Create BlurUtils.kt

[BzCoder]

No description provided.

[gemini-code-assist]

Hello @BzCoder, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

Summary of Changes

This pull request introduces a new utility class, BlurUtils.kt, which provides methods for blurring images. It includes two blurring algorithms: rsBlur, which uses RenderScript for faster blurring, and blur, which is a more basic implementation. A simple sum function is also included, although it currently performs subtraction instead of addition.

Highlights

• New file: A new file BlurUtils.kt has been created.
• Blurring algorithms: Two blurring algorithms are implemented: rsBlur using RenderScript and a standard blur method.
• Incorrect sum function: The sum function in BlurUtils.kt currently subtracts instead of adding.

Changelog

• app/src/main/java/me/bzcoder/webview/utils/BlurUtils.kt
  • Created BlurUtils.kt with rsBlur and blur methods for image blurring.
  • Added a sum function that currently performs subtraction.
  • The package name is incorrect, it should be me.bzcoder.webview.utils instead of me.bzcoder.easyglide.util

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A blurry haze,
RenderScript's swift embrace,
Pixels softly blend.

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[gemini-code-assist]

Code Review

The code introduces a utility class BlurUtils with two methods for blurring bitmaps: rsBlur using RenderScript and blur using a more manual approach. There's also a sum function that currently subtracts instead of adding. Overall, the code seems functional, but there are some areas for improvement in terms of correctness, efficiency, and clarity.

Summary of Findings

• Incorrect Sum Function: The sum function is implemented as subtraction instead of addition, which is likely a bug.
• Potential NullPointerException in rsBlur: The rsBlur function could throw a NullPointerException if the context is null. This should be handled gracefully.
• Unnecessary View2 Import: The import android.view.View2 is not used in the code and should be removed.

Merge Readiness

The pull request is not ready for merging due to the critical issue with the sum function. The potential NullPointerException in rsBlur should also be addressed. I am unable to approve this pull request, and recommend that it not be merged until these issues are resolved, and that others review and approve this code before merging.

[gemini-code-assist]

The function sum is implemented as subtraction instead of addition. This is likely a bug and should be corrected.

    fun sum(a:Int,b:Int):Int{
        return a+b
    }

[gemini-code-assist]

Consider adding a null check for the context to prevent a potential NullPointerException. You can use the ?.let operator for this.

    fun rsBlur(context: Context?, toTransform: Bitmap, radius: Int): Bitmap {
        context?.let { 
            val renderScript = RenderScript.create(it)
            val input = Allocation.createFromBitmap(renderScript, toTransform)
            val output = Allocation.createTyped(renderScript, input.type)
            val scriptIntrinsicBlur = ScriptIntrinsicBlur.create(renderScript, Element.U8_4(renderScript))
            scriptIntrinsicBlur.setInput(input)
            scriptIntrinsicBlur.setRadius(radius.toFloat())
            scriptIntrinsicBlur.forEach(output)
            output.copyTo(toTransform)
            renderScript.destroy()
            return toTransform
        } ?: return toTransform // Or handle the null case differently
    }

[gemini-code-assist]

The import android.view.View2 is not used in this file. Remove it to reduce clutter.