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-rw-r--r--graphics/video/dxa_decoder.cpp562
1 files changed, 0 insertions, 562 deletions
diff --git a/graphics/video/dxa_decoder.cpp b/graphics/video/dxa_decoder.cpp
deleted file mode 100644
index 3c52c0fc58..0000000000
--- a/graphics/video/dxa_decoder.cpp
+++ /dev/null
@@ -1,562 +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.
- *
- * $URL$
- * $Id$
- *
- */
-
-#include "common/debug.h"
-#include "common/endian.h"
-#include "common/archive.h"
-#include "common/system.h"
-#include "common/stream.h"
-#include "common/util.h"
-
-#include "graphics/video/dxa_decoder.h"
-
-#ifdef USE_ZLIB
- #include "common/zlib.h"
-#endif
-
-namespace Graphics {
-
-DXADecoder::DXADecoder() {
- _fileStream = 0;
- _surface = 0;
- _dirtyPalette = false;
-
- _frameBuffer1 = 0;
- _frameBuffer2 = 0;
- _scaledBuffer = 0;
-
- _inBuffer = 0;
- _inBufferSize = 0;
-
- _decompBuffer = 0;
- _decompBufferSize = 0;
-
- _width = 0;
- _height = 0;
-
- _frameSize = 0;
- _frameCount = 0;
- _frameRate = 0;
-
- _scaleMode = S_NONE;
-}
-
-DXADecoder::~DXADecoder() {
- close();
-}
-
-bool DXADecoder::load(Common::SeekableReadStream *stream) {
- close();
-
- _fileStream = stream;
-
- uint32 tag = _fileStream->readUint32BE();
- assert(tag == MKID_BE('DEXA'));
-
- uint8 flags = _fileStream->readByte();
- _frameCount = _fileStream->readUint16BE();
- int32 frameRate = _fileStream->readSint32BE();
-
- if (frameRate > 0)
- _frameRate = 1000 / frameRate;
- else if (frameRate < 0)
- _frameRate = 100000 / (-frameRate);
- else
- _frameRate = 10;
-
- _width = _fileStream->readUint16BE();
- _height = _fileStream->readUint16BE();
-
- if (flags & 0x80) {
- _scaleMode = S_INTERLACED;
- _curHeight = _height / 2;
- } else if (flags & 0x40) {
- _scaleMode = S_DOUBLE;
- _curHeight = _height / 2;
- } else {
- _scaleMode = S_NONE;
- _curHeight = _height;
- }
-
- _surface = new Graphics::Surface();
- _surface->bytesPerPixel = 1;
-
- debug(2, "flags 0x0%x framesCount %d width %d height %d rate %d", flags, getFrameCount(), getWidth(), getHeight(), getFrameRate().toInt());
-
- _frameSize = _width * _height;
- _decompBufferSize = _frameSize;
- _frameBuffer1 = (uint8 *)malloc(_frameSize);
- memset(_frameBuffer1, 0, _frameSize);
- _frameBuffer2 = (uint8 *)malloc(_frameSize);
- memset(_frameBuffer2, 0, _frameSize);
- if (!_frameBuffer1 || !_frameBuffer2)
- error("DXADecoder: Error allocating frame buffers (size %u)", _frameSize);
-
- _scaledBuffer = 0;
- if (_scaleMode != S_NONE) {
- _scaledBuffer = (uint8 *)malloc(_frameSize);
- memset(_scaledBuffer, 0, _frameSize);
- if (!_scaledBuffer)
- error("Error allocating scale buffer (size %u)", _frameSize);
- }
-
-#ifdef DXA_EXPERIMENT_MAXD
- // Check for an extended header
- if (flags & 1) {
- uint32 size;
-
- do {
- tag = _fileStream->readUint32BE();
-
- if (tag != 0)
- size = _fileStream->readUint32BE();
-
- switch (tag) {
- case 0: // No more tags
- break;
- case MKID_BE('MAXD'):
- assert(size == 4);
- _decompBufferSize = _fileStream->readUint32BE();
- break;
- default: // Unknown tag - skip it.
