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took off some macros 

began adding capture
This commit is contained in:
damdoum 2007-01-22 08:38:21 +00:00
parent 0f6cd38709
commit e9f12de6a5
3 changed files with 328 additions and 187 deletions
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273
desmume/src/GPU.c
View File

@ -220,26 +220,29 @@ void GPU_setVideoProp(GPU * gpu, u32 p)
if(cnt->OBJ_Tile_1D)
{
/* 1-d sprite mapping */
/* TODO: better comment (and understanding btw 8S) */
gpu->sprBlock = 5 + cnt->OBJ_Tile_1D_Bound ;
// boundary :
// core A : 32k, 64k, 128k, 256k
// core B : 32k, 64k, 128k, 128k
gpu->sprBoundary = 5 + cnt->OBJ_Tile_1D_Bound ;
if((gpu->core == GPU_SUB) && (cnt->OBJ_Tile_1D_Bound == 3))
{
gpu->sprBlock = 7;
gpu->sprBoundary = 7;
}
gpu->spriteRender = sprite1D;
} else {
/* 2d sprite mapping */
gpu->sprBlock = 5;
// boundary : 32k
gpu->sprBoundary = 5;
gpu->spriteRender = sprite2D;
}
if(cnt->OBJ_BMP_1D_Bound && (gpu->core == GPU_MAIN))
{
gpu->sprBMPBlock = 8;
gpu->sprBMPBoundary = 8;
}
else
{
gpu->sprBMPBlock = 7;
gpu->sprBMPBoundary = 7;
}
gpu->sprEnable = cnt->OBJ_Enable;
@ -806,10 +809,6 @@ INLINE void renderline_textBG(GPU * gpu, u8 num, u8 * DST, u32 Y, u16 XBG, u16 Y
return;
}
if(!gpu->dispCnt.bits.ExBGxPalette_Enable) /* color: no extended palette */
{
yoff = ((YBG&7)<<3);
pal = ARM9Mem.ARM9_VMEM + gpu->core * ADDRESS_STEP_1KB ;
for(x = 0; x < LG;)
{
u8 * mapinfo;
u16 mapinfovalue;
@ -845,7 +844,6 @@ INLINE void renderline_textBG(GPU * gpu, u8 num, u8 * DST, u32 Y, u16 XBG, u16 Y
line++;
}
}
}
return;
}
/* color: extended palette */
@ -896,142 +894,135 @@ INLINE void renderline_textBG(GPU * gpu, u8 num, u8 * DST, u32 Y, u16 XBG, u16 Y
#undef RENDERL
}
INLINE void rotBG2(GPU * gpu, u8 num, u8 * DST, u16 H, s32 X, s32 Y, s16 PA, s16 PB, s16 PC, s16 PD, u16 LG)
// scale rot
void rot_tiled_8bit_entry(GPU * gpu, int num, int auxX, int auxY, int lg, u8 * dst, u8 * map, u8 * tile, u8 * pal) {
u8 palette_entry;
u16 tileindex, x, y, color;
tileindex = map[(auxX + auxY * lg)>>3];
x = (auxX&7); y = (auxY&7);
palette_entry = tile[(tileindex<<6)+(y<<3)+x];
color = T1ReadWord(pal, palette_entry << 1);
if (palette_entry)
renderline_setFinalColor(gpu,0,num,dst, color,auxX,auxY);
}
void rot_tiled_16bit_entry(GPU * gpu, int num, int auxX, int auxY, int lg, u8 * dst, u8 * map, u8 * tile, u8 * pal) {
u8 palette_entry, palette_set;
u16 tileindex, x, y, color;
if (!tile) return;
tileindex = T1ReadWord(map, ((auxX + auxY * lg)>>3) << 1);
palette_set = tileindex >> 12;
