (int i = 0; i < nb_buffers; i++) {
2806             ImageBuffer *vkbuf = (ImageBuffer *)bufs[i]->data;
2807             const VkMappedMemoryRange flush_buf = {
2808                 .sType  = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE,
2809                 .memory = vkbuf->mem,
2810                 .size   = VK_WHOLE_SIZE,
2811             };
2812             if (vkbuf->flags & VK_MEMORY_PROPERTY_HOST_COHERENT_BIT)
2813                 continue;
2814             flush_ctx[flush_count++] = flush_buf;
2815         }
2816     }
2817
2818     if (flush_count) {
2819         ret = vkFlushMappedMemoryRanges(hwctx->act_dev, flush_count, flush_ctx);
2820         if (ret != VK_SUCCESS) {
2821             av_log(ctx, AV_LOG_ERROR, "Failed to flush memory: %s\n",
2822                     vk_ret2str(ret));
2823             err = AVERROR_EXTERNAL; /* We still want to try to unmap them */
2824         }
2825     }
2826
2827     for (int i = 0; i < nb_buffers; i++) {
2828         ImageBuffer *vkbuf = (ImageBuffer *)bufs[i]->data;
2829         if (vkbuf->mapped_mem)
2830             continue;
2831
2832         vkUnmapMemory(hwctx->act_dev, vkbuf->mem);
2833     }
2834
2835     return err;
2836 }
2837
2838 static int transfer_image_buf(AVHWFramesContext *hwfc, const AVFrame *f,
2839                               AVBufferRef **bufs, const int *buf_stride, int w,
2840                               int h, enum AVPixelFormat pix_fmt, int to_buf)
2841 {
2842     int err;
2843     AVVkFrame *frame = (AVVkFrame *)f->data[0];
2844     VulkanFramesPriv *fp = hwfc->internal->priv;
2845
2846     int bar_num = 0;
2847     VkPipelineStageFlagBits sem_wait_dst[AV_NUM_DATA_POINTERS];
2848
2849     const int planes = av_pix_fmt_count_planes(pix_fmt);
2850     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
2851
2852     VkImageMemoryBarrier img_bar[AV_NUM_DATA_POINTERS] = { 0 };
2853     VulkanExecCtx *ectx = to_buf ? &fp->download_ctx : &fp->upload_ctx;
2854     VkCommandBuffer cmd_buf = get_buf_exec_ctx(hwfc, ectx);
2855
2856     VkSubmitInfo s_info = {
2857         .sType                = VK_STRUCTURE_TYPE_SUBMIT_INFO,
2858         .pSignalSemaphores    = frame->sem,
2859         .pWaitSemaphores      = frame->sem,
2860         .pWaitDstStageMask    = sem_wait_dst,
2861         .signalSemaphoreCount = planes,
2862         .waitSemaphoreCount   = planes,
2863     };
2864
2865     if ((err = wait_start_exec_ctx(hwfc, ectx)))
2866         return err;
2867
2868     /* Change the image layout to something more optimal for transfers */
2869     for (int i = 0; i < planes; i++) {
2870         VkImageLayout new_layout = to_buf ? VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL :
2871                                             VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
2872         VkAccessFlags new_access = to_buf ? VK_ACCESS_TRANSFER_READ_BIT :
2873                                             VK_ACCESS_TRANSFER_WRITE_BIT;
2874
2875         sem_wait_dst[i] = VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT;
2876
2877         /* If the layout matches and we have read access skip the barrier */
2878         if ((frame->layout[i] == new_layout) && (frame->access[i] & new_access))
2879             continue;
2880
2881         img_bar[bar_num].sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
2882         img_bar[bar_num].srcAccessMask = 0x0;
2883         img_bar[bar_num].dstAccessMask = new_access;
2884         img_bar[bar_num].oldLayout = frame->layout[i];
2885         img_bar[bar_num].newLayout = new_layout;
2886         img_bar[bar_num].srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
2887         img_bar[bar_num].dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
2888         img_bar[bar_num].image = frame->img[i];
2889         img_bar[bar_num].subresourceRange.levelCount = 1;
2890         img_bar[bar_num].subresourceRange.layerCount = 1;
2891         img_bar[bar_num].subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
2892
2893         frame->layout[i] = img_bar[bar_num].newLayout;
2894         frame->access[i] = img_bar[bar_num].dstAccessMask;
2895
2896         bar_num++;
2897     }
2898
2899     if (bar_num)
2900         vkCmdPipelineBarrier(cmd_buf, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
2901                              VK_PIPELINE_STAGE_TRANSFER_BIT, 0,
2902                              0, NULL, 0, NULL, bar_num, img_bar);
2903
2904     /* Schedule a copy for each plane */
2905     for (int i = 0; i < planes; i++) {
2906         ImageBuffer *vkbuf = (ImageBuffer *)bufs[i]->data;
2907         const int p_w = i > 0 ? AV_CEIL_RSHIFT(w, desc->log2_chroma_w) : w;
2908         const int p_h = i > 0 ? AV_CEIL_RSHIFT(h, desc->log2_chroma_h) : h;
2909         VkBufferImageCopy buf_reg = {
2910             .bufferOffset = 0,
2911             /* Buffer stride isn't in bytes, it's in samples, the implementation
2912              * uses the image's VkFormat to know how many bytes per sample
2913              * the buffer has. So we have to convert by dividing. Stupid.
