Fix numerous errors in trapezoid rendering and wide line drawing algorithms
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3840 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
parent
a5ac1ebcc6
commit
ff5fda55d1
@ -93,3 +93,6 @@
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memory.
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6.8 2011-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr>
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* apps/examples/nxlines: Added a test for NX line drawing capabilities.
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@ -38,9 +38,9 @@
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# Sub-directories
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SUBDIRS = buttons dhcpd ftpc hello helloxx hidkbd igmp mm mount nettest \
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nsh null nx nxffs nxflat nxhello nximage nxtext ostest pashello pipe \
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poll rgmp romfs sendmail serloop thttpd udp uip usbserial usbstorage \
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wget wlan
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nsh null nx nxffs nxflat nxhello nximage nxlines nxtext ostest pashello \
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pipe poll rgmp romfs sendmail serloop thttpd udp uip usbserial \
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usbstorage wget wlan
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# Sub-directories that might need context setup
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@ -55,6 +55,9 @@ endif
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ifeq ($(CONFIG_EXAMPLES_NXIMAGE_BUILTIN),y)
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CNTXTDIRS += nximage
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endif
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ifeq ($(CONFIG_EXAMPLES_LINES_BUILTIN),y)
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CNTXTDIRS += nxlines
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endif
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ifeq ($(CONFIG_EXAMPLES_NXTEXT_BUILTIN),y)
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CNTXTDIRS += nxtext
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endif
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@ -406,6 +406,40 @@ examples/nximage
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NOTE: As of this writing, most of the pixel depth, scaling options, and
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combinations thereof have not been tested.
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examplex/nxlines
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^^^^^^^^^^^^^^^^
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A very simple graphics example that just exercised the NX line drawing
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logic.
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The following configuration options can be selected:
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CONFIG_EXAMPLES_NXLINES_BUILTIN -- Build the NXLINES example as a "built-in"
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that can be executed from the NSH command line
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CONFIG_EXAMPLES_NXLINES_VPLANE -- The plane to select from the frame-
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buffer driver for use in the test. Default: 0
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CONFIG_EXAMPLES_NXLINES_DEVNO - The LCD device to select from the LCD
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driver for use in the test: Default: 0
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CONFIG_EXAMPLES_NXLINES_BGCOLOR -- The color of the background. Default
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depends on CONFIG_EXAMPLES_NXLINES_BPP.
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CONFIG_EXAMPLES_NXLINES_LINEWIDTH - Selects the width of the lines in
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pixels (default: 16)
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CONFIG_EXAMPLES_NXLINES_LINECOLOR -- The color of the lines drawn in the
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background window. Default depends on CONFIG_EXAMPLES_NXLINES_BPP.
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CONFIG_EXAMPLES_NXLINES_BPP -- Pixels per pixel to use. Valid options
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include 2, 4, 8, 16, 24, and 32. Default is 16.
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CONFIG_EXAMPLES_NXLINES_EXTERNINIT - The driver for the graphics device on
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this platform requires some unusual initialization. This is the
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for, for example, SPI LCD/OLED devices. If this configuration is
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selected, then the platform code must provide an LCD initialization
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function with a prototype like:
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#ifdef CONFIG_NX_LCDDRIVER
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FAR struct lcd_dev_s *up_nxdrvinit(unsigned int devno);
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#else
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FAR struct fb_vtable_s *up_nxdrvinit(unsigned int devno);
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#endif
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examples/nxtext
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^^^^^^^^^^^^^^^
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105
examples/nxlines/Makefile
Normal file
105
examples/nxlines/Makefile
Normal file
@ -0,0 +1,105 @@
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############################################################################
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# apps/examples/nxlines/Makefile
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#
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# Copyright (C) 2011 Gregory Nutt. All rights reserved.
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# Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in
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# the documentation and/or other materials provided with the
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# distribution.
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# 3. Neither the name NuttX nor the names of its contributors may be
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# used to endorse or promote products derived from this software
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# without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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############################################################################
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-include $(TOPDIR)/.config
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-include $(TOPDIR)/Make.defs
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include $(APPDIR)/Make.defs
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# NuttX NX Graphics Example.
