mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-11-18 15:51:11 +00:00
Code Issues 1 Projects Releases Wiki Activity
gstreamer/ext/vulkan/vkswapper.c
Matthew Waters 08fd5c2ae5 vulkan: update to release 1.0.1.1
2016-02-17 01:13:43 +11:00

1057 lines
32 KiB
C
Raw Blame History

/*
* GStreamer
* Copyright (C) 2015 Matthew Waters <matthew@centricular.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include "vkswapper.h"
#define GST_CAT_DEFAULT gst_vulkan_swapper_debug
GST_DEBUG_CATEGORY (GST_CAT_DEFAULT);
#define gst_vulkan_swapper_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE (GstVulkanSwapper, gst_vulkan_swapper,
GST_TYPE_OBJECT, GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT,
"vulkanswapper", 0, "Vulkan Swapper"));
#define RENDER_GET_LOCK(o) &(GST_VULKAN_SWAPPER (o)->priv->render_lock)
#define RENDER_LOCK(o) g_mutex_lock (RENDER_GET_LOCK(o));
#define RENDER_UNLOCK(o) g_mutex_unlock (RENDER_GET_LOCK(o));
struct _GstVulkanSwapperPrivate
{
GMutex render_lock;
};
static void _on_window_draw (GstVulkanWindow * window,
GstVulkanSwapper * swapper);
static gboolean
_get_function_table (GstVulkanSwapper * swapper)
{
GstVulkanDevice *device = swapper->device;
GstVulkanInstance *instance = gst_vulkan_device_get_instance (device);
if (!instance) {
GST_ERROR_OBJECT (swapper, "Failed to get instance from the device");
return FALSE;
}
#define GET_PROC_ADDRESS_REQUIRED(obj, type, name) \
G_STMT_START { \
obj->G_PASTE (, name) = G_PASTE(G_PASTE(gst_vulkan_, type), _get_proc_address) (type, "vk" G_STRINGIFY(name)); \
if (!obj->G_PASTE(, name)) { \
GST_ERROR_OBJECT (obj, "Failed to find required function vk" G_STRINGIFY(name)); \
gst_object_unref (instance); \
return FALSE; \
} \
} G_STMT_END
GET_PROC_ADDRESS_REQUIRED (swapper, instance,
GetPhysicalDeviceSurfaceSupportKHR);
GET_PROC_ADDRESS_REQUIRED (swapper, instance,
GetPhysicalDeviceSurfaceCapabilitiesKHR);
GET_PROC_ADDRESS_REQUIRED (swapper, instance,
GetPhysicalDeviceSurfaceFormatsKHR);
GET_PROC_ADDRESS_REQUIRED (swapper, instance,
GetPhysicalDeviceSurfacePresentModesKHR);
GET_PROC_ADDRESS_REQUIRED (swapper, device, CreateSwapchainKHR);
GET_PROC_ADDRESS_REQUIRED (swapper, device, DestroySwapchainKHR);
GET_PROC_ADDRESS_REQUIRED (swapper, device, GetSwapchainImagesKHR);
GET_PROC_ADDRESS_REQUIRED (swapper, device, AcquireNextImageKHR);
GET_PROC_ADDRESS_REQUIRED (swapper, device, QueuePresentKHR);
gst_object_unref (instance);
return TRUE;
#undef GET_PROC_ADDRESS_REQUIRED
}
static GstVideoFormat
_vk_format_to_video_format (VkFormat format)
{
switch (format) {
/* double check endianess */
case VK_FORMAT_R8G8B8A8_UNORM:
return GST_VIDEO_FORMAT_RGBA;
case VK_FORMAT_R8G8B8_UNORM:
return GST_VIDEO_FORMAT_RGB;
case VK_FORMAT_B8G8R8A8_UNORM:
return GST_VIDEO_FORMAT_BGRA;
case VK_FORMAT_B8G8R8_UNORM:
return GST_VIDEO_FORMAT_BGR;
default:
return GST_VIDEO_FORMAT_UNKNOWN;
}
}
static VkFormat
_vk_format_from_video_format (GstVideoFormat v_format)
{
switch (v_format) {
case GST_VIDEO_FORMAT_RGBA:
return VK_FORMAT_R8G8B8A8_UNORM;
case GST_VIDEO_FORMAT_RGB:
return VK_FORMAT_R8G8B8_UNORM;
case GST_VIDEO_FORMAT_BGRA:
return VK_FORMAT_B8G8R8A8_UNORM;
case GST_VIDEO_FORMAT_BGR:
return VK_FORMAT_B8G8R8_UNORM;
default:
return VK_FORMAT_UNDEFINED;
}
}
static VkColorSpaceKHR
_vk_color_space_from_video_info (GstVideoInfo * v_info)
{
return VK_COLORSPACE_SRGB_NONLINEAR_KHR;
}
static void
_add_vk_format_to_list (GValue * list, VkFormat format)
{
GstVideoFormat v_format;
const gchar *format_str;
v_format = _vk_format_to_video_format (format);
if (v_format) {
GValue item = G_VALUE_INIT;
g_value_init (&item, G_TYPE_STRING);
format_str = gst_video_format_to_string (v_format);
g_value_set_string (&item, format_str);
gst_value_list_append_value (list, &item);
g_value_unset (&item);
}
}
static gboolean
_vulkan_swapper_ensure_surface (GstVulkanSwapper * swapper, GError ** error)
{
if (!swapper->surface) {
if (!(swapper->surface =
gst_vulkan_window_get_surface (swapper->window, error))) {
return FALSE;
}
}
return TRUE;
}
static gboolean
_vulkan_swapper_retrieve_surface_properties (GstVulkanSwapper * swapper,
GError ** error)
{
guint32 i, present_queue = -1, graphics_queue = -1;
VkPhysicalDevice gpu;
VkResult err;
if (swapper->surf_formats)
return TRUE;
if (!_vulkan_swapper_ensure_surface (swapper, error))
return FALSE;
gpu = gst_vulkan_device_get_physical_device (swapper->device);
for (i = 0; i < swapper->device->n_queues; i++) {
gboolean supports_present;
supports_present =
gst_vulkan_window_get_presentation_support (swapper->window,
swapper->device, i);
if ((swapper->device->queue_family_props[i].
