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https://github.com/libretro/scummvm.git
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791 lines
16 KiB
C++
791 lines
16 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2001 Ludvig Strigeus
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* Change Log:
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* $Log$
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* Revision 1.6 2001/10/26 17:34:50 strigeus
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* bug fixes, code cleanup
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*
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* Revision 1.5 2001/10/23 19:51:50 strigeus
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* recompile not needed when switching games
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* debugger skeleton implemented
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*
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* Revision 1.4 2001/10/16 20:31:27 strigeus
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* misc fixes
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*
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* Revision 1.3 2001/10/16 10:01:45 strigeus
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* preliminary DOTT support
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*
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* Revision 1.2 2001/10/09 18:35:02 strigeus
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* fixed object parent bug
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* fixed some signed/unsigned comparisons
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*
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* Revision 1.1.1.1 2001/10/09 14:30:14 strigeus
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*
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* initial revision
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*
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*
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*/
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#include "stdafx.h"
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#include "scumm.h"
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const byte revBitMask[8] = {0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01};
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void CostumeRenderer::ignorePakCols(int a) {
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int n;
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n = _height;
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if (a>1) n *= a;
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do {
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_repcolor = *_srcptr++;
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_replen = _repcolor&_maskval;
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if (_replen==0) {
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_replen = *_srcptr++;
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}
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do {
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if (!--n) {
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_repcolor >>= _shrval;
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return;
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}
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} while (--_replen);
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} while (1);
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}
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const byte cost_scaleTable[256] = {
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255, 253, 125, 189, 61, 221, 93, 157, 29, 237,
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109, 173, 45, 205, 77, 141, 13, 245, 117, 181,
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53, 213, 85, 149, 21, 229, 101, 165, 37, 197, 69,
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133, 5, 249, 121, 185, 57, 217, 89, 153, 25, 233,
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105, 169, 41, 201, 73, 137, 9, 241, 113, 177, 49,
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209, 81, 145, 17, 225, 97, 161, 33, 193, 65, 129,
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1, 251, 123, 187, 59, 219, 91, 155, 27, 235, 107,
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171, 43, 203, 75, 139, 11, 243, 115, 179, 51, 211,
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83, 147, 19, 227, 99, 163, 35, 195, 67, 131, 3,
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247, 119, 183, 55, 215, 87, 151, 23, 231, 103,
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167, 39, 199, 71, 135, 7, 239, 111, 175, 47, 207,
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79, 143, 15, 223, 95, 159, 31, 191, 63, 127, 0,
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128, 64, 192, 32, 160, 96, 224, 16, 144, 80, 208,
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48, 176, 112, 240, 8, 136, 72, 200, 40, 168, 104,
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232, 24, 152, 88, 216, 56, 184, 120, 248, 4, 132,
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68, 196, 36, 164, 100, 228, 20, 148, 84, 212, 52,
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180, 116, 244, 12, 140, 76, 204, 44, 172, 108,
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236, 28, 156, 92, 220, 60, 188, 124, 252, 2, 130,
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66, 194, 34, 162, 98, 226, 18, 146, 82, 210, 50,
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178, 114, 242, 10, 138, 74, 202, 42, 170, 106,
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234, 26, 154, 90, 218, 58, 186, 122, 250, 6, 134,
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70, 198, 38, 166, 102, 230, 22, 150, 86, 214, 54,
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182, 118, 246, 14, 142, 78, 206, 46, 174, 110,
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238, 30, 158, 94, 222, 62, 190, 126, 254
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};
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byte CostumeRenderer::mainRoutine(Actor *a, int slot, int frame) {
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int xmove, ymove, i,b,s;
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uint scal;
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byte scaling;
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byte charsetmask, masking;
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byte unk19;
