egl-multi-thread: Add example application for multi-threaded EGL

Multi-threaded EGL is always a very tricky operation. This application shows
how to use GBM EGL or Wayland EGL for correct multi-threaded operation on TI
DRA7xx SoC.

Signed-off-by: Subhajit Paul <subhajit_paul@ti.com>
Signed-off-by: Anand Balagopalakrishnan <anandb@ti.com>

Remove eglPixmap and eglImage applications

The EGLPixmap and EGLImage features have been integrated into omapdrmtest
system application.
https://git.ti.com/glsdk/omapdrmtest

Specifically, look at:
http://git.ti.com/glsdk/omapdrmtest/blobs/master/util/display-kmscube.c

Signed-off-by: Anand Balagopalakrishnan <anandb@ti.com>

Add README file and call out disclaimers / set expectations

Signed-off-by: Anand Balagopalakrishnan <anandb@ti.com>

remove gbm header files from application

GBM header files are packaged as part of GLSDK. Remove them from the
application.

Signed-off-by: Anand Balagopalakrishnan <anandb@ti.com>

Added EGL Fence support

Signed-off-by: Subhajit Paul <a0132170@ti.com>

added DRA7xx specific pixmap example

Signed-off-by: Subhajit Paul <a0132170@ti.com>

removing omap3 specific eglPixmap example

Signed-off-by: Subhajit Paul <a0132170@ti.com>

Move the texture2D operation to the vertex shader

Signed-off-by: Anand Balagopalakrishnan <anandb@ti.com>

eglimage: Fix memory alignment to PAGE_SIZE

Aligned memory address should be greater than allocated address.

Support for 2x2 matrix of NV12 buffers

* 4 separate rectangles and their coordinates
* added test case to show different colors in each of 4 rectangles

Signed-off-by: Anand Balagopalakrishnan <anandb@ti.com>

Fixed the t-coordinate inversion

Signed-off-by: Anand Balagopalakrishnan <anandb@ti.com>

Fixed a bug for calculating size of video buffer in case of a file read

Signed-off-by: Anand Balagopalakrishnan <anandb@ti.com>

Fixed the texture coordinates to map the entire texture to rectangle

Signed-off-by: Anand Balagopalakrishnan <anandb@ti.com>

Add support for reading YUV buffer from a file

Signed-off-by: Anand Balagopalakrishnan <anandb@ti.com>

Updated the readme file for Jacinto6

Signed-off-by: Anand Balagopalakrishnan <anandb@ti.com>

EGLImage example for Jacinto6 with DRM

Signed-off-by: Anand Balagopalakrishnan <anandb@ti.com>

Update the directory names and remove 'test'

Signed-off-by: Anand Balagopalakrishnan <anandb@ti.com>

gfx-apps : Adding eglimage and pixmap unit tests

This adds the eglimage and pixmap unit/sample test applications.

Signed-off-by: Prathap MS <msprathap@ti.com>