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Diffstat (limited to 'graphics/video/indeo3.cpp')
| -rw-r--r-- | graphics/video/indeo3.cpp | 1151 |
1 files changed, 1151 insertions, 0 deletions
diff --git a/graphics/video/indeo3.cpp b/graphics/video/indeo3.cpp new file mode 100644 index 0000000000..0e0bd757a2 --- /dev/null +++ b/graphics/video/indeo3.cpp @@ -0,0 +1,1151 @@ +/* ScummVM - Graphic Adventure Engine + * + * ScummVM is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * 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 02110-1301, USA. + * + * $URL$ + * $Id$ + * + */ + +/* Intel Indeo 3 decompressor, derived from ffmpeg. + * + * Original copyright note: * Intel Indeo 3 (IV31, IV32, etc.) video decoder for ffmpeg + * written, produced, and directed by Alan Smithee + */ + +#include "common/system.h" +#include "common/endian.h" +#include "common/frac.h" +#include "common/file.h" + +#include "graphics/dither.h" +#include "graphics/video/indeo3.h" +#include "graphics/video/indeo3data.h" + +namespace Graphics { + +Indeo3::Indeo3(int16 width, int16 height, Graphics::PaletteLUT *palLUT) { + assert((width > 0) && (height > 0)); + + _width = width; + _height = height; + _palLUT = palLUT; + + _ditherSL = 0; + setDither(kDitherSierraLight); + + buildModPred(); + allocFrames(); +} + +Indeo3::~Indeo3() { + delete[] _iv_frame[0].the_buf; + delete[] _ModPred; + delete[] _corrector_type; + delete _ditherSL; +} + +bool Indeo3::isIndeo3(byte *data, uint32 dataLen) { + // No data, no Indeo 3 + if (!data) + return false; + + // Less than 16 bytes? This can't be right + if (dataLen < 16) + return false; + + // Unknown, but according to the docs, always 0 + if (READ_LE_UINT32(data + 4) != 0) + return false; + + uint32 id; + id = READ_LE_UINT32(data ); // frame number + id ^= READ_LE_UINT32(data + 4); // unknown + id ^= READ_LE_UINT32(data + 8); // checksum + id ^= READ_LE_UINT32(data + 12); // frame data length + + // These 4 uint32s XOR'd need to spell "FRMH" + if (id != MKID_BE('FRMH')) + return false; + + return true; +} + +void Indeo3::setDither(DitherAlgorithm dither) { + delete _ditherSL; + _ditherSL = 0; + + _dither = dither; + + switch(dither) { + case kDitherSierraLight: + _ditherSL = new Graphics::SierraLight(_width, _palLUT); + break; + + default: + return; + } +} + +void Indeo3::buildModPred() { + _ModPred = new byte[8 * 128]; + + for (int i = 0; i < 128; i++) { + _ModPred[i+0*128] = (i > 126) ? 254 : 2*((i + 1) - ((i + 1) % 2)); + _ModPred[i+1*128] = (i == 7) ? 20 : ((i == 119 || i == 120) + ? 236 : 2*((i + 2) - ((i + 1) % 3))); + _ModPred[i+2*128] = (i > 125) ? 248 : 2*((i + 2) - ((i + 2) % 4)); + _ModPred[i+3*128] = 2*((i + 1) - ((i - 3) % 5)); + _ModPred[i+4*128] = (i == 8) ? 20 : 2*((i + 1) - ((i - 3) % 6)); + _ModPred[i+5*128] = 2*((i + 4) - ((i + 3) % 7)); + _ModPred[i+6*128] = (i > 123) ? 240 : 2*((i + 4) - ((i + 4) % 8)); + _ModPred[i+7*128] = 2*((i + 5) - ((i + 4) % 9)); + } + + _corrector_type = new uint16[24 * 256]; + + for (int i = 0; i < 24; i++) { + for (int j = 0; j < 256; j++) { + _corrector_type[i*256+j] = + (j < _corrector_type_0[i]) ? 1 : + ((j < 248 || (i == 16 && j == 248)) ? 