diff options
Diffstat (limited to 'engines/kyra/screen_lok.cpp')
| -rw-r--r-- | engines/kyra/screen_lok.cpp | 213 |
1 files changed, 206 insertions, 7 deletions
diff --git a/engines/kyra/screen_lok.cpp b/engines/kyra/screen_lok.cpp index 6d97db2f28..9fdeae1398 100644 --- a/engines/kyra/screen_lok.cpp +++ b/engines/kyra/screen_lok.cpp @@ -26,8 +26,9 @@ #include "kyra/kyra_lok.h" #include "kyra/screen_lok.h" -namespace Kyra { +#include "graphics/cursorman.h" +namespace Kyra { Screen_LoK::Screen_LoK(KyraEngine_LoK *vm, OSystem *system) : Screen(vm, system) { @@ -80,13 +81,15 @@ const ScreenDim *Screen_LoK::getScreenDim(int dim) { void Screen_LoK::fadeSpecialPalette(int palIndex, int startIndex, int size, int fadeTime) { assert(_vm->palTable1()[palIndex]); - assert(_currentPalette); - uint8 tempPal[768]; - memcpy(tempPal, _currentPalette, 768); - memcpy(&tempPal[startIndex*3], _vm->palTable1()[palIndex], size*3); + + Palette tempPal(getPalette(0).getNumColors()); + tempPal.copy(getPalette(0)); + tempPal.copy(_vm->palTable1()[palIndex], 0, size, startIndex); + fadePalette(tempPal, fadeTime*18); - memcpy(&_currentPalette[startIndex*3], &tempPal[startIndex*3], size*3); - setScreenPalette(_currentPalette); + + getPalette(0).copy(tempPal, startIndex, size); + setScreenPalette(getPalette(0)); _system->updateScreen(); } @@ -237,4 +240,200 @@ int Screen_LoK::getRectSize(int x, int y) { return ((x*y) << 3); } +#pragma mark - + +Screen_LoK_16::Screen_LoK_16(KyraEngine_LoK *vm, OSystem *system) : Screen_LoK(vm, system) { + memset(_paletteDither, 0, sizeof(_paletteDither)); +} + +void Screen_LoK_16::setScreenPalette(const Palette &pal) { + _screenPalette->copy(pal); + + for (int i = 0; i < 256; ++i) + paletteMap(i, pal[i * 3 + 0] << 2, pal[i * 3 + 1] << 2, pal[i * 3 + 2] << 2); + + set16ColorPalette(_palette16); +} + +void Screen_LoK_16::fadePalette(const Palette &pal, int delay, const UpdateFunctor *upFunc) { + uint8 notBlackFlag = 0; + for (int i = 0; i < 768; ++i) { + if ((*_screenPalette)[i]) + notBlackFlag |= 1; + if (pal[i]) + notBlackFlag |= 2; + } + + if (notBlackFlag == 1 || notBlackFlag == 2) { + bool upFade = false; + + for (int i = 0; i < 768; ++i) { + if ((*_screenPalette)[i] < pal[i]) { + upFade = true; + break; + } + } + + if (upFade) { + for (int i = 0; i < 256; ++i) + paletteMap(i, pal[i * 3 + 0] << 2, pal[i * 3 + 1] << 2, pal[i * 3 + 2] << 2); + _forceFullUpdate = true; + } + + uint8 color16Palette[16 * 3]; + + if (upFade) + memset(color16Palette, 0, sizeof(color16Palette)); + else + memcpy(color16Palette, _palette16, sizeof(color16Palette)); + + set16ColorPalette(color16Palette); + updateScreen(); + + for (int i = 0; i < 16; ++i) { + set16ColorPalette(color16Palette); + + for (int k = 0; k < 48; ++k) { + if (upFade) { + if (color16Palette[k] < _palette16[k]) + ++color16Palette[k]; + } else { + if (color16Palette[k] > 0) + --color16Palette[k]; + } + } + + if (upFunc && upFunc->isValid()) + (*upFunc)(); + else + _system->updateScreen(); + + _vm->delay((delay >> 5) * _vm->tickLength()); + } + } + + setScreenPalette(pal); +} + +void Screen_LoK_16::getFadeParams(const Palette &pal, int delay, int &delayInc, int &diff) { + error("Screen_LoK_16::getFadeParams called"); +} + +int Screen_LoK_16::fadePalStep(const Palette &pal, int diff) { + error("Screen_LoK_16::fadePalStep called"); + return 0; +} + +void Screen_LoK_16::paletteMap(uint8 idx, int r, int g, int b) { + const int red = r; + const int green = g; + const int blue = b; + + uint16 rgbDiff = 1000; + int rDiff = 0, gDiff = 0, bDiff = 0; + + int index1 = -1; + + for (int i = 0; i < 16; ++i) { + const int realR = _palette16[i * 3 + 0] << 4; + const int realG = _palette16[i * 3 + 1] << 4; + const int realB = _palette16[i * 3 + 2] << 4; + + uint16 diff = ABS(r - realR) + ABS(g - realG) + ABS(b - realB); + + if (diff < rgbDiff) { + rgbDiff = diff; + index1 = i; + + rDiff = r - realR; + gDiff = g - realG; + bDiff = b - realB; + } + } + + r = rDiff / 4 + red; + g = gDiff / 4 + green; + b = bDiff / 4 + blue; + + rgbDiff = 1000; + int index2 = -1; + + for (int i = 0; i < 16; ++i) { + const int realR = _palette16[i * 3 + 0] << 4; + const int realG = _palette16[i * 3 + 1] << 4; + const int realB = _palette16[i * 3 + 2] << 4; + + uint16 diff = ABS(r - realR) + ABS(g - realG) + ABS(b - realB); + + if (diff < rgbDiff) { + rgbDiff = diff; + index2 = i; + } + } + + _paletteDither[idx].bestMatch = index1; + _paletteDither[idx].invertMatch = index2; +} + +void Screen_LoK_16::convertTo16Colors(uint8 *page, int w, int h, int pitch, int keyColor) { + const int rowAdd = pitch * 2 - w; + + uint8 *row1 = page; + uint8 *row2 = page + pitch; + + for (int i = 0; i < h; i += 2) { + for (int k = 0; k < w; k += 2) { + if (keyColor == -1 || keyColor != *row1) { + const PaletteDither &dither = _paletteDither[*row1]; + + *row1++ = dither.bestMatch; + *row1++ = dither.invertMatch; + *row2++ = dither.invertMatch; + *row2++ = dither.bestMatch; + } else { + row1 += 2; + row2 += 2; + } + } + + row1 += rowAdd; + row2 += rowAdd; + } +} + +void Screen_LoK_16::mergeOverlay(int x, int y, int w, int h) { + byte *dst = _sjisOverlayPtrs[0] + y * 640 + x; + + // We do a game screen rect to 16 color dithering here. It is + // important that we do not dither the overlay, since else the + // japanese fonts will look wrong. + convertTo16Colors(dst, w, h, 640); + + const byte *src = _sjisOverlayPtrs[1] + y * 640 + x; + + int add = 640 - w; + + while (h--) { + for (x = 0; x < w; ++x, ++dst) { + byte col = *src++; + if (col != _sjisInvisibleColor) + *dst = _paletteDither[col].bestMatch; + } + dst += add; + src += add; + } +} + +void Screen_LoK_16::set16ColorPalette(const uint8 *pal) { + uint8 palette[16 * 4]; + for (int i = 0; i < 16; ++i) { + palette[i * 4 + 0] = (pal[i * 3 + 0] * 0xFF) / 0x0F; + palette[i * 4 + 1] = (pal[i * 3 + 1] * 0xFF) / 0x0F; + palette[i * 4 + 2] = (pal[i * 3 + 2] * 0xFF) / 0x0F; + palette[i * 4 + 3] = 0; + } + + _system->setPalette(palette, 0, 16); +} + } // end of namespace Kyra |