queueFlags & VK_QUEUE_GRAPHICS_BIT) != 0) {
if (supports_present) {
/* found one that supports both */
graphics_queue = present_queue = i;
break;
}
if (graphics_queue != -1)
graphics_queue = i;
} else if (supports_present) {
if (present_queue != -1)
present_queue = i;
}
}
if (graphics_queue != present_queue) {
/* FIXME: add support for separate graphics/present queues */
g_set_error (error, GST_VULKAN_ERROR,
VK_ERROR_INITIALIZATION_FAILED,
"Failed to find a compatible present/graphics queue");
return FALSE;
}
if (!(swapper->queue = gst_vulkan_device_get_queue (swapper->device,
swapper->device->queue_family_id, graphics_queue, error)))
return FALSE;
err =
swapper->GetPhysicalDeviceSurfaceCapabilitiesKHR (gpu, swapper->surface,
&swapper->surf_props);
if (gst_vulkan_error_to_g_error (err, error,
"GetPhysicalDeviceSurfaceCapabilitiesKHR") < 0)
return FALSE;
err =
swapper->GetPhysicalDeviceSurfaceFormatsKHR (gpu, swapper->surface,
&swapper->n_surf_formats, NULL);
if (gst_vulkan_error_to_g_error (err, error,
"GetPhysicalDeviceSurfaceFormatsKHR") < 0)
return FALSE;
swapper->surf_formats = g_new0 (VkSurfaceFormatKHR, swapper->n_surf_formats);
err =
swapper->GetPhysicalDeviceSurfaceFormatsKHR (gpu, swapper->surface,
&swapper->n_surf_formats, swapper->surf_formats);
if (gst_vulkan_error_to_g_error (err, error,
"GetPhysicalDeviceSurfaceFormatsKHR") < 0)
return FALSE;
err =
swapper->GetPhysicalDeviceSurfacePresentModesKHR (gpu, swapper->surface,
&swapper->n_surf_present_modes, NULL);
if (gst_vulkan_error_to_g_error (err, error,
"GetPhysicalDeviceSurfacePresentModesKHR") < 0)
return FALSE;
swapper->surf_present_modes =
g_new0 (VkPresentModeKHR, swapper->n_surf_present_modes);
err =
swapper->GetPhysicalDeviceSurfacePresentModesKHR (gpu, swapper->surface,
&swapper->n_surf_present_modes, swapper->surf_present_modes);
if (gst_vulkan_error_to_g_error (err, error,
"GetPhysicalDeviceSurfacePresentModesKHR") < 0)
return FALSE;
return TRUE;
}
static gboolean
_on_window_close (GstVulkanWindow * window, GstVulkanSwapper * swapper)
{
g_atomic_int_set (&swapper->to_quit, 1);
return TRUE;
}
static void
gst_vulkan_swapper_finalize (GObject * object)
{
GstVulkanSwapper *swapper = GST_VULKAN_SWAPPER (object);
int i;
if (swapper->swap_chain_images) {
for (i = 0; i < swapper->n_swap_chain_images; i++) {
gst_memory_unref ((GstMemory *) swapper->swap_chain_images[i]);
swapper->swap_chain_images[i] = NULL;
}
g_free (swapper->swap_chain_images);
}
swapper->swap_chain_images = NULL;
if (swapper->swap_chain)
swapper->DestroySwapchainKHR (swapper->device->device, swapper->swap_chain,
NULL);
swapper->swap_chain = VK_NULL_HANDLE;
if (swapper->queue)
gst_object_unref (swapper->queue);
swapper->queue = NULL;
if (swapper->device)
gst_object_unref (swapper->device);
swapper->device = NULL;
g_signal_handler_disconnect (swapper->window, swapper->draw_id);
swapper->draw_id = 0;
g_signal_handler_disconnect (swapper->window, swapper->close_id);
swapper->close_id = 0;
if (swapper->window)
gst_object_unref (swapper->window);
swapper->window = NULL;
g_free (swapper->surf_present_modes);
swapper->surf_present_modes = NULL;
g_free (swapper->surf_formats);
swapper->surf_formats = NULL;
gst_buffer_replace (&swapper->current_buffer, NULL);
gst_caps_replace (&swapper->caps, NULL);
g_mutex_clear (&swapper->priv->render_lock);
}
static void
gst_vulkan_swapper_init (GstVulkanSwapper * swapper)
{
swapper->priv =
G_TYPE_INSTANCE_GET_PRIVATE (swapper, GST_TYPE_VULKAN_SWAPPER,
GstVulkanSwapperPrivate);
g_mutex_init (&swapper->priv->render_lock);
}
static void
gst_vulkan_swapper_class_init (GstVulkanSwapperClass * klass)
{
