root: restructuring

Restructure the root of the project such that the engine is siloed from
the rest of the toolchain. Add two new subdirectories that contain an
editor and an offline profiling data analyzer.

Signed-off-by: Danny Holman <dholman@gymli.org>

1 files changed, 249 insertions, 0 deletions

diff --git a/engine/render/vulkan/renderpass.c b/engine/render/vulkan/renderpass.c
new file mode 100644
index 0000000..e1e8743
--- /dev/null
+++ b/engine/render/vulkan/renderpass.c
@@ -0,0 +1,249 @@
+/*
+ * Rune Game Engine
+ * Copyright 2024 Danny Holman <dholman@gymli.org>
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty.  In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would be
+ *    appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
+#include "renderpass.h"
+#include "vkassert.h"
+#include <rune/core/alloc.h>
+
+vkcmdbuffer_t* create_vkcmdbuffer(vkdev_t *dev, int primary) {
+        vkcmdbuffer_t *ret = rune_calloc(0, sizeof(vkcmdbuffer_t));
+
+        VkCommandBufferAllocateInfo ainfo;
+        ainfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
+        ainfo.pNext = NULL;
+        ainfo.commandPool = dev->gfx_cmd_pool;
+        if (primary == 1)
+                ainfo.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
+        else
+                ainfo.level = VK_COMMAND_BUFFER_LEVEL_SECONDARY;
+        ainfo.commandBufferCount = 1;
+        vkassert(vkAllocateCommandBuffers(dev->ldev, &ainfo, &ret->handle));
+
+        ret->state = CMDBUF_INITIAL;
+        return ret;
+}
+
+void destroy_vkcmdbuffer(vkcmdbuffer_t *cmdbuffer, vkdev_t *dev) {
+        vkFreeCommandBuffers(dev->ldev, dev->gfx_cmd_pool, 1, &cmdbuffer->handle);
+        rune_free(cmdbuffer);
+}
+
+void cmdbuf_begin(vkcmdbuffer_t *cmdbuffer, int single, int rpass_cont, int sim_use) {
+        if (cmdbuffer->state != CMDBUF_INITIAL) {
+                log_output(LOG_FATAL, "Attempted to record to a command buffer not in initial state");
+                rune_abort();
+        }
+
+        VkCommandBufferBeginInfo binfo;
+        binfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
+        binfo.flags = 0;
+        binfo.pNext = NULL;
+        if (single)
+                binfo.flags |= VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT;
+        if (rpass_cont)
+                binfo.flags |= VK_COMMAND_BUFFER_USAGE_RENDER_PASS_CONTINUE_BIT;
+        if (sim_use)
+                binfo.flags |= VK_COMMAND_BUFFER_USAGE_SIMULTANEOUS_USE_BIT;
+        vkassert(vkBeginCommandBuffer(cmdbuffer->handle, &binfo));
+        cmdbuffer->state = CMDBUF_RECORDING;
+}
+
+void cmdbuf_end(vkcmdbuffer_t *cmdbuffer) {
+        if (cmdbuffer->state != CMDBUF_RECORDING) {
+                log_output(LOG_FATAL, "Attempted to end command buffer not in recording state");
+                rune_abort();
+        }
+
+        vkassert(vkEndCommandBuffer(cmdbuffer->handle));
+        cmdbuffer->state = CMDBUF_READY;
+}
+
+void cmdbuf_submit(vkcmdbuffer_t *cmdbuffer, VkSemaphore *signal, VkSemaphore *wait, VkQueue queue_handle, VkFence fence_handle) {
+        if (cmdbuffer->state != CMDBUF_READY) {
+                log_output(LOG_FATAL, "Attempted to submit command buffer not in ready state");
+                return;
+        }
+
+        VkSubmitInfo sinfo;
+        sinfo.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
+        sinfo.pNext = NULL;
+        sinfo.commandBufferCount = 1;
+        sinfo.pCommandBuffers = &cmdbuffer->handle;
+        sinfo.signalSemaphoreCount = 1;
+        sinfo.pSignalSemaphores = signal;
+        sinfo.waitSemaphoreCount = 1;
+        sinfo.pWaitSemaphores = wait;
+        VkPipelineStageFlags flags[1] = {VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT};
+        sinfo.pWaitDstStageMask = flags;
+        vkassert(vkQueueSubmit(queue_handle, 1, &sinfo, fence_handle));
+        cmdbuffer->state = CMDBUF_SUBMITTED;
+}
+
+void cmdbuf_reset(vkcmdbuffer_t *cmdbuffer) {
+        cmdbuffer->state = CMDBUF_INITIAL;
+}
+
+vkcmdbuffer_t* cmdbuf_begin_single_use(vkdev_t *dev) {
+        vkcmdbuffer_t *ret = create_vkcmdbuffer(dev, 1);
+        cmdbuf_begin(ret, 1, 0, 0);
+        return ret;
+}
+
+void cmdbuf_end_single_use(vkcmdbuffer_t *cmdbuffer, vkdev_t *dev, VkQueue queue) {
+        cmdbuf_end(cmdbuffer);
+        VkSubmitInfo sinfo;
+        sinfo.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
+        sinfo.pNext = NULL;
+        sinfo.waitSemaphoreCount = 0;
+        sinfo.pWaitSemaphores = NULL;
+        sinfo.pWaitDstStageMask = NULL;
+        sinfo.commandBufferCount = 1;
+        sinfo.pCommandBuffers = &cmdbuffer->handle;
+        sinfo.signalSemaphoreCount = 0;
+        sinfo.pSignalSemaphores = NULL;
+        vkassert(vkQueueSubmit(queue, 1, &sinfo, 0));
+
+        vkassert(vkQueueWaitIdle(queue));
+        destroy_vkcmdbuffer(cmdbuffer, dev);
+}
+
+vkrendpass_t* create_vkrendpass(vkdev_t *dev, vkswapchain_t *swapchain, vec4 area, vec4 color, float depth, uint32_t stencil) {
+        VkAttachmentDescription atdesc[2];