- while (size > 0) {
- byte dummy = _fileStream->readByte();
- size--;
- }
- break;
- }
- } while (tag != 0);
- }
-#endif
-
- // Read the sound header
- _soundTag = _fileStream->readUint32BE();
-
- return true;
-}
-
-void DXADecoder::close() {
- if (!_fileStream)
- return;
-
- delete _fileStream;
- _fileStream = 0;
-
- delete _surface;
- _surface = 0;
-
- free(_frameBuffer1);
- free(_frameBuffer2);
- free(_scaledBuffer);
- free(_inBuffer);
- free(_decompBuffer);
-
- _inBuffer = 0;
- _decompBuffer = 0;
-
- reset();
-}
-
-void DXADecoder::decodeZlib(byte *data, int size, int totalSize) {
-#ifdef USE_ZLIB
- unsigned long dstLen = totalSize;
- Common::uncompress(data, &dstLen, _inBuffer, size);
-#endif
-}
-
-#define BLOCKW 4
-#define BLOCKH 4
-
-void DXADecoder::decode12(int size) {
-#ifdef USE_ZLIB
- if (_decompBuffer == NULL) {
- _decompBuffer = (byte *)malloc(_decompBufferSize);
- memset(_decompBuffer, 0, _decompBufferSize);
- if (_decompBuffer == NULL)
- error("Error allocating decomp buffer (size %u)", _decompBufferSize);
- }
- /* decompress the input data */
- decodeZlib(_decompBuffer, size, _decompBufferSize);
-
- byte *dat = _decompBuffer;
-
- memcpy(_frameBuffer2, _frameBuffer1, _frameSize);
-
- for (uint32 by = 0; by < _height; by += BLOCKH) {
- for (uint32 bx = 0; bx < _width; bx += BLOCKW) {
- byte type = *dat++;
- byte *b2 = _frameBuffer1 + bx + by * _width;
-
- switch (type) {
- case 0:
- break;
- case 10:
- case 11:
- case 12:
- case 13:
- case 14:
- case 15:
- case 1: {
- unsigned short diffMap;
- if (type >= 10 && type <= 15) {
- static const struct { uint8 sh1, sh2; } shiftTbl[6] = {
- {0, 0}, {8, 0}, {8, 8}, {8, 4}, {4, 0}, {4, 4}
- };
- diffMap = ((*dat & 0xF0) << shiftTbl[type-10].sh1) |
- ((*dat & 0x0F) << shiftTbl[type-10].sh2);
- dat++;
- } else {
- diffMap = *(unsigned short*)dat;
- dat += 2;
- }
-
- for (int yc = 0; yc < BLOCKH; yc++) {
- for (int xc = 0; xc < BLOCKW; xc++) {
- if (diffMap & 0x8000) {
- b2[xc] = *dat++;
- }
- diffMap <<= 1;
- }
- b2 += _width;
- }
- break;
- }
- case 2: {
- byte color = *dat++;
-
- for (int yc = 0; yc < BLOCKH; yc++) {
- for (int xc = 0; xc < BLOCKW; xc++) {
- b2[xc] = color;
- }
- b2 += _width;
- }
- break;
- }
- case 3: {
- for (int yc = 0; yc < BLOCKH; yc++) {
- for (int xc = 0; xc < BLOCKW; xc++) {
- b2[xc] = *dat++;
- }
- b2 += _width;
- }
- break;
- }
- case 4: {
- byte mbyte = *dat++;
- int mx = (mbyte >> 4) & 0x07;
- if (mbyte & 0x80)
- mx = -mx;
- int my = mbyte & 0x07;
- if (mbyte & 0x08)
- my = -my;
- byte *b1 = _frameBuffer2 + (bx+mx) + (by+my) * _width;
- for (int yc = 0; yc < BLOCKH; yc++) {
- memcpy(b2, b1, BLOCKW);
- b1 += _width;
- b2 += _width;
- }
- break;
- }
- case 5:
- break;
- default:
- error("decode12: Unknown type %d", type);
- }
- }
- }
-#endif
-}
-
-void DXADecoder::decode13(int size) {
-#ifdef USE_ZLIB
- uint8 *codeBuf, *dataBuf, *motBuf, *maskBuf;
-
- if (_decompBuffer == NULL) {
