eleni.mutantstargoat.com Git - vkrt/blob - src/ui.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include "ui.h"
   5
   6 bool
   7 vk_create_swapchain(struct vk_ctx *ctx,
   8                     int width, int height,
   9                     int num_qfam,
  10                     struct vk_swapchain *swapchain)
  11 {
  12     VkSwapchainCreateInfoKHR s_info;
  13     VkExtent2D extent;
  14
  15     extent.width = width;
  16     extent.height = height;
  17
  18     memset(&s_info, 0, sizeof s_info);
  19
  20     s_info.sType = VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR;
  21     s_info.flags = 0;
  22     s_info.surface = swapchain->surface;
  23     s_info.minImageCount = 2;
  24     s_info.imageFormat = VK_FORMAT_R32G32B32A32_SFLOAT;
  25     s_info.imageColorSpace = VK_COLOR_SPACE_SRGB_NONLINEAR_KHR;
  26     s_info.imageExtent = extent;
  27     s_info.imageArrayLayers = 1;
  28     s_info.imageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT |
  29                         VK_IMAGE_USAGE_SAMPLED_BIT |
  30                         VK_IMAGE_USAGE_TRANSFER_SRC_BIT |
  31                         VK_IMAGE_USAGE_TRANSFER_DST_BIT;
  32
  33     s_info.imageSharingMode = VK_SHARING_MODE_CONCURRENT;
  34     s_info.queueFamilyIndexCount = num_qfam; /* how many queue families */
  35
  36     s_info.preTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
  37     s_info.compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
  38     s_info.presentMode = VK_PRESENT_MODE_FIFO_KHR;
  39     s_info.clipped = VK_TRUE;
  40     s_info.oldSwapchain = VK_NULL_HANDLE;
  41
  42     if (vkCreateSwapchainKHR(ctx->dev, &s_info, 0,
  43                              &swapchain->swapchain) != VK_SUCCESS) {
  44         fprintf(stderr, "Failed to create a swapchain.\n");
  45         return false;
  46     }
  47
  48     return true;
  49 }
  50
  51 void
  52 vk_destroy_swapchain(struct vk_ctx *ctx,
  53                      struct vk_swapchain *swapchain)
  54 {
  55     vkDestroySwapchainKHR(ctx->dev, swapchain->swapchain, 0);
  56     vkDestroySurfaceKHR(ctx->inst, swapchain->surface, 0);
  57 }