d3d11converter: Set alpha-mode using config

... and disallow runtime alpha-mode update for now

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5457>

subprojects/gst-plugins-bad/gst-libs/gst/d3d11/gstd3d11converter.cpp

@@ -669,8 +669,6 @@ enum
   PROP_DEST_MASTERING_DISPLAY_INFO,
   PROP_DEST_CONTENT_LIGHT_LEVEL,
   PROP_VIDEO_DIRECTION,
-  PROP_SRC_ALPHA_MODE,
-  PROP_DEST_ALPHA_MODE,
 };
 
 struct _GstD3D11ConverterPrivate
@@ -890,14 +888,6 @@ gst_d3d11_converter_class_init (GstD3D11ConverterClass * klass)
       g_param_spec_enum ("video-direction", "Video Direction",
           "Video direction", GST_TYPE_VIDEO_ORIENTATION_METHOD,
           GST_VIDEO_ORIENTATION_IDENTITY, param_flags));
-  g_object_class_install_property (object_class, PROP_SRC_ALPHA_MODE,
-      g_param_spec_enum ("src-alpha-mode", "Src Alpha Mode",
-          "Src alpha mode to use", GST_TYPE_D3D11_CONVERTER_ALPHA_MODE,
-          GST_D3D11_CONVERTER_ALPHA_MODE_UNSPECIFIED, param_flags));
-  g_object_class_install_property (object_class, PROP_DEST_ALPHA_MODE,
-      g_param_spec_enum ("dest-alpha-mode", "Dest Alpha Mode",
-          "Dest alpha mode to use", GST_TYPE_D3D11_CONVERTER_ALPHA_MODE,
-          GST_D3D11_CONVERTER_ALPHA_MODE_UNSPECIFIED, param_flags));
 
   GST_DEBUG_CATEGORY_INIT (gst_d3d11_converter_debug,
       "d3d11converter", 0, "d3d11converter");
@@ -1119,38 +1109,6 @@ gst_d3d11_converter_set_property (GObject * object, guint prop_id,
       }
       break;
     }
-    case PROP_SRC_ALPHA_MODE:
-    {
-      DWORD prev_premul = priv->const_data.in_premul_alpha;
-      priv->src_alpha_mode = (GstD3D11ConverterAlphaMode)
-          g_value_get_enum (value);
-      if (priv->src_alpha_mode == GST_D3D11_CONVERTER_ALPHA_MODE_PREMULTIPLIED) {
-        priv->const_data.in_premul_alpha = TRUE;
-      } else {
-        priv->const_data.in_premul_alpha = FALSE;
-      }
-
-      if (prev_premul != priv->const_data.in_premul_alpha) {
-        priv->update_alpha = TRUE;
-      }
-      break;
-    }
-    case PROP_DEST_ALPHA_MODE:
-    {
-      DWORD prev_premul = priv->const_data.out_premul_alpha;
-      priv->dst_alpha_mode = (GstD3D11ConverterAlphaMode)
-          g_value_get_enum (value);
-      if (priv->dst_alpha_mode == GST_D3D11_CONVERTER_ALPHA_MODE_PREMULTIPLIED) {
-        priv->const_data.out_premul_alpha = TRUE;
-      } else {
-        priv->const_data.out_premul_alpha = FALSE;
-      }
-
-      if (prev_premul != priv->const_data.out_premul_alpha) {
-        priv->update_alpha = TRUE;
-      }
-      break;
-    }
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
       break;
@@ -1232,12 +1190,6 @@ gst_d3d11_converter_get_property (GObject * object, guint prop_id,
     case PROP_VIDEO_DIRECTION:
       g_value_set_enum (value, priv->video_direction);
       break;
-    case PROP_SRC_ALPHA_MODE:
-      g_value_set_enum (value, priv->src_alpha_mode);
-      break;
-    case PROP_DEST_ALPHA_MODE:
-      g_value_set_enum (value, priv->dst_alpha_mode);
-      break;
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
       break;
@@ -3265,9 +3217,21 @@ gst_d3d11_converter_new (GstD3D11Device * device, const GstVideoInfo * in_info,
 
     gst_structure_get_enum (config, GST_D3D11_CONVERTER_OPT_SAMPLER_FILTER,
         GST_TYPE_D3D11_CONVERTER_SAMPLER_FILTER, (int *) &sampler_filter);
+
+    gst_structure_get_enum (config, GST_D3D11_CONVERTER_OPT_SRC_ALPHA_MODE,
+        GST_TYPE_D3D11_CONVERTER_ALPHA_MODE, (int *) &priv->src_alpha_mode);
+    gst_structure_get_enum (config, GST_D3D11_CONVERTER_OPT_DEST_ALPHA_MODE,
+        GST_TYPE_D3D11_CONVERTER_ALPHA_MODE, (int *) &priv->dst_alpha_mode);
+
     gst_structure_free (config);
   }
 
