Add code

4 files changed, 560 insertions, 0 deletions

diff --git a/_gen.c b/_gen.c
new file mode 100644
index 0000000..b1e9d30
--- /dev/null
+++ b/_gen.c
@@ -0,0 +1,52 @@
+#if 0
+SRC=${0##*/}
+BIN=${SRC%.*}
+glslc compute_module.comp -o COMPUTE_MODULE.tmp
+gcc $SRC -o $BIN -lm -lvulkan && ./$BIN && rm $BIN
+rm COMPUTE_MODULE.tmp
+exit 0
+#endif
+
+#include <stdio.h>
+
+int main(int argc, char **argv) {
+  FILE *in = fopen("COMPUTE_MODULE.tmp", "rb");
+
+  if (in == NULL) {
+    printf("Cannot open compiled module code.\n");
+    return -1;
+  }
+
+  FILE *out = fopen("compute_module.inl.h", "wb");
+
+  if (out == NULL) {
+    printf("Cannot write compiled module inlined data.\n");
+    return -1;
+  }
+
+  fprintf(out, "#ifndef SAMPLE_COMPUTE_COMPUTE_MODULE_INL_H\n");
+  fprintf(out, "#define SAMPLE_COMPUTE_COMPUTE_MODULE_INL_H\n");
+
+  fprintf(out, "\n");
+  fprintf(out, "unsigned COMPUTE_MODULE_CODE[] = {\n ");
+
+  while (!feof(in)) {
+    int x = 0;
+
+    int n = fread(&x, 1, 4, in);
+
+    if (n <= 0)
+      break;
+
+    fprintf(out, " %d,", x);
+  }
+
+  fprintf(out, "\n};\n\n");
+
+  fprintf(out, "#endif\n");
+
+  fclose(in);
+  fclose(out);
+
+  return 0;
+}
diff --git a/compute_module.comp b/compute_module.comp
new file mode 100644
index 0000000..a28192c
--- /dev/null
+++ b/compute_module.comp
@@ -0,0 +1,11 @@
+#version 450
+
+layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
+
+layout(binding = 0) buffer output_buffer {
+  uint values_out[16];
+};
+
+void main() {
+  for (uint i = 0; i < 16; i++) values_out[i] = i;
+}
diff --git a/compute_module.inl.h b/compute_module.inl.h
new file mode 100644
index 0000000..11783a4
--- /dev/null
+++ b/compute_module.inl.h
@@ -0,0 +1,8 @@
+#ifndef SAMPLE_COMPUTE_COMPUTE_MODULE_INL_H
+#define SAMPLE_COMPUTE_COMPUTE_MODULE_INL_H
+
+unsigned COMPUTE_MODULE_CODE[] = {
+  119734787, 65536, 851979, 35, 0, 131089, 1, 393227, 1, 1280527431, 1685353262, 808793134, 0, 196622, 0, 1, 327695, 5, 4, 1852399981, 0, 393232, 4, 17, 1, 1, 1, 196611, 2, 450, 655364, 1197427783, 1279741775, 1885560645, 1953718128, 1600482425, 1701734764, 1919509599, 1769235301, 25974, 524292, 1197427783, 1279741775, 1852399429, 1685417059, 1768185701, 1952671090, 6649449, 262149, 4, 1852399981, 0, 196613, 8, 105, 393221, 20, 1886680431, 1650422901, 1701209717, 114, 393222, 20, 0, 1970037110, 1868526437, 29813, 196613, 22, 0, 262215, 19, 6, 4, 327752, 20, 0, 35, 0, 196679, 20, 3, 262215, 22, 34, 0, 262215, 22, 33, 0, 262215, 34, 11, 25, 131091, 2, 196641, 3, 2, 262165, 6, 32, 0, 262176, 7, 7, 6, 262187, 6, 9, 0, 262187, 6, 16, 16, 131092, 17, 262172, 19, 6, 16, 196638, 20, 19, 262176, 21, 2, 20, 262203, 21, 22, 2, 262165, 23, 32, 1, 262187, 23, 24, 0, 262176, 27, 2, 6, 262187, 23, 30, 1, 262167, 32, 6, 3, 262187, 6, 33, 1, 393260, 32, 34, 33, 33, 33, 327734, 2, 4, 0, 3, 131320, 5, 262203, 7, 8, 7, 196670, 8, 9, 131321, 10, 131320, 10, 262390, 12, 13, 0, 131321, 14, 131320, 14, 262205, 6, 15, 8, 327856, 17, 18, 15, 16, 262394, 18, 11, 12, 131320, 11, 262205, 6, 25, 8, 262205, 6, 26, 8, 393281, 27, 28, 22, 24, 25, 196670, 28, 26, 131321, 13, 131320, 13, 262205, 6, 29, 8, 327808, 6, 31, 29, 30, 196670, 8, 31, 131321, 10, 131320, 12, 65789, 65592,
+};
+
+#endif
diff --git a/main.c b/main.c
new file mode 100644
index 0000000..2c0364d
--- /dev/null
+++ b/main.c
@@ -0,0 +1,489 @@
+#if 0
+SRC=${0##*/}
+BIN=${SRC%.*}
+gcc $SRC -o $BIN -lm -lvulkan && ./$BIN && rm $BIN
+exit 0
+#endif
+
+#include <string.h>
+#include <stdio.h>
+
+#include <vulkan/vulkan.h>
+
+#include "compute_module.inl.h"
+
+typedef signed char      i8;
