• Rendering to RGBA4444, alpha channel weirdness?

    Erik Faye-Lund
    Erik Faye-Lund

    I'm doing rendering of non-color data to an RGBA4444 texture, and I'm seeing some difference in how the output from the alpha channel gets stored in the texture. It seems somehow that the alpha channel gets it's range slightly compressed, leading to higher…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • How to use fbdev_pixmap structure passed to eglCreatePixmapSurface create Surface

    yueliu
    yueliu

    Hi,
    I now use the fbdev window system, I assign a fbdev_pixmap structure configured corresponding content, pass it to eglCreatePixmapSurface function, but get to the error information 0x0000300A
    Such as:
    Error: eglCreatePixmapSurface failed Error: 0x…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • How to get GPU(mali 400) utilization when system running?

    Hank Lin
    Hank Lin

    Hello all,

    My device is samsung S3, and it's GPU is mali 400.

    I want to know the GPU utilization and control GPU frequency when system is running.

    But in /sys/module/mali/parameters, I can't find any file can do this.

    Are there any suggestions??

    Thank…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Mali-400 functioning with software stack running on Cortex-A53 AARCH64 Linux OS.

    Ravinder
    Ravinder

    Dear ARM Forum,


    I am working for a ARM Cortex-A53 + Mali based SOC. I am preparing a demo plan for my platform to show Mali-400 functioning with  software stack running on Cortex-A53 AARCH64 Linux OS.

    Thanks in advance, I hope your Expertise and Experience…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • What is the Linux 3D-Graphics Driver stack with  OpenGLES2.0  supporting for ARM Mali 400 GPU.

    Ravinder
    Ravinder

    Dear Group ,

    Can some one please provide the complete Linux 3D-Graphics stack which use OpenGLES2.0 with ARM Mali 400 GPU.

    I am trying to figure out the existing Linux software components and porting them for Linux 64 bit.

    Please point some nice document…

    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Issue on webgl on a chromium port with Mali 400 GPU.

    Genevet
    Genevet

    Hi,

    I am working on a linux (directfb/fbdev) port of chromium on a set top box platform which has a  Mali-400 GPU.

    I have an issue with an HTML application creating a webgl context in RGB (without alpha).

    After analysis, we can see that chromium creates…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • MALI 4xx on Rockchip?

    Stephane Jacoby
    Stephane Jacoby

    Hello ARM Mali devs,

    We recently released an app that was pretty meticulously tested against different variants of Mali chips. However, post release we have received a wide variety of issue reports on MALi 400/450, mostly paired with Rockchip CPUs (Memopad…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • how to enable all cores of Mali-400 GPU?

    ailen
    ailen

    Hi there,

        We are now transplanting our graphics subsystem onto the sunxi-A20 SoC, whose GPU is Mali-400 MP2. But we find that rendering a frame costs about 33ms, which is too slow. And after we did some study on the driver, we found the cause of low…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Problems during setup Mali Graphics Debugger on Android 4.1

    guozhu
    guozhu

    System Info

    graphics: Mali-400MP, android version: 4.1.1, Mali Graphics Debugger: 2.0

    when I try to setup the Mali Graphics Debugger  on android device following the user guide.

    the libGLES_mgd say it can't load the libGLES_mali.so (because this library…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • mali-400 mp r3p2 driver failed when captureScreen under android 4.4

    guanhb
    guanhb

    We used mali-400 mp r3p2 driver. When captureScreen under android 4.4,  eglClientWaitSyncKHR() always report timeout.

    Actually we capture android screen successfully, and the image can be opened, and exactly what android showing.

    We enable all debug…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Mali-Txxx performance

    marianmi
    marianmi

    Hi,

    I have been using both the X11 and fbdev drivers (r4p0) on an Odroid-XU3 with Mali-T628, the kernel driver integrated by the vendor (Hardkernel) and the binary blob from armdeveloper website.

