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-rw-r--r--scumm/charset.cpp3
-rw-r--r--scumm/gfx.cpp385
-rw-r--r--scumm/gfx.h2
-rw-r--r--scumm/script_v6.cpp2
4 files changed, 201 insertions, 191 deletions
diff --git a/scumm/charset.cpp b/scumm/charset.cpp
index 8012538757..8f9b6465c7 100644
--- a/scumm/charset.cpp
+++ b/scumm/charset.cpp
@@ -1095,8 +1095,7 @@ void CharsetRendererClassic::printChar(int chr) {
byte *back = dst;
if (_blitAlso) {
- dst = _vm->getResourceAddress(rtBuffer, vs->number + 5)
- + vs->xstart + drawTop * vs->width + _left;
+ dst = vs->backBuf + vs->xstart + drawTop * vs->width + _left;
}
if (is2byte) {
diff --git a/scumm/gfx.cpp b/scumm/gfx.cpp
index fe0be10656..2c02407ca9 100644
--- a/scumm/gfx.cpp
+++ b/scumm/gfx.cpp
@@ -201,16 +201,11 @@ static const byte default_cursor_hotspots[10] = {
#pragma mark -
-
-
-static inline uint colorWeight(int red, int green, int blue) {
- return 3 * red * red + 6 * green * green + 2 * blue * blue;
-}
-
-
+#pragma mark --- Virtual Screens ---
#pragma mark -
+
Gdi::Gdi(ScummEngine *vm) {
memset(this, 0, sizeof(*this));
_vm = vm;
@@ -290,7 +285,7 @@ void ScummEngine::initVirtScreen(VirtScreenNumber slot, int number, int top, int
memset(vs->screenPtr, 0, size); // reset background
if (twobufs) {
- createResource(rtBuffer, slot + 5, size);
+ vs->backBuf = createResource(rtBuffer, slot + 5, size);
}
if (slot != 3) {
@@ -487,7 +482,7 @@ void Gdi::resetBackground(int top, int bottom, int strip) {
offs = (top * _numStrips + _vm->_screenStartStrip + strip) * 8;
byte *mask_ptr = _vm->getMaskBuffer(strip * 8, top, 0);
- bgbak_ptr = _vm->getResourceAddress(rtBuffer, 5) + offs;
+ bgbak_ptr = vs->backBuf + offs;
backbuff_ptr = vs->screenPtr + offs;
numLinesToProcess = bottom - top;
@@ -503,87 +498,6 @@ void Gdi::resetBackground(int top, int bottom, int strip) {
}
}
-void ScummEngine::blit(byte *dst, const byte *src, int w, int h) {
- assert(h > 0);
- assert(src != NULL);
- assert(dst != NULL);
-
- // TODO: This function currently always assumes that srcPitch == dstPitch
- // and furthermore that both equal _screenWidth.
-
- if (w==_screenWidth)
- memcpy (dst, src, w*h);
- else
- {
- do {
- memcpy(dst, src, w);
- dst += _screenWidth;
- src += _screenWidth;
- } while (--h);
- }
-}
-
-void ScummEngine::drawBox(int x, int y, int x2, int y2, int color) {
- int width, height;
- VirtScreen *vs;
- byte *backbuff, *bgbuff;
-
- if ((vs = findVirtScreen(y)) == NULL)
- return;
-
- if (x > x2)
- SWAP(x, x2);
-
- if (y > y2)
- SWAP(y, y2);
-
- x2++;
- y2++;
-
- // Adjust for the topline of the VirtScreen
- y -= vs->topline;
- y2 -= vs->topline;
-
- // Clip the coordinates
- if (x < 0)
- x = 0;
- else if (x >= vs->width)
- return;
-
- if (x2 < 0)
- return;
- else if (x2 > vs->width)
- x2 = vs->width;
-
- if (y < 0)
- y = 0;
- else if (y > vs->height)
- return;
-
- if (y2 < 0)
- return;
- else if (y2 > vs->height)
- y2 = vs->height;
-
- markRectAsDirty(vs->number, x, x2, y, y2, 0);
-
- backbuff = vs->screenPtr + vs->xstart + y * vs->width + x;
-
- width = x2 - x;
- height = y2 - y;
- if (color == -1) {
- if (vs->number != kMainVirtScreen)
- error("can only copy bg to main window");
