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gstreamer/gst-libs/gst/vulkan/gstvkswapper.c
Matthew Waters db157428ee vulkan/ios: keep track of surface changes
2019-08-14 13:45:31 +10:00

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/*
* 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 "gstvkswapper.h"
#define GST_CAT_DEFAULT gst_vulkan_swapper_debug
GST_DEBUG_CATEGORY (GST_CAT_DEFAULT);
#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
{
VkSurfaceKHR surface;
VkSurfaceCapabilitiesKHR surf_props;
VkSurfaceFormatKHR *surf_formats;
guint32 n_surf_formats;
VkPresentModeKHR *surf_present_modes;
guint32 n_surf_present_modes;
VkSwapchainKHR swap_chain;
GstVulkanImageMemory **swap_chain_images;
guint32 n_swap_chain_images;
GstCaps *caps;
GstVideoInfo v_info;
PFN_vkGetPhysicalDeviceSurfaceSupportKHR GetPhysicalDeviceSurfaceSupportKHR;
PFN_vkGetPhysicalDeviceSurfaceCapabilitiesKHR
GetPhysicalDeviceSurfaceCapabilitiesKHR;
PFN_vkGetPhysicalDeviceSurfaceFormatsKHR GetPhysicalDeviceSurfaceFormatsKHR;
PFN_vkGetPhysicalDeviceSurfacePresentModesKHR
GetPhysicalDeviceSurfacePresentModesKHR;
PFN_vkCreateSwapchainKHR CreateSwapchainKHR;
PFN_vkDestroySwapchainKHR DestroySwapchainKHR;
PFN_vkGetSwapchainImagesKHR GetSwapchainImagesKHR;
PFN_vkAcquireNextImageKHR AcquireNextImageKHR;
PFN_vkQueuePresentKHR QueuePresentKHR;
/* <private> */
/* runtime variables */
gint to_quit;
GstBuffer *current_buffer;
gboolean any_current_extent;
/* signal handlers */
gulong close_id;
gulong draw_id;
gulong resize_id;
/* properties */
gboolean force_aspect_ratio;
gint par_n;
gint par_d;
GMutex render_lock;
GstVulkanTrashList *trash_list;
/* source sizes accounting for all aspect ratios */
guint dar_width;
guint dar_height;
};
enum
{
PROP_0,
PROP_FORCE_ASPECT_RATIO,
PROP_PIXEL_ASPECT_RATIO,
};
#define DEFAULT_FORCE_ASPECT_RATIO TRUE
#define DEFAULT_PIXEL_ASPECT_RATIO_N 0
#define DEFAULT_PIXEL_ASPECT_RATIO_D 1
#define gst_vulkan_swapper_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE (GstVulkanSwapper, gst_vulkan_swapper,
GST_TYPE_OBJECT, G_ADD_PRIVATE (GstVulkanSwapper)
GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT,
"vulkanswapper", 0, "Vulkan Swapper"));
static void _on_window_draw (GstVulkanWindow * window,
GstVulkanSwapper * swapper);
static void _on_window_resize (GstVulkanWindow * window,
guint width, guint height, 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->priv->G_PASTE (, name) = G_PASTE(G_PASTE(gst_vulkan_, type), _get_proc_address) (type, "vk" G_STRINGIFY(name)); \
if (!obj->priv->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:
case VK_FORMAT_R8G8B8A8_SRGB:
return GST_VIDEO_FORMAT_RGBA;
case VK_FORMAT_R8G8B8_UNORM:
case VK_FORMAT_R8G8B8_SRGB:
return GST_VIDEO_FORMAT_RGB;
case VK_FORMAT_B8G8R8A8_UNORM:
case VK_FORMAT_B8G8R8A8_SRGB:
return GST_VIDEO_FORMAT_BGRA;
case VK_FORMAT_B8G8R8_UNORM:
case VK_FORMAT_B8G8R8_SRGB:
return GST_VIDEO_FORMAT_BGR;
default:
return GST_VIDEO_FORMAT_UNKNOWN;
}
}
static VkFormat
_vk_format_from_video_info (GstVideoInfo * v_info)
{
switch (GST_VIDEO_INFO_FORMAT (v_info)) {
case GST_VIDEO_FORMAT_RGBA:
if (GST_VIDEO_INFO_COLORIMETRY (v_info).transfer ==
GST_VIDEO_TRANSFER_SRGB)
return VK_FORMAT_R8G8B8A8_SRGB;
else
return VK_FORMAT_R8G8B8A8_UNORM;
case GST_VIDEO_FORMAT_RGB:
if (GST_VIDEO_INFO_COLORIMETRY (v_info).transfer ==
GST_VIDEO_TRANSFER_SRGB)
return VK_FORMAT_R8G8B8_SRGB;
else
return VK_FORMAT_R8G8B8_UNORM;
case GST_VIDEO_FORMAT_BGRA:
if (GST_VIDEO_INFO_COLORIMETRY (v_info).transfer ==
GST_VIDEO_TRANSFER_SRGB)
return VK_FORMAT_B8G8R8A8_SRGB;
else
return VK_FORMAT_B8G8R8A8_UNORM;
case GST_VIDEO_FORMAT_BGR:
if (GST_VIDEO_INFO_COLORIMETRY (v_info).transfer ==
GST_VIDEO_TRANSFER_SRGB)
return VK_FORMAT_B8G8R8_SRGB;
else
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;
v_format = _vk_format_to_video_format (format);
if (v_format) {
