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llvmpipe: Describe _mm_shuffle_epi8() with gcc extended inline assembly when -mssse3 is not supported/enabled.

This commit is contained in:
José Fonseca 2010-07-16 13:16:57 +01:00
parent 0a36a064a1
commit b7fff13d58
1 changed files with 30 additions and 3 deletions
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33
src/gallium/drivers/llvmpipe/lp_tile_soa.py
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@ -291,10 +291,37 @@ def generate_format_write(format, src_channel, src_native_type, src_suffix):
def generate_ssse3():
print '''
#ifdef PIPE_ARCH_SSSE3
#if defined(PIPE_ARCH_SSE)
#if defined(PIPE_ARCH_SSSE3)
#include <tmmintrin.h>
#else
#include <emmintrin.h>
/**
* Describe _mm_shuffle_epi8() with gcc extended inline assembly, for cases
* where -mssse3 is not supported/enabled.
*
* MSVC will never get in here as its intrinsics support do not rely on
* compiler command line options.
*/
static __inline __m128i __attribute__((__gnu_inline__, __always_inline__, __artificial__))
_mm_shuffle_epi8(__m128i a, __m128i mask)
{
__m128i result;
__asm__("pshufb %1, %0"
: "=x" (result)
: "xm" (mask), "0" (a));
return result;
}
#endif
static void
lp_tile_b8g8r8a8_unorm_swizzle_4ub_ssse3(uint8_t *dst,
const uint8_t *src, unsigned src_stride,
@ -478,7 +505,7 @@ def generate_swizzle(formats, dst_channel, dst_native_type, dst_suffix):
print ' case %s:' % format.name
func_name = 'lp_tile_%s_swizzle_%s' % (format.short_name(), dst_suffix)
if format.name == 'PIPE_FORMAT_B8G8R8A8_UNORM':
print '#ifdef PIPE_ARCH_SSSE3'
print '#ifdef PIPE_ARCH_SSE'
print ' func = util_cpu_caps.has_ssse3 ? %s_ssse3 : %s;' % (func_name, func_name)
print '#else'
print ' func = %s;' % (func_name,)
@ -516,7 +543,7 @@ def generate_unswizzle(formats, src_channel, src_native_type, src_suffix):
print ' case %s:' % format.name
func_name = 'lp_tile_%s_unswizzle_%s' % (format.short_name(), src_suffix)
if format.name == 'PIPE_FORMAT_B8G8R8A8_UNORM':
print '#ifdef PIPE_ARCH_SSSE3'
print '#ifdef PIPE_ARCH_SSE'
print ' func = util_cpu_caps.has_ssse3 ? %s_ssse3 : %s;' % (func_name, func_name)
print '#else'
print ' func = %s;' % (func_name,)