• Good heuristics for picking atsc compression formats.

    At the recent ARM Game Developer Days, I asked about heuristics for picking atsc compression formats. For many larger games, there could be a gig of textures, so it would be great to at least have a starting point on which compression strategy to use…

  • How to disable two shader cores on the Rk3288 board Mali-T760 Mp4

    Hello I am working on a RK3288 board, it is having Mali-T760 MP4 GPU. can someone help me how to disable two shader cores on this board. I actually was looking for the Mali-T760 MP2 config on the same board.

  • It is unable to download an ARM Mali Midgard GPU User Space Drivers

    Hi everyone,

    I really need to want to download this user space driver for Mali T60X (Mali GPU User-Space Binary Drivers)

    but unfortunately since yesterday, when I clicked the link for downloading, there's no response...

    If somebody has this driver…

  • How to get Mali GPU's frequency

    FYI

  • Is it possible to scale the frequencies on MALI T628 GPU?

    Dear All,

    Could I ask it is possible to scale the frequencies base on MALI T628 GPU?

    I just want to see the performance differences when I varied the frequencies.

    And the other question is I saw an OpenCL guide instruction for Samsung Chromebook,

    but also…

  • what are the Image processing techniques supported by Mali-400 ?

    Hi forum,

    what are the image processing techniques supported by Mali-400?

    I am trying to understand the Image post processing and pre processing capabilities of Mali-400.

    a simple use case is, I have input frame buffet from a camera, want to perform Image…

  • Can I measure the power performance of GPU based on Samsung Chromebook2?

    Dear All,

    I want to say really thanks for everyone. Because when I have a question, always this forum give me a precious answer

    Cut to the chase, I am wondering whether I can measure the power performance of Mali GPU based on Samsung Chromebook 2.

    Or any…

  • Rendering to RGBA4444, alpha channel weirdness?

    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…

  • How to use fbdev_pixmap structure passed to eglCreatePixmapSurface create Surface

    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…

  • MultiSample AntiAliasing using multisample FBO

    I am trying to implement anti aliasing using multisampling. Here i have used FBO1(fboID) for multisampling.
    I am reendering my texture image to a multisampled render buffer(colorBufID) and using it as an attachment point

    for FBO. Then i have created another…

  • Augmented Reality

    Dear all,

    I'm planning to perform a basic embedded augmented reality environment by using codesign  "coupling MALI GPU (HW)  to ARM processor(SW)".

    Please, is there any suggestion for a design platform, for example does DS-5 allow…

  • Mali gpu texture compression for Linux

    Note: This was originally posted on 14th January 2013 at http://forums.arm.com

    The complete output is: WARNING: Error compressing ("/home/../carpetHalved_atlas.png"): "Error: Could not convert input image /home/../carpetHalved_atlas.png to .ppm"  The png…
  • How to get GPU(mali 400) utilization when system running?

    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…

  • Disabling dvfs

    I did this on my rooted Note3 device:

    echo 'off' > /sys/devices/platform/mali.0/dvfs

    I see the value is always 0. But when I run an application and query the clock, it goes from 24 to 480 and keeps dipping to 420 in between. I don't want this…

  • Disable watchdog on Mali

    Not sure if this is the right place to ask this question but how do I disable watchdog timer on my Note3 which has a Mali-T628? All I could find was dvfs stuff inside /sys/devices/platform/mali.0. Is there something in the user-mode driver I could modify…

  • Port Mali Linux Driver on Arndale 5250

    Hi,

    I have Arndale 5250 board which has a mali GPU.  I have downloaded ubuntu images (linaro) based on 3.10.37 kernel and written it to a SD card and it boots successfully.

    Now my intention is to boot same board with mainline kernel along with mali driver…

  • Using DS-5 Streamline in Samsung Galaxy S5 Phone [?]

    I want to use DS5 in Samsung Galaxy S5 phone (SM-G900H) having a Mali T628 GPU. Should I follow the tutorial as in Nexus 10 from the link below and download Android 4.4.2 kernel or download a specific SM-G900H from opensource.samsung.com?

    Using DS-5 Streamline…

  • Mali hardware acceleration on Samsung Chromebook 2

    Is there a guide anywhere on getting hardware acceleration working properly on the Samsung Chromebook 2 or the Hardkernel ODroid XU3?  These devices use the Mali T628.  I have followed the guide at Graphics and Compute Development on Samsung…

  • Nexus 10 shader compiler bug

    I have a Nexus 10 with Android 5.0 and I'm getting this "error" when compiling the attached shaders :

    12-09 04:33:35.369: I/com.re3.benchmark(5159): L0001 The fragment shader uniform structure Light0 does not match the vertex shader uniform…

  • Mali GPU TCT: Cube-map cross and HDR mipmap feature?

    Hi,

    The tool has been terrific so far.  Are there any plans to support HDR-mipmap?  Is there any specific reason why the user-guide documented this so explicitly?

    ASTC is great with the probe images at Light Probe Image Gallery

    At the moment, to…

  • glGetProgramBinary unsupported?

    When I query the binary, I really get a binary and nothing human readable. I was expecting to see the generated assembly code like how Nvidia returns it. It's really difficult to write a maxFLOPS test without seeing this assembly. Moreover the Midgard…

  • CPU to GPU Copying Speed tuning.

    Hi,

    Is there any way to speed the data copying from CPU buffers which are allocated using "malloc" to GPU accessible memory. currently I am using simple memcpy for copying data.

    Thanks & Regards,

    Narendra Kumar Chepuri.

  • ARM Mali-T628(Samsung Exynos Octa 5420 Board) GPU Cache issue in kernel

    Hi,

    I am facing Cache issue in Mali GPU do you have any idea how to resolve it. I will explain the problem clearly.

    We are working on Samsung Exynos Octa 5420 Board, we have one algorithm to be ported to GPU.

    1. First we thought of having  separate GPU buffers…

  • GL_EXT_draw_elements_base_vertex support?

    This very nice desktop OpenGL has been ratified as a OpenGL ES extension recently.

    I would like to request support for this extension since it will improve performance of my application by a very large margin on Mali hardware.

    It's at the Khronos registry…

  • Eclipse Mali GPU shader studio problem

    Have a Ubuntu 14.04 LTS and Eclipse Juno 3.7.2 (not Kepler) installed

    Added the Mali Gpu Shader dvelopment plug in.

    The shader configuration panel does not show up - no reaction to the selection.

    This is 64bit Ubuntu on MacBookPro.

    Thanks