diff options
Diffstat (limited to 'engines/kyra/screen_v2.cpp')
-rw-r--r-- | engines/kyra/screen_v2.cpp | 458 |
1 files changed, 258 insertions, 200 deletions
diff --git a/engines/kyra/screen_v2.cpp b/engines/kyra/screen_v2.cpp index f3eb840ca2..704296c534 100644 --- a/engines/kyra/screen_v2.cpp +++ b/engines/kyra/screen_v2.cpp @@ -11,7 +11,7 @@ * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * You should have received a copy of the GNU General Public License @@ -23,256 +23,314 @@ * */ -#include "common/endian.h" - -#include "kyra/kyra_v2.h" #include "kyra/screen_v2.h" +#include "common/endian.h" + namespace Kyra { -Screen_v2::Screen_v2(KyraEngine_v2 *vm, OSystem *system) - : ScreenEx(vm, system) { - _vm = vm; - _wsaFrameAnimBuffer = new uint8[1024]; -} +uint8 *Screen_v2::generateOverlay(const uint8 *palette, uint8 *buffer, int startColor, uint16 factor) { + if (!palette || !buffer) + return buffer; -Screen_v2::~Screen_v2() { - delete [] _wsaFrameAnimBuffer; -} + factor = MIN<uint16>(255, factor); + factor >>= 1; + factor &= 0xFF; + + const byte col1 = palette[startColor * 3 + 0]; + const byte col2 = palette[startColor * 3 + 1]; + const byte col3 = palette[startColor * 3 + 2]; -void Screen_v2::setScreenDim(int dim) { - debugC(9, kDebugLevelScreen, "Screen_v2::setScreenDim(%d)", dim); - assert(dim < _screenDimTableCount); - _curDim = &_screenDimTable[dim]; + uint8 *dst = buffer; + *dst++ = 0; + + for (int i = 1; i != 255; ++i) { + uint8 processedPalette[3]; + const uint8 *src = palette + i*3; + byte col; + + col = *src++; + col -= ((((col - col1) * factor) << 1) >> 8) & 0xFF; + processedPalette[0] = col; + + col = *src++; + col -= ((((col - col2) * factor) << 1) >> 8) & 0xFF; + processedPalette[1] = col; + + col = *src++; + col -= ((((col - col3) * factor) << 1) >> 8) & 0xFF; + processedPalette[2] = col; + + *dst++ = findLeastDifferentColor(processedPalette, palette+3, 255)+1; + } + + return buffer; } -const ScreenDim *Screen_v2::getScreenDim(int dim) { - debugC(9, kDebugLevelScreen, "Screen_v2::getScreenDim(%d)", dim); - assert(dim < _screenDimTableCount); - return &_screenDimTable[dim]; +void Screen_v2::applyOverlay(int x, int y, int w, int h, int pageNum, const uint8 *overlay) { + if (pageNum == 0 || pageNum == 1) + addDirtyRect(x, y, w, h); + + uint8 *dst = getPagePtr(pageNum) + y * 320 + x; + while (h--) { + for (int wi = 0; wi < w; ++wi) { + uint8 index = *dst; + *dst++ = overlay[index]; + } + dst += 320 - w; + } } -void Screen_v2::generateGrayOverlay(const uint8 *srcPal, uint8 *grayOverlay, int factor, int addR, int addG, int addB, int lastColor, bool flag) { - uint8 tmpPal[768]; - - for (int i = 0; i != lastColor; i++) { - if (flag) { - int v = ((((srcPal[3 * i] & 0x3f) + (srcPal[3 * i + 1] & 0x3f) - + (srcPal[3 * i + 2] & 0x3f)) / 3) * factor) / 0x40; - tmpPal[3 * i] = tmpPal[3 * i + 1] = tmpPal[3 * i + 2] = v & 0xff; - } else { - int v = (((srcPal[3 * i] & 0x3f) * factor) / 0x40) + addR; - tmpPal[3 * i] = (v > 0x3f) ? 0x3f : v & 0xff; - v = (((srcPal[3 * i + 1] & 0x3f) * factor) / 0x40) + addG; - tmpPal[3 * i + 1] = (v > 0x3f) ? 