const gchar *format_str = gst_video_format_to_string (v_format);
GValue item = G_VALUE_INIT;
GValue new_list = G_VALUE_INIT;
g_value_init (&item, G_TYPE_STRING);
g_value_set_string (&item, format_str);
gst_value_list_merge (&new_list, list, &item);
g_value_unset (&item);
g_value_unset (list);
*list = new_list;
}
}
static gboolean
_vulkan_swapper_ensure_surface (GstVulkanSwapper * swapper, GError ** error)
{
if (!swapper->priv->surface) {
if (!(swapper->priv->surface =
gst_vulkan_window_get_surface (swapper->window, error))) {
return FALSE;
}
}
return TRUE;
}
struct choose_data
{
GstVulkanSwapper *swapper;
GstVulkanQueue *graphics_queue;
GstVulkanQueue *present_queue;
};
static gboolean
_choose_queue (GstVulkanDevice * device, GstVulkanQueue * queue,
struct choose_data *data)
{
guint flags = device->queue_family_props[queue->family].queueFlags;
VkPhysicalDevice gpu;
gboolean supports_present;
gpu = gst_vulkan_device_get_physical_device (data->swapper->device);
{
VkResult err;
GError *error = NULL;
VkBool32 physical_device_supported;
err =
data->swapper->priv->GetPhysicalDeviceSurfaceSupportKHR (gpu,
queue->index, data->swapper->priv->surface, &physical_device_supported);
if (gst_vulkan_error_to_g_error (err, &error,
"GetPhysicalDeviceSurfaceSupport") < 0) {
GST_DEBUG_OBJECT (data->swapper,
"surface not supported by the physical device: %s", error->message);
return TRUE;
}
}
supports_present =
gst_vulkan_window_get_presentation_support (data->swapper->window,
device, queue->index);
if ((flags & VK_QUEUE_GRAPHICS_BIT) != 0) {
if (supports_present) {
/* found one that supports both */
if (data->graphics_queue)
gst_object_unref (data->graphics_queue);
data->graphics_queue = gst_object_ref (queue);
if (data->present_queue)
gst_object_unref (data->present_queue);
data->present_queue = gst_object_ref (queue);
return FALSE;
}
if (!data->graphics_queue)
data->present_queue = gst_object_ref (queue);
} else if (supports_present) {
if (!data->present_queue)
data->present_queue = gst_object_ref (queue);
}
return TRUE;
}
/*
* gst_vulkan_swapper_choose_queue:
* @swapper: a #GstVulkanSwapper
* @available_queue: (transfer none): a #GstVulkanQueue chosen elsewhere
* @error: a #GError
*/
gboolean
gst_vulkan_swapper_choose_queue (GstVulkanSwapper * swapper,
GstVulkanQueue * available_queue, GError ** error)
{
if (!_vulkan_swapper_ensure_surface (swapper, error))
return FALSE;
if (swapper->queue)
return TRUE;
if (available_queue) {
guint flags =
swapper->device->queue_family_props[available_queue->family].queueFlags;
gboolean supports_present;
supports_present =
gst_vulkan_window_get_presentation_support (swapper->window,
swapper->device, available_queue->index);
if (supports_present && flags & VK_QUEUE_GRAPHICS_BIT)
swapper->queue = gst_object_ref (available_queue);
}
if (!swapper->queue) {
struct choose_data data;
data.swapper = swapper;
data.present_queue = NULL;
data.graphics_queue = NULL;
gst_vulkan_device_foreach_queue (swapper->device,
(GstVulkanDeviceForEachQueueFunc) _choose_queue, &data);
if (data.graphics_queue != data.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");
if (data.present_queue)
gst_object_unref (data.present_queue);
if (data.graphics_queue)
gst_object_unref (data.graphics_queue);
return FALSE;
}
swapper->queue = gst_object_ref (data.present_queue);
if (data.present_queue)
gst_object_unref (data.present_queue);
if (data.graphics_queue)
gst_object_unref (data.graphics_queue);
}
return TRUE;
}
static gboolean
_vulkan_swapper_retrieve_surface_properties (GstVulkanSwapper * swapper,
GError ** error)
{
VkPhysicalDevice gpu;
VkResult err;
if (swapper->priv->surf_formats)
return TRUE;
gpu = gst_vulkan_device_get_physical_device (swapper->device);
if (!gst_vulkan_swapper_choose_queue (swapper, NULL, error))
return FALSE;
if (!(swapper->cmd_pool =
gst_vulkan_queue_create_command_pool (swapper->queue, error)))
