From 0ffa9e9484d42a67316dcf6ec4d930869db207be Mon Sep 17 00:00:00 2001
From: mibi88 <mibikart@gmail.com>
Date: Mon, 16 Jan 2023 19:41:49 +0100
Subject: [PATCH] Added ext/img.h

---
 microfx_src/Makefile                   |   2 +-
 microfx_src/include/microfx/ext/img.h  |  20 +++++++++++++++++
 microfx_src/src/img.c                  |  29 +++++++++++++++++++++++++
 template/lib/include/microfx/ext/img.h |  20 +++++++++++++++++
 template/lib/libMicrofx.a              | Bin 5232 -> 6140 bytes
 5 files changed, 70 insertions(+), 1 deletion(-)
 create mode 100644 microfx_src/include/microfx/ext/img.h
 create mode 100644 microfx_src/src/img.c
 create mode 100644 template/lib/include/microfx/ext/img.h

diff --git a/microfx_src/Makefile b/microfx_src/Makefile
index 94387ab..482b46c 100644
--- a/microfx_src/Makefile
+++ b/microfx_src/Makefile
@@ -4,7 +4,7 @@ AR = sh-elf-ar
 OUT = libMicrofx.a
 OUT_DIR = lib
 
-SRC = src/start.c src/syscall.S src/microfx.c
+SRC = src/start.c src/syscall.S src/microfx.c src/img.c
 OBJ = $(SRC:src/%=build/%.o)
 
 BUILD = build
diff --git a/microfx_src/include/microfx/ext/img.h b/microfx_src/include/microfx/ext/img.h
new file mode 100644
index 0000000..32be80d
--- /dev/null
+++ b/microfx_src/include/microfx/ext/img.h
@@ -0,0 +1,20 @@
+#ifndef IMG_H
+#define IMG_H
+
+enum {SNORMAL = 0, SINVERTED, STRANSP, SNOWHITE, SNOBLACK};
+
+/* void simage(int sx, int sy, int w, int h, unsigned char *img, int mode);
+
+Draws an image from a Sprite Coder string that is in img,
+where the top left corner is at (sx, sy).
+w is the width and h the height of the image.
+mode can be :
+SNORMAL : Draws the image normally.
+SINVERTED : Draws the image with inverted colors.
+STRANSP : Black is white and white is not drawn. Useful for
+transparency in sprites.
+*/
+
+void simage(int sx, int sy, int w, int h, unsigned char *img, int mode);
+
+#endif
diff --git a/microfx_src/src/img.c b/microfx_src/src/img.c
new file mode 100644
index 0000000..befb6f2
--- /dev/null
+++ b/microfx_src/src/img.c
@@ -0,0 +1,29 @@
+#include "../include/microfx/ext/img.h"
+#include <microfx/microfx.h>
+
+void simage(int sx, int sy, int w, int h, unsigned char *img, int mode) {
+	/* Draws an image from a sprite coder string */
+	int x, y, rpos, gpos, bpos, color;
+	for(y=0;y<h;y++){
+		for(x=0;x<w;x++){
+			rpos = y*(w+(w%2))+x;
+			gpos = rpos/8;
+			bpos = rpos%8;
+			color = (img[gpos] << bpos) & 0x80;
+			switch(mode){
+				case STRANSP:
+					if(color) spixel(sx+x, sy+y, SWHITE);
+					break;
+				case SNOWHITE:
+					if(color) spixel(sx+x, sy+y, SBLACK);
+					break;
+				case SNOBLACK:
+					if(!color) spixel(sx+x, sy+y, SWHITE);
+					break;
+				default: /* SNORMAL or SINVERTED */
+					spixel(sx+x, sy+y, mode ? !color : color);
+					break;
+			}
+		}
+	}
+}
diff --git a/template/lib/include/microfx/ext/img.h b/template/lib/include/microfx/ext/img.h
new file mode 100644
index 0000000..32be80d
--- /dev/null
+++ b/template/lib/include/microfx/ext/img.h
@@ -0,0 +1,20 @@
+#ifndef IMG_H
+#define IMG_H
+
+enum {SNORMAL = 0, SINVERTED, STRANSP, SNOWHITE, SNOBLACK};
+
+/* void simage(int sx, int sy, int w, int h, unsigned char *img, int mode);
+
+Draws an image from a Sprite Coder string that is in img,
+where the top left corner is at (sx, sy).
+w is the width and h the height of the image.
+mode can be :
+SNORMAL : Draws the image normally.
+SINVERTED : Draws the image with inverted colors.
+STRANSP : Black is white and white is not drawn. Useful for
+transparency in sprites.
+*/
+
+void simage(int sx, int sy, int w, int h, unsigned char *img, int mode);
+
+#endif
diff --git a/template/lib/libMicrofx.a b/template/lib/libMicrofx.a
index 0bea3d70d1e5a023d9a52ade767e1a37c436d350..c67cacc0327d4a3638489ec01bc97520ace375e3 100644
GIT binary patch
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