gstreamer/sys/d3d11/gstd3d11utils.c

597 lines
17 KiB
C
Raw Normal View History

/* 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 "gstd3d11utils.h"
#include "gstd3d11device.h"
#include <windows.h>
#include <versionhelpers.h>
GST_DEBUG_CATEGORY_STATIC (GST_CAT_CONTEXT);
GST_DEBUG_CATEGORY_EXTERN (gst_d3d11_utils_debug);
#define GST_CAT_DEFAULT gst_d3d11_utils_debug
static void
_init_context_debug (void)
{
static volatile gsize _init = 0;
if (g_once_init_enter (&_init)) {
GST_DEBUG_CATEGORY_GET (GST_CAT_CONTEXT, "GST_CONTEXT");
g_once_init_leave (&_init, 1);
}
}
/**
* gst_d3d11_handle_set_context:
* @element: a #GstElement
* @context: a #GstContext
* @device: (inout) (transfer full): location of a #GstD3DDevice
*
* Helper function for implementing #GstElementClass.set_context() in
* D3D11 capable elements.
*
* Retrieve's the #GstD3D11Device in @context and places the result in @device.
*
* Returns: whether the @device could be set successfully
*/
gboolean
gst_d3d11_handle_set_context (GstElement * element, GstContext * context,
gint adapter, GstD3D11Device ** device)
{
const gchar *context_type;
g_return_val_if_fail (GST_IS_ELEMENT (element), FALSE);
g_return_val_if_fail (device != NULL, FALSE);
_init_context_debug ();
if (!context)
return FALSE;
context_type = gst_context_get_context_type (context);
if (g_strcmp0 (context_type, GST_D3D11_DEVICE_HANDLE_CONTEXT_TYPE) == 0) {
const GstStructure *str;
GstD3D11Device *other_device = NULL;
gint other_adapter = 0;
/* If we had device already, will not replace it */
if (*device)
return TRUE;
str = gst_context_get_structure (context);
if (gst_structure_get (str, "device", GST_TYPE_D3D11_DEVICE,
&other_device, "adapter", G_TYPE_INT, &other_adapter, NULL)) {
if (adapter == -1 || adapter == other_adapter) {
GST_CAT_DEBUG_OBJECT (GST_CAT_CONTEXT,
element, "Found D3D11 device context");
*device = other_device;
return TRUE;
}
gst_object_unref (other_device);
}
}
return FALSE;
}
static void
context_set_d3d11_device (GstContext * context, GstD3D11Device * device)
{
GstStructure *s;
gint adapter;
g_return_if_fail (context != NULL);
g_object_get (G_OBJECT (device), "adapter", &adapter, NULL);
GST_CAT_LOG (GST_CAT_CONTEXT,
"setting GstD3D11Device(%" GST_PTR_FORMAT
") with adapter %d on context(%" GST_PTR_FORMAT ")",
device, adapter, context);
s = gst_context_writable_structure (context);
gst_structure_set (s, "device", GST_TYPE_D3D11_DEVICE,
device, "adapter", G_TYPE_INT, adapter, NULL);
}
/**
* gst_d3d11_handle_context_query:
* @element: a #GstElement
* @query: a #GstQuery of type %GST_QUERY_CONTEXT
* @device: (transfer none) (nullable): a #GstD3D11Device
*
* Returns: Whether the @query was successfully responded to from the passed
* @device.
