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Diffstat (limited to 'libs/pixman-0.40.0/pixman/pixman-x86.c')
-rw-r--r--libs/pixman-0.40.0/pixman/pixman-x86.c249
1 files changed, 0 insertions, 249 deletions
diff --git a/libs/pixman-0.40.0/pixman/pixman-x86.c b/libs/pixman-0.40.0/pixman/pixman-x86.c
deleted file mode 100644
index 0130b7b..0000000
--- a/libs/pixman-0.40.0/pixman/pixman-x86.c
+++ /dev/null
@@ -1,249 +0,0 @@
-/*
- * Copyright © 2000 SuSE, Inc.
- * Copyright © 2007 Red Hat, Inc.
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the name of SuSE not be used in advertising or
- * publicity pertaining to distribution of the software without specific,
- * written prior permission. SuSE makes no representations about the
- * suitability of this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- *
- * SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE
- * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
- * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include "pixman-private.h"
-
-#if defined(USE_X86_MMX) || defined (USE_SSE2) || defined (USE_SSSE3)
-
-/* The CPU detection code needs to be in a file not compiled with
- * "-mmmx -msse", as gcc would generate CMOV instructions otherwise
- * that would lead to SIGILL instructions on old CPUs that don't have
- * it.
- */
-
-typedef enum
-{
- X86_MMX = (1 << 0),
- X86_MMX_EXTENSIONS = (1 << 1),
- X86_SSE = (1 << 2) | X86_MMX_EXTENSIONS,
- X86_SSE2 = (1 << 3),
- X86_CMOV = (1 << 4),
- X86_SSSE3 = (1 << 5)
-} cpu_features_t;
-
-#ifdef HAVE_GETISAX
-
-#include <sys/auxv.h>
-
-static cpu_features_t
-detect_cpu_features (void)
-{
- cpu_features_t features = 0;
- unsigned int result = 0;
-
- if (getisax (&result, 1))
- {
- if (result & AV_386_CMOV)
- features |= X86_CMOV;
- if (result & AV_386_MMX)
- features |= X86_MMX;
- if (result & AV_386_AMD_MMX)
- features |= X86_MMX_EXTENSIONS;
- if (result & AV_386_SSE)
- features |= X86_SSE;
- if (result & AV_386_SSE2)
- features |= X86_SSE2;
- if (result & AV_386_SSSE3)
- features |= X86_SSSE3;
- }
-
- return features;
-}
-
-#else
-
-#define _PIXMAN_X86_64 \
- (defined(__amd64__) || defined(__x86_64__) || defined(_M_AMD64))
-
-static pixman_bool_t
-have_cpuid (void)
-{
-#if _PIXMAN_X86_64 || defined (_MSC_VER)
-
- return TRUE;
-
-#elif defined (__GNUC__)
- uint32_t result;
-
- __asm__ volatile (
- "pushf" "\n\t"
- "pop %%eax" "\n\t"
- "mov %%eax, %%ecx" "\n\t"
- "xor $0x00200000, %%eax" "\n\t"
- "push %%eax" "\n\t"
- "popf" "\n\t"
- "pushf" "\n\t"
- "pop %%eax" "\n\t"
- "xor %%ecx, %%eax" "\n\t"
- "mov %%eax, %0" "\n\t"
- : "=r" (result)
- :
- : "%eax", "%ecx");
-
- return !!result;
-
-#else
-#error "Unknown compiler"
-#endif
-}
-
-static void
-pixman_cpuid (uint32_t feature,
- uint32_t *a, uint32_t *b, uint32_t *c, uint32_t *d)
-{
-#if defined (__GNUC__)
-
-#if _PIXMAN_X86_64
- __asm__ volatile (
- "cpuid" "\n\t"
- : "=a" (*a), "=b" (*b), "=c" (*c), "=d" (*d)
- : "a" (feature));
-#else
- /* On x86-32 we need to be careful about the handling of %ebx
- * and %esp. We can't declare either one as clobbered
- * since they are special registers (%ebx is the "PIC
- * register" holding an offset to global data, %esp the
- * stack pointer), so we need to make sure that %ebx is
- * preserved, and that %esp has its original value when
- * accessing the output operands.
