ext/vulkan/vkupload.c

   1 /*
   2  * GStreamer
   3  * Copyright (C) 2016 Matthew Waters <matthew@centricular.com>
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Library General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Library General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Library General Public
  16  * License along with this library; if not, write to the
  17  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
  18  * Boston, MA 02110-1301, USA.
  19  */
  20
  21 /**
  22  * SECTION:element-vulkanupload
  23  * @title: vulkanupload
  24  *
  25  * vulkanupload uploads data into Vulkan memory objects.
  26  */
  27
  28 #ifdef HAVE_CONFIG_H
  29 #include "config.h"
  30 #endif
  31
  32 #include <string.h>
  33
  34 #include "vkupload.h"
  35
  36 GST_DEBUG_CATEGORY (gst_debug_vulkan_upload);
  37 #define GST_CAT_DEFAULT gst_debug_vulkan_upload
  38
  39 static GstCaps *
  40 _set_caps_features_with_passthrough (const GstCaps * caps,
  41     const gchar * feature_name, GstCapsFeatures * passthrough)
  42 {
  43   guint i, j, m, n;
  44   GstCaps *tmp;
  45
  46   tmp = gst_caps_copy (caps);
  47
  48   n = gst_caps_get_size (caps);
  49   for (i = 0; i < n; i++) {
  50     GstCapsFeatures *features, *orig_features;
  51
  52     orig_features = gst_caps_get_features (caps, i);
  53     features = gst_caps_features_new (feature_name, NULL);
  54
  55     m = gst_caps_features_get_size (orig_features);
  56     for (j = 0; j < m; j++) {
  57       const gchar *feature = gst_caps_features_get_nth (orig_features, j);
  58
  59       /* if we already have the features */
  60       if (gst_caps_features_contains (features, feature))
  61         continue;
  62
  63       if (g_strcmp0 (feature, GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY) == 0)
  64         continue;
  65
  66       if (passthrough && gst_caps_features_contains (passthrough, feature)) {
  67         gst_caps_features_add (features, feature);
  68       }
  69     }
  70
  71     gst_caps_set_features (tmp, i, features);
  72   }
  73
  74   return tmp;
  75 }
  76
  77 struct BufferUpload
  78 {
  79   GstVulkanUpload *upload;
  80 };
  81
  82 static gpointer
  83 _buffer_new_impl (GstVulkanUpload * upload)
  84 {
  85   struct BufferUpload *raw = g_new0 (struct BufferUpload, 1);
  86
  87   raw->upload = upload;
  88
  89   return raw;
  90 }
  91
  92 static GstCaps *
  93 _buffer_transform_caps (gpointer impl, GstPadDirection direction,
  94     GstCaps * caps)
  95 {
  96   return gst_caps_ref (caps);
  97 }
  98
  99 static gboolean
 100 _buffer_set_caps (gpointer impl, GstCaps * in_caps, GstCaps * out_caps)
 101 {
 102   return TRUE;
 103 }
 104
 105 static void
 106 _buffer_propose_allocation (gpointer impl, GstQuery * decide_query,
 107     GstQuery * query)
 108 {
 109   struct BufferUpload *raw = impl;
 110   gboolean need_pool;
 111   GstCaps *caps;
 112   GstVideoInfo info;
 113   guint size;
 114   GstBufferPool *pool = NULL;
 115
 116   gst_query_parse_allocation (query, &caps, &need_pool);
 117
 118   if (caps == NULL)
 119     return;
 120
 121   if (!gst_video_info_from_caps (&info, caps))
 122     return;
 123
 124   /* the normal size of a frame */
 125   size = info.size;
 126
 127   if (need_pool) {
 128     GstStructure *config;
 129
 130     pool = gst_vulkan_buffer_pool_new (raw->upload->device);
 131
 132     config = gst_buffer_pool_get_config (pool);
 133     gst_buffer_pool_config_set_params (config, caps, size, 0, 0);
 134
 135     if (!gst_buffer_pool_set_config (pool, config)) {
 136       g_object_unref (pool);
 137       return;
 138     }
 139   }
 140
 141   gst_query_add_allocation_pool (query, pool, size, 1, 0);
 142   if (pool)
 143     g_object_unref (pool);
 144
 145   return;
 146 }
 147
 148 static GstFlowReturn
 149 _buffer_perform (gpointer impl, GstBuffer * inbuf, GstBuffer ** outbuf)
 150 {
 151   if (!gst_is_vulkan_buffer_memory (gst_buffer_peek_memory (inbuf, 0)))
 152     return GST_FLOW_ERROR;
 153
 154   *outbuf = inbuf;
 155
 156   return GST_FLOW_OK;
 157 }
 158
 159 static void
 160 _buffer_free (gpointer impl)
 161 {
 162   g_free (impl);
 163 }
 164
 165 static GstStaticCaps _buffer_in_templ =
 166     GST_STATIC_CAPS ("video/x-raw(" GST_CAPS_FEATURE_MEMORY_VULKAN_BUFFER ") ;"
 167     "video/x-raw");
 168 static GstStaticCaps _buffer_out_templ =
 169 GST_STATIC_CAPS ("video/x-raw(" GST_CAPS_FEATURE_MEMORY_VULKAN_BUFFER ")");
 170
 171 static const struct UploadMethod buffer_upload = {
 172   "VulkanBuffer",
 173   &_buffer_in_templ,
 174   &_buffer_out_templ,
 175   _buffer_new_impl,
 176   _buffer_transform_caps,
 177   _buffer_set_caps,
 178   _buffer_propose_allocation,
 179   _buffer_perform,
 180   _buffer_free,
 181 };
 182
 183 struct RawToBufferUpload
 184 {
 185   GstVulkanUpload *upload;
 186
 187   GstVideoInfo in_info;
 188   GstVideoInfo out_info;
 189
 190   GstBufferPool *pool;
 191   gboolean pool_active;
 192
 193   gsize alloc_sizes[GST_VIDEO_MAX_PLANES];
 194 };
 195
 196 static gpointer
 197 _raw_to_buffer_new_impl (GstVulkanUpload * upload)
 198 {
 199   struct RawToBufferUpload *raw = g_new0 (struct RawToBufferUpload, 1);
 200
 201   raw->upload = upload;
 202
 203   return raw;
 204 }
 205
 206 static GstCaps *
 207 _raw_to_buffer_transform_caps (gpointer impl, GstPadDirection direction,
 208     GstCaps * caps)
 209 {
 210   GstCaps *ret;
 211
 212   if (direction == GST_PAD_SINK) {
 213     ret =
 214         _set_caps_features_with_passthrough (caps,
 215         GST_CAPS_FEATURE_MEMORY_VULKAN_BUFFER, NULL);
 216   } else {
 217     ret =
 218         _set_caps_features_with_passthrough (caps,
 219         GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY, NULL);
 220   }
 221
 222   return ret;
 223 }
 224
 225 static gboolean
 226 _raw_to_buffer_set_caps (gpointer impl, GstCaps * in_caps, GstCaps * out_caps)
 227 {
 228   struct RawToBufferUpload *raw = impl;
 229   guint out_width, out_height;
 230   guint i;
 231
 232   if (!gst_video_info_from_caps (&raw->in_info, in_caps))
 233     return FALSE;
 234
 235   if (!gst_video_info_from_caps (&raw->out_info, out_caps))
 236     return FALSE;
 237
 238   out_width = GST_VIDEO_INFO_WIDTH (&raw->out_info);
 239   out_height = GST_VIDEO_INFO_HEIGHT (&raw->out_info);
 240
 241   for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&raw->out_info); i++) {
 242     GstVideoFormat v_format = GST_VIDEO_INFO_FORMAT (&raw->out_info);
 243     GstVulkanImageMemory *img_mem;
 244     VkFormat vk_format;
 245
 246     vk_format = gst_vulkan_format_from_video_format (v_format, i);