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ASRCS =
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CSRCS = nxlines_main.c nxlines_bkgd.c
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AOBJS = $(ASRCS:.S=$(OBJEXT))
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COBJS = $(CSRCS:.c=$(OBJEXT))
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SRCS = $(ASRCS) $(CSRCS)
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OBJS = $(AOBJS) $(COBJS)
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ifeq ($(WINTOOL),y)
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BIN = "${shell cygpath -w $(APPDIR)/libapps$(LIBEXT)}"
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else
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BIN = "$(APPDIR)/libapps$(LIBEXT)"
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endif
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ROOTDEPPATH = --dep-path .
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# NXLINES built-in application info
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APPNAME = nxlines
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PRIORITY = SCHED_PRIORITY_DEFAULT
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STACKSIZE = 2048
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# Common build
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VPATH =
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all: .built
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.PHONY: context clean depend distclean
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$(AOBJS): %$(OBJEXT): %.S
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$(call ASSEMBLE, $<, $@)
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$(COBJS): %$(OBJEXT): %.c
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$(call COMPILE, $<, $@)
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.built: $(OBJS)
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@( for obj in $(OBJS) ; do \
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$(call ARCHIVE, $(BIN), $${obj}); \
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done ; )
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@touch .built
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.context:
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ifeq ($(CONFIG_EXAMPLES_NXLINES_BUILTIN),y)
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$(call REGISTER,$(APPNAME),$(PRIORITY),$(STACKSIZE),$(APPNAME)_main)
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@touch $@
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endif
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context: .context
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.depend: Makefile $(SRCS)
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@$(MKDEP) $(ROOTDEPPATH) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
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@touch $@
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depend: .depend
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clean:
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@rm -f *.o *~ .*.swp .built
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$(call CLEAN)
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distclean: clean
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@rm -f Make.dep .depend
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-include Make.dep
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173
examples/nxlines/nxlines.h
Normal file
173
examples/nxlines/nxlines.h
Normal file
@ -0,0 +1,173 @@
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/****************************************************************************
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* examples/nxlines/nxlines.h
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*
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* Copyright (C) 2011 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __APPS_EXAMPLES_NXLINES_NXLINES_H
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#define __APPS_EXAMPLES_NXLINES_NXLINES_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <semaphore.h>
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#include <nuttx/nx/nxglib.h>
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#include <nuttx/nx/nx.h>
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#include <nuttx/rgbcolors.h>
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/****************************************************************************
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* Definitions
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****************************************************************************/
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/* Configuration ************************************************************/
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#ifndef CONFIG_NX
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# error "NX is not enabled (CONFIG_NX)"
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#endif
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#ifndef CONFIG_EXAMPLES_NXLINES_VPLANE
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# define CONFIG_EXAMPLES_NXLINES_VPLANE 0
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#endif
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#ifndef CONFIG_EXAMPLES_NXLINES_BPP
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# define CONFIG_EXAMPLES_NXLINES_BPP 16
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#endif
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#ifndef CONFIG_EXAMPLES_NXLINES_BGCOLOR
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# if CONFIG_EXAMPLES_NXLINES_BPP == 24 || CONFIG_EXAMPLES_NXLINES_BPP == 32
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# define CONFIG_EXAMPLES_NXLINES_BGCOLOR RGB24_DARKGREEN
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# elif CONFIG_EXAMPLES_NXLINES_BPP == 16
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# define CONFIG_EXAMPLES_NXLINES_BGCOLOR RGB16_DARKGREEN
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# else
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# define CONFIG_EXAMPLES_NXLINES_BGCOLOR RGB8_DARKGREEN
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# endif
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#endif