+  if (priv->src_alpha_mode == GST_D3D11_CONVERTER_ALPHA_MODE_PREMULTIPLIED)
+    priv->const_data.in_premul_alpha = TRUE;
+
+  if (priv->dst_alpha_mode == GST_D3D11_CONVERTER_ALPHA_MODE_PREMULTIPLIED)
+    priv->const_data.out_premul_alpha = TRUE;
+
   if (!wanted_backend) {
     wanted_backend =
         GST_D3D11_CONVERTER_BACKEND_SHADER |

subprojects/gst-plugins-bad/gst-libs/gst/d3d11/gstd3d11converter.h

@@ -122,6 +122,26 @@ GST_D3D11_API
 GType gst_d3d11_converter_alpha_mode_get_type (void);
 #define GST_TYPE_D3D11_CONVERTER_ALPHA_MODE (gst_d3d11_converter_alpha_mode_get_type())
 
+/**
+ * GST_D3D11_CONVERTER_OPT_SRC_ALPHA_MODE:
+ *
+ * Set the source alpha mode.
+ * Default is #GST_D3D11_CONVERTER_ALPHA_MODE_UNSPECIFIED.
+ *
+ * Since: 1.24
+ */
+#define GST_D3D11_CONVERTER_OPT_SRC_ALPHA_MODE "GstD3D11Converter.src-alpha-mode"
+
+/**
+ * GST_D3D11_CONVERTER_OPT_DEST_ALPHA_MODE:
+ *
+ * Set the source alpha mode.
+ * Default is #GST_D3D11_CONVERTER_ALPHA_MODE_UNSPECIFIED.
+ *
+ * Since: 1.24
+ */
+#define GST_D3D11_CONVERTER_OPT_DEST_ALPHA_MODE "GstD3D11Converter.dest-alpha-mode"
+
 /**
  * GstD3D11Converter:
  *

subprojects/gst-plugins-bad/sys/d3d11/gstd3d11convert.cpp

@@ -1724,7 +1724,12 @@ gst_d3d11_base_convert_set_info (GstD3D11BaseFilter * filter,
       GST_D3D11_CONVERTER_OPT_SAMPLER_FILTER,
       GST_TYPE_D3D11_CONVERTER_SAMPLER_FILTER,
       gst_d3d11_base_convert_sampling_method_to_filter
-      (self->active_sampling_method), nullptr);
+      (self->active_sampling_method),
+      GST_D3D11_CONVERTER_OPT_SRC_ALPHA_MODE,
+      GST_TYPE_D3D11_CONVERTER_ALPHA_MODE,
+      self->src_alpha_mode,
+      GST_D3D11_CONVERTER_OPT_DEST_ALPHA_MODE,
+      GST_TYPE_D3D11_CONVERTER_ALPHA_MODE, self->dst_alpha_mode, nullptr);
 
   self->converter = gst_d3d11_converter_new (filter->device, in_info, out_info,
       config);
@@ -1769,9 +1774,7 @@ gst_d3d11_base_convert_set_info (GstD3D11BaseFilter * filter,
       "dest-y", (gint) self->out_rect.top,
       "dest-width", (gint) (self->out_rect.right - self->out_rect.left),
       "dest-height", (gint) (self->out_rect.bottom - self->out_rect.top),
-      "video-direction", self->active_method,
+      "video-direction", self->active_method, nullptr);
-      "src-alpha-mode", self->src_alpha_mode,
-      "dest-alpha-mode", self->dst_alpha_mode, nullptr);
 
   if (self->borders_w > 0 || self->borders_h > 0) {
     g_object_set (self->converter, "fill-border", TRUE, "border-color",
@@ -2245,9 +2248,10 @@ gst_d3d11_base_convert_set_src_alpha_mode (GstD3D11BaseConvert * self,
 {
   GstD3D11SRWLockGuard lk (&self->lock);
 
