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gstreamer/subprojects/gst-plugins-bad/sys/d3d11/gstd3d11window.cpp
Pablo García 6bbddc683d d3d11: implement mouse wheel events 
Adittion of d3d11 support for WM_MOUSEWHEEL and WM_MOUSEHWHEEL events,
which are triggered when the mouse is scrolled vertically or horizontally
respectively.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7705>
2024-10-28 22:23:41 +00:00

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/*
* GStreamer
* Copyright (C) 2019 Seungha Yang <seungha.yang@navercorp.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 "gstd3d11window.h"
#include "gstd3d11pluginutils.h"
#if GST_D3D11_WINAPI_APP
/* workaround for GetCurrentTime collision */
#ifdef GetCurrentTime
#undef GetCurrentTime
#endif
#include <windows.ui.xaml.h>
#include <windows.applicationmodel.core.h>
#endif
#include <wrl.h>
/* *INDENT-OFF* */
using namespace Microsoft::WRL;
/* *INDENT-ON* */
GST_DEBUG_CATEGORY_EXTERN (gst_d3d11_window_debug);
#define GST_CAT_DEFAULT gst_d3d11_window_debug
enum
{
PROP_0,
PROP_D3D11_DEVICE,
PROP_FORCE_ASPECT_RATIO,
PROP_ENABLE_NAVIGATION_EVENTS,
PROP_FULLSCREEN_TOGGLE_MODE,
PROP_FULLSCREEN,
PROP_WINDOW_HANDLE,
PROP_RENDER_STATS,
PROP_EMIT_PRESENT,
};
#define DEFAULT_ENABLE_NAVIGATION_EVENTS TRUE
#define DEFAULT_FORCE_ASPECT_RATIO TRUE
#define DEFAULT_FULLSCREEN_TOGGLE_MODE GST_D3D11_WINDOW_FULLSCREEN_TOGGLE_MODE_NONE
#define DEFAULT_FULLSCREEN FALSE
#define DEFAULT_EMIT_PRESENT FALSE
enum
{
SIGNAL_KEY_EVENT,
SIGNAL_MOUSE_EVENT,
SIGNAL_MOUSE_SCROLL_EVENT,
SIGNAL_PRESENT,
SIGNAL_LAST
};
static guint d3d11_window_signals[SIGNAL_LAST] = { 0, };
GType
gst_d3d11_window_fullscreen_toggle_mode_type (void)
{
static GType mode_type = 0;
GST_D3D11_CALL_ONCE_BEGIN {
static const GFlagsValue mode_types[] = {
{GST_D3D11_WINDOW_FULLSCREEN_TOGGLE_MODE_NONE,
"GST_D3D11_WINDOW_FULLSCREEN_TOGGLE_MODE_NONE", "none"},
{GST_D3D11_WINDOW_FULLSCREEN_TOGGLE_MODE_ALT_ENTER,
"GST_D3D11_WINDOW_FULLSCREEN_TOGGLE_MODE_ALT_ENTER", "alt-enter"},
{GST_D3D11_WINDOW_FULLSCREEN_TOGGLE_MODE_PROPERTY,
"GST_D3D11_WINDOW_FULLSCREEN_TOGGLE_MODE_PROPERTY", "property"},
{0, nullptr, nullptr},
};
mode_type = g_flags_register_static ("GstD3D11WindowFullscreenToggleMode",
mode_types);
} GST_D3D11_CALL_ONCE_END;
return mode_type;
}
#define gst_d3d11_window_parent_class parent_class
G_DEFINE_ABSTRACT_TYPE (GstD3D11Window, gst_d3d11_window, GST_TYPE_OBJECT);
static void gst_d3d11_window_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_d3d11_window_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static void gst_d3d11_window_dispose (GObject * object);
static GstFlowReturn gst_d3d11_window_present (GstD3D11Window * self,
GstBuffer * buffer, GstBuffer * render_target, GstBuffer * multisample);
static void gst_d3d11_window_on_resize_default (GstD3D11Window * window,
guint width, guint height);
static GstFlowReturn gst_d3d11_window_prepare_default (GstD3D11Window * window,
guint display_width, guint display_height, GstCaps * caps,
GstStructure * config, DXGI_FORMAT display_format, GError ** error);
static void
gst_d3d11_window_class_init (GstD3D11WindowClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gobject_class->set_property = gst_d3d11_window_set_property;
gobject_class->get_property = gst_d3d11_window_get_property;
gobject_class->dispose = gst_d3d11_window_dispose;
klass->on_resize = GST_DEBUG_FUNCPTR (gst_d3d11_window_on_resize_default);
klass->prepare = GST_DEBUG_FUNCPTR (gst_d3d11_window_prepare_default);
g_object_class_install_property (gobject_class, PROP_D3D11_DEVICE,
g_param_spec_object ("d3d11device", "D3D11 Device",
"GstD3D11Device object for creating swapchain",
GST_TYPE_D3D11_DEVICE,
(GParamFlags) (G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS)));
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,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_ENABLE_NAVIGATION_EVENTS,
g_param_spec_boolean ("enable-navigation-events",
"Enable navigation events",
"When enabled, signals for navigation events are emitted",
DEFAULT_ENABLE_NAVIGATION_EVENTS,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_FULLSCREEN_TOGGLE_MODE,
g_param_spec_flags ("fullscreen-toggle-mode",
"Full screen toggle mode",
"Full screen toggle mode used to trigger fullscreen mode change",
GST_D3D11_WINDOW_TOGGLE_MODE_GET_TYPE, DEFAULT_FULLSCREEN_TOGGLE_MODE,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_FULLSCREEN,
g_param_spec_boolean ("fullscreen",
"fullscreen",
"Ignored when \"fullscreen-toggle-mode\" does not include \"property\"",
DEFAULT_FULLSCREEN,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_WINDOW_HANDLE,
g_param_spec_pointer ("window-handle",
"Window Handle", "External Window Handle",
(GParamFlags) (G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_EMIT_PRESENT,
g_param_spec_boolean ("emit-present", "Emit Present",