tileindex &= 0x3FF;
x = (palette_set & 1) ? 7 - (auxX&7) : (auxX&7);
y = (palette_set & 2) ? 7 - (auxY&7) : (auxY&7);
palette_entry = tile[(tileindex<<6)+(y<<3)+x];
color = T1ReadWord(pal, (palette_entry + (palette_set<<8)) << 1);
if (palette_entry)
renderline_setFinalColor(gpu,0,num,dst, color, auxX, auxY);
}
void rot_256_map(GPU * gpu, int num, int auxX, int auxY, int lg, u8 * dst, u8 * map, u8 * tile, u8 * pal) {
u8 palette_entry;
u16 tileindex, color;
palette_entry = map[auxX + auxY * lg];
color = T1ReadWord(pal, palette_entry << 1);
if(palette_entry)
renderline_setFinalColor(gpu,0,num,dst, color, auxX, auxY);
}
void rot_BMP_map(GPU * gpu, int num, int auxX, int auxY, int lg, u8 * dst, u8 * map, u8 * tile, u8 * pal) {
u16 color;
color = T1ReadWord(map, (auxX + auxY * lg) << 1);
if (color&0x8000)
renderline_setFinalColor(gpu,0,num,dst, color, auxX, auxY);
}
typedef void (*rot_fun)(GPU * gpu, int num, int auxX, int auxY, int lg, u8 * dst, u8 * map, u8 * tile, u8 * pal);
INLINE void apply_rot_fun(GPU * gpu, u8 num, u8 * dst, u16 H, s32 X, s32 Y, s16 PA, s16 PB, s16 PC, s16 PD, u16 LG, rot_fun fun, u8 * map, u8 * tile, u8 * pal)
{
ROTOCOORD x, y;
struct _BGxCNT bgCnt = gpu->bgCnt[num].bits;
s32 x = X + (s32)PB*(s32)H;
s32 y = Y + (s32)PD*(s32)H;
s32 dx = (s32)PA;
s32 dy = (s32)PC;
s32 auxX;
s32 auxY;
s32 lg = gpu->BGSize[num][0];
s32 ht = gpu->BGSize[num][1];
s32 lgmap = (lg>>3);
u32 i, auxX, auxY;
u8 * map = gpu->BG_map_ram[num];
u8 * tile = (u8 *)gpu->BG_tile_ram[num];
u8 * dst = DST;
u8 mapinfo;
u8 coul;
u8 * pal;
u32 i;
if (!map) return;
x.val = X + (s32)PB*(s32)H;
y.val = Y + (s32)PD*(s32)H;
if((!tile)||(!map)) return;
pal = ARM9Mem.ARM9_VMEM + gpu->core * 0x400;
for(i = 0; i < LG; ++i)
{
auxX = x>>8;
auxY = y>>8;
auxX = x.bits.Integer;
auxY = y.bits.Integer;
if(bgCnt.PaletteSet_Wrap)
{
auxX &= (lg-1);
auxY &= (ht-1);
// wrap
auxX = auxX & (lg-1);
auxY = auxY & (ht-1);
}
if ((auxX >= 0) && (auxX < lg) && (auxY >= 0) && (auxY < ht))
{
mapinfo = map[(auxX>>3) + ((auxY>>3) * lgmap)];
coul = tile[mapinfo*64 + ((auxY&7)<<3) + (auxX&7)];
if(coul)
renderline_setFinalColor(gpu,0,num,dst,T1ReadWord(pal, coul << 1),i,X);
}
fun(gpu, num, auxX, auxY, lg, dst, map, tile, pal);
dst += 2;
x += dx;
y += dy;
x.val += dx;
y.val += dy;
}
}
INLINE void extRotBG2(GPU * gpu, u8 num, u8 * DST, u16 H, s32 X, s32 Y, s16 PA, s16 PB, s16 PC, s16 PD, s16 LG)
INLINE void rotBG2(GPU * gpu, u8 num, u8 * dst, u16 H, s32 X, s32 Y, s16 PA, s16 PB, s16 PC, s16 PD, u16 LG) {
u8 * map = gpu->BG_map_ram[num];
u8 * tile = (u8 *)gpu->BG_tile_ram[num];