0x3f : v & 0xff; - v = (((srcPal[3 * i + 2] & 0x3f) * factor) / 0x40) + addB; - tmpPal[3 * i + 2] = (v > 0x3f) ? 0x3f : v & 0xff; +int Screen_v2::findLeastDifferentColor(const uint8 *paletteEntry, const uint8 *palette, uint16 numColors) { + int m = 0x7fff; + int r = 0x101; + + for (int i = 0; i < numColors; i++) { + int v = paletteEntry[0] - *palette++; + int c = v * v; + v = paletteEntry[1] - *palette++; + c += (v * v); + v = paletteEntry[2] - *palette++; + c += (v * v); + + if (c <= m) { + m = c; + r = i; } } - for (int i = 0; i < lastColor; i++) - grayOverlay[i] = findLeastDifferentColor(tmpPal + 3 * i, srcPal, lastColor); + return r; } -void Screen_v2::wsaFrameAnimationStep(int x1, int y1, int x2, int y2, - int w1, int h1, int w2, int h2, int srcPage, int dstPage, int dim) { +void Screen_v2::copyWsaRect(int x, int y, int w, int h, int dimState, int plotFunc, const uint8 *src, + int unk1, const uint8 *unkPtr1, const uint8 *unkPtr2) { + uint8 *dstPtr = getPagePtr(_curPage); + uint8 *origDst = dstPtr; + + const ScreenDim *dim = getScreenDim(dimState); + int dimX1 = dim->sx << 3; + int dimX2 = dim->w << 3; + dimX2 += dimX1; + + int dimY1 = dim->sy; + int dimY2 = dim->h; + dimY2 += dimY1; + + int temp = y - dimY1; + if (temp < 0) { + if ((temp += h) <= 0) + return; + else { + SWAP(temp, h); + y += temp - h; + src += (temp - h) * w; + } + } - if (!(w1 || h1 || w2 || h2)) + temp = dimY2 - y; + if (temp <= 0) return; - ScreenDim cdm = _screenDimTable[dim]; - cdm.sx <<= 3; - cdm.w <<= 3; + if (temp < h) + h = temp; - int na = 0, nb = 0, nc = w2; - - if (!calcBounds(cdm.w, cdm.h, x2, y2, w2, h2, na, nb, nc)) - return; + int srcOffset = 0; + temp = x - dimX1; + if (temp < 0) { + temp = -temp; + srcOffset = temp; + x += temp; + w -= temp; + } - const uint8 *src = getPagePtr(srcPage) + y1 * 320; - uint8 *dst = getPagePtr(dstPage) + (y2 + cdm.sy) * 320; + int srcAdd = 0; - int u = -1; + temp = dimX2 - x; + if (temp <= 0) + return; - do { - int t = (nb * h1) / h2; - if (t != u) { - u = t; - const uint8 *s = src + (x1 + t) * 320; - uint8 *dt = (uint8*) _wsaFrameAnimBuffer; + if (temp < w) { + SWAP(w, temp); + temp -= w; + srcAdd = temp; + } - t = w2 - w1; - if (!t) { - memcpy(dt, s, w2); - } else if (t > 0) { - if (w1 == 1) { - memset(dt, *s, w2); - } else { - t = ((((((w2 - w1 + 1) & 0xffff) << 8) / w1) + 0x100) & 0xffff) << 8; - int bp = 0; - for (int i = 0; i < w1; i++) { - int cnt = (t >> 16); - bp += (t & 0xffff); - if (bp > 0xffff) { - bp -= 0xffff; - cnt++; - } - memset(dt, *s++, cnt); - dt += cnt; - } + dstPtr += y * SCREEN_W + x; + uint8 *dst = dstPtr; + + if (_curPage == 0 || _curPage == 1) + addDirtyRect(x, y, w, h); + + clearOverlayRect(_curPage, x, y, w, h); + + temp = h; + int curY = y; + while (h--) { + src += srcOffset; + ++curY; + int cW = w; + + switch (plotFunc) { + case 0: + memcpy(dst, src, cW); + dst += cW; src += cW; + break; + + case 1: + while (cW--) { + uint8 d = *src++; + uint8 t = unkPtr1[d]; + if (t != 0xFF) + d = unkPtr2[*dst + (t << 8)]; + *dst++ = d; + } + break; + + case 4: + while (cW--) { + uint8 d = *src++; + if (d) + *dst = d; + ++dst; + } + break; + + case 5: + while (cW--) { + uint8 d = *src++; + if (d) { + uint8 t = unkPtr1[d]; + if (t != 0xFF) + d = unkPtr2[*dst + (t << 8)]; + *dst = d; } - } else { - if (w2 == 1) { - *dt = *s; + ++dst; + } + break; + + case 8: + case 9: + while (cW--) { + uint8 d = *src++; + uint8 t = _shapePages[0][dst - origDst] & 7; + if (unk1 < t && (curY > _maskMinY && curY < _maskMaxY)) + d = _shapePages[1][dst - origDst]; + *dst++ = d; + } + break; + + case 12: + case 13: + while (cW--) { + uint8 d = *src++; + if (d) { + uint8 t = _shapePages[0][dst - origDst] & 7; + if (unk1 < t && (curY > _maskMinY && curY < _maskMaxY)) + d = _shapePages[1][dst - origDst]; + *dst++ = d; } else { - t = (((((w1 - w2) & 0xffff) << 8) / w2) & 0xffff) << 8; - int bp = 0; - for (int i = 0; i < w2; i++) { - *dt++ = *s++; - bp += (t & 0xffff); - if (bp > 0xffff) { - bp -= 0xffff; - s++; - } - s += (t >> 16); - } + d = _shapePages[1][dst - origDst]; + *dst++ = d; } } - } - memcpy(dst + x2 + cdm.sx, _wsaFrameAnimBuffer + na, w2); - dst += 320; - } while (++nb < h2); -} + break; -void Screen_v2::cmpFadeFrameStep(int srcPage, int srcW, int srcH, int srcX, int srcY, int dstPage, int dstW, - int dstH, int dstX, int dstY, int cmpW, int cmpH, int cmpPage) { - - if (!(cmpW || cmpH )) - return; + default: + break; + } - int r1, r2, r3, r4, r5, r6; + dst = (dstPtr += SCREEN_W); + src += srcAdd; + } +} - int X1 = srcX; - int Y1 = srcY; - int W1 = cmpW; - int H1 = cmpH; +const uint8 *Screen_v2::getPtrToShape(const uint8 *shpFile, int shape) { + debugC(9, kDebugLevelScreen, "Screen_v2::getPtrToShape(%p, %d)", (const void *)shpFile, shape); + uint16 shapes = READ_LE_UINT16(shpFile); - if (!calcBounds(srcW, srcH, X1, Y1, W1, H1, r1, r2, r3)) - return; + if (shapes <= shape) + return 0; - int X2 = dstX; - int Y2 = dstY; - int W2 = W1; - int H2 = H1; + uint32 offset = READ_LE_UINT32(shpFile + (shape << 2) + 2); - if (!calcBounds(dstW, dstH, X2, Y2, W2, H2, r4, r5, r6)) - return; + return shpFile + offset + 2; +} - const uint8 *src = getPagePtr(srcPage) + srcW * (Y1 + r5); - uint8 *dst = getPagePtr(dstPage) + dstW * (Y2 + r2); - const uint8 *cmp = getPagePtr(cmpPage); +uint8 *Screen_v2::getPtrToShape(uint8 *shpFile, int shape) { + debugC(9, kDebugLevelScreen, "Screen_v2::getPtrToShape(%p, %d)", (void *)shpFile, shape); + uint16 shapes = READ_LE_UINT16(shpFile); - while (H2--) { - const uint8 *s = src + r4 + X1; - uint8 *d = dst + r1 + X2; + if (shapes <= shape) + return 0; - for (int i = 0; i < W2; i++) { - int ix = (*s++ << 8) + *d; - *d++ = cmp[ix]; - } + uint32 offset = READ_LE_UINT32(shpFile + (shape << 2) + 2); - src += W1; - dst += W2; - } + return shpFile + offset + 2; } -void Screen_v2::copyPageMemory(int srcPage, int srcPos, int dstPage, int dstPos, int numBytes) { - const uint8 *src = getPagePtr(srcPage) + srcPos; - uint8 *dst = getPagePtr(dstPage) + dstPos; - memcpy(dst, src, numBytes); +int Screen_v2::getShapeScaledWidth(const