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Forum Topic - gf_surface_attach returns GF_ERR_OK but img_surf is a NULL pointer.: (4 Items)

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George Refseth(deleted)

01/18/2015 6:26 PM

post112985

gf_surface_attach returns GF_ERR_OK but img_surf is a NULL pointer.

QNX 6.5.0 SP1 

What would cause gf_surface_attach to return GF_ERR_OK, but not create a surface for the 'external' memory?

best regards
George Refseth

Andrey Docuchaev

01/19/2015 7:06 AM

post112992

Re: gf_surface_attach returns GF_ERR_OK but img_surf is a NULL pointer.

Hello George,

What do you mean by "external memory"? Can you please provide a few examples of code?

Best regards
Andrey

George Refseth(deleted)

01/19/2015 8:00 AM

post112993

Re: gf_surface_attach returns GF_ERR_OK but img_surf is a NULL pointer.

Its the gf_splash application - available in several bsp's. Running on an arm-v7 target. Looks like there might be a 
possibility for gf_surface_attach to return ok but not deliver a surface opaque pointer.

Any idea what (can) cause(s) this behaviour?

tia
George

Andrey Docuchaev

01/19/2015 11:05 AM

post112996

Re: gf_surface_attach returns GF_ERR_OK but img_surf is a NULL pointer.

As I understand you trying to show transparent image with gf_splash? To draw image with transparecy this application 
uses gf_draw_blit2() with configured chroma key. Does your driver supports this feature?

Best regards
Andrey

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