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#ifndef CONFIG_EXAMPLES_NXLINES_LINEWIDTH
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# define CONFIG_EXAMPLES_NXLINES_LINEWIDTH 16
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#endif
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#ifndef CONFIG_EXAMPLES_NXLINES_LINECOLOR
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# if CONFIG_EXAMPLES_NXLINES_BPP == 24 || CONFIG_EXAMPLES_NXLINES_BPP == 32
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# define CONFIG_EXAMPLES_NXLINES_LINECOLOR RGB24_YELLOW
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# elif CONFIG_EXAMPLES_NXLINES_BPP == 16
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# define CONFIG_EXAMPLES_NXLINES_LINECOLOR RGB16_YELLOW
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# else
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# define CONFIG_EXAMPLES_NXLINES_LINECOLOR RGB8_YELLOW
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# endif
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#endif
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/* Debug ********************************************************************/
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#ifdef CONFIG_CPP_HAVE_VARARGS
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# ifdef CONFIG_DEBUG
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# define message(...) lib_lowprintf(__VA_ARGS__)
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# define msgflush()
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# else
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# define message(...) printf(__VA_ARGS__)
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# define msgflush() fflush(stdout)
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# endif
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#else
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# ifdef CONFIG_DEBUG
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# define message lib_lowprintf
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# define msgflush()
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# else
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# define message printf
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# define msgflush() fflush(stdout)
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# endif
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#endif
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/****************************************************************************
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* Public Types
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****************************************************************************/
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enum exitcode_e
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{
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NXEXIT_SUCCESS = 0,
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NXEXIT_EXTINITIALIZE,
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NXEXIT_FBINITIALIZE,
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NXEXIT_FBGETVPLANE,
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NXEXIT_LCDINITIALIZE,
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NXEXIT_LCDGETDEV,
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NXEXIT_NXOPEN,
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NXEXIT_NXREQUESTBKGD,
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NXEXIT_NXSETBGCOLOR
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};
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struct nxlines_data_s
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{
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/* The NX handles */
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NXHANDLE hnx;
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NXHANDLE hbkgd;
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/* The screen resolution */
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nxgl_coord_t xres;
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nxgl_coord_t yres;
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volatile bool havepos;
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sem_t sem;
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volatile int code;
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};
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/****************************************************************************
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* Public Variables
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****************************************************************************/
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/* NXLINES state data */
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extern struct nxlines_data_s g_nxlines;
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/* NX callback vtables */
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extern const struct nx_callback_s g_bgcb;
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#ifdef CONFIG_EXAMPLES_NXLINES_EXTERNINIT
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extern FAR NX_DRIVERTYPE *up_nxdrvinit(unsigned int devno);
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#endif
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/* Background window interfaces */
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extern void nxlinex_test(NXWINDOW hwnd);
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#endif /* __APPS_EXAMPLES_NXLINES_NXLINES_H */
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271
examples/nxlines/nxlines_bkgd.c
Normal file
271
examples/nxlines/nxlines_bkgd.c
Normal file
@ -0,0 +1,271 @@
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/****************************************************************************
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* examples/nxlines/nxlines_bkgd.c
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*
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* Copyright (C) 2011 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
|
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* modification, are permitted provided that the following conditions
|
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* 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.
