faster code: unsigned int

src/args.c

@@ -3,9 +3,9 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include "args.h"
 #include "config.h"
 #include "logs.h"
+#include "types.h"
 
 static void print_help(int status_code) {
   puts(PACKAGE

src/forge.c

@@ -26,7 +26,7 @@ static void key_callback(Window *window, int key,
   }
 }
 
-static int compute_fps(Window *window, Timer *timer) {
+static unsigned int compute_fps(Window *window, Timer *timer) {
   static double fps;
   char title[100];
 
@@ -36,12 +36,12 @@ static int compute_fps(Window *window, Timer *timer) {
     window_update_title(window, title);
   }
 
-  return (int)round(fps);
+  return (unsigned int)round(fps);
 }
 
 static void hot_reload(ShaderProgram program, File *common_shader_code,
                        File *fragment_shaders) {
-  int i;
+  unsigned int i;
   bool force_update;
 
   force_update = false;
@@ -78,7 +78,7 @@ static void loop(Window *window, ShaderProgram program, bool hr,
   window_refresh(window);
 }
 
-File read_fragment_shader_file(char *frag_path, int i) {
+File read_fragment_shader_file(char *frag_path, unsigned int i) {
   File fragment_shader;
   char *file_path;
 
@@ -95,7 +95,7 @@ File read_fragment_shader_file(char *frag_path, int i) {
 
 static void init_files(char *frag_path, File *common_shader_code,
                        File *fragment_shaders) {
-  int i;
+  unsigned int i;
 
   for (i = 0; i < FRAG_COUNT + 1; i++) {
     if (i == 0) {
@@ -109,7 +109,7 @@ static void init_files(char *frag_path, File *common_shader_code,
 }
 
 static void free_files(File *common_shader_code, File *fragment_shaders) {
-  int i;
+  unsigned int i;
 
   for (i = 0; i < FRAG_COUNT; i++) {
     file_free(&fragment_shaders[i], true);

src/shaders.c

@@ -33,7 +33,7 @@ static bool compile_shader(GLuint shader_id, char *name, char *source_code) {
 }
 
 static void init_textures(ShaderProgram *program, Context context) {
-  int i;
+  unsigned int i;
 
   glGenTextures(TEX_COUNT, program->textures);
 
@@ -56,7 +56,7 @@ static void init_textures(ShaderProgram *program, Context context) {
 }
 
 static void init_framebuffers(ShaderProgram *program) {
-  int i, j;
+  unsigned int i, j;
 
   glGenFramebuffers(FRAG_COUNT, program->frame_buffers);
 
@@ -98,7 +98,7 @@ static void init_vertices(ShaderProgram *program) {
 }
 
 static void init_shaders(ShaderProgram *program, File *fragment_shaders) {
-  int i;
+  unsigned int i;
 
   // compile vertex shader
   program->vertex_shader = glCreateShader(GL_VERTEX_SHADER);
@@ -124,8 +124,9 @@ static void init_shaders(ShaderProgram *program, File *fragment_shaders) {
   }
 }
 
-static void init_single_program(ShaderProgram *program, int i, bool output) {
+static void init_single_program(ShaderProgram *program, unsigned int i,
-  int j;
+                                bool output) {
+  unsigned int j;
   char name[32];
 
   program->programs[i] = glCreateProgram();
@@ -187,7 +188,7 @@ static void init_single_program(ShaderProgram *program, int i, bool output) {
 }
 
 ShaderProgram shaders_init(File *fragment_shaders, Context context) {
-  int i;
+  unsigned int i;
   ShaderProgram program;
 
   program.error = false;
@@ -219,7 +220,8 @@ ShaderProgram shaders_init(File *fragment_shaders, Context context) {
   return program;
 }
 
-void shaders_update(ShaderProgram program, File *fragment_shaders, int i) {
+void shaders_update(ShaderProgram program, File *fragment_shaders,
+                    unsigned int i) {
   bool result;
 
   result = compile_shader(program.fragment_shaders[i], fragment_shaders[i].path,
@@ -233,7 +235,7 @@ void shaders_update(ShaderProgram program, File *fragment_shaders, int i) {
 }
 
 void shaders_apply(ShaderProgram program, Context context) {
-  int i, j;
+  unsigned int i, j;
   GLuint subroutines[3];
   vec2 resolution;
 

src/shaders.h

@@ -5,7 +5,8 @@
 
 ShaderProgram shaders_init(File *fragment_shader, Context context);
 
-void shaders_update(ShaderProgram program, File *fragment_shaders, int i);
+void shaders_update(ShaderProgram program, File *fragment_shaders,
+                    unsigned int i);
 
 void shaders_apply(ShaderProgram program, Context context);
 

src/timer.c

@@ -26,7 +26,7 @@ double timer_reset(Timer *timer) {
 
   secs = (double)(stop.tv_usec - timer->start.tv_usec) / 1000000 +
          (double)(stop.tv_sec - timer->start.tv_sec);
-  per_secs = ((float)timer->counter) / secs;
+  per_secs = (double)timer->counter / secs;
 
   timer->start = stop;
   timer->counter = 0;

src/types.h

@@ -68,7 +68,7 @@ typedef struct Context {
   int width;
   int height;
   double time;
-  int fps;
+  unsigned int fps;
 } Context;
 
 typedef struct Timer {