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* fix overflows during fixed-point multiply 

* small fix to SwapBuffers
This commit is contained in:
StapleButter 2017-02-13 14:59:51 +01:00
parent 361ddd7595
commit fb53fd5195
3 changed files with 104 additions and 76 deletions
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148
GPU3D.cpp
View File

@ -270,25 +270,25 @@ void MatrixMult4x4(s32* m, s32* s)
memcpy(tmp, m, 16*4);
// m = s*m
m[0] = (s[0]*tmp[0] + s[1]*tmp[4] + s[2]*tmp[8] + s[3]*tmp[12]) >> 12;
m[1] = (s[0]*tmp[1] + s[1]*tmp[5] + s[2]*tmp[9] + s[3]*tmp[13]) >> 12;
m[2] = (s[0]*tmp[2] + s[1]*tmp[6] + s[2]*tmp[10] + s[3]*tmp[14]) >> 12;
m[3] = (s[0]*tmp[3] + s[1]*tmp[7] + s[2]*tmp[11] + s[3]*tmp[15]) >> 12;
m[0] = ((s64)s[0]*tmp[0] + (s64)s[1]*tmp[4] + (s64)s[2]*tmp[8] + (s64)s[3]*tmp[12]) >> 12;
m[1] = ((s64)s[0]*tmp[1] + (s64)s[1]*tmp[5] + (s64)s[2]*tmp[9] + (s64)s[3]*tmp[13]) >> 12;
m[2] = ((s64)s[0]*tmp[2] + (s64)s[1]*tmp[6] + (s64)s[2]*tmp[10] + (s64)s[3]*tmp[14]) >> 12;
m[3] = ((s64)s[0]*tmp[3] + (s64)s[1]*tmp[7] + (s64)s[2]*tmp[11] + (s64)s[3]*tmp[15]) >> 12;
m[4] = (s[4]*tmp[0] + s[5]*tmp[4] + s[6]*tmp[8] + s[7]*tmp[12]) >> 12;
m[5] = (s[4]*tmp[1] + s[5]*tmp[5] + s[6]*tmp[9] + s[7]*tmp[13]) >> 12;
m[6] = (s[4]*tmp[2] + s[5]*tmp[6] + s[6]*tmp[10] + s[7]*tmp[14]) >> 12;
m[7] = (s[4]*tmp[3] + s[5]*tmp[7] + s[6]*tmp[11] + s[7]*tmp[15]) >> 12;
m[4] = ((s64)s[4]*tmp[0] + (s64)s[5]*tmp[4] + (s64)s[6]*tmp[8] + (s64)s[7]*tmp[12]) >> 12;
m[5] = ((s64)s[4]*tmp[1] + (s64)s[5]*tmp[5] + (s64)s[6]*tmp[9] + (s64)s[7]*tmp[13]) >> 12;
m[6] = ((s64)s[4]*tmp[2] + (s64)s[5]*tmp[6] + (s64)s[6]*tmp[10] + (s64)s[7]*tmp[14]) >> 12;
m[7] = ((s64)s[4]*tmp[3] + (s64)s[5]*tmp[7] + (s64)s[6]*tmp[11] + (s64)s[7]*tmp[15]) >> 12;
m[8] = (s[8]*tmp[0] + s[9]*tmp[4] + s[10]*tmp[8] + s[11]*tmp[12]) >> 12;
m[9] = (s[8]*tmp[1] + s[9]*tmp[5] + s[10]*tmp[9] + s[11]*tmp[13]) >> 12;
m[10] = (s[8]*tmp[2] + s[9]*tmp[6] + s[10]*tmp[10] + s[11]*tmp[14]) >> 12;
m[11] = (s[8]*tmp[3] + s[9]*tmp[7] + s[10]*tmp[11] + s[11]*tmp[15]) >> 12;
m[8] = ((s64)s[8]*tmp[0] + (s64)s[9]*tmp[4] + (s64)s[10]*tmp[8] + (s64)s[11]*tmp[12]) >> 12;
m[9] = ((s64)s[8]*tmp[1] + (s64)s[9]*tmp[5] + (s64)s[10]*tmp[9] + (s64)s[11]*tmp[13]) >> 12;
