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added WINDOW_x registers to prepare window clipping

This commit is contained in:
mightymax 2007-01-09 10:18:17 +00:00
parent 07a8b0f032
commit 87de52a0f8
2 changed files with 55 additions and 3 deletions
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24
desmume/src/GPU.c
View File

@ -557,6 +557,26 @@ void GPU_setMOSAIC(GPU *gpu, u16 v)
gpu->MOSAIC = v ;
}
void GPU_setWINDOW_XDIM(GPU *gpu, u16 v, u8 num)
{
gpu->WINDOW_XDIM[num] = v ;
}
void GPU_setWINDOW_YDIM(GPU *gpu, u16 v, u8 num)
{
gpu->WINDOW_YDIM[num] = v ;
}
void GPU_setWINDOW_INCNT(GPU *gpu, u16 v)
{
gpu->WINDOW_INCNT.val = v ;
}
void GPU_setWINDOW_OUTCNT(GPU *gpu, u16 v)
{
gpu->WINDOW_OUTCNT.val = v ;
}
#ifndef min
#define min(a,b) (((a)<(b))?(a):(b))
#endif
@ -702,7 +722,7 @@ INLINE void renderline_textBG(GPU * gpu, u8 num, u8 * DST, u16 X, u16 Y, u16 LG)
line += 3 - ((xoff&7)>>1);
for(; x < xfin; ) {
// XXX
if ((pt % mw) == 0) { /* only update the color we draw every n mw pixels */
if ((pt % mw) == 0) { /* only update the color we draw every mw pixels */
if (pt & 1) {
save = (*line) & 0xF ;
} else {
@ -725,7 +745,7 @@ INLINE void renderline_textBG(GPU * gpu, u8 num, u8 * DST, u16 X, u16 Y, u16 LG)
u8 pt = 0 ;
u8 save = 0;
line += ((xoff&7)>>1);
for(; x < xfin; ) {
// XXX
if (!(pt % mw)) { /* only update the color we draw every n mw pixels */

34
desmume/src/GPU.h
View File

@ -121,6 +121,28 @@ typedef struct
unsigned attr3:16;
} _OAM_;
typedef union windowcnt_t
{
struct
{
/* 0*/ unsigned WIN0_BG0_Enable:1;
/* 1*/ unsigned WIN0_BG1_Enable:1;
/* 2*/ unsigned WIN0_BG2_Enable:1;
/* 3*/ unsigned WIN0_BG3_Enable:1;
/* 4*/ unsigned WIN0_OBJ_Enabble:1;
/* 5*/ unsigned WIN0_Effect_Enable:1;
/* 6*/ unsigned :2;
/* 8*/ unsigned WIN1_BG0_Enable:1;
/* 9*/ unsigned WIN1_BG1_Enable:1;
/*10*/ unsigned WIN1_BG2_Enable:1;
/*11*/ unsigned WIN1_BG3_Enable:1;
/*12*/ unsigned WIN1_OBJ_Enabble:1;
/*13*/ unsigned WIN1_Effect_Enable:1;
/*14*/ unsigned :2;
} bitfield ;
unsigned short val ;
} windowcnt_t ;
typedef struct
{
u16 attr0;
@ -185,7 +207,12 @@ struct _GPU
u16 BLDALPHA ;
u16 BLDY ;
u16 MOSAIC ;
u16 WINDOW_XDIM[2] ;
u16 WINDOW_YDIM[2] ;
windowcnt_t WINDOW_INCNT ;
windowcnt_t WINDOW_OUTCNT ;
void (*spriteRender)(GPU * gpu, u16 l, u8 * dst, u8 * prioTab);
};
@ -328,6 +355,11 @@ void GPU_setBLDALPHA(GPU *gpu, u16 v) ;
void GPU_setBLDY(GPU *gpu, u16 v) ;
void GPU_setMOSAIC(GPU *gpu, u16 v) ;
void GPU_setWINDOW_XDIM(GPU *gpu, u16 v, u8 num) ;
void GPU_setWINDOW_YDIM(GPU *gpu, u16 v, u8 num) ;
void GPU_setWINDOW_INCNT(GPU *gpu, u16 v) ;
void GPU_setWINDOW_INCNT(GPU *gpu, u16 v) ;
void GPU_remove(GPU *, u8 num);
void GPU_addBack(GPU *, u8 num);