Adding upstream version 86.0.1.upstream/86.0.1upstream

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

1 files changed, 799 insertions, 0 deletions

diff --git a/gfx/cairo/libpixman/src/pixman-cpu.c b/gfx/cairo/libpixman/src/pixman-cpu.c
new file mode 100644
index 0000000000..0eabb4e256
--- /dev/null
+++ b/gfx/cairo/libpixman/src/pixman-cpu.c
@@ -0,0 +1,799 @@
+/*
+ * 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 <string.h>
+#include <stdlib.h>
+
+#if defined(USE_ARM_SIMD) && defined(_MSC_VER)
+/* Needed for EXCEPTION_ILLEGAL_INSTRUCTION */
+#include <windows.h>
+#endif
+
+#if defined(__APPLE__)
+#include "TargetConditionals.h"
+#endif
+
+#include "pixman-private.h"
+
+#ifdef USE_VMX
+
+/* The CPU detection code needs to be in a file not compiled with
+ * "-maltivec -mabi=altivec", as gcc would try to save vector register
+ * across function calls causing SIGILL on cpus without Altivec/vmx.
+ */
+static pixman_bool_t initialized = FALSE;
+static volatile pixman_bool_t have_vmx = TRUE;
+
+#ifdef __APPLE__
+#include <sys/sysctl.h>
+
+static pixman_bool_t
+pixman_have_vmx (void)
+{
+    if (!initialized)
+    {
+	size_t length = sizeof(have_vmx);
+	int error =
+	    sysctlbyname ("hw.optional.altivec", &have_vmx, &length, NULL, 0);
+
+	if (error)
+	    have_vmx = FALSE;
+
+	initialized = TRUE;
+    }
+    return have_vmx;
+}
+
+#elif defined (__OpenBSD__)
+#include <sys/param.h>
+#include <sys/sysctl.h>
+#include <machine/cpu.h>
+
+static pixman_bool_t
+pixman_have_vmx (void)
+{
+    if (!initialized)
+    {
+	int mib[2] = { CTL_MACHDEP, CPU_ALTIVEC };
+	size_t length = sizeof(have_vmx);
+	int error =
+	    sysctl (mib, 2, &have_vmx, &length, NULL, 0);
+
+	if (error != 0)
+	    have_vmx = FALSE;
+
+	initialized = TRUE;
+    }
+    return have_vmx;
+}
+
+#elif defined (__linux__)
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <linux/auxvec.h>
+#include <asm/cputable.h>
+
+static pixman_bool_t
+pixman_have_vmx (void)
+{
+    if (!initialized)
+    {
+	char fname[64];
+	unsigned long buf[64];
+	ssize_t count = 0;
+	pid_t pid;
+	int fd, i;
+
+	pid = getpid ();
+	snprintf (fname, sizeof(fname) - 1, "/proc/%d/auxv", pid);
+
+	fd = open (fname, O_RDONLY);
+	if (fd >= 0)
+	{
+	    for (i = 0; i <= (count / sizeof(unsigned long)); i += 2)
+	    {
+		/* Read more if buf is empty... */
+		if (i == (count / sizeof(unsigned long)))
+		{
+		    count = read (fd, buf, sizeof(buf));
+		    if (count <= 0)
+			break;
+		    i = 0;
+		}
+
+		if (buf[i] == AT_HWCAP)
+		{
+		    have_vmx = !!(buf[i + 1] & PPC_FEATURE_HAS_ALTIVEC);
+		    initialized = TRUE;
+		    break;
+		}
+		else if (buf[i] == AT_NULL)
+		{
+		    break;
+		}
+	    }
+	    close (fd);
+	}
+    }
+    if (!initialized)
+    {
+	/* Something went wrong. Assume 'no' rather than playing
+	   fragile tricks with catching SIGILL. */
+	have_vmx = FALSE;
+	initialized = TRUE;
+    }
+
+    return have_vmx;
+}
+
+#else /* !__APPLE__ && !__OpenBSD__ && !__linux__ */
+#include <signal.h>
+#include <setjmp.h>
+
+static jmp_buf jump_env;
+
+static void
+vmx_test (int        sig,
+	  siginfo_t *si,
+	  void *     unused)
+{
+    longjmp (jump_env, 1);
+}
+
+static pixman_bool_t
+pixman_have_vmx (void)