 247
 248     img_mem = (GstVulkanImageMemory *)
 249         gst_vulkan_image_memory_alloc (raw->upload->device, vk_format,
 250         out_width, out_height, VK_IMAGE_TILING_OPTIMAL,
 251         VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT,
 252         VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
 253
 254     raw->alloc_sizes[i] = img_mem->requirements.size;
 255
 256     gst_memory_unref (GST_MEMORY_CAST (img_mem));
 257   }
 258
 259   return TRUE;
 260 }
 261
 262 static void
 263 _raw_to_buffer_propose_allocation (gpointer impl, GstQuery * decide_query,
 264     GstQuery * query)
 265 {
 266   /* a little trickery with the impl pointer */
 267   _buffer_propose_allocation (impl, decide_query, query);
 268 }
 269
 270 static GstFlowReturn
 271 _raw_to_buffer_perform (gpointer impl, GstBuffer * inbuf, GstBuffer ** outbuf)
 272 {
 273   struct RawToBufferUpload *raw = impl;
 274   GstVideoFrame v_frame;
 275   GstFlowReturn ret;
 276   guint i;
 277
 278   if (!raw->pool) {
 279     GstStructure *config;
 280     guint min = 0, max = 0;
 281     gsize size = 1;
 282
 283     raw->pool = gst_vulkan_buffer_pool_new (raw->upload->device);
 284     config = gst_buffer_pool_get_config (raw->pool);
 285     gst_buffer_pool_config_set_params (config, raw->upload->out_caps, size, min,
 286         max);
 287     gst_buffer_pool_set_config (raw->pool, config);
 288   }
 289   if (!raw->pool_active) {
 290     gst_buffer_pool_set_active (raw->pool, TRUE);
 291     raw->pool_active = TRUE;
 292   }
 293
 294   if ((ret =
 295           gst_buffer_pool_acquire_buffer (raw->pool, outbuf,
 296               NULL)) != GST_FLOW_OK)
 297     goto out;
 298
 299   if (!gst_video_frame_map (&v_frame, &raw->in_info, inbuf, GST_MAP_READ)) {
 300     GST_ELEMENT_ERROR (raw->upload, RESOURCE, NOT_FOUND,
 301         ("%s", "Failed to map input buffer"), NULL);
 302     return GST_FLOW_ERROR;
 303   }
 304
 305   for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&raw->out_info); i++) {
 306     GstMapInfo map_info;
 307     gsize plane_size;
 308     GstMemory *mem;
 309
 310     mem = gst_buffer_peek_memory (*outbuf, i);
 311     if (!gst_memory_map (GST_MEMORY_CAST (mem), &map_info, GST_MAP_WRITE)) {
 312       GST_ELEMENT_ERROR (raw->upload, RESOURCE, NOT_FOUND,
 313           ("%s", "Failed to map output memory"), NULL);
 314       gst_buffer_unref (*outbuf);
 315       *outbuf = NULL;
 316       ret = GST_FLOW_ERROR;
 317       goto out;
 318     }
 319
 320     plane_size =
 321         GST_VIDEO_INFO_PLANE_STRIDE (&raw->out_info,
 322         i) * GST_VIDEO_INFO_COMP_HEIGHT (&raw->out_info, i);
 323     g_assert (plane_size < map_info.size);
 324     memcpy (map_info.data, v_frame.data[i], plane_size);
 325
 326     gst_memory_unmap (GST_MEMORY_CAST (mem), &map_info);
 327   }
 328
 329   gst_video_frame_unmap (&v_frame);
 330
 331   ret = GST_FLOW_OK;
 332
 333 out:
 334   return ret;
 335 }
 336
 337 static void
 338 _raw_to_buffer_free (gpointer impl)
 339 {
 340   struct RawToBufferUpload *raw = impl;
 341
 342   if (raw->pool) {
 343     if (raw->pool_active) {
 344       gst_buffer_pool_set_active (raw->pool, FALSE);
 345     }
 346     raw->pool_active = FALSE;
 347     gst_object_unref (raw->pool);
 348     raw->pool = NULL;
 349   }
 350
 351   g_free (impl);
 352 }
 353
 354 static GstStaticCaps _raw_to_buffer_in_templ = GST_STATIC_CAPS ("video/x-raw");
 355 static GstStaticCaps _raw_to_buffer_out_templ =
 356 GST_STATIC_CAPS ("video/x-raw(" GST_CAPS_FEATURE_MEMORY_VULKAN_BUFFER ")");
 357
 358 static const struct UploadMethod raw_to_buffer_upload = {
 359   "RawToVulkanBuffer",
 360   &_raw_to_buffer_in_templ,
 361   &_raw_to_buffer_out_templ,
 362   _raw_to_buffer_new_impl,
 363   _raw_to_buffer_transform_caps,
 364   _raw_to_buffer_set_caps,
 365   _raw_to_buffer_propose_allocation,
 366   _raw_to_buffer_perform,
 367   _raw_to_buffer_free,
 368 };
 369
 370 struct BufferToImageUpload
 371 {
 372   GstVulkanUpload *upload;
 373
 374   GstVideoInfo in_info;
 375   GstVideoInfo out_info;
 376
 377   GstBufferPool *pool;
 378   gboolean pool_active;
 379
 380   GstVulkanCommandPool *cmd_pool;
 381   GstVulkanTrashList *trash_list;
 382 };
 383
 384 static gpointer
 385 _buffer_to_image_new_impl (GstVulkanUpload * upload)
 386 {
 387   struct BufferToImageUpload *raw = g_new0 (struct BufferToImageUpload, 1);
 388
 389   raw->upload = upload;
 390   raw->trash_list = gst_vulkan_trash_fence_list_new ();
 391
 392   return raw;
 393 }
 394
 395 static GstCaps *
 396 _buffer_to_image_transform_caps (gpointer impl, GstPadDirection direction,
 397     GstCaps * caps)
 398 {
 399   GstCaps *ret;
 400
 401   if (direction == GST_PAD_SINK) {
 402     ret =
 403         _set_caps_features_with_passthrough (caps,
 404         GST_CAPS_FEATURE_MEMORY_VULKAN_IMAGE, NULL);
 405   } else {
 406     ret =
 407         _set_caps_features_with_passthrough (caps,
 408         GST_CAPS_FEATURE_MEMORY_VULKAN_BUFFER, NULL);
 409   }
 410
 411   return ret;
 412 }
 413
 414 static gboolean
 415 _buffer_to_image_set_caps (gpointer impl, GstCaps * in_caps, GstCaps * out_caps)
 416 {
 417   struct BufferToImageUpload *raw = impl;
 418
 419   if (!gst_video_info_from_caps (&raw->in_info, in_caps))
 420     return FALSE;
 421
 422   if (!gst_video_info_from_caps (&raw->out_info, out_caps))
 423     return FALSE;
 424
 425   return TRUE;
 426 }
 427
 428 static void
 429 _buffer_to_image_propose_allocation (gpointer impl, GstQuery * decide_query,
 430     GstQuery * query)
 431 {
 432   /* a little trickery with the impl pointer */
 433   _buffer_propose_allocation (impl, decide_query, query);
 434 }
 435
 436 static GstFlowReturn
 437 _buffer_to_image_perform (gpointer impl, GstBuffer * inbuf, GstBuffer ** outbuf)
 438 {
 439   struct BufferToImageUpload *raw = impl;
 440   GstFlowReturn ret;
 441   GError *error = NULL;
 442   VkResult err;
 443   GstVulkanCommandBuffer *cmd_buf;
 444   guint i;
 445
 446   if (!raw->cmd_pool) {
 447     if (!(raw->cmd_pool =
 448             gst_vulkan_queue_create_command_pool (raw->upload->queue,
 449                 &error))) {
 450       goto error;
 451     }
 452   }
 453
 454   if (!(cmd_buf = gst_vulkan_command_pool_create (raw->cmd_pool, &error)))
 455     goto error;
 456
 457   if (!raw->pool) {
 458     GstStructure *config;
 459     guint min = 0, max = 0;
 460     gsize size = 1;
 461
 462     raw->pool = gst_vulkan_image_buffer_pool_new (raw->upload->device);
 463     config = gst_buffer_pool_get_config (raw->pool);
