Reduce size of variables

audio/audio_driver.c

@@ -187,7 +187,8 @@ static void *audio_driver_context_audio_data             = NULL;
  **/
 static void compute_audio_buffer_statistics(void)
 {
-   unsigned i, low_water_size, high_water_size, avg, stddev;
+   uint8_t i;
+   unsigned low_water_size, high_water_size, avg, stddev;
    float avg_filled              = 0.0f;
    float deviation               = 0.0f;
    uint64_t accum                = 0;
@@ -810,7 +811,7 @@ void audio_driver_monitor_adjust_system_rates(void)
 
 void audio_driver_setup_rewind(void)
 {
-   unsigned i;
+   uint8_t i;
 
    /* Push audio ready to be played. */
    audio_driver_rewind_ptr = audio_driver_rewind_size;
@@ -844,7 +845,7 @@ bool audio_driver_find_driver(void)
       current_audio = (const audio_driver_t*)audio_driver_find_handle(i);
    else
    {
-      unsigned d;
+      uint8_t d;
       RARCH_ERR("Couldn't find any audio driver named \"%s\"\n",
             settings->arrays.audio_driver);
       RARCH_LOG_OUTPUT("Available audio drivers are:\n");
@@ -909,7 +910,7 @@ bool audio_driver_get_devices_list(void **data)
 bool audio_driver_mixer_extension_supported(const char *ext)
 {
    union string_list_elem_attr attr;
-   unsigned i;
+   uint8_t i;
    bool ret                      = false;
    struct string_list *str_list  = string_list_new();
 
@@ -942,7 +943,7 @@ bool audio_driver_mixer_extension_supported(const char *ext)
 
 static int audio_mixer_find_index(audio_mixer_sound_t *sound)
 {
-   unsigned i;
+   uint8_t i;
 
    for (i = 0; i < AUDIO_MIXER_MAX_STREAMS; i++)
    {
@@ -1091,7 +1092,7 @@ static void audio_driver_mixer_remove_stream(unsigned i)
 
 static void audio_driver_mixer_deinit(void)
 {
-   unsigned i;
+   uint8_t i;
 
    audio_set_bool(AUDIO_ACTION_MIXER, false);
 

driver.c

@@ -145,7 +145,7 @@ static const void *find_driver_nonempty(const char *label, int i,
  **/
 static int driver_find_index(const char * label, const char *drv)
 {
-   unsigned i;
+   uint8_t i;
    char str[256];
 
    str[0] = '\0';
@@ -178,7 +178,7 @@ static bool driver_find_first(const char *label, char *s, size_t len)
  **/
 static bool driver_find_last(const char *label, char *s, size_t len)
 {
-   unsigned i;
+   uint8_t i;
 
    for (i = 0;
          find_driver_nonempty(label, i, s, len) != NULL; i++)
@@ -290,9 +290,11 @@ void driver_set_nonblock_state(void)
  *
  * Returns: true (1) if successful, otherwise false (0).
  **/
-static bool driver_update_system_av_info(const struct retro_system_av_info *info)
+static bool driver_update_system_av_info(
+      const struct retro_system_av_info *info)
 {
-   struct retro_system_av_info *av_info    = video_viewport_get_system_av_info();
+   struct retro_system_av_info *av_info    = 
+      video_viewport_get_system_av_info();
 
    memcpy(av_info, info, sizeof(*av_info));
    command_event(CMD_EVENT_REINIT, NULL);
@@ -302,7 +304,8 @@ static bool driver_update_system_av_info(const struct retro_system_av_info *info
    if (recording_driver_get_data_ptr())
    {
       runloop_msg_queue_push(
-            msg_hash_to_str(MSG_RESTARTING_RECORDING_DUE_TO_DRIVER_REINIT),
+            msg_hash_to_str(
+               MSG_RESTARTING_RECORDING_DUE_TO_DRIVER_REINIT),
             2, 180, false);
       command_event(CMD_EVENT_RECORD_DEINIT, NULL);
       command_event(CMD_EVENT_RECORD_INIT, NULL);
@@ -365,11 +368,13 @@ void drivers_init(int flags)
    }
 
    /* Only initialize camera driver if we're ever going to use it. */
-   if ((flags & DRIVER_CAMERA_MASK) && camera_driver_ctl(RARCH_CAMERA_CTL_IS_ACTIVE, NULL))
+   if ((flags & DRIVER_CAMERA_MASK) && 
+         camera_driver_ctl(RARCH_CAMERA_CTL_IS_ACTIVE, NULL))
       camera_driver_ctl(RARCH_CAMERA_CTL_INIT, NULL);
 
