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d3d12mipgen: Serialize root signature only once

Browse source 
... and reuse serialized blob

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/8394>
This commit is contained in:
Seungha Yang 2025-02-02 00:55:07 +09:00
parent 4b0d555056
commit 1dc09d67fe
1 changed files with 72 additions and 44 deletions
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116
subprojects/gst-plugins-bad/gst-libs/gst/d3d12/gstd3d12mipgen.cpp
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@ -131,67 +131,95 @@ gst_d3d12_mip_gen_finalize (GObject * object)
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static gboolean
get_mipgen_rs_blob (GstD3D12Device * device, ID3DBlob ** blob)
{
static ID3DBlob *rs_blob_ = nullptr;
GST_D3D12_CALL_ONCE_BEGIN {
D3D12_VERSIONED_ROOT_SIGNATURE_DESC desc = { };
CD3DX12_ROOT_PARAMETER root_params[3];
CD3DX12_DESCRIPTOR_RANGE range_srv;
CD3DX12_DESCRIPTOR_RANGE range_uav;
D3D12_STATIC_SAMPLER_DESC sampler_desc = { };
sampler_desc.Filter = D3D12_FILTER_MIN_MAG_LINEAR_MIP_POINT;
sampler_desc.AddressU = D3D12_TEXTURE_ADDRESS_MODE_CLAMP;
sampler_desc.AddressV = D3D12_TEXTURE_ADDRESS_MODE_CLAMP;
sampler_desc.AddressW = D3D12_TEXTURE_ADDRESS_MODE_CLAMP;
sampler_desc.MipLODBias = 0;
sampler_desc.MaxAnisotropy = 1;
sampler_desc.ComparisonFunc = D3D12_COMPARISON_FUNC_ALWAYS;
sampler_desc.BorderColor = D3D12_STATIC_BORDER_COLOR_OPAQUE_BLACK;
sampler_desc.MinLOD = 0;
sampler_desc.MaxLOD = D3D12_FLOAT32_MAX;
sampler_desc.ShaderRegister = 0;
sampler_desc.RegisterSpace = 0;
sampler_desc.ShaderVisibility = D3D12_SHADER_VISIBILITY_ALL;
root_params[0].InitAsConstants (6, 0, 0);
range_srv.Init (D3D12_DESCRIPTOR_RANGE_TYPE_SRV, 1, 0);
root_params[1].InitAsDescriptorTable (1, &range_srv);
range_uav.Init (D3D12_DESCRIPTOR_RANGE_TYPE_UAV, 4, 0);
root_params[2].InitAsDescriptorTable (1, &range_uav);
CD3DX12_VERSIONED_ROOT_SIGNATURE_DESC::Init_1_0 (desc, 3, root_params,
1, &sampler_desc,
D3D12_ROOT_SIGNATURE_FLAG_DENY_VERTEX_SHADER_ROOT_ACCESS |
D3D12_ROOT_SIGNATURE_FLAG_DENY_HULL_SHADER_ROOT_ACCESS |
D3D12_ROOT_SIGNATURE_FLAG_DENY_DOMAIN_SHADER_ROOT_ACCESS |
D3D12_ROOT_SIGNATURE_FLAG_DENY_GEOMETRY_SHADER_ROOT_ACCESS |
D3D12_ROOT_SIGNATURE_FLAG_DENY_AMPLIFICATION_SHADER_ROOT_ACCESS |
D3D12_ROOT_SIGNATURE_FLAG_DENY_MESH_SHADER_ROOT_ACCESS);
ComPtr < ID3DBlob > rs_blob;
ComPtr < ID3DBlob > error_blob;
auto hr = D3DX12SerializeVersionedRootSignature (&desc,
D3D_ROOT_SIGNATURE_VERSION_1_0, &rs_blob, &error_blob);
if (!gst_d3d12_result (hr, device)) {
const gchar *error_msg = nullptr;
if (error_blob)
error_msg = (const gchar *) error_blob->GetBufferPointer ();
GST_ERROR_OBJECT (device,
