Add an NX/TIFF screenshot from Petteri Aimonen (Patch 0014)

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5690 42af7a65-404d-4744-a932-0658087f49c3

6 files changed, 395 insertions, 2 deletions

diff --git a/apps/graphics/Kconfig b/apps/graphics/Kconfig
index 09d3b5491..a10650e27 100644
--- a/apps/graphics/Kconfig
+++ b/apps/graphics/Kconfig
@@ -4,10 +4,15 @@
 #
 
 config TIFF
-	bool "TIFF file generation utility"
+	bool "TIFF file generation library"
 	default n
 	---help---
 		Enable support for the TIFF file generation program.
 
 if TIFF
+
+menu "TIFF Screenshot Utility"
+source "$APPSDIR/graphics/screenshot/Kconfig"
+endmenu
+
 endif
diff --git a/apps/graphics/Make.defs b/apps/graphics/Make.defs
index 96153a6b5..8f940cbad 100644
--- a/apps/graphics/Make.defs
+++ b/apps/graphics/Make.defs
@@ -38,3 +38,6 @@ ifeq ($(CONFIG_TIFF),y)
 CONFIGURED_APPS += graphics/tiff
 endif
 
+ifeq ($(CONFIG_GRAPHICS_SCREENSHOT),y)
+CONFIGURED_APPS += graphics/screenshot
+endif
diff --git a/apps/graphics/Makefile b/apps/graphics/Makefile
index a5d67b676..20f54c517 100644
--- a/apps/graphics/Makefile
+++ b/apps/graphics/Makefile
@@ -37,7 +37,7 @@
 
