box test, pos test, vec test

This commit is contained in:
StapleButter 2017-04-09 17:15:39 +02:00
parent de4b046232
commit 2fef876eeb
1 changed files with 152 additions and 3 deletions

View File

@ -215,6 +215,9 @@ u32 CurPolygonAttr;
u32 TexParam; u32 TexParam;
u32 TexPalette; u32 TexPalette;
s32 PosTestResult[4];
s16 VecTestResult[3];
Vertex TempVertexBuffer[4]; Vertex TempVertexBuffer[4];
u32 VertexNum; u32 VertexNum;
u32 VertexNumInPoly; u32 VertexNumInPoly;
@ -301,6 +304,9 @@ void Reset()
PosMatrixStackPointer = 0; PosMatrixStackPointer = 0;
TexMatrixStackPointer = 0; TexMatrixStackPointer = 0;
memset(PosTestResult, 0, 4*4);
memset(VecTestResult, 0, 2*3);
VertexNum = 0; VertexNum = 0;
VertexNumInPoly = 0; VertexNumInPoly = 0;
@ -551,6 +557,7 @@ int ClipAgainstPlane(Vertex* vertices, int nverts, int clipstart)
vertices[c++] = vtx; vertices[c++] = vtx;
} }
// checkme
for (int i = 0; i < c; i++) for (int i = 0; i < c; i++)
{ {
Vertex* vtx = &vertices[i]; Vertex* vtx = &vertices[i];
@ -908,6 +915,8 @@ void SubmitVertex()
s32 CalculateLighting() s32 CalculateLighting()
{ {
// TODO: this requires matrix mode 2, apparently
if ((TexParam >> 30) == 2) if ((TexParam >> 30) == 2)
{ {
TexCoords[0] = RawTexCoords[0] + (((s64)Normal[0]*TexMatrix[0] + (s64)Normal[1]*TexMatrix[4] + (s64)Normal[2]*TexMatrix[8]) >> 21); TexCoords[0] = RawTexCoords[0] + (((s64)Normal[0]*TexMatrix[0] + (s64)Normal[1]*TexMatrix[4] + (s64)Normal[2]*TexMatrix[8]) >> 21);
@ -974,6 +983,134 @@ s32 CalculateLighting()
} }
void BoxTest(u32* params)
{
Vertex cube[8];
Vertex face[10];
int res;
GXStat &= ~(1<<1);
s32 x0 = (s32)(s16)(params[0] & 0xFFFF);
s32 y0 = ((s32)params[0]) >> 16;
s32 z0 = (s32)(s16)(params[1] & 0xFFFF);
s32 x1 = ((s32)params[1]) >> 16;
s32 y1 = (s32)(s16)(params[2] & 0xFFFF);
s32 z1 = ((s32)params[2]) >> 16;
x1 += x0;
y1 += y0;
z1 += z0;
cube[0].Position[0] = x0; cube[0].Position[1] = y0; cube[0].Position[2] = z0;
cube[1].Position[0] = x1; cube[1].Position[1] = y0; cube[1].Position[2] = z0;
cube[2].Position[0] = x1; cube[2].Position[1] = y1; cube[2].Position[2] = z0;
cube[3].Position[0] = x0; cube[3].Position[1] = y1; cube[3].Position[2] = z0;
cube[4].Position[0] = x0; cube[4].Position[1] = y1; cube[4].Position[2] = z1;
cube[5].Position[0] = x0; cube[5].Position[1] = y0; cube[5].Position[2] = z1;
cube[6].Position[0] = x1; cube[6].Position[1] = y0; cube[6].Position[2] = z1;
cube[7].Position[0] = x1; cube[7].Position[1] = y1; cube[7].Position[2] = z1;
UpdateClipMatrix();
for (int i = 0; i < 8; i++)
{
s32 x = cube[i].Position[0];
s32 y = cube[i].Position[1];
s32 z = cube[i].Position[2];
cube[i].Position[0] = ((s64)x*ClipMatrix[0] + (s64)y*ClipMatrix[4] + (s64)z*ClipMatrix[8] + 0x1000*ClipMatrix[12]) >> 12;
cube[i].Position[1] = ((s64)x*ClipMatrix[1] + (s64)y*ClipMatrix[5] + (s64)z*ClipMatrix[9] + 0x1000*ClipMatrix[13]) >> 12;
cube[i].Position[2] = ((s64)x*ClipMatrix[2] + (s64)y*ClipMatrix[6] + (s64)z*ClipMatrix[10] + 0x1000*ClipMatrix[14]) >> 12;
cube[i].Position[3] = ((s64)x*ClipMatrix[3] + (s64)y*ClipMatrix[7] + (s64)z*ClipMatrix[11] + 0x1000*ClipMatrix[15]) >> 12;
}
// front face (-Z)
face[0] = cube[0]; face[1] = cube[1]; face[2] = cube[2]; face[3] = cube[3];
res = ClipPolygon<false>(face, 4, 0);
if (res > 0)
{
GXStat |= (1<<1);
return;
}
// back face (+Z)
face[0] = cube[4]; face[1] = cube[5]; face[2] = cube[6]; face[3] = cube[7];
res = ClipPolygon<false>(face, 4, 0);
if (res > 0)
{
GXStat |= (1<<1);
return;
}
// left face (-X)
face[0] = cube[0]; face[1] = cube[3]; face[2] = cube[4]; face[3] = cube[5];
res = ClipPolygon<false>(face, 4, 0);