return FALSE;
err =
swapper->priv->GetPhysicalDeviceSurfaceCapabilitiesKHR (gpu,
swapper->priv->surface, &swapper->priv->surf_props);
if (gst_vulkan_error_to_g_error (err, error,
"GetPhysicalDeviceSurfaceCapabilitiesKHR") < 0)
return FALSE;
err =
swapper->priv->GetPhysicalDeviceSurfaceFormatsKHR (gpu,
swapper->priv->surface, &swapper->priv->n_surf_formats, NULL);
if (gst_vulkan_error_to_g_error (err, error,
"GetPhysicalDeviceSurfaceFormatsKHR") < 0)
return FALSE;
swapper->priv->surf_formats =
g_new0 (VkSurfaceFormatKHR, swapper->priv->n_surf_formats);
err =
swapper->priv->GetPhysicalDeviceSurfaceFormatsKHR (gpu,
swapper->priv->surface, &swapper->priv->n_surf_formats,
swapper->priv->surf_formats);
if (gst_vulkan_error_to_g_error (err, error,
"GetPhysicalDeviceSurfaceFormatsKHR") < 0)
return FALSE;
err =
swapper->priv->GetPhysicalDeviceSurfacePresentModesKHR (gpu,
swapper->priv->surface, &swapper->priv->n_surf_present_modes, NULL);
if (gst_vulkan_error_to_g_error (err, error,
"GetPhysicalDeviceSurfacePresentModesKHR") < 0)
return FALSE;
swapper->priv->surf_present_modes =
g_new0 (VkPresentModeKHR, swapper->priv->n_surf_present_modes);
err =
swapper->priv->GetPhysicalDeviceSurfacePresentModesKHR (gpu,
swapper->priv->surface, &swapper->priv->n_surf_present_modes,
swapper->priv->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->priv->to_quit, 1);
return TRUE;
}
static void
gst_vulkan_swapper_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstVulkanSwapper *swapper = GST_VULKAN_SWAPPER (object);
switch (prop_id) {
case PROP_FORCE_ASPECT_RATIO:
swapper->priv->force_aspect_ratio = g_value_get_boolean (value);
break;
case PROP_PIXEL_ASPECT_RATIO:
swapper->priv->par_n = gst_value_get_fraction_numerator (value);
swapper->priv->par_d = gst_value_get_fraction_denominator (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_vulkan_swapper_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstVulkanSwapper *swapper = GST_VULKAN_SWAPPER (object);
switch (prop_id) {
case PROP_FORCE_ASPECT_RATIO:
g_value_set_boolean (value, swapper->priv->force_aspect_ratio);
break;
case PROP_PIXEL_ASPECT_RATIO:
gst_value_set_fraction (value, swapper->priv->par_n,
swapper->priv->par_d);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_vulkan_swapper_finalize (GObject * object)
{
GstVulkanSwapper *swapper = GST_VULKAN_SWAPPER (object);
int i;
if (!gst_vulkan_trash_list_wait (swapper->priv->trash_list, -1))
GST_WARNING_OBJECT (swapper, "Failed to wait for all fences to complete "
"before shutting down");
gst_object_unref (swapper->priv->trash_list);
swapper->priv->trash_list = NULL;
if (swapper->priv->swap_chain_images) {
for (i = 0; i < swapper->priv->n_swap_chain_images; i++) {
gst_memory_unref ((GstMemory *) swapper->priv->swap_chain_images[i]);
swapper->priv->swap_chain_images[i] = NULL;
}
g_free (swapper->priv->swap_chain_images);
}
swapper->priv->swap_chain_images = NULL;
if (swapper->priv->swap_chain)
swapper->priv->DestroySwapchainKHR (swapper->device->device,
swapper->priv->swap_chain, NULL);
swapper->priv->swap_chain = VK_NULL_HANDLE;
g_free (swapper->priv->surf_present_modes);
swapper->priv->surf_present_modes = NULL;
g_free (swapper->priv->surf_formats);
swapper->priv->surf_formats = NULL;
gst_buffer_replace (&swapper->priv->current_buffer, NULL);
gst_caps_replace (&swapper->priv->caps, NULL);
g_mutex_clear (&swapper->priv->render_lock);
if (swapper->cmd_pool)
gst_object_unref (swapper->cmd_pool);
swapper->cmd_pool = NULL;
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->priv->draw_id);
swapper->priv->draw_id = 0;
g_signal_handler_disconnect (swapper->window, swapper->priv->close_id);
swapper->priv->close_id = 0;
g_signal_handler_disconnect (swapper->window, swapper->priv->resize_id);
swapper->priv->resize_id = 0;
if (swapper->window)
gst_object_unref (swapper->window);