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int ex1,ex2;
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CHECK_HEAP
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_maskval = 0xF;
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_shrval = 4;
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if (_numColors == 32) {
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_maskval = 7;
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_shrval = 3;
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}
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_width2 = _srcptr[0];
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_width = _width2;
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_height2 = _srcptr[2];
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_height = _height2;
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xmove = (int16)READ_LE_UINT16(_srcptr+4) + _xmove;
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ymove = (int16)READ_LE_UINT16(_srcptr+6) + _ymove;
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_xmove += (int16)READ_LE_UINT16(_srcptr+8);
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_ymove -= (int16)READ_LE_UINT16(_srcptr+10);
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_srcptr += 12;
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switch(_ptr[7]&0x7F) {
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case 0x60: case 0x61:
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ex1 = _srcptr[0];
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ex2 = _srcptr[1];
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_srcptr += 2;
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if (ex1!=0xFF || ex2!=0xFF) {
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ex1=READ_LE_UINT16(_ptr + _numColors + 10 + ex1*2);
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_srcptr = _ptr + READ_LE_UINT16(_ptr + ex1 + ex2*2) + 14;
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}
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}
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_xpos = _actorX;
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_ypos = _actorY;
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scaling = _scaleX==255 && _scaleY==255 ? 0 : 1;
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s = 0;
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if (scaling) {
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_scaleIndexXStep = -1;
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if (xmove < 0) {
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xmove = -xmove;
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_scaleIndexXStep = 1;
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}
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if(_mirror) {
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unk19 = _scaleIndexX = 128 - xmove;
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for (i=0; i<xmove; i++) {
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scal = cost_scaleTable[_scaleIndexX++];
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if (scal < _scaleX)
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_xpos -= _scaleIndexXStep;
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}
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_right = _left = _xpos;
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_scaleIndexX = unk19;
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for (i=0; i<_width; i++) {
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if (_right < 0) {
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s++;
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unk19 = _scaleIndexX;
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}
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scal = cost_scaleTable[_scaleIndexX++];
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if (scal < _scaleX)
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_right++;
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}
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} else {
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unk19 = _scaleIndexX = xmove + 128;
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for (i=0; i<xmove; i++) {
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scal = cost_scaleTable[_scaleIndexX--];
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if (scal < _scaleX)
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_xpos += _scaleIndexXStep;
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}
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_right = _left = _xpos;
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_scaleIndexX = unk19;
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for (i=0; i<_width; i++) {
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if (_left > 319) {
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s++;
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unk19 = _scaleIndexX;
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}
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scal = cost_scaleTable[_scaleIndexX--];
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if(scal < _scaleX)
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_left--;
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}
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}
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_scaleIndexX = unk19;
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if (s)
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s--;
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_scaleIndexYStep = -1;
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if (ymove < 0) {
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ymove = -ymove;
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_scaleIndexYStep = 1;
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}
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_scaleIndexY = 128 - ymove;
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for (i=0; i<ymove; i++) {
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scal = cost_scaleTable[_scaleIndexY++];
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if (scal < _scaleY)
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_ypos -= _scaleIndexYStep;
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}
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_top = _bottom = _ypos;
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_scaleIndexY = 128 - ymove;
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for (i=0; i<_height; i++) {
