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241 lines
7.3 KiB
C
241 lines
7.3 KiB
C
/*
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* GStreamer
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* Copyright (C) 2019 Matthew Waters <matthew@centricular.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "iosurfacevulkanmemory.h"
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#include "metal-helpers.h"
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GST_DEBUG_CATEGORY_STATIC (GST_CAT_IO_SURFACE_VULKAN_MEMORY);
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#define GST_CAT_DEFAULT GST_CAT_IO_SURFACE_VULKAN_MEMORY
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G_DEFINE_TYPE (GstIOSurfaceVulkanMemoryAllocator,
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gst_io_surface_vulkan_memory_allocator,
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GST_TYPE_VULKAN_IMAGE_MEMORY_ALLOCATOR);
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typedef struct
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{
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GstIOSurfaceVulkanMemory *memory;
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IOSurfaceRef surface;
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} ContextThreadData;
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static GstAllocator *_io_surface_vulkan_memory_allocator;
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static void
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_mem_free (GstAllocator * allocator, GstMemory * mem)
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{
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gst_io_surface_vulkan_memory_set_surface ((GstIOSurfaceVulkanMemory *) mem,
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NULL);
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GST_ALLOCATOR_CLASS
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(gst_io_surface_vulkan_memory_allocator_parent_class)->free (allocator,
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mem);
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}
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static gpointer
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_io_surface_vulkan_memory_allocator_map (GstMemory * bmem,
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GstMapInfo * info, gsize size)
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{
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GstIOSurfaceVulkanMemory *mem = (GstIOSurfaceVulkanMemory *) bmem;
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GST_LOG ("mapping surface %p flags %d", mem->surface, info->flags);
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if (!(info->flags & GST_MAP_WRITE)) {
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IOSurfaceLock (mem->surface, kIOSurfaceLockReadOnly, NULL);
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return IOSurfaceGetBaseAddressOfPlane (mem->surface, mem->plane);
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} else {
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GST_ERROR ("couldn't map IOSurface %p flags %d", mem->surface, info->flags);
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return NULL;
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}
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}
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static void
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_io_surface_vulkan_memory_allocator_unmap (GstMemory * bmem, GstMapInfo * info)
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{
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GstIOSurfaceVulkanMemory *mem = (GstIOSurfaceVulkanMemory *) bmem;
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GST_LOG ("unmapping surface %p flags %d", mem->surface, info->flags);
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IOSurfaceUnlock (mem->surface, kIOSurfaceLockReadOnly, NULL);
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}
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static GstMemory *
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_mem_alloc (GstAllocator * allocator, gsize size, GstAllocationParams * params)
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{
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g_warning
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("use gst_io_surface_vulkan_memory_wrapped () to allocate from this "
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"IOSurface allocator");
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return NULL;
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}
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static void
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gst_io_surface_vulkan_memory_allocator_class_init
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(GstIOSurfaceVulkanMemoryAllocatorClass * klass)
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{
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GstAllocatorClass *allocator_class = (GstAllocatorClass *) klass;
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allocator_class->alloc = _mem_alloc;
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allocator_class->free = _mem_free;
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}
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static void
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gst_io_surface_vulkan_memory_allocator_init (GstIOSurfaceVulkanMemoryAllocator *
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allocator)
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{
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GstAllocator *alloc = GST_ALLOCATOR_CAST (allocator);
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alloc->mem_type = GST_IO_SURFACE_VULKAN_MEMORY_ALLOCATOR_NAME;
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GST_OBJECT_FLAG_SET (allocator, GST_ALLOCATOR_FLAG_CUSTOM_ALLOC);
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alloc->mem_map_full = _io_surface_vulkan_memory_allocator_map;
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alloc->mem_unmap_full = _io_surface_vulkan_memory_allocator_unmap;
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}
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void
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gst_io_surface_vulkan_memory_init (void)
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{
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static gsize _init = 0;
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if (g_once_init_enter (&_init)) {
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GST_DEBUG_CATEGORY_INIT (GST_CAT_IO_SURFACE_VULKAN_MEMORY,
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"iosurfacevulkan", 0, "IOSurface Vulkan Buffer");
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_io_surface_vulkan_memory_allocator =
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g_object_new (GST_TYPE_IO_SURFACE_VULKAN_MEMORY_ALLOCATOR, NULL);
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gst_object_ref_sink (_io_surface_vulkan_memory_allocator);
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gst_allocator_register (GST_IO_SURFACE_VULKAN_MEMORY_ALLOCATOR_NAME,
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gst_object_ref (_io_surface_vulkan_memory_allocator));
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g_once_init_leave (&_init, 1);
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}
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}
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gboolean
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gst_is_io_surface_vulkan_memory (GstMemory * mem)
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{
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return mem != NULL && mem->allocator != NULL &&