    /* Only initialize location driver if we're ever going to use it. */
-   if ((flags & DRIVER_LOCATION_MASK) && location_driver_ctl(RARCH_LOCATION_CTL_IS_ACTIVE, NULL))
+   if ((flags & DRIVER_LOCATION_MASK) && 
+         location_driver_ctl(RARCH_LOCATION_CTL_IS_ACTIVE, NULL))
       init_location();
 
    core_info_init_current_core();
@@ -402,7 +407,8 @@ void drivers_init(int flags)
  **/
 
 /**
- * Driver ownership - set this to true if the platform in question needs to 'own' 
+ * Driver ownership - set this to true if the platform in 
+ * question needs to 'own' 
  * the respective handle and therefore skip regular RetroArch 
  * driver teardown/reiniting procedure.
  *
@@ -425,13 +431,16 @@ void driver_uninit(int flags)
       menu_driver_ctl(RARCH_MENU_CTL_DEINIT, NULL);
 #endif
 
-   if ((flags & DRIVER_LOCATION_MASK) && !location_driver_ctl(RARCH_LOCATION_CTL_OWNS_DRIVER, NULL))
+   if ((flags & DRIVER_LOCATION_MASK) && 
+         !location_driver_ctl(RARCH_LOCATION_CTL_OWNS_DRIVER, NULL))
       location_driver_ctl(RARCH_LOCATION_CTL_DEINIT, NULL);
 
-   if ((flags & DRIVER_CAMERA_MASK) && !camera_driver_ctl(RARCH_CAMERA_CTL_OWNS_DRIVER, NULL))
+   if ((flags & DRIVER_CAMERA_MASK) && 
+         !camera_driver_ctl(RARCH_CAMERA_CTL_OWNS_DRIVER, NULL))
       camera_driver_ctl(RARCH_CAMERA_CTL_DEINIT, NULL);
 
-   if ((flags & DRIVER_WIFI_MASK) && !wifi_driver_ctl(RARCH_WIFI_CTL_OWNS_DRIVER, NULL))
+   if ((flags & DRIVER_WIFI_MASK) && 
+         !wifi_driver_ctl(RARCH_WIFI_CTL_OWNS_DRIVER, NULL))
       wifi_driver_ctl(RARCH_WIFI_CTL_DEINIT, NULL);
 
    if (flags & DRIVERS_VIDEO_INPUT)
@@ -487,7 +496,8 @@ bool driver_ctl(enum driver_ctl_state state, void *data)
          break;
       case RARCH_DRIVER_CTL_UPDATE_SYSTEM_AV_INFO:
          {
-            const struct retro_system_av_info **info = (const struct retro_system_av_info**)data;
+            const struct retro_system_av_info **info 
+               = (const struct retro_system_av_info**)data;
             if (info)
                return driver_update_system_av_info(*info);
          }

gfx/drivers/gl.c

@@ -219,7 +219,7 @@ static void gl_overlay_tex_geom(void *data,
 static void gl_render_overlay(gl_t *gl, video_frame_info_t *video_info)
 {
    video_shader_ctx_coords_t coords;
-   unsigned i;
+   uint8_t i;
    unsigned width                      = video_info->width;
    unsigned height                     = video_info->height;
 
@@ -563,7 +563,7 @@ static void gl_update_input_size(gl_t *gl, unsigned width,
 
 static void gl_init_textures_data(gl_t *gl)
 {
-   unsigned i;
+   uint8_t i;
 
    for (i = 0; i < gl->textures; i++)
    {
@@ -610,7 +610,7 @@ static void gl_init_textures_reference(gl_t *gl, unsigned i,
 
 static void gl_init_textures(gl_t *gl, const video_info_t *video)
 {
-   unsigned i;
+   uint8_t i;
    GLenum internal_fmt, texture_type = 0, texture_fmt = 0;
 
    (void)texture_type;
@@ -682,8 +682,7 @@ static INLINE void gl_copy_frame(gl_t *gl,
       size_t buffer_stride      = gl->tex_w * gl->base_size;
       const uint8_t *frame_copy = frame;
       size_t frame_copy_size    = width * gl->base_size;
-
+      uint8_t *buffer           = (uint8_t*)glMapBuffer(
-      uint8_t *buffer = (uint8_t*)glMapBuffer(
             GL_TEXTURE_REFERENCE_BUFFER_SCE, GL_READ_WRITE) + buffer_addr;
       for (h = 0; h < height; h++, buffer += buffer_stride, frame_copy += pitch)
          memcpy(buffer, frame_copy, frame_copy_size);
@@ -706,7 +705,8 @@ static INLINE void gl_copy_frame(gl_t *gl,
       img_info.rgb32  = (gl->base_size == 4);
       img_info.handle = &img;
 
