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TDA4VM: Linux: (1076) PVR:(Error): Detected Feedback loop using texture ID 9, decompressing [ :7139 ]

someting77 wu
Prodigy 170 points

Part Number: TDA4VM

Dear  expert, 

  I porting my surround view  app in ti-processor-sdk-rtos-j721e-evm-07_03_00_07 (linux vision), when I call  

glBindFramebuffer(GL_FRAMEBUFFER, disp_fboid);

glActiveTexture(GL_TEXTURE0+index);
glBindTexture(pTexture->type, pTexture->texid);

 glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, pTexture->texid, 0),

disp_fboid is create by appEglBindFrameBuffer(utils/opengl/src/a72/app_gl_egl_utils_linux.c), for some textures , the follow Error Log print out, why this log print out, how to fix this bug

(1076) PVR:(Error): Detected Feedback loop using texture ID 9, decompressing [ :7139 ]

Thanks!

  • +1
    TI__Expert 8385 points

    Hello,

    This error is harmless. It just means that the applicationis attaching a level of a texture to an FBO that is backed by the same texture (as a the draw surface in this case). This is the feedback loop. This does not work with frame buffer compression and hence the warning. Please ignore this if everything else is okay.

    Regards

    Hemant