- */
- __asm__ volatile (
- "xchg %%ebx, %1" "\n\t"
- "cpuid" "\n\t"
- "xchg %%ebx, %1" "\n\t"
- : "=a" (*a), "=r" (*b), "=c" (*c), "=d" (*d)
- : "a" (feature));
-#endif
-
-#elif defined (_MSC_VER)
- int info[4];
-
- __cpuid (info, feature);
-
- *a = info[0];
- *b = info[1];
- *c = info[2];
- *d = info[3];
-#else
-#error Unknown compiler
-#endif
-}
-
-static cpu_features_t
-detect_cpu_features (void)
-{
- uint32_t a, b, c, d;
- cpu_features_t features = 0;
-
- if (!have_cpuid())
- return features;
-
- /* Get feature bits */
- pixman_cpuid (0x01, &a, &b, &c, &d);
- if (d & (1 << 15))
- features |= X86_CMOV;
- if (d & (1 << 23))
- features |= X86_MMX;
- if (d & (1 << 25))
- features |= X86_SSE;
- if (d & (1 << 26))
- features |= X86_SSE2;
- if (c & (1 << 9))
- features |= X86_SSSE3;
-
- /* Check for AMD specific features */
- if ((features & X86_MMX) && !(features & X86_SSE))
- {
- char vendor[13];
-
- /* Get vendor string */
- memset (vendor, 0, sizeof vendor);
-
- pixman_cpuid (0x00, &a, &b, &c, &d);
- memcpy (vendor + 0, &b, 4);
- memcpy (vendor + 4, &d, 4);
- memcpy (vendor + 8, &c, 4);
-
- if (strcmp (vendor, "AuthenticAMD") == 0 ||
- strcmp (vendor, "HygonGenuine") == 0 ||
- strcmp (vendor, "Geode by NSC") == 0)
- {
- pixman_cpuid (0x80000000, &a, &b, &c, &d);
- if (a >= 0x80000001)
- {
- pixman_cpuid (0x80000001, &a, &b, &c, &d);
-
- if (d & (1 << 22))
- features |= X86_MMX_EXTENSIONS;
- }
- }
- }
-
- return features;
-}
-
-#endif
-
-static pixman_bool_t
-have_feature (cpu_features_t feature)
-{
- static pixman_bool_t initialized;
- static cpu_features_t features;
-
- if (!initialized)
- {
- features = detect_cpu_features();
- initialized = TRUE;
- }
-
- return (features & feature) == feature;
-}
-
-#endif
-
-pixman_implementation_t *
-_pixman_x86_get_implementations (pixman_implementation_t *imp)
-{
-#define MMX_BITS (X86_MMX | X86_MMX_EXTENSIONS)
-#define SSE2_BITS (X86_MMX | X86_MMX_EXTENSIONS | X86_SSE | X86_SSE2)
-#define SSSE3_BITS (X86_SSE | X86_SSE2 | X86_SSSE3)
-
-#ifdef USE_X86_MMX
- if (!_pixman_disabled ("mmx") && have_feature (MMX_BITS))
- imp = _pixman_implementation_create_mmx (imp);
-#endif
-
-#ifdef USE_SSE2
- if (!_pixman_disabled ("sse2") && have_feature (SSE2_BITS))
- imp = _pixman_implementation_create_sse2 (imp);
-#endif
-
-#ifdef USE_SSSE3
- if (!_pixman_disabled ("ssse3") && have_feature (SSSE3_BITS))
- imp = _pixman_implementation_create_ssse3 (imp);
-#endif
-
- return imp;
-}
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