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Diffstat (limited to 'engines/mortevielle/graphics.cpp')
-rw-r--r--engines/mortevielle/graphics.cpp110
1 files changed, 59 insertions, 51 deletions
diff --git a/engines/mortevielle/graphics.cpp b/engines/mortevielle/graphics.cpp
index 5099504536..4be270ffa6 100644
--- a/engines/mortevielle/graphics.cpp
+++ b/engines/mortevielle/graphics.cpp
@@ -72,6 +72,8 @@ void GfxSurface::decode(const byte *pSrc) {
// Temporary output buffer
byte outputBuffer[65536];
+ Common::fill(&outputBuffer[0], &outputBuffer[65536], 0);
+
byte *pDest = &outputBuffer[0];
const byte *pSrcStart = pSrc;
const byte *pLookup = NULL;
@@ -80,7 +82,7 @@ void GfxSurface::decode(const byte *pSrc) {
byte srcBuffer[BUFFER_SIZE];
// Main processing loop
- do {
+ for (int entryIndex = 0; entryIndex < entryCount; ++entryIndex) {
int lookupBytes = READ_BE_UINT16(pSrc);
int srcSize = READ_BE_UINT16(pSrc + 2);
_xp = READ_BE_UINT16(pSrc + 4) - _xOffset;
@@ -228,7 +230,8 @@ void GfxSurface::decode(const byte *pSrc) {
*pDest = csuiv(pSrc, pLookup);
}
} else {
- for (int yCtr = 0; yCtr < _ySize; ++yCtr, pDest -= DEFAULT_WIDTH) {
+ for (int yCtr = 0; yCtr < _ySize; ++yCtr) {
+ pDest -= DEFAULT_WIDTH;
*pDest = csuiv(pSrc, pLookup);
}
}
@@ -293,8 +296,8 @@ void GfxSurface::decode(const byte *pSrc) {
case 12:
INCR_TAIX;
- _thickness = _var22 = 1;
- _var1E = 320;
+ _thickness = _xInc = 1;
+ _yInc = DEFAULT_WIDTH;
_var20 = _ySize;
_var24 = _xSize;
diag(pSrc, pDest, pLookup);
@@ -303,17 +306,17 @@ void GfxSurface::decode(const byte *pSrc) {
case 13:
INCR_TAIX;
_thickness = _xSize;
- _var1E = 1;
+ _yInc = 1;
_var20 = _xSize;
- _var22 = 320;
+ _xInc = DEFAULT_WIDTH;
_var24 = _ySize;
diag(pSrc, pDest, pLookup);
break;
case 14:
- _thickness = _var1E = 1;
+ _thickness = _yInc = 1;
_var20 = _xSize;
- _var22 = 320;
+ _xInc = DEFAULT_WIDTH;
_var24 = _ySize;
diag(pSrc, pDest, pLookup);
break;
@@ -321,18 +324,18 @@ void GfxSurface::decode(const byte *pSrc) {
case 15:
INCR_TAIX;
_thickness = 2;
- _var1E = 320;
+ _yInc = DEFAULT_WIDTH;
_var20 = _ySize;
- _var22 = 1;
+ _xInc = 1;
_var24 = _xSize;
diag(pSrc, pDest, pLookup);
break;
case 16:
_thickness = 3;
- _var1E = 1;
+ _yInc = 1;
_var20 = _xSize;
- _var22 = 320;
+ _xInc = DEFAULT_WIDTH;
_var24 = _ySize;
diag(pSrc, pDest, pLookup);
break;
@@ -340,9 +343,9 @@ void GfxSurface::decode(const byte *pSrc) {
case 17:
INCR_TAIX;
_thickness = 3;
- _var1E = 320;
+ _yInc = DEFAULT_WIDTH;
_var20 = _ySize;
- _var22 = 1;
+ _xInc = 1;
_var24 = _xSize;
diag(pSrc, pDest, pLookup);
break;
@@ -350,16 +353,18 @@ void GfxSurface::decode(const byte *pSrc) {
case 18:
INCR_TAIX;
_thickness = 5;
- _var1E = 320;
+ _yInc = DEFAULT_WIDTH;
_var20 = _ySize;
- _var22 = 1;
+ _xInc = 1;
_var24 = _xSize;
diag(pSrc, pDest, pLookup);
break;
}
pSrc = pSrcStart;
- } while (--entryCount > 0);
+ debugC(1, kMortevielleGraphics, "Decoding image block %d position %d,%d size %d,%d method %d",
+ entryIndex + 1, _xp, _yp, _width, _height, decomIndex);
+ }
// At this point, the outputBuffer has the data for the image. Initialise the surface
// with the calculated size for the full image, and copy the lines to the surface
@@ -519,65 +524,66 @@ void GfxSurface::vertical(const byte *&pSrc, byte *&pDest, const byte *&pLookup)
for (;;) {
// Reduce thickness as necessary
- while ((var28 + _thickness) >= _xSize) {
+ while ((var28 + _thickness) > _xSize) {
if (--_thickness == 0)
return;
}
// Loop
- for (int idx = 0; idx < _thickness; ++idx) {
- if ((idx % 2) == 0) {
- if (idx > 0)
- pDest -= DEFAULT_WIDTH;
+ for (int yCtr = 0; yCtr < _ySize; ++yCtr) {
+ if ((yCtr % 2) == 0) {
+ if (yCtr > 0)
+ pDest += DEFAULT_WIDTH;