m[10] = ((s64)s[8]*tmp[2] + (s64)s[9]*tmp[6] + (s64)s[10]*tmp[10] + (s64)s[11]*tmp[14]) >> 12;
m[11] = ((s64)s[8]*tmp[3] + (s64)s[9]*tmp[7] + (s64)s[10]*tmp[11] + (s64)s[11]*tmp[15]) >> 12;
m[12] = (s[12]*tmp[0] + s[13]*tmp[4] + s[14]*tmp[8] + s[15]*tmp[12]) >> 12;
m[13] = (s[12]*tmp[1] + s[13]*tmp[5] + s[14]*tmp[9] + s[15]*tmp[13]) >> 12;
m[14] = (s[12]*tmp[2] + s[13]*tmp[6] + s[14]*tmp[10] + s[15]*tmp[14]) >> 12;
m[15] = (s[12]*tmp[3] + s[13]*tmp[7] + s[14]*tmp[11] + s[15]*tmp[15]) >> 12;
m[12] = ((s64)s[12]*tmp[0] + (s64)s[13]*tmp[4] + (s64)s[14]*tmp[8] + (s64)s[15]*tmp[12]) >> 12;
m[13] = ((s64)s[12]*tmp[1] + (s64)s[13]*tmp[5] + (s64)s[14]*tmp[9] + (s64)s[15]*tmp[13]) >> 12;
m[14] = ((s64)s[12]*tmp[2] + (s64)s[13]*tmp[6] + (s64)s[14]*tmp[10] + (s64)s[15]*tmp[14]) >> 12;
m[15] = ((s64)s[12]*tmp[3] + (s64)s[13]*tmp[7] + (s64)s[14]*tmp[11] + (s64)s[15]*tmp[15]) >> 12;
}
void MatrixMult4x3(s32* m, s32* s)
@ -296,26 +296,34 @@ void MatrixMult4x3(s32* m, s32* s)
s32 tmp[16];
memcpy(tmp, m, 16*4);
/*printf("4x3 matrix\n");
for (int j = 0; j < 12; j += 3)
{
for (int i = 0; i < 3; i++)
printf("%f ", s[i]/4096.0f);
printf("\n");
}*/
// m = s*m
m[0] = (s[0]*tmp[0] + s[1]*tmp[4] + s[2]*tmp[8]) >> 12;
m[1] = (s[0]*tmp[1] + s[1]*tmp[5] + s[2]*tmp[9]) >> 12;
m[2] = (s[0]*tmp[2] + s[1]*tmp[6] + s[2]*tmp[10]) >> 12;
m[3] = (s[0]*tmp[3] + s[1]*tmp[7] + s[2]*tmp[11]) >> 12;
m[0] = ((s64)s[0]*tmp[0] + (s64)s[1]*tmp[4] + (s64)s[2]*tmp[8]) >> 12;
m[1] = ((s64)s[0]*tmp[1] + (s64)s[1]*tmp[5] + (s64)s[2]*tmp[9]) >> 12;
m[2] = ((s64)s[0]*tmp[2] + (s64)s[1]*tmp[6] + (s64)s[2]*tmp[10]) >> 12;
m[3] = ((s64)s[0]*tmp[3] + (s64)s[1]*tmp[7] + (s64)s[2]*tmp[11]) >> 12;
m[4] = (s[3]*tmp[0] + s[4]*tmp[4] + s[5]*tmp[8]) >> 12;
m[5] = (s[3]*tmp[1] + s[4]*tmp[5] + s[5]*tmp[9]) >> 12;
m[6] = (s[3]*tmp[2] + s[4]*tmp[6] + s[5]*tmp[10]) >> 12;
m[7] = (s[3]*tmp[3] + s[4]*tmp[7] + s[5]*tmp[11]) >> 12;
m[4] = ((s64)s[3]*tmp[0] + (s64)s[4]*tmp[4] + (s64)s[5]*tmp[8]) >> 12;
m[5] = ((s64)s[3]*tmp[1] + (s64)s[4]*tmp[5] + (s64)s[5]*tmp[9]) >> 12;
m[6] = ((s64)s[3]*tmp[2] + (s64)s[4]*tmp[6] + (s64)s[5]*tmp[10]) >> 12;
m[7] = ((s64)s[3]*tmp[3] + (s64)s[4]*tmp[7] + (s64)s[5]*tmp[11]) >> 12;
m[8] = (s[6]*tmp[0] + s[7]*tmp[4] + s[8]*tmp[8]) >> 12;
