• FIR Filter on Mali 400

    Акоб
    Акоб

    Hi everyone.

    We are trying to use mali 400 GP2 for real time audio processing. Audio data is signed short(16 bit).

    We implemented FIR filter, but it work very slow for real time processing.

    We have some problems to raise productivity.

    Data loading and writing…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Rendering using OpenGL ES 2.0/3.0 in a zero copy mode on MALI T628

    andrea
    andrea

    Hi

    I am looking for example / articles on how to perform updates to an Open GL ES texture (without using low Performing glTexSubImage2D approach) in a zero copy approach.

    I am currently focused on odroid XU3 with MALI  T628 running ubuntu.

    I studied…

    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Mali cannot initialize EGL

    Lester Rodriguez
    Lester Rodriguez

    Sending an SOS to anyone out there.

    I am new to OpenGL ES 3.0 for Windows.

    I have already installed Visual Studio 2013, cMake and Mali.

    My issue:

    EGL cannot be initialized.

    This is the error I get:

    eglGetError<> =12289 at line 413 of cube.cpp

    I installed…

    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • glTexImage2D memory leak

    Igor
    Igor

    Hello Everyone! I have a question about function glTexImage2D.

    There is some code that cause GL memory leak on the devices with mali gpu (t760) and force close android application.

      ....

        struct Vertex

        {

            …

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Problems with alpha mask using ETC1 textures

    Mark Silv
    Mark Silv

    Hello,

    I'm having a problem when creating textures with the Mali texture compression tool. I'm following this Mali tutorial to create a separate alpha mask that handles the alpha channel from an ETC1 texture using Method 2 as described. I managed…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Why eglGetDisplay(EGL_DEFAULT_DISPLAY) returns EGL_NO_DISPLAY (Mali EGL & fbdev SDK drivers)

    Peter Carragher
    Peter Carragher

    Im trying to build a framework using OpenGL|ES 3.0 and EGL 1.5 with an ARM Mali T-600 series chip. The ARM Mali EGL/GLES sdk states that the system supports gles 3.0 and over though their fbdev driver (x11 doesnt work apparently).

    However, despite everything…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • God Ray effect (light scattering) with Mali GPU

    Thanh Vu
    Thanh Vu
    Note: This was originally posted on 10th May 2012 at http://forums.arm.com

    Hello everyone,

    I'm implementing the God Ray effect for an Android game on Mali-400 based devices (here is Samsung I9100 and Samsung I9300).
    I've followed this article http…
    • Answered
    • over 7 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Why when you press download Mali OpenGL ES 3.0 SDK for Android downloaded Mali Graphics Debugger?

    Sergey
    Sergey

    Hi everyone

       Who can explain why when I try to download Mali OpenGL ES android sdk 3.0

    33.png34.png

      I suggest to download Mali Graphics Debugger v2.1

    35.png

      Can someone help me and tell me where to download Mali OpenGl Es android sdk 3.0? Thank you all…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • create errors when I build the Mali™ GPU User Interface Engine

    Larry
    Larry

    Hello ,everyone

    I have a problem when I make the code of Mali™ GPU User Interface Engine which I download today.

    my system is ubuntu 14.0  --32bit .And I had install the Xlib by apt-get install libX11-dev

    after I enter the command :

    make all CONFIG…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Issue with half float vertex attribute/varying with OpenGL ES on Mali-T628

    Timo Suoranta
    Timo Suoranta

    When I pass half float vertex attribute directly (unmodified) to a varying, I get incorrect values in the fragment shader.

    This works:

    vTexCoord = vec2(1.00001 * TextureCoordinate0.x, 1.0001 * TextureCoordinate0.y);

    This does not work:

    vTexCoord = vec2(TextureCoordinate0…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Generate errors when I compile the mali-400 kernel drivers .

    Larry
    Larry

    Hello ,everyone

    I meet some problems when I compile the mali-400 kernel drivers

    I copy the mali0400 drivers to the linux kernel and config the linux kernel .but when I compile the kernel the compiler just generate errors

    -------------------------------…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Issue with half float vertex attribute/varying with OpenGL ES on Mali-T628 (private)

    Timo Suoranta
    Timo Suoranta

    Hi,

    Attached is APK that reproduces half float texture coordinates being rendered incorrectly, after one correct frame.

    • The sphere on the left is affected, however, cube on the right is not affected.
    • The issue goes away if vertex shader modifies texture…
    • HalfFloatTexCoord-release.apk.zip
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • GL_OES_EGL_image_external with GLSL 3.0 shader and GLES 3.0 context?