"Emit present signal", DEFAULT_EMIT_PRESENT,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
d3d11_window_signals[SIGNAL_KEY_EVENT] =
g_signal_new ("key-event", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL,
G_TYPE_NONE, 2, G_TYPE_STRING, G_TYPE_STRING);
d3d11_window_signals[SIGNAL_MOUSE_EVENT] =
g_signal_new ("mouse-event", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL,
G_TYPE_NONE, 5, G_TYPE_STRING, G_TYPE_INT, G_TYPE_DOUBLE, G_TYPE_DOUBLE,
G_TYPE_UINT);
d3d11_window_signals[SIGNAL_MOUSE_SCROLL_EVENT] =
g_signal_new ("mouse-scroll-event", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL,
G_TYPE_NONE, 6, G_TYPE_STRING, G_TYPE_DOUBLE, G_TYPE_DOUBLE,
G_TYPE_INT, G_TYPE_INT, G_TYPE_UINT);
d3d11_window_signals[SIGNAL_PRESENT] =
g_signal_new ("present", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, 0, nullptr, nullptr, nullptr,
G_TYPE_NONE, 2, GST_TYPE_D3D11_DEVICE, G_TYPE_POINTER);
}
static void
gst_d3d11_window_init (GstD3D11Window * self)
{
self->force_aspect_ratio = DEFAULT_FORCE_ASPECT_RATIO;
self->enable_navigation_events = DEFAULT_ENABLE_NAVIGATION_EVENTS;
self->fullscreen_toggle_mode = GST_D3D11_WINDOW_FULLSCREEN_TOGGLE_MODE_NONE;
self->fullscreen = DEFAULT_FULLSCREEN;
self->emit_present = DEFAULT_EMIT_PRESENT;
self->fov = 90.0f;
self->ortho = FALSE;
self->rotation_x = 0.0f;
self->rotation_y = 0.0f;
self->rotation_z = 0.0f;
self->scale_x = 1.0f;
self->scale_y = 1.0f;
self->msaa = GST_D3D11_MSAA_DISABLED;
}
static void
gst_d3d11_window_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstD3D11Window *self = GST_D3D11_WINDOW (object);
GstD3D11WindowClass *klass = GST_D3D11_WINDOW_GET_CLASS (object);
switch (prop_id) {
case PROP_D3D11_DEVICE:
self->device = (GstD3D11Device *) g_value_dup_object (value);
break;
case PROP_FORCE_ASPECT_RATIO:
{
self->force_aspect_ratio = g_value_get_boolean (value);
if (self->swap_chain)
klass->update_swap_chain (self);
break;
}
case PROP_ENABLE_NAVIGATION_EVENTS:
self->enable_navigation_events = g_value_get_boolean (value);
break;
case PROP_FULLSCREEN_TOGGLE_MODE:
self->fullscreen_toggle_mode =
(GstD3D11WindowFullscreenToggleMode) g_value_get_flags (value);
break;
case PROP_FULLSCREEN:
{
self->requested_fullscreen = g_value_get_boolean (value);
if (self->swap_chain)
klass->change_fullscreen_mode (self);
break;
}
case PROP_WINDOW_HANDLE:
self->external_handle = (guintptr) g_value_get_pointer (value);
break;
case PROP_EMIT_PRESENT:
self->emit_present = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_d3d11_window_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstD3D11Window *self = GST_D3D11_WINDOW (object);
switch (prop_id) {
case PROP_ENABLE_NAVIGATION_EVENTS:
g_value_set_boolean (value, self->enable_navigation_events);
break;
case PROP_FORCE_ASPECT_RATIO:
g_value_set_boolean (value, self->force_aspect_ratio);
break;
case PROP_FULLSCREEN_TOGGLE_MODE:
g_value_set_flags (value, self->fullscreen_toggle_mode);
break;
case PROP_FULLSCREEN:
g_value_set_boolean (value, self->fullscreen);
break;
case PROP_EMIT_PRESENT:
g_value_set_boolean (value, self->emit_present);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_d3d11_window_dispose (GObject * object)
{
GstD3D11Window *self = GST_D3D11_WINDOW (object);
gst_clear_buffer (&self->backbuffer);
GST_D3D11_CLEAR_COM (self->swap_chain);
gst_clear_object (&self->compositor);
gst_clear_object (&self->converter);
gst_clear_buffer (&self->msaa_buffer);
gst_clear_buffer (&self->cached_buffer);
gst_clear_object (&self->device);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
gst_d3d11_window_on_resize_default (GstD3D11Window * self, guint width,
guint height)
{
GstD3D11Device *device = self->device;
HRESULT hr;
D3D11_TEXTURE2D_DESC desc;
DXGI_SWAP_CHAIN_DESC swap_desc;
ComPtr < ID3D11Texture2D > backbuffer;
GstVideoRectangle src_rect, dst_rect, rst_rect;
IDXGISwapChain *swap_chain;
GstMemory *mem;
GstMemory *msaa_mem = nullptr;
GstD3D11Memory *dmem;
ID3D11RenderTargetView *rtv;
ID3D11DeviceContext *context;
ID3D11Device *device_handle;
gsize size;
GstD3D11DeviceLockGuard lk (device);
const FLOAT clear_color[] = { 0.0, 0.0, 0.0, 1.0 };
UINT quality_levels = 0;
UINT sample_count = 1;
gst_clear_buffer (&self->backbuffer);
gst_clear_buffer (&self->msaa_buffer);
if (!self->swap_chain)
return;
swap_chain = self->swap_chain;
swap_chain->GetDesc (&swap_desc);
hr = swap_chain->ResizeBuffers (0, width, height, self->dxgi_format,
swap_desc.Flags);
if (!gst_d3d11_result (hr, device)) {
GST_ERROR_OBJECT (self, "Couldn't resize buffers, hr: 0x%x", (guint) hr);
return;
}
hr = swap_chain->GetBuffer (0, IID_PPV_ARGS (&backbuffer));
if (!gst_d3d11_result (hr, device)) {
GST_ERROR_OBJECT (self,
"Cannot get backbuffer from swapchain, hr: 0x%x", (guint) hr);
return;
}
backbuffer->GetDesc (&desc);
size = desc.Width * desc.Height;
/* flip mode swapchain supports only 4 formats, rgba/bgra/rgb10a2/rgba64.
