git.mutantstargoat.com Git - gph-gfx/blob - src/ggfx_vk.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include <ctype.h>
   5 #include <vulkan/vulkan.h>
   6 #include "gphgfx.h"
   7
   8 #define VER_MAJOR       0
   9 #define VER_MINOR       1
  10
  11 static const char *vk_strerror(VkResult res);
  12
  13 static VkInstance vk;
  14
  15 int ggfx_init(const char *appname, unsigned int flags)
  16 {
  17         VkResult res;
  18         VkInstanceCreateInfo iinf = {0};
  19         VkApplicationInfo appinf = {0};
  20         VkLayerProperties *lprop = 0;
  21         VkExtensionProperties *iext;
  22         uint32_t i, j, num_inst_layers, num_inst_ext, lprop_count, iext_count;
  23         char **inst_layers = 0, **inst_ext = 0;
  24
  25         static const char *debug_layers[] = {
  26                 "VK_LAYER_LUNARG_device_limits",
  27                 "VK_LAYER_LUNARG_image",
  28                 "VK_LAYER_LUNARG_object_tracker",
  29                 "VK_LAYER_LUNARG_core_validation",
  30                 "VK_LAYER_LUNARG_parameter_validation",
  31                 "VK_LAYER_LUNARG_swapchain",
  32                 "VK_LAYER_GOOGLE_threading",
  33                 "VK_LAYER_GOOGLE_unique_objects",
  34                 0
  35         };
  36         static const char *extensions[] = {
  37                 "VK_KHR_surface",
  38                 "VK_KHR_xlib_surface",
  39                 0
  40         };
  41
  42         vkEnumerateInstanceLayerProperties(&lprop_count, 0);
  43         if(lprop_count > 0) {
  44                 if(!(lprop = malloc(lprop_count * sizeof *lprop))) {
  45                         perror("ggfx_init: failed to allocate layer property list");
  46                         return -1;
  47                 }
  48                 vkEnumerateInstanceLayerProperties(&lprop_count, lprop);
  49
  50                 if(flags & GGFX_INIT_DEBUG) {
  51                         if(!(inst_layers = malloc(lprop_count * sizeof *inst_layers))) {
  52                                 perror("ggfx_init: failed to allocate layer properties");
  53                                 return -1;
  54                         }
  55                 }
  56
  57                 printf("%d available instance layers\n", lprop_count);
  58                 num_inst_layers = 0;
  59                 for(i=0; i<lprop_count; i++) {
  60                         char use = ' ';
  61                         if(inst_layers) {
  62                                 for(j=0; debug_layers[j]; j++) {
  63                                         if(strcmp(lprop[i].layerName, debug_layers[j]) == 0) {
  64                                                 inst_layers[num_inst_layers++] = lprop[i].layerName;
  65                                                 use = '*';
  66                                                 break;
  67                                         }
  68                                 }
  69
  70                         }
  71                         printf(" [%c] %s: %s\n", use, lprop[i].layerName, lprop[i].description);
  72                 }
  73         }
  74
  75         vkEnumerateInstanceExtensionProperties(0, &iext_count, 0);
  76         if(iext_count > 0) {
  77                 if(!(iext = malloc(iext_count * sizeof *iext))) {
  78                         perror("ggfx_init: failed to allocate instance extensions property list");
  79                         return -1;
  80                 }
  81                 vkEnumerateInstanceExtensionProperties(0, &iext_count, iext);
  82
  83                 if(!(inst_ext = malloc(iext_count * sizeof *inst_ext))) {
  84                         perror("ggfx_init: failed to allocate instance extension properties");
  85                         return -1;
  86                 }
  87
  88                 printf("%d available instance extensions\n", iext_count);
  89                 num_inst_ext = 0;
  90                 for(i=0; i<iext_count; i++) {
  91                         char use = ' ';
  92                         for(j=0; extensions[j]; j++) {
  93                                 if(strcmp(iext[i].extensionName, extensions[j]) == 0) {
  94                                         inst_ext[num_inst_ext++] = iext[i].extensionName;