*/
gboolean
gst_d3d11_handle_context_query (GstElement * element, GstQuery * query,
GstD3D11Device * device)
{
const gchar *context_type;
GstContext *context, *old_context;
g_return_val_if_fail (GST_IS_ELEMENT (element), FALSE);
g_return_val_if_fail (GST_IS_QUERY (query), FALSE);
_init_context_debug ();
GST_LOG_OBJECT (element, "handle context query %" GST_PTR_FORMAT, query);
if (!device)
return FALSE;
gst_query_parse_context_type (query, &context_type);
if (g_strcmp0 (context_type, GST_D3D11_DEVICE_HANDLE_CONTEXT_TYPE) != 0)
return FALSE;
gst_query_parse_context (query, &old_context);
if (old_context)
context = gst_context_copy (old_context);
else
context = gst_context_new (GST_D3D11_DEVICE_HANDLE_CONTEXT_TYPE, TRUE);
context_set_d3d11_device (context, device);
gst_query_set_context (query, context);
gst_context_unref (context);
GST_DEBUG_OBJECT (element, "successfully set %" GST_PTR_FORMAT
" on %" GST_PTR_FORMAT, device, query);
return TRUE;
}
static gboolean
pad_query (const GValue * item, GValue * value, gpointer user_data)
{
GstPad *pad = g_value_get_object (item);
GstQuery *query = user_data;
gboolean res;
res = gst_pad_peer_query (pad, query);
if (res) {
g_value_set_boolean (value, TRUE);
return FALSE;
}
GST_CAT_INFO_OBJECT (GST_CAT_CONTEXT, pad, "pad peer query failed");
return TRUE;
}
static gboolean
run_query (GstElement * element, GstQuery * query, GstPadDirection direction)
{
GstIterator *it;
GstIteratorFoldFunction func = pad_query;
GValue res = { 0 };
g_value_init (&res, G_TYPE_BOOLEAN);
g_value_set_boolean (&res, FALSE);
/* Ask neighbor */
if (direction == GST_PAD_SRC)
it = gst_element_iterate_src_pads (element);
else
it = gst_element_iterate_sink_pads (element);
while (gst_iterator_fold (it, func, &res, query) == GST_ITERATOR_RESYNC)
gst_iterator_resync (it);
gst_iterator_free (it);
return g_value_get_boolean (&res);
}
static void
run_d3d11_context_query (GstElement * element, GstD3D11Device ** device)
{
GstQuery *query;
GstContext *ctxt;
/* 1) Query downstream with GST_QUERY_CONTEXT for the context and
* check if downstream already has a context of the specific type
*/
query = gst_query_new_context (GST_D3D11_DEVICE_HANDLE_CONTEXT_TYPE);
if (run_query (element, query, GST_PAD_SRC)) {
gst_query_parse_context (query, &ctxt);
GST_CAT_INFO_OBJECT (GST_CAT_CONTEXT, element,
"found context (%" GST_PTR_FORMAT ") in downstream query", ctxt);
gst_element_set_context (element, ctxt);
}
/* 2) although we found d3d11 device context above, the element does not want
* to use the context. Then try to find from the other direction */
if (*device == NULL && run_query (element, query, GST_PAD_SINK)) {
gst_query_parse_context (query, &ctxt);
GST_CAT_INFO_OBJECT (GST_CAT_CONTEXT, element,
"found context (%" GST_PTR_FORMAT ") in upstream query", ctxt);
gst_element_set_context (element, ctxt);
}
if (*device == NULL) {
/* 3) Post a GST_MESSAGE_NEED_CONTEXT message on the bus with
* the required context type and afterwards check if a
* usable context was set now as in 1). The message could
* be handled by the parent bins of the element and the
* application.
*/
GstMessage *msg;
GST_CAT_INFO_OBJECT (GST_CAT_CONTEXT, element,
"posting need context message");
msg = gst_message_new_need_context (GST_OBJECT_CAST (element),
GST_D3D11_DEVICE_HANDLE_CONTEXT_TYPE);
gst_element_post_message (element, msg);
}
/*
* Whomever responds to the need-context message performs a
* GstElement::set_context() with the required context in which the element
* is required to update the display_ptr or call gst_gl_handle_set_context().
*/
gst_query_unref (query);
}
/**
* gst_d3d11_ensure_element_data:
* @element: the #GstElement running the query
* @adapter: prefered adapter index, pass adapter >=0 when
* the adapter explicitly required. Otherwise, set -1.
