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https://github.com/libretro/scummvm.git
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GRAPHICS: Split the NE cursor code from the NEResources class
Now the code lies in Graphics and all cursors are not cached upon opening an exe. The engine is now in charge of caching which cursors it wants.
This commit is contained in:
Matthew Hoops
parent
550cff84f8
commit
c66233f83e
@ -32,153 +32,6 @@
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namespace Common {
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NECursor::NECursor() {
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_width = 0;
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_height = 0;
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_hotspotX = 0;
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_hotspotY = 0;
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_surface = 0;
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_keyColor = 0;
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memset(_palette, 0, 256 * 3);
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}
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NECursor::~NECursor() {
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clear();
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}
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uint16 NECursor::getWidth() const {
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return _width;
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}
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uint16 NECursor::getHeight() const {
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return _height;
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}
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uint16 NECursor::getHotspotX() const {
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return _hotspotX;
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}
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uint16 NECursor::getHotspotY() const {
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return _hotspotY;
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}
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byte NECursor::getKeyColor() const {
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return _keyColor;
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}
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void NECursor::setDimensions(uint16 width, uint16 height) {
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_width = width;
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_height = height;
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}
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void NECursor::setHotspot(uint16 x, uint16 y) {
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_hotspotX = x;
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_hotspotY = y;
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}
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bool NECursor::readCursor(SeekableReadStream &stream, uint32 count) {
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clear();
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SeekableReadStream *bitmap = stream.readStream(count);
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_surface = new byte[_width * _height];
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uint32 width = _width;
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uint32 height = _height * 2;
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// Sanity checks
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assert((width > 0) && (height > 0));
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// Check header size
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if (bitmap->readUint32LE() != 40)
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return false;
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// Check dimensions
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if (bitmap->readUint32LE() != width)
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return false;
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if (bitmap->readUint32LE() != height)
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return false;
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// Color planes
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if (bitmap->readUint16LE() != 1)
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return false;
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// Bits per pixel
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if (bitmap->readUint16LE() != 1)
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return false;
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// Compression
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if (bitmap->readUint32LE() != 0)
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return false;
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// Image size + X resolution + Y resolution
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bitmap->skip(12);
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uint32 numColors = bitmap->readUint32LE();
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if (numColors == 0)
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numColors = 2;
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else if (numColors > 2)
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return false;
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// Assert that enough data is there for the whole cursor
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if ((uint32)bitmap->size() < 40 + numColors * 4 + width * height / 8)
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return false;
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// Height includes AND-mask and XOR-mask
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height /= 2;
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// Standard palette: transparent, black, white
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_palette[6] = 0xff;
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_palette[7] = 0xff;
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_palette[8] = 0xff;
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// Reading the palette
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bitmap->seek(40);
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for (uint32 i = 0 ; i < numColors; i++) {
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_palette[(i + 1) * 3 + 2] = bitmap->readByte();
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_palette[(i + 1) * 3 + 1] = bitmap->readByte();
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_palette[(i + 1) * 3 + 0] = bitmap->readByte();
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bitmap->readByte();
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}
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// Reading the bitmap data
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uint32 dataSize = bitmap->size() - 40 - numColors * 4;
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byte *initialSource = new byte[dataSize];
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bitmap->read(initialSource, dataSize);
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const byte *srcP = initialSource;
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const byte *srcM = srcP + ((width * height) / 8);
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byte *dest = _surface + width * (height - 1);
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for (uint32 i = 0; i < height; i++) {
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byte *rowDest = dest;
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for (uint32 j = 0; j < (width / 8); j++) {
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byte p = srcP[j];
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byte m = srcM[j];
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for (int k = 0; k < 8; k++, rowDest++, p <<= 1, m <<= 1) {
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if ((m & 0x80) != 0x80) {
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if ((p & 0x80) == 0x80)
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*rowDest = 2;
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else
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*rowDest = 1;
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} else
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*rowDest = _keyColor;
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}
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}
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dest -= width;
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srcP += width / 8;
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srcM += width / 8;
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}
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delete bitmap;
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delete[] initialSource;
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return true;
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}
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void NECursor::clear() {
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delete[] _surface; _surface = 0;
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}
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NEResources::NEResources() {
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_exe = 0;
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}
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@ -194,16 +47,6 @@ void NEResources::clear() {
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}
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_resources.clear();
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for (uint32 i = 0; i < _cursors.size(); i++)
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for (uint32 j = 0; j < _cursors[i].cursors.size(); j++)
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delete _cursors[i].cursors[j];
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_cursors.clear();
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}
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const Array<NECursorGroup> &NEResources::getCursors() const {