 464     gst_buffer_pool_config_set_params (config, raw->upload->out_caps, size, min,
 465         max);
 466     gst_buffer_pool_set_config (raw->pool, config);
 467   }
 468   if (!raw->pool_active) {
 469     gst_buffer_pool_set_active (raw->pool, TRUE);
 470     raw->pool_active = TRUE;
 471   }
 472
 473   if ((ret =
 474           gst_buffer_pool_acquire_buffer (raw->pool, outbuf,
 475               NULL)) != GST_FLOW_OK)
 476     goto out;
 477
 478   {
 479     /* *INDENT-OFF* */
 480     VkCommandBufferBeginInfo cmd_buf_info = {
 481         .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO,
 482         .pNext = NULL,
 483         .flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT,
 484         .pInheritanceInfo = NULL
 485     };
 486     /* *INDENT-ON* */
 487
 488     gst_vulkan_command_buffer_lock (cmd_buf);
 489     err = vkBeginCommandBuffer (cmd_buf->cmd, &cmd_buf_info);
 490     if (gst_vulkan_error_to_g_error (err, &error, "vkBeginCommandBuffer") < 0)
 491       goto unlock_error;
 492   }
 493
 494   for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&raw->out_info); i++) {
 495     VkBufferImageCopy region;
 496     GstMemory *in_mem, *out_mem;
 497     GstVulkanBufferMemory *buf_mem;
 498     GstVulkanImageMemory *img_mem;
 499     VkImageMemoryBarrier image_memory_barrier;
 500     VkBufferMemoryBarrier buffer_memory_barrier;
 501
 502     in_mem = gst_buffer_peek_memory (inbuf, i);
 503     if (!gst_is_vulkan_buffer_memory (in_mem)) {
 504       GST_WARNING_OBJECT (raw->upload, "Input is not a GstVulkanBufferMemory");
 505       goto unlock_error;
 506     }
 507     buf_mem = (GstVulkanBufferMemory *) in_mem;
 508
 509     out_mem = gst_buffer_peek_memory (*outbuf, i);
 510     if (!gst_is_vulkan_image_memory (out_mem)) {
 511       GST_WARNING_OBJECT (raw->upload, "Output is not a GstVulkanImageMemory");
 512       goto unlock_error;
 513     }
 514     img_mem = (GstVulkanImageMemory *) out_mem;
 515
 516     /* *INDENT-OFF* */
 517     region = (VkBufferImageCopy) {
 518         .bufferOffset = 0,
 519         .bufferRowLength = GST_VIDEO_INFO_COMP_WIDTH (&raw->in_info, i),
 520         .bufferImageHeight = GST_VIDEO_INFO_COMP_HEIGHT (&raw->in_info, i),
 521         .imageSubresource = {
 522             .aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
 523             .mipLevel = 0,
 524             .baseArrayLayer = 0,
 525             .layerCount = 1,
 526         },
 527         .imageOffset = { .x = 0, .y = 0, .z = 0, },
 528         .imageExtent = {
 529             .width = GST_VIDEO_INFO_COMP_WIDTH (&raw->out_info, i),
 530             .height = GST_VIDEO_INFO_COMP_HEIGHT (&raw->out_info, i),
 531             .depth = 1,
 532         }
 533     };
 534
 535     image_memory_barrier = (VkImageMemoryBarrier) {
 536         .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
 537         .pNext = NULL,
 538         .srcAccessMask = img_mem->barrier.parent.access_flags,
 539         .dstAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT,
 540         .oldLayout = img_mem->barrier.image_layout,
 541         .newLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
 542         /* FIXME: implement exclusive transfers */
 543         .srcQueueFamilyIndex = 0,
 544         .dstQueueFamilyIndex = 0,
 545         .image = img_mem->image,
 546         .subresourceRange = img_mem->barrier.subresource_range
 547     };
 548
 549     buffer_memory_barrier = (VkBufferMemoryBarrier) {
 550         .sType = VK_STRUCTURE_TYPE_BUFFER_MEMORY_BARRIER,
 551         .pNext = NULL,
 552         .srcAccessMask = buf_mem->barrier.parent.access_flags,
 553         .dstAccessMask = VK_ACCESS_TRANSFER_READ_BIT,
 554         /* FIXME: implement exclusive transfers */
 555         .srcQueueFamilyIndex = 0,
 556         .dstQueueFamilyIndex = 0,
 557         .buffer = buf_mem->buffer,
 558         .offset = region.bufferOffset,
 559         .size = region.bufferRowLength * region.bufferImageHeight
 560     };
 561     /* *INDENT-ON* */
 562
 563     vkCmdPipelineBarrier (cmd_buf->cmd,
 564         buf_mem->barrier.parent.pipeline_stages | img_mem->barrier.
 565         parent.pipeline_stages, VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 0, NULL, 1,
 566         &buffer_memory_barrier, 1, &image_memory_barrier);
 567
 568     buf_mem->barrier.parent.pipeline_stages = VK_PIPELINE_STAGE_TRANSFER_BIT;
 569     buf_mem->barrier.parent.access_flags = buffer_memory_barrier.dstAccessMask;
 570
 571     img_mem->barrier.parent.pipeline_stages = VK_PIPELINE_STAGE_TRANSFER_BIT;
 572     img_mem->barrier.parent.access_flags = image_memory_barrier.dstAccessMask;
 573     img_mem->barrier.image_layout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
 574
 575     vkCmdCopyBufferToImage (cmd_buf->cmd, buf_mem->buffer, img_mem->image,
 576         img_mem->barrier.image_layout, 1, &region);
 577   }
 578
 579   err = vkEndCommandBuffer (cmd_buf->cmd);
 580   gst_vulkan_command_buffer_unlock (cmd_buf);
 581   if (gst_vulkan_error_to_g_error (err, &error, "vkEndCommandBuffer") < 0)
 582     goto error;
 583
 584   {
 585     VkSubmitInfo submit_info = { 0, };
 586     VkPipelineStageFlags stages = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
 587     GstVulkanFence *fence;
 588
 589     /* *INDENT-OFF* */
 590     submit_info = (VkSubmitInfo) {
 591         .sType = VK_STRUCTURE_TYPE_SUBMIT_INFO,
 592         .pNext = NULL,
 593         .waitSemaphoreCount = 0,
 594         .pWaitSemaphores = NULL,
 595         .pWaitDstStageMask = &stages,
 596         .commandBufferCount = 1,
 597         .pCommandBuffers = &cmd_buf->cmd,
 598         .signalSemaphoreCount = 0,
 599         .pSignalSemaphores = NULL
 600     };
 601     /* *INDENT-ON* */
 602
 603     fence = gst_vulkan_fence_new (raw->upload->device, 0, &error);
 604     if (!fence)
 605       goto error;
 606
 607     err =
 608         vkQueueSubmit (raw->upload->queue->queue, 1, &submit_info,
 609         GST_VULKAN_FENCE_FENCE (fence));
 610     if (gst_vulkan_error_to_g_error (err, &error, "vkQueueSubmit") < 0)
 611       goto error;
 612
 613     gst_vulkan_trash_list_add (raw->trash_list,
 614         gst_vulkan_trash_new_mini_object_unref (fence,
 615             GST_MINI_OBJECT_CAST (cmd_buf)));
 616   }
 617
 618   gst_vulkan_trash_list_gc (raw->trash_list);
 619
 620   ret = GST_FLOW_OK;
 621
 622 out:
 623   return ret;
 624
 625 unlock_error:
 626   if (cmd_buf) {
 627     gst_vulkan_command_buffer_unlock (cmd_buf);
 628     gst_vulkan_command_buffer_unref (cmd_buf);
 629   }
 630 error:
 631   if (error) {