0 : + _corrector_type_2[j - 248]); + } + } +} + +void Indeo3::allocFrames() { + int32 luma_width = (_width + 3) & (~3); + int32 luma_height = (_height + 3) & (~3); + + int32 chroma_width = ((luma_width >> 2) + 3) & (~3); + int32 chroma_height = ((luma_height>> 2) + 3) & (~3); + + int32 luma_pixels = luma_width * luma_height; + int32 chroma_pixels = chroma_width * chroma_height; + + uint32 bufsize = luma_pixels * 2 + luma_width * 3 + + (chroma_pixels + chroma_width) * 4; + + _iv_frame[0].y_w = _iv_frame[1].y_w = luma_width; + _iv_frame[0].y_h = _iv_frame[1].y_h = luma_height; + _iv_frame[0].uv_w = _iv_frame[1].uv_w = chroma_width; + _iv_frame[0].uv_h = _iv_frame[1].uv_h = chroma_height; + + _iv_frame[0].the_buf_size = bufsize; + _iv_frame[1].the_buf_size = 0; + + _iv_frame[0].the_buf = new byte[bufsize]; + memset(_iv_frame[0].the_buf, 0, bufsize); + _iv_frame[1].the_buf = 0; + + uint32 offs = 0; + + _iv_frame[0].Ybuf = _iv_frame[0].the_buf + luma_width; + offs += luma_pixels + luma_width * 2; + _iv_frame[1].Ybuf = _iv_frame[0].the_buf + offs; + offs += (luma_pixels + luma_width); + _iv_frame[0].Ubuf = _iv_frame[0].the_buf + offs; + offs += (chroma_pixels + chroma_width); + _iv_frame[1].Ubuf = _iv_frame[0].the_buf + offs; + offs += (chroma_pixels + chroma_width); + _iv_frame[0].Vbuf = _iv_frame[0].the_buf + offs; + offs += (chroma_pixels + chroma_width); + _iv_frame[1].Vbuf = _iv_frame[0].the_buf + offs; + + for (int i = 1; i <= luma_width; i++) + _iv_frame[0].Ybuf[-i] = _iv_frame[1].Ybuf[-i] = + _iv_frame[0].Ubuf[-i] = 0x80; + + for (int i = 1; i <= chroma_width; i++) { + _iv_frame[1].Ubuf[-i] = 0x80; + _iv_frame[0].Vbuf[-i] = 0x80; + _iv_frame[1].Vbuf[-i] = 0x80; + _iv_frame[1].Vbuf[chroma_pixels+i-1] = 0x80; + } +} + +bool Indeo3::decompressFrame(byte *inData, uint32 dataLen, + byte *outData, uint16 width, uint16 height) { + + // Not Indeo 3? Fail + if (!isIndeo3(inData, dataLen)) + return false; + + assert(outData); + assert(_palLUT); + + uint32 frameDataLen = READ_LE_UINT32(inData + 12); + + // Less data than the frame should have? Fail + if (dataLen < (frameDataLen - 16)) + return false; + + Common::MemoryReadStream frame(inData, dataLen); + + frame.skip(16); // Header + frame.skip(2); // Unknown + + uint16 flags1 = frame.readUint16LE(); + uint32 flags3 = frame.readUint32LE(); + uint8 flags2 = frame.readByte(); + + // Finding the reference frame + if (flags1 & 0x200) { + _cur_frame = _iv_frame + 1; + _ref_frame = _iv_frame; + } else { + _cur_frame = _iv_frame; + _ref_frame = _iv_frame + 1; + } + + if (flags3 == 0x80) + return true; + + frame.skip(3); + + uint16 fHeight = frame.readUint16LE(); + uint16 fWidth = frame.readUint16LE(); + + uint32 chromaHeight = ((fHeight >> 2) + 3) & 0x7FFC; + uint32 chromaWidth = ((fWidth >> 2) + 3) & 0x7FFC; + + uint32 offs; + uint32 offsY = frame.readUint32LE() + 16; + uint32 offsU = frame.readUint32LE() + 16; + uint32 offsV = frame.readUint32LE() + 16; + + frame.skip(4); + + uint32 hPos = frame.pos(); + + byte *hdr_pos = inData + hPos; + byte *buf_pos; + + // Luminance Y + frame.seek(offsY); + buf_pos = inData + offsY + 4; + offs = frame.readUint32LE(); + decodeChunk(_cur_frame->Ybuf, _ref_frame->Ybuf, fWidth, fHeight, + buf_pos + offs * 2, flags2, hdr_pos, buf_pos, MIN<int>(fWidth, 160)); + + // Chrominance U + frame.seek(offsU); + buf_pos = inData + offsU + 4; + offs = frame.readUint32LE(); + decodeChunk(_cur_frame->Vbuf, _ref_frame->Vbuf, chromaWidth, chromaHeight, + buf_pos + offs * 2, flags2, hdr_pos, buf_pos, MIN<int>(chromaWidth, 40)); + + // Chrominance V + frame.seek(offsV); + buf_pos = inData + offsV + 4; + offs = frame.readUint32LE(); + decodeChunk(_cur_frame->Ubuf, _ref_frame->Ubuf, chromaWidth, chromaHeight, + buf_pos + offs * 2, flags2, hdr_pos, buf_pos, MIN<int>(chromaWidth, 40)); + + BlitState blitState; + + blitState.widthY = _cur_frame->y_w; + blitState.widthUV = _cur_frame->uv_w; + blitState.uwidthUV = chromaWidth; + blitState.uwidthOut = fWidth; + blitState.heightY = _cur_frame->y_h; + blitState.heightUV = _cur_frame->uv_h; + blitState.uheightUV = chromaHeight; + blitState.uheightOut = fHeight; + blitState.scaleWYUV = blitState.widthY / blitState.widthUV; + blitState.scaleHYUV = blitState.heightY / blitState.heightUV; + blitState.scaleWYOut = blitState.widthY / blitState.uwidthOut; + blitState.scaleHYOut = blitState.heightY / blitState.uheightOut; + blitState.lineWidthOut = blitState.scaleWYOut * blitState.uwidthOut; + blitState.lineHeightOut = blitState.scaleHYOut * blitState.uheightOut; + blitState.bufY = _cur_frame->Ybuf; + blitState.bufU = _cur_frame->Ubuf; + blitState.bufV = _cur_frame->Vbuf; + blitState.bufOut = outData; + + blitFrame(blitState); + + return true; +} + +void Indeo3::blitFrame(BlitState &s) { + if (_ditherSL) + _ditherSL->newFrame(); + + for (s.curY = 0; s.curY < s.uheightOut; s.curY++) { + if (_dither == kDitherNone) + blitLine(s); + else + blitLineDither(s); + } +} + +void Indeo3::blitLine(BlitState &s) { + byte *lineU = s.bufU + (s.curY >> 2) * s.uwidthUV; + byte *lineV = s.bufV + (s.curY >> 2) * s.uwidthUV; + + for (s.curX = 0; s.curX < s.uwidthOut; s.curX++) { + byte dataY = *s.bufY++; + byte dataU = lineU[s.curX >> 2]; + byte dataV = lineV[s.curX >> 2]; + + for (int n = 0; n < s.scaleWYOut; n++) + *s.bufOut++ = _palLUT->findNearest(dataY, dataU, dataV); + } + + byte *lineDest = s.bufOut - s.lineWidthOut; + for (int n = 1; n < s.scaleHYOut; n++) { + memcpy(s.bufOut, lineDest, s.lineWidthOut); + s.bufOut += s.lineWidthOut; + } +} + +void Indeo3::blitLineDither(BlitState &s) { + byte *lineU = s.bufU + (s.curY >> 2) * s.uwidthUV; + byte *lineV = s.bufV + (s.curY >> 2) * s.uwidthUV; + + for (uint16 i = 0; i < s.scaleHYOut; i++) { + byte *bufY = s.bufY; + + for (s.curX = 0; s.curX < s.uwidthOut; s.curX++) { + byte dataY = *bufY++; + byte dataU = lineU[s.curX >> 2]; + byte dataV = lineV[s.curX >> 2]; + + for (int n = 0; n < s.scaleWYOut; n++) + *s.bufOut++ = _ditherSL->dither(dataY, dataU, dataV, s.curX * s.scaleWYOut + n); + + } + + _ditherSL->nextLine(); + } + + s.bufY += s.uwidthOut; +} + +typedef struct { + int32 xpos; + int32 ypos; + int32 width; + int32 height; + int32 split_flag; + int32 split_direction; + int32 usl7; +} ustr_t; + +/* ---------------------------------------------------------------------- */ + +#define LV1_CHECK(buf1,rle_v3,lv1,lp2) \ + if ((lv1 & 0x80) != 0) { \ + if (rle_v3 != 0) \ + rle_v3 = 0; \ + else { \ + rle_v3 = 1; \ + buf1 -= 2; \ + } \ + } \ + lp2 = 4; + + +#define RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3) \ + if (rle_v3 == 0) { \ + rle_v2 = *buf1; \ + rle_v1 = 1; \ + if (rle_v2 > 32) { \ + rle_v2 -= 32; \ + rle_v1 = 0; \ + } \ + rle_v3 = 1; \ + } \ + buf1--; + + +#define LP2_CHECK(buf1,rle_v3,lp2) \ + if (lp2 == 0 && rle_v3 != 0) \ + rle_v3 = 0; \ + else { \ + buf1--; \ + rle_v3 = 1; \ + } + + +#define RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2) \ + rle_v2--; \ + if (rle_v2 == 0) { \ + rle_v3 = 0; \ + buf1 += 2; \ + } \ + lp2 = 4; + +void Indeo3::decodeChunk(byte *cur, byte *ref, int width, int height, + const byte *buf1, uint32 fflags2, const byte *hdr, + const byte *buf2, int min_width_160) { + + byte bit_buf; + uint32 bit_pos, lv, lv1, lv2; + int32 *width_tbl, width_tbl_arr[10]; + const int8 *ref_vectors; + byte *cur_frm_pos, *ref_frm_pos, *cp, *cp2; + uint32 *cur_lp, *ref_lp; + const uint32 *correction_lp[2], *correctionloworder_lp[2], *correctionhighorder_lp[2]; + uint16 *correction_type_sp[2]; + ustr_t