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g_type_is_a (G_OBJECT_TYPE (mem->allocator),
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GST_TYPE_IO_SURFACE_VULKAN_MEMORY_ALLOCATOR);
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}
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static GstIOSurfaceVulkanMemory *
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_io_surface_vulkan_memory_new (GstVulkanDevice * device, IOSurfaceRef surface,
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unsigned int /* MTLPixelFormat */ fmt, GstVideoInfo * info, guint plane,
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gpointer user_data, GDestroyNotify notify)
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{
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GstIOSurfaceVulkanMemory *mem;
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GstAllocationParams params = { 0, };
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VkImageCreateInfo image_info;
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VkPhysicalDevice gpu;
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VkImageUsageFlags usage;
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VkImageTiling tiling = VK_IMAGE_TILING_OPTIMAL;
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VkFormat vk_format;
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VkImage image;
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GError *error = NULL;
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VkResult err;
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mem = g_new0 (GstIOSurfaceVulkanMemory, 1);
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vk_format = metal_format_to_vulkan (fmt);
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/* FIXME: choose from outside */
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usage =
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VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_SAMPLED_BIT |
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VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT;
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/* *INDENT-OFF* */
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image_info = (VkImageCreateInfo) {
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.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
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.pNext = NULL,
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.flags = 0,
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.imageType = VK_IMAGE_TYPE_2D,
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.format = vk_format,
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/* MoltenVK double checks these against the IOSurface in vkUseIOSurface()
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* and will fail if they do not match */
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.extent = (VkExtent3D) { GST_VIDEO_INFO_COMP_WIDTH (info, plane), GST_VIDEO_INFO_COMP_HEIGHT (info, plane), 1 },
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.mipLevels = 1,
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.arrayLayers = 1,
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.samples = VK_SAMPLE_COUNT_1_BIT,
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.tiling = tiling,
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.usage = usage,
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.sharingMode = VK_SHARING_MODE_EXCLUSIVE,
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.queueFamilyIndexCount = 0,
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.pQueueFamilyIndices = NULL,
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.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED,
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};
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/* *INDENT-ON* */
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gpu = gst_vulkan_device_get_physical_device (device);
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err = vkCreateImage (device->device, &image_info, NULL, &image);
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if (gst_vulkan_error_to_g_error (err, &error, "vkCreateImage") < 0)
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goto vk_error;
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vkGetImageMemoryRequirements (device->device, image,
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&mem->vulkan_mem.requirements);
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gst_vulkan_image_memory_init (&mem->vulkan_mem,
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_io_surface_vulkan_memory_allocator, NULL, device, usage, ¶ms,
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mem->vulkan_mem.requirements.size, user_data, notify);
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mem->vulkan_mem.create_info = image_info;
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mem->vulkan_mem.image = image;
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mem->vulkan_mem.barrier.image_layout = VK_IMAGE_LAYOUT_GENERAL;
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err =
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vkGetPhysicalDeviceImageFormatProperties (gpu, vk_format,
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VK_IMAGE_TYPE_2D, tiling, usage, 0, &mem->vulkan_mem.format_properties);
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if (gst_vulkan_error_to_g_error (err, &error,
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"vkGetPhysicalDeviceImageFormatProperties") < 0)
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goto vk_error;
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GST_MINI_OBJECT_FLAG_SET (mem, GST_MEMORY_FLAG_READONLY);
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mem->surface = NULL;
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mem->plane = plane;
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gst_io_surface_vulkan_memory_set_surface (mem, surface);
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return mem;
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vk_error:
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{
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GST_CAT_ERROR (GST_CAT_IO_SURFACE_VULKAN_MEMORY,
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"Failed to allocate image memory %s", error->message);
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g_clear_error (&error);
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goto error;
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}
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error:
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{
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if (mem)
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gst_memory_unref ((GstMemory *) mem);
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return NULL;
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}
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}
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GstIOSurfaceVulkanMemory *
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gst_io_surface_vulkan_memory_wrapped (GstVulkanDevice * device,
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IOSurfaceRef surface, unsigned int /* MTLPixelFormat */ fmt,
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GstVideoInfo * info, guint plane, gpointer user_data, GDestroyNotify notify)
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{
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return _io_surface_vulkan_memory_new (device, surface, fmt, info, plane,
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user_data, notify);
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}
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