--- /dev/null
+/*
+ * Copyright (c) 2015-2016 The Khronos Group Inc.
+ * Copyright (c) 2015-2016 Valve Corporation
+ * Copyright (c) 2015-2016 LunarG, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and/or associated documentation files (the "Materials"), to
+ * deal in the Materials without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Materials, and to permit persons to whom the Materials are
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice(s) and this permission notice shall be included in
+ * all copies or substantial portions of the Materials.
+ *
+ * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ *
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE MATERIALS OR THE
+ * USE OR OTHER DEALINGS IN THE MATERIALS.
+ *
+ * Author: Chia-I Wu <olvaffe@gmail.com>
+ * Author: Cody Northrop <cody@lunarg.com>
+ * Author: Courtney Goeltzenleuchter <courtney@LunarG.com>
+ * Author: Ian Elliott <ian@LunarG.com>
+ * Author: Jon Ashburn <jon@lunarg.com>
+ * Author: Piers Daniell <pdaniell@nvidia.com>
+ */
+/*
+ * Draw a textured triangle with depth testing. This is written against Intel
+ * ICD. It does not do state transition nor object memory binding like it
+ * should. It also does no error checking.
+ */
+
+#ifndef _MSC_VER
+#define _ISOC11_SOURCE /* for aligned_alloc() */
+#endif
+
+#include <config.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdbool.h>
+#include <assert.h>
+#include <signal.h>
+
+#ifdef _WIN32
+#pragma comment(linker, "/subsystem:windows")
+#define APP_NAME_STR_LEN 80
+#endif // _WIN32
+
+#include <vulkan/vulkan.h>
+
+#define DEMO_TEXTURE_COUNT 1
+#define VERTEX_BUFFER_BIND_ID 0
+#define APP_SHORT_NAME "tri"
+#define APP_LONG_NAME "The Vulkan Triangle Demo Program"
+
+#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
+
+#if defined(NDEBUG) && defined(__GNUC__)
+#define U_ASSERT_ONLY __attribute__((unused))
+#else
+#define U_ASSERT_ONLY
+#endif
+
+#ifdef _WIN32
+#define ERR_EXIT(err_msg, err_class) \
+ do { \
+ MessageBox(NULL, err_msg, err_class, MB_OK); \
+ exit(1); \
+ } while (0)
+#else // _WIN32
+
+#define ERR_EXIT(err_msg, err_class) \
+ do { \
+ printf(err_msg); \
+ fflush(stdout); \
+ exit(1); \
+ } while (0)
+#endif // _WIN32
+
+#define GET_INSTANCE_PROC_ADDR(inst, entrypoint) \
+ { \
+ demo->fp##entrypoint = \
+ (PFN_vk##entrypoint)vkGetInstanceProcAddr(inst, "vk" #entrypoint); \
+ if (demo->fp##entrypoint == NULL) { \
+ ERR_EXIT("vkGetInstanceProcAddr failed to find vk" #entrypoint, \
+ "vkGetInstanceProcAddr Failure"); \
+ } \
+ }
+
+#define GET_DEVICE_PROC_ADDR(dev, entrypoint) \
+ { \
+ demo->fp##entrypoint = \
+ (PFN_vk##entrypoint)vkGetDeviceProcAddr(dev, "vk" #entrypoint); \
+ if (demo->fp##entrypoint == NULL) { \
+ ERR_EXIT("vkGetDeviceProcAddr failed to find vk" #entrypoint, \
+ "vkGetDeviceProcAddr Failure"); \
+ } \
+ }
+
+struct texture_object {
+ VkSampler sampler;
+
+ VkImage image;
+ VkImageLayout imageLayout;
+
+ VkDeviceMemory mem;
+ VkImageView view;
+ int32_t tex_width, tex_height;
+};
+
+static int validation_error = 0;
+
+VKAPI_ATTR VkBool32 VKAPI_CALL
+dbgFunc(VkFlags msgFlags, VkDebugReportObjectTypeEXT objType,
+ uint64_t srcObject, size_t location, int32_t msgCode,
+ const char *pLayerPrefix, const char *pMsg, void *pUserData) {
+ char *message = (char *)malloc(strlen(pMsg) + 100);
+
+ assert(message);
+
+ validation_error = 1;
+
+ if (msgFlags & VK_DEBUG_REPORT_ERROR_BIT_EXT) {
+ sprintf(message, "ERROR: [%s] Code %d : %s", pLayerPrefix, msgCode,
+ pMsg);
+ } else if (msgFlags & VK_DEBUG_REPORT_WARNING_BIT_EXT) {
+ sprintf(message, "WARNING: [%s] Code %d : %s", pLayerPrefix, msgCode,
+ pMsg);
+ } else {
+ return false;
+ }
+
+#ifdef _WIN32
+ MessageBox(NULL, message, "Alert", MB_OK);
+#else
+ printf("%s\n", message);
+ fflush(stdout);
+#endif
+ free(message);
+
+ /*
+ * false indicates that layer should not bail-out of an
+ * API call that had validation failures. This may mean that the
+ * app dies inside the driver due to invalid parameter(s).
+ * That's what would happen without validation layers, so we'll
+ * keep that behavior here.
+ */
+ return false;
+}
+
+VKAPI_ATTR VkBool32 VKAPI_CALL
+BreakCallback(VkFlags msgFlags, VkDebugReportObjectTypeEXT objType,
+ uint64_t srcObject, size_t location, int32_t msgCode,
+ const char *pLayerPrefix, const char *pMsg,
+ void *pUserData) {
+#ifndef WIN32
+ raise(SIGTRAP);
+#else
+ DebugBreak();
+#endif
+
+ return false;
+}
+
+typedef struct _SwapchainBuffers {
+ VkImage image;
+ VkCommandBuffer cmd;
+ VkImageView view;
+} SwapchainBuffers;
+
+struct demo {
+#ifdef _WIN32
+#define APP_NAME_STR_LEN 80
+ HINSTANCE connection; // hInstance - Windows Instance
+ char name[APP_NAME_STR_LEN]; // Name to put on the window/icon
+ HWND window; // hWnd - window handle
+#else // _WIN32
+ xcb_connection_t *connection;
+ xcb_screen_t *screen;
+ xcb_window_t window;
+ xcb_intern_atom_reply_t *atom_wm_delete_window;
+#endif // _WIN32
+ VkSurfaceKHR surface;
+ bool prepared;
+ bool use_staging_buffer;
+
+ VkInstance inst;
+ VkPhysicalDevice gpu;
+ VkDevice device;
+ VkQueue queue;
+ VkPhysicalDeviceProperties gpu_props;
+ VkQueueFamilyProperties *queue_props;
+ uint32_t graphics_queue_node_index;
+
+ uint32_t enabled_extension_count;
+ uint32_t enabled_layer_count;
+ char *extension_names[64];
+ char *device_validation_layers[64];
+
+ int width, height;
+ VkFormat format;
+ VkColorSpaceKHR color_space;
+
+ PFN_vkGetPhysicalDeviceSurfaceSupportKHR
+ fpGetPhysicalDeviceSurfaceSupportKHR;
+ PFN_vkGetPhysicalDeviceSurfaceCapabilitiesKHR
+ fpGetPhysicalDeviceSurfaceCapabilitiesKHR;
+ PFN_vkGetPhysicalDeviceSurfaceFormatsKHR
+ fpGetPhysicalDeviceSurfaceFormatsKHR;
+ PFN_vkGetPhysicalDeviceSurfacePresentModesKHR
+ fpGetPhysicalDeviceSurfacePresentModesKHR;
+ PFN_vkCreateSwapchainKHR fpCreateSwapchainKHR;
+ PFN_vkDestroySwapchainKHR fpDestroySwapchainKHR;
+ PFN_vkGetSwapchainImagesKHR fpGetSwapchainImagesKHR;
+ PFN_vkAcquireNextImageKHR fpAcquireNextImageKHR;
+ PFN_vkQueuePresentKHR fpQueuePresentKHR;
+ uint32_t swapchainImageCount;
+ VkSwapchainKHR swapchain;
+ SwapchainBuffers *buffers;
+
+ VkCommandPool cmd_pool;
+
+ struct {
+ VkFormat format;
+
+ VkImage image;
+ VkDeviceMemory mem;
+ VkImageView view;
+ } depth;
+
+ struct texture_object textures[DEMO_TEXTURE_COUNT];
+
+ struct {
+ VkBuffer buf;
+ VkDeviceMemory mem;
+
+ VkPipelineVertexInputStateCreateInfo vi;
+ VkVertexInputBindingDescription vi_bindings[1];
+ VkVertexInputAttributeDescription vi_attrs[2];
+ } vertices;
+
+ VkCommandBuffer setup_cmd; // Command Buffer for initialization commands
+ VkCommandBuffer draw_cmd; // Command Buffer for drawing commands
+ VkPipelineLayout pipeline_layout;
+ VkDescriptorSetLayout desc_layout;
+ VkPipelineCache pipelineCache;
+ VkRenderPass render_pass;
+ VkPipeline pipeline;
+
+ VkShaderModule vert_shader_module;
+ VkShaderModule frag_shader_module;
+
+ VkDescriptorPool desc_pool;
+ VkDescriptorSet desc_set;
+
+ VkFramebuffer *framebuffers;
+
+ VkPhysicalDeviceMemoryProperties memory_properties;
+
+ int32_t curFrame;
+ int32_t frameCount;
+ bool validate;
+ bool use_break;
+ PFN_vkCreateDebugReportCallbackEXT CreateDebugReportCallback;
+ PFN_vkDestroyDebugReportCallbackEXT DestroyDebugReportCallback;
+ VkDebugReportCallbackEXT msg_callback;
+ PFN_vkDebugReportMessageEXT DebugReportMessage;
+
+ float depthStencil;
+ float depthIncrement;
+
+ bool quit;
+ uint32_t current_buffer;
+ uint32_t queue_count;
+};
+
+// Forward declaration:
+static void demo_resize(struct demo *demo);
+
+static bool memory_type_from_properties(struct demo *demo, uint32_t typeBits,
+ VkFlags requirements_mask,
+ uint32_t *typeIndex) {
+ uint32_t i;
+
+ // Search memtypes to find first index with those properties
+ for (i = 0; i < 32; i++) {
+ if ((typeBits & 1) == 1) {
+ // Type is available, does it match user properties?