"Couldn't serialize rs, hr: 0x%x, error detail: %s",
(guint) hr, GST_STR_NULL (error_msg));
} else {
rs_blob_ = rs_blob.Detach ();
}
}
GST_D3D12_CALL_ONCE_END;
if (rs_blob_) {
*blob = rs_blob_;
rs_blob_->AddRef ();
return TRUE;
}
return FALSE;
}
GstD3D12MipGen *
gst_d3d12_mip_gen_new (GstD3D12Device * device, GstD3DPluginCS cs_type)
{
g_return_val_if_fail (GST_IS_D3D12_DEVICE (device), nullptr);
D3D12_VERSIONED_ROOT_SIGNATURE_DESC rs_desc = { };
CD3DX12_ROOT_PARAMETER root_params[3];
CD3DX12_DESCRIPTOR_RANGE range_srv;
CD3DX12_DESCRIPTOR_RANGE range_uav;
D3D12_STATIC_SAMPLER_DESC sampler_desc = { };
auto self = (GstD3D12MipGen *) g_object_new (GST_TYPE_D3D12_MIP_GEN, nullptr);
gst_object_ref_sink (self);
auto priv = self->priv;
priv->device = (GstD3D12Device *) gst_object_ref (device);
sampler_desc.Filter = D3D12_FILTER_MIN_MAG_LINEAR_MIP_POINT;
sampler_desc.AddressU = D3D12_TEXTURE_ADDRESS_MODE_CLAMP;
sampler_desc.AddressV = D3D12_TEXTURE_ADDRESS_MODE_CLAMP;
sampler_desc.AddressW = D3D12_TEXTURE_ADDRESS_MODE_CLAMP;
sampler_desc.MipLODBias = 0;
sampler_desc.MaxAnisotropy = 1;
sampler_desc.ComparisonFunc = D3D12_COMPARISON_FUNC_ALWAYS;
sampler_desc.BorderColor = D3D12_STATIC_BORDER_COLOR_OPAQUE_BLACK;
sampler_desc.MinLOD = 0;
sampler_desc.MaxLOD = D3D12_FLOAT32_MAX;
sampler_desc.ShaderRegister = 0;
sampler_desc.RegisterSpace = 0;
sampler_desc.ShaderVisibility = D3D12_SHADER_VISIBILITY_ALL;
root_params[0].InitAsConstants (6, 0, 0);
range_srv.Init (D3D12_DESCRIPTOR_RANGE_TYPE_SRV, 1, 0);
root_params[1].InitAsDescriptorTable (1, &range_srv);
range_uav.Init (D3D12_DESCRIPTOR_RANGE_TYPE_UAV, 4, 0);
root_params[2].InitAsDescriptorTable (1, &range_uav);
CD3DX12_VERSIONED_ROOT_SIGNATURE_DESC::Init_1_0 (rs_desc, 3, root_params,
1, &sampler_desc, D3D12_ROOT_SIGNATURE_FLAG_NONE);
ComPtr < ID3DBlob > rs_blob;
ComPtr < ID3DBlob > error_blob;
auto hr = D3DX12SerializeVersionedRootSignature (&rs_desc,
D3D_ROOT_SIGNATURE_VERSION_1, &rs_blob, &error_blob);
if (!gst_d3d12_result (hr, device)) {
const gchar *error_msg = nullptr;
if (error_blob)
error_msg = (const gchar *) error_blob->GetBufferPointer ();
GST_ERROR_OBJECT (self,
"Couldn't serialize root signature, hr: 0x%x, error detail: %s",
(guint) hr, GST_STR_NULL (error_msg));
if (!get_mipgen_rs_blob (device, &rs_blob)) {
gst_object_unref (self);
return nullptr;
}
auto device_handle = gst_d3d12_device_get_device_handle (device);
hr = device_handle->CreateRootSignature (0, rs_blob->GetBufferPointer (),
auto hr = device_handle->CreateRootSignature (0, rs_blob->GetBufferPointer (),
rs_blob->GetBufferSize (), IID_PPV_ARGS (&priv->rs));
if (!gst_d3d12_result (hr, device)) {
GST_ERROR_OBJECT (self, "Couldn't create root signature");