fun setSize()

in amazon-chime-sdk/src/main/java/com/amazonaws/services/chime/sdk/meetings/utils/GlTextureFrameBufferHelper.kt [37:78]
36 lines of code
6 McCabe index (conditional complexity)

    fun setSize(width: Int, height: Int) {
        require(!(width <= 0 || height <= 0)) { "Invalid size: " + width + "x" + height }
        if (width == this.width && height == this.height) {
            return
        }
        this.width = width
        this.height = height
        // Lazy allocation the first time setSize() is called.
        if (textureId == 0) {
            textureId = GlUtil.generateTexture(GLES20.GL_TEXTURE_2D)
        }
        if (frameBufferId == 0) {
            val frameBuffers = IntArray(1)
            GLES20.glGenFramebuffers(1, frameBuffers, 0)
            frameBufferId = frameBuffers[0]
        }

        GLES20.glActiveTexture(GLES20.GL_TEXTURE0)
        GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, textureId)
        GLES20.glTexImage2D(
            GLES20.GL_TEXTURE_2D, 0, pixelFormat, width, height, 0, pixelFormat,
            GLES20.GL_UNSIGNED_BYTE, null
        )
        GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, 0)
        GlUtil.checkGlError("Failed to bind texture")

        // Attach the texture to the framebuffer as color attachment.
        GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, frameBufferId)
        GLES20.glFramebufferTexture2D(
            GLES20.GL_FRAMEBUFFER,
            GLES20.GL_COLOR_ATTACHMENT0,
            GLES20.GL_TEXTURE_2D,
            textureId,
            0
        )
        GlUtil.checkGlError("Failed to bind and create framebuffer")

        // Check that the framebuffer is in a good state.
        val status = GLES20.glCheckFramebufferStatus(GLES20.GL_FRAMEBUFFER)
        check(status == GLES20.GL_FRAMEBUFFER_COMPLETE) { "Framebuffer not complete, status: $status" }
        GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, 0)
    }