Somewhere along the path from OpenGL ES 2.0 to OpenGL ES 3.0 are some algorithms that are encumbered by patents. These algorithms are enabled with mesa's --enable-texture-float configure flag. However, if hardware acceleration is being used and the hardware supports --enable-texture-float, it means the hardware vendor has paid for the patents.
This patch will add --enable-texture-float for any hardware-backed gallium mesa driver. In other words, if you are only using the software backup (swrast) you'll need to enable this flag if you know what you're doing (which assumes you are complying with the patent). Otherwise we enable this flag so the software can take full advantage of the hardware. Signed-off-by: Trevor Woerner <twoer...@gmail.com> --- meta/recipes-graphics/mesa/mesa.inc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/meta/recipes-graphics/mesa/mesa.inc b/meta/recipes-graphics/mesa/mesa.inc index 447fd6d0df..7ea3a88b9f 100644 --- a/meta/recipes-graphics/mesa/mesa.inc +++ b/meta/recipes-graphics/mesa/mesa.inc @@ -64,7 +64,7 @@ GALLIUMDRIVERS_LLVM = "r300,svga,nouveau${@',${GALLIUMDRIVERS_LLVM33}' if ${GALL GALLIUMDRIVERS_append_x86 = "${@bb.utils.contains('PACKAGECONFIG', 'gallium-llvm', ',${GALLIUMDRIVERS_LLVM}', '', d)}" GALLIUMDRIVERS_append_x86-64 = "${@bb.utils.contains('PACKAGECONFIG', 'gallium-llvm', ',${GALLIUMDRIVERS_LLVM}', '', d)}" # keep --with-gallium-drivers separate, because when only one of gallium versions is enabled, other 2 were adding --without-gallium-drivers -PACKAGECONFIG[gallium] = "--with-gallium-drivers=${GALLIUMDRIVERS}, --without-gallium-drivers" +PACKAGECONFIG[gallium] = "${@'' if '${GALLIUMDRIVERS}'.strip() == 'swrast' else '--enable-texture-float'} --with-gallium-drivers=${GALLIUMDRIVERS}, --without-gallium-drivers" MESA_LLVM_RELEASE ?= "3.3" PACKAGECONFIG[gallium-llvm] = "--enable-gallium-llvm --enable-llvm-shared-libs, --disable-gallium-llvm, llvm${MESA_LLVM_RELEASE} \ ${@'elfutils' if ${GALLIUMDRIVERS_LLVM33_ENABLED} else ''}" -- 2.13.0 -- _______________________________________________ Openembedded-core mailing list Openembedded-core@lists.openembedded.org http://lists.openembedded.org/mailman/listinfo/openembedded-core