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llvmpipe: SSE2 fastpaths for b8g8r8x8 {un,}swizzle

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Copy-and-paste from the bgra cases.  The C paths attempt to avoid
copying the 'x' channel, but it's harmless, you might as well.  Good for
about 5% in glxgears (740 to 780 fps).

Signed-off-by: Adam Jackson <ajax@redhat.com>
This commit is contained in:
Adam Jackson 2011-06-10 12:56:51 -04:00
parent a8b9a75b92
commit 130e7ead87
1 changed files with 66 additions and 2 deletions
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68
src/gallium/drivers/llvmpipe/lp_tile_soa.py
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@ -423,6 +423,70 @@ lp_tile_b8g8r8a8_unorm_unswizzle_4ub_sse2(const uint8_t * restrict src,
}
}
static void
lp_tile_b8g8r8x8_unorm_swizzle_4ub_sse2(uint8_t * restrict dst,
const uint8_t * restrict src, unsigned src_stride,
unsigned x0, unsigned y0)
{
__m128i *dst128 = (__m128i *) dst;
unsigned x, y;
src += y0 * src_stride;
src += x0 * sizeof(uint32_t);
for (y = 0; y < TILE_SIZE; y += 4) {
const uint8_t *src_row = src;
for (x = 0; x < TILE_SIZE; x += 4) {
swz4((const __m128i *) (src_row + 0 * src_stride),
(const __m128i *) (src_row + 1 * src_stride),
(const __m128i *) (src_row + 2 * src_stride),
(const __m128i *) (src_row + 3 * src_stride),
dst128 + 2, /* b */
dst128 + 1, /* g */
dst128 + 0, /* r */
dst128 + 3); /* a */
dst128 += 4;
src_row += sizeof(__m128i);
}
src += 4 * src_stride;
}
}
static void
lp_tile_b8g8r8x8_unorm_unswizzle_4ub_sse2(const uint8_t * restrict src,
uint8_t * restrict dst, unsigned dst_stride,
unsigned x0, unsigned y0)
{
unsigned int x, y;
const __m128i *src128 = (const __m128i *) src;
dst += y0 * dst_stride;
dst += x0 * sizeof(uint32_t);
for (y = 0; y < TILE_SIZE; y += 4) {
const uint8_t *dst_row = dst;
for (x = 0; x < TILE_SIZE; x += 4) {
unswz4( &src128[2], /* b */
&src128[1], /* g */
&src128[0], /* r */
&src128[3], /* a */
(__m128i *) (dst_row + 0 * dst_stride),
(__m128i *) (dst_row + 1 * dst_stride),
(__m128i *) (dst_row + 2 * dst_stride),
(__m128i *) (dst_row + 3 * dst_stride));
src128 += 4;
dst_row += sizeof(__m128i);;
}
dst += 4 * dst_stride;
}
}
#endif /* PIPE_ARCH_SSE */
'''
@ -446,7 +510,7 @@ def generate_swizzle(formats, dst_channel, dst_native_type, dst_suffix):
if is_format_supported(format):
print ' case %s:' % format.name
func_name = 'lp_tile_%s_swizzle_%s' % (format.short_name(), dst_suffix)
if format.name == 'PIPE_FORMAT_B8G8R8A8_UNORM':
if format.name == 'PIPE_FORMAT_B8G8R8A8_UNORM' or format.name == 'PIPE_FORMAT_B8G8R8X8_UNORM':
print '#ifdef PIPE_ARCH_SSE'
print ' func = util_cpu_caps.has_sse2 ? %s_sse2 : %s;' % (func_name, func_name)
print '#else'
@ -484,7 +548,7 @@ def generate_unswizzle(formats, src_channel, src_native_type, src_suffix):
if is_format_supported(format):
print ' case %s:' % format.name
func_name = 'lp_tile_%s_unswizzle_%s' % (format.short_name(), src_suffix)
if format.name == 'PIPE_FORMAT_B8G8R8A8_UNORM':
if format.name == 'PIPE_FORMAT_B8G8R8A8_UNORM' or format.name == 'PIPE_FORMAT_B8G8R8X8_UNORM':
print '#ifdef PIPE_ARCH_SSE'
print ' func = util_cpu_caps.has_sse2 ? %s_sse2 : %s;' % (func_name, func_name)
print '#else'