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author | Filippos Karapetis | 2009-03-18 13:24:47 +0000 |
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committer | Filippos Karapetis | 2009-03-18 13:24:47 +0000 |
commit | bc37ec4ce13e2742b3fcaa2d8cd2b3a6224c0c72 (patch) | |
tree | 53327cac2a06f3809e0d50b240f70548f241b6ca /engines/sci/gfx/res_pal.cpp | |
parent | abc842b677fcc6f34e87af5aca3fc626f1552d16 (diff) | |
download | scummvm-rg350-bc37ec4ce13e2742b3fcaa2d8cd2b3a6224c0c72.tar.gz scummvm-rg350-bc37ec4ce13e2742b3fcaa2d8cd2b3a6224c0c72.tar.bz2 scummvm-rg350-bc37ec4ce13e2742b3fcaa2d8cd2b3a6224c0c72.zip |
Renamed resmgr.cpp -> gfx_resmgr.cpp
Moved all files from gfx/resource/* to gfx/*
svn-id: r39515
Diffstat (limited to 'engines/sci/gfx/res_pal.cpp')
-rw-r--r-- | engines/sci/gfx/res_pal.cpp | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/engines/sci/gfx/res_pal.cpp b/engines/sci/gfx/res_pal.cpp new file mode 100644 index 0000000000..74fb8629b7 --- /dev/null +++ b/engines/sci/gfx/res_pal.cpp @@ -0,0 +1,147 @@ +/* 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. + * + * $URL$ + * $Id$ + * + */ + +/* SCI1 palette resource defrobnicator */ + +#include "common/file.h" +#include "sci/sci_memory.h" +#include "sci/gfx/gfx_system.h" +#include "sci/gfx/gfx_resource.h" + +namespace Sci { + +#define MAX_COLORS 256 +#define PALETTE_START 260 +#define COLOR_OK 0x01 + +#define SCI_PAL_FORMAT_VARIABLE_FLAGS 0 +#define SCI_PAL_FORMAT_CONSTANT_FLAGS 1 + +Palette *gfxr_read_pal11(int id, byte *resource, int size) { + int start_color = resource[25]; + int format = resource[32]; + int entry_size = 0; + Palette *retval; + byte *pal_data = resource + 37; + int _colors_nr = READ_LE_UINT16(resource + 29); + int i; + + switch (format) { + case SCI_PAL_FORMAT_VARIABLE_FLAGS : + entry_size = 4; + break; + case SCI_PAL_FORMAT_CONSTANT_FLAGS : + entry_size = 3; + break; + } + + retval = new Palette(_colors_nr + start_color); + char buf[100]; + sprintf(buf, "read_pal11 (id %d)", id); + retval->name = buf; + + for (i = 0; i < start_color; i ++) { + retval->setColor(i, 0, 0, 0); + } + for (i = start_color; i < start_color + _colors_nr; i ++) { + switch (format) { + case SCI_PAL_FORMAT_CONSTANT_FLAGS: + retval->setColor(i, pal_data[0], pal_data[1], pal_data[2]); + break; + case SCI_PAL_FORMAT_VARIABLE_FLAGS: + retval->setColor(i, pal_data[1], pal_data[2], pal_data[3]); + break; + } + pal_data += entry_size; + } + + return retval; +} + +Palette *gfxr_read_pal1(int id, byte *resource, int size) { + int counter = 0; + int pos; + unsigned int colors[MAX_COLORS] = {0}; + + if (size < PALETTE_START + 4) { + GFXERROR("Palette resource too small in %04x\n", id); + return NULL; + } + + pos = PALETTE_START; + + while (pos < size/* && resource[pos] == COLOR_OK && counter < MAX_COLORS*/) { + int color = resource[pos] | (resource[pos + 1] << 8) | (resource[pos + 2] << 16) | (resource[pos + 3] << 24); + + pos += 4; + + colors[counter++] = color; + } + + if (counter < MAX_COLORS && resource[pos] != COLOR_OK) { + GFXERROR("Palette %04x uses unknown palette color prefix 0x%02x at offset 0x%04x\n", id, resource[pos], pos); + return NULL; + } + + if (counter < MAX_COLORS) { + GFXERROR("Palette %04x ends prematurely\n", id); + return NULL; + } + + Palette *retval = new Palette(counter); + char buf[100]; + sprintf(buf, "read_pal1 (id %d)", id); + retval->name = buf; + + for (pos = 0; pos < counter; pos++) { + unsigned int color = colors[pos]; + retval->setColor(pos, (color >> 8) & 0xff, (color >> 16) & 0xff, (color >> 24) & 0xff); + } + + return retval; +} + +Palette *gfxr_read_pal1_amiga(Common::File &file) { + int i; + Palette *retval = new Palette(32); + + for (i = 0; i < 32; i++) { + int b1, b2; + + b1 = file.readByte(); + b2 = file.readByte(); + + if (b1 == EOF || b2 == EOF) { + GFXERROR("Palette file ends prematurely\n"); + return NULL; + } + + retval->setColor(i, (b1 & 0xf) * 0x11, ((b2 & 0xf0) >> 4) * 0x11, (b2 & 0xf) * 0x11); + } + + return retval; +} + +} // End of namespace Sci |