- _decompBuffer = (byte *)malloc(_decompBufferSize);
- memset(_decompBuffer, 0, _decompBufferSize);
- if (_decompBuffer == NULL)
- error("Error allocating decomp buffer (size %u)", _decompBufferSize);
- }
-
- /* decompress the input data */
- decodeZlib(_decompBuffer, size, _decompBufferSize);
-
- memcpy(_frameBuffer2, _frameBuffer1, _frameSize);
-
- int codeSize = _width * _curHeight / 16;
- int dataSize, motSize, maskSize;
-
- dataSize = READ_BE_UINT32(&_decompBuffer[0]);
- motSize = READ_BE_UINT32(&_decompBuffer[4]);
- maskSize = READ_BE_UINT32(&_decompBuffer[8]);
-
- codeBuf = &_decompBuffer[12];
- dataBuf = &codeBuf[codeSize];
- motBuf = &dataBuf[dataSize];
- maskBuf = &motBuf[motSize];
-
- for (uint32 by = 0; by < _curHeight; by += BLOCKH) {
- for (uint32 bx = 0; bx < _width; bx += BLOCKW) {
- uint8 type = *codeBuf++;
- uint8 *b2 = (uint8*)_frameBuffer1 + bx + by * _width;
-
- switch (type) {
- case 0:
- break;
-
- case 1: {
- uint16 diffMap = READ_BE_UINT16(maskBuf);
- maskBuf += 2;
-
- for (int yc = 0; yc < BLOCKH; yc++) {
- for (int xc = 0; xc < BLOCKW; xc++) {
- if (diffMap & 0x8000) {
- b2[xc] = *dataBuf++;
- }
- diffMap <<= 1;
- }
- b2 += _width;
- }
- break;
- }
- case 2: {
- uint8 color = *dataBuf++;
-
- for (int yc = 0; yc < BLOCKH; yc++) {
- for (int xc = 0; xc < BLOCKW; xc++) {
- b2[xc] = color;
- }
- b2 += _width;
- }
- break;
- }
- case 3: {
- for (int yc = 0; yc < BLOCKH; yc++) {
- for (int xc = 0; xc < BLOCKW; xc++) {
- b2[xc] = *dataBuf++;
- }
- b2 += _width;
- }
- break;
- }
- case 4: {
- uint8 mbyte = *motBuf++;
-
- int mx = (mbyte >> 4) & 0x07;
- if (mbyte & 0x80)
- mx = -mx;
- int my = mbyte & 0x07;
- if (mbyte & 0x08)
- my = -my;
-
- uint8 *b1 = (uint8*)_frameBuffer2 + (bx+mx) + (by+my) * _width;
- for (int yc = 0; yc < BLOCKH; yc++) {
- memcpy(b2, b1, BLOCKW);
- b1 += _width;
- b2 += _width;
- }
- break;
- }
- case 8: {
- static const int subX[4] = {0, 2, 0, 2};
- static const int subY[4] = {0, 0, 2, 2};
-
- uint8 subMask = *maskBuf++;
-
- for (int subBlock = 0; subBlock < 4; subBlock++) {
- int sx = bx + subX[subBlock], sy = by + subY[subBlock];
- b2 = (uint8*)_frameBuffer1 + sx + sy * _width;
- switch (subMask & 0xC0) {
- // 00: skip
- case 0x00:
- break;
- // 01: solid color
- case 0x40: {
- uint8 subColor = *dataBuf++;
- for (int yc = 0; yc < BLOCKH / 2; yc++) {
- for (int xc = 0; xc < BLOCKW / 2; xc++) {
- b2[xc] = subColor;
- }
- b2 += _width;
- }
- break;
- }
- // 02: motion vector
- case 0x80: {
- uint8 mbyte = *motBuf++;
-
- int mx = (mbyte >> 4) & 0x07;
- if (mbyte & 0x80)
- mx = -mx;
-
- int my = mbyte & 0x07;
- if (mbyte & 0x08)
- my = -my;
-
- uint8 *b1 = (uint8*)_frameBuffer2 + (sx+mx) + (sy+my) * _width;
- for (int yc = 0; yc < BLOCKH / 2; yc++) {
- memcpy(b2, b1, BLOCKW / 2);
- b1 += _width;
- b2 += _width;
- }
- break;
- }
- // 03: raw
- case 0xC0:
- for (int yc = 0; yc < BLOCKH / 2; yc++) {