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scal = cost_scaleTable[_scaleIndexY++];
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if (scal < _scaleY)
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_bottom++;
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}
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_scaleIndexY = _scaleIndexYTop = 128 - ymove;
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} else {
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if(_mirror==0)
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xmove = -xmove;
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_xpos += xmove;
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_ypos += ymove;
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if (_mirror) {
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_left = _xpos;
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_right = _xpos + _width;
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} else {
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_left = _xpos - _width;
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_right = _xpos;
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}
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_top = _ypos;
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_bottom = _top + _height;
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}
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_scaleIndexXStep = -1;
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if (_mirror)
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_scaleIndexXStep = 1;
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_ypostop = _ypos;
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_vscreenheight = _vm->virtscr[0].height;
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_vm->updateDirtyRect(0, _left, _right+1,_top,_bottom,1<<a->number);
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if (_top >= (int)_vscreenheight || _bottom <= 0)
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return 0;
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_ypitch = _height * 320;
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_docontinue = 0;
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b = 1;
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if (_left > 319 || _right <= 0)
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return 0;
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if (_mirror) {
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_ypitch--;
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if (scaling==0) {
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s = -_xpos;
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}
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if (s > 0) {
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_width2 -= s;
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ignorePakCols(s);
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_xpos = 0;
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_docontinue = 1;
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} else {
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s = _right - 320;
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if (s<=0) {
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b = 2;
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} else {
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_width2 -= s;
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}
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}
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} else {
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_ypitch++;
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if(scaling==0)
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s = _right - 320;
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if (s > 0) {
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_width2 -= s;
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ignorePakCols(s);
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_xpos = 319;
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_docontinue = 1;
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} else {
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s = -1 - _left;
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if (s <= 0)
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b = 2;
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else
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_width2 -= s;
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}
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}
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if (_width2==0)
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return 0;
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if ((uint)_top > (uint)_vscreenheight)
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_top = 0;
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if ((uint)_bottom > _vscreenheight)
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_bottom = _vscreenheight;
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if (a->top > _top)
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a->top = _top;
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if (a->bottom < _bottom)
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a->bottom = _bottom;
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if (_height2 + _top >= 256) {
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CHECK_HEAP
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return 2;
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}
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_bgbak_ptr = _vm->getResourceAddress(0xA, 5) + _vm->virtscr[0].xstart + _ypos*320 + _xpos;
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_backbuff_ptr = _vm->getResourceAddress(0xA, 1) + _vm->virtscr[0].xstart + _ypos*320 + _xpos;
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charsetmask = _vm->hasCharsetMask(_left, _top + _vm->virtscr[0].topline, _right, _vm->virtscr[0].topline + _bottom);
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masking = 0;
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if (_zbuf) {
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masking = _vm->isMaskActiveAt(_left, _top, _right, _bottom,
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_vm->getResourceAddress(0xA, 9) + _vm->gdi._imgBufOffs[_zbuf] + _vm->_screenStartStrip
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);
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}
