diff options
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_tex.c | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_tex.c b/src/mesa/drivers/dri/intel/intel_tex.c index 743a0432e43..2c21ea0576e 100644 --- a/src/mesa/drivers/dri/intel/intel_tex.c +++ b/src/mesa/drivers/dri/intel/intel_tex.c @@ -61,88 +61,6 @@ intelFreeTextureImageData(struct gl_context * ctx, struct gl_texture_image *texI } } - -/* 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 long) src) & 63) || (((unsigned long) dest) & 63)) { - return __memcpy(dest, src, n); - } - else - return memcpy(dest, src, n); -} - - -#if DO_DEBUG && !defined(__ia64__) - -#ifndef __x86_64__ -static unsigned -fastrdtsc(void) -{ - unsigned eax; - __asm__ volatile ("\t" - "pushl %%ebx\n\t" - "cpuid\n\t" ".byte 0x0f, 0x31\n\t" - "popl %%ebx\n":"=a" (eax) - :"0"(0) - :"ecx", "edx", "cc"); - - return eax; -} -#else -static unsigned -fastrdtsc(void) -{ - unsigned eax; - __asm__ volatile ("\t" "cpuid\n\t" ".byte 0x0f, 0x31\n\t":"=a" (eax) - :"0"(0) - :"ecx", "edx", "ebx", "cc"); - - return eax; -} -#endif - -static unsigned -time_diff(unsigned t, unsigned t2) -{ - return ((t < t2) ? t2 - t : 0xFFFFFFFFU - (t - t2 - 1)); -} - - -static void * -timed_memcpy(void *dest, const void *src, size_t n) -{ - void *ret; - unsigned t1, t2; - double rate; - - if ((((unsigned) src) & 63) || (((unsigned) dest) & 63)) - printf("Warning - non-aligned texture copy!\n"); - - t1 = fastrdtsc(); - ret = do_memcpy(dest, src, n); - t2 = fastrdtsc(); - - rate = time_diff(t1, t2); - rate /= (double) n; - printf("timed_memcpy: %u %u --> %f clocks/byte\n", t1, t2, rate); - return ret; -} -#endif /* DO_DEBUG */ - - /** * Called via ctx->Driver.GenerateMipmap() * This is basically a wrapper for _mesa_meta_GenerateMipmap() which checks @@ -202,11 +120,4 @@ intelInitTextureFuncs(struct dd_function_table *functions) functions->NewTextureImage = intelNewTextureImage; functions->DeleteTexture = intelDeleteTextureObject; functions->FreeTexImageData = intelFreeTextureImageData; - -#if DO_DEBUG && !defined(__ia64__) - if (INTEL_DEBUG & DEBUG_BUFMGR) - functions->TextureMemCpy = timed_memcpy; - else -#endif - functions->TextureMemCpy = do_memcpy; } |