+typedef signed short     i16;
+typedef signed int       i32;
+typedef signed long long i64;
+
+typedef unsigned char      u8;
+typedef unsigned short     u16;
+typedef unsigned int       u32;
+typedef unsigned long long u64;
+
+typedef float  f32;
+typedef double f64;
+
+typedef signed char c8;
+
+enum {
+  MAX_DEVICE_COUNT       = 16,
+  MAX_QUEUE_FAMILY_COUNT = 64,
+  BUFFER_SIZE            = 64,
+  GROUP_COUNT_X          = 1,
+  GROUP_COUNT_Y          = 1,
+  GROUP_COUNT_Z          = 1,
+};
+
+f32 queue_priorities[] = {
+  1.f,
+};
+
+u32 queue_family_index = 0;
+
+VkInstance            instance;
+VkPhysicalDevice      physical_device;
+VkDevice              device;
+VkQueue               queue;
+VkBuffer              buffer;
+VkDeviceMemory        buffer_memory;
+VkDescriptorSetLayout descriptor_set_layout;
+VkDescriptorPool      descriptor_pool;
+VkDescriptorSet       descriptor_set;
+VkShaderModule        compute_module;
+VkPipelineLayout      pipeline_layout;
+VkPipeline            pipeline;
+VkCommandPool         command_pool;
+VkCommandBuffer       command_buffer;
+
+int main(int argc, char **argv) {
+  //  Create instance
+  //
+  {
+    VkApplicationInfo info_application = {
+      .sType      = VK_STRUCTURE_TYPE_APPLICATION_INFO,
+      .apiVersion = VK_API_VERSION_1_1,
+    };
+
+    VkInstanceCreateInfo info_instance_create = {
+      .sType            = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO,
+      .pApplicationInfo = &info_application,
+    };
+
+    if (vkCreateInstance(&info_instance_create, NULL, &instance) !=
+        VK_SUCCESS) {
+      printf("vkCreateInstance failed.\n");
+      return -1;
+    }
+  }
+
+  //  Find physical device
+  //
+  {
+    u32              device_count = MAX_DEVICE_COUNT;
+    VkPhysicalDevice devices[MAX_DEVICE_COUNT];
+
+    VkResult res = vkEnumeratePhysicalDevices(instance, &device_count,
+                                              devices);
+
+    if (res != VK_SUCCESS && res != VK_INCOMPLETE) {
+      printf("vkEnumeratePhysicalDevices failed.\n");
+      return -1;
+    }
+
+    if (device_count <= 0) {
+      printf("Compatible physical device not found.\n");
+      return -1;
+    }
+
+    u32                        i = 0;
+    VkPhysicalDeviceProperties properties;
+
+    for (; i < device_count; ++i) {
+      vkGetPhysicalDeviceProperties(devices[i], &properties);
+
+      if (strstr(properties.deviceName, "NVIDIA") != NULL ||
+          strstr(properties.deviceName, "AMD") != NULL) {
+        physical_device = devices[i];
+        break;
+      }
+    }
+
+    if (i >= device_count)
+      physical_device = devices[0];
+
+    vkGetPhysicalDeviceProperties(physical_device, &properties);
+
+    printf("Physical device selected: %s\n", properties.deviceName);
+  }
+
+  //  Find queue family
+  //
+  {
+    u32 queue_family_count = MAX_QUEUE_FAMILY_COUNT;
+    VkQueueFamilyProperties queue_families[MAX_QUEUE_FAMILY_COUNT];
+
+    vkGetPhysicalDeviceQueueFamilyProperties(
+        physical_device, &queue_family_count, queue_families);
+
+    u32 index = 0;
+
+    for (; index < queue_family_count; ++index)
+      if (queue_families[index].queueCount > 0 &&
+          (queue_families[index].queueFlags & VK_QUEUE_COMPUTE_BIT))
+        break;
+
+    if (index >= queue_family_count) {
+      printf("Compatible queue family not found.\n");
+      return -1;
+    }
+
+    queue_family_index = index;
+  }
+
+  //  Create logical device
+  //
+  {
+    VkDeviceQueueCreateInfo info_queue_create = {
+      .sType            = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO,
