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Diffstat (limited to 'plugins/gpu_unai/README_senquack.txt')
| -rw-r--r-- | plugins/gpu_unai/README_senquack.txt | 956 |
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diff --git a/plugins/gpu_unai/README_senquack.txt b/plugins/gpu_unai/README_senquack.txt new file mode 100644 index 0000000..cda17fc --- /dev/null +++ b/plugins/gpu_unai/README_senquack.txt @@ -0,0 +1,956 @@ +//NOTE: You can find the set of original Unai poly routines (disabled now) +// at the bottom end of this file. + +//senquack - Original Unai GPU poly routines have been replaced with new +// ones based on DrHell routines. The original routines suffered from +// shifted rows, causing many quads to have their first triangle drawn +// correctly, but the second triangle would randomly have pixels shifted +// either left or right or entire rows not drawn at all. Furthermore, +// some times entire triangles seemed to be either missing or only +// partially drawn (most clearly seen in sky/road textures in NFS3, +// clock tower in beginning of Castlevania SOTN). Pixel gaps were +// prevalent. +// +// Since DrHell GPU didn't seem to exhibit these artifacts at all, I adapted +// its routines to GPU Unai (Unai was probably already originally based on it). +// DrHell uses 22.10 fixed point instead of Unai's 16.16, so gpu_fixedpoint.h +// required modification as well as gpu_inner.h (where gpuPolySpanFn driver +// functions are). +// +// Originally, I tried to patch up original Unai routines and got as far +// as fixing the shifted rows, but still had other problem of triangles rendered +// wrong (black triangular gaps in NFS3 sky, clock tower in Castlevania SOTN). +// I eventually gave up. Even after rewriting/adapting the routines, +// however, I still had some random pixel droupouts, specifically in +// NFS3 sky texture. I discovered that gpu_inner.h gpuPolySpanFn function +// was taking optimizations to an extreme and packing u/v texture coords +// into one 32-bit word, reducing their accuracy. Only once they were +// handled in full-accuracy individual words was that problem fixed. +// +// NOTE: I also added support for doing divisions using the FPU, either +// with normal division or multiplication-by-reciprocal. +// To use float division, GPU_UNAI_USE_FLOATMATH should be defined. +// To use float mult-by-reciprocal, GPU_UNAI_USE_FLOAT_DIV_MULTINV +// can be specified (GPU_UNAI_USE_FLOATMATH must also be specified) +// To use inaccurate fixed-point mult-by-reciprocal, define +// GPU_UNAI_USE_INT_DIV_MULTINV. This is the default on older +// ARM devices like Wiz/Caanoo that have neither integer division +// in hardware or an FPU. It results in some pixel dropouts, +// texture glitches, but less than the original GPU UNAI code. +// +// If nothing is specified, integer division will be used. +// +// NOTE 2: Even with MIPS32R2 having FPU recip.s instruction, and it is +// used when this platform is detected, I found it not to give any +// noticeable speedup over normal float division (in fact seemed a tiny +// tiny bit slower). I also found float division to not provide any +// noticeable speedups versus integer division on MISP32R2 platform. +// Granted, the differences were all around .5 FPS or less. +// +// TODO: +// * See if anything can be done about remaining pixel gaps in Gran +// Turismo car models, track. +// * Find better way of passing parameters to gpuPolySpanFn functions than +// through original Unai method of using global variables u4,v4,du4 etc. +// * Come up with some newer way of drawing rows of pixels than by calling +// gpuPolySpanFn through function pointer. For every row, at least on +// MIPS platforms, many registers are having to be pushed/popped from stack +// on each call, which is strange since MIPS has so many registers. +// * MIPS MXU/ASM optimized gpuPolySpanFn ? + +////////////////////////////////////////////////////////////////////////// +//senquack - Disabled original Unai poly routines left here for reference: +// ( from gpu_raster_polygon.h ) +////////////////////////////////////////////////////////////////////////// +#define GPU_TESTRANGE3() \ +{ \ + if(x0<0) { if((x1-x0)>CHKMAX_X) return; if((x2-x0)>CHKMAX_X) return; } \ + if(x1<0) { if((x0-x1)>CHKMAX_X) return; if((x2-x1)>CHKMAX_X) return; } \ + if(x2<0) { if((x0-x2)>CHKMAX_X) return; if((x1-x2)>CHKMAX_X) return; } \ + if(y0<0) { if((y1-y0)>CHKMAX_Y) return; if((y2-y0)>CHKMAX_Y) return; } \ + if(y1<0) { if((y0-y1)>CHKMAX_Y) return; if((y2-y1)>CHKMAX_Y) return; } \ + if(y2<0) { if((y0-y2)>CHKMAX_Y) return; if((y1-y2)>CHKMAX_Y) return; } \ +} + +/*---------------------------------------------------------------------- +F3 +----------------------------------------------------------------------*/ + +void gpuDrawF3(const PP gpuPolySpanDriver) +{ + const int li=linesInterlace; + const int pi=(progressInterlace?(linesInterlace+1):0); + const int pif=(progressInterlace?(progressInterlace_flag?(linesInterlace+1):0):1); + s32 temp; + s32 xa, xb, xmin, xmax; + s32 ya, yb, ymin, ymax; + s32 x0, x1, x2, x3, dx3=0, x4, dx4=0, dx; + s32 y0, y1, y2; + + x0 = GPU_EXPANDSIGN(PacketBuffer.S2[2]); + y0 = GPU_EXPANDSIGN(PacketBuffer.S2[3]); + x1 = GPU_EXPANDSIGN(PacketBuffer.S2[4]); + y1 = GPU_EXPANDSIGN(PacketBuffer.S2[5]); + x2 = GPU_EXPANDSIGN(PacketBuffer.S2[6]); + y2 = GPU_EXPANDSIGN(PacketBuffer.S2[7]); + + GPU_TESTRANGE3(); + + x0 += DrawingOffset[0]; x1 += DrawingOffset[0]; x2 += DrawingOffset[0]; + y0 += DrawingOffset[1]; y1 += DrawingOffset[1]; y2 += DrawingOffset[1]; + + xmin = DrawingArea[0]; xmax = DrawingArea[2]; + ymin = DrawingArea[1]; ymax = DrawingArea[3]; + + { + int rx0 = Max2(xmin,Min3(x0,x1,x2)); + int ry0 = Max2(ymin,Min3(y0,y1,y2)); + int rx1 = Min2(xmax,Max3(x0,x1,x2)); + int ry1 = Min2(ymax,Max3(y0,y1,y2)); + if( rx0>=rx1 || ry0>=ry1) return; + } + + PixelData = GPU_RGB16(PacketBuffer.U4[0]); + + if (y0 >= y1) + { + if( y0!=y1 || x0>x1 ) + { + GPU_SWAP(x0, x1, temp); + GPU_SWAP(y0, y1, temp); + } + } + if (y1 >= y2) + { + if( y1!=y2 || x1>x2 ) + { + GPU_SWAP(x1, x2, temp); + GPU_SWAP(y1, y2, temp); + } + } + if (y0 >= y1) + { + if( y0!=y1 || x0>x1 ) + { + GPU_SWAP(x0, x1, temp); + GPU_SWAP(y0, y1, temp); + } + } + + ya = y2 - y0; + yb = y2 - y1; + dx =(x2 - x1) * ya - (x2 - x0) * yb; + + for (s32 loop0 = 2; loop0; --loop0) + { + if (loop0 == 2) + { + ya = y0; + yb = y1; + x3 = i2x(x0); + x4 = y0!