texturec: Fixed crash when input texture is already BC encoded.
texturec: Fixed crash when input texture is already BC encoded.

LWJGL-CI/bgfx,bkaradzic/bgfx,mendsley/bgfx,attilaz/bgfx,mmicko/bgfx,septag/bgfx,jdryg/bgfx,jpcy/bgfx,attilaz/bgfx,fluffyfreak/bgfx,emoon/bgfx,mendsley/bgfx,mmicko/bgfx,Synxis/bgfx,fluffyfreak/bgfx,MikePopoloski/bgfx,jpcy/bgfx,bkaradzic/bgfx,fluffyfreak/bgfx,Synxis/bgfx,LWJGL-CI/bgfx,septag/bgfx,emoon/bgfx,mendsley/bgfx,bkaradzic/bgfx,Synxis/bgfx,jdryg/bgfx,mmicko/bgfx,jdryg/bgfx,jdryg/bgfx,attilaz/bgfx,septag/bgfx,fluffyfreak/bgfx,LWJGL-CI/bgfx,bkaradzic/bgfx,MikePopoloski/bgfx,LWJGL-CI/bgfx,emoon/bgfx,jpcy/bgfx,jpcy/bgfx,MikePopoloski/bgfx