swapper->window = NULL;
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_vulkan_swapper_init (GstVulkanSwapper * swapper)
{
swapper->priv = gst_vulkan_swapper_get_instance_private (swapper);
g_mutex_init (&swapper->priv->render_lock);
swapper->priv->force_aspect_ratio = DEFAULT_FORCE_ASPECT_RATIO;
swapper->priv->par_n = DEFAULT_PIXEL_ASPECT_RATIO_N;
swapper->priv->par_d = DEFAULT_PIXEL_ASPECT_RATIO_D;
swapper->priv->trash_list = gst_vulkan_trash_fence_list_new ();
}
static void
gst_vulkan_swapper_class_init (GstVulkanSwapperClass * klass)
{
GObjectClass *gobject_class = (GObjectClass *) klass;
gobject_class->set_property = gst_vulkan_swapper_set_property;
gobject_class->get_property = gst_vulkan_swapper_get_property;
gobject_class->finalize = gst_vulkan_swapper_finalize;
g_object_class_install_property (gobject_class, PROP_FORCE_ASPECT_RATIO,
g_param_spec_boolean ("force-aspect-ratio", "Force aspect ratio",
"When enabled, scaling will respect original aspect ratio",
DEFAULT_FORCE_ASPECT_RATIO,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_PIXEL_ASPECT_RATIO,
gst_param_spec_fraction ("pixel-aspect-ratio", "Pixel Aspect Ratio",
"The pixel aspect ratio of the device", 0, 1, G_MAXINT, 1, 1, 1,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
}
GstVulkanSwapper *
gst_vulkan_swapper_new (GstVulkanDevice * device, GstVulkanWindow * window)
{
GstVulkanSwapper *swapper;
swapper = g_object_new (GST_TYPE_VULKAN_SWAPPER, NULL);
gst_object_ref_sink (swapper);
swapper->device = gst_object_ref (device);
swapper->window = gst_object_ref (window);
if (!_get_function_table (swapper)) {
gst_object_unref (swapper);
return NULL;
}
swapper->priv->close_id = g_signal_connect (swapper->window, "close",
(GCallback) _on_window_close, swapper);
swapper->priv->draw_id = g_signal_connect (swapper->window, "draw",
(GCallback) _on_window_draw, swapper);
swapper->priv->resize_id = g_signal_connect (swapper->window, "resize",
(GCallback) _on_window_resize, 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");
gst_caps_set_features (caps, 0,
gst_caps_features_from_string (GST_CAPS_FEATURE_MEMORY_VULKAN_IMAGE));
s = gst_caps_get_structure (caps, 0);
{
int i;
GValue list = G_VALUE_INIT;
g_value_init (&list, GST_TYPE_LIST);
if (swapper->priv->n_surf_formats
&& swapper->priv->surf_formats[0].format == VK_FORMAT_UNDEFINED) {
_add_vk_format_to_list (&list, VK_FORMAT_B8G8R8A8_UNORM);
} else {
for (i = 0; i < swapper->priv->n_surf_formats; i++) {
_add_vk_format_to_list (&list, swapper->priv->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
_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->priv->GetPhysicalDeviceSurfaceCapabilitiesKHR (gpu,
swapper->priv->surface, &swapper->priv->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->priv->surf_props.currentExtent.width == -1) {
/* If the surface size is undefined, the size is set to
* the size of the images requested. */
guint width, height;
gst_vulkan_window_get_surface_dimensions (swapper->window, &width, &height);
swapchain_dims.width = width;
swapchain_dims.height = height;
swapper->priv->any_current_extent = TRUE;
} else {
/* If the surface size is defined, the swap chain size must match */
swapchain_dims = swapper->priv->surf_props.currentExtent;
swapper->priv->any_current_extent = FALSE;
}
/* 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 (i = 0; i < swapper->priv->n_surf_present_modes; i++) {
if (swapper->priv->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->priv->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->priv->surf_props.minImageCount + 1;
if ((swapper->priv->surf_props.maxImageCount > 0) &&
(n_images_wanted > swapper->priv->surf_props.maxImageCount)) {
/* Application must settle for fewer images than desired: */
n_images_wanted = swapper->priv->surf_props.maxImageCount;
}
if (swapper->priv->surf_props.