-      new_egl = video_context_driver_write_to_image_buffer(&img_info);
+      new_egl         = 
+         video_context_driver_write_to_image_buffer(&img_info);
 
       if (img == EGL_NO_IMAGE_KHR)
       {
@@ -1036,7 +1036,8 @@ static INLINE void gl_draw_texture(gl_t *gl, video_frame_info_t *video_info)
 
    video_shader_driver_set_coords(coords);
 
-   video_info->cb_shader_set_mvp(gl, video_info->shader_data, &gl->mvp_no_rot);
+   video_info->cb_shader_set_mvp(gl,
+         video_info->shader_data, &gl->mvp_no_rot);
 
    glEnable(GL_BLEND);
 
@@ -1108,7 +1109,8 @@ static bool gl_frame(void *data, const void *frame,
       mode.width        = width;
       mode.height       = height;
 
-      video_info->cb_set_resize(video_info->context_data, mode.width, mode.height);
+      video_info->cb_set_resize(video_info->context_data,
+            mode.width, mode.height);
 
 #ifdef HAVE_FBO
       if (gl->fbo_inited)
@@ -1136,8 +1138,10 @@ static bool gl_frame(void *data, const void *frame,
       if (!gl->hw_render_fbo_init)
 #endif
       {
-         gl_update_input_size(gl, frame_width, frame_height, pitch, true);
+         gl_update_input_size(gl, frame_width,
-         gl_copy_frame(gl, video_info, frame, frame_width, frame_height, pitch);
+               frame_height, pitch, true);
+         gl_copy_frame(gl, video_info, frame,
+               frame_width, frame_height, pitch);
       }
 
       /* No point regenerating mipmaps
@@ -1184,7 +1188,8 @@ static bool gl_frame(void *data, const void *frame,
 #ifdef HAVE_FBO
    if (gl->fbo_feedback_enable)
    {
-      const struct video_fbo_rect *rect = &gl->fbo_rect[gl->fbo_feedback_pass];
+      const struct video_fbo_rect 
+         *rect                        = &gl->fbo_rect[gl->fbo_feedback_pass];
       GLfloat xamt                    = (GLfloat)rect->img_width / rect->width;
       GLfloat yamt                    = (GLfloat)rect->img_height / rect->height;
 
@@ -1361,7 +1366,7 @@ static void gl_free(void *data)
 #ifdef HAVE_GL_SYNC
    if (gl->have_sync)
    {
-      unsigned i;
+      uint8_t i;
 
       for (i = 0; i < gl->fence_count; i++)
       {
@@ -1576,7 +1581,7 @@ static INLINE void gl_set_texture_fmts(gl_t *gl, bool rgb32)
 #ifdef HAVE_GL_ASYNC_READBACK
 static void gl_init_pbo_readback(gl_t *gl)
 {
-   unsigned i;
+   uint8_t i;
    settings_t *settings      = config_get_ptr();
    bool *recording_enabled   = recording_is_enabled();
 #ifndef HAVE_OPENGLES3

gfx/video_driver.c

@@ -1278,7 +1278,7 @@ void video_monitor_set_refresh_rate(float hz)
 bool video_monitor_fps_statistics(double *refresh_rate,
       double *deviation, unsigned *sample_points)
 {
-   unsigned i;
+   uint8_t i;
    retro_time_t accum   = 0, avg, accum_var = 0;
    unsigned samples      = MIN(MEASURE_FRAME_TIME_SAMPLES_COUNT,
          (unsigned)video_driver_frame_time_count);

retroarch.c

@@ -281,12 +281,12 @@ static void retroarch_msg_queue_init(void)
 
 static void retroarch_override_setting_free_state(void)
 {
-   unsigned i;
+   uint8_t i;
    for (i = 0; i < RARCH_OVERRIDE_SETTING_LAST; i++)
    {
       if (i == RARCH_OVERRIDE_SETTING_LIBRETRO_DEVICE)
       {
-         unsigned j;
+         uint8_t j;
          for (j = 0; j < MAX_USERS; j++)
             retroarch_override_setting_unset((enum rarch_override_setting)(i), &j);
       }
@@ -1476,7 +1476,7 @@ bool rarch_ctl(enum rarch_ctl_state state, void *data)
 #endif
          retroarch_init_state();
          {
-            unsigned i;
+            uint8_t i;
             for (i = 0; i < MAX_USERS; i++)
                input_config_set_device(i, RETRO_DEVICE_JOYPAD);
          }