m[9] = (s[6]*tmp[1] + s[7]*tmp[5] + s[8]*tmp[9]) >> 12;
m[10] = (s[6]*tmp[2] + s[7]*tmp[6] + s[8]*tmp[10]) >> 12;
m[11] = (s[6]*tmp[3] + s[7]*tmp[7] + s[8]*tmp[11]) >> 12;
m[8] = ((s64)s[6]*tmp[0] + (s64)s[7]*tmp[4] + (s64)s[8]*tmp[8]) >> 12;
m[9] = ((s64)s[6]*tmp[1] + (s64)s[7]*tmp[5] + (s64)s[8]*tmp[9]) >> 12;
m[10] = ((s64)s[6]*tmp[2] + (s64)s[7]*tmp[6] + (s64)s[8]*tmp[10]) >> 12;
m[11] = ((s64)s[6]*tmp[3] + (s64)s[7]*tmp[7] + (s64)s[8]*tmp[11]) >> 12;
m[12] = (s[9]*tmp[0] + s[10]*tmp[4] + s[11]*tmp[8] + 0x1000*tmp[12]) >> 12;
m[13] = (s[9]*tmp[1] + s[10]*tmp[5] + s[11]*tmp[9] + 0x1000*tmp[13]) >> 12;
m[14] = (s[9]*tmp[2] + s[10]*tmp[6] + s[11]*tmp[10] + 0x1000*tmp[14]) >> 12;
m[15] = (s[9]*tmp[3] + s[10]*tmp[7] + s[11]*tmp[11] + 0x1000*tmp[15]) >> 12;
m[12] = ((s64)s[9]*tmp[0] + (s64)s[10]*tmp[4] + (s64)s[11]*tmp[8] + (s64)0x1000*tmp[12]) >> 12;
m[13] = ((s64)s[9]*tmp[1] + (s64)s[10]*tmp[5] + (s64)s[11]*tmp[9] + (s64)0x1000*tmp[13]) >> 12;
m[14] = ((s64)s[9]*tmp[2] + (s64)s[10]*tmp[6] + (s64)s[11]*tmp[10] + (s64)0x1000*tmp[14]) >> 12;
m[15] = ((s64)s[9]*tmp[3] + (s64)s[10]*tmp[7] + (s64)s[11]*tmp[11] + (s64)0x1000*tmp[15]) >> 12;
}
void MatrixMult3x3(s32* m, s32* s)
@ -324,45 +332,45 @@ void MatrixMult3x3(s32* m, s32* s)
memcpy(tmp, m, 12*4);
// m = s*m
m[0] = (s[0]*tmp[0] + s[1]*tmp[4] + s[2]*tmp[8]) >> 12;
m[1] = (s[0]*tmp[1] + s[1]*tmp[5] + s[2]*tmp[9]) >> 12;
m[2] = (s[0]*tmp[2] + s[1]*tmp[6] + s[2]*tmp[10]) >> 12;
m[3] = (s[0]*tmp[3] + s[1]*tmp[7] + s[2]*tmp[11]) >> 12;
m[0] = ((s64)s[0]*tmp[0] + (s64)s[1]*tmp[4] + (s64)s[2]*tmp[8]) >> 12;
m[1] = ((s64)s[0]*tmp[1] + (s64)s[1]*tmp[5] + (s64)s[2]*tmp[9]) >> 12;
m[2] = ((s64)s[0]*tmp[2] + (s64)s[1]*tmp[6] + (s64)s[2]*tmp[10]) >> 12;
m[3] = ((s64)s[0]*tmp[3] + (s64)s[1]*tmp[7] + (s64)s[2]*tmp[11]) >> 12;
m[4] = (s[3]*tmp[0] + s[4]*tmp[4] + s[5]*tmp[8]) >> 12;
m[5] = (s[3]*tmp[1] + s[4]*tmp[5] + s[5]*tmp[9]) >> 12;
m[6] = (s[3]*tmp[2] + s[4]*tmp[6] + s[5]*tmp[10]) >> 12;
m[7] = (s[3]*tmp[3] + s[4]*tmp[7] + s[5]*tmp[11]) >> 12;
m[4] = ((s64)s[3]*tmp[0] + (s64)s[4]*tmp[4] + (s64)s[5]*tmp[8]) >> 12;
m[5] = ((s64)s[3]*tmp[1] + (s64)s[4]*tmp[5] + (s64)s[5]*tmp[9]) >> 12;
m[6] = ((s64)s[3]*tmp[2] + (s64)s[4]*tmp[6] + (s64)s[5]*tmp[10]) >> 12;
