/*************************************************************************** * Copyright (C) 2010 PCSX4ALL Team * * Copyright (C) 2010 Unai * * * * This program is free software; you can redistribute it and/or modify * * it under the terms of the GNU General Public License as published by * * the Free Software Foundation; either version 2 of the License, or * * (at your option) any later version. * * * * This program is distributed in the hope that it will be useful, * * but WITHOUT ANY WARRANTY; without even the implied warranty of * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * * GNU General Public License for more details. * * * * You should have received a copy of the GNU General Public License * * along with this program; if not, write to the * * Free Software Foundation, Inc., * * 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA. * ***************************************************************************/ #define GPU_TESTRANGE(x) { if((u32)(x+1024) > 2047) return; } /////////////////////////////////////////////////////////////////////////////// // GPU internal line drawing functions #define GPU_DIGITS 16 #define GPU_DIGITSC (GPU_DIGITS+3) INLINE s32 GPU_DIV(s32 rs, s32 rt) { return rt ? (rs / rt) : (0); } /////////////////////////////////////////////////////////////////////////////// void gpuDrawLF(const PD gpuPixelDriver) { s32 temp; s32 xmin, xmax; s32 ymin, ymax; s32 x0, x1, dx; s32 y0, y1, dy; x0 = PacketBuffer.S2[2] + DrawingOffset[0]; GPU_TESTRANGE(x0); y0 = PacketBuffer.S2[3] + DrawingOffset[1]; GPU_TESTRANGE(y0); x1 = PacketBuffer.S2[4] + DrawingOffset[0]; GPU_TESTRANGE(x1); y1 = PacketBuffer.S2[5] + DrawingOffset[1]; GPU_TESTRANGE(y1); xmin = DrawingArea[0]; xmax = DrawingArea[2]; ymin = DrawingArea[1]; ymax = DrawingArea[3]; const u16 pixeldata = GPU_RGB16(PacketBuffer.U4[0]); dy = (y1 - y0); if (dy < 0) dy = -dy; dx = (x1 - x0); if (dx < 0) dx = -dx; if (dx > dy) { if (x0 > x1) { GPU_SWAP(x0, x1, temp); GPU_SWAP(y0, y1, temp); } y1 = GPU_DIV((y1 - y0) << GPU_DIGITS, dx); y0 <<= GPU_DIGITS; temp = xmin - x0; if (temp > 0) { x0 = xmin; y0 += (y1 * temp); } if (x1 > xmax) x1 = xmax; x1 -= x0; if (x1 < 0) x1 = 0; const int li=linesInterlace; for (; x1; x1--) { temp = y0 >> GPU_DIGITS; if( 0 == (temp&li) ) { if ((u32) (temp - ymin) < (u32) (ymax - ymin)) { gpuPixelDriver(&((u16*)GPU_FrameBuffer)[FRAME_OFFSET(x0, temp)],pixeldata); } } x0++; y0 += y1; } } else if (dy) { if (y0 > y1) { GPU_SWAP(x0, x1, temp); GPU_SWAP(y0, y1, temp); } x1 = GPU_DIV((x1 - x0) << GPU_DIGITS, dy); x0 <<= GPU_DIGITS; temp = ymin - y0; if (temp > 0) { y0 = ymin; x0 += (x1 * temp); } if (y1 > ymax) y1 = ymax; y1 -= y0; if (y1 < 0) y1 = 0; const int li=linesInterlace; for (; y1; y1--) { if( 0 == (y0&li) ) { temp = x0 >> GPU_DIGITS; if ((u32) (temp - xmin) < (u32) (xmax - xmin)) { gpuPixelDriver(&((u16*)GPU_FrameBuffer)[FRAME_OFFSET(temp, y0)],pixeldata); } } y0++; x0 += x1; } } else { if( 0 == (y0&linesInterlace) ) { if ((u32) (x0 - xmin) < (u32) (xmax - xmin)) { if ((u32) (y0 - ymin) < (u32) (ymax - ymin)) { gpuPixelDriver(&((u16*)GPU_FrameBuffer)[FRAME_OFFSET(x0, y0)],pixeldata); } } } } } /*---------------------------------------------------------------------- GF ----------------------------------------------------------------------*/ /////////////////////////////////////////////////////////////////////////////// void gpuDrawLG(const PD gpuPixelDriver) { s32 temp; s32 xmin, xmax; s32 ymin, ymax; s32 x0, x1, dx; s32 y0, y1, dy; s32 r0, r1; s32 g0, g1; s32 b0, b1; x0 = PacketBuffer.S2[2] + DrawingOffset[0]; GPU_TESTRANGE(x0); y0 = PacketBuffer.S2[3] + DrawingOffset[1]; GPU_TESTRANGE(y0); x1 = PacketBuffer.S2[6] + DrawingOffset[0]; GPU_TESTRANGE(x1); y1 = PacketBuffer.S2[7] + DrawingOffset[1]; GPU_TESTRANGE(y1); r0 = PacketBuffer.U1[0]; g0 = PacketBuffer.U1[1]; b0 = PacketBuffer.U1[2]; r1 = PacketBuffer.U1[8]; g1 = PacketBuffer.U1[9]; b1 = PacketBuffer.U1[10]; xmin = DrawingArea[0]; xmax = DrawingArea[2]; ymin = DrawingArea[1]; ymax = DrawingArea[3]; dy = (y1 - y0); if (dy < 0) dy = -dy; dx = (x1 - x0); if (dx < 0) dx = -dx; if (dx > dy) { if (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); } y1 = GPU_DIV((y1 - y0) << GPU_DIGITS, dx); r1 = GPU_DIV((r1 - r0) << GPU_DIGITS, dx); g1 = GPU_DIV((g1 - g0) << GPU_DIGITS, dx); b1 = GPU_DIV((b1 - b0) << GPU_DIGITS, dx); y0 <<= GPU_DIGITS; r0 <<= GPU_DIGITS; g0 <<= GPU_DIGITS; b0 <<= GPU_DIGITS; temp = xmin - x0; if (temp > 0) { x0 = xmin; y0 += (y1 * temp); r0 += (r1 * temp); g0 += (g1 * temp); b0 += (b1 * temp); } if (x1 > xmax) x1 = xmax; x1 -= x0; if (x1 < 0) x1 = 0; const int li=linesInterlace; for (; x1; x1--) { temp = y0 >> GPU_DIGITS; if( 0 == (temp&li) ) { if ((u32) (temp - ymin) < (u32) (ymax - ymin)) { gpuPixelDriver ( &((u16*)GPU_FrameBuffer)[FRAME_OFFSET(x0, temp)], (((b0>>GPU_DIGITSC)&0x1F)<<10) | (((g0>>GPU_DIGITSC)&0x1F)<< 5) | ((r0>>GPU_DIGITSC)&0x1F) ); } } x0++; y0 += y1; r0 += r1; g0 += g1; b0 += b1; } } else if (dy) { if (y0 > y1) { 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); } x1 = GPU_DIV((x1 - x0) << GPU_DIGITS, dy); r1 = GPU_DIV((r1 - r0) << GPU_DIGITS, dy); g1 = GPU_DIV((g1 - g0) << GPU_DIGITS, dy); b1 = GPU_DIV((b1 - b0) << GPU_DIGITS, dy); x0 <<= GPU_DIGITS; r0 <<= GPU_DIGITS; g0 <<= GPU_DIGITS; b0 <<= GPU_DIGITS; temp = ymin - y0; if (temp > 0) { y0 = ymin; x0 += (x1 * temp); r0 += (r1 * temp); g0 += (g1 * temp); b0 += (b1 * temp); } if (y1 > ymax) y1 = ymax; y1 -= y0; if (y1 < 0) y1 = 0; const int li=linesInterlace; for (; y1; y1--) { if( 0 == (y0&li) ) { temp = x0 >> GPU_DIGITS; if ((u32) (temp - xmin) < (u32) (xmax - xmin)) { gpuPixelDriver ( &((u16*)GPU_FrameBuffer)[FRAME_OFFSET(temp, y0)], (((b0>>GPU_DIGITSC)&0x1F)<<10) | (((g0>>GPU_DIGITSC)&0x1F)<< 5) | ((r0>>GPU_DIGITSC)&0x1F) ); } } y0++; x0 += x1; r0 += r1; g0 += g1; b0 += b1; } } else { if( 0 == (y0&linesInterlace) ) { if ((u32) (x0 - xmin) < (u32) (xmax - xmin)) { if ((u32) (y0 - ymin) < (u32) (ymax - ymin)) { gpuPixelDriver ( &((u16*)GPU_FrameBuffer)[FRAME_OFFSET(x0, y0)], (((b0>>GPU_DIGITSC)&0x1F)<<10) | (((g0>>GPU_DIGITSC)&0x1F)<< 5) | ((r0>>GPU_DIGITSC)&0x1F) ); } } } } }