+ if ((demo->memory_properties.memoryTypes[i].propertyFlags &
+ requirements_mask) == requirements_mask) {
+ *typeIndex = i;
+ return true;
+ }
+ }
+ typeBits >>= 1;
+ }
+ // No memory types matched, return failure
+ return false;
+}
+
+static void demo_flush_init_cmd(struct demo *demo) {
+ VkResult U_ASSERT_ONLY err;
+
+ if (demo->setup_cmd == VK_NULL_HANDLE)
+ return;
+
+ err = vkEndCommandBuffer(demo->setup_cmd);
+ assert(!err);
+
+ const VkCommandBuffer cmd_bufs[] = {demo->setup_cmd};
+ VkFence nullFence = {VK_NULL_HANDLE};
+ VkSubmitInfo submit_info = {.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO,
+ .pNext = NULL,
+ .waitSemaphoreCount = 0,
+ .pWaitSemaphores = NULL,
+ .pWaitDstStageMask = NULL,
+ .commandBufferCount = 1,
+ .pCommandBuffers = cmd_bufs,
+ .signalSemaphoreCount = 0,
+ .pSignalSemaphores = NULL};
+
+ err = vkQueueSubmit(demo->queue, 1, &submit_info, nullFence);
+ assert(!err);
+
+ err = vkQueueWaitIdle(demo->queue);
+ assert(!err);
+
+ vkFreeCommandBuffers(demo->device, demo->cmd_pool, 1, cmd_bufs);
+ demo->setup_cmd = VK_NULL_HANDLE;
+}
+
+static void demo_set_image_layout(struct demo *demo, VkImage image,
+ VkImageAspectFlags aspectMask,
+ VkImageLayout old_image_layout,
+ VkImageLayout new_image_layout,
+ VkAccessFlagBits srcAccessMask) {
+
+ VkResult U_ASSERT_ONLY err;
+
+ if (demo->setup_cmd == VK_NULL_HANDLE) {
+ const VkCommandBufferAllocateInfo cmd = {
+ .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO,
+ .pNext = NULL,
+ .commandPool = demo->cmd_pool,
+ .level = VK_COMMAND_BUFFER_LEVEL_PRIMARY,
+ .commandBufferCount = 1,
+ };
+
+ err = vkAllocateCommandBuffers(demo->device, &cmd, &demo->setup_cmd);
+ assert(!err);
+
+ VkCommandBufferInheritanceInfo cmd_buf_hinfo = {
+ .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_INHERITANCE_INFO,
+ .pNext = NULL,
+ .renderPass = VK_NULL_HANDLE,
+ .subpass = 0,
+ .framebuffer = VK_NULL_HANDLE,
+ .occlusionQueryEnable = VK_FALSE,
+ .queryFlags = 0,
+ .pipelineStatistics = 0,
+ };
+ VkCommandBufferBeginInfo cmd_buf_info = {
+ .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO,
+ .pNext = NULL,
+ .flags = 0,
+ .pInheritanceInfo = &cmd_buf_hinfo,
+ };
+ err = vkBeginCommandBuffer(demo->setup_cmd, &cmd_buf_info);
+ assert(!err);
+ }
+
+ VkImageMemoryBarrier image_memory_barrier = {
+ .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
+ .pNext = NULL,
+ .srcAccessMask = srcAccessMask,
+ .dstAccessMask = 0,
+ .oldLayout = old_image_layout,
+ .newLayout = new_image_layout,
+ .image = image,
+ .subresourceRange = {aspectMask, 0, 1, 0, 1}};
+
+ if (new_image_layout == VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL) {
+ /* Make sure anything that was copying from this image has completed */
+ image_memory_barrier.dstAccessMask = VK_ACCESS_TRANSFER_READ_BIT;
+ }
+
+ if (new_image_layout == VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL) {
+ image_memory_barrier.dstAccessMask =
+ VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
+ }
+
+ if (new_image_layout == VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL) {
+ image_memory_barrier.dstAccessMask =
+ VK_ACCESS_DEPTH_STENCIL_ATTACHMENT_WRITE_BIT;
+ }
+
+ if (new_image_layout == VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL) {
+ /* Make sure any Copy or CPU writes to image are flushed */
+ image_memory_barrier.dstAccessMask =
+ VK_ACCESS_SHADER_READ_BIT | VK_ACCESS_INPUT_ATTACHMENT_READ_BIT;
+ }
+
+ VkImageMemoryBarrier *pmemory_barrier = &image_memory_barrier;
+
+ VkPipelineStageFlags src_stages = VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT;
+ VkPipelineStageFlags dest_stages = VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT;
+
+ vkCmdPipelineBarrier(demo->setup_cmd, src_stages, dest_stages, 0, 0, NULL,
+ 0, NULL, 1, pmemory_barrier);
+}
+
+static void demo_draw_build_cmd(struct demo *demo) {
+ const VkCommandBufferInheritanceInfo cmd_buf_hinfo = {
+ .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_INHERITANCE_INFO,
+ .pNext = NULL,
+ .renderPass = VK_NULL_HANDLE,
+ .subpass = 0,
+ .framebuffer = VK_NULL_HANDLE,
+ .occlusionQueryEnable = VK_FALSE,
+ .queryFlags = 0,
+ .pipelineStatistics = 0,
+ };
+ const VkCommandBufferBeginInfo cmd_buf_info = {
+ .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO,
+ .pNext = NULL,
+ .flags = 0,
+ .pInheritanceInfo = &cmd_buf_hinfo,
+ };
+ const VkClearValue clear_values[2] = {
+ [0] = {.color.float32 = {0.2f, 0.2f, 0.2f, 0.2f}},
+ [1] = {.depthStencil = {demo->depthStencil, 0}},
+ };
+ const VkRenderPassBeginInfo rp_begin = {
+ .sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO,
+ .pNext = NULL,
+ .renderPass = demo->render_pass,
+ .framebuffer = demo->framebuffers[demo->current_buffer],
+ .renderArea.offset.x = 0,
+ .renderArea.offset.y = 0,
+ .renderArea.extent.width = demo->width,
+ .renderArea.extent.height = demo->height,
+ .clearValueCount = 2,
+ .pClearValues = clear_values,
+ };
+ VkResult U_ASSERT_ONLY err;
+
+ err = vkBeginCommandBuffer(demo->draw_cmd, &cmd_buf_info);
+ assert(!err);
+
+ vkCmdBeginRenderPass(demo->draw_cmd, &rp_begin, VK_SUBPASS_CONTENTS_INLINE);
+ vkCmdBindPipeline(demo->draw_cmd, VK_PIPELINE_BIND_POINT_GRAPHICS,
+ demo->pipeline);
+ vkCmdBindDescriptorSets(demo->draw_cmd, VK_PIPELINE_BIND_POINT_GRAPHICS,
+ demo->pipeline_layout, 0, 1, &demo->desc_set, 0,
+ NULL);
+
+ VkViewport viewport;
+ memset(&viewport, 0, sizeof(viewport));
+ viewport.height = (float)demo->height;
+ viewport.width = (float)demo->width;
+ viewport.minDepth = (float)0.0f;
+ viewport.maxDepth = (float)1.0f;
+ vkCmdSetViewport(demo->draw_cmd, 0, 1, &viewport);
+
+ VkRect2D scissor;
+ memset(&scissor, 0, sizeof(scissor));
+ scissor.extent.width = demo->width;
+ scissor.extent.height = demo->height;
+ scissor.offset.x = 0;
+ scissor.offset.y = 0;
+ vkCmdSetScissor(demo->draw_cmd, 0, 1, &scissor);
+
+ VkDeviceSize offsets[1] = {0};
+ vkCmdBindVertexBuffers(demo->draw_cmd, VERTEX_BUFFER_BIND_ID, 1,
+ &demo->vertices.buf, offsets);
+
+ vkCmdDraw(demo->draw_cmd, 3, 1, 0, 0);
+ vkCmdEndRenderPass(demo->draw_cmd);
+
+ VkImageMemoryBarrier prePresentBarrier = {
+ .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
+ .pNext = NULL,
+ .srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT,
+ .dstAccessMask = VK_ACCESS_MEMORY_READ_BIT,
+ .oldLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
+ .newLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR,
+ .srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
+ .dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
+ .subresourceRange = {VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1}};
+
+ prePresentBarrier.image = demo->buffers[demo->current_buffer].image;
+ VkImageMemoryBarrier *pmemory_barrier = &prePresentBarrier;
+ vkCmdPipelineBarrier(demo->draw_cmd, VK_PIPELINE_STAGE_ALL_COMMANDS_BIT,
+ VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT, 0, 0, NULL, 0,
+ NULL, 1, pmemory_barrier);
+
+ err = vkEndCommandBuffer(demo->draw_cmd);
+ assert(!err);
+}
+
+static void demo_draw(struct demo *demo) {
+ VkResult U_ASSERT_ONLY err;
+ VkSemaphore presentCompleteSemaphore;
+ VkSemaphoreCreateInfo presentCompleteSemaphoreCreateInfo = {
+ .sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO,
+ .pNext = NULL,
+ .flags = 0,
+ };
+
+ err = vkCreateSemaphore(demo->device, &presentCompleteSemaphoreCreateInfo,
+ NULL, &presentCompleteSemaphore);
+ assert(!err);
+
+ // Get the index of the next available swapchain image:
+ err = demo->fpAcquireNextImageKHR(demo->device, demo->swapchain, UINT64_MAX,
+ presentCompleteSemaphore,
+ (VkFence)0, // TODO: Show use of fence
+ &demo->current_buffer);
+ if (err == VK_ERROR_OUT_OF_DATE_KHR) {
+ // demo->swapchain is out of date (e.g. the window was resized) and
+ // must be recreated:
+ demo_resize(demo);
+ demo_draw(demo);
+ vkDestroySemaphore(demo->device, presentCompleteSemaphore, NULL);
+ return;
+ } else if (err == VK_SUBOPTIMAL_KHR) {
+ // demo->swapchain is not as optimal as it could be, but the platform's
+ // presentation engine will still present the image correctly.
+ } else {
+ assert(!err);
+ }
+
+ // Assume the command buffer has been run on current_buffer before so
+ // we need to set the image layout back to COLOR_ATTACHMENT_OPTIMAL
+ demo_set_image_layout(demo, demo->buffers[demo->current_buffer].image,
+ VK_IMAGE_ASPECT_COLOR_BIT,
+ VK_IMAGE_LAYOUT_PRESENT_SRC_KHR,
+ VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
+ 0);
+ demo_flush_init_cmd(demo);
+
+ // Wait for the present complete semaphore to be signaled to ensure
+ // that the image won't be rendered to until the presentation
+ // engine has fully released ownership to the application, and it is
+ // okay to render to the image.
+
+ // FIXME/TODO: DEAL WITH VK_IMAGE_LAYOUT_PRESENT_SRC_KHR
+ demo_draw_build_cmd(demo);
+ VkFence nullFence = VK_NULL_HANDLE;
+ VkPipelineStageFlags pipe_stage_flags =
+ VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
+ VkSubmitInfo submit_info = {.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO,
+ .pNext = NULL,
+ .waitSemaphoreCount = 1,
+ .pWaitSemaphores = &presentCompleteSemaphore,
+ .pWaitDstStageMask = &pipe_stage_flags,
+ .commandBufferCount = 1,
+ .pCommandBuffers = &demo->draw_cmd,
+ .signalSemaphoreCount = 0,
+ .pSignalSemaphores = NULL};
+
+ err = vkQueueSubmit(demo->queue, 1, &submit_info, nullFence);
+ assert(!err);
+
+ VkPresentInfoKHR present = {
+ .sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR,
+ .pNext = NULL,
+ .swapchainCount = 1,
+ .pSwapchains = &demo->swapchain,
+ .pImageIndices = &demo->current_buffer,
+ };
+
+ // TBD/TODO: SHOULD THE "present" PARAMETER BE "const" IN THE HEADER?
+ err = demo->fpQueuePresentKHR(demo->queue, &present);
+ if (err == VK_ERROR_OUT_OF_DATE_KHR) {
+ // demo->swapchain is out of date (e.g. the window was resized) and
+ // must be recreated:
+ demo_resize(demo);
+ } else if (err == VK_SUBOPTIMAL_KHR) {
+ // demo->swapchain is not as optimal as it could be, but the platform's
+ // presentation engine will still present the image correctly.
+ } else {
+ assert(!err);
+ }
+
+ err = vkQueueWaitIdle(demo->queue);
+ assert(err == VK_SUCCESS);
+
+ vkDestroySemaphore(demo->device, presentCompleteSemaphore, NULL);
+}
+
+static void demo_prepare_buffers(struct demo *demo) {
+ VkResult U_ASSERT_ONLY err;
+ VkSwapchainKHR oldSwapchain = demo->swapchain;
+
+ // Check the surface capabilities and formats
+ VkSurfaceCapabilitiesKHR surfCapabilities;
+ err = demo->fpGetPhysicalDeviceSurfaceCapabilitiesKHR(
+ demo->gpu, demo->surface, &surfCapabilities);
+ assert(!err);
+
+ uint32_t presentModeCount;
+ err = demo->fpGetPhysicalDeviceSurfacePresentModesKHR(
+ demo->gpu, demo->surface, &presentModeCount, NULL);
+ assert(!err);
+ VkPresentModeKHR *presentModes =
+ (VkPresentModeKHR *)malloc(presentModeCount * sizeof(VkPresentModeKHR));
+ assert(presentModes);
+ err = demo->fpGetPhysicalDeviceSurfacePresentModesKHR(
+ demo->gpu, demo->surface, &presentModeCount, presentModes);
+ assert(!err);
+
+ VkExtent2D swapchainExtent;
+ // width and height are either both -1, or both not -1.
+ if (surfCapabilities.currentExtent.width == (uint32_t)-1) {
+ // If the surface size is undefined, the size is set to
+ // the size of the images requested.