m[7] = ((s64)s[3]*tmp[3] + (s64)s[4]*tmp[7] + (s64)s[5]*tmp[11]) >> 12;
m[8] = (s[6]*tmp[0] + s[7]*tmp[4] + s[8]*tmp[8]) >> 12;
m[9] = (s[6]*tmp[1] + s[7]*tmp[5] + s[8]*tmp[9]) >> 12;
m[10] = (s[6]*tmp[2] + s[7]*tmp[6] + s[8]*tmp[10]) >> 12;
m[11] = (s[6]*tmp[3] + s[7]*tmp[7] + s[8]*tmp[11]) >> 12;
m[8] = ((s64)s[6]*tmp[0] + (s64)s[7]*tmp[4] + (s64)s[8]*tmp[8]) >> 12;
m[9] = ((s64)s[6]*tmp[1] + (s64)s[7]*tmp[5] + (s64)s[8]*tmp[9]) >> 12;
m[10] = ((s64)s[6]*tmp[2] + (s64)s[7]*tmp[6] + (s64)s[8]*tmp[10]) >> 12;
m[11] = ((s64)s[6]*tmp[3] + (s64)s[7]*tmp[7] + (s64)s[8]*tmp[11]) >> 12;
}
void MatrixScale(s32* m, s32* s)
{
m[0] = (s[0]*m[0]) >> 12;
m[1] = (s[0]*m[1]) >> 12;
m[2] = (s[0]*m[2]) >> 12;
m[3] = (s[0]*m[3]) >> 12;
m[0] = ((s64)s[0]*m[0]) >> 12;
m[1] = ((s64)s[0]*m[1]) >> 12;
m[2] = ((s64)s[0]*m[2]) >> 12;
m[3] = ((s64)s[0]*m[3]) >> 12;
m[4] = (s[1]*m[4]) >> 12;
m[5] = (s[1]*m[5]) >> 12;
m[6] = (s[1]*m[6]) >> 12;
m[7] = (s[1]*m[7]) >> 12;
m[4] = ((s64)s[1]*m[4]) >> 12;
m[5] = ((s64)s[1]*m[5]) >> 12;
m[6] = ((s64)s[1]*m[6]) >> 12;
m[7] = ((s64)s[1]*m[7]) >> 12;
m[8] = (s[2]*m[8]) >> 12;
m[9] = (s[2]*m[9]) >> 12;
m[10] = (s[2]*m[10]) >> 12;
m[11] = (s[2]*m[11]) >> 12;
m[8] = ((s64)s[2]*m[8]) >> 12;
m[9] = ((s64)s[2]*m[9]) >> 12;
m[10] = ((s64)s[2]*m[10]) >> 12;
m[11] = ((s64)s[2]*m[11]) >> 12;
}
void MatrixTranslate(s32* m, s32* s)
{
m[12] += (s[0]*m[0] + s[1]*m[4] + s[2]*m[8]) >> 12;
m[13] += (s[0]*m[1] + s[1]*m[5] + s[2]*m[9]) >> 12;
m[14] += (s[0]*m[2] + s[1]*m[6] + s[2]*m[10]) >> 12;
m[12] += ((s64)s[0]*m[0] + (s64)s[1]*m[4] + (s64)s[2]*m[8]) >> 12;
m[13] += ((s64)s[0]*m[1] + (s64)s[1]*m[5] + (s64)s[2]*m[9]) >> 12;
m[14] += ((s64)s[0]*m[2] + (s64)s[1]*m[6] + (s64)s[2]*m[10]) >> 12;
}
void UpdateClipMatrix()
@ -379,7 +387,7 @@ void UpdateClipMatrix()
template<int comp, s32 plane>
void ClipSegment(Vertex* outbuf, int num, Vertex* vout, Vertex* vin)
{
s32 factor = ((vin->Position[3] - (plane*vin->Position[comp])) << 12) /
s64 factor = ((vin->Position[3] - (plane*vin->Position[comp])) << 12) /
((vin->Position[3] - (plane*vin->Position[comp])) - (vout->Position[3] - (plane*vout->Position[comp])));
Vertex mid;
@ -412,6 +420,15 @@ void SubmitPolygon()
int prev, next;
int c;
