Merge branch 'master' of https://github.com/ClusterM/retroarch-clover

5 files changed, 989 insertions, 0 deletions

diff --git a/fbgrab-1.3/COPYING b/fbgrab-1.3/COPYING
new file mode 100644
index 0000000..a52b16e
--- /dev/null
+++ b/fbgrab-1.3/COPYING
@@ -0,0 +1,341 @@
+
+		    GNU GENERAL PUBLIC LICENSE
+		       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+                       59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+			    Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
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+These restrictions translate to certain responsibilities for you if you
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+
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+
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+  The precise terms and conditions for copying, distribution and
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+
+		    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
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+Activities other than copying, distribution and modification are not
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+
+These requirements apply to the modified work as a whole.  If
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+a storage or distribution medium does not bring the other work under
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+under Section 2) in object code or executable form under the terms of
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+
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+the Program or works based on it.
+
+  6. Each time you redistribute the Program (or any work based on the
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+license would not permit royalty-free redistribution of the Program by
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+
+It is not the purpose of this section to induce you to infringe any
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+
+This section is intended to make thoroughly clear what is believed to
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+
+  8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
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+
+  9. The Free Software Foundation may publish revised and/or new versions
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+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation.  If the Program does not specify a version number of
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+Foundation.
+
+  10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
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+make exceptions for this.  Our decision will be guided by the two goals
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+of promoting the sharing and reuse of software generally.
+
+			    NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
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+REPAIR OR CORRECTION.
+
+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
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+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+		     END OF TERMS AND CONDITIONS
+
+	    How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) 19yy  <name of author>
+
+    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 2 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, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) 19yy name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Library General
+Public License instead of this License.
diff --git a/fbgrab-1.3/INSTALL b/fbgrab-1.3/INSTALL
new file mode 100644
index 0000000..ca2b841
--- /dev/null
+++ b/fbgrab-1.3/INSTALL
@@ -0,0 +1,20 @@
+
+requirements to build:
+you need these on your system:
+libpng 
+libz   
+
+to build:
+run 
+make
+
+to install 
+run 
+make install
+
+Troubleshooting
+If you don't realize how to install splint, remove that row from the Makefile.
+You propably have the libs already installed but if not try to get the from your
+distribution and secondly from:
+zlib : http://www.gzip.org/zlib/ 
+libpng : http://www.libpng.org/   
diff --git a/fbgrab-1.3/Makefile b/fbgrab-1.3/Makefile
new file mode 100644
index 0000000..4b90ac3
--- /dev/null
+++ b/fbgrab-1.3/Makefile
@@ -0,0 +1,19 @@
+### 
+### I think it's not worth to make such a small project
+### modular. So this is a simple gnu Makefile...
+###
+
+NES_ROOT = /home/cluster/nesmini
+LIBPNG = ../../libpng.arm
+ZLIB = ../../zlib
+
+CFLAGS-NES += -L$(NES_ROOT)/lib -L$(NES_ROOT)/usr/lib -I$(LIBPNG) -I$(ZLIB) -Wno-unused-function -Wl,--dynamic-linker=/lib/ld-linux-armhf.so.3,-sysroot=$(NES_ROOT),-rpath,-nostartfiles
+CC-NES = arm-linux-gnueabihf-gcc
+
+all: fbgrab
+
+fbgrab: fbgrab.c
+	$(CC-NES) -g -Wall $(CFLAGS-NES) $(LDFLAGS-NES) $< -lpng -lz -o fbgrab
+
+clean:
+	-$(RM) fbgrab *~ \#*\#
diff --git a/fbgrab-1.3/fbgrab.c b/fbgrab-1.3/fbgrab.c
new file mode 100644
index 0000000..5e4dd89
--- /dev/null
+++ b/fbgrab-1.3/fbgrab.c
@@ -0,0 +1,598 @@
+/*
+ * fbgrab - takes screenshots using the framebuffer.
