Started moving some of the old GUI code inside /gui32

svn-id: r45185

1 files changed, 135 insertions, 0 deletions

diff --git a/engines/sci/gui32/res_pal.cpp b/engines/sci/gui32/res_pal.cpp
new file mode 100644
index 0000000000..d686220453
--- /dev/null
+++ b/engines/sci/gui32/res_pal.cpp
@@ -0,0 +1,135 @@
+/* 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/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 = (format == SCI_PAL_FORMAT_VARIABLE_FLAGS) ? 4 : 3;
+	byte *pal_data = resource + 37;
+	int _colors_nr = READ_LE_UINT16(resource + 29);
+
+	// Happens at the beginning of Pepper
+	if (_colors_nr > 256)
+		return NULL;
+
+	Palette *retval = new Palette(_colors_nr + start_color);
+	int i;
+
+	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:
+			if (pal_data[0] & 1)
+				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) {
+		error("Palette resource too small in %04x", id);
+		return NULL;
+	}
+
+	pos = PALETTE_START;
+
+	while (pos < size/* && resource[pos] == COLOR_OK && counter < MAX_COLORS*/) {
+		colors[counter++] = resource[pos] | (resource[pos + 1] << 8) | (resource[pos + 2] << 16) | (resource[pos + 3] << 24);
+		pos += 4;
+	}
+
+	if (counter < MAX_COLORS) {
+		error("SCI1 palette %04x ends prematurely", 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];
+		if (color & 1)
+			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) {
+			error("Amiga palette file ends prematurely");
+			return NULL;
+		}
+
+		retval->setColor(i, (b1 & 0xf) * 0x11, ((b2 & 0xf0) >> 4) * 0x11, (b2 & 0xf) * 0x11);
+	}
+
+	return retval;
+}
+
+} // End of namespace Sci