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-rw-r--r--engines/scumm/gfx.cpp119
-rw-r--r--engines/scumm/gfx.h61
-rw-r--r--engines/scumm/scumm.cpp6
3 files changed, 113 insertions, 73 deletions
diff --git a/engines/scumm/gfx.cpp b/engines/scumm/gfx.cpp
index 7dfd91bd59..05d0476467 100644
--- a/engines/scumm/gfx.cpp
+++ b/engines/scumm/gfx.cpp
@@ -194,9 +194,7 @@ static const TransitionEffect transitionEffects[6] = {
#endif
-Gdi::Gdi(ScummEngine *vm) {
- _vm = vm;
-
+Gdi::Gdi(ScummEngine *vm) : _vm(vm) {
_numZBuffer = 0;
memset(_imgBufOffs, 0, sizeof(_imgBufOffs));
_numStrips = 0;
@@ -210,10 +208,13 @@ Gdi::Gdi(ScummEngine *vm) {
_zbufferDisabled = false;
_objectMode = false;
memset(&_C64, 0, sizeof(_C64));
- memset(&_NES, 0, sizeof(_NES));
_roomStrips = 0;
}
+GdiNES::GdiNES(ScummEngine *vm) : Gdi(vm) {
+ memset(&_NES, 0, sizeof(_NES));
+}
+
Gdi::~Gdi() {
free(_roomStrips);
}
@@ -240,19 +241,15 @@ void Gdi::init() {
void Gdi::roomChanged(byte *roomptr, uint32 IM00_offs, byte transparentColor) {
if (_vm->_game.version <= 1) {
- if (_vm->_game.platform == Common::kPlatformNES) {
- decodeNESGfx(roomptr);
- } else {
- for (int i = 0; i < 4; i++){
- _C64.colors[i] = roomptr[6 + i];
- }
- decodeC64Gfx(roomptr + READ_LE_UINT16(roomptr + 10), _C64.charMap, 2048);
- decodeC64Gfx(roomptr + READ_LE_UINT16(roomptr + 12), _C64.picMap, roomptr[4] * roomptr[5]);
- decodeC64Gfx(roomptr + READ_LE_UINT16(roomptr + 14), _C64.colorMap, roomptr[4] * roomptr[5]);
- decodeC64Gfx(roomptr + READ_LE_UINT16(roomptr + 16), _C64.maskMap, roomptr[4] * roomptr[5]);
- decodeC64Gfx(roomptr + READ_LE_UINT16(roomptr + 18) + 2, _C64.maskChar, READ_LE_UINT16(roomptr + READ_LE_UINT16(roomptr + 18)));
- _objectMode = true;
- }
+ for (int i = 0; i < 4; i++){
+ _C64.colors[i] = roomptr[6 + i];
+ }
+ decodeC64Gfx(roomptr + READ_LE_UINT16(roomptr + 10), _C64.charMap, 2048);
+ decodeC64Gfx(roomptr + READ_LE_UINT16(roomptr + 12), _C64.picMap, roomptr[4] * roomptr[5]);
+ decodeC64Gfx(roomptr + READ_LE_UINT16(roomptr + 14), _C64.colorMap, roomptr[4] * roomptr[5]);
+ decodeC64Gfx(roomptr + READ_LE_UINT16(roomptr + 16), _C64.maskMap, roomptr[4] * roomptr[5]);
+ decodeC64Gfx(roomptr + READ_LE_UINT16(roomptr + 18) + 2, _C64.maskChar, READ_LE_UINT16(roomptr + READ_LE_UINT16(roomptr + 18)));
+ _objectMode = true;
} else if (_vm->_game.version == 2) {
_roomStrips = generateStripTable(roomptr + IM00_offs, _vm->_roomWidth, _vm->_roomHeight, _roomStrips);
}
@@ -260,6 +257,10 @@ void Gdi::roomChanged(byte *roomptr, uint32 IM00_offs, byte transparentColor) {
_transparentColor = transparentColor;
}
+void GdiNES::roomChanged(byte *roomptr, uint32 IM00_offs, byte transparentColor) {
+ decodeNESGfx(roomptr);
+ _transparentColor = transparentColor;
+}
#pragma mark -
#pragma mark --- Virtual Screens ---
@@ -1435,6 +1436,19 @@ int Gdi::getZPlanes(const byte *ptr, const byte *zplane_list[9], bool bmapImage)
return numzbuf;
}
+void Gdi::prepareDrawBitmap(const byte *ptr, int x, int y, const int width, const int height) {
+ if (_objectMode && _vm->_game.version <= 1) {
+ decodeC64Gfx(ptr, _C64.objectMap, (width / 8) * (height / 8) * 3);
+ }
+}
+
+void GdiNES::prepareDrawBitmap(const byte *ptr, int x, int y, const int width, const int height) {
+ if (_objectMode) {
+ decodeNESObject(ptr, x, y, width, height);
+ }
+}
+
+
/**
* Draw a bitmap onto a virtual screen. This is main drawing method for room backgrounds
* and objects, used throughout all SCUMM versions.