=y1 ? x3 : i2x(x1); + if (dx < 0) + { + dx3 = xLoDivx((x2 - x0), (y2 - y0)); + dx4 = xLoDivx((x1 - x0), (y1 - y0)); + } + else + { + dx3 = xLoDivx((x1 - x0), (y1 - y0)); + dx4 = xLoDivx((x2 - x0), (y2 - y0)); + } + } + else + { + ya = y1; + yb = y2; + if (dx < 0) + { + x4 = i2x(x1); + x3 = i2x(x0) + (dx3 * (y1 - y0)); + dx4 = xLoDivx((x2 - x1), (y2 - y1)); + } + else + { + x3 = i2x(x1); + x4 = i2x(x0) + (dx4 * (y1 - y0)); + dx3 = xLoDivx((x2 - x1), (y2 - y1)); + } + } + + temp = ymin - ya; + if (temp > 0) + { + ya = ymin; + x3 += dx3*temp; + x4 += dx4*temp; + } + if (yb > ymax) yb = ymax; + if (ya>=yb) continue; + + x3+= fixed_HALF; + x4+= fixed_HALF; + + u16* PixelBase = &((u16*)GPU_FrameBuffer)[FRAME_OFFSET(0, ya)]; + + for(;ya<yb;++ya, PixelBase += FRAME_WIDTH, x3+=dx3, x4+=dx4) + { + if (ya&li) continue; + if ((ya&pi)==pif) continue; + xa = x2i(x3); + xb = x2i(x4); + if( (xa>xmax) || (xb<xmin) ) continue; + if(xa < xmin) xa = xmin; + if(xb > xmax) xb = xmax; + xb-=xa; + if(xb>0) gpuPolySpanDriver(PixelBase + xa,xb); + } + } +} + +/*---------------------------------------------------------------------- +FT3 +----------------------------------------------------------------------*/ + +void gpuDrawFT3(const PP gpuPolySpanDriver) +{ + const int li=linesInterlace; + const int pi=(progressInterlace?(linesInterlace+1):0); + const int pif=(progressInterlace?(progressInterlace_flag?(linesInterlace+1):0):1); + s32 temp; + s32 xa, xb, xmin, xmax; + s32 ya, yb, ymin, ymax; + s32 x0, x1, x2, x3, dx3=0, x4, dx4=0, dx; + s32 y0, y1, y2; + s32 u0, u1, u2, u3, du3=0; + s32 v0, v1, v2, v3, dv3=0; + + x0 = GPU_EXPANDSIGN(PacketBuffer.S2[2] ); + y0 = GPU_EXPANDSIGN(PacketBuffer.S2[3] ); + x1 = GPU_EXPANDSIGN(PacketBuffer.S2[6] ); + y1 = GPU_EXPANDSIGN(PacketBuffer.S2[7] ); + x2 = GPU_EXPANDSIGN(PacketBuffer.S2[10]); + y2 = GPU_EXPANDSIGN(PacketBuffer.S2[11]); + + GPU_TESTRANGE3(); + + x0 += DrawingOffset[0]; x1 += DrawingOffset[0]; x2 += DrawingOffset[0]; + y0 += DrawingOffset[1]; y1 += DrawingOffset[1]; y2 += DrawingOffset[1]; + + xmin = DrawingArea[0]; xmax = DrawingArea[2]; + ymin = DrawingArea[1]; ymax = DrawingArea[3]; + + { + int rx0 = Max2(xmin,Min3(x0,x1,x2)); + int ry0 = Max2(ymin,Min3(y0,y1,y2)); + int rx1 = Min2(xmax,Max3(x0,x1,x2)); + int ry1 = Min2(ymax,Max3(y0,y1,y2)); + if( rx0>=rx1 || ry0>=ry1) return; + } + + u0 = PacketBuffer.U1[8]; v0 = PacketBuffer.U1[9]; + u1 = PacketBuffer.U1[16]; v1 = PacketBuffer.U1[17]; + u2 = PacketBuffer.U1[24]; v2 = PacketBuffer.U1[25]; + + r4 = s32(PacketBuffer.U1[0]); + g4 = s32(PacketBuffer.U1[1]); + b4 = s32(PacketBuffer.U1[2]); + dr4 = dg4 = db4 = 0; + + if (y0 >= y1) + { + if( y0!=y1 || x0>x1 ) + { + GPU_SWAP(x0, x1, temp); + GPU_SWAP(y0, y1, temp); + GPU_SWAP(u0, u1, temp); + GPU_SWAP(v0, v1, temp); + } + } + if (y1 >= y2) + { + if( y1!=y2 || x1>x2 ) + { + GPU_SWAP(x1, x2, temp); + GPU_SWAP(y1, y2, temp); + GPU_SWAP(u1, u2, temp); + GPU_SWAP(v1, v2, temp); + } + } + if (y0 >= y1) + { + if( y0!=y1 || x0>x1 ) + { + GPU_SWAP(x0, x1, temp); + GPU_SWAP(y0, y1, temp); + GPU_SWAP(u0, u1, temp); + GPU_SWAP(v0, v1, temp); + } + } + + ya = y2 - y0; + yb = y2 - y1; + dx = (x2 - x1) * ya - (x2 - x0) * yb; + du4 = (u2 - u1) * ya - (u2 - u0) * yb; + dv4 = (v2 - v1) * ya - (v2 - v0) * yb; + + s32 iF,iS; + xInv( dx, iF, iS); + du4 = xInvMulx( du4, iF, iS); + dv4 = xInvMulx( dv4, iF, iS); + tInc = ((u32)(du4<<7)&0x7fff0000) | ((u32)(dv4>>9)&0x00007fff); + tMsk = (TextureWindow[2]<<23) | (TextureWindow[3]<<7) | 0x00ff00ff; + + for (s32 loop0 = 2; loop0; --loop0) + { + if (loop0 == 2) + { + ya = y0; + yb = y1; + u3 = i2x(u0); + v3 = i2x(v0); + x3 = i2x(x0); + x4 = y0!