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gerrit-public.fairphone.software / platform / external / vulkan-validation-layers / 3bc2818856b9d01d843ac1ed554c6324d73835eb / . / demos / cube.cpp
blob: d692a4177c25d7db9cd02ae75144873d7a906463 [file] [log] [blame]
/*
* Copyright (c) 2015-2016 The Khronos Group Inc.
* Copyright (c) 2015-2016 Valve Corporation
* Copyright (c) 2015-2016 LunarG, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Author: Jeremy Hayes <jeremy@lunarg.com>
*/
#if defined(VK_USE_PLATFORM_XLIB_KHR) || defined(VK_USE_PLATFORM_XCB_KHR)
#include <X11/Xutil.h>
#endif
#include <cassert>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <csignal>
#include <memory>
#define VULKAN_HPP_NO_EXCEPTIONS
#include <vulkan/vulkan.hpp>
#include <vulkan/vk_sdk_platform.h>
#include "linmath.h"
#ifndef NDEBUG
#define VERIFY(x) assert(x)
#else
#define VERIFY(x) ((void)(x))
#endif
#define APP_SHORT_NAME "cube"
#ifdef _WIN32
#define APP_NAME_STR_LEN 80
#endif
// Allow a maximum of two outstanding presentation operations.
#define FRAME_LAG 2
#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
#ifdef _WIN32
#define ERR_EXIT(err_msg, err_class) \
do { \
if (!suppress_popups) \
MessageBox(nullptr, err_msg, err_class, MB_OK); \
exit(1); \
} while (0)
#else
#define ERR_EXIT(err_msg, err_class) \
do { \
printf(err_msg); \
fflush(stdout); \
exit(1); \
} while (0)
#endif
struct texture_object {
vk::Sampler sampler;
vk::Image image;
vk::ImageLayout imageLayout { vk::ImageLayout::eUndefined };
vk::MemoryAllocateInfo mem_alloc;
vk::DeviceMemory mem;
vk::ImageView view;
int32_t tex_width {0};
int32_t tex_height {0};
};
static char const *const tex_files[] = {"lunarg.ppm"};
static int validation_error = 0;
struct vkcube_vs_uniform {
// Must start with MVP
float mvp[4][4];
float position[12 * 3][4];
float color[12 * 3][4];
};
struct vktexcube_vs_uniform {
// Must start with MVP
float mvp[4][4];
float position[12 * 3][4];
float attr[12 * 3][4];
};
//--------------------------------------------------------------------------------------
// Mesh and VertexFormat Data
//--------------------------------------------------------------------------------------
// clang-format off
static const float g_vertex_buffer_data[] = {
-1.0f,-1.0f,-1.0f, // -X side
-1.0f,-1.0f, 1.0f,
-1.0f, 1.0f, 1.0f,
-1.0f, 1.0f, 1.0f,
-1.0f, 1.0f,-1.0f,
-1.0f,-1.0f,-1.0f,
-1.0f,-1.0f,-1.0f, // -Z side
1.0f, 1.0f,-1.0f,
1.0f,-1.0f,-1.0f,
-1.0f,-1.0f,-1.0f,
-1.0f, 1.0f,-1.0f,
1.0f, 1.0f,-1.0f,
-1.0f,-1.0f,-1.0f, // -Y side
1.0f,-1.0f,-1.0f,
1.0f,-1.0f, 1.0f,
-1.0f,-1.0f,-1.0f,
1.0f,-1.0f, 1.0f,
-1.0f,-1.0f, 1.0f,
-1.0f, 1.0f,-1.0f, // +Y side
-1.0f, 1.0f, 1.0f,
1.0f, 1.0f, 1.0f,
-1.0f, 1.0f,-1.0f,
1.0f, 1.0f, 1.0f,
1.0f, 1.0f,-1.0f,
1.0f, 1.0f,-1.0f, // +X side
1.0f, 1.0f, 1.0f,
1.0f,-1.0f, 1.0f,
1.0f,-1.0f, 1.0f,
1.0f,-1.0f,-1.0f,
1.0f, 1.0f,-1.0f,
-1.0f, 1.0f, 1.0f, // +Z side
-1.0f,-1.0f, 1.0f,
1.0f, 1.0f, 1.0f,
-1.0f,-1.0f, 1.0f,
1.0f,-1.0f, 1.0f,
1.0f, 1.0f, 1.0f,
};
static const float g_uv_buffer_data[] = {
0.0f, 1.0f, // -X side
1.0f, 1.0f,
1.0f, 0.0f,
1.0f, 0.0f,
0.0f, 0.0f,
0.0f, 1.0f,
1.0f, 1.0f, // -Z side
0.0f, 0.0f,
0.0f, 1.0f,
1.0f, 1.0f,
1.0f, 0.0f,
0.0f, 0.0f,
1.0f, 0.0f, // -Y side
1.0f, 1.0f,
0.0f, 1.0f,
1.0f, 0.0f,
0.0f, 1.0f,
0.0f, 0.0f,
1.0f, 0.0f, // +Y side
0.0f, 0.0f,
0.0f, 1.0f,
1.0f, 0.0f,
0.0f, 1.0f,
1.0f, 1.0f,
1.0f, 0.0f, // +X side
0.0f, 0.0f,
0.0f, 1.0f,
0.0f, 1.0f,
1.0f, 1.0f,
1.0f, 0.0f,
0.0f, 0.0f, // +Z side
0.0f, 1.0f,
1.0f, 0.0f,
0.0f, 1.0f,
1.0f, 1.0f,
1.0f, 0.0f,
};
// clang-format on
typedef struct {
vk::Image image;
vk::CommandBuffer cmd;
vk::CommandBuffer graphics_to_present_cmd;
vk::ImageView view;
} SwapchainBuffers;
#ifdef _WIN32
// MS-Windows event handling function:
LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
#endif
struct Demo {
Demo()
:
#if defined(VK_USE_PLATFORM_WIN32_KHR)
connection{nullptr},
window{nullptr},
minsize(POINT{
0, 0}), // Use explicit construction to avoid MSVC error C2797.
#endif
#if defined(VK_USE_PLATFORM_XLIB_KHR)
xlib_window{0},
xlib_wm_delete_window{0}, display{nullptr},
#endif
#if defined(VK_USE_PLATFORM_XCB_KHR)
xcb_window{0}, screen{nullptr}, connection{nullptr},
#endif
#if defined(VK_USE_PLATFORM_WAYLAND_KHR)
display{nullptr}, registry{nullptr}, compositor{nullptr},
window{nullptr}, shell{nullptr}, shell_surface{nullptr},
#endif
prepared{false}, use_staging_buffer{false}, use_xlib{false},
graphics_queue_family_index{0}, present_queue_family_index{0},
enabled_extension_count{0}, enabled_layer_count{0}, width{0},
height{0}, swapchainImageCount{0}, frame_index{0}, spin_angle{0.0f},
spin_increment{0.0f}, pause{false}, quit{false}, curFrame{0},
frameCount{0}, validate{false}, use_break{false},
suppress_popups{false}, current_buffer{0}, queue_family_count{0} {
#if defined(VK_USE_PLATFORM_WIN32_KHR)
memset(name, '\0', APP_NAME_STR_LEN);
#endif
memset(projection_matrix, 0, sizeof(projection_matrix));
memset(view_matrix, 0, sizeof(view_matrix));
memset(model_matrix, 0, sizeof(model_matrix));
}
void build_image_ownership_cmd(uint32_t const &i) {
auto const cmd_buf_info = vk::CommandBufferBeginInfo().setFlags(
vk::CommandBufferUsageFlagBits::eSimultaneousUse);
auto result = buffers[i].graphics_to_present_cmd.begin(&cmd_buf_info);
VERIFY(result == vk::Result::eSuccess);
auto const image_ownership_barrier =
vk::ImageMemoryBarrier()
.setSrcAccessMask(vk::AccessFlags())
.setDstAccessMask(vk::AccessFlagBits::eColorAttachmentWrite)
.setOldLayout(vk::ImageLayout::ePresentSrcKHR)
.setNewLayout(vk::ImageLayout::ePresentSrcKHR)
.setSrcQueueFamilyIndex(graphics_queue_family_index)
.setDstQueueFamilyIndex(present_queue_family_index)
.setImage(buffers[i].image)
.setSubresourceRange(vk::ImageSubresourceRange(
vk::ImageAspectFlagBits::eColor, 0, 1, 0, 1));
buffers[i].graphics_to_present_cmd.pipelineBarrier(
vk::PipelineStageFlagBits::eColorAttachmentOutput,
vk::PipelineStageFlagBits::eColorAttachmentOutput,
vk::DependencyFlagBits(), 0, nullptr, 0, nullptr, 1,
&image_ownership_barrier);
result = buffers[i].graphics_to_present_cmd.end();
VERIFY(result == vk::Result::eSuccess);
}
vk::Bool32 check_layers(uint32_t check_count,
char const *const *const check_names,
uint32_t layer_count, vk::LayerProperties *layers) {
for (uint32_t i = 0; i < check_count; i++) {
vk::Bool32 found = VK_FALSE;
for (uint32_t j = 0; j < layer_count; j++) {
if (!strcmp(check_names[i], layers[j].layerName)) {
found = VK_TRUE;
break;
}
}
if (!found) {
fprintf(stderr, "Cannot find layer: %s\n", check_names[i]);
return 0;
}
}
return VK_TRUE;
}
void cleanup() {
prepared = false;
device.waitIdle();
// Wait for fences from present operations
for (uint32_t i = 0; i < FRAME_LAG; i++) {
device.waitForFences(1, &fences[i], VK_TRUE, UINT64_MAX);
device.destroyFence(fences[i], nullptr);
device.destroySemaphore(image_acquired_semaphores[i], nullptr);
device.destroySemaphore(draw_complete_semaphores[i], nullptr);
if (separate_present_queue) {
device.destroySemaphore(image_ownership_semaphores[i], nullptr);
}
}
for (uint32_t i = 0; i < swapchainImageCount; i++) {
device.destroyFramebuffer(framebuffers[i], nullptr);
}
device.destroyDescriptorPool(desc_pool, nullptr);
device.destroyPipeline(pipeline, nullptr);
device.destroyPipelineCache(pipelineCache, nullptr);
device.destroyRenderPass(render_pass, nullptr);
device.destroyPipelineLayout(pipeline_layout, nullptr);
device.destroyDescriptorSetLayout(desc_layout, nullptr);
for (uint32_t i = 0; i < texture_count; i++) {
device.destroyImageView(textures[i].view, nullptr);
device.destroyImage(textures[i].image, nullptr);
device.freeMemory(textures[i].mem, nullptr);
device.destroySampler(textures[i].sampler, nullptr);
}
device.destroySwapchainKHR(swapchain, nullptr);
device.destroyImageView(depth.view, nullptr);
device.destroyImage(depth.image, nullptr);
device.freeMemory(depth.mem, nullptr);
device.destroyBuffer(uniform_data.buf, nullptr);
device.freeMemory(uniform_data.mem, nullptr);
for (uint32_t i = 0; i < swapchainImageCount; i++) {
device.destroyImageView(buffers[i].view, nullptr);
device.freeCommandBuffers(cmd_pool, 1, &buffers[i].cmd);
}
device.destroyCommandPool(cmd_pool, nullptr);
if (separate_present_queue) {
device.destroyCommandPool(present_cmd_pool, nullptr);
}
device.waitIdle();
device.destroy(nullptr);
inst.destroySurfaceKHR(surface, nullptr);
inst.destroy(nullptr);
#if defined(VK_USE_PLATFORM_XLIB_KHR) && defined(VK_USE_PLATFORM_XCB_KHR)
if (use_xlib) {
XDestroyWindow(display, xlib_window);
XCloseDisplay(display);
} else {
xcb_destroy_window(connection, xcb_window);
xcb_disconnect(connection);
}
free(atom_wm_delete_window);
#elif defined(VK_USE_PLATFORM_XLIB_KHR)
XDestroyWindow(display, xlib_window);
XCloseDisplay(display);
#elif defined(VK_USE_PLATFORM_XCB_KHR)
xcb_destroy_window(connection, xcb_window);
xcb_disconnect(connection);
free(atom_wm_delete_window);
#elif defined(VK_USE_PLATFORM_WAYLAND_KHR)
wl_shell_surface_destroy(shell_surface);
wl_surface_destroy(window);
wl_shell_destroy(shell);
wl_compositor_destroy(compositor);
wl_registry_destroy(registry);
wl_display_disconnect(display);
#endif
}
void create_device() {
float const priorities[1] = {0.0};
vk::DeviceQueueCreateInfo queues[2];
queues[0].setQueueFamilyIndex(graphics_queue_family_index);
queues[0].setQueueCount(1);
queues[0].setPQueuePriorities(priorities);
auto deviceInfo = vk::DeviceCreateInfo()
.setQueueCreateInfoCount(1)
.setPQueueCreateInfos(queues)
.setEnabledLayerCount(0)
.setPpEnabledLayerNames(nullptr)
.setEnabledExtensionCount(enabled_extension_count)
.setPpEnabledExtensionNames(
(const char *const *)extension_names)
.setPEnabledFeatures(nullptr);
if (separate_present_queue) {
queues[1].setQueueFamilyIndex(present_queue_family_index);
queues[1].setQueueCount(1);
queues[1].setPQueuePriorities(priorities);
deviceInfo.setQueueCreateInfoCount(2);
}
auto result = gpu.createDevice(&deviceInfo, nullptr, &device);
VERIFY(result == vk::Result::eSuccess);
}
void destroy_texture_image(texture_object *tex_objs) {
// clean up staging resources
device.freeMemory(tex_objs->mem, nullptr);
device.destroyImage(tex_objs->image, nullptr);
}
void draw() {
// Ensure no more than FRAME_LAG presentations are outstanding
device.waitForFences(1, &fences[frame_index], VK_TRUE, UINT64_MAX);
device.resetFences(1, &fences[frame_index]);
// Get the index of the next available swapchain image:
auto result = device.acquireNextImageKHR(
swapchain, UINT64_MAX, image_acquired_semaphores[frame_index],
fences[frame_index], &current_buffer);
if (result == vk::Result::eErrorOutOfDateKHR) {
// swapchain is out of date (e.g. the window was resized) and
// must be recreated:
frame_index += 1;
frame_index %= FRAME_LAG;
resize();
draw();
return;
} else if (result == vk::Result::eSuboptimalKHR) {
// swapchain is not as optimal as it could be, but the platform's
// presentation engine will still present the image correctly.