 632     GST_WARNING_OBJECT (raw->upload, "Error: %s", error->message);
 633     g_clear_error (&error);
 634   }
 635   gst_clear_buffer (outbuf);
 636   ret = GST_FLOW_ERROR;
 637   goto out;
 638 }
 639
 640 static void
 641 _buffer_to_image_free (gpointer impl)
 642 {
 643   struct BufferToImageUpload *raw = impl;
 644
 645   if (raw->pool) {
 646     if (raw->pool_active) {
 647       gst_buffer_pool_set_active (raw->pool, FALSE);
 648     }
 649     raw->pool_active = FALSE;
 650     gst_object_unref (raw->pool);
 651     raw->pool = NULL;
 652   }
 653
 654   if (raw->cmd_pool)
 655     gst_object_unref (raw->cmd_pool);
 656   raw->cmd_pool = NULL;
 657
 658   if (!gst_vulkan_trash_list_wait (raw->trash_list, -1))
 659     GST_WARNING_OBJECT (raw->upload,
 660         "Failed to wait for all fences to complete " "before shutting down");
 661   gst_object_unref (raw->trash_list);
 662   raw->trash_list = NULL;
 663
 664   g_free (impl);
 665 }
 666
 667 static GstStaticCaps _buffer_to_image_in_templ =
 668 GST_STATIC_CAPS ("video/x-raw(" GST_CAPS_FEATURE_MEMORY_VULKAN_BUFFER ")");
 669 static GstStaticCaps _buffer_to_image_out_templ =
 670 GST_STATIC_CAPS ("video/x-raw(" GST_CAPS_FEATURE_MEMORY_VULKAN_IMAGE ")");
 671
 672 static const struct UploadMethod buffer_to_image_upload = {
 673   "BufferToVulkanImage",
 674   &_buffer_to_image_in_templ,
 675   &_buffer_to_image_out_templ,
 676   _buffer_to_image_new_impl,
 677   _buffer_to_image_transform_caps,
 678   _buffer_to_image_set_caps,
 679   _buffer_to_image_propose_allocation,
 680   _buffer_to_image_perform,
 681   _buffer_to_image_free,
 682 };
 683
 684 struct RawToImageUpload
 685 {
 686   GstVulkanUpload *upload;
 687
 688   GstVideoInfo in_info;
 689   GstVideoInfo out_info;
 690
 691   GstBufferPool *pool;
 692   gboolean pool_active;
 693
 694   GstBufferPool *in_pool;
 695   gboolean in_pool_active;
 696
 697   GstVulkanCommandPool *cmd_pool;
 698   GstVulkanTrashList *trash_list;
 699 };
 700
 701 static gpointer
 702 _raw_to_image_new_impl (GstVulkanUpload * upload)
 703 {
 704   struct RawToImageUpload *raw = g_new0 (struct RawToImageUpload, 1);
 705
 706   raw->upload = upload;
 707   raw->trash_list = gst_vulkan_trash_fence_list_new ();
 708
 709   return raw;
 710 }
 711
 712 static GstCaps *
 713 _raw_to_image_transform_caps (gpointer impl, GstPadDirection direction,
 714     GstCaps * caps)
 715 {
 716   GstCaps *ret;
 717
 718   if (direction == GST_PAD_SINK) {
 719     ret =
 720         _set_caps_features_with_passthrough (caps,
 721         GST_CAPS_FEATURE_MEMORY_VULKAN_IMAGE, NULL);
 722   } else {
 723     ret =
 724         _set_caps_features_with_passthrough (caps,
 725         GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY, NULL);
 726   }
 727
 728   return ret;
 729 }
 730
 731 static gboolean
 732 _raw_to_image_set_caps (gpointer impl, GstCaps * in_caps, GstCaps * out_caps)
 733 {
 734   struct RawToImageUpload *raw = impl;
 735
 736   if (!gst_video_info_from_caps (&raw->in_info, in_caps))
 737     return FALSE;
 738
 739   if (!gst_video_info_from_caps (&raw->out_info, out_caps))
 740     return FALSE;
 741
 742   if (raw->in_pool) {
 743     if (raw->in_pool_active) {
 744       gst_buffer_pool_set_active (raw->in_pool, FALSE);
 745     }
 746     raw->in_pool_active = FALSE;
 747     gst_object_unref (raw->in_pool);
 748     raw->in_pool = NULL;
 749   }
 750
 751   return TRUE;
 752 }
 753
 754 static void
 755 _raw_to_image_propose_allocation (gpointer impl, GstQuery * decide_query,
 756     GstQuery * query)
 757 {
 758   /* a little trickery with the impl pointer */
 759   _buffer_propose_allocation (impl, decide_query, query);
 760 }
 761
 762 static GstFlowReturn
 763 _raw_to_image_perform (gpointer impl, GstBuffer * inbuf, GstBuffer ** outbuf)
 764 {
 765   struct RawToImageUpload *raw = impl;
 766   GstFlowReturn ret;
 767   GstBuffer *in_vk_copy = NULL;
 768   GstVulkanCommandBuffer *cmd_buf;
 769   GError *error = NULL;
 770   VkResult err;
 771   guint i;
 772
 773   if (!raw->cmd_pool) {
 774     if (!(raw->cmd_pool =
 775             gst_vulkan_queue_create_command_pool (raw->upload->queue,
 776                 &error))) {
 777       goto error;
 778     }
 779   }
 780
 781   if (!(cmd_buf = gst_vulkan_command_pool_create (raw->cmd_pool, &error)))
 782     goto error;
 783
 784   if (!raw->pool) {
 785     GstStructure *config;
 786     guint min = 0, max = 0;
 787     gsize size = 1;
 788
 789     raw->pool = gst_vulkan_image_buffer_pool_new (raw->upload->device);
 790     config = gst_buffer_pool_get_config (raw->pool);
 791     gst_buffer_pool_config_set_params (config, raw->upload->out_caps, size, min,
 792         max);
 793     gst_buffer_pool_set_config (raw->pool, config);
 794   }
 795   if (!raw->pool_active) {
 796     gst_buffer_pool_set_active (raw->pool, TRUE);
 797     raw->pool_active = TRUE;
 798   }
 799
 800   if ((ret =
 801           gst_buffer_pool_acquire_buffer (raw->pool, outbuf,
 802               NULL)) != GST_FLOW_OK)
 803     goto out;
 804
 805   {
 806     /* *INDENT-OFF* */
 807     VkCommandBufferBeginInfo cmd_buf_info = {
 808         .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO,
 809         .pNext = NULL,
 810         .flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT,
 811         .pInheritanceInfo = NULL
 812     };
 813     /* *INDENT-ON* */
 814
 815     gst_vulkan_command_buffer_lock (cmd_buf);
 816     err = vkBeginCommandBuffer (cmd_buf->cmd, &cmd_buf_info);
 817     if (gst_vulkan_error_to_g_error (err, &error, "vkBeginCommandBuffer") < 0)
 818       return FALSE;
 819   }
 820
 821   for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&raw->out_info); i++) {
 822     VkBufferImageCopy region;
 823     GstMemory *in_mem, *out_mem;
 824     GstVulkanBufferMemory *buf_mem;
 825     GstVulkanImageMemory *img_mem;
 826     VkImageMemoryBarrier image_memory_barrier;
 827     VkBufferMemoryBarrier buffer_memory_barrier;
 828
 829     in_mem = gst_buffer_peek_memory (inbuf, i);
 830     if (gst_is_vulkan_buffer_memory (in_mem)) {
 831       GST_TRACE_OBJECT (raw->upload, "Input is a GstVulkanBufferMemory");
 832       buf_mem = (GstVulkanBufferMemory *) in_mem;
 833     } else if (in_vk_copy) {
 834       GST_TRACE_OBJECT (raw->upload,
 835           "Have buffer copy of GstVulkanBufferMemory");
 836       in_mem = gst_buffer_peek_memory (in_vk_copy, i);
 837       g_assert (gst_is_vulkan_buffer_memory (in_mem));
 838       buf_mem = (GstVulkanBufferMemory *) in_mem;
 839     } else {
 840       GstVideoFrame in_frame, out_frame;
 841
 842       GST_TRACE_OBJECT (raw->upload,
