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-rw-r--r--engines/lab/anim.cpp49
-rw-r--r--engines/lab/anim.h3
-rw-r--r--engines/lab/dispman.cpp2
3 files changed, 22 insertions, 32 deletions
diff --git a/engines/lab/anim.cpp b/engines/lab/anim.cpp
index 2127e86aa1..9507e0a907 100644
--- a/engines/lab/anim.cpp
+++ b/engines/lab/anim.cpp
@@ -40,7 +40,6 @@ namespace Lab {
Anim::Anim(LabEngine *vm) : _vm(vm) {
_lastBlockHeader = 0;
- _curBit = 0;
_numChunks = 1;
_headerdata._width = 0;
_headerdata._height = 0;
@@ -82,17 +81,18 @@ void Anim::diffNextFrame(bool onlyDiffData) {
BitMap *disp = _vm->_graphics->_dispBitMap;
if (disp->_drawOnScreen)
- disp->_planes[0] = _vm->_graphics->getCurrentDrawingBuffer();
+ disp->_buffer = _vm->_graphics->getCurrentDrawingBuffer();
- disp->_planes[1] = disp->_planes[0] + 0x10000;
- disp->_planes[2] = disp->_planes[1] + 0x10000;
- disp->_planes[3] = disp->_planes[2] + 0x10000;
- disp->_planes[4] = disp->_planes[3] + 0x10000;
+ byte *endOfBuf = disp->_buffer + (int)_diffWidth * _diffHeight;
_vm->_event->mouseHide();
+ int curBit = 0;
+
while (1) {
- if (_curBit >= _numChunks) {
+ byte *buf = disp->_buffer + 0x10000 * curBit;
+
+ if (buf >= endOfBuf) {
_vm->_event->mouseShow();
if (!onlyDiffData) {
@@ -123,7 +123,6 @@ void Anim::diffNextFrame(bool onlyDiffData) {
_diffFileStart = _diffFile->pos();
_isAnim = (_frameNum >= 3) && (!_playOnce);
- _curBit = 0;
if (disp->_drawOnScreen)
_vm->_graphics->screenUpdate();
@@ -146,50 +145,50 @@ void Anim::diffNextFrame(bool onlyDiffData) {
case 10:
if (onlyDiffData) {
- if (_curBit > 0)
- error("diffNextFrame: attempt to read screen to non-zero plane (%d)", _curBit);
+ if (curBit > 0)
+ error("diffNextFrame: attempt to read screen to non-zero plane (%d)", curBit);
delete[] _scrollScreenBuffer;
_scrollScreenBuffer = new byte[_headerdata._width * _headerdata._height];
_diffFile->read(_scrollScreenBuffer, _size);
} else {
- _diffFile->read(disp->_planes[_curBit], _size);
+ _diffFile->read(buf, _size);
}
- _curBit++;
+ curBit++;
break;
case 11:
curPos = _diffFile->pos();
_diffFile->skip(4);
- _vm->_utils->runLengthDecode(disp->_planes[_curBit], _diffFile);
- _curBit++;
+ _vm->_utils->runLengthDecode(buf, _diffFile);
+ curBit++;
_diffFile->seek(curPos + _size, SEEK_SET);
break;
case 12:
curPos = _diffFile->pos();
_diffFile->skip(4);
- _vm->_utils->verticalRunLengthDecode(disp->_planes[_curBit], _diffFile, disp->_bytesPerRow);
- _curBit++;
+ _vm->_utils->verticalRunLengthDecode(buf, _diffFile, disp->_bytesPerRow);
+ curBit++;
_diffFile->seek(curPos + _size, SEEK_SET);
break;
case 20:
curPos = _diffFile->pos();
- _vm->_utils->unDiff(disp->_planes[_curBit], disp->_planes[_curBit], _diffFile, disp->_bytesPerRow, false);
- _curBit++;
+ _vm->_utils->unDiff(buf, buf, _diffFile, disp->_bytesPerRow, false);
+ curBit++;
_diffFile->seek(curPos + _size, SEEK_SET);
break;
case 21:
curPos = _diffFile->pos();
- _vm->_utils->unDiff(disp->_planes[_curBit], disp->_planes[_curBit], _diffFile, disp->_bytesPerRow, true);
- _curBit++;
+ _vm->_utils->unDiff(buf, buf, _diffFile, disp->_bytesPerRow, true);
+ curBit++;
_diffFile->seek(curPos + _size, SEEK_SET);
break;
case 25:
case 26:
- _curBit++;
+ curBit++;
break;
case 30:
@@ -264,7 +263,6 @@ void Anim::stopDiffEnd() {
void Anim::readDiff(Common::File *diffFile, bool playOnce, bool onlyDiffData) {
_playOnce = playOnce;
_delayMicros = 0;
- _curBit = 0;
_frameNum = 0;
_numChunks = 1;
_donePal = false;
@@ -323,13 +321,6 @@ void Anim::readDiff(Common::File *diffFile, bool playOnce, bool onlyDiffData) {
_diffHeight = _headerdata._height;
_vm->_utils->setBytesPerRow(_diffWidth);
- _numChunks = (((int32)_diffWidth) * _diffHeight) / 0x10000;
-
- if ((uint32)(_numChunks * 0x10000) < (uint32)(((int32)_diffWidth) * _diffHeight))
- _numChunks++;
-
- assert(_numChunks < 16);
-
delete[] _scrollScreenBuffer;
_scrollScreenBuffer = nullptr;
diff --git a/engines/lab/anim.h b/engines/lab/anim.h
index db2e23e9b5..de14035838 100644
--- a/engines/lab/anim.h
+++ b/engines/lab/anim.h
@@ -46,7 +46,7 @@ struct DIFFHeader {
struct BitMap {
uint16 _bytesPerRow;
bool _drawOnScreen;
- byte *_planes[16];
+ byte *_buffer;
};
class Anim {
@@ -54,7 +54,6 @@ private:
LabEngine *_vm;
uint32 _lastBlockHeader;
- uint16 _curBit;
uint16 _numChunks;
uint32 _delayMicros;
bool _continuous;
diff --git a/engines/lab/dispman.cpp b/engines/lab/dispman.cpp
index 880867548a..2f376ac473 100644
--- a/engines/lab/dispman.cpp
+++ b/engines/lab/dispman.cpp
@@ -98,7 +98,7 @@ void DisplayMan::readPict(const Common::String filename, bool playOnce, bool onl
_dispBitMap->_bytesPerRow = _screenWidth;
_dispBitMap->_drawOnScreen = (memoryBuffer == nullptr);
if (memoryBuffer)
- _dispBitMap->_planes[0] = memoryBuffer;
+ _dispBitMap->_buffer = memoryBuffer;
_vm->_anim->readDiff(_curBitmap, playOnce, onlyDiffData);
}