render: create the rendering subsystem

Create the rendering subsystem and populate it with a basic Vulkan
renderer. This renderer is not yet functional and should not be used
yet.

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

1 files changed, 34 insertions, 0 deletions

diff --git a/render/vulkan/framebuffer.c b/render/vulkan/framebuffer.c
new file mode 100644
index 0000000..36d90c0
--- /dev/null
+++ b/render/vulkan/framebuffer.c
@@ -0,0 +1,34 @@
+#include "framebuffer.h"
+#include "vkassert.h"
+#include <rune/core/alloc.h>
+#include <rune/core/logging.h>
+
+struct vkframebuffer* create_vkframebuffer(struct vkdev *dev, struct vkrendpass *rendpass, uint32_t width, uint32_t height, uint32_t at_count, VkImageView *at) {
+        struct vkframebuffer *ret = rune_alloc(sizeof(struct vkframebuffer));
+        ret->at_count = at_count;
+        ret->attachments = rune_alloc(sizeof(VkImageView) * at_count);
+        for (uint32_t i = 0; i < at_count; i++)
+                ret->attachments[i] = at[i];
+        ret->rendpass = rendpass;
+        
+        VkFramebufferCreateInfo fbinfo;
+        fbinfo.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
+        fbinfo.pNext = NULL;
+        fbinfo.flags = 0;
+        fbinfo.renderPass = rendpass->handle;
+        fbinfo.attachmentCount = ret->at_count;
+        fbinfo.pAttachments = ret->attachments;
+        fbinfo.width = width;
+        fbinfo.height = height;
+        fbinfo.layers = 1;
+        vkassert(vkCreateFramebuffer(dev->ldev, &fbinfo, NULL, &ret->handle), "Failed to create Vulkan framebuffer");
+
+        return ret;
+}
+
+void destroy_vkframebuffer(struct vkframebuffer *framebuffer, struct vkdev *dev) {
+        vkDestroyFramebuffer(dev->ldev, framebuffer->handle, NULL);
+        if (framebuffer->attachments)
+                rune_free(framebuffer->attachments);
+        rune_free(framebuffer);
+}