u8 * pal = ARM9Mem.ARM9_VMEM + gpu->core * 0x400;
// printf("rot mode\n");
apply_rot_fun(gpu, num, dst, H,X,Y,PA,PB,PC,PD,LG, rot_tiled_8bit_entry, map, tile, pal);
}
INLINE void extRotBG2(GPU * gpu, u8 num, u8 * dst, u16 H, s32 X, s32 Y, s16 PA, s16 PB, s16 PC, s16 PD, s16 LG)
{
struct _BGxCNT bgCnt = gpu->bgCnt[num].bits;
s32 x = X + (s32)PB*(s32)H;
s32 y = Y + (s32)PD*(s32)H;
s32 dx = PA;
s32 dy = PC;
s32 auxX;
s32 auxY;
s16 lg = gpu->BGSize[num][0];
s16 ht = gpu->BGSize[num][1];
u16 lgmap = (lg>>3);
u8 * tile = (u8 *)gpu->BG_tile_ram[num];
u8 * dst = DST;
u8 * map;
u16 mapinfo, i;
u8 coul;
u8 *map, *tile, *pal;
u8 affineModeSelection ;
/* see: http://nocash.emubase.de/gbatek.htm#dsvideobgmodescontrol */
affineModeSelection = (bgCnt.Palette_256 << 1) | (bgCnt.CharacBase_Block & 1) ;
// printf("extrot mode %d\n", affineModeSelection);
switch(affineModeSelection)
{
case 0 :
case 1 :
{
u8 * pal = ARM9Mem.ExtPal[gpu->core][gpu->BGExtPalSlot[num]];
if(!pal) return;
#define LOOP(c) \
for(i = 0; i < LG; ++i) { \
auxX = x>>8; auxY = y>>8; \
if(bgCnt.PaletteSet_Wrap) { \
auxX &= (lg-1); auxY &= (ht-1); \
} \
if ((auxX >= 0) && (auxX < lg) && (auxY >= 0) && (auxY < ht)) c \
dst += 2; x += dx; y += dy; \
}
// 16 bit bgmap entries
map = gpu->BG_map_ram[num];
LOOP(
{
u16 x1;
u16 y1;
mapinfo = T1ReadWord(map, ((auxX>>3) + (auxY>>3) * lgmap) << 1);
x1 = (mapinfo & 0x400) ? 7 - (auxX&7) : (auxX&7);
y1 = (mapinfo & 0x800) ? 7 - (auxY&7) : (auxY&7);
coul = tile[(mapinfo&0x3FF)*64 + x1 + (y1<<3)];
if(coul)
renderline_setFinalColor(gpu,0,num,dst, T1ReadWord(pal, (coul + (mapinfo>>12)*0x100) << 1),i,H);
})
}
tile = gpu->BG_tile_ram[num];
pal = ARM9Mem.ExtPal[gpu->core][gpu->BGExtPalSlot[num]];
apply_rot_fun(gpu, num, dst, H,X,Y,PA,PB,PC,PD,LG, rot_tiled_16bit_entry, map, tile, pal);
return;
case 2 :
{
u8 * pal = ARM9Mem.ARM9_VMEM + gpu->core * 0x400;
u8 * map = gpu->BG_bmp_ram[num];
LOOP(
{
mapinfo = map[auxX + auxY * lg];
if(mapinfo)
renderline_setFinalColor(gpu,0,num,dst, T1ReadWord(pal, mapinfo << 1),i,H);
})
}
// 256 colors
map = gpu->BG_bmp_ram[num];
pal = ARM9Mem.ARM9_VMEM + gpu->core * 0x400;
apply_rot_fun(gpu, num, dst, H,X,Y,PA,PB,PC,PD,LG, rot_256_map, map, NULL, pal);
return;
case 3 : /* direct color bitmap */
{
u8 * map = gpu->BG_bmp_ram[num];
LOOP(
{
mapinfo = T1ReadWord(map, (auxX + auxY * lg) << 1);
if ((mapinfo) && (mapinfo & 0x8000))
renderline_setFinalColor(gpu,0,num,dst, mapinfo,i,H);
})
}
case 3 :
// direct colors / BMP
map = gpu->BG_bmp_ram[num];
