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#include "port.h"
#include "snes9x.h"
#include "memmap.h"
#include "ppu.h"
#include "cpuexec.h"
#include "display.h"
#include "gfx.h"
#include "apu.h"
extern SLineData LineData[240];
extern SLineMatrixData LineMatrixData [240];
extern uint8 Mode7Depths [2];
#define M7 19
#define M7C 0x1fff
#define MACRO_CONCAT(a,b) a##b
#define DEC_FMODE7(n) MACRO_CONCAT(void DrawBGMode7Background16, n)(uint8 *Screen, int bg, int depth)
static void DrawBGMode7Background16R3(uint8* Screen, int bg, int depth)
{
int aa, cc;
int startx;
uint32 Left = 0;
uint32 Right = 256;
uint32 ClipCount = GFX.pCurrentClip->Count [0];
int32 HOffset;
int32 VOffset;
int32 CentreX;
int32 CentreY;
//uint8 *d;
//uint16 *p;
//int dir;
int yy;
int yy3;
int xx3;
int xx;
int BB;
int DD;
uint32 Line;
uint32 clip;
//uint8 b;
uint8* Depth;
unsigned int fixedColour = GFX.FixedColour;
//int x, AA, CC, xx3;
if (!ClipCount) ClipCount = 1;
Screen += GFX.StartY * GFX_PITCH;
Depth = GFX.DB + GFX.StartY * GFX_PPL;
SLineMatrixData* l = &LineMatrixData [GFX.StartY];
for (Line = GFX.StartY; Line <= GFX.EndY; Line++, Screen += GFX_PITCH, Depth += GFX_PPL, l++)
{
HOffset = ((int32) LineData[Line].BG[0].HOffset << M7) >> M7;
VOffset = ((int32) LineData[Line].BG[0].VOffset << M7) >> M7;
CentreX = ((int32) l->CentreX << M7) >> M7;
CentreY = ((int32) l->CentreY << M7) >> M7;
if (PPU.Mode7VFlip) yy = 255 - (int) Line;
else yy = Line;
yy += VOffset - CentreY;
xx = HOffset - CentreX;
BB = l->MatrixB * yy + (CentreX << 8);
DD = l->MatrixD * yy + (CentreY << 8);
yy3 = ((yy + CentreY) & 7) << 4;
for (clip = 0; clip < ClipCount; clip++)
{
if (GFX.pCurrentClip->Count [0])
{
Left = GFX.pCurrentClip->Left [clip][0];
Right = GFX.pCurrentClip->Right [clip][0];
if (Right <= Left) continue;
}
uint16* p = (uint16*) Screen + Left;
uint8* d = Depth + Left - 1;
if (PPU.Mode7HFlip)
{
startx = Right - 1;
aa = -l->MatrixA;
cc = -l->MatrixC;
}
else
{
startx = Left;
aa = l->MatrixA;
cc = l->MatrixC;
}
int x = (Right - Left);
int AA = (l->MatrixA * (startx + xx) + BB);
int CC = (l->MatrixC * (startx + xx) + DD);
xx3 = (startx + HOffset);
#define M7R3(dir) \
__asm__ volatile (\
"1: \n"\
" ldrb r0, [%[d], #1]! \n"\
" mov r3, %[AA], asr #18 \n"\
" mov r1, %[AA], asr #11 \n"\
" cmp %[depth], r0 \n"\
" bls 4f \n"\
" orrs r3, r3, %[CC], asr #18 \n"\
" bne 2f \n"\
" \n"\
" mov r3, %[CC], asr #11 \n"\
" add r3, r1, r3, lsl #7 \n"\
" mov r3, r3, lsl #1 \n"\
" ldrb r3, [%[VRAM], r3] \n"\
" \n"\
" and r0, %[AA], #(7 << 8) \n"\
" and r1, %[CC], #(7 << 8) \n"\
" add r3, %[VRAM], r3, lsl #7 \n"\
" add r3, r3, r1, asr #4 \n"\
" add r3, r3, r0, asr #7 \n"\
" \n"\
" ldrb r0, [r3, #1] \n"\
" mov r1, #0x13000 \n"\