} else {
VERIFY(result == vk::Result::eSuccess);
}
// Wait for the image acquired 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.
vk::PipelineStageFlags const pipe_stage_flags =
vk::PipelineStageFlagBits::eColorAttachmentOutput;
auto const submit_info =
vk::SubmitInfo()
.setPWaitDstStageMask(&pipe_stage_flags)
.setWaitSemaphoreCount(1)
.setPWaitSemaphores(&image_acquired_semaphores[frame_index])
.setCommandBufferCount(1)
.setPCommandBuffers(&buffers[current_buffer].cmd)
.setSignalSemaphoreCount(1)
.setPSignalSemaphores(&draw_complete_semaphores[frame_index]);
result = graphics_queue.submit(1, &submit_info, vk::Fence());
VERIFY(result == vk::Result::eSuccess);
if (separate_present_queue) {
// If we are using separate queues, change image ownership to the
// present queue before presenting, waiting for the draw complete
// semaphore and signalling the ownership released semaphore when
// finished
auto const submit_info =
vk::SubmitInfo()
.setPWaitDstStageMask(&pipe_stage_flags)
.setWaitSemaphoreCount(1)
.setPWaitSemaphores(&draw_complete_semaphores[frame_index])
.setCommandBufferCount(1)
.setPCommandBuffers(
&buffers[current_buffer].graphics_to_present_cmd)
.setSignalSemaphoreCount(1)
.setPSignalSemaphores(
&image_ownership_semaphores[frame_index]);
result = present_queue.submit(1, &submit_info, vk::Fence());
VERIFY(result == vk::Result::eSuccess);
}
// If we are using separate queues we have to wait for image ownership,
// otherwise wait for draw complete
auto const presentInfo =
vk::PresentInfoKHR()
.setWaitSemaphoreCount(1)
.setPWaitSemaphores(
separate_present_queue
? &image_ownership_semaphores[frame_index]
: &draw_complete_semaphores[frame_index])
.setSwapchainCount(1)
.setPSwapchains(&swapchain)
.setPImageIndices(&current_buffer);
result = present_queue.presentKHR(&presentInfo);
frame_index += 1;
frame_index %= FRAME_LAG;
if (result == vk::Result::eErrorOutOfDateKHR) {
// swapchain is out of date (e.g. the window was resized) and
// must be recreated:
resize();
} else if (result == vk::Result::eSuboptimalKHR) {
// swapchain is not as optimal as it could be, but the platform's
// presentation engine will still present the image correctly.
} else {
VERIFY(result == vk::Result::eSuccess);
}
}
void draw_build_cmd(vk::CommandBuffer commandBuffer) {
auto const commandInfo = vk::CommandBufferBeginInfo().setFlags(
vk::CommandBufferUsageFlagBits::eSimultaneousUse);
vk::ClearValue const clearValues[2] = {
vk::ClearColorValue(std::array<float, 4>({0.2f, 0.2f, 0.2f, 0.2f})),
vk::ClearDepthStencilValue(1.0f, 0u)};
auto const passInfo =
vk::RenderPassBeginInfo()
.setRenderPass(render_pass)
.setFramebuffer(framebuffers[current_buffer])
.setRenderArea(
vk::Rect2D(vk::Offset2D(0, 0),
vk::Extent2D((uint32_t)width, (uint32_t)height)))
.setClearValueCount(2)
.setPClearValues(clearValues);
auto result = commandBuffer.begin(&commandInfo);
VERIFY(result == vk::Result::eSuccess);
commandBuffer.beginRenderPass(&passInfo, vk::SubpassContents::eInline);
commandBuffer.bindPipeline(vk::PipelineBindPoint::eGraphics, pipeline);
commandBuffer.bindDescriptorSets(vk::PipelineBindPoint::eGraphics,
pipeline_layout, 0, 1, &desc_set, 0,
nullptr);
auto const viewport = vk::Viewport()
.setWidth((float)width)
.setHeight((float)height)
.setMinDepth((float)0.0f)
.setMaxDepth((float)1.0f);
commandBuffer.setViewport(0, 1, &viewport);
vk::Rect2D const scissor(vk::Offset2D(0, 0),
vk::Extent2D(width, height));
commandBuffer.setScissor(0, 1, &scissor);
commandBuffer.draw(12 * 3, 1, 0, 0);
// Note that ending the renderpass changes the image's layout from
// COLOR_ATTACHMENT_OPTIMAL to PRESENT_SRC_KHR
commandBuffer.endRenderPass();
if (separate_present_queue) {
// We have to transfer ownership from the graphics queue family to
// the
// present queue family to be able to present. Note that we don't
// have
// to transfer from present queue family back to graphics queue
// family at
// the start of the next frame because we don't care about the
// image's
// contents at that point.
auto const image_ownership_barrier =
vk::ImageMemoryBarrier()
.setSrcAccessMask(vk::AccessFlags())
.setDstAccessMask(vk::AccessFlagBits::eColorAttachmentWrite)
.setOldLayout(vk::ImageLayout::ePresentSrcKHR)
.setNewLayout(vk::ImageLayout::ePresentSrcKHR)
.setSrcQueueFamilyIndex(graphics_queue_family_index)
.setDstQueueFamilyIndex(present_queue_family_index)
.setImage(buffers[current_buffer].image)
.setSubresourceRange(vk::ImageSubresourceRange(
vk::ImageAspectFlagBits::eColor, 0, 1, 0, 1));
commandBuffer.pipelineBarrier(
vk::PipelineStageFlagBits::eColorAttachmentOutput,
vk::PipelineStageFlagBits::eBottomOfPipe,
vk::DependencyFlagBits(), 0, nullptr, 0, nullptr, 1,
&image_ownership_barrier);
}
result = commandBuffer.end();
VERIFY(result == vk::Result::eSuccess);
}
void flush_init_cmd() {
// TODO: hmm.
// This function could get called twice if the texture uses a staging
// buffer
// In that case the second call should be ignored
if (!cmd) {
return;
}
auto result = cmd.end();
VERIFY(result == vk::Result::eSuccess);
auto const fenceInfo = vk::FenceCreateInfo();
vk::Fence fence;
device.createFence(&fenceInfo, nullptr, &fence);
vk::CommandBuffer const commandBuffers[] = {cmd};
auto const submitInfo =
vk::SubmitInfo().setCommandBufferCount(1).setPCommandBuffers(
commandBuffers);
result = graphics_queue.submit(1, &submitInfo, fence);
VERIFY(result == vk::Result::eSuccess);
result = device.waitForFences(1, &fence, VK_TRUE, UINT64_MAX);
VERIFY(result == vk::Result::eSuccess);
device.freeCommandBuffers(cmd_pool, 1, commandBuffers);
device.destroyFence(fence, nullptr);
cmd = vk::CommandBuffer();
}
void init(int argc, char **argv) {
vec3 eye = {0.0f, 3.0f, 5.0f};
vec3 origin = {0, 0, 0};
vec3 up = {0.0f, 1.0f, 0.0};
presentMode = vk::PresentModeKHR::eFifo;
frameCount = UINT32_MAX;
use_xlib = false;
for (int i = 1; i < argc; i++) {
if (strcmp(argv[i], "--use_staging") == 0) {
use_staging_buffer = true;
continue;
}
if ((strcmp(argv[i], "--present_mode") == 0) &&
(i < argc - 1)) {
presentMode = (vk::PresentModeKHR)atoi(argv[i+1]);
i++;
continue;
}
if (strcmp(argv[i], "--break") == 0) {
use_break = true;
continue;
}
if (strcmp(argv[i], "--validate") == 0) {
validate = true;
continue;
}
#if defined(VK_USE_PLATFORM_XLIB_KHR)
if (strcmp(argv[i], "--xlib") == 0) {
use_xlib = true;
continue;
}
#endif
if (strcmp(argv[i], "--c") == 0 && frameCount == UINT32_MAX &&
i < argc - 1 && sscanf(argv[i + 1], "%d", &frameCount) == 1) {
i++;
continue;
}
if (strcmp(argv[i], "--suppress_popups") == 0) {
suppress_popups = true;
continue;
}
fprintf(stderr,
"Usage:\n %s [--use_staging] [--validate] [--break] "
#if defined(VK_USE_PLATFORM_XLIB_KHR)
"[--xlib] "
#endif
"[--c <framecount>] [--suppress_popups] [--present_mode <present mode enum>]\n"
"VK_PRESENT_MODE_IMMEDIATE_KHR = %d\n"
"VK_PRESENT_MODE_MAILBOX_KHR = %d\n"
"VK_PRESENT_MODE_FIFO_KHR = %d\n"
"VK_PRESENT_MODE_FIFO_RELAXED_KHR = %d\n",
APP_SHORT_NAME, VK_PRESENT_MODE_IMMEDIATE_KHR, VK_PRESENT_MODE_MAILBOX_KHR,
VK_PRESENT_MODE_FIFO_KHR, VK_PRESENT_MODE_FIFO_RELAXED_KHR);
fflush(stderr);
exit(1);
}
if (!use_xlib) {
init_connection();
}
init_vk();
width = 500;
height = 500;
spin_angle = 4.0f;
spin_increment = 0.2f;
pause = false;
mat4x4_perspective(projection_matrix, (float)degreesToRadians(45.0f),
1.0f, 0.1f, 100.0f);
mat4x4_look_at(view_matrix, eye, origin, up);
mat4x4_identity(model_matrix);
projection_matrix[1][1] *=
-1; // Flip projection matrix from GL to Vulkan orientation.
