From 987ce544290dfc70b80333dca8c9b8b301f53525 Mon Sep 17 00:00:00 2001
From: PedroEdiaz <ppedroediaz@gmail.com>
Date: Sun, 1 Dec 2024 21:08:35 -0600
Subject: [PATCH] Read Klein file

---
 src/main.c    | 12 +++++-------
 src/main.h    |  9 +++------
 src/surface.c | 38 ++++++++------------------------------
 3 files changed, 16 insertions(+), 43 deletions(-)

diff --git a/src/main.c b/src/main.c
index 71bb0f0..15dddc2 100644
--- a/src/main.c
+++ b/src/main.c
@@ -15,9 +15,6 @@
 #define M_PI 3.14159
 #endif
 
-float *generate_data_surface(unsigned char *, unsigned long *);
-float *generate_normals_surface(float *, unsigned char, unsigned long);
-
 struct projection projection = {.x = 0, .y = 1, .z = 2, .w = 3};
 
 const char *wname = "manigraph: manifold grapher";
@@ -134,9 +131,11 @@ int main(void)
 	{
 		struct surface surface;
 
-		surface.data = generate_data_surface(&surface.dim, &surface.vertex);
-		surface.norm =
-			generate_normals_surface(surface.data, surface.dim, surface.vertex);
+		if( create_surface_klein("test.klein", &surface) )
+		{
+			mlog("[MESH] Error al leer el archivo...\n");
+			goto error_mesh_surface;
+		}
 
 		if (!(m_surface = create_mesh(surface)))
 		{
@@ -146,7 +145,6 @@ int main(void)
 
 		projection.m = surface.dim;
 		projection.mesh = m_surface;
-
 		set_projection_mesh(projection);
 
 		free(surface.norm);
diff --git a/src/main.h b/src/main.h
index 33ca763..6ae5ebd 100644
--- a/src/main.h
+++ b/src/main.h
@@ -36,6 +36,7 @@ struct projection
 		vertex: the number of vertex
 		dim: the dimentions of the surface
 */
+
 struct surface
 {
 	float *data, *norm;
@@ -50,6 +51,8 @@ struct surface
 		name: Name of the window.
 */
 
+int create_surface_klein( unsigned char *, struct surface *  );
+
 window_t init_window(unsigned int w, unsigned int h, const char *name);
 
 void use_window(window_t window);
@@ -176,9 +179,3 @@ void destroy_texture(id_t texture);
 id_t create_palette_texture(const unsigned char colors[][4], unsigned char n);
 
 quat_t poll_input(window_t window);
-
-#ifdef EMSCRIPTEN
-#ifdef GLAD
-#error undefine GLAD on src/main.h please
-#endif
-#endif
diff --git a/src/surface.c b/src/surface.c
index 0d45bb4..1375645 100644
--- a/src/surface.c
+++ b/src/surface.c
@@ -32,44 +32,22 @@ struct parm
 } parm;
 
 // Función para escribir el archivo .klein
-void write_klein_file(const char *filename, unsigned char dim, unsigned long vertex, float *vertices, float *normals)
+int write_klein_file(const char *filename, unsigned char dim, unsigned long vertex, float *vertices, float *normals)
 {
     FILE *file = fopen(filename, "wb");
     if (!file)
-    {
-        perror("Error al abrir el archivo");
-        exit(EXIT_FAILURE);
-    }
+        return 1;
 
     // Escribir encabezado
     fwrite("KLEIN", 1, 5, file); // Los primeros 5 bytes son "KLEIN"
-    fputc(0, file);             // Byte vacío
+    fwrite("\0", 1, 1, file);             // Byte vacío
     fwrite(&dim, 1, 1, file);   // Dimensión de la superficie
-    fwrite(&vertex, sizeof(unsigned long), 1, file); // Número de vértices (8 bytes)
-
-    // Escribir dimensiones de la cuadrícula
-    fwrite(parm.grid, sizeof(unsigned char), dim, file);
-    // Debug info
-    for (int i = 0; i < dim; i++) { 
-    printf("Grid[%d]: %u\n", i, parm.grid[i]);
-    }
-
-    // Escribir vértices (en float)
-    fwrite(vertices, sizeof(float), vertex * dim, file);
-    // Debug info 
-    for (unsigned long i = 0; i < vertex * dim; i++) { 
-    printf("Vertices[%lu]: %f\n", i, vertices[i]); 
-    }
-
-    // Escribir normales (en float)
-    fwrite(normals, sizeof(float), vertex * dim, file);
-    // Debug info 
-    for (unsigned long i = 0; i < vertex * dim; i++) {
-    printf("Normals[%lu]: %f\n", i, normals[i]); 
-    }
+    fwrite(&vertex, 8, 1, file); // Número de vértices (8 bytes)
+    fwrite(vertices, 16, vertex * dim, file);
+    fwrite(normals, 16, vertex * dim, file);
 
     fclose(file);
-    printf("Archivo %s escrito correctamente.\n", filename);
+    return 0;
 }
 
 int factorial(int n)
@@ -390,7 +368,7 @@ int main()
 
     // Escribir el archivo
     printf("Escribiendo archivo .klein\n"); 
-    write_klein_file("kingtin.klein", dim, vertex, vertices, normals);
+    write_klein_file("test.klein", dim, vertex, vertices, normals);
 
     free(vertices);
     free(normals);