supportedTransforms & VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR) {
preTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
} else {
preTransform = swapper->priv->surf_props.currentTransform;
}
format = _vk_format_from_video_info (&swapper->priv->v_info);
color_space = _vk_color_space_from_video_info (&swapper->priv->v_info);
if ((swapper->priv->surf_props.supportedCompositeAlpha &
VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR) != 0) {
alpha_flags = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
} else if ((swapper->priv->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;
}
if ((swapper->priv->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->priv->
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->priv->swap_chain;
/* *INDENT-OFF* */
swap_chain_info = (VkSwapchainCreateInfoKHR) {
.sType = VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR,
.pNext = NULL,
.surface = swapper->priv->surface,
.minImageCount = n_images_wanted,
.imageFormat = format,
.imageColorSpace = color_space,
.imageExtent = swapchain_dims,
.imageArrayLayers = 1,
.imageUsage = usage,
.imageSharingMode = VK_SHARING_MODE_EXCLUSIVE,
.queueFamilyIndexCount = 0,
.pQueueFamilyIndices = NULL,
.preTransform = preTransform,
.presentMode = present_mode,
.compositeAlpha = alpha_flags,
.clipped = TRUE,
.oldSwapchain = old_swap_chain
};
/* *INDENT-ON* */
err =
swapper->priv->CreateSwapchainKHR (swapper->device->device,
&swap_chain_info, NULL, &swapper->priv->swap_chain);
if (gst_vulkan_error_to_g_error (err, error, "vkCreateSwapchainKHR") < 0)
return FALSE;
if (old_swap_chain != VK_NULL_HANDLE) {
swapper->priv->DestroySwapchainKHR (swapper->device->device,
old_swap_chain, NULL);
}
}
err =
swapper->priv->GetSwapchainImagesKHR (swapper->device->device,
swapper->priv->swap_chain, &swapper->priv->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->priv->n_swap_chain_images);
err =
swapper->priv->GetSwapchainImagesKHR (swapper->device->device,
swapper->priv->swap_chain, &swapper->priv->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->priv->swap_chain_images =
g_new0 (GstVulkanImageMemory *, swapper->priv->n_swap_chain_images);
for (i = 0; i < swapper->priv->n_swap_chain_images; i++) {
swapper->priv->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);
swapper->priv->swap_chain_images[i]->barrier.parent.pipeline_stages =
VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
swapper->priv->swap_chain_images[i]->barrier.parent.access_flags =
VK_ACCESS_MEMORY_READ_BIT;
swapper->priv->swap_chain_images[i]->barrier.image_layout =
VK_IMAGE_LAYOUT_UNDEFINED;
}
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->priv->swap_chain_images) {
for (i = 0; i < swapper->priv->n_swap_chain_images; i++) {
if (swapper->priv->swap_chain_images[i])
gst_memory_unref ((GstMemory *) swapper->priv->swap_chain_images[i]);
}
g_free (swapper->priv->swap_chain_images);
}
return _allocate_swapchain (swapper, swapper->priv->caps, error);
}
static gboolean
configure_display_from_info (GstVulkanSwapper * swapper, GstVideoInfo * vinfo)
{
gint width;
gint height;
gboolean ok;
gint par_n, par_d;
gint display_par_n, display_par_d;
guint display_ratio_num, display_ratio_den;
width = GST_VIDEO_INFO_WIDTH (vinfo);
height = GST_VIDEO_INFO_HEIGHT (vinfo);
par_n = GST_VIDEO_INFO_PAR_N (vinfo);
par_d = GST_VIDEO_INFO_PAR_D (vinfo);
if (!par_n)
par_n = 1;
/* get display's PAR */
if (swapper->priv->par_n != 0 && swapper->priv->par_d != 0) {
display_par_n = swapper->priv->par_n;
display_par_d = swapper->priv->par_d;
} else {
display_par_n = 1;
display_par_d = 1;
}
ok = gst_video_calculate_display_ratio (&display_ratio_num,
&display_ratio_den, width, height, par_n, par_d, display_par_n,
display_par_d);
if (!ok)
return FALSE;
GST_TRACE_OBJECT (swapper, "PAR: %u/%u DAR:%u/%u", par_n, par_d,
display_par_n, display_par_d);
if (height % display_ratio_den == 0) {
GST_DEBUG_OBJECT (swapper, "keeping video height");
swapper->priv->dar_width = (guint)
gst_util_uint64_scale_int (height, display_ratio_num,