+ swapchainExtent.width = demo->width;
+ swapchainExtent.height = demo->height;
+ } else {
+ // If the surface size is defined, the swap chain size must match
+ swapchainExtent = surfCapabilities.currentExtent;
+ demo->width = surfCapabilities.currentExtent.width;
+ demo->height = surfCapabilities.currentExtent.height;
+ }
+
+ VkPresentModeKHR swapchainPresentMode = VK_PRESENT_MODE_FIFO_KHR;
+
+ // Determine the number of VkImage's to use in the swap chain (we desire to
+ // own only 1 image at a time, besides the images being displayed and
+ // queued for display):
+ uint32_t desiredNumberOfSwapchainImages =
+ surfCapabilities.minImageCount + 1;
+ if ((surfCapabilities.maxImageCount > 0) &&
+ (desiredNumberOfSwapchainImages > surfCapabilities.maxImageCount)) {
+ // Application must settle for fewer images than desired:
+ desiredNumberOfSwapchainImages = surfCapabilities.maxImageCount;
+ }
+
+ VkSurfaceTransformFlagsKHR preTransform;
+ if (surfCapabilities.supportedTransforms &
+ VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR) {
+ preTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
+ } else {
+ preTransform = surfCapabilities.currentTransform;
+ }
+
+ const VkSwapchainCreateInfoKHR swapchain = {
+ .sType = VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR,
+ .pNext = NULL,
+ .surface = demo->surface,
+ .minImageCount = desiredNumberOfSwapchainImages,
+ .imageFormat = demo->format,
+ .imageColorSpace = demo->color_space,
+ .imageExtent =
+ {
+ .width = swapchainExtent.width, .height = swapchainExtent.height,
+ },
+ .imageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT,
+ .preTransform = preTransform,
+ .compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR,
+ .imageArrayLayers = 1,
+ .imageSharingMode = VK_SHARING_MODE_EXCLUSIVE,
+ .queueFamilyIndexCount = 0,
+ .pQueueFamilyIndices = NULL,
+ .presentMode = swapchainPresentMode,
+ .oldSwapchain = oldSwapchain,
+ .clipped = true,
+ };
+ uint32_t i;
+
+ err = demo->fpCreateSwapchainKHR(demo->device, &swapchain, NULL,
+ &demo->swapchain);
+ assert(!err);
+
+ // If we just re-created an existing swapchain, we should destroy the old
+ // swapchain at this point.
+ // Note: destroying the swapchain also cleans up all its associated
+ // presentable images once the platform is done with them.
+ if (oldSwapchain != VK_NULL_HANDLE) {
+ demo->fpDestroySwapchainKHR(demo->device, oldSwapchain, NULL);
+ }
+
+ err = demo->fpGetSwapchainImagesKHR(demo->device, demo->swapchain,
+ &demo->swapchainImageCount, NULL);
+ assert(!err);
+
+ VkImage *swapchainImages =
+ (VkImage *)malloc(demo->swapchainImageCount * sizeof(VkImage));
+ assert(swapchainImages);
+ err = demo->fpGetSwapchainImagesKHR(demo->device, demo->swapchain,
+ &demo->swapchainImageCount,
+ swapchainImages);
+ assert(!err);
+
+ demo->buffers = (SwapchainBuffers *)malloc(sizeof(SwapchainBuffers) *
+ demo->swapchainImageCount);
+ assert(demo->buffers);
+
+ for (i = 0; i < demo->swapchainImageCount; i++) {
+ VkImageViewCreateInfo color_attachment_view = {
+ .sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO,
+ .pNext = NULL,
+ .format = demo->format,
+ .components =
+ {
+ .r = VK_COMPONENT_SWIZZLE_R,
+ .g = VK_COMPONENT_SWIZZLE_G,
+ .b = VK_COMPONENT_SWIZZLE_B,
+ .a = VK_COMPONENT_SWIZZLE_A,
+ },
+ .subresourceRange = {.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
+ .baseMipLevel = 0,
+ .levelCount = 1,
+ .baseArrayLayer = 0,
+ .layerCount = 1},
+ .viewType = VK_IMAGE_VIEW_TYPE_2D,
+ .flags = 0,
+ };
+
+ demo->buffers[i].image = swapchainImages[i];
+
+ // Render loop will expect image to have been used before and in
+ // VK_IMAGE_LAYOUT_PRESENT_SRC_KHR
+ // layout and will change to COLOR_ATTACHMENT_OPTIMAL, so init the image
+ // to that state
+ demo_set_image_layout(
+ demo, demo->buffers[i].image, VK_IMAGE_ASPECT_COLOR_BIT,
+ VK_IMAGE_LAYOUT_UNDEFINED, VK_IMAGE_LAYOUT_PRESENT_SRC_KHR,
+ 0);
+
+ color_attachment_view.image = demo->buffers[i].image;
+
+ err = vkCreateImageView(demo->device, &color_attachment_view, NULL,
+ &demo->buffers[i].view);
+ assert(!err);
+ }
+
+ demo->current_buffer = 0;
+
+ if (NULL != presentModes) {
+ free(presentModes);
+ }
+}
+
+static void demo_prepare_depth(struct demo *demo) {
+ const VkFormat depth_format = VK_FORMAT_D16_UNORM;
+ const VkImageCreateInfo image = {
+ .sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
+ .pNext = NULL,
+ .imageType = VK_IMAGE_TYPE_2D,
+ .format = depth_format,
+ .extent = {demo->width, demo->height, 1},
+ .mipLevels = 1,
+ .arrayLayers = 1,
+ .samples = VK_SAMPLE_COUNT_1_BIT,
+ .tiling = VK_IMAGE_TILING_OPTIMAL,
+ .usage = VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT,
+ .flags = 0,
+ };
+ VkMemoryAllocateInfo mem_alloc = {
+ .sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO,
+ .pNext = NULL,
+ .allocationSize = 0,
+ .memoryTypeIndex = 0,
+ };
+ VkImageViewCreateInfo view = {
+ .sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO,
+ .pNext = NULL,
+ .image = VK_NULL_HANDLE,
+ .format = depth_format,
+ .subresourceRange = {.aspectMask = VK_IMAGE_ASPECT_DEPTH_BIT,
+ .baseMipLevel = 0,
+ .levelCount = 1,
+ .baseArrayLayer = 0,
+ .layerCount = 1},
+ .flags = 0,
+ .viewType = VK_IMAGE_VIEW_TYPE_2D,
+ };
+
+ VkMemoryRequirements mem_reqs;
+ VkResult U_ASSERT_ONLY err;
+ bool U_ASSERT_ONLY pass;
+
+ demo->depth.format = depth_format;
+
+ /* create image */
+ err = vkCreateImage(demo->device, &image, NULL, &demo->depth.image);
+ assert(!err);
+
+ /* get memory requirements for this object */
+ vkGetImageMemoryRequirements(demo->device, demo->depth.image, &mem_reqs);
+
+ /* select memory size and type */
+ mem_alloc.allocationSize = mem_reqs.size;
+ pass = memory_type_from_properties(demo, mem_reqs.memoryTypeBits,
+ 0, /* No requirements */
+ &mem_alloc.memoryTypeIndex);
+ assert(pass);
+
+ /* allocate memory */
+ err = vkAllocateMemory(demo->device, &mem_alloc, NULL, &demo->depth.mem);
+ assert(!err);
+
+ /* bind memory */
+ err =
+ vkBindImageMemory(demo->device, demo->depth.image, demo->depth.mem, 0);
+ assert(!err);
+
+ demo_set_image_layout(demo, demo->depth.image, VK_IMAGE_ASPECT_DEPTH_BIT,
+ VK_IMAGE_LAYOUT_UNDEFINED,
+ VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL,
+ 0);
+
+ /* create image view */
+ view.image = demo->depth.image;
+ err = vkCreateImageView(demo->device, &view, NULL, &demo->depth.view);
+ assert(!err);
+}
+
+static void
+demo_prepare_texture_image(struct demo *demo, const uint32_t *tex_colors,
+ struct texture_object *tex_obj, VkImageTiling tiling,
+ VkImageUsageFlags usage, VkFlags required_props) {
+ const VkFormat tex_format = VK_FORMAT_B8G8R8A8_UNORM;
+ const int32_t tex_width = 2;
+ const int32_t tex_height = 2;
+ VkResult U_ASSERT_ONLY err;
+ bool U_ASSERT_ONLY pass;
+
+ tex_obj->tex_width = tex_width;
+ tex_obj->tex_height = tex_height;
+
+ const VkImageCreateInfo image_create_info = {
+ .sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
+ .pNext = NULL,
+ .imageType = VK_IMAGE_TYPE_2D,
+ .format = tex_format,
+ .extent = {tex_width, tex_height, 1},
+ .mipLevels = 1,
+ .arrayLayers = 1,
+ .samples = VK_SAMPLE_COUNT_1_BIT,
+ .tiling = tiling,
+ .usage = usage,
+ .flags = 0,
+ .initialLayout = VK_IMAGE_LAYOUT_PREINITIALIZED
+ };
+ VkMemoryAllocateInfo mem_alloc = {
+ .sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO,
+ .pNext = NULL,
+ .allocationSize = 0,
+ .memoryTypeIndex = 0,
+ };
+
+ VkMemoryRequirements mem_reqs;
+
+ err =
+ vkCreateImage(demo->device, &image_create_info, NULL, &tex_obj->image);
+ assert(!err);
+
+ vkGetImageMemoryRequirements(demo->device, tex_obj->image, &mem_reqs);
+
+ mem_alloc.allocationSize = mem_reqs.size;
+ pass =
+ memory_type_from_properties(demo, mem_reqs.memoryTypeBits,
+ required_props, &mem_alloc.memoryTypeIndex);
+ assert(pass);
+
+ /* allocate memory */
+ err = vkAllocateMemory(demo->device, &mem_alloc, NULL, &tex_obj->mem);
+ assert(!err);
+
+ /* bind memory */
+ err = vkBindImageMemory(demo->device, tex_obj->image, tex_obj->mem, 0);
+ assert(!err);
+
+ if (required_props & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) {
+ const VkImageSubresource subres = {
+ .aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
+ .mipLevel = 0,
+ .arrayLayer = 0,
+ };
+ VkSubresourceLayout layout;
+ void *data;
+ int32_t x, y;
+
+ vkGetImageSubresourceLayout(demo->device, tex_obj->image, &subres,
+ &layout);
+
+ err = vkMapMemory(demo->device, tex_obj->mem, 0,
+ mem_alloc.allocationSize, 0, &data);
+ assert(!err);
+
+ for (y = 0; y < tex_height; y++) {
+ uint32_t *row = (uint32_t *)((char *)data + layout.rowPitch * y);
+ for (x = 0; x < tex_width; x++)
+ row[x] = tex_colors[(x & 1) ^ (y & 1)];
+ }
+
+ vkUnmapMemory(demo->device, tex_obj->mem);
+ }
+
+ tex_obj->imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
+ demo_set_image_layout(demo, tex_obj->image, VK_IMAGE_ASPECT_COLOR_BIT,
+ VK_IMAGE_LAYOUT_PREINITIALIZED, tex_obj->imageLayout,
+ VK_ACCESS_HOST_WRITE_BIT);
+ /* setting the image layout does not reference the actual memory so no need
+ * to add a mem ref */
+}
+
+static void demo_destroy_texture_image(struct demo *demo,
+ struct texture_object *tex_obj) {
+ /* clean up staging resources */
+ vkDestroyImage(demo->device, tex_obj->image, NULL);
+ vkFreeMemory(demo->device, tex_obj->mem, NULL);
+}
+
+static void demo_prepare_textures(struct demo *demo) {
+ const VkFormat tex_format = VK_FORMAT_B8G8R8A8_UNORM;
+ VkFormatProperties props;
+ const uint32_t tex_colors[DEMO_TEXTURE_COUNT][2] = {
+ {0xffff0000, 0xff00ff00},
+ };
+ uint32_t i;
+ VkResult U_ASSERT_ONLY err;
+
+ vkGetPhysicalDeviceFormatProperties(demo->gpu, tex_format, &props);
+
+ for (i = 0; i < DEMO_TEXTURE_COUNT; i++) {
+ if ((props.linearTilingFeatures &
+ VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT) &&
+ !demo->use_staging_buffer) {
+ /* Device can texture using linear textures */
+ demo_prepare_texture_image(demo, tex_colors[i], &demo->textures[i],
+ VK_IMAGE_TILING_LINEAR,
+ VK_IMAGE_USAGE_SAMPLED_BIT,
+ VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT);
+ } else if (props.optimalTilingFeatures &
+ VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT) {
+ /* Must use staging buffer to copy linear texture to optimized */
+ struct texture_object staging_texture;
+
+ memset(&staging_texture, 0, sizeof(staging_texture));
+ demo_prepare_texture_image(demo, tex_colors[i], &staging_texture,
+ VK_IMAGE_TILING_LINEAR,
+ VK_IMAGE_USAGE_TRANSFER_SRC_BIT,
+ VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT);
+
+ demo_prepare_texture_image(
+ demo, tex_colors[i], &demo->textures[i],
+ VK_IMAGE_TILING_OPTIMAL,
+ (VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT),
+ VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
+
+ demo_set_image_layout(demo, staging_texture.image,
+ VK_IMAGE_ASPECT_COLOR_BIT,
+ staging_texture.imageLayout,
+ VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
+ 0);
+
