Geometry Batching

Geometry Batching

A reduction in GL calls can be observed when running the example with the following options for comparison:

DALI_GLES_CALL_TIME=1 DALI_GLES_CALL_TIME_ACCUMULATE=1 homescreen-benchmark.example –disable-icon-labels
&
DALI_GLES_CALL_TIME=1 DALI_GLES_CALL_TIME_ACCUMULATE=1 homescreen-benchmark.example –disable-icon-labels –disable-batching

                 W/O Batching      W/ Batching     % Improvement
Bind buffers       0.00             11.88             N/A
Bind textures      4.03              5.6             -26%
Draw calls        27.31             10.06            +63%
Uniform sets      53.88             10.06            +81%

Note: Larger improvements can be seen when the bottleneck is within the Render thread (instead of Update).

Change-Id: I294665299f2d7d8149563f1ea7fed730aed53da6