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121 lines
3.3 KiB
C
121 lines
3.3 KiB
C
/*---------------------------------------------------------------------------*
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Project: NitroSDK - SPI - demos - pm-1
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File: screen.c
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Copyright 2003-2006 Nintendo. All rights reserved.
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These coded instructions, statements, and computer programs contain
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proprietary information of Nintendo of America Inc. and/or Nintendo
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Company Ltd., and are protected by Federal copyright law. They may
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not be disclosed to third parties or copied or duplicated in any form,
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in whole or in part, without the prior written consent of Nintendo.
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$Log: screen.c,v $
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Revision 1.3 2006/01/18 02:12:28 kitase_hirotake
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do-indent
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Revision 1.2 2005/02/28 05:26:12 yosizaki
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do-indent.
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Revision 1.1 2004/08/07 01:59:51 yada
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modified much
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$NoKeywords: $
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*---------------------------------------------------------------------------*/
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#include <nitro.h>
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#include "screen.h"
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u16 gScreen[32 * 32];
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//u16 gScreen2[ 32 * 32 ];
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// ** these code are refer to rtc sample. thanks.
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/*---------------------------------------------------------------------------*
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Name: ClearScreen
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Description: clear screen buffer
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Arguments: None.
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Returns: None.
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*---------------------------------------------------------------------------*/
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void ClearScreen(void)
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{
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MI_CpuClearFast((void *)gScreen, sizeof(gScreen));
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}
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/*---------------------------------------------------------------------------*
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Name: PrintString
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Description: enter string into screen buffer
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string must be within 32 chars
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Arguments: x : x
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y : y
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palette : color (0-15)
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text : string. end mark is NULL
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Returns: None.
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*---------------------------------------------------------------------------*/
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void PrintString(s16 x, s16 y, u8 palette, char *text, ...)
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{
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va_list vlist;
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char temp[32 + 2], *tempPtr;
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s32 i;
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u16 *p, *pLimit;
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va_start(vlist, text);
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(void)vsnprintf(temp, 33, text, vlist);
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va_end(vlist);
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*(u16 *)(&temp[32]) = 0;
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p = &gScreen[((y * 32) + x) % (32 * 32)];
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pLimit = &gScreen[32 * 32];
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tempPtr = &temp[0];
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for (i = 0; *tempPtr; i++, tempPtr++)
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{
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*p = (u16)((palette << 12) | *tempPtr);
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if (++p >= pLimit)
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{
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p = &gScreen[0];
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}
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}
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}
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/*---------------------------------------------------------------------------*
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Name: ColorString
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Description: change string color which is put in screen buffer
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Arguments: x : x
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y : y
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length : number of characters to change color
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palette : color (0-15)
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Returns: None.
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*---------------------------------------------------------------------------*/
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void ColorString(s16 x, s16 y, s16 length, u8 palette)
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{
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s32 i;
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u16 *p, *pLimit;
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if (length < 0)
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return;
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p = &gScreen[((y * 32) + x) % (32 * 32)];
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pLimit = &gScreen[32 * 32];
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for (i = 0; i < length; i++)
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{
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u16 temp = *p;
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temp &= 0x0fff;
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temp |= (palette << 12);
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*p = temp;
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if (++p >= pLimit)
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{
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p = &gScreen[0];
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}
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}
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}
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