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return _cursors;
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}
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bool NEResources::loadFromEXE(const String &fileName) {
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@ -237,9 +80,6 @@ bool NEResources::loadFromEXE(SeekableReadStream *stream) {
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if (!readResourceTable(offsetResourceTable))
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return false;
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if (!readCursors())
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return false;
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return true;
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}
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@ -444,121 +284,4 @@ const Array<WinResourceID> NEResources::getIDList(uint16 type) const {
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return idArray;
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}
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bool NEResources::readCursors() {
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uint32 cursorCount = 0;
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for (List<Resource>::const_iterator it = _resources.begin(); it != _resources.end(); ++it)
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if (it->type == kNEGroupCursor)
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cursorCount++;
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if (cursorCount == 0) {
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_cursors.clear();
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return true;
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}
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_cursors.resize(cursorCount);
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Array<NECursorGroup>::iterator cursorGroup = _cursors.begin();
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for (List<Resource>::const_iterator it = _resources.begin(); it != _resources.end(); ++it) {
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if (it->type == kNEGroupCursor) {
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if (!readCursorGroup(*cursorGroup, *it))
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return false;
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++cursorGroup;
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}
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}
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return true;
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}
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bool NEResources::readCursorGroup(NECursorGroup &group, const Resource &resource) {
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if (!_exe)
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return false;
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if (resource.size <= 6)
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return false;
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if (!_exe->seek(resource.offset))
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return false;
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byte *data = new byte[resource.size];
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if (!_exe->read(data, resource.size)) {
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delete[] data;
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return false;
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}
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uint32 cursorCount = READ_LE_UINT16(data + 4);
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if (resource.size < (6 + cursorCount * 16)) {
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delete[] data;
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return false;
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}
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group.cursors.resize(cursorCount);
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uint32 offset = 6;
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for (uint32 i = 0; i < cursorCount; i++) {
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group.cursors[i] = new NECursor();
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NECursor *cursor = group.cursors[i];
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// Plane count
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if (READ_LE_UINT16(data + offset + 4) != 1) {
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delete[] data;
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return false;
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}
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// Bit count
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if (READ_LE_UINT16(data + offset + 6) != 1) {
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delete[] data;
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return false;
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}
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uint32 id = READ_LE_UINT32(data + offset + 12);
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const Resource *cursorResource = findResource(kNECursor, id);
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if (!cursorResource) {
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delete[] data;
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return false;
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}
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cursor->setDimensions(READ_LE_UINT16(data + offset), READ_LE_UINT16(data + offset + 2) / 2);
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uint32 dataSize = READ_LE_UINT32(data + offset + 8);
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if (!readCursor(*cursor, *cursorResource, dataSize)) {
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delete[] data;
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return false;
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}
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offset += 16;
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}
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group.id = resource.id;
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delete[] data;
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return true;
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}
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bool NEResources::readCursor(NECursor &cursor, const Resource &resource, uint32 size) {
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if (!_exe)
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return false;
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if (size <= 4)
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return false;
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if (resource.size < size)
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return false;
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if (!_exe->seek(resource.offset))
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return false;
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uint32 hotspotX = _exe->readUint16LE();
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uint32 hotspotY = _exe->readUint16LE();
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cursor.setHotspot(hotspotX, hotspotY);
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size -= 4;
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if (!cursor.readCursor(*_exe, size))
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return false;
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return true;
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}
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} // End of namespace Common
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@ -36,54 +36,6 @@ class MemoryReadStream;
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class SeekableReadStream;
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class String;
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/** A New Executable cursor. */
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class NECursor {
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public:
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NECursor();
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~NECursor();
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/** Return the cursor's width. */
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uint16 getWidth() const;
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/** Return the cursor's height. */
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uint16 getHeight() const;
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/** Return the cursor's hotspot's x coordinate. */
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uint16 getHotspotX() const;
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/** Return the cursor's hotspot's y coordinate. */
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uint16 getHotspotY() const;
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/** Return the cursor's transparent key. */
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byte getKeyColor() const;
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const byte *getSurface() const { return _surface; }
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const byte *getPalette() const { return _palette; }
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/** Set the cursor's dimensions. */
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void setDimensions(uint16 width, uint16 height);
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/** Set the cursor's hotspot. */
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void setHotspot(uint16 x, uint16 y);
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/** Read the cursor's data out of a stream. */
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bool readCursor(SeekableReadStream &stream, uint32 count);
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private:
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byte *_surface;
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byte _palette[256 * 3];
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uint16 _width; ///< The cursor's width.