* The size passed in alloc_wrapped() is not important here, since we never
* try mapping this for CPU access */
if (desc.Format == DXGI_FORMAT_R16G16B16A16_FLOAT) {
size *= 8;
} else {
size *= 4;
}
mem = gst_d3d11_allocator_alloc_wrapped (nullptr,
self->device, backbuffer.Get (), size, nullptr, nullptr);
if (!mem) {
GST_ERROR_OBJECT (self, "Couldn't allocate wrapped memory");
return;
}
dmem = GST_D3D11_MEMORY_CAST (mem);
rtv = gst_d3d11_memory_get_render_target_view (dmem, 0);
if (!rtv) {
GST_ERROR_OBJECT (self, "RTV is unavailable");
gst_memory_unref (mem);
return;
}
switch (self->msaa) {
case GST_D3D11_MSAA_2X:
sample_count = 2;
break;
case GST_D3D11_MSAA_4X:
sample_count = 4;
break;
case GST_D3D11_MSAA_8X:
sample_count = 8;
break;
default:
break;
}
device_handle = gst_d3d11_device_get_device_handle (self->device);
while (sample_count > 1) {
hr = device_handle->CheckMultisampleQualityLevels (desc.Format,
sample_count, &quality_levels);
if (gst_d3d11_result (hr, device) && quality_levels > 0)
break;
sample_count = sample_count / 2;
};
if (sample_count > 1 && quality_levels > 0) {
ComPtr < ID3D11Texture2D > multisample_texture;
desc.SampleDesc.Count = sample_count;
desc.SampleDesc.Quality = quality_levels - 1;
device_handle->CreateTexture2D (&desc, nullptr, &multisample_texture);
if (multisample_texture) {
msaa_mem = gst_d3d11_allocator_alloc_wrapped (nullptr,
self->device, multisample_texture.Get (), size, nullptr, nullptr);
dmem = GST_D3D11_MEMORY_CAST (msaa_mem);
rtv = gst_d3d11_memory_get_render_target_view (dmem, 0);
}
}
context = gst_d3d11_device_get_device_context_handle (self->device);
context->ClearRenderTargetView (rtv, clear_color);
self->backbuffer = gst_buffer_new ();
gst_buffer_append_memory (self->backbuffer, mem);
if (msaa_mem) {
self->msaa_buffer = gst_buffer_new ();
gst_buffer_append_memory (self->msaa_buffer, msaa_mem);
}
self->surface_width = desc.Width;
self->surface_height = desc.Height;
dst_rect.x = 0;
dst_rect.y = 0;
dst_rect.w = self->surface_width;
dst_rect.h = self->surface_height;
if (self->force_aspect_ratio) {
src_rect.x = 0;
src_rect.y = 0;
switch (self->method) {
case GST_VIDEO_ORIENTATION_90R:
case GST_VIDEO_ORIENTATION_90L:
case GST_VIDEO_ORIENTATION_UL_LR:
case GST_VIDEO_ORIENTATION_UR_LL:
src_rect.w = GST_VIDEO_INFO_HEIGHT (&self->render_info);
src_rect.h = GST_VIDEO_INFO_WIDTH (&self->render_info);
break;
default:
src_rect.w = GST_VIDEO_INFO_WIDTH (&self->render_info);
src_rect.h = GST_VIDEO_INFO_HEIGHT (&self->render_info);
break;
}
gst_video_sink_center_rect (src_rect, dst_rect, &rst_rect, TRUE);
} else {
rst_rect = dst_rect;
}
self->render_rect.left = rst_rect.x;
self->render_rect.top = rst_rect.y;
self->render_rect.right = rst_rect.x + rst_rect.w;
self->render_rect.bottom = rst_rect.y + rst_rect.h;
GST_LOG_OBJECT (self,
"New client area %dx%d, render rect x: %d, y: %d, %dx%d",
desc.Width, desc.Height, rst_rect.x, rst_rect.y, rst_rect.w, rst_rect.h);
self->first_present = TRUE;
/* redraw the last scene if cached buffer exits */
if (self->cached_buffer) {
gst_d3d11_window_present (self, self->cached_buffer, self->backbuffer,
self->msaa_buffer);
}
}
void
gst_d3d11_window_on_key_event (GstD3D11Window * window, const gchar * event,
const gchar * key)
{
g_return_if_fail (GST_IS_D3D11_WINDOW (window));
if (!window->enable_navigation_events)
return;
g_signal_emit (window, d3d11_window_signals[SIGNAL_KEY_EVENT], 0, event, key);
}
void
gst_d3d11_window_on_mouse_event (GstD3D11Window * window, const gchar * event,
gint button, gdouble x, gdouble y, guint modifier)
{
RECT render_rect;
GstVideoOrientationMethod method;
LONG xpos, ypos;
gdouble display_w, display_h, src_w, src_h;
gint in_w, in_h;
g_return_if_fail (GST_IS_D3D11_WINDOW (window));
if (!window->enable_navigation_events)
return;
gst_d3d11_device_lock (window->device);
method = window->method;
render_rect = window->render_rect;
in_w = window->info.width;
in_h = window->info.height;
gst_d3d11_device_unlock (window->device);
display_w = render_rect.right - render_rect.left;
display_h = render_rect.bottom - render_rect.top;
xpos = (LONG) x;
ypos = (LONG) y;
/* if backbuffer surface size is unknown or mouse point located at
* outside of render area, ignore it */
if (display_w <= 0 || display_h <= 0 || in_w <= 0 || in_h <= 0 ||
