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-rw-r--r--src/renderer/backends/backend_vulkan.c102
1 files changed, 100 insertions, 2 deletions
diff --git a/src/renderer/backends/backend_vulkan.c b/src/renderer/backends/backend_vulkan.c
index ba12696..f6fc505 100644
--- a/src/renderer/backends/backend_vulkan.c
+++ b/src/renderer/backends/backend_vulkan.c
@@ -28,6 +28,8 @@
#include <glfw3.h>
+KITC_DECL_TYPED_ARRAY(VkLayerProperties)
+
typedef struct vulkan_device {
VkPhysicalDevice physical_device;
VkDevice logical_device;
@@ -40,6 +42,7 @@ typedef struct vulkan_device {
VkQueue present_queue;
VkQueue compute_queue;
VkQueue transfer_queue;
+ VkCommandPool gfx_command_pool;
VkPhysicalDeviceProperties properties;
VkPhysicalDeviceFeatures features;
VkPhysicalDeviceMemoryProperties memory;
@@ -86,6 +89,9 @@ typedef enum vulkan_command_buffer_state {
COMMAND_BUFFER_STATE_READY,
COMMAND_BUFFER_STATE_IN_RENDER_PASS,
COMMAND_BUFFER_STATE_RECORDING,
+ COMMAND_BUFFER_STATE_RECORDING_ENDED,
+ COMMAND_BUFFER_STATE_SUBMITTED,
+ COMMAND_BUFFER_STATE_NOT_ALLOCATED,
} vulkan_command_buffer_state;
typedef struct vulkan_command_buffer {
@@ -93,6 +99,8 @@ typedef struct vulkan_command_buffer {
vulkan_command_buffer_state state;
} vulkan_command_buffer;
+KITC_DECL_TYPED_ARRAY(vulkan_command_buffer)
+
typedef struct vulkan_context {
VkInstance instance;
VkAllocationCallbacks* allocator;
@@ -102,6 +110,8 @@ typedef struct vulkan_context {
u32 framebuffer_height;
vulkan_swapchain swapchain;
vulkan_renderpass main_renderpass;
+ vulkan_command_buffer_darray* gfx_command_buffers;
+
u32 image_index;
u32 current_frame;
@@ -118,8 +128,6 @@ static vulkan_context context;
typedef struct vulkan_state {
} vulkan_state;
-KITC_DECL_TYPED_ARRAY(VkLayerProperties)
-
bool select_physical_device(vulkan_context* ctx) {
u32 physical_device_count = 0;
VK_CHECK(vkEnumeratePhysicalDevices(ctx->instance, &physical_device_count, 0));
@@ -255,6 +263,14 @@ bool vulkan_device_create(vulkan_context* context) {
vkGetDeviceQueue(context->device.logical_device, context->device.transfer_queue_index, 0,
&context->device.transfer_queue);
+ // create command pool for graphics queue
+ VkCommandPoolCreateInfo pool_create_info = { VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO };
+ pool_create_info.queueFamilyIndex = context->device.graphics_queue_index;
+ pool_create_info.flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT;
+ vkCreateCommandPool(context->device.logical_device, &pool_create_info, context->allocator,
+ &context->device.gfx_command_pool);
+ INFO("Created Command Pool")
+
return true;
}
void vulkan_device_destroy(vulkan_context* context) {
@@ -365,6 +381,74 @@ void vulkan_image_create(vulkan_context* context, VkImageType image_type, u32 wi
// TODO: vulkan_image_destroy
+void vulkan_command_buffer_allocate(vulkan_context* context, VkCommandPool pool, bool is_primary,
+ vulkan_command_buffer* out_command_buffer) {
+ VkCommandBufferAllocateInfo allocate_info = { VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO };
+ allocate_info.commandPool = pool;
+ allocate_info.level =
+ is_primary ? VK_COMMAND_BUFFER_LEVEL_PRIMARY : VK_COMMAND_BUFFER_LEVEL_SECONDARY;
+ allocate_info.commandBufferCount = 1;
+ allocate_info.pNext = 0;
+
+ out_command_buffer->state = COMMAND_BUFFER_STATE_NOT_ALLOCATED;
+ vkAllocateCommandBuffers(context->device.logical_device, &allocate_info,
