--- /dev/null
+#include <stdio.h>
+
+#define GLFW_INCLUDE_VULKAN
+#include <GLFW/glfw3.h>
+
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+
+/* extern "C": vulkan framework */
+#include "vk.h"
+#include "util.h"
+
+/* defines */
+#define FENCE_TIMEOUT UINT64_MAX
+
+/**************************/
+/* static glfw callbacks */
+/**************************/
+
+static void
+clb_key(GLFWwindow *win, int key, int scancode, int action, int mods);
+
+static void
+clb_reshape(GLFWwindow *win, int width, int height);
+
+static void
+clb_motion(GLFWwindow *win, double x, double y);
+
+static void
+clb_mouse(GLFWwindow *win, int button, int action, int mods);
+
+/**************************/
+/* static functions */
+/**************************/
+
+/* init, cleanup, display */
+
+static bool
+init();
+
+static void
+cleanup();
+
+static void
+display();
+
+/* vulkan, glfw */
+
+static bool
+vk_init();
+
+static bool
+vk_create_sync_objects();
+
+static void
+vk_cleanup();
+
+/***************************/
+/* static/global variables */
+/***************************/
+
+static GLFWwindow *win;
+/* static bool redraw_pending; */
+static bool move_camera;
+
+/* camera */
+static float cam_phi = 25;
+static float cam_theta = 0;
+static float cam_dist = 16;
+
+#if 0
+static Vec3 cam_pos;
+static OrbitCamera *camera;
+static Mat4 mproj;
+#endif
+
+static float aspect;
+
+/* win etc */
+static int win_w = 800;
+static int win_h = 600;
+
+/* vulkan */
+static bool vk_enable_layers = true;
+static struct vk_ctx vk_core;
+static VkSurfaceKHR vk_surf;
+
+static struct vk_swapchain vk_chain;
+static uint32_t vk_current_image;
+static int vk_frame_idx;
+static VkFramebuffer *vk_framebuffers;
+
+/* for the moment: one cmd buffer per swapchain image */
+static VkCommandBuffer *vk_cmd_buffers;
+static VkFence *vk_fences;
+static struct vk_semaphores *vk_semas;
+
+/* FIXME make them part of each object's functions/params */
+static struct vk_renderer vk_rnd;
+static struct vk_attachment vk_depth_att;
+static float vk_fb_color[4] = { 0.0, 0.0, 0.5, 1.0 };
+
+/* empty for as long as we hardcode the vertices in the vertex shader */
+#if 0
+static struct vk_vertex_info vk_vert_info;
+#endif
+
+int main(int argc, char** argv)
+{
+ atexit(cleanup);
+
+ /***********************************************************
+ * GLFW
+ ***********************************************************/
+
+ if (!glfwInit()) {
+ fprintf(stderr, "Failed to initialize GLFW.\n");
+ return 1;
+ }
+
+ if (glfwVulkanSupported() != GLFW_TRUE) {
+ fprintf(stderr, "Vulkan is not supported on this device.\n");
+ return 1;
+ }
+
+ glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API);
+ glfwWindowHint(GLFW_RESIZABLE, GLFW_TRUE);
+ if (!(win = glfwCreateWindow(win_w, win_h, "helloworld rt", 0, 0))) {
+ fprintf(stderr, "Failed to create GLFW window\n");
+ return 1;
+ }
+
+ glfwSetKeyCallback(win, clb_key);
+ glfwSetWindowSizeCallback(win, clb_reshape);
+ glfwSetCursorPosCallback(win, clb_motion);
+ glfwSetMouseButtonCallback(win, clb_mouse);
+
+ /***********************************************************
+ * VULKAN context
+ ***********************************************************/
+
+ if (!vk_init_ctx_for_rendering(&vk_core, true, vk_enable_layers)) {
+ fprintf(stderr, "Failed to initialize Vulkan context.\n");
+ return 1;
+ }
+
+ /***********************************************************
+ * XCB/GLFW surface
+ ***********************************************************/
+
+ glfwGetFramebufferSize(win, &win_h, &win_h);
+ if (glfwCreateWindowSurface(vk_core.inst, win, 0, &vk_surf)
+ != VK_SUCCESS) {
+ fprintf(stderr, "Failed to create XCB surface.\n");
+ return 1;
+ }
+
+ /***********************************************************
+ * Initialize Vulkan structs
+ ***********************************************************/
+
+ if (!vk_init()) {
+ return 1;
+ }
+
+ /***********************************************************
+ * Initialize program objects, classes etc
+ ***********************************************************/
+
+ if (!init()) {
+ return 1;
+ }
+
+ /***********************************************************
+ * Rendering loop
+ ***********************************************************/
+
+ while(!glfwWindowShouldClose(win)) {
+ glfwPollEvents();
+ display();
+ }
+
+ vkDeviceWaitIdle(vk_core.dev);
+ return 0;
+}
+
+/* static functions */
+
+static bool
+vk_init()
+{
+ uint32_t i;
+
+ /* create swapchain */
+ if (!vk_create_swapchain(&vk_core, win_w, win_h, false, vk_surf, 0, &vk_chain)) {
+ fprintf(stderr, "No swapchain was created.\n");
+ return false;
+ }
+
+ if (vk_chain.swapchain == VK_NULL_HANDLE) {
+ fprintf(stderr, "Invalid swapchain handle.\n");
+ return false;
+ }
+
+ if (!vk_create_sync_objects()) {
+ fprintf(stderr, "Failed to create sync objects.\n");
+ return false;
+ }
+
+ /* FIXME for the moment one cmd buf.