|
||||
*
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****************************************************************************/
|
||||
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/****************************************************************************
|
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* Included Files
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||||
****************************************************************************/
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||||
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <debug.h>
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#include <fixedmath.h>
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#include <nuttx/nx/nx.h>
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#include <nuttx/nx/nxglib.h>
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#include "nxlines.h"
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/****************************************************************************
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* Definitions
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****************************************************************************/
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#ifndef MIN
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# define MIN(a,b) (a < b ? a : b)
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#endif
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/****************************************************************************
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* Private Types
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****************************************************************************/
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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static void nxlines_redraw(NXWINDOW hwnd, FAR const struct nxgl_rect_s *rect,
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bool morem, FAR void *arg);
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static void nxlines_position(NXWINDOW hwnd, FAR const struct nxgl_size_s *size,
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FAR const struct nxgl_point_s *pos,
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FAR const struct nxgl_rect_s *bounds,
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FAR void *arg);
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#ifdef CONFIG_NX_MOUSE
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static void nxlines_mousein(NXWINDOW hwnd, FAR const struct nxgl_point_s *pos,
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uint8_t buttons, FAR void *arg);
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#endif
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#ifdef CONFIG_NX_KBD
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static void nxlines_kbdin(NXWINDOW hwnd, uint8_t nch, FAR const uint8_t *ch,
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FAR void *arg);
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#endif
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/* Background window call table */
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const struct nx_callback_s g_bgcb =
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{
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nxlines_redraw, /* redraw */
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nxlines_position /* position */
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#ifdef CONFIG_NX_MOUSE
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, nxlines_mousein /* mousein */
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#endif
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#ifdef CONFIG_NX_KBD
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, nxlines_kbdin /* my kbdin */
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#endif
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};
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nxlines_redraw
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****************************************************************************/
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static void nxlines_redraw(NXWINDOW hwnd, FAR const struct nxgl_rect_s *rect,
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bool more, FAR void *arg)
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{
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gvdbg("hwnd=%p rect={(%d,%d),(%d,%d)} more=%s\n",
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hwnd, rect->pt1.x, rect->pt1.y, rect->pt2.x, rect->pt2.y,
|
||||
more ? "true" : "false");
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: nxlines_position
|
||||
****************************************************************************/
|
||||
|
||||
static void nxlines_position(NXWINDOW hwnd, FAR const struct nxgl_size_s *size,
|
||||
FAR const struct nxgl_point_s *pos,
|
||||
FAR const struct nxgl_rect_s *bounds,
|
||||
FAR void *arg)
|
||||
{
|
||||
/* Report the position */
|
||||
|
||||
gvdbg("hwnd=%p size=(%d,%d) pos=(%d,%d) bounds={(%d,%d),(%d,%d)}\n",
|
||||
hwnd, size->w, size->h, pos->x, pos->y,
|
||||
bounds->pt1.x, bounds->pt1.y, bounds->pt2.x, bounds->pt2.y);
|
||||
|
||||
/* Have we picked off the window bounds yet? */
|
||||
|
||||
if (!g_nxlines.havepos)
|
||||
{
|
||||
/* Save the background window handle */
|
||||
|
||||
g_nxlines.hbkgd = hwnd;
|
||||
|
||||
/* Save the window limits */
|
||||
|
||||
g_nxlines.xres = bounds->pt2.x + 1;
|
||||
g_nxlines.yres = bounds->pt2.y + 1;
|
||||
|
||||
g_nxlines.havepos = true;
|
||||
sem_post(&g_nxlines.sem);
|
||||
gvdbg("Have xres=%d yres=%d\n", g_nxlines.xres, g_nxlines.yres);
|
||||
}
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: nxlines_mousein
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_NX_MOUSE
|
||||
static void nxlines_mousein(NXWINDOW hwnd, FAR const struct nxgl_point_s *pos,
|
||||
uint8_t buttons, FAR void *arg)
|
||||
{
|
||||
message("nxlines_mousein: hwnd=%p pos=(%d,%d) button=%02x\n",
|
||||
hwnd, pos->x, pos->y, buttons);
|
||||
}
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Name: nxlines_kbdin
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_NX_KBD
|
||||
static void nxlines_kbdin(NXWINDOW hwnd, uint8_t nch, FAR const uint8_t *ch,
|
||||
FAR void *arg)
|
||||
{
|
||||
gvdbg("hwnd=%p nch=%d\n", hwnd, nch);
|
||||
|
||||
/* In this example, there is no keyboard so a keyboard event is not
|
||||
* expected.
