From aff94e108500e533db3346abef8373d8bd0d46ba Mon Sep 17 00:00:00 2001
From: Greg Wells <gregory@Gregs-MacBook-Pro.local>
Date: Fri, 6 Jun 2025 12:08:20 -0400
Subject: [PATCH] gryphn buffer API

---
 include/gryphn/gryphn.h              |  1 +
 src/core/buffers/gryphn_buffer.c     | 12 ++++++++++++
 src/core/buffers/gryphn_buffer.h     | 23 +++++++++++++++++++++++
 src/core/gryphn_handles.h            |  6 ++++++
 src/core/gryphn_platform_functions.h |  4 ++++
 5 files changed, 46 insertions(+)
 create mode 100644 src/core/buffers/gryphn_buffer.c
 create mode 100644 src/core/buffers/gryphn_buffer.h

diff --git a/include/gryphn/gryphn.h b/include/gryphn/gryphn.h
index 8a426b4..2e9ed1f 100644
--- a/include/gryphn/gryphn.h
+++ b/include/gryphn/gryphn.h
@@ -21,3 +21,4 @@
 #include <core/submit/gryphn_submit.h>
 #include <core/present/gryphn_present.h>
 #include <core/shader_input/gryphn_shader_layout.h>
+#include <core/buffers/gryphn_buffer.h>
diff --git a/src/core/buffers/gryphn_buffer.c b/src/core/buffers/gryphn_buffer.c
new file mode 100644
index 0000000..b29a8c2
--- /dev/null
+++ b/src/core/buffers/gryphn_buffer.c
@@ -0,0 +1,12 @@
+#include "gryphn_buffer.h"
+#include "core/output_device/gryphn_output_device.h"
+#include "core/gryphn_platform_functions.h"
+
+gnReturnCode gnCreateBuffer(gnBufferHandle* buffer, gnOutputDeviceHandle device, gnBufferInfo info) {
+    *buffer = malloc(sizeof(struct gnBuffer_t));
+    (*buffer)->device = device;
+    return device->deviceFunctions->_gnCreateBuffer(*buffer, device, info);
+}
+void gnDestroyBuffer(gnBufferHandle buffer) {
+    buffer->device->deviceFunctions->_gnDestroyBuffer(buffer);
+}
diff --git a/src/core/buffers/gryphn_buffer.h b/src/core/buffers/gryphn_buffer.h
new file mode 100644
index 0000000..f9ab54a
--- /dev/null
+++ b/src/core/buffers/gryphn_buffer.h
@@ -0,0 +1,23 @@
+#pragma once
+#include "stdlib.h"
+#include "utils/gryphn_error_code.h"
+#include <core/gryphn_handles.h>
+
+typedef enum gnBufferType {
+    GN_VERTEX_BUFFER = 0x00000001
+} gnBufferType;
+
+typedef struct gnBufferInfo {
+    size_t size;
+    gnBufferType type;
+} gnBufferInfo;
+
+#ifdef GN_REVEAL_IMPL
+struct gnBuffer_t {
+    struct gnPlatformBuffer_t* buffer;
+    gnDeviceHandle device;
+};
+#endif
+
+gnReturnCode gnCreateBuffer(gnBufferHandle* buffer, gnOutputDeviceHandle device, gnBufferInfo info);
+void gnDestroyBuffer(gnBufferHandle buffer);
diff --git a/src/core/gryphn_handles.h b/src/core/gryphn_handles.h
index 9794775..78cc4e5 100644
--- a/src/core/gryphn_handles.h
+++ b/src/core/gryphn_handles.h
@@ -4,6 +4,10 @@
 typedef struct type##_t* type##Handle; \
 typedef struct type##_t* type
 
+#define GN_HANDLE_ALIAS(alias, handle) \
+typedef struct handle##_t* alias##Handle; \
+typedef struct handle##_t* alias
+
 GN_HANDLE(gnInstance);
 GN_HANDLE(gnDebugger);
 GN_HANDLE(gnWindowSurface);
@@ -11,6 +15,7 @@ GN_HANDLE(gnPresentationQueue);
 GN_HANDLE(gnTexture);
 GN_HANDLE(gnRenderPassDescriptor);
 GN_HANDLE(gnOutputDevice);
+GN_HANDLE_ALIAS(gnDevice, gnOutputDevice);
 GN_HANDLE(gnShaderModule);
 GN_HANDLE(gnGraphicsPipeline);
 GN_HANDLE(gnCommandPool);
@@ -18,3 +23,4 @@ GN_HANDLE(gnCommandBuffer);
 GN_HANDLE(gnSemaphore);
 GN_HANDLE(gnFence);
 GN_HANDLE(gnFramebuffer);
+GN_HANDLE(gnBuffer);
diff --git a/src/core/gryphn_platform_functions.h b/src/core/gryphn_platform_functions.h
index 7e6890a..659a976 100644
--- a/src/core/gryphn_platform_functions.h
+++ b/src/core/gryphn_platform_functions.h
@@ -18,6 +18,7 @@
 #include "sync/semaphore/gryphn_semaphore.h"
 #include "core/submit/gryphn_submit.h"
 #include "core/present/gryphn_present.h"
+#include "core/buffers/gryphn_buffer.h"
 
 typedef struct gnFunctions_t {
     gnReturnCode (*_gnCreateInstance)(gnInstanceHandle instance, gnInstanceInfo info);
@@ -81,6 +82,9 @@ typedef struct gnDeviceFunctions_t {
     gnReturnCode (*_gnCreateSemaphore)(gnSemaphoreHandle semaphore, gnOutputDeviceHandle device);
     void (*_gnDestroySemaphore)(gnSemaphoreHandle semaphore);
 
+    gnReturnCode (*_gnCreateBuffer)(gnBufferHandle buffer, gnDeviceHandle device, gnBufferInfo info);
+    gnReturnCode(*_gnDestroyBuffer)(gnBufferHandle buffer);
+
     gnReturnCode (*_gnCreateFence)(gnFenceHandle fence, gnOutputDeviceHandle device);
     void (*_gnSignalFence)(gnFenceHandle fence);
     void (*_gnWaitForFence)(gnFenceHandle fence, uint64_t timeout);