some housekeeping

README.md

@@ -41,6 +41,12 @@ Gryphn works to abstract away platform API functions (Vulkan, Metal, D3D11/D3D12
   - buffers store GPU data so that it can be used in shaders <br />
 - Textures:
   - Store image data so that it can be sampled in shaders <br />
+# Extentions
+- GN_EXT_SYNCHRONIZATION
+  - allows sync primatives (fence, semaphore) and sync functions (gnPresentationQueueGetImageAsync, gnSubmitSync, gnPresentSync)<br />
+  - Supported APIs<br />
+    - Vulkan <br />
+    - Metal* (metal support is buggy, fences are nonatomic so they cannot be used across multible threads) <br />
 
 # Validation
 Gryphn its an interesting API to work with so ive attempted to put together a somewhat comprehensive set of validation tools that will tell you what you (or I) am doing wrong. Gryphn currently has support for 2 validation layers but I plan to support more in the future <br />
@@ -61,7 +67,6 @@ Gryphn validation layers are meant to be more specific so there are certain ones
 - APIs like OpenGL dont support the full capabilities of vulkan so things like synchronization
 I currently am planning to move synchronization primatives to be an extension.
 Planned extensions: <br />
-  - GN_EXT_SYNCHRONIZATION, my only problem with this extension is that I might be able to fake support for things like semaphores in OpenGL, im not 100% sure yet<br />
   - GN_EXT_COMPUTE, while compute pipelines might be a vulkan standard they are not an OpenGL standard so this does need to be an exension <br /><br />
 - I will add more exensions as Gryphn grows in complexity, my current biggest task is going to be moving synchronization primatives over into extension land and not a core part of the Gryphn standard. My biggest problem with exentensions is that I don't want them to be something like, this feature is only supported on Vulkan which I think removes part of the reason for my making this project.
 #### Standardization

projects/apis/metal/src/pipelines/graphics_pipeline/metal_graphics_pipeline.m

@@ -103,8 +103,7 @@ gnReturnCode createMetalGraphicsPipeline(gnGraphicsPipeline graphicsPipeline, gn
 
     MTLDepthStencilDescriptor* depthStencilDesc = [[MTLDepthStencilDescriptor alloc] init];
     depthStencilDesc.depthWriteEnabled = info.depthStencil.depthWriteEnable;
-    depthStencilDesc.depthCompareFunction = MTLCompareFunctionLess;
+    depthStencilDesc.depthCompareFunction = mtlGrypnCompareOperation(info.depthStencil.operation);
-
     graphicsPipeline->graphicsPipeline->depthState = [device->outputDevice->device newDepthStencilStateWithDescriptor:depthStencilDesc];
 
     [descriptor setVertexDescriptor:vertexDescriptor];

projects/apis/metal/src/shader_module/metal_shader_module.m

@@ -31,14 +31,6 @@ gnReturnCode createMetalShaderModule(gnShaderModule module, gnDevice device, gnS
 
     spvc_compiler_create_shader_resources(compiler, &resources);
 
-    spvc_resources_get_resource_list_for_type(resources, SPVC_RESOURCE_TYPE_SHADER_RECORD_BUFFER, &list, &count);
-    for (int i = 0; i < count; i++) {
-        uint32_t set = spvc_compiler_get_decoration(compiler, list[i].id, SpvDecorationDescriptorSet),
-                 binding = spvc_compiler_get_decoration(compiler, list[i].id, SpvDecorationBinding),
-        mslBinding = spvc_compiler_msl_get_automatic_resource_binding(compiler, list[i].id);
-        printf("%s: set %ui, binding %ui, mslBinding %ui\n", list[i].name, set, binding, mslBinding);
-    }
-
     spvc_resources_get_resource_list_for_type(resources, SPVC_RESOURCE_TYPE_UNIFORM_BUFFER, &list, &count);
     // [[buffer(0)]] is reserved for stage_in, [[buffer(1)]] is reserved for push_constant
     uint32_t currentBufferBinding = 2, currentTextureBinding = 0;

