mirror of
https://github.com/encounter/dawn-cmake.git
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99 lines
3.7 KiB
C++
99 lines
3.7 KiB
C++
// Copyright 2018 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/vulkan/SamplerVk.h"
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#include "backend/vulkan/DeviceVk.h"
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#include "backend/vulkan/FencedDeleter.h"
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namespace backend { namespace vulkan {
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namespace {
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VkSamplerAddressMode VulkanSamplerAddressMode(nxt::AddressMode mode) {
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switch (mode) {
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case nxt::AddressMode::Repeat:
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return VK_SAMPLER_ADDRESS_MODE_REPEAT;
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case nxt::AddressMode::MirroredRepeat:
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return VK_SAMPLER_ADDRESS_MODE_MIRRORED_REPEAT;
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case nxt::AddressMode::ClampToEdge:
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return VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
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default:
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UNREACHABLE();
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}
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}
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VkFilter VulkanSamplerFilter(nxt::FilterMode filter) {
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switch (filter) {
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case nxt::FilterMode::Linear:
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return VK_FILTER_LINEAR;
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case nxt::FilterMode::Nearest:
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return VK_FILTER_NEAREST;
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default:
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UNREACHABLE();
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}
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}
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VkSamplerMipmapMode VulkanMipMapMode(nxt::FilterMode filter) {
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switch (filter) {
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case nxt::FilterMode::Linear:
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return VK_SAMPLER_MIPMAP_MODE_LINEAR;
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case nxt::FilterMode::Nearest:
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return VK_SAMPLER_MIPMAP_MODE_NEAREST;
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default:
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UNREACHABLE();
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}
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}
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} // anonymous namespace
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Sampler::Sampler(Device* device, const nxt::SamplerDescriptor* descriptor)
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: SamplerBase(device, descriptor), mDevice(device) {
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VkSamplerCreateInfo createInfo;
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createInfo.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO;
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createInfo.pNext = nullptr;
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createInfo.flags = 0;
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createInfo.magFilter = VulkanSamplerFilter(descriptor->magFilter);
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createInfo.minFilter = VulkanSamplerFilter(descriptor->minFilter);
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createInfo.mipmapMode = VulkanMipMapMode(descriptor->mipmapFilter);
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createInfo.addressModeU = VulkanSamplerAddressMode(descriptor->addressModeU);
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createInfo.addressModeV = VulkanSamplerAddressMode(descriptor->addressModeV);
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createInfo.addressModeW = VulkanSamplerAddressMode(descriptor->addressModeW);
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createInfo.mipLodBias = 0.0f;
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createInfo.anisotropyEnable = VK_FALSE;
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createInfo.maxAnisotropy = 1.0f;
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createInfo.compareEnable = VK_FALSE;
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createInfo.compareOp = VK_COMPARE_OP_NEVER;
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createInfo.minLod = 0.0f;
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createInfo.maxLod = 1000.0f;
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createInfo.borderColor = VK_BORDER_COLOR_FLOAT_TRANSPARENT_BLACK;
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createInfo.unnormalizedCoordinates = VK_FALSE;
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if (device->fn.CreateSampler(device->GetVkDevice(), &createInfo, nullptr, &mHandle) !=
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VK_SUCCESS) {
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ASSERT(false);
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}
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}
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Sampler::~Sampler() {
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if (mHandle != VK_NULL_HANDLE) {
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mDevice->GetFencedDeleter()->DeleteWhenUnused(mHandle);
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mHandle = VK_NULL_HANDLE;
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}
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}
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VkSampler Sampler::GetHandle() const {
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return mHandle;
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}
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}} // namespace backend::vulkan
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