From: notaz <notasas@gmail.com>
Date: Sat, 17 Nov 2012 22:21:30 +0000 (+0200)
Subject: fonts: add uyvy function
X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=libpicofe.git;a=commitdiff_plain;h=3e1124f989febba80ef582c1200153ed176226f0

fonts: add uyvy function
---

diff --git a/fonts.c b/fonts.c
index cbad3c6..c1164b4 100644
--- a/fonts.c
+++ b/fonts.c
@@ -261,6 +261,46 @@ void basic_text_out16_nf(void *fb, int w, int x, int y, const char *text)
 	}
 }
 
+void basic_text_out_uyvy_nf(void *fb, int w, int x, int y, const char *text)
+{
+	int i, l;
+	unsigned short *screen;
+
+	screen = (unsigned short *)fb + x + y * w;
+	for (i = 0; ; i++, screen += 8)
+	{
+		char c = text[i];
+		if (c == 0)
+			break;
+		if (c == ' ')
+			continue;
+
+		for (l = 0; l < 8; l++)
+		{
+			unsigned char fd = fontdata8x8[c * 8 + l];
+			unsigned char *s = (void *)(screen + l * w);
+			unsigned char fd1, fdp = 0;
+
+			if (fd&0x80) s[0 * 2 + 1] = 235;
+			if (fd&0x40) s[1 * 2 + 1] = 235;
+			if (fd&0x20) s[2 * 2 + 1] = 235;
+			if (fd&0x10) s[3 * 2 + 1] = 235;
+			if (fd&0x08) s[4 * 2 + 1] = 235;
+			if (fd&0x04) s[5 * 2 + 1] = 235;
+			if (fd&0x02) s[6 * 2 + 1] = 235;
+			if (fd&0x01) s[7 * 2 + 1] = 235;
+
+			// draw "shadow"
+			if (l > 0)
+				fdp = fontdata8x8[c * 8 + l - 1];
+
+			for (fd1 = 0x80; fd1 != 0; fd1 >>= 1, s += 2)
+				if (!(fd & (fd1 >> 1)) && ((fdp | fd) & fd1))
+					s[1] /= 2;
+		}
+	}
+}
+
 void basic_text_out16(void *fb, int w, int x, int y, const char *texto, ...)
 {
 	va_list args;
diff --git a/fonts.h b/fonts.h
index b66993c..e565c93 100644
--- a/fonts.h
+++ b/fonts.h
@@ -4,3 +4,4 @@ extern unsigned char fontdata6x8[256-32][8];
 
 void basic_text_out16_nf(void *fb, int w, int x, int y, const char *text);
 void basic_text_out16(void *fb, int w, int x, int y, const char *texto, ...);
+void basic_text_out_uyvy_nf(void *fb, int w, int x, int y, const char *text);