X-Git-Url: https://eleni.mutantstargoat.com/git/?p=vkrt;a=blobdiff_plain;f=src%2Fmain.cc;fp=src%2Fmain.cc;h=af4277c20421d870a7884a345fc76f55f0a78a69;hp=0000000000000000000000000000000000000000;hb=6c8e0d1dcf1e08982b54a1b2d2e914e409e09386;hpb=8d3a8ecaf4f20ed8c460ab75724c7bf8363e905a diff --git a/src/main.cc b/src/main.cc new file mode 100644 index 0000000..af4277c --- /dev/null +++ b/src/main.cc @@ -0,0 +1,301 @@ +#include + +#define GLFW_INCLUDE_VULKAN +#include +#include +#include + +#include "vk.h" +#include "util.h" + + +/* 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 functions */ + +static bool +init(void); + +static void +cleanup(void); + +static void +display(void); + +/* static variables */ + +static GLFWwindow *win; +static bool redraw_pending; + +static bool vk_enable_layers = true; + +static int win_w = 800; +static int win_h = 600; + +static struct vk_ctx vk_core; +static VkSurfaceKHR vk_surf; +static struct vk_renderer vk_rnd; +static struct vk_swapchain vk_chain; +static struct vk_semaphores vk_sema; +static struct vk_attachment vk_depth_att; +static float vk_fb_color[4] = { 0.0, 0.0, 0.5, 1.0 }; + +/* make array later if many cmd buffers */ +static VkCommandBuffer vk_cmd_buf; + +/* empty for as long as we hardcode the vertices in the vertex shader */ +static struct vk_vertex_info vk_vert_info; + +int main(int argc, char** argv) +{ + atexit(cleanup); + + if (!init()) { + return 1; + } + + /* reshape window once just in case */ + + glfwGetWindowSize(win, &win_w, &win_h); + clb_reshape(win, win_w, win_h); + + /* event loop */ + redraw_pending = true; + + while(!glfwWindowShouldClose(win)) { + glfwWaitEvents(); + if (redraw_pending) { + redraw_pending = false; + display(); + } + } + + return 0; +} + +/* static functions */ + +static bool +init(void) +{ + char *vsdr = 0; + char *fsdr = 0; + int vsz, fsz; + + /* initialize GLFW */ + + if (!glfwInit()) { + fprintf(stderr, "Failed to initialize GLFW.\n"); + return false; + } + + if (glfwVulkanSupported() != GLFW_TRUE) { + fprintf(stderr, "Vulkan is not supported on this device.\n"); + return false; + } + + /* create window */ + + glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API); + win = glfwCreateWindow(win_w, win_h, "helloworld rt", 0, 0); + + if (!win) { + fprintf(stderr, "Failed to create GLFW window\n"); + return false; + } + + glfwSetKeyCallback(win, clb_key); + + /* initialize Vulkan context (instance) */ + + if (!vk_init_ctx_for_rendering(&vk_core, true, vk_enable_layers)) { + fprintf(stderr, "Failed to initialize Vulkan context.\n"); + return false; + } + + /* create (Xcb) 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 false; + } + + /* create semaphores */ + if (!vk_create_semaphores(&vk_core, false, &vk_sema)) { + fprintf(stderr, "No semaphores were created.\n"); + goto fail; + } + + /* 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"); + goto fail; + } + + if (vk_chain.swapchain == VK_NULL_HANDLE) { + fprintf(stderr, "Invalid swapchain handle.