aboutsummaryrefslogtreecommitdiff
path: root/engines/adl
diff options
context:
space:
mode:
Diffstat (limited to 'engines/adl')
-rw-r--r--engines/adl/display.cpp3
-rw-r--r--engines/adl/graphics.cpp112
-rw-r--r--engines/adl/graphics.h19
-rw-r--r--engines/adl/hires5.cpp2
4 files changed, 96 insertions, 40 deletions
diff --git a/engines/adl/display.cpp b/engines/adl/display.cpp
index feef8fb2a4..e18de6adae 100644
--- a/engines/adl/display.cpp
+++ b/engines/adl/display.cpp
@@ -330,6 +330,9 @@ void Display::showCursor(bool enable) {
}
void Display::writeFrameBuffer(const Common::Point &p, byte color, byte mask) {
+ if (p.x >= DISPLAY_WIDTH || p.y >= DISPLAY_HEIGHT)
+ return;
+
byte *b = _frameBuf + p.y * DISPLAY_PITCH + p.x / 7;
color ^= *b;
color &= mask;
diff --git a/engines/adl/graphics.cpp b/engines/adl/graphics.cpp
index f550f3a177..47ef5744fa 100644
--- a/engines/adl/graphics.cpp
+++ b/engines/adl/graphics.cpp
@@ -303,39 +303,57 @@ static byte getPatternColor(const Common::Point &p, byte pattern) {
return fillPatterns[pattern][offset % PATTERN_LEN];
}
-void Graphics_v2::fillRow(const Common::Point &p, bool stopBit, byte pattern) {
- const byte color = getPatternColor(p, pattern);
- _display.setPixelPalette(p, color);
- _display.setPixelBit(p, color);
+bool Graphics_v2::canFillAt(const Common::Point &p, const bool stopBit) {
+ return _display.getPixelBit(p) != stopBit && _display.getPixelBit(Common::Point(p.x + 1, p.y)) != stopBit;
+}
- Common::Point q(p);
- byte c = color;
+void Graphics_v2::fillRowLeft(Common::Point p, const byte pattern, const bool stopBit) {
+ byte color = getPatternColor(p, pattern);
- while (++q.x < DISPLAY_WIDTH) {
- if ((q.x % 7) == 0) {
- c = getPatternColor(q, pattern);
- // Palette is set before the first bit is tested
- _display.setPixelPalette(q, c);
+ while (--p.x >= 0) {
+ if ((p.x % 7) == 6) {
+ color = getPatternColor(p, pattern);
+ _display.setPixelPalette(p, color);
}
- if (_display.getPixelBit(q) == stopBit)
+ if (_display.getPixelBit(p) == stopBit)
break;
- _display.setPixelBit(q, c);
+ _display.setPixelBit(p, color);
}
+}
+
+void Graphics_v2::fillRow(Common::Point p, const byte pattern, const bool stopBit) {
+ // Set pixel at p and palette
+ byte color = getPatternColor(p, pattern);
+ _display.setPixelPalette(p, color);
+ _display.setPixelBit(p, color);
- q = p;
- c = color;
- while (--q.x >= 0) {
- if ((q.x % 7) == 6) {
- c = getPatternColor(q, pattern);
- _display.setPixelPalette(q, c);
+ // Fill left of p
+ fillRowLeft(p, pattern, stopBit);
+
+ // Fill right of p
+ while (++p.x < DISPLAY_WIDTH) {
+ if ((p.x % 7) == 0) {
+ color = getPatternColor(p, pattern);
+ // Palette is set before the first bit is tested
+ _display.setPixelPalette(p, color);
}
- if (_display.getPixelBit(q) == stopBit)
+ if (_display.getPixelBit(p) == stopBit)
break;
- _display.setPixelBit(q, c);
+ _display.setPixelBit(p, color);
}
}
-// Basic flood fill
+void Graphics_v2::fillAt(Common::Point p, const byte pattern) {
+ const bool stopBit = !_display.getPixelBit(p);
+
+ // Move up into the open space above p
+ while (--p.y >= 0 && canFillAt(p, stopBit));
+
+ // Then fill by moving down
+ while (++p.y < DISPLAY_HEIGHT && canFillAt(p, stopBit))
+ fillRow(p, pattern, stopBit);
+}
+
void Graphics_v2::fill(Common::SeekableReadStream &pic) {
byte pattern;
READ_BYTE(pattern);
@@ -344,22 +362,7 @@ void Graphics_v2::fill(Common::SeekableReadStream &pic) {
Common::Point p;
READ_POINT(p);
