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Diffstat (limited to 'engines/sherlock/screen.cpp')
| -rw-r--r-- | engines/sherlock/screen.cpp | 553 |
1 files changed, 553 insertions, 0 deletions
diff --git a/engines/sherlock/screen.cpp b/engines/sherlock/screen.cpp new file mode 100644 index 0000000000..782869d77e --- /dev/null +++ b/engines/sherlock/screen.cpp @@ -0,0 +1,553 @@ +/* ScummVM - Graphic Adventure Engine + * + * ScummVM is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * 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 + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + */ + +#include "sherlock/screen.h" +#include "sherlock/sherlock.h" +#include "sherlock/scalpel/scalpel_screen.h" +#include "common/system.h" +#include "common/util.h" +#include "graphics/palette.h" + +namespace Sherlock { + +Screen *Screen::init(SherlockEngine *vm) { + if (vm->getGameID() == GType_SerratedScalpel) + return new Scalpel::ScalpelScreen(vm); + else + return new Screen(vm); +} + +Screen::Screen(SherlockEngine *vm) : Surface(g_system->getWidth(), g_system->getHeight()), _vm(vm), + _backBuffer1(g_system->getWidth(), g_system->getHeight()), + _backBuffer2(g_system->getWidth(), g_system->getHeight()), + _backBuffer(&_backBuffer1) { + _transitionSeed = 1; + _fadeStyle = false; + Common::fill(&_cMap[0], &_cMap[PALETTE_SIZE], 0); + Common::fill(&_sMap[0], &_sMap[PALETTE_SIZE], 0); + Common::fill(&_tMap[0], &_tMap[PALETTE_SIZE], 0); + + // Set up the initial font + setFont(IS_SERRATED_SCALPEL ? 1 : 4); + + // Rose Tattoo specific fields + _fadeBytesRead = _fadeBytesToRead = 0; + _oldFadePercent = 0; + _flushScreen = false; +} + +Screen::~Screen() { + Fonts::free(); +} + +void Screen::update() { + // Merge the dirty rects + mergeDirtyRects(); + + // Loop through copying dirty areas to the physical screen + Common::List<Common::Rect>::iterator i; + for (i = _dirtyRects.begin(); i != _dirtyRects.end(); ++i) { + const Common::Rect &r = *i; + const byte *srcP = (const byte *)getBasePtr(r.left, r.top); + g_system->copyRectToScreen(srcP, _surface.pitch, r.left, r.top, + r.width(), r.height()); + } + + // Signal the physical screen to update + g_system->updateScreen(); + _dirtyRects.clear(); +} + +void Screen::makeAllDirty() { + addDirtyRect(Common::Rect(0, 0, this->w(), this->h())); +} + +void Screen::getPalette(byte palette[PALETTE_SIZE]) { + g_system->getPaletteManager()->grabPalette(palette, 0, PALETTE_COUNT); +} + +void Screen::setPalette(const byte palette[PALETTE_SIZE]) { + g_system->getPaletteManager()->setPalette(palette, 0, PALETTE_COUNT); +} + +int Screen::equalizePalette(const byte palette[PALETTE_SIZE]) { + int total = 0; + byte tempPalette[PALETTE_SIZE]; + getPalette(tempPalette); + + // For any palette component that doesn't already match the given destination + // palette, change by 1 towards the reference palette component + for (int idx = 0; idx < PALETTE_SIZE; ++idx) { + if (tempPalette[idx] > palette[idx]) { + tempPalette[idx] = MAX((int)palette[idx], (int)tempPalette[idx] - 4); + ++total; + } else if (tempPalette[idx] < palette[idx]) { + tempPalette[idx] = MIN((int)palette[idx], (int)tempPalette[idx] + 4); + ++total; + } + } + + if (total > 0) + // Palette changed, so reload it + setPalette(tempPalette); + + return