strip_tbl[20], *strip; + int i, j, k, lp1, lp2, flag1, cmd; + int blks_width, blks_height, region_160_width; + int rle_v1, rle_v2, rle_v3; + uint16 res; + + bit_buf = 0; + ref_vectors = NULL; + + width_tbl = width_tbl_arr + 1; + i = (width < 0 ? width + 3 : width)/4; + for (j = -1; j < 8; j++) + width_tbl[j] = i * j; + + strip = strip_tbl; + + for (region_160_width = 0; region_160_width < (width - min_width_160); region_160_width += min_width_160) + ; + + strip->ypos = strip->xpos = 0; + for (strip->width = min_width_160; width > strip->width; strip->width *= 2) + ; + strip->height = height; + strip->split_direction = 0; + strip->split_flag = 0; + strip->usl7 = 0; + + bit_pos = 0; + + rle_v1 = rle_v2 = rle_v3 = 0; + + while (strip >= strip_tbl) { + if (bit_pos <= 0) { + bit_pos = 8; + bit_buf = *buf1++; + } + + bit_pos -= 2; + cmd = (bit_buf >> bit_pos) & 0x03; + + if (cmd == 0) { + strip++; + memcpy(strip, strip-1, sizeof(ustr_t)); + strip->split_flag = 1; + strip->split_direction = 0; + strip->height = (strip->height > 8 ? ((strip->height+8)>>4)<<3 : 4); + continue; + } else if (cmd == 1) { + strip++; + memcpy(strip, strip-1, sizeof(ustr_t)); + strip->split_flag = 1; + strip->split_direction = 1; + strip->width = (strip->width > 8 ? ((strip->width+8)>>4)<<3 : 4); + continue; + } else if (cmd == 2) { + if (strip->usl7 == 0) { + strip->usl7 = 1; + ref_vectors = NULL; + continue; + } + } else if (cmd == 3) { + if (strip->usl7 == 0) { + strip->usl7 = 1; + ref_vectors = (const signed char*)buf2 + (*buf1 * 2); + buf1++; + continue; + } + } + + cur_frm_pos = cur + width * strip->ypos + strip->xpos; + + if ((blks_width = strip->width) < 0) + blks_width += 3; + blks_width >>= 2; + blks_height = strip->height; + + if (ref_vectors != NULL) { + ref_frm_pos = ref + (ref_vectors[0] + strip->ypos) * width + + ref_vectors[1] + strip->xpos; + } else + ref_frm_pos = cur_frm_pos - width_tbl[4]; + + if (cmd == 2) { + if (bit_pos <= 0) { + bit_pos = 8; + bit_buf = *buf1++; + } + + bit_pos -= 2; + cmd = (bit_buf >> bit_pos) & 0x03; + + if (cmd == 0 || ref_vectors != NULL) { + for (lp1 = 0; lp1 < blks_width; lp1++) { + for (i = 0, j = 0; i < blks_height; i++, j += width_tbl[1]) + ((uint32 *)cur_frm_pos)[j] = ((uint32 *)ref_frm_pos)[j]; + cur_frm_pos += 4; + ref_frm_pos += 4; + } + } else if (cmd != 1) + return; + } else { + k = *buf1 >> 4; + j = *buf1 & 0x0f; + buf1++; + lv = j + fflags2; + + if ((lv - 8) <= 7 && (k == 0 || k == 3 || k == 10)) { + cp2 = _ModPred + ((lv - 8) << 7); + cp = ref_frm_pos; + for (i = 0; i < blks_width << 2; i++) { + int v = *cp >> 1; + *(cp++) = cp2[v]; + } + } + + if (k == 1 || k == 4) { + lv = (hdr[j] & 0xf) + fflags2; + correction_type_sp[0] = _corrector_type + (lv << 8); + correction_lp[0] = correction + (lv << 8); + lv = (hdr[j] >> 4) + fflags2; + correction_lp[1] = correction + (lv << 8); + correction_type_sp[1] = _corrector_type + (lv << 8); + } else { + correctionloworder_lp[0] = correctionloworder_lp[1] = correctionloworder + (lv << 8); + correctionhighorder_lp[0] = correctionhighorder_lp[1] = correctionhighorder + (lv << 8); + correction_type_sp[0] = correction_type_sp[1] = _corrector_type + (lv << 8); + correction_lp[0] = correction_lp[1] = correction + (lv << 8); + } + + switch(k) { + case 1: + case 0: /********** CASE 0 **********/ + for ( ; blks_height > 0; blks_height -= 4) { + for (lp1 = 0; lp1 < blks_width; lp1++) { + for (lp2 = 0; lp2 < 4; ) { + k = *buf1++; + cur_lp = ((uint32 *)cur_frm_pos) + width_tbl[lp2]; + ref_lp = ((uint32 *)ref_frm_pos) + width_tbl[lp2]; + + switch(correction_type_sp[0][k]) { + case 0: + *cur_lp = FROM_LE_32(((FROM_LE_32(*ref_lp) >> 1) + correction_lp[lp2 & 0x01][k]) << 1); + lp2++; + break; + case 1: + res = ((FROM_LE_16(((uint16 *)(ref_lp))[0]) >> 1) + correction_lp[lp2 & 0x01][*buf1]) << 1; + ((uint16 *)cur_lp)[0] = FROM_LE_16(res); + res = ((FROM_LE_16(((uint16 *)(ref_lp))[1]) >> 1) + correction_lp[lp2 & 0x01][k]) << 1; + ((uint16 *)cur_lp)[1] = FROM_LE_16(res); + buf1++; + lp2++; + break; + case 2: + if (lp2 == 0) { + for (i = 0, j = 0; i < 2; i++, j += width_tbl[1]) + cur_lp[j] = ref_lp[j]; + lp2 += 2; + } + break; + case 3: + if (lp2 < 2) { + for (i = 0, j = 0; i < (3 - lp2); i++, j += width_tbl[1]) + cur_lp[j] = ref_lp[j]; + lp2 = 3; + } + break; + case 8: + if (lp2 == 0) { + RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3) + + if (rle_v1 == 1 || ref_vectors != NULL) { + for (i = 0, j = 0; i < 4; i++, j += width_tbl[1]) + cur_lp[j] = ref_lp[j]; + } + + RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2) + break; + } else { + rle_v1 = 1; + rle_v2 = *buf1 - 1; + } + case 5: + LP2_CHECK(buf1,rle_v3,lp2) + case 4: + for (i = 0, j = 0; i < (4 - lp2); i++, j += width_tbl[1]) + cur_lp[j] = ref_lp[j]; + lp2 = 4; + break; + + case 7: + if (rle_v3 != 0) + rle_v3 = 0; + else { + buf1--; + rle_v3 = 1; + } + case 6: + if (ref_vectors != NULL) { + for (i = 0, j = 0; i < 4; i++, j += width_tbl[1]) + cur_lp[j] = ref_lp[j]; + } + lp2 = 4; + break; + + case 9: + lv1 = *buf1++; + lv = (lv1 & 0x7F) << 1; + lv += (lv << 8); + lv += (lv << 16); + for (i = 0, j = 0; i < 4; i++, j += width_tbl[1]) + cur_lp[j] = lv; + + LV1_CHECK(buf1,rle_v3,lv1,lp2) + break; + default: + return; + } + } + + cur_frm_pos += 4; + ref_frm_pos += 4; + } + + cur_frm_pos += ((width - blks_width) * 4); + ref_frm_pos += ((width - blks_width) * 4); + } + break; + + case 4: + case 3: /********** CASE 3 **********/ + if (ref_vectors != NULL) + return; + flag1 = 1; + + for ( ; blks_height > 0; blks_height -= 8) { + for (lp1 = 0; lp1 < blks_width; lp1++) { + for (lp2 = 0; lp2 < 4; ) { + k = *buf1++; + + cur_lp = ((uint32 *)cur_frm_pos) + width_tbl[lp2 * 2]; + ref_lp = ((uint32 *)cur_frm_pos) + width_tbl[(lp2 * 2) - 1]; + + switch(correction_type_sp[lp2 & 0x01][k]) { + case 0: + cur_lp[width_tbl[1]] = FROM_LE_32(((FROM_LE_32(*ref_lp) >> 1) + correction_lp[lp2 & 0x01][k]) << 1); + if (lp2 > 0 || flag1 == 0 || strip->ypos != 0) + cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE; + else + cur_lp[0] = FROM_LE_32(((FROM_LE_32(*ref_lp) >> 1) + correction_lp[lp2 & 0x01][k]) << 1); + lp2++; + break; + + case 1: + res = ((FROM_LE_16(((uint16 *)ref_lp)[0]) >> 1) + correction_lp[lp2 & 0x01][*buf1]) << 1; + ((uint16 *)cur_lp)[width_tbl[2]] = FROM_LE_16(res); + res = ((FROM_LE_16(((uint16 *)ref_lp)[1]) >> 1) + correction_lp[lp2 & 0x01][k]) << 1; + ((uint16 *)cur_lp)[width_tbl[2]+1] = FROM_LE_16(res); + + if (lp2 > 0 || flag1 == 0 || strip->ypos != 0) + cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE; + else + cur_lp[0] = cur_lp[width_tbl[1]]; + buf1++; + lp2++; + break; + + case 2: + if (lp2 == 0) { + for (i = 0, j = 0; i < 4; i++, j += width_tbl[1]) + cur_lp[j] = *ref_lp; + lp2 += 2; + } + break; + + case 3: + if (lp2 < 2) { + for (i = 0, j = 0; i < 6 - (lp2 * 2); i++, j += width_tbl[1]) + cur_lp[j] = *ref_lp; + lp2 = 3; + } + break; + + case 6: + lp2 = 4; + break; + + case 7: + if (rle_v3 != 0) + rle_v3 = 0; + else { + buf1--; + rle_v3 = 1; + } + lp2 = 4; + break; + + case 8: + if (lp2 == 0) { + RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3) + + if (rle_v1 == 1) { + for (i = 0, j = 0; i < 8; i++, j += width_tbl[1]) + cur_lp[j] = ref_lp[j]; + } + + RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2) + break; + } else { + rle_v2 = (*buf1) - 1; + rle_v1 = 1; + } + case 5: + LP2_CHECK(buf1,rle_v3,lp2) + case 4: + for (i = 0, j = 0; i < 8 - (lp2 * 2); i++, j += width_tbl[1]) + cur_lp[j] = *ref_lp; + lp2 = 4; + break; + + case 9: + warning("Indeo3::decodeChunk: Untested (1)"); + lv1 = *buf1++; + lv = (lv1 & 0x7F) << 1; + lv += (lv << 8); + lv += (lv << 16); + + for (i = 0, j = 0; i < 4; i++, j += width_tbl[1]) + cur_lp[j] = lv; + + LV1_CHECK(buf1,rle_v3,lv1,lp2) + break; + + default: + return; + } + } + + cur_frm_pos += 4; + } + + cur_frm_pos += (((width * 2) - blks_width) * 4); + flag1 = 0; + } + break; + + case 10: /********** CASE 10 **********/ + if (ref_vectors == NULL) { + flag1 = 1; + + for ( ; blks_height > 0; blks_height -= 8) { + for (lp1 = 0; lp1 < blks_width; lp1 += 2) { + for (lp2 = 0; lp2 < 4; ) { + k = *buf1++; + cur_lp = ((uint32 *)cur_frm_pos) + width_tbl[lp2 * 2]; + ref_lp = ((uint32 *)cur_frm_pos) + width_tbl[(lp2 * 2) - 1]; + lv1 = ref_lp[0]; + lv2 = ref_lp[1]; + if (lp2 == 0 && flag1 != 0) { +#if defined(SCUMM_BIG_ENDIAN) + lv1 = lv1 & 0xFF00FF00; + lv1 = (lv1 >> 8) | lv1; + lv2 = lv2 & 0xFF00FF00; + lv2 = (lv2 >> 8) | lv2; +#else + lv1 = lv1 & 0x00FF00FF; + lv1 = (lv1 << 8) | lv1; + lv2 = lv2 & 0x00FF00FF; + lv2 = (lv2 << 8) | lv2; +#endif + } + + switch(correction_type_sp[lp2 & 0x01][k]) { + case 0: + cur_lp[width_tbl[1]] = FROM_LE_32(((FROM_LE_32(lv1) >> 1) + correctionloworder_lp[lp2 & 0x01][k]) << 1); + cur_lp[width_tbl[1]+1] = FROM_LE_32(((FROM_LE_32(lv2) >> 1) + correctionhighorder_lp[lp2 & 0x01][k]) << 1); + if (lp2 > 0 || strip->ypos != 0 || flag1 == 0) { + cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE; + cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE; + } else { + cur_lp[0] = cur_lp[width_tbl[1]]; + cur_lp[1] = cur_lp[width_tbl[1]+1]; + } + lp2++; + break; + + case 1: + cur_lp[width_tbl[1]] = FROM_LE_32(((FROM_LE_32(lv1) >> 1) + correctionloworder_lp[lp2 & 0x01][*buf1]) << 1); + cur_lp[width_tbl[1]+1] = FROM_LE_32(((FROM_LE_32(lv2) >> 1) + correctionloworder_lp[lp2 & 0x01][k]) << 1); + if (lp2 > 0 || strip->ypos != 0 || flag1 == 0) { + cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE; + cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE; + } else { + cur_lp[0] = cur_lp[width_tbl[1]]; + cur_lp[1] = cur_lp[width_tbl[1]+1]; + } + buf1++; + lp2++; + break; + + case 2: + if (lp2 == 0) { + if (flag1 != 0) { + for (i = 0, j = width_tbl[1]; i < 3; i++, j += width_tbl[1]) { + cur_lp[j] = lv1; + cur_lp[j+1] = lv2; + } + cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE; + cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE; + } else { + for (i = 0, j = 0; i < 4; i++, j += width_tbl[1]) { + cur_lp[j] = lv1; + cur_lp[j+1] = lv2; + } + } + lp2 += 2; + } + break; + + case 3: + if (lp2 < 2) { + if (lp2 == 0 && flag1 != 0) { + for (i = 0, j = width_tbl[1]; i < 5; i++, j += width_tbl[1]) { + cur_lp[j] = lv1; + cur_lp[j+1] = lv2; + } + cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE; + cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE; + } else { + for (i = 0, j = 0; i < 6 - (lp2 * 2); i++, j += width_tbl[1]) { + cur_lp[j] = lv1; + cur_lp[j+1] = lv2; + } + } + lp2 = 3; + } + break; + + case 8: + if (lp2 == 0) { + RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3) + if (rle_v1 == 1) { + if (flag1 != 0) { + for (i = 0, j = width_tbl[1]; i < 7; i++, j += width_tbl[1]) { + cur_lp[j] = lv1; + cur_lp[j+1] = lv2; + } + cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE; + cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE; + } else { + for (i = 0, j = 0; i < 8; i++, j += width_tbl[1]) { + cur_lp[j] = lv1; + cur_lp[j+1] = lv2; + } + } + } + RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2) + break; + } else { + rle_v1 = 1; + rle_v2 = (*buf1) - 1; + } + case 5: + LP2_CHECK(buf1,rle_v3,lp2) + case 4: + if (lp2 == 0 && flag1 != 0) { + for (i = 0, j = width_tbl[1]; i < 7; i++, j += width_tbl[1]) { + cur_lp[j] = lv1; + cur_lp[j+1] = lv2; + } + cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE; + cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE; + } else { + for (i = 0, j = 0; i < 8 - (lp2 * 2); i++, j += width_tbl[1]) { + cur_lp[j] = lv1; + cur_lp[j+1] = lv2; + } + } + lp2 = 4; + break; + + case 6: + lp2 = 4; + break; + + case 7: + if (lp2 == 0) { + if (rle_v3 != 0) + rle_v3 = 0; + else { + buf1--; + rle_v3 = 1; + } + lp2 = 4; + } + break; + + case 9: + warning("Indeo3::decodeChunk: Untested (2)"); + lv1 = *buf1; + lv = (lv1 & 0x7F) << 1; + lv += (lv << 8); + lv += (lv << 16); + for (i = 0, j = 0; i < 8; i++, j += width_tbl[1]) + cur_lp[j] = lv; + LV1_CHECK(buf1,rle_v3,lv1,lp2) + break; + + default: + return; + } + } + + cur_frm_pos += 8; + } + + cur_frm_pos += (((width * 2) - blks_width) * 4); + flag1 = 0; + } + } else { + for ( ; blks_height > 0; blks_height -= 8) { + for (lp1 = 0; lp1 < blks_width; lp1 += 2) { + for (lp2 = 0; lp2 < 4; ) { + k = *buf1++; + cur_lp = ((uint32 *)cur_frm_pos) + width_tbl[lp2 * 2]; + ref_lp = ((uint32 *)ref_frm_pos) + width_tbl[lp2 * 2]; + + switch(correction_type_sp[lp2 & 0x01][k]) { + case 0: + lv1 = correctionloworder_lp[lp2 & 0x01][k]; + lv2 = correctionhighorder_lp[lp2 & 0x01][k]; + cur_lp[0] = FROM_LE_32(((FROM_LE_32(ref_lp[0]) >> 1) + lv1) << 1); + cur_lp[1] = FROM_LE_32(((FROM_LE_32(ref_lp[1]) >> 1) + lv2) << 1); + cur_lp[width_tbl[1]] = FROM_LE_32(((FROM_LE_32(ref_lp[width_tbl[1]]) >> 1) + lv1) << 1); + cur_lp[width_tbl[1]+1] = FROM_LE_32(((FROM_LE_32(ref_lp[width_tbl[1]+1]) >> 1) + lv2) << 1); + lp2++; + break; + + case 1: + lv1 = correctionloworder_lp[lp2 & 0x01][*buf1++]; + lv2 = correctionloworder_lp[lp2 & 0x01][k]; + cur_lp[0] = FROM_LE_32(((FROM_LE_32(ref_lp[0]) >> 1) + lv1) << 1); + cur_lp[1] = FROM_LE_32(((FROM_LE_32(ref_lp[1]) >> 1) + lv2) << 1); + cur_lp[width_tbl[1]] = FROM_LE_32(((FROM_LE_32(ref_lp[width_tbl[1]]) >> 1) + lv1) << 1); + cur_lp[width_tbl[1]+1] = FROM_LE_32(((FROM_LE_32(ref_lp[width_tbl[1]+1]) >> 1) + lv2) << 1); + lp2++; + break; + + case 2: + if (lp2 == 0) { + for (i = 0, j = 0; i < 4; i++, j += width_tbl[1]) { + cur_lp[j] = ref_lp[j]; + cur_lp[j+1] = ref_lp[j+1]; + } + lp2 += 2; + } + break; + + case 3: + if (lp2 < 2) { + for (i = 0, j = 0; i < 6 - (lp2 * 2); i++, j += width_tbl[1]) { + cur_lp[j] = ref_lp[j]; + cur_lp[j+1] = ref_lp[j+1]; + } + lp2 = 3; + } + break; + + case 8: + if (lp2 == 0) { + RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3) + for (i = 0, j = 0; i < 8; i++, j += width_tbl[1]) { + ((uint32 *)cur_frm_pos)[j] = ((uint32 *)ref_frm_pos)[j]; + ((uint32 *)cur_frm_pos)[j+1] = ((uint32 *)ref_frm_pos)[j+1]; + } + RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2) + break; + } else { + rle_v1 = 1; + rle_v2 = (*buf1) - 1; + } + case 5: + case 7: + LP2_CHECK(buf1,rle_v3,lp2) + case 6: + case 4: + for (i = 0, j = 0; i < 8 - (lp2 * 2); i++, j += width_tbl[1]) { + cur_lp[j] = ref_lp[j]; + cur_lp[j+1] = ref_lp[j+1]; + } + lp2 = 