C++ (Cpp) IFFDecoder::loadStream示例

示例#1

文件： scene.cpp 项目： AlbanBedel/scummvm

void Scene::changeScene(int16 sceneNumber, int actorsEntrance, SceneTransitionType transitionType, int chapter) {

	debug(5, "Scene::changeScene(%d, %d, %d, %d)", sceneNumber, actorsEntrance, transitionType, chapter);

	// This is used for latter ITE demos where all places on world map except
	// Tent Faire are substituted with IFF picture and short description
	if (_vm->_hasITESceneSubstitutes) {
		for (int i = 0; i < ARRAYSIZE(sceneSubstitutes); i++) {
			if (sceneSubstitutes[i].sceneId == sceneNumber) {
				const byte *pal;
				Common::File file;
				Rect rect;
				PalEntry cPal[PAL_ENTRIES];

				_vm->_interface->setMode(kPanelSceneSubstitute);

				if (file.open(sceneSubstitutes[i].image)) {
					Image::IFFDecoder decoder;
					decoder.loadStream(file);
					pal = decoder.getPalette();
					rect.setWidth(decoder.getSurface()->w);
					rect.setHeight(decoder.getSurface()->h);
					_vm->_gfx->drawRegion(rect, (const byte *)decoder.getSurface()->getPixels());
					for (int j = 0; j < PAL_ENTRIES; j++) {
						cPal[j].red = *pal++;
						cPal[j].green = *pal++;
						cPal[j].blue = *pal++;
					}
					_vm->_gfx->setPalette(cPal);

				}

				_vm->_interface->setStatusText("Click or Press Return to continue. Press Q to quit.", 96);
				_vm->_font->textDrawRect(kKnownFontMedium, sceneSubstitutes[i].title,
					 Common::Rect(0, 7, _vm->getDisplayInfo().width, 27), _vm->KnownColor2ColorId(kKnownColorBrightWhite), _vm->KnownColor2ColorId(kKnownColorBlack), kFontOutline);
				_vm->_font->textDrawRect(kKnownFontMedium, sceneSubstitutes[i].message,
					 Common::Rect(24, getHeight() - 33, _vm->getDisplayInfo().width - 11,
								  getHeight()), _vm->KnownColor2ColorId(kKnownColorBrightWhite), _vm->KnownColor2ColorId(kKnownColorBlack), kFontOutline);
				return;
			}
		}
	}

	LoadSceneParams sceneParams;

	sceneParams.actorsEntrance = actorsEntrance;
	sceneParams.loadFlag = kLoadBySceneNumber;
	sceneParams.sceneDescriptor = sceneNumber;
	sceneParams.transitionType = transitionType;
	sceneParams.sceneProc = NULL;
	sceneParams.sceneSkipTarget = false;
	sceneParams.chapter = chapter;

	if (sceneNumber != -2) {
		endScene();
	}

	loadScene(sceneParams);
}

示例#2

文件： inter_v7.cpp 项目： 33d/scummvm

void Inter_v7::o7_loadIFFPalette() {
	Common::String file = _vm->_game->_script->evalString();
	if (!file.contains('.'))
		file += ".LBM";

	int16 startIndex = CLIP<int16>(_vm->_game->_script->readValExpr(), 0, 255);
	int16 stopIndex  = CLIP<int16>(_vm->_game->_script->readValExpr(), 0, 255);

	if (startIndex > stopIndex)
		SWAP(startIndex, stopIndex);

	Common::SeekableReadStream *iffFile = _vm->_dataIO->getFile(file);
	if (!iffFile) {
		warning("o7_loadIFFPalette(): No such file \"%s\"", file.c_str());
		return;
	}

	ImageType type = Surface::identifyImage(*iffFile);
	if (type != kImageTypeIFF) {
		warning("o7_loadIFFPalette(): \"%s\" is no IFF", file.c_str());
		return;
	}

	Image::IFFDecoder decoder;
	decoder.loadStream(*iffFile);
	if (!decoder.getPalette() || decoder.getPaletteColorCount() != 256) {
		warning("o7_loadIFFPalette(): Failed reading palette from IFF \"%s\"", file.c_str());
		return;
	}

	const byte *palette = decoder.getPalette();

	startIndex *= 3;
	stopIndex  *= 3;

	byte *dst = (byte *)_vm->_draw->_vgaPalette + startIndex;
	const byte *src = palette + startIndex;
	for (int i = startIndex; i <= stopIndex + 2; ++i) {
		*dst++ = *src++ >> 2;
	}

	if (startIndex == 0) {
		dst = (byte *)_vm->_draw->_vgaPalette;
		dst[0] = dst[1] = dst[2] = 0x00 >> 2;
	}

示例#3

文件： cine.cpp 项目： project-cabal/cabal

void CineEngine::showSplashScreen() {
	Common::File file;
	if (!file.open("sony.lbm"))
		return;

	Image::IFFDecoder decoder;
	if (!decoder.loadStream(file))
		return;

	const Graphics::Surface *surface = decoder.getSurface();
	if (surface->getWidth() == 640 && surface->getHeight() == 480) {
		initGraphics(640, 480, true);

		const byte *palette = decoder.getPalette();
		int paletteColorCount = decoder.getPaletteColorCount();
		g_system->getPaletteManager()->setPalette(palette, 0, paletteColorCount);

		g_system->copyRectToScreen(surface->getPixels(), 640, 0, 0, 640, 480);
		g_system->updateScreen();

		Common::EventManager *eventMan = g_system->getEventManager();

		bool done = false;
		uint32 now = g_system->getMillis();

		while (!done && g_system->getMillis() - now < 2000) {
			Common::Event event;
			while (eventMan->pollEvent(event)) {
				if (event.type == Common::EVENT_KEYDOWN && event.kbd.keycode == Common::KEYCODE_ESCAPE) {
					done = true;
					break;
				}
				if (shouldQuit())
					done = true;
			}
		}
	}

	decoder.destroy();
}