+ *
+ * (C) Gunnar Monell <gmo@linux.nu> 2002
+ *
+ * This program is free Software, see the COPYING file
+ * and is based on Stephan Beyer's <fbshot@s-beyer.de> FBShot
+ * (C) 2000.
+ *
+ * For features and differences, read the manual page. 
+ *
+ * This program has been checked with "splint +posixlib" without
+ * warnings. Splint is available from http://www.splint.org/ .
+ * Patches and enhancements of fbgrab have to fulfill this too.
+ */
+ 
+/*
+ * clover mod by Cluster
+ * it automatically crops image and ignores transparent pixels
+ * http//clusterrr.com clusterrr@clusterrr.com
+ * (C) 2017
+ */
+
+
+#include <stdio.h>  
+#include <stdlib.h> 
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <string.h>
+#include <getopt.h>
+#include <sys/vt.h>   /* to handle vt changing */
+#include <png.h>      /* PNG lib */
+#include <zlib.h>
+#include <linux/fb.h> /* to handle framebuffer ioctls */
+
+#define	VERSION	"1.2"
+#define	DEFAULT_FB	"/dev/fb0"
+#define MAX_LEN 512
+#define UNDEFINED -1
+
+static int srcBlue = 0;
+static int srcGreen = 1;
+static int srcRed = 2;
+static int srcAlpha = 3;
+
+static const int Blue = 0;
+static const int Green = 1;
+static const int Red = 2;
+static const int Alpha = 3;
+
+/*@noreturn@*/ static void fatal_error(char *message)
+{
+    fprintf(stderr, "%s\n", message);
+    exit(EXIT_FAILURE);
+}
+
+static void usage(char *binary)
+{
+    fprintf(stderr, "Usage:   %s\t[-hi] [-{C|c} vt] [-d dev] [-s n] [-z n]\n"
+	   "\t\t[-f fromfile -w n -h n -b n] filename.png\n", binary);
+}
+
+static void help(char *binary)
+{
+    fprintf(stderr, "fbgrab - takes screenshots using the framebuffer, v%s\n", VERSION);
+    fprintf(stderr, "clover mod\n");
+     
+    usage(binary);
+    
+    fprintf(stderr, "\nPossible options:\n");
+/* please keep this list alphabetical */
+    fprintf(stderr, "\t-b n  \tforce use of n bits/pixel, required when reading from file\n");
+    fprintf(stderr, "\t-C n  \tgrab from console n, for slower framebuffers\n");
+    fprintf(stderr, "\t-c n  \tgrab from console n\n");
+    fprintf(stderr, "\t-d dev\tuse framebuffer device dev instead of default\n");
+    fprintf(stderr, "\t-f file\t read from file instead of framebuffer\n");
+    fprintf(stderr, "\t-h n  \tset height to n pixels, required when reading from file\n"
+	   "\t\tcan be used to force height when reading from framebuffer\n");
+    fprintf(stderr, "\t-i    \tturns on interlacing in PNG\n");
+    fprintf(stderr, "\t-s n  \tsleep n seconds before making screenshot\n");
+    fprintf(stderr, "\t-v    \tverbose, print debug information.\n");
+    fprintf(stderr, "\t-w n  \tset width to n pixels, required when reading from file\n"
+	   "\t\tcan be used to force width when reading from framebuffer\n");
+    fprintf(stderr, "\t-z n  \tPNG compression level: 0 (fast) .. 9 (best)\n");
+    fprintf(stderr, "\t-?    \tprint this usage information\n");
+}
+
+
+static void chvt(int num)
+{
+    int fd;