display_ratio_den);
swapper->priv->dar_height = height;
} else if (width % display_ratio_num == 0) {
GST_DEBUG_OBJECT (swapper, "keeping video width");
swapper->priv->dar_width = width;
swapper->priv->dar_height = (guint)
gst_util_uint64_scale_int (width, display_ratio_den, display_ratio_num);
} else {
GST_DEBUG_OBJECT (swapper, "approximating while keeping video height");
swapper->priv->dar_width = (guint)
gst_util_uint64_scale_int (height, display_ratio_num,
display_ratio_den);
swapper->priv->dar_height = height;
}
GST_DEBUG_OBJECT (swapper, "scaling to %dx%d", swapper->priv->dar_width,
swapper->priv->dar_height);
return TRUE;
}
gboolean
gst_vulkan_swapper_set_caps (GstVulkanSwapper * swapper, GstCaps * caps,
GError ** error)
{
if (!gst_video_info_from_caps (&swapper->priv->v_info, caps)) {
g_set_error (error, GST_VULKAN_ERROR,
VK_ERROR_INITIALIZATION_FAILED, "Failed to get GstVideoInfo from caps");
return FALSE;
}
if (!configure_display_from_info (swapper, &swapper->priv->v_info)) {
g_set_error (error, GST_VULKAN_ERROR,
VK_ERROR_INITIALIZATION_FAILED, "Failed to configure display sizes");
return FALSE;
}
gst_caps_replace (&swapper->priv->caps, caps);
return _swapchain_resize (swapper, error);
}
static gboolean
_build_render_buffer_cmd (GstVulkanSwapper * swapper, guint32 swap_idx,
GstBuffer * buffer, VkCommandBuffer * cmd_ret, GError ** error)
{
GstMemory *in_mem;
GstVulkanImageMemory *swap_img;
VkCommandBuffer cmd;
GstVideoRectangle src, dst, rslt;
VkResult err;
g_return_val_if_fail (swap_idx < swapper->priv->n_swap_chain_images, FALSE);
swap_img = swapper->priv->swap_chain_images[swap_idx];
if (!(cmd = gst_vulkan_command_pool_create (swapper->cmd_pool, error)))
return FALSE;
{
/* *INDENT-OFF* */
VkCommandBufferBeginInfo cmd_buf_info = {
.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO,
.pNext = NULL,
.flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT,
.pInheritanceInfo = NULL
};
/* *INDENT-ON* */
err = vkBeginCommandBuffer (cmd, &cmd_buf_info);
if (gst_vulkan_error_to_g_error (err, error, "vkBeginCommandBuffer") < 0)
return FALSE;
}
{
/* *INDENT-OFF* */
VkImageMemoryBarrier image_memory_barrier = {
.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
.pNext = NULL,
.srcAccessMask = swap_img->barrier.parent.access_flags,
.dstAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT,
.oldLayout = swap_img->barrier.image_layout,
.newLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
/* FIXME: implement exclusive transfers */
.srcQueueFamilyIndex = 0,
.dstQueueFamilyIndex = 0,
.image = swap_img->image,
.subresourceRange = swap_img->barrier.subresource_range
};
/* *INDENT-ON* */
vkCmdPipelineBarrier (cmd, swap_img->barrier.parent.pipeline_stages,
VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 0, NULL, 0, NULL, 1,
&image_memory_barrier);
swap_img->barrier.parent.pipeline_stages = VK_PIPELINE_STAGE_TRANSFER_BIT;
swap_img->barrier.parent.access_flags = image_memory_barrier.dstAccessMask;
swap_img->barrier.image_layout = image_memory_barrier.newLayout;
}
src.x = src.y = 0;
src.w = swapper->priv->dar_width;
src.h = swapper->priv->dar_height;
dst.x = dst.y = 0;
dst.w = gst_vulkan_image_memory_get_width (swap_img);
dst.h = gst_vulkan_image_memory_get_height (swap_img);
gst_video_sink_center_rect (src, dst, &rslt,
swapper->priv->force_aspect_ratio);
GST_TRACE_OBJECT (swapper, "rendering into result rectangle %ux%u+%u,%u "
"src %ux%u dst %ux%u", rslt.w, rslt.h, rslt.x, rslt.y, src.w, src.h,
dst.w, dst.h);
in_mem = gst_buffer_peek_memory (buffer, 0);
{
GstVulkanImageMemory *img_mem = (GstVulkanImageMemory *) in_mem;
/* *INDENT-OFF* */
VkImageBlit blit = {
.srcSubresource = {
.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
.mipLevel = 0,
.baseArrayLayer = 0,
.layerCount = 1,
},
.srcOffsets = {
{0, 0, 0},
{GST_VIDEO_INFO_WIDTH (&swapper->priv->v_info), GST_VIDEO_INFO_HEIGHT (&swapper->priv->v_info), 1},
},
.dstSubresource = {
.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
.mipLevel = 0,
.baseArrayLayer = 0,