}
void init_connection() {
#if defined(VK_USE_PLATFORM_XCB_KHR)
const xcb_setup_t *setup;
xcb_screen_iterator_t iter;
int scr;
connection = xcb_connect(nullptr, &scr);
if (xcb_connection_has_error(connection) > 0) {
printf("Cannot find a compatible Vulkan installable client driver "
"(ICD).\nExiting ...\n");
fflush(stdout);
exit(1);
}
setup = xcb_get_setup(connection);
iter = xcb_setup_roots_iterator(setup);
while (scr-- > 0)
xcb_screen_next(&iter);
screen = iter.data;
#elif defined(VK_USE_PLATFORM_WAYLAND_KHR)
display = wl_display_connect(nullptr);
if (display == nullptr) {
printf("Cannot find a compatible Vulkan installable client driver "
"(ICD).\nExiting ...\n");
fflush(stdout);
exit(1);
}
registry = wl_display_get_registry(display);
wl_registry_add_listener(registry, &registry_listener, this);
wl_display_dispatch(display);
#endif
}
void init_vk() {
uint32_t instance_extension_count = 0;
uint32_t instance_layer_count = 0;
uint32_t validation_layer_count = 0;
char const *const *instance_validation_layers = nullptr;
enabled_extension_count = 0;
enabled_layer_count = 0;
char const *const instance_validation_layers_alt1[] = {
"VK_LAYER_LUNARG_standard_validation"};
char const *const instance_validation_layers_alt2[] = {
"VK_LAYER_GOOGLE_threading",
"VK_LAYER_LUNARG_parameter_validation",
"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
vk::Bool32 validation_found = VK_FALSE;
if (validate) {
auto result = vk::enumerateInstanceLayerProperties(
&instance_layer_count, nullptr);
VERIFY(result == vk::Result::eSuccess);
instance_validation_layers = instance_validation_layers_alt1;
if (instance_layer_count > 0) {
std::unique_ptr<vk::LayerProperties[]> instance_layers(
new vk::LayerProperties[instance_layer_count]);
result = vk::enumerateInstanceLayerProperties(
&instance_layer_count, instance_layers.get());
VERIFY(result == vk::Result::eSuccess);
validation_found =
check_layers(ARRAY_SIZE(instance_validation_layers_alt1),
instance_validation_layers,
instance_layer_count, instance_layers.get());
if (validation_found) {
enabled_layer_count =
ARRAY_SIZE(instance_validation_layers_alt1);
enabled_layers[0] = "VK_LAYER_LUNARG_standard_validation";
validation_layer_count = 1;
} else {
// use alternative set of validation layers
instance_validation_layers =
instance_validation_layers_alt2;
enabled_layer_count =
ARRAY_SIZE(instance_validation_layers_alt2);
validation_found = check_layers(
ARRAY_SIZE(instance_validation_layers_alt2),
instance_validation_layers, instance_layer_count,
instance_layers.get());
validation_layer_count =
ARRAY_SIZE(instance_validation_layers_alt2);
for (uint32_t i = 0; i < validation_layer_count; i++) {
enabled_layers[i] = instance_validation_layers[i];
}
}
}
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 */
vk::Bool32 surfaceExtFound = VK_FALSE;
vk::Bool32 platformSurfaceExtFound = VK_FALSE;
#if defined(VK_USE_PLATFORM_XLIB_KHR)
vk::Bool32 xlibSurfaceExtFound = VK_FALSE;
#endif
memset(extension_names, 0, sizeof(extension_names));
auto result = vk::enumerateInstanceExtensionProperties(
nullptr, &instance_extension_count, nullptr);
VERIFY(result == vk::Result::eSuccess);
if (instance_extension_count > 0) {
std::unique_ptr<vk::ExtensionProperties[]> instance_extensions(
new vk::ExtensionProperties[instance_extension_count]);
result = vk::enumerateInstanceExtensionProperties(
nullptr, &instance_extension_count, instance_extensions.get());
VERIFY(result == vk::Result::eSuccess);
for (uint32_t i = 0; i < instance_extension_count; i++) {
if (!strcmp(VK_KHR_SURFACE_EXTENSION_NAME,
instance_extensions[i].extensionName)) {
surfaceExtFound = 1;
extension_names[enabled_extension_count++] =
VK_KHR_SURFACE_EXTENSION_NAME;
}
#if defined(VK_USE_PLATFORM_WIN32_KHR)
if (!strcmp(VK_KHR_WIN32_SURFACE_EXTENSION_NAME,
instance_extensions[i].extensionName)) {
platformSurfaceExtFound = 1;
extension_names[enabled_extension_count++] =
VK_KHR_WIN32_SURFACE_EXTENSION_NAME;
}
#endif
#if defined(VK_USE_PLATFORM_XLIB_KHR)
if (!strcmp(VK_KHR_XLIB_SURFACE_EXTENSION_NAME,
instance_extensions[i].extensionName)) {
platformSurfaceExtFound = 1;
xlibSurfaceExtFound = 1;
extension_names[enabled_extension_count++] =
VK_KHR_XLIB_SURFACE_EXTENSION_NAME;
}
#endif
#if defined(VK_USE_PLATFORM_XCB_KHR)
if (!strcmp(VK_KHR_XCB_SURFACE_EXTENSION_NAME,
instance_extensions[i].extensionName)) {
platformSurfaceExtFound = 1;
extension_names[enabled_extension_count++] =
VK_KHR_XCB_SURFACE_EXTENSION_NAME;
}
#endif
#if defined(VK_USE_PLATFORM_WAYLAND_KHR)
if (!strcmp(VK_KHR_WAYLAND_SURFACE_EXTENSION_NAME,
instance_extensions[i].extensionName)) {
platformSurfaceExtFound = 1;
extension_names[enabled_extension_count++] =
VK_KHR_WAYLAND_SURFACE_EXTENSION_NAME;
}
#endif
assert(enabled_extension_count < 64);
}
}
if (!surfaceExtFound) {
ERR_EXIT("vkEnumerateInstanceExtensionProperties failed to find "
"the " VK_KHR_SURFACE_EXTENSION_NAME " extension.\n\n"
"Do you have a compatible Vulkan installable client "
"driver (ICD) installed?\n"
"Please look at the Getting Started guide for additional "
"information.\n",
"vkCreateInstance Failure");
}
if (!platformSurfaceExtFound) {
#if defined(VK_USE_PLATFORM_WIN32_KHR)
ERR_EXIT("vkEnumerateInstanceExtensionProperties failed to find "
"the " VK_KHR_WIN32_SURFACE_EXTENSION_NAME
" extension.\n\n"
"Do you have a compatible Vulkan installable client "
"driver (ICD) installed?\n"
"Please look at the Getting Started guide for additional "
"information.\n",
"vkCreateInstance Failure");
#elif defined(VK_USE_PLATFORM_XCB_KHR)
ERR_EXIT("vkEnumerateInstanceExtensionProperties failed to find "
"the " VK_KHR_XCB_SURFACE_EXTENSION_NAME " extension.\n\n"
"Do you have a compatible Vulkan installable client "
"driver (ICD) installed?\n"
"Please look at the Getting Started guide for additional "
"information.\n",
"vkCreateInstance Failure");
#elif defined(VK_USE_PLATFORM_WAYLAND_KHR)
ERR_EXIT("vkEnumerateInstanceExtensionProperties failed to find "
"the " VK_KHR_WAYLAND_SURFACE_EXTENSION_NAME
" extension.\n\n"
"Do you have a compatible Vulkan installable client "
"driver (ICD) installed?\n"
"Please look at the Getting Started guide for additional "
"information.\n",
"vkCreateInstance Failure");
#endif
}
#if defined(VK_USE_PLATFORM_XLIB_KHR)
if (use_xlib && !xlibSurfaceExtFound) {
ERR_EXIT("vkEnumerateInstanceExtensionProperties failed to find "
"the " VK_KHR_XLIB_SURFACE_EXTENSION_NAME " extension.\n\n"
"Do you have a compatible Vulkan installable client "
"driver (ICD) installed?\n"
"Please look at the Getting Started guide for additional "
"information.\n",
"vkCreateInstance Failure");
}
#endif
auto const app = vk::ApplicationInfo()
.setPApplicationName(APP_SHORT_NAME)
.setApplicationVersion(0)
.setPEngineName(APP_SHORT_NAME)
.setEngineVersion(0)
.setApiVersion(VK_API_VERSION_1_0);
auto const inst_info =
vk::InstanceCreateInfo()
.setPApplicationInfo(&app)
.setEnabledLayerCount(enabled_layer_count)
.setPpEnabledLayerNames(instance_validation_layers)
.setEnabledExtensionCount(enabled_extension_count)
.setPpEnabledExtensionNames(extension_names);
result = vk::createInstance(&inst_info, nullptr, &inst);
if (result == vk::Result::eErrorIncompatibleDriver) {
ERR_EXIT("Cannot find a compatible Vulkan installable client "
"driver (ICD).\n\n"
"Please look at the Getting Started guide for additional "
"information.\n",
"vkCreateInstance Failure");
} else if (result == vk::Result::eErrorExtensionNotPresent) {
ERR_EXIT("Cannot find a specified extension library.\n"
"Make sure your layers path is set appropriately.\n",
"vkCreateInstance Failure");
} else if (result != vk::Result::eSuccess) {
ERR_EXIT("vkCreateInstance failed.\n\n"
"Do you have a compatible Vulkan installable client "
"driver (ICD) installed?\n"
"Please 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*/
uint32_t gpu_count;
result = inst.enumeratePhysicalDevices(&gpu_count, nullptr);
VERIFY(result == vk::Result::eSuccess);
assert(gpu_count > 0);
if (gpu_count > 0) {
std::unique_ptr<vk::PhysicalDevice[]> physical_devices(
new vk::PhysicalDevice[gpu_count]);
result = inst.enumeratePhysicalDevices(&gpu_count,
physical_devices.get());
VERIFY(result == vk::Result::eSuccess);
/* For cube demo we just grab the first physical device */
gpu = physical_devices[0];
} else {
ERR_EXIT("vkEnumeratePhysicalDevices reported zero accessible "
"devices.\n\n"
"Do you have a compatible Vulkan installable client "
"driver (ICD) installed?\n"
"Please look at the Getting Started guide for additional "
"information.\n",
"vkEnumeratePhysicalDevices Failure");
}
/* Look for device extensions */
uint32_t device_extension_count = 0;
vk::Bool32 swapchainExtFound = VK_FALSE;
enabled_extension_count = 0;
memset(extension_names, 0, sizeof(extension_names));
result = gpu.enumerateDeviceExtensionProperties(
nullptr, &device_extension_count, nullptr);
VERIFY(result == vk::Result::eSuccess);
if (device_extension_count > 0) {
std::unique_ptr<vk::ExtensionProperties[]> device_extensions(
new vk::ExtensionProperties[device_extension_count]);
result = gpu.enumerateDeviceExtensionProperties(
nullptr, &device_extension_count, device_extensions.get());
VERIFY(result == vk::Result::eSuccess);
for (uint32_t i = 0; i < device_extension_count; i++) {
if (!strcmp(VK_KHR_SWAPCHAIN_EXTENSION_NAME,
device_extensions[i].extensionName)) {
swapchainExtFound = 1;
extension_names[enabled_extension_count++] =
VK_KHR_SWAPCHAIN_EXTENSION_NAME;
}
assert(enabled_extension_count < 64);
}
}
if (!swapchainExtFound) {
ERR_EXIT("vkEnumerateDeviceExtensionProperties failed to find "
"the " VK_KHR_SWAPCHAIN_EXTENSION_NAME " extension.\n\n"
"Do you have a compatible Vulkan installable client "
"driver (ICD) installed?\n"
"Please look at the Getting Started guide for additional "
"information.\n",
"vkCreateInstance Failure");
}
gpu.getProperties(&gpu_props);
/* Call with nullptr data to get count */
gpu.getQueueFamilyProperties(&queue_family_count, nullptr);
assert(queue_family_count >= 1);
queue_props.reset(new vk::QueueFamilyProperties[queue_family_count]);
gpu.getQueueFamilyProperties(&queue_family_count, queue_props.get());
// Query fine-grained feature support for this device.