=y1 ? x3 : i2x(x1); + if (dx < 0) + { + xInv( (y2 - y0), iF, iS); + dx3 = xInvMulx( (x2 - x0), iF, iS); + du3 = xInvMulx( (u2 - u0), iF, iS); + dv3 = xInvMulx( (v2 - v0), iF, iS); + dx4 = xLoDivx ( (x1 - x0), (y1 - y0)); + } + else + { + xInv( (y1 - y0), iF, iS); + dx3 = xInvMulx( (x1 - x0), iF, iS); + du3 = xInvMulx( (u1 - u0), iF, iS); + dv3 = xInvMulx( (v1 - v0), iF, iS); + dx4 = xLoDivx ( (x2 - x0), (y2 - y0)); + } + } + else + { + ya = y1; + yb = y2; + if (dx < 0) + { + temp = y1 - y0; + u3 = i2x(u0) + (du3 * temp); + v3 = i2x(v0) + (dv3 * temp); + x3 = i2x(x0) + (dx3 * temp); + x4 = i2x(x1); + dx4 = xLoDivx((x2 - x1), (y2 - y1)); + } + else + { + u3 = i2x(u1); + v3 = i2x(v1); + x3 = i2x(x1); + x4 = i2x(x0) + (dx4 * (y1 - y0)); + xInv( (y2 - y1), iF, iS); + dx3 = xInvMulx( (x2 - x1), iF, iS); + du3 = xInvMulx( (u2 - u1), iF, iS); + dv3 = xInvMulx( (v2 - v1), iF, iS); + } + } + + temp = ymin - ya; + if (temp > 0) + { + ya = ymin; + x3 += dx3*temp; + x4 += dx4*temp; + u3 += du3*temp; + v3 += dv3*temp; + } + if (yb > ymax) yb = ymax; + if (ya>=yb) continue; + + x3+= fixed_HALF; + x4+= fixed_HALF; + u3+= fixed_HALF; + v4+= fixed_HALF; + + u16* PixelBase = &((u16*)GPU_FrameBuffer)[FRAME_OFFSET(0, ya)]; + + for(;ya<yb;++ya, PixelBase += FRAME_WIDTH, x3+=dx3, x4+=dx4, u3+=du3, v3+=dv3) + { + if (ya&li) continue; + if ((ya&pi)==pif) continue; + xa = x2i(x3); + xb = x2i(x4); + if( (xa>xmax) || (xb<xmin) ) continue; + + temp = xmin - xa; + if(temp > 0) + { + xa = xmin; + u4 = u3 + du4*temp; + v4 = v3 + dv4*temp; + } + else + { + u4 = u3; + v4 = v3; + } + if(xb > xmax) xb = xmax; + xb-=xa; + if(xb>0) gpuPolySpanDriver(PixelBase + xa,xb); + } + } +} + +/*---------------------------------------------------------------------- +G3 +----------------------------------------------------------------------*/ + +void gpuDrawG3(const PP gpuPolySpanDriver) +{ + const int li=linesInterlace; + const int pi=(progressInterlace?(linesInterlace+1):0); + const int pif=(progressInterlace?(progressInterlace_flag?(linesInterlace+1):0):1); + s32 temp; + s32 xa, xb, xmin, xmax; + s32 ya, yb, ymin, ymax; + s32 x0, x1, x2, x3, dx3=0, x4, dx4=0, dx; + s32 y0, y1, y2; + s32 r0, r1, r2, r3, dr3=0; + s32 g0, g1, g2, g3, dg3=0; + s32 b0, b1, b2, b3, db3=0; + + x0 = GPU_EXPANDSIGN(PacketBuffer.S2[2] ); + y0 = GPU_EXPANDSIGN(PacketBuffer.S2[3] ); + x1 = GPU_EXPANDSIGN(PacketBuffer.S2[6] ); + y1 = GPU_EXPANDSIGN(PacketBuffer.S2[7] ); + x2 = GPU_EXPANDSIGN(PacketBuffer.S2[10]); + y2 = GPU_EXPANDSIGN(PacketBuffer.S2[11]); + + GPU_TESTRANGE3(); + + x0 += DrawingOffset[0]; x1 += DrawingOffset[0]; x2 += DrawingOffset[0]; + y0 += DrawingOffset[1]; y1 += DrawingOffset[1]; y2 += DrawingOffset[1]; + + xmin = DrawingArea[0]; xmax = DrawingArea[2]; + ymin = DrawingArea[1]; ymax = DrawingArea[3]; + + { + int rx0 = Max2(xmin,Min3(x0,x1,x2)); + int ry0 = Max2(ymin,Min3(y0,y1,y2)); + int rx1 = Min2(xmax,Max3(x0,x1,x2)); + int ry1 = Min2(ymax,Max3(y0,y1,y2)); + if( rx0>=rx1 || ry0>=ry1) return; + } + + r0 = PacketBuffer.U1[0]; g0 = PacketBuffer.U1[1]; b0 = PacketBuffer.U1[2]; + r1 = PacketBuffer.U1[8]; g1 = PacketBuffer.U1[9]; b1 = PacketBuffer.U1[10]; + r2 = PacketBuffer.U1[16]; g2 = PacketBuffer.U1[17]; b2 = PacketBuffer.U1[18]; + + if (y0 >= y1) + { + if( y0!