Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 241 insertions, 0 deletions

diff --git a/gfx/cairo/libpixman/src/pixman-x86.c b/gfx/cairo/libpixman/src/pixman-x86.c
new file mode 100644
index 0000000000..feea23e790
--- /dev/null
+++ b/gfx/cairo/libpixman/src/pixman-x86.c
@@ -0,0 +1,241 @@
+/*
+ * 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)
+
+/* 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)
+} 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;
+    }
+
+    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
+}
+
+#ifdef _MSC_VER
+#include <intrin.h> /* for __cpuid */
+#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;
+
+    /* 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, "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)
+
+#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
+
+    return imp;
+}