1 /*
2 * Copyright © 2016 Red Hat.
3 * Copyright © 2016 Bas Nieuwenhuizen
4 * SPDX-License-Identifier: MIT
5 *
6 * based in part on anv driver which is:
7 * Copyright © 2015 Intel Corporation
8 */
9
10 #include "tu_sampler.h"
11
12 #include "tu_device.h"
13 #include "tu_util.h"
14
15 VKAPI_ATTR VkResult VKAPI_CALL
tu_CreateSampler(VkDevice _device,const VkSamplerCreateInfo * pCreateInfo,const VkAllocationCallbacks * pAllocator,VkSampler * pSampler)16 tu_CreateSampler(VkDevice _device,
17 const VkSamplerCreateInfo *pCreateInfo,
18 const VkAllocationCallbacks *pAllocator,
19 VkSampler *pSampler)
20 {
21 VK_FROM_HANDLE(tu_device, device, _device);
22 struct tu_sampler *sampler;
23
24 assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO);
25
26 sampler = (struct tu_sampler *) vk_sampler_create(
27 &device->vk, pCreateInfo, pAllocator, sizeof(*sampler));
28 if (!sampler)
29 return vk_error(device, VK_ERROR_OUT_OF_HOST_MEMORY);
30
31 const struct VkSamplerYcbcrConversionInfo *ycbcr_conversion =
32 vk_find_struct_const(pCreateInfo->pNext, SAMPLER_YCBCR_CONVERSION_INFO);
33 /* for non-custom border colors, the VK enum is translated directly to an offset in
34 * the border color buffer. custom border colors are located immediately after the
35 * builtin colors, and thus an offset of TU_BORDER_COLOR_BUILTIN is added.
36 */
37 uint32_t border_color = (unsigned) pCreateInfo->borderColor;
38 if (vk_border_color_is_custom(pCreateInfo->borderColor)) {
39 mtx_lock(&device->mutex);
40 border_color = BITSET_FFS(device->custom_border_color) - 1;
41 assert(border_color < TU_BORDER_COLOR_COUNT);
42 BITSET_CLEAR(device->custom_border_color, border_color);
43 mtx_unlock(&device->mutex);
44
45 VkClearColorValue color = sampler->vk.border_color_value;
46 if (sampler->vk.format == VK_FORMAT_D24_UNORM_S8_UINT &&
47 pCreateInfo->borderColor == VK_BORDER_COLOR_INT_CUSTOM_EXT &&
48 device->use_z24uint_s8uint) {
49 /* When sampling stencil using the special Z24UINT_S8UINT format, the
50 * border color is in the second component. Note: if
51 * customBorderColorWithoutFormat is enabled, we may miss doing this
52 * here if the format isn't specified, which is why we don't use that
53 * format.
54 */
55 color.uint32[1] = color.uint32[0];
56 }
57
58 tu6_pack_border_color(
59 &device->global_bo_map->bcolor[border_color], &color,
60 pCreateInfo->borderColor == VK_BORDER_COLOR_INT_CUSTOM_EXT);
61 border_color += TU_BORDER_COLOR_BUILTIN;
62 }
63
64 unsigned aniso = pCreateInfo->anisotropyEnable ?