* @device: (inout): the resulting #GstD3D11Device
*
* Perform the steps necessary for retrieving a #GstD3D11Device
* from the surrounding elements or from the application using the #GstContext mechanism.
*
* If the contents of @device is not %NULL, then no #GstContext query is
* necessary for #GstD3D11Device retrieval is performed.
*
* Returns: whether a #GstD3D11Device exists in @device
*/
gboolean
gst_d3d11_ensure_element_data (GstElement * element, gint adapter,
GstD3D11Device ** device)
{
guint target_adapter = 0;
g_return_val_if_fail (element != NULL, FALSE);
g_return_val_if_fail (device != NULL, FALSE);
_init_context_debug ();
if (*device) {
GST_LOG_OBJECT (element, "already have a device %" GST_PTR_FORMAT, *device);
return TRUE;
}
run_d3d11_context_query (element, device);
if (*device)
return TRUE;
if (adapter > 0)
target_adapter = adapter;
*device = gst_d3d11_device_new (target_adapter);
if (*device == NULL) {
GST_ERROR_OBJECT (element,
"Couldn't create new device with adapter index %d", target_adapter);
return FALSE;
} else {
GstContext *context;
GstMessage *msg;
/* Propagate new D3D11 device context */
context = gst_context_new (GST_D3D11_DEVICE_HANDLE_CONTEXT_TYPE, TRUE);
context_set_d3d11_device (context, *device);
gst_element_set_context (element, context);
GST_CAT_INFO_OBJECT (GST_CAT_CONTEXT, element,
"posting have context (%p) message with D3D11 device context (%p)",
context, *device);
msg = gst_message_new_have_context (GST_OBJECT_CAST (element), context);
gst_element_post_message (GST_ELEMENT_CAST (element), msg);
}
return TRUE;
}
gboolean
gst_d3d11_is_windows_8_or_greater (void)
{
static gsize version_once = 0;
static gboolean ret = FALSE;
if (g_once_init_enter (&version_once)) {
#if (!GST_D3D11_WINAPI_ONLY_APP)
if (IsWindows8OrGreater ())
ret = TRUE;
#else
ret = TRUE;
#endif
g_once_init_leave (&version_once, 1);
}
return ret;
}
/*
* This is an incomplete matrix of in formats and a score for the prefered output
* format.
*
* out: RGB24 RGB16 ARGB AYUV YUV444 YUV422 YUV420 YUV411 YUV410 PAL GRAY
* in
* RGB24 0 2 1 2 2 3 4 5 6 7 8
* RGB16 1 0 1 2 2 3 4 5 6 7 8
* ARGB 2 3 0 1 4 5 6 7 8 9 10
* AYUV 3 4 1 0 2 5 6 7 8 9 10
* YUV444 2 4 3 1 0 5 6 7 8 9 10
* YUV422 3 5 4 2 1 0 6 7 8 9 10
* YUV420 4 6 5 3 2 1 0 7 8 9 10
* YUV411 4 6 5 3 2 1 7 0 8 9 10
* YUV410 6 8 7 5 4 3 2 1 0 9 10
* PAL 1 3 2 6 4 6 7 8 9 0 10
* GRAY 1 4 3 2 1 5 6 7 8 9 0
*
* PAL or GRAY are never prefered, if we can we would convert to PAL instead
* of GRAY, though
* less subsampling is prefered and if any, preferably horizontal
* We would like to keep the alpha, even if we would need to to colorspace conversion
* or lose depth.
