mirror of
https://github.com/encounter/dawn-cmake.git
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fffe6dfa16
This directory used to contain both the state tracking code for the backends, and the common utilities that could be used both by the backends and the rest of the code. Things are now: - src/common is utility code for the whole repo - src/backend contains libNXT's code - src/utils is utility code that we don't want in libNXT This commit also changes all includes to use global paths from src/ bacause it had to touch a bunch of #include statements anyway.
85 lines
3.2 KiB
C++
85 lines
3.2 KiB
C++
// Copyright 2017 The NXT Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the 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 License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "backend/d3d12/InputStateD3D12.h"
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namespace backend {
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namespace d3d12 {
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static DXGI_FORMAT VertexFormatType(nxt::VertexFormat format) {
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switch (format) {
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case nxt::VertexFormat::FloatR32G32B32A32:
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return DXGI_FORMAT_R32G32B32A32_FLOAT;
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case nxt::VertexFormat::FloatR32G32B32:
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return DXGI_FORMAT_R32G32B32_FLOAT;
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case nxt::VertexFormat::FloatR32G32:
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return DXGI_FORMAT_R32G32_FLOAT;
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case nxt::VertexFormat::FloatR32:
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return DXGI_FORMAT_R32_FLOAT;
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}
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}
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static D3D12_INPUT_CLASSIFICATION InputStepModeFunction(nxt::InputStepMode mode) {
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switch (mode) {
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case nxt::InputStepMode::Vertex:
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return D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA;
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case nxt::InputStepMode::Instance:
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return D3D12_INPUT_CLASSIFICATION_PER_INSTANCE_DATA;
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}
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}
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InputState::InputState(Device* device, InputStateBuilder* builder)
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: InputStateBase(builder), device(device) {
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const auto& attributesSetMask = GetAttributesSetMask();
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size_t count = 0;
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for (size_t i = 0; i < attributesSetMask.size(); ++i) {
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if (!attributesSetMask[i]) {
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continue;
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}
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D3D12_INPUT_ELEMENT_DESC& inputElementDescriptor = inputElementDescriptors[count++];
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const AttributeInfo& attribute = GetAttribute(i);
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// If the HLSL semantic is TEXCOORDN the SemanticName should be "TEXCOORD" and the SemanticIndex N
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inputElementDescriptor.SemanticName = "TEXCOORD";
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inputElementDescriptor.SemanticIndex = i;
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inputElementDescriptor.Format = VertexFormatType(attribute.format);
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inputElementDescriptor.InputSlot = attribute.bindingSlot;
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const InputInfo& input = GetInput(attribute.bindingSlot);
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inputElementDescriptor.AlignedByteOffset = attribute.offset;
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inputElementDescriptor.InputSlotClass = InputStepModeFunction(input.stepMode);
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if (inputElementDescriptor.InputSlotClass == D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA) {
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inputElementDescriptor.InstanceDataStepRate = 0;
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} else {
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inputElementDescriptor.InstanceDataStepRate = 1;
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}
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}
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inputLayoutDescriptor.pInputElementDescs = inputElementDescriptors;
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inputLayoutDescriptor.NumElements = count;
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}
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const D3D12_INPUT_LAYOUT_DESC& InputState::GetD3D12InputLayoutDescriptor() const {
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return inputLayoutDescriptor;
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}
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}
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}
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