+++ /dev/null
-//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);
- }
-}
notaz.gp2x.de / pcsx_rearmed.git / blobdiff