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-rw-r--r--graphics/iff.cpp268
1 files changed, 0 insertions, 268 deletions
diff --git a/graphics/iff.cpp b/graphics/iff.cpp
deleted file mode 100644
index 4011126bd3..0000000000
--- a/graphics/iff.cpp
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@@ -1,268 +0,0 @@
-/* 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.
- */
-
-#include "graphics/iff.h"
-#include "graphics/surface.h"
-
-#include "common/endian.h"
-#include "common/func.h"
-#include "common/iff_container.h"
-#include "common/textconsole.h"
-#include "common/util.h"
-
-namespace Graphics {
-
-void BMHD::load(Common::ReadStream *stream) {
- assert(stream);
- stream->read(this, sizeof(BMHD));
- width = FROM_BE_16(width);
- height = FROM_BE_16(height);
- x = FROM_BE_16(x);
- y = FROM_BE_16(y);
- transparentColor = FROM_BE_16(transparentColor);
- pageWidth = FROM_BE_16(pageWidth);
- pageHeight = FROM_BE_16(pageHeight);
-}
-
-
-void ILBMDecoder::loadHeader(Common::ReadStream *stream) {
- _header.load(stream);
-}
-
-void ILBMDecoder::loadBitmap(uint32 mode, byte *buffer, Common::ReadStream *stream) {
- assert(stream);
- uint32 numPlanes = MIN(mode & ILBM_UNPACK_PLANES, (uint32)_header.depth);
- assert(numPlanes == 1 || numPlanes == 2 || numPlanes == 3 || numPlanes == 4 || numPlanes == 5 || numPlanes == 8);
-
- bool packPixels = (mode & ILBM_PACK_PLANES) != 0;
- if (numPlanes != 1 && numPlanes != 2 && numPlanes != 4) {
- packPixels = false;
- }
-
- uint32 outPitch = _header.width;
- if (packPixels) {
- outPitch /= (8 / numPlanes);
- }
- byte *out = buffer;
-
- switch (_header.pack) {
- case 1: { // PackBits compressed bitmap
- Graphics::PackBitsReadStream packStream(*stream);
-
- // setup a buffer to hold enough data to build a line in the output
- uint32 scanlineWidth = ((_header.width + 15) / 16) << 1;
- byte *scanline = new byte[scanlineWidth * _header.depth];
-
- for (uint i = 0; i < _header.height; ++i) {
- byte *s = scanline;
- for (uint32 j = 0; j < _header.depth; ++j) {
- packStream.read(s, scanlineWidth);
- s += scanlineWidth;
- }
-
- planarToChunky(out, outPitch, scanline, scanlineWidth, numPlanes, packPixels);
- out += outPitch;
- }
-
- delete[] scanline;
- break;
- }
-
- default:
- // implement other compression types here!
- error("only RLE compressed ILBM files are supported");
- break;
- }
-}
-
-void ILBMDecoder::planarToChunky(byte *out, uint32 outPitch, byte *in, uint32 inWidth, uint32 nPlanes, bool packPlanes) {
- byte pix, ofs, bit;
- byte *s;
-
- uint32 pixels = outPitch;
- if (packPlanes) {
- pixels *= (8 / nPlanes);
- }
-
- for (uint32 x = 0; x < pixels; ++x) {
-
- pix = 0;
- ofs = x >> 3;
- bit = 0x80 >> (x & 7);
-
- // first build a pixel by scanning all the usable planes in the input
- s = in;
- for (uint32 plane = 0; plane < nPlanes; ++plane) {
- if (s[ofs] & bit) {
- pix |= (1 << plane);
- }
- s += inWidth;
- }
-
-
- // then output the pixel according to the requested packing
- if (!packPlanes) {
- out[x] = pix;
- } else if (nPlanes == 1) {
- out[x / 8] |= (pix << (x & 7));
- } else if (nPlanes == 2) {
- out[x / 4] |= (pix << ((x & 3) << 1));
- } else if (nPlanes == 4) {
- out[x / 2] |= (pix << ((x & 1) << 2));
- }
- }
-
-}
-
-
-// handles PBM subtype of IFF FORM files
-//
-struct PBMDecoder {
- /**
- * PBM header data, necessary for loadBitmap()
- */
- Graphics::BMHD _header;
-
- /**
- * Fills the _header member from the given stream.
- */
- void loadHeader(Common::ReadStream *stream);
-
- /**
- * Loads and unpacks the PBM bitmap data from the stream into the buffer.
- * The functions assumes the buffer is large enough to contain all data.
- */
- void loadBitmap(byte *buffer, Common::ReadStream *stream);
-};
-
-void PBMDecoder::loadHeader(Common::ReadStream *stream) {
- _header.load(stream);
-}
-
-
-void PBMDecoder::loadBitmap(byte *buffer, Common::ReadStream *stream) {
- uint32 outSize = _header.width * _header.height;
-
- switch (_header.pack) {
- case 0:
- stream->read(buffer, outSize);
- break;
-
- case 1: {
- PackBitsReadStream packStream(*stream);
- packStream.read(buffer, outSize);
- break;
- }
- }
-}
-
-
-struct PBMLoader {
- PBMDecoder _decoder;
- Surface *_surface;
- byte *_colors;
-
- void load(Common::ReadStream &input, Surface &surface, byte *&colors) {
- _surface = &surface;
- _colors = colors;
- Common::IFFParser parser(&input);
- Common::Functor1Mem<Common::IFFChunk &, bool, PBMLoader> c(this, &PBMLoader::callback);
- parser.parse(c);
- }
-
- bool callback(Common::IFFChunk &chunk) {
- switch (chunk._type) {
- case ID_BMHD:
- _decoder.loadHeader(chunk._stream);
- break;
-
- case ID_CMAP:
- if (_colors) {
- chunk._stream->read(_colors, chunk._size);
- }
- break;
-
- case ID_BODY:
- if (_surface) {
- _surface->create(_decoder._header.width, _decoder._header.height, PixelFormat::createFormatCLUT8());
- _decoder.loadBitmap((byte *)_surface->pixels, chunk._stream);
- }
- return true; // stop the parser
- }
-
- return false;
- }
-};
-
-void decodePBM(Common::ReadStream &input, Surface &surface, byte *colors) {
- PBMLoader loader;
- loader.load(input, surface, colors);
-}
-
-
-
-
-PackBitsReadStream::PackBitsReadStream(Common::ReadStream &input) : _input(&input) {
-}
-
-PackBitsReadStream::~PackBitsReadStream() {
-}
-
-bool PackBitsReadStream::eos() const {
- return _input->eos();
-}
-
-uint32 PackBitsReadStream::read(void *dataPtr, uint32 dataSize) {
- byte *out = (byte *)dataPtr;
- uint32 left = dataSize;
-
- uint32 lenR = 0, lenW = 0;
- while (left > 0 && !_input->eos()) {
- lenR = _input->readByte();
-
- if (lenR == 128) {
- // no-op
- lenW = 0;
- } else if (lenR <= 127) {
- // literal run
- lenR++;
- lenW = MIN(lenR, left);
- for (uint32 j = 0; j < lenW; j++) {
- *out++ = _input->readByte();
- }
- for (; lenR > lenW; lenR--) {
- _input->readByte();
- }
- } else { // len > 128
- // expand run
- lenW = MIN((256 - lenR) + 1, left);
- byte val = _input->readByte();
- memset(out, val, lenW);
- out += lenW;
- }
-
- left -= lenW;
- }
-
- return dataSize - left;
-}
-
-} // End of namespace Graphics
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