*/
#define SCORE_FORMAT_CHANGE 1
#define SCORE_DEPTH_CHANGE 1
#define SCORE_ALPHA_CHANGE 1
#define SCORE_CHROMA_W_CHANGE 1
#define SCORE_CHROMA_H_CHANGE 1
#define SCORE_PALETTE_CHANGE 1
#define SCORE_COLORSPACE_LOSS 2 /* RGB <-> YUV */
#define SCORE_DEPTH_LOSS 4 /* change bit depth */
#define SCORE_ALPHA_LOSS 8 /* lose the alpha channel */
#define SCORE_CHROMA_W_LOSS 16 /* vertical subsample */
#define SCORE_CHROMA_H_LOSS 32 /* horizontal subsample */
#define SCORE_PALETTE_LOSS 64 /* convert to palette format */
#define SCORE_COLOR_LOSS 128 /* convert to GRAY */
#define COLORSPACE_MASK (GST_VIDEO_FORMAT_FLAG_YUV | \
GST_VIDEO_FORMAT_FLAG_RGB | GST_VIDEO_FORMAT_FLAG_GRAY)
#define ALPHA_MASK (GST_VIDEO_FORMAT_FLAG_ALPHA)
#define PALETTE_MASK (GST_VIDEO_FORMAT_FLAG_PALETTE)
/* calculate how much loss a conversion would be */
static void
score_value (const GstVideoFormatInfo * in_info,
const GValue * val, gint * min_loss, const GstVideoFormatInfo ** out_info)
{
const gchar *fname;
const GstVideoFormatInfo *t_info;
GstVideoFormatFlags in_flags, t_flags;
gint loss;
fname = g_value_get_string (val);
t_info = gst_video_format_get_info (gst_video_format_from_string (fname));
if (!t_info)
return;
/* accept input format immediately without loss */
if (in_info == t_info) {
*min_loss = 0;
*out_info = t_info;
return;
}
loss = SCORE_FORMAT_CHANGE;
in_flags = GST_VIDEO_FORMAT_INFO_FLAGS (in_info);
in_flags &= ~GST_VIDEO_FORMAT_FLAG_LE;
in_flags &= ~GST_VIDEO_FORMAT_FLAG_COMPLEX;
in_flags &= ~GST_VIDEO_FORMAT_FLAG_UNPACK;
t_flags = GST_VIDEO_FORMAT_INFO_FLAGS (t_info);
t_flags &= ~GST_VIDEO_FORMAT_FLAG_LE;
t_flags &= ~GST_VIDEO_FORMAT_FLAG_COMPLEX;
t_flags &= ~GST_VIDEO_FORMAT_FLAG_UNPACK;
if ((t_flags & PALETTE_MASK) != (in_flags & PALETTE_MASK)) {
loss += SCORE_PALETTE_CHANGE;
if (t_flags & PALETTE_MASK)
loss += SCORE_PALETTE_LOSS;
}
if ((t_flags & COLORSPACE_MASK) != (in_flags & COLORSPACE_MASK)) {
loss += SCORE_COLORSPACE_LOSS;
if (t_flags & GST_VIDEO_FORMAT_FLAG_GRAY)
loss += SCORE_COLOR_LOSS;
}
if ((t_flags & ALPHA_MASK) != (in_flags & ALPHA_MASK)) {
loss += SCORE_ALPHA_CHANGE;
if (in_flags & ALPHA_MASK)
loss += SCORE_ALPHA_LOSS;
}
if ((in_info->h_sub[1]) != (t_info->h_sub[1])) {
loss += SCORE_CHROMA_H_CHANGE;
if ((in_info->h_sub[1]) < (t_info->h_sub[1]))
loss += SCORE_CHROMA_H_LOSS;
}
if ((in_info->w_sub[1]) != (t_info->w_sub[1])) {
loss += SCORE_CHROMA_W_CHANGE;
if ((in_info->w_sub[1]) < (t_info->w_sub[1]))
loss += SCORE_CHROMA_W_LOSS;
}
if ((in_info->bits) != (t_info->bits)) {
loss += SCORE_DEPTH_CHANGE;
if ((in_info->bits) > (t_info->bits))
loss += SCORE_DEPTH_LOSS + (in_info->bits - t_info->bits);
}
GST_DEBUG ("score %s -> %s = %d",
GST_VIDEO_FORMAT_INFO_NAME (in_info),
GST_VIDEO_FORMAT_INFO_NAME (t_info), loss);
if (loss < *min_loss) {
GST_DEBUG ("found new best %d", loss);
*out_info = t_info;
*min_loss = loss;
}
}
GstCaps *