+ demo_set_image_layout(demo, demo->textures[i].image,
+ VK_IMAGE_ASPECT_COLOR_BIT,
+ demo->textures[i].imageLayout,
+ VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
+ 0);
+
+ VkImageCopy copy_region = {
+ .srcSubresource = {VK_IMAGE_ASPECT_COLOR_BIT, 0, 0, 1},
+ .srcOffset = {0, 0, 0},
+ .dstSubresource = {VK_IMAGE_ASPECT_COLOR_BIT, 0, 0, 1},
+ .dstOffset = {0, 0, 0},
+ .extent = {staging_texture.tex_width,
+ staging_texture.tex_height, 1},
+ };
+ vkCmdCopyImage(
+ demo->setup_cmd, staging_texture.image,
+ VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, demo->textures[i].image,
+ VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, ©_region);
+
+ demo_set_image_layout(demo, demo->textures[i].image,
+ VK_IMAGE_ASPECT_COLOR_BIT,
+ VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
+ demo->textures[i].imageLayout,
+ 0);
+
+ demo_flush_init_cmd(demo);
+
+ demo_destroy_texture_image(demo, &staging_texture);
+ } else {
+ /* Can't support VK_FORMAT_B8G8R8A8_UNORM !? */
+ assert(!"No support for B8G8R8A8_UNORM as texture image format");
+ }
+
+ const VkSamplerCreateInfo sampler = {
+ .sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO,
+ .pNext = NULL,
+ .magFilter = VK_FILTER_NEAREST,
+ .minFilter = VK_FILTER_NEAREST,
+ .mipmapMode = VK_SAMPLER_MIPMAP_MODE_NEAREST,
+ .addressModeU = VK_SAMPLER_ADDRESS_MODE_REPEAT,
+ .addressModeV = VK_SAMPLER_ADDRESS_MODE_REPEAT,
+ .addressModeW = VK_SAMPLER_ADDRESS_MODE_REPEAT,
+ .mipLodBias = 0.0f,
+ .anisotropyEnable = VK_FALSE,
+ .maxAnisotropy = 1,
+ .compareOp = VK_COMPARE_OP_NEVER,
+ .minLod = 0.0f,
+ .maxLod = 0.0f,
+ .borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE,
+ .unnormalizedCoordinates = VK_FALSE,
+ };
+ VkImageViewCreateInfo view = {
+ .sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO,
+ .pNext = NULL,
+ .image = VK_NULL_HANDLE,
+ .viewType = VK_IMAGE_VIEW_TYPE_2D,
+ .format = tex_format,
+ .components =
+ {
+ VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_G,
+ VK_COMPONENT_SWIZZLE_B, VK_COMPONENT_SWIZZLE_A,
+ },
+ .subresourceRange = {VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1},
+ .flags = 0,
+ };
+
+ /* create sampler */
+ err = vkCreateSampler(demo->device, &sampler, NULL,
+ &demo->textures[i].sampler);
+ assert(!err);
+
+ /* create image view */
+ view.image = demo->textures[i].image;
+ err = vkCreateImageView(demo->device, &view, NULL,
+ &demo->textures[i].view);
+ assert(!err);
+ }
+}
+
+static void demo_prepare_vertices(struct demo *demo) {
+ // clang-format off
+ const float vb[3][5] = {
+ /* position texcoord */
+ { -1.0f, -1.0f, 0.25f, 0.0f, 0.0f },
+ { 1.0f, -1.0f, 0.25f, 1.0f, 0.0f },
+ { 0.0f, 1.0f, 1.0f, 0.5f, 1.0f },
+ };
+ // clang-format on
+ const VkBufferCreateInfo buf_info = {
+ .sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,
+ .pNext = NULL,
+ .size = sizeof(vb),
+ .usage = VK_BUFFER_USAGE_VERTEX_BUFFER_BIT,
+ .flags = 0,
+ };
+ VkMemoryAllocateInfo mem_alloc = {
+ .sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO,
+ .pNext = NULL,
+ .allocationSize = 0,
+ .memoryTypeIndex = 0,
+ };
+ VkMemoryRequirements mem_reqs;
+ VkResult U_ASSERT_ONLY err;
+ bool U_ASSERT_ONLY pass;
+ void *data;
+
+ memset(&demo->vertices, 0, sizeof(demo->vertices));
+
+ err = vkCreateBuffer(demo->device, &buf_info, NULL, &demo->vertices.buf);
+ assert(!err);
+
+ vkGetBufferMemoryRequirements(demo->device, demo->vertices.buf, &mem_reqs);
+ assert(!err);
+
+ mem_alloc.allocationSize = mem_reqs.size;
+ pass = memory_type_from_properties(demo, mem_reqs.memoryTypeBits,
+ VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT,
+ &mem_alloc.memoryTypeIndex);
+ assert(pass);
+
+ err = vkAllocateMemory(demo->device, &mem_alloc, NULL, &demo->vertices.mem);
+ assert(!err);
+
+ err = vkMapMemory(demo->device, demo->vertices.mem, 0,
+ mem_alloc.allocationSize, 0, &data);
+ assert(!err);
+
+ memcpy(data, vb, sizeof(vb));
+
+ vkUnmapMemory(demo->device, demo->vertices.mem);
+
+ err = vkBindBufferMemory(demo->device, demo->vertices.buf,
+ demo->vertices.mem, 0);
+ assert(!err);
+
+ demo->vertices.vi.sType =
+ VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO;
+ demo->vertices.vi.pNext = NULL;
+ demo->vertices.vi.vertexBindingDescriptionCount = 1;
+ demo->vertices.vi.pVertexBindingDescriptions = demo->vertices.vi_bindings;
+ demo->vertices.vi.vertexAttributeDescriptionCount = 2;
+ demo->vertices.vi.pVertexAttributeDescriptions = demo->vertices.vi_attrs;
+
+ demo->vertices.vi_bindings[0].binding = VERTEX_BUFFER_BIND_ID;
+ demo->vertices.vi_bindings[0].stride = sizeof(vb[0]);
+ demo->vertices.vi_bindings[0].inputRate = VK_VERTEX_INPUT_RATE_VERTEX;
+
+ demo->vertices.vi_attrs[0].binding = VERTEX_BUFFER_BIND_ID;
+ demo->vertices.vi_attrs[0].location = 0;
+ demo->vertices.vi_attrs[0].format = VK_FORMAT_R32G32B32_SFLOAT;
+ demo->vertices.vi_attrs[0].offset = 0;
+
+ demo->vertices.vi_attrs[1].binding = VERTEX_BUFFER_BIND_ID;
+ demo->vertices.vi_attrs[1].location = 1;
+ demo->vertices.vi_attrs[1].format = VK_FORMAT_R32G32_SFLOAT;
+ demo->vertices.vi_attrs[1].offset = sizeof(float) * 3;
+}
+
+static void demo_prepare_descriptor_layout(struct demo *demo) {
+ const VkDescriptorSetLayoutBinding layout_binding = {
+ .binding = 0,
+ .descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
+ .descriptorCount = DEMO_TEXTURE_COUNT,
+ .stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT,
+ .pImmutableSamplers = NULL,
+ };
+ const VkDescriptorSetLayoutCreateInfo descriptor_layout = {
+ .sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO,
+ .pNext = NULL,
+ .bindingCount = 1,
+ .pBindings = &layout_binding,
+ };
+ VkResult U_ASSERT_ONLY err;
+
+ err = vkCreateDescriptorSetLayout(demo->device, &descriptor_layout, NULL,
+ &demo->desc_layout);
+ assert(!err);
+
+ const VkPipelineLayoutCreateInfo pPipelineLayoutCreateInfo = {
+ .sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO,
+ .pNext = NULL,
+ .setLayoutCount = 1,
+ .pSetLayouts = &demo->desc_layout,
+ };
+
+ err = vkCreatePipelineLayout(demo->device, &pPipelineLayoutCreateInfo, NULL,
+ &demo->pipeline_layout);
+ assert(!err);
+}
+
+static void demo_prepare_render_pass(struct demo *demo) {
+ const VkAttachmentDescription attachments[2] = {
+ [0] =
+ {
+ .format = demo->format,
+ .samples = VK_SAMPLE_COUNT_1_BIT,
+ .loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR,
+ .storeOp = VK_ATTACHMENT_STORE_OP_STORE,
+ .stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE,
+ .stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE,
+ .initialLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
+ .finalLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
+ },
+ [1] =
+ {
+ .format = demo->depth.format,
+ .samples = VK_SAMPLE_COUNT_1_BIT,
+ .loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR,
+ .storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE,
+ .stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE,
+ .stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE,
+ .initialLayout =
+ VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL,
+ .finalLayout =
+ VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL,
+ },
+ };
+ const VkAttachmentReference color_reference = {
+ .attachment = 0, .layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
+ };
+ const VkAttachmentReference depth_reference = {
+ .attachment = 1,
+ .layout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL,
+ };
+ const VkSubpassDescription subpass = {
+ .pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS,
+ .flags = 0,
+ .inputAttachmentCount = 0,
+ .pInputAttachments = NULL,
+ .colorAttachmentCount = 1,
+ .pColorAttachments = &color_reference,
+ .pResolveAttachments = NULL,
+ .pDepthStencilAttachment = &depth_reference,
+ .preserveAttachmentCount = 0,
+ .pPreserveAttachments = NULL,
+ };
+ const VkRenderPassCreateInfo rp_info = {
+ .sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO,
+ .pNext = NULL,
+ .attachmentCount = 2,
+ .pAttachments = attachments,
+ .subpassCount = 1,
+ .pSubpasses = &subpass,
+ .dependencyCount = 0,
+ .pDependencies = NULL,
+ };
+ VkResult U_ASSERT_ONLY err;
+
+ err = vkCreateRenderPass(demo->device, &rp_info, NULL, &demo->render_pass);
+ assert(!err);
+}
+
+static VkShaderModule
+demo_prepare_shader_module(struct demo *demo, const void *code, size_t size) {
+ VkShaderModuleCreateInfo moduleCreateInfo;
+ VkShaderModule module;
+ VkResult U_ASSERT_ONLY err;
+
+ moduleCreateInfo.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
+ moduleCreateInfo.pNext = NULL;
+
+ moduleCreateInfo.codeSize = size;
+ moduleCreateInfo.pCode = code;
+ moduleCreateInfo.flags = 0;
+ err = vkCreateShaderModule(demo->device, &moduleCreateInfo, NULL, &module);
+ assert(!err);
+
+ return module;
+}
+
+char *demo_read_spv(const char *filename, size_t *psize) {
+ long int size;
+ void *shader_code;
+ size_t retVal;
+
+ FILE *fp = fopen(filename, "rb");
+ if (!fp)
+ return NULL;
+
+ fseek(fp, 0L, SEEK_END);
+ size = ftell(fp);
+
+ fseek(fp, 0L, SEEK_SET);
+
+ shader_code = malloc(size);
+ retVal = fread(shader_code, size, 1, fp);
+ if (!retVal)
+ return NULL;
+
+ *psize = size;
+
+ fclose(fp);
+ return shader_code;
+}
+
+static VkShaderModule demo_prepare_vs(struct demo *demo) {
+ void *vertShaderCode;
+ size_t size;
+
+ vertShaderCode = demo_read_spv("tri-vert.spv", &size);
+
+ demo->vert_shader_module =
+ demo_prepare_shader_module(demo, vertShaderCode, size);
+
+ free(vertShaderCode);
+
+ return demo->vert_shader_module;
+}
+
+static VkShaderModule demo_prepare_fs(struct demo *demo) {
+ void *fragShaderCode;
+ size_t size;
+
+ fragShaderCode = demo_read_spv("tri-frag.spv", &size);
+
+ demo->frag_shader_module =
+ demo_prepare_shader_module(demo, fragShaderCode, size);
+
+ free(fragShaderCode);
+
+ return demo->frag_shader_module;
+}
+
+static void demo_prepare_pipeline(struct demo *demo) {
+ VkGraphicsPipelineCreateInfo pipeline;
+ VkPipelineCacheCreateInfo pipelineCache;
+
+ VkPipelineVertexInputStateCreateInfo vi;
+ VkPipelineInputAssemblyStateCreateInfo ia;
+ VkPipelineRasterizationStateCreateInfo rs;
+ VkPipelineColorBlendStateCreateInfo cb;
+ VkPipelineDepthStencilStateCreateInfo ds;
+ VkPipelineViewportStateCreateInfo vp;
+ VkPipelineMultisampleStateCreateInfo ms;
+ VkDynamicState dynamicStateEnables[VK_DYNAMIC_STATE_RANGE_SIZE];
+ VkPipelineDynamicStateCreateInfo dynamicState;
+
+ VkResult U_ASSERT_ONLY err;
+
+ memset(dynamicStateEnables, 0, sizeof dynamicStateEnables);
+ memset(&dynamicState, 0, sizeof dynamicState);
+ dynamicState.sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO;
+ dynamicState.pDynamicStates = dynamicStateEnables;
+
+ memset(&pipeline, 0, sizeof(pipeline));
+ pipeline.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
+ pipeline.layout = demo->pipeline_layout;
+
+ vi = demo->vertices.vi;
+
+ memset(&ia, 0, sizeof(ia));
+ ia.sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO;
+ ia.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
