C++ MemoryBlock::data方法代码示例

MemoryBlock *Disk::getEntry(uint16 id)
{
	// Get the index of the resource, if necessary opening the correct file
	uint8 index = indexOf(id);
		
	// Calculate the offset and size of the entry
	uint32 size = (uint32) _entries[index].size;
	if (_entries[index].sizeExtension) size += 0x10000;
	uint32 offset = (uint32) _entries[index].offset * 0x20;

	MemoryBlock *result = Memory::allocate(size);
	_fileHandle->seek(offset, SEEK_SET);
	_fileHandle->read(result->data(), size);
	return result;
}

MemoryBlock *Disk::getEntry(uint16 id) {
	// Special room area check
	uint16 tempId = id & 0x3fff;
	if ((tempId == 0x120) || (tempId == 0x311) || (tempId == 8) || (tempId == 0x410)) {
		ValueTableData &fieldList = Resources::getReference().fieldList();
		if (fieldList.getField(AREA_FLAG) != 0)
			id ^= 0x8000;
	}

	// Get the index of the resource, if necessary opening the correct file
	uint8 index = indexOf(id);

	// Calculate the offset and size of the entry
	uint32 size = (uint32) _entries[index].size;
	if (_entries[index].sizeExtension) size += 0x10000;
	uint32 offset = (uint32) _entries[index].offset * 0x20 + _dataOffset;

	MemoryBlock *result = Memory::allocate(size);
	_fileHandle->seek(offset, SEEK_SET);
	_fileHandle->read(result->data(), size);
	return result;
}

bool Debugger::cmd_showAnim(int argc, const char **argv) {
	Resources &res = Resources::getReference();
	if (argc < 2) {
		DebugPrintf("showAnim animId [[frame_width frame_height] | list]\n");
		return true;
	}

	// Get the animation Id
	int animId = strToInt(argv[1]);
	HotspotAnimData *data = res.getAnimation(animId);
	if (data == NULL) {
		DebugPrintf("No such animation Id exists\n");
		return true;
	}

	// Figure out the total size of the animation - this will be used for guestimating
	// frame sizes, or validating that a specified frame size is correct
	MemoryBlock *src = Disk::getReference().getEntry(data->animId);

	int numFrames = READ_LE_UINT16(src->data());
	uint16 *headerEntry = (uint16 *) (src->data() + 2);
	assert((numFrames >= 1) && (numFrames < 100));

	// Calculate total needed size for output and create memory block to hold it
	uint32 totalSize = 0;
	for (uint16 ctr = 0; ctr < numFrames; ++ctr, ++headerEntry) {
		totalSize += (READ_LE_UINT16(headerEntry) + 31) / 32;
	}
	totalSize = (totalSize + 0x81) << 4;
	MemoryBlock *dest = Memory::allocate(totalSize);

	uint32 srcStart = (numFrames + 1) * sizeof(uint16) + 6;
	uint32 destSize = AnimationDecoder::decode_data(src, dest, srcStart) - 0x40;

	// Figure out the frame size
	int frameSize;

	if ((data->flags & PIXELFLAG_HAS_TABLE) != 0) {
		// Table based animation, so get frame size from frame 1 offset
		frameSize = READ_LE_UINT16(src->data());
	} else {
		// Get frame size from dividing uncompressed size by number of frames
		frameSize = destSize / numFrames;
	}

	// Free up the data
	delete src;
	delete dest;

	int width, height;

	if (argc == 4) {
		// Width and height specified
		width = strToInt(argv[2]);
		height = strToInt(argv[3]);

		if ((width * height) != (frameSize * 2)) {
			DebugPrintf("Warning: Total size = %d, Frame size (%d,%d) * %d frames = %d bytes\n",
				destSize, width, height, numFrames, width * height * numFrames / 2);
		}
	} else {
		// Guestimate a frame size
		frameSize = destSize / numFrames;

		// Figure out the approximate starting point of a width 3/4 the frame size
		width = frameSize * 3 / 4;

		bool descFlag = (argc == 3);
		if (descFlag) DebugPrintf("Target size = %d\n", frameSize * 2);

		while ((width > 0) && (descFlag || (((frameSize * 2) % width) != 0))) {
			if (((frameSize * 2) % width) == 0)
				DebugPrintf("Frame size (%d,%d) found\n", width, frameSize * 2 / width);
			--width;
		}

		if (argc == 3) {
			DebugPrintf("Done\n");
			return true;
		} else if (width == 0) {
			DebugPrintf("Total size = %d, # frames = %d, frame Size = %d - No valid frame dimensions\n",
				destSize, numFrames, frameSize);
			return true;
		}

		height = (frameSize * 2) / width;
		DebugPrintf("# frames = %d, guestimated frame size = (%d,%d)\n",
			numFrames, width, height);
	}

	// Bottle object is used as a handy hotspot holder that doesn't have any
	// tick proc behavior that we need to worry about
	Hotspot *hotspot = res.activateHotspot(BOTTLE_HOTSPOT_ID);
	hotspot->setLayer(0xfe);
	hotspot->setSize(width, height);

	Hotspot *player = res.activateHotspot(PLAYER_ID);
	hotspot->setColorOffset(player->resource()->colorOffset);

	hotspot->setAnimation(animId);
//.........这里部分代码省略.........