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iOS: Enable NEON optimizations, except for the pixman draw-helpers

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We used to disable NEON completely, as the iOS toolchain does not
handle the GAS syntax of the pixman draw-helpers. But we can limit
the disabling to just the draw-helpers, which means we get NEON
optimization of eg. QImage and QString.

Change-Id: If350b06ce521cca8b24468be5a168ff21e9e7124
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@digia.com>
This commit is contained in:
Tor Arne Vestbø 2013-03-31 23:31:44 +02:00 committed by The Qt Project
parent 4f072e2d3d
commit 182d6292ce
3 changed files with 8 additions and 6 deletions
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3
configure vendored
View File

@ -4291,8 +4291,7 @@ fi
# detect neon support
if [ "$CFG_ARCH" = "arm" ] && [ "${CFG_NEON}" = "auto" ]; then
# The iOS toolchain has trouble building the pixman NEON draw-helpers
if [ "$XPLATFORM_IOS" != "yes" ] && compileTest unix/neon "neon"; then
if compileTest unix/neon "neon"; then
CFG_NEON=yes
else
CFG_NEON=no

9
src/gui/painting/painting.pri
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@ -91,9 +91,12 @@ SSE2_SOURCES += painting/qdrawhelper_sse2.cpp
SSSE3_SOURCES += painting/qdrawhelper_ssse3.cpp
IWMMXT_SOURCES += painting/qdrawhelper_iwmmxt.cpp
AVX_SOURCES += painting/qdrawhelper_avx.cpp
NEON_SOURCES += painting/qdrawhelper_neon.cpp
NEON_HEADERS += painting/qdrawhelper_neon_p.h
NEON_ASM += ../3rdparty/pixman/pixman-arm-neon-asm.S painting/qdrawhelper_neon_asm.S
!ios {
NEON_SOURCES += painting/qdrawhelper_neon.cpp
NEON_HEADERS += painting/qdrawhelper_neon_p.h
NEON_ASM += ../3rdparty/pixman/pixman-arm-neon-asm.S painting/qdrawhelper_neon_asm.S
}
MIPS_DSP_SOURCES += painting/qdrawhelper_mips_dsp.cpp
MIPS_DSP_HEADERS += painting/qdrawhelper_mips_dsp_p.h painting/qt_mips_asm_dsp_p.h

2
src/gui/painting/qdrawhelper.cpp
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@ -6157,7 +6157,7 @@ void qInitDrawhelperAsm()
}
#endif // IWMMXT
#if defined(QT_COMPILER_SUPPORTS_NEON)
#if defined(QT_COMPILER_SUPPORTS_NEON) && !defined(Q_OS_IOS)
if (features & NEON) {
qBlendFunctions[QImage::Format_RGB32][QImage::Format_RGB32] = qt_blend_rgb32_on_rgb32_neon;
qBlendFunctions[QImage::Format_ARGB32_Premultiplied][QImage::Format_RGB32] = qt_blend_rgb32_on_rgb32_neon;