apply_rot_fun(gpu, num, dst, H,X,Y,PA,PB,PC,PD,LG, rot_BMP_map, map, NULL, NULL);
return;
#undef LOOP
}
}
@ -1112,7 +1103,6 @@ INLINE void render_sprite_BMP (GPU * gpu, u16 l, u8 * dst, u16 * src,
for(i = 0; i < lg; i++, ++sprX, x+=xdir)
{
color = src[x];
//RENDER_COND(color,)
// alpha bit = invisible
RENDER_COND(color&0x8000)
}
@ -1254,7 +1244,7 @@ INLINE void render_sprite_Win (GPU * gpu, u16 l, u8 * src,
void sprite1D(GPU * gpu, u16 l, u8 * dst, u8 * prioTab)
{
_OAM_ * spriteInfo = (_OAM_ *)(gpu->oam + (nbShow-1));// + 127;
u8 block = gpu->sprBlock;
u8 block = gpu->sprBoundary;
u16 i;
for(i = 0; i<nbShow; ++i, --spriteInfo) /* check all sprites */
@ -1268,19 +1258,10 @@ void sprite1D(GPU * gpu, u16 l, u8 * dst, u8 * prioTab)
u8 prio;
u8 * src;
u8 * pal;
u16 i,j;
u16 i,j , rotScaleIndex;
int xdir;
u16 rotScaleA,rotScaleB,rotScaleC,rotScaleD ;
if (spriteInfo->RotScale & 1) {
/* if we need to do rotscale, gather its parameters */
/* http://nocash.emubase.de/gbatek.htm#lcdobjoamrotationscalingparameters */
rotScaleA = T1ReadWord(gpu->oam + spriteInfo->RotScalIndex*0x20 + 0x06,0) ;
rotScaleB = T1ReadWord(gpu->oam + spriteInfo->RotScalIndex*0x20 + 0x0E,0) ;
rotScaleC = T1ReadWord(gpu->oam + spriteInfo->RotScalIndex*0x20 + 0x16,0) ;
rotScaleD = T1ReadWord(gpu->oam + spriteInfo->RotScalIndex*0x20 + 0x1E,0) ;
} ;
// get sprite location and size
sprX = (spriteInfo->X<<23)>>23;
@ -1326,6 +1307,17 @@ void sprite1D(GPU * gpu, u16 l, u8 * dst, u8 * prioTab)
xdir = 1;
}
if (spriteInfo->RotScale & 1) {
// index from 0 to 31
rotScaleIndex = spriteInfo->RotScalIndex + (spriteInfo->HFlip<<1) + (spriteInfo->VFlip << 2);
/* if we need to do rotscale, gather its parameters */
/* http://nocash.emubase.de/gbatek.htm#lcdobjoamrotationscalingparameters */
rotScaleA = T1ReadWord((u8*)(gpu->oam + rotScaleIndex*0x20 + 0x06),0) ;
rotScaleB = T1ReadWord((u8*)(gpu->oam + rotScaleIndex*0x20 + 0x0E),0) ;
rotScaleC = T1ReadWord((u8*)(gpu->oam + rotScaleIndex*0x20 + 0x16),0) ;
rotScaleD = T1ReadWord((u8*)(gpu->oam + rotScaleIndex*0x20 + 0x1E),0) ;
}
#if 1
if (spriteInfo->Mode == 2) {
if (spriteInfo->Depth)
@ -1339,10 +1331,10 @@ void sprite1D(GPU * gpu, u16 l, u8 * dst, u8 * prioTab)
#endif
if (spriteInfo->Mode == 3) /* sprite is in BMP format */
{
/* sprMemory + sprBlock + 16Bytes per line (8pixels a 2 bytes) */
src = (gpu->sprMem) + (spriteInfo->TileIndex<<4) + (y<<gpu->sprBMPBlock);
/* sprMemory + sprBoundary + 16Bytes per line (8pixels a 2 bytes) */
src = (gpu->sprMem) + (spriteInfo->TileIndex<<4) + (y<<gpu->sprBMPBoundary);
render_sprite_BMP (gpu, l, dst, src,
