piwalker/melonDS
1
0
Fork 0
mirror of https://github.com/melonDS-emu/melonDS.git synced 2025-06-28 09:59:41 -06:00
Code Issues Packages Projects Releases Wiki Activity

start work on polygon edges and shit

Browse Source
This commit is contained in:
StapleButter
2017-03-13 00:45:26 +01:00
parent 94dced7c41
commit 671050a7f0
3 changed files with 321 additions and 144 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
GPU3D.cpp
View File

@ -418,13 +418,14 @@ void ClipSegment(Vertex* outbuf, Vertex* vout, Vertex* vin)
s32 factor_den = factor_num - (vout->Position[3] - (plane*vout->Position[comp]));
Vertex mid;
#define INTERPOLATE(var) mid.var = (vin->var + ((vout->var - vin->var) * factor_num) / factor_den);
#define INTERPOLATE(var) { mid.var = (vin->var + ((vout->var - vin->var) * factor_num) / factor_den); }
INTERPOLATE(Position[0]);
INTERPOLATE(Position[1]);
INTERPOLATE(Position[2]);
if (comp != 0) INTERPOLATE(Position[0]);
if (comp != 1) INTERPOLATE(Position[1]);
if (comp != 2) INTERPOLATE(Position[2]);
INTERPOLATE(Position[3]);
mid.Position[comp] = plane*mid.Position[3];
//printf("clip %d,%d: Y = %08X %08X %08X, %08X %08X\n", comp, plane, vin->Position[1], vout->Position[1], mid.Position[1], (s32)factor_num, factor_den);
INTERPOLATE(Color[0]);
INTERPOLATE(Color[1]);
INTERPOLATE(Color[2]);
@ -775,14 +776,14 @@ void SubmitPolygon()
poly->NumVertices += 2;
}
//if (c==4 && NumPolygons>340) printf("polygon:\n");
for (int i = clipstart; i < c; i++)
{
CurVertexRAM[NumVertices] = clippedvertices[1][i];
poly->Vertices[i] = &CurVertexRAM[NumVertices];
NumVertices++;
poly->NumVertices++;
poly->NumVertices++;//if (c==4 && NumPolygons>340)printf(" - v%d: %08X %08X %08X\n", i, poly->Vertices[i]->Position[0], poly->Vertices[i]->Position[1],poly->Vertices[i]->Position[3]);
}
if (PolygonMode >= 2)
@ -795,7 +796,9 @@ void SubmitVertex()
{
s64 vertex[4] = {(s64)CurVertex[0], (s64)CurVertex[1], (s64)CurVertex[2], 0x1000};
Vertex* vertextrans = &TempVertexBuffer[VertexNumInPoly];
if (PolygonMode==0&&NumPolygons>440&&false)printf("raw vertex %d: %08X %08X | %08X %08X %08X %08X\n",
VertexNum, CurVertex[0], CurVertex[1],
ClipMatrix[1],ClipMatrix[5],ClipMatrix[9],ClipMatrix[13]);
UpdateClipMatrix();
vertextrans->Position[0] = (vertex[0]*ClipMatrix[0] + vertex[1]*ClipMatrix[4] + vertex[2]*ClipMatrix[8] + vertex[3]*ClipMatrix[12]) >> 12;
vertextrans->Position[1] = (vertex[0]*ClipMatrix[1] + vertex[1]*ClipMatrix[5] + vertex[2]*ClipMatrix[9] + vertex[3]*ClipMatrix[13]) >> 12;