xpos < render_rect.left || xpos >= render_rect.right ||
ypos < render_rect.top || ypos >= render_rect.bottom) {
return;
}
switch (method) {
case GST_VIDEO_ORIENTATION_90R:
case GST_VIDEO_ORIENTATION_90L:
case GST_VIDEO_ORIENTATION_UL_LR:
case GST_VIDEO_ORIENTATION_UR_LL:
src_w = in_h;
src_h = in_w;
break;
default:
src_w = in_w;
src_h = in_h;
break;
}
xpos = ((xpos - render_rect.left) / display_w) * src_w;
ypos = ((ypos - render_rect.top) / display_h) * src_h;
xpos = CLAMP (xpos, 0, (LONG) (src_w - 1));
ypos = CLAMP (ypos, 0, (LONG) (src_h - 1));
/* Reverse rotate/flip if needed */
switch (method) {
case GST_VIDEO_ORIENTATION_90R:
x = ypos;
y = src_w - xpos;
break;
case GST_VIDEO_ORIENTATION_90L:
x = src_h - ypos;
y = xpos;
break;
case GST_VIDEO_ORIENTATION_UR_LL:
x = src_h - ypos;
y = src_w - xpos;
break;
case GST_VIDEO_ORIENTATION_UL_LR:
x = ypos;
y = xpos;
break;
case GST_VIDEO_ORIENTATION_180:
x = src_w - xpos;
y = src_h - ypos;
break;
case GST_VIDEO_ORIENTATION_HORIZ:
x = src_w - xpos;
y = ypos;
break;
case GST_VIDEO_ORIENTATION_VERT:
x = xpos;
y = src_h - ypos;
break;
default:
x = xpos;
y = ypos;
break;
}
g_signal_emit (window, d3d11_window_signals[SIGNAL_MOUSE_EVENT], 0,
event, button, x, y, modifier);
}
void
gst_d3d11_window_on_mouse_scroll_event (GstD3D11Window * window,
const gchar * event, gdouble x, gdouble y, gint delta_x, gint delta_y,
guint modifier)
{
g_return_if_fail (GST_IS_D3D11_WINDOW (window));
if (!window->enable_navigation_events)
return;
g_signal_emit (window, d3d11_window_signals[SIGNAL_MOUSE_SCROLL_EVENT], 0,
event, x, y, delta_x, delta_y, modifier);
}
typedef struct
{
DXGI_FORMAT dxgi_format;
GstVideoFormat gst_format;
gboolean supported;
} GstD3D11WindowDisplayFormat;
GstFlowReturn
gst_d3d11_window_prepare (GstD3D11Window * window, guint display_width,
guint display_height, GstCaps * caps, GstStructure * config,
DXGI_FORMAT display_format, GError ** error)
{
GstD3D11WindowClass *klass;
g_return_val_if_fail (GST_IS_D3D11_WINDOW (window), GST_FLOW_ERROR);
klass = GST_D3D11_WINDOW_GET_CLASS (window);
g_assert (klass->prepare != NULL);
GST_DEBUG_OBJECT (window, "Prepare window, display resolution %dx%d, caps %"
GST_PTR_FORMAT, display_width, display_height, caps);
return klass->prepare (window, display_width, display_height, caps, config,
display_format, error);
}
static GstFlowReturn
gst_d3d11_window_prepare_default (GstD3D11Window * window, guint display_width,
guint display_height, GstCaps * caps, GstStructure * config,
DXGI_FORMAT display_format, GError ** error)
{
GstD3D11Device *device = window->device;
GstD3D11WindowClass *klass;
guint swapchain_flags = 0;
ID3D11Device *device_handle;
guint num_supported_format = 0;
HRESULT hr;
UINT display_flags =
D3D11_FORMAT_SUPPORT_TEXTURE2D | D3D11_FORMAT_SUPPORT_DISPLAY;
UINT supported_flags = 0;
GstD3D11WindowDisplayFormat formats[] = {
{DXGI_FORMAT_B8G8R8A8_UNORM, GST_VIDEO_FORMAT_BGRA, FALSE},
{DXGI_FORMAT_R8G8B8A8_UNORM, GST_VIDEO_FORMAT_RGBA, FALSE},
{DXGI_FORMAT_R10G10B10A2_UNORM, GST_VIDEO_FORMAT_RGB10A2_LE, FALSE},
};
const GstD3D11WindowDisplayFormat *chosen_format = nullptr;
DXGI_COLOR_SPACE_TYPE swapchain_colorspace =
DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709;
gboolean hdr10_aware = FALSE;
gboolean have_hdr10_meta = FALSE;
GstVideoMasteringDisplayInfo mdcv;
GstVideoContentLightLevel cll;
ComPtr < IDXGISwapChain3 > swapchain3;
GstStructure *s;
const gchar *cll_str = nullptr;
const gchar *mdcv_str = nullptr;
/* Step 1: Clear old resources and objects */
gst_clear_buffer (&window->cached_buffer);
gst_clear_object (&window->compositor);
gst_clear_object (&window->converter);
/* Step 2: Decide display color format
* If upstream format is 10bits, try DXGI_FORMAT_R10G10B10A2_UNORM first
* Otherwise, use DXGI_FORMAT_B8G8R8A8_UNORM or DXGI_FORMAT_B8G8R8A8_UNORM
*/
gst_video_info_from_caps (&window->info, caps);
device_handle = gst_d3d11_device_get_device_handle (device);
for (guint i = 0; i < G_N_ELEMENTS (formats); i++) {
hr = device_handle->CheckFormatSupport (formats[i].dxgi_format,
&supported_flags);
if (SUCCEEDED (hr) && (supported_flags & display_flags) == display_flags) {
GST_DEBUG_OBJECT (window, "Device supports format %s (DXGI_FORMAT %d)",
gst_video_format_to_string (formats[i].gst_format),
formats[i].dxgi_format);
formats[i].supported = TRUE;
num_supported_format++;
