diff options
| -rw-r--r-- | src/mesa/drivers/dri/i915tex/intel_tex.c | 51 |
1 files changed, 28 insertions, 23 deletions
diff --git a/src/mesa/drivers/dri/i915tex/intel_tex.c b/src/mesa/drivers/dri/i915tex/intel_tex.c index 51875ab2921..8046c29d950 100644 --- a/src/mesa/drivers/dri/i915tex/intel_tex.c +++ b/src/mesa/drivers/dri/i915tex/intel_tex.c @@ -75,6 +75,31 @@ intelFreeTextureImageData(GLcontext * ctx, struct gl_texture_image *texImage) } +/* The system memcpy (at least on ubuntu 5.10) has problems copying + * to agp (writecombined) memory from a source which isn't 64-byte + * aligned - there is a 4x performance falloff. + * + * The x86 __memcpy is immune to this but is slightly slower + * (10%-ish) than the system memcpy. + * + * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but + * isn't much faster than x86_memcpy for agp copies. + * + * TODO: switch dynamically. + */ +static void * +do_memcpy(void *dest, const void *src, size_t n) +{ + if ((((unsigned) src) & 63) || (((unsigned) dest) & 63)) { + return __memcpy(dest, src, n); + } + else + return memcpy(dest, src, n); +} + + +#if DO_DEBUG + #ifndef __x86_64__ static unsigned fastrdtsc(void) @@ -109,29 +134,6 @@ time_diff(unsigned t, unsigned t2) } -/* The system memcpy (at least on ubuntu 5.10) has problems copying - * to agp (writecombined) memory from a source which isn't 64-byte - * aligned - there is a 4x performance falloff. - * - * The x86 __memcpy is immune to this but is slightly slower - * (10%-ish) than the system memcpy. - * - * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but - * isn't much faster than x86_memcpy for agp copies. - * - * TODO: switch dynamically. - */ -static void * -do_memcpy(void *dest, const void *src, size_t n) -{ - if ((((unsigned) src) & 63) || (((unsigned) dest) & 63)) { - return __memcpy(dest, src, n); - } - else - return memcpy(dest, src, n); -} - - static void * timed_memcpy(void *dest, const void *src, size_t n) { @@ -151,6 +153,7 @@ timed_memcpy(void *dest, const void *src, size_t n) _mesa_printf("timed_memcpy: %u %u --> %f clocks/byte\n", t1, t2, rate); return ret; } +#endif /* DO_DEBUG */ void @@ -175,8 +178,10 @@ intelInitTextureFuncs(struct dd_function_table *functions) functions->UpdateTexturePalette = 0; functions->IsTextureResident = intelIsTextureResident; +#if DO_DEBUG if (INTEL_DEBUG & DEBUG_BUFMGR) functions->TextureMemCpy = timed_memcpy; else +#endif functions->TextureMemCpy = do_memcpy; } |