diff options
Diffstat (limited to 'engines')
| -rw-r--r-- | engines/groovie/roq.cpp | 73 | ||||
| -rw-r--r-- | engines/groovie/roq.h | 3 |
2 files changed, 50 insertions, 26 deletions
diff --git a/engines/groovie/roq.cpp b/engines/groovie/roq.cpp index 1181cc56d8..0720a7292d 100644 --- a/engines/groovie/roq.cpp +++ b/engines/groovie/roq.cpp @@ -122,12 +122,16 @@ uint16 ROQPlayer::loadInternal() { // Clear the dirty flag _dirty = true; + // Reset the codebooks + _num2blocks = 0; + _num4blocks = 0; + if ((blockHeader.size == 0) && (blockHeader.param == 0)) { // Set the offset scaling to 2 _offScale = 2; // Hardcoded FPS - return 25; + return 30; } else if (blockHeader.size == (uint32)-1) { // Set the offset scaling to 1 _offScale = 1; @@ -280,11 +284,14 @@ bool ROQPlayer::processBlockInfo(ROQBlockHeader &blockHeader) { debugC(5, kGroovieDebugVideo | kGroovieDebugAll, "Groovie::ROQ: Processing info block"); // Verify the block header - if (blockHeader.type != 0x1001 || blockHeader.size != 8 || blockHeader.param != 0) { + if (blockHeader.type != 0x1001 || blockHeader.size != 8 || (blockHeader.param != 0 && blockHeader.param != 1)) { warning("Groovie::ROQ: BlockInfo size=%d param=%d", blockHeader.size, blockHeader.param); return false; } + // Save the alpha channel size + _alpha = blockHeader.param; + // Read the information uint16 width = _file->readUint16LE(); uint16 height = _file->readUint16LE(); @@ -323,22 +330,30 @@ bool ROQPlayer::processBlockInfo(ROQBlockHeader &blockHeader) { bool ROQPlayer::processBlockQuadCodebook(ROQBlockHeader &blockHeader) { debugC(5, kGroovieDebugVideo | kGroovieDebugAll, "Groovie::ROQ: Processing quad codebook block"); - // Get the number of 2x2 pixel blocks - _num2blocks = blockHeader.param >> 8; - if (_num2blocks == 0) { - _num2blocks = 256; + // Get the number of 2x2 pixel blocks to read + int newNum2blocks = blockHeader.param >> 8; + if (newNum2blocks == 0) { + newNum2blocks = 256; } + if (newNum2blocks > _num2blocks) + _num2blocks = newNum2blocks; // Get the number of 4x4 pixel blocks _num4blocks = blockHeader.param & 0xFF; - if ((_num4blocks == 0) && (blockHeader.size > (uint32)_num2blocks * 6)) { + if ((_num4blocks == 0) && (blockHeader.size > (uint32)_num2blocks * (6 + _alpha * 4))) { _num4blocks = 256; } // Read the 2x2 codebook - for (int i = 0; i < _num2blocks; i++) { - // Read the 4 Y components and the subsampled Cb and Cr - _file->read(&_codebook2[i * 6], 6); + for (int i = 0; i < newNum2blocks; i++) { + // Read the 4 Y components and their alpha channel + for (int j = 0; j < 4; j++) { + _codebook2[i * 10 + j * 2] = _file->readByte(); + _codebook2[i * 10 + j * 2 + 1] = _alpha ? _file->readByte() : 255; + } + + // Read the subsampled Cb and Cr + _file->read(&_codebook2[i * 10 + 8], 2); } // Read the 4x4 codebook @@ -566,18 +581,22 @@ void ROQPlayer::paint2(byte i, int destx, int desty) { error("Groovie::ROQ: Invalid 2x2 block %d (%d available)", i, _num2blocks); } - byte *block = &_codebook2[i * 6]; - byte u = block[4]; - byte v = block[5]; + byte *block = &_codebook2[i * 10]; + byte u = block[8]; + byte v = block[9]; byte *ptr = (byte *)_currBuf->getBasePtr(destx, desty); for (int y = 0; y < 2; y++) { for (int x = 0; x < 2; x++) { - *ptr = *block; - *(ptr + 1) = u; - *(ptr + 2) = v; + // Basic alpha test + // TODO: Blending + if (*(block + 1) > 128) { + *ptr = *block; + *(ptr + 1) = u; + *(ptr + 2) = v; + } ptr += 3; - block++; + block += 2; } ptr += _currBuf->pitch - 6; } @@ -605,21 +624,25 @@ void ROQPlayer::paint8(byte i, int destx, int desty) { byte *block4 = &_codebook4[i * 4]; for (int y4 = 0; y4 < 2; y4++) { for (int x4 = 0; x4 < 2; x4++) { - byte *block2 = &_codebook2[(*block4) * 6]; - byte u = block2[4]; - byte v = block2[5]; + byte *block2 = &_codebook2[(*block4) * 10]; + byte u = block2[8]; + byte v = block2[9]; block4++; for (int y2 = 0; y2 < 2; y2++) { for (int x2 = 0; x2 < 2; x2++) { for (int repy = 0; repy < 2; repy++) { for (int repx = 0; repx < 2; repx++) { - byte *ptr = (byte *)_currBuf->getBasePtr(destx + x4*4 + x2*2 + repx, desty + y4*4 + y2*2 + repy); - *ptr = *block2; - *(ptr + 1) = u; - *(ptr + 2) = v; + // Basic alpha test + // TODO: Blending + if (*(block2 + 1) > 128) { + byte *ptr = (byte *)_currBuf->getBasePtr(destx + x4*4 + x2*2 + repx, desty + y4*4 + y2*2 + repy); + *ptr = *block2; + *(ptr + 1) = u; + *(ptr + 2) = v; + } } } - block2++; + block2 += 2; } } } diff --git a/engines/groovie/roq.h b/engines/groovie/roq.h index b96b195ae7..5173edaf15 100644 --- a/engines/groovie/roq.h +++ b/engines/groovie/roq.h @@ -80,7 +80,7 @@ private: // Codebooks uint16 _num2blocks; uint16 _num4blocks; - byte _codebook2[256 * 6]; + byte _codebook2[256 * 10]; byte _codebook4[256 * 4]; // Buffers @@ -91,6 +91,7 @@ private: byte _scale; byte _offScale; bool _dirty; + byte _alpha; #ifdef DITHER // Dithering |