}
}
if (num_supported_format == 0) {
GST_ERROR_OBJECT (window, "Cannot determine render format");
g_set_error (error, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_FAILED,
"Cannot determine render format");
if (config)
gst_structure_free (config);
return GST_FLOW_ERROR;
}
if (display_format != DXGI_FORMAT_UNKNOWN) {
for (guint i = 0; i < G_N_ELEMENTS (formats); i++) {
if (display_format == formats[i].dxgi_format && formats[i].supported) {
GST_DEBUG_OBJECT (window, "Requested format %s is supported",
gst_d3d11_dxgi_format_to_string (display_format));
chosen_format = &formats[i];
break;
}
}
if (!chosen_format) {
GST_ERROR_OBJECT (window, "Requested DXGI FORMAT %d is not supported",
display_format);
g_set_error (error, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_FAILED,
"Cannot determine render format");
if (config)
gst_structure_free (config);
return GST_FLOW_ERROR;
}
} else {
for (guint i = 0; i < GST_VIDEO_INFO_N_COMPONENTS (&window->info); i++) {
if (GST_VIDEO_INFO_COMP_DEPTH (&window->info, i) > 8) {
if (formats[2].supported) {
chosen_format = &formats[2];
}
break;
}
}
}
if (!chosen_format) {
/* prefer native format over conversion */
for (guint i = 0; i < 2; i++) {
if (formats[i].supported &&
formats[i].gst_format == GST_VIDEO_INFO_FORMAT (&window->info)) {
chosen_format = &formats[i];
break;
}
}
/* choose any color space then */
if (!chosen_format) {
for (guint i = 0; i < G_N_ELEMENTS (formats); i++) {
if (formats[i].supported) {
chosen_format = &formats[i];
break;
}
}
}
}
g_assert (chosen_format != nullptr);
GST_DEBUG_OBJECT (window, "chosen render format %s (DXGI_FORMAT %d)",
gst_video_format_to_string (chosen_format->gst_format),
chosen_format->dxgi_format);
/* Step 3: Create swapchain
* (or reuse old swapchain if the format is not changed) */
GstD3D11DeviceLockGuard lk (device);
window->dxgi_format = chosen_format->dxgi_format;
klass = GST_D3D11_WINDOW_GET_CLASS (window);
if (!window->swap_chain &&
!klass->create_swap_chain (window, window->dxgi_format,
display_width, display_height, swapchain_flags,
&window->swap_chain)) {
GST_ERROR_OBJECT (window, "Cannot create swapchain");
g_set_error (error, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_FAILED,
"Cannot create swapchain");
if (config)
gst_structure_free (config);
return GST_FLOW_ERROR;
}
/* this rect struct will be used to calculate render area */
window->render_rect.left = 0;
window->render_rect.top = 0;
window->render_rect.right = display_width;
window->render_rect.bottom = display_height;
window->input_rect.left = 0;
window->input_rect.top = 0;
window->input_rect.right = GST_VIDEO_INFO_WIDTH (&window->info);
window->input_rect.bottom = GST_VIDEO_INFO_HEIGHT (&window->info);
window->prev_input_rect = window->input_rect;
gst_video_info_set_format (&window->render_info,
chosen_format->gst_format, display_width, display_height);
/* preserve upstream colorimetry */
window->render_info.colorimetry.primaries =
window->info.colorimetry.primaries;
window->render_info.colorimetry.transfer = window->info.colorimetry.transfer;
/* prefer FULL range RGB. STUDIO range doesn't seem to be well supported
* color space by GPUs and we don't need to preserve color range for
* target display color space type */
window->render_info.colorimetry.range = GST_VIDEO_COLOR_RANGE_0_255;
s = gst_caps_get_structure (caps, 0);
mdcv_str = gst_structure_get_string (s, "mastering-display-info");
cll_str = gst_structure_get_string (s, "content-light-level");
if (mdcv_str && cll_str &&
gst_video_mastering_display_info_from_string (&mdcv, mdcv_str) &&
gst_video_content_light_level_from_string (&cll, cll_str)) {
have_hdr10_meta = TRUE;
}
hr = window->swap_chain->QueryInterface (IID_PPV_ARGS (&swapchain3));
if (gst_d3d11_result (hr, device)) {
if (gst_d3d11_find_swap_chain_color_space (&window->render_info,
swapchain3.Get (), &swapchain_colorspace)) {
hr = swapchain3->SetColorSpace1 (swapchain_colorspace);
if (!gst_d3d11_result (hr, window->device)) {
GST_WARNING_OBJECT (window, "Failed to set colorspace %d, hr: 0x%x",
swapchain_colorspace, (guint) hr);
swapchain_colorspace = DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709;
} else {
ComPtr < IDXGISwapChain4 > swapchain4;
/* DXGI_COLOR_SPACE_RGB_FULL_G2084_NONE_P2020 = 12, undefined in old
* mingw header */