+      .queueCount       = 1,
+      .pQueuePriorities = queue_priorities,
+      .queueFamilyIndex = queue_family_index,
+    };
+
+    VkPhysicalDeviceFeatures device_features;
+    memset(&device_features, 0, sizeof device_features);
+
+    VkDeviceCreateInfo info_device_create = {
+      .sType                = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO,
+      .pQueueCreateInfos    = &info_queue_create,
+      .queueCreateInfoCount = 1,
+      .pEnabledFeatures     = &device_features,
+    };
+
+    if (vkCreateDevice(physical_device, &info_device_create, NULL,
+                       &device) != VK_SUCCESS) {
+      printf("vkCreateDevice failed.\n");
+      return -1;
+    }
+
+    vkGetDeviceQueue(device, queue_family_index, 0, &queue);
+  }
+
+  //  Create buffer
+  //
+  {
+    VkBufferCreateInfo info_buffer_create = {
+      .sType       = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,
+      .size        = BUFFER_SIZE,
+      .usage       = VK_BUFFER_USAGE_STORAGE_BUFFER_BIT,
+      .sharingMode = VK_SHARING_MODE_EXCLUSIVE,
+    };
+
+    if (vkCreateBuffer(device, &info_buffer_create, NULL, &buffer) !=
+        VK_SUCCESS) {
+      printf("vkCreateBuffer failed.\n");
+      return -1;
+    }
+
+    VkMemoryRequirements             memory_requirements;
+    VkPhysicalDeviceMemoryProperties memory_properties;
+
+    vkGetBufferMemoryRequirements(device, buffer,
+                                  &memory_requirements);
+
+    VkMemoryAllocateInfo info_allocate = {
+      .sType          = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO,
+      .allocationSize = memory_requirements.size,
+    };
+
+    vkGetPhysicalDeviceMemoryProperties(physical_device,
+                                        &memory_properties);
+
+    u32 i          = 0;
+    u32 properties = VK_MEMORY_PROPERTY_HOST_COHERENT_BIT |
+                     VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT;
+
+    for (; i < memory_properties.memoryTypeCount; ++i)
+      if ((memory_requirements.memoryTypeBits & (1 << i)) &&
+          ((memory_properties.memoryTypes[i].propertyFlags &
+            properties) == properties)) {
+        info_allocate.memoryTypeIndex = i;
+        break;
+      }
+
+    if (i >= memory_properties.memoryTypeCount) {
+      printf("Compatible memory properties not found.\n");
+      return -1;
+    }
+
+    if (vkAllocateMemory(device, &info_allocate, NULL,
+                         &buffer_memory) != VK_SUCCESS) {
+      printf("vkAllocateMemory failed.\n");
+      return -1;
+    }
+
+    if (vkBindBufferMemory(device, buffer, buffer_memory, 0) !=
+        VK_SUCCESS) {
+      printf("vkBindBufferMemory failed.\n");
+      return -1;
+    }
+  }
+
+  //  Create descriptor set layout
+  //
+  {
+    VkDescriptorSetLayoutBinding descriptor_set_layout_binding = {
+      .binding         = 0,
+      .descriptorType  = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER,
+      .descriptorCount = 1,
+      .stageFlags      = VK_SHADER_STAGE_COMPUTE_BIT,
+    };
+
+    VkDescriptorSetLayoutCreateInfo
+        info_descriptor_set_layout_create = {
+          .sType =
+              VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO,
+          .bindingCount = 1,
+          .pBindings    = &descriptor_set_layout_binding,
+        };
+
+    if (vkCreateDescriptorSetLayout(
+            device, &info_descriptor_set_layout_create, NULL,
+            &descriptor_set_layout) != VK_SUCCESS) {
+      printf("vkCreateDescriptorSetLayout failed.\n");
+      return -1;
+    }
+  }
+