=y1 || x0>x1 ) + { + GPU_SWAP(x0, x1, temp); GPU_SWAP(y0, y1, temp); + GPU_SWAP(r0, r1, temp); GPU_SWAP(g0, g1, temp); GPU_SWAP(b0, b1, temp); + } + } + if (y1 >= y2) + { + if( y1!=y2 || x1>x2 ) + { + GPU_SWAP(x1, x2, temp); GPU_SWAP(y1, y2, temp); + GPU_SWAP(r1, r2, temp); GPU_SWAP(g1, g2, temp); GPU_SWAP(b1, b2, temp); + } + } + if (y0 >= y1) + { + if( y0!=y1 || x0>x1 ) + { + GPU_SWAP(x0, x1, temp); GPU_SWAP(y0, y1, temp); + GPU_SWAP(r0, r1, temp); GPU_SWAP(g0, g1, temp); GPU_SWAP(b0, b1, temp); + } + } + + ya = y2 - y0; + yb = y2 - y1; + dx = (x2 - x1) * ya - (x2 - x0) * yb; + dr4 = (r2 - r1) * ya - (r2 - r0) * yb; + dg4 = (g2 - g1) * ya - (g2 - g0) * yb; + db4 = (b2 - b1) * ya - (b2 - b0) * yb; + + s32 iF,iS; + xInv( dx, iF, iS); + dr4 = xInvMulx( dr4, iF, iS); + dg4 = xInvMulx( dg4, iF, iS); + db4 = xInvMulx( db4, iF, iS); + u32 dr = (u32)(dr4<< 8)&(0xffffffff<<21); if(dr4<0) dr+= 1<<21; + u32 dg = (u32)(dg4>> 3)&(0xffffffff<<10); if(dg4<0) dg+= 1<<10; + u32 db = (u32)(db4>>14)&(0xffffffff ); if(db4<0) db+= 1<< 0; + lInc = db + dg + dr; + + for (s32 loop0 = 2; loop0; --loop0) + { + if (loop0 == 2) + { + ya = y0; + yb = y1; + r3 = i2x(r0); + g3 = i2x(g0); + b3 = i2x(b0); + x3 = i2x(x0); + x4 = y0!=y1 ? x3 : i2x(x1); + if (dx < 0) + { + xInv( (y2 - y0), iF, iS); + dx3 = xInvMulx( (x2 - x0), iF, iS); + dr3 = xInvMulx( (r2 - r0), iF, iS); + dg3 = xInvMulx( (g2 - g0), iF, iS); + db3 = xInvMulx( (b2 - b0), iF, iS); + dx4 = xLoDivx ( (x1 - x0), (y1 - y0)); + } + else + { + xInv( (y1 - y0), iF, iS); + dx3 = xInvMulx( (x1 - x0), iF, iS); + dr3 = xInvMulx( (r1 - r0), iF, iS); + dg3 = xInvMulx( (g1 - g0), iF, iS); + db3 = xInvMulx( (b1 - b0), iF, iS); + dx4 = xLoDivx ( (x2 - x0), (y2 - y0)); + } + } + else + { + ya = y1; + yb = y2; + if (dx < 0) + { + temp = y1 - y0; + r3 = i2x(r0) + (dr3 * temp); + g3 = i2x(g0) + (dg3 * temp); + b3 = i2x(b0) + (db3 * temp); + x3 = i2x(x0) + (dx3 * temp); + x4 = i2x(x1); + dx4 = xLoDivx((x2 - x1), (y2 - y1)); + } + else + { + r3 = i2x(r1); + g3 = i2x(g1); + b3 = i2x(b1); + x3 = i2x(x1); + x4 = i2x(x0) + (dx4 * (y1 - y0)); + + xInv( (y2 - y1), iF, iS); + dx3 = xInvMulx( (x2 - x1), iF, iS); + dr3 = xInvMulx( (r2 - r1), iF, iS); + dg3 = xInvMulx( (g2 - g1), iF, iS); + db3 = xInvMulx( (b2 - b1), iF, iS); + } + } + + temp = ymin - ya; + if (temp > 0) + { + ya = ymin; + x3 += dx3*temp; x4 += dx4*temp; + r3 += dr3*temp; g3 += dg3*temp; b3 += db3*temp; + } + if (yb > ymax) yb = ymax; + if (ya>=yb) continue; + + x3+= fixed_HALF; x4+= fixed_HALF; + r3+= fixed_HALF; g3+= fixed_HALF; b3+= fixed_HALF; + + u16* PixelBase = &((u16*)GPU_FrameBuffer)[FRAME_OFFSET(0, ya)]; + + for(;ya<yb;++ya, PixelBase += FRAME_WIDTH, x3+=dx3, x4+=dx4, r3+=dr3, g3+=dg3, b3+=db3) + { + if (ya&li) continue; + if ((ya&pi)==pif) continue; + xa = x2i(x3); + xb = x2i(x4); + if( (xa>xmax) || (xb<xmin) ) continue; + + temp = xmin - xa; + if(temp > 0) + { + xa = xmin; + r4 = r3 + dr4*temp; g4 = g3 + dg4*temp; b4 = b3 + db4*temp; + } + else + { + r4 = r3; g4 = g3; b4 = b3; + } + if(xb > xmax) xb = xmax; + xb-=xa; + if(xb>0) gpuPolySpanDriver(PixelBase + xa,xb); + } + } +} + +/*---------------------------------------------------------------------- +GT3 +----------------------------------------------------------------------*/ + +void gpuDrawGT3(const PP gpuPolySpanDriver) +{ + const int li=linesInterlace; + const int pi=(progressInterlace?