  95                                         use = '*';
  96                                         break;
  97                                 }
  98                         }
  99                         printf(" [%c] %s\n", use, iext[i].extensionName);
 100                 }
 101         }
 102
 103
 104         appinf.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO;
 105         appinf.pApplicationName = appname ? appname : "unknown";
 106         appinf.applicationVersion = 1;
 107         appinf.pEngineName = "gph-gfx";
 108         appinf.engineVersion = VK_MAKE_VERSION(VER_MAJOR, VER_MINOR, 0);
 109
 110         iinf.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
 111         iinf.pApplicationInfo = &appinf;
 112         iinf.ppEnabledLayerNames = (const char**)inst_layers;
 113         iinf.enabledLayerCount = num_inst_layers;
 114         iinf.ppEnabledExtensionNames = (const char**)inst_ext;
 115         iinf.enabledExtensionCount = num_inst_ext;
 116
 117         if((res = vkCreateInstance(&iinf, 0, &vk)) != 0) {
 118                 fprintf(stderr, "ggfx_init: failed to create vulkan instance: %s\n", vk_strerror(res));
 119                 return -1;
 120         }
 121
 122         return 0;
 123 }
 124
 125 void ggfx_shutdown(void)
 126 {
 127         if(!vk) return;
 128
 129         vkDestroyInstance(vk, 0);
 130         vk = 0;
 131 }
 132
 133 static const char *vk_strerror(VkResult res)
 134 {
 135         switch(res) {
 136         case VK_SUCCESS: return "success";
 137         case VK_NOT_READY: return "not ready";
 138         case VK_TIMEOUT: return "timeout";
 139         case VK_EVENT_SET: return "event set";
 140         case VK_EVENT_RESET: return "event reset";
 141         case VK_INCOMPLETE: return "incomplete";
 142     case VK_ERROR_OUT_OF_HOST_MEMORY: return "out of host memory";
 143     case VK_ERROR_OUT_OF_DEVICE_MEMORY: return "out of device memory";
 144     case VK_ERROR_INITIALIZATION_FAILED: return "init failed";
 145     case VK_ERROR_DEVICE_LOST: return "device lost";
 146     case VK_ERROR_MEMORY_MAP_FAILED: return "map failed";
 147     case VK_ERROR_LAYER_NOT_PRESENT: return "layer not present";
 148     case VK_ERROR_EXTENSION_NOT_PRESENT: return "extension not present";
 149     case VK_ERROR_FEATURE_NOT_PRESENT: return "feature not present";
 150     case VK_ERROR_INCOMPATIBLE_DRIVER: return "incompatible driver";
 151     case VK_ERROR_TOO_MANY_OBJECTS: return "too many objects";
 152     case VK_ERROR_FORMAT_NOT_SUPPORTED: return "format not supported";
 153     case VK_ERROR_FRAGMENTED_POOL: return "framgented pool";
 154     case VK_ERROR_OUT_OF_POOL_MEMORY: return "out of pool memory";
 155     case VK_ERROR_INVALID_EXTERNAL_HANDLE: return "invalid external handle";
 156     case VK_ERROR_FRAGMENTATION: return "fragmentation";
 157     case VK_ERROR_INVALID_OPAQUE_CAPTURE_ADDRESS: return "invalid opaque capture address";
 158     case VK_ERROR_SURFACE_LOST_KHR: return "surface lost";
 159     case VK_ERROR_NATIVE_WINDOW_IN_USE_KHR: return "native window in use";
 160     case VK_SUBOPTIMAL_KHR: return "suboptimal";
 161     case VK_ERROR_OUT_OF_DATE_KHR: return "out of date";
 162     case VK_ERROR_INCOMPATIBLE_DISPLAY_KHR: return "incompatible display";
 163     case VK_ERROR_VALIDATION_FAILED_EXT: return "validation failed";
 164     case VK_ERROR_INVALID_SHADER_NV: return "invalid shader";
 165     case VK_ERROR_INCOMPATIBLE_VERSION_KHR: return "incompatible version";
 166     case VK_ERROR_INVALID_DRM_FORMAT_MODIFIER_PLANE_LAYOUT_EXT: return "invalid DRM format modifier plane layout";
 167     case VK_ERROR_NOT_PERMITTED_EXT: return "not permitted";
 168     case VK_ERROR_FULL_SCREEN_EXCLUSIVE_MODE_LOST_EXT: return "fullscreen exclusive mode lost";
 169     case VK_THREAD_IDLE_KHR: return "thread idle";
 170     case VK_THREAD_DONE_KHR: return "thread done";
 171     case VK_OPERATION_DEFERRED_KHR: return "operation deferred";
 172     case VK_OPERATION_NOT_DEFERRED_KHR: return "operation not deferred";
 173     case VK_ERROR_PIPELINE_COMPILE_REQUIRED_EXT: return "pipeline compile required";
 174
 175     case VK_ERROR_UNKNOWN:
 176         default:
 177                 break;
 178         }
 179
 180         return "unknown";
 181 }