1 /*
2 * Copyright 2016 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8 #include "src/gpu/vk/GrVkSampler.h"
9
10 #include "src/gpu/vk/GrVkGpu.h"
11 #include "src/gpu/vk/GrVkSamplerYcbcrConversion.h"
12
wrap_mode_to_vk_sampler_address(GrSamplerState::WrapMode wrapMode)13 static VkSamplerAddressMode wrap_mode_to_vk_sampler_address(GrSamplerState::WrapMode wrapMode) {
14 switch (wrapMode) {
15 case GrSamplerState::WrapMode::kClamp:
16 return VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
17 case GrSamplerState::WrapMode::kRepeat:
18 return VK_SAMPLER_ADDRESS_MODE_REPEAT;
19 case GrSamplerState::WrapMode::kMirrorRepeat:
20 return VK_SAMPLER_ADDRESS_MODE_MIRRORED_REPEAT;
21 case GrSamplerState::WrapMode::kClampToBorder:
22 return VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_BORDER;
23 }
24 SkUNREACHABLE;
25 }
26
mipmap_mode_to_vk_sampler_mipmap_mode(GrSamplerState::MipmapMode mm)27 static VkSamplerMipmapMode mipmap_mode_to_vk_sampler_mipmap_mode(GrSamplerState::MipmapMode mm) {
28 switch (mm) {
29 // There is no disable mode. We use max level to disable mip mapping.
30 // It may make more sense to use NEAREST for kNone but Chrome pixel tests seam dependent
31 // on subtle rendering differences introduced by switching this.
32 case GrSamplerState::MipmapMode::kNone: return VK_SAMPLER_MIPMAP_MODE_LINEAR;
33 case GrSamplerState::MipmapMode::kNearest: return VK_SAMPLER_MIPMAP_MODE_NEAREST;
34 case GrSamplerState::MipmapMode::kLinear: return VK_SAMPLER_MIPMAP_MODE_LINEAR;
35 }
36 SkUNREACHABLE;
37 }
38
Create(GrVkGpu * gpu,GrSamplerState samplerState,const GrVkYcbcrConversionInfo & ycbcrInfo)39 GrVkSampler* GrVkSampler::Create(GrVkGpu* gpu, GrSamplerState samplerState,
40 const GrVkYcbcrConversionInfo& ycbcrInfo) {
41 static VkFilter vkMinFilterModes[] = {
42 VK_FILTER_NEAREST,
43 VK_FILTER_LINEAR,
44 VK_FILTER_LINEAR
45 };
46 static VkFilter vkMagFilterModes[] = {
47 VK_FILTER_NEAREST,
48 VK_FILTER_LINEAR,
49 VK_FILTER_LINEAR
50 };
51
52 VkSamplerCreateInfo createInfo;
53 memset(&createInfo, 0, sizeof(VkSamplerCreateInfo));
54 createInfo.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO;
55 createInfo.pNext = nullptr;
56 createInfo.flags = 0;
57 createInfo.magFilter = vkMagFilterModes[static_cast<int>(samplerState.filter())];
58 createInfo.minFilter = vkMinFilterModes[static_cast<int>(samplerState.filter())];
59 createInfo.mipmapMode = mipmap_mode_to_vk_sampler_mipmap_mode(samplerState.mipmapMode());
60 createInfo.addressModeU = wrap_mode_to_vk_sampler_address(samplerState.wrapModeX());
61 createInfo.addressModeV = wrap_mode_to_vk_sampler_address(samplerState.wrapModeY());
62 createInfo.addressModeW = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE; // Shouldn't matter
63 createInfo.mipLodBias = 0.0f;
64 createInfo.anisotropyEnable = VK_FALSE;
65 createInfo.maxAnisotropy = 1.0f;
66 createInfo.compareEnable = VK_FALSE;
67 createInfo.compareOp = VK_COMPARE_OP_NEVER;
68 // Vulkan doesn't have a direct mapping of GL's nearest or linear filters for minFilter since
69 // there is always a mipmapMode. To get the same effect as GL we can set minLod = maxLod = 0.0.
