2018-07-18 09:40:26 +00:00
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// Copyright 2017 The Dawn Authors
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2017-06-16 18:26:26 +00:00
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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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2018-07-24 11:53:51 +00:00
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#include "dawn_native/d3d12/SamplerD3D12.h"
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2017-06-16 18:26:26 +00:00
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2018-07-24 11:53:51 +00:00
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#include "dawn_native/d3d12/DeviceD3D12.h"
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2019-01-04 04:56:08 +00:00
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#include "dawn_native/d3d12/UtilsD3D12.h"
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2017-06-16 18:26:26 +00:00
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2018-07-24 14:45:45 +00:00
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namespace dawn_native { namespace d3d12 {
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2017-06-16 18:26:26 +00:00
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2018-03-29 18:02:52 +00:00
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namespace {
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2018-07-18 09:38:11 +00:00
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D3D12_TEXTURE_ADDRESS_MODE AddressMode(dawn::AddressMode mode) {
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2018-03-29 18:02:52 +00:00
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switch (mode) {
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2018-07-18 09:38:11 +00:00
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case dawn::AddressMode::Repeat:
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2018-03-29 18:02:52 +00:00
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return D3D12_TEXTURE_ADDRESS_MODE_WRAP;
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2018-07-18 09:38:11 +00:00
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case dawn::AddressMode::MirroredRepeat:
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2018-03-29 18:02:52 +00:00
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return D3D12_TEXTURE_ADDRESS_MODE_MIRROR;
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2018-07-18 09:38:11 +00:00
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case dawn::AddressMode::ClampToEdge:
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2018-03-29 18:02:52 +00:00
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return D3D12_TEXTURE_ADDRESS_MODE_CLAMP;
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default:
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UNREACHABLE();
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}
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}
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} // namespace
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2018-07-25 15:03:23 +00:00
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Sampler::Sampler(Device* device, const SamplerDescriptor* descriptor)
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2018-05-17 21:09:07 +00:00
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: SamplerBase(device, descriptor) {
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// https://msdn.microsoft.com/en-us/library/windows/desktop/dn770367(v=vs.85).aspx
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2017-11-24 19:04:22 +00:00
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// hex value, decimal value, min linear, mag linear, mip linear
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// D3D12_FILTER_MIN_MAG_MIP_POINT = 0 0 0 0 0
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// D3D12_FILTER_MIN_MAG_POINT_MIP_LINEAR = 0x1 1 0 0 1
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// D3D12_FILTER_MIN_POINT_MAG_LINEAR_MIP_POINT = 0x4 4 0 1 0
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// D3D12_FILTER_MIN_POINT_MAG_MIP_LINEAR = 0x5 5 0 1 1
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// D3D12_FILTER_MIN_LINEAR_MAG_MIP_POINT = 0x10 16 1 0 0
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// D3D12_FILTER_MIN_LINEAR_MAG_POINT_MIP_LINEAR = 0x11 17 1 0 1
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// D3D12_FILTER_MIN_MAG_LINEAR_MIP_POINT = 0x14 20 1 1 0
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// D3D12_FILTER_MIN_MAG_MIP_LINEAR = 0x15 21 1 1 1
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// if mip mode is linear, add 1
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// if mag mode is linear, add 4
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// if min mode is linear, add 16
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uint8_t mode = 0;
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2018-05-17 21:09:07 +00:00
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switch (descriptor->minFilter) {
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2018-07-18 09:38:11 +00:00
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case dawn::FilterMode::Nearest:
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break;
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2018-07-18 09:38:11 +00:00
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case dawn::FilterMode::Linear:
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mode += 16;
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break;
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}
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2018-05-17 21:09:07 +00:00
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switch (descriptor->magFilter) {
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2018-07-18 09:38:11 +00:00
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case dawn::FilterMode::Nearest:
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break;
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2018-07-18 09:38:11 +00:00
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case dawn::FilterMode::Linear:
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mode += 4;
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break;
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}
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2018-05-17 21:09:07 +00:00
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switch (descriptor->mipmapFilter) {
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2018-07-18 09:38:11 +00:00
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case dawn::FilterMode::Nearest:
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break;
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2018-07-18 09:38:11 +00:00
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case dawn::FilterMode::Linear:
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2017-06-16 18:26:26 +00:00
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mode += 1;
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break;
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}
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2017-11-23 19:14:03 +00:00
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mSamplerDesc.Filter = static_cast<D3D12_FILTER>(mode);
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2018-05-17 21:09:07 +00:00
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mSamplerDesc.AddressU = AddressMode(descriptor->addressModeU);
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mSamplerDesc.AddressV = AddressMode(descriptor->addressModeV);
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mSamplerDesc.AddressW = AddressMode(descriptor->addressModeW);
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2017-11-23 19:14:03 +00:00
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mSamplerDesc.MipLODBias = 0.f;
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mSamplerDesc.MaxAnisotropy = 1;
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2019-01-04 04:56:08 +00:00
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mSamplerDesc.ComparisonFunc = ToD3D12ComparisonFunc(descriptor->compareFunction);
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mSamplerDesc.MinLOD = descriptor->lodMinClamp;
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mSamplerDesc.MaxLOD = descriptor->lodMaxClamp;
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2017-06-16 18:26:26 +00:00
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}
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const D3D12_SAMPLER_DESC& Sampler::GetSamplerDescriptor() const {
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2017-11-23 19:14:03 +00:00
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return mSamplerDesc;
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2017-06-16 18:26:26 +00:00
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}
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2018-07-24 14:45:45 +00:00
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}} // namespace dawn_native::d3d12
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