+    
+    if(-1 == (fd = open("/dev/console", O_RDWR)))
+	fatal_error("Cannot open /dev/console");
+    
+    if (ioctl(fd, VT_ACTIVATE, num) != 0)
+	fatal_error("ioctl VT_ACTIVATE");
+    
+    if (ioctl(fd, VT_WAITACTIVE, num) != 0)
+	fatal_error("ioctl VT_WAITACTIVE");
+    
+    (void) close(fd);
+}
+
+static unsigned short int change_to_vt(unsigned short int vt_num)
+{
+    int fd;
+    unsigned short int old_vt;
+    struct vt_stat vt_info;
+    
+    memset(&vt_info, 0, sizeof(struct vt_stat));
+
+    if(-1 == (fd=open("/dev/console", O_RDONLY)))
+	fatal_error("Couldn't open /dev/console");
+
+    if (ioctl(fd, VT_GETSTATE,  &vt_info) != 0)
+	fatal_error("ioctl VT_GETSTATE");
+
+    (void) close (fd);
+
+    old_vt = vt_info.v_active;
+
+    chvt((int) vt_num); /* go there for information */
+
+    return old_vt;
+}
+
+static void get_framebufferdata(char *device, struct fb_var_screeninfo *fb_varinfo_p, int verbose)
+{
+    int fd;
+    struct fb_fix_screeninfo fb_fixedinfo;
+    
+    /* now open framebuffer device */
+    if(-1 == (fd=open(device, O_RDONLY)))
+    {
+	fprintf(stderr, "Error: Couldn't open %s.\n", device);
+	exit(EXIT_FAILURE);
+    }
+
+    if (ioctl(fd, FBIOGET_VSCREENINFO, fb_varinfo_p) != 0)
+	fatal_error("ioctl FBIOGET_VSCREENINFO");
+
+    if (ioctl(fd, FBIOGET_FSCREENINFO, &fb_fixedinfo) != 0)
+	fatal_error("ioctl FBIOGET_FSCREENINFO");
+
+    if (verbose)
+    {
+        fprintf(stderr, "frame buffer fixed info:\n");
+        fprintf(stderr, "id: \"%s\"\n", fb_fixedinfo.id);
+    	switch (fb_fixedinfo.type) 
+    	{
+    	case FB_TYPE_PACKED_PIXELS:
+		fprintf(stderr, "type: packed pixels\n");
+		break;
+    	case FB_TYPE_PLANES:
+		fprintf(stderr, "type: non interleaved planes\n");
+		break;
+    	case FB_TYPE_INTERLEAVED_PLANES:
+		fprintf(stderr, "type: interleaved planes\n");
+		break;
+    	case FB_TYPE_TEXT:
+		fprintf(stderr, "type: text/attributes\n");
+		break;	
+    	case FB_TYPE_VGA_PLANES:
+		fprintf(stderr, "type: EGA/VGA planes\n");
+		break;
+    	default:
+		fprintf(stderr, "type: undefined!\n");
+		break;
+    	}
+        fprintf(stderr, "line length: %i bytes (%i pixels)\n", fb_fixedinfo.line_length, fb_fixedinfo.line_length/(fb_varinfo_p->bits_per_pixel/8));
+    
+        fprintf(stderr, "\nframe buffer variable info:\n");
+        fprintf(stderr, "resolution: %ix%i\n", fb_varinfo_p->xres, fb_varinfo_p->yres);
+        fprintf(stderr, "virtual resolution: %ix%i\n", fb_varinfo_p->xres_virtual, fb_varinfo_p->yres_virtual);
+        fprintf(stderr, "offset: %ix%i\n", fb_varinfo_p->xoffset, fb_varinfo_p->yoffset);
+        fprintf(stderr, "bits_per_pixel: %i\n", fb_varinfo_p->bits_per_pixel);
+        fprintf(stderr, "grayscale: %s\n", fb_varinfo_p->grayscale ? "true" : "false");
+        fprintf(stderr, "red:   offset: %i, length: %i, msb_right: %i\n", fb_varinfo_p->red.offset, fb_varinfo_p->red.length, fb_varinfo_p->red.msb_right);
