Añadiendo mlx

lib/mlx/src/mlx_loop.c

@@ -0,0 +1,128 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        ::::::::            */
+/*   mlx_loop.c                                         :+:    :+:            */
+/*                                                     +:+                    */
+/*   By: W2Wizard <main@w2wizard.dev>                 +#+                     */
+/*                                                   +#+                      */
+/*   Created: 2021/12/28 01:24:36 by W2Wizard      #+#    #+#                 */
+/*   Updated: 2023/03/28 16:34:17 by W2Wizard      ########   odam.nl         */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "MLX42/MLX42_Int.h"
+
+//= Private =//
+
+static void mlx_exec_loop_hooks(mlx_t* mlx)
+{
+	const mlx_ctx_t* mlxctx = mlx->context;
+
+	mlx_list_t* lstcpy = mlxctx->hooks;
+	while (lstcpy && !glfwWindowShouldClose(mlx->window))
+	{
+		mlx_hook_t* hook = ((mlx_hook_t*)lstcpy->content);
+		hook->func(hook->param);
+		lstcpy = lstcpy->next;
+	}
+}
+
+static void mlx_render_images(mlx_t* mlx)
+{
+	mlx_ctx_t* mlxctx = mlx->context;
+	mlx_list_t* imglst = mlxctx->images;
+
+	if (sort_queue)
+	{
+		sort_queue = false;
+		mlx_sort_renderqueue(&mlxctx->render_queue);
+	}
+
+	// Upload image textures to GPU
+	while (imglst)
+	{
+		mlx_image_t* image;
+		if (!(image = imglst->content)) {
+			mlx_error(MLX_INVIMG);
+			return;
+		}
+
+		glBindTexture(GL_TEXTURE_2D, ((mlx_image_ctx_t*)image->context)->texture);
+		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, image->width, image->height, 0, GL_RGBA, GL_UNSIGNED_BYTE, image->pixels);
+		imglst = imglst->next;
+	}
+
+	// Execute draw calls
+	mlx_list_t* render_queue = mlxctx->render_queue;
+	while (render_queue)
+	{
+		draw_queue_t* drawcall = render_queue->content;
+		mlx_instance_t* instance =  &drawcall->image->instances[drawcall->instanceid];
+
+		if (drawcall && drawcall->image->enabled && instance->enabled)
+			mlx_draw_instance(mlx->context, drawcall->image, instance);
+		render_queue = render_queue->next;
+	}
+}
+
+//= Public =//
+
+bool mlx_loop_hook(mlx_t* mlx, void (*f)(void*), void* param)
+{
+	MLX_NONNULL(mlx);
+	MLX_NONNULL(f);
+
+	mlx_hook_t* hook;
+	if (!(hook = malloc(sizeof(mlx_hook_t))))
+		return (mlx_error(MLX_MEMFAIL));
+
+	mlx_list_t* lst;
+	if (!(lst = mlx_lstnew(hook)))
+	{
+		free(hook);
+		return (mlx_error(MLX_MEMFAIL));
+	}
+	hook->func = f;
+	hook->param = param;
+	const mlx_ctx_t	*mlxctx = mlx->context;
+	mlx_lstadd_back((mlx_list_t**)(&mlxctx->hooks), lst);
+	return (true);
+}
+
+// glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
+/**
+ * In Emscripten the lood is defined differently, there the this function
+ * is passed to the while loop instead
+ */
+void mlx_loop(mlx_t* mlx)
+{
+	MLX_NONNULL(mlx);
+
+#ifdef EMSCRIPTEN
+	static double start, oldstart = 0;
+#else
+	double start, oldstart = 0;
+    while (!glfwWindowShouldClose(mlx->window))
+	{
+#endif
+		start = glfwGetTime();
+		mlx->delta_time = start - oldstart;
+		oldstart = start;
+
+		glClearColor(0.2f, 0.2f, 0.2f, 1.0f);
+		glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+		glfwGetWindowSize(mlx->window, &(mlx->width), &(mlx->height));
+
+		if ((mlx->width > 1 || mlx->height > 1))
+			mlx_update_matrix(mlx);
+
+		mlx_exec_loop_hooks(mlx);
+		mlx_render_images(mlx);
+		mlx_flush_batch(mlx->context);
+
+		glfwSwapBuffers(mlx->window);
+		glfwPollEvents();
+#ifndef EMSCRIPTEN
+	}
+#endif
+}