From: Taekyun Kim Date: Fri, 8 Apr 2016 10:44:50 +0000 (+0900) Subject: samples: tri.c from khronos loader tests X-Git-Tag: submit/submit/tizen/20170906.070327/20170906.070422~85 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d090154cfa0a64a3ac5415070563382e8c1e9636;p=platform%2Fcore%2Fuifw%2Fvulkan-wsi-tizen.git samples: tri.c from khronos loader tests Change-Id: I9694c98d6b01aa1188fb06ad2ed6178f85b00c37 --- diff --git a/Makefile.am b/Makefile.am index baf2ee1..397ca6c 100644 --- a/Makefile.am +++ b/Makefile.am @@ -1,3 +1,4 @@ SUBDIRS = src/utils \ src/null-driver \ - src/wsi + src/wsi \ + samples diff --git a/configure.ac b/configure.ac index 3240265..7ed6885 100644 --- a/configure.ac +++ b/configure.ac @@ -62,7 +62,7 @@ AC_ARG_ENABLE(xcb, enable_xcb=no) if test x$enable_xcb = xyes; then - PKG_CHECK_MODULES(XCB, [x11-xcb]) + PKG_CHECK_MODULES(XCB, [xcb]) AC_DEFINE([VK_USE_PLATFORM_XCB_KHR], [1], [Enable XCB WSI functions]) fi @@ -74,6 +74,7 @@ Makefile src/utils/Makefile src/null-driver/Makefile src/wsi/Makefile +samples/Makefile ]) AC_OUTPUT diff --git a/samples/Makefile.am b/samples/Makefile.am new file mode 100644 index 0000000..bceb50b --- /dev/null +++ b/samples/Makefile.am @@ -0,0 +1,7 @@ +noinst_PROGRAMS = + +noinst_PROGRAMS += tri + +tri_CFLAGS = $(XCB_CFLAGS) -I$(top_srcdir)/include +tri_LDADD = $(XCB_LIBS) -lvulkan +tri_SOURCES = tri.c diff --git a/samples/tri.c b/samples/tri.c new file mode 100644 index 0000000..d2d0db1 --- /dev/null +++ b/samples/tri.c @@ -0,0 +1,2547 @@ +/* + * 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 + * Author: Cody Northrop + * Author: Courtney Goeltzenleuchter + * Author: Ian Elliott + * Author: Jon Ashburn + * Author: Piers Daniell + */ +/* + * 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 +#include +#include +#include +#include +#include +#include + +#ifdef _WIN32 +#pragma comment(linker, "/subsystem:windows") +#define APP_NAME_STR_LEN 80 +#endif // _WIN32 + +#include + +#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 ]\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 + +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 diff --git a/samples/tri.frag b/samples/tri.frag new file mode 100644 index 0000000..c353a47 --- /dev/null +++ b/samples/tri.frag @@ -0,0 +1,36 @@ +/* + * 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. + */ +/* + * Fragment shader for tri demo + */ +#version 400 +#extension GL_ARB_separate_shader_objects : enable +#extension GL_ARB_shading_language_420pack : enable +layout (binding = 0) uniform sampler2D tex; +layout (location = 0) in vec2 texcoord; +layout (location = 0) out vec4 uFragColor; +void main() { + uFragColor = texture(tex, texcoord); +} diff --git a/samples/tri.vert b/samples/tri.vert new file mode 100644 index 0000000..48b3381 --- /dev/null +++ b/samples/tri.vert @@ -0,0 +1,37 @@ +/* + * 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. + */ +/* + * Vertex shader used by tri demo. + */ +#version 400 +#extension GL_ARB_separate_shader_objects : enable +#extension GL_ARB_shading_language_420pack : enable +layout (location = 0) in vec4 pos; +layout (location = 1) in vec2 attr; +layout (location = 0) out vec2 texcoord; +void main() { + texcoord = attr; + gl_Position = pos; +}