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uint16 _height; ///< The cursor's height.
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uint16 _hotspotX; ///< The cursor's hotspot's x coordinate.
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uint16 _hotspotY; ///< The cursor's hotspot's y coordinate.
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byte _keyColor; ///< The cursor's transparent key
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/** Clear the cursor. */
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void clear();
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};
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/** A New Executable cursor group. */
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struct NECursorGroup {
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WinResourceID id;
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Array<NECursor *> cursors; ///< The cursors.
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};
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/** The default Windows resources. */
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enum NEResourceType {
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kNECursor = 0x8001,
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@ -132,9 +84,6 @@ public:
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/** Load from a stream. */
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bool loadFromEXE(SeekableReadStream *stream);
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/** Get all cursor's read from the New Executable. */
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const Array<NECursorGroup> &getCursors() const;
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/** Return a list of resources for a given type. */
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const Array<WinResourceID> getIDList(uint16 type) const;
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@ -161,19 +110,11 @@ private:
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/** All resources. */
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List<Resource> _resources;
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/** All cursor resources. */
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Array<NECursorGroup> _cursors;
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/** Read the offset to the resource table. */
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uint32 getResourceTableOffset();
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/** Read the resource table. */
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bool readResourceTable(uint32 offset);
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// Cursor reading helpers
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bool readCursors();
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bool readCursorGroup(NECursorGroup &group, const Resource &resource);
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bool readCursor(NECursor &cursor, const Resource &resource, uint32 size);
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/** Find a specific resource. */
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const Resource *findResource(uint16 type, WinResourceID id) const;
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@ -34,6 +34,7 @@
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#include "common/system.h"
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#include "common/winexe_ne.h"
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#include "graphics/cursorman.h"
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#include "graphics/wincursor.h"
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namespace Mohawk {
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@ -295,16 +296,14 @@ NECursorManager::~NECursorManager() {
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}
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void NECursorManager::setCursor(uint16 id) {
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if (!_exe) {
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Common::Array<Common::NECursorGroup> cursors = _exe->getCursors();
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if (_exe) {
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Graphics::WinCursorGroup *cursorGroup = Graphics::WinCursorGroup::createCursorGroup(*_exe, id);
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for (uint32 i = 0; i < cursors.size(); i++) {
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if (cursors[i].id == id) {
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Common::NECursor *cursor = cursors[i].cursors[0];
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CursorMan.replaceCursor(cursor->getSurface(), cursor->getWidth(), cursor->getHeight(), cursor->getHotspotX(), cursor->getHotspotY(), cursor->getKeyColor());
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CursorMan.replaceCursorPalette(cursor->getPalette(), 0, 256);
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return;
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}
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if (cursorGroup) {
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Graphics::WinCursor *cursor = cursorGroup->cursors[0].cursor;
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CursorMan.replaceCursor(cursor->getSurface(), cursor->getWidth(), cursor->getHeight(), cursor->getHotspotX(), cursor->getHotspotY(), cursor->getKeyColor());
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CursorMan.replaceCursorPalette(cursor->getPalette(), 0, 256);
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return;
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}
