# AndroidFramebufferScreenshot

**Repository Path**: codeing_q/AndroidFramebufferScreenshot

## Basic Information

- **Project Name**: AndroidFramebufferScreenshot
- **Description**: No description available
- **Primary Language**: Assembly
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 2
- **Created**: 2021-07-01
- **Last Updated**: 2022-09-16

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

AndroidFramebufferScreenshot
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Take screenshot in jni, return byte array to java, decode and display in ImageView.

Only works in rooted devices!



Performance
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Take a 1280 * 720 jpeg from framebuffer cost about 150 - 180 ms (done with turbo-jpeg!).




Build jni
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Use this command to build the so file to use Arm Neon Assembly:
  ndk-build APP_ABI=armeabi-v7a LOCAL_ARM_MODE=arm LOCAL_ARM_NEON=true ARCH_ARM_HAVE_NEON=true



On working
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User Neon simd assembly to scale down image raw data.