+{
+    struct sigaction sa, osa;
+    int jmp_result;
+
+    if (!initialized)
+    {
+	sa.sa_flags = SA_SIGINFO;
+	sigemptyset (&sa.sa_mask);
+	sa.sa_sigaction = vmx_test;
+	sigaction (SIGILL, &sa, &osa);
+	jmp_result = setjmp (jump_env);
+	if (jmp_result == 0)
+	{
+	    asm volatile ( "vor 0, 0, 0" );
+	}
+	sigaction (SIGILL, &osa, NULL);
+	have_vmx = (jmp_result == 0);
+	initialized = TRUE;
+    }
+    return have_vmx;
+}
+
+#endif /* __APPLE__ */
+#endif /* USE_VMX */
+
+#if defined(USE_ARM_SIMD) || defined(USE_ARM_NEON) || defined(USE_ARM_IWMMXT)
+
+#if defined(_MSC_VER)
+
+#if defined(USE_ARM_SIMD)
+extern int pixman_msvc_try_arm_simd_op ();
+
+pixman_bool_t
+pixman_have_arm_simd (void)
+{
+    static pixman_bool_t initialized = FALSE;
+    static pixman_bool_t have_arm_simd = FALSE;
+
+    if (!initialized)
+    {
+	__try {
+	    pixman_msvc_try_arm_simd_op ();
+	    have_arm_simd = TRUE;
+	} __except (GetExceptionCode () == EXCEPTION_ILLEGAL_INSTRUCTION) {
+	    have_arm_simd = FALSE;
+	}
+	initialized = TRUE;
+    }
+
+    return have_arm_simd;
+}
+
+#endif /* USE_ARM_SIMD */
+
+#if defined(USE_ARM_NEON)
+extern int pixman_msvc_try_arm_neon_op ();
+
+pixman_bool_t
+pixman_have_arm_neon (void)
+{
+    static pixman_bool_t initialized = FALSE;
+    static pixman_bool_t have_arm_neon = FALSE;
+
+    if (!initialized)
+    {
+	__try
+	{
+	    pixman_msvc_try_arm_neon_op ();
+	    have_arm_neon = TRUE;
+	}
+	__except (GetExceptionCode () == EXCEPTION_ILLEGAL_INSTRUCTION)
+	{
+	    have_arm_neon = FALSE;
+	}
+	initialized = TRUE;
+    }
+
+    return have_arm_neon;
+}
+
+#endif /* USE_ARM_NEON */
+
+#elif (defined (__APPLE__) && defined(TARGET_OS_IPHONE)) /* iOS (iPhone/iPad/iPod touch) */
+
+/* Detection of ARM NEON on iOS is fairly simple because iOS binaries
+ * contain separate executable images for each processor architecture.
+ * So all we have to do is detect the armv7 architecture build. The
+ * operating system automatically runs the armv7 binary for armv7 devices
+ * and the armv6 binary for armv6 devices.
+ */
+
+pixman_bool_t
+pixman_have_arm_simd (void)
+{
+#if defined(USE_ARM_SIMD)
+    return TRUE;
+#else
+    return FALSE;
+#endif
+}
+
+pixman_bool_t
+pixman_have_arm_neon (void)
+{
+#if defined(USE_ARM_NEON) && defined(__ARM_NEON__)
+    /* This is an armv7 cpu build */
+    return TRUE;
+#else
+    /* This is an armv6 cpu build */
+    return FALSE;
+#endif
+}
+
+pixman_bool_t
+pixman_have_arm_iwmmxt (void)
+{
+#if defined(USE_ARM_IWMMXT)
+    return FALSE;
+#else
+    return FALSE;
+#endif
+}
+
+#elif defined (__linux__) || defined(__ANDROID__) || defined(ANDROID) /* linux ELF or ANDROID */
+
+static pixman_bool_t arm_has_v7 = FALSE;
+static pixman_bool_t arm_has_v6 = FALSE;
+static pixman_bool_t arm_has_vfp = FALSE;
+static pixman_bool_t arm_has_neon = FALSE;
+static pixman_bool_t arm_has_iwmmxt = FALSE;
+static pixman_bool_t arm_tests_initialized = FALSE;
+
+#if defined(__ANDROID__) || defined(ANDROID) /* Android device support */
+
+static void
+pixman_arm_read_auxv_or_cpu_features ()
+{
+    char buf[1024];
+    char* pos;
+    const char* ver_token = "CPU architecture: ";
+    FILE* f = fopen("/proc/cpuinfo", "r");
