Restructure things a little to enable multiple models

gpu.h

@@ -33,13 +33,6 @@ typedef struct {
 	VkShaderModule frag_shader;
 	VkDescriptorSetLayout desc_set_layout;
 	VkDescriptorPool desc_pool;
-	VkDescriptorSet desc_sets[MAX_FRAMES_IN_FLIGHT];
-	VkBuffer mvp_buffer;
-	VkDeviceMemory mvp_buffer_mem;
-	mvp_t *mvps;
-	VkBuffer bone_matrix_buffer;
-	VkDeviceMemory bone_matrix_buffer_mem;
-	mat4_t *bone_matrices;
 	VkPipelineLayout pipeline_layout;
 	VkRenderPass render_pass;
 	VkPipeline pipeline;
@@ -48,22 +41,41 @@ typedef struct {
 	VkFence in_flight;
 	VkSemaphore render_fin;
 	VkSemaphore img_avail;
-	VkBuffer vertex_buf;
-	VkDeviceMemory vertex_buf_mem;
-	VkBuffer index_buf;
-	VkDeviceMemory index_buf_mem;
-	size_t index_count;
-	size_t bone_count;
+	VkBuffer staging_buf;
+	VkDeviceMemory staging_mem;
+	void *staging_ptr;
+	VkCommandPool transient_cmd_pool;
+	uint32_t active_img_index;
 } gpu_ctx_t;
 
 typedef struct {
-	const char *application_name;
-	GLFWwindow *window;
-} gpu_config_t;
+	mvp_t *mvp_ptr;
+	mat4_t *bone_ptr;
+	VkBuffer vertex_buf;
+	VkDeviceMemory vertex_mem;
+	VkBuffer index_buf;
+	VkDeviceMemory index_mem;
+	VkDescriptorSet desc_sets[MAX_FRAMES_IN_FLIGHT];
+	VkBuffer mvp_buf;
+	VkDeviceMemory mvp_mem;
+	VkBuffer bone_buf;
+	VkDeviceMemory bone_mem;
+	size_t index_count;
+	size_t bone_count;
+} gpu_model_t;
 
-void gpu_init(gpu_ctx_t *ctx, const gpu_config_t *config, model_t model);
+void gpu_init(gpu_ctx_t *ctx, GLFWwindow *window, const char *name);
 void gpu_cleanup(const gpu_ctx_t *ctx);
-void gpu_render(
-    const gpu_ctx_t *ctx, const mvp_t *mvp, const mat4_t *bone_matrices);
+
+void gpu_model_load(
+    const gpu_ctx_t *ctx, const model_t *model, gpu_model_t *out);
+void gpu_model_cleanup(const gpu_ctx_t *ctx, const gpu_model_t *model);
+
+void gpu_render_begin(gpu_ctx_t *ctx);
+void gpu_render_model(
+    const gpu_ctx_t *ctx, const gpu_model_t *model, const mvp_t *mvp,
+
+    const mat4_t *bone_matrices);
+void gpu_render_submit(gpu_ctx_t *ctx);
 
 #endif