if (swapchain_colorspace == 12 && have_hdr10_meta) {
hr = swapchain3.As (&swapchain4);
if (gst_d3d11_result (hr, device)) {
DXGI_HDR_METADATA_HDR10 hdr10_metadata = { 0, };
GST_DEBUG_OBJECT (window,
"Have HDR metadata, set to DXGI swapchain");
gst_d3d11_hdr_meta_data_to_dxgi (&mdcv, &cll, &hdr10_metadata);
hr = swapchain4->SetHDRMetaData (DXGI_HDR_METADATA_TYPE_HDR10,
sizeof (DXGI_HDR_METADATA_HDR10), &hdr10_metadata);
if (!gst_d3d11_result (hr, device)) {
GST_WARNING_OBJECT (window,
"Couldn't set HDR metadata, hr 0x%x", (guint) hr);
} else {
hdr10_aware = TRUE;
}
}
}
}
}
}
GST_DEBUG_OBJECT (window, "Set colorspace %d", swapchain_colorspace);
/* update with selected display color space */
gst_video_info_apply_dxgi_color_space (swapchain_colorspace,
&window->render_info);
if (GST_VIDEO_INFO_HAS_ALPHA (&window->info)) {
if (config) {
gst_structure_set (config, GST_D3D11_CONVERTER_OPT_DEST_ALPHA_MODE,
GST_TYPE_D3D11_CONVERTER_ALPHA_MODE,
GST_D3D11_CONVERTER_ALPHA_MODE_PREMULTIPLIED, nullptr);
} else {
config = gst_structure_new ("convert-config",
GST_D3D11_CONVERTER_OPT_DEST_ALPHA_MODE,
GST_TYPE_D3D11_CONVERTER_ALPHA_MODE,
GST_D3D11_CONVERTER_ALPHA_MODE_PREMULTIPLIED, nullptr);
}
}
window->converter = gst_d3d11_converter_new (device,
&window->info, &window->render_info, config);
if (!window->converter) {
GST_ERROR_OBJECT (window, "Cannot create converter");
g_set_error (error, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_FAILED,
"Cannot create converter");
return GST_FLOW_ERROR;
}
if (have_hdr10_meta) {
g_object_set (window->converter, "src-mastering-display-info", mdcv_str,
"src-content-light-level", cll_str, nullptr);
if (hdr10_aware) {
g_object_set (window->converter, "dest-mastering-display-info", mdcv_str,
"dest-content-light-level", cll_str, nullptr);
}
}
window->compositor =
gst_d3d11_overlay_compositor_new (window->device, &window->render_info);
if (!window->compositor) {
GST_ERROR_OBJECT (window, "Cannot create overlay compositor");
g_set_error (error, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_FAILED,
"Cannot create overlay compositor");
return GST_FLOW_ERROR;
}
/* call resize to allocated resources */
klass->on_resize (window, display_width, display_height);
if (window->requested_fullscreen != window->fullscreen)
klass->change_fullscreen_mode (window);
GST_DEBUG_OBJECT (window, "New swap chain 0x%p created", window->swap_chain);
return GST_FLOW_OK;
}
void
gst_d3d11_window_show (GstD3D11Window * window)
{
GstD3D11WindowClass *klass;
g_return_if_fail (GST_IS_D3D11_WINDOW (window));
klass = GST_D3D11_WINDOW_GET_CLASS (window);
if (klass->show)
klass->show (window);
}
void
gst_d3d11_window_set_render_rectangle (GstD3D11Window * window,
const GstVideoRectangle * rect)
{
GstD3D11WindowClass *klass;
g_return_if_fail (GST_IS_D3D11_WINDOW (window));
klass = GST_D3D11_WINDOW_GET_CLASS (window);
if (klass->set_render_rectangle)
klass->set_render_rectangle (window, rect);
}
void
gst_d3d11_window_set_title (GstD3D11Window * window, const gchar * title)
{
GstD3D11WindowClass *klass;
g_return_if_fail (GST_IS_D3D11_WINDOW (window));
klass = GST_D3D11_WINDOW_GET_CLASS (window);
if (klass->set_title)
klass->set_title (window, title);
}
static GstFlowReturn
gst_d3d11_window_present (GstD3D11Window * self, GstBuffer * buffer,
GstBuffer * backbuffer, GstBuffer * multisample)
{
GstD3D11WindowClass *klass = GST_D3D11_WINDOW_GET_CLASS (self);
GstFlowReturn ret = GST_FLOW_OK;
GstVideoCropMeta *crop_meta;
RECT input_rect = self->input_rect;
RECT *prev_rect = &self->prev_input_rect;
ID3D11RenderTargetView *rtv;
GstMemory *mem;
GstD3D11Memory *dmem;
GstBuffer *target_buf;
ID3D11DeviceContext *context;
if (!buffer)
return GST_FLOW_OK;
if (!backbuffer) {
GST_ERROR_OBJECT (self, "Empty render target");
return GST_FLOW_ERROR;
}
if (multisample)
target_buf = multisample;
else
target_buf = backbuffer;
mem = gst_buffer_peek_memory (target_buf, 0);
if (!gst_is_d3d11_memory (mem)) {
GST_ERROR_OBJECT (self, "Invalid back buffer");
return GST_FLOW_ERROR;
}
dmem = GST_D3D11_MEMORY_CAST (mem);
rtv = gst_d3d11_memory_get_render_target_view (dmem, 0);
if (!rtv) {
GST_ERROR_OBJECT (self, "RTV is unavailable");
return GST_FLOW_ERROR;
}
context = gst_d3d11_device_get_device_context_handle (self->device);
/* We use flip mode swapchain and will not redraw borders.
