139 lines
3.5 KiB
C
139 lines
3.5 KiB
C
#include "types.h"
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#include "vip.h"
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#include "video.h"
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/***** Display RAM *****/
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u32* const L_FRAME0 = (u32*)0x00000000; // Left Frame Buffer 0
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u32* const L_FRAME1 = (u32*)0x00008000; // Left Frame Buffer 1
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u32* const R_FRAME0 = (u32*)0x00010000; // Right Frame Buffer 0
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u32* const R_FRAME1 = (u32*)0x00018000; // Right Frame Buffer 1
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u16* const BGMM = (u16*)BGMMBase; // Pointer to BGMM
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u16* const WAM = (u16*)WAMBase; // Pointer to WAM
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u16* const CLMN_TBL = (u16*)0x0003DC00; // Base address of Column Tables
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u16* const OAM = (u16*)OAMBase; // Pointer to OAM
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/* Macro to set the brightness registers */
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#define SET_BRIGHT(a,b,c) VIP_REGS[BRTA]=(u16)(a); VIP_REGS[BRTB]=(u16)(b); VIP_REGS[BRTC]=(u16)(c)
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/* Macro to set the GPLT (BGMap palette) */
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#define SET_GPLT(n,pal) VIP_REGS[GPLT0+n]=pal
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/* Macro to set the JPLT (OBJ palette) */
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#define SET_JPLT(n,pal) VIP_REGS[JPLT0+n]=pal
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/* Delay execution */
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void vbWaitFrame(u16 count)
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{
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u16 i;
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for (i = 0; i <= count; i++) {
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while (!(VIP_REGS[XPSTTS] & XPBSYR));
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while (VIP_REGS[XPSTTS] & XPBSYR);
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}
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}
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/* Turn the display on */
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void vbDisplayOn()
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{
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VIP_REGS[REST] = 0;
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VIP_REGS[XPCTRL] = VIP_REGS[XPSTTS] | XPEN;
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VIP_REGS[DPCTRL] = VIP_REGS[DPSTTS] | (SYNCE | RE | DISP);
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VIP_REGS[FRMCYC] = 0;
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VIP_REGS[INTCLR] = VIP_REGS[INTPND];
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//while (!(VIP_REGS[DPSTTS] & 0x3C)); //required?
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VIP_REGS[BRTA] = 0;
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VIP_REGS[BRTB] = 0;
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VIP_REGS[BRTC] = 0;
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VIP_REGS[GPLT0] = 0xE4; /* Set all eight palettes to: 11100100 */
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VIP_REGS[GPLT1] = 0xE4; /* (i.e. "Normal" dark to light progression.) */
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VIP_REGS[GPLT2] = 0xE4;
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VIP_REGS[GPLT3] = 0xE4;
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VIP_REGS[JPLT0] = 0xE4;
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VIP_REGS[JPLT1] = 0xE4;
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VIP_REGS[JPLT2] = 0xE4;
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VIP_REGS[JPLT3] = 0xE4;
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VIP_REGS[BKCOL] = 0; /* Clear the screen to black before rendering */
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}
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// Turn the display off
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void vbDisplayOff()
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{
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VIP_REGS[REST] = 0;
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VIP_REGS[XPCTRL] = 0;
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VIP_REGS[DPCTRL] = 0;
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VIP_REGS[FRMCYC] = 0;
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VIP_REGS[INTCLR] = VIP_REGS[INTPND];
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}
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// Call this after the display is on and you want the image to show up
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void vbDisplayShow()
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{
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VIP_REGS[BRTA] = 32;
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VIP_REGS[BRTB] = 64;
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VIP_REGS[BRTC] = 32;
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}
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// Call this to hide the image; e.g. while setting things up
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void vbDisplayHide()
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{
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VIP_REGS[BRTA] = 0;
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VIP_REGS[BRTB] = 0;
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VIP_REGS[BRTC] = 0;
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}
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void vbFXFadeIn(u16 wait)
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{
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u8 i;
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for (i = 0; i <= 32; i++) {
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vbWaitFrame(wait);
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SET_BRIGHT(i,i*2,i);
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}
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}
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void vbFXFadeOut(u16 wait)
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{
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s8 i;
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for (i = 32; i >= 0; i--) {
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vbWaitFrame(wait);
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SET_BRIGHT(i,i*2,i);
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}
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}
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u8 const colTable[128] =
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{
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0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
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0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
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0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
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0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
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0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
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0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
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0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
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0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xE0, 0xBC,
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0xA6, 0x96, 0x8A, 0x82, 0x7A, 0x74, 0x6E, 0x6A,
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0x66, 0x62, 0x60, 0x5C, 0x5A, 0x58, 0x56, 0x54,
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0x52, 0x50, 0x50, 0x4E, 0x4C, 0x4C, 0x4A, 0x4A,
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0x48, 0x48, 0x46, 0x46, 0x46, 0x44, 0x44, 0x44,
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0x42, 0x42, 0x42, 0x40, 0x40, 0x40, 0x40, 0x40,
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0x3E, 0x3E, 0x3E, 0x3E, 0x3E, 0x3E, 0x3E, 0x3C,
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0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C,
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0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C
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};
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// Setup the default Column Table
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void vbSetColTable()
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{
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u8 i;
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for (i = 0; i <= 127; i++) {
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CLMN_TBL[i ] = colTable[i];
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CLMN_TBL[i + 256] = colTable[i];
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CLMN_TBL[i + 128] = colTable[127 - i];
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CLMN_TBL[i + 384] = colTable[127 - i];
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}
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} |