+    if (!f) {
+	arm_tests_initialized = TRUE;
+	return;
+    }
+
+    fread(buf, sizeof(char), sizeof(buf), f);
+    fclose(f);
+    pos = strstr(buf, ver_token);
+    if (pos) {
+	char vchar = *(pos + strlen(ver_token));
+	if (vchar >= '0' && vchar <= '9') {
+	    int ver = vchar - '0';
+	    arm_has_v7 = ver >= 7;
+	    arm_has_v6 = ver >= 6;
+	}
+    }
+    arm_has_neon = strstr(buf, "neon") != NULL;
+    arm_has_vfp = strstr(buf, "vfp") != NULL;
+    arm_has_iwmmxt = strstr(buf, "iwmmxt") != NULL;
+    arm_tests_initialized = TRUE;
+}
+
+#elif defined (__linux__) /* linux ELF */
+
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+#include <string.h>
+#include <elf.h>
+
+static void
+pixman_arm_read_auxv_or_cpu_features ()
+{
+    int fd;
+    Elf32_auxv_t aux;
+
+    fd = open ("/proc/self/auxv", O_RDONLY);
+    if (fd >= 0)
+    {
+	while (read (fd, &aux, sizeof(Elf32_auxv_t)) == sizeof(Elf32_auxv_t))
+	{
+	    if (aux.a_type == AT_HWCAP)
+	    {
+		uint32_t hwcap = aux.a_un.a_val;
+		/* hardcode these values to avoid depending on specific
+		 * versions of the hwcap header, e.g. HWCAP_NEON
+		 */
+		arm_has_vfp = (hwcap & 64) != 0;
+		arm_has_iwmmxt = (hwcap & 512) != 0;
+		/* this flag is only present on kernel 2.6.29 */
+		arm_has_neon = (hwcap & 4096) != 0;
+	    }
+	    else if (aux.a_type == AT_PLATFORM)
+	    {
+		const char *plat = (const char*) aux.a_un.a_val;
+		if (strncmp (plat, "v7l", 3) == 0)
+		{
+		    arm_has_v7 = TRUE;
+		    arm_has_v6 = TRUE;
+		}
+		else if (strncmp (plat, "v6l", 3) == 0)
+		{
+		    arm_has_v6 = TRUE;
+		}
+	    }
+	}
+	close (fd);
+    }
+
+    arm_tests_initialized = TRUE;
+}
+
+#endif /* Linux elf */
+
+#if defined(USE_ARM_SIMD)
+pixman_bool_t
+pixman_have_arm_simd (void)
+{
+    if (!arm_tests_initialized)
+	pixman_arm_read_auxv_or_cpu_features ();
+
+    return arm_has_v6;
+}
+
+#endif /* USE_ARM_SIMD */
+
+#if defined(USE_ARM_NEON)
+pixman_bool_t
+pixman_have_arm_neon (void)
+{
+    if (!arm_tests_initialized)
+	pixman_arm_read_auxv_or_cpu_features ();
+
+    return arm_has_neon;
+}
+
+#endif /* USE_ARM_NEON */
+
+#if defined(USE_ARM_IWMMXT)
+pixman_bool_t
+pixman_have_arm_iwmmxt (void)
+{
+    if (!arm_tests_initialized)
+	pixman_arm_read_auxv_or_cpu_features ();
+
+    return arm_has_iwmmxt;
+}
+
+#endif /* USE_ARM_IWMMXT */
+
+#else /* !_MSC_VER && !Linux elf && !Android */
+
+#define pixman_have_arm_simd() FALSE
+#define pixman_have_arm_neon() FALSE
+#define pixman_have_arm_iwmmxt() FALSE
+
+#endif
+
+#endif /* USE_ARM_SIMD || USE_ARM_NEON || USE_ARM_IWMMXT */
+
+#if defined(USE_MIPS_DSPR2)
+
+#if defined (__linux__) /* linux ELF */
+
+pixman_bool_t
+pixman_have_mips_dspr2 (void)
+{
+    const char *search_string = "MIPS 74K";
+    const char *file_name = "/proc/cpuinfo";
+    /* Simple detection of MIPS DSP ASE (revision 2) at runtime for Linux.
+     * It is based on /proc/cpuinfo, which reveals hardware configuration
+     * to user-space applications.  According to MIPS (early 2010), no similar
+     * facility is universally available on the MIPS architectures, so it's up
+     * to individual OSes to provide such.
+     *
+     * Only currently available MIPS core that supports DSPr2 is 74K.