.layerCount = 1,
},
.dstOffsets = {
{rslt.x, rslt.y, 0},
{rslt.x + rslt.w, rslt.y + rslt.h, 1},
},
};
VkImageMemoryBarrier image_memory_barrier = {
.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
.pNext = NULL,
.srcAccessMask = img_mem->barrier.parent.access_flags,
.dstAccessMask = VK_ACCESS_TRANSFER_READ_BIT,
.oldLayout = img_mem->barrier.image_layout,
.newLayout = VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
/* FIXME: implement exclusive transfers */
.srcQueueFamilyIndex = 0,
.dstQueueFamilyIndex = 0,
.image = img_mem->image,
.subresourceRange = img_mem->barrier.subresource_range
};
VkClearColorValue clear = {{0.0, 0.0, 0.0, 1.0}};
VkImageSubresourceRange clear_range = {
.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
.baseMipLevel = 0,
.levelCount = 1,
.baseArrayLayer = 0,
.layerCount = 1,
};
/* *INDENT-ON* */
vkCmdPipelineBarrier (cmd, img_mem->barrier.parent.pipeline_stages,
VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 0, NULL, 0, NULL, 1,
&image_memory_barrier);
img_mem->barrier.parent.pipeline_stages = VK_PIPELINE_STAGE_TRANSFER_BIT;
img_mem->barrier.parent.access_flags = image_memory_barrier.dstAccessMask;
img_mem->barrier.image_layout = image_memory_barrier.newLayout;
vkCmdClearColorImage (cmd, swap_img->image, swap_img->barrier.image_layout,
&clear, 1, &clear_range);
vkCmdBlitImage (cmd, img_mem->image, img_mem->barrier.image_layout,
swap_img->image, swap_img->barrier.image_layout, 1, &blit,
VK_FILTER_LINEAR);
}
{
/* *INDENT-OFF* */
VkImageMemoryBarrier image_memory_barrier = {
.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
.pNext = NULL,
.srcAccessMask = swap_img->barrier.parent.access_flags,
.dstAccessMask = VK_ACCESS_MEMORY_READ_BIT,
.oldLayout = swap_img->barrier.image_layout,
.newLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR,
/* FIXME: implement exclusive transfers */
.srcQueueFamilyIndex = 0,
.dstQueueFamilyIndex = 0,
.image = swap_img->image,
.subresourceRange = swap_img->barrier.subresource_range
};
/* *INDENT-ON* */
vkCmdPipelineBarrier (cmd, swap_img->barrier.parent.pipeline_stages,
VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 0, NULL, 0, NULL, 1,
&image_memory_barrier);
swap_img->barrier.parent.pipeline_stages = VK_PIPELINE_STAGE_TRANSFER_BIT;
swap_img->barrier.parent.access_flags = image_memory_barrier.dstAccessMask;
swap_img->barrier.image_layout = image_memory_barrier.newLayout;
}
err = vkEndCommandBuffer (cmd);
if (gst_vulkan_error_to_g_error (err, error, "vkEndCommandBuffer") < 0)
return FALSE;
*cmd_ret = cmd;
return TRUE;
}
static gboolean
_render_buffer_unlocked (GstVulkanSwapper * swapper,
GstBuffer * buffer, GError ** error)
{
VkSemaphore acquire_semaphore = { 0, };
VkSemaphore present_semaphore = { 0, };
VkSemaphoreCreateInfo semaphore_info = { 0, };
GstVulkanFence *fence = NULL;
VkPresentInfoKHR present;
VkCommandBuffer cmd = VK_NULL_HANDLE;
guint32 swap_idx;
VkResult err, present_err = VK_SUCCESS;
gst_vulkan_trash_list_gc (swapper->priv->trash_list);
if (!buffer) {
g_set_error (error, GST_VULKAN_ERROR,
VK_ERROR_INITIALIZATION_FAILED, "Invalid buffer");
goto error;
}
if (g_atomic_int_get (&swapper->priv->to_quit)) {
g_set_error (error, GST_VULKAN_ERROR, VK_ERROR_SURFACE_LOST_KHR,
"Output window was closed");
goto error;
}
gst_buffer_replace (&swapper->priv->current_buffer, buffer);
/* *INDENT-OFF* */
semaphore_info = (VkSemaphoreCreateInfo) {
.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO,
.pNext = NULL,
.flags = 0,
};
/* *INDENT-ON* */
reacquire:
err = vkCreateSemaphore (swapper->device->device, &semaphore_info,
NULL, &acquire_semaphore);
if (gst_vulkan_error_to_g_error (err, error, "vkCreateSemaphore") < 0)
goto error;
err =
swapper->priv->AcquireNextImageKHR (swapper->device->device,
swapper->priv->swap_chain, -1, acquire_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, acquire_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, error))
goto error;
err = vkCreateSemaphore (swapper->device->device, &semaphore_info,