- for (int xc = 0; xc < BLOCKW / 2; xc++) {
- b2[xc] = *dataBuf++;
- }
- b2 += _width;
- }
- break;
- }
- subMask <<= 2;
- }
- break;
- }
- case 32:
- case 33:
- case 34: {
- int count = type - 30;
- uint8 pixels[4];
-
- memcpy(pixels, dataBuf, count);
- dataBuf += count;
-
- if (count == 2) {
- uint16 code = READ_BE_UINT16(maskBuf);
- maskBuf += 2;
- for (int yc = 0; yc < BLOCKH; yc++) {
- for (int xc = 0; xc < BLOCKW; xc++) {
- b2[xc] = pixels[code & 1];
- code >>= 1;
- }
- b2 += _width;
- }
- } else {
- uint32 code = READ_BE_UINT32(maskBuf);
- maskBuf += 4;
- for (int yc = 0; yc < BLOCKH; yc++) {
- for (int xc = 0; xc < BLOCKW; xc++) {
- b2[xc] = pixels[code & 3];
- code >>= 2;
- }
- b2 += _width;
- }
- }
- break;
- }
- default:
- error("decode13: Unknown type %d", type);
- }
- }
- }
-#endif
-}
-
-const Surface *DXADecoder::decodeNextFrame() {
- uint32 tag = _fileStream->readUint32BE();
- if (tag == MKID_BE('CMAP')) {
- _fileStream->read(_palette, 256 * 3);
- _dirtyPalette = true;
- }
-
- tag = _fileStream->readUint32BE();
- if (tag == MKID_BE('FRAM')) {
- byte type = _fileStream->readByte();
- uint32 size = _fileStream->readUint32BE();
- if ((_inBuffer == NULL) || (_inBufferSize < size)) {
- free(_inBuffer);
- _inBuffer = (byte *)malloc(size);
- memset(_inBuffer, 0, size);
- if (_inBuffer == NULL)
- error("Error allocating input buffer (size %u)", size);
- _inBufferSize = size;
- }
-
- _fileStream->read(_inBuffer, size);
-
- switch (type) {
- case 2:
- decodeZlib(_frameBuffer1, size, _frameSize);
- break;
- case 3:
- decodeZlib(_frameBuffer2, size, _frameSize);
- break;
- case 12:
- decode12(size);
- break;
- case 13:
- decode13(size);
- break;
- default:
- error("decodeFrame: Unknown compression type %d", type);
- }
-
- if (type == 3) {
- for (uint32 j = 0; j < _curHeight; ++j) {
- for (uint32 i = 0; i < _width; ++i) {
- const int offs = j * _width + i;
- _frameBuffer1[offs] ^= _frameBuffer2[offs];
- }
- }
- }
- }
-
- switch (_scaleMode) {
- case S_INTERLACED:
- for (int cy = 0; cy < _curHeight; cy++) {
- memcpy(&_scaledBuffer[2 * cy * _width], &_frameBuffer1[cy * _width], _width);
- memset(&_scaledBuffer[((2 * cy) + 1) * _width], 0, _width);
- }
- _surface->pixels = _scaledBuffer;
- break;
- case S_DOUBLE:
- for (int cy = 0; cy < _curHeight; cy++) {
- memcpy(&_scaledBuffer[2 * cy * _width], &_frameBuffer1[cy * _width], _width);
- memcpy(&_scaledBuffer[((2 * cy) + 1) * _width], &_frameBuffer1[cy * _width], _width);
- }
- _surface->pixels = _scaledBuffer;
- break;
- case S_NONE:
- _surface->pixels = _frameBuffer1;
- break;
- }
-
- // Copy in the relevant info to the Surface
- _surface->w = getWidth();
- _surface->h = getHeight();
- _surface->pitch = getWidth();
-
- _curFrame++;
-
- if (_curFrame == 0)
- _startTime = g_system->getMillis();
-
- return _surface;
-}
-
-} // End of namespace Graphics
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