- bool stopBit = !_display.getPixelBit(p);
-
- while (--p.y >= 0) {
- if (_display.getPixelBit(p) == stopBit)
- break;
- if (_display.getPixelBit(Common::Point(p.x + 1, p.y)) == stopBit)
- break;
- }
-
- while (++p.y < DISPLAY_HEIGHT) {
- if (_display.getPixelBit(p) == stopBit)
- break;
- if (_display.getPixelBit(Common::Point(p.x + 1, p.y)) == stopBit)
- break;
- fillRow(p, stopBit, pattern);
- }
+ fillAt(p, pattern);
}
}
@@ -424,4 +427,37 @@ void Graphics_v2::drawPic(Common::SeekableReadStream &pic, const Common::Point &
}
}
+void Graphics_v3::fillRowLeft(Common::Point p, const byte pattern, const bool stopBit) {
+ byte color = getPatternColor(p, pattern);
+
+ while (--p.x >= 0) {
+ // In this version, when moving left, it no longer sets the palette first
+ if (!_display.getPixelBit(p))
+ return;
+ if ((p.x % 7) == 6) {
+ color = getPatternColor(p, pattern);
+ _display.setPixelPalette(p, color);
+ }
+ _display.setPixelBit(p, color);
+ }
+}
+
+void Graphics_v3::fillAt(Common::Point p, const byte pattern) {
+ // If the row at p cannot be filled, we do nothing
+ if (!canFillAt(p))
+ return;
+
+ fillRow(p, pattern);
+
+ Common::Point q(p);
+
+ // Fill up from p
+ while (--q.y >= 0 && canFillAt(q))
+ fillRow(q, pattern);
+
+ // Fill down from p
+ while (++p.y < DISPLAY_HEIGHT && canFillAt(p))
+ fillRow(p, pattern);
+}
+
} // End of namespace Adl
diff --git a/engines/adl/graphics.h b/engines/adl/graphics.h
index aab807696c..af34e80113 100644
--- a/engines/adl/graphics.h
+++ b/engines/adl/graphics.h
@@ -44,6 +44,7 @@ protected:
Display &_display;
};
+// Used in hires1
class Graphics_v1 : public GraphicsMan {
public:
Graphics_v1(Display &display) : GraphicsMan(display) { }
@@ -54,23 +55,39 @@ private:
void drawCornerPixel(Common::Point &p, byte color, byte bits, byte quadrant) const;
};
+// Used in hires0 and hires2-hires4
class Graphics_v2 : public GraphicsMan {
public:
Graphics_v2(Display &display) : GraphicsMan(display), _color(0) { }
void drawPic(Common::SeekableReadStream &pic, const Common::Point &pos);
+protected:
+ bool canFillAt(const Common::Point &p, const bool stopBit = false);
+ void fillRow(Common::Point p, const byte pattern, const bool stopBit = false);
+
private:
void clear();
void drawCorners(Common::SeekableReadStream &pic, bool yFirst);
void drawRelativeLines(Common::SeekableReadStream &pic);
void drawAbsoluteLines(Common::SeekableReadStream &pic);
- void fillRow(const Common::Point &p, bool fillBit, byte pattern);
+ virtual void fillRowLeft(Common::Point p, const byte pattern, const bool stopBit);
+ virtual void fillAt(Common::Point p, const byte pattern);
void fill(Common::SeekableReadStream &pic);
byte _color;
Common::Point _offset;
};
+// Used in hires5, hires6 and gelfling (possibly others as well)
+class Graphics_v3 : public Graphics_v2 {
+public:
+ Graphics_v3(Display &display) : Graphics_v2(display) { }
+
+private:
+ void fillRowLeft(Common::Point p, const byte pattern, const bool stopBit);
+ void fillAt(Common::Point p, const byte pattern);
+};
+
} // End of namespace Adl
#endif
diff --git a/engines/adl/hires5.cpp b/engines/adl/hires5.cpp
index 4bf65ab822..a1af394b3a 100644
--- a/engines/adl/hires5.cpp
+++ b/engines/adl/hires5.cpp
@@ -325,7 +325,7 @@ void HiRes5Engine::runIntro() {
}
void HiRes5Engine::init() {
- _graphics = new Graphics_v2(*_display);
+ _graphics = new Graphics_v3(*_display);
insertDisk(2);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 03:17:56 +0000