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if (_zbuf || charsetmask) {
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_mask_ptr = _vm->getResourceAddress(0xA, 9) + _ypos*40 + _vm->_screenStartStrip;
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_imgbufoffs = _vm->gdi._imgBufOffs[_zbuf];
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if (!charsetmask && _zbuf!=0)
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_mask_ptr += _imgbufoffs;
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_mask_ptr_dest = _mask_ptr + _xpos / 8;
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}
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CHECK_HEAP
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switch ((scaling<<2)|(masking<<1)|charsetmask) {
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case 0:
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proc6();
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break;
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case 1: case 2:
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proc5();
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break;
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case 3:
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proc4();
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break;
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case 4:
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proc1();
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break;
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case 5:case 6:
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proc2();
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break;
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case 7:
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proc3();
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break;
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}
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CHECK_HEAP
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return b;
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}
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void CostumeRenderer::proc6() {
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byte len;
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byte *src, *dst;
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byte width,height,pcolor;
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int color;
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uint y;
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uint scrheight;
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y = _ypos;
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len = _replen;
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src = _srcptr;
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dst = _backbuff_ptr;
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color = _repcolor;
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scrheight = _vscreenheight;
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width = _width2;
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height = _height2;
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if (_docontinue) goto StartPos;
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do {
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len = *src++;
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color = len>>_shrval;
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len &= _maskval;
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if (!len) len = *src++;
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do {
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if (color && y < scrheight) {
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pcolor = _palette[color];
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if (pcolor==13) {
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pcolor = _transEffect[*dst];
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}
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*dst = pcolor;
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}
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dst += 320;
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y++;
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if (!--height) {
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if (!--width)
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return;
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height = _height;
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dst -= _ypitch;
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y = _ypostop;
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}
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StartPos:;
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} while (--len);
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} while (1);
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}
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void CostumeRenderer::proc5() {
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byte *mask,*src,*dst;
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byte maskbit,len,height,pcolor;
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uint y,scrheight;
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int color;
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mask = _mask_ptr = _mask_ptr_dest;
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maskbit = revBitMask[_xpos&7];
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y = _ypos;
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src = _srcptr;
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dst = _backbuff_ptr;
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len = _replen;
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color = _repcolor;
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scrheight = _vscreenheight;
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height = _height2;
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if (_docontinue) goto StartPos;
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do {
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len = *src++;
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color = len>>_shrval;
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len &= _maskval;
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if (!len) len = *src++;
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do {
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if (color && y<scrheight && !(*mask&maskbit)) {
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pcolor = _palette[color];
