touchgfx 4.24 and RGB compression: linker error flushline

[SEam72]

Hi,

just activated the compression for my bitmaps (Tgfx V4.24, CubeIDE 1.15.1)

• Touchgfx Designer generates all files fine.
• Simulation on Windows with VS works fine.

Moving to target results in linker error (3 times):

.text._ZN8touchgfx8LCD16bpp19DecompressorRGB_QOI16blitCopyARGB8888EPKhRKNS_4RectES6_h+0x31c): undefined reference to `touchgfx::paint::flushLine(unsigned long*, int)'

(and, of course, we did an refresh / clean / recompile)

By disabling the RGB decompression modul, linking is fine, but compressed bitmaps do no more work (of course):

FrontendApplicationBase.cpp:

comment this out in FrontendApplicationBase::FrontendApplicationBase constructor:
reinterpret_cast<touchgfx::LCD16bpp&>(touchgfx::HAL::lcd()).enableDecompressorRGB();

stm stuff: any hits?

Thanks!

[LouisB]

Hello @SEam72 ,

Did you created your project from the 4.24 version or you did a migration from an older version ?

BR,

[SEam72]

Hi,

this is an upgrade from older version (started at 4.18).

Of course we deleted all the generated-dirs and touchgfx-dir, so everything is generated completly new without any old stuff.

We created a weak flushline() function, so the linker is satisfied, but we did not yet tested it with compressed pictures.

Thank you.
/ SE

[LouisB]

It might be an issue with how it's link in cube mx, there's the same issue here Solved: TouchGfx 4.24 linker problem - STMicroelectronics Community. It may solve the problem.

BR,

[SEam72]

We used CubeMX just for initial project setup, no more again because of different reasons.

But the flushline-function should be part of the TouchGFX-library, should'nt it? I don't see any reason why it maybe is part of CubeMX and why we there should be a need for CubeMX.

In which library or where as sourcecode is flusline() it implemented?

Thank you.