mirror of
https://github.com/libretro/scummvm.git
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84 lines
2.2 KiB
C++
84 lines
2.2 KiB
C++
/* 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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*
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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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*
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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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*/
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#include "bladerunner/image.h"
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#include "bladerunner/bladerunner.h"
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#include "bladerunner/decompress_lcw.h"
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#include "common/rect.h"
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namespace BladeRunner {
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Image::Image(BladeRunnerEngine *vm)
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: _vm(vm) {
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}
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Image::~Image() {
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_surface.free();
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}
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bool Image::open(const Common::String &name) {
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Common::SeekableReadStream *stream = _vm->getResourceStream(name);
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if (!stream) {
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debug("Image::open failed to open '%s'\n", name.c_str());
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return false;
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}
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char tag[4] = { 0 };
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stream->read(tag, 3);
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uint32 width = stream->readUint32LE();
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uint32 height = stream->readUint32LE();
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// Enforce a reasonable limit
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assert(width < 8000 && height < 8000);
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uint32 bufSize = stream->size();
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uint8 *buf = new uint8[bufSize];
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stream->read(buf, bufSize);
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uint32 dataSize = 2 * width * height;
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void *data = malloc(dataSize);
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assert(data);
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if (strcmp(tag, "LZO") == 0) {
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debug("LZO");
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} else if (strcmp(tag, "LCW") == 0) {
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decompress_lcw(buf, bufSize, (uint8*)data, dataSize);
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}
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const Graphics::PixelFormat pixelFormat(2, 5, 5, 5, 0, 10, 5, 0, 0);
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_surface.init(width, height, 2*width, data, pixelFormat);
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delete[] buf;
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delete stream;
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return true;
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}
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void Image::copyToSurface(Graphics::Surface *dst) const {
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dst->copyRectToSurface(_surface, 0, 0, Common::Rect(_surface.w, _surface.h));
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}
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} // End of namespace BladeRunner
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