" ldrb r3, [%[d], r1] \n"\
" movs r0, r0, lsl #2 \n"\
" beq 4f \n"\
" strb %[depth], [%[d]] \n"\
" ldr r1, [%[colors], r0] \n"\
\
" cmp r3, #1 \n"\
" blo 11f \n"\
" mov r3, #0x200000 \n"\
" ldrneh r3, [%[p], r3] \n"\
" ldreq r3, %[fixedcolour] \n"\
\
ROP\
"11: \n"\
" strh r1, [%[p]] \n"\
\
" ldr r0, %[dcc] \n"\
" add %[xx3], %[xx3], #(" #dir ") \n"\
" add %[AA], %[AA], %[daa] \n"\
" add %[CC], %[CC], r0 \n"\
" add %[p], %[p], #2 \n"\
" subs %[x], %[x], #1 \n"\
" bne 1b \n"\
" b 3f \n"\
"2: \n"\
" ldr r3, %[yy3] \n"\
" and r0, %[xx3], #7 \n"\
" add r3, r3, r0, lsl #1 \n"\
" \n"\
" add r3, %[VRAM], r3 \n"\
" ldrb r0, [r3, #1] \n"\
" mov r1, #0x13000 \n"\
" ldrb r3, [%[d], r1] \n"\
" movs r0, r0, lsl #2 \n"\
" beq 4f \n"\
" strb %[depth], [%[d]] \n"\
\
" ldr r1, [%[colors], r0] \n"\
\
" cmp r3, #1 \n"\
" blo 12f \n"\
" mov r3, #0x200000 \n"\
" ldrneh r3, [%[p], r3] \n"\
" ldreq r3, %[fixedcolour] \n"\
\
ROP\
"12: \n"\
" strh r1, [%[p]] \n"\
"4: \n"\
" ldr r1, %[dcc] \n"\
" add %[xx3], %[xx3], #(" #dir ") \n"\
" add %[AA], %[AA], %[daa] \n"\
" add %[CC], %[CC], r1 \n"\
" add %[p], %[p], #2 \n"\
" subs %[x], %[x], #1 \n"\
" bne 1b \n"\
"3: \n"\
: [p] "+r" (p),\
[x] "+r" (x),\
[AA] "+r" (AA),\
[CC] "+r" (CC),\
[xx3] "+r" (xx3),\
[d] "+r" (d)\
: [daa] "r" (aa),\
[dcc] "m" (cc),\
[VRAM] "r" (Memory.VRAM),\
[colors] "r" (GFX.ScreenColors),\
[depth] "r" (depth),\
[yy3] "m" (yy3), \
[fixedcolour] "m" (fixedColour)\
: "r0", "r1", "r3", "cc"\
);
if (!PPU.Mode7HFlip)
{
M7R3(1)
}
else
{
M7R3(-1)
}
}
}
}
static void DrawBGMode7Background16R1R2(uint8* Screen, int bg, int depth)
{
int aa, cc;
int startx;
uint32 Left = 0;
uint32 Right = 256;
uint32 ClipCount = GFX.pCurrentClip->Count [0];
int32 HOffset;
int32 VOffset;
int32 CentreX;
int32 CentreY;
uint8* d;
uint16* p;
int yy;
int xx;
int BB;
int DD;
uint32 Line;
uint32 clip;
uint32 AndByY;
uint32 AndByX = 0xffffffff;
if (Settings.Dezaemon && PPU.Mode7Repeat == 2) AndByX = 0x7ff;
AndByY = AndByX << 4;
AndByX = AndByX << 1;
uint8* Depth;
unsigned int fixedColour = GFX.FixedColour;
int x, AA, CC;
if (!ClipCount) ClipCount = 1;
Screen += GFX.StartY * GFX_PITCH;
Depth = GFX.DB + GFX.StartY * GFX_PPL;
SLineMatrixData* l = &LineMatrixData [GFX.StartY];
for (Line = GFX.StartY; Line <= GFX.EndY; Line++, Screen += GFX_PITCH, Depth += GFX_PPL, l++)
{
HOffset = ((int32) LineData[Line].BG[0].HOffset << M7) >> M7;
VOffset = ((int32) LineData[Line].BG[0].VOffset << M7) >> M7;
CentreX = ((int32) l->CentreX << M7) >> M7;
CentreY = ((int32) l->CentreY << M7) >> M7;
if (PPU.Mode7VFlip) yy = 255 - (int) Line;
else yy = Line;
yy += VOffset - CentreY;
xx = HOffset - CentreX;
BB = l->MatrixB * yy + (CentreX << 8);
DD = l->MatrixD * yy + (CentreY << 8);