@@ -1457,14 +1471,8 @@ void Gdi::drawBitmap(const byte *ptr, VirtScreen *vs, int x, int y, const int wi
const bool lightsOn = _vm->isLightOn();
_objectMode = (flag & dbObjectMode) == dbObjectMode;
-
- if (_objectMode && _vm->_game.version <= 1) {
- if (_vm->_game.platform == Common::kPlatformNES) {
- decodeNESObject(ptr, x, y, width, height);
- } else {
- decodeC64Gfx(ptr, _C64.objectMap, (width / 8) * (height / 8) * 3);
- }
- }
+
+ prepareDrawBitmap(ptr, x, y, width, height);
CHECK_HEAP;
if (_vm->_game.features & GF_SMALL_HEADER) {
@@ -1540,6 +1548,10 @@ void Gdi::drawBitmap(const byte *ptr, VirtScreen *vs, int x, int y, const int wi
transpStrip = drawStrip(dstPtr, vs, x, y, width, height, stripnr, smap_ptr);
+ // COMI and HE games only uses flag value
+ if (_vm->_game.version == 8 || _vm->_game.heversion >= 60)
+ transpStrip = true;
+
CHECK_HEAP;
if (vs->hasTwoBuffers) {
byte *frontBuf = (byte *)vs->pixels + y * vs->pitch + x * 8;
@@ -1550,21 +1562,17 @@ void Gdi::drawBitmap(const byte *ptr, VirtScreen *vs, int x, int y, const int wi
}
CHECK_HEAP;
- // COMI and HE games only uses flag value
- if (_vm->_game.version == 8 || _vm->_game.heversion >= 60)
- transpStrip = true;
-
decodeMask(x, y, width, height, stripnr, numzbuf, zplane_list, transpStrip, flag, tmsk_ptr);
-#if 0
+#if 1
// HACK: blit mask(s) onto normal screen. Useful to debug masking
- for (i = 0; i < numzbuf; i++) {
+ for (int i = 0; i < numzbuf; i++) {
byte *dst1, *dst2;
- dst1 = dst2 = (byte *)vs->pixels + y * vs->pitch + x) * 8;
+ dst1 = dst2 = (byte *)vs->pixels + y * vs->pitch + x * 8;
if (vs->hasTwoBuffers)
dst2 = vs->backBuf + y * vs->pitch + x * 8;
- mask_ptr = getMaskBuffer(x, y, i);
+ byte *mask_ptr = getMaskBuffer(x, y, i);
for (int h = 0; h < height; h++) {
int maskbits = *mask_ptr;
@@ -1584,15 +1592,10 @@ void Gdi::drawBitmap(const byte *ptr, VirtScreen *vs, int x, int y, const int wi
bool Gdi::drawStrip(byte *dstPtr, VirtScreen *vs, int x, int y, const int width, const int height,
int stripnr, const byte *smap_ptr) {
- byte *mask_ptr;
bool transpStrip = false;
if (_vm->_game.version <= 1) {
- if (_vm->_game.platform == Common::kPlatformNES) {
- mask_ptr = getMaskBuffer(x, y, 1);
- drawStripNES(dstPtr, mask_ptr, vs->pitch, stripnr, y, height);
- }
- else if (_objectMode)
+ if (_objectMode)
drawStripC64Object(dstPtr, vs->pitch, stripnr, width, height);
else
drawStripC64Background(dstPtr, vs->pitch, stripnr, height);
@@ -1633,11 +1636,7 @@ void Gdi::decodeMask(int x, int y, const int width, const int height,
if (_vm->_game.version <= 1) {
mask_ptr = getMaskBuffer(x, y, 1);
- if (_vm->_game.platform == Common::kPlatformNES) {
- drawStripNESMask(mask_ptr, stripnr, y, height);
- } else {
- drawStripC64Mask(mask_ptr, stripnr, width, height);
- }
+ drawStripC64Mask(mask_ptr, stripnr, width, height);
} else if (_vm->_game.version == 2) {
// Do nothing here for V2 games - zplane was already handled.
