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| 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 "GrVkSampler.h" |
| 9 |
| 10 #include "GrTextureAccess.h" |
| 11 #include "GrVkGpu.h" |
| 12 |
| 13 static inline VkSamplerAddressMode tile_to_vk_sampler_address(SkShader::TileMode
tm) { |
| 14 static const VkSamplerAddressMode gWrapModes[] = { |
| 15 VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE, |
| 16 VK_SAMPLER_ADDRESS_MODE_REPEAT, |
| 17 VK_SAMPLER_ADDRESS_MODE_MIRRORED_REPEAT |
| 18 }; |
| 19 GR_STATIC_ASSERT(SkShader::kTileModeCount == SK_ARRAY_COUNT(gWrapModes)); |
| 20 GR_STATIC_ASSERT(0 == SkShader::kClamp_TileMode); |
| 21 GR_STATIC_ASSERT(1 == SkShader::kRepeat_TileMode); |
| 22 GR_STATIC_ASSERT(2 == SkShader::kMirror_TileMode); |
| 23 return gWrapModes[tm]; |
| 24 } |
| 25 |
| 26 GrVkSampler* GrVkSampler::Create(const GrVkGpu* gpu, const GrTextureAccess& text
ureAccess) { |
| 27 |
| 28 static VkFilter vkMinFilterModes[] = { |
| 29 VK_FILTER_NEAREST, |
| 30 VK_FILTER_LINEAR, |
| 31 VK_FILTER_LINEAR |
| 32 }; |
| 33 static VkFilter vkMagFilterModes[] = { |
| 34 VK_FILTER_NEAREST, |
| 35 VK_FILTER_LINEAR, |
| 36 VK_FILTER_LINEAR |
| 37 }; |
| 38 |
| 39 const GrTextureParams& params = textureAccess.getParams(); |
| 40 |
| 41 VkSamplerCreateInfo createInfo; |
| 42 memset(&createInfo, 0, sizeof(VkSamplerCreateInfo)); |
| 43 createInfo.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO; |
| 44 createInfo.pNext = 0; |
| 45 createInfo.flags = 0; |
| 46 createInfo.magFilter = vkMagFilterModes[params.filterMode()]; |
| 47 createInfo.minFilter = vkMinFilterModes[params.filterMode()]; |
| 48 createInfo.mipmapMode = VK_SAMPLER_MIPMAP_MODE_NEAREST; |
| 49 createInfo.addressModeU = tile_to_vk_sampler_address(params.getTileModeX()); |
| 50 createInfo.addressModeV = tile_to_vk_sampler_address(params.getTileModeY()); |
| 51 createInfo.addressModeW = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE; // Shouldn'
t matter |
| 52 createInfo.mipLodBias = 0.0f; |
| 53 createInfo.anisotropyEnable = VK_FALSE; |
| 54 createInfo.maxAnisotropy = 1.0f; |
| 55 createInfo.compareEnable = VK_FALSE; |
| 56 createInfo.compareOp = VK_COMPARE_OP_NEVER; |
| 57 createInfo.minLod = 0.0f; |
| 58 createInfo.maxLod = 0.0f; |
| 59 createInfo.borderColor = VK_BORDER_COLOR_FLOAT_TRANSPARENT_BLACK; |
| 60 createInfo.unnormalizedCoordinates = VK_FALSE; |
| 61 |
| 62 VkSampler sampler; |
| 63 GR_VK_CALL_ERRCHECK(gpu->vkInterface(), CreateSampler(gpu->device(), |
| 64 &createInfo, |
| 65 nullptr, |
| 66 &sampler)); |
| 67 |
| 68 return new GrVkSampler(sampler); |
| 69 } |
| 70 |
| 71 void GrVkSampler::freeGPUData(const GrVkGpu* gpu) const { |
| 72 SkASSERT(fSampler); |
| 73 GR_VK_CALL(gpu->vkInterface(), DestroySampler(gpu->device(), fSampler, nullp
tr)); |
| 74 } |
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