if (res > 0)
{
GXStat |= (1<<1);
return;
}
// right face (+X)
face[0] = cube[1]; face[1] = cube[2]; face[2] = cube[7]; face[3] = cube[6];
res = ClipPolygon<false>(face, 4, 0);
if (res > 0)
{
GXStat |= (1<<1);
return;
}
// bottom face (-Y)
face[0] = cube[0]; face[1] = cube[1]; face[2] = cube[6]; face[3] = cube[5];
res = ClipPolygon<false>(face, 4, 0);
if (res > 0)
{
GXStat |= (1<<1);
return;
}
// top face (+Y)
face[0] = cube[2]; face[1] = cube[3]; face[2] = cube[4]; face[3] = cube[7];
res = ClipPolygon<false>(face, 4, 0);
if (res > 0)
{
GXStat |= (1<<1);
return;
}
}
void PosTest()
{
s64 vertex[4] = {(s64)CurVertex[0], (s64)CurVertex[1], (s64)CurVertex[2], 0x1000};
UpdateClipMatrix();
PosTestResult[0] = (vertex[0]*ClipMatrix[0] + vertex[1]*ClipMatrix[4] + vertex[2]*ClipMatrix[8] + vertex[3]*ClipMatrix[12]) >> 12;
PosTestResult[1] = (vertex[0]*ClipMatrix[1] + vertex[1]*ClipMatrix[5] + vertex[2]*ClipMatrix[9] + vertex[3]*ClipMatrix[13]) >> 12;
PosTestResult[2] = (vertex[0]*ClipMatrix[2] + vertex[1]*ClipMatrix[6] + vertex[2]*ClipMatrix[10] + vertex[3]*ClipMatrix[14]) >> 12;
PosTestResult[3] = (vertex[0]*ClipMatrix[3] + vertex[1]*ClipMatrix[7] + vertex[2]*ClipMatrix[11] + vertex[3]*ClipMatrix[15]) >> 12;
}
void VecTest(u32* params)
{
// TODO: apparently requires matrix mode 2
// TODO: maybe it overwrites the normal registers, too
s16 normal[3];
normal[0] = (s16)((params[0] & 0x000003FF) << 6) >> 6;
normal[1] = (s16)((params[0] & 0x000FFC00) >> 4) >> 6;
normal[2] = (s16)((params[0] & 0x3FF00000) >> 14) >> 6;
VecTestResult[0] = (normal[0]*VecMatrix[0] + normal[1]*VecMatrix[4] + normal[2]*VecMatrix[8]) >> 9;
VecTestResult[1] = (normal[0]*VecMatrix[1] + normal[1]*VecMatrix[5] + normal[2]*VecMatrix[9]) >> 9;
VecTestResult[2] = (normal[0]*VecMatrix[2] + normal[1]*VecMatrix[6] + normal[2]*VecMatrix[10]) >> 9;
if (VecTestResult[0] & 0x1000) VecTestResult[0] |= 0xF000;
if (VecTestResult[1] & 0x1000) VecTestResult[1] |= 0xF000;
if (VecTestResult[2] & 0x1000) VecTestResult[2] |= 0xF000;
}
void CmdFIFOWrite(CmdFIFOEntry& entry) void CmdFIFOWrite(CmdFIFOEntry& entry)
{ {
@ -1505,17 +1642,20 @@ void ExecuteCommand()
case 0x70: // box test case 0x70: // box test
NumTestCommands -= 3; NumTestCommands -= 3;
// TODO BoxTest(ExecParams);
break; break;
case 0x71: // pos test case 0x71: // pos test
NumTestCommands -= 2; NumTestCommands -= 2;
// CurVertex[0] = ExecParams[0] & 0xFFFF;
CurVertex[1] = ExecParams[0] >> 16;
CurVertex[2] = ExecParams[1] & 0xFFFF;
PosTest();
break; break;
case 0x72: // vec test case 0x72: // vec test
NumTestCommands--; NumTestCommands--;
// VecTest(ExecParams);
break; break;
default: default:
@ -1636,6 +1776,10 @@ u16 Read16(u32 addr)
return NumPolygons; return NumPolygons;
case 0x04000606: case 0x04000606:
return NumVertices; return NumVertices;
case 0x04000630: return VecTestResult[0];
case 0x04000632: return VecTestResult[1];
case 0x04000634: return VecTestResult[2];
} }
printf("unknown GPU3D read16 %08X\n", addr); printf("unknown GPU3D read16 %08X\n", addr);
@ -1667,6 +1811,11 @@ u32 Read32(u32 addr)
case 0x04000604: case 0x04000604:
return NumPolygons | (NumVertices << 16); return NumPolygons | (NumVertices << 16);
case 0x04000620: return PosTestResult[0];
case 0x04000624: return PosTestResult[1];
case 0x04000628: return PosTestResult[2];
case 0x0400062C: return PosTestResult[3];
case 0x04000680: return VecMatrix[0]; case 0x04000680: return VecMatrix[0];
case 0x04000684: return VecMatrix[1]; case 0x04000684: return VecMatrix[1];
case 0x04000688: return VecMatrix[2]; case 0x04000688: return VecMatrix[2];