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}
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@ -23,7 +23,8 @@ MODULE_OBJS := \
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surface.o \
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thumbnail.o \
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VectorRenderer.o \
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VectorRendererSpec.o
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VectorRendererSpec.o \
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wincursor.o
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ifdef USE_SCALERS
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MODULE_OBJS += \
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235
graphics/wincursor.cpp
Normal file
235
graphics/wincursor.cpp
Normal file
@ -0,0 +1,235 @@
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/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
|
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* along with this program; if not, write to the Free Software
|
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#include "common/debug.h"
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#include "common/file.h"
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#include "common/memstream.h"
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#include "common/str.h"
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#include "common/stream.h"
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#include "common/winexe_ne.h"
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#include "graphics/wincursor.h"
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namespace Graphics {
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WinCursor::WinCursor() {
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_width = 0;
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_height = 0;
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_hotspotX = 0;
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_hotspotY = 0;
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_surface = 0;
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_keyColor = 0;
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memset(_palette, 0, 256 * 3);
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}
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WinCursor::~WinCursor() {
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clear();
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}
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uint16 WinCursor::getWidth() const {
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return _width;
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}
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uint16 WinCursor::getHeight() const {
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return _height;
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}
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uint16 WinCursor::getHotspotX() const {
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return _hotspotX;
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}
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uint16 WinCursor::getHotspotY() const {
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return _hotspotY;
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}
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byte WinCursor::getKeyColor() const {
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return _keyColor;
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}
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bool WinCursor::readFromStream(Common::SeekableReadStream &stream) {
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clear();
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_hotspotX = stream.readUint16LE();
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_hotspotY = stream.readUint16LE();
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// Check header size
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if (stream.readUint32LE() != 40)
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return false;
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// Check dimensions
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_width = stream.readUint32LE();
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_height = stream.readUint32LE() / 2;
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// Color planes
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if (stream.readUint16LE() != 1)
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return false;
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// Bits per pixel
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if (stream.readUint16LE() != 1)
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return false;
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// Compression
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if (stream.readUint32LE() != 0)
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return false;
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// Image size + X resolution + Y resolution
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stream.skip(12);
|
||||
|
||||
uint32 numColors = stream.readUint32LE();
|
||||
|
||||
if (numColors == 0)
|
||||
numColors = 2;
|
||||
else if (numColors > 2)
|
||||
return false;
|
||||
|
||||
// Sanity check: ensure that enough data is there for the whole cursor
|
||||
if ((uint32)(stream.size() - stream.pos()) < 40 + numColors * 4 + _width * _height * 2 / 8)
|
||||
return false;
|
||||
|
||||
// Standard palette: transparent, black, white
|
||||
_palette[6] = 0xff;
|
||||
