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How can i use ASTC in Emulator_v1.2

jooyoung jung
Note: This was originally posted on 21st May 2013 at http://forums.arm.com

Hi.


i don't know astc load.

i tryed  as follows.

step1 . PNG file compressed using Mali_Compress_tool  (  768X512 PNG file   ->  Very fast   block: 4X4 Low Dynamic Range   ) 
              Output file:    test.astc

step2.  Using glCompressedTexImage2D(GL_TEXTURE_2D, 0, GL_COMPRESSED_RGBA_ASTC_4x4_KHR, 768, 512, 0, astc_size, imageData)
                        [size=2]GL_CHECK(glTexParameteri(target, GL_TEXTURE_WRAP_S,     GL_CLAMP_TO_EDGE));[/size]
   GL_CHECK(glTexParameteri(target, GL_TEXTURE_WRAP_T,     GL_CLAMP_TO_EDGE));
   GL_CHECK(glTexParameteri(target, GL_TEXTURE_MAG_FILTER, GL_LINEAR));
   GL_CHECK(glTexParameteri(target, GL_TEXTURE_MIN_FILTER, GL_LINEAR));

astc_size :  file size
                FILE *f = fopen(filename, "rb");

  fseek(f, 0L, SEEK_END);
  astc_size = ftell(f);
  fseek(f, 0L, SEEK_SET);
[size=2]
[/size]
[size=2]imageData[/size][size=2]    :  [/size]

   [size=2]imageData[/size][size=2]    [/size]= (unsigned char*) malloc(size);
  fread([size=2]imageData[/size][size=2]    [/size], astc_size , 1, f);


error occurs in the [size=2]glCompressedTexImage2D[/size]
[size=2]
[/size]
[size=2]How can i load ASTC file?[/size]
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  • Note: This was originally posted on 24th May 2013 at http://forums.arm.com

    Hi Jooyoung,

    Sorry to hear you're having trouble. A few questions:

    Can you let us know what the error returned by glGetError() is?
    Also your snippet is incomplete, so can you confirm that the texture has been generated, bound, and no errors have occured up to the glCompressedTexImage2D call?

    Thanks,
    Chris
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  • Note: This was originally posted on 24th May 2013 at http://forums.arm.com

    Hi Jooyoung,

    Sorry to hear you're having trouble. A few questions:

    Can you let us know what the error returned by glGetError() is?
    Also your snippet is incomplete, so can you confirm that the texture has been generated, bound, and no errors have occured up to the glCompressedTexImage2D call?

    Thanks,
    Chris
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