uint8 *shpFile, int scale) { + debugC(9, kDebugLevelScreen, "Screen_v2::getShapeScaledWidth(%p, %d)", (const void*)shpFile, scale); + int width = READ_LE_UINT16(shpFile+3); + return (width * scale) >> 8; } +int Screen_v2::getShapeScaledHeight(const uint8 *shpFile, int scale) { + debugC(9, kDebugLevelScreen, "Screen_v2::getShapeScaledHeight(%p, %d)", (const void*)shpFile, scale); + int height = shpFile[2]; + return (height * scale) >> 8; +} -void Screen_v2::copyRegionEx(int srcPage, int srcW, int srcH, int dstPage, int dstX,int dstY, int dstW, int dstH, const ScreenDim *dim, bool flag) { - int x0 = dim->sx << 3; - int y0 = dim->sy; - int w0 = dim->w << 3; - int h0 = dim->h; - - int x1 = dstX; - int y1 = dstY; - int w1 = dstW; - int h1 = dstH; +uint16 Screen_v2::getShapeSize(const uint8 *shp) { + debugC(9, kDebugLevelScreen, "Screen_v2::getShapeSize(%p)", (const void *)shp); - int x2, y2, w2; + return READ_LE_UINT16(shp+6); +} - calcBounds(w0, h0, x1, y1, w1, h1, x2, y2, w2); +uint8 *Screen_v2::makeShapeCopy(const uint8 *src, int index) { + debugC(9, kDebugLevelScreen, "Screen_v2::makeShapeCopy(%p, %d)", (const void *)src, index); - const uint8 *src = getPagePtr(srcPage) + (320 * srcH) + srcW; - uint8 *dst = getPagePtr(dstPage) + 320 * (y0 + y1); + const uint8 *shape = getPtrToShape(src, index); + int size = getShapeSize(shape); - for (int y = 0; y < h1; y++) { - const uint8 *s = src + x2; - uint8 *d = dst + x0 + x1; + uint8 *copy = new uint8[size]; + assert(copy); + memcpy(copy, shape, size); - if (flag) - d += (h1 >> 1); + return copy; +} - for (int x = 0; x < w1; x++) { - if (*s) - *d = *s; - s++; - d++; - } - dst += 320; - src += 320; - } +int Screen_v2::getLayer(int x, int y) { + debugC(9, kDebugLevelScreen, "Screen_v2::getLayer(%d, %d)", x, y); + if (x < 0) + x = 0; + else if (x >= 320) + x = 319; + if (y < 0) + y = 0; + else if (y >= 144) + y = 143; + + uint8 pixel = *(getCPagePtr(5) + y * 320 + x); + pixel &= 0x7F; + pixel >>= 3; + + if (pixel < 1) + pixel = 1; + else if (pixel > 15) + pixel = 15; + return pixel; } -bool Screen_v2::calcBounds(int w0, int h0, int &x1, int &y1, int &w1, int &h1, int &x2, int &y2, int &w2) { - x2 = 0; - y2 = 0; - w2 = w1; - - int t = x1 + w1; - if (t < 1) { - w1 = h1 = -1; - } else { - if (t <= x1) { - x2 = w1 - t; - w1 = t; - x1 = 0; - } - t = w0 - x1; - if (t < 1) { - w1 = h1 = -1; - } else { - if (t <= w1) { - w1 = t; - } - w2 -= w1; - t = h1 + y1; - if (t < 1) { - w1 = h1 = -1; - } else { - if (t <= y1) { - y2 = h1 - t; - h1 = t; - y1 = 0; - } - t = h0 - y1; - if (t < 1) { - w1 = h1 = -1; - } else { - if (t <= h1) { - h1 = t; - } - } - } - } - } +int Screen_v2::getRectSize(int w, int h) { + debugC(9, kDebugLevelScreen, "Screen_v2::getRectSize(%d, %d)", w, h); + if (w > 320 || h > 200) + return 0; + return w*h; +} - return (w1 == -1) ? false : true; +void Screen_v2::setTextColorMap(const uint8 *cmap) { + debugC(9, kDebugLevelScreen, "Screen_v2::setTextColorMap(%p)", (const void *)cmap); + setTextColor(cmap, 0, 15); } } // end of namespace Kyra |