libretro: Refactor reading controller type

Refactor the way the controller type variables are read as we were doing
8 times almost exactly the same thing.

This makes the code more readable and maintainable.

diff --git a/frontend/libretro.c b/frontend/libretro.c
index bdce90e..2e00623 100644 (file)
--- a/frontend/libretro.c
+++ b/frontend/libretro.c
@@ -33,6 +33,8 @@
 #include "3ds/3ds_utils.h"
 #endif
 
+#define PORTS_NUMBER 8
+
 static retro_video_refresh_t video_cb;
 static retro_input_poll_t input_poll_cb;
 static retro_input_state_t input_state_cb;
@@ -375,6 +377,32 @@ unsigned retro_api_version(void)
        return RETRO_API_VERSION;
 }
 
+static void update_controller_port_device(unsigned port)
+{
+       if (port >= PORTS_NUMBER)
+               return;
+
+       static const char **CONTROLLER_VARIABLE = {
+               "pcsx_rearmed_pad1type", "pcsx_rearmed_pad2type",
+               "pcsx_rearmed_pad3type", "pcsx_rearmed_pad4type",
+               "pcsx_rearmed_pad5type", "pcsx_rearmed_pad6type",
+               "pcsx_rearmed_pad7type", "pcsx_rearmed_pad8type",
+       };
+
+       struct retro_variable var;
+
+       var.value = NULL;
+       var.key = "pcsx_rearmed_pad1type";
+       if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
+       {
+               in_type[0] = PSE_PAD_TYPE_STANDARD;
+               if (strcmp(var.value, "analog") == 0)
+                       in_type[0] = PSE_PAD_TYPE_ANALOGPAD;
+               else if (strcmp(var.value, "negcon") == 0)
+                       in_type[0] = PSE_PAD_TYPE_NEGCON;
+       }
+}
+
 void retro_set_controller_port_device(unsigned port, unsigned device)
 {
        SysPrintf("port %u  device %u",port,device);
@@ -1070,93 +1098,8 @@ static void update_variables(bool in_flight)
          Config.PsxType = 1;
    }
 
-   var.value = NULL;
-   var.key = "pcsx_rearmed_pad1type";
-   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
-   {
-      in_type[0] = PSE_PAD_TYPE_STANDARD;
-      if (strcmp(var.value, "analog") == 0)
-         in_type[0] = PSE_PAD_TYPE_ANALOGPAD;
-      else if (strcmp(var.value, "negcon") == 0)
-         in_type[0] = PSE_PAD_TYPE_NEGCON;
-   }
-
-   var.value = NULL;
-   var.key = "pcsx_rearmed_pad2type";
-   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
-   {
-      in_type[1] = PSE_PAD_TYPE_STANDARD;
-      if (strcmp(var.value, "analog") == 0)
-         in_type[1] = PSE_PAD_TYPE_ANALOGPAD;
-      else if (strcmp(var.value, "negcon") == 0)
-         in_type[1] = PSE_PAD_TYPE_NEGCON;
-   }
-
-   var.value = NULL;
-   var.key = "pcsx_rearmed_pad3type";
-   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
-   {
-      in_type[2] = PSE_PAD_TYPE_STANDARD;
-      if (strcmp(var.value, "analog") == 0)
-         in_type[2] = PSE_PAD_TYPE_ANALOGPAD;
-      else if (strcmp(var.value, "negcon") == 0)
-         in_type[2] = PSE_PAD_TYPE_NEGCON;
-   }
-
-   var.value = NULL;
-   var.key = "pcsx_rearmed_pad4type";
-   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
-   {
-      in_type[3] = PSE_PAD_TYPE_STANDARD;
-      if (strcmp(var.value, "analog") == 0)
-         in_type[3] = PSE_PAD_TYPE_ANALOGPAD;
-      else if (strcmp(var.value, "negcon") == 0)
-         in_type[3] = PSE_PAD_TYPE_NEGCON;
-   }
-
-   var.value = NULL;
-   var.key = "pcsx_rearmed_pad5type";
-   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
-   {
-      in_type[4] = PSE_PAD_TYPE_STANDARD;
-      if (strcmp(var.value, "analog") == 0)
-         in_type[4] = PSE_PAD_TYPE_ANALOGPAD;
-      else if (strcmp(var.value, "negcon") == 0)
-         in_type[4] = PSE_PAD_TYPE_NEGCON;
-   }
-
-   var.value = NULL;
-   var.key = "pcsx_rearmed_pad6type";
-   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
-   {
-      in_type[5] = PSE_PAD_TYPE_STANDARD;
-      if (strcmp(var.value, "analog") == 0)
-         in_type[5] = PSE_PAD_TYPE_ANALOGPAD;
-      else if (strcmp(var.value, "negcon") == 0)
-         in_type[5] = PSE_PAD_TYPE_NEGCON;
-   }
-
-   var.value = NULL;
-   var.key = "pcsx_rearmed_pad7type";
-   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
-   {
-      in_type[6] = PSE_PAD_TYPE_STANDARD;
-      if (strcmp(var.value, "analog") == 0)
-         in_type[6] = PSE_PAD_TYPE_ANALOGPAD;
-      else if (strcmp(var.value, "negcon") == 0)
-         in_type[6] = PSE_PAD_TYPE_NEGCON;
-   }
-
-   var.value = NULL;
-   var.key = "pcsx_rearmed_pad8type";
-   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
-   {
-      in_type[7] = PSE_PAD_TYPE_STANDARD;
-      if (strcmp(var.value, "analog") == 0)
-         in_type[7] = PSE_PAD_TYPE_ANALOGPAD;
-      else if (strcmp(var.value, "negcon") == 0)
-         in_type[7] = PSE_PAD_TYPE_NEGCON;
-   }
+   for (int i = 0; i < PORTS_NUMBER; i++)
+      update_controller_port_device(i);
 
    var.value = NULL;
    var.key = "pcsx_rearmed_multitap1";