2914              * Won't work with YUVA or other planar formats with alpha. */
2915             .bufferRowLength = buf_stride[i] / desc->comp[i].step,
2916             .bufferImageHeight = p_h,
2917             .imageSubresource.layerCount = 1,
2918             .imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
2919             .imageOffset = { 0, 0, 0, },
2920             .imageExtent = { p_w, p_h, 1, },
2921         };
2922
2923         if (to_buf)
2924             vkCmdCopyImageToBuffer(cmd_buf, frame->img[i], frame->layout[i],
2925                                    vkbuf->buf, 1, &buf_reg);
2926         else
2927             vkCmdCopyBufferToImage(cmd_buf, vkbuf->buf, frame->img[i],
2928                                    frame->layout[i], 1, &buf_reg);
2929     }
2930
2931     /* When uploading, do this asynchronously if the source is refcounted by
2932      * keeping the buffers as a submission dependency.
2933      * The hwcontext is guaranteed to not be freed until all frames are freed
2934      * in the frames_unint function.
2935      * When downloading to buffer, do this synchronously and wait for the
2936      * queue submission to finish executing */
2937     if (!to_buf) {
2938         int ref;
2939         for (ref = 0; ref < AV_NUM_DATA_POINTERS; ref++) {
2940             if (!f->buf[ref])
2941                 break;
2942             if ((err = add_buf_dep_exec_ctx(hwfc, ectx, &f->buf[ref], 1)))
2943                 return err;
2944         }
2945         if (ref && (err = add_buf_dep_exec_ctx(hwfc, ectx, bufs, planes)))
2946             return err;
2947         return submit_exec_ctx(hwfc, ectx, &s_info, !ref);
2948     } else {
2949         return submit_exec_ctx(hwfc, ectx, &s_info,    1);
2950     }
2951 }
2952
2953 static int vulkan_transfer_data_from_mem(AVHWFramesContext *hwfc, AVFrame *dst,
2954                                          const AVFrame *src)
2955 {
2956     int err = 0;
2957     AVFrame tmp;
2958     AVVkFrame *f = (AVVkFrame *)dst->data[0];
2959     AVHWDeviceContext *dev_ctx = hwfc->device_ctx;
2960     AVBufferRef *bufs[AV_NUM_DATA_POINTERS] = { 0 };
2961     const int planes = av_pix_fmt_count_planes(src->format);
2962     int log2_chroma = av_pix_fmt_desc_get(src->format)->log2_chroma_h;
2963     VulkanDevicePriv *p = hwfc->device_ctx->internal->priv;
2964     int host_mapped[AV_NUM_DATA_POINTERS] = { 0 };
2965     int map_host = p->extensions & EXT_EXTERNAL_HOST_MEMORY;
2966
2967     if ((src->format != AV_PIX_FMT_NONE && !av_vkfmt_from_pixfmt(src->format))) {
2968         av_log(hwfc, AV_LOG_ERROR, "Unsupported source pixel format!\n");
2969         return AVERROR(EINVAL);
2970     }
2971
2972     if (src->width > hwfc->width || src->height > hwfc->height)
2973         return AVERROR(EINVAL);
2974
2975     /* For linear, host visiable images */
2976     if (f->tiling == VK_IMAGE_TILING_LINEAR &&
2977         f->flags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) {
2978         AVFrame *map = av_frame_alloc();
2979         if (!map)
2980             return AVERROR(ENOMEM);
2981         map->format = src->format;
2982
2983         err = vulkan_map_frame_to_mem(hwfc, map, dst, AV_HWFRAME_MAP_WRITE);
2984         if (err)
2985             return err;
2986
2987         err = av_frame_copy(map, src);
2988         av_frame_free(&map);
2989         return err;
2990     }
2991
2992     /* Create buffers */
2993     for (int i = 0; i < planes; i++) {
2994         int h = src->height;
2995         int p_height = i > 0 ? AV_CEIL_RSHIFT(h, log2_chroma) : h;
2996         size_t p_size = FFABS(src->linesize[i]) * p_height;
2997
2998         VkImportMemoryHostPointerInfoEXT import_desc = {
2999             .sType = VK_STRUCTURE_TYPE_IMPORT_MEMORY_HOST_POINTER_INFO_EXT,