render_sprite_BMP (gpu, l, dst, (u16*)src,
prioTab, prio, lg, sprX, x, xdir);
continue;
@ -1357,7 +1349,7 @@ void sprite1D(GPU * gpu, u16 l, u8 * dst, u8 * prioTab)
else
pal = ARM9Mem.ARM9_VMEM + 0x200 + gpu->core *0x400;
render_sprite_256 (gpu, l, dst, src, pal,
render_sprite_256 (gpu, l, dst, src, (u16*)pal,
prioTab, prio, lg, sprX, x, xdir);
continue;
@ -1392,15 +1384,7 @@ void sprite2D(GPU * gpu, u16 l, u8 * dst, u8 * prioTab)
u16 i, j;
int xdir, block;
u16 rotScaleA,rotScaleB,rotScaleC,rotScaleD ;
if (spriteInfo->RotScale & 1) {
/* if we need to do rotscale, gather its parameters */
/* http://nocash.emubase.de/gbatek.htm#lcdobjoamrotationscalingparameters */
rotScaleA = T1ReadWord(gpu->oam + spriteInfo->RotScalIndex*0x20 + 0x06,0) ;
rotScaleB = T1ReadWord(gpu->oam + spriteInfo->RotScalIndex*0x20 + 0x0E,0) ;
rotScaleC = T1ReadWord(gpu->oam + spriteInfo->RotScalIndex*0x20 + 0x16,0) ;
rotScaleD = T1ReadWord(gpu->oam + spriteInfo->RotScalIndex*0x20 + 0x1E,0) ;
} ;
u16 rotScaleA,rotScaleB,rotScaleC,rotScaleD, rotScaleIndex ;
sprX = (spriteInfo->X<<23)>>23;
sprY = spriteInfo->Y;
@ -1430,6 +1414,18 @@ void sprite2D(GPU * gpu, u16 l, u8 * dst, u8 * prioTab)
y = l - sprY;
prio = spriteInfo->Priority;
if (spriteInfo->RotScale & 1) {
// index from 0 to 31
rotScaleIndex = spriteInfo->RotScalIndex + (spriteInfo->HFlip<<1) + (spriteInfo->VFlip << 2);
/* if we need to do rotscale, gather its parameters */
/* http://nocash.emubase.de/gbatek.htm#lcdobjoamrotationscalingparameters */
rotScaleA = T1ReadWord((u8*)(gpu->oam + rotScaleIndex*0x20 + 0x06),0) ;
rotScaleB = T1ReadWord((u8*)(gpu->oam + rotScaleIndex*0x20 + 0x0E),0) ;
rotScaleC = T1ReadWord((u8*)(gpu->oam + rotScaleIndex*0x20 + 0x16),0) ;
rotScaleD = T1ReadWord((u8*)(gpu->oam + rotScaleIndex*0x20 + 0x1E),0) ;
}
// switch TOP<-->BOTTOM
if (spriteInfo->VFlip)
y = sprSize.y - y -1;
@ -1454,9 +1450,12 @@ void sprite2D(GPU * gpu, u16 l, u8 * dst, u8 * prioTab)
#endif
if (spriteInfo->Mode == 3) /* sprite is in BMP format */
{
if (gpu->dispCnt.bits.OBJ_BMP_2D_dim) // 256*256
src = (gpu->sprMem) + (((spriteInfo->TileIndex&0x3F0) * 64 + (spriteInfo->TileIndex&0x0F) *8 + ( y << 8)) << 1);
else // 128 * 512
src = (gpu->sprMem) + (((spriteInfo->TileIndex&0x3E0) * 64 + (spriteInfo->TileIndex&0x1F) *8 + ( y << 8)) << 1);
render_sprite_BMP (gpu, l, dst, src,
render_sprite_BMP (gpu, l, dst, (u16*)src,
prioTab, prio, lg, sprX, x, xdir);
continue;
@ -1467,7 +1466,7 @@ void sprite2D(GPU * gpu, u16 l, u8 * dst, u8 * prioTab)