} else if (flag & dbDrawMaskOnAll) {
@@ -1709,6 +1708,21 @@ void Gdi::decodeMask(int x, int y, const int width, const int height,
}
}
+bool GdiNES::drawStrip(byte *dstPtr, VirtScreen *vs, int x, int y, const int width, const int height,
+ int stripnr, const byte *smap_ptr) {
+ byte *mask_ptr = getMaskBuffer(x, y, 1);
+ drawStripNES(dstPtr, mask_ptr, vs->pitch, stripnr, y, height);
+
+ return false;
+}
+
+void GdiNES::decodeMask(int x, int y, const int width, const int height,
+ int stripnr, int numzbuf, const byte *zplane_list[9],
+ bool transpStrip, byte flag, const byte *tmsk_ptr) {
+ byte *mask_ptr = getMaskBuffer(x, y, 1);
+ drawStripNESMask(mask_ptr, stripnr, y, height);
+}
+
#ifndef DISABLE_HE
/**
* Draw a bitmap onto a virtual screen. This is main drawing method for room backgrounds
@@ -2146,7 +2160,7 @@ void Gdi::decompressMaskImgOr(byte *dst, const byte *src, int height) const {
}
}
-void decodeNESTileData(const byte *src, byte *dest) {
+static void decodeNESTileData(const byte *src, byte *dest) {
int len = READ_LE_UINT16(src); src += 2;
const byte *end = src + len;
src++; // skip number-of-tiles byte, assume it is correct
@@ -2170,6 +2184,7 @@ static const int v1MMNEScostTables[2][6] = {
{ 25, 27, 29, 31, 33, 35},
{ 26, 28, 30, 32, 34, 36}
};
+
void ScummEngine::NES_loadCostumeSet(int n) {
int i;
_NESCostumeSet = n;
@@ -2191,7 +2206,7 @@ void ScummEngine::NES_loadCostumeSet(int n) {
}
-void Gdi::decodeNESGfx(const byte *room) {
+void GdiNES::decodeNESGfx(const byte *room) {
const byte *gdata = room + READ_LE_UINT16(room + 0x0A);
int tileset = *gdata++;
int width = READ_LE_UINT16(room + 0x04);
@@ -2267,7 +2282,7 @@ void Gdi::decodeNESGfx(const byte *room) {
memcpy(_NES.masktableObj, _NES.masktable, 16*8);
}
-void Gdi::decodeNESObject(const byte *ptr, int xpos, int ypos, int width, int height) {
+void GdiNES::decodeNESObject(const byte *ptr, int xpos, int ypos, int width, int height) {
int x, y;
_NES.objX = xpos;
@@ -2331,8 +2346,7 @@ void Gdi::decodeNESObject(const byte *ptr, int xpos, int ypos, int width, int he
lmask = *ptr++;
rmask = *ptr++;
- y = 0;
- do {
+ for (y = 0; y < height; ++y) {
byte *dest = &_NES.masktableObj[y + ypos][mx];
*dest = (*dest & lmask) | *ptr++;
dest++;
@@ -2343,11 +2357,10 @@ void Gdi::decodeNESObject(const byte *ptr, int xpos, int ypos, int width, int he
*dest = *ptr++;
dest++;
}
- y++;
- } while (y < height);
+ }
}
-void Gdi::drawStripNES(byte *dst, byte *mask, int dstPitch, int stripnr, int top, int height) {
+void GdiNES::drawStripNES(byte *dst, byte *mask, int dstPitch, int stripnr, int top, int height) {
top /= 8;
height /= 8;
int x = stripnr + 2; // NES version has a 2 tile gap on each edge
@@ -2374,7 +2387,7 @@ void Gdi::drawStripNES(byte *dst, byte *mask, int dstPitch, int stripnr, int top
}
}
-void Gdi::drawStripNESMask(byte *dst, int stripnr, int top, int height) const {
+void GdiNES::drawStripNESMask(byte *dst, int stripnr, int top, int height) const {
top /= 8;
height /= 8;
int x = stripnr; // masks, unlike room graphics, should NOT be adjusted
diff --git a/engines/scumm/gfx.h b/engines/scumm/gfx.h
index 8663acf99a..415e40c6bc 100644
--- a/engines/scumm/gfx.h
+++ b/engines/scumm/gfx.h
@@ -190,6 +190,7 @@ struct StripTable;
#define CHARSET_MASK_TRANSPARENCY 253
class Gdi {
+protected:
ScummEngine *_vm;
public:
@@ -197,9 +198,6 @@ public:
int _imgBufOffs[8];
int32 _numStrips;
- Gdi(ScummEngine *vm);
- virtual ~Gdi();
-
protected:
byte _paletteMod;
byte *_roomPalette;
@@ -219,14 +217,6 @@ protected:
byte maskMap[4096], maskChar[4096];
} _C64;
- struct {
- byte nametable[16][64], nametableObj[16][64];
- byte attributes[64], attributesObj[64];
- byte masktable[16][8], masktableObj[16][8];
- int objX;
- bool hasmask;
- } _NES;
-
/** For V2 games, we cache offsets into the room graphics, to speed up things. */