total; +} + +void Screen::fadeToBlack(int speed) { + byte tempPalette[PALETTE_SIZE]; + Common::fill(&tempPalette[0], &tempPalette[PALETTE_SIZE], 0); + + while (equalizePalette(tempPalette)) { + _vm->_events->delay(15 * speed); + } + + setPalette(tempPalette); + fillRect(Common::Rect(0, 0, _surface.w, _surface.h), 0); +} + +void Screen::fadeIn(const byte palette[PALETTE_SIZE], int speed) { + int count = 50; + while (equalizePalette(palette) && --count) { + _vm->_events->delay(15 * speed); + } + + setPalette(palette); +} + +void Screen::addDirtyRect(const Common::Rect &r) { + _dirtyRects.push_back(r); + assert(r.width() > 0 && r.height() > 0); +} + +void Screen::mergeDirtyRects() { + Common::List<Common::Rect>::iterator rOuter, rInner; + + // Process the dirty rect list to find any rects to merge + for (rOuter = _dirtyRects.begin(); rOuter != _dirtyRects.end(); ++rOuter) { + rInner = rOuter; + while (++rInner != _dirtyRects.end()) { + + if ((*rOuter).intersects(*rInner)) { + // these two rectangles overlap or + // are next to each other - merge them + + unionRectangle(*rOuter, *rOuter, *rInner); + + // remove the inner rect from the list + _dirtyRects.erase(rInner); + + // move back to beginning of list + rInner = rOuter; + } + } + } +} + +bool Screen::unionRectangle(Common::Rect &destRect, const Common::Rect &src1, const Common::Rect &src2) { + destRect = src1; + destRect.extend(src2); + + return !destRect.isEmpty(); +} + +void Screen::randomTransition() { + Events &events = *_vm->_events; + const int TRANSITION_MULTIPLIER = 0x15a4e35; + _dirtyRects.clear(); + assert(IS_SERRATED_SCALPEL); + + for (int idx = 0; idx <= 65535 && !_vm->shouldQuit(); ++idx) { + _transitionSeed = _transitionSeed * TRANSITION_MULTIPLIER + 1; + int offset = _transitionSeed & 0xFFFF; + + if (offset < (this->w() * this->h())) + *((byte *)getPixels() + offset) = *((const byte *)_backBuffer->getPixels() + offset); + + if (idx != 0 && (idx % 300) == 0) { + // Ensure there's a full screen dirty rect for the next frame update + if (_dirtyRects.empty()) + addDirtyRect(Common::Rect(0, 0, _surface.w, _surface.h)); + + events.pollEvents(); + events.delay(1); + } + } + + // Make sure everything has been transferred + blitFrom(*_backBuffer); +} + +void Screen::verticalTransition() { + Events &events = *_vm->_events; + + byte table[640]; + Common::fill(&table[0], &table[640], 0); + + for (int yp = 0; yp < this->h(); ++yp) { + for (int xp = 0; xp < this->w(); ++xp) { + int temp = (table[xp] >= (this->h() - 3)) ? this->h() - table[xp] : + _vm->getRandomNumber(3) + 1; + + if (temp) { + blitFrom(_backBuffer1, Common::Point(xp, table[xp]), + Common::Rect(xp, table[xp], xp + 1, table[xp] + temp)); + table[xp] += temp; + } + } + + events.delay(10); + } +} + +void Screen::fadeIntoScreen3DO(int speed) { + Events &events = *_vm->_events; + uint16 *currentScreenBasePtr = (uint16 *)getPixels(); + uint16 *targetScreenBasePtr = (uint16 *)_backBuffer->getPixels(); + uint16 currentScreenPixel = 0; + uint16 targetScreenPixel = 0; + + uint16 currentScreenPixelRed = 0; + uint16 currentScreenPixelGreen = 0; + uint16 currentScreenPixelBlue = 0; + + uint16 targetScreenPixelRed = 0; + uint16 targetScreenPixelGreen = 0; + uint16 targetScreenPixelBlue = 0; + + uint16 