+ * But most probably I need to change this later. */
+ VkCommandBuffer cmd_buf;
+ if (!(cmd_buf = vk_create_cmd_buffer(&vk_core))) {
+ fprintf(stderr, "Failed to create command buffer: %d.\n", 0);
+ return false;
+ }
+
+ vk_cmd_buffers = (VkCommandBuffer*)malloc(vk_chain.num_images * sizeof *vk_cmd_buffers);
+ memset(vk_cmd_buffers, 0, vk_chain.num_images * sizeof *vk_cmd_buffers);
+ vk_cmd_buffers[0] = cmd_buf;
+
+ /* FIXME: this part is going to be part of each object's
+ * renderpass and pipeline */
+
+ /* create depth attachment (for the moment we are going to use this
+ * for all images */
+ if (!vk_fill_image_props(&vk_core,
+ win_w, win_h, 1,
+ 1, 1, 1,
+ VK_FORMAT_D32_SFLOAT_S8_UINT,
+ VK_IMAGE_TILING_OPTIMAL,
+ VK_IMAGE_LAYOUT_UNDEFINED,
+ VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL,
+ false, true, false,
+ &vk_depth_att.props)) {
+ fprintf(stderr, "Unsupported depth image properties\n");
+ return false;
+ }
+ if (!vk_create_image(&vk_core, &vk_depth_att.props, &vk_depth_att.obj)) {
+ fprintf(stderr, "Failed to create depth attachment.\n");
+ return false;
+ }
+ if(!vk_create_image_view(&vk_core, vk_depth_att.obj.img, VK_IMAGE_VIEW_TYPE_2D,
+ vk_depth_att.props.format, false,
+ &vk_depth_att.obj.img_view)) {
+ fprintf(stderr, "Failed to create image view for depth attachment.\n");
+ return false;
+ }
+
+ /* load shaders */
+ int vsz, fsz;
+ char *vsdr = sdr_load("data/main.vert.spv", &vsz);
+ char *fsdr = sdr_load("data/main.frag.spv", &fsz);
+
+ /* create renderer */
+ if (!vk_create_renderer(&vk_core,
+ vsdr, vsz, fsdr, fsz,
+ win_w, win_h, 1,
+ true, false,
+ 1, &vk_chain.img_props, &vk_depth_att.props,
+ 0, &vk_rnd)) {
+ goto fail;
+ }
+
+ vk_framebuffers = (VkFramebuffer*)malloc(vk_chain.num_images * sizeof vk_framebuffers[0]);
+ memset(vk_framebuffers, VK_NULL_HANDLE, vk_chain.num_images * sizeof vk_framebuffers[0]);
+
+ for (i = 0; i < vk_chain.num_images; i++) {
+ if (!vk_create_framebuffer(&vk_core,
+ win_w, win_h, 1,
+ &vk_chain.views[i],
+ &vk_depth_att.obj.img_view,
+ vk_rnd.renderpass,
+ &vk_framebuffers[i]))
+ goto fail;
+ }
+
+ /* record cmd buffer FIXME:
+ * should move this and make it part of each renderer
+ * also add all other stuff needed like uniforms
+ * descriptor sets spec constants push constants etc
+ * renderer
+ */
+
+ free(vsdr);
+ free(fsdr);
+
+ return true;
+
+fail:
+ free(vsdr);
+ free(fsdr);
+
+ return false;
+}
+
+static bool
+init()
+{
+ return true;
+}
+
+static void
+cleanup()
+{
+ vk_cleanup();
+}
+
+/* FIXME */
+static int count;
+static void
+display()
+{
+ vkWaitForFences(vk_core.dev, 1, &vk_fences[vk_frame_idx], VK_TRUE, UINT64_MAX);
+ vkResetFences(vk_core.dev, 1, &vk_fences[vk_frame_idx]);
+
+ VkResult err;
+ do {