|
||||
*/
|
||||
|
||||
message("nxlines_kbdin: Unexpected keyboard callback\n");
|
||||
}
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: nxlinex_test
|
||||
*
|
||||
* Description:
|
||||
* Print "Hello, World!" in the center of the display.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void nxlinex_test(NXWINDOW hwnd)
|
||||
{
|
||||
struct nxgl_vector_s vector;
|
||||
struct nxgl_vector_s previous;
|
||||
nxgl_mxpixel_t color[CONFIG_NX_NPLANES];
|
||||
nxgl_coord_t xcenter;
|
||||
nxgl_coord_t ycenter;
|
||||
nxgl_coord_t radius;
|
||||
nxgl_coord_t halfx;
|
||||
nxgl_coord_t halfy;
|
||||
b16_t angle;
|
||||
int ret;
|
||||
|
||||
/* Get the radius and center of the circle */
|
||||
|
||||
radius = MIN(g_nxlines.yres, g_nxlines.xres) >> 1;
|
||||
xcenter = g_nxlines.xres >> 1;
|
||||
ycenter = g_nxlines.yres >> 1;
|
||||
|
||||
angle = 0;
|
||||
previous.pt1.x = xcenter;
|
||||
previous.pt1.y = ycenter;
|
||||
previous.pt2.x = xcenter;
|
||||
previous.pt2.y = ycenter;
|
||||
|
||||
for (;;)
|
||||
{
|
||||
/* Determine the position of the line on this pass */
|
||||
|
||||
halfx = b16toi(b16muli(b16sin(angle), radius));
|
||||
halfy = b16toi(b16muli(b16cos(angle), radius));
|
||||
|
||||
vector.pt1.x = xcenter + halfx;
|
||||
vector.pt1.y = ycenter + halfy;
|
||||
vector.pt2.x = xcenter - halfx;
|
||||
vector.pt2.y = ycenter - halfy;
|
||||
|
||||
message("Angle: %04x vector: (%d,%d)->(%d,%d)\n",
|
||||
angle, vector.pt1.x, vector.pt1.y, vector.pt2.x, vector.pt2.y);
|
||||
|
||||
/* Clear the previous line */
|
||||
|
||||
color[0] = CONFIG_EXAMPLES_NXLINES_BGCOLOR;
|
||||
ret = nx_drawline((NXWINDOW)hwnd, &previous, CONFIG_EXAMPLES_NXLINES_LINEWIDTH, color);
|
||||
if (ret < 0)
|
||||
{
|
||||
message("nxlinex_test: nx_drawline failed clearing: %d\n", ret);
|
||||
}
|
||||
|
||||
/* Draw the new line */
|
||||
|
||||
color[0] = CONFIG_EXAMPLES_NXLINES_LINECOLOR;
|
||||
ret = nx_drawline((NXWINDOW)hwnd, &vector, CONFIG_EXAMPLES_NXLINES_LINEWIDTH, color);
|
||||
if (ret < 0)
|
||||
{
|
||||
message("nxlinex_test: nx_drawline failed clearing: %d\n", ret);
|
||||
}
|
||||
|
||||
/* Set up for the next time throught the loop then sleep for a bit. */
|
||||
|
||||
angle += b16PI / 16; /* 32 angular positions in full circle */
|
||||
if (angle > (31 * (2 * b16PI) / 16)) /* Wrap back to zero.. allowing for slop */
|
||||
{
|
||||
angle = 0;
|
||||
}
|
||||
|
||||
memcpy(&previous, &vector, sizeof(struct nxgl_vector_s));
|
||||
usleep(500*1000);
|
||||
}
|
||||
}
|
||||
280
examples/nxlines/nxlines_main.c
Normal file
280
examples/nxlines/nxlines_main.c
Normal file
@ -0,0 +1,280 @@
|
||||
/****************************************************************************
|
||||
* examples/nxlines/nxlines_main.c
|
||||
*
|
||||
* Copyright (C) 2011 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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 <nuttx/config.h>
|
||||
|
||||
#include <sys/types.h>
|
||||
|
||||
#include <stdint.h>
|
||||
#include <stdio.h>
|
||||
#include <unistd.h>
|
||||
#include <time.h>
|
||||
#include <string.h>
|
||||
#include <sched.h>
|
||||
#include <errno.h>