3000             .handleType = VK_EXTERNAL_MEMORY_HANDLE_TYPE_HOST_ALLOCATION_BIT_EXT,
3001             .pHostPointer = src->data[i],
3002         };
3003
3004         /* We can only map images with positive stride and alignment appropriate
3005          * for the device. */
3006         host_mapped[i] = map_host && src->linesize[i] > 0 &&
3007                          !(p_size % p->hprops.minImportedHostPointerAlignment) &&
3008                          !(((uintptr_t)import_desc.pHostPointer) %
3009                            p->hprops.minImportedHostPointerAlignment);
3010         p_size = host_mapped[i] ? p_size : 0;
3011
3012         tmp.linesize[i] = FFABS(src->linesize[i]);
3013         err = create_buf(dev_ctx, &bufs[i], p_size, p_height, &tmp.linesize[i],
3014                          VK_BUFFER_USAGE_TRANSFER_SRC_BIT,
3015                          VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, NULL,
3016                          host_mapped[i] ? &import_desc : NULL);
3017         if (err)
3018             goto end;
3019     }
3020
3021     /* Map, copy image to buffer, unmap */
3022     if ((err = map_buffers(dev_ctx, bufs, tmp.data, planes, 0)))
3023         goto end;
3024
3025     for (int i = 0; i < planes; i++) {
3026         int h = src->height;
3027         int p_height = i > 0 ? AV_CEIL_RSHIFT(h, log2_chroma) : h;
3028
3029         if (host_mapped[i])
3030             continue;
3031
3032         av_image_copy_plane(tmp.data[i], tmp.linesize[i],
3033                             (const uint8_t *)src->data[i], src->linesize[i],
3034                             FFMIN(tmp.linesize[i], src->linesize[i]), p_height);
3035     }
3036
3037     if ((err = unmap_buffers(dev_ctx, bufs, planes, 1)))
3038         goto end;
3039
3040     /* Copy buffers to image */
3041     err = transfer_image_buf(hwfc, dst, bufs, tmp.linesize,
3042                              src->width, src->height, src->format, 0);
3043
3044 end:
3045     for (int i = 0; i < planes; i++)
3046         av_buffer_unref(&bufs[i]);
3047
3048     return err;
3049 }
3050
3051 static int vulkan_transfer_data_to(AVHWFramesContext *hwfc, AVFrame *dst,
3052                                         const AVFrame *src)
3053 {
3054     av_unused VulkanDevicePriv *p = hwfc->device_ctx->internal->priv;
3055
3056     switch (src->format) {
3057 #if CONFIG_CUDA
3058     case AV_PIX_FMT_CUDA:
3059         if ((p->extensions & EXT_EXTERNAL_FD_MEMORY) &&
3060             (p->extensions & EXT_EXTERNAL_FD_SEM))
3061             return vulkan_transfer_data_from_cuda(hwfc, dst, src);
3062 #endif
3063     default:
3064         if (src->hw_frames_ctx)
3065             return AVERROR(ENOSYS);
3066         else
3067             return vulkan_transfer_data_from_mem(hwfc, dst, src);
3068     }
3069 }
3070
3071 #if CONFIG_CUDA
3072 static int vulkan_transfer_data_to_cuda(AVHWFramesContext *hwfc, AVFrame *dst,
3073                                       const AVFrame *src)
3074 {
3075     int err;
3076     VkResult ret;
3077     CUcontext dummy;
3078     AVVkFrame *dst_f;
3079     AVVkFrameInternal *dst_int;
3080     const int planes = av_pix_fmt_count_planes(hwfc->sw_format);
3081     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(hwfc->sw_format);
3082
3083     AVHWFramesContext *cuda_fc = (AVHWFramesContext*)dst->hw_frames_ctx->data;
3084     AVHWDeviceContext *cuda_cu = cuda_fc->device_ctx;
3085     AVCUDADeviceContext *cuda_dev = cuda_cu->hwctx;
3086     AVCUDADeviceContextInternal *cu_internal = cuda_dev->internal;
3087     CudaFunctions *cu = cu_internal->cuda_dl;
3088
3089     ret = CHECK_CU(cu->cuCtxPushCurrent(cuda_dev->cuda_ctx));
3090     if (ret < 0) {
3091         err = AVERROR_EXTERNAL;
3092         goto fail;