+        fprintf(stderr, "blue:  offset: %i, length: %i, msb_right: %i\n", fb_varinfo_p->blue.offset, fb_varinfo_p->green.length, fb_varinfo_p->green.msb_right);
+        fprintf(stderr, "green: offset: %i, length: %i, msb_right: %i\n", fb_varinfo_p->green.offset, fb_varinfo_p->blue.length, fb_varinfo_p->blue.msb_right);
+        fprintf(stderr, "alpha: offset: %i, length: %i, msb_right: %i\n", fb_varinfo_p->transp.offset, fb_varinfo_p->transp.length, fb_varinfo_p->transp.msb_right);
+        fprintf(stderr, "pixel format: %s\n", fb_varinfo_p->nonstd == 0 ? "standard" : "non-standard");
+    }
+    srcBlue = fb_varinfo_p->blue.offset >> 3;
+    srcGreen = fb_varinfo_p->green.offset >> 3;
+    srcRed = fb_varinfo_p->red.offset >> 3;
+
+    if (fb_varinfo_p->transp.length > 0) {
+	srcAlpha = fb_varinfo_p->transp.offset >> 3;
+    } else {
+	srcAlpha = -1; // not used
+    }
+
+    (void) close(fd);
+}
+
+static void read_framebuffer(char *device, size_t bytes, unsigned char *buf_p, int skip_bytes)
+{
+    int fd; 
+
+    if(-1 == (fd=open(device, O_RDONLY)))
+    {
+	fprintf(stderr, "Error: Couldn't open %s.\n", device);
+	exit(EXIT_FAILURE);
+    }
+
+    if (skip_bytes) {
+        lseek(fd, skip_bytes, SEEK_SET);
+    }
+
+    if (buf_p == NULL || read(fd, buf_p, bytes) != (ssize_t) bytes) 
+	fatal_error("Error: Not enough memory or data\n");
+}
+
+static void convert1555to32(int width, int height, 
+			    unsigned char *inbuffer, 
+			    unsigned char *outbuffer)
+{
+    unsigned int i;
+
+    for (i=0; i < (unsigned int) height*width*2; i+=2)
+    {
+	/* BLUE  = 0 */
+	outbuffer[(i<<1)+Blue] = (inbuffer[i+1] & 0x7C) << 1;
+	/* GREEN = 1 */
+        outbuffer[(i<<1)+Green] = (((inbuffer[i+1] & 0x3) << 3) | 
+			     ((inbuffer[i] & 0xE0) >> 5)) << 3;
+	/* RED   = 2 */
+	outbuffer[(i<<1)+Red] = (inbuffer[i] & 0x1f) << 3;
+	/* ALPHA = 3 */
+	outbuffer[(i<<1)+Alpha] = '\0'; 
+    }
+}
+
+static void convert565to32(int width, int height, 
+			   unsigned char *inbuffer, 
+			   unsigned char *outbuffer)
+{
+    unsigned int i;
+
+    for (i=0; i < (unsigned int) height*width*2; i+=2)
+    {
+	/* BLUE  = 0 */
+	outbuffer[(i<<1)+Blue] = (inbuffer[i] & 0x1f) << 3;
+	/* GREEN = 1 */
+        outbuffer[(i<<1)+Green] = (((inbuffer[i+1] & 0x7) << 3) | 
+			     (inbuffer[i] & 0xE0) >> 5) << 2;	
+        /* RED   = 2 */
+	outbuffer[(i<<1)+Red] = (inbuffer[i+1] & 0xF8);
+	/* ALPHA = 3 */
+	outbuffer[(i<<1)+Alpha] = '\0'; 
+    }
+}
+
+static void convert888to32(int width, int height, 
+			   unsigned char *inbuffer, 
+			   unsigned char *outbuffer)
+{
+    unsigned int i;
+
+    for (i=0; i < (unsigned int) height*width; i++)
+    {
+	/* BLUE  = 0 */
+	outbuffer[(i<<2)+Blue] = inbuffer[i*3+srcBlue];
+	/* GREEN = 1 */
+        outbuffer[(i<<2)+Green] = inbuffer[i*3+srcGreen];
+	/* RED   = 2 */
+        outbuffer[(i<<2)+Red] = inbuffer[i*3+srcRed];
+	/* ALPHA */
+        outbuffer[(i<<2)+Alpha] = '\0';
+    }
+}
+