(linesInterlace+1):0); + const int pif=(progressInterlace?(progressInterlace_flag?(linesInterlace+1):0):1); + s32 temp; + s32 xa, xb, xmin, xmax; + s32 ya, yb, ymin, ymax; + s32 x0, x1, x2, x3, dx3=0, x4, dx4=0, dx; + s32 y0, y1, y2; + s32 u0, u1, u2, u3, du3=0; + s32 v0, v1, v2, v3, dv3=0; + s32 r0, r1, r2, r3, dr3=0; + s32 g0, g1, g2, g3, dg3=0; + s32 b0, b1, b2, b3, db3=0; + + x0 = GPU_EXPANDSIGN(PacketBuffer.S2[2] ); + y0 = GPU_EXPANDSIGN(PacketBuffer.S2[3] ); + x1 = GPU_EXPANDSIGN(PacketBuffer.S2[8] ); + y1 = GPU_EXPANDSIGN(PacketBuffer.S2[9] ); + x2 = GPU_EXPANDSIGN(PacketBuffer.S2[14]); + y2 = GPU_EXPANDSIGN(PacketBuffer.S2[15]); + + GPU_TESTRANGE3(); + + x0 += DrawingOffset[0]; x1 += DrawingOffset[0]; x2 += DrawingOffset[0]; + y0 += DrawingOffset[1]; y1 += DrawingOffset[1]; y2 += DrawingOffset[1]; + + xmin = DrawingArea[0]; xmax = DrawingArea[2]; + ymin = DrawingArea[1]; ymax = DrawingArea[3]; + + { + int rx0 = Max2(xmin,Min3(x0,x1,x2)); + int ry0 = Max2(ymin,Min3(y0,y1,y2)); + int rx1 = Min2(xmax,Max3(x0,x1,x2)); + int ry1 = Min2(ymax,Max3(y0,y1,y2)); + if( rx0>=rx1 || ry0>=ry1) return; + } + + r0 = PacketBuffer.U1[0]; g0 = PacketBuffer.U1[1]; b0 = PacketBuffer.U1[2]; + u0 = PacketBuffer.U1[8]; v0 = PacketBuffer.U1[9]; + r1 = PacketBuffer.U1[12]; g1 = PacketBuffer.U1[13]; b1 = PacketBuffer.U1[14]; + u1 = PacketBuffer.U1[20]; v1 = PacketBuffer.U1[21]; + r2 = PacketBuffer.U1[24]; g2 = PacketBuffer.U1[25]; b2 = PacketBuffer.U1[26]; + u2 = PacketBuffer.U1[32]; v2 = PacketBuffer.U1[33]; + + if (y0 >= y1) + { + if( y0!=y1 || x0>x1 ) + { + GPU_SWAP(x0, x1, temp); GPU_SWAP(y0, y1, temp); + GPU_SWAP(u0, u1, temp); GPU_SWAP(v0, v1, temp); + GPU_SWAP(r0, r1, temp); GPU_SWAP(g0, g1, temp); GPU_SWAP(b0, b1, temp); + } + } + if (y1 >= y2) + { + if( y1!=y2 || x1>x2 ) + { + GPU_SWAP(x1, x2, temp); GPU_SWAP(y1, y2, temp); + GPU_SWAP(u1, u2, temp); GPU_SWAP(v1, v2, temp); + GPU_SWAP(r1, r2, temp); GPU_SWAP(g1, g2, temp); GPU_SWAP(b1, b2, temp); + } + } + if (y0 >= y1) + { + if( y0!=y1 || x0>x1 ) + { + GPU_SWAP(x0, x1, temp); GPU_SWAP(y0, y1, temp); + GPU_SWAP(u0, u1, temp); GPU_SWAP(v0, v1, temp); + GPU_SWAP(r0, r1, temp); GPU_SWAP(g0, g1, temp); GPU_SWAP(b0, b1, temp); + } + } + + ya = y2 - y0; + yb = y2 - y1; + dx = (x2 - x1) * ya - (x2 - x0) * yb; + du4 = (u2 - u1) * ya - (u2 - u0) * yb; + dv4 = (v2 - v1) * ya - (v2 - v0) * yb; + dr4 = (r2 - r1) * ya - (r2 - r0) * yb; + dg4 = (g2 - g1) * ya - (g2 - g0) * yb; + db4 = (b2 - b1) * ya - (b2 - b0) * yb; + + s32 iF,iS; + + xInv( dx, iF, iS); + du4 = xInvMulx( du4, iF, iS); + dv4 = xInvMulx( dv4, iF, iS); + dr4 = xInvMulx( dr4, iF, iS); + dg4 = xInvMulx( dg4, iF, iS); + db4 = xInvMulx( db4, iF, iS); + u32 dr = (u32)(dr4<< 8)&(0xffffffff<<21); if(dr4<0) dr+= 1<<21; + u32 dg = (u32)(dg4>> 3)&(0xffffffff<<10); if(dg4<0) dg+= 1<<10; + u32 db = (u32)(db4>>14)&(0xffffffff ); if(db4<0) db+= 1<< 0; + lInc = db + dg + dr; + tInc = ((u32)(du4<<7)&0x7fff0000) | ((u32)(dv4>>9)&0x00007fff); + tMsk = (TextureWindow[2]<<23) | (TextureWindow[3]<<7) | 0x00ff00ff; + + for (s32 loop0 = 2; loop0; --loop0) + { + if (loop0 == 2) + { + ya = y0; + yb = y1; + u3 = i2x(u0); + v3 = i2x(v0); + r3 = i2x(r0); + g3 = i2x(g0); + b3 = i2x(b0); + x3 = i2x(x0); + x4 = y0!