65 util_last_bit(MIN2((uint32_t)pCreateInfo->maxAnisotropy >> 1, 8)) : 0;
66 bool miplinear = (pCreateInfo->mipmapMode == VK_SAMPLER_MIPMAP_MODE_LINEAR);
67 float min_lod = CLAMP(pCreateInfo->minLod, 0.0f, 4095.0f / 256.0f);
68 float max_lod = CLAMP(pCreateInfo->maxLod, 0.0f, 4095.0f / 256.0f);
69
70 sampler->descriptor[0] =
71 COND(miplinear, A6XX_TEX_SAMP_0_MIPFILTER_LINEAR_NEAR) |
72 A6XX_TEX_SAMP_0_XY_MAG(tu6_tex_filter(pCreateInfo->magFilter, aniso)) |
73 A6XX_TEX_SAMP_0_XY_MIN(tu6_tex_filter(pCreateInfo->minFilter, aniso)) |
74 A6XX_TEX_SAMP_0_ANISO((enum a6xx_tex_aniso) aniso) |
75 A6XX_TEX_SAMP_0_WRAP_S(tu6_tex_wrap(pCreateInfo->addressModeU)) |
76 A6XX_TEX_SAMP_0_WRAP_T(tu6_tex_wrap(pCreateInfo->addressModeV)) |
77 A6XX_TEX_SAMP_0_WRAP_R(tu6_tex_wrap(pCreateInfo->addressModeW)) |
78 A6XX_TEX_SAMP_0_LOD_BIAS(pCreateInfo->mipLodBias);
79 sampler->descriptor[1] =
80 COND(pCreateInfo->flags & VK_SAMPLER_CREATE_NON_SEAMLESS_CUBE_MAP_BIT_EXT,
81 A6XX_TEX_SAMP_1_CUBEMAPSEAMLESSFILTOFF) |
82 COND(pCreateInfo->unnormalizedCoordinates, A6XX_TEX_SAMP_1_UNNORM_COORDS) |
83 A6XX_TEX_SAMP_1_MIN_LOD(min_lod) |
84 A6XX_TEX_SAMP_1_MAX_LOD(max_lod) |
85 COND(pCreateInfo->compareEnable,
86 A6XX_TEX_SAMP_1_COMPARE_FUNC(tu6_compare_func(pCreateInfo->compareOp)));
87 sampler->descriptor[2] = A6XX_TEX_SAMP_2_BCOLOR(border_color);
88 sampler->descriptor[3] = 0;
89
90 if (sampler->vk.reduction_mode != VK_SAMPLER_REDUCTION_MODE_WEIGHTED_AVERAGE) {
91 sampler->descriptor[2] |= A6XX_TEX_SAMP_2_REDUCTION_MODE(
92 tu6_reduction_mode(sampler->vk.reduction_mode));
93 }
94
95 sampler->vk.ycbcr_conversion = ycbcr_conversion ?
96 vk_ycbcr_conversion_from_handle(ycbcr_conversion->conversion) : NULL;
97
98 if (sampler->vk.ycbcr_conversion &&
99 sampler->vk.ycbcr_conversion->state.chroma_filter == VK_FILTER_LINEAR) {
100 sampler->descriptor[2] |= A6XX_TEX_SAMP_2_CHROMA_LINEAR;
101 }
102
103 /* TODO:
104 * A6XX_TEX_SAMP_1_MIPFILTER_LINEAR_FAR disables mipmapping, but vk has no NONE mipfilter?
105 */
106
107 *pSampler = tu_sampler_to_handle(sampler);
108
109 return VK_SUCCESS;
110 }
111
112 VKAPI_ATTR void VKAPI_CALL
tu_DestroySampler(VkDevice _device,VkSampler _sampler,const VkAllocationCallbacks * pAllocator)113 tu_DestroySampler(VkDevice _device,
114 VkSampler _sampler,
115 const VkAllocationCallbacks *pAllocator)
116 {
117 VK_FROM_HANDLE(tu_device, device, _device);
118 VK_FROM_HANDLE(tu_sampler, sampler, _sampler);
119 uint32_t border_color;
120
121 if (!sampler)
122 return;
123
124 border_color = (sampler->descriptor[2] & A6XX_TEX_SAMP_2_BCOLOR__MASK) >> A6XX_TEX_SAMP_2_BCOLOR__SHIFT;
125 if (border_color >= TU_BORDER_COLOR_BUILTIN) {
126 border_color -= TU_BORDER_COLOR_BUILTIN;
127 /* if the sampler had a custom border color, free it. TODO: no lock */
128 mtx_lock(&device->mutex);
129 assert(!BITSET_TEST(device->custom_border_color, border_color));
130 BITSET_SET(device->custom_border_color, border_color);
131 mtx_unlock(&device->mutex);
132 }
133
134 vk_sampler_destroy(&device->vk, pAllocator, &sampler->vk);
135 }
136