+  //  Create descriptor set
+  //
+  {
+    VkDescriptorPoolSize descriptor_pool_size = {
+      .type            = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER,
+      .descriptorCount = 1,
+    };
+
+    VkDescriptorPoolCreateInfo info_descriptor_pool_create = {
+      .sType         = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO,
+      .maxSets       = 1,
+      .poolSizeCount = 1,
+      .pPoolSizes    = &descriptor_pool_size,
+    };
+
+    if (vkCreateDescriptorPool(device, &info_descriptor_pool_create,
+                               NULL,
+                               &descriptor_pool) != VK_SUCCESS) {
+      printf("vkCreateDescriptorPool failed.\n");
+      return -1;
+    }
+
+    VkDescriptorSetAllocateInfo info_descriptor_set_allocate = {
+      .sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO,
+      .descriptorPool     = descriptor_pool,
+      .descriptorSetCount = 1,
+      .pSetLayouts        = &descriptor_set_layout,
+    };
+
+    if (vkAllocateDescriptorSets(device,
+                                 &info_descriptor_set_allocate,
+                                 &descriptor_set) != VK_SUCCESS) {
+      printf("vkAllocateDescriptorSets failed.\n");
+      return -1;
+    }
+
+    VkDescriptorBufferInfo info_descriptor_buffer = {
+      .buffer = buffer,
+      .offset = 0,
+      .range  = BUFFER_SIZE,
+    };
+
+    VkWriteDescriptorSet write_descriptor_set = {
+      .sType           = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET,
+      .dstSet          = descriptor_set,
+      .dstBinding      = 0,
+      .descriptorCount = 1,
+      .descriptorType  = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER,
+      .pBufferInfo     = &info_descriptor_buffer,
+    };
+
+    vkUpdateDescriptorSets(device, 1, &write_descriptor_set, 0, NULL);
+  }
+
+  //  Create compute pipeline
+  //
+  {
+    VkShaderModuleCreateInfo info_module_create = {
+      .sType    = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO,
+      .pCode    = COMPUTE_MODULE_CODE,
+      .codeSize = sizeof COMPUTE_MODULE_CODE,
+    };
+
+    if (vkCreateShaderModule(device, &info_module_create, NULL,
+                             &compute_module) != VK_SUCCESS) {
+      printf("vkCreateShaderModule failed.\n");
+      return -1;
+    }
+
+    VkPipelineShaderStageCreateInfo info_shader_stage_create = {
+      .sType  = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
+      .stage  = VK_SHADER_STAGE_COMPUTE_BIT,
+      .module = compute_module,
+      .pName  = "main",
+    };
+
+    VkPipelineLayoutCreateInfo info_pipeline_layout_create = {
+      .sType          = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO,
+      .setLayoutCount = 1,
+      .pSetLayouts    = &descriptor_set_layout,
+    };
+
+    if (vkCreatePipelineLayout(device, &info_pipeline_layout_create,
+                               NULL,
+                               &pipeline_layout) != VK_SUCCESS) {
+      printf("vkCreatePipelineLayout failed.\n");
+      return -1;
+    }
+
+    VkComputePipelineCreateInfo info_pipeline_create = {
+      .sType  = VK_STRUCTURE_TYPE_COMPUTE_PIPELINE_CREATE_INFO,
+      .stage  = info_shader_stage_create,
+      .layout = pipeline_layout,
+    };
+
+    if (vkCreateComputePipelines(device, VK_NULL_HANDLE, 1,
+                                 &info_pipeline_create, NULL,
+                                 &pipeline)) {
+      printf("vkCreateComputePipelines failed.\n");
+      return 0;
+    }
+  }
+
+  //  Create command buffer
+  //
+  {
+    VkCommandPoolCreateInfo info_command_pool_create = {
