From 88f3fc07603d132b12d366509e547e4367787700 Mon Sep 17 00:00:00 2001
From: Filippos Karapetis
Date: Tue, 27 Sep 2016 02:34:20 +0300
Subject: CHEWY: Implement initial sprite drawing, font loading and text
 drawing

---
 engines/chewy/resource.cpp | 63 ++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 61 insertions(+), 2 deletions(-)

(limited to 'engines/chewy/resource.cpp')

diff --git a/engines/chewy/resource.cpp b/engines/chewy/resource.cpp
index 13bd9d2e97..368f589cc1 100644
--- a/engines/chewy/resource.cpp
+++ b/engines/chewy/resource.cpp
@@ -21,9 +21,12 @@
  */
 
 #include "common/debug.h"
+#include "common/rect.h"
 #include "common/stream.h"
 #include "common/substream.h"
 #include "common/textconsole.h"
+#include "graphics/pixelformat.h"
+#include "graphics/surface.h"
 
 #include "chewy/chewy.h"
 #include "chewy/resource.h"
@@ -34,13 +37,11 @@ namespace Chewy {
 // ======================
 // back/episode1.gep
 // cut/blende.rnd
-// misc/*.taf, room/*.taf
 // misc/exit.eib
 // misc/inventar.iib
 // misc/inventar.sib
 // room/csp.int
 // room/test.rdi
-// txt/*.tff
 // txt/*.tap
 // txt/diah.adh
 // txt/inv_st.s and txt/room_st.s
@@ -323,4 +324,62 @@ Common::SeekableReadStream *VideoResource::getVideoStream(uint num) {
 	return new Common::SeekableSubReadStream(&_stream, chunk->pos, chunk->pos + chunk->size);
 }
 
+Font::Font(Common::String filename) {
+	const uint32 headerFont = MKTAG('T', 'F', 'F', '\0');
+	Common::File stream;
+
+	stream.open(filename);
+
+	uint32 header = stream.readUint32BE();
+
+	if (header != headerFont)
+		error("Invalid resource - %s", filename.c_str());
+
+	stream.skip(4);	// total memory
+	_count = stream.readUint16LE();
+	_first = stream.readUint16LE();
+	_last = stream.readUint16LE();
+	_width = stream.readUint16LE();
+	_height = stream.readUint16LE();
+
+	_fontSurface.create(_width * _count, _height, ::Graphics::PixelFormat::createFormatCLUT8());
+
+	byte cur;
+	int bitIndex = 7;
+	byte *p;
+
+	cur = stream.readByte();
+
+	for (uint n = 0; n < _count; n++) {
+		for (uint y = 0; y < _height; y++) {
+			for (uint x = n * _width; x < n * _width + _width; x++) {
+				p = (byte *)_fontSurface.getBasePtr(x, y);
+				*p = (cur & (1 << bitIndex)) ? 0 : 0xFF;
+
+				bitIndex--;
+				if (bitIndex < 0) {
+					bitIndex = 7;
+					cur = stream.readByte();
+				}
+			}
+		}
+	}
+}
+
+Font::~Font() {
+	_fontSurface.free();
+}
+
+::Graphics::Surface *Font::getLine(Common::String text) {
+	::Graphics::Surface *line = new ::Graphics::Surface();
+	line->create(text.size() * _width, _height, ::Graphics::PixelFormat::createFormatCLUT8());
+
+	for (uint i = 0; i < text.size(); i++) {
+		int c = text[i];
+		line->copyRectToSurface(_fontSurface, i * _width, 0, Common::Rect((c - _first) * _width, 0, (c - _first) * _width + _width, _height));
+	}
+
+	return line;
+}
+
 } // End of namespace Chewy
-- 
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