+        atdesc[0].flags = 0;
+        atdesc[0].format = swapchain->format_khr.format;
+        atdesc[0].samples = VK_SAMPLE_COUNT_1_BIT;
+        atdesc[0].loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
+        atdesc[0].storeOp = VK_ATTACHMENT_STORE_OP_STORE;
+        atdesc[0].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
+        atdesc[0].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
+        atdesc[0].initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
+        atdesc[0].finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
+
+        atdesc[1].flags = 0;
+        atdesc[1].format = dev->depth_format;
+        atdesc[1].samples = VK_SAMPLE_COUNT_1_BIT;
+        atdesc[1].loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
+        atdesc[1].storeOp = VK_ATTACHMENT_STORE_OP_STORE;
+        atdesc[1].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
+        atdesc[1].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
+        atdesc[1].initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
+        atdesc[1].finalLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
+
+        VkAttachmentReference cref;
+        cref.attachment = 0;
+        cref.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
+
+        VkAttachmentReference dref;
+        dref.attachment = 1;
+        dref.layout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
+
+        VkSubpassDescription subpass;
+        subpass.flags = 0;
+        subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
+        subpass.colorAttachmentCount = 1;
+        subpass.pColorAttachments = &cref;
+        subpass.pDepthStencilAttachment = &dref;
+        subpass.preserveAttachmentCount = 0;
+        subpass.pPreserveAttachments = NULL;
+        subpass.inputAttachmentCount = 0;
+        subpass.pInputAttachments = NULL;
+
+        VkSubpassDependency dep;
+        dep.srcSubpass = VK_SUBPASS_EXTERNAL;
+        dep.dstSubpass = 0;
+        dep.srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
+        dep.dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
+        dep.srcAccessMask = 0;
+        dep.dstAccessMask = 0;
+        dep.dependencyFlags = 0;
+
+        vkrendpass_t *ret = rune_alloc(sizeof(vkrendpass_t));
+        ret->color[0] = color[0];
+        ret->color[1] = color[1];
+        ret->color[2] = color[2];
+        ret->color[3] = color[3];
+        ret->area[0] = area[0];
+        ret->area[1] = area[1];
+        ret->area[2] = area[2];
+        ret->area[3] = area[3];
+        ret->depth = depth;
+        ret->stencil = stencil;
+        VkRenderPassCreateInfo rcinfo;
+        rcinfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
+        rcinfo.pNext = NULL;
+        rcinfo.flags = 0;
+        rcinfo.attachmentCount = 2;
+        rcinfo.pAttachments = atdesc;
+        rcinfo.subpassCount = 1;
+        rcinfo.pSubpasses = &subpass;
+        rcinfo.dependencyCount = 1;
+        rcinfo.pDependencies = &dep;
+        vkassert(vkCreateRenderPass(dev->ldev, &rcinfo, NULL, &ret->handle));
+
+        log_output(LOG_DEBUG, "Initialized renderpass");
+        return ret;
+}
+
+void destroy_vkrendpass(vkrendpass_t *rendpass, vkdev_t *dev) {
+        if (rendpass->handle)
+                vkDestroyRenderPass(dev->ldev, rendpass->handle, NULL);
+        rune_free(rendpass);
+}
+
+void renderpass_begin(vkcmdbuffer_t *buf, vkrendpass_t *rendpass, VkFramebuffer framebuf) {
+        if (buf->state != CMDBUF_RECORDING) {
+                log_output(LOG_FATAL, "Attempted to place command buffer not in recording state in a render pass");
+                rune_abort();
+        }
+
+        VkClearValue cvals[2];
+        cvals[0].color.float32[0] = rendpass->color[0];
+        cvals[0].color.float32[1] = rendpass->color[1];
+        cvals[0].color.float32[2] = rendpass->color[2];
+        cvals[0].color.float32[3] = rendpass->color[3];
+        cvals[1].depthStencil.depth = rendpass->depth;
+        cvals[1].depthStencil.stencil = rendpass->stencil;
+
+        VkRenderPassBeginInfo binfo;
+        binfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
+        binfo.pNext = NULL;
+        binfo.renderPass = rendpass->handle;
+        binfo.framebuffer = framebuf;
+        binfo.renderArea.offset.x = rendpass->area[0];
+        binfo.renderArea.offset.y = rendpass->area[1];
+        binfo.renderArea.extent.width = rendpass->area[2];
+        binfo.renderArea.extent.height = rendpass->area[3];
+        binfo.clearValueCount = 2;
+        binfo.pClearValues = cvals;
+
+        vkCmdBeginRenderPass(buf->handle, &binfo, VK_SUBPASS_CONTENTS_INLINE);
+        buf->state = CMDBUF_IN_RENDERPASS;
+}
+
+void renderpass_end(vkcmdbuffer_t *buf, vkrendpass_t *rendpass) {
+        if (buf->state != CMDBUF_IN_RENDERPASS) {
+                log_output(LOG_FATAL, "Attempted to purge command buffer not in render pass");
+                rune_abort();
+        }
+
+        vkCmdEndRenderPass(buf->handle);
+        buf->state = CMDBUF_RECORDING;
+}