\n"); + goto fail; + } + + /* create shaders */ + vsdr = sdr_load("data/main.vert.spv", &vsz); + fsdr = sdr_load("data/main.frag.spv", &fsz); + + /* 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"); + goto fail; + } + + /* create renderer */ + if (!vk_create_renderer(&vk_core, + vsdr, vsz, fsdr, fsz, + win_w, win_h, 1, + false, false, + vk_chain.num_atts, vk_chain.atts, &vk_depth_att, + &vk_vert_info, &vk_rnd)) { + goto fail; + } + + /* create cmd buffer */ + if ((vk_cmd_buf = vk_create_cmd_buffer(&vk_core)) == VK_NULL_HANDLE) { + fprintf(stderr, "Failed to create command buffer.\n"); + goto fail; + } + + /* record cmd buffer */ + if (!vk_record_cmd_buffer(&vk_core, vk_cmd_buf, + &vk_rnd, 0, + 4, vk_fb_color, + vk_chain.num_atts + 1, 0, + 0, 0, win_w, win_h)) { + fprintf(stderr, "Failed to record command buffer.\n"); + goto fail; + } + + free(vsdr); + free(fsdr); + + /* set GLFW callbacks */ + + /* glfwSetWindowSizeCallback(win, clb_reshape); */ + + /* + glfwSetCursorPosCallback(win, clb_motion); + glfwSetMouseButtonCallback(win, clb_mouse); + */ + + return true; + +fail: + free(vsdr); + free(fsdr); + + return false; +} + +static void +display(void) +{ + uint32_t img_idx; + VkSubmitInfo sinfo; + VkPipelineStageFlags wait_stages = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT; + VkPresentInfoKHR pinfo; + + vkAcquireNextImageKHR(vk_core.dev, vk_chain.swapchain, + UINT64_MAX, vk_sema.frame_ready, 0, &img_idx); + + memset(&sinfo, 0, sizeof sinfo); + sinfo.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO; + sinfo.waitSemaphoreCount = 1; + sinfo.pWaitSemaphores = &vk_sema.frame_ready; + sinfo.pWaitDstStageMask = &wait_stages; + sinfo.commandBufferCount = 1; + sinfo.pCommandBuffers = &vk_cmd_buf; + sinfo.signalSemaphoreCount = 1; + sinfo.pSignalSemaphores = &vk_sema.frame_done; + + if (vkQueueSubmit(vk_core.queue, 1, &sinfo, 0) != 0) { + fprintf(stderr, "Failed to submit draw commands.\n"); + abort(); + } + + memset(&pinfo, 0, sizeof pinfo); + pinfo.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR; + pinfo.waitSemaphoreCount = 1; + pinfo.pWaitSemaphores = &vk_sema.frame_done; + pinfo.swapchainCount = 1; + pinfo.pSwapchains = &vk_chain.swapchain; + pinfo.pImageIndices = &img_idx; + + vkQueuePresentKHR(vk_core.queue, &pinfo); +} + +static void +cleanup(void) +{ + vkQueueWaitIdle(vk_core.queue); + + if (vk_cmd_buf != VK_NULL_HANDLE) { + vkResetCommandBuffer(vk_cmd_buf, VK_COMMAND_BUFFER_RESET_RELEASE_RESOURCES_BIT); + } + + vk_destroy_image(&vk_core, &vk_depth_att.obj); + vk_destroy_semaphores(&vk_core, &vk_sema); + vk_destroy_renderer(&vk_core, &vk_rnd); + + if (vk_chain.swapchain) { + vk_destroy_swapchain(&vk_core, &vk_chain); + vkDestroySurfaceKHR(vk_core.inst, vk_surf, 0); + } + + glfwDestroyWindow(win); + + if (!vk_enable_layers) + vkFreeCommandBuffers(vk_core.dev, vk_core.cmd_pool, 1, &vk_cmd_buf); + + vk_cleanup_ctx(&vk_core, vk_enable_layers); + + glfwTerminate(); +} + +/* glfw callbacks */ + +static void +clb_key(GLFWwindow *win, int key, int scancode, + int action, int mods) +{ + if (action == GLFW_PRESS) { + switch(key) { + case GLFW_KEY_ESCAPE: + glfwSetWindowShouldClose(win, GLFW_TRUE); + return; + } + } +} + +static void +clb_reshape(GLFWwindow *win, int width, int height) +{ +}