70 // This works since our min and mag filters are the same (this forces us to use mag on the 0
71 // level mip). If the filters weren't the same we could set min = 0 and max = 0.25 to force
72 // the minFilter on mip level 0.
73 createInfo.minLod = 0.0f;
74 bool useMipMaps = samplerState.mipmapped() == GrMipmapped::kYes;
75 createInfo.maxLod = !useMipMaps ? 0.0f : 10000.0f;
76 createInfo.borderColor = VK_BORDER_COLOR_FLOAT_TRANSPARENT_BLACK;
77 createInfo.unnormalizedCoordinates = VK_FALSE;
78
79 VkSamplerYcbcrConversionInfo conversionInfo;
80 GrVkSamplerYcbcrConversion* ycbcrConversion = nullptr;
81 if (ycbcrInfo.isValid()) {
82 SkASSERT(gpu->vkCaps().supportsYcbcrConversion());
83
84 ycbcrConversion =
85 gpu->resourceProvider().findOrCreateCompatibleSamplerYcbcrConversion(ycbcrInfo);
86 if (!ycbcrConversion) {
87 return nullptr;
88 }
89
90 conversionInfo.sType = VK_STRUCTURE_TYPE_SAMPLER_YCBCR_CONVERSION_INFO;
91 conversionInfo.pNext = nullptr;
92 conversionInfo.conversion = ycbcrConversion->ycbcrConversion();
93
94 createInfo.pNext = &conversionInfo;
95
96 VkFormatFeatureFlags flags = ycbcrInfo.fFormatFeatures;
97 if (!SkToBool(flags & VK_FORMAT_FEATURE_SAMPLED_IMAGE_YCBCR_CONVERSION_LINEAR_FILTER_BIT)) {
98 createInfo.magFilter = VK_FILTER_NEAREST;
99 createInfo.minFilter = VK_FILTER_NEAREST;
100 } else if (
101 !(flags &
102 VK_FORMAT_FEATURE_SAMPLED_IMAGE_YCBCR_CONVERSION_SEPARATE_RECONSTRUCTION_FILTER_BIT)) {
103 createInfo.magFilter = ycbcrInfo.fChromaFilter;
104 createInfo.minFilter = ycbcrInfo.fChromaFilter;
105 }
106
107 // Required values when using ycbcr conversion
108 createInfo.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
109 createInfo.addressModeV = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
110 createInfo.addressModeW = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
111 createInfo.anisotropyEnable = VK_FALSE;
112 createInfo.unnormalizedCoordinates = VK_FALSE;
113 }
114
115 VkSampler sampler;
116 VkResult result;
117 GR_VK_CALL_RESULT(gpu, result, CreateSampler(gpu->device(), &createInfo, nullptr, &sampler));
118 if (result != VK_SUCCESS) {
119 ycbcrConversion->unref();
120 return nullptr;
121 }
122
123 return new GrVkSampler(gpu, sampler, ycbcrConversion, GenerateKey(samplerState, ycbcrInfo));
124 }
125
freeGPUData() const126 void GrVkSampler::freeGPUData() const {
127 SkASSERT(fSampler);
128 GR_VK_CALL(fGpu->vkInterface(), DestroySampler(fGpu->device(), fSampler, nullptr));
129 if (fYcbcrConversion) {
130 fYcbcrConversion->unref();
131 }
132 }
133
GenerateKey(GrSamplerState samplerState,const GrVkYcbcrConversionInfo & ycbcrInfo)134 GrVkSampler::Key GrVkSampler::GenerateKey(GrSamplerState samplerState,
135 const GrVkYcbcrConversionInfo& ycbcrInfo) {
136 return {samplerState.asIndex(), GrVkSamplerYcbcrConversion::GenerateKey(ycbcrInfo)};
137 }
138