+static void convert8888to32(int width, int height, 
+			   unsigned char *inbuffer, 
+			   unsigned char *outbuffer)
+{
+    unsigned int i;
+
+    for (i=0; i < (unsigned int) height*width; i++)
+    {
+	/* BLUE  = 0 */
+	outbuffer[(i<<2)+Blue] = inbuffer[i*4+srcBlue];
+	/* GREEN = 1 */
+        outbuffer[(i<<2)+Green] = inbuffer[i*4+srcGreen];
+	/* RED   = 2 */
+        outbuffer[(i<<2)+Red] = inbuffer[i*4+srcRed];
+	/* ALPHA */
+        outbuffer[(i<<2)+Alpha] = /*srcAlpha >= 0 ? inbuffer[i*4+srcAlpha] :*/ 0;
+    }
+}
+
+static void convert8888to32_crop(int width, int height, int* outWidth, int* outHeight,
+			   unsigned char *inbuffer,
+			   unsigned char *outbuffer)
+{
+    unsigned int i;
+    int minX = -1;
+    int maxX = -1;
+    int minY = -1;
+    int maxY = -1;
+    int pixels = 0;
+    
+    for (i=0; i < (unsigned int) height*width; i++)
+    {
+	int x = i%width;
+	int y = i/width;
+	unsigned char a = inbuffer[i*4+srcAlpha];
+	if (minX < 0 && minY < 0 && a)
+	{
+	    minX = x;
+	    minY = y;
+	}
+	if (x > 0 && minX >= 0 && maxX < 0 && !a)
+	    maxX = x-1;
+	if (x >= minX && x <= maxX && y > 0 && minY >= 0 && maxY < 0 && !a)
+	    maxY = y-1;
+	if ((minX >= 0 && x >= minX) && (maxX < 0 || x <= maxX) && (minY >= 0 && y >= minY) && (maxY < 0 || y <= maxY))
+	{
+	    /* BLUE  = 0 */
+	    outbuffer[(pixels<<2)+Blue] = inbuffer[i*4+srcBlue];
+	    /* GREEN = 1 */
+	    outbuffer[(pixels<<2)+Green] = inbuffer[i*4+srcGreen];
+	    /* RED   = 2 */
+	    outbuffer[(pixels<<2)+Red] = inbuffer[i*4+srcRed];
+	    /* ALPHA */
+	    outbuffer[(pixels<<2)+Alpha] = /*srcAlpha >= 0 ? inbuffer[i*4+srcAlpha] :*/ 0;
+	    pixels++;
+	}
+    }
+
+    if (minX < 0) minX = 0;
+    if (minY < 0) minY = 0;
+    if (maxX < 0) maxX = width-1;
+    if (maxY < 0) maxY = height-1;
+    *outWidth = maxX - minX + 1;
+    *outHeight = maxY - minY + 1;
+    fprintf(stderr, "minx=%d maxx=%d miny=%d maxy=%d\n", minX, maxX, minY, maxY);
+    fprintf(stderr, "width=%d height=%d\n", *outWidth, *outHeight);
+}
+
+static void write_PNG(unsigned char *outbuffer, char *filename, 
+				int width, int height, int interlace, int compression)
+{
+    int i;
+    int bit_depth=0, color_type;
+    png_bytep row_pointers[height];
+    png_structp png_ptr;
+    png_infop info_ptr;
+    FILE *outfile;
+
+    if (strcmp(filename, "-") == 0)
+        outfile = stdout;
+    else {
+        outfile = fopen(filename, "wb");
+        if (!outfile)
+        {
+            fprintf(stderr, "Error: Couldn't fopen %s.\n", filename);
+            exit(EXIT_FAILURE);
+        }
+    }
+
+    for (i=0; i<height; i++)
+	row_pointers[i] = outbuffer + i * 4 * width;
+    
+    
+    png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, 
+	(png_voidp) NULL, (png_error_ptr) NULL, (png_error_ptr) NULL);
+    
+    if (!png_ptr)
+	fatal_error("Error: Couldn't create PNG write struct.");
+    
+    info_ptr = png_create_info_struct(png_ptr);
+    if (!info_ptr)
+    {