+ err = vkAcquireNextImageKHR(vk_core.dev, vk_chain.swapchain,
+ UINT64_MAX,
+ vk_semas[vk_frame_idx].frame_ready,
+ 0, &vk_current_image);
+ switch(err) {
+ case VK_ERROR_OUT_OF_DATE_KHR:
+ fprintf(stderr, "acquire next image error: VK_ERROR_OUT_OF_DATE_KHR.\n");
+ abort();
+ break;
+ case VK_SUBOPTIMAL_KHR:
+ fprintf(stderr, "AcquireNextImageKHR returned VK_SUBOPTIMAL_KHR, ignored.\n");
+ abort();
+ break;
+ case VK_ERROR_SURFACE_LOST_KHR:
+ vkDestroySurfaceKHR(vk_core.inst, vk_surf, 0);
+ if (glfwCreateWindowSurface(vk_core.inst, win, 0, &vk_surf) !=
+ VK_SUCCESS) {
+ fprintf(stderr, "Failed to recreate GLFW/XCB surface.\n");
+ }
+ abort();
+ break;
+ default:
+ assert(!err);
+ break;
+ }
+ } while (err != VK_SUCCESS);
+
+ /* FIXME update buffer data */
+ if (!vk_record_cmd_buffer(&vk_core,
+ vk_cmd_buffers[0],
+ &vk_rnd,
+ 4, vk_fb_color,
+ vk_framebuffers[vk_current_image],
+ 2, 0,
+ 0, 0, win_w, win_h)) {
+ fprintf(stderr, "Failed to record command buffer.\n");
+ abort();
+ }
+
+ /* each object should have a command buffer renderpass etc? */
+ VkSubmitInfo sinfo;
+ VkPipelineStageFlags wait_stages = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
+
+ memset(&sinfo, 0, sizeof sinfo);
+ sinfo.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
+ sinfo.waitSemaphoreCount = 1;
+ sinfo.pWaitSemaphores = &vk_semas[vk_frame_idx].frame_ready;
+ sinfo.pWaitDstStageMask = &wait_stages;
+ sinfo.commandBufferCount = 1;
+ sinfo.pCommandBuffers = &vk_cmd_buffers[0];
+ sinfo.signalSemaphoreCount = 1;
+ sinfo.pSignalSemaphores = &vk_semas[vk_frame_idx].frame_done;
+
+ if (vkQueueSubmit(vk_core.queue, 1, &sinfo, vk_fences[vk_frame_idx]) != 0) {
+ fprintf(stderr, "Failed to submit draw commands.\n");
+ abort();
+ }
+
+ if (vkQueueWaitIdle(vk_core.queue) != VK_SUCCESS) {
+ fprintf(stderr, "Failed to wait idle.\n");
+ abort();
+ }
+
+ if (!vk_queue_present(&vk_chain, vk_core.queue, vk_current_image,
+ vk_semas[vk_frame_idx].frame_done)) {
+ abort();
+ }
+
+ vk_frame_idx = (vk_frame_idx + 1) % (vk_chain.num_images - 1);
+
+ printf("display %d\n", count++);
+ printf("current image %u\n", vk_current_image);
+ printf("frame idx %d\n", vk_frame_idx);
+}
+
+static void
+vk_cleanup()
+{
+ uint32_t i;
+ int num_images = vk_chain.num_images - 1;
+
+ vk_destroy_image(&vk_core, &vk_depth_att.obj);
+ vk_destroy_renderer(&vk_core, &vk_rnd);
+
+ for (i = 0; i < vk_chain.num_images; i++) {
+ vkDestroyFramebuffer(vk_core.dev, vk_framebuffers[i], 0);
+ }
+
+ glfwDestroyWindow(win);
+
+ if (vk_chain.swapchain) {
+ vk_destroy_swapchain(&vk_core, &vk_chain);
+ vkDestroySurfaceKHR(vk_core.inst, vk_surf, 0);
+ }
+
+ if (vk_enable_layers)
+ return;
+
+ vk_destroy_cmd_buffers(&vk_core, vk_chain.num_images, vk_cmd_buffers);
+
+ vk_destroy_fences(&vk_core, vk_chain.num_images, vk_fences);