_palette[7] = 0xff;
|
||||
_palette[8] = 0xff;
|
||||
|
||||
// Reading the palette
|
||||
stream.seek(40 + 4);
|
||||
for (uint32 i = 0 ; i < numColors; i++) {
|
||||
_palette[(i + 1) * 3 + 2] = stream.readByte();
|
||||
_palette[(i + 1) * 3 + 1] = stream.readByte();
|
||||
_palette[(i + 1) * 3 + 0] = stream.readByte();
|
||||
stream.readByte();
|
||||
}
|
||||
|
||||
// Reading the bitmap data
|
||||
uint32 dataSize = stream.size() - stream.pos();
|
||||
byte *initialSource = new byte[dataSize];
|
||||
stream.read(initialSource, dataSize);
|
||||
const byte *srcP = initialSource;
|
||||
const byte *srcM = srcP + ((_width * _height) / 8);
|
||||
|
||||
_surface = new byte[_width * _height];
|
||||
byte *dest = _surface + _width * (_height - 1);
|
||||
|
||||
for (uint32 i = 0; i < _height; i++) {
|
||||
byte *rowDest = dest;
|
||||
|
||||
for (uint32 j = 0; j < (_width / 8); j++) {
|
||||
byte p = srcP[j];
|
||||
byte m = srcM[j];
|
||||
|
||||
for (int k = 0; k < 8; k++, rowDest++, p <<= 1, m <<= 1) {
|
||||
if ((m & 0x80) != 0x80) {
|
||||
if ((p & 0x80) == 0x80)
|
||||
*rowDest = 2;
|
||||
else
|
||||
*rowDest = 1;
|
||||
} else
|
||||
*rowDest = _keyColor;
|
||||
}
|
||||
}
|
||||
|
||||
dest -= _width;
|
||||
srcP += _width / 8;
|
||||
srcM += _width / 8;
|
||||
}
|
||||
|
||||
delete[] initialSource;
|
||||
return true;
|
||||
}
|
||||
|
||||
void WinCursor::clear() {
|
||||
delete[] _surface; _surface = 0;
|
||||
}
|
||||
|
||||
WinCursorGroup::WinCursorGroup() {
|
||||
}
|
||||
|
||||
WinCursorGroup::~WinCursorGroup() {
|
||||
for (uint32 i = 0; i < cursors.size(); i++)
|
||||
delete cursors[i].cursor;
|
||||
}
|
||||
|
||||
WinCursorGroup *WinCursorGroup::createCursorGroup(Common::NEResources &exe, const Common::WinResourceID &id) {
|
||||
Common::SeekableReadStream *stream = exe.getResource(Common::kNEGroupCursor, id);
|
||||
|
||||
if (!stream || stream->size() <= 6)
|
||||
return 0;
|
||||
|
||||
stream->skip(4);
|
||||
uint32 cursorCount = stream->readUint16LE();
|
||||
if ((uint32)stream->size() < (6 + cursorCount * 16))
|
||||
return 0;
|
||||
|
||||
WinCursorGroup *group = new WinCursorGroup();
|
||||
group->cursors.reserve(cursorCount);
|
||||
|
||||
for (uint32 i = 0; i < cursorCount; i++) {
|
||||
stream->readUint16LE(); // width
|
||||
stream->readUint16LE(); // height
|
||||
|
||||
// Plane count
|
||||
if (stream->readUint16LE() != 1) {
|
||||
delete stream;
|
||||
delete group;
|
||||
return 0;
|
||||
}
|
||||
|
||||
// Bit count
|
||||
if (stream->readUint16LE() != 1) {
|
||||
delete stream;
|
||||
delete group;
|
||||
return 0;
|
||||
}
|
||||
|
||||
stream->readUint32LE(); // data size
|
||||
uint32 cursorId = stream->readUint32LE();
|
||||
|
||||
Common::SeekableReadStream *cursorStream = exe.getResource(Common::kNECursor, cursorId);
|
||||
if (!cursorStream) {
|
||||
delete stream;
|
||||
delete group;
|
||||
return 0;
|
||||
}
|
||||
|
||||
WinCursor *cursor = new WinCursor();
|
||||
if (!cursor->readFromStream(*cursorStream)) {
|
||||
delete stream;
|
||||
delete cursorStream;
|
||||
delete cursor;
|
||||
delete group;
|
||||
return 0;
|
||||
}
|
||||
|
||||
delete cursorStream;
|
||||
|
||||
CursorItem item;
|
||||
item.id = cursorId;
|
||||
item.cursor = cursor;
|
||||
group->cursors.push_back(item);
|
||||
}
|
||||
|
||||
delete stream;
|
||||
return group;
|
||||
}
|
||||
|
||||
} // End of namespace Graphics
|
||||
94
graphics/wincursor.h
Normal file
94
graphics/wincursor.h
Normal file
@ -0,0 +1,94 @@
|
||||
/* 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.
|
||||
*
|
||||
* $URL$
|
||||
* $Id$
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef GRAPHICS_WINCURSOR_H
|
||||
#define GRAPHICS_WINCURSOR_H
|
||||
|
||||
#include "common/array.h"
|
||||
#include "common/winexe.h"
|
||||
|
||||
namespace Common {
|
||||
class NEResources;
|
||||
class PEResources;
|
||||
class SeekableReadStream;
|
||||
}
|
||||
|
||||
namespace Graphics {
|
||||
|
||||
/** A Windows cursor. */
|
||||
class WinCursor {
|
||||
public:
|
||||
WinCursor();
|
||||
~WinCursor();
|
||||
|
||||
/** Return the cursor's width. */
|
||||
uint16 getWidth() const;
|
||||
/** Return the cursor's height. */
|
||||
uint16 getHeight() const;
|
||||
/** Return the cursor's hotspot's x coordinate. */
|
||||
uint16 getHotspotX() const;
|
||||
/** Return the cursor's hotspot's y coordinate. */
|
||||
uint16 getHotspotY() const;
|
||||
/** Return the cursor's transparent key. */
|
||||
byte getKeyColor() const;
|
||||
|
||||
const byte *getSurface() const { return _surface; }
|
||||
const byte *getPalette() const { return _palette; }
|
||||
|
||||
/** Read the cursor's data out of a stream. */
|
||||
bool readFromStream(Common::SeekableReadStream &stream);
|
||||
|
||||
private:
|
||||
byte *_surface;
|
||||
byte _palette[256 * 3];
|
||||
|
||||
uint16 _width; ///< The cursor's width.
|
||||
uint16 _height; ///< The cursor's height.
|
||||
uint16 _hotspotX; ///< The cursor's hotspot's x coordinate.
|
||||
uint16 _hotspotY; ///< The cursor's hotspot's y coordinate.
|
||||
byte _keyColor; ///< The cursor's transparent key
|
||||
|
||||
/** Clear the cursor. */
|
||||
void clear();
|
||||
};
|
||||
|
||||
struct WinCursorGroup {
|
||||
WinCursorGroup();
|
||||
~WinCursorGroup();
|
||||
|
||||
struct CursorItem {
|
||||
Common::WinResourceID id;
|
||||
WinCursor *cursor;
|
||||
};
|
||||
|
||||
Common::Array<CursorItem> cursors;
|
||||
|
||||
static WinCursorGroup *createCursorGroup(Common::NEResources &exe, const Common::WinResourceID &id);
|
||||
//static WinCursorGroup *createCursorGroup(Common::PEResources &exe, const Common::WinResourceID &id);
|
||||
};
|
||||
|
||||
} // End of namespace Graphics
|
||||
|
||||
#endif
|
||||
Loading…
Reference in New Issue
Block a user