- bgbuff = getResourceAddress(rtBuffer, vs->number + 5) + vs->xstart + y * vs->width + x;
- blit(backbuff, bgbuff, width, height);
- } else {
- while (height--) {
- memset(backbuff, color, width);
- backbuff += vs->width;
- }
- }
-}
-
#pragma mark -
void ScummEngine::initBGBuffers(int height) {
@@ -636,91 +550,6 @@ void ScummEngine::initBGBuffers(int height) {
}
}
-void ScummEngine::drawFlashlight() {
- int i, j, offset, x, y;
- VirtScreen *vs = &virtscr[kMainVirtScreen];
-
- // Remove the flash light first if it was previously drawn
- if (_flashlight.isDrawn) {
- markRectAsDirty(kMainVirtScreen, _flashlight.x, _flashlight.x + _flashlight.w,
- _flashlight.y, _flashlight.y + _flashlight.h, USAGE_BIT_DIRTY);
-
- if (_flashlight.buffer) {
- i = _flashlight.h;
- do {
- memset(_flashlight.buffer, 0, _flashlight.w);
- _flashlight.buffer += vs->width;
- } while (--i);
- }
- _flashlight.isDrawn = false;
- }
-
- if (_flashlight.xStrips == 0 || _flashlight.yStrips == 0)
- return;
-
- // Calculate the area of the flashlight
- if (_gameId == GID_ZAK256 || _version <= 2) {
- x = _mouse.x + vs->xstart;
- y = _mouse.y - vs->topline;
- } else {
- Actor *a = derefActor(VAR(VAR_EGO), "drawFlashlight");
- x = a->_pos.x;
- y = a->_pos.y;
- }
- _flashlight.w = _flashlight.xStrips * 8;
- _flashlight.h = _flashlight.yStrips * 8;
- _flashlight.x = x - _flashlight.w / 2 - _screenStartStrip * 8;
- _flashlight.y = y - _flashlight.h / 2;
-
- if (_gameId == GID_LOOM || _gameId == GID_LOOM256)
- _flashlight.y -= 12;
-
- // Clip the flashlight at the borders
- if (_flashlight.x < 0)
- _flashlight.x = 0;
- else if (_flashlight.x + _flashlight.w > gdi._numStrips * 8)
- _flashlight.x = gdi._numStrips * 8 - _flashlight.w;
- if (_flashlight.y < 0)
- _flashlight.y = 0;
- else if (_flashlight.y + _flashlight.h> vs->height)
- _flashlight.y = vs->height - _flashlight.h;
-
- // Redraw any actors "under" the flashlight
- for (i = _flashlight.x / 8; i < (_flashlight.x + _flashlight.w) / 8; i++) {
- assert(0 <= i && i < gdi._numStrips);
- setGfxUsageBit(_screenStartStrip + i, USAGE_BIT_DIRTY);
- vs->tdirty[i] = 0;
- vs->bdirty[i] = vs->height;
- }
-
- byte *bgbak;
- offset = _flashlight.y * vs->width + vs->xstart + _flashlight.x;
- _flashlight.buffer = vs->screenPtr + offset;
- bgbak = getResourceAddress(rtBuffer, 5) + offset;
-
- blit(_flashlight.buffer, bgbak, _flashlight.w, _flashlight.h);
-
- // Round the corners. To do so, we simply hard-code a set of nicely
- // rounded corners.
- int corner_data[] = { 8, 6, 4, 3, 2, 2, 1, 1 };
- int minrow = 0;
- int maxcol = _flashlight.w - 1;
- int maxrow = (_flashlight.h - 1) * vs->width;
-
- for (i = 0; i < 8; i++, minrow += vs->width, maxrow -= vs->width) {
- int d = corner_data[i];
-
- for (j = 0; j < d; j++) {
- _flashlight.buffer[minrow + j] = 0;
- _flashlight.buffer[minrow + maxcol - j] = 0;
- _flashlight.buffer[maxrow + j] = 0;
- _flashlight.buffer[maxrow + maxcol - j] = 0;
- }
- }
-
- _flashlight.isDrawn = true;
-}
-
/**
* Redraw background as needed, i.e. the left/right sides if scrolling took place etc.
* Note that this only updated the virtual screen, not the actual display.
