first commit

basic-setup/components/u8g2/sys/sdl/devanagari/Makefile

@@ -0,0 +1,12 @@
+CFLAGS = -g -Wall -I../../../csrc/.  `sdl2-config --cflags`
+
+SRC = $(shell ls ../../../csrc/*.c) $(shell ls ../common/*.c ) main.c 
+
+OBJ = $(SRC:.c=.o)
+
+helloworld: $(OBJ) 
+	$(CC) $(CFLAGS) $(LDFLAGS) $(OBJ) `sdl2-config --libs` -o u8g2_sdl
+
+clean:	
+	-rm $(OBJ) u8g2_sdl
+

basic-setup/components/u8g2/sys/sdl/devanagari/main.c

@@ -0,0 +1,148 @@
+
+#include "u8g2.h"
+#include <stdio.h>
+
+u8g2_t u8g2;
+
+/*
+  draw unicode for https://en.wikipedia.org/wiki/Devanagari
+  Adjust the glyph position as good as possible for the unicode font.
+
+  Report missing or wrong glyph adjustments here:
+  https://github.com/olikraus/u8g2/issues/584
+  
+  precondition: 
+    u8g2_SetFont(&u8g2, u8g2_font_unifont_t_devanagari);
+    u8g2_SetFontMode(&u8g2, 1);
+    Font direction command is NOT supported
+*/
+u8g2_uint_t u8g2_draw_unifont_devanagari(u8g2_t *u8g2, u8g2_uint_t x, u8g2_uint_t y, const char *str)
+{
+  uint16_t e;
+  u8g2_uint_t delta, sum;
+  u8g2->u8x8.next_cb = u8x8_utf8_next;
+  u8x8_utf8_init(u8g2_GetU8x8(u8g2));
+  sum = 0;
+  for(;;)
+  {
+    e = u8g2->u8x8.next_cb(u8g2_GetU8x8(u8g2), (uint8_t)*str);
+    if ( e == 0x0ffff )
+      break;
+    str++;
+    if ( e != 0x0fffe )
+    {
+      
+      switch(e)
+      {
+	case 0x093e: x-= 12; break;
+	case 0x093f: x-= 19; break;
+	case 0x0941: x-= 14; break;
+	case 0x0947: x-= 12; break;
+	case 0x094d: x-= 10; break;
+      }
+      delta = u8g2_DrawGlyph(u8g2, x, y, e);    
+      switch(e)
+      {
+	case 0x094d: x-= 8; break;
+      }
+      
+      x += delta;
+      sum += delta;    
+    }
+  }
+  return sum;
+}
+
+
+int main(void)
+{
+  int x, y, o;
+  int k;
+  int i;
+  
+  u8g2_SetupBuffer_SDL_128x64_4(&u8g2, &u8g2_cb_r0);
+  u8x8_InitDisplay(u8g2_GetU8x8(&u8g2));
+  u8x8_SetPowerSave(u8g2_GetU8x8(&u8g2), 0);  
+  //u8g2_SetFont(&u8g2, u8g2_font_helvB18_tr);
+  u8g2_SetFont(&u8g2, u8g2_font_unifont_t_devanagari);
+  u8g2_SetFontMode(&u8g2, 1);
+  
+  x = 50;
+  y = 30;
+  o = 0;
+
+  
+  for(;;)
+  {
+#ifdef U8G2_WITH_HVLINE_COUNT
+    u8g2.hv_cnt = 0UL;
+#endif /* U8G2_WITH_HVLINE_COUNT */   
+    
+    
+    u8g2_FirstPage(&u8g2);
+    i = 0;
+    do
+    {
+      u8g2_SetFontDirection(&u8g2, 0); 
+      
+      /* अविनाश */
+      /* &#x0905;&#x0935;&#x093F;&#x0928;&#x093E;&#x0936; */
+      /*
+      o = 0;
+      o += u8g2_DrawGlyph(&u8g2, x+o, y, 0x0905);
+      o += u8g2_DrawGlyph(&u8g2, x+o, y, 0x0935);
+      o -=19;	// offset 19 for 0x093F S
+      o += u8g2_DrawGlyph(&u8g2, x+o, y, 0x093F);
+      o += u8g2_DrawGlyph(&u8g2, x+o, y, 0x0928);
+      o -=12;	// offset 19 for 0x093e 
+      o += u8g2_DrawGlyph(&u8g2, x+o, y, 0x093e);
+      o += u8g2_DrawGlyph(&u8g2, x+o, y, 0x0936);
+      */
+      
+      
+      //u8g2_draw_devanagari(&u8g2, x, y+16, "अविनाश");
+      
+      /* नमस्ते दुनिया Hello World */
+      /*
+	&#x0928;&#x092E;&#x0938;&#x094D;&#x0924;&#x0947; 
+	&#x0926;&#x0941;&#x0928;&#x093F;&#x092F;&#x093E;
+      */
+      u8g2_draw_unifont_devanagari(&u8g2, x, y+16, "नमस्ते दुनिया");
+      
+      i++;
+      
+
+    } while( u8g2_NextPage(&u8g2) );
+#ifdef U8G2_WITH_HVLINE_COUNT
+    printf("hv cnt: %ld\n", u8g2.hv_cnt);
+#endif /* U8G2_WITH_HVLINE_COUNT */   
+    
+    do
+    {
+      k = u8g_sdl_get_key();
+    } while( k < 0 );
+    
+    if ( k == 273 ) y -= 7;
+    if ( k == 274 ) y += 7;
+    if ( k == 276 ) x -= 7;
+    if ( k == 275 ) x += 7;
+    
+    if ( k == 'e' ) y -= 1;
+    if ( k == 'x' ) y += 1;
+    if ( k == 's' ) x -= 1;
+    if ( k == 'd' ) x += 1;
+    if ( k == 'q' ) break;
+    
+  }
+  
+  //u8x8_Set8x8Font(u8g2_GetU8x8(&u8g2), bdf_font);
+  //u8x8_Draw8x8String(u8g2_GetU8x8(&u8g2), 0, 0, "Hello World!");
+  
+  
+  
+  
+  
+  
+  return 0;
+}
+