1 /*---------------------------------------------------------------------------*
2 Project: TwlSDK - demos - os - reset-1
3 File: font.c
4
5 Copyright 2003-2008 Nintendo. All rights reserved.
6
7 These coded instructions, statements, and computer programs contain
8 proprietary information of Nintendo of America Inc. and/or Nintendo
9 Company Ltd., and are protected by Federal copyright law. They may
10 not be disclosed to third parties or copied or duplicated in any form,
11 in whole or in part, without the prior written consent of Nintendo.
12
13 $Date:: 2008-09-18#$
14 $Rev: 8573 $
15 $Author: okubata_ryoma $
16 *---------------------------------------------------------------------------*/
17 #ifdef SDK_TWL
18 #include <twl.h>
19 #else
20 #include <nitro.h>
21 #endif
22 #include "screen.h"
23
24 u16 gScreen[32 * 32];
25
26 // ** these code are refer to rtc sample. thanks.
27 /*---------------------------------------------------------------------------*
28 Name: ClearScreen
29
30 Description: clear screen buffer
31
32 Arguments: None.
33
34 Returns: None.
35 *---------------------------------------------------------------------------*/
ClearScreen(void)36 void ClearScreen(void)
37 {
38 MI_CpuClearFast((void *)gScreen, sizeof(gScreen));
39 }
40
41 /*---------------------------------------------------------------------------*
42 Name: PrintString
43
44 Description: enter string into screen buffer
45 string must be within 32 chars
46
47 Arguments: x : x
48 y : y
49 palette : color (0-15)
50 text : string. end mark is NULL
51
52 Returns: None.
53 *---------------------------------------------------------------------------*/
PrintString(s16 x,s16 y,u8 palette,char * text,...)54 void PrintString(s16 x, s16 y, u8 palette, char *text, ...)
55 {
56 va_list vlist;
57 char temp[32 + 2], *tempPtr;
58 s32 i;
59 u16 *p, *pLimit;
60
61 va_start(vlist, text);
62 (void)vsnprintf(temp, 33, text, vlist);
63 va_end(vlist);
64
65 *(u16 *)(&temp[32]) = 0;
66 p = &gScreen[((y * 32) + x) % (32 * 32)];
67 pLimit = &gScreen[32 * 32];
68 tempPtr = &temp[0];
69
70 for (i = 0; *tempPtr; i++, tempPtr++)
71 {
72 *p = (u16)((palette << 12) | *tempPtr);
73 if (++p >= pLimit)
74 {
75 p = &gScreen[0];
76 }
77 }
78 }
79
80 /*---------------------------------------------------------------------------*
81 Name: ColorString
82
83 Description: change string color which is put in screen buffer
84
85 Arguments: x : x
86 y : y
87 length : number of characters to change color
88 palette : color (0-15)
89
90 Returns: None.
91 *---------------------------------------------------------------------------*/
ColorString(s16 x,s16 y,s16 length,u8 palette)92 void ColorString(s16 x, s16 y, s16 length, u8 palette)
93 {
94 s32 i;
95 u16 *p, *pLimit;
96
97 if (length < 0)
98 return;
99
100 p = &gScreen[((y * 32) + x) % (32 * 32)];
101 pLimit = &gScreen[32 * 32];
102
103 for (i = 0; i < length; i++)
104 {
105 u16 temp = *p;
106 temp &= 0x0fff;
107 temp |= (palette << 12);
108 *p = temp;
109
110 if (++p >= pLimit)
111 {
112 p = &gScreen[0];
113 }
114 }
115 }
116