1/*
2 * Copyright © 2022 Collabora, LTD
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_sampler.h"
25#include "vk_util.h"
26
27VkClearColorValue
28vk_border_color_value(VkBorderColor color)
29{
30   switch (color) {
31   case VK_BORDER_COLOR_FLOAT_TRANSPARENT_BLACK:
32      return (VkClearColorValue) { .float32 = { 0, 0, 0, 0 } };
33   case VK_BORDER_COLOR_INT_TRANSPARENT_BLACK:
34      return (VkClearColorValue) { .int32 = { 0, 0, 0, 0 } };
35   case VK_BORDER_COLOR_FLOAT_OPAQUE_BLACK:
36      return (VkClearColorValue) { .float32 = { 0, 0, 0, 1 } };
37   case VK_BORDER_COLOR_INT_OPAQUE_BLACK:
38      return (VkClearColorValue) { .int32 = { 0, 0, 0, 1 } };
39   case VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE:
40      return (VkClearColorValue) { .float32 = { 1, 1, 1, 1 } };
41   case VK_BORDER_COLOR_INT_OPAQUE_WHITE:
42      return (VkClearColorValue) { .int32 = { 1, 1, 1, 1 } };
43   default:
44      unreachable("Invalid or custom border color enum");
45   }
46}
47
48bool
49vk_border_color_is_int(VkBorderColor color)
50{
51   switch (color) {
52   case VK_BORDER_COLOR_FLOAT_TRANSPARENT_BLACK:
53   case VK_BORDER_COLOR_FLOAT_OPAQUE_BLACK:
54   case VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE:
55   case VK_BORDER_COLOR_FLOAT_CUSTOM_EXT:
56      return false;
57   case VK_BORDER_COLOR_INT_TRANSPARENT_BLACK:
58   case VK_BORDER_COLOR_INT_OPAQUE_BLACK:
59   case VK_BORDER_COLOR_INT_OPAQUE_WHITE:
60   case VK_BORDER_COLOR_INT_CUSTOM_EXT:
61      return true;
62   default:
63      unreachable("Invalid border color enum");
64   }
65}
66
67VkClearColorValue
68vk_sampler_border_color_value(const VkSamplerCreateInfo *pCreateInfo,
69                              VkFormat *format_out)
70{
71   if (pCreateInfo->borderColor == VK_BORDER_COLOR_FLOAT_CUSTOM_EXT ||
72       pCreateInfo->borderColor == VK_BORDER_COLOR_INT_CUSTOM_EXT) {
73      const VkSamplerCustomBorderColorCreateInfoEXT *border_color_info =
74         vk_find_struct_const(pCreateInfo->pNext,
75                              SAMPLER_CUSTOM_BORDER_COLOR_CREATE_INFO_EXT);
76      if (format_out)
77         *format_out = border_color_info->format;
78
79      return border_color_info->customBorderColor;
80   } else {
81      if (format_out)
82         *format_out = VK_FORMAT_UNDEFINED;
83
84      return vk_border_color_value(pCreateInfo->borderColor);
85   }
86}
87
88