|
||||
#include <debug.h>
|
||||
|
||||
#ifdef CONFIG_NX_LCDDRIVER
|
||||
# include <nuttx/lcd/lcd.h>
|
||||
#else
|
||||
# include <nuttx/fb.h>
|
||||
#endif
|
||||
|
||||
#include <nuttx/arch.h>
|
||||
#include <nuttx/nx/nx.h>
|
||||
#include <nuttx/nx/nxglib.h>
|
||||
|
||||
#include "nxlines.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/* Configuration ************************************************************/
|
||||
/* If not specified, assume that the hardware supports one video plane */
|
||||
|
||||
#ifndef CONFIG_EXAMPLES_NXLINES_VPLANE
|
||||
# define CONFIG_EXAMPLES_NXLINES_VPLANE 0
|
||||
#endif
|
||||
|
||||
/* If not specified, assume that the hardware supports one LCD device */
|
||||
|
||||
#ifndef CONFIG_EXAMPLES_NXLINES_DEVNO
|
||||
# define CONFIG_EXAMPLES_NXLINES_DEVNO 0
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Private Types
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Function Prototypes
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Data
|
||||
****************************************************************************/
|
||||
|
||||
struct nxlines_data_s g_nxlines =
|
||||
{
|
||||
NULL, /* hnx */
|
||||
NULL, /* hbkgd */
|
||||
0, /* xres */
|
||||
0, /* yres */
|
||||
false, /* havpos */
|
||||
{ 0 }, /* sem */
|
||||
NXEXIT_SUCCESS /* exit code */
|
||||
};
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: nxlines_initialize
|
||||
****************************************************************************/
|
||||
|
||||
static inline int nxlines_initialize(void)
|
||||
{
|
||||
FAR NX_DRIVERTYPE *dev;
|
||||
|
||||
#if defined(CONFIG_EXAMPLES_NXLINES_EXTERNINIT)
|
||||
/* Use external graphics driver initialization */
|
||||
|
||||
message("nxlines_initialize: Initializing external graphics device\n");
|
||||
dev = up_nxdrvinit(CONFIG_EXAMPLES_NXLINES_DEVNO);
|
||||
if (!dev)
|
||||
{
|
||||
message("nxlines_initialize: up_nxdrvinit failed, devno=%d\n",
|
||||
CONFIG_EXAMPLES_NXLINES_DEVNO);
|
||||
g_nxlines.code = NXEXIT_EXTINITIALIZE;
|
||||
return ERROR;
|
||||
}
|
||||
|
||||
#elif defined(CONFIG_NX_LCDDRIVER)
|
||||
int ret;
|
||||
|
||||
/* Initialize the LCD device */
|
||||
|
||||
message("nxlines_initialize: Initializing LCD\n");
|
||||
ret = up_lcdinitialize();
|
||||
if (ret < 0)
|
||||
{
|
||||
message("nxlines_initialize: up_lcdinitialize failed: %d\n", -ret);
|
||||
g_nxlines.code = NXEXIT_LCDINITIALIZE;
|
||||
return ERROR;
|
||||
}
|
||||
|
||||
/* Get the device instance */
|
||||
|
||||
dev = up_lcdgetdev(CONFIG_EXAMPLES_NXLINES_DEVNO);
|
||||
if (!dev)
|
||||
{
|
||||
message("nxlines_initialize: up_lcdgetdev failed, devno=%d\n", CONFIG_EXAMPLES_NXLINES_DEVNO);
|
||||
g_nxlines.code = NXEXIT_LCDGETDEV;
|
||||
return ERROR;
|
||||
}
|
||||
|
||||
/* Turn the LCD on at 75% power */
|
||||
|
||||
(void)dev->setpower(dev, ((3*CONFIG_LCD_MAXPOWER + 3)/4));
|
||||
#else
|
||||
int ret;
|
||||
|
||||
/* Initialize the frame buffer device */
|
||||
|
||||
message("nxlines_initialize: Initializing framebuffer\n");
|
||||
ret = up_fbinitialize();
|
||||
if (ret < 0)
|
||||
{
|
||||
