mirror of https://github.com/TTimo/GtkRadiant.git
93 lines
2.9 KiB
C++
93 lines
2.9 KiB
C++
/*
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Copyright (C) 2001-2006, William Joseph.
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All Rights Reserved.
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This file is part of GtkRadiant.
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GtkRadiant is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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GtkRadiant 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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You should have received a copy of the GNU General Public License
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along with GtkRadiant; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "wal32.h"
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#include "ifilesystem.h"
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#include "bytestreamutils.h"
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#include "imagelib.h"
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typedef unsigned char byte;
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const int M32_NAME_LENGTH = 128;
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const int M32_MIPMAP_COUNT = 16;
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typedef struct m32_header_t
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{
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int version;
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char name[M32_NAME_LENGTH];
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char altname[M32_NAME_LENGTH]; // texture substitution
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char animname[M32_NAME_LENGTH]; // next frame in animation chain
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char damagename[M32_NAME_LENGTH]; // image that should be shown when damaged
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unsigned width[M32_MIPMAP_COUNT], height[M32_MIPMAP_COUNT];
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unsigned offsets[M32_MIPMAP_COUNT];
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int flags;
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int contents;
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int value;
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float scale_x, scale_y;
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int mip_scale;
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// detail texturing info
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char dt_name[M32_NAME_LENGTH]; // detailed texture name
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float dt_scale_x, dt_scale_y;
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float dt_u, dt_v;
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float dt_alpha;
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int dt_src_blend_mode, dt_dst_blend_mode;
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int unused[20]; // future expansion to maintain compatibility with h2
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} m32_header_t;
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Image* LoadM32Buff(byte* buffer)
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{
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PointerInputStream inputStream(buffer);
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inputStream.seek(4 // version
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+ M32_NAME_LENGTH // name
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+ M32_NAME_LENGTH // altname
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+ M32_NAME_LENGTH // animname
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+ M32_NAME_LENGTH); // damagename
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int w = istream_read_uint32_le(inputStream);
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inputStream.seek(4 * (M32_MIPMAP_COUNT - 1)); // remaining widths
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int h = istream_read_uint32_le(inputStream);
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inputStream.seek(4 * (M32_MIPMAP_COUNT - 1)); // remaining heights
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int offset = istream_read_uint32_le(inputStream);
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inputStream.seek(4 * (M32_MIPMAP_COUNT - 1)); // remaining offsets
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int flags = istream_read_uint32_le(inputStream);
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int contents = istream_read_uint32_le(inputStream);
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int value = istream_read_uint32_le(inputStream);
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RGBAImageFlags* image = new RGBAImageFlags(w, h, flags, contents, value);
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const byte* source = buffer + offset;
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std::copy(source, source + (w * h * 4), image->getRGBAPixels());
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return image;
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}
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Image* LoadM32(ArchiveFile& file)
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{
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ScopedArchiveBuffer buffer(file);
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return LoadM32Buff(buffer.buffer);
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}
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