From 84a29764c064362ddd183e46ac00980b95c9cb6f Mon Sep 17 00:00:00 2001
From: Greg Wells <gregory@Gregs-MacBook-Pro.local>
Date: Fri, 23 May 2025 21:03:15 -0400
Subject: [PATCH] add helper functions to get queue indices

---
 src/core/debugger/gryphn_debugger.c           |  9 +++++
 src/core/debugger/gryphn_debugger.h           |  2 ++
 .../gryphn_physical_output_device.c           | 36 ++++++++++++++++---
 .../gryphn_physical_output_device.h           |  3 ++
 4 files changed, 45 insertions(+), 5 deletions(-)

diff --git a/src/core/debugger/gryphn_debugger.c b/src/core/debugger/gryphn_debugger.c
index c7217bb..318076a 100644
--- a/src/core/debugger/gryphn_debugger.c
+++ b/src/core/debugger/gryphn_debugger.c
@@ -13,3 +13,12 @@ gnReturnCode gnCreateDebugger(gnDebugger* debugger, gnInstance* instance, const
 void gnDestroyDebugger(gnDebugger* debugger) {
     debugger->instance->functions->_gnDestroyDebugger(debugger);
 }
+
+void gnDebuggerSetErrorMessage(gnDebugger* debugger, gnMessageData data) {
+    debugger->info.callback(
+        GN_MESSAGE_ERROR,
+        GN_DEBUG_MESSAGE_VALIDATION,
+        data,
+        debugger->info.userData
+    );
+}
diff --git a/src/core/debugger/gryphn_debugger.h b/src/core/debugger/gryphn_debugger.h
index c83d548..317c083 100644
--- a/src/core/debugger/gryphn_debugger.h
+++ b/src/core/debugger/gryphn_debugger.h
@@ -52,3 +52,5 @@ typedef struct gnDebugger_t {
 
 gnReturnCode gnCreateDebugger(gnDebugger* debugger, gnInstance* instance, const struct gnDebuggerInfo_t info);
 void gnDestroyDebugger(gnDebugger* debugger);
+
+void gnDebuggerSetErrorMessage(gnDebugger* debugger, gnMessageData data);
diff --git a/src/core/output_device/gryphn_physical_output_device.c b/src/core/output_device/gryphn_physical_output_device.c
index 10a64c4..db0386a 100644
--- a/src/core/output_device/gryphn_physical_output_device.c
+++ b/src/core/output_device/gryphn_physical_output_device.c
@@ -13,15 +13,41 @@ gnPhysicalDevice* gnGetPhyscialDevices(gnInstance* instance, uint32_t* count) {
 
 gnBool gnQueueCanPresentToSurface(const struct gnPhysicalDevice_t device, uint32_t queueIndex, const struct gnWindowSurface_t windowSurface) {
     if (queueIndex >= device.queueProperties.queueCount) {
-        device.instance->debugger->info.callback(
-            GN_MESSAGE_ERROR,
-            GN_DEBUG_MESSAGE_VALIDATION,
+        gnDebuggerSetErrorMessage(device.instance->debugger,
             (gnMessageData){
                 .message = gnCreateString("gnQueueCanPresentToSurface queue index passed in is large then queueProperties.queueCount")
-            },
-            NULL
+            }
         );
         return gnFalse;
     }
     return device.instance->functions->_gnQueueCanPresentToSurface(device, queueIndex, windowSurface);
 }
+
+int gnGetGraphicsQueueIndex(const struct gnPhysicalDevice_t device) {
+    for (int i = 0; i < device.queueProperties.queueCount; i++) {
+        if (device.queueProperties.queueProperties[i].queueType & GN_QUEUE_GRAPHICS) {
+            return i;
+            break;
+        }
+    }
+    gnDebuggerSetErrorMessage(device.instance->debugger,
+        (gnMessageData){
+            .message = gnCreateString("gnGetGraphicsQueueIndex failed no queue that support graphics on this device")
+        }
+    );
+    return -1;
+}
+int gnGetPresentQueueIndex(const struct gnPhysicalDevice_t device, struct gnWindowSurface_t windowSurface) {
+    for (int i = 0; i < device.queueProperties.queueCount; i++) {
+        if (gnQueueCanPresentToSurface(device, i, windowSurface)) {
+            return i;
+            break;
+        }
+    }
+    gnDebuggerSetErrorMessage(device.instance->debugger,
+        (gnMessageData){
+            .message = gnCreateString("gnGetPresentQueueIndex failed no queue that support presenting to this window surface")
+        }
+    );
+    return -1;
+}
diff --git a/src/core/output_device/gryphn_physical_output_device.h b/src/core/output_device/gryphn_physical_output_device.h
index b8d4257..372cb9d 100644
--- a/src/core/output_device/gryphn_physical_output_device.h
+++ b/src/core/output_device/gryphn_physical_output_device.h
@@ -40,3 +40,6 @@ typedef struct gnPhysicalDevice_t {
 
 gnPhysicalDevice* gnGetPhyscialDevices(gnInstance* instance, uint32_t* count);
 gnBool gnQueueCanPresentToSurface(const struct gnPhysicalDevice_t device, uint32_t queueIndex, const struct gnWindowSurface_t windowSurface);
+
+int gnGetGraphicsQueueIndex(const struct gnPhysicalDevice_t device);
+int gnGetPresentQueueIndex(const struct gnPhysicalDevice_t device, struct gnWindowSurface_t windowSurface);