projects/apis/metal/src/texture/metal_texture.m

@@ -46,7 +46,7 @@ gnReturnCode createMetalTexture(gnTexture texture, gnDevice device, const gnText
 void metalTextureData(gnTextureHandle texture, void* pixelData) {
     MTLRegion region = {
         { 0, 0, 0 },
-        {texture->info.extent.width, texture->info.extent.width, texture->info.extent.depth}
+        {texture->info.extent.width, texture->info.extent.height, texture->info.extent.depth}
     };
 
     NSUInteger bytesPerRow = 4 * texture->info.extent.width; // TODO: fix this should not be set to 4
@@ -54,7 +54,6 @@ void metalTextureData(gnTextureHandle texture, void* pixelData) {
                 mipmapLevel:0
                   withBytes:pixelData
                 bytesPerRow:bytesPerRow];
-
 }
 
 void metalDestroyTexture(gnTexture texture) {

projects/apis/vulkan/src/presentation_queue/vulkan_presentation_queue.c

@@ -87,12 +87,9 @@ gnReturnCode getVulkanPresentQueueImage(gnPresentationQueueHandle presentationQu
         presentationQueue->outputDevice->outputDevice->device,
         presentationQueue->presentationQueue->swapChain,
         UINT64_MAX, VK_NULL_HANDLE, presentationQueue->outputDevice->outputDevice->barrierFence, imageIndex);
-
     if (result == VK_ERROR_OUT_OF_DATE_KHR) return GN_OUT_OF_DATE_PRESENTATION_QUEUE;
     if (result == VK_SUBOPTIMAL_KHR) return GN_SUBOPTIMAL_PRESENTATION_QUEUE;
-
     vkWaitForFences(presentationQueue->outputDevice->outputDevice->device, 1, &presentationQueue->outputDevice->outputDevice->barrierFence, VK_TRUE, UINT64_MAX);
-
     return GN_SUCCESS;
 }
 

projects/apis/vulkan/src/sync/fence/vulkan_fence.c

@@ -6,6 +6,7 @@ gnReturnCode createFence(gnFence fence, gnDevice device) {
     VkFenceCreateInfo fenceInfo = {
         .sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO
     };
+
     if (vkCreateFence(device->outputDevice->device, &fenceInfo, NULL, &fence->fence->fence) != VK_SUCCESS)
         return GN_FAILED_TO_CREATE_FENCE;
     return GN_SUCCESS;

projects/core/src/gryphn_handles.h

@@ -1,5 +1,7 @@
 #pragma once
 
+#define GN_NULL_HANDLE 0
+
 #define GN_HANDLE(type) \
 typedef struct type##_t* type##Handle; \
 typedef struct type##_t* type

projects/core/src/instance/gryphn_instance.c

@@ -9,7 +9,6 @@ gnReturnCode gnCreateInstance(gnInstanceHandle* instance, gnInstanceInfo info) {
     *instance = malloc(sizeof(struct gnInstance_t));
 
     (*instance)->layers = loaderLayerArrayListCreate();
-
     loaderLayerArrayListAdd(&(*instance)->layers, loadLayer((loaderInfo){
         .api = info.renderingAPI,
         .layerToLoad = api_layer

projects/platform/platform_macos/gryphn_platform_macos.m

@@ -27,6 +27,7 @@ CAMetalLayer* gnCreateCAMetalLayer(NSWindow* window) {
     [layer setFramebufferOnly:YES];
     [view setLayer:layer];
     [view setWantsLayer:YES];
+    // [layer setDisplaySyncEnabled:NO];
     CGSize viewSize = view.bounds.size;
     CGFloat scale = window.screen.backingScaleFactor;
     layer.pixelFormat = MTLPixelFormatBGRA8Unorm;