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Graphics Composer and the Display Modules

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  • 4dTechSupport
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    Q07. I have partitioned a uSD card in to FAT and nonFAT (Raw). I am using "uSD Raw" Build Type. What should I set the Sector Offset to?

    Ans. If you are using a partitioned uSD card (FAT and nonFAT), the Graphics Composer will write the images/videos to the Raw area with the "uSD Raw" Build Type. Sector offset is from the start of existing Raw partition.

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  • 4dTechSupport
    replied


    Q06. I have partitioned a uSD card in to FAT and nonFAT (Raw). I am using "4DGL, SGC Picaso - uSD Raw - GCI at Specified Offset" Build Type. What should I set the Sector Offset to?

    Ans. If you are using a partitioned uSD card (FAT and nonFAT), the Graphics Composer will write the images/videos to the Raw area with the "4DGL, SGC Picaso - uSD Raw - GCI at Specified Offset" Build Type. Sector offset is from the start of existing Raw partition.

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  • 4dTechSupport
    replied


    Q05. Can I use 8bit Colour mode for images/videos in the Graphics Composer?

    Ans. No, you cannot use 8bit Colour mode. It's not supported by GOLDELOX-SGC, GOLDELOX-GFX2, PICASO-SGC and PICASO-GFX2 processors.

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  • 4dTechSupport
    replied


    Q04. What is the format of a video written to the uSD card through the Graphics Composer?

    Ans. The video format is as follows,

    Header (8 bytes as 4 words)
    word1 (Hi:Lo) = width : horizontal size of the image
    word2 (Hi:Lo) = height : vertical size of the image
    Byte5 = colour_mode : 16dec = 65K colour mode, 16bits/2bytes per pixel (msb, lsb)
    Byte6 = If frame delay is 0 it’s just an image not a movie.
    word4 (Hi:Lo) = No. of frames, only present if it’s video.

    The header is then followed by the pixel data,

    Pixel1…PixelN: 1st Frame pixel data and N is the total number of pixels
    N = height x width when colour_mode = 0
    N = height x width x 2 when colour_mode = 1
    Pixel1…PixelN: 2nd Frame pixel data and N is the total number of pixels
    N = height x width when colour_mode = 0
    N = height x width x 2 when colour_mode = 1
    Pixel1…PixelN: Last Frame pixel data and N is the total number of pixels
    N = height x width when colour_mode = 0
    N = height x width x 2 when colour_mode = 1

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  • 4dTechSupport
    replied


    Q03. What is the format of an image written to the uSD card through the Graphics Composer?

    Ans. The image format is as follows,

    Header (6 bytes as 3 words)
    word1 (Hi:Lo) = width : horizontal size of the image
    word2 (Hi:Lo) = height : vertical size of the image
    Word3 = colour_mode : 16dec = 65K colour mode, 16bits/2bytes per pixel (msb, lsb)

    The header is then followed by the pixel data
    Pixel1…PixelN: Image pixel data and N is the total number of pixels
    N = height x width when colour_mode = 0
    N = height x width x 2 when colour_mode = 1

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  • 4dTechSupport
    replied


    Q02. Which video file formats are supported by the Graphics Composer?

    Ans. Following video file formats are supported,

    -wmv
    -avi
    -vob
    -mpg

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  • 4dTechSupport
    replied


    Q01. Which image file formats are supported by the Graphics Composer?

    Ans. Following image file formats are supported,

    -jpg
    -bmp
    -gif
    -ico
    -wmf
    -png

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  • 4dTechSupport
    started a topic Graphics Composer and the Display Modules

    Graphics Composer and the Display Modules

    This section of FAQ for "Graphics Composer and the Display Modules" covers all the frequently asked questions related to Graphics Composer and
    1. PICASO-GFX2 processor (and related Display Modules)
    2. GOLDELOX-GFX2 processor (and related Display Modules)
    3. PICASO-SGC processor (and related Display Modules)
    4. GOLDELOX-SGC processor (and related Display Modules)
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