+ &out_command_buffer->handle);
+ out_command_buffer->state = COMMAND_BUFFER_STATE_READY;
+}
+
+void vulkan_command_buffer_free(vulkan_context* context, VkCommandPool pool,
+ vulkan_command_buffer* out_command_buffer) {
+ // TODO: implement freeing
+}
+
+void vulkan_command_buffer_begin(vulkan_command_buffer* command_buffer, bool is_single_use,
+ bool is_renderpass_continue, bool is_simultaneous_use) {
+ VkCommandBufferBeginInfo begin_info = { VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO };
+ begin_info.flags = 0;
+ if (is_single_use) {
+ begin_info.flags |= VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT;
+ }
+ // TODO: RENDER_PASS_CONTINUE_BIT & SIMULTANEOUS_USE_BIT
+
+ begin_info.pNext = 0;
+ begin_info.pInheritanceInfo = 0;
+ vkBeginCommandBuffer(command_buffer->handle, &begin_info);
+
+ command_buffer->state = COMMAND_BUFFER_STATE_RECORDING;
+}
+
+void vulkan_command_buffer_end(vulkan_command_buffer* command_buffer) {
+ VK_CHECK(vkEndCommandBuffer(command_buffer->handle));
+ command_buffer->state = COMMAND_BUFFER_STATE_RECORDING_ENDED;
+}
+void vulkan_command_buffer_update_submitted(vulkan_command_buffer* command_buffer) {
+ command_buffer->state = COMMAND_BUFFER_STATE_SUBMITTED;
+}
+void vulkan_command_buffer_reset(vulkan_command_buffer* command_buffer) {
+ command_buffer->state = COMMAND_BUFFER_STATE_READY;
+}
+
+void vulkan_command_buffer_allocate_and_begin_oneshot(vulkan_context* context, VkCommandPool pool,
+ vulkan_command_buffer* out_command_buffer) {
+ vulkan_command_buffer_allocate(context, pool, true, out_command_buffer);
+ vulkan_command_buffer_begin(out_command_buffer, true, false, false);
+}
+
+void vulkan_command_buffer_end_oneshot(vulkan_context* context, VkCommandPool pool,
+ vulkan_command_buffer* command_buffer, VkQueue queue) {
+ vulkan_command_buffer_end(command_buffer);
+
+ // submit to queue
+ VkSubmitInfo submit_info = { VK_STRUCTURE_TYPE_SUBMIT_INFO };
+ submit_info.commandBufferCount = 1;
+ submit_info.pCommandBuffers = &command_buffer->handle;
+ VK_CHECK(vkQueueSubmit(queue, 1, &submit_info, 0));
+ // wait for it to finish
+ VK_CHECK(vkQueueWaitIdle(queue));
+
+ vulkan_command_buffer_free(context, pool, command_buffer);
+}
+
void vulkan_swapchain_create(vulkan_context* context, u32 width, u32 height,
vulkan_swapchain* out_swapchain) {
VkExtent2D swapchain_extent = { width, height };
@@ -617,6 +701,17 @@ void vulkan_renderpass_end(vulkan_command_buffer* command_buffer, vulkan_renderp
command_buffer->state = COMMAND_BUFFER_STATE_RECORDING;
}
+void create_command_buffers(renderer* ren) {
+ if (!context.gfx_command_buffers) {
+ context.gfx_command_buffers = vulkan_command_buffer_darray_new(context.swapchain.image_count);
+ }
+
+ for (u32 i = 0; i < context.swapchain.image_count; i++) {
+ vulkan_command_buffer_allocate(&context, context.device.gfx_command_pool, true,
+ &context.gfx_command_buffers->data[i]);
+ }
+}
+
bool gfx_backend_init(renderer* ren) {
INFO("loading Vulkan backend");
@@ -739,6 +834,9 @@ bool gfx_backend_init(renderer* ren) {
vec4(0, 0, context.framebuffer_width, context.framebuffer_height),
vec4(0.0, 0.0, 0.2, 1.0), 1.0, 0);
+ // Command buffers creation
+ create_command_buffers(ren);
+
INFO("Vulkan renderer initialisation succeeded");
return true;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-01-10 14:03:14 +0000