[meta-ti] No GLESv1 support on Morty?
Joshua Watt
jpewhacker at gmail.com
Mon Dec 18 08:59:27 PST 2017
On Fri, 2017-12-15 at 16:44 -0600, Joshua Watt wrote:
> Hello,
>
> I'm attempting to build an application that uses the PVR GLESv1
> libraries (ti-sgx-ddk-um) off of the morty branch. However, it
> appears
> that when I call eglGetConfigs(), it doesn not return any GLESv1
> compatible configs, and so eglChooseConfigs() failes to find one that
> works. I have printed out the configs that are returned and it looks
> like all of them are GLESv2 only:
>
> Config 0x1:
> color=8,8,8
> alpha=8
> depth=24
> type=(0x4) GLESv2
> Config 0x2:
> color=8,8,8
> alpha=8
> depth=0
> type=(0x4) GLESv2
> Config 0x3:
> color=8,8,8
> alpha=8
> depth=24
> type=(0x4) GLESv2
> Config 0x4:
> color=8,8,8
> alpha=0
> depth=24
> type=(0x4) GLESv2
> Config 0x5:
> color=8,8,8
> alpha=0
> depth=0
> type=(0x4) GLESv2
> Config 0x6:
> color=8,8,8
> alpha=0
> depth=24
> type=(0x4) GLESv2
> Config 0x7:
> color=5,6,5
> alpha=0
> depth=24
> type=(0x4) GLESv2
> Config 0x8:
> color=5,6,5
> alpha=0
> depth=0
> type=(0x4) GLESv2
> Config 0x9:
> color=5,6,5
> alpha=0
> depth=24
> type=(0x4) GLESv2
>
> I made sure I was linking against libGLES_CM and libEGL (but *not*
> libGLESv2). I beleive this same code worked on the daisy branch.
>
> Is there something I'm missing to enable GLESv1 support?
I think I figured this out. libGLES_CM.so was missing on the filesystem
(even though the libGLES_CM.so.1 symlink and actualy .so library were
present). Apparently this symlink is required in order for the EGL
implementation to report that it support GLESv1. See:
https://lists.yoctoproject.org/pipermail/meta-ti/2017-December/010565.h
tml
>
> Thank,
> Joshua Watt
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