The files are located at:
http://www.dcbcyber.com/tmp/src.tar.gz
or
http://www.dcbcyber.com/tmp/src.zip
Originally this did more than what you are asking for. I had Bullet physics
doing ray casting and collision detection and OpenAL playing sounds. I also had
two rooms connected by a corridor. Unfortunately I seem to have lost my media
files that I created. Without drawing the meshes it should still load up and
draw a cross hair in the middle of the screen. I also included a line you can
uncomment that should turn the cross hair into a triangle.
I commented out the code for physics, sound, world loading, and input and
movement. Feel free to play with that stuff if you feel like it.
The code is messy. I never got around to cleaning up or finishing.
If it doesn't work let me know. I will help as much as I can. I no longer have
a Beagleboard. I don't have a BBB but I might get one. I do have a Pandaboard
which is similar.
David.
--------------------------------------------
On Thu, 8/6/15, John London <john.tip...@blackkitetechnology.com> wrote:
Subject: Re: [beagleboard] OpenGL and BBB - simple HelloTriangle example
To: "BeagleBoard" <beagleboard@googlegroups.com>
Cc: n2...@yahoo.com
Date: Thursday, August 6, 2015, 11:09 AM
David, thank
you very much indeed, that would be extremely
helpful!
On Thursday, August 6, 2015 at 3:05:27 PM
UTC+1, davidcb wrote: At home I have a very
simple program I wrote for the Beagleboard that does what
you are trying to do. I think it should compile for the BBB
fairly easily. When I get home later this evening I can find
it and send it to you.
On Thursday, August
6, 2015 8:18 AM, John London <john....@
blackkitetechnology.com> wrote:
I'm trying to get a simple example (Hello Triangle)
working with BBB running Debian. I do NOT want to run the
example under X11 - I want to run it from the command line.
I do not want to use GLUT; I think this means it uses the
framebuffer. Is this possible and does anyone have an
example of how to do this please?
I have been trying to use the example below,
taken directly from the Examples directory of the PowerVR
SDK. When I run the compiled program, I get an
error:
libEGL
warning: DRI2: xcb_connect failed
libEGL warning: DRI2: xcb_connect failed
Failed to initialise the EGLDisplay
Is the code trying to make a connection to X11
perhaps?
I am using the Makefile and code below.
#
# File
Makefile
# Title Makes the
demo
# Author
PowerVR
#
# Copyright
Copyright (C) by Imagination Technologies
Limited.
#
.PHONY: clean
SDKDIR = $(shell cd ../../../../../.. && pwd)
VPATH = ../..
CROSS_COMPILE ?= arm-linux-gnueabihf-
ifdef TOOLCHAIN
PLAT_CC = $(TOOLCHAIN)/bin/$(CROSS_ COMPILE)gcc
PLAT_CPP = $(TOOLCHAIN)/bin/$(CROSS_ COMPILE)g++
PLAT_AR = $(TOOLCHAIN)/bin/$(CROSS_ COMPILE)ar
else
PLAT_CC = $(CROSS_COMPILE)gcc
PLAT_CPP = $(CROSS_COMPILE)g++
PLAT_AR = $(CROSS_COMPILE)ar
endif
ifeq "$(X11BUILD)" "1"
ifndef X11ROOT
$(error When building an X11 BUILD you must
set X11ROOT to point at the location
where your X11 headers and libs can be found.)
endif
ifeq "$(EWSBUILD)" "1"
$(error Cannot have both X11BUILD and EWSBUILD enabled at the same
time)
endif
WS_LIBS = -L$(X11ROOT)/lib -lX11 -lXau -ldl
WS_RPATH = $(X11ROOT)/lib
WS_INC = $(X11ROOT)/include
WS = X11
else
ifeq "$(EWSBUILD)" "1"
PLAT_CFLAGS += -DEWS
WS_LIBS = -lews
WS_INC =
WS=EWS
else
ifeq "$(DRMBUILD)" "1"
ifndef DRMROOT
$(error When building a DRM BUILD you must
set DRMROOT to point at the location
where your DRM headers and libs can be found.)
endif
WS_LIBS = -L$(DRMROOT)/lib -ldrm -lgbm -ludev -ldl
-Wl,--rpath-link,$(DRMROOT)/li b
WS_INC = $(DRMROOT)/include $(DRMROOT)/include/libdrm $(DRMROOT)/include/gbm
WS=DRM
else
WS_LIBS =
WS_INC =
WS = NullWS
endif
endif
endif
LIBDIR ?= $(SDKDIR)/Builds/Linux/armv7hf /Lib
LIBDIR_FLAGS = -L$(LIBDIR) -Wl,--rpath-link,$(LIBDIR):$(W S_RPATH)
ifdef Debug
DEBUG_RELEASE = Debug
PLAT_CFLAGS += -g
else
DEBUG_RELEASE = Release
PLAT_CFLAGS += -O2
endif
PLAT_CFLAGS += -Wall -march=armv7 -mfloat-abi=hard
PLAT_INC = $(SDKDIR)/Builds/Include $(WS_INC)
PLAT_OBJPATH = $(DEBUG_RELEASE)$(WS)
PLAT_LINK = $(LIBDIR_FLAGS) -lEGL -lGLESv2 $(WS_LIBS) -L$(TOOLCHAIN)/lib
-march=armv7 -mfloat-abi=hard
ifeq "$(WS)" "X11"
SRCNAME = OGLES2HelloAPI_LinuxX11
else
ifeq "$(WS)" "EWS"
SRCNAME = OGLES2HelloAPI_EWS
else
ifeq "$(WS)" "DRM"
SRCNAME = OGLES2HelloAPI_LinuxDRM
else
SRCNAME = OGLES2HelloAPI_NullWS
endif
endif
endif
OUTNAME = OGLES2HelloAPI
OBJECTS = $(PLAT_OBJPATH)/$(SRCNAME).o
COMMON_INCLUDES = $(addprefix -
...
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