diff options
Diffstat (limited to 'GPU3D_Soft.cpp')
| -rw-r--r-- | GPU3D_Soft.cpp | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/GPU3D_Soft.cpp b/GPU3D_Soft.cpp index d47975d..6ac4e81 100644 --- a/GPU3D_Soft.cpp +++ b/GPU3D_Soft.cpp @@ -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 (xl<0 || xr>255) continue; // hax + //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); + /*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][3] + (((scrcoords[lnext][3] - scrcoords[lcur][3]) * lfactor) >> 12); - //s32 zr = scrcoords[rcur][3] + (((scrcoords[rnext][3] - scrcoords[rcur][3]) * rfactor) >> 12); + //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]); } } |