// If app has specific feature requirements it should check supported
// features based on this query
vk::PhysicalDeviceFeatures physDevFeatures;
gpu.getFeatures(&physDevFeatures);
}
void init_vk_swapchain() {
// Create a WSI surface for the window:
#if defined(VK_USE_PLATFORM_WIN32_KHR)
{
auto const createInfo = vk::Win32SurfaceCreateInfoKHR()
.setHinstance(connection)
.setHwnd(window);
auto result =
inst.createWin32SurfaceKHR(&createInfo, nullptr, &surface);
VERIFY(result == vk::Result::eSuccess);
}
#elif defined(VK_USE_PLATFORM_WAYLAND_KHR) && !defined(VK_USE_PLATFORM_XCB_KHR)
{
auto const createInfo = vk::WaylandSurfaceCreateInfoKHR()
.setDisplay(display)
.setSurface(window);
auto result =
inst.createWaylandSurfaceKHR(&createInfo, nullptr, &surface);
VERIFY(result == vk::Result::eSuccess);
}
#endif
if (use_xlib) {
#if defined(VK_USE_PLATFORM_XLIB_KHR)
auto const createInfo =
vk::XlibSurfaceCreateInfoKHR().setDpy(display).setWindow(
xlib_window);
auto result =
inst.createXlibSurfaceKHR(&createInfo, nullptr, &surface);
VERIFY(result == vk::Result::eSuccess);
#endif
} else {
#if defined(VK_USE_PLATFORM_XCB_KHR)
auto const createInfo = vk::XcbSurfaceCreateInfoKHR()
.setConnection(connection)
.setWindow(xcb_window);
auto result =
inst.createXcbSurfaceKHR(&createInfo, nullptr, &surface);
VERIFY(result == vk::Result::eSuccess);
#endif
}
// Iterate over each queue to learn whether it supports presenting:
std::unique_ptr<vk::Bool32[]> supportsPresent(
new vk::Bool32[queue_family_count]);
for (uint32_t i = 0; i < queue_family_count; i++) {
gpu.getSurfaceSupportKHR(i, surface, &supportsPresent[i]);
}
uint32_t graphicsQueueFamilyIndex = UINT32_MAX;
uint32_t presentQueueFamilyIndex = UINT32_MAX;
for (uint32_t i = 0; i < queue_family_count; i++) {
if (queue_props[i].queueFlags & vk::QueueFlagBits::eGraphics) {
if (graphicsQueueFamilyIndex == UINT32_MAX) {
graphicsQueueFamilyIndex = i;
}
if (supportsPresent[i] == VK_TRUE) {
graphicsQueueFamilyIndex = i;
presentQueueFamilyIndex = i;
break;
}
}
}
if (presentQueueFamilyIndex == UINT32_MAX) {
// If didn't find a queue that supports both graphics and present,
// then
// find a separate present queue.
for (uint32_t i = 0; i < queue_family_count; ++i) {
if (supportsPresent[i] == VK_TRUE) {
presentQueueFamilyIndex = i;
break;
}
}
}
// Generate error if could not find both a graphics and a present queue
if (graphicsQueueFamilyIndex == UINT32_MAX ||
presentQueueFamilyIndex == UINT32_MAX) {
ERR_EXIT("Could not find both graphics and present queues\n",
"Swapchain Initialization Failure");
}
graphics_queue_family_index = graphicsQueueFamilyIndex;
present_queue_family_index = presentQueueFamilyIndex;
separate_present_queue =
(graphics_queue_family_index != present_queue_family_index);
create_device();
device.getQueue(graphics_queue_family_index, 0, &graphics_queue);
if (!separate_present_queue) {
present_queue = graphics_queue;
} else {
device.getQueue(present_queue_family_index, 0, &present_queue);
}
// Get the list of VkFormat's that are supported:
uint32_t formatCount;
auto result = gpu.getSurfaceFormatsKHR(surface, &formatCount, nullptr);
VERIFY(result == vk::Result::eSuccess);
std::unique_ptr<vk::SurfaceFormatKHR[]> surfFormats(
new vk::SurfaceFormatKHR[formatCount]);
result =
gpu.getSurfaceFormatsKHR(surface, &formatCount, surfFormats.get());
VERIFY(result == vk::Result::eSuccess);
// 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::eUndefined) {
format = vk::Format::eB8G8R8A8Unorm;
} else {
assert(formatCount >= 1);
format = surfFormats[0].format;
}
color_space = surfFormats[0].colorSpace;
quit = false;
curFrame = 0;
// Create semaphores to synchronize acquiring presentable buffers before
// rendering and waiting for drawing to be complete before presenting
auto const semaphoreCreateInfo = vk::SemaphoreCreateInfo();
// Create fences that we can use to throttle if we get too far
// ahead of the image presents
auto const fence_ci =
vk::FenceCreateInfo().setFlags(vk::FenceCreateFlagBits::eSignaled);
for (uint32_t i = 0; i < FRAME_LAG; i++) {
device.createFence(&fence_ci, nullptr, &fences[i]);
result = device.createSemaphore(&semaphoreCreateInfo, nullptr,
&image_acquired_semaphores[i]);
VERIFY(result == vk::Result::eSuccess);
result = device.createSemaphore(&semaphoreCreateInfo, nullptr,
&draw_complete_semaphores[i]);
VERIFY(result == vk::Result::eSuccess);
if (separate_present_queue) {
result = device.createSemaphore(&semaphoreCreateInfo, nullptr,
&image_ownership_semaphores[i]);
VERIFY(result == vk::Result::eSuccess);
}
}
frame_index = 0;
// Get Memory information and properties
gpu.getMemoryProperties(&memory_properties);
}
void prepare() {
auto const cmd_pool_info =
vk::CommandPoolCreateInfo().setQueueFamilyIndex(
graphics_queue_family_index);
auto result =
device.createCommandPool(&cmd_pool_info, nullptr, &cmd_pool);
VERIFY(result == vk::Result::eSuccess);
auto const cmd = vk::CommandBufferAllocateInfo()
.setCommandPool(cmd_pool)
.setLevel(vk::CommandBufferLevel::ePrimary)
.setCommandBufferCount(1);
result = device.allocateCommandBuffers(&cmd, &this->cmd);
VERIFY(result == vk::Result::eSuccess);
auto const cmd_buf_info =
vk::CommandBufferBeginInfo().setPInheritanceInfo(nullptr);
result = this->cmd.begin(&cmd_buf_info);
VERIFY(result == vk::Result::eSuccess);
prepare_buffers();
prepare_depth();
prepare_textures();
prepare_cube_data_buffer();
prepare_descriptor_layout();
prepare_render_pass();
prepare_pipeline();
for (uint32_t i = 0; i < swapchainImageCount; ++i) {
result = device.allocateCommandBuffers(&cmd, &buffers[i].cmd);
VERIFY(result == vk::Result::eSuccess);
}
if (separate_present_queue) {
auto const cmd_pool_info =
vk::CommandPoolCreateInfo().setQueueFamilyIndex(
present_queue_family_index);
result = device.createCommandPool(&cmd_pool_info, nullptr,
&present_cmd_pool);
VERIFY(result == vk::Result::eSuccess);
auto const cmd = vk::CommandBufferAllocateInfo()
.setCommandPool(present_cmd_pool)
.setLevel(vk::CommandBufferLevel::ePrimary)
.setCommandBufferCount(1);
for (uint32_t i = 0; i < swapchainImageCount; i++) {
result = device.allocateCommandBuffers(
&cmd, &buffers[i].graphics_to_present_cmd);
VERIFY(result == vk::Result::eSuccess);
build_image_ownership_cmd(i);
}
}
prepare_descriptor_pool();
prepare_descriptor_set();
prepare_framebuffers();
for (uint32_t i = 0; i < swapchainImageCount; ++i) {
current_buffer = i;
draw_build_cmd(buffers[i].cmd);
}
/*
* Prepare functions above may generate pipeline commands
* that need to be flushed before beginning the render loop.
*/
flush_init_cmd();
if(staging_texture.image)
{
destroy_texture_image(&staging_texture);
}
current_buffer = 0;
prepared = true;
}
void prepare_buffers() {
vk::SwapchainKHR oldSwapchain = swapchain;
// Check the surface capabilities and formats
vk::SurfaceCapabilitiesKHR surfCapabilities;
auto result = gpu.getSurfaceCapabilitiesKHR(surface, &surfCapabilities);
VERIFY(result == vk::Result::eSuccess);
uint32_t presentModeCount;
result =
gpu.getSurfacePresentModesKHR(surface, &presentModeCount, nullptr);
VERIFY(result == vk::Result::eSuccess);
std::unique_ptr<vk::PresentModeKHR[]> presentModes(
new vk::PresentModeKHR[presentModeCount]);
result = gpu.getSurfacePresentModesKHR(surface, &presentModeCount,
presentModes.get());
VERIFY(result == vk::Result::eSuccess);
vk::Extent2D 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 = width;
swapchainExtent.height = height;
} else {
// If the surface size is defined, the swap chain size must match
swapchainExtent = surfCapabilities.currentExtent;
width = surfCapabilities.currentExtent.width;
height = surfCapabilities.currentExtent.height;
}
// The FIFO present mode is guaranteed by the spec to be supported
// and to have no tearing. It's a great default present mode to use.
vk::PresentModeKHR swapchainPresentMode = vk::PresentModeKHR::eFifo;
// There are times when you may wish to use another present mode. The
// following code shows how to select them, and the comments provide some
// reasons you may wish to use them.
//
// It should be noted that Vulkan 1.0 doesn't provide a method for
// synchronizing rendering with the presentation engine's display. There
// is a method provided for throttling rendering with the display, but
// there are some presentation engines for which this method will not work.
// If an application doesn't throttle its rendering, and if it renders much
// faster than the refresh rate of the display, this can waste power on
// mobile devices. That is because power is being spent rendering images
// that may never be seen.
// VK_PRESENT_MODE_IMMEDIATE_KHR is for applications that don't care
// about
// tearing, or have some way of synchronizing their rendering with the
// display.
// VK_PRESENT_MODE_MAILBOX_KHR may be useful for applications that
// generally render a new presentable image every refresh cycle, but are
// occasionally early. In this case, the application wants the new
// image
// to be displayed instead of the previously-queued-for-presentation
// image
// that has not yet been displayed.