g_type_class_add_private (klass, sizeof (GstVulkanSwapperPrivate));
G_OBJECT_CLASS (klass)->finalize = gst_vulkan_swapper_finalize;
}
GstVulkanSwapper *
gst_vulkan_swapper_new (GstVulkanDevice * device, GstVulkanWindow * window)
{
GstVulkanSwapper *swapper;
swapper = g_object_new (GST_TYPE_VULKAN_SWAPPER, NULL);
swapper->device = gst_object_ref (device);
swapper->window = gst_object_ref (window);
if (!_get_function_table (swapper)) {
gst_object_unref (swapper);
return NULL;
}
swapper->close_id = g_signal_connect (swapper->window, "close",
(GCallback) _on_window_close, swapper);
swapper->draw_id = g_signal_connect (swapper->window, "draw",
(GCallback) _on_window_draw, swapper);
return swapper;
}
GstCaps *
gst_vulkan_swapper_get_supported_caps (GstVulkanSwapper * swapper,
GError ** error)
{
GstStructure *s;
GstCaps *caps;
g_return_val_if_fail (GST_IS_VULKAN_SWAPPER (swapper), NULL);
if (!_vulkan_swapper_retrieve_surface_properties (swapper, error))
return NULL;
caps = gst_caps_new_empty_simple ("video/x-raw");
s = gst_caps_get_structure (caps, 0);
{
int i;
GValue list = G_VALUE_INIT;
g_value_init (&list, GST_TYPE_LIST);
if (swapper->n_surf_formats
&& swapper->surf_formats[0].format == VK_FORMAT_UNDEFINED) {
_add_vk_format_to_list (&list, VK_FORMAT_B8G8R8A8_UNORM);
} else {
for (i = 0; i < swapper->n_surf_formats; i++) {
_add_vk_format_to_list (&list, swapper->surf_formats[i].format);
}
}
gst_structure_set_value (s, "format", &list);
g_value_unset (&list);
}
{
guint32 max_dim = swapper->device->gpu_props.limits.maxImageDimension2D;
gst_structure_set (s, "width", GST_TYPE_INT_RANGE, 1, (gint) max_dim,
"height", GST_TYPE_INT_RANGE, 1, (gint) max_dim, "pixel-aspect-ratio",
GST_TYPE_FRACTION, 1, 1, "framerate", GST_TYPE_FRACTION_RANGE, 0, 1,
G_MAXINT, 1, NULL);
}
GST_INFO_OBJECT (swapper, "Probed the following caps %" GST_PTR_FORMAT, caps);
return caps;
}
static gboolean
_swapper_set_image_layout_with_cmd (GstVulkanSwapper * swapper,
VkCommandBuffer cmd, GstVulkanImageMemory * image,
VkImageLayout new_image_layout, GError ** error)
{
VkPipelineStageFlags src_stages = VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT;
VkPipelineStageFlags dest_stages = VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT;
VkImageMemoryBarrier image_memory_barrier;
gst_vulkan_image_memory_set_layout (image, new_image_layout,
&image_memory_barrier);
vkCmdPipelineBarrier (cmd, src_stages, dest_stages, 0, 0, NULL, 0, NULL, 1,
&image_memory_barrier);
return TRUE;
}
static gboolean
_new_fence (GstVulkanDevice * device, VkFence * fence, GError ** error)
{
VkFenceCreateInfo fence_info;
VkResult err;
fence_info.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
fence_info.pNext = NULL;
fence_info.flags = 0;
err = vkCreateFence (device->device, &fence_info, NULL, fence);
if (gst_vulkan_error_to_g_error (err, error, "vkCreateFence") < 0)
return FALSE;
return TRUE;
}
static gboolean
_swapper_set_image_layout (GstVulkanSwapper * swapper,
GstVulkanImageMemory * image, VkImageLayout new_image_layout,
GError ** error)
{
VkCommandBuffer cmd;
VkFence fence;
VkResult err;
if (!gst_vulkan_device_create_cmd_buffer (swapper->device, &cmd, error))
return FALSE;
if (!_new_fence (swapper->device, &fence, error))
return FALSE;
{
VkCommandBufferInheritanceInfo buf_inh = { 0, };
VkCommandBufferBeginInfo cmd_buf_info = { 0, };
buf_inh.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_INHERITANCE_INFO;
buf_inh.pNext = NULL;
buf_inh.renderPass = VK_NULL_HANDLE;
buf_inh.subpass = 0;
buf_inh.framebuffer = VK_NULL_HANDLE;
buf_inh.occlusionQueryEnable = FALSE;
buf_inh.queryFlags = 0;
buf_inh.pipelineStatistics = 0;