+	png_destroy_write_struct(&png_ptr, (png_infopp) NULL);
+	fatal_error("Error: Couldn't create PNG info struct.");
+    }
+    
+    png_init_io(png_ptr, outfile);
+    
+    png_set_compression_level(png_ptr, Z_BEST_COMPRESSION);
+    
+    bit_depth = 8;
+    color_type = PNG_COLOR_TYPE_RGB_ALPHA;
+    png_set_invert_alpha(png_ptr);
+    png_set_bgr(png_ptr);
+
+    png_set_IHDR(png_ptr, info_ptr, width, height, 
+		 bit_depth, color_type, interlace, 
+		 PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
+    
+    png_write_info(png_ptr, info_ptr);
+    
+    fprintf(stderr, "Now writing PNG file (compression %d)\n", compression);
+    
+    png_write_image(png_ptr, row_pointers);
+    
+    png_write_end(png_ptr, info_ptr);
+    /* puh, done, now freeing memory... */
+    png_destroy_write_struct(&png_ptr, &info_ptr);
+    
+    if (outfile != NULL)
+	(void) fclose(outfile);
+    /*@i2@*/ } /* tell splint to ignore false warning for not 
+		  released memory of png_ptr and info_ptr */
+
+static void convert_and_write(unsigned char *inbuffer, char *filename, 
+				int width, int height, int bits, int interlace, int compression)
+{
+    size_t bufsize = (size_t) width * height * 4;
+
+    unsigned char *outbuffer = malloc(bufsize);
+
+    if (outbuffer == NULL)
+	fatal_error("Not enough memory");
+    
+    memset(outbuffer, 0, bufsize);
+
+    fprintf(stderr, "Converting image from %i\n", bits);
+    
+    int outWidth = 0;
+    int outHeight = 0;
+
+    switch(bits) 
+    {
+    case 15:
+	convert1555to32(width, height, inbuffer, outbuffer);
+	write_PNG(outbuffer, filename, width, height, interlace, compression);
+	break;
+    case 16:
+	convert565to32(width, height, inbuffer, outbuffer);
+	write_PNG(outbuffer, filename, width, height, interlace, compression);
+	break;
+    case 24:
+	convert888to32(width, height, inbuffer, outbuffer);
+	write_PNG(outbuffer, filename, width, height, interlace, compression);
+	break;
+    case 32:
+//	convert8888to32(width, height, inbuffer, outbuffer);
+	convert8888to32_crop(width, height, &outWidth, &outHeight, inbuffer, outbuffer);
+	write_PNG(outbuffer, filename, outWidth, outHeight, interlace, compression);
+	break;
+    default:
+	fprintf(stderr, "%d bits per pixel are not supported! ", bits);
+	exit(EXIT_FAILURE);
+    }
+        
+    (void) free(outbuffer);
+}
+
+
+/********
+ * MAIN *
+ ********/
+
+int main(int argc, char **argv)
+{
+    unsigned char *buf_p;
+    char *device = NULL;
+    char *outfile = argv[argc-1];
+    int optc;
+    int vt_num=UNDEFINED, bitdepth=UNDEFINED, height=UNDEFINED, width=UNDEFINED;
+    int old_vt=UNDEFINED;
+    size_t buf_size;
+    char infile[MAX_LEN];
+    struct fb_var_screeninfo fb_varinfo;
+    int waitbfg=0; /* wait before grabbing (for -C )... */
+    int interlace = PNG_INTERLACE_NONE;
+    int verbose = 0;
+    int png_compression = Z_DEFAULT_COMPRESSION;
+    int skip_bytes = 0;
+
+    memset(infile, 0, MAX_LEN);