+
+ memset(&rs, 0, sizeof(rs));
+ rs.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO;
+ rs.polygonMode = VK_POLYGON_MODE_FILL;
+ rs.cullMode = VK_CULL_MODE_BACK_BIT;
+ rs.frontFace = VK_FRONT_FACE_CLOCKWISE;
+ rs.depthClampEnable = VK_FALSE;
+ rs.rasterizerDiscardEnable = VK_FALSE;
+ rs.depthBiasEnable = VK_FALSE;
+
+ memset(&cb, 0, sizeof(cb));
+ cb.sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO;
+ VkPipelineColorBlendAttachmentState att_state[1];
+ memset(att_state, 0, sizeof(att_state));
+ att_state[0].colorWriteMask = 0xf;
+ att_state[0].blendEnable = VK_FALSE;
+ cb.attachmentCount = 1;
+ cb.pAttachments = att_state;
+
+ memset(&vp, 0, sizeof(vp));
+ vp.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO;
+ vp.viewportCount = 1;
+ dynamicStateEnables[dynamicState.dynamicStateCount++] =
+ VK_DYNAMIC_STATE_VIEWPORT;
+ vp.scissorCount = 1;
+ dynamicStateEnables[dynamicState.dynamicStateCount++] =
+ VK_DYNAMIC_STATE_SCISSOR;
+
+ memset(&ds, 0, sizeof(ds));
+ ds.sType = VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO;
+ ds.depthTestEnable = VK_TRUE;
+ ds.depthWriteEnable = VK_TRUE;
+ ds.depthCompareOp = VK_COMPARE_OP_LESS_OR_EQUAL;
+ ds.depthBoundsTestEnable = VK_FALSE;
+ ds.back.failOp = VK_STENCIL_OP_KEEP;
+ ds.back.passOp = VK_STENCIL_OP_KEEP;
+ ds.back.compareOp = VK_COMPARE_OP_ALWAYS;
+ ds.stencilTestEnable = VK_FALSE;
+ ds.front = ds.back;
+
+ memset(&ms, 0, sizeof(ms));
+ ms.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO;
+ ms.pSampleMask = NULL;
+ ms.rasterizationSamples = VK_SAMPLE_COUNT_1_BIT;
+
+ // Two stages: vs and fs
+ pipeline.stageCount = 2;
+ VkPipelineShaderStageCreateInfo shaderStages[2];
+ memset(&shaderStages, 0, 2 * sizeof(VkPipelineShaderStageCreateInfo));
+
+ shaderStages[0].sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
+ shaderStages[0].stage = VK_SHADER_STAGE_VERTEX_BIT;
+ shaderStages[0].module = demo_prepare_vs(demo);
+ shaderStages[0].pName = "main";
+
+ shaderStages[1].sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
+ shaderStages[1].stage = VK_SHADER_STAGE_FRAGMENT_BIT;
+ shaderStages[1].module = demo_prepare_fs(demo);
+ shaderStages[1].pName = "main";
+
+ pipeline.pVertexInputState = &vi;
+ pipeline.pInputAssemblyState = &ia;
+ pipeline.pRasterizationState = &rs;
+ pipeline.pColorBlendState = &cb;
+ pipeline.pMultisampleState = &ms;
+ pipeline.pViewportState = &vp;
+ pipeline.pDepthStencilState = &ds;
+ pipeline.pStages = shaderStages;
+ pipeline.renderPass = demo->render_pass;
+ pipeline.pDynamicState = &dynamicState;
+
+ memset(&pipelineCache, 0, sizeof(pipelineCache));
+ pipelineCache.sType = VK_STRUCTURE_TYPE_PIPELINE_CACHE_CREATE_INFO;
+
+ err = vkCreatePipelineCache(demo->device, &pipelineCache, NULL,
+ &demo->pipelineCache);
+ assert(!err);
+ err = vkCreateGraphicsPipelines(demo->device, demo->pipelineCache, 1,
+ &pipeline, NULL, &demo->pipeline);
+ assert(!err);
+
+ vkDestroyPipelineCache(demo->device, demo->pipelineCache, NULL);
+
+ vkDestroyShaderModule(demo->device, demo->frag_shader_module, NULL);
+ vkDestroyShaderModule(demo->device, demo->vert_shader_module, NULL);
+}
+
+static void demo_prepare_descriptor_pool(struct demo *demo) {
+ const VkDescriptorPoolSize type_count = {
+ .type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
+ .descriptorCount = DEMO_TEXTURE_COUNT,
+ };
+ const VkDescriptorPoolCreateInfo descriptor_pool = {
+ .sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO,
+ .pNext = NULL,
+ .maxSets = 1,
+ .poolSizeCount = 1,
+ .pPoolSizes = &type_count,
+ };
+ VkResult U_ASSERT_ONLY err;
+
+ err = vkCreateDescriptorPool(demo->device, &descriptor_pool, NULL,
+ &demo->desc_pool);
+ assert(!err);
+}
+
+static void demo_prepare_descriptor_set(struct demo *demo) {
+ VkDescriptorImageInfo tex_descs[DEMO_TEXTURE_COUNT];
+ VkWriteDescriptorSet write;
+ VkResult U_ASSERT_ONLY err;
+ uint32_t i;
+
+ VkDescriptorSetAllocateInfo alloc_info = {
+ .sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO,
+ .pNext = NULL,
+ .descriptorPool = demo->desc_pool,
+ .descriptorSetCount = 1,
+ .pSetLayouts = &demo->desc_layout};
+ err = vkAllocateDescriptorSets(demo->device, &alloc_info, &demo->desc_set);
+ assert(!err);
+
+ memset(&tex_descs, 0, sizeof(tex_descs));
+ for (i = 0; i < DEMO_TEXTURE_COUNT; i++) {
+ tex_descs[i].sampler = demo->textures[i].sampler;
+ tex_descs[i].imageView = demo->textures[i].view;
+ tex_descs[i].imageLayout = VK_IMAGE_LAYOUT_GENERAL;
+ }
+
+ memset(&write, 0, sizeof(write));
+ write.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
+ write.dstSet = demo->desc_set;
+ write.descriptorCount = DEMO_TEXTURE_COUNT;
+ write.descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
+ write.pImageInfo = tex_descs;
+
+ vkUpdateDescriptorSets(demo->device, 1, &write, 0, NULL);
+}
+
+static void demo_prepare_framebuffers(struct demo *demo) {
+ VkImageView attachments[2];
+ attachments[1] = demo->depth.view;
+
+ const VkFramebufferCreateInfo fb_info = {
+ .sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO,
+ .pNext = NULL,
+ .renderPass = demo->render_pass,
+ .attachmentCount = 2,
+ .pAttachments = attachments,
+ .width = demo->width,
+ .height = demo->height,
+ .layers = 1,
+ };
+ VkResult U_ASSERT_ONLY err;
+ uint32_t i;
+
+ demo->framebuffers = (VkFramebuffer *)malloc(demo->swapchainImageCount *
+ sizeof(VkFramebuffer));
+ assert(demo->framebuffers);
+
+ for (i = 0; i < demo->swapchainImageCount; i++) {
+ attachments[0] = demo->buffers[i].view;
+ err = vkCreateFramebuffer(demo->device, &fb_info, NULL,
+ &demo->framebuffers[i]);
+ assert(!err);
+ }
+}
+
+static void demo_prepare(struct demo *demo) {
+ VkResult U_ASSERT_ONLY err;
+
+ const VkCommandPoolCreateInfo cmd_pool_info = {
+ .sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO,
+ .pNext = NULL,
+ .queueFamilyIndex = demo->graphics_queue_node_index,
+ .flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT,
+ };
+ err = vkCreateCommandPool(demo->device, &cmd_pool_info, NULL,
+ &demo->cmd_pool);
+ assert(!err);
+
+ const VkCommandBufferAllocateInfo cmd = {
+ .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO,
+ .pNext = NULL,
+ .commandPool = demo->cmd_pool,
+ .level = VK_COMMAND_BUFFER_LEVEL_PRIMARY,
+ .commandBufferCount = 1,
+ };
+ err = vkAllocateCommandBuffers(demo->device, &cmd, &demo->draw_cmd);
+ assert(!err);
+
+ demo_prepare_buffers(demo);
+ demo_prepare_depth(demo);
+ demo_prepare_textures(demo);
+ demo_prepare_vertices(demo);
+ demo_prepare_descriptor_layout(demo);
+ demo_prepare_render_pass(demo);
+ demo_prepare_pipeline(demo);
+
+ demo_prepare_descriptor_pool(demo);
+ demo_prepare_descriptor_set(demo);
+
+ demo_prepare_framebuffers(demo);
+
+ demo->prepared = true;
+}
+
+#ifdef _WIN32
+static void demo_run(struct demo *demo) {
+ if (!demo->prepared)
+ return;
+ demo_draw(demo);
+
+ if (demo->depthStencil > 0.99f)
+ demo->depthIncrement = -0.001f;
+ if (demo->depthStencil < 0.8f)
+ demo->depthIncrement = 0.001f;
+
+ demo->depthStencil += demo->depthIncrement;
+
+ demo->curFrame++;
+ if (demo->frameCount != INT32_MAX && demo->curFrame == demo->frameCount) {
+ PostQuitMessage(validation_error);
+ }
+}
+
+// On MS-Windows, make this a global, so it's available to WndProc()
+struct demo demo;
+
+// MS-Windows event handling function:
+LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
+ char tmp_str[] = APP_LONG_NAME;
+
+ switch (uMsg) {
+ case WM_CREATE:
+ return 0;
+ case WM_CLOSE:
+ PostQuitMessage(validation_error);
+ return 0;
+ case WM_PAINT:
+ if (demo.prepared) {
+ demo_run(&demo);
+ break;
+ }
+ case WM_SIZE:
+ // Resize the application to the new window size, except when
+ // it was minimized. Vulkan doesn't support images or swapchains
+ // with width=0 and height=0.
+ if (wParam != SIZE_MINIMIZED) {
+ demo.width = lParam & 0xffff;
+ demo.height = lParam & 0xffff0000 >> 16;
+ demo_resize(&demo);
+ }
+ break;
+ default:
+ break;
+ }
+ return (DefWindowProc(hWnd, uMsg, wParam, lParam));
+}
+
+static void demo_create_window(struct demo *demo) {
+ WNDCLASSEX win_class;
+
+ // Initialize the window class structure:
+ win_class.cbSize = sizeof(WNDCLASSEX);
+ win_class.style = CS_HREDRAW | CS_VREDRAW;
+ win_class.lpfnWndProc = WndProc;
+ win_class.cbClsExtra = 0;
+ win_class.cbWndExtra = 0;
+ win_class.hInstance = demo->connection; // hInstance
+ win_class.hIcon = LoadIcon(NULL, IDI_APPLICATION);
+ win_class.hCursor = LoadCursor(NULL, IDC_ARROW);
+ win_class.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
+ win_class.lpszMenuName = NULL;
+ win_class.lpszClassName = demo->name;
+ win_class.hIconSm = LoadIcon(NULL, IDI_WINLOGO);
+ // Register window class:
+ if (!RegisterClassEx(&win_class)) {
+ // It didn't work, so try to give a useful error:
+ printf("Unexpected error trying to start the application!\n");
+ fflush(stdout);
+ exit(1);
+ }
+ // Create window with the registered class:
+ RECT wr = {0, 0, demo->width, demo->height};
+ AdjustWindowRect(&wr, WS_OVERLAPPEDWINDOW, FALSE);
+ demo->window = CreateWindowEx(0,
+ demo->name, // class name
+ demo->name, // app name
+ WS_OVERLAPPEDWINDOW | // window style
+ WS_VISIBLE | WS_SYSMENU,
+ 100, 100, // x/y coords
+ wr.right - wr.left, // width
+ wr.bottom - wr.top, // height
+ NULL, // handle to parent
+ NULL, // handle to menu
+ demo->connection, // hInstance
+ NULL); // no extra parameters
+ if (!demo->window) {
+ // It didn't work, so try to give a useful error:
+ printf("Cannot create a window in which to draw!\n");
+ fflush(stdout);
+ exit(1);
+ }
+}
+#else // _WIN32
+
+static void demo_handle_event(struct demo *demo,
+ const xcb_generic_event_t *event) {
+ switch (event->response_type & 0x7f) {
+ case XCB_EXPOSE:
+ demo_draw(demo);
+ break;
+ case XCB_CLIENT_MESSAGE:
+ if ((*(xcb_client_message_event_t *)event).data.data32[0] ==
+ (*demo->atom_wm_delete_window).atom) {
+ demo->quit = true;
+ }
+ break;
+ case XCB_KEY_RELEASE: {
+ const xcb_key_release_event_t *key =
+ (const xcb_key_release_event_t *)event;
+
+ if (key->detail == 0x9)
+ demo->quit = true;
+ } break;
+ case XCB_DESTROY_NOTIFY:
+ demo->quit = true;
+ break;
+ case XCB_CONFIGURE_NOTIFY: {
+ const xcb_configure_notify_event_t *cfg =
+ (const xcb_configure_notify_event_t *)event;
+ if ((demo->width != cfg->width) || (demo->height != cfg->height)) {
+ demo->width = cfg->width;
+ demo->height = cfg->height;
+ demo_resize(demo);
+ }
+ } break;
+ default:
+ break;
+ }
+}
+
+static void demo_run(struct demo *demo) {
+ xcb_flush(demo->connection);
+
+ while (!demo->quit) {
+ xcb_generic_event_t *event;
+
+ event = xcb_poll_for_event(demo->connection);
+ if (event) {
+ demo_handle_event(demo, event);
+ free(event);
+ }
+
+ demo_draw(demo);
+
+ if (demo->depthStencil > 0.99f)
+ demo->depthIncrement = -0.001f;
+ if (demo->depthStencil < 0.8f)
+ demo->depthIncrement = 0.001f;
+
+ demo->depthStencil += demo->depthIncrement;
+
+ // Wait for work to finish before updating MVP.
