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Diffstat (limited to 'engines/gob/indeo3.cpp')
| -rw-r--r-- | engines/gob/indeo3.cpp | 1151 |
1 files changed, 0 insertions, 1151 deletions
diff --git a/engines/gob/indeo3.cpp b/engines/gob/indeo3.cpp deleted file mode 100644 index e7cd4aa594..0000000000 --- a/engines/gob/indeo3.cpp +++ /dev/null @@ -1,1151 +0,0 @@ -/* 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 "gob/indeo3.h" -#include "gob/indeo3data.h" - -namespace Gob { - -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 Gob |