 843           "Copying input to a new GstVulkanBufferMemory");
 844       if (!raw->in_pool) {
 845         GstStructure *config;
 846         guint min = 0, max = 0;
 847         gsize size = 1;
 848
 849         raw->in_pool = gst_vulkan_buffer_pool_new (raw->upload->device);
 850         config = gst_buffer_pool_get_config (raw->pool);
 851         gst_buffer_pool_config_set_params (config, raw->upload->in_caps, size,
 852             min, max);
 853         gst_buffer_pool_set_config (raw->in_pool, config);
 854       }
 855       if (!raw->in_pool_active) {
 856         gst_buffer_pool_set_active (raw->in_pool, TRUE);
 857         raw->in_pool_active = TRUE;
 858       }
 859
 860       if ((ret =
 861               gst_buffer_pool_acquire_buffer (raw->in_pool, &in_vk_copy,
 862                   NULL)) != GST_FLOW_OK) {
 863         goto unlock_error;
 864       }
 865
 866       if (!gst_video_frame_map (&in_frame, &raw->in_info, inbuf, GST_MAP_READ)) {
 867         GST_WARNING_OBJECT (raw->upload, "Failed to map input buffer");
 868         goto unlock_error;
 869       }
 870
 871       if (!gst_video_frame_map (&out_frame, &raw->in_info, in_vk_copy,
 872               GST_MAP_WRITE)) {
 873         gst_video_frame_unmap (&in_frame);
 874         GST_WARNING_OBJECT (raw->upload, "Failed to map input buffer");
 875         goto unlock_error;
 876       }
 877
 878       if (!gst_video_frame_copy (&out_frame, &in_frame)) {
 879         gst_video_frame_unmap (&in_frame);
 880         gst_video_frame_unmap (&out_frame);
 881         GST_WARNING_OBJECT (raw->upload, "Failed to copy input buffer");
 882         goto unlock_error;
 883       }
 884
 885       gst_video_frame_unmap (&in_frame);
 886       gst_video_frame_unmap (&out_frame);
 887
 888       in_mem = gst_buffer_peek_memory (in_vk_copy, i);
 889       buf_mem = (GstVulkanBufferMemory *) in_mem;
 890     }
 891
 892     out_mem = gst_buffer_peek_memory (*outbuf, i);
 893     if (!gst_is_vulkan_image_memory (out_mem)) {
 894       GST_WARNING_OBJECT (raw->upload, "Output is not a GstVulkanImageMemory");
 895       goto unlock_error;
 896     }
 897     img_mem = (GstVulkanImageMemory *) out_mem;
 898
 899     /* *INDENT-OFF* */
 900     region = (VkBufferImageCopy) {
 901         .bufferOffset = 0,
 902         .bufferRowLength = GST_VIDEO_INFO_COMP_WIDTH (&raw->in_info, i),
 903         .bufferImageHeight = GST_VIDEO_INFO_COMP_HEIGHT (&raw->in_info, i),
 904         .imageSubresource = {
 905             .aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
 906             .mipLevel = 0,
 907             .baseArrayLayer = 0,
 908             .layerCount = 1,
 909         },
 910         .imageOffset = { .x = 0, .y = 0, .z = 0, },
 911         .imageExtent = {
 912             .width = GST_VIDEO_INFO_COMP_WIDTH (&raw->out_info, i),
 913             .height = GST_VIDEO_INFO_COMP_HEIGHT (&raw->out_info, i),
 914             .depth = 1,
 915         }
 916     };
 917
 918     buffer_memory_barrier = (VkBufferMemoryBarrier) {
 919         .sType = VK_STRUCTURE_TYPE_BUFFER_MEMORY_BARRIER,
 920         .pNext = NULL,
 921         .srcAccessMask = buf_mem->barrier.parent.access_flags,
 922         .dstAccessMask = VK_ACCESS_TRANSFER_READ_BIT,
 923         /* FIXME: implement exclusive transfers */
 924         .srcQueueFamilyIndex = 0,
 925         .dstQueueFamilyIndex = 0,
 926         .buffer = buf_mem->buffer,
 927         .offset = region.bufferOffset,
 928         .size = region.bufferRowLength * region.bufferImageHeight,
 929     };
 930
 931     image_memory_barrier = (VkImageMemoryBarrier) {
 932         .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
 933         .pNext = NULL,
 934         .srcAccessMask = img_mem->barrier.parent.access_flags,
 935         .dstAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT,
 936         .oldLayout = img_mem->barrier.image_layout,
 937         .newLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
 938         /* FIXME: implement exclusive transfers */
 939         .srcQueueFamilyIndex = 0,
 940         .dstQueueFamilyIndex = 0,
 941         .image = img_mem->image,
 942         .subresourceRange = img_mem->barrier.subresource_range,
 943     };
 944     /* *INDENT-ON* */
 945
 946     vkCmdPipelineBarrier (cmd_buf->cmd,
 947         buf_mem->barrier.parent.pipeline_stages | img_mem->barrier.
 948         parent.pipeline_stages, VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 0, NULL, 1,
 949         &buffer_memory_barrier, 1, &image_memory_barrier);
 950
 951     buf_mem->barrier.parent.pipeline_stages = VK_PIPELINE_STAGE_TRANSFER_BIT;
 952     buf_mem->barrier.parent.access_flags = buffer_memory_barrier.dstAccessMask;
 953
 954     img_mem->barrier.parent.pipeline_stages = VK_PIPELINE_STAGE_TRANSFER_BIT;
 955     img_mem->barrier.parent.access_flags = image_memory_barrier.dstAccessMask;
 956     img_mem->barrier.image_layout = image_memory_barrier.newLayout;
 957
 958     vkCmdCopyBufferToImage (cmd_buf->cmd, buf_mem->buffer, img_mem->image,
 959         img_mem->barrier.image_layout, 1, &region);
 960   }
 961
 962   err = vkEndCommandBuffer (cmd_buf->cmd);
 963   gst_vulkan_command_buffer_unlock (cmd_buf);
 964   if (gst_vulkan_error_to_g_error (err, &error, "vkEndCommandBuffer") < 0) {
 965     goto error;
 966   }
 967
 968   {
 969     VkSubmitInfo submit_info = { 0, };
 970     GstVulkanFence *fence;
 971
 972     /* *INDENT-OFF* */
 973     submit_info = (VkSubmitInfo) {
 974         .sType = VK_STRUCTURE_TYPE_SUBMIT_INFO,
 975         .pNext = NULL,
 976         .waitSemaphoreCount = 0,
 977         .pWaitSemaphores = NULL,
 978         .pWaitDstStageMask = NULL,
 979         .commandBufferCount = 1,
 980         .pCommandBuffers = &cmd_buf->cmd,
 981         .signalSemaphoreCount = 0,
 982         .pSignalSemaphores = NULL,
 983     };
 984     /* *INDENT-ON* */
 985
 986     fence = gst_vulkan_fence_new (raw->upload->device, 0, &error);
 987     if (!fence)
 988       goto error;
 989
 990     err =
 991         vkQueueSubmit (raw->upload->queue->queue, 1, &submit_info,
 992         GST_VULKAN_FENCE_FENCE (fence));
 993     if (gst_vulkan_error_to_g_error (err, &error, "vkQueueSubmit") < 0)
 994       goto error;
 995
 996     gst_vulkan_trash_list_add (raw->trash_list,
 997         gst_vulkan_trash_new_mini_object_unref (fence,
 998             GST_MINI_OBJECT_CAST (cmd_buf)));
 999   }
1000
1001   gst_vulkan_trash_list_gc (raw->trash_list);
1002
1003   ret = GST_FLOW_OK;
1004
1005 out:
1006   if (in_vk_copy)
1007     gst_buffer_unref (in_vk_copy);
