1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrVkSampler.h"
#include "GrTextureAccess.h"
#include "GrVkGpu.h"
static inline VkSamplerAddressMode tile_to_vk_sampler_address(SkShader::TileMode tm) {
static const VkSamplerAddressMode gWrapModes[] = {
VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE,
VK_SAMPLER_ADDRESS_MODE_REPEAT,
VK_SAMPLER_ADDRESS_MODE_MIRRORED_REPEAT
};
GR_STATIC_ASSERT(SkShader::kTileModeCount == SK_ARRAY_COUNT(gWrapModes));
GR_STATIC_ASSERT(0 == SkShader::kClamp_TileMode);
GR_STATIC_ASSERT(1 == SkShader::kRepeat_TileMode);
GR_STATIC_ASSERT(2 == SkShader::kMirror_TileMode);
return gWrapModes[tm];
}
GrVkSampler* GrVkSampler::Create(const GrVkGpu* gpu, const GrTextureParams& params) {
static VkFilter vkMinFilterModes[] = {
VK_FILTER_NEAREST,
VK_FILTER_LINEAR,
VK_FILTER_LINEAR
};
static VkFilter vkMagFilterModes[] = {
VK_FILTER_NEAREST,
VK_FILTER_LINEAR,
VK_FILTER_LINEAR
};
VkSamplerCreateInfo createInfo;
memset(&createInfo, 0, sizeof(VkSamplerCreateInfo));
createInfo.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO;
createInfo.pNext = 0;
createInfo.flags = 0;
createInfo.magFilter = vkMagFilterModes[params.filterMode()];
createInfo.minFilter = vkMinFilterModes[params.filterMode()];
createInfo.mipmapMode = VK_SAMPLER_MIPMAP_MODE_NEAREST;
createInfo.addressModeU = tile_to_vk_sampler_address(params.getTileModeX());
createInfo.addressModeV = tile_to_vk_sampler_address(params.getTileModeY());
createInfo.addressModeW = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE; // Shouldn't matter
createInfo.mipLodBias = 0.0f;
createInfo.anisotropyEnable = VK_FALSE;
createInfo.maxAnisotropy = 1.0f;
createInfo.compareEnable = VK_FALSE;
createInfo.compareOp = VK_COMPARE_OP_NEVER;
createInfo.minLod = 0.0f;
createInfo.maxLod = 0.0f;
createInfo.borderColor = VK_BORDER_COLOR_FLOAT_TRANSPARENT_BLACK;
createInfo.unnormalizedCoordinates = VK_FALSE;
VkSampler sampler;
GR_VK_CALL_ERRCHECK(gpu->vkInterface(), CreateSampler(gpu->device(),
&createInfo,
nullptr,
&sampler));
return new GrVkSampler(sampler, GenerateKey(params));
}
void GrVkSampler::freeGPUData(const GrVkGpu* gpu) const {
SkASSERT(fSampler);
GR_VK_CALL(gpu->vkInterface(), DestroySampler(gpu->device(), fSampler, nullptr));
}
uint8_t GrVkSampler::GenerateKey(const GrTextureParams& params) {
uint8_t key = params.filterMode();
SkASSERT(params.filterMode() <= 3);
key |= (params.getTileModeX() << 2);
GR_STATIC_ASSERT(SkShader::kTileModeCount <= 4);
key |= (params.getTileModeY() << 4);
return key;
}
|