    Stephane Jacoby
    Stephane Jacoby

    Hello Mali driver devs,

    It appears the GLSL 3.0 compiler doesn't support GL_OES_EGL_image_external extension, required by Android 3.0+ for use with SurfaceTexture. Recompilation for #version 100 instead of #version 300 es resolves the issue. GL_OES_EGL_image_external…

    • Answered
    • over 6 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • [xcb] Most likely this is a multi-threaded client and XInitThreads has not been called

    magic0se
    magic0se

    I was build drivers r4p0 for Orange Pi 2 (Allwiner H3 soc)

    And now get the error.... with runing es2_info

    [xcb] Unknown request in queue while appending request

    [xcb] Most likely this is a multi-threaded client and XInitThreads has not been called

    [xcb]…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • DP500 + Software Rendering Question

    JayC
    JayC

    Dear Experts,

    We are trying to solve an issue where we see at Android startup, each frame takes a long time to display i.e. frame rate is slow. With a debug enabled mali driver, we see that rendering is taking a long time compared to display - we can make…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Does mali-T760 support high precison for fragment shader?

    lxb0478
    lxb0478

    I didn't find any official doc for this.

    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • YCbCr (NV12) texture scaling using r5p1 drivers on Mali400

    Ilyes Gouta
    Ilyes Gouta

    Hi,

    I have a use-case where NV12 video frames are imported as GL texture (using EXT_image_dma_buf_import, dma_buf) and would like to down-scale the said texture into also a destination NV12 buffer (render target). The destination NV12 buffer will hold…

    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • chain calculations slow down sharply as the items became large

    phenix
    phenix

    hi,all,

    I have got a problem when run opengles shader on mali-t760 gpu. In the fragment shader i calcuate the color as follow:

        vec4 color = (((((Coef5*color+Coef4)*color + Coef3)*color+Coef2)*color + Coef1)*color+Coef)*color;

    this formule…

    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • glEGLImageTargetTexture2DOES does not set properly the state of an attached framebuffer

    Boian Petkantchin
    Boian Petkantchin

    Hi,

    I have recently encountered a problem with OpenGL/EGL on ARM Mali 450, Android 4.4.2. In my opinion this is a bug.

    I have the following setup. A texture with no storage and a frame buffer attached to the texture. An EGLImageKHR is set as the texture…

    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Basic Graphics Questions , How GPU works and achieves Parallesim.

    Ravinder
    Ravinder

    Dear Experts,

    I have some basic graphics questions here, my interest is basically with ARM MALI 400 MP2.

    Please provide your inputs

    1. Open VG/GL/GLES APIs generates any commands for GPU(VP and PP) to process? Are they defined by Khronous?
    2. Is every Open VG…
    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Mali 400 dumb questions

    Ravinder
    Ravinder

    Dear ARM forum,

    I am writing a OpenGLES2.0 based graphics application.

    I am trying to find some quick answers to my questions.

    1. what are all the compressed Texture formats Mali 400 support? (in  RGB and YUV )

    2. what are all the uncompressed Texture…

    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Mali Graphics Debugger - do we need to specify OpenGL ES version?

    Francesco R
    Francesco R

    Dear ARM Mali Graphics community,

    I am a newbie to OpenGL ES & android programming and I am currently trying to figure out why an application is not rendering (at all) on an android 4.4 tablet with MALI 400 MP GPU, even though is reported to work fine…

    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • YUV scaling using maliT760

    jitender
    jitender

    I want to know  whether T760 HW supports processing YUV frames directly (input YUV, and output YUV), and what YUV formats (e.g., NV12, NV21, YV12, etc.) are supported.

    The intended use cases for this could be that the camera SW stack uses GPU for post…

    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Using glEGLImageTargetTexture2DOES with OpenGL ES 3.0 Emulator

    Alexey
    Alexey

    Hi,

    I'm writing a multi-thread app that using OpenGL ES 3.0 Emulator libraries on Windows.

    Why am I seeing "FATAL - Emulator IEGLImage implementation does not support sharing EGLImages accross contexts that are not related to each other" on the stdout…

    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Draw a bimap in opengles with Mali-400 mp2

    david
    david

    Hi everyone:

        I'm new to Mali Graphic.Recently,I want to draw a bitmap in opengles with sc7731g efficiently.I learn that sc7731g consists of Mali-400 mp2.I was wondering if mp2 means the Mali400 mp2 has two fragment processor.I find that Mali400 and…

    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
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