+     */
+
+    char cpuinfo_line[256];
+
+    FILE *f = NULL;
+
+    if ((f = fopen (file_name, "r")) == NULL)
+        return FALSE;
+
+    while (fgets (cpuinfo_line, sizeof (cpuinfo_line), f) != NULL)
+    {
+        if (strstr (cpuinfo_line, search_string) != NULL)
+        {
+            fclose (f);
+            return TRUE;
+        }
+    }
+
+    fclose (f);
+
+    /* Did not find string in the proc file. */
+    return FALSE;
+}
+
+#else /* linux ELF */
+
+#define pixman_have_mips_dspr2() FALSE
+
+#endif /* linux ELF */
+
+#endif /* USE_MIPS_DSPR2 */
+
+#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.
+ */
+#if !defined(__amd64__) && !defined(__x86_64__) && !defined(_M_AMD64)
+
+#ifdef HAVE_GETISAX
+#include <sys/auxv.h>
+#endif
+
+typedef enum
+{
+    NO_FEATURES = 0,
+    MMX = 0x1,
+    MMX_EXTENSIONS = 0x2,
+    SSE = 0x6,
+    SSE2 = 0x8,
+    CMOV = 0x10
+} cpu_features_t;
+
+
+static unsigned int
+detect_cpu_features (void)
+{
+    unsigned int features = 0;
+    unsigned int result = 0;
+
+#ifdef HAVE_GETISAX
+    if (getisax (&result, 1))
+    {
+	if (result & AV_386_CMOV)
+	    features |= CMOV;
+	if (result & AV_386_MMX)
+	    features |= MMX;
+	if (result & AV_386_AMD_MMX)
+	    features |= MMX_EXTENSIONS;
+	if (result & AV_386_SSE)
+	    features |= SSE;
+	if (result & AV_386_SSE2)
+	    features |= SSE2;
+    }
+#else
+    char vendor[13];
+#ifdef _MSC_VER
+    int vendor0 = 0, vendor1, vendor2;
+#endif
+    vendor[0] = 0;
+    vendor[12] = 0;
+
+#ifdef __GNUC__
+    /* see p. 118 of amd64 instruction set manual Vol3 */
+    /* We need to be careful about the handling of %ebx and
+     * %esp here. 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 they have their
+     * original values when we access the output operands.
+     */
+    __asm__ (
+        "pushf\n"
+        "pop %%eax\n"
+        "mov %%eax, %%ecx\n"
+        "xor $0x00200000, %%eax\n"
+        "push %%eax\n"
+        "popf\n"
+        "pushf\n"
+        "pop %%eax\n"
+        "mov $0x0, %%edx\n"
+        "xor %%ecx, %%eax\n"
+        "jz 1f\n"
+
+        "mov $0x00000000, %%eax\n"
+        "push %%ebx\n"
+        "cpuid\n"
+        "mov %%ebx, %%eax\n"
+        "pop %%ebx\n"
+        "mov %%eax, %1\n"
+        "mov %%edx, %2\n"
+        "mov %%ecx, %3\n"
+        "mov $0x00000001, %%eax\n"
+        "push %%ebx\n"
+        "cpuid\n"
+        "pop %%ebx\n"
+        "1:\n"
+        "mov %%edx, %0\n"
+	: "=r" (result),
+        "=m" (vendor[0]),
+        "=m" (vendor[4]),
+        "=m" (vendor[8])
+	:
+	: "%eax", "%ecx", "%edx"
+        );
+
+#elif defined (_MSC_VER)
+
+    _asm {
+	pushfd
+	pop eax
+	mov ecx, eax
+	xor eax, 00200000h
+	push eax
+	popfd
+	pushfd
+	pop eax
+	mov edx, 0
+	xor eax, ecx
+	jz nocpuid
+
+	mov eax, 0
+	push ebx
+	cpuid
+	mov eax, ebx
+	pop ebx
+	mov vendor0, eax
+	mov vendor1, edx
+	mov vendor2, ecx
+	mov eax, 1
+	push ebx
+	cpuid
+	pop ebx
+    nocpuid:
+	mov result, edx
+    }
+    memmove (vendor + 0, &vendor0, 4);
+    memmove (vendor + 4, &vendor1, 4);
+    memmove (vendor + 8, &vendor2, 4);
+
+#else
+#   error unsupported compiler
+#endif
+
+    features = 0;
+    if (result)
+    {
+	/* result now contains the standard feature bits */
+	if (result & (1 << 15))
+	    features |= CMOV;
+	if (result & (1 << 23))
+	    features |= MMX;
+	if (result & (1 << 25))
+	    features |= SSE;
+	if (result & (1 << 26))
+	    features |= SSE2;
+	if ((features & MMX) && !(features & SSE) &&
+	    (strcmp (vendor, "AuthenticAMD") == 0 ||
+	     strcmp (vendor, "Geode by NSC") == 0))
+	{