NULL, &present_semaphore);
if (gst_vulkan_error_to_g_error (err, error, "vkCreateSemaphore") < 0)
goto error;
{
VkPipelineStageFlags stages = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
VkSubmitInfo submit_info = { 0, };
/* *INDENT-OFF* */
submit_info = (VkSubmitInfo) {
.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO,
.pNext = NULL,
.waitSemaphoreCount = 1,
.pWaitSemaphores = &acquire_semaphore,
.pWaitDstStageMask = &stages,
.commandBufferCount = 1,
.pCommandBuffers = &cmd,
.signalSemaphoreCount = 1,
.pSignalSemaphores = &present_semaphore,
};
/* *INDENT-ON* */
fence = gst_vulkan_fence_new (swapper->device, 0, error);
if (!fence)
goto error;
err =
vkQueueSubmit (swapper->queue->queue, 1, &submit_info,
GST_VULKAN_FENCE_FENCE (fence));
if (gst_vulkan_error_to_g_error (err, error, "vkQueueSubmit") < 0)
goto error;
gst_vulkan_trash_list_add (swapper->priv->trash_list,
gst_vulkan_trash_new_free_command_buffer (gst_vulkan_fence_ref (fence),
swapper->cmd_pool, cmd));
gst_vulkan_trash_list_add (swapper->priv->trash_list,
gst_vulkan_trash_new_free_semaphore (fence, acquire_semaphore));
cmd = VK_NULL_HANDLE;
fence = NULL;
}
/* *INDENT-OFF* */
present = (VkPresentInfoKHR) {
.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR,
.pNext = NULL,
.waitSemaphoreCount = 1,
.pWaitSemaphores = &present_semaphore,
.swapchainCount = 1,
.pSwapchains = &swapper->priv->swap_chain,
.pImageIndices = &swap_idx,
.pResults = &present_err,
};
/* *INDENT-ON* */
err = swapper->priv->QueuePresentKHR (swapper->queue->queue, &present);
if (gst_vulkan_error_to_g_error (err, error, "vkQueuePresentKHR") < 0)
goto error;
if (present_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;
{
VkSubmitInfo submit_info = { 0, };
VkPipelineStageFlags stages = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
/* *INDENT-OFF* */
submit_info = (VkSubmitInfo) {
.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO,
.pWaitDstStageMask = &stages,
0,
};
/* *INDENT-ON* */
fence = gst_vulkan_fence_new (swapper->device, 0, error);
if (!fence)
goto error;
err =
vkQueueSubmit (swapper->queue->queue, 1, &submit_info,
GST_VULKAN_FENCE_FENCE (fence));
if (gst_vulkan_error_to_g_error (err, error, "vkQueueSubmit") < 0)
goto error;
gst_vulkan_trash_list_add (swapper->priv->trash_list,
gst_vulkan_trash_new_free_semaphore (fence, present_semaphore));
fence = NULL;
}
return TRUE;
error:
{
if (acquire_semaphore)
vkDestroySemaphore (swapper->device->device, acquire_semaphore, NULL);
if (present_semaphore)
vkDestroySemaphore (swapper->device->device, present_semaphore, NULL);
if (cmd)
vkFreeCommandBuffers (swapper->device->device, swapper->cmd_pool->pool,
1, &cmd);
return FALSE;
}
}
gboolean
gst_vulkan_swapper_render_buffer (GstVulkanSwapper * swapper,
GstBuffer * buffer, GError ** error)
{
GstMemory *mem;
gboolean ret;
mem = gst_buffer_peek_memory (buffer, 0);
if (!mem) {
g_set_error_literal (error, GST_VULKAN_ERROR, VK_ERROR_FORMAT_NOT_SUPPORTED,
"Buffer has no memory");
return FALSE;
}
if (!gst_is_vulkan_image_memory (mem)) {
g_set_error_literal (error, GST_VULKAN_ERROR, VK_ERROR_FORMAT_NOT_SUPPORTED,
"Incorrect memory type");
return FALSE;
}
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->priv->current_buffer) {
GST_DEBUG_OBJECT (swapper, "No buffer to render");
RENDER_UNLOCK (swapper);
return;
}
/* TODO: perform some rate limiting of the number of redraw events */
if (!_render_buffer_unlocked (swapper, swapper->priv->current_buffer, &error))
GST_ERROR_OBJECT (swapper, "Failed to redraw buffer %p %s",
swapper->priv->current_buffer, error->message);
g_clear_error (&error);
RENDER_UNLOCK (swapper);
}
static void
_on_window_resize (GstVulkanWindow * window, guint width, guint height,
GstVulkanSwapper * swapper)
{
GError *error = NULL;
RENDER_LOCK (swapper);
if (swapper->priv->any_current_extent) {
if (!_swapchain_resize (swapper, &error))
GST_ERROR_OBJECT (swapper, "Failed to resize swapchain: %s",
error->message);
}
RENDER_UNLOCK (swapper);
}
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