+ vkDeviceWaitIdle(demo->device);
+ demo->curFrame++;
+ if (demo->frameCount != INT32_MAX && demo->curFrame == demo->frameCount)
+ demo->quit = true;
+ }
+}
+
+static void demo_create_window(struct demo *demo) {
+ uint32_t value_mask, value_list[32];
+
+ demo->window = xcb_generate_id(demo->connection);
+
+ value_mask = XCB_CW_BACK_PIXEL | XCB_CW_EVENT_MASK;
+ value_list[0] = demo->screen->black_pixel;
+ value_list[1] = XCB_EVENT_MASK_KEY_RELEASE | XCB_EVENT_MASK_EXPOSURE |
+ XCB_EVENT_MASK_STRUCTURE_NOTIFY;
+
+ xcb_create_window(demo->connection, XCB_COPY_FROM_PARENT, demo->window,
+ demo->screen->root, 0, 0, demo->width, demo->height, 0,
+ XCB_WINDOW_CLASS_INPUT_OUTPUT, demo->screen->root_visual,
+ value_mask, value_list);
+
+ /* Magic code that will send notification when window is destroyed */
+ xcb_intern_atom_cookie_t cookie =
+ xcb_intern_atom(demo->connection, 1, 12, "WM_PROTOCOLS");
+ xcb_intern_atom_reply_t *reply =
+ xcb_intern_atom_reply(demo->connection, cookie, 0);
+
+ xcb_intern_atom_cookie_t cookie2 =
+ xcb_intern_atom(demo->connection, 0, 16, "WM_DELETE_WINDOW");
+ demo->atom_wm_delete_window =
+ xcb_intern_atom_reply(demo->connection, cookie2, 0);
+
+ xcb_change_property(demo->connection, XCB_PROP_MODE_REPLACE, demo->window,
+ (*reply).atom, 4, 32, 1,
+ &(*demo->atom_wm_delete_window).atom);
+ free(reply);
+
+ xcb_map_window(demo->connection, demo->window);
+}
+#endif // _WIN32
+
+/*
+ * Return 1 (true) if all layer names specified in check_names
+ * can be found in given layer properties.
+ */
+static VkBool32 demo_check_layers(uint32_t check_count, char **check_names,
+ uint32_t layer_count,
+ VkLayerProperties *layers) {
+ uint32_t i, j;
+ for (i = 0; i < check_count; i++) {
+ VkBool32 found = 0;
+ for (j = 0; j < layer_count; j++) {
+ if (!strcmp(check_names[i], layers[j].layerName)) {
+ found = 1;
+ break;
+ }
+ }
+ if (!found) {
+ fprintf(stderr, "Cannot find layer: %s\n", check_names[i]);
+ return 0;
+ }
+ }
+ return 1;
+}
+
+static void demo_init_vk(struct demo *demo) {
+ VkResult err;
+ uint32_t instance_extension_count = 0;
+ uint32_t instance_layer_count = 0;
+ uint32_t device_validation_layer_count = 0;
+ char **instance_validation_layers = NULL;
+ uint32_t i;
+ demo->enabled_extension_count = 0;
+ demo->enabled_layer_count = 0;
+
+ char *instance_validation_layers_alt1[] = {
+ "VK_LAYER_LUNARG_standard_validation"
+ };
+
+ char *instance_validation_layers_alt2[] = {
+ "VK_LAYER_GOOGLE_threading", "VK_LAYER_LUNARG_parameter_validation",
+ "VK_LAYER_LUNARG_device_limits", "VK_LAYER_LUNARG_object_tracker",
+ "VK_LAYER_LUNARG_image", "VK_LAYER_LUNARG_core_validation",
+ "VK_LAYER_LUNARG_swapchain", "VK_LAYER_GOOGLE_unique_objects"
+ };
+
+ /* Look for validation layers */
+ VkBool32 validation_found = 0;
+ if (demo->validate) {
+
+ err = vkEnumerateInstanceLayerProperties(&instance_layer_count, NULL);
+ assert(!err);
+
+ instance_validation_layers = instance_validation_layers_alt1;
+ if (instance_layer_count > 0) {
+ VkLayerProperties *instance_layers =
+ malloc(sizeof (VkLayerProperties) * instance_layer_count);
+ err = vkEnumerateInstanceLayerProperties(&instance_layer_count,
+ instance_layers);
+ assert(!err);
+
+
+ validation_found = demo_check_layers(
+ ARRAY_SIZE(instance_validation_layers_alt1),
+ instance_validation_layers, instance_layer_count,
+ instance_layers);
+ if (validation_found) {
+ demo->enabled_layer_count = ARRAY_SIZE(instance_validation_layers_alt1);
+ demo->device_validation_layers[0] = "VK_LAYER_LUNARG_standard_validation";
+ device_validation_layer_count = 1;
+ } else {
+ // use alternative set of validation layers
+ instance_validation_layers = instance_validation_layers_alt2;
+ demo->enabled_layer_count = ARRAY_SIZE(instance_validation_layers_alt2);
+ validation_found = demo_check_layers(
+ ARRAY_SIZE(instance_validation_layers_alt2),
+ instance_validation_layers, instance_layer_count,
+ instance_layers);
+ device_validation_layer_count =
+ ARRAY_SIZE(instance_validation_layers_alt2);
+ for (i = 0; i < device_validation_layer_count; i++) {
+ demo->device_validation_layers[i] =
+ instance_validation_layers[i];
+ }
+ }
+ free(instance_layers);
+ }
+
+ if (!validation_found) {
+ ERR_EXIT("vkEnumerateInstanceLayerProperties failed to find"
+ "required validation layer.\n\n"
+ "Please look at the Getting Started guide for additional "
+ "information.\n",
+ "vkCreateInstance Failure");
+ }
+ }
+
+ /* Look for instance extensions */
+ VkBool32 surfaceExtFound = 0;
+ VkBool32 platformSurfaceExtFound = 0;
+ memset(demo->extension_names, 0, sizeof(demo->extension_names));
+
+ err = vkEnumerateInstanceExtensionProperties(
+ NULL, &instance_extension_count, NULL);
+ assert(!err);
+
+ if (instance_extension_count > 0) {
+ uint32_t i;
+ VkExtensionProperties *instance_extensions =
+ malloc(sizeof(VkExtensionProperties) * instance_extension_count);
+ err = vkEnumerateInstanceExtensionProperties(
+ NULL, &instance_extension_count, instance_extensions);
+ assert(!err);
+ for (i = 0; i < instance_extension_count; i++) {
+ if (!strcmp(VK_KHR_SURFACE_EXTENSION_NAME,
+ instance_extensions[i].extensionName)) {
+ surfaceExtFound = 1;
+ demo->extension_names[demo->enabled_extension_count++] =
+ VK_KHR_SURFACE_EXTENSION_NAME;
+ }
+#ifdef _WIN32
+ if (!strcmp(VK_KHR_WIN32_SURFACE_EXTENSION_NAME,
+ instance_extensions[i].extensionName)) {
+ platformSurfaceExtFound = 1;
+ demo->extension_names[demo->enabled_extension_count++] =
+ VK_KHR_WIN32_SURFACE_EXTENSION_NAME;
+ }
+#else // _WIN32
+ if (!strcmp(VK_KHR_XCB_SURFACE_EXTENSION_NAME,
+ instance_extensions[i].extensionName)) {
+ platformSurfaceExtFound = 1;
+ demo->extension_names[demo->enabled_extension_count++] =
+ VK_KHR_XCB_SURFACE_EXTENSION_NAME;
+ }
+#endif // _WIN32
+ if (!strcmp(VK_EXT_DEBUG_REPORT_EXTENSION_NAME,
+ instance_extensions[i].extensionName)) {
+ if (demo->validate) {
+ demo->extension_names[demo->enabled_extension_count++] =
+ VK_EXT_DEBUG_REPORT_EXTENSION_NAME;
+ }
+ }
+ assert(demo->enabled_extension_count < 64);
+ }
+
+ free(instance_extensions);
+ }
+
+ if (!surfaceExtFound) {
+ ERR_EXIT("vkEnumerateInstanceExtensionProperties failed to find "
+ "the " VK_KHR_SURFACE_EXTENSION_NAME
+ " extension.\n\nDo you have a compatible "
+ "Vulkan installable client driver (ICD) installed?\nPlease "
+ "look at the Getting Started guide for additional "
+ "information.\n",
+ "vkCreateInstance Failure");
+ }
+ if (!platformSurfaceExtFound) {
+#ifdef _WIN32
+ ERR_EXIT("vkEnumerateInstanceExtensionProperties failed to find "
+ "the " VK_KHR_WIN32_SURFACE_EXTENSION_NAME
+ " extension.\n\nDo you have a compatible "
+ "Vulkan installable client driver (ICD) installed?\nPlease "
+ "look at the Getting Started guide for additional "
+ "information.\n",
+ "vkCreateInstance Failure");
+#else // _WIN32
+ ERR_EXIT("vkEnumerateInstanceExtensionProperties failed to find "
+ "the " VK_KHR_XCB_SURFACE_EXTENSION_NAME
+ " extension.\n\nDo you have a compatible "
+ "Vulkan installable client driver (ICD) installed?\nPlease "
+ "look at the Getting Started guide for additional "
+ "information.\n",
+ "vkCreateInstance Failure");
+#endif // _WIN32
+ }
+ const VkApplicationInfo app = {
+ .sType = VK_STRUCTURE_TYPE_APPLICATION_INFO,
+ .pNext = NULL,
+ .pApplicationName = APP_SHORT_NAME,
+ .applicationVersion = 0,
+ .pEngineName = APP_SHORT_NAME,
+ .engineVersion = 0,
+ .apiVersion = VK_API_VERSION_1_0,
+ };
+ VkInstanceCreateInfo inst_info = {
+ .sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO,
+ .pNext = NULL,
+ .pApplicationInfo = &app,
+ .enabledLayerCount = demo->enabled_layer_count,
+ .ppEnabledLayerNames = (const char *const *)instance_validation_layers,
+ .enabledExtensionCount = demo->enabled_extension_count,
+ .ppEnabledExtensionNames = (const char *const *)demo->extension_names,
+ };
+
+ uint32_t gpu_count;
+
+ err = vkCreateInstance(&inst_info, NULL, &demo->inst);
+ if (err == VK_ERROR_INCOMPATIBLE_DRIVER) {
+ ERR_EXIT("Cannot find a compatible Vulkan installable client driver "
+ "(ICD).\n\nPlease look at the Getting Started guide for "
+ "additional information.\n",
+ "vkCreateInstance Failure");
+ } else if (err == VK_ERROR_EXTENSION_NOT_PRESENT) {
+ ERR_EXIT("Cannot find a specified extension library"
+ ".\nMake sure your layers path is set appropriately\n",
+ "vkCreateInstance Failure");
+ } else if (err) {
+ ERR_EXIT("vkCreateInstance failed.\n\nDo you have a compatible Vulkan "
+ "installable client driver (ICD) installed?\nPlease look at "
+ "the Getting Started guide for additional information.\n",
+ "vkCreateInstance Failure");
+ }
+
+ /* Make initial call to query gpu_count, then second call for gpu info*/
+ err = vkEnumeratePhysicalDevices(demo->inst, &gpu_count, NULL);
+ assert(!err && gpu_count > 0);
+
+ if (gpu_count > 0) {
+ VkPhysicalDevice *physical_devices =
+ malloc(sizeof(VkPhysicalDevice) * gpu_count);
+ err = vkEnumeratePhysicalDevices(demo->inst, &gpu_count,
+ physical_devices);
+ assert(!err);
+ /* For tri demo we just grab the first physical device */
+ demo->gpu = physical_devices[0];
+ free(physical_devices);
+ } else {
+ ERR_EXIT("vkEnumeratePhysicalDevices reported zero accessible devices."