screenWidth = this->w(); + uint16 screenHeight = this->h(); + uint16 screenX = 0; + uint16 screenY = 0; + uint16 pixelsChanged = 0; + + _dirtyRects.clear(); + + do { + pixelsChanged = 0; + uint16 *currentScreenPtr = currentScreenBasePtr; + uint16 *targetScreenPtr = targetScreenBasePtr; + + for (screenY = 0; screenY < screenHeight; screenY++) { + for (screenX = 0; screenX < screenWidth; screenX++) { + currentScreenPixel = *currentScreenPtr; + targetScreenPixel = *targetScreenPtr; + + if (currentScreenPixel != targetScreenPixel) { + // pixel doesn't match, adjust accordingly + currentScreenPixelRed = currentScreenPixel & 0xF800; + currentScreenPixelGreen = currentScreenPixel & 0x07E0; + currentScreenPixelBlue = currentScreenPixel & 0x001F; + targetScreenPixelRed = targetScreenPixel & 0xF800; + targetScreenPixelGreen = targetScreenPixel & 0x07E0; + targetScreenPixelBlue = targetScreenPixel & 0x001F; + + if (currentScreenPixelRed != targetScreenPixelRed) { + if (currentScreenPixelRed < targetScreenPixelRed) { + currentScreenPixelRed += 0x0800; + } else { + currentScreenPixelRed -= 0x0800; + } + } + if (currentScreenPixelGreen != targetScreenPixelGreen) { + // Adjust +2/-2 because we are running RGB555 at RGB565 + if (currentScreenPixelGreen < targetScreenPixelGreen) { + currentScreenPixelGreen += 0x0040; + } else { + currentScreenPixelGreen -= 0x0040; + } + } + if (currentScreenPixelBlue != targetScreenPixelBlue) { + if (currentScreenPixelBlue < targetScreenPixelBlue) { + currentScreenPixelBlue += 0x0001; + } else { + currentScreenPixelBlue -= 0x0001; + } + } + *currentScreenPtr = currentScreenPixelRed | currentScreenPixelGreen | currentScreenPixelBlue; + pixelsChanged++; + } + + currentScreenPtr++; + targetScreenPtr++; + } + } + + // Too much considered dirty at the moment + addDirtyRect(Common::Rect(0, 0, screenWidth, screenHeight)); + + events.pollEvents(); + events.delay(10 * speed); + } while ((pixelsChanged) && (!_vm->shouldQuit())); +} + +void Screen::blitFrom3DOcolorLimit(uint16 limitColor) { + uint16 *currentScreenPtr = (uint16 *)getPixels(); + uint16 *targetScreenPtr = (uint16 *)_backBuffer->getPixels(); + uint16 currentScreenPixel = 0; + + uint16 screenWidth = this->w(); + uint16 screenHeight = this->h(); + uint16 screenX = 0; + uint16 screenY = 0; + + uint16 currentScreenPixelRed = 0; + uint16 currentScreenPixelGreen = 0; + uint16 currentScreenPixelBlue = 0; + + uint16 limitPixelRed = limitColor & 0xF800; + uint16 limitPixelGreen = limitColor & 0x07E0; + uint16 limitPixelBlue = limitColor & 0x001F; + + for (screenY = 0; screenY < screenHeight; screenY++) { + for (screenX = 0; screenX < screenWidth; screenX++) { + currentScreenPixel = *targetScreenPtr; + + currentScreenPixelRed = currentScreenPixel & 0xF800; + currentScreenPixelGreen = currentScreenPixel & 0x07E0; + currentScreenPixelBlue = currentScreenPixel & 0x001F; + + if (currentScreenPixelRed < limitPixelRed) + currentScreenPixelRed = limitPixelRed; + if (currentScreenPixelGreen < limitPixelGreen) + currentScreenPixelGreen = limitPixelGreen; + if (currentScreenPixelBlue < limitPixelBlue) + currentScreenPixelBlue = limitPixelBlue; + + *currentScreenPtr = currentScreenPixelRed | currentScreenPixelGreen | currentScreenPixelBlue; + currentScreenPtr++; + targetScreenPtr++; + } + } + + // Too