+      .sType            = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO,
+      .queueFamilyIndex = queue_family_index,
+    };
+
+    if (vkCreateCommandPool(device, &info_command_pool_create, NULL,
+                            &command_pool) != VK_SUCCESS) {
+      printf("vkCreateCommandPool failed.\n");
+      return -1;
+    }
+
+    VkCommandBufferAllocateInfo info_command_buffer_allocate = {
+      .sType       = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO,
+      .commandPool = command_pool,
+      .level       = VK_COMMAND_BUFFER_LEVEL_PRIMARY,
+      .commandBufferCount = 1,
+    };
+
+    if (vkAllocateCommandBuffers(device,
+                                 &info_command_buffer_allocate,
+                                 &command_buffer) != VK_SUCCESS) {
+      printf("vkAllocateCommandBuffers failed.\n");
+      return -1;
+    }
+
+    VkCommandBufferBeginInfo info_begin = {
+      .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO,
+      .flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT,
+    };
+
+    if (vkBeginCommandBuffer(command_buffer, &info_begin) !=
+        VK_SUCCESS) {
+      printf("vkBeginCommandBuffer failed.\n");
+      return -1;
+    }
+
+    vkCmdBindPipeline(command_buffer, VK_PIPELINE_BIND_POINT_COMPUTE,
+                      pipeline);
+
+    vkCmdBindDescriptorSets(
+        command_buffer, VK_PIPELINE_BIND_POINT_COMPUTE,
+        pipeline_layout, 0, 1, &descriptor_set, 0, NULL);
+
+    vkCmdDispatch(command_buffer, GROUP_COUNT_X, GROUP_COUNT_Y,
+                  GROUP_COUNT_Z);
+
+    if (vkEndCommandBuffer(command_buffer) != VK_SUCCESS) {
+      printf("vkEndCommandBuffer failed.\n");
+      return -1;
+    }
+  }
+
+  //  Run command buffer
+  //
+  {
+    VkSubmitInfo info_submit = {
+      .sType              = VK_STRUCTURE_TYPE_SUBMIT_INFO,
+      .commandBufferCount = 1,
+      .pCommandBuffers    = &command_buffer,
+    };
+
+    VkFenceCreateInfo info_fence_create = {
+      .sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO,
+    };
+
+    VkFence fence;
+
+    if (vkCreateFence(device, &info_fence_create, NULL, &fence) !=
+        VK_SUCCESS) {
+      printf("vkCreateFence failed.\n");
+      return -1;
+    }
+
+    if (vkQueueSubmit(queue, 1, &info_submit, fence) != VK_SUCCESS) {
+      printf("vkQueueSubmit failed.\n");
+      return -1;
+    }
+
+    if (vkWaitForFences(device, 1, &fence, VK_TRUE, 100000000000) !=
+        VK_SUCCESS) {
+      printf("vkWaitForFences failed.\n");
+      return -1;
+    }
+
+    vkDestroyFence(device, fence, NULL);
+  }
+
+  //  Read output buffer
+  //
+  {
+    u32 *p = NULL;
+
+    if (vkMapMemory(device, buffer_memory, 0, BUFFER_SIZE, 0,
+                    (void **) &p) != VK_SUCCESS) {
+      printf("vkMapMemory failed.\n");
+      return -1;
+    }
+
+    printf("Data:");
+    for (u32 i = 0; i < BUFFER_SIZE / 4; i++)
+      printf(" %2d", (int) p[i]);
+    printf("\n");
+
+    vkUnmapMemory(device, buffer_memory);
+  }
+
+  //  Cleanup
+  //
+  {
+    vkFreeMemory(device, buffer_memory, NULL);
+    vkDestroyBuffer(device, buffer, NULL);
+    vkDestroyShaderModule(device, compute_module, NULL);
+    vkDestroyDescriptorPool(device, descriptor_pool, NULL);
+    vkDestroyDescriptorSetLayout(device, descriptor_set_layout, NULL);
+    vkDestroyPipelineLayout(device, pipeline_layout, NULL);
+    vkDestroyPipeline(device, pipeline, NULL);
+    vkDestroyCommandPool(device, command_pool, NULL);
+    vkDestroyDevice(device, NULL);
+    vkDestroyInstance(instance, NULL);
+  }
+
+  printf("OK\n");
+  return 0;
+}