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Diffstat (limited to 'graphics/decoders/bmp.cpp')
| -rw-r--r-- | graphics/decoders/bmp.cpp | 182 |
1 files changed, 0 insertions, 182 deletions
diff --git a/graphics/decoders/bmp.cpp b/graphics/decoders/bmp.cpp deleted file mode 100644 index 2eabbb7631..0000000000 --- a/graphics/decoders/bmp.cpp +++ /dev/null @@ -1,182 +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 "common/stream.h" -#include "common/textconsole.h" - -#include "graphics/pixelformat.h" -#include "graphics/surface.h" -#include "graphics/decoders/bmp.h" - -namespace Graphics { - -BitmapDecoder::BitmapDecoder() { - _surface = 0; - _palette = 0; - _paletteColorCount = 0; -} - -BitmapDecoder::~BitmapDecoder() { - destroy(); -} - -void BitmapDecoder::destroy() { - if (_surface) { - _surface->free(); - delete _surface; _surface = 0; - } - - delete[] _palette; _palette = 0; - _paletteColorCount = 0; -} - -bool BitmapDecoder::loadStream(Common::SeekableReadStream &stream) { - destroy(); - - if (stream.readByte() != 'B') - return false; - - if (stream.readByte() != 'M') - return false; - - /* uint32 fileSize = */ stream.readUint32LE(); - /* uint16 res1 = */ stream.readUint16LE(); - /* uint16 res2 = */ stream.readUint16LE(); - uint32 imageOffset = stream.readUint32LE(); - - uint32 infoSize = stream.readUint32LE(); - if (infoSize != 40) { - warning("Only Windows v3 bitmaps are supported"); - return false; - } - - uint32 width = stream.readUint32LE(); - int32 height = stream.readSint32LE(); - - if (width == 0 || height == 0) - return false; - - if (height < 0) { - warning("Right-side up bitmaps not supported"); - return false; - } - - /* uint16 planes = */ stream.readUint16LE(); - uint16 bitsPerPixel = stream.readUint16LE(); - - if (bitsPerPixel != 8 && bitsPerPixel != 24 && bitsPerPixel != 32) { - warning("%dbpp bitmaps not supported", bitsPerPixel); - return false; - } - - uint32 compression = stream.readUint32LE(); - - if (compression != 0) { - warning("Compressed bitmaps not supported"); - return false; - } - - /* uint32 imageSize = */ stream.readUint32LE(); - /* uint32 pixelsPerMeterX = */ stream.readUint32LE(); - /* uint32 pixelsPerMeterY = */ stream.readUint32LE(); - _paletteColorCount = stream.readUint32LE(); - /* uint32 colorsImportant = */ stream.readUint32LE(); - - if (bitsPerPixel == 8) { - if (_paletteColorCount == 0) - _paletteColorCount = 256; - - // Read the palette - _palette = new byte[_paletteColorCount * 3]; - for (uint16 i = 0; i < _paletteColorCount; i++) { - _palette[i * 3 + 2] = stream.readByte(); - _palette[i * 3 + 1] = stream.readByte(); - _palette[i * 3 + 0] = stream.readByte(); - stream.readByte(); - } - } - - // Start us at the beginning of the image - stream.seek(imageOffset); - - Graphics::PixelFormat format = Graphics::PixelFormat::createFormatCLUT8(); - - // BGRA for 24bpp and 32 bpp - if (bitsPerPixel == 24 || bitsPerPixel == 32) - format = Graphics::PixelFormat(4, 8, 8, 8, 8, 8, 16, 24, 0); - - _surface = new Graphics::Surface(); - _surface->create(width, height, format); - - int srcPitch = width * (bitsPerPixel >> 3); - const int extraDataLength = (srcPitch % 4) ? 4 - (srcPitch % 4) : 0; - - if (bitsPerPixel == 8) { - byte *dst = (byte *)_surface->getPixels(); - - for (int32 i = 0; i < height; i++) { - stream.read(dst + (height - i - 1) * width, width); - stream.skip(extraDataLength); - } - } else if (bitsPerPixel == 24) { - byte *dst = (byte *)_surface->getBasePtr(0, height - 1); - - for (int32 i = 0; i < height; i++) { - for (uint32 j = 0; j < width; j++) { - byte b = stream.readByte(); - byte g = stream.readByte(); - byte r = stream.readByte(); - uint32 color = format.RGBToColor(r, g, b); - - *((uint32 *)dst) = color; - dst += format.bytesPerPixel; - } - - stream.skip(extraDataLength); - dst -= _surface->pitch * 2; - } - } else { // 32 bpp - byte *dst = (byte *)_surface->getBasePtr(0, height - 1); - - for (int32 i = 0; i < height; i++) { - for (uint32 j = 0; j < width; j++) { - byte b = stream.readByte(); - byte g = stream.readByte(); - byte r = stream.readByte(); - // Ignore the last byte, as in v3 it is unused - // and should thus NOT be used as alpha. - // ref: http://msdn.microsoft.com/en-us/library/windows/desktop/dd183376%28v=vs.85%29.aspx - stream.readByte(); - uint32 color = format.RGBToColor(r, g, b); - - *((uint32 *)dst) = color; - dst += format.bytesPerPixel; - } - - stream.skip(extraDataLength); - dst -= _surface->pitch * 2; - } - } - - return true; -} - -} // End of namespace Graphics |