cmd_buf_info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
cmd_buf_info.pNext = NULL;
cmd_buf_info.flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT;
cmd_buf_info.pInheritanceInfo = &buf_inh;
err = vkBeginCommandBuffer (cmd, &cmd_buf_info);
if (gst_vulkan_error_to_g_error (err, error, "vkBeginCommandBuffer") < 0)
return FALSE;
}
if (!_swapper_set_image_layout_with_cmd (swapper, cmd, image,
new_image_layout, error))
return FALSE;
err = vkEndCommandBuffer (cmd);
if (gst_vulkan_error_to_g_error (err, error, "vkEndCommandBuffer") < 0)
return FALSE;
{
VkSubmitInfo submit_info = { 0, };
submit_info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submit_info.pNext = NULL;
submit_info.waitSemaphoreCount = 0;
submit_info.pWaitSemaphores = NULL;
submit_info.commandBufferCount = 1;
submit_info.pCommandBuffers = &cmd;
submit_info.signalSemaphoreCount = 0;
submit_info.pSignalSemaphores = NULL;
err = vkQueueSubmit (swapper->queue->queue, 1, &submit_info, fence);
if (gst_vulkan_error_to_g_error (err, error, "vkQueueSubmit") < 0)
return FALSE;
}
err = vkWaitForFences (swapper->device->device, 1, &fence, TRUE, -1);
if (gst_vulkan_error_to_g_error (err, error, "vkWaitForFences") < 0)
return FALSE;
vkFreeCommandBuffers (swapper->device->device, swapper->device->cmd_pool, 1,
&cmd);
vkDestroyFence (swapper->device->device, fence, NULL);
return TRUE;
}
static gboolean
_allocate_swapchain (GstVulkanSwapper * swapper, GstCaps * caps,
GError ** error)
{
VkSurfaceTransformFlagsKHR preTransform;
VkCompositeAlphaFlagsKHR alpha_flags;
VkPresentModeKHR present_mode;
VkImageUsageFlags usage = 0;
VkColorSpaceKHR color_space;
VkImage *swap_chain_images;
VkExtent2D swapchain_dims;
guint32 n_images_wanted;
VkPhysicalDevice gpu;
VkFormat format;
VkResult err;
guint32 i;
if (!_vulkan_swapper_ensure_surface (swapper, error))
return FALSE;
gpu = gst_vulkan_device_get_physical_device (swapper->device);
err =
swapper->GetPhysicalDeviceSurfaceCapabilitiesKHR (gpu,
swapper->surface, &swapper->surf_props);
if (gst_vulkan_error_to_g_error (err, error,
"GetPhysicalDeviceSurfaceCapabilitiesKHR") < 0)
return FALSE;
/* width and height are either both -1, or both not -1. */
if (swapper->surf_props.currentExtent.width == -1) {
/* If the surface size is undefined, the size is set to
* the size of the images requested. */
swapchain_dims.width = 320;
swapchain_dims.height = 240;
} else {
/* If the surface size is defined, the swap chain size must match */
swapchain_dims = swapper->surf_props.currentExtent;
}
/* If mailbox mode is available, use it, as is the lowest-latency non-
* tearing mode. If not, try IMMEDIATE which will usually be available,
* and is fastest (though it tears). If not, fall back to FIFO which is
* always available. */
present_mode = VK_PRESENT_MODE_FIFO_KHR;
for (gsize i = 0; i < swapper->n_surf_present_modes; i++) {
if (swapper->surf_present_modes[i] == VK_PRESENT_MODE_MAILBOX_KHR) {
present_mode = VK_PRESENT_MODE_MAILBOX_KHR;
break;
}
if ((present_mode != VK_PRESENT_MODE_MAILBOX_KHR) &&
(swapper->surf_present_modes[i] == VK_PRESENT_MODE_IMMEDIATE_KHR)) {
present_mode = VK_PRESENT_MODE_IMMEDIATE_KHR;
}
}
/* Determine the number of VkImage's to use in the swap chain (we desire to
* own only 1 image at a time, besides the images being displayed and
* queued for display): */
n_images_wanted = swapper->surf_props.minImageCount + 1;
if ((swapper->surf_props.maxImageCount > 0) &&
(n_images_wanted > swapper->surf_props.maxImageCount)) {
/* Application must settle for fewer images than desired: */
n_images_wanted = swapper->surf_props.maxImageCount;
}
if (swapper->
