05 - Vulkan - Multiplataforma
C/Visual C
1.057 visualizaciones desde el 22 de Octubre del 2017
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Crear cuentaCrear cuenta#ifdef __linux__
#define VK_USE_PLATFORM_XCB_KHR 1
#define VK_KHR_XCB_SURFACE_EXTENSION_NAME 1
#elif defined(WIN32) || defined(_WIN32) || defined(WIN64) || defined(_WIN64)
#define VK_USE_PLATFORM_WIN32_KHR 1
#define VK_KHR_WIN32_SURFACE_EXTENSION_NAME 1
#else
#error
#endif
#include <stdio.h>
#include <stdlib.h>
#include <vulkan/vulkan.h>
#define APP_NAME "app vulkan"typedef struct{VkApplicationInfo app_info;
VkInstanceCreateInfo inst_info;
VkInstance inst;
//enumeración de dispositivos
VkPhysicalDevice * physical_devices;uint32_t gpu_count;
//crea_dispositivo
VkDeviceQueueCreateInfo queue_info;
VkQueueFamilyProperties * queue_props;VkDeviceCreateInfo device_info;
VkDevice device;
//command_buffer
VkCommandPool cmd_pool;
VkCommandBuffer cmd_bufs[1];
}INST;VkResult init_instance( INST* info);
VkResult enum_devices( INST* info);
VkResult crea_dispositivo( INST* info);
VkResult cmd_buffer( INST* info);
void prueba();
int main(){
INST info;
VkResult res;
res = init_instance( &info );
res = enum_devices( &info );
res = crea_dispositivo( &info );
res = cmd_buffer( &info );
prueba();
if(res == VK_SUCCESS){
printf("Se creó el Buffer\n");
}else{
printf("Error con el Buffer\n");
}vkFreeCommandBuffers(info.device,info.cmd_pool,1,info.cmd_bufs);
vkDestroyCommandPool(info.device,info.cmd_pool,NULL);
free(info.queue_props);
free(info.physical_devices);
vkDestroyInstance(info.inst,NULL);
return 0;
}void prueba(){
#ifdef VK_USE_PLATFORM_XCB_KHR
printf("Estamos en linux\n");
#else
printf("Estamos en windows\n");
#endif
}VkResult cmd_buffer(INST *info)
{VkCommandPoolCreateInfo cmd_pool_info = {};
VkResult res;
cmd_pool_info.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
cmd_pool_info.pNext = NULL;
cmd_pool_info.queueFamilyIndex = info->queue_info.queueFamilyIndex;
cmd_pool_info.flags = 0;
res = vkCreateCommandPool(info->device,&cmd_pool_info,NULL,&info->cmd_pool);
VkCommandBufferAllocateInfo cmd = {};
cmd.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
cmd.pNext = NULL;
cmd.commandPool = info->cmd_pool;
cmd.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
cmd.commandBufferCount = 1;
VkCommandBuffer info_cmd;
res = vkAllocateCommandBuffers(info->device,&cmd,&info_cmd);
info->cmd_bufs[0] = info_cmd;
return res;
}VkResult crea_dispositivo(INST* info){
VkResult res;
vkGetPhysicalDeviceQueueFamilyProperties(info->physical_devices[0],&info->gpu_count,NULL);
info->queue_props = (VkQueueFamilyProperties *)malloc(sizeof(VkQueueFamilyProperties) * info->gpu_count);
vkGetPhysicalDeviceQueueFamilyProperties(info->physical_devices[0],&info->gpu_count,info->queue_props);
bool found = false;for(unsigned int i = 0; i < info->gpu_count; i++){
if(info->queue_props[i].queueFlags & VK_QUEUE_GRAPHICS_BIT){
info->queue_info.queueFamilyIndex = i;
found = true;break;
} }float queue_priorities[1] = {0.0};
info->queue_info.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
info->queue_info.pNext = NULL;
info->queue_info.queueCount = 1;
info->queue_info.pQueuePriorities = queue_priorities;
info->device_info.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
info->device_info.pNext = NULL;
info->device_info.queueCreateInfoCount = 1;
info->device_info.pQueueCreateInfos = &info->queue_info;
info->device_info.enabledExtensionCount = 0;
info->device_info.ppEnabledExtensionNames = NULL;
info->device_info.enabledLayerCount = 0;
info->device_info.ppEnabledLayerNames = NULL;
info->device_info.pEnabledFeatures = NULL;
res = vkCreateDevice(info->physical_devices[0],&info->device_info,NULL,&info->device);
return res;
}VkResult enum_devices(INST *info){
VkResult res;
info->gpu_count = 0;
res = vkEnumeratePhysicalDevices(info->inst,&info->gpu_count,NULL);
if(info->gpu_count > 0){
info->physical_devices = (VkPhysicalDevice* )malloc(sizeof(VkPhysicalDevice) * info->gpu_count);
res = vkEnumeratePhysicalDevices(info->inst,&info->gpu_count,info->physical_devices);
}return res;
}VkResult init_instance(INST *info){
VkResult res;
//información de la aplicación
info->app_info.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO;
info->app_info.pNext = NULL;
info->app_info.pApplicationName = APP_NAME;
info->app_info.applicationVersion = 1;
info->app_info.pEngineName = APP_NAME;
info->app_info.engineVersion = 1;
info->app_info.apiVersion = VK_API_VERSION_1_0;
//información de la instamcia
info->inst_info.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
info->inst_info.pNext = NULL;
info->inst_info.flags = 0;
info->inst_info.pApplicationInfo = &info->app_info;
info->inst_info.enabledExtensionCount = 0;
info->inst_info.ppEnabledExtensionNames = NULL;
info->inst_info.enabledLayerCount = 0;
info->inst_info.ppEnabledLayerNames = NULL;
res = vkCreateInstance(&info->inst_info,NULL,&info->inst);
return res;
}
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