+ "\n\nDo you have a compatible Vulkan installable client"
+ " driver (ICD) installed?\nPlease look at the Getting Started"
+ " guide for additional information.\n",
+ "vkEnumeratePhysicalDevices Failure");
+ }
+
+ /* Look for validation layers */
+ if (demo->validate) {
+ validation_found = 0;
+ demo->enabled_layer_count = 0;
+ uint32_t device_layer_count = 0;
+ err =
+ vkEnumerateDeviceLayerProperties(demo->gpu, &device_layer_count, NULL);
+ assert(!err);
+
+ if (device_layer_count > 0) {
+ VkLayerProperties *device_layers =
+ malloc(sizeof (VkLayerProperties) * device_layer_count);
+ err = vkEnumerateDeviceLayerProperties(demo->gpu, &device_layer_count,
+ device_layers);
+ assert(!err);
+
+
+ validation_found = demo_check_layers(device_validation_layer_count,
+ demo->device_validation_layers,
+ device_layer_count,
+ device_layers);
+ demo->enabled_layer_count = device_validation_layer_count;
+
+ free(device_layers);
+ }
+
+ if (!validation_found) {
+ ERR_EXIT("vkEnumerateDeviceLayerProperties failed to find "
+ "a required validation layer.\n\n"
+ "Please look at the Getting Started guide for additional "
+ "information.\n",
+ "vkCreateDevice Failure");
+ }
+ }
+
+ /* Look for device extensions */
+ uint32_t device_extension_count = 0;
+ VkBool32 swapchainExtFound = 0;
+ demo->enabled_extension_count = 0;
+ memset(demo->extension_names, 0, sizeof(demo->extension_names));
+
+ err = vkEnumerateDeviceExtensionProperties(demo->gpu, NULL,
+ &device_extension_count, NULL);
+ assert(!err);
+
+ if (device_extension_count > 0) {
+ uint32_t i;
+ VkExtensionProperties *device_extensions =
+ malloc(sizeof(VkExtensionProperties) * device_extension_count);
+ err = vkEnumerateDeviceExtensionProperties(
+ demo->gpu, NULL, &device_extension_count, device_extensions);
+ assert(!err);
+
+ for (i = 0; i < device_extension_count; i++) {
+ if (!strcmp(VK_KHR_SWAPCHAIN_EXTENSION_NAME,
+ device_extensions[i].extensionName)) {
+ swapchainExtFound = 1;
+ demo->extension_names[demo->enabled_extension_count++] =
+ VK_KHR_SWAPCHAIN_EXTENSION_NAME;
+ }
+ assert(demo->enabled_extension_count < 64);
+ }
+
+ free(device_extensions);
+ }
+
+ if (!swapchainExtFound) {
+ ERR_EXIT("vkEnumerateDeviceExtensionProperties failed to find "
+ "the " VK_KHR_SWAPCHAIN_EXTENSION_NAME
+ " extension.\n\nDo you have a compatible "
+ "Vulkan installable client driver (ICD) installed?\nPlease "
+ "look at the Getting Started guide for additional "
+ "information.\n",
+ "vkCreateInstance Failure");
+ }
+
+ if (demo->validate) {
+ demo->CreateDebugReportCallback =
+ (PFN_vkCreateDebugReportCallbackEXT)vkGetInstanceProcAddr(
+ demo->inst, "vkCreateDebugReportCallbackEXT");
+ demo->DestroyDebugReportCallback =
+ (PFN_vkDestroyDebugReportCallbackEXT)vkGetInstanceProcAddr(
+ demo->inst, "vkDestroyDebugReportCallbackEXT");
+ if (!demo->CreateDebugReportCallback) {
+ ERR_EXIT(
+ "GetProcAddr: Unable to find vkCreateDebugReportCallbackEXT\n",
+ "vkGetProcAddr Failure");
+ }
+ if (!demo->DestroyDebugReportCallback) {
+ ERR_EXIT(
+ "GetProcAddr: Unable to find vkDestroyDebugReportCallbackEXT\n",
+ "vkGetProcAddr Failure");
+ }
+ demo->DebugReportMessage =
+ (PFN_vkDebugReportMessageEXT)vkGetInstanceProcAddr(
+ demo->inst, "vkDebugReportMessageEXT");
+ if (!demo->DebugReportMessage) {
+ ERR_EXIT("GetProcAddr: Unable to find vkDebugReportMessageEXT\n",
+ "vkGetProcAddr Failure");
+ }
+
+ VkDebugReportCallbackCreateInfoEXT dbgCreateInfo;
+ dbgCreateInfo.sType = VK_STRUCTURE_TYPE_DEBUG_REPORT_CREATE_INFO_EXT;
+ dbgCreateInfo.flags =
+ VK_DEBUG_REPORT_ERROR_BIT_EXT | VK_DEBUG_REPORT_WARNING_BIT_EXT;
+ dbgCreateInfo.pfnCallback = demo->use_break ? BreakCallback : dbgFunc;
+ dbgCreateInfo.pUserData = NULL;
+ dbgCreateInfo.pNext = NULL;
+ err = demo->CreateDebugReportCallback(demo->inst, &dbgCreateInfo, NULL,
+ &demo->msg_callback);
+ switch (err) {
+ case VK_SUCCESS:
+ break;
+ case VK_ERROR_OUT_OF_HOST_MEMORY:
+ ERR_EXIT("CreateDebugReportCallback: out of host memory\n",
+ "CreateDebugReportCallback Failure");
+ break;
+ default:
+ ERR_EXIT("CreateDebugReportCallback: unknown failure\n",
+ "CreateDebugReportCallback Failure");
+ break;
+ }
+ }
+
+ // Having these GIPA queries of device extension entry points both
+ // BEFORE and AFTER vkCreateDevice is a good test for the loader
+ GET_INSTANCE_PROC_ADDR(demo->inst, GetPhysicalDeviceSurfaceCapabilitiesKHR);
+ GET_INSTANCE_PROC_ADDR(demo->inst, GetPhysicalDeviceSurfaceFormatsKHR);
+ GET_INSTANCE_PROC_ADDR(demo->inst, GetPhysicalDeviceSurfacePresentModesKHR);
+ GET_INSTANCE_PROC_ADDR(demo->inst, GetPhysicalDeviceSurfaceSupportKHR);
+ GET_INSTANCE_PROC_ADDR(demo->inst, CreateSwapchainKHR);
+ GET_INSTANCE_PROC_ADDR(demo->inst, DestroySwapchainKHR);
+ GET_INSTANCE_PROC_ADDR(demo->inst, GetSwapchainImagesKHR);
+ GET_INSTANCE_PROC_ADDR(demo->inst, AcquireNextImageKHR);
+ GET_INSTANCE_PROC_ADDR(demo->inst, QueuePresentKHR);
+
+ vkGetPhysicalDeviceProperties(demo->gpu, &demo->gpu_props);
+
+ // Query with NULL data to get count
+ vkGetPhysicalDeviceQueueFamilyProperties(demo->gpu, &demo->queue_count,
+ NULL);
+
+ demo->queue_props = (VkQueueFamilyProperties *)malloc(
+ demo->queue_count * sizeof(VkQueueFamilyProperties));
+ vkGetPhysicalDeviceQueueFamilyProperties(demo->gpu, &demo->queue_count,
+ demo->queue_props);
+ assert(demo->queue_count >= 1);
+
+ VkPhysicalDeviceFeatures features;
+ vkGetPhysicalDeviceFeatures(demo->gpu, &features);
+
+ if (!features.shaderClipDistance) {
+ ERR_EXIT("Required device feature `shaderClipDistance` not supported\n",
+ "GetPhysicalDeviceFeatures failure");
+ }
+
+ // Graphics queue and MemMgr queue can be separate.
+ // TODO: Add support for separate queues, including synchronization,
+ // and appropriate tracking for QueueSubmit
+}
+
+static void demo_init_device(struct demo *demo) {
+ VkResult U_ASSERT_ONLY err;
+
+ float queue_priorities[1] = {0.0};
+ const VkDeviceQueueCreateInfo queue = {
+ .sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO,
+ .pNext = NULL,
+ .queueFamilyIndex = demo->graphics_queue_node_index,
+ .queueCount = 1,
+ .pQueuePriorities = queue_priorities};
+
+ VkPhysicalDeviceFeatures features = {
+ .shaderClipDistance = VK_TRUE,
+ };
+
+ VkDeviceCreateInfo device = {
+ .sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO,
+ .pNext = NULL,
+ .queueCreateInfoCount = 1,
+ .pQueueCreateInfos = &queue,
+ .enabledLayerCount = demo->enabled_layer_count,
+ .ppEnabledLayerNames =
+ (const char *const *)((demo->validate)
+ ? demo->device_validation_layers
+ : NULL),
+ .enabledExtensionCount = demo->enabled_extension_count,
+ .ppEnabledExtensionNames = (const char *const *)demo->extension_names,
+ .pEnabledFeatures = &features,
+ };
+
+ err = vkCreateDevice(demo->gpu, &device, NULL, &demo->device);
+ assert(!err);
+}
+
+static void demo_init_vk_swapchain(struct demo *demo) {
+ VkResult U_ASSERT_ONLY err;
+ uint32_t i;
+
+// Create a WSI surface for the window:
+#ifdef _WIN32
+ VkWin32SurfaceCreateInfoKHR createInfo;
+ createInfo.sType = VK_STRUCTURE_TYPE_WIN32_SURFACE_CREATE_INFO_KHR;
+ createInfo.pNext = NULL;
+ createInfo.flags = 0;
+ createInfo.hinstance = demo->connection;
+ createInfo.hwnd = demo->window;
+
+ err =
+ vkCreateWin32SurfaceKHR(demo->inst, &createInfo, NULL, &demo->surface);
+
+#else // _WIN32
+ VkXcbSurfaceCreateInfoKHR createInfo;
+ createInfo.sType = VK_STRUCTURE_TYPE_XCB_SURFACE_CREATE_INFO_KHR;
+ createInfo.pNext = NULL;
+ createInfo.flags = 0;
+ createInfo.connection = demo->connection;
+ createInfo.window = demo->window;
+
+ err = vkCreateXcbSurfaceKHR(demo->inst, &createInfo, NULL, &demo->surface);
+#endif // _WIN32
+
+ // Iterate over each queue to learn whether it supports presenting:
+ VkBool32 *supportsPresent =
+ (VkBool32 *)malloc(demo->queue_count * sizeof(VkBool32));
+ for (i = 0; i < demo->queue_count; i++) {
+ demo->fpGetPhysicalDeviceSurfaceSupportKHR(demo->gpu, i, demo->surface,
+ &supportsPresent[i]);
+ }
+
+ // Search for a graphics and a present queue in the array of queue
+ // families, try to find one that supports both
+ uint32_t graphicsQueueNodeIndex = UINT32_MAX;
+ uint32_t presentQueueNodeIndex = UINT32_MAX;
+ for (i = 0; i < demo->queue_count; i++) {
+ if ((demo->queue_props[i].queueFlags & VK_QUEUE_GRAPHICS_BIT) != 0) {
+ if (graphicsQueueNodeIndex == UINT32_MAX) {
+ graphicsQueueNodeIndex = i;
+ }
+
+ if (supportsPresent[i] == VK_TRUE) {
+ graphicsQueueNodeIndex = i;
+ presentQueueNodeIndex = i;
+ break;
+ }
+ }
+ }
+ if (presentQueueNodeIndex == UINT32_MAX) {
+ // If didn't find a queue that supports both graphics and present, then
+ // find a separate present queue.
+ uint32_t i;
+ for (i = 0; i < demo->queue_count; ++i) {
+ if (supportsPresent[i] == VK_TRUE) {
+ presentQueueNodeIndex = i;
+ break;
+ }
+ }
+ }
+ free(supportsPresent);
+
+ // Generate error if could not find both a graphics and a present queue
+ if (graphicsQueueNodeIndex == UINT32_MAX ||
+ presentQueueNodeIndex == UINT32_MAX) {
+ ERR_EXIT("Could not find a graphics and a present queue\n",
+ "Swapchain Initialization Failure");
+ }
+
+ // TODO: Add support for separate queues, including presentation,
+ // synchronization, and appropriate tracking for QueueSubmit.