surf_props.supportedTransforms & VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR) {
preTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
} else {
preTransform = swapper->surf_props.currentTransform;
}
format =
_vk_format_from_video_format (GST_VIDEO_INFO_FORMAT (&swapper->v_info));
color_space = _vk_color_space_from_video_info (&swapper->v_info);
#if 1
/* FIXME: unsupported by LunarG's driver */
g_print ("alpha flags 0x%x\n",
(guint) swapper->surf_props.supportedCompositeAlpha);
if ((swapper->surf_props.supportedCompositeAlpha &
VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR) != 0) {
alpha_flags = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
} else if ((swapper->surf_props.supportedCompositeAlpha &
VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR) != 0) {
alpha_flags = VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR;
} else {
g_set_error (error, GST_VULKAN_ERROR,
VK_ERROR_INITIALIZATION_FAILED,
"Incorrect alpha flags available for the swap images");
return FALSE;
}
#else
alpha_flags = 0;
#endif
if ((swapper->surf_props.supportedUsageFlags &
VK_IMAGE_USAGE_TRANSFER_DST_BIT) != 0) {
usage |= VK_IMAGE_USAGE_TRANSFER_DST_BIT;
} else {
g_set_error (error, GST_VULKAN_ERROR,
VK_ERROR_INITIALIZATION_FAILED,
"Incorrect usage flags available for the swap images");
return FALSE;
}
if ((swapper->surf_props.
supportedUsageFlags & VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT)
!= 0) {
usage |= VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
} else {
g_set_error (error, GST_VULKAN_ERROR,
VK_ERROR_INITIALIZATION_FAILED,
"Incorrect usage flags available for the swap images");
return FALSE;
}
{
VkSwapchainCreateInfoKHR swap_chain_info = { 0, };
VkSwapchainKHR old_swap_chain;
old_swap_chain = swapper->swap_chain;
swap_chain_info.sType = VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR;
swap_chain_info.pNext = NULL;
swap_chain_info.surface = swapper->surface;
swap_chain_info.minImageCount = n_images_wanted;
swap_chain_info.imageFormat = format;
swap_chain_info.imageColorSpace = color_space;
swap_chain_info.imageExtent = swapchain_dims;
swap_chain_info.imageArrayLayers = 1;
swap_chain_info.imageUsage = usage;
swap_chain_info.imageSharingMode = VK_SHARING_MODE_EXCLUSIVE;
swap_chain_info.queueFamilyIndexCount = 0;
swap_chain_info.pQueueFamilyIndices = NULL;
swap_chain_info.preTransform = preTransform;
swap_chain_info.presentMode = present_mode;
swap_chain_info.compositeAlpha = alpha_flags;
swap_chain_info.clipped = TRUE;
swap_chain_info.oldSwapchain = swapper->swap_chain;
err =
swapper->CreateSwapchainKHR (swapper->device->device, &swap_chain_info,
NULL, &swapper->swap_chain);
if (gst_vulkan_error_to_g_error (err, error, "vkCreateSwapchainKHR") < 0)
return FALSE;
if (old_swap_chain != VK_NULL_HANDLE) {
swapper->DestroySwapchainKHR (swapper->device->device, old_swap_chain,
NULL);
}
}
err =
swapper->GetSwapchainImagesKHR (swapper->device->device,
swapper->swap_chain, &swapper->n_swap_chain_images, NULL);
if (gst_vulkan_error_to_g_error (err, error, "vkGetSwapchainImagesKHR") < 0)
return FALSE;
swap_chain_images = g_new0 (VkImage, swapper->n_swap_chain_images);
err =
swapper->GetSwapchainImagesKHR (swapper->device->device,
swapper->swap_chain, &swapper->n_swap_chain_images, swap_chain_images);
if (gst_vulkan_error_to_g_error (err, error, "vkGetSwapchainImagesKHR") < 0) {
g_free (swap_chain_images);
return FALSE;
}
swapper->swap_chain_images =
g_new0 (GstVulkanImageMemory *, swapper->n_swap_chain_images);
for (i = 0; i < swapper->n_swap_chain_images; i++) {
swapper->swap_chain_images[i] = (GstVulkanImageMemory *)
