From c8a0464c520d7dac3f2f7294b52526ce41a8febd Mon Sep 17 00:00:00 2001
From: Yourtion <yourtion@gmail.com>
Date: Fri, 13 May 2016 10:45:55 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0=E6=9B=B4=E5=A4=9A=E7=9A=84?=
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---
 25_day/Makefile | 10 +++++++++-
 25_day/color2.c | 42 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 51 insertions(+), 1 deletion(-)
 create mode 100644 25_day/color2.c

diff --git a/25_day/Makefile b/25_day/Makefile
index 719005f..a53ff0f 100644
--- a/25_day/Makefile
+++ b/25_day/Makefile
@@ -176,10 +176,17 @@ color.bim : color.obj a_nask.obj Makefile
 color.hrb : color.bim Makefile
 	$(BIM2HRB) color.bim color.hrb 56k
 
+color2.bim : color2.obj a_nask.obj Makefile
+	$(OBJ2BIM) @$(RULEFILE) out:color2.bim stack:1k map:color2.map \
+		color2.obj a_nask.obj
+
+color2.hrb : color2.bim Makefile
+	$(BIM2HRB) color2.bim color2.hrb 56k
+
 haribote.img : ipl10.bin haribote.sys Makefile \
 		hello.hrb hello2.hrb a.hrb hello3.hrb hello4.hrb hello5.hrb \
 		winhelo.hrb winhelo2.hrb winhelo3.hrb star1.hrb stars.hrb stars2.hrb \
-		lines.hrb walk.hrb noodle.hrb beepdown.hrb beepup.hrb color.hrb
+		lines.hrb walk.hrb noodle.hrb beepdown.hrb beepup.hrb color.hrb color2.hrb
 	$(EDIMG)   imgin:../z_tools/fdimg0at.tek \
 		wbinimg src:ipl10.bin len:512 from:0 to:0 \
 		copy from:haribote.sys to:@: \
@@ -203,6 +210,7 @@ haribote.img : ipl10.bin haribote.sys Makefile \
 		copy from:beepdown.hrb to:@: \
 		copy from:beepup.hrb to:@: \
 		copy from:color.hrb to:@: \
+		copy from:color2.hrb to:@: \
 		imgout:haribote.img
 
 # 其他指令
diff --git a/25_day/color2.c b/25_day/color2.c
new file mode 100644
index 0000000..c063768
--- /dev/null
+++ b/25_day/color2.c
@@ -0,0 +1,42 @@
+int api_openwin(char *buf, int xsiz, int ysiz, int col_inv, char *title);
+void api_initmalloc(void);
+char *api_malloc(int size);
+void api_refreshwin(int win, int x0, int y0, int x1, int y1);
+void api_linewin(int win, int x0, int y0, int x1, int y1, int col);
+int api_getkey(int mode);
+void api_end(void);
+
+unsigned char rgb2pal(int r, int g, int b, int x, int y);
+
+void HariMain(void)
+{
+	char *buf;
+	int win, x, y;
+	api_initmalloc();
+	buf = api_malloc(144 * 164);
+	win = api_openwin(buf, 144, 164, -1, "color2");
+	for (y = 0; y < 128; y++) {
+		for (x = 0; x < 128; x++) {
+			buf[(x + 8) + (y + 28) * 144] = rgb2pal(x * 2, y * 2, 0, x, y);
+		}
+	}
+	api_refreshwin(win, 8, 28, 136, 156);
+	api_getkey(1); /*等待按下任意键*/
+	api_end();
+}
+
+unsigned char rgb2pal(int r, int g, int b, int x, int y)
+{
+	static int table[4] = { 3, 1, 0, 2 };
+	int i;
+	x &= 1; /*判断是偶数还是奇数*/
+	y &= 1;
+	i = table[x + y * 2]; /*用来生成中间色的常量*/
+	r = (r * 21) / 256; /* r为0～20*/
+	g = (g * 21) / 256;
+	b = (b * 21) / 256;
+	r = (r + i) / 4; /* r为0～5*/
+	g = (g + i) / 4;
+	b = (b + i) / 4;
+	return 16 + r + g * 6 + b * 36;
+}