// VK_PRESENT_MODE_FIFO_RELAXED_KHR is for applications that generally
// render a new presentable image every refresh cycle, but are
// occasionally
// late. In this case (perhaps because of stuttering/latency concerns),
// the application wants the late image to be immediately displayed,
// even
// though that may mean some tearing.
if(presentMode != swapchainPresentMode)
{
for (size_t i = 0; i < presentModeCount; ++i) {
if (presentModes[i] == presentMode) {
swapchainPresentMode = presentMode;
break;
}
}
}
if(swapchainPresentMode != presentMode)
{
ERR_EXIT("Present mode specified is not supported\n", "Present mode unsupported");
}
// 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 maxImageCount is 0, we can ask for as many images as we want,
// otherwise
// we're limited to maxImageCount
if ((surfCapabilities.maxImageCount > 0) &&
(desiredNumberOfSwapchainImages > surfCapabilities.maxImageCount)) {
// Application must settle for fewer images than desired:
desiredNumberOfSwapchainImages = surfCapabilities.maxImageCount;
}
vk::SurfaceTransformFlagBitsKHR preTransform;
if (surfCapabilities.supportedTransforms &
vk::SurfaceTransformFlagBitsKHR::eIdentity) {
preTransform = vk::SurfaceTransformFlagBitsKHR::eIdentity;
} else {
preTransform = surfCapabilities.currentTransform;
}
auto const swapchain_ci =
vk::SwapchainCreateInfoKHR()
.setSurface(surface)
.setMinImageCount(desiredNumberOfSwapchainImages)
.setImageFormat(format)
.setImageColorSpace(color_space)
.setImageExtent({swapchainExtent.width, swapchainExtent.height})
.setImageArrayLayers(1)
.setImageUsage(vk::ImageUsageFlagBits::eColorAttachment)
.setImageSharingMode(vk::SharingMode::eExclusive)
.setQueueFamilyIndexCount(0)
.setPQueueFamilyIndices(nullptr)
.setPreTransform(preTransform)
.setCompositeAlpha(vk::CompositeAlphaFlagBitsKHR::eOpaque)
.setPresentMode(swapchainPresentMode)
.setClipped(true)
.setOldSwapchain(oldSwapchain);
result = device.createSwapchainKHR(&swapchain_ci, nullptr, &swapchain);
VERIFY(result == vk::Result::eSuccess);
// 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) {
device.destroySwapchainKHR(oldSwapchain, nullptr);
}
result = device.getSwapchainImagesKHR(swapchain, &swapchainImageCount,
nullptr);
VERIFY(result == vk::Result::eSuccess);
std::unique_ptr<vk::Image[]> swapchainImages(
new vk::Image[swapchainImageCount]);
result = device.getSwapchainImagesKHR(swapchain, &swapchainImageCount,
swapchainImages.get());
VERIFY(result == vk::Result::eSuccess);
buffers.reset(new SwapchainBuffers[swapchainImageCount]);
for (uint32_t i = 0; i < swapchainImageCount; ++i) {
auto const color_image_view =
vk::ImageViewCreateInfo()
.setImage(swapchainImages[i])
.setViewType(vk::ImageViewType::e2D)
.setFormat(format)
.setSubresourceRange(vk::ImageSubresourceRange(
vk::ImageAspectFlagBits::eColor, 0, 1, 0, 1));
buffers[i].image = swapchainImages[i];
result = device.createImageView(&color_image_view, nullptr,
&buffers[i].view);
VERIFY(result == vk::Result::eSuccess);
}
}
void prepare_cube_data_buffer() {
mat4x4 VP;
mat4x4_mul(VP, projection_matrix, view_matrix);
mat4x4 MVP;
mat4x4_mul(MVP, VP, model_matrix);
vktexcube_vs_uniform data;
memcpy(data.mvp, MVP, sizeof(MVP));
// dumpMatrix("MVP", MVP)
for (int32_t i = 0; i < 12 * 3; i++) {
data.position[i][0] = g_vertex_buffer_data[i * 3];
data.position[i][1] = g_vertex_buffer_data[i * 3 + 1];
data.position[i][2] = g_vertex_buffer_data[i * 3 + 2];
data.position[i][3] = 1.0f;
data.attr[i][0] = g_uv_buffer_data[2 * i];
data.attr[i][1] = g_uv_buffer_data[2 * i + 1];
data.attr[i][2] = 0;
data.attr[i][3] = 0;
}
auto const buf_info =
vk::BufferCreateInfo()
.setSize(sizeof(data))
.setUsage(vk::BufferUsageFlagBits::eUniformBuffer);
auto result =
device.createBuffer(&buf_info, nullptr, &uniform_data.buf);
VERIFY(result == vk::Result::eSuccess);
vk::MemoryRequirements mem_reqs;
device.getBufferMemoryRequirements(uniform_data.buf, &mem_reqs);
uniform_data.mem_alloc.setAllocationSize(mem_reqs.size);
uniform_data.mem_alloc.setMemoryTypeIndex(0);
bool const pass = memory_type_from_properties(
mem_reqs.memoryTypeBits,
vk::MemoryPropertyFlagBits::eHostVisible |
vk::MemoryPropertyFlagBits::eHostCoherent,
&uniform_data.mem_alloc.memoryTypeIndex);
VERIFY(pass);
result = device.allocateMemory(&uniform_data.mem_alloc, nullptr,
&(uniform_data.mem));
VERIFY(result == vk::Result::eSuccess);
auto pData = device.mapMemory(uniform_data.mem, 0,
uniform_data.mem_alloc.allocationSize,
vk::MemoryMapFlags());
VERIFY(pData.result == vk::Result::eSuccess);
memcpy(pData.value, &data, sizeof data);
device.unmapMemory(uniform_data.mem);
result = device.bindBufferMemory(uniform_data.buf, uniform_data.mem, 0);
VERIFY(result == vk::Result::eSuccess);
uniform_data.buffer_info.buffer = uniform_data.buf;
uniform_data.buffer_info.offset = 0;
uniform_data.buffer_info.range = sizeof(data);
}
void prepare_depth() {
depth.format = vk::Format::eD16Unorm;
auto const image =
vk::ImageCreateInfo()
.setImageType(vk::ImageType::e2D)
.setFormat(depth.format)
.setExtent({(uint32_t)width, (uint32_t)height, 1})
.setMipLevels(1)
.setArrayLayers(1)
.setSamples(vk::SampleCountFlagBits::e1)
.setTiling(vk::ImageTiling::eOptimal)
.setUsage(vk::ImageUsageFlagBits::eDepthStencilAttachment)
.setSharingMode(vk::SharingMode::eExclusive)
.setQueueFamilyIndexCount(0)
.setPQueueFamilyIndices(nullptr)
.setInitialLayout(vk::ImageLayout::eUndefined);
auto result = device.createImage(&image, nullptr, &depth.image);
VERIFY(result == vk::Result::eSuccess);
vk::MemoryRequirements mem_reqs;
device.getImageMemoryRequirements(depth.image, &mem_reqs);
depth.mem_alloc.setAllocationSize(mem_reqs.size);
depth.mem_alloc.setMemoryTypeIndex(0);
auto const pass = memory_type_from_properties(
mem_reqs.memoryTypeBits, vk::MemoryPropertyFlagBits(0),
&depth.mem_alloc.memoryTypeIndex);
VERIFY(pass);
result = device.allocateMemory(&depth.mem_alloc, nullptr, &depth.mem);
VERIFY(result == vk::Result::eSuccess);
result = device.bindImageMemory(depth.image, depth.mem, 0);
VERIFY(result == vk::Result::eSuccess);
auto const view = vk::ImageViewCreateInfo()
.setImage(depth.image)
.setViewType(vk::ImageViewType::e2D)
.setFormat(depth.format)
.setSubresourceRange(vk::ImageSubresourceRange(
vk::ImageAspectFlagBits::eDepth, 0, 1, 0, 1));
result = device.createImageView(&view, nullptr, &depth.view);
VERIFY(result == vk::Result::eSuccess);
}
void prepare_descriptor_layout() {
vk::DescriptorSetLayoutBinding const layout_bindings[2] = {
vk::DescriptorSetLayoutBinding()
.setBinding(0)
.setDescriptorType(vk::DescriptorType::eUniformBuffer)
.setDescriptorCount(1)
.setStageFlags(vk::ShaderStageFlagBits::eVertex)
.setPImmutableSamplers(nullptr),
vk::DescriptorSetLayoutBinding()
.setBinding(1)
.setDescriptorType(vk::DescriptorType::eCombinedImageSampler)
.setDescriptorCount(texture_count)
.setStageFlags(vk::ShaderStageFlagBits::eFragment)
.setPImmutableSamplers(nullptr)};
auto const descriptor_layout =
vk::DescriptorSetLayoutCreateInfo().setBindingCount(2).setPBindings(
layout_bindings);
auto result = device.createDescriptorSetLayout(&descriptor_layout,
nullptr, &desc_layout);
VERIFY(result == vk::Result::eSuccess);
auto const pPipelineLayoutCreateInfo =
vk::PipelineLayoutCreateInfo().setSetLayoutCount(1).setPSetLayouts(
&desc_layout);
result = device.createPipelineLayout(&pPipelineLayoutCreateInfo,
nullptr, &pipeline_layout);
VERIFY(result == vk::Result::eSuccess);
}
void prepare_descriptor_pool() {
vk::DescriptorPoolSize const poolSizes[2] = {
vk::DescriptorPoolSize()
.setType(vk::DescriptorType::eUniformBuffer)
.setDescriptorCount(1),
vk::DescriptorPoolSize()
.setType(vk::DescriptorType::eCombinedImageSampler)
.setDescriptorCount(texture_count)};
auto const descriptor_pool = vk::DescriptorPoolCreateInfo()
.setMaxSets(1)
.setPoolSizeCount(2)
.setPPoolSizes(poolSizes);
auto result =
device.createDescriptorPool(&descriptor_pool, nullptr, &desc_pool);
VERIFY(result == vk::Result::eSuccess);
}
void prepare_descriptor_set() {
auto const alloc_info = vk::DescriptorSetAllocateInfo()
.setDescriptorPool(desc_pool)
.setDescriptorSetCount(1)
.setPSetLayouts(&desc_layout);
auto result = device.allocateDescriptorSets(&alloc_info, &desc_set);
VERIFY(result == vk::Result::eSuccess);
vk::DescriptorImageInfo tex_descs[texture_count];
for (uint32_t i = 0; i < texture_count; i++) {
tex_descs[i].setSampler(textures[i].sampler);
tex_descs[i].setImageView(textures[i].view);
tex_descs[i].setImageLayout(vk::ImageLayout::eGeneral);
}
vk::WriteDescriptorSet writes[2];
writes[0].setDstSet(desc_set);
writes[0].setDescriptorCount(1);
writes[0].setDescriptorType(vk::DescriptorType::eUniformBuffer);
writes[0].setPBufferInfo(&uniform_data.buffer_info);
writes[1].setDstSet(desc_set);
writes[1].setDstBinding(1);
writes[1].setDescriptorCount(texture_count);
writes[1].setDescriptorType(vk::DescriptorType::eCombinedImageSampler);
writes[1].setPImageInfo(tex_descs);
device.updateDescriptorSets(2, writes, 0, nullptr);
}
void prepare_framebuffers() {
vk::ImageView attachments[2];
attachments[1] = depth.view;
auto const fb_info = vk::FramebufferCreateInfo()
.setRenderPass(render_pass)
.setAttachmentCount(2)
.setPAttachments(attachments)
.setWidth((uint32_t)width)
.setHeight((uint32_t)height)
.setLayers(1);
framebuffers.reset(new vk::Framebuffer[swapchainImageCount]);
for (uint32_t i = 0; i < swapchainImageCount; i++) {
attachments[0] = buffers[i].view;
auto const result =
device.createFramebuffer(&fb_info, nullptr, &framebuffers[i]);
VERIFY(result == vk::Result::eSuccess);
}
}
vk::ShaderModule prepare_fs() {
size_t size = 0;
void *fragShaderCode = read_spv("cube-frag.spv", &size);
frag_shader_module = prepare_shader_module(fragShaderCode, size);
free(fragShaderCode);
return frag_shader_module;
}
void prepare_pipeline() {
vk::PipelineCacheCreateInfo const pipelineCacheInfo;
auto result = device.createPipelineCache(&pipelineCacheInfo, nullptr,
&pipelineCache);
VERIFY(result == vk::Result::eSuccess);
vk::PipelineShaderStageCreateInfo const shaderStageInfo[2] = {
vk::PipelineShaderStageCreateInfo()
.setStage(vk::ShaderStageFlagBits::eVertex)
.setModule(prepare_vs())
.setPName("main"),
vk::PipelineShaderStageCreateInfo()
.setStage(vk::ShaderStageFlagBits::eFragment)
.setModule(prepare_fs())
.setPName("main")};
vk::PipelineVertexInputStateCreateInfo const vertexInputInfo;
auto const inputAssemblyInfo =
vk::PipelineInputAssemblyStateCreateInfo().setTopology(
vk::PrimitiveTopology::eTriangleList);
// TODO: Where are pViewports and pScissors set?
