From 1609a6d1150217fccb166d7757745c7dd97e394a Mon Sep 17 00:00:00 2001
From: Not6 <r-type@gmail.com>
Date: Sun, 15 Oct 2017 19:20:18 +0200
Subject: [PATCH] add keyboard typecore option (input poll or input callback)

---
 libretro/core-mapper.c   |  4 ++++
 libretro/libretro-core.c | 25 +++++++++++++++++++++++--
 2 files changed, 27 insertions(+), 2 deletions(-)

diff --git a/libretro/core-mapper.c b/libretro/core-mapper.c
index d0bf8d9..9a6f002 100644
--- a/libretro/core-mapper.c
+++ b/libretro/core-mapper.c
@@ -72,6 +72,8 @@ unsigned char MXjoy[2]; // joy
 
 extern int a5200_joyhack;
 
+extern int keyboard_type;
+
 //MOUSE
 extern int pushi;  // gui mouse btn
 int gmx,gmy; //gui mouse
@@ -372,6 +374,8 @@ void Process_key()
 {
 	int i;
 
+	if(keyboard_type==1)return;
+
 	for(i=0;i<320;i++)
         	Key_Sate[i]=input_state_cb(0, RETRO_DEVICE_KEYBOARD, 0,i) ? 0x80: 0;
    
diff --git a/libretro/libretro-core.c b/libretro/libretro-core.c
index f5dfe45..96d9aa3 100644
--- a/libretro/libretro-core.c
+++ b/libretro/libretro-core.c
@@ -22,6 +22,7 @@ int retroh=300;
 
 unsigned atari_devices[ 2 ];
 
+int keyboard_type=0;
 int autorun5200=0;
 int a5200_joyhack=0;
 
@@ -118,7 +119,10 @@ void retro_set_environment(retro_environment_t cb)
          "atari800_resolution",
          "Internal resolution; 336x240|320x240|384x240|384x272|384x288|400x300",
       },
-  
+     {
+       "atari800_keyboard",
+       "Retroarch Keyboard type; poll|callback",
+     },
 
       { NULL, NULL },
    };
@@ -328,6 +332,20 @@ static void update_variables(void)
 	 }
      }
    
+   var.key = "atari800_keyboard";
+   var.value = NULL;
+
+   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
+     {
+       if (strcmp(var.value, "poll") == 0)
+	 {
+		keyboard_type=0;
+	 }
+       else if (strcmp(var.value, "callback") == 0)
+	 {
+		keyboard_type=1;
+	 }
+     }
 }
 
 static void retro_wrap_emulator()
@@ -622,11 +640,14 @@ void retro_run(void)
 
    co_switch(emuThread);
 }
-
+extern char Key_Sate[512];
 unsigned int lastdown,lastup,lastchar;
 static void keyboard_cb(bool down, unsigned keycode,
       uint32_t character, uint16_t mod)
 {
+	if(keyboard_type==0)return;
+	Key_Sate[keycode]= down ? 1 : 0;
+
 /*
   printf( "Down: %s, Code: %d, Char: %u, Mod: %u.\n",
          down ? "yes" : "no", keycode, character, mod);