3093     }
3094
3095     dst_f = (AVVkFrame *)src->data[0];
3096
3097     err = vulkan_export_to_cuda(hwfc, dst->hw_frames_ctx, src);
3098     if (err < 0) {
3099         goto fail;
3100     }
3101
3102     dst_int = dst_f->internal;
3103
3104     for (int i = 0; i < planes; i++) {
3105         CUDA_MEMCPY2D cpy = {
3106             .dstMemoryType = CU_MEMORYTYPE_DEVICE,
3107             .dstDevice     = (CUdeviceptr)dst->data[i],
3108             .dstPitch      = dst->linesize[i],
3109             .dstY          = 0,
3110
3111             .srcMemoryType = CU_MEMORYTYPE_ARRAY,
3112             .srcArray      = dst_int->cu_array[i],
3113             .WidthInBytes  = (i > 0 ? AV_CEIL_RSHIFT(hwfc->width, desc->log2_chroma_w)
3114                                     : hwfc->width) * desc->comp[i].step,
3115             .Height        = i > 0 ? AV_CEIL_RSHIFT(hwfc->height, desc->log2_chroma_h)
3116                                    : hwfc->height,
3117         };
3118
3119         ret = CHECK_CU(cu->cuMemcpy2DAsync(&cpy, cuda_dev->stream));
3120         if (ret < 0) {
3121             err = AVERROR_EXTERNAL;
3122             goto fail;
3123         }
3124     }
3125
3126     CHECK_CU(cu->cuCtxPopCurrent(&dummy));
3127
3128     av_log(hwfc, AV_LOG_VERBOSE, "Transfered Vulkan image to CUDA!\n");
3129
3130     return 0;
3131
3132 fail:
3133     CHECK_CU(cu->cuCtxPopCurrent(&dummy));
3134     vulkan_free_internal(dst_int);
3135     dst_f->internal = NULL;
3136     av_buffer_unref(&dst->buf[0]);
3137     return err;
3138 }
3139 #endif
3140
3141 static int vulkan_transfer_data_to_mem(AVHWFramesContext *hwfc, AVFrame *dst,
3142                                        const AVFrame *src)
3143 {
3144     int err = 0;
3145     AVFrame tmp;
3146     AVVkFrame *f = (AVVkFrame *)src->data[0];
3147     AVHWDeviceContext *dev_ctx = hwfc->device_ctx;
3148     AVBufferRef *bufs[AV_NUM_DATA_POINTERS] = { 0 };
3149     const int planes = av_pix_fmt_count_planes(dst->format);
3150     int log2_chroma = av_pix_fmt_desc_get(dst->format)->log2_chroma_h;
3151     VulkanDevicePriv *p = hwfc->device_ctx->internal->priv;
3152     int host_mapped[AV_NUM_DATA_POINTERS] = { 0 };
3153     int map_host = p->extensions & EXT_EXTERNAL_HOST_MEMORY;
3154
3155     if (dst->width > hwfc->width || dst->height > hwfc->height)
3156         return AVERROR(EINVAL);
3157
3158     /* For linear, host visiable images */
3159     if (f->tiling == VK_IMAGE_TILING_LINEAR &&
3160         f->flags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) {
3161         AVFrame *map = av_frame_alloc();
3162         if (!map)
3163             return AVERROR(ENOMEM);
3164         map->format = dst->format;
3165
3166         err = vulkan_map_frame_to_mem(hwfc, map, src, AV_HWFRAME_MAP_READ);
3167         if (err)
3168             return err;
3169
3170         err = av_frame_copy(dst, map);
3171         av_frame_free(&map);
3172         return err;
3173     }
3174
3175     /* Create buffers */
3176     for (int i = 0; i < planes; i++) {
3177         int h = dst->height;
3178         int p_height = i > 0 ? AV_CEIL_RSHIFT(h, log2_chroma) : h;
3179         size_t p_size = FFABS(dst->linesize[i]) * p_height;
3180
3181         VkImportMemoryHostPointerInfoEXT import_desc = {
3182             .sType = VK_STRUCTURE_TYPE_IMPORT_MEMORY_HOST_POINTER_INFO_EXT,
3183             .handleType = VK_EXTERNAL_MEMORY_HANDLE_TYPE_HOST_ALLOCATION_BIT_EXT,
3184             .pHostPointer = dst->data[i],
3185         };
3186
3187         /* We can only map images with positive stride and alignment appropriate
3188          * for the device. */
3189         host_mapped[i] = map_host && dst->linesize[i] > 0 &&
3190                          !(p_size % p->hprops.minImportedHostPointerAlignment) &&