+    memset(&fb_varinfo, 0, sizeof(struct fb_var_screeninfo));
+
+
+    for(;;)
+    {
+	optc=getopt(argc, argv, "f:z:w:b:h:iC:c:d:s:?v");
+	if (optc==-1)
+	    break;
+	switch (optc) 
+	{
+/* please keep this list alphabetical */ 
+	case 'b':
+	    bitdepth = atoi(optarg);
+	    break;
+	case 'C':
+	    waitbfg = 1;
+	    /*@fallthrough@*/
+	case 'c':
+	    vt_num = atoi(optarg);
+	    break;
+	case 'd':
+	    device = optarg;
+	    break;
+	case 'f':
+	    strncpy(infile, optarg, MAX_LEN);
+	    break;
+	case 'h':
+	    height = atoi(optarg);
+	    break;
+	case '?':
+	    help(argv[0]);
+	    return 1;
+	case 'i':
+	    interlace = PNG_INTERLACE_ADAM7;
+	    break;
+	case 'v':
+	    verbose = 1;
+	    break;
+	case 's':
+	    (void) sleep((unsigned int) atoi(optarg));
+	    break;
+	case 'w':
+	    width = atoi(optarg);
+	    break;    
+	case 'z':
+	    png_compression = atoi(optarg);
+	    break;
+	default:
+	    usage(argv[0]);
+	}
+    }
+    
+    if ((optind==argc) || (1!=argc-optind))
+    {
+	usage(argv[0]);
+	return 1;
+    }
+
+    if (UNDEFINED != vt_num)
+    {
+	old_vt = (int) change_to_vt((unsigned short int) vt_num);
+	if (waitbfg != 0) (void) sleep(3);
+    }
+    
+    if (strlen(infile) > 0)
+    {
+	if (UNDEFINED == bitdepth || UNDEFINED == width || UNDEFINED == height)
+	{
+	    fprintf(stderr, "Width, height and bitdepth are mandatory when reading from file\n");
+	    exit(EXIT_FAILURE);
+	}
+    }
+    else
+    {
+	if (NULL == device)
+	{
+	    device = getenv("FRAMEBUFFER");
+	    if (NULL == device)
+	    {
+		device = DEFAULT_FB;
+	    }
+	}
+
+	get_framebufferdata(device, &fb_varinfo, verbose);
+	
+	if (UNDEFINED == bitdepth)
+	    bitdepth = (int) fb_varinfo.bits_per_pixel;
+	
+	if (UNDEFINED == width)
+	    width = (int) fb_varinfo.xres;
+	
+	if (UNDEFINED == height)
+	    height = (int) fb_varinfo.yres;
+
+	skip_bytes =  (fb_varinfo.yoffset * fb_varinfo.xres) * (fb_varinfo.bits_per_pixel >> 3);
+
+	fprintf(stderr, "Resolution: %ix%i depth %i\n", width, height, bitdepth);
+
+	strncpy(infile, device, MAX_LEN - 1);
+    }
+    
+    buf_size = width * height * (((unsigned int) bitdepth + 7) >> 3);
+
+    buf_p = malloc(buf_size);
+    
+    if(buf_p == NULL)
+	fatal_error("Not enough memory");
+
+    memset(buf_p, 0, buf_size);
+
+    read_framebuffer(infile, buf_size, buf_p, skip_bytes);
+
+    if (UNDEFINED != old_vt)
+	(void) change_to_vt((unsigned short int) old_vt);
+
+    convert_and_write(buf_p, outfile, width, height, bitdepth, interlace, png_compression);
+   
+    (void) free(buf_p);
+
+    return 0;
+}
+
diff --git a/makemod.sh b/makemod.sh
new file mode 100755
index 0000000..22724ba
--- /dev/null
+++ b/makemod.sh
@@ -0,0 +1,11 @@
+#!/bin/sh
+moddir=retroarch.hmod
+modname=retroarch.hmod
+outdir=output
+[ -z "$1" ] || outdir=$1
+cd "$moddir"
+rm -f "$modname"
+tar -czvf "$modname" *
+mkdir -p "../$outdir"
+rm -f "../$outdir/$modname"
+mv "$modname" "../$outdir/$modname"