1008
1009   return ret;
1010
1011 unlock_error:
1012   if (cmd_buf) {
1013     gst_vulkan_command_buffer_lock (cmd_buf);
1014     gst_vulkan_command_buffer_unref (cmd_buf);
1015   }
1016 error:
1017   if (error) {
1018     GST_WARNING_OBJECT (raw->upload, "Error: %s", error->message);
1019     g_clear_error (&error);
1020   }
1021   gst_clear_buffer (outbuf);
1022   ret = GST_FLOW_ERROR;
1023   goto out;
1024 }
1025
1026 static void
1027 _raw_to_image_free (gpointer impl)
1028 {
1029   struct RawToImageUpload *raw = impl;
1030
1031   if (raw->pool) {
1032     if (raw->pool_active) {
1033       gst_buffer_pool_set_active (raw->pool, FALSE);
1034     }
1035     raw->pool_active = FALSE;
1036     gst_object_unref (raw->pool);
1037     raw->pool = NULL;
1038   }
1039
1040   if (raw->in_pool) {
1041     if (raw->in_pool_active) {
1042       gst_buffer_pool_set_active (raw->in_pool, FALSE);
1043     }
1044     raw->in_pool_active = FALSE;
1045     gst_object_unref (raw->in_pool);
1046     raw->in_pool = NULL;
1047   }
1048
1049   if (raw->cmd_pool)
1050     gst_object_unref (raw->cmd_pool);
1051   raw->cmd_pool = NULL;
1052
1053   if (!gst_vulkan_trash_list_wait (raw->trash_list, -1))
1054     GST_WARNING_OBJECT (raw->upload,
1055         "Failed to wait for all fences to complete " "before shutting down");
1056   gst_object_unref (raw->trash_list);
1057   raw->trash_list = NULL;
1058
1059   g_free (impl);
1060 }
1061
1062 static GstStaticCaps _raw_to_image_in_templ = GST_STATIC_CAPS ("video/x-raw");
1063 static GstStaticCaps _raw_to_image_out_templ =
1064 GST_STATIC_CAPS ("video/x-raw(" GST_CAPS_FEATURE_MEMORY_VULKAN_IMAGE ")");
1065
1066 static const struct UploadMethod raw_to_image_upload = {
1067   "RawToVulkanImage",
1068   &_raw_to_image_in_templ,
1069   &_raw_to_image_out_templ,
1070   _raw_to_image_new_impl,
1071   _raw_to_image_transform_caps,
1072   _raw_to_image_set_caps,
1073   _raw_to_image_propose_allocation,
1074   _raw_to_image_perform,
1075   _raw_to_image_free,
1076 };
1077
1078 static const struct UploadMethod *upload_methods[] = {
1079   &buffer_upload,
1080   &raw_to_buffer_upload,
1081   &raw_to_image_upload,
1082   &buffer_to_image_upload,
1083 };
1084
1085 static GstCaps *
1086 _get_input_template_caps (void)
1087 {
1088   GstCaps *ret = NULL;
1089   gint i;
1090
1091   /* FIXME: cache this and invalidate on changes to upload_methods */
1092   for (i = 0; i < G_N_ELEMENTS (upload_methods); i++) {
1093     GstCaps *template = gst_static_caps_get (upload_methods[i]->in_template);
1094     ret = ret == NULL ? template : gst_caps_merge (ret, template);
1095   }
1096
1097   ret = gst_caps_simplify (ret);
1098
1099   return ret;
1100 }
1101
1102 static GstCaps *
1103 _get_output_template_caps (void)
1104 {
1105   GstCaps *ret = NULL;
1106   gint i;
1107
1108   /* FIXME: cache this and invalidate on changes to upload_methods */
1109   for (i = 0; i < G_N_ELEMENTS (upload_methods); i++) {
1110     GstCaps *template = gst_static_caps_get (upload_methods[i]->out_template);
1111     ret = ret == NULL ? template : gst_caps_merge (ret, template);
1112   }
1113
1114   ret = gst_caps_simplify (ret);
1115
1116   return ret;
1117 }
1118
1119 static void gst_vulkan_upload_finalize (GObject * object);
1120 static void gst_vulkan_upload_set_property (GObject * object, guint prop_id,
1121     const GValue * value, GParamSpec * param_spec);
1122 static void gst_vulkan_upload_get_property (GObject * object, guint prop_id,
1123     GValue * value, GParamSpec * param_spec);
1124
1125 static gboolean gst_vulkan_upload_query (GstBaseTransform * bt,
1126     GstPadDirection direction, GstQuery * query);
1127 static void gst_vulkan_upload_set_context (GstElement * element,
1128     GstContext * context);
1129 static GstStateChangeReturn gst_vulkan_upload_change_state (GstElement *
1130     element, GstStateChange transition);
1131
1132 static gboolean gst_vulkan_upload_set_caps (GstBaseTransform * bt,
1133     GstCaps * in_caps, GstCaps * out_caps);
1134 static GstCaps *gst_vulkan_upload_transform_caps (GstBaseTransform * bt,
1135     GstPadDirection direction, GstCaps * caps, GstCaps * filter);
1136 static gboolean gst_vulkan_upload_propose_allocation (GstBaseTransform * bt,
1137     GstQuery * decide_query, GstQuery * query);
1138 static gboolean gst_vulkan_upload_decide_allocation (GstBaseTransform * bt,
1139     GstQuery * query);
1140 static GstFlowReturn gst_vulkan_upload_transform (GstBaseTransform * bt,
1141     GstBuffer * inbuf, GstBuffer * outbuf);
1142 static GstFlowReturn gst_vulkan_upload_prepare_output_buffer (GstBaseTransform *
1143     bt, GstBuffer * inbuf, GstBuffer ** outbuf);
1144
1145 enum
1146 {
1147   PROP_0,
1148 };
1149
1150 enum
1151 {
1152   SIGNAL_0,
1153   LAST_SIGNAL
1154 };
1155
1156 /* static guint gst_vulkan_upload_signals[LAST_SIGNAL] = { 0 }; */
1157
1158 #define gst_vulkan_upload_parent_class parent_class
1159 G_DEFINE_TYPE_WITH_CODE (GstVulkanUpload, gst_vulkan_upload,
1160     GST_TYPE_BASE_TRANSFORM, GST_DEBUG_CATEGORY_INIT (gst_debug_vulkan_upload,
1161         "vulkanupload", 0, "Vulkan Uploader"));
1162
1163 static void
1164 gst_vulkan_upload_class_init (GstVulkanUploadClass * klass)
1165 {
1166   GObjectClass *gobject_class;
1167   GstElementClass *gstelement_class;
1168   GstBaseTransformClass *gstbasetransform_class;
1169
1170   gobject_class = (GObjectClass *) klass;
1171   gstelement_class = (GstElementClass *) klass;
1172   gstbasetransform_class = (GstBaseTransformClass *) klass;
1173
1174   gobject_class->set_property = gst_vulkan_upload_set_property;
1175   gobject_class->get_property = gst_vulkan_upload_get_property;
1176
1177   gst_element_class_set_metadata (gstelement_class, "Vulkan Uploader",
1178       "Filter/Video", "A Vulkan data uploader",
1179       "Matthew Waters <matthew@centricular.com>");
1180
1181   {
1182     GstCaps *caps;
1183
1184     caps = _get_input_template_caps ();
1185     gst_element_class_add_pad_template (gstelement_class,
1186         gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, caps));
1187     gst_caps_unref (caps);
1188
1189     caps = _get_output_template_caps ();
1190     gst_element_class_add_pad_template (gstelement_class,
1191         gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, caps));
1192     gst_caps_unref (caps);
1193   }
1194
1195   gobject_class->finalize = gst_vulkan_upload_finalize;
1196
1197   gstelement_class->change_state = gst_vulkan_upload_change_state;
1198   gstelement_class->set_context = gst_vulkan_upload_set_context;
1199   gstbasetransform_class->query = GST_DEBUG_FUNCPTR (gst_vulkan_upload_query);