@@ -836,7 +665,7 @@ void ScummEngine::restoreBG(Common::Rect rect, byte backColor) {
int offset = (rect.top - topline) * vs->width + vs->xstart + rect.left;
backbuff = vs->screenPtr + offset;
- bgbak = getResourceAddress(rtBuffer, vs->number + 5) + offset;
+ bgbak = vs->backBuf + offset;
height = rect.height();
width = rect.width();
@@ -891,6 +720,181 @@ byte *ScummEngine::getMaskBuffer(int x, int y, int z) {
+ _screenStartStrip + (x / 8) + y * gdi._numStrips + gdi._imgBufOffs[z];
}
+byte *Gdi::getMaskBuffer(int x, int y, int z) {
+ return _vm->getResourceAddress(rtBuffer, 9)
+ + x + y * _numStrips + _imgBufOffs[z];
+}
+
+
+#pragma mark -
+#pragma mark --- Misc ---
+#pragma mark -
+
+void ScummEngine::blit(byte *dst, const byte *src, int w, int h) {
+ assert(h > 0);
+ assert(src != NULL);
+ assert(dst != NULL);
+
+ // TODO: This function currently always assumes that srcPitch == dstPitch
+ // and furthermore that both equal _screenWidth.
+
+ if (w==_screenWidth)
+ memcpy (dst, src, w*h);
+ else
+ {
+ do {
+ memcpy(dst, src, w);
+ dst += _screenWidth;
+ src += _screenWidth;
+ } while (--h);
+ }
+}
+
+void ScummEngine::drawBox(int x, int y, int x2, int y2, int color) {
+ int width, height;
+ VirtScreen *vs;
+ byte *backbuff, *bgbuff;
+
+ if ((vs = findVirtScreen(y)) == NULL)
+ return;
+
+ if (x > x2)
+ SWAP(x, x2);
+
+ if (y > y2)
+ SWAP(y, y2);
+
+ x2++;
+ y2++;
+
+ // Adjust for the topline of the VirtScreen
+ y -= vs->topline;
+ y2 -= vs->topline;
+
+ // Clip the coordinates
+ if (x < 0)
+ x = 0;
+ else if (x >= vs->width)
+ return;
+
+ if (x2 < 0)
+ return;
+ else if (x2 > vs->width)
+ x2 = vs->width;
+
+ if (y < 0)
+ y = 0;
+ else if (y > vs->height)
+ return;
+
+ if (y2 < 0)
+ return;
+ else if (y2 > vs->height)
+ y2 = vs->height;
+
+ markRectAsDirty(vs->number, x, x2, y, y2, 0);
+
+ backbuff = vs->screenPtr + vs->xstart + y * vs->width + x;
+
+ width = x2 - x;
+ height = y2 - y;
+ if (color == -1) {
+ if (vs->number != kMainVirtScreen)
+ error("can only copy bg to main window");
+ bgbuff = vs->backBuf + vs->xstart + y * vs->width + x;
+ blit(backbuff, bgbuff, width, height);
+ } else {
+ while (height--) {
+ memset(backbuff, color, width);
+ backbuff += vs->width;
+ }
+ }
+}
+
+void ScummEngine::drawFlashlight() {
+ int i, j, offset, x, y;
+ VirtScreen *vs = &virtscr[kMainVirtScreen];
+
+ // Remove the flash light first if it was previously drawn
+ if (_flashlight.isDrawn) {
+ markRectAsDirty(kMainVirtScreen, _flashlight.x, _flashlight.x + _flashlight.w,
+ _flashlight.y, _flashlight.y + _flashlight.h, USAGE_BIT_DIRTY);
+
+ if (_flashlight.buffer) {
+ i = _flashlight.h;
+ do {
+ memset(_flashlight.buffer, 0, _flashlight.w);
+ _flashlight.buffer += vs->width;
+ } while (--i);
+ }
+ _flashlight.isDrawn = false;
+ }
+
+ if (_flashlight.xStrips == 0 || _flashlight.yStrips == 0)
+ return;
+
+ // Calculate the area of the flashlight
+ if (_gameId == GID_ZAK256 || _version <= 2) {
+ x = _mouse.x + vs->xstart;
+ y = _mouse.y - vs->topline;
+ } else {
+ Actor *a = derefActor(VAR(VAR_EGO), "drawFlashlight");
+ x = a->_pos.x;
+ y = a->_pos.y;
+ }
+ _flashlight.w = _flashlight.xStrips * 8;
+ _flashlight.h = _flashlight.yStrips * 8;
+ _flashlight.x = x - _flashlight.w / 2 - _screenStartStrip * 8;