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if (pcolor==13)
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pcolor = _transEffect[*dst];
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*dst = pcolor;
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}
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dst += 320;
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y++;
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mask += 40;
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if (!--height) {
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if(!--_width2)
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return;
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height = _height;
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dst -= _ypitch;
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y = _ypostop;
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if(_scaleIndexXStep!=1) {
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maskbit<<=1;
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if (!maskbit) {
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maskbit=1;
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_mask_ptr--;
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}
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} else {
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maskbit>>=1;
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if (!maskbit) {
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maskbit=0x80;
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_mask_ptr++;
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}
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}
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mask = _mask_ptr;
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}
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StartPos:;
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} while (--len);
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} while(1);
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}
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void CostumeRenderer::proc4() {
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byte *mask,*src,*dst;
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byte maskbit,len,height,pcolor;
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uint y,scrheight;
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int color;
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mask = _mask_ptr = _mask_ptr_dest;
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maskbit = revBitMask[_xpos&7];
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y = _ypos;
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src = _srcptr;
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dst = _backbuff_ptr;
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len = _replen;
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color = _repcolor;
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scrheight = _vscreenheight;
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height = _height2;
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if (_docontinue) goto StartPos;
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do {
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len = *src++;
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color = len>>_shrval;
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len &= _maskval;
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if (!len) len = *src++;
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do {
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if (color && y<scrheight && !((*mask|mask[_imgbufoffs])&maskbit)) {
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pcolor = _palette[color];
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if (pcolor==13)
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pcolor = _transEffect[*dst];
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*dst = pcolor;
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}
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dst += 320;
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y++;
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mask += 40;
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if (!--height) {
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if(!--_width2)
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return;
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height = _height;
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dst -= _ypitch;
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y = _ypostop;
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if(_scaleIndexXStep!=1) {
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maskbit<<=1;
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if (!maskbit) {
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maskbit=1;
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_mask_ptr--;
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}
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} else {
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maskbit>>=1;
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if (!maskbit) {
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maskbit=0x80;
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_mask_ptr++;
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}
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}
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mask = _mask_ptr;
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}
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StartPos:;
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} while (--len);
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} while(1);
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}
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void CostumeRenderer::proc3() {
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byte *mask,*src,*dst;
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byte maskbit,len,height,pcolor,width;
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int color,t;
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uint y;
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mask = _mask_ptr_dest;
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dst = _backbuff_ptr;
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height = _height2;
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width = _width2;
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len = _replen;