auto const viewportInfo = vk::PipelineViewportStateCreateInfo()
.setViewportCount(1)
.setScissorCount(1);
auto const rasterizationInfo =
vk::PipelineRasterizationStateCreateInfo()
.setDepthClampEnable(VK_FALSE)
.setRasterizerDiscardEnable(VK_FALSE)
.setPolygonMode(vk::PolygonMode::eFill)
.setCullMode(vk::CullModeFlagBits::eBack)
.setFrontFace(vk::FrontFace::eCounterClockwise)
.setDepthBiasEnable(VK_FALSE)
.setLineWidth(1.0f);
auto const multisampleInfo = vk::PipelineMultisampleStateCreateInfo();
auto const stencilOp = vk::StencilOpState()
.setFailOp(vk::StencilOp::eKeep)
.setPassOp(vk::StencilOp::eKeep)
.setCompareOp(vk::CompareOp::eAlways);
auto const depthStencilInfo =
vk::PipelineDepthStencilStateCreateInfo()
.setDepthTestEnable(VK_TRUE)
.setDepthWriteEnable(VK_TRUE)
.setDepthCompareOp(vk::CompareOp::eLessOrEqual)
.setDepthBoundsTestEnable(VK_FALSE)
.setStencilTestEnable(VK_FALSE)
.setFront(stencilOp)
.setBack(stencilOp);
vk::PipelineColorBlendAttachmentState const colorBlendAttachments[1] = {
vk::PipelineColorBlendAttachmentState().setColorWriteMask(
vk::ColorComponentFlagBits::eR |
vk::ColorComponentFlagBits::eG |
vk::ColorComponentFlagBits::eB |
vk::ColorComponentFlagBits::eA)};
auto const colorBlendInfo = vk::PipelineColorBlendStateCreateInfo()
.setAttachmentCount(1)
.setPAttachments(colorBlendAttachments);
vk::DynamicState const dynamicStates[2] = {vk::DynamicState::eViewport,
vk::DynamicState::eScissor};
auto const dynamicStateInfo = vk::PipelineDynamicStateCreateInfo()
.setPDynamicStates(dynamicStates)
.setDynamicStateCount(2);
auto const pipeline = vk::GraphicsPipelineCreateInfo()
.setStageCount(2)
.setPStages(shaderStageInfo)
.setPVertexInputState(&vertexInputInfo)
.setPInputAssemblyState(&inputAssemblyInfo)
.setPViewportState(&viewportInfo)
.setPRasterizationState(&rasterizationInfo)
.setPMultisampleState(&multisampleInfo)
.setPDepthStencilState(&depthStencilInfo)
.setPColorBlendState(&colorBlendInfo)
.setPDynamicState(&dynamicStateInfo)
.setLayout(pipeline_layout)
.setRenderPass(render_pass);
result = device.createGraphicsPipelines(pipelineCache, 1, &pipeline,
nullptr, &this->pipeline);
VERIFY(result == vk::Result::eSuccess);
device.destroyShaderModule(frag_shader_module, nullptr);
device.destroyShaderModule(vert_shader_module, nullptr);
}
void prepare_render_pass() {
// The initial layout for the color and depth attachments will be LAYOUT_UNDEFINED
// because at the start of the renderpass, we don't care about their contents.
// At the start of the subpass, the color attachment's layout will be transitioned
// to LAYOUT_COLOR_ATTACHMENT_OPTIMAL and the depth stencil attachment's layout
// will be transitioned to LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL. At the end of
// the renderpass, the color attachment's layout will be transitioned to
// LAYOUT_PRESENT_SRC_KHR to be ready to present. This is all done as part of
// the renderpass, no barriers are necessary.
const vk::AttachmentDescription attachments[2] = {
vk::AttachmentDescription()
.setFormat(format)
.setSamples(vk::SampleCountFlagBits::e1)
.setLoadOp(vk::AttachmentLoadOp::eClear)
.setStoreOp(vk::AttachmentStoreOp::eStore)
.setStencilLoadOp(vk::AttachmentLoadOp::eDontCare)
.setStencilStoreOp(vk::AttachmentStoreOp::eDontCare)
.setInitialLayout(vk::ImageLayout::eUndefined)
.setFinalLayout(vk::ImageLayout::ePresentSrcKHR),
vk::AttachmentDescription()
.setFormat(depth.format)
.setSamples(vk::SampleCountFlagBits::e1)
.setLoadOp(vk::AttachmentLoadOp::eClear)
.setStoreOp(vk::AttachmentStoreOp::eDontCare)
.setStencilLoadOp(vk::AttachmentLoadOp::eDontCare)
.setStencilStoreOp(vk::AttachmentStoreOp::eDontCare)
.setInitialLayout(
vk::ImageLayout::eUndefined)
.setFinalLayout(
vk::ImageLayout::eDepthStencilAttachmentOptimal)};
auto const color_reference =
vk::AttachmentReference().setAttachment(0).setLayout(
vk::ImageLayout::eColorAttachmentOptimal);
auto const depth_reference =
vk::AttachmentReference().setAttachment(1).setLayout(
vk::ImageLayout::eDepthStencilAttachmentOptimal);
auto const subpass =
vk::SubpassDescription()
.setPipelineBindPoint(vk::PipelineBindPoint::eGraphics)
.setInputAttachmentCount(0)
.setPInputAttachments(nullptr)
.setColorAttachmentCount(1)
.setPColorAttachments(&color_reference)
.setPResolveAttachments(nullptr)
.setPDepthStencilAttachment(&depth_reference)
.setPreserveAttachmentCount(0)
.setPPreserveAttachments(nullptr);
auto const rp_info = vk::RenderPassCreateInfo()
.setAttachmentCount(2)
.setPAttachments(attachments)
.setSubpassCount(1)
.setPSubpasses(&subpass)
.setDependencyCount(0)
.setPDependencies(nullptr);
auto result = device.createRenderPass(&rp_info, nullptr, &render_pass);
VERIFY(result == vk::Result::eSuccess);
}
vk::ShaderModule prepare_shader_module(const void *code, size_t size) {
auto const moduleCreateInfo =
vk::ShaderModuleCreateInfo().setCodeSize(size).setPCode(
(uint32_t const *)code);
vk::ShaderModule module;
auto result =
device.createShaderModule(&moduleCreateInfo, nullptr, &module);
VERIFY(result == vk::Result::eSuccess);
return module;
}
void prepare_texture_image(const char *filename, texture_object *tex_obj,
vk::ImageTiling tiling,
vk::ImageUsageFlags usage,
vk::MemoryPropertyFlags required_props) {
int32_t tex_width;
int32_t tex_height;
if (!loadTexture(filename, nullptr, nullptr, &tex_width, &tex_height)) {
ERR_EXIT("Failed to load textures", "Load Texture Failure");
}
tex_obj->tex_width = tex_width;
tex_obj->tex_height = tex_height;
auto const image_create_info =
vk::ImageCreateInfo()
.setImageType(vk::ImageType::e2D)
.setFormat(vk::Format::eR8G8B8A8Unorm)
.setExtent({(uint32_t)tex_width, (uint32_t)tex_height, 1})
.setMipLevels(1)
.setArrayLayers(1)
.setSamples(vk::SampleCountFlagBits::e1)
.setTiling(tiling)
.setUsage(usage)
.setSharingMode(vk::SharingMode::eExclusive)
.setQueueFamilyIndexCount(0)
.setPQueueFamilyIndices(nullptr)
.setInitialLayout(vk::ImageLayout::ePreinitialized);
auto result =
device.createImage(&image_create_info, nullptr, &tex_obj->image);
VERIFY(result == vk::Result::eSuccess);
vk::MemoryRequirements mem_reqs;
device.getImageMemoryRequirements(tex_obj->image, &mem_reqs);
tex_obj->mem_alloc.setAllocationSize(mem_reqs.size);
tex_obj->mem_alloc.setMemoryTypeIndex(0);
auto pass =
memory_type_from_properties(mem_reqs.memoryTypeBits, required_props,
&tex_obj->mem_alloc.memoryTypeIndex);
VERIFY(pass == true);
result = device.allocateMemory(&tex_obj->mem_alloc, nullptr,
&(tex_obj->mem));
VERIFY(result == vk::Result::eSuccess);
result = device.bindImageMemory(tex_obj->image, tex_obj->mem, 0);
VERIFY(result == vk::Result::eSuccess);
if (required_props & vk::MemoryPropertyFlagBits::eHostVisible) {
auto const subres =
vk::ImageSubresource()
.setAspectMask(vk::ImageAspectFlagBits::eColor)
.setMipLevel(0)
.setArrayLayer(0);
vk::SubresourceLayout layout;
device.getImageSubresourceLayout(tex_obj->image, &subres, &layout);
auto data = device.mapMemory(tex_obj->mem, 0,
tex_obj->mem_alloc.allocationSize);
VERIFY(data.result == vk::Result::eSuccess);
if (!loadTexture(filename, (uint8_t *)data.value, &layout,
&tex_width, &tex_height)) {
fprintf(stderr, "Error loading texture: %s\n", filename);
}
device.unmapMemory(tex_obj->mem);
}
tex_obj->imageLayout = vk::ImageLayout::eShaderReadOnlyOptimal;
}
void prepare_textures() {
vk::Format const tex_format = vk::Format::eR8G8B8A8Unorm;
vk::FormatProperties props;
gpu.getFormatProperties(tex_format, &props);
for (uint32_t i = 0; i < texture_count; i++) {
if ((props.linearTilingFeatures &
vk::FormatFeatureFlagBits::eSampledImage) &&
!use_staging_buffer) {
/* Device can texture using linear textures */
prepare_texture_image(
tex_files[i], &textures[i], vk::ImageTiling::eLinear,
vk::ImageUsageFlagBits::eSampled,
vk::MemoryPropertyFlagBits::eHostVisible |
vk::MemoryPropertyFlagBits::eHostCoherent);
// Nothing in the pipeline needs to be complete to start, and don't allow fragment
// shader to run until layout transition completes
set_image_layout(textures[i].image, vk::ImageAspectFlagBits::eColor,
vk::ImageLayout::ePreinitialized, textures[i].imageLayout,
vk::AccessFlagBits::eHostWrite, vk::PipelineStageFlagBits::eTopOfPipe,
vk::PipelineStageFlagBits::eFragmentShader);
staging_texture.image = vk::Image();
} else if (props.optimalTilingFeatures &
vk::FormatFeatureFlagBits::eSampledImage) {
/* Must use staging buffer to copy linear texture to optimized */
prepare_texture_image(
tex_files[i], &staging_texture, vk::ImageTiling::eLinear,
vk::ImageUsageFlagBits::eTransferSrc,
vk::MemoryPropertyFlagBits::eHostVisible |
vk::MemoryPropertyFlagBits::eHostCoherent);
prepare_texture_image(tex_files[i], &textures[i],
vk::ImageTiling::eOptimal,
vk::ImageUsageFlagBits::eTransferDst |
vk::ImageUsageFlagBits::eSampled,
vk::MemoryPropertyFlagBits::eDeviceLocal);
set_image_layout(
staging_texture.image, vk::ImageAspectFlagBits::eColor,
vk::ImageLayout::ePreinitialized,
vk::ImageLayout::eTransferSrcOptimal,
vk::AccessFlagBits::eHostWrite,
vk::PipelineStageFlagBits::eTopOfPipe,
vk::PipelineStageFlagBits::eTransfer);
set_image_layout(
textures[i].image, vk::ImageAspectFlagBits::eColor,
vk::ImageLayout::ePreinitialized,
vk::ImageLayout::eTransferDstOptimal,
vk::AccessFlagBits::eHostWrite,
vk::PipelineStageFlagBits::eTopOfPipe,
vk::PipelineStageFlagBits::eTransfer);
auto const subresource =
vk::ImageSubresourceLayers()
.setAspectMask(vk::ImageAspectFlagBits::eColor)
.setMipLevel(0)
.setBaseArrayLayer(0)
.setLayerCount(1);
auto const copy_region =
vk::ImageCopy()
.setSrcSubresource(subresource)
.setSrcOffset({0, 0, 0})
.setDstSubresource(subresource)
.setDstOffset({0, 0, 0})
.setExtent({(uint32_t)staging_texture.tex_width,
(uint32_t)staging_texture.tex_height, 1});
cmd.copyImage(
staging_texture.image, vk::ImageLayout::eTransferSrcOptimal,
textures[i].image, vk::ImageLayout::eTransferDstOptimal, 1,
&copy_region);
set_image_layout(textures[i].image,
vk::ImageAspectFlagBits::eColor,
vk::ImageLayout::eTransferDstOptimal,
textures[i].imageLayout,
vk::AccessFlagBits::eTransferWrite,
vk::PipelineStageFlagBits::eTransfer,
vk::PipelineStageFlagBits::eFragmentShader);
} else {
assert(
!"No support for R8G8B8A8_UNORM as texture image format");
}
auto const samplerInfo =
vk::SamplerCreateInfo()
.setMagFilter(vk::Filter::eNearest)
.setMinFilter(vk::Filter::eNearest)
.setMipmapMode(vk::SamplerMipmapMode::eNearest)
.setAddressModeU(vk::SamplerAddressMode::eClampToEdge)
.setAddressModeV(vk::SamplerAddressMode::eClampToEdge)
.setAddressModeW(vk::SamplerAddressMode::eClampToEdge)
.setMipLodBias(0.0f)
.setAnisotropyEnable(VK_FALSE)
.setMaxAnisotropy(1)
.setCompareEnable(VK_FALSE)
.setCompareOp(vk::CompareOp::eNever)
.setMinLod(0.0f)
.setMaxLod(0.0f)
.setBorderColor(vk::BorderColor::eFloatOpaqueWhite)
.setUnnormalizedCoordinates(VK_FALSE);
auto result = device.createSampler(&samplerInfo, nullptr,
&textures[i].sampler);
VERIFY(result == vk::Result::eSuccess);
auto const viewInfo =
vk::ImageViewCreateInfo()
.setImage(textures[i].image)
.setViewType(vk::ImageViewType::e2D)
.setFormat(tex_format)
.setSubresourceRange(vk::ImageSubresourceRange(
vk::ImageAspectFlagBits::eColor, 0, 1, 0, 1));
result =
device.createImageView(&viewInfo, nullptr, &textures[i].view);
VERIFY(result == vk::Result::eSuccess);
}
}
vk::ShaderModule prepare_vs() {
size_t size = 0;
void *vertShaderCode = read_spv("cube-vert.spv", &size);
vert_shader_module = prepare_shader_module(vertShaderCode, size);
free(vertShaderCode);
return vert_shader_module;
}
char *read_spv(const char *filename, size_t *psize) {
FILE *fp = fopen(filename, "rb");
if (!fp) {
return nullptr;
}
fseek(fp, 0L, SEEK_END);
long int size = ftell(fp);
fseek(fp, 0L, SEEK_SET);
void *shader_code = malloc(size);
size_t retval = fread(shader_code, size, 1, fp);
VERIFY(retval == 1);
*psize = size;
fclose(fp);
return (char *)shader_code;
}
void resize() {
uint32_t i;
// Don't react to resize until after first initialization.