3191                          !(((uintptr_t)import_desc.pHostPointer) %
3192                            p->hprops.minImportedHostPointerAlignment);
3193         p_size = host_mapped[i] ? p_size : 0;
3194
3195         tmp.linesize[i] = FFABS(dst->linesize[i]);
3196         err = create_buf(dev_ctx, &bufs[i], p_size, p_height,
3197                          &tmp.linesize[i], VK_BUFFER_USAGE_TRANSFER_DST_BIT,
3198                          VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, NULL,
3199                          host_mapped[i] ? &import_desc : NULL);
3200         if (err)
3201             goto end;
3202     }
3203
3204     /* Copy image to buffer */
3205     if ((err = transfer_image_buf(hwfc, src, bufs, tmp.linesize,
3206                                   dst->width, dst->height, dst->format, 1)))
3207         goto end;
3208
3209     /* Map, copy buffer to frame, unmap */
3210     if ((err = map_buffers(dev_ctx, bufs, tmp.data, planes, 1)))
3211         goto end;
3212
3213     for (int i = 0; i < planes; i++) {
3214         int h = dst->height;
3215         int p_height = i > 0 ? AV_CEIL_RSHIFT(h, log2_chroma) : h;
3216
3217         if (host_mapped[i])
3218             continue;
3219
3220         av_image_copy_plane(dst->data[i], dst->linesize[i],
3221                             (const uint8_t *)tmp.data[i], tmp.linesize[i],
3222                             FFMIN(tmp.linesize[i], dst->linesize[i]), p_height);
3223     }
3224
3225     err = unmap_buffers(dev_ctx, bufs, planes, 0);
3226
3227 end:
3228     for (int i = 0; i < planes; i++)
3229         av_buffer_unref(&bufs[i]);
3230
3231     return err;
3232 }
3233
3234 static int vulkan_transfer_data_from(AVHWFramesContext *hwfc, AVFrame *dst,
3235                                      const AVFrame *src)
3236 {
3237     av_unused VulkanDevicePriv *p = hwfc->device_ctx->internal->priv;
3238
3239     switch (dst->format) {
3240 #if CONFIG_CUDA
3241     case AV_PIX_FMT_CUDA:
3242         if ((p->extensions & EXT_EXTERNAL_FD_MEMORY) &&
3243             (p->extensions & EXT_EXTERNAL_FD_SEM))
3244             return vulkan_transfer_data_to_cuda(hwfc, dst, src);
3245 #endif
3246     default:
3247         if (dst->hw_frames_ctx)
3248             return AVERROR(ENOSYS);
3249         else
3250             return vulkan_transfer_data_to_mem(hwfc, dst, src);
3251     }
3252 }
3253
3254 AVVkFrame *av_vk_frame_alloc(void)
3255 {
3256     return av_mallocz(sizeof(AVVkFrame));
3257 }
3258
3259 const HWContextType ff_hwcontext_type_vulkan = {
3260     .type                   = AV_HWDEVICE_TYPE_VULKAN,
3261     .name                   = "Vulkan",
3262
3263     .device_hwctx_size      = sizeof(AVVulkanDeviceContext),
3264     .device_priv_size       = sizeof(VulkanDevicePriv),
3265     .frames_hwctx_size      = sizeof(AVVulkanFramesContext),
3266     .frames_priv_size       = sizeof(VulkanFramesPriv),
3267
3268     .device_init            = &vulkan_device_init,
3269     .device_create          = &vulkan_device_create,
3270     .device_derive          = &vulkan_device_derive,
3271
3272     .frames_get_constraints = &vulkan_frames_get_constraints,
3273     .frames_init            = vulkan_frames_init,
3274     .frames_get_buffer      = vulkan_get_buffer,
3275     .frames_uninit          = vulkan_frames_uninit,
3276
3277     .transfer_get_formats   = vulkan_transfer_get_formats,
3278     .transfer_data_to       = vulkan_transfer_data_to,
3279     .transfer_data_from     = vulkan_transfer_data_from,
3280
3281     .map_to                 = vulkan_map_to,
3282     .map_from               = vulkan_map_from,
3283
3284     .pix_fmts = (const enum AVPixelFormat []) {
3285         AV_PIX_FMT_VULKAN,
3286         AV_PIX_FMT_NONE
3287     },
3288 };