/*if (NumPolygons == 91)
for (int i = 0; i < nverts; i++)
{
Vertex vtx = TempVertexBuffer[i];
printf("pre-clip v%d: %f %f %f %f\n", i,
vtx.Position[0]/4096.0f, vtx.Position[1]/4096.0f,
vtx.Position[2]/4096.0f, vtx.Position[3]/4096.0f);
}*/
// X clipping
prev = nverts-1; next = 1; c = 0;
@ -603,7 +620,7 @@ void SubmitPolygon()
void SubmitVertex()
{
s32 vertex[4] = {(s32)CurVertex[0], (s32)CurVertex[1], (s32)CurVertex[2], 0x1000};
s64 vertex[4] = {(s64)CurVertex[0], (s64)CurVertex[1], (s64)CurVertex[2], 0x1000};
//s32 vertextrans[4];
Vertex* vertextrans = &TempVertexBuffer[VertexNumInPoly];
@ -769,9 +786,12 @@ void ExecuteCommand()
ExecParams[ExecParamCount] = entry.Param;
ExecParamCount++;
//if ((entry.Command&0xF0)==0x10)
// printf("MATRIX CMD %02X %08X\n", entry.Command, entry.Param);
if (ExecParamCount >= CmdNumParams[entry.Command])
{
CycleCount += CmdNumCycles[entry.Command];
//CycleCount += CmdNumCycles[entry.Command];
ExecParamCount = 0;
GXStat &= ~(1<<14);
@ -1129,6 +1149,9 @@ void ExecuteCommand()
void Run(s32 cycles)
{
if (FlushRequest)
return;
if (CycleCount <= 0)
{
while (CycleCount <= 0 && !CmdPIPE->IsEmpty())
@ -1140,7 +1163,6 @@ void Run(s32 cycles)
if (CycleCount <= 0 && CmdPIPE->IsEmpty())
{
CycleCount = 0;
if (!FlushRequest)
GXStat &= ~(1<<27);
}
}

22
GPU3D_Soft.cpp
View File

@ -102,7 +102,7 @@ void RenderPolygon(Polygon* polygon)
vbot = i;
}
//if (vtx->Color[0]==63 && vtx->Color[1]==0 && vtx->Color[2]==0)
//printf("v%d: %d,%d W=%d\n", i, scrX, 191-scrY, vtx->Position[3]);
//printf("v%d: %d,%d Z=%f W=%f\n", i, scrX, 191-scrY, vtx->Position[2]/4096.0f, vtx->Position[3]/4096.0f);
}
// draw, line per line
@ -176,11 +176,16 @@ void RenderPolygon(Polygon* polygon)
s32 xl = scrcoords[lcur][0] + (((scrcoords[lnext][0] - scrcoords[lcur][0]) * lfactor) >> 12);
s32 xr = scrcoords[rcur][0] + (((scrcoords[rnext][0] - scrcoords[rcur][0]) * rfactor) >> 12);
//if (vlcur->Color[0]==0 && vlcur->Color[1]==63 && vlcur->Color[2]==0)
// printf("y:%d xleft:%d xright:%d %d,%d %d,%d\n", y, xl, xr, lcur, rcur, vtop, vbot);
if (xl<0 || xr>255) continue; // hax
//s32 zl = scrcoords[lcur][3] + (((scrcoords[lnext][3] - scrcoords[lcur][3]) * lfactor) >> 12);
