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Mali 400 dumb questions

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 formats Mali 400 support? (in  RGB and YUV )

3. What are all the frame-buffer output formats does Mali 400 support? (in  RGB and YUV)

Thanks,

Ravinder Are

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  • 0

    Hi Ravinder,

    The Mali-400 GPU supports up to OpenGL ES 2.0.

    There are no compressed texture formats that are core in GLES2.0, however we do support ETC1 format for compressed textures.

    As for uncompressed, we support the formats described in the spec. Please look at the glTexImage2D man page for details.

    Regarding YUV support, this depends on the version of the DDK you have.

    Assuming Android...

    For input format support, using the GL_OES_EGL_image_external extension:

    r3p0:

    • HAL_PIXEL_FORMAT_YV12
    • HAL_PIXEL_FORMAT_YCrCb_420_SP

    r4p1-01rel0:

    • HAL_PIXEL_FORMAT_YCbCr_420_SP
    • HAL_PIXEL_FORMAT_YCbCr_420_P
    • HAL_PIXEL_FORMAT_YCbCr_422_I

    r7p0:

    • HAL_PIXEL_FORMAT_Y8
    • HAL_PIXEL_FORMAT_Y16

    For output format support:

    Render to texture, FBO - r7p0 - All of the above mentioned YUV formats.

    EGL recordable, Render to framebuffer:

    r3p0:

    • HAL_PIXEL_FORMAT_YV12

    r4p1-01rel0:

    • HAL_PIXEL_FORMAT_YCrCb_420_SP

    r5p1-01rel0:

    • HAL_PIXEL_FORMAT_YCbCr_420_SP

    r7p0:

    • HAL_PIXEL_FORMAT_YCbCr_420_P
    • HAL_PIXEL_FORMAT_YCbCr_422_I

    I hope that helped in answering your questions.

    Kind Regards,

    Michael McGeagh

Reply
  • 0

    Hi Ravinder,

    The Mali-400 GPU supports up to OpenGL ES 2.0.

    There are no compressed texture formats that are core in GLES2.0, however we do support ETC1 format for compressed textures.

    As for uncompressed, we support the formats described in the spec. Please look at the glTexImage2D man page for details.

    Regarding YUV support, this depends on the version of the DDK you have.

    Assuming Android...

    For input format support, using the GL_OES_EGL_image_external extension:

    r3p0:

    • HAL_PIXEL_FORMAT_YV12
    • HAL_PIXEL_FORMAT_YCrCb_420_SP

    r4p1-01rel0:

    • HAL_PIXEL_FORMAT_YCbCr_420_SP
    • HAL_PIXEL_FORMAT_YCbCr_420_P
    • HAL_PIXEL_FORMAT_YCbCr_422_I

    r7p0:

    • HAL_PIXEL_FORMAT_Y8
    • HAL_PIXEL_FORMAT_Y16

    For output format support:

    Render to texture, FBO - r7p0 - All of the above mentioned YUV formats.

    EGL recordable, Render to framebuffer:

    r3p0:

    • HAL_PIXEL_FORMAT_YV12

    r4p1-01rel0:

    • HAL_PIXEL_FORMAT_YCrCb_420_SP

    r5p1-01rel0:

    • HAL_PIXEL_FORMAT_YCbCr_420_SP

    r7p0:

    • HAL_PIXEL_FORMAT_YCbCr_420_P
    • HAL_PIXEL_FORMAT_YCbCr_422_I

    I hope that helped in answering your questions.

    Kind Regards,

    Michael McGeagh

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