-  self->src_alpha_mode = mode;
+  if (self->src_alpha_mode != mode) {
-  if (self->converter)
+    self->src_alpha_mode = mode;
-    g_object_set (self->converter, "src-alpha-mode", mode, nullptr);
+    gst_base_transform_reconfigure_src (GST_BASE_TRANSFORM_CAST (self));
+  }
 }
 
 static void
@@ -2256,9 +2260,10 @@ gst_d3d11_base_convert_set_dst_alpha_mode (GstD3D11BaseConvert * self,
 {
   GstD3D11SRWLockGuard lk (&self->lock);
 
-  self->dst_alpha_mode = mode;
+  if (self->dst_alpha_mode != mode) {
-  if (self->converter)
+    self->dst_alpha_mode = mode;
-    g_object_set (self->converter, "dest-alpha-mode", mode, nullptr);
+    gst_base_transform_reconfigure_src (GST_BASE_TRANSFORM_CAST (self));
+  }
 }
 
 /**

subprojects/gst-plugins-bad/sys/d3d11/gstd3d11testsrc.cpp

@@ -1299,7 +1299,17 @@ gst_d3d11_test_src_setup_resource (GstD3D11TestSrc * self, GstCaps * caps)
 
   config = gst_structure_new ("converter-config",
       GST_D3D11_CONVERTER_OPT_BACKEND, GST_TYPE_D3D11_CONVERTER_BACKEND,
-      GST_D3D11_CONVERTER_BACKEND_SHADER, nullptr);
+      GST_D3D11_CONVERTER_BACKEND_SHADER,
+      GST_D3D11_CONVERTER_OPT_DEST_ALPHA_MODE,
+      GST_TYPE_D3D11_CONVERTER_ALPHA_MODE, self->alpha_mode, nullptr);
+
+  /* D2D uses premultiplied alpha */
+  if (self->pattern == GST_D3D11_TEST_SRC_CIRCULAR ||
+      self->pattern == GST_D3D11_TEST_SRC_BALL) {
+    gst_structure_set (config, GST_D3D11_CONVERTER_OPT_SRC_ALPHA_MODE,
+        GST_TYPE_D3D11_CONVERTER_ALPHA_MODE,
+        GST_D3D11_CONVERTER_ALPHA_MODE_PREMULTIPLIED, nullptr);
+  }
 
   gst_video_info_set_format (&draw_info, GST_VIDEO_FORMAT_BGRA,
       self->info.width, self->info.height);
@@ -1311,15 +1321,6 @@ gst_d3d11_test_src_setup_resource (GstD3D11TestSrc * self, GstCaps * caps)
     goto error;
   }
 
-  /* D2D uses premultiplied alpha */
-  if (self->pattern == GST_D3D11_TEST_SRC_CIRCULAR ||
-      self->pattern == GST_D3D11_TEST_SRC_BALL) {
-    g_object_set (self->converter, "src-alpha-mode",
-        GST_D3D11_CONVERTER_ALPHA_MODE_PREMULTIPLIED, nullptr);
-  }
-
-  g_object_set (self->converter, "dest-alpha-mode", self->alpha_mode, nullptr);
-
   draw_caps = gst_video_info_to_caps (&draw_info);
   params = gst_d3d11_allocation_params_new (self->device, &draw_info,
       GST_D3D11_ALLOCATION_FLAG_DEFAULT,

subprojects/gst-plugins-bad/sys/d3d11/gstd3d11window.cpp

@@ -755,6 +755,19 @@ gst_d3d11_window_prepare_default (GstD3D11Window * window, guint display_width,
   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);
 
@@ -765,11 +778,6 @@ gst_d3d11_window_prepare_default (GstD3D11Window * window, guint display_width,
     return GST_FLOW_ERROR;
   }
 