1200   gstbasetransform_class->set_caps = gst_vulkan_upload_set_caps;
1201   gstbasetransform_class->transform_caps = gst_vulkan_upload_transform_caps;
1202   gstbasetransform_class->propose_allocation =
1203       gst_vulkan_upload_propose_allocation;
1204   gstbasetransform_class->decide_allocation =
1205       gst_vulkan_upload_decide_allocation;
1206   gstbasetransform_class->transform = gst_vulkan_upload_transform;
1207   gstbasetransform_class->prepare_output_buffer =
1208       gst_vulkan_upload_prepare_output_buffer;
1209 }
1210
1211 static void
1212 gst_vulkan_upload_init (GstVulkanUpload * vk_upload)
1213 {
1214   guint i, n;
1215
1216   n = G_N_ELEMENTS (upload_methods);
1217   vk_upload->upload_impls = g_malloc (sizeof (gpointer) * n);
1218   for (i = 0; i < n; i++) {
1219     vk_upload->upload_impls[i] = upload_methods[i]->new_impl (vk_upload);
1220   }
1221 }
1222
1223 static void
1224 gst_vulkan_upload_finalize (GObject * object)
1225 {
1226   GstVulkanUpload *vk_upload = GST_VULKAN_UPLOAD (object);
1227   guint i;
1228
1229   gst_caps_replace (&vk_upload->in_caps, NULL);
1230   gst_caps_replace (&vk_upload->out_caps, NULL);
1231
1232   for (i = 0; i < G_N_ELEMENTS (upload_methods); i++) {
1233     upload_methods[i]->free (vk_upload->upload_impls[i]);
1234   }
1235   g_free (vk_upload->upload_impls);
1236   vk_upload->upload_impls = NULL;
1237
1238   G_OBJECT_CLASS (parent_class)->finalize (object);
1239 }
1240
1241 static void
1242 gst_vulkan_upload_set_property (GObject * object, guint prop_id,
1243     const GValue * value, GParamSpec * pspec)
1244 {
1245 //  GstVulkanUpload *vk_upload = GST_VULKAN_UPLOAD (object);
1246
1247   switch (prop_id) {
1248     default:
1249       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1250       break;
1251   }
1252 }
1253
1254 static void
1255 gst_vulkan_upload_get_property (GObject * object, guint prop_id,
1256     GValue * value, GParamSpec * pspec)
1257 {
1258 //  GstVulkanUpload *vk_upload = GST_VULKAN_UPLOAD (object);
1259
1260   switch (prop_id) {
1261     default:
1262       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1263       break;
1264   }
1265 }
1266
1267 static gboolean
1268 gst_vulkan_upload_query (GstBaseTransform * bt, GstPadDirection direction,
1269     GstQuery * query)
1270 {
1271   GstVulkanUpload *vk_upload = GST_VULKAN_UPLOAD (bt);
1272
1273   switch (GST_QUERY_TYPE (query)) {
1274     case GST_QUERY_CONTEXT:{
1275       if (gst_vulkan_handle_context_query (GST_ELEMENT (vk_upload), query,
1276               NULL, vk_upload->instance, vk_upload->device))
1277         return TRUE;
1278
1279       if (gst_vulkan_queue_handle_context_query (GST_ELEMENT (vk_upload), query,
1280               vk_upload->queue))
1281         return TRUE;
1282
1283       break;
1284     }
1285     default:
1286       break;
1287   }
1288
1289   return GST_BASE_TRANSFORM_CLASS (parent_class)->query (bt, direction, query);
1290 }
1291
1292 static void
1293 gst_vulkan_upload_set_context (GstElement * element, GstContext * context)
1294 {
1295   GstVulkanUpload *vk_upload = GST_VULKAN_UPLOAD (element);
1296
1297   gst_vulkan_handle_set_context (element, context, NULL, &vk_upload->instance);
1298
1299   GST_ELEMENT_CLASS (parent_class)->set_context (element, context);
1300 }
1301
1302 struct choose_data
1303 {
1304   GstVulkanUpload *upload;
1305   GstVulkanQueue *queue;
1306 };
1307
1308 static gboolean
1309 _choose_queue (GstVulkanDevice * device, GstVulkanQueue * queue,
1310     struct choose_data *data)
1311 {
1312   guint flags =
1313       device->physical_device->queue_family_props[queue->family].queueFlags;
1314
1315   if ((flags & VK_QUEUE_GRAPHICS_BIT) != 0) {
1316     if (data->queue)
1317       gst_object_unref (data->queue);
1318     data->queue = gst_object_ref (queue);
1319     return FALSE;
1320   }
1321
1322   return TRUE;
1323 }
1324
1325 static GstVulkanQueue *
1326 _find_graphics_queue (GstVulkanUpload * upload)
1327 {
1328   struct choose_data data;
1329
1330   data.upload = upload;
1331   data.queue = NULL;
1332
1333   gst_vulkan_device_foreach_queue (upload->device,
1334       (GstVulkanDeviceForEachQueueFunc) _choose_queue, &data);
1335
1336   return data.queue;
1337 }
1338
1339 static GstStateChangeReturn
1340 gst_vulkan_upload_change_state (GstElement * element, GstStateChange transition)
1341 {
1342   GstVulkanUpload *vk_upload = GST_VULKAN_UPLOAD (element);
1343   GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
1344
1345   GST_DEBUG ("changing state: %s => %s",
1346       gst_element_state_get_name (GST_STATE_TRANSITION_CURRENT (transition)),
1347       gst_element_state_get_name (GST_STATE_TRANSITION_NEXT (transition)));
1348
1349   switch (transition) {
1350     case GST_STATE_CHANGE_NULL_TO_READY:
1351       break;
1352     case GST_STATE_CHANGE_READY_TO_PAUSED:
1353       if (!gst_vulkan_ensure_element_data (element, NULL, &vk_upload->instance)) {
1354         GST_ELEMENT_ERROR (vk_upload, RESOURCE, NOT_FOUND,
1355             ("Failed to retreive vulkan instance"), (NULL));
1356         return GST_STATE_CHANGE_FAILURE;
1357       }
1358       if (!gst_vulkan_device_run_context_query (GST_ELEMENT (vk_upload),
1359               &vk_upload->device)) {
1360         GError *error = NULL;
1361         GST_DEBUG_OBJECT (vk_upload, "No device retrieved from peer elements");
1362         if (!(vk_upload->device =
1363                 gst_vulkan_instance_create_device (vk_upload->instance,
1364                     &error))) {
1365           GST_ELEMENT_ERROR (vk_upload, RESOURCE, NOT_FOUND,
1366               ("Failed to create vulkan device"), ("%s",
1367                   error ? error->message : ""));
1368           g_clear_error (&error);
1369           return GST_STATE_CHANGE_FAILURE;
1370         }
1371       }
1372
1373       if (!gst_vulkan_queue_run_context_query (GST_ELEMENT (vk_upload),
1374               &vk_upload->queue)) {
1375         GST_DEBUG_OBJECT (vk_upload, "No queue retrieved from peer elements");
1376         vk_upload->queue = _find_graphics_queue (vk_upload);
1377       }
1378       if (!vk_upload->queue) {
1379         GST_ELEMENT_ERROR (vk_upload, RESOURCE, NOT_FOUND,
1380             ("Failed to create/retrieve vulkan queue"), (NULL));
1381         return GST_STATE_CHANGE_FAILURE;
1382       }
1383       break;
1384     case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
1385       break;
1386     default:
1387       break;
1388   }
1389
1390   ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
1391   if (ret == GST_STATE_CHANGE_FAILURE)
1392     return ret;
1393