4; + break; + + case 9: + warning("Indeo3::decodeChunk: Untested (3)"); + lv1 = *buf1; + lv = (lv1 & 0x7F) << 1; + lv += (lv << 8); + lv += (lv << 16); + for (i = 0, j = 0; i < 8; i++, j += width_tbl[1]) + ((uint32 *)cur_frm_pos)[j] = ((uint32 *)cur_frm_pos)[j+1] = lv; + LV1_CHECK(buf1,rle_v3,lv1,lp2) + break; + + default: + return; + } + } + + cur_frm_pos += 8; + ref_frm_pos += 8; + } + + cur_frm_pos += (((width * 2) - blks_width) * 4); + ref_frm_pos += (((width * 2) - blks_width) * 4); + } + } + break; + + case 11: /********** CASE 11 **********/ + if (ref_vectors == NULL) + return; + + for ( ; blks_height > 0; blks_height -= 8) { + for (lp1 = 0; lp1 < blks_width; lp1++) { + for (lp2 = 0; lp2 < 4; ) { + k = *buf1++; + cur_lp = ((uint32 *)cur_frm_pos) + width_tbl[lp2 * 2]; + ref_lp = ((uint32 *)ref_frm_pos) + width_tbl[lp2 * 2]; + + switch(correction_type_sp[lp2 & 0x01][k]) { + case 0: + cur_lp[0] = FROM_LE_32(((FROM_LE_32(*ref_lp) >> 1) + correction_lp[lp2 & 0x01][k]) << 1); + cur_lp[width_tbl[1]] = FROM_LE_32(((FROM_LE_32(ref_lp[width_tbl[1]]) >> 1) + correction_lp[lp2 & 0x01][k]) << 1); + lp2++; + break; + + case 1: + lv1 = (uint16)(correction_lp[lp2 & 0x01][*buf1++]); + lv2 = (uint16)(correction_lp[lp2 & 0x01][k]); + res = (uint16)(((FROM_LE_16(((uint16 *)ref_lp)[0]) >> 1) + lv1) << 1); + ((uint16 *)cur_lp)[0] = FROM_LE_16(res); + res = (uint16)(((FROM_LE_16(((uint16 *)ref_lp)[1]) >> 1) + lv2) << 1); + ((uint16 *)cur_lp)[1] = FROM_LE_16(res); + res = (uint16)(((FROM_LE_16(((uint16 *)ref_lp)[width_tbl[2]]) >> 1) + lv1) << 1); + ((uint16 *)cur_lp)[width_tbl[2]] = FROM_LE_16(res); + res = (uint16)(((FROM_LE_16(((uint16 *)ref_lp)[width_tbl[2]+1]) >> 1) + lv2) << 1); + ((uint16 *)cur_lp)[width_tbl[2]+1] = FROM_LE_16(res); + lp2++; + break; + + case 2: + if (lp2 == 0) { + for (i = 0, j = 0; i < 4; i++, j += width_tbl[1]) + cur_lp[j] = ref_lp[j]; + lp2 += 2; + } + break; + + case 3: + if (lp2 < 2) { + for (i = 0, j = 0; i < 6 - (lp2 * 2); i++, j += width_tbl[1]) + cur_lp[j] = ref_lp[j]; + lp2 = 3; + } + break; + + case 8: + if (lp2 == 0) { + RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3) + + for (i = 0, j = 0; i < 8; i++, j += width_tbl[1]) + cur_lp[j] = ref_lp[j]; + + RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2) + break; + } else { + rle_v1 = 1; + rle_v2 = (*buf1) - 1; + } + case 5: + case 7: + LP2_CHECK(buf1,rle_v3,lp2) + case 4: + case 6: + for (i = 0, j = 0; i < 8 - (lp2 * 2); i++, j += width_tbl[1]) + cur_lp[j] = ref_lp[j]; + lp2 = 4; + break; + + case 9: + warning("Indeo3::decodeChunk: Untested (4)"); + lv1 = *buf1++; + lv = (lv1 & 0x7F) << 1; + lv += (lv << 8); + lv += (lv << 16); + for (i = 0, j = 0; i < 4; i++, j += width_tbl[1]) + cur_lp[j] = lv; + LV1_CHECK(buf1,rle_v3,lv1,lp2) + break; + + default: + return; + } + } + + cur_frm_pos += 4; + ref_frm_pos += 4; + } + + cur_frm_pos += (((width * 2) - blks_width) * 4); + ref_frm_pos += (((width * 2) - blks_width) * 4); + } + break; + + default: + return; + } + } + + if (strip < strip_tbl) + return; + + for ( ; strip >= strip_tbl; strip--) { + if (strip->split_flag != 0) { + strip->split_flag = 0; + strip->usl7 = (strip-1)->usl7; + + if (strip->split_direction) { + strip->xpos += strip->width; + strip->width = (strip-1)->width - strip->width; + if (region_160_width <= strip->xpos && width < strip->width + strip->xpos) + strip->width = width - strip->xpos; + } else { + strip->ypos += strip->height; + strip->height = (strip-1)->height - strip->height; + } + break; + } + } + } +} + +} // End of namespace Graphics |