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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-22 01:31:03 +00:00
d3d11overlaycompositor: Add support for d3d11 memory
If overlay buffer is d3d11 memory, use it directly Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4826>
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a72ca72a27
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1 changed files with 69 additions and 37 deletions
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@ -105,6 +105,8 @@ struct GstD3D11CompositionOverlay
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{
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if (overlay_rect)
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gst_video_overlay_rectangle_unref (overlay_rect);
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if (d3d11_buffer)
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gst_buffer_unref (d3d11_buffer);
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}
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GstVideoOverlayRectangle *overlay_rect = nullptr;
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@ -112,6 +114,7 @@ struct GstD3D11CompositionOverlay
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ComPtr<ID3D11ShaderResourceView> srv;
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ComPtr<ID3D11Buffer> vertex_buffer;
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gboolean premul_alpha = FALSE;
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GstBuffer *d3d11_buffer = nullptr;
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};
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typedef std::shared_ptr<GstD3D11CompositionOverlay> GstD3D11CompositionOverlayPtr;
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@ -195,6 +198,8 @@ gst_d3d11_composition_overlay_new (GstD3D11OverlayCompositor * self,
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ComPtr < ID3D11Buffer > vertex_buffer;
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GstVideoOverlayFormatFlags flags;
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gboolean premul_alpha = FALSE;
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GstMemory *mem;
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gboolean is_d3d11 = FALSE;
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memset (&subresource_data, 0, sizeof (subresource_data));
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memset (&texture_desc, 0, sizeof (texture_desc));
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@ -225,51 +230,66 @@ gst_d3d11_composition_overlay_new (GstD3D11OverlayCompositor * self,
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return nullptr;
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}
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vmeta = gst_buffer_get_video_meta (buf);
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if (!vmeta) {
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GST_ERROR_OBJECT (self, "Failed to get video meta");
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return nullptr;
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mem = gst_buffer_peek_memory (buf, 0);
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if (gst_is_d3d11_memory (mem)) {
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GstD3D11Memory *dmem = GST_D3D11_MEMORY_CAST (mem);
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if (dmem->device == self->device) {
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srv = gst_d3d11_memory_get_shader_resource_view (dmem, 0);
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if (srv) {
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texture = (ID3D11Texture2D *)
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gst_d3d11_memory_get_resource_handle (dmem);
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is_d3d11 = TRUE;
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}
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}
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}
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if (!gst_video_meta_map (vmeta,
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0, &info, (gpointer *) & data, &stride, GST_MAP_READ)) {
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GST_ERROR_OBJECT (self, "Failed to map");
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return nullptr;
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}
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if (!is_d3d11) {
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vmeta = gst_buffer_get_video_meta (buf);
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if (!vmeta) {
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GST_ERROR_OBJECT (self, "Failed to get video meta");
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return nullptr;
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}
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/* Do create texture and upload data at once, for create immutable texture */
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subresource_data.pSysMem = data;
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subresource_data.SysMemPitch = stride;
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subresource_data.SysMemSlicePitch = 0;
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if (!gst_video_meta_map (vmeta,
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0, &info, (gpointer *) & data, &stride, GST_MAP_READ)) {
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GST_ERROR_OBJECT (self, "Failed to map");
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return nullptr;
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}
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texture_desc.Width = vmeta->width;
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texture_desc.Height = vmeta->height;
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texture_desc.MipLevels = 1;
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texture_desc.ArraySize = 1;
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texture_desc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
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texture_desc.SampleDesc.Count = 1;
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texture_desc.SampleDesc.Quality = 0;
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texture_desc.Usage = D3D11_USAGE_IMMUTABLE;
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texture_desc.BindFlags = D3D11_BIND_SHADER_RESOURCE;
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texture_desc.CPUAccessFlags = 0;
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/* Do create texture and upload data at once, for create immutable texture */
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subresource_data.pSysMem = data;
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subresource_data.SysMemPitch = stride;
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subresource_data.SysMemSlicePitch = 0;
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hr = device_handle->CreateTexture2D (&texture_desc,
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&subresource_data, &texture);
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gst_video_meta_unmap (vmeta, 0, &info);
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texture_desc.Width = vmeta->width;
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texture_desc.Height = vmeta->height;
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texture_desc.MipLevels = 1;
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texture_desc.ArraySize = 1;
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texture_desc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
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texture_desc.SampleDesc.Count = 1;
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texture_desc.SampleDesc.Quality = 0;
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texture_desc.Usage = D3D11_USAGE_IMMUTABLE;
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texture_desc.BindFlags = D3D11_BIND_SHADER_RESOURCE;
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texture_desc.CPUAccessFlags = 0;
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if (!gst_d3d11_result (hr, device)) {
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GST_ERROR_OBJECT (self, "Failed to create texture");
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return nullptr;
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}
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hr = device_handle->CreateTexture2D (&texture_desc,
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&subresource_data, &texture);
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gst_video_meta_unmap (vmeta, 0, &info);
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srv_desc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
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srv_desc.Texture2D.MipLevels = 1;
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if (!gst_d3d11_result (hr, device)) {
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GST_ERROR_OBJECT (self, "Failed to create texture");
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return nullptr;
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}
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hr = device_handle->CreateShaderResourceView (texture.Get (), &srv_desc,
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&srv);
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if (!gst_d3d11_result (hr, device) || !srv) {
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GST_ERROR_OBJECT (self, "Failed to create shader resource view");
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return nullptr;
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srv_desc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
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srv_desc.Texture2D.MipLevels = 1;
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hr = device_handle->CreateShaderResourceView (texture.Get (), &srv_desc,
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&srv);
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if (!gst_d3d11_result (hr, device) || !srv) {
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GST_ERROR_OBJECT (self, "Failed to create shader resource view");
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return nullptr;
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}
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}
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buffer_desc.Usage = D3D11_USAGE_DYNAMIC;
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@ -346,6 +366,8 @@ gst_d3d11_composition_overlay_new (GstD3D11OverlayCompositor * self,
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overlay->srv = srv;
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overlay->vertex_buffer = vertex_buffer;
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overlay->premul_alpha = premul_alpha;
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if (is_d3d11)
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overlay->d3d11_buffer = gst_buffer_ref (buf);
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return overlay;
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}
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@ -680,6 +702,13 @@ gst_d3d11_overlay_compositor_draw_unlocked (GstD3D11OverlayCompositor *
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for (auto overlay : priv->overlays) {
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ID3D11ShaderResourceView *srv[] = { overlay->srv.Get () };
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ID3D11Buffer *vertex_buf[] = { overlay->vertex_buffer.Get () };
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GstMapInfo info;
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GstMemory *mem = nullptr;
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if (overlay->d3d11_buffer) {
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mem = gst_buffer_peek_memory (overlay->d3d11_buffer, 0);
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gst_memory_map (mem, &info, (GstMapFlags) (GST_MAP_D3D11 | GST_MAP_READ));
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}
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if (overlay->premul_alpha)
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context->PSSetShader (priv->premul_ps.Get (), nullptr, 0);
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@ -690,6 +719,9 @@ gst_d3d11_overlay_compositor_draw_unlocked (GstD3D11OverlayCompositor *
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context->IASetVertexBuffers (0, 1, vertex_buf, &strides, &offsets);
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context->DrawIndexed (6, 0, 0);
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if (mem)
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gst_memory_unmap (mem, &info);
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}
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/* *INDENT-ON* */
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