+ _flashlight.y = y - _flashlight.h / 2;
+
+ if (_gameId == GID_LOOM || _gameId == GID_LOOM256)
+ _flashlight.y -= 12;
+
+ // Clip the flashlight at the borders
+ if (_flashlight.x < 0)
+ _flashlight.x = 0;
+ else if (_flashlight.x + _flashlight.w > gdi._numStrips * 8)
+ _flashlight.x = gdi._numStrips * 8 - _flashlight.w;
+ if (_flashlight.y < 0)
+ _flashlight.y = 0;
+ else if (_flashlight.y + _flashlight.h> vs->height)
+ _flashlight.y = vs->height - _flashlight.h;
+
+ // Redraw any actors "under" the flashlight
+ for (i = _flashlight.x / 8; i < (_flashlight.x + _flashlight.w) / 8; i++) {
+ assert(0 <= i && i < gdi._numStrips);
+ setGfxUsageBit(_screenStartStrip + i, USAGE_BIT_DIRTY);
+ vs->tdirty[i] = 0;
+ vs->bdirty[i] = vs->height;
+ }
+
+ byte *bgbak;
+ offset = _flashlight.y * vs->width + vs->xstart + _flashlight.x;
+ _flashlight.buffer = vs->screenPtr + offset;
+ bgbak = vs->backBuf + offset;
+
+ blit(_flashlight.buffer, bgbak, _flashlight.w, _flashlight.h);
+
+ // Round the corners. To do so, we simply hard-code a set of nicely
+ // rounded corners.
+ int corner_data[] = { 8, 6, 4, 3, 2, 2, 1, 1 };
+ int minrow = 0;
+ int maxcol = _flashlight.w - 1;
+ int maxrow = (_flashlight.h - 1) * vs->width;
+
+ for (i = 0; i < 8; i++, minrow += vs->width, maxrow -= vs->width) {
+ int d = corner_data[i];
+
+ for (j = 0; j < d; j++) {
+ _flashlight.buffer[minrow + j] = 0;
+ _flashlight.buffer[minrow + maxcol - j] = 0;
+ _flashlight.buffer[maxrow + j] = 0;
+ _flashlight.buffer[maxrow + maxcol - j] = 0;
+ }
+ }
+
+ _flashlight.isDrawn = true;
+}
#pragma mark -
#pragma mark --- Image drawing ---
@@ -1011,11 +1015,11 @@ void Gdi::drawBitmap(const byte *ptr, VirtScreen *vs, int x, int y, const int wi
if (_vm->_version == 2) {
if (vs->alloctwobuffers)
- bgbak_ptr = _vm->getResourceAddress(rtBuffer, vs->number + 5) + (y * _numStrips + x) * 8;
+ bgbak_ptr = vs->backBuf + (y * _numStrips + x) * 8;
else
bgbak_ptr = vs->screenPtr + (y * _numStrips + x) * 8;
- mask_ptr = _vm->getResourceAddress(rtBuffer, 9) + (y * _numStrips + x) + _imgBufOffs[1];
+ mask_ptr = getMaskBuffer(x, y, 1);
const int left = (stripnr * 8);
const int right = left + (numstrip * 8);
@@ -1134,7 +1138,7 @@ void Gdi::drawBitmap(const byte *ptr, VirtScreen *vs, int x, int y, const int wi
backbuff_ptr = vs->screenPtr + (y * _numStrips + x) * 8;
if (vs->alloctwobuffers)
- bgbak_ptr = _vm->getResourceAddress(rtBuffer, vs->number + 5) + (y * _numStrips + x) * 8;
+ bgbak_ptr = vs->backBuf + (y * _numStrips + x) * 8;
else
bgbak_ptr = backbuff_ptr;
@@ -1153,7 +1157,7 @@ void Gdi::drawBitmap(const byte *ptr, VirtScreen *vs, int x, int y, const int wi
}
}
- mask_ptr = _vm->getResourceAddress(rtBuffer, 9) + (y * _numStrips + x);
+ mask_ptr = getMaskBuffer(x, y);
CHECK_HEAP;
if (vs->alloctwobuffers) {
@@ -1172,7 +1176,7 @@ void Gdi::drawBitmap(const byte *ptr, VirtScreen *vs, int x, int y, const int wi
CHECK_HEAP;
if (_vm->_version == 1) {
- mask_ptr = _vm->getResourceAddress(rtBuffer, 9) + y * _numStrips + x + _imgBufOffs[1];
+ mask_ptr = getMaskBuffer(x, y, 1);
drawStripC64Mask(mask_ptr, stripnr, width, height);
} else if (_vm->_version == 2) {
// Do nothing here for V2 games - zplane was handled already.