StripTable *_roomStrips;
@@ -236,7 +226,6 @@ protected:
void drawStripEGA(byte *dst, int dstPitch, const byte *src, int height) const;
void drawStripC64Object(byte *dst, int dstPitch, int stripnr, int width, int height);
void drawStripC64Background(byte *dst, int dstPitch, int stripnr, int height);
- void drawStripNES(byte *dst, byte *mask, int dstPitch, int stripnr, int top, int height);
void drawStripComplex(byte *dst, int dstPitch, const byte *src, int height, const bool transpCheck) const;
void drawStripBasicH(byte *dst, int dstPitch, const byte *src, int height, const bool transpCheck) const;
@@ -253,7 +242,6 @@ protected:
/* Mask decompressors */
void drawStripC64Mask(byte *dst, int stripnr, int width, int height) const;
- void drawStripNESMask(byte *dst, int stripnr, int top, int height) const;
void decompressTMSK(byte *dst, const byte *tmsk, const byte *src, int height) const;
void decompressMaskImgOr(byte *dst, const byte *src, int height) const;
void decompressMaskImg(byte *dst, const byte *src, int height) const;
@@ -275,17 +263,18 @@ protected:
int stripnr, int numzbuf, const byte *zplane_list[9],
bool transpStrip, byte flag, const byte *tmsk_ptr);
+ virtual void prepareDrawBitmap(const byte *ptr, int x, int y, const int width, const int height);
+
public:
- void init();
- void roomChanged(byte *roomptr, uint32 IM00_offs, byte transparentColor);
+ Gdi(ScummEngine *vm);
+ virtual ~Gdi();
+
+ virtual void init();
+ virtual void roomChanged(byte *roomptr, uint32 IM00_offs, byte transparentColor);
void drawBitmap(const byte *ptr, VirtScreen *vs, int x, int y, const int width, const int height,
int stripnr, int numstrip, byte flag);
- void decodeNESGfx(const byte *room);
- void decodeNESObject(const byte *ptr, int xpos, int ypos, int width, int height);
-
-
#ifndef DISABLE_HE
void drawBMAPBg(const byte *ptr, VirtScreen *vs);
void drawBMAPObject(const byte *ptr, VirtScreen *vs, int obj, int x, int y, int w, int h);
@@ -304,6 +293,40 @@ public:
};
};
+class GdiNES : public Gdi {
+protected:
+ //ScummEngine *_vm;
+
+ struct {
+ byte nametable[16][64], nametableObj[16][64];
+ byte attributes[64], attributesObj[64];
+ byte masktable[16][8], masktableObj[16][8];
+ int objX;
+ bool hasmask;
+ } _NES;
+
+ void decodeNESGfx(const byte *room);
+ void decodeNESObject(const byte *ptr, int xpos, int ypos, int width, int height);
+
+ void drawStripNES(byte *dst, byte *mask, int dstPitch, int stripnr, int top, int height);
+ void drawStripNESMask(byte *dst, int stripnr, int top, int height) const;
+
+ virtual bool drawStrip(byte *dstPtr, VirtScreen *vs,
+ int x, int y, const int width, const int height,
+ int stripnr, const byte *smap_ptr);
+
+ virtual void decodeMask(int x, int y, const int width, const int height,
+ int stripnr, int numzbuf, const byte *zplane_list[9],
+ bool transpStrip, byte flag, const byte *tmsk_ptr);
+
+ virtual void prepareDrawBitmap(const byte *ptr, int x, int y, const int width, const int height);
+
+public:
+ GdiNES(ScummEngine *vm);
+
+ virtual void roomChanged(byte *roomptr, uint32 IM00_offs, byte transparentColor);
+};
+
} // End of namespace Scumm
diff --git a/engines/scumm/scumm.cpp b/engines/scumm/scumm.cpp
index ef258efbf4..c82bd30fcb 100644
--- a/engines/scumm/scumm.cpp
+++ b/engines/scumm/scumm.cpp
@@ -87,7 +87,11 @@ ScummEngine::ScummEngine(OSystem *syst, const DetectorResult &dr)
_currentScript(0xFF), // Let debug() work on init stage
_pauseDialog(0), _mainMenuDialog(0), _versionDialog(0) {
- _gdi = new Gdi(this);
+ if (_game.platform == Common::kPlatformNES) {
+ _gdi = new GdiNES(this);
+ } else {
+ _gdi = new Gdi(this);
+ }
_res = new ResourceManager(this);
// Copy MD5 checksum
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-25 15:20:30 +0000