message("nxlines_initialize: up_fbinitialize failed: %d\n", -ret);
|
||||
g_nxlines.code = NXEXIT_FBINITIALIZE;
|
||||
return ERROR;
|
||||
}
|
||||
|
||||
dev = up_fbgetvplane(CONFIG_EXAMPLES_NXLINES_VPLANE);
|
||||
if (!dev)
|
||||
{
|
||||
message("nxlines_initialize: up_fbgetvplane failed, vplane=%d\n", CONFIG_EXAMPLES_NXLINES_VPLANE);
|
||||
g_nxlines.code = NXEXIT_FBGETVPLANE;
|
||||
return ERROR;
|
||||
}
|
||||
#endif
|
||||
|
||||
/* Then open NX */
|
||||
|
||||
message("nxlines_initialize: Open NX\n");
|
||||
g_nxlines.hnx = nx_open(dev);
|
||||
if (!g_nxlines.hnx)
|
||||
{
|
||||
message("nxlines_initialize: nx_open failed: %d\n", errno);
|
||||
g_nxlines.code = NXEXIT_NXOPEN;
|
||||
return ERROR;
|
||||
}
|
||||
return OK;
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: user_start/nxlines_main
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_EXAMPLES_NXLINES_BUILTIN
|
||||
# define MAIN_NAME nxlines_main
|
||||
# define MAIN_NAME_STRING "nxlines_main"
|
||||
#else
|
||||
# define MAIN_NAME user_start
|
||||
# define MAIN_NAME_STRING "user_start"
|
||||
#endif
|
||||
|
||||
int MAIN_NAME(int argc, char *argv[])
|
||||
{
|
||||
nxgl_mxpixel_t color;
|
||||
int ret;
|
||||
|
||||
/* Initialize NX */
|
||||
|
||||
ret = nxlines_initialize();
|
||||
message(MAIN_NAME_STRING ": NX handle=%p\n", g_nxlines.hnx);
|
||||
if (!g_nxlines.hnx || ret < 0)
|
||||
{
|
||||
message(MAIN_NAME_STRING ": Failed to get NX handle: %d\n", errno);
|
||||
g_nxlines.code = NXEXIT_NXOPEN;
|
||||
goto errout;
|
||||
}
|
||||
|
||||
/* Set the background to the configured background color */
|
||||
|
||||
message(MAIN_NAME_STRING ": Set background color=%d\n",
|
||||
CONFIG_EXAMPLES_NXLINES_BGCOLOR);
|
||||
|
||||
color = CONFIG_EXAMPLES_NXLINES_BGCOLOR;
|
||||
ret = nx_setbgcolor(g_nxlines.hnx, &color);
|
||||
if (ret < 0)
|
||||
{
|
||||
message(MAIN_NAME_STRING ": nx_setbgcolor failed: %d\n", errno);
|
||||
g_nxlines.code = NXEXIT_NXSETBGCOLOR;
|
||||
goto errout_with_nx;
|
||||
}
|
||||
|
||||
/* Get the background window */
|
||||
|
||||
ret = nx_requestbkgd(g_nxlines.hnx, &g_bgcb, NULL);
|
||||
if (ret < 0)
|
||||
{
|
||||
message(MAIN_NAME_STRING ": nx_setbgcolor failed: %d\n", errno);
|
||||
g_nxlines.code = NXEXIT_NXREQUESTBKGD;
|
||||
goto errout_with_nx;
|
||||
}
|
||||
|
||||
/* Wait until we have the screen resolution. We'll have this immediately
|
||||
* unless we are dealing with the NX server.
|
||||
*/
|
||||
|
||||
while (!g_nxlines.havepos)
|
||||
{
|
||||
(void)sem_wait(&g_nxlines.sem);
|
||||
}
|
||||
message(MAIN_NAME_STRING ": Screen resolution (%d,%d)\n", g_nxlines.xres, g_nxlines.yres);
|
||||
|
||||
/* Now, say perform the lines (these test does not return so the remaining
|
||||
* logic is cosmetic).
|
||||
*/
|
||||
|
||||
nxlinex_test(g_nxlines.hbkgd);
|
||||
|
||||
/* Release background */
|
||||
|
||||
(void)nx_releasebkgd(g_nxlines.hbkgd);
|
||||
|
||||
/* Close NX */
|
||||
|
||||
errout_with_nx:
|
||||
message(MAIN_NAME_STRING ": Close NX\n");
|
||||
nx_close(g_nxlines.hnx);
|
||||
errout:
|
||||
return g_nxlines.code;
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user