1 // Copyright 2018 The Dawn Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #include "dawn_native/vulkan/SamplerVk.h" 16 17 #include "dawn_native/vulkan/DeviceVk.h" 18 #include "dawn_native/vulkan/FencedDeleter.h" 19 #include "dawn_native/vulkan/UtilsVulkan.h" 20 #include "dawn_native/vulkan/VulkanError.h" 21 22 namespace dawn_native { namespace vulkan { 23 24 namespace { VulkanSamplerAddressMode(wgpu::AddressMode mode)25 VkSamplerAddressMode VulkanSamplerAddressMode(wgpu::AddressMode mode) { 26 switch (mode) { 27 case wgpu::AddressMode::Repeat: 28 return VK_SAMPLER_ADDRESS_MODE_REPEAT; 29 case wgpu::AddressMode::MirrorRepeat: 30 return VK_SAMPLER_ADDRESS_MODE_MIRRORED_REPEAT; 31 case wgpu::AddressMode::ClampToEdge: 32 return VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE; 33 } 34 } 35 VulkanSamplerFilter(wgpu::FilterMode filter)36 VkFilter VulkanSamplerFilter(wgpu::FilterMode filter) { 37 switch (filter) { 38 case wgpu::FilterMode::Linear: 39 return VK_FILTER_LINEAR; 40 case wgpu::FilterMode::Nearest: 41 return VK_FILTER_NEAREST; 42 } 43 } 44 VulkanMipMapMode(wgpu::FilterMode filter)45 VkSamplerMipmapMode VulkanMipMapMode(wgpu::FilterMode filter) { 46 switch (filter) { 47 case wgpu::FilterMode::Linear: 48 return VK_SAMPLER_MIPMAP_MODE_LINEAR; 49 case wgpu::FilterMode::Nearest: 50 return VK_SAMPLER_MIPMAP_MODE_NEAREST; 51 } 52 } 53 } // anonymous namespace 54 55 // static Create(Device * device,const SamplerDescriptor * descriptor)56 ResultOrError<Sampler*> Sampler::Create(Device* device, const SamplerDescriptor* descriptor) { 57 Ref<Sampler> sampler = AcquireRef(new Sampler(device, descriptor)); 58 DAWN_TRY(sampler->Initialize(descriptor)); 59 return sampler.Detach(); 60 } 61 Initialize(const SamplerDescriptor * descriptor)62 MaybeError Sampler::Initialize(const SamplerDescriptor* descriptor) { 63 VkSamplerCreateInfo createInfo = {}; 64 createInfo.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO; 65 createInfo.pNext = nullptr; 66 createInfo.flags = 0; 67 createInfo.magFilter = VulkanSamplerFilter(descriptor->magFilter); 68 createInfo.minFilter = VulkanSamplerFilter(descriptor->minFilter); 69 createInfo.mipmapMode = VulkanMipMapMode(descriptor->mipmapFilter); 70 createInfo.addressModeU = VulkanSamplerAddressMode(descriptor->addressModeU); 71 createInfo.addressModeV = VulkanSamplerAddressMode(descriptor->addressModeV); 72 createInfo.addressModeW = VulkanSamplerAddressMode(descriptor->addressModeW); 73 createInfo.mipLodBias = 0.0f; 74 createInfo.anisotropyEnable = VK_FALSE; 75 createInfo.maxAnisotropy = 1.0f; 76 if (descriptor->compare != wgpu::CompareFunction::Undefined) { 77 createInfo.compareOp = ToVulkanCompareOp(descriptor->compare); 78 createInfo.compareEnable = VK_TRUE; 79 } else { 80 // Still set the compareOp so it's not garbage. 81 createInfo.compareOp = VK_COMPARE_OP_NEVER; 82 createInfo.compareEnable = VK_FALSE; 83 } 84 createInfo.minLod = descriptor->lodMinClamp; 85 createInfo.maxLod = descriptor->lodMaxClamp; 86 createInfo.unnormalizedCoordinates = VK_FALSE; 87 88 Device* device = ToBackend(GetDevice()); 89 return CheckVkSuccess( 90 device->fn.CreateSampler(device->GetVkDevice(), &createInfo, nullptr, &*mHandle), 91 "CreateSampler"); 92 } 93 ~Sampler()94 Sampler::~Sampler() { 95 if (mHandle != VK_NULL_HANDLE) { 96 ToBackend(GetDevice())->GetFencedDeleter()->DeleteWhenUnused(mHandle); 97 mHandle = VK_NULL_HANDLE; 98 } 99 } 100 GetHandle() const101 VkSampler Sampler::GetHandle() const { 102 return mHandle; 103 } 104 105 }} // namespace dawn_native::vulkan 106