    The performance was really bad - especially on fbdev, framerates…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Render to portion of a frame

    Boian Petkantchin
    Boian Petkantchin

    I am trying to render to just a rectangular portion of the frame. To my knowledge there are two options for this - glScissors and glViewport.

    When profiling with DS-5 Streamline on both Mali-400 MP and Mali-450 MP, the number of rasterized fragments is…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • What is the GPU/driver doing if not shading?

    Boian Petkantchin
    Boian Petkantchin

    I ran Streamline on the SimpleTriangle example from Mali OpenGL ES SDK for Android v1.6.0. Basically, each frame it renders a triangle, that covers half of the frame. It renders to the default framebuffer. What I observe is, that most of the time is spent…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Mali 400 MP2 Power Consumption

    lajash
    lajash

    Hi guys,

    Is there any documentation on the power consumption of the Mali 400 MP2 during different ops. How does this compare with the Mali 470 ?

    Just curious.

    Regards,

    Rajesh. 

    • Answered
    • over 2 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Mali 400 Utgard GLES/EGL extensions

    lajash
    lajash

    Hi guys,

    I was wondering if the EGL/GL extension list remains the same between the r5p0 and r7p0 releases. I can't seem to find any documentation besides this link ( which says it's for the r5p0 release).

    https://www.google.co.in/url?sa=t&rct…

    • Answered
    • over 2 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Mali 400/450 Fragment shader precision and photo gallery application

    MICHAL LAZO
    MICHAL LAZO

    Hello

    Are there any possible way how to properly(without loss of quality) render photo pictures ( as texture in opengl ) on Mali 400/450 if we have only available 16bit precision fragment shader?

    If I understand it right

    every pixel from my source texture…

    • Answered
    • over 4 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • MALI-400 Low performance on 1080p60fps

    kurocygnus
    kurocygnus

    Hi.
    I have a RK3229 board wich comes with a Mali GPU. I'm using Android 6.0.1 on the board and trying to build my own firmware. I don't know if it's driver's fault or bad configuration but it's not as fast as it should be. Can't even run a 1080p video…

    • Answered
    • over 2 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
  • Mali 450 precision issue: how to detect odd and even columns

    roxlu
    roxlu

    Hi,

    I'm working on an algorithm where I need to detect if the current `gl_FragCoord` is an even or odd row/column. A typical implementation would look something like `if (mod(gl_FragCoord.x, 2.0) < 1.0) { ... } else { ... }`.  After running into…

    • Answered
    • over 2 years 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
  • Can ARM NN run on ARM Mali 400 MP2

    fatimak
    fatimak

    I wanted to find out if the ARM NN supports the ARM Mali 400 MP2 .

    Regards

    Fatima

    • Answered
    • over 1 year ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • Cross-Compile ArmNN on x86_64 for arm64

    fatimak
    fatimak

    Hi ,

    I am looking for someway of using the armNN SDK on a Xilinx Zynq Platform which has Quad-core ARM® CortexTM-A53 MPCoreTM up to 1.5GHz and an ARM MALI 400 MP2 GPU. With ARM Mali GPU noted off in a previous question my next task is to look into if…

    • Answered
    • over 1 year 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
  • ARM Mali(400) graphics support on non-Linux OS.

    Ravinder
    Ravinder

    Dear group,

    As far as I know, ARM Mali graphics stack has availability only on Linux and Android.

    If I want to use it for non Linux OS, what is the solution ?

    Does ARM has any standard solution in this scenario ? Did any one had this problem ?

    Does ARM Mali…

    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
  • eglCreatePixmapSurface for Mali-400 under linux

    Акоб
    Акоб

    Hello everybody.

    I am working on Mali-400 under linux. I want to create pixmap surface, but it always return EGL_BAD_MATCH error.

    Here attribut list wich i use for eglChooseConfig

    EGLint EGLRuntime::configAttributes[] =
        {
            /* DO NOT MODIFY. …
    • Answered
    • over 5 years ago
    • Graphics and Gaming
    • Graphics and Gaming forum
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