@@ -1198,7 +1202,7 @@ void Gdi::drawBitmap(const byte *ptr, VirtScreen *vs, int x, int y, const int wi
else
z_plane_ptr = zplane_list[1] + READ_LE_UINT16(zplane_list[1] + stripnr * 2 + 8);
for (i = 0; i < numzbuf; i++) {
- mask_ptr = _vm->getResourceAddress(rtBuffer, 9) + y * _numStrips + x + _imgBufOffs[i];
+ mask_ptr = getMaskBuffer(x, y, i);
if (useOrDecompress && (flag & dbAllowMaskOr))
decompressMaskImgOr(mask_ptr, z_plane_ptr, height);
else
@@ -1222,7 +1226,7 @@ void Gdi::drawBitmap(const byte *ptr, VirtScreen *vs, int x, int y, const int wi
else
offs = READ_LE_UINT16(zplane_list[i] + stripnr * 2 + 8);
- mask_ptr = _vm->getResourceAddress(rtBuffer, 9) + y * _numStrips + x + _imgBufOffs[i];
+ mask_ptr = getMaskBuffer(x, y, i);
if (offs) {
z_plane_ptr = zplane_list[i] + offs;
@@ -1245,7 +1249,7 @@ void Gdi::drawBitmap(const byte *ptr, VirtScreen *vs, int x, int y, const int wi
#if 0
// HACK: blit mask(s) onto normal screen. Useful to debug masking
for (i = 0; i < numzbuf; i++) {
- mask_ptr = _vm->getResourceAddress(rtBuffer, 9) + x + _imgBufOffs[i] + (y * _numStrips);
+ mask_ptr = getMaskBuffer(x, y, i);
byte *dst = backbuff_ptr;
byte *dst2 = bgbak_ptr;
for (int h = 0; h < height; h++) {
@@ -3004,6 +3008,11 @@ void ScummEngine::setupShadowPalette(int slot, int redScale, int greenScale, int
}
}
+static inline uint colorWeight(int red, int green, int blue) {
+ return 3 * red * red + 6 * green * green + 2 * blue * blue;
+}
+
+
void ScummEngine::setupShadowPalette(int redScale, int greenScale, int blueScale, int startColor, int endColor) {
const byte *basepal = getPalettePtr(_curPalIndex);
const byte *pal = basepal;
@@ -3172,7 +3181,7 @@ void ScummEngine::darkenPalette(int redScale, int greenScale, int blueScale, int
}
}
-static int value(int n1, int n2, int hue) {
+static int HSL2RGBHelper(int n1, int n2, int hue) {
if (hue > 360)
hue = hue - 360;
else if (hue < 0)
@@ -3248,9 +3257,9 @@ void ScummEngine::desaturatePalette(int hueScale, int satScale, int lightScale,
m1 = L - m2;
- R = value(m1, m2, H + 120);
- G = value(m1, m2, H);
- B = value(m1, m2, H - 120);
+ R = HSL2RGBHelper(m1, m2, H + 120);
+ G = HSL2RGBHelper(m1, m2, H);
+ B = HSL2RGBHelper(m1, m2, H - 120);
} else {
// Maximal color = minimal color -> R=G=B -> it's a grayscale.
R = G = B = (R * lightScale) / 255;
diff --git a/scumm/gfx.h b/scumm/gfx.h
index c7e3a8cec0..1aaca41b49 100644
--- a/scumm/gfx.h
+++ b/scumm/gfx.h
@@ -168,6 +168,8 @@ protected:
void drawStripToScreen(VirtScreen *vs, int x, int w, int t, int b);
void updateDirtyScreen(VirtScreen *vs);
+
+ byte *getMaskBuffer(int x, int y, int z = 0);
public:
void drawBitmap(const byte *ptr, VirtScreen *vs, int x, int y, const int width, const int height,
diff --git a/scumm/script_v6.cpp b/scumm/script_v6.cpp
index 06c134f066..6167ccc84a 100644
--- a/scumm/script_v6.cpp
+++ b/scumm/script_v6.cpp
@@ -3259,7 +3259,7 @@ void ScummEngine_v6::o6_unknownE1() {
int offset = (y - vs->topline) * vs->width + x + _screenLeft;
- byte area = *(getResourceAddress(rtBuffer, vs->number + 1) + offset);
+ byte area = *(vs->screenPtr + offset);
push(area);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-16 21:01:11 +0000