From 248837900a5c505715c0e5630debdb70e57bdfcd Mon Sep 17 00:00:00 2001
From: Robert Konrad <git2016@robdangero.us>
Date: Tue, 4 Feb 2025 14:35:58 +0100
Subject: [PATCH] Go Vulkan 1.3 for now and implement render passes

---
 .../Vulkan/Sources/kope/vulkan/commandlist.c  | 62 ++++++++++++++++++-
 .../Vulkan/Sources/kope/vulkan/device.c       |  6 +-
 .../Sources/kope/vulkan/texture_structs.h     |  4 +-
 3 files changed, 63 insertions(+), 9 deletions(-)

diff --git a/Backends/Graphics5/Vulkan/Sources/kope/vulkan/commandlist.c b/Backends/Graphics5/Vulkan/Sources/kope/vulkan/commandlist.c
index f17dae760..59581b8cb 100644
--- a/Backends/Graphics5/Vulkan/Sources/kope/vulkan/commandlist.c
+++ b/Backends/Graphics5/Vulkan/Sources/kope/vulkan/commandlist.c
@@ -17,9 +17,66 @@ void kope_vulkan_command_list_destroy(kope_g5_command_list *list) {
 	vkFreeCommandBuffers(list->vulkan.device, list->vulkan.command_pool, 1, &list->vulkan.command_buffer);
 }
 
-void kope_vulkan_command_list_begin_render_pass(kope_g5_command_list *list, const kope_g5_render_pass_parameters *parameters) {}
+void kope_vulkan_command_list_begin_render_pass(kope_g5_command_list *list, const kope_g5_render_pass_parameters *parameters) {
+	const kope_g5_texture *texture = parameters->color_attachments[0].texture.texture;
+
+	const VkClearValue clear_value = {
+	    .color =
+	        {
+	            .float32 = {0.0f, 0.0f, 0.0f, 1.0f},
+	        },
+	    .depthStencil =
+	        {
+	            .depth = 1.0f,
+	            .stencil = 0,
+	        },
+	};
 
-void kope_vulkan_command_list_end_render_pass(kope_g5_command_list *list) {}
+	const VkRenderingAttachmentInfo color_attachment_info = {
+	    .sType = VK_STRUCTURE_TYPE_RENDERING_ATTACHMENT_INFO,
+	    .pNext = NULL,
+	    .imageView = texture->vulkan.image_view,
+	    .imageLayout = VK_IMAGE_LAYOUT_GENERAL,
+	    .resolveMode = VK_RESOLVE_MODE_NONE,
+	    .resolveImageView = VK_NULL_HANDLE,
+	    .resolveImageLayout = VK_IMAGE_LAYOUT_GENERAL,
+	    .loadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE,
+	    .storeOp = VK_ATTACHMENT_STORE_OP_STORE,
+	    .clearValue = clear_value,
+	};
+
+	const VkRect2D render_area = {
+	    .offset =
+	        {
+	            .x = 0,
+	            .y = 0,
+	        },
+	    .extent =
+	        {
+	            .width = texture->vulkan.width,
+	            .height = texture->vulkan.height,
+	        },
+	};
+
+	const VkRenderingInfo rendering_info = {
+	    .sType = VK_STRUCTURE_TYPE_RENDERING_INFO,
+	    .pNext = NULL,
+	    .flags = 0,
+	    .renderArea = render_area,
+	    .layerCount = 1,
+	    .viewMask = 0,
+	    .colorAttachmentCount = 1,
+	    .pColorAttachments = &color_attachment_info,
+	    .pDepthAttachment = VK_NULL_HANDLE,
+	    .pStencilAttachment = VK_NULL_HANDLE,
+	};
+
+	vkCmdBeginRendering(list->vulkan.command_buffer, &rendering_info);
+}
+
+void kope_vulkan_command_list_end_render_pass(kope_g5_command_list *list) {
+	vkCmdEndRendering(list->vulkan.command_buffer);
+}
 
 void kope_vulkan_command_list_present(kope_g5_command_list *list) {}
 
@@ -32,7 +89,6 @@ void kope_vulkan_command_list_set_vertex_buffer(kope_g5_command_list *list, uint
 void kope_vulkan_command_list_set_render_pipeline(kope_g5_command_list *list, kope_vulkan_render_pipeline *pipeline) {}
 
 void kope_vulkan_command_list_draw(kope_g5_command_list *list, uint32_t vertex_count, uint32_t instance_count, uint32_t first_vertex, uint32_t first_instance) {
-
 }
 
 void kope_vulkan_command_list_draw_indexed(kope_g5_command_list *list, uint32_t index_count, uint32_t instance_count, uint32_t first_index, int32_t base_vertex,
diff --git a/Backends/Graphics5/Vulkan/Sources/kope/vulkan/device.c b/Backends/Graphics5/Vulkan/Sources/kope/vulkan/device.c
index 1e884ef48..ab7e62d3c 100644
--- a/Backends/Graphics5/Vulkan/Sources/kope/vulkan/device.c
+++ b/Backends/Graphics5/Vulkan/Sources/kope/vulkan/device.c
@@ -318,11 +318,7 @@ void kope_vulkan_device_create(kope_g5_device *device, const kope_g5_device_wish
 	    .applicationVersion = 0,
 	    .pEngineName = "Kope",
 	    .engineVersion = 0,
-#ifdef KINC_VKRT
-	    .apiVersion = VK_API_VERSION_1_2,
-#else
-	    .apiVersion = VK_API_VERSION_1_0,
-#endif
+	    .apiVersion = VK_API_VERSION_1_3,
 	};
 
 	const VkInstanceCreateInfo instance_create_info = {
diff --git a/Backends/Graphics5/Vulkan/Sources/kope/vulkan/texture_structs.h b/Backends/Graphics5/Vulkan/Sources/kope/vulkan/texture_structs.h
index ad81a1e20..d685e69ec 100644
--- a/Backends/Graphics5/Vulkan/Sources/kope/vulkan/texture_structs.h
+++ b/Backends/Graphics5/Vulkan/Sources/kope/vulkan/texture_structs.h
@@ -6,7 +6,9 @@ extern "C" {
 #endif
 
 typedef struct kope_vulkan_texture {
-	int nothing;
+	uint32_t width;
+	uint32_t height;
+	VkImageView image_view;
 } kope_vulkan_texture;
 
 #ifdef __cplusplus