* So backbuffer should be cleared manually in order to remove artifact of
* previous client's rendering on present signal */
if (self->emit_present || self->first_present) {
const FLOAT clear_color[] = { 0.0f, 0.0f, 0.0f, 1.0f };
context->ClearRenderTargetView (rtv, clear_color);
}
crop_meta = gst_buffer_get_video_crop_meta (buffer);
if (crop_meta) {
input_rect.left = crop_meta->x;
input_rect.right = crop_meta->x + crop_meta->width;
input_rect.top = crop_meta->y;
input_rect.bottom = crop_meta->y + crop_meta->height;
}
if (input_rect.left != prev_rect->left || input_rect.top != prev_rect->top ||
input_rect.right != prev_rect->right ||
input_rect.bottom != prev_rect->bottom) {
g_object_set (self->converter, "src-x", (gint) input_rect.left,
"src-y", (gint) input_rect.top,
"src-width", (gint) (input_rect.right - input_rect.left),
"src-height", (gint) (input_rect.bottom - input_rect.top), nullptr);
self->prev_input_rect = input_rect;
}
if (self->first_present) {
D3D11_VIEWPORT viewport;
viewport.TopLeftX = self->render_rect.left;
viewport.TopLeftY = self->render_rect.top;
viewport.Width = self->render_rect.right - self->render_rect.left;
viewport.Height = self->render_rect.bottom - self->render_rect.top;
viewport.MinDepth = 0.0f;
viewport.MaxDepth = 1.0f;
g_object_set (self->converter, "dest-x", (gint) viewport.TopLeftX,
"dest-y", (gint) viewport.TopLeftY,
"dest-width", (gint) viewport.Width,
"dest-height", (gint) viewport.Height, nullptr);
if (!gst_d3d11_need_transform (self->rotation_x, self->rotation_y,
self->rotation_z, self->scale_x, self->scale_y)) {
g_object_set (self->converter, "video-direction", self->method, nullptr);
} else {
GST_DEBUG_OBJECT (self, "Applying custom transform");
gst_d3d11_converter_apply_transform (self->converter, self->method,
viewport.Width, viewport.Height, self->fov, self->ortho,
self->rotation_x, self->rotation_y, self->rotation_z,
self->scale_x, self->scale_y);
}
gst_d3d11_overlay_compositor_update_viewport (self->compositor, &viewport);
}
if (!gst_d3d11_converter_convert_buffer_unlocked (self->converter,
buffer, target_buf)) {
GST_ERROR_OBJECT (self, "Couldn't render buffer");
return GST_FLOW_ERROR;
}
if (multisample) {
GstD3D11Memory *src_mem;
GstD3D11Memory *dst_mem;
src_mem = (GstD3D11Memory *) gst_buffer_peek_memory (multisample, 0);
dst_mem = (GstD3D11Memory *) gst_buffer_peek_memory (backbuffer, 0);
auto src_tex = gst_d3d11_memory_get_resource_handle (src_mem);
auto dst_tex = gst_d3d11_memory_get_resource_handle (dst_mem);
context->ResolveSubresource (dst_tex, 0, src_tex, 0, self->dxgi_format);
rtv = gst_d3d11_memory_get_render_target_view (dst_mem, 0);
}
gst_d3d11_overlay_compositor_upload (self->compositor, buffer);
gst_d3d11_overlay_compositor_draw_unlocked (self->compositor, &rtv);
if (klass->present) {
if (self->emit_present) {
g_signal_emit (self, d3d11_window_signals[SIGNAL_PRESENT], 0,
self->device, rtv, nullptr);
}
ret = klass->present (self, 0);
}
self->first_present = FALSE;
return ret;
}
GstFlowReturn
gst_d3d11_window_render (GstD3D11Window * window, GstBuffer * buffer)
{
g_return_val_if_fail (GST_IS_D3D11_WINDOW (window), GST_FLOW_ERROR);
GstD3D11DeviceLockGuard lk (window->device);
if (buffer)
gst_buffer_replace (&window->cached_buffer, buffer);
return gst_d3d11_window_present (window, window->cached_buffer,
window->backbuffer, window->msaa_buffer);
}
GstFlowReturn
gst_d3d11_window_render_on_shared_handle (GstD3D11Window * window,
GstBuffer * buffer, HANDLE shared_handle, guint texture_misc_flags,
guint64 acquire_key, guint64 release_key)
{
GstD3D11WindowClass *klass;
GstFlowReturn ret = GST_FLOW_OK;
GstD3D11WindowSharedHandleData data = { nullptr, };
g_return_val_if_fail (GST_IS_D3D11_WINDOW (window), GST_FLOW_ERROR);
klass = GST_D3D11_WINDOW_GET_CLASS (window);
g_assert (klass->open_shared_handle != NULL);
g_assert (klass->release_shared_handle != NULL);