src = gpu->sprMem + ((spriteInfo->TileIndex)<<5) + ((y>>3)<<10) + ((y&0x7)*8);
pal = ARM9Mem.ARM9_VMEM + 0x200 + gpu->core *0x400;
render_sprite_256 (gpu, l, dst, src, pal,
render_sprite_256 (gpu, l, dst, src, (u16*)pal,
prioTab, prio, lg, sprX, x, xdir);
continue;

140
desmume/src/GPU.h
View File

@ -59,6 +59,19 @@ extern "C" {
#define ADDRESS_STEP_64kB 0x10000
struct _ROTOCOORD
{
/* 0*/ unsigned Fraction:8;
/* 8*/ unsigned Integer:19;
/*27*/ unsigned Sign:1;
/*28*/ unsigned :4;
};
typedef union
{
struct _ROTOCOORD bits;
u32 val;
} ROTOCOORD;
/*
this structure is for display control,
it holds flags for general display
@ -106,6 +119,30 @@ typedef union
} DISPCNT;
#define BGxENABLED(cnt,num) ((num<8)? ((cnt.val>>8) & num):0)
// source:
// http://nocash.emubase.de/gbatek.htm#dsvideocaptureandmainmemorydisplaymode
struct _DISPCAPCNT
{
/* 0*/ unsigned BlendFactor_A:5; // 0..16 = Blending Factor for Source A
/* 5*/ unsigned :3; //
/* 8*/ unsigned BlendFactor_B:5; // 0..16 = Blending Factor for Source B
/*13*/ unsigned :3; //
/*16*/ unsigned VRAM_Write_Block:2; // 0..3 = VRAM A..D
/*18*/ unsigned VRAM_Write_Offset:2; // n x 0x08000
/*20*/ unsigned Capture_Size:2; // 0=128x128, 1=256x64, 2=256x128, 3=256x192 dots
/*22*/ unsigned :2; //
/*24*/ unsigned Source_A:1; // 0=Graphics Screen BG+3D+OBJ, 1=3D Screen
/*25*/ unsigned Source_B:1; // 0=VRAM, 1=Main Memory Display FIFO
/*26*/ unsigned VRAM_Read_Offset:2; // n x 0x08000
/*28*/ unsigned :1; //
/*29*/ unsigned Capture_Source:2; // 0=Source A, 1=Source B, 2/3=Sources A+B blended
/*31*/ unsigned Capture_Enable:1; // 0=Disable/Ready, 1=Enable/Busy
};
typedef union
{
struct _DISPCAPCNT bits;
u32 val;
} DISPCAPCNT;
/*
@ -180,6 +217,7 @@ struct _BGxCNT
// large : 512x1024 1024x512 - -
};
typedef union
{
struct _BGxCNT bits;
@ -337,6 +375,7 @@ typedef struct _GPU GPU;
struct _GPU
{
DISPCNT dispCnt;
DISPCAPCNT dispCapCnt;
BGxCNT bgCnt[4];
MASTER_BRIGHT masterBright;
BOOL LayersEnable[5];
@ -378,8 +417,8 @@ struct _GPU
OAM * oam;
u8 * sprMem;
u8 sprBlock;
u8 sprBMPBlock;
u8 sprBoundary;
u8 sprBMPBoundary;
u8 sprBMPMode;
u32 sprEnable ;
@ -428,8 +467,13 @@ void Screen_DeInit(void);
extern MMU_struct MMU;
static INLINE void GPU_set_DISPCAPCNT(GPU * gpu, u32 val) {
gpu->dispCapCnt.val = val;
}
static INLINE void GPU_ligne(Screen * screen, u16 l)
{
struct _DISPCAPCNT * capcnt;
GPU * gpu = screen->gpu;
u8 * dst = GPU_screen + (screen->offset + l) * 512;
u8 * mdst = GPU_screen + (MainScreen.offset + l) * 512;
@ -555,6 +599,98 @@ static INLINE void GPU_ligne(Screen * screen, u16 l)
}
}
// FIXME !!!