for (clip = 0; clip < ClipCount; clip++)
{
if (GFX.pCurrentClip->Count [0])
{
Left = GFX.pCurrentClip->Left [clip][0];
Right = GFX.pCurrentClip->Right [clip][0];
if (Right <= Left) continue;
}
p = (uint16*) Screen + Left;
d = Depth + Left - 1;
if (PPU.Mode7HFlip)
{
startx = Right - 1;
aa = -l->MatrixA;
cc = -l->MatrixC;
}
else
{
startx = Left;
aa = l->MatrixA;
cc = l->MatrixC;
}
x = (Right - Left);
AA = (l->MatrixA * (startx + xx) + BB);
CC = (l->MatrixC * (startx + xx) + DD);
__asm__ volatile(
"1: \n"
" ldrb r0, [%[d], #1]! \n"
" mov r3, %[AA], asr #18 \n"
" cmp %[depth], r0 \n"
" bls 2f \n"
" orrs r3, r3, %[CC], asr #18 \n"
" bne 2f \n"
" \n"
" ldr r1, %[AndByY] \n"
" ldr r0, %[AndByX] \n"
" and r1, r1, %[CC], asr #4 \n"
" and r0, r0, %[AA], asr #7 \n"
" \n"
" and r3, r1, #0x7f \n"
" sub r3, r1, r3 \n"
" add r3, r3, r0, asr #4 \n"
" add r3, r3, r3 \n"
" ldrb r3, [%[VRAM], r3] \n"
" and r1, r1, #0x70 \n"
" \n"
" add r3, %[VRAM], r3, lsl #7 \n"
" \n"
" and r0, r0, #14 \n"
" add r3, r3, r1 \n"
" add r3, r3, r0 \n"
" \n"
" ldrb r0, [r3, #1] \n"
" mov r1, #0x13000 \n" // R1 = ZDELTA
" ldrb r3, [%[d], r1] \n"
// " ldrb r3, [%[d], %[zdelta]] \n"
" movs r0, r0, lsl #2 \n"
" beq 2f \n"
" strb %[depth], [%[d]] \n"
" ldr r1, [%[colors], r0] \n"
" cmp r3, #1 \n"
" blo 11f \n"
" mov r3, #0x200000 \n"
" ldrneh r3, [%[p], r3] \n"
" ldreq r3, %[fixedcolour] \n"
ROP
"11: \n"
" strh r1, [%[p]] \n"
"2: \n"
//" ldr r0, %[dcc] \n"
" add %[AA], %[AA], %[daa] \n"
//" add %[CC], %[CC], r0 \n"
" add %[CC], %[CC], %[dcc] \n"
" add %[p], %[p], #2 \n"
" subs %[x], %[x], #1 \n"
" bne 1b \n"
: [p] "+r"(p),
[d] "+r"(d),
[x] "+r"(x),
[AA] "+r"(AA),
[CC] "+r"(CC)
: [daa] "r"(aa),
[dcc] "r"(cc),
[VRAM] "r"(Memory.VRAM),
[colors] "r"(GFX.ScreenColors),
[depth] "r"(depth),
//[zdelta] "r" (GFX.DepthDelta),
//[delta] "r" (GFX.Delta << 1),
[fixedcolour] "m"(fixedColour),
[AndByX] "m"(AndByX),
[AndByY] "m"(AndByY)
: "r0", "r1", "r3", "cc"
);
}
}
}
static void DrawBGMode7Background16R0(uint8* Screen, int bg, int depth)
{
int aa, cc;
int startx;
uint32 Left;
uint32 Right;
uint32 ClipCount = GFX.pCurrentClip->Count [0];
int32 HOffset;
int32 VOffset;
int32 CentreX;
int32 CentreY;
uint16* p;
uint8* d;
int yy;
int xx;
int BB;
int DD;
uint32 Line;
uint32 clip;
SLineMatrixData* l;
uint8* Depth;
unsigned int fixedColour = GFX.FixedColour;
int x, AA, CC;
unsigned int AndByY = (0x3ff << 4);
Left = 0;
Right = 256;
if (!ClipCount) ClipCount = 1;
l = &LineMatrixData [GFX.StartY];
Screen += GFX.StartY * GFX_PITCH;
Depth = GFX.DB + GFX.StartY * GFX_PPL;
for (Line = GFX.StartY; Line <= GFX.EndY; Line++, Screen += GFX_PITCH, Depth += GFX_PPL, l++)
{
HOffset = ((int32) LineData[Line].BG[0].HOffset << M7) >> M7;