+ // NOTE: While it is possible for an application to use a separate graphics
+ // and a present queues, this demo program assumes it is only using
+ // one:
+ if (graphicsQueueNodeIndex != presentQueueNodeIndex) {
+ ERR_EXIT("Could not find a common graphics and a present queue\n",
+ "Swapchain Initialization Failure");
+ }
+
+ demo->graphics_queue_node_index = graphicsQueueNodeIndex;
+
+ demo_init_device(demo);
+
+ vkGetDeviceQueue(demo->device, demo->graphics_queue_node_index, 0,
+ &demo->queue);
+
+ // Get the list of VkFormat's that are supported:
+ uint32_t formatCount;
+ err = demo->fpGetPhysicalDeviceSurfaceFormatsKHR(demo->gpu, demo->surface,
+ &formatCount, NULL);
+ assert(!err);
+ VkSurfaceFormatKHR *surfFormats =
+ (VkSurfaceFormatKHR *)malloc(formatCount * sizeof(VkSurfaceFormatKHR));
+ err = demo->fpGetPhysicalDeviceSurfaceFormatsKHR(demo->gpu, demo->surface,
+ &formatCount, surfFormats);
+ assert(!err);
+ // If the format list includes just one entry of VK_FORMAT_UNDEFINED,
+ // the surface has no preferred format. Otherwise, at least one
+ // supported format will be returned.
+ if (formatCount == 1 && surfFormats[0].format == VK_FORMAT_UNDEFINED) {
+ demo->format = VK_FORMAT_B8G8R8A8_UNORM;
+ } else {
+ assert(formatCount >= 1);
+ demo->format = surfFormats[0].format;
+ }
+ demo->color_space = surfFormats[0].colorSpace;
+
+ demo->quit = false;
+ demo->curFrame = 0;
+
+ // Get Memory information and properties
+ vkGetPhysicalDeviceMemoryProperties(demo->gpu, &demo->memory_properties);
+}
+
+static void demo_init_connection(struct demo *demo) {
+#ifndef _WIN32
+ const xcb_setup_t *setup;
+ xcb_screen_iterator_t iter;
+ int scr;
+
+ demo->connection = xcb_connect(NULL, &scr);
+ if (demo->connection == NULL) {
+ printf("Cannot find a compatible Vulkan installable client driver "
+ "(ICD).\nExiting ...\n");
+ fflush(stdout);
+ exit(1);
+ }
+
+ setup = xcb_get_setup(demo->connection);
+ iter = xcb_setup_roots_iterator(setup);
+ while (scr-- > 0)
+ xcb_screen_next(&iter);
+
+ demo->screen = iter.data;
+#endif // _WIN32
+}
+
+static void demo_init(struct demo *demo, const int argc, const char *argv[])
+{
+ int i;
+
+ memset(demo, 0, sizeof(*demo));
+ demo->frameCount = INT32_MAX;
+
+ for (i = 1; i < argc; i++) {
+ if (strcmp(argv[i], "--use_staging") == 0) {
+ demo->use_staging_buffer = true;
+ continue;
+ }
+ if (strcmp(argv[i], "--break") == 0) {
+ demo->use_break = true;
+ continue;
+ }
+ if (strcmp(argv[i], "--validate") == 0) {
+ demo->validate = true;
+ continue;
+ }
+ if (strcmp(argv[i], "--c") == 0 && demo->frameCount == INT32_MAX &&
+ i < argc - 1 && sscanf(argv[i + 1], "%d", &demo->frameCount) == 1 &&
+ demo->frameCount >= 0) {
+ i++;
+ continue;
+ }
+
+ fprintf(stderr, "Usage:\n %s [--use_staging] [--validate] [--break] "
+ "[--c <framecount>]\n",
+ APP_SHORT_NAME);
+ fflush(stderr);
+ exit(1);
+ }
+
+ demo_init_connection(demo);
+ demo_init_vk(demo);
+
+ demo->width = 300;
+ demo->height = 300;
+ demo->depthStencil = 1.0;
+ demo->depthIncrement = -0.01f;
+}
+
+static void demo_cleanup(struct demo *demo) {
+ uint32_t i;
+
+ demo->prepared = false;
+
+ for (i = 0; i < demo->swapchainImageCount; i++) {
+ vkDestroyFramebuffer(demo->device, demo->framebuffers[i], NULL);
+ }
+ free(demo->framebuffers);
+ vkDestroyDescriptorPool(demo->device, demo->desc_pool, NULL);
+
+ if (demo->setup_cmd) {
+ vkFreeCommandBuffers(demo->device, demo->cmd_pool, 1, &demo->setup_cmd);
+ }
+ vkFreeCommandBuffers(demo->device, demo->cmd_pool, 1, &demo->draw_cmd);
+ vkDestroyCommandPool(demo->device, demo->cmd_pool, NULL);
+
+ vkDestroyPipeline(demo->device, demo->pipeline, NULL);
+ vkDestroyRenderPass(demo->device, demo->render_pass, NULL);
+ vkDestroyPipelineLayout(demo->device, demo->pipeline_layout, NULL);
+ vkDestroyDescriptorSetLayout(demo->device, demo->desc_layout, NULL);
+
+ vkDestroyBuffer(demo->device, demo->vertices.buf, NULL);
+ vkFreeMemory(demo->device, demo->vertices.mem, NULL);
+
+ for (i = 0; i < DEMO_TEXTURE_COUNT; i++) {
+ vkDestroyImageView(demo->device, demo->textures[i].view, NULL);
+ vkDestroyImage(demo->device, demo->textures[i].image, NULL);
+ vkFreeMemory(demo->device, demo->textures[i].mem, NULL);
+ vkDestroySampler(demo->device, demo->textures[i].sampler, NULL);
+ }
+
+ for (i = 0; i < demo->swapchainImageCount; i++) {
+ vkDestroyImageView(demo->device, demo->buffers[i].view, NULL);
+ }
+
+ vkDestroyImageView(demo->device, demo->depth.view, NULL);
+ vkDestroyImage(demo->device, demo->depth.image, NULL);
+ vkFreeMemory(demo->device, demo->depth.mem, NULL);
+
+ demo->fpDestroySwapchainKHR(demo->device, demo->swapchain, NULL);
+ free(demo->buffers);
+
+ vkDestroyDevice(demo->device, NULL);
+ if (demo->validate) {
+ demo->DestroyDebugReportCallback(demo->inst, demo->msg_callback, NULL);
+ }
+ vkDestroySurfaceKHR(demo->inst, demo->surface, NULL);
+ vkDestroyInstance(demo->inst, NULL);
+
+ free(demo->queue_props);
+
+#ifndef _WIN32
+ xcb_destroy_window(demo->connection, demo->window);
+ xcb_disconnect(demo->connection);
+ free(demo->atom_wm_delete_window);
+#endif // _WIN32
+}
+
+static void demo_resize(struct demo *demo) {
+ uint32_t i;
+
+ // Don't react to resize until after first initialization.
+ if (!demo->prepared) {
+ return;
+ }
+ // In order to properly resize the window, we must re-create the swapchain
+ // AND redo the command buffers, etc.
+ //
+ // First, perform part of the demo_cleanup() function:
+ demo->prepared = false;
+
+ for (i = 0; i < demo->swapchainImageCount; i++) {
+ vkDestroyFramebuffer(demo->device, demo->framebuffers[i], NULL);
+ }
+ free(demo->framebuffers);
+ vkDestroyDescriptorPool(demo->device, demo->desc_pool, NULL);
+
+ if (demo->setup_cmd) {
+ vkFreeCommandBuffers(demo->device, demo->cmd_pool, 1, &demo->setup_cmd);
+ }
+ vkFreeCommandBuffers(demo->device, demo->cmd_pool, 1, &demo->draw_cmd);
+ vkDestroyCommandPool(demo->device, demo->cmd_pool, NULL);
+
+ vkDestroyPipeline(demo->device, demo->pipeline, NULL);
+ vkDestroyRenderPass(demo->device, demo->render_pass, NULL);
+ vkDestroyPipelineLayout(demo->device, demo->pipeline_layout, NULL);
+ vkDestroyDescriptorSetLayout(demo->device, demo->desc_layout, NULL);
+
+ vkDestroyBuffer(demo->device, demo->vertices.buf, NULL);
+ vkFreeMemory(demo->device, demo->vertices.mem, NULL);
+
+ for (i = 0; i < DEMO_TEXTURE_COUNT; i++) {
+ vkDestroyImageView(demo->device, demo->textures[i].view, NULL);
+ vkDestroyImage(demo->device, demo->textures[i].image, NULL);
+ vkFreeMemory(demo->device, demo->textures[i].mem, NULL);
+ vkDestroySampler(demo->device, demo->textures[i].sampler, NULL);
+ }
+
+ for (i = 0; i < demo->swapchainImageCount; i++) {
+ vkDestroyImageView(demo->device, demo->buffers[i].view, NULL);
+ }
+
+ vkDestroyImageView(demo->device, demo->depth.view, NULL);
+ vkDestroyImage(demo->device, demo->depth.image, NULL);
+ vkFreeMemory(demo->device, demo->depth.mem, NULL);
+
+ free(demo->buffers);
+
+ // Second, re-perform the demo_prepare() function, which will re-create the
+ // swapchain:
+ demo_prepare(demo);
+}
+
+#ifdef _WIN32
+// Include header required for parsing the command line options.
+#include <shellapi.h>
+
+int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
+ LPSTR pCmdLine, int nCmdShow) {
+ MSG msg; // message
+ bool done; // flag saying when app is complete
+ int argc;
+ char **argv;
+
+ // Use the CommandLine functions to get the command line arguments.
+ // Unfortunately, Microsoft outputs
+ // this information as wide characters for Unicode, and we simply want the
+ // Ascii version to be compatible
+ // with the non-Windows side. So, we have to convert the information to
+ // Ascii character strings.
+ LPWSTR *commandLineArgs = CommandLineToArgvW(GetCommandLineW(), &argc);
+ if (NULL == commandLineArgs) {
+ argc = 0;
+ }
+
+ if (argc > 0) {
+ argv = (char **)malloc(sizeof(char *) * argc);
+ if (argv == NULL) {
+ argc = 0;
+ } else {
+ for (int iii = 0; iii < argc; iii++) {
+ size_t wideCharLen = wcslen(commandLineArgs[iii]);
+ size_t numConverted = 0;
+
+ argv[iii] = (char *)malloc(sizeof(char) * (wideCharLen + 1));
+ if (argv[iii] != NULL) {
+ wcstombs_s(&numConverted, argv[iii], wideCharLen + 1,
+ commandLineArgs[iii], wideCharLen + 1);
+ }
+ }
+ }
+ } else {
+ argv = NULL;
+ }
+
+ demo_init(&demo, argc, argv);
+
+ // Free up the items we had to allocate for the command line arguments.
+ if (argc > 0 && argv != NULL) {
+ for (int iii = 0; iii < argc; iii++) {
+ if (argv[iii] != NULL) {
+ free(argv[iii]);
+ }
+ }
+ free(argv);
+ }
+
+ demo.connection = hInstance;
+ strncpy(demo.name, "tri", APP_NAME_STR_LEN);
+ demo_create_window(&demo);
+ demo_init_vk_swapchain(&demo);
+
+ demo_prepare(&demo);
+
+ done = false; // initialize loop condition variable
+ /* main message loop*/
+ while (!done) {
+ PeekMessage(&msg, NULL, 0, 0, PM_REMOVE);
+ if (msg.message == WM_QUIT) // check for a quit message
+ {
+ done = true; // if found, quit app
+ } else {
+ /* Translate and dispatch to event queue*/
+ TranslateMessage(&msg);
+ DispatchMessage(&msg);
+ }
+ RedrawWindow(demo.window, NULL, NULL, RDW_INTERNALPAINT);
+ }
+
+ demo_cleanup(&demo);
+
+ return (int)msg.wParam;
+}
+#else // _WIN32
+int main(const int argc, const char *argv[]) {
+ struct demo demo;
+
+ demo_init(&demo, argc, argv);
+ demo_create_window(&demo);
+ demo_init_vk_swapchain(&demo);
+
+ demo_prepare(&demo);
+ demo_run(&demo);
+
+ demo_cleanup(&demo);
+
+ return validation_error;
+}
+#endif // _WIN32
projects / platform / core / uifw / vulkan-wsi-tizen.git / commitdiff