much considered dirty at the moment + addDirtyRect(Common::Rect(0, 0, screenWidth, screenHeight)); +} + +void Screen::restoreBackground(const Common::Rect &r) { + if (r.width() > 0 && r.height() > 0) + _backBuffer1.blitFrom(_backBuffer2, Common::Point(r.left, r.top), r); +} + +void Screen::slamArea(int16 xp, int16 yp, int16 width, int16 height) { + slamRect(Common::Rect(xp, yp, xp + width, yp + height)); +} + +void Screen::slamRect(const Common::Rect &r) { + if (r.width() && r.height() > 0) { + Common::Rect srcRect = r, destRect = r; + + destRect.translate(-_currentScroll.x, -_currentScroll.y); + + if (destRect.left < 0) { + srcRect.left += -destRect.left; + destRect.left = 0; + } + if (destRect.top < 0) { + srcRect.top += -destRect.top; + destRect.top = 0; + } + if (destRect.right > SHERLOCK_SCREEN_WIDTH) { + srcRect.right -= (destRect.left - SHERLOCK_SCREEN_WIDTH); + destRect.right = SHERLOCK_SCREEN_WIDTH; + } + if (destRect.bottom > SHERLOCK_SCREEN_HEIGHT) { + srcRect.bottom -= (destRect.bottom - SHERLOCK_SCREEN_HEIGHT); + destRect.bottom = SHERLOCK_SCREEN_HEIGHT; + } + + if (srcRect.isValidRect()) + blitFrom(*_backBuffer, Common::Point(destRect.left, destRect.top), srcRect); + } +} + + +void Screen::flushImage(ImageFrame *frame, const Common::Point &pt, int16 *xp, int16 *yp, + int16 *width, int16 *height) { + Common::Point imgPos = pt + frame->_offset; + Common::Rect newBounds(imgPos.x, imgPos.y, imgPos.x + frame->_frame.w, imgPos.y + frame->_frame.h); + Common::Rect oldBounds(*xp, *yp, *xp + *width, *yp + *height); + + if (!_flushScreen) { + // See if the areas of the old and new overlap, and if so combine the areas + if (newBounds.intersects(oldBounds)) { + Common::Rect mergedBounds = newBounds; + mergedBounds.extend(oldBounds); + mergedBounds.right += 1; + mergedBounds.bottom += 1; + + slamRect(mergedBounds); + } else { + // The two areas are independent, so copy them both + slamRect(newBounds); + slamRect(oldBounds); + } + } + + *xp = newBounds.left; + *yp = newBounds.top; + *width = newBounds.width(); + *height = newBounds.height(); +} + +void Screen::flushScaleImage(ImageFrame *frame, const Common::Point &pt, int16 *xp, int16 *yp, + int16 *width, int16 *height, int scaleVal) { + Common::Point imgPos = pt + frame->_offset; + Common::Rect newBounds(imgPos.x, imgPos.y, imgPos.x + frame->sDrawXSize(scaleVal), + imgPos.y + frame->sDrawYSize(scaleVal)); + Common::Rect oldBounds(*xp, *yp, *xp + *width, *yp + *height); + + if (!_flushScreen) { + // See if the areas of the old and new overlap, and if so combine the areas + if (newBounds.intersects(oldBounds)) { + Common::Rect mergedBounds = newBounds; + mergedBounds.extend(oldBounds); + mergedBounds.right += 1; + mergedBounds.bottom += 1; + + slamRect(mergedBounds); + } else { + // The two areas are independent, so copy them both + slamRect(newBounds); + slamRect(oldBounds); + } + } + + *xp = newBounds.left; + *yp = newBounds.top; + *width = newBounds.width(); + *height = newBounds.height(); +} + +void Screen::flushImage(ImageFrame *frame, const Common::Point &pt, Common::Rect &newBounds, int scaleVal) { + Common::Point newPos, newSize; + + if (scaleVal == 256) + flushImage(frame, pt, &newPos.x, &newPos.y, &newSize.x, &newSize.y); + else + flushScaleImage(frame, pt, &newPos.x, &newPos.y, &newSize.x, &newSize.y, scaleVal); + + // Transfer the pos and size amounts into a single bounds rect + newBounds = Common::Rect(newPos.x, newPos.y, newPos.x + newSize.x, newPos.y + newSize.y); +} + +void Screen::blockMove(const Common::Rect &r) { + Common::Rect bounds = r; + slamRect(bounds); +} + +void Screen::blockMove() { + blockMove(Common::Rect(0, 0, w(), h())); +} + +void Screen::print(const Common::Point &pt, byte color, const char *formatStr, ...) { + // Create the string to display + va_list args; + va_start(args, formatStr); + Common::String str = Common::String::vformat(formatStr, args); + va_end(args); + + // Figure out area to draw text in + Common::Point pos = pt; + int width = stringWidth(str); + pos.y--; // Font is always drawing one line higher + if (!pos.x) + // Center text horizontally + pos.x = (this->w() - width) / 2; + + Common::Rect textBounds(pos.x, pos.y, pos.x + width, pos.y + _fontHeight); + if (textBounds.right > this->w()) + textBounds.moveTo(this->w() - width, textBounds.top); + if (textBounds.bottom > this->h()) + textBounds.moveTo(textBounds.left, this->h() - _fontHeight); + + // Write out the string at the given position + writeString(str, Common::Point(textBounds.left, textBounds.top), color); + + // Copy the affected area to the screen + slamRect(textBounds); +} + +void Screen::gPrint(const Common::Point &pt, byte color, const char *formatStr, ...) { + // Create the string to display + va_list args; + va_start(args, formatStr); + Common::String str = Common::String::vformat(formatStr, args); + va_end(args); + + // Print the text + writeString(str, pt, color); +} + +void Screen::writeString(const Common::String &str, const Common::Point &pt, byte overrideColor) { + Fonts::writeString(_backBuffer, str, pt, overrideColor); +} + +void Screen::vgaBar(const Common::Rect &r, int color) { + _backBuffer->fillRect(r, color); + slamRect(r); +} + +void Screen::setDisplayBounds(const Common::Rect &r) { + _sceneSurface.setPixels(_backBuffer1.getBasePtr(r.left, r.top), r.width(), r.height(), _backBuffer1.getPixelFormat()); + + _backBuffer = &_sceneSurface; +} + +void Screen::resetDisplayBounds() { + _backBuffer = &_backBuffer1; +} + +Common::Rect Screen::getDisplayBounds() { + return (_backBuffer == &_sceneSurface) ? Common::Rect(0, 0, _sceneSurface.w(), _sceneSurface.h()) : + Common::Rect(0, 0, this->w(), this->h()); +} + +void Screen::synchronize(Serializer &s) { + int fontNumb = _fontNumber; + s.syncAsByte(fontNumb); + if (s.isLoading()) + setFont(fontNumb); +} + +void Screen::initPaletteFade(int bytesToRead) { + Common::copy(&_cMap[0], &_cMap[PALETTE_SIZE], &_sMap[0]); + Common::copy(&_cMap[0], &_cMap[PALETTE_SIZE], &_tMap[0]); + + // Set how many bytes need to be read / have been read + _fadeBytesRead = 0; + _fadeBytesToRead = bytesToRead; + _oldFadePercent = 0; +} + +int Screen::fadeRead(Common::SeekableReadStream &stream, byte *buf, int totalSize) { + warning("TODO: fadeRead"); + stream.read(buf, totalSize); + return totalSize; +} + +void Screen::translatePalette(byte palette[PALETTE_SIZE]) { + for (int idx = 0; idx < PALETTE_SIZE; ++idx) + palette[idx] = VGA_COLOR_TRANS(palette[idx]); +} + +} // End of namespace Sherlock |