mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
synced 2024-11-25 13:00:07 +00:00
248 lines
8.9 KiB
C++
248 lines
8.9 KiB
C++
//
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// Copyright 2013 Pixar
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//
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// Licensed under the Apache License, Version 2.0 (the "Apache License")
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// with the following modification; you may not use this file except in
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// compliance with the Apache License and the following modification to it:
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// Section 6. Trademarks. is deleted and replaced with:
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//
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// 6. Trademarks. This License does not grant permission to use the trade
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// names, trademarks, service marks, or product names of the Licensor
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// and its affiliates, except as required to comply with Section 4(c) of
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// the License and to reproduce the content of the NOTICE file.
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//
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// You may obtain a copy of the Apache License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the Apache License with the above modification is
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// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the Apache License for the specific
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// language governing permissions and limitations under the Apache License.
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//
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#include "../far/dispatcher.h"
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#include "../far/loopSubdivisionTables.h"
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#include "../osd/d3d11DrawContext.h"
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#include <D3D11.h>
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#include <string.h>
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namespace OpenSubdiv {
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namespace OPENSUBDIV_VERSION {
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OsdD3D11DrawContext::OsdD3D11DrawContext() :
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patchIndexBuffer(NULL),
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ptexCoordinateBuffer(NULL),
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ptexCoordinateBufferSRV(NULL),
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fvarDataBuffer(NULL),
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fvarDataBufferSRV(NULL),
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vertexBufferSRV(NULL),
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vertexValenceBuffer(NULL),
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vertexValenceBufferSRV(NULL),
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quadOffsetBuffer(NULL),
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quadOffsetBufferSRV(NULL)
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{
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}
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OsdD3D11DrawContext::~OsdD3D11DrawContext()
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{
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if (patchIndexBuffer) patchIndexBuffer->Release();
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if (ptexCoordinateBuffer) ptexCoordinateBuffer->Release();
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if (ptexCoordinateBufferSRV) ptexCoordinateBufferSRV->Release();
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if (fvarDataBuffer) fvarDataBuffer->Release();
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if (fvarDataBufferSRV) fvarDataBufferSRV->Release();
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if (vertexBufferSRV) vertexBufferSRV->Release();
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if (vertexValenceBuffer) vertexValenceBuffer->Release();
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if (vertexValenceBufferSRV) vertexValenceBufferSRV->Release();
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if (quadOffsetBuffer) quadOffsetBuffer->Release();
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if (quadOffsetBufferSRV) quadOffsetBufferSRV->Release();
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};
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OsdD3D11DrawContext *
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OsdD3D11DrawContext::Create(FarPatchTables const *patchTables,
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ID3D11DeviceContext *pd3d11DeviceContext,
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bool requireFVarData)
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{
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OsdD3D11DrawContext * result = new OsdD3D11DrawContext();
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if (result->create(patchTables, pd3d11DeviceContext, requireFVarData))
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return result;
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delete result;
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return NULL;
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}
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bool
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OsdD3D11DrawContext::create(FarPatchTables const *patchTables,
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ID3D11DeviceContext *pd3d11DeviceContext,
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bool requireFVarData)
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{
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// adaptive patches
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_isAdaptive = true;
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ID3D11Device *pd3d11Device = NULL;
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pd3d11DeviceContext->GetDevice(&pd3d11Device);
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assert(pd3d11Device);
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ConvertPatchArrays(patchTables->GetPatchArrayVector(), patchArrays, patchTables->GetMaxValence(), 0);
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FarPatchTables::PTable const & ptables = patchTables->GetPatchTable();
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FarPatchTables::PatchParamTable const & ptexCoordTables = patchTables->GetPatchParamTable();
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int totalPatchIndices = (int)ptables.size();
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int totalPatches = (int)ptexCoordTables.size();
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// Allocate and fill index buffer.