//s32 zr = scrcoords[rcur][3] + (((scrcoords[rnext][3] - scrcoords[rcur][3]) * rfactor) >> 12);
//if (vlcur->Color[0]==0 && vlcur->Color[1]==63 && vlcur->Color[2]==0)
/*printf("y:%d xleft:%d xright:%d %d,%d %d,%d | left: %d to %d right: %d to %d\n",
y, xl, xr, lcur, rcur, vtop, vbot,
scrcoords[lcur][0], scrcoords[lnext][0],
scrcoords[rcur][0], scrcoords[rnext][0]);*/
//s32 zl = scrcoords[lcur][2] + (((scrcoords[lnext][2] - scrcoords[lcur][2]) * lfactor) >> 12);
//s32 zr = scrcoords[rcur][2] + (((scrcoords[rnext][2] - scrcoords[rcur][2]) * rfactor) >> 12);
u8 rl = vlcur->Color[0] + (((vlnext->Color[0] - vlcur->Color[0]) * lfactor) >> 12);
u8 gl = vlcur->Color[1] + (((vlnext->Color[1] - vlcur->Color[1]) * lfactor) >> 12);
@ -200,12 +205,12 @@ void RenderPolygon(Polygon* polygon)
{
s32 xfactor = (x - xl) * xdiv;
//s32 z = (zl << 12) + ((zr - zl) * xfactor);
//z = zl + (((zr - zl) * xfactor) >> 12);
//s32 z = (((zr - zl) * xfactor) >> 12);
//if (zr!=zl) z = (z << 12) / (zr - zl);
//s32 z_inv = ((z>>12)==0) ? 0x1000 : 0x1000000 / (z >> 12);
//xfactor = (xfactor * z_inv) >> 12;
//xfactor = (xfactor << 12) / z;
//if (z) xfactor = (xfactor << 12) / z;
// TODO: get rid of this shit
if (x<0 || x>255 || y<0 || y>191)
@ -248,6 +253,7 @@ void RenderFrame(Vertex* vertices, Polygon* polygons, int npolys)
polygons[i].Vertices[j]->Position[1]/4096.0f,
polygons[i].Vertices[j]->Position[2]/4096.0f);
*/
//printf("polygon %d\n", i);
RenderPolygon(&polygons[i]);
}
}

8
melonDS.depend
View File

@ -1,5 +1,5 @@
# depslib dependency file v1.0
1486824787 source:c:\documents\sources\melonds\main.cpp
1486993536 source:c:\documents\sources\melonds\main.cpp
<stdio.h>
<windows.h>
"NDS.h"
@ -10,7 +10,7 @@
1481161027 c:\documents\sources\melonds\types.h
1486947856 source:c:\documents\sources\melonds\nds.cpp
1486994139 source:c:\documents\sources\melonds\nds.cpp
<stdio.h>
<string.h>
"NDS.h"
@ -148,14 +148,14 @@
1486777933 c:\documents\sources\melonds\gpu3d.h
1486947978 source:c:\documents\sources\melonds\gpu3d.cpp
1486993935 source:c:\documents\sources\melonds\gpu3d.cpp
<stdio.h>
<string.h>
"NDS.h"
"GPU.h"
"FIFO.h"
1486947027 source:c:\documents\sources\melonds\gpu3d_soft.cpp
1486994049 source:c:\documents\sources\melonds\gpu3d_soft.cpp
<stdio.h>
<string.h>
"NDS.h"