VOffset = ((int32) LineData[Line].BG[0].VOffset << M7) >> M7;
CentreX = ((int32) l->CentreX << M7) >> M7;
CentreY = ((int32) l->CentreY << M7) >> M7;
if (PPU.Mode7VFlip) yy = 255 - (int) Line;
else yy = Line;
yy += (VOffset - CentreY) % 1023;
xx = (HOffset - CentreX) % 1023;
BB = l->MatrixB * yy + (CentreX << 8);
DD = l->MatrixD * yy + (CentreY << 8);
for (clip = 0; clip < ClipCount; clip++)
{
if (GFX.pCurrentClip->Count [0])
{
Left = GFX.pCurrentClip->Left [clip][0];
Right = GFX.pCurrentClip->Right [clip][0];
if (Right <= Left) continue;
}
p = (uint16*) Screen + Left;
d = Depth + Left - 1;
if (PPU.Mode7HFlip)
{
startx = Right - 1;
aa = -l->MatrixA;
cc = -l->MatrixC;
}
else
{
startx = Left;
aa = l->MatrixA;
cc = l->MatrixC;
}
x = (Right - Left);
AA = (l->MatrixA * (startx + xx) + BB);
CC = (l->MatrixC * (startx + xx) + DD);
__asm__ volatile(
" ldrb r0, [%[d], #1]! \n"
"1: \n"
" ldr r3, %[AndByY] \n"
" cmp %[depth], r0 \n"
" bls 2f \n"
" and r1, r3, %[CC], asr #4 \n"
" and r0, r3, %[AA], asr #4 \n"
" and r3, r1, #0x7f \n"
" sub r3, r1, r3 \n"
" add r3, r3, r0, asr #7 \n"
" add r3, r3, r3 \n"
" ldrb r3, [%[VRAM], r3] \n"
" \n"
" and r1, r1, #0x70 \n"
" and r0, r0, #(14 << 3) \n"
" add r3, %[VRAM], r3, lsl #7 \n"
" \n"
" add r3, r3, r1 \n"
" add r3, r3, r0, asr #3 \n"
" \n"
" ldrb r0, [r3, #1] \n"
" mov r1, #0x13000 \n" // r1 = ZDELTA
" ldrb r3, [%[d], r1] \n"
" movs r0, r0, lsl #2 \n"
" beq 2f \n"
" strb %[depth], [%[d]] \n"
" ldr r1, [%[colors], r0] \n"
" cmp r3, #1 \n"
" blo 11f \n"
" mov r3, #0x200000 \n"
" ldrneh r3, [%[p], r3] \n"
" ldreq r3, %[fixedcolour] \n"
ROP
"11: \n"
" strh r1, [%[p]] \n"
"2: \n"
" add %[AA], %[AA], %[daa] \n"
" add %[p], %[p], #2 \n"
" add %[CC], %[CC], %[dcc] \n"
" subs %[x], %[x], #1 \n"
" ldrneb r0, [%[d], #1]! \n"
" bne 1b \n"
: [p] "+r"(p),
[d] "+r"(d),
[x] "+r"(x),
[AA] "+r"(AA),
[CC] "+r"(CC)
: [daa] "r"(aa),
[dcc] "r"(cc),
[VRAM] "r"(Memory.VRAM),
[colors] "r"(GFX.ScreenColors),
//[zdelta] "r" (GFX.DepthDelta),
//[delta] "r" (GFX.Delta << 1),
[fixedcolour] "m"(fixedColour),
[depth] "r"(depth),
[AndByY] "m"(AndByY)
: "r0", "r1", "r3", "cc"
);
}
}
}
DEC_FMODE7(ROPNAME)
{
#ifdef __DEBUG__
#define DMESG(n) printf("Rendering Mode7, ROp: " #n ", R:%d, r2130: %d, bg: %d\n", PPU.Mode7Repeat, GFX.r2130 & 1, bg)
DMESG(ROPNAME)
#endif
if (GFX.r2130 & 1)
{
if (IPPU.DirectColourMapsNeedRebuild) S9xBuildDirectColourMaps();
GFX.ScreenColors = DirectColourMaps [0];
}
else GFX.ScreenColors = IPPU.ScreenColors;
switch (PPU.Mode7Repeat)
{
case 0:
DrawBGMode7Background16R0(Screen, bg, depth);
return;
case 3:
DrawBGMode7Background16R3(Screen, bg, depth);
return;
default:
DrawBGMode7Background16R1R2(Screen, bg, depth);
return;
}
}
|