1394   switch (transition) {
1395     case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
1396       break;
1397     case GST_STATE_CHANGE_PAUSED_TO_READY:
1398       if (vk_upload->queue)
1399         gst_object_unref (vk_upload->queue);
1400       vk_upload->queue = NULL;
1401       if (vk_upload->device)
1402         gst_object_unref (vk_upload->device);
1403       vk_upload->device = NULL;
1404       if (vk_upload->instance)
1405         gst_object_unref (vk_upload->instance);
1406       vk_upload->instance = NULL;
1407       break;
1408     case GST_STATE_CHANGE_READY_TO_NULL:
1409       break;
1410     default:
1411       break;
1412   }
1413
1414   return ret;
1415 }
1416
1417 static GstCaps *
1418 gst_vulkan_upload_transform_caps (GstBaseTransform * bt,
1419     GstPadDirection direction, GstCaps * caps, GstCaps * filter)
1420 {
1421   GstVulkanUpload *vk_upload = GST_VULKAN_UPLOAD (bt);
1422   GstCaps *result, *tmp;
1423   gint i;
1424
1425   tmp = gst_caps_new_empty ();
1426
1427   for (i = 0; i < G_N_ELEMENTS (upload_methods); i++) {
1428     GstCaps *tmp2;
1429     GstCaps *templ;
1430
1431     if (direction == GST_PAD_SINK) {
1432       templ = gst_static_caps_get (upload_methods[i]->in_template);
1433     } else {
1434       templ = gst_static_caps_get (upload_methods[i]->out_template);
1435     }
1436     if (!gst_caps_can_intersect (caps, templ)) {
1437       gst_caps_unref (templ);
1438       continue;
1439     }
1440     gst_caps_unref (templ);
1441
1442     tmp2 = upload_methods[i]->transform_caps (vk_upload->upload_impls[i],
1443         direction, caps);
1444
1445     if (tmp2)
1446       tmp = gst_caps_merge (tmp, tmp2);
1447   }
1448
1449   if (filter) {
1450     result = gst_caps_intersect_full (filter, tmp, GST_CAPS_INTERSECT_FIRST);
1451     gst_caps_unref (tmp);
1452   } else {
1453     result = tmp;
1454   }
1455
1456   return result;
1457 }
1458
1459 static gboolean
1460 gst_vulkan_upload_set_caps (GstBaseTransform * bt, GstCaps * in_caps,
1461     GstCaps * out_caps)
1462 {
1463   GstVulkanUpload *vk_upload = GST_VULKAN_UPLOAD (bt);
1464   gboolean found_method = FALSE;
1465   guint i;
1466
1467   gst_caps_replace (&vk_upload->in_caps, in_caps);
1468   gst_caps_replace (&vk_upload->out_caps, out_caps);
1469
1470   for (i = 0; i < G_N_ELEMENTS (upload_methods); i++) {
1471     GstCaps *templ;
1472
1473     templ = gst_static_caps_get (upload_methods[i]->in_template);
1474     if (!gst_caps_can_intersect (in_caps, templ)) {
1475       gst_caps_unref (templ);
1476       continue;
1477     }
1478     gst_caps_unref (templ);
1479
1480     templ = gst_static_caps_get (upload_methods[i]->out_template);
1481     if (!gst_caps_can_intersect (out_caps, templ)) {
1482       gst_caps_unref (templ);
1483       continue;
1484     }
1485     gst_caps_unref (templ);
1486
1487     if (!upload_methods[i]->set_caps (vk_upload->upload_impls[i], in_caps,
1488             out_caps))
1489       continue;
1490
1491     GST_LOG_OBJECT (bt, "uploader %s accepted caps in: %" GST_PTR_FORMAT
1492         " out: %" GST_PTR_FORMAT, upload_methods[i]->name, in_caps, out_caps);
1493
1494     vk_upload->current_impl = i;
1495     found_method = TRUE;
1496     break;
1497   }
1498
1499   GST_DEBUG_OBJECT (bt,
1500       "set caps in: %" GST_PTR_FORMAT " out: %" GST_PTR_FORMAT, in_caps,
1501       out_caps);
1502
1503   return found_method;
1504 }
1505
1506 static gboolean
1507 gst_vulkan_upload_propose_allocation (GstBaseTransform * bt,
1508     GstQuery * decide_query, GstQuery * query)
1509 {
1510   GstVulkanUpload *vk_upload = GST_VULKAN_UPLOAD (bt);
1511   guint i;
1512
1513   for (i = 0; i < G_N_ELEMENTS (upload_methods); i++) {
1514     GstCaps *templ;
1515
1516     templ = gst_static_caps_get (upload_methods[i]->in_template);
1517     if (!gst_caps_can_intersect (vk_upload->in_caps, templ)) {
1518       gst_caps_unref (templ);
1519       continue;
1520     }
1521     gst_caps_unref (templ);
1522
1523     templ = gst_static_caps_get (upload_methods[i]->out_template);
1524     if (!gst_caps_can_intersect (vk_upload->out_caps, templ)) {
1525       gst_caps_unref (templ);
1526       continue;
1527     }
1528     gst_caps_unref (templ);
1529
1530     upload_methods[i]->propose_allocation (vk_upload->upload_impls[i],
1531         decide_query, query);
1532   }
1533
1534   return TRUE;
1535 }
1536
1537 static gboolean
1538 gst_vulkan_upload_decide_allocation (GstBaseTransform * bt, GstQuery * query)
1539 {
1540   return TRUE;
1541 }
1542
1543 static gboolean
1544 _upload_find_method (GstVulkanUpload * vk_upload)
1545 {
1546   vk_upload->current_impl++;
1547
1548   if (vk_upload->current_impl >= G_N_ELEMENTS (upload_methods))
1549     return FALSE;
1550
1551   GST_DEBUG_OBJECT (vk_upload, "attempting upload with uploader %s",
1552       upload_methods[vk_upload->current_impl]->name);
1553
1554   return TRUE;
1555 }
1556
1557 static GstFlowReturn
1558 gst_vulkan_upload_prepare_output_buffer (GstBaseTransform * bt,
1559     GstBuffer * inbuf, GstBuffer ** outbuf)
1560 {
1561   GstBaseTransformClass *bclass = GST_BASE_TRANSFORM_GET_CLASS (bt);
1562   GstVulkanUpload *vk_upload = GST_VULKAN_UPLOAD (bt);
1563   GstFlowReturn ret;
1564
1565 restart:
1566   {
1567     gpointer method_impl;
1568     const struct UploadMethod *method;
1569
1570     method = upload_methods[vk_upload->current_impl];
1571     method_impl = vk_upload->upload_impls[vk_upload->current_impl];
1572
1573     ret = method->perform (method_impl, inbuf, outbuf);
1574     if (ret != GST_FLOW_OK) {
1575     next_method:
1576       if (!_upload_find_method (vk_upload)) {
1577         GST_ELEMENT_ERROR (bt, RESOURCE, NOT_FOUND,
1578             ("Could not find suitable uploader"), (NULL));
1579         return GST_FLOW_ERROR;
1580       }
1581
1582       method = upload_methods[vk_upload->current_impl];
1583       method_impl = vk_upload->upload_impls[vk_upload->current_impl];
1584       if (!method->set_caps (method_impl, vk_upload->in_caps,
1585               vk_upload->out_caps))
1586         /* try the next method */
1587         goto next_method;
1588
1589       /* try the uploading with the next method */
1590       goto restart;
1591     }
1592   }
1593
1594   if (ret == GST_FLOW_OK) {
1595     /* basetransform doesn't unref if they're the same */
1596     if (inbuf != *outbuf)
1597       bclass->copy_metadata (bt, inbuf, *outbuf);
1598   }
1599
1600   return ret;
1601 }
1602
1603 static GstFlowReturn
1604 gst_vulkan_upload_transform (GstBaseTransform * bt, GstBuffer * inbuf,
1605     GstBuffer * outbuf)
1606 {
1607   return GST_FLOW_OK;
1608 }