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engines/ultima/nuvie/fonts/wou_font.cpp

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+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "ultima/nuvie/core/nuvie_defs.h"
+#include "ultima/nuvie/conf/configuration.h"
+#include "ultima/nuvie/screen/screen.h"
+#include "ultima/nuvie/files/u6_lzw.h"
+#include "ultima/nuvie/files/u6_shape.h"
+#include "ultima/nuvie/fonts/wou_font.h"
+#include "ultima/nuvie/core/game.h"
+
+namespace Ultima {
+namespace Nuvie {
+
+WOUFont::WOUFont() : font_data(nullptr), char_buf(nullptr), height(0),
+		pixel_char(0) {
+}
+
+WOUFont::~WOUFont() {
+	if (font_data != nullptr)
+		free(font_data);
+
+	if (char_buf != nullptr)
+		free(char_buf);
+}
+
+bool WOUFont::init(const Common::Path &filename) {
+
+	U6Lzw lzw;
+	uint32 decomp_size;
+	font_data = lzw.decompress_file(filename, decomp_size);
+
+	height = font_data[0];
+	pixel_char = font_data[2];
+
+	num_chars = 256;
+	if (Game::get_game()->get_game_type() != NUVIE_GAME_U6) {
+		default_color = FONT_COLOR_WOU_NORMAL;
+		default_highlight_color = FONT_COLOR_WOU_HIGHLIGHT;
+	}
+	return initCharBuf();
+}
+
+bool WOUFont::initWithBuffer(unsigned char *buffer, uint32 buffer_len) {
+	font_data = buffer;
+
+	height = font_data[0];
+	pixel_char = font_data[2];
+
+	num_chars = 256;
+	if (Game::get_game()->get_game_type() != NUVIE_GAME_U6) {
+		default_color = FONT_COLOR_WOU_NORMAL;
+		default_highlight_color = FONT_COLOR_WOU_HIGHLIGHT;
+	}
+
+	return initCharBuf();
+}
+
+bool WOUFont::initCharBuf() {
+	uint8 max_width = 0;
+	for (uint16 i = 0; i < num_chars; i++) {
+		uint8 width = font_data[0x4 + i];
+		if (width > max_width) {
+			max_width = width;
+		}
+	}
+	char_buf = (unsigned char *)malloc(max_width * height);
+	if (char_buf == nullptr)
+		return false;
+
+	return true;
+}
+
+uint16 WOUFont::getCharWidth(uint8 c) {
+	if (font_data == nullptr)
+		return 0;
+
+	return font_data[0x4 + get_char_num(c)];
+}
+
+
+uint16 WOUFont::drawChar(Screen *screen, uint8 char_num, uint16 x, uint16 y,
+						 uint8 color) {
+	unsigned char *pixels;
+	uint16 width;
+
+	if (font_data == nullptr)
+		return false;
+
+	pixels = font_data + font_data[0x204 + char_num] * 256 + font_data[0x104 + char_num];
+	width = font_data[0x4 + char_num];
+
+	memset(char_buf, 0xff, width * height);
+
+	//pixels += y * pitch + x;
+	for (uint8 i = 0; i < (width * height); i++) {
+		if (pixels[i] == pixel_char)
+			char_buf[i] = color;
+	}
+
+	screen->blit(x, y, char_buf, 8, width, height, width, true, nullptr);
+	return width;
+}
+
+uint16 WOUFont::drawStringToShape(U6Shape *shp, const char *str, uint16 x, uint16 y, uint8 color) {
+	uint16 i;
+	uint16 string_len = strlen(str);
+
+	if (font_data == nullptr)
+		return x;
+
+	for (i = 0; i < string_len; i++) {
+		x += drawCharToShape(shp, get_char_num(str[i]), x, y, color);
+	}
+
+	return x;
+}
+
+uint8 WOUFont::drawCharToShape(U6Shape *shp, uint8 char_num, uint16 x, uint16 y,
+							   uint8 color) {
+	unsigned char *pixels;
+	uint16 i, j;
+	unsigned char *font;
+	uint16 pitch;
+	uint16 dst_w, dst_h;
+
+	pixels = shp->get_data();
+	shp->get_size(&dst_w, &dst_h);
+	pitch = dst_w;
+
+	pixels += y * pitch + x;
+
+	uint16 width;
+
+	font = font_data + font_data[0x204 + char_num] * 256 + font_data[0x104 + char_num];
+	width = font_data[0x4 + char_num];
+
+	for (i = 0; i < height; i++) {
+		for (j = 0; j < width; j++) {
+			if (font[j] == pixel_char) {
+				pixels[j] = color;
+			}
+		}
+
+		font += width;
+		pixels += pitch;
+	}
+
+	return width;
+}
+
+} // End of namespace Nuvie
+} // End of namespace Ultima