gst_vulkan_image_memory_wrapped (swapper->device, swap_chain_images[i],
format, swapchain_dims.width, swapchain_dims.height,
VK_IMAGE_TILING_OPTIMAL, usage, NULL, NULL);
if (!_swapper_set_image_layout (swapper, swapper->swap_chain_images[i],
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL, error)) {
g_free (swap_chain_images);
return FALSE;
}
}
g_free (swap_chain_images);
return TRUE;
}
static gboolean
_swapchain_resize (GstVulkanSwapper * swapper, GError ** error)
{
int i;
if (!swapper->queue) {
if (!_vulkan_swapper_retrieve_surface_properties (swapper, error)) {
return FALSE;
}
}
if (swapper->swap_chain_images) {
for (i = 0; i < swapper->n_swap_chain_images; i++) {
if (swapper->swap_chain_images[i])
gst_memory_unref ((GstMemory *) swapper->swap_chain_images[i]);
}
g_free (swapper->swap_chain_images);
}
return _allocate_swapchain (swapper, swapper->caps, error);
}
gboolean
gst_vulkan_swapper_set_caps (GstVulkanSwapper * swapper, GstCaps * caps,
GError ** error)
{
if (!gst_video_info_from_caps (&swapper->v_info, caps)) {
g_set_error (error, GST_VULKAN_ERROR,
VK_ERROR_INITIALIZATION_FAILED,
"Failed to geto GstVideoInfo from caps");
return FALSE;
}
gst_caps_replace (&swapper->caps, caps);
return _swapchain_resize (swapper, error);
}
struct cmd_data
{
VkCommandBuffer cmd;
VkFence fence;
GDestroyNotify notify;
gpointer data;
};
static gboolean
_build_render_buffer_cmd (GstVulkanSwapper * swapper, guint32 swap_idx,
GstBuffer * buffer, struct cmd_data *cmd_data, GError ** error)
{
VkImageSubresource subres = { 0, };
GstVulkanImageMemory *swap_mem, *staging;
GstMapInfo staging_map_info;
VkSubresourceLayout layout;
GstVideoFrame vframe;
guint8 *src, *dest;
VkCommandBuffer cmd;
guint32 wt, ht;
VkResult err;
gsize h;
GST_VK_IMAGE_SUBRESOURCE (subres, VK_IMAGE_ASPECT_COLOR_BIT, 0, 0);
g_return_val_if_fail (swap_idx < swapper->n_swap_chain_images, FALSE);
swap_mem = swapper->swap_chain_images[swap_idx];
if (!gst_vulkan_device_create_cmd_buffer (swapper->device, &cmd, error))
return FALSE;
if (!gst_video_frame_map (&vframe, &swapper->v_info, buffer, GST_MAP_READ)) {
g_set_error (error, GST_VULKAN_ERROR, VK_ERROR_MEMORY_MAP_FAILED,
"Failed to map buffer");
return FALSE;
}
staging =
(GstVulkanImageMemory *) gst_vulkan_image_memory_alloc (swapper->device,
swap_mem->create_info.format, GST_VIDEO_FRAME_COMP_WIDTH (&vframe, 0),
GST_VIDEO_FRAME_COMP_HEIGHT (&vframe, 0), VK_IMAGE_TILING_LINEAR,
VK_IMAGE_USAGE_TRANSFER_SRC_BIT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT);
if (!staging) {
g_set_error (error, GST_VULKAN_ERROR, VK_ERROR_MEMORY_MAP_FAILED,
"Failed to create staging memory");
gst_video_frame_unmap (&vframe);
return FALSE;
}
if (!gst_memory_map ((GstMemory *) staging, &staging_map_info, GST_MAP_WRITE)) {
g_set_error (error, GST_VULKAN_ERROR, VK_ERROR_MEMORY_MAP_FAILED,
"Failed to map swap image");
gst_video_frame_unmap (&vframe);
gst_memory_unref ((GstMemory *) staging);
return FALSE;
}
vkGetImageSubresourceLayout (swapper->device->device, staging->image, &subres,
&layout);
/* FIXME: multi-planar formats */
dest = staging_map_info.data;
dest += layout.offset;
src = vframe.data[0];
for (h = 0; h < GST_VIDEO_FRAME_COMP_HEIGHT (&vframe, 0); h++) {
/* FIXME: memcpy */
memcpy (dest, src, GST_VIDEO_FRAME_PLANE_STRIDE (&vframe, 0));
dest += layout.rowPitch;
src += GST_VIDEO_FRAME_PLANE_STRIDE (&vframe, 0);
g_assert (dest - staging_map_info.data - layout.offset <= layout.size);
}
gst_video_frame_unmap (&vframe);
gst_memory_unmap ((GstMemory *) staging, &staging_map_info);
{
VkCommandBufferInheritanceInfo buf_inh = { 0, };
VkCommandBufferBeginInfo cmd_buf_info = { 0, };