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D3D11_BUFFER_DESC bd;
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bd.ByteWidth = totalPatchIndices * sizeof(int);
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bd.Usage = D3D11_USAGE_DYNAMIC;
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bd.BindFlags = D3D11_BIND_INDEX_BUFFER;
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bd.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
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bd.MiscFlags = 0;
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bd.StructureByteStride = sizeof(int);
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HRESULT hr = pd3d11Device->CreateBuffer(&bd, NULL, &patchIndexBuffer);
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if (FAILED(hr)) {
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return false;
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}
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D3D11_MAPPED_SUBRESOURCE mappedResource;
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hr = pd3d11DeviceContext->Map(patchIndexBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mappedResource);
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if (FAILED(hr)) {
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return false;
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}
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unsigned int * indexBuffer = (unsigned int *) mappedResource.pData;
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memcpy(indexBuffer, &ptables[0], totalPatchIndices * sizeof(unsigned int));
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pd3d11DeviceContext->Unmap(patchIndexBuffer, 0);
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// create patch param buffer
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bd.ByteWidth = totalPatches * sizeof(FarPatchParam);
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bd.Usage = D3D11_USAGE_DYNAMIC;
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bd.BindFlags = D3D11_BIND_SHADER_RESOURCE;
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bd.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
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bd.MiscFlags = 0;
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bd.StructureByteStride = sizeof(unsigned int);
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hr = pd3d11Device->CreateBuffer(&bd, NULL, &ptexCoordinateBuffer);
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if (FAILED(hr)) {
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return false;
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}
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D3D11_SHADER_RESOURCE_VIEW_DESC srvd;
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ZeroMemory(&srvd, sizeof(srvd));
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srvd.Format = DXGI_FORMAT_R32G32_UINT;
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srvd.ViewDimension = D3D11_SRV_DIMENSION_BUFFER;
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srvd.Buffer.FirstElement = 0;
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srvd.Buffer.NumElements = totalPatches;
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hr = pd3d11Device->CreateShaderResourceView(ptexCoordinateBuffer, &srvd, &ptexCoordinateBufferSRV);
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if (FAILED(hr)) {
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return false;
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}
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hr = pd3d11DeviceContext->Map(ptexCoordinateBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mappedResource);
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if (FAILED(hr)) {
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return false;
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}
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unsigned int * ptexBuffer = (unsigned int *) mappedResource.pData;
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memcpy(ptexBuffer, &ptexCoordTables[0], totalPatches * sizeof(FarPatchParam));
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pd3d11DeviceContext->Unmap(ptexCoordinateBuffer, 0);
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// create vertex valence buffer and vertex texture
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FarPatchTables::VertexValenceTable const &
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valenceTable = patchTables->GetVertexValenceTable();
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if (not valenceTable.empty()) {
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D3D11_BUFFER_DESC bd;
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bd.ByteWidth = UINT(valenceTable.size() * sizeof(unsigned int));
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bd.Usage = D3D11_USAGE_DEFAULT;
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bd.BindFlags = D3D11_BIND_SHADER_RESOURCE;
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bd.CPUAccessFlags = 0;
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bd.MiscFlags = 0;
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bd.StructureByteStride = sizeof(unsigned int);
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D3D11_SUBRESOURCE_DATA initData;
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initData.pSysMem = &valenceTable[0];
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HRESULT hr = pd3d11Device->CreateBuffer(&bd, &initData, &vertexValenceBuffer);
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if (FAILED(hr)) {
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return false;
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}
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D3D11_SHADER_RESOURCE_VIEW_DESC srvd;
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ZeroMemory(&srvd, sizeof(srvd));
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srvd.Format = DXGI_FORMAT_R32_SINT;
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srvd.ViewDimension = D3D11_SRV_DIMENSION_BUFFER;
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srvd.Buffer.FirstElement = 0;
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srvd.Buffer.NumElements = UINT(valenceTable.size());
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hr = pd3d11Device->CreateShaderResourceView(vertexValenceBuffer, &srvd, &vertexValenceBufferSRV);
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if (FAILED(hr)) {
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return false;
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}
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}
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FarPatchTables::QuadOffsetTable const &
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quadOffsetTable = patchTables->GetQuadOffsetTable();
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if (not quadOffsetTable.empty()) {
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D3D11_BUFFER_DESC bd;
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bd.ByteWidth = UINT(quadOffsetTable.size() * sizeof(unsigned int));
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bd.Usage = D3D11_USAGE_DEFAULT;
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bd.BindFlags = D3D11_BIND_SHADER_RESOURCE;
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bd.CPUAccessFlags = 0;
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bd.MiscFlags = 0;
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bd.StructureByteStride = sizeof(unsigned int);
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D3D11_SUBRESOURCE_DATA initData;
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initData.pSysMem = &quadOffsetTable[0];
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HRESULT hr = pd3d11Device->CreateBuffer(&bd, &initData, &quadOffsetBuffer);
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if (FAILED(hr)) {
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return false;
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}
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D3D11_SHADER_RESOURCE_VIEW_DESC srvd;
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ZeroMemory(&srvd, sizeof(srvd));
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srvd.Format = DXGI_FORMAT_R32_SINT;
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srvd.ViewDimension = D3D11_SRV_DIMENSION_BUFFER;
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srvd.Buffer.FirstElement = 0;
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srvd.Buffer.NumElements = UINT(quadOffsetTable.size());
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hr = pd3d11Device->CreateShaderResourceView(quadOffsetBuffer, &srvd, &quadOffsetBufferSRV);
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if (FAILED(hr)) {
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return false;
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}
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}
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return true;
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}
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void
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OsdD3D11DrawContext::updateVertexTexture(ID3D11Buffer *vbo,
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ID3D11DeviceContext *pd3d11DeviceContext,
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int numVertices,
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int numVertexElements)
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{
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ID3D11Device *pd3d11Device = NULL;
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pd3d11DeviceContext->GetDevice(&pd3d11Device);
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assert(pd3d11Device);
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D3D11_SHADER_RESOURCE_VIEW_DESC srvd;
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ZeroMemory(&srvd, sizeof(srvd));
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srvd.Format = DXGI_FORMAT_R32_FLOAT;
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srvd.ViewDimension = D3D11_SRV_DIMENSION_BUFFER;
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srvd.Buffer.FirstElement = 0;
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srvd.Buffer.NumElements = numVertices * numVertexElements;
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HRESULT hr = pd3d11Device->CreateShaderResourceView(vbo, &srvd, &vertexBufferSRV);
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if (FAILED(hr)) {
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return;
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}
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// XXX: consider moving this proc to base class
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// updating num elements in descriptor with new vbo specs
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for (int i = 0; i < (int)patchArrays.size(); ++i) {
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PatchArray &parray = patchArrays[i];
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PatchDescriptor desc = parray.GetDescriptor();
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desc.SetNumElements(numVertexElements);
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parray.SetDescriptor(desc);
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}
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}
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} // end namespace OPENSUBDIV_VERSION
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} // end namespace OpenSubdiv
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