=y1 ? x3 : i2x(x1); + if (dx < 0) + { + xInv( (y2 - y0), iF, iS); + dx3 = xInvMulx( (x2 - x0), iF, iS); + du3 = xInvMulx( (u2 - u0), iF, iS); + dv3 = xInvMulx( (v2 - v0), iF, iS); + dr3 = xInvMulx( (r2 - r0), iF, iS); + dg3 = xInvMulx( (g2 - g0), iF, iS); + db3 = xInvMulx( (b2 - b0), iF, iS); + dx4 = xLoDivx ( (x1 - x0), (y1 - y0)); + } + else + { + xInv( (y1 - y0), iF, iS); + dx3 = xInvMulx( (x1 - x0), iF, iS); + du3 = xInvMulx( (u1 - u0), iF, iS); + dv3 = xInvMulx( (v1 - v0), iF, iS); + dr3 = xInvMulx( (r1 - r0), iF, iS); + dg3 = xInvMulx( (g1 - g0), iF, iS); + db3 = xInvMulx( (b1 - b0), iF, iS); + dx4 = xLoDivx ( (x2 - x0), (y2 - y0)); + } + } + else + { + ya = y1; + yb = y2; + if (dx < 0) + { + temp = y1 - y0; + u3 = i2x(u0) + (du3 * temp); + v3 = i2x(v0) + (dv3 * temp); + r3 = i2x(r0) + (dr3 * temp); + g3 = i2x(g0) + (dg3 * temp); + b3 = i2x(b0) + (db3 * temp); + x3 = i2x(x0) + (dx3 * temp); + x4 = i2x(x1); + dx4 = xLoDivx((x2 - x1), (y2 - y1)); + } + else + { + u3 = i2x(u1); + v3 = i2x(v1); + r3 = i2x(r1); + g3 = i2x(g1); + b3 = i2x(b1); + x3 = i2x(x1); + x4 = i2x(x0) + (dx4 * (y1 - y0)); + + xInv( (y2 - y1), iF, iS); + dx3 = xInvMulx( (x2 - x1), iF, iS); + du3 = xInvMulx( (u2 - u1), iF, iS); + dv3 = xInvMulx( (v2 - v1), iF, iS); + dr3 = xInvMulx( (r2 - r1), iF, iS); + dg3 = xInvMulx( (g2 - g1), iF, iS); + db3 = xInvMulx( (b2 - b1), iF, iS); + } + } + + temp = ymin - ya; + if (temp > 0) + { + ya = ymin; + x3 += dx3*temp; x4 += dx4*temp; + u3 += du3*temp; v3 += dv3*temp; + r3 += dr3*temp; g3 += dg3*temp; b3 += db3*temp; + } + if (yb > ymax) yb = ymax; + if (ya>=yb) continue; + + x3+= fixed_HALF; x4+= fixed_HALF; + u3+= fixed_HALF; v4+= fixed_HALF; + r3+= fixed_HALF; g3+= fixed_HALF; b3+= fixed_HALF; + u16* PixelBase = &((u16*)GPU_FrameBuffer)[FRAME_OFFSET(0, ya)]; + + for(;ya<yb;++ya, PixelBase += FRAME_WIDTH, x3+=dx3, x4+=dx4, u3+=du3, v3+=dv3, r3+=dr3, g3+=dg3, b3+=db3) + { + if (ya&li) continue; + if ((ya&pi)==pif) continue; + xa = x2i(x3); + xb = x2i(x4); + if( (xa>xmax) || (xb<xmin)) continue; + + temp = xmin - xa; + if(temp > 0) + { + xa = xmin; + u4 = u3 + du4*temp; v4 = v3 + dv4*temp; + r4 = r3 + dr4*temp; g4 = g3 + dg4*temp; b4 = b3 + db4*temp; + } + else + { + u4 = u3; v4 = v3; + r4 = r3; g4 = g3; b4 = b3; + } + if(xb > xmax) xb = xmax; + xb-=xa; + if(xb>0) gpuPolySpanDriver(PixelBase + xa,xb); + } + } +} + + +////////////////////////////////////////////////////////////////////////// +//senquack - Original Unai poly routines left here for reference: +// ( from gpu_inner.h ) NOTE: this uses 16.16, not 22.10 fixed point +////////////////////////////////////////////////////////////////////////// +template<const int CF> +INLINE void gpuPolySpanFn(u16 *pDst, u32 count) +{ + if (!TM) + { + // NO TEXTURE + if (!G) + { + // NO GOURAUD + u16 data; + if (L) { u32 lCol=((u32)(b4<< 2)&(0x03ff)) | ((u32)(g4<<13)&(0x07ff<<10)) | ((u32)(r4<<24)&(0x07ff<<21)); gpuLightingRGB(data,lCol); } + else data=PixelData; + if ((!M)&&(!B)) + { + if (MB) { data = data | 0x8000; } + do { *pDst++ = data; } while (--count); + } + else if ((M)&&(!B)) + { + if (MB) { data = data | 0x8000; } + do { if (!