-  if (GST_VIDEO_INFO_HAS_ALPHA (&window->info)) {
-    g_object_set (window->converter, "dest-alpha-mode",
-        GST_D3D11_CONVERTER_ALPHA_MODE_PREMULTIPLIED, nullptr);
-  }
-
   if (have_hdr10_meta) {
     g_object_set (window->converter, "src-mastering-display-info", mdcv_str,
         "src-content-light-level", cll_str, nullptr);

subprojects/gst-plugins-bad/sys/dwrite/gstdwriteoverlayobject.cpp

@@ -234,7 +234,8 @@ is_subsampled_yuv (const GstVideoInfo * info)
 
 static GstD3D11Converter *
 gst_dwrite_overlay_object_create_converter (GstDWriteOverlayObject * self,
-    const GstVideoInfo * in_info, const GstVideoInfo * out_info)
+    const GstVideoInfo * in_info, const GstVideoInfo * out_info,
+    gboolean is_blend)
 {
   GstD3D11Converter *ret;
   GstDWriteOverlayObjectPrivate *priv = self->priv;
@@ -249,6 +250,11 @@ gst_dwrite_overlay_object_create_converter (GstDWriteOverlayObject * self,
       GST_D3D11_CONVERTER_BACKEND_SHADER,
       GST_D3D11_CONVERTER_OPT_SAMPLER_FILTER,
       GST_TYPE_D3D11_CONVERTER_SAMPLER_FILTER, filter, nullptr);
+  if (is_blend) {
+    gst_structure_set (config, GST_D3D11_CONVERTER_OPT_SRC_ALPHA_MODE,
+        GST_TYPE_D3D11_CONVERTER_ALPHA_MODE,
+        GST_D3D11_CONVERTER_ALPHA_MODE_PREMULTIPLIED, nullptr);
+  }
 
   ret = gst_d3d11_converter_new (priv->device, in_info, out_info, config);
   if (!ret)
@@ -352,7 +358,7 @@ gst_dwrite_overlay_object_prepare_resource (GstDWriteOverlayObject * self)
       break;
     case GstDWriteBlendMode::BLEND:
       priv->blend_conv = gst_dwrite_overlay_object_create_converter (self,
-          &priv->bgra_info, &priv->info);
+          &priv->bgra_info, &priv->info, TRUE);
       if (!priv->blend_conv)
         return FALSE;
       break;
@@ -363,17 +369,17 @@ gst_dwrite_overlay_object_prepare_resource (GstDWriteOverlayObject * self)
         return FALSE;
 
       priv->pre_conv = gst_dwrite_overlay_object_create_converter (self,
-          &priv->info, &priv->bgra_info);
+          &priv->info, &priv->bgra_info, FALSE);
       if (!priv->pre_conv)
         return FALSE;
 
       priv->blend_conv = gst_dwrite_overlay_object_create_converter (self,
-          &priv->bgra_info, &priv->bgra_info);
+          &priv->bgra_info, &priv->bgra_info, TRUE);
       if (!priv->blend_conv)
         return FALSE;
 
       priv->post_conv = gst_dwrite_overlay_object_create_converter (self,
-          &priv->bgra_info, &priv->info);
+          &priv->bgra_info, &priv->info, FALSE);
       if (!priv->blend_conv)
         return FALSE;
       break;
@@ -389,17 +395,17 @@ gst_dwrite_overlay_object_prepare_resource (GstDWriteOverlayObject * self)
         return FALSE;
 
       priv->pre_conv = gst_dwrite_overlay_object_create_converter (self,
-          &priv->info, &blend_info);
+          &priv->info, &blend_info, FALSE);
       if (!priv->pre_conv)
         return FALSE;
 
       priv->blend_conv = gst_dwrite_overlay_object_create_converter (self,
-          &priv->bgra_info, &blend_info);
+          &priv->bgra_info, &blend_info, TRUE);
       if (!priv->pre_conv)
         return FALSE;
 
       priv->post_conv = gst_dwrite_overlay_object_create_converter (self,
-          &blend_info, &priv->info);
+          &blend_info, &priv->info, FALSE);
       if (!priv->post_conv)
         return FALSE;
 
@@ -433,9 +439,7 @@ gst_dwrite_overlay_object_prepare_resource (GstDWriteOverlayObject * self)
       return FALSE;
     }
 
-    g_object_set (priv->blend_conv, "blend-state", blend.Get (),
+    g_object_set (priv->blend_conv, "blend-state", blend.Get (), nullptr);
-        "src-alpha-mode", GST_D3D11_CONVERTER_ALPHA_MODE_PREMULTIPLIED,
-        nullptr);
   }
 
   return TRUE;