if (!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 cleanup() function:
prepared = false;
auto result = device.waitIdle();
VERIFY(result == vk::Result::eSuccess);
for (i = 0; i < swapchainImageCount; i++) {
device.destroyFramebuffer(framebuffers[i], nullptr);
}
device.destroyDescriptorPool(desc_pool, nullptr);
device.destroyPipeline(pipeline, nullptr);
device.destroyPipelineCache(pipelineCache, nullptr);
device.destroyRenderPass(render_pass, nullptr);
device.destroyPipelineLayout(pipeline_layout, nullptr);
device.destroyDescriptorSetLayout(desc_layout, nullptr);
for (i = 0; i < texture_count; i++) {
device.destroyImageView(textures[i].view, nullptr);
device.destroyImage(textures[i].image, nullptr);
device.freeMemory(textures[i].mem, nullptr);
device.destroySampler(textures[i].sampler, nullptr);
}
device.destroyImageView(depth.view, nullptr);
device.destroyImage(depth.image, nullptr);
device.freeMemory(depth.mem, nullptr);
device.destroyBuffer(uniform_data.buf, nullptr);
device.freeMemory(uniform_data.mem, nullptr);
for (i = 0; i < swapchainImageCount; i++) {
device.destroyImageView(buffers[i].view, nullptr);
device.freeCommandBuffers(cmd_pool, 1, &buffers[i].cmd);
}
device.destroyCommandPool(cmd_pool, nullptr);
if (separate_present_queue) {
device.destroyCommandPool(present_cmd_pool, nullptr);
}
// Second, re-perform the prepare() function, which will re-create the
// swapchain.
prepare();
}
void set_image_layout(vk::Image image, vk::ImageAspectFlags aspectMask,
vk::ImageLayout oldLayout, vk::ImageLayout newLayout,
vk::AccessFlags srcAccessMask,
vk::PipelineStageFlags src_stages,
vk::PipelineStageFlags dest_stages) {
assert(cmd);
auto DstAccessMask = [](vk::ImageLayout const &layout) {
vk::AccessFlags flags;
switch (layout) {
case vk::ImageLayout::eTransferDstOptimal:
// Make sure anything that was copying from this image has
// completed
flags = vk::AccessFlagBits::eTransferWrite;
break;
case vk::ImageLayout::eColorAttachmentOptimal:
flags = vk::AccessFlagBits::eColorAttachmentWrite;
break;
case vk::ImageLayout::eDepthStencilAttachmentOptimal:
flags = vk::AccessFlagBits::eDepthStencilAttachmentWrite;
break;
case vk::ImageLayout::eShaderReadOnlyOptimal:
// Make sure any Copy or CPU writes to image are flushed
flags = vk::AccessFlagBits::eShaderRead |
vk::AccessFlagBits::eInputAttachmentRead;
break;
case vk::ImageLayout::eTransferSrcOptimal:
flags = vk::AccessFlagBits::eTransferRead;
break;
case vk::ImageLayout::ePresentSrcKHR:
flags = vk::AccessFlagBits::eMemoryRead;
break;
default:
break;
}
return flags;
};
auto const barrier = vk::ImageMemoryBarrier()
.setSrcAccessMask(srcAccessMask)
.setDstAccessMask(DstAccessMask(newLayout))
.setOldLayout(oldLayout)
.setNewLayout(newLayout)
.setSrcQueueFamilyIndex(0)
.setDstQueueFamilyIndex(0)
.setImage(image)
.setSubresourceRange(vk::ImageSubresourceRange(
aspectMask, 0, 1, 0, 1));
cmd.pipelineBarrier(src_stages, dest_stages, vk::DependencyFlagBits(),
0, nullptr, 0, nullptr, 1, &barrier);
}
void update_data_buffer() {
mat4x4 VP;
mat4x4_mul(VP, projection_matrix, view_matrix);
// Rotate 22.5 degrees around the Y axis
mat4x4 Model;
mat4x4_dup(Model, model_matrix);
mat4x4_rotate(model_matrix, Model, 0.0f, 1.0f, 0.0f,
(float)degreesToRadians(spin_angle));
mat4x4 MVP;
mat4x4_mul(MVP, VP, model_matrix);
auto data = device.mapMemory(uniform_data.mem, 0,
uniform_data.mem_alloc.allocationSize,
vk::MemoryMapFlags());
VERIFY(data.result == vk::Result::eSuccess);
memcpy(data.value, (const void *)&MVP[0][0], sizeof(MVP));
device.unmapMemory(uniform_data.mem);
}
bool loadTexture(const char *filename, uint8_t *rgba_data,
vk::SubresourceLayout *layout, int32_t *width,
int32_t *height) {
FILE *fPtr = fopen(filename, "rb");
if (!fPtr) {
return false;
}
char header[256];
char *cPtr = fgets(header, 256, fPtr); // P6
if (cPtr == nullptr || strncmp(header, "P6\n", 3)) {
fclose(fPtr);
return false;
}
do {
cPtr = fgets(header, 256, fPtr);
if (cPtr == nullptr) {
fclose(fPtr);
return false;
}
} while (!strncmp(header, "#", 1));
sscanf(header, "%u %u", width, height);
if (rgba_data == nullptr) {
fclose(fPtr);
return true;
}
char *result = fgets(header, 256, fPtr); // Format
VERIFY(result != nullptr);
if (cPtr == nullptr || strncmp(header, "255\n", 3)) {
fclose(fPtr);
return false;
}
for (int y = 0; y < *height; y++) {
uint8_t *rowPtr = rgba_data;
for (int x = 0; x < *width; x++) {
size_t s = fread(rowPtr, 3, 1, fPtr);
(void)s;
rowPtr[3] = 255; /* Alpha of 1 */
rowPtr += 4;
}
rgba_data += layout->rowPitch;
}
fclose(fPtr);
return true;
}
bool memory_type_from_properties(uint32_t typeBits,
vk::MemoryPropertyFlags requirements_mask,
uint32_t *typeIndex) {
// Search memtypes to find first index with those properties
for (uint32_t i = 0; i < VK_MAX_MEMORY_TYPES; i++) {
if ((typeBits & 1) == 1) {
// Type is available, does it match user properties?
if ((memory_properties.memoryTypes[i].propertyFlags &
requirements_mask) == requirements_mask) {
*typeIndex = i;
return true;
}
}
typeBits >>= 1;
}
// No memory types matched, return failure
return false;
}
#if defined(VK_USE_PLATFORM_WIN32_KHR)
void run() {
if (!prepared) {
return;
}
update_data_buffer();
draw();
curFrame++;
if (frameCount != INT_MAX && curFrame == frameCount) {
PostQuitMessage(validation_error);
}
}
void create_window() {
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 = connection; // hInstance
win_class.hIcon = LoadIcon(nullptr, IDI_APPLICATION);
win_class.hCursor = LoadCursor(nullptr, IDC_ARROW);
win_class.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
win_class.lpszMenuName = nullptr;
win_class.lpszClassName = name;
win_class.hIconSm = LoadIcon(nullptr, 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, static_cast<LONG>(width), static_cast<LONG>(height)};
AdjustWindowRect(&wr, WS_OVERLAPPEDWINDOW, FALSE);
window = CreateWindowEx(0,
name, // class name
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
nullptr, // handle to parent
nullptr, // handle to menu
connection, // hInstance
nullptr); // no extra parameters
if (!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);
}
// Window client area size must be at least 1 pixel high, to prevent
// crash.