(*pDst&0x8000)) { *pDst = data; } pDst++; } while (--count); + } + else + { + u16 uSrc; + u16 uDst; + u32 uMsk; if (BM==0) uMsk=0x7BDE; + u32 bMsk; if (BI) bMsk=blit_mask; + do + { + // blit-mask + if (BI) { if((bMsk>>((((u32)pDst)>>1)&7))&1) goto endtile; } + // masking + uDst = *pDst; + if(M) { if (uDst&0x8000) goto endtile; } + uSrc = data; + // blend + if (BM==0) gpuBlending00(uSrc, uDst); + if (BM==1) gpuBlending01(uSrc, uDst); + if (BM==2) gpuBlending02(uSrc, uDst); + if (BM==3) gpuBlending03(uSrc, uDst); + if (MB) { *pDst = uSrc | 0x8000; } + else { *pDst = uSrc; } + endtile: pDst++; + } + while (--count); + } + } + else + { + // GOURAUD + u16 uDst; + u16 uSrc; + u32 linc=lInc; + u32 lCol=((u32)(b4>>14)&(0x03ff)) | ((u32)(g4>>3)&(0x07ff<<10)) | ((u32)(r4<<8)&(0x07ff<<21)); + u32 uMsk; if ((B)&&(BM==0)) uMsk=0x7BDE; + u32 bMsk; if (BI) bMsk=blit_mask; + do + { + // blit-mask + if (BI) { if((bMsk>>((((u32)pDst)>>1)&7))&1) goto endgou; } + // masking + if(M) { uDst = *pDst; if (uDst&0x8000) goto endgou; } + // blend + if(B) + { + // light + gpuLightingRGB(uSrc,lCol); + if(!M) { uDst = *pDst; } + if (BM==0) gpuBlending00(uSrc, uDst); + if (BM==1) gpuBlending01(uSrc, uDst); + if (BM==2) gpuBlending02(uSrc, uDst); + if (BM==3) gpuBlending03(uSrc, uDst); + } + else + { + // light + gpuLightingRGB(uSrc,lCol); + } + if (MB) { *pDst = uSrc | 0x8000; } + else { *pDst = uSrc; } + endgou: pDst++; lCol=(lCol+linc); + } + while (--count); + } + } + else + { + // TEXTURE + u16 uDst; + u16 uSrc; + u32 linc; if (L&&G) linc=lInc; + u32 tinc=tInc; + u32 tmsk=tMsk; + u32 tCor = ((u32)( u4<<7)&0x7fff0000) | ((u32)( v4>>9)&0x00007fff); tCor&= tmsk; + const u16* _TBA=TBA; + const u16* _CBA; if (TM!=3) _CBA=CBA; + u32 lCol; + if(L && !G) { lCol = ((u32)(b4<< 2)&(0x03ff)) | ((u32)(g4<<13)&(0x07ff<<10)) | ((u32)(r4<<24)&(0x07ff<<21)); } + else if(L && G) { lCol = ((u32)(b4>>14)&(0x03ff)) | ((u32)(g4>>3)&(0x07ff<<10)) | ((u32)(r4<<8)&(0x07ff<<21)); } + u32 uMsk; if ((B)&&(BM==0)) uMsk=0x7BDE; + u32 bMsk; if (BI) bMsk=blit_mask; + do + { + // blit-mask + if (BI) { if((bMsk>>((((u32)pDst)>>1)&7))&1) goto endpoly; } + // masking + if(M) { uDst = *pDst; if (uDst&0x8000) goto endpoly; } + // texture + if (TM==1) { u32 tu=(tCor>>23); u32 tv=(tCor<<4)&(0xff<<11); u8 rgb=((u8*)_TBA)[tv+(tu>>1)]; uSrc=_CBA[(rgb>>((tu&1)<<2))&0xf]; if(!uSrc) goto endpoly; } + if (TM==2) { uSrc = _CBA[(((u8*)_TBA)[(tCor>>23)+((tCor<<4)&(0xff<<11))])]; if(!uSrc) goto endpoly; } + if (TM==3) { uSrc = _TBA[(tCor>>23)+((tCor<<3)&(0xff<<10))]; if(!uSrc) goto endpoly; } + // blend + if(B) + { + if (uSrc&0x8000) + { + // light + if(L) gpuLightingTXT(uSrc, lCol); + if(!M) { uDst = *pDst; } + if (BM==0) gpuBlending00(uSrc, uDst); + if (BM==1) gpuBlending01(uSrc, uDst); + if (BM==2) gpuBlending02(uSrc, uDst); + if (BM==3) gpuBlending03(uSrc, uDst); + } + else + { + // light + if(L) gpuLightingTXT(uSrc, lCol); + } + } + else + { + // light + if(L) { gpuLightingTXT(uSrc, lCol); } else if(!MB) { uSrc&= 0x7fff; } + } + if (MB) { *pDst = uSrc | 0x8000; } + else { *pDst = uSrc; } + endpoly: pDst++; + tCor=(tCor+tinc)&tmsk; + if (L&&G) lCol=(lCol+linc); + } + while (--count); + } +} |