- // Write out horizontal slice left to right
var28 += _thickness;
- for (int xIndex = 0; xIndex < _thickness; ++xIndex)
- *pDest++ = suiv(pSrc);
+ for (int xCtr = 0; xCtr < _thickness; ++xCtr)
+ *pDest++ = csuiv(pSrc, pLookup);
} else {
- // Write out horizontal slice right to left
pDest += DEFAULT_WIDTH;
var28 -= _thickness;
- for (int xIndex = 0; xIndex < _thickness; ++xIndex)
- *pDest-- = csuiv(pSrc, pLookup);
+ for (int xCtr = 0; xCtr < _thickness; ++xCtr)
+ *--pDest = csuiv(pSrc, pLookup);
}
}
- if ((_thickness % 2) == 0) {
+ if ((_ySize % 2) == 0) {
pDest += _thickness;
var28 += _thickness;
}
-
- // Reduce thickness as necessary
- while ((var28 + _thickness) < _xSize) {
+
+ while (_xSize < (var28 + _thickness)) {
if (--_thickness == 0)
return;
}
- for (int yIndex = 0; yIndex < _ySize; ++yIndex) {
- if ((yIndex % 2) == 0) {
- if (yIndex > 0)
+ // Loop
+ for (int yCtr = 0; yCtr < _ySize; ++yCtr) {
+ if ((yCtr % 2) == 0) {
+ if (yCtr > 0)
pDest -= DEFAULT_WIDTH;
- // Draw horizontal slice
var28 += _thickness;
- for (int xIndex = 0; xIndex < _thickness; ++xIndex)
- *pDest++ = suiv(pSrc);
+ for (int xCtr = 0; xCtr < _thickness; ++xCtr)
+ *pDest++ = csuiv(pSrc, pLookup);
} else {
pDest -= DEFAULT_WIDTH;
var28 -= _thickness;
- for (int xIndex = 0; xIndex < _thickness; ++xIndex)
- *pDest-- = csuiv(pSrc, pLookup);
+ for (int xCtr = 0; xCtr < _thickness; ++xCtr)
+ *--pDest = csuiv(pSrc, pLookup);
}
+ }
+ if ((_ySize % 2) == 0) {
+ pDest += _thickness;
+ var28 += _thickness;
}
}
}
void GfxSurface::decom11(const byte *&pSrc, byte *&pDest, const byte *&pLookup) {
int var26 = 0, var28 = 0;
- _var1E = DEFAULT_WIDTH;
- _var22 = -1;
+ _yInc = DEFAULT_WIDTH;
+ _xInc = -1;
--_xSize;
--_ySize;
@@ -680,7 +686,7 @@ void GfxSurface::diag(const byte *&pSrc, byte *&pDest, const byte *&pLookup) {
}
NIV();
- pDest += _var1E;
+ pDest += _yInc;
for (int idx = 0; idx <= _thickness; ++idx) {
*pDest = csuiv(pSrc, pLookup);
@@ -698,7 +704,8 @@ void GfxSurface::diag(const byte *&pSrc, byte *&pDest, const byte *&pLookup) {
break;
}
- pDest += _var22;
+ pDest += _xInc;
+ ++var28;
if (_var24 < (var28 + 1)) {
TF2(pSrc, pDest, pLookup, var26);
break;
@@ -706,7 +713,7 @@ void GfxSurface::diag(const byte *&pSrc, byte *&pDest, const byte *&pLookup) {
}
if (TFP(var26))
- return;
+ break;
for (;;) {
for (int idx = 0; idx <= _thickness; ++idx) {
@@ -716,6 +723,7 @@ void GfxSurface::diag(const byte *&pSrc, byte *&pDest, const byte *&pLookup) {
}
NIV();
+ pDest += _yInc;
for (int idx = 0; idx <= _thickness; ++idx) {
*pDest = csuiv(pSrc, pLookup);
@@ -732,7 +740,7 @@ void GfxSurface::diag(const byte *&pSrc, byte *&pDest, const byte *&pLookup) {
NIH();
break;
} else {
- pDest += _var22;
+ pDest += _xInc;
if (--var28 == 0) {
TF2(pSrc, pDest, pLookup, var26);
@@ -748,15 +756,15 @@ void GfxSurface::diag(const byte *&pSrc, byte *&pDest, const byte *&pLookup) {
void GfxSurface::increments(byte *&pDest) {
- pDest += _var22 + _var1E;
+ pDest += _xInc + _yInc;
}
void GfxSurface::NIH() {
- _var22 = -_var22;
+ _xInc = -_xInc;
}
void GfxSurface::NIV() {
- _var1E = -_var1E;
+ _yInc = -_yInc;
}
bool GfxSurface::TFP(int v) {
@@ -773,7 +781,7 @@ bool GfxSurface::TFP(int v) {
void GfxSurface::TF1(byte *&pDest, int &v) {
v += _thickness + 1;
- pDest += (_thickness + 1) * _var1E;
+ pDest += (_thickness + 1) * _yInc;
}
void GfxSurface::TF2(const byte *&pSrc, byte *&pDest, const byte *&pLookup, int &v) {
@@ -781,7 +789,7 @@ void GfxSurface::TF2(const byte *&pSrc, byte *&pDest, const byte *&pLookup, int
for (int idx = 0; idx <= _thickness; ++idx) {
*pDest = csuiv(pSrc, pLookup);
- pDest += _var1E;
+ pDest += _yInc;
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-18 18:46:40 +0000