• glMapBufferRange and glUnmapBuffer performance on the Mali-T880
    Hello all, I'm currently using glMapBufferRange to update a trippled buffered UBO in instanced rendering, but I'm noticing that calling glUnmapBuffer is taking ~0.5ms of CPU time, despite calling...
  • Using clEnqueueMapBuffer Mali-T880
    Hi everyone, I'd like to know what happens when I use the command clEnqueueMapBuffer to the hardware level. All the buffer at CPU-side cache is invalidated? And when I use the command clEnqueueUnmapMemObject...
  • Mali-T880 in Helio X20
    Hello, I am developing software based on mali-T880 (X20) with OpenCL.I was wondering the specific structure of the mali-T880, including the number of shadercores,the structure of each shadercore ,the...
  • OpenGL ES 3.1 on Mali T880: flashes
    Hello OpenGL gurus, I have written a OpenGL ES 3.1 app for mobile devices and I am battling with problems on ARM Mali GPU. I can reproduce the problem easily using a Samsung Galaxy S7 phone equipped with...
  • Possible ESSL Compiler Bug on Mali-T880
    Hello, I am seeing an issue where a shader will erroneously result in a solid black color.  If a line is changed to use a multiply add (adding the smallest possible float value), the correct color is...