From 7ebb109c445cde3c5ce47b49674c07bf5a47ee6f Mon Sep 17 00:00:00 2001
From: Greg Wells <gregory@Gregs-MacBook-Pro.local>
Date: Fri, 30 May 2025 13:28:10 -0400
Subject: [PATCH] present stuff

---
 include/gryphn/gryphn.h                       |  1 +
 .../vulkan/src/present/vulkan_present.c       | 28 +++++++++++++++++++
 src/core/gryphn_platform_functions.h          |  2 ++
 src/core/instance/init/gryphn_init.c          |  1 +
 src/core/present/gryphn_present.c             |  6 ++++
 src/core/present/gryphn_present.h             | 14 ++++++++++
 6 files changed, 52 insertions(+)
 create mode 100644 rendering_api/vulkan/src/present/vulkan_present.c
 create mode 100644 src/core/present/gryphn_present.c
 create mode 100644 src/core/present/gryphn_present.h

diff --git a/include/gryphn/gryphn.h b/include/gryphn/gryphn.h
index ccd94a0..802a566 100644
--- a/include/gryphn/gryphn.h
+++ b/include/gryphn/gryphn.h
@@ -20,3 +20,4 @@
 #include <core/sync/semaphore/gryphn_semaphore.h>
 #include <core/sync/fence/gryphn_fence.h>
 #include <core/submit/gryphn_submit.h>
+#include <core/present/gryphn_present.h>
diff --git a/rendering_api/vulkan/src/present/vulkan_present.c b/rendering_api/vulkan/src/present/vulkan_present.c
new file mode 100644
index 0000000..6b6b811
--- /dev/null
+++ b/rendering_api/vulkan/src/present/vulkan_present.c
@@ -0,0 +1,28 @@
+#include "core/present/gryphn_present.h"
+#include "sync/semaphore/vulkan_semaphore.h"
+#include "presentation_queue/vulkan_presentation_queue.h"
+#include "output_device/vulkan_output_devices.h"
+
+gnReturnCode gnPresentFn(struct gnOutputDevice_t* device, struct gnPresentInfo_t info) {
+    VkSemaphore* waitSemaphores = malloc(sizeof(VkSemaphore) * info.waitCount);
+    for (int i = 0; i < info.waitCount; i++) waitSemaphores[i] = info.waitSemaphores[i].semaphore->semaphore;
+
+    VkSwapchainKHR* swapchains = malloc(sizeof(VkSwapchainKHR) * info.presentationQueueCount);
+    for (int i = 0; i < info.presentationQueueCount; i++) swapchains[i] = info.presentationQueues[i].presentationQueue->swapChain;
+
+    VkPresentInfoKHR presentInfo = {
+        .sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR,
+        .waitSemaphoreCount = info.waitCount,
+        .pWaitSemaphores = waitSemaphores,
+        .swapchainCount = info.presentationQueueCount,
+        .pSwapchains = swapchains,
+        .pImageIndices = info.imageIndices
+    };
+
+    VkQueue queue;
+    vkGetDeviceQueue(device->outputDevice->device, info.queueIndex, 0, &queue);
+
+    vkQueuePresentKHR(queue, &presentInfo);
+
+    return GN_SUCCESS;
+}
diff --git a/src/core/gryphn_platform_functions.h b/src/core/gryphn_platform_functions.h
index 2cb0385..cb91dbb 100644
--- a/src/core/gryphn_platform_functions.h
+++ b/src/core/gryphn_platform_functions.h
@@ -17,6 +17,7 @@
 #include "sync/fence/gryphn_fence.h"
 #include "sync/semaphore/gryphn_semaphore.h"
 #include "core/submit/gryphn_submit.h"
+#include "core/present/gryphn_present.h"
 
 typedef struct gnFunctions_t {
     gnReturnCode (*_gnCreateInstance)(gnInstance* instance, struct gnInstanceInfo_t info);
@@ -87,6 +88,7 @@ typedef struct gnDeviceFunctions_t {
     void (*_gnDestroyFence)(struct gnFence_t* fence);
 
     gnReturnCode (*_gnSubmit)(struct gnOutputDevice_t* device, struct gnSubmitInfo_t submit);
+    gnReturnCode (*_gnPresent)(struct gnOutputDevice_t* device, struct gnPresentInfo_t info);
 } gnDeviceFunctions;
 
 typedef struct gnCommandFunctions_t {
diff --git a/src/core/instance/init/gryphn_init.c b/src/core/instance/init/gryphn_init.c
index b41d08b..719d679 100644
--- a/src/core/instance/init/gryphn_init.c
+++ b/src/core/instance/init/gryphn_init.c
@@ -90,6 +90,7 @@ void gnLoadDeviceFunctions(struct gnDynamicLibrary_t* lib, struct gnDeviceFuncti
     gnLoadDLLFunction(lib, functions->_gnResetFence, "gnResetFenceFn");
     gnLoadDLLFunction(lib, functions->_gnDestroyFence, "gnDestroyFenceFn");
     gnLoadDLLFunction(lib, functions->_gnSubmit, "gnSubmitFn");
+    gnLoadDLLFunction(lib, functions->_gnPresent, "gnPresentFn");
 }
 
 void gnLoadCommandFunctions(struct gnDynamicLibrary_t* lib, struct gnCommandFunctions_t* functions) {
diff --git a/src/core/present/gryphn_present.c b/src/core/present/gryphn_present.c
new file mode 100644
index 0000000..100cad1
--- /dev/null
+++ b/src/core/present/gryphn_present.c
@@ -0,0 +1,6 @@
+#include "core/gryphn_platform_functions.h"
+#include "gryphn_present.h"
+
+gnReturnCode gnPresent(struct gnOutputDevice_t* device, struct gnPresentInfo_t info) {
+    return device->deviceFunctions->_gnPresent(device, info);
+}
diff --git a/src/core/present/gryphn_present.h b/src/core/present/gryphn_present.h
new file mode 100644
index 0000000..bc9dd97
--- /dev/null
+++ b/src/core/present/gryphn_present.h
@@ -0,0 +1,14 @@
+#pragma once
+#include "core/sync/semaphore/gryphn_semaphore.h"
+#include "core/presentation_queue/gryphn_presentation_queue.h"
+
+typedef struct gnPresentInfo_t {
+    uint32_t waitCount;
+    struct gnSemaphore_t* waitSemaphores;
+    uint32_t presentationQueueCount;
+    struct gnPresentationQueue_t* presentationQueues;
+    uint32_t* imageIndices;
+    uint32_t queueIndex;
+} gnPresentInfo;
+
+gnReturnCode gnPresent(struct gnOutputDevice_t* device, struct gnPresentInfo_t info);