[Mesa-users] need help! radeonsi si_is_format_supported yv12 buffer support

[ifquant]

Hi,all


i am trying support yuv12 buffer for (GFX9,GFX10,  vega64,vega56,rx580) 
when i modify code  gralloc_drm_pipe.c  and try to  alloc YUV12 buffer for app.
pm->screen->is_format_supported(pm->screen, YUV12,PIPE_TEXTURE_2D) return  not support,
could you give me some help or more information about radeonsi support yv12 buffer?


attachment  is my app test code.    it will try to pipe_alloc  a yv12 buffer, and copy yv12 data to it, and swapbuffer.
but i found radeonsi (mesa drivers for amd gpu) return not support yv12 format.


the detail radeonsi code is:


input:  usage = (PIPE_BIND_SHARED|PIPE_BIND_LINEAR|PIPE_BIND_SAMPLER_VIEW)
intput: format= 0x32315659 ;(PIPE_FORMAT_YV12)


static bool si_is_format_supported(struct pipe_screen *screen,
                   enum pipe_format format,
                   enum pipe_texture_target target,
                   unsigned sample_count,
                   unsigned storage_sample_count,
                   unsigned usage)
{
    //PIPE_BIND_SAMPLER_VIEW不支持
    si_is_sampler_format_supported {
      if chip_class >= GFX10( vega56=GFX9,rx580=GFX8,vega64=GFX9)
    gfx10_format_table.h {
/* PIPE_FORMAT_YV12 is not supported */
/* PIPE_FORMAT_YV16 is not supported */
/* PIPE_FORMAT_IYUV is not supported */
/* PIPE_FORMAT_NV12 is not supported */
/* PIPE_FORMAT_NV21 is not supported */
}
     
    si_translate_texformat//return not support PIPE_BIND_SAMPLER_VIEW
}
    //PIPE_BIND_SHARED 
    si_is_colorbuffer_format_supported {
si_translate_colorformat!=V_028C70_COLOR_INVALID
si_translate_colorswap!=~0U
//} return not support PIPE_BIND_SHARED 


}










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ifquant
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ifquant at 163.com
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