buf_inh.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_INHERITANCE_INFO;
buf_inh.pNext = NULL;
buf_inh.renderPass = VK_NULL_HANDLE;
buf_inh.subpass = 0;
buf_inh.framebuffer = VK_NULL_HANDLE;
buf_inh.occlusionQueryEnable = FALSE;
buf_inh.queryFlags = 0;
buf_inh.pipelineStatistics = 0;
cmd_buf_info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
cmd_buf_info.pNext = NULL;
cmd_buf_info.flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT;
cmd_buf_info.pInheritanceInfo = &buf_inh;
err = vkBeginCommandBuffer (cmd, &cmd_buf_info);
if (gst_vulkan_error_to_g_error (err, error, "vkBeginCommandBuffer") < 0)
return FALSE;
}
if (!_swapper_set_image_layout_with_cmd (swapper, cmd, swap_mem,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, error)) {
return FALSE;
}
if (!_swapper_set_image_layout_with_cmd (swapper, cmd, staging,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, error)) {
return FALSE;
}
/* FIXME: center rect */
#if 0
/* XXX: doesn't work with LunarG's example driver. According to LunarG,
* it's not implemented */
{
VkImageBlit blit_image = { 0, };
GST_VK_IMAGE_SUBRESOURCE_LAYERS (blit_image.srcSubresource,
VK_IMAGE_ASPECT_COLOR_BIT, 0, 0, 1);
GST_VK_OFFSET3D (blit_image.srcOffset, 0, 0, 0);
GST_VK_EXTENT3D (blit_image.srcExtent,
GST_VIDEO_INFO_WIDTH (&swapper->v_info),
GST_VIDEO_INFO_HEIGHT (&swapper->v_info), 1);
GST_VK_IMAGE_SUBRESOURCE_LAYERS (blit_image.dstSubresource,
VK_IMAGE_ASPECT_COLOR_BIT, 0, 0, 1);
GST_VK_OFFSET3D (blit_image.dstOffset, 0, 0, 0);
GST_VK_EXTENT3D (blit_image.dstExtent, swap_mem->create_info.extent.width,
swap_mem->create_info.extent.height, 1);
/* FIXME: copy */
vkCmdBlitImage (cmd, staging->image,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, swap_mem->image,
VK_IMAGE_LAYOUT_GENERAL, 1, &blit_image, VK_TEX_FILTER_LINEAR);
}
#else
wt = MIN (swap_mem->create_info.extent.width,
GST_VIDEO_INFO_WIDTH (&swapper->v_info));
ht = MIN (swap_mem->create_info.extent.height,
GST_VIDEO_INFO_HEIGHT (&swapper->v_info));
{
VkImageCopy copy_image = { 0, };
GST_VK_IMAGE_SUBRESOURCE_LAYERS (copy_image.srcSubresource,
VK_IMAGE_ASPECT_COLOR_BIT, 0, 0, 1);
GST_VK_OFFSET3D (copy_image.srcOffset, 0, 0, 0);
GST_VK_IMAGE_SUBRESOURCE_LAYERS (copy_image.dstSubresource,
VK_IMAGE_ASPECT_COLOR_BIT, 0, 0, 1);
GST_VK_OFFSET3D (copy_image.dstOffset, 0, 0, 0);
GST_VK_EXTENT3D (copy_image.extent, wt, ht, 1);
/* FIXME: copy */
vkCmdCopyImage (cmd, staging->image,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, swap_mem->image,
VK_IMAGE_LAYOUT_GENERAL, 1, &copy_image);
}
#endif
if (!_swapper_set_image_layout_with_cmd (swapper, cmd, staging,
VK_IMAGE_LAYOUT_PRESENT_SRC_KHR, error)) {
return FALSE;
}
err = vkEndCommandBuffer (cmd);
if (gst_vulkan_error_to_g_error (err, error, "vkEndCommandBuffer") < 0)
return FALSE;
cmd_data->cmd = cmd;
cmd_data->notify = (GDestroyNotify) gst_memory_unref;
cmd_data->data = staging;
if (!_new_fence (swapper->device, &cmd_data->fence, error)) {
return FALSE;
}
return TRUE;
}
static gboolean
_render_buffer_unlocked (GstVulkanSwapper * swapper,
GstBuffer * buffer, GError ** error)
{
VkSemaphore semaphore = { 0, };
VkSemaphoreCreateInfo semaphore_info = { 0, };
VkPresentInfoKHR present;
struct cmd_data cmd_data = { 0, };
guint32 swap_idx;
VkResult err, present_err;
semaphore_info.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
semaphore_info.pNext = NULL;
semaphore_info.flags = 0;
if (!buffer) {
g_set_error (error, GST_VULKAN_ERROR,
VK_ERROR_INITIALIZATION_FAILED, "Invalid buffer");
goto error;
}
if (g_atomic_int_get (&swapper->to_quit)) {
g_set_error (error, GST_VULKAN_ERROR, VK_ERROR_SURFACE_LOST_KHR,
