1 /*
2 * Copyright © 2020 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24 #include "vk_ycbcr_conversion.h"
25
26 #include <vulkan/vulkan_android.h>
27
28 #include "vk_common_entrypoints.h"
29 #include "vk_device.h"
30 #include "vk_format.h"
31 #include "vk_util.h"
32
33 VKAPI_ATTR VkResult VKAPI_CALL
vk_common_CreateSamplerYcbcrConversion(VkDevice _device,const VkSamplerYcbcrConversionCreateInfo * pCreateInfo,const VkAllocationCallbacks * pAllocator,VkSamplerYcbcrConversion * pYcbcrConversion)34 vk_common_CreateSamplerYcbcrConversion(VkDevice _device,
35 const VkSamplerYcbcrConversionCreateInfo *pCreateInfo,
36 const VkAllocationCallbacks *pAllocator,
37 VkSamplerYcbcrConversion *pYcbcrConversion)
38 {
39 VK_FROM_HANDLE(vk_device, device, _device);
40 struct vk_ycbcr_conversion *conversion;
41
42 assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_SAMPLER_YCBCR_CONVERSION_CREATE_INFO);
43
44 conversion = vk_object_zalloc(device, pAllocator, sizeof(*conversion),
45 VK_OBJECT_TYPE_SAMPLER_YCBCR_CONVERSION);
46 if (!conversion)
47 return VK_ERROR_OUT_OF_HOST_MEMORY;
48
49 struct vk_ycbcr_conversion_state *state = &conversion->state;
50
51 state->format = pCreateInfo->format;
52 state->ycbcr_model = pCreateInfo->ycbcrModel;
53 state->ycbcr_range = pCreateInfo->ycbcrRange;
54
55 /* Search for VkExternalFormatANDROID and resolve the format. */
56 const VkExternalFormatANDROID *android_ext_info =
57 vk_find_struct_const(pCreateInfo->pNext, EXTERNAL_FORMAT_ANDROID);
58
59 /* We assume that Android externalFormat is just a VkFormat */
60 if (android_ext_info && android_ext_info->externalFormat) {
61 assert(pCreateInfo->format == VK_FORMAT_UNDEFINED);
62 state->format = android_ext_info->externalFormat;
63 } else {
64 /* The Vulkan 1.1.95 spec says:
65 *
66 * "When creating an external format conversion, the value of
67 * components if ignored."
68 */
69 state->mapping[0] = pCreateInfo->components.r;
70 state->mapping[1] = pCreateInfo->components.g;
71 state->mapping[2] = pCreateInfo->components.b;
72 state->mapping[3] = pCreateInfo->components.a;
73 }
74
75 state->chroma_offsets[0] = pCreateInfo->xChromaOffset;
76 state->chroma_offsets[1] = pCreateInfo->yChromaOffset;
77 state->chroma_filter = pCreateInfo->chromaFilter;
78
79 const struct vk_format_ycbcr_info *ycbcr_info =
80 vk_format_get_ycbcr_info(state->format);
81
82 bool has_chroma_subsampled = false;
83 if (ycbcr_info) {
84 for (uint32_t p = 0; p < ycbcr_info->n_planes; p++) {
85 if (ycbcr_info->planes[p].has_chroma &&
86 (ycbcr_info->planes[p].denominator_scales[0] > 1 ||
87 ycbcr_info->planes[p].denominator_scales[1] > 1))
88 has_chroma_subsampled = true;
89 }
90 }
91 state->chroma_reconstruction = has_chroma_subsampled &&
92 (state->chroma_offsets[0] == VK_CHROMA_LOCATION_COSITED_EVEN ||
93 state->chroma_offsets[1] == VK_CHROMA_LOCATION_COSITED_EVEN);
94
95 *pYcbcrConversion = vk_ycbcr_conversion_to_handle(conversion);
96
97 return VK_SUCCESS;
98 }
99
100 VKAPI_ATTR void VKAPI_CALL
vk_common_DestroySamplerYcbcrConversion(VkDevice _device,VkSamplerYcbcrConversion YcbcrConversion,const VkAllocationCallbacks * pAllocator)101 vk_common_DestroySamplerYcbcrConversion(VkDevice _device,
102 VkSamplerYcbcrConversion YcbcrConversion,
103 const VkAllocationCallbacks *pAllocator)
104 {
105 VK_FROM_HANDLE(vk_device, device, _device);
106 VK_FROM_HANDLE(vk_ycbcr_conversion, conversion, YcbcrConversion);
107
108 if (!conversion)
109 return;
110
111 vk_object_free(device, pAllocator, conversion);
112 }
113