+
+ for (int i = 0; i < num_images; i++)
+ vk_destroy_semaphores(&vk_core, &vk_semas[i]);
+ free(vk_semas);
+
+ glfwTerminate();
+
+ vk_cleanup_ctx(&vk_core);
+}
+
+static bool
+vk_create_sync_objects()
+{
+ VkFenceCreateInfo finfo;
+ memset(&finfo, 0, sizeof finfo);
+ finfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
+ finfo.flags = VK_FENCE_CREATE_SIGNALED_BIT;
+
+ VkSemaphoreCreateInfo sinfo;
+ memset(&sinfo, 0, sizeof sinfo);
+ sinfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
+
+ vk_fences = (VkFence*)malloc((vk_chain.num_images - 1) * sizeof *vk_fences);
+ memset(vk_fences, VK_NULL_HANDLE, (vk_chain.num_images - 1) * sizeof *vk_fences);
+
+ vk_semas = (struct vk_semaphores *)malloc(sizeof(struct vk_semaphores) * (vk_chain.num_images - 1));
+ memset(vk_semas, VK_NULL_HANDLE, (vk_chain.num_images - 1) * sizeof *vk_fences);
+
+ for (uint32_t i = 0; i < (vk_chain.num_images - 1); i++) {
+ if (vkCreateFence(vk_core.dev, &finfo, 0, &vk_fences[i]) != VK_SUCCESS) {
+ fprintf(stderr, "Failed to create fence: %d\n", i);
+ return false;
+ }
+
+ if (vkCreateSemaphore(vk_core.dev, &sinfo, 0, &vk_semas[i].frame_ready) != VK_SUCCESS) {
+ fprintf(stderr, "Failed to create frame_ready semaphore: %d\n", i);
+ return false;
+ }
+
+ if (vkCreateSemaphore(vk_core.dev, &sinfo, 0, &vk_semas[i].frame_done) != VK_SUCCESS) {
+ fprintf(stderr, "Failed to create frame_done semaphore: %d\n", i);
+ return false;
+ }
+ }
+
+ return true;
+}
+
+/* glfw callbacks */
+
+static void
+clb_reshape(GLFWwindow *win,
+ int width,
+ int height)
+{
+ aspect = (float)width / (float)height;
+#if 0
+ mproj = calc_projection_matrix(45, aspect, 0.5, 1000.0f);
+#endif
+
+ /* FIXME near and far clipping planes */
+ vk_set_viewport(&vk_core, vk_cmd_buffers[0],
+ 0, 0, win_w, win_h, 0.0f, 1.0f);
+ win_w = width;
+ win_h = height;
+}
+
+static void
+clb_key(GLFWwindow *win, int key, int scancode,
+ int action, int mods)
+{
+ if (action == GLFW_REPEAT) return;
+
+ if (action == GLFW_PRESS) {
+ switch(key) {
+ case GLFW_KEY_ESCAPE:
+ glfwSetWindowShouldClose(win, GLFW_TRUE);
+ exit(0);
+ case ' ':
+ move_camera = !move_camera;
+ break;
+ default:
+ break;
+ }
+ }
+}
+
+static double prev_x, prev_y;
+static bool button[8];
+
+static void
+clb_motion(GLFWwindow *win,
+ double x,
+ double y)
+{
+ double dx = x - prev_x;
+ double dy = y - prev_y;
+
+ prev_x = x;
+ prev_y = y;
+
+ if(button[0]) {
+ cam_theta += dx * 0.5;
+ cam_phi += dy * 0.5;
+
+ if(cam_phi < 0)
+ cam_phi = 0;
+ if(cam_phi > 90)
+ cam_phi = 90;
+ }
+
+ if(button[1]) {
+ cam_dist += dy * 0.1;
+ if(cam_dist < 0.0) {
+ cam_dist = 0.0;
+ }
+ }
+}
+
+static void
+clb_mouse(GLFWwindow *win,
+ int button,
+ int action,
+ int mods)
+{
+}
projects / vkrt / blobdiff