"Output window was closed");
goto error;
}
gst_buffer_replace (&swapper->current_buffer, buffer);
reacquire:
err = vkCreateSemaphore (swapper->device->device, &semaphore_info,
NULL, &semaphore);
if (gst_vulkan_error_to_g_error (err, error, "vkCreateSemaphore") < 0)
goto error;
err =
swapper->AcquireNextImageKHR (swapper->device->device,
swapper->swap_chain, -1, semaphore, VK_NULL_HANDLE, &swap_idx);
/* TODO: Deal with the VK_SUBOPTIMAL_KHR and VK_ERROR_OUT_OF_DATE_KHR */
if (err == VK_ERROR_OUT_OF_DATE_KHR) {
GST_DEBUG_OBJECT (swapper, "out of date frame acquired");
vkDestroySemaphore (swapper->device->device, semaphore, NULL);
if (!_swapchain_resize (swapper, error))
goto error;
goto reacquire;
} else if (gst_vulkan_error_to_g_error (err, error,
"vkAcquireNextImageKHR") < 0) {
goto error;
}
if (!_build_render_buffer_cmd (swapper, swap_idx, buffer, &cmd_data, error))
goto error;
{
VkSubmitInfo submit_info = { 0, };
submit_info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submit_info.pNext = NULL;
submit_info.waitSemaphoreCount = 1;
submit_info.pWaitSemaphores = &semaphore;
submit_info.commandBufferCount = 1;
submit_info.pCommandBuffers = &cmd_data.cmd;
submit_info.signalSemaphoreCount = 0;
submit_info.pSignalSemaphores = NULL;
err =
vkQueueSubmit (swapper->queue->queue, 1, &submit_info, cmd_data.fence);
if (gst_vulkan_error_to_g_error (err, error, "vkQueueSubmit") < 0) {
return FALSE;
}
}
present.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
present.pNext = NULL;
present.waitSemaphoreCount = 0;
present.pWaitSemaphores = NULL;
present.swapchainCount = 1;
present.pSwapchains = &swapper->swap_chain;
present.pImageIndices = &swap_idx;
present.pResults = &present_err;
err = swapper->QueuePresentKHR (swapper->queue->queue, &present);
if (err == VK_ERROR_OUT_OF_DATE_KHR) {
GST_DEBUG_OBJECT (swapper, "out of date frame submitted");
if (!_swapchain_resize (swapper, error))
goto error;
} else if (gst_vulkan_error_to_g_error (err, error, "vkQueuePresentKHR") < 0)
goto error;
err = vkWaitForFences (swapper->device->device, 1, &cmd_data.fence, TRUE, -1);
if (gst_vulkan_error_to_g_error (err, error, "vkWaitForFences") < 0)
goto error;
if (semaphore)
vkDestroySemaphore (swapper->device->device, semaphore, NULL);
if (cmd_data.cmd)
vkFreeCommandBuffers (swapper->device->device, swapper->device->cmd_pool,
1, &cmd_data.cmd);
if (cmd_data.fence)
vkDestroyFence (swapper->device->device, cmd_data.fence, NULL);
if (cmd_data.notify)
cmd_data.notify (cmd_data.data);
return TRUE;
error:
{
if (semaphore)
vkDestroySemaphore (swapper->device->device, semaphore, NULL);
if (cmd_data.cmd)
vkFreeCommandBuffers (swapper->device->device, swapper->device->cmd_pool,
1, &cmd_data.cmd);
if (cmd_data.fence)
vkDestroyFence (swapper->device->device, cmd_data.fence, NULL);
if (cmd_data.notify)
cmd_data.notify (cmd_data.data);
return FALSE;
}
}
gboolean
gst_vulkan_swapper_render_buffer (GstVulkanSwapper * swapper,
GstBuffer * buffer, GError ** error)
{
gboolean ret;
RENDER_LOCK (swapper);
ret = _render_buffer_unlocked (swapper, buffer, error);
RENDER_UNLOCK (swapper);
return ret;
}
static void
_on_window_draw (GstVulkanWindow * window, GstVulkanSwapper * swapper)
{
GError *error = NULL;
RENDER_LOCK (swapper);
if (!swapper->current_buffer) {
RENDER_UNLOCK (swapper);
return;
}
/* TODO: perform some rate limiting of the number of redraw events */
if (!_render_buffer_unlocked (swapper, swapper->current_buffer, &error))
GST_ERROR_OBJECT (swapper, "Failed to redraw buffer %p %s",
swapper->current_buffer, error->message);
RENDER_UNLOCK (swapper);
}
Reference in a new issue View git blame Copy permalink