minsize.x = GetSystemMetrics(SM_CXMINTRACK);
minsize.y = GetSystemMetrics(SM_CYMINTRACK) + 1;
}
#elif defined(VK_USE_PLATFORM_XLIB_KHR) || defined(VK_USE_PLATFORM_XCB_KHR)
#if defined(VK_USE_PLATFORM_XLIB_KHR)
void create_xlib_window() {
display = XOpenDisplay(nullptr);
long visualMask = VisualScreenMask;
int numberOfVisuals;
XVisualInfo vInfoTemplate = {};
vInfoTemplate.screen = DefaultScreen(display);
XVisualInfo *visualInfo = XGetVisualInfo(
display, visualMask, &vInfoTemplate, &numberOfVisuals);
Colormap colormap =
XCreateColormap(display, RootWindow(display, vInfoTemplate.screen),
visualInfo->visual, AllocNone);
XSetWindowAttributes windowAttributes = {};
windowAttributes.colormap = colormap;
windowAttributes.background_pixel = 0xFFFFFFFF;
windowAttributes.border_pixel = 0;
windowAttributes.event_mask =
KeyPressMask | KeyReleaseMask | StructureNotifyMask | ExposureMask;
xlib_window = XCreateWindow(
display, RootWindow(display, vInfoTemplate.screen), 0, 0, width,
height, 0, visualInfo->depth, InputOutput, visualInfo->visual,
CWBackPixel | CWBorderPixel | CWEventMask | CWColormap,
&windowAttributes);
XSelectInput(display, xlib_window, ExposureMask | KeyPressMask);
XMapWindow(display, xlib_window);
XFlush(display);
xlib_wm_delete_window = XInternAtom(display, "WM_DELETE_WINDOW", False);
}
void handle_xlib_event(const XEvent *event) {
switch (event->type) {
case ClientMessage:
if ((Atom)event->xclient.data.l[0] == xlib_wm_delete_window) {
quit = true;
}
break;
case KeyPress:
switch (event->xkey.keycode) {
case 0x9: // Escape
quit = true;
break;
case 0x71: // left arrow key
spin_angle += spin_increment;
break;
case 0x72: // right arrow key
spin_angle -= spin_increment;
break;
case 0x41:
pause = !pause;
break;
}
break;
case ConfigureNotify:
if (((int32_t)width != event->xconfigure.width) ||
((int32_t)height != event->xconfigure.height)) {
width = event->xconfigure.width;
height = event->xconfigure.height;
resize();
}
break;
default:
break;
}
}
void run_xlib() {
while (!quit) {
XEvent event;
if (pause) {
XNextEvent(display, &event);
handle_xlib_event(&event);
} else {
while (XPending(display) > 0) {
XNextEvent(display, &event);
handle_xlib_event(&event);
}
}
update_data_buffer();
draw();
curFrame++;
if (frameCount != UINT32_MAX && curFrame == frameCount) {
quit = true;
}
}
}
#endif
#if defined(VK_USE_PLATFORM_XCB_KHR)
void handle_xcb_event(const xcb_generic_event_t *event) {
uint8_t event_code = event->response_type & 0x7f;
switch (event_code) {
case XCB_EXPOSE:
// TODO: Resize window
break;
case XCB_CLIENT_MESSAGE:
if ((*(xcb_client_message_event_t *)event).data.data32[0] ==
(*atom_wm_delete_window).atom) {
quit = true;
}
break;
case XCB_KEY_RELEASE: {
const xcb_key_release_event_t *key =
(const xcb_key_release_event_t *)event;
switch (key->detail) {
case 0x9: // Escape
quit = true;
break;
case 0x71: // left arrow key
spin_angle += spin_increment;
break;
case 0x72: // right arrow key
spin_angle -= spin_increment;
break;
case 0x41:
pause = !pause;
break;
}
} break;
case XCB_CONFIGURE_NOTIFY: {
const xcb_configure_notify_event_t *cfg =
(const xcb_configure_notify_event_t *)event;
if ((width != cfg->width) || (height != cfg->height)) {
width = cfg->width;
height = cfg->height;
resize();
}
} break;
default:
break;
}
}
void run_xcb() {
xcb_flush(connection);
while (!quit) {
xcb_generic_event_t *event;
if (pause) {
event = xcb_wait_for_event(connection);
} else {
event = xcb_poll_for_event(connection);
while (event) {
handle_xcb_event(event);
free(event);
event = xcb_poll_for_event(connection);
}
}
update_data_buffer();
draw();
curFrame++;
if (frameCount != UINT32_MAX && curFrame == frameCount) {
quit = true;
}
}
}
void create_xcb_window() {
uint32_t value_mask, value_list[32];
xcb_window = xcb_generate_id(connection);
value_mask = XCB_CW_BACK_PIXEL | XCB_CW_EVENT_MASK;
value_list[0] = screen->black_pixel;
value_list[1] = XCB_EVENT_MASK_KEY_RELEASE | XCB_EVENT_MASK_EXPOSURE |
XCB_EVENT_MASK_STRUCTURE_NOTIFY;
xcb_create_window(connection, XCB_COPY_FROM_PARENT, xcb_window,
screen->root, 0, 0, width, height, 0,
XCB_WINDOW_CLASS_INPUT_OUTPUT, 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(connection, 1, 12, "WM_PROTOCOLS");
xcb_intern_atom_reply_t *reply =
xcb_intern_atom_reply(connection, cookie, 0);
xcb_intern_atom_cookie_t cookie2 =
xcb_intern_atom(connection, 0, 16, "WM_DELETE_WINDOW");
atom_wm_delete_window = xcb_intern_atom_reply(connection, cookie2, 0);
xcb_change_property(connection, XCB_PROP_MODE_REPLACE, xcb_window,
(*reply).atom, 4, 32, 1,
&(*atom_wm_delete_window).atom);
free(reply);
xcb_map_window(connection, xcb_window);
// Force the x/y coordinates to 100,100 results are identical in
// consecutive
// runs
const uint32_t coords[] = {100, 100};
xcb_configure_window(connection, xcb_window,
XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y, coords);
}
#endif
#elif defined(VK_USE_PLATFORM_WAYLAND_KHR)
void run() {
while (!quit) {
update_data_buffer();
draw();
curFrame++;
if (frameCount != UINT32_MAX && curFrame == frameCount) {
quit = true;
}
}
}
void create_window() {
window = wl_compositor_create_surface(compositor);
if (!window) {
printf("Can not create wayland_surface from compositor!\n");
fflush(stdout);
exit(1);
}
shell_surface = wl_shell_get_shell_surface(shell, window);
if (!shell_surface) {
printf("Can not get shell_surface from wayland_surface!\n");
fflush(stdout);
exit(1);
}
wl_shell_surface_add_listener(shell_surface, &shell_surface_listener,
this);
wl_shell_surface_set_toplevel(shell_surface);
wl_shell_surface_set_title(shell_surface, APP_SHORT_NAME);
}
#endif
#if defined(VK_USE_PLATFORM_WIN32_KHR)
HINSTANCE connection; // hInstance - Windows Instance
HWND window; // hWnd - window handle
POINT minsize; // minimum window size
char name[APP_NAME_STR_LEN]; // Name to put on the window/icon
#endif
#if defined(VK_USE_PLATFORM_XLIB_KHR)
Window xlib_window;
Atom xlib_wm_delete_window;
Display *display;
#endif
#if defined(VK_USE_PLATFORM_XCB_KHR)
xcb_window_t xcb_window;
xcb_screen_t *screen;
xcb_connection_t *connection;
xcb_intern_atom_reply_t *atom_wm_delete_window;
#endif
#if defined(VK_USE_PLATFORM_WAYLAND_KHR)
wl_display *display;
wl_registry *registry;
wl_compositor *compositor;
wl_surface *window;
wl_shell *shell;
wl_shell_surface *shell_surface;
#endif
vk::SurfaceKHR surface;
bool prepared;
bool use_staging_buffer;
bool use_xlib;
bool separate_present_queue;
vk::Instance inst;
vk::PhysicalDevice gpu;
vk::Device device;
vk::Queue graphics_queue;
vk::Queue present_queue;
uint32_t graphics_queue_family_index;
uint32_t present_queue_family_index;
vk::Semaphore image_acquired_semaphores[FRAME_LAG];
vk::Semaphore draw_complete_semaphores[FRAME_LAG];
vk::Semaphore image_ownership_semaphores[FRAME_LAG];
vk::PhysicalDeviceProperties gpu_props;
std::unique_ptr<vk::QueueFamilyProperties[]> queue_props;
vk::PhysicalDeviceMemoryProperties memory_properties;
uint32_t enabled_extension_count;
uint32_t enabled_layer_count;
char const *extension_names[64];
char const *enabled_layers[64];
uint32_t width;
uint32_t height;
vk::Format format;
vk::ColorSpaceKHR color_space;
uint32_t swapchainImageCount;
vk::SwapchainKHR swapchain;
std::unique_ptr<SwapchainBuffers[]> buffers;
vk::PresentModeKHR presentMode;
vk::Fence fences[FRAME_LAG];
uint32_t frame_index;
vk::CommandPool cmd_pool;
vk::CommandPool present_cmd_pool;
struct {
vk::Format format;
vk::Image image;
vk::MemoryAllocateInfo mem_alloc;
vk::DeviceMemory mem;
vk::ImageView view;
} depth;
static int32_t const texture_count = 1;
texture_object textures[texture_count];
texture_object staging_texture;
struct {
vk::Buffer buf;
vk::MemoryAllocateInfo mem_alloc;
vk::DeviceMemory mem;
vk::DescriptorBufferInfo buffer_info;
} uniform_data;
vk::CommandBuffer cmd; // Buffer for initialization commands
vk::PipelineLayout pipeline_layout;
vk::DescriptorSetLayout desc_layout;
vk::PipelineCache pipelineCache;
vk::RenderPass render_pass;
vk::Pipeline pipeline;
mat4x4 projection_matrix;
mat4x4 view_matrix;
mat4x4 model_matrix;
float spin_angle;
float spin_increment;
bool pause;
vk::ShaderModule vert_shader_module;
vk::ShaderModule frag_shader_module;
vk::DescriptorPool desc_pool;
vk::DescriptorSet desc_set;
std::unique_ptr<vk::Framebuffer[]> framebuffers;
bool quit;
uint32_t curFrame;
uint32_t frameCount;
bool validate;
bool use_break;
bool suppress_popups;
uint32_t current_buffer;
uint32_t queue_family_count;
};
#if _WIN32
// Include header required for parsing the command line options.
#include <shellapi.h>
Demo demo;
// MS-Windows event handling function:
LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
switch (uMsg) {
case WM_CLOSE:
PostQuitMessage(validation_error);
break;
case WM_PAINT:
demo.run();
break;
case WM_GETMINMAXINFO: // set window's minimum size
((MINMAXINFO *)lParam)->ptMinTrackSize = demo.minsize;
return 0;
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();
}
break;
default:
break;
}
return (DefWindowProc(hWnd, uMsg, wParam, lParam));
}
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR pCmdLine,
int nCmdShow) {
// TODO: Gah.. refactor. This isn't 1989.
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 (nullptr == commandLineArgs) {
argc = 0;
}
if (argc > 0) {
argv = (char **)malloc(sizeof(char *) * argc);
if (argv == nullptr) {
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] != nullptr) {
wcstombs_s(&numConverted, argv[iii], wideCharLen + 1,
commandLineArgs[iii], wideCharLen + 1);
}
}
}
} else {
argv = nullptr;
}
demo.init(argc, argv);
// Free up the items we had to allocate for the command line arguments.
if (argc > 0 && argv != nullptr) {
for (int iii = 0; iii < argc; iii++) {
if (argv[iii] != nullptr) {
free(argv[iii]);
}
}
free(argv);
}
demo.connection = hInstance;
strncpy(demo.name, "cube", APP_NAME_STR_LEN);
demo.create_window();
demo.init_vk_swapchain();
demo.prepare();
done = false; // initialize loop condition variable
// main message loop
while (!done) {
PeekMessage(&msg, nullptr, 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, nullptr, nullptr, RDW_INTERNALPAINT);
}
demo.cleanup();
return (int)msg.wParam;
}
#elif __linux__
#if defined(VK_USE_PLATFORM_WAYLAND_KHR)
static void handle_ping(void *data, wl_shell_surface *shell_surface,
uint32_t serial) {
wl_shell_surface_pong(shell_surface, serial);
}
static void handle_configure(void *data,
wl_shell_surface *shell_surface,
uint32_t edges, int32_t width,
int32_t height) {}
static void handle_popup_done(void *data,
wl_shell_surface *shell_surface) {}
static const wl_shell_surface_listener shell_surface_listener = {
handle_ping, handle_configure, handle_popup_done};
#endif
int main(int argc, char **argv) {
Demo demo;
demo.init(argc, argv);
#if defined(VK_USE_PLATFORM_XLIB_KHR) && defined(VK_USE_PLATFORM_XCB_KHR)
if (demo.use_xlib) {
demo.create_xlib_window();
} else {
demo.create_xcb_window();
}
#elif defined(VK_USE_PLATFORM_XCB_KHR)
demo.create_xcb_window();
#elif defined(VK_USE_PLATFORM_XLIB_KHR)
demo.use_xlib = true;
demo.create_xlib_window();
#elif defined(VK_USE_PLATFORM_WAYLAND_KHR)
demo.create_window();
#endif
demo.init_vk_swapchain();
demo.prepare();
#if defined(VK_USE_PLATFORM_XLIB_KHR) && defined(VK_USE_PLATFORM_XCB_KHR)
if (demo.use_xlib) {
demo.run_xlib();
} else {
demo.run_xcb();
}
#elif defined(VK_USE_PLATFORM_XCB_KHR)
demo.run_xcb();
#elif defined(VK_USE_PLATFORM_XLIB_KHR)
demo.run_xlib();
#elif defined(VK_USE_PLATFORM_WAYLAND_KHR)
demo.run();
#endif
demo.cleanup();
return validation_error;
}
#else
#error "Platform not supported"
#endif