 # Sub-directories
 
-SUBDIRS = tiff
+SUBDIRS = tiff screenshot
 
 # Sub-directories that might need context setup
 
diff --git a/apps/graphics/screenshot/Kconfig b/apps/graphics/screenshot/Kconfig
new file mode 100644
index 000000000..48cd367a6
--- /dev/null
+++ b/apps/graphics/screenshot/Kconfig
@@ -0,0 +1,34 @@
+#
+# For a description of the syntax of this configuration file,
+# see misc/tools/kconfig-language.txt.
+#
+
+config GRAPHICS_SCREENSHOT
+	bool "TIFF screenshot utility"
+	default n
+	depends on TIFF && NX
+	---help---
+		Generate a NX screenshot utility based on the TIFF library.
+
+if GRAPHICS_SCREENSHOT
+
+config SCREENSHOT_WIDTH
+	int "Screenshot width (in pixels)"
+	default 320
+	---help---
+		The width of the screenshot in pixels/columns.
+
+config SCREENSHOT_HEIGHT
+	int "Screenshot height (in lines)"
+	default 240
+	---help---
+		The height of the screenshot in pixels/rows.
+
+config SCREENSHOT_FORMAT
+	int "Screenshot color format"
+	default 9
+	---help---
+		See inlcude/nuttx/fb.h for a list of color formats.  The default
+		value of 9 corresponds to FB_FMT_RGB16_565
+
+endif
diff --git a/apps/graphics/screenshot/Makefile b/apps/graphics/screenshot/Makefile
new file mode 100644
index 000000000..04bc48d05
--- /dev/null
+++ b/apps/graphics/screenshot/Makefile
@@ -0,0 +1,113 @@
+############################################################################
+# apps/examples/screenshot/Makefile
+#
+#   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+-include $(TOPDIR)/.config
+-include $(TOPDIR)/Make.defs
+include $(APPDIR)/Make.defs
+
+ifeq ($(WINTOOL),y)
+INCDIROPT = -w
+endif
+
+# TIFF Screenshot utility
+
+ASRCS =
+CSRCS = screenshot_main.c
+
+AOBJS = $(ASRCS:.S=$(OBJEXT))
+COBJS = $(CSRCS:.c=$(OBJEXT))
+
+SRCS = $(ASRCS) $(CSRCS)
+OBJS = $(AOBJS) $(COBJS)
+
+ifeq ($(CONFIG_WINDOWS_NATIVE),y)
+  BIN = ..\..\libapps$(LIBEXT)
+else
+ifeq ($(WINTOOL),y)
+  BIN = ..\\..\\libapps$(LIBEXT)
+else
+  BIN = ../../libapps$(LIBEXT)
+endif
+endif
+
+ROOTDEPPATH = --dep-path .
+
+# TIFF screen built-in application info
+
+APPNAME = screenshot
+PRIORITY = SCHED_PRIORITY_DEFAULT
+STACKSIZE = 4096
+
+# Common build
+
+VPATH = 
+
+all: .built
+.PHONY: clean depend distclean
+
+$(AOBJS): %$(OBJEXT): %.S
+	$(call ASSEMBLE, $<, $@)
+
+$(COBJS): %$(OBJEXT): %.c
+	$(call COMPILE, $<, $@)
+
+.built: $(OBJS)
+	$(call ARCHIVE, $(BIN), $(OBJS))
+	$(Q) touch .built
+
+ifeq ($(CONFIG_NSH_BUILTIN_APPS),y)
+$(BUILTIN_REGISTRY)$(DELIM)$(APPNAME)_main.bdat: $(DEPCONFIG) Makefile
+	$(call REGISTER,$(APPNAME),$(PRIORITY),$(STACKSIZE),$(APPNAME)_main)
+
+context: $(BUILTIN_REGISTRY)$(DELIM)$(APPNAME)_main.bdat
+else
+context:
+endif
+
+.depend: Makefile $(SRCS)
+	$(Q) $(MKDEP) $(ROOTDEPPATH) "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep
+	$(Q) touch $@
+
+depend: .depend
+
+clean:
+	$(call DELFILE, .built)
+	$(call CLEAN)
+
+distclean: clean
+	$(call DELFILE, Make.dep)
+	$(call DELFILE, .depend)
+
+-include Make.dep
diff --git a/apps/graphics/screenshot/screenshot_main.c b/apps/graphics/screenshot/screenshot_main.c
new file mode 100644
index 000000000..04f4e9281
--- /dev/null
+++ b/apps/graphics/screenshot/screenshot_main.c
@@ -0,0 +1,238 @@
+/****************************************************************************
+ * apps/examples/screenshot/screenshot_main.c
+ *
+ *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *           Petteri Aimonen <jpa@kapsi.fi>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <string.h>
+#include <errno.h>
+
+#include <apps/tiff.h>
+
+#include <semaphore.h>
+#include <nuttx/config.h>
+#include <nuttx/nx/nx.h>
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+
+#ifndef CONFIG_SCREENSHOT_WIDTH
+#  define CONFIG_SCREENSHOT_WIDTH 320
+#endif
+
+#ifndef CONFIG_SCREENSHOT_HEIGHT
+#  define CONFIG_SCREENSHOT_HEIGHT 240
+#endif
+
+#ifndef CONFIG_SCREENSHOT_FORMAT
+#  define CONFIG_SCREENSHOT_FORMAT FB_FMT_RGB16_565
+#endif
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+static void replace_extension(FAR const char *filename, FAR const char *newext,
+                              FAR char *dest, size_t size)
+{
+  FAR char *p = strrchr(filename, '.');
+  int len = strlen(filename);
+  
+  if (p != NULL)
+    {
+      len = p - filename;
+    }
+  
+  if (len > size)
+    {
+      len = size - strlen(newext);
+    }
+  
+  strncpy(dest, filename, size);
+  strncpy(dest + len, newext, size - len);
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: save_screenshot
+ *
+ * Description:
+ *   Takes a screenshot and saves it to a tif file.
+ *
+ ****************************************************************************/
+
+int save_screenshot(FAR const char *filename)
+{
+  struct tiff_info_s info;
+  FAR uint8_t *strip;
+  int x;
+  int y;
+  int ret;
+  char tempf1[64];
+  char tempf2[64];
+  NXHANDLE server;
+  NXWINDOW window;
+  struct nx_callback_s cb = {};
+  struct nxgl_size_s size = {CONFIG_SCREENSHOT_WIDTH, CONFIG_SCREENSHOT_HEIGHT};
+
+  replace_extension(filename, ".tm1", tempf1, sizeof(tempf1));
+  replace_extension(filename, ".tm2", tempf2, sizeof(tempf2));
+
+  /* Connect to NX server */
+  
+  server = nx_connect();
+  if (!server)
+  {
+    perror("nx_connect");
+    return 1;
+  }
+  
+  /* Wait for "connected" event */
+  
+  if (nx_eventhandler(server) < 0)
+  {
+    perror("nx_eventhandler");
+    nx_disconnect(server);
+    return 1;
+  }
+  
+  /* Open invisible dummy window for communication */
+  
+  window = nx_openwindow(server, &cb, NULL);
+  if (!window)
+  {
+    perror("nx_openwindow");
+    nx_disconnect(server);
+    return 1;
+  }
+  
+  nx_setsize(window, &size);
+  
+  /* Configure the TIFF structure */
+
+  memset(&info, 0, sizeof(struct tiff_info_s));
+  info.outfile   = filename;
+  info.tmpfile1  = tempf1;
+  info.tmpfile2  = tempf2;
+  info.colorfmt  = CONFIG_SCREENSHOT_FORMAT;
+  info.rps       = 1;
+  info.imgwidth  = size.w;
+  info.imgheight = size.h;
+  info.iobuffer  = (uint8_t *)malloc(300);
+  info.iosize    = 300;
+  
+  /* Initialize the TIFF library */
+
+  ret = tiff_initialize(&info);
+  if (ret < 0)
+    {
+      printf("tiff_initialize() failed: %d\n", ret);
+      return 1;
+    }
+
+  /* Add each strip to the TIFF file */
+
+  strip = malloc(size.w * 3);
+  
+  for (int y = 0; y < size.h; y++)
+  {
+    struct nxgl_rect_s rect = {{0, y}, {size.w - 1, y}};
+    nx_getrectangle(window, &rect, 0, strip, 0);
+    
+    ret = tiff_addstrip(&info, strip);
+    if (ret < 0)
+      {
+        printf("tiff_addstrip() #%d failed: %d\n", y, ret);
+        break;
+      }
+  }
+  
+  free(strip);
+  
+  /* Then finalize the TIFF file */
+
+  ret = tiff_finalize(&info);
+  if (ret < 0)
+    {
+      printf("tiff_finalize() failed: %d\n", ret);
+    }
+  
+  free(info.iobuffer);
+  nx_closewindow(window);
+  nx_disconnect(server);
+  
+  return 0;
+}
+
+/****************************************************************************
+ * Name: screenshot_main
+ *
+ * Description:
+ *   Main entry point for the screenshot NSH application.
+ *
+ ****************************************************************************/
+
+int screenshot_main(int argc, char *argv[])
+{
+  if (argc != 2)
+    {
+      fprintf(stderr, "Usage: screenshot file.tif\n");
+      return 1;
+    }
+  
+  return save_screenshot(argv[1]);
+}