diff options
Diffstat (limited to 'engines/cine/texte.cpp')
-rw-r--r-- | engines/cine/texte.cpp | 40 |
1 files changed, 23 insertions, 17 deletions
diff --git a/engines/cine/texte.cpp b/engines/cine/texte.cpp index 33c16159ec..c8d48d3a06 100644 --- a/engines/cine/texte.cpp +++ b/engines/cine/texte.cpp @@ -39,6 +39,13 @@ const char **commandPrepositionTable; void generateMask(const byte *sprite, byte *mask, uint16 size, byte transparency); +/*! \brief Loads font data from the given file. + * The number of characters used in the font varies between game versions: + * 78 (Most PC, Amiga and Atari ST versions of Future Wars, but also Operation Stealth's Amiga demo), + * 85 (All observed versions of German Future Wars (Amiga and PC), possibly Spanish Future Wars too), + * 90 (Most PC, Amiga and Atari ST versions of Operation Stealth), + * 93 (All observed versions of German Operation Stealth (Amiga and PC)). + */ void loadTextData(const char *filename) { Common::File fileHandle; assert(filename); @@ -46,30 +53,29 @@ void loadTextData(const char *filename) { if (!fileHandle.open(filename)) error("loadTextData(): Cannot open file %s", filename); - uint entrySize = fileHandle.readUint16BE(); - uint numEntry = fileHandle.readUint16BE(); + static const uint headerSize = 2 + 2; // The entry size (16-bit) and entry count (16-bit). + const uint entrySize = fileHandle.readUint16BE(); // Observed values: 8. + const uint entryCount = fileHandle.readUint16BE(); // Observed values: 624, 680, 720, 744. + const uint fontDataSize = entryCount * entrySize; // Observed values: 4992, 5440, 5760, 5952. + const uint numChars = entryCount / entrySize; // Observed values: 78, 85, 90, 93. + const uint bytesPerChar = fontDataSize / numChars; // Observed values: 64. + static const uint bytesPerRow = FONT_WIDTH / 2; // The input font data is 4-bit so it takes only half the space + + if (headerSize + fontDataSize != fileHandle.size()) { + warning("loadTextData: file '%s' (entrySize = %d, entryCount = %d) is of incorrect size %d", filename, entrySize, entryCount, fileHandle.size()); + } - uint sourceSize = numEntry * entrySize; Common::Array<byte> source; - source.resize(sourceSize); - fileHandle.read(source.begin(), sourceSize); + source.resize(fontDataSize); + fileHandle.read(source.begin(), fontDataSize); - const int fontHeight = 8; - const int fontWidth = (g_cine->getGameType() == Cine::GType_FW) ? 16 : 8; - uint numCharacters; - uint bytesPerCharacter; if (g_cine->getGameType() == Cine::GType_FW) { - numCharacters = (g_cine->getFeatures() & GF_ALT_FONT) ? 85 : 78; - bytesPerCharacter = sourceSize / numCharacters; // TODO: Check if this could be replaced with fontWidth * fontHeight loadRelatedPalette(filename); - } else { - numCharacters = 90; - bytesPerCharacter = fontWidth * fontHeight; } - for (uint i = 0; i < numCharacters; i++) { - gfxConvertSpriteToRaw(g_cine->_textHandler.textTable[i][0], &source[i * bytesPerCharacter], fontWidth, fontHeight); - generateMask(g_cine->_textHandler.textTable[i][0], g_cine->_textHandler.textTable[i][1], fontWidth * fontHeight, 0); + for (uint i = 0; i < numChars; i++) { + gfxConvertSpriteToRaw(g_cine->_textHandler.textTable[i][FONT_DATA], &source[i * bytesPerChar], bytesPerRow, FONT_HEIGHT); + generateMask(g_cine->_textHandler.textTable[i][FONT_DATA], g_cine->_textHandler.textTable[i][FONT_MASK], FONT_WIDTH * FONT_HEIGHT, 0); } fileHandle.close(); |