gst_d3d11_caps_fixate_format (GstCaps * caps, GstCaps * othercaps)
{
GstStructure *ins, *outs;
const gchar *in_format;
const GstVideoFormatInfo *in_info, *out_info = NULL;
gint min_loss = G_MAXINT;
guint i, capslen;
GstCaps *result;
result = gst_caps_intersect (othercaps, caps);
if (gst_caps_is_empty (result)) {
gst_caps_unref (result);
result = othercaps;
} else {
gst_caps_unref (othercaps);
}
result = gst_caps_make_writable (result);
ins = gst_caps_get_structure (caps, 0);
in_format = gst_structure_get_string (ins, "format");
if (!in_format) {
gst_caps_unref (result);
return NULL;
}
GST_DEBUG ("source format %s", in_format);
in_info =
gst_video_format_get_info (gst_video_format_from_string (in_format));
if (!in_info) {
gst_caps_unref (result);
return NULL;
}
outs = gst_caps_get_structure (result, 0);
capslen = gst_caps_get_size (result);
GST_DEBUG ("iterate %d structures", capslen);
for (i = 0; i < capslen; i++) {
GstStructure *tests;
const GValue *format;
tests = gst_caps_get_structure (result, i);
format = gst_structure_get_value (tests, "format");
/* should not happen */
if (format == NULL)
continue;
if (GST_VALUE_HOLDS_LIST (format)) {
gint j, len;
len = gst_value_list_get_size (format);
GST_DEBUG ("have %d formats", len);
for (j = 0; j < len; j++) {
const GValue *val;
val = gst_value_list_get_value (format, j);
if (G_VALUE_HOLDS_STRING (val)) {
score_value (in_info, val, &min_loss, &out_info);
if (min_loss == 0)
break;
}
}
} else if (G_VALUE_HOLDS_STRING (format)) {
score_value (in_info, format, &min_loss, &out_info);
}
}
if (out_info)
gst_structure_set (outs, "format", G_TYPE_STRING,
GST_VIDEO_FORMAT_INFO_NAME (out_info), NULL);
return result;
}
static gchar *
gst_d3d11_hres_to_string (HRESULT hr)
{
DWORD flags;
gchar *ret_text;
LPTSTR error_text = NULL;
flags = FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER
| FORMAT_MESSAGE_IGNORE_INSERTS;
FormatMessage (flags, NULL, hr, MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR) & error_text, 0, NULL);
#ifdef UNICODE
/* If UNICODE is defined, LPTSTR is LPWSTR which is UTF-16 */
ret_text = g_utf16_to_utf8 (error_text, 0, NULL, NULL, NULL);
#else
ret_text = g_strdup (error_text);
#endif
LocalFree (error_text);
return ret_text;
}
gboolean
_gst_d3d11_result (HRESULT hr, GstD3D11Device * device, GstDebugCategory * cat,
const gchar * file, const gchar * function, gint line)
{
#ifndef GST_DISABLE_GST_DEBUG
gboolean ret = TRUE;
if (FAILED (hr)) {
gchar *error_text = NULL;
error_text = gst_d3d11_hres_to_string (hr);
gst_debug_log (cat, GST_LEVEL_WARNING, file, function, line,
NULL, "D3D11 call failed: 0x%x, %s", (guint) hr, error_text);
g_free (error_text);
ret = FALSE;
}
#if (HAVE_D3D11SDKLAYERS_H || HAVE_DXGIDEBUG_H)
if (device) {
gst_d3d11_device_d3d11_debug (device, file, function, line);
gst_d3d11_device_dxgi_debug (device, file, function, line);
}
#endif
return ret;
#else
return SUCCEEDED (hr);
#endif
}