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color = _repcolor;
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src = _srcptr;
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maskbit = revBitMask[_xpos&7];
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y = _ypos;
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if (_docontinue) goto StartPos;
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do {
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len = *src++;
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color = len>>_shrval;
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len &= _maskval;
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if (!len) len = *src++;
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do {
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if (cost_scaleTable[_scaleIndexY++] < _scaleY) {
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if (color && y < _vscreenheight && !((*mask|mask[_imgbufoffs])&maskbit)) {
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pcolor = _palette[color];
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if (pcolor==13)
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pcolor = _transEffect[*dst];
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*dst = pcolor;
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}
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dst += 320;
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mask += 40;
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y++;
|
|
}
|
|
if (!--height) {
|
|
if(!--width)
|
|
return;
|
|
height = _height;
|
|
y = _ypostop;
|
|
_scaleIndexY = _scaleIndexYTop;
|
|
t = _scaleIndexX;
|
|
_scaleIndexX = t + _scaleIndexXStep;
|
|
if (cost_scaleTable[t] < _scaleX) {
|
|
_xpos += _scaleIndexXStep;
|
|
if (_xpos >= 320)
|
|
return;
|
|
maskbit = revBitMask[_xpos&7];
|
|
_backbuff_ptr += _scaleIndexXStep;
|
|
}
|
|
dst = _backbuff_ptr;
|
|
mask = _mask_ptr + (_xpos>>3);
|
|
}
|
|
StartPos:;
|
|
} while (--len);
|
|
} while(1);
|
|
}
|
|
|
|
void CostumeRenderer::proc2() {
|
|
byte *mask,*src,*dst;
|
|
byte maskbit,len,height,pcolor,width;
|
|
int color,t;
|
|
uint y;
|
|
|
|
mask = _mask_ptr_dest;
|
|
dst = _backbuff_ptr;
|
|
height = _height2;
|
|
width = _width2;
|
|
len = _replen;
|
|
color = _repcolor;
|
|
src = _srcptr;
|
|
maskbit = revBitMask[_xpos&7];
|
|
y = _ypos;
|
|
|
|
if (_docontinue) goto StartPos;
|
|
|
|
do {
|
|
len = *src++;
|
|
color = len>>_shrval;
|
|
len &= _maskval;
|
|
if (!len) len = *src++;
|
|
do {
|
|
if (cost_scaleTable[_scaleIndexY++] < _scaleY) {
|
|
if (color && y < _vscreenheight && !(*mask&maskbit)) {
|
|
pcolor = _palette[color];
|
|
if (pcolor==13)
|
|
pcolor = _transEffect[*dst];
|
|
*dst = pcolor;
|
|
}
|
|
dst += 320;
|
|
mask += 40;
|
|
y++;
|
|
}
|
|
if (!--height) {
|
|
if(!--width)
|
|
return;
|
|
height = _height;
|
|
y = _ypostop;
|
|
_scaleIndexY = _scaleIndexYTop;
|
|
t = _scaleIndexX;
|
|
_scaleIndexX = t + _scaleIndexXStep;
|
|
if (cost_scaleTable[t] < _scaleX) {
|
|
_xpos += _scaleIndexXStep;
|
|
if (_xpos >= 320)
|
|
return;
|
|
maskbit = revBitMask[_xpos&7];
|
|
_backbuff_ptr += _scaleIndexXStep;
|
|
}
|
|
dst = _backbuff_ptr;
|
|
mask = _mask_ptr + (_xpos>>3);
|
|
}
|
|
StartPos:;
|
|
} while (--len);
|
|
} while(1);
|
|
|
|
}
|
|
|
|
void CostumeRenderer::proc1() {
|
|
byte *mask,*src,*dst,*dstorg;
|
|
byte maskbit,len,height,pcolor,width;
|
|
uint y;
|
|
int color;
|
|
int t;
|
|
|
|
mask = _mask_ptr = _mask_ptr_dest;
|
|
maskbit = revBitMask[_xpos&7];
|
|
y = _ypos;
|
|
|
|
dstorg = dst = _backbuff_ptr;
|
|
height = _height2;
|
|
width = _width2;
|
|
len = _replen;
|
|
color = _repcolor;
|
|
src = _srcptr;
|
|
|
|
if (_docontinue) goto StartPos;
|
|
|
|
do {
|
|
len = *src++;
|
|
color = len>>_shrval;
|
|
len &= _maskval;
|
|
if (!len) len = *src++;
|
|
|
|
do {
|
|
if (cost_scaleTable[_scaleIndexY++] < _scaleY) {
|
|
if (color && y < _vscreenheight) {
|
|
pcolor = _palette[color];
|
|
if (pcolor==13)
|
|
pcolor = _transEffect[*dst];
|
|
*dst = pcolor;
|
|
}
|
|
dst += 320;
|
|
y++;
|
|
}
|
|
if (!--height) {
|
|
if(!--width)
|
|
return;
|
|
height = _height;
|
|
y = _ypostop;
|
|
_scaleIndexY = _scaleIndexYTop;
|
|
t = _scaleIndexX;
|
|
_scaleIndexX = t + _scaleIndexXStep;
|
|
if (cost_scaleTable[t] < _scaleX) {
|
|
_xpos += _scaleIndexXStep;
|
|
if (_xpos >= 320)
|
|
return;
|
|
_backbuff_ptr += _scaleIndexXStep;
|
|
}
|
|
dst = _backbuff_ptr;
|
|
}
|
|
StartPos:;
|
|
} while (--len);
|
|
} while(1);
|
|
}
|
|
|
|
void CostumeRenderer::loadCostume(int id) {
|
|
|
|
_ptr = _vm->getResourceAddress(3, id);
|
|
|
|
if (_vm->_majorScummVersion == 6) {
|
|
_ptr += 8;
|
|
} else {
|
|
_ptr += 2;
|
|
}
|
|
|
|
switch(_ptr[7]&0x7F) {
|
|
case 0x58:
|
|
_numColors = 16;
|
|
break;
|
|
case 0x59:
|
|
_numColors = 32;
|
|
break;
|
|
case 0x60: /* New since version 6 */
|
|
_numColors = 16;
|
|
break;
|
|
case 0x61: /* New since version 6 */
|
|
_numColors = 32;
|
|
break;
|
|
default:
|
|
error("Costume %d is invalid", id);
|
|
}
|
|
|
|
_dataptr = _ptr + READ_LE_UINT16(_ptr + _numColors + 8);
|
|
}
|
|
|
|
byte CostumeRenderer::drawOneSlot(Actor *a, int slot) {
|
|
int i;
|
|
int code;
|
|
CostumeData *cd = &a->cost;
|
|
|
|
if (cd->a[slot]==0xFFFF || cd->hdr & (1<<slot))
|
|
return 0;
|
|
|
|
i = cd->a[slot]&0x7FFF;
|
|
_frameptr = _ptr + READ_LE_UINT16(_ptr + _numColors + slot*2 + 10);
|
|
code = _dataptr[i]&0x7F;
|
|
_srcptr = _ptr + READ_LE_UINT16(_frameptr + code*2);
|
|
|
|
if (code != 0x7B) {
|
|
return mainRoutine(a, slot, code);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
byte CostumeRenderer::drawCostume(Actor *a) {
|
|
int i;
|
|
byte r = 0;
|
|
|
|
_xmove = _ymove = 0;
|
|
for (i=0; i<16; i++)
|
|
r|=drawOneSlot(a, i);
|
|
return r;
|
|
}
|
|
|
|
byte CostumeRenderer::animateOneSlot(CostumeData *cd, int slot) {
|
|
int highflag;
|
|
int i,end,code;
|
|
|
|
if (cd->a[slot]==0xFFFF)
|
|
return 0;
|
|
|
|
highflag = cd->a[slot]&0x8000;
|
|
i = cd->a[slot]&0x7FFF;
|
|
end = cd->c[slot];
|
|
code=_dataptr[i]&0x7F;
|
|
|
|
do {
|
|
if (!highflag) {
|
|
if (i++ >= end)
|
|
i = cd->b[slot];
|
|
} else {
|
|
if (i != end)
|
|
i++;
|
|
}
|
|
|
|
if (_dataptr[i]==0x7C) {
|
|
cd->animCounter1++;
|
|
if(cd->b[slot] != end)
|
|
continue;
|
|
}
|
|
|
|
if (_dataptr[i]==0x78) {
|
|
cd->animCounter2++;
|
|
if(cd->b[slot] != end)
|
|
continue;
|
|
}
|
|
|
|
cd->a[slot] = i|highflag;
|
|
return (_dataptr[i]&0x7F) != code;
|
|
} while(1);
|
|
}
|
|
|
|
byte CostumeRenderer::animate(CostumeData *cd) {
|
|
int i;
|
|
byte r = 0;
|
|
|
|
for (i=0; i<16; i++) {
|
|
if(cd->a[i]!=0xFFFF)
|
|
r+=animateOneSlot(cd, i);
|
|
}
|
|
return r;
|
|
}
|
|
|