/* capture */
capcnt = &gpu->dispCapCnt.bits;
if (0 & capcnt->Capture_Enable)
{
u16 * srcA, * srcB, *vram;
u32 c; u8 vram_bank;
COLOR color, colA, colB;
u16 ilast= 128;
if (capcnt->Capture_Size) ilast = 256;
vram = (u16*)(ARM9Mem.ARM9_ABG
+ MMU.vram_mode[capcnt->VRAM_Write_Block] * 0x20000
+ capcnt->VRAM_Write_Offset * 0x08000);
// I dunno yet how to do for 3D
if (!capcnt->Source_A)
srcA = (u16*)dst;
if (!capcnt->Source_B) {
vram_bank = gpu->dispCnt.bits.VRAM_Block ;
if (MMU.vram_mode[vram_bank] & 4) {
srcB = (u16*)(ARM9Mem.ARM9_LCD
+ (MMU.vram_mode[vram_bank] & 3) * 0x20000
+ capcnt->VRAM_Read_Offset * 0x08000);
} else {
srcB = (u16*)(ARM9Mem.ARM9_ABG
+ MMU.vram_mode[vram_bank] * 0x20000
+ capcnt->VRAM_Read_Offset * 0x08000);
}
}
printf("capture source %d\n",capcnt->Capture_Source);
switch(capcnt->Capture_Source) {
case 0: // only source A
if (!capcnt->Source_A) {
srcA = (u16*)dst;
for (i=0; i<ilast; i++) {
vram[i] = srcA[i];
}
}
break;
case 1: // only source B
if (capcnt->Source_B) {
for (i=0; i<ilast;) {
c = FIFOValue(MMU.fifos + MAIN_MEMORY_DISP_FIFO);
vram[i] = c&0xFFFF; i++;
vram[i] = c>>16; i++;
}
} else {
for (i=0; i<ilast; i++) {
vram[i] = srcB[i];
}
}
break;
default: // blend A + B
if (capcnt->Source_B) {
for (i=0; i<ilast;) {
c = FIFOValue(MMU.fifos + MAIN_MEMORY_DISP_FIFO);
colA.val = c&0xFFFF;
colB.val = srcB[i];
#define FORMULA(field) \
color.bits.field = ((colA.bits.field * colA.bits.alpha * capcnt->BlendFactor_A) + (colB.bits.field * colB.bits.alpha * capcnt->BlendFactor_B)) / 16;
FORMULA(red)
FORMULA(green)
FORMULA(blue)
vram[i] = color.val;
i++;
colA.val = c >> 16;
colB.val = srcB[i];
FORMULA(red)
FORMULA(green)
FORMULA(blue)
vram[i] = color.val;
i++;
}
} else {
for (i=0; i<ilast; i++) {
colA.val = srcA[i];
colB.val = srcB[i];
FORMULA(red)
FORMULA(green)
FORMULA(blue)
vram[i] = color.val;
}
#undef FORMULA
}
break;
}
}
/* end of capture */
// Apply final brightness adjust (MASTER_BRIGHT)
// Reference: http://nocash.emubase.de/gbatek.htm#dsvideo (Under MASTER_BRIGHTNESS)

6
desmume/src/MMU.c
View File

@ -1700,6 +1700,12 @@ void FASTCALL MMU_write16(u32 proc, u32 adr, u16 val)
T1WriteLong(MMU.MMU_MEM[proc][0x40], 0, v);
}
return;
case REG_DISPA_DISPCAPCNT :
if(proc == ARMCPU_ARM9)
{
GPU_set_DISPCAPCNT(MainScreen.gpu,val);
}
return;
case REG_DISPB_DISPCNT+2 :
if(proc == ARMCPU_ARM9)
{