basic rendering for both opengl and vulkan

rendering/vk/renderpass.c

@@ -0,0 +1,58 @@
+/* SPDX-License-Identifier:BSD-3-Clause */
+#include "renderpass.h"
+#include "../../core/log.h"
+
+void vk_renderpass_init(struct renderer_context *context)
+{
+	VkAttachmentDescription color_attachment = {
+		.format = context->swapchain.format,
+		.samples = VK_SAMPLE_COUNT_1_BIT,
+		.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR,
+		.storeOp = VK_ATTACHMENT_STORE_OP_STORE,
+		.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE,
+		.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE,
+		.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED,
+		.finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR
+	};
+
+	VkAttachmentReference color_ref = {
+		.attachment = 0,
+		.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL
+	};
+
+	VkSubpassDescription subpass = {
+		.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS,
+		.colorAttachmentCount = 1,
+		.pColorAttachments = &color_ref
+	};
+
+	VkSubpassDependency dependency = {
+		.srcSubpass = VK_SUBPASS_EXTERNAL,
+		.dstSubpass = 0,
+		.srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT,
+		.srcAccessMask = 0,
+		.dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT,
+		.dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT
+	};
+
+	VkRenderPassCreateInfo create_info = {
+		.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO,
+		.attachmentCount = 1,
+		.pAttachments = &color_attachment,
+		.subpassCount = 1,
+		.pSubpasses = &subpass,
+		.dependencyCount = 1,
+		.pDependencies = &dependency
+	};
+
+	if (vkCreateRenderPass(context->device, &create_info, NULL, &context->render_pass) != VK_SUCCESS) {
+		fatal("Can't create render pass.\n");
+	}
+
+	log_info("Render pass created.\n");
+}
+
+void vk_renderpass_deinit(struct renderer_context *context)
+{
+	vkDestroyRenderPass(context->device, context->render_pass, NULL);
+}