data.shared_handle = shared_handle;
data.texture_misc_flags = texture_misc_flags;
data.acquire_key = acquire_key;
data.release_key = release_key;
GstD3D11DeviceLockGuard (window->device);
if (!klass->open_shared_handle (window, &data)) {
GST_ERROR_OBJECT (window, "Couldn't open shared handle");
return GST_FLOW_OK;
}
ret = gst_d3d11_window_present (window, buffer, data.render_target, nullptr);
klass->release_shared_handle (window, &data);
return ret;
}
gboolean
gst_d3d11_window_unlock (GstD3D11Window * window)
{
GstD3D11WindowClass *klass;
gboolean ret = TRUE;
g_return_val_if_fail (GST_IS_D3D11_WINDOW (window), FALSE);
klass = GST_D3D11_WINDOW_GET_CLASS (window);
if (klass->unlock)
ret = klass->unlock (window);
return ret;
}
gboolean
gst_d3d11_window_unlock_stop (GstD3D11Window * window)
{
GstD3D11WindowClass *klass;
gboolean ret = TRUE;
g_return_val_if_fail (GST_IS_D3D11_WINDOW (window), FALSE);
klass = GST_D3D11_WINDOW_GET_CLASS (window);
if (klass->unlock_stop)
ret = klass->unlock_stop (window);
GstD3D11DeviceLockGuard lk (window->device);
gst_clear_buffer (&window->cached_buffer);
return ret;
}
void
gst_d3d11_window_unprepare (GstD3D11Window * window)
{
GstD3D11WindowClass *klass;
g_return_if_fail (GST_IS_D3D11_WINDOW (window));
klass = GST_D3D11_WINDOW_GET_CLASS (window);
if (klass->unprepare)
klass->unprepare (window);
}
GstD3D11WindowNativeType
gst_d3d11_window_get_native_type_from_handle (guintptr handle)
{
if (!handle)
return GST_D3D11_WINDOW_NATIVE_TYPE_NONE;
#if (!GST_D3D11_WINAPI_ONLY_APP)
if (IsWindow ((HWND) handle))
return GST_D3D11_WINDOW_NATIVE_TYPE_HWND;
#endif
#if GST_D3D11_WINAPI_ONLY_APP
{
/* *INDENT-OFF* */
ComPtr<IInspectable> window = reinterpret_cast<IInspectable*> (handle);
ComPtr<ABI::Windows::UI::Core::ICoreWindow> core_window;
ComPtr<ABI::Windows::UI::Xaml::Controls::ISwapChainPanel> panel;
/* *INDENT-ON* */
if (SUCCEEDED (window.As (&core_window)))
return GST_D3D11_WINDOW_NATIVE_TYPE_CORE_WINDOW;
if (SUCCEEDED (window.As (&panel)))
return GST_D3D11_WINDOW_NATIVE_TYPE_SWAP_CHAIN_PANEL;
}
#endif
return GST_D3D11_WINDOW_NATIVE_TYPE_NONE;
}
const gchar *
gst_d3d11_window_get_native_type_to_string (GstD3D11WindowNativeType type)
{
switch (type) {
case GST_D3D11_WINDOW_NATIVE_TYPE_NONE:
return "none";
case GST_D3D11_WINDOW_NATIVE_TYPE_HWND:
return "hwnd";
case GST_D3D11_WINDOW_NATIVE_TYPE_CORE_WINDOW:
return "core-window";
case GST_D3D11_WINDOW_NATIVE_TYPE_SWAP_CHAIN_PANEL:
return "swap-chain-panel";
default:
break;
}
return "none";
}
void
gst_d3d11_window_set_orientation (GstD3D11Window * window, gboolean immediate,
GstVideoOrientationMethod method, gfloat fov, gboolean ortho,
gfloat rotation_x, gfloat rotation_y, gfloat rotation_z,
gfloat scale_x, gfloat scale_y)
{
GstD3D11DeviceLockGuard lk (window->device);
if (window->method != method || window->fov != fov || window->ortho != ortho
|| window->rotation_x != rotation_x || window->rotation_y != rotation_y
|| window->rotation_z != rotation_z || window->scale_x != scale_x
|| window->scale_y != scale_y) {
window->method = method;
window->fov = fov;
window->ortho = ortho;
window->rotation_x = rotation_x;
window->rotation_y = rotation_y;
window->rotation_z = rotation_z;
window->scale_x = scale_x;
window->scale_y = scale_y;
window->first_present = TRUE;
if (immediate && window->swap_chain && window->backbuffer
&& window->cached_buffer) {
gst_d3d11_window_present (window, window->cached_buffer,
window->backbuffer, window->msaa_buffer);
}
}
}
void
gst_d3d11_window_set_msaa_mode (GstD3D11Window * window, GstD3D11MSAAMode mode)
{
GstD3D11DeviceLockGuard lk (window->device);
if (window->msaa != mode) {
window->msaa = mode;
if (window->swap_chain) {
GstD3D11WindowClass *klass = GST_D3D11_WINDOW_GET_CLASS (window);
klass->on_resize (window, window->surface_width, window->surface_height);
}
}
}
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