• How to do complex image processing in compute shaders?

    David Tverdota
    David Tverdota

    Hi there,

    I'm trying to implement different image processing algorithms like grayscaling, filtering, quantizing etc. on Android smartphones. I've got the camera preview rendered to a quad
    as an external texture, it works fine with grayscaling in…

    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Mali hardware acceleration on ubuntu on Chromebook

    Roberto Innocenti
    Roberto Innocenti

    Looking at this post

    Graphics and Compute Development on Samsung Chromebook « Mali Developer Center Mali Developer Center

    I have see that is possible to have Mali GPU hardware acceleration on Samsung ARM Chromebook with Ubuntu.

    On the post you guide…

    • Answered
    • over 6 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Benchmarking OpenGL/Vulkan applications on QNX

    JWalsh
    JWalsh

    Hi.  I am new to this forum.  Sorry for the newbie question..

    I'd like to be able to do performance benchmarking across different vendor SoC's.  My application runs on QNX.  Can you recommend performance analyzers that would work for me?  I just found…

    • Answered
    • over 2 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Mali-G72: glTexStorage2DMultisample samples count mismatch

    Ricardas
    Ricardas

    Mali-G72 (Samsung galaxy S9+)

    OpenGL ES 3.2, creating FBO with multisample color and depth attachements results in error GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE.

    GL_COLOR_ATTACHMENT0 Type:GL_TEXTURE
    GL_DEPTH_ATTACHMENT Type:GL_RENDERBUFFER
    GL_STENCIL_ATTACHMENT…

    • Answered
    • over 2 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • OpenGL ES 3.1 on Mali T880: flashes

    Utumno
    Utumno

    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 a Mali T880 GPU. The program appears to run correctly…

    • Answered
    • over 2 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • There is a crash when doing glclearColor on the arm Mali-G71, Mali-G72

    sgKim
    sgKim

    Hello, I'm a developer in fiends of graphic.

    I found the bugs my application regarding mali.so. So, I want to get some advices.

    My app accor an abnormal termination when doing glClearColor().

    It happens not always, but quite often.

    There is the callstacks…

    • Answered
    • over 2 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Stall in Image Store with Framebuffer Fetch

    metora
    metora

    Hi

    I used Samsung S9 (Mali-G72, OpenGL ES 3.2 r9p0).

    I Implement a method to copy current pixel to a image.

    I use Framebuffer Fetch to read pixel, then I use Image Store (not atomic) to a image.

    And It will process a Dual Filter (Down-Up Sample) to…

    • Answered
    • over 2 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Note 5 - still struggling for performance (GLES2.0, Java app)

    Peeling
    Peeling

    For the best part of a year, on and off, I've been trying without success to get some semblance of decent performance out of some of our Android test devices.

    The Note 5 has been particularly reluctant to give up the goods. I've multithreaded our…

    • over 2 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Understanding max texture size on Android

    Valerio Santinelli
    Valerio Santinelli

    Dear Sirs,

    I am currently trying to understand why I'm not able to load certain bitmaps into an Android ImageView. The current test target is a Huawei M2-A01W that has a Mali T-628 MP4 chip on board. When checking the maximum texture size through a simple…

    • Answered
    • over 2 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Using Mali with an RTOS

    42Bastian Schick
    42Bastian Schick

    We have a request to support Mali with our RTOS. Is it possible to receive the DDK sources so we can adapt it?

    The chip in question is a Xilinx MPSoC+

    • over 3 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Floating point precision of Fragment Shader in Mali-400 MP2

    Rakesh Roy
    Rakesh Roy

    Hi,

    I am aware that "mediump" in fragment shader of Mali-400 MP2 is FP16.
    Is it bit exact with IEEE 754 half precision format https://en.wikipedia.org/wiki/Half-precision_floating-point_format or it uses different FP16 format?

    Please confirm.

    Regards…

    • Answered
    • over 2 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • a problem with texture2D on Mali gpu, opengl es 2.0

    lxxxxxq
    lxxxxxq

    there is a common 4 channel per byte texture, used as an offset map. Which means, r and b channel act as x-axis offset, g and a channel act as y-axis offset. so I need to convert a float [-1, 1] into two bytes, and restore it somewhere after.

    It works…

    • over 2 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • OpenGL ES 2.0: glDrawArrays(GL_LINES, ) drawing problem on Mali-T830 GPU

    Andrey Geets
    Andrey Geets

    Hello Mali developers!

    I have Samsung Galaxy J7(2016) device with Mali-T830 GPU.

    The simple code with drawing of line list causes some graphics artifacts, i changed code from QT example hellogl2.

    Code:

    static const char *vertexShaderSource =  

    …
    • Answered
    • 10827.zip
    • over 3 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Blit multisample GLSurfaceView to MediaCodec input surface in Android

    Alexander Obuschenko
    Alexander Obuschenko

    Hello,

    I'm trying to blit multisample GLSurfaceView to MediaCodec-provided input surface. Unfortunately, the target surface remains black. When I remove multisampling everything works fine. The multisampling setup is done using a subclass of GLSurfaceView…

    • over 1 year ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Wher ts the Midgard T720 MALI userspace driver for linux available?

    Yaroslav-Korchevsky
    Yaroslav-Korchevsky

    I build a system based on Allwinner H6 SoC which is ARM Cortex A53 core + MALI T720

    My project requires GPU: OpenGL ES and OpenCL So I need libMali.so GPU driver for MALI T720
    On product page developer.arm.com/.../user-space
    I didn't fiund corresponding…

    • Answered
    • over 1 year ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Mali Graphics Debugger - GL Vendor,Renderer,Version all Unknown

    Graedus
    Graedus

    Hi.

    Just installed the Mali Graphics Debugger and I'm trying to use it with an Orange Pi One (Mali400-MP2) running Armbian but the daemon can't recognize the driver

    Followed the instructions and installed mgddaemon. When I run it got the messages…

    • over 3 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Will there be EXT_buffer_storage support at all?

    degasus
    degasus

    Hi, I'm a developer of the dolphin emulator. We have asked for EXT_buffer_storage support for over three years now, and we were told that you are working on it: https://community.arm.com/graphics/f/discussions/4645/gl_ext_buffer_storage-support/161…

    • over 2 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Problem with current Mali version

    Tom Gerard
    Tom Gerard

    After upgrading my Windows 7 installation of Mali to version 2.1 using the installer, multisampling doesn't work anymore for my application beside the program successfully choosing a configuration that supports it. I also get lots of bad allocs. Any ideas…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Mesh buffer binding error?

    Robin Ebser
    Robin Ebser

    What does "Mesh buffer binding error: mCurrentBuffer = 2, binded buffer = 0" mean?

    I get this error in my android app, followed by __egl_set_error:121: [WARNING]Mali EGL errorcode: 300d (which should stand for EGL_BAD_SURFACE)

    Unfortunately,

    …
    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Optimal Screen size for Mali 450

    Jerome Decamps - 杜尚杰
    Jerome Decamps - 杜尚杰

    What is the screen size after you most suited to MALI 450 mp ?
    Of course it can support 1080p . But I think that the processor will be more comfortable with a 720p right ? refresh screen  can be more improved in 1080p ?

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • arm based utility program to adjust brightness?

    rob
    rob

    Running a Mali-450 based droid 4.4.2 version on a media dongle using xbmc but video is too dark compared to displaying same source on same tv via different device.

    I found the xbmcand kitkat brightness / contract has no impact on the video output.

    Is…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Mali-450 MP6 problem

    liucloud
    liucloud

    Hi;

         I buy a odroid-c1(the cpu is amlogic s805) which the GPU is Mali-450 MP4 and the os is ubuntu .I port the Mali driver on the Amlogic s802 which the GPU is Mali-450 MP6 and I run the Ubuntu os. The s802 can setup normally. The…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • PixMap Surface slower and slower, why?

    Акоб
    Акоб

    Hi everyone.

    I am using Mali-400 GPU, on Allwinner A20, under linux.

    I am using egl pixmap surface. Rendering results correct, but every time when i calling glDraw with the same  parameters, the runtime of glDraw(only last) slower and slower.

    I am checking…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Is it possible to short-circuit a submitted draw based on time

    Sean Lumly
    Sean Lumly

    This is an interesting question: Is it possible to query a timestamp and in doing so, determine if vertex/fragment shaders should return prematurely, thus rushing to the end of the drawcall if a particular time has elapsed? Put another way, can we use…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Failed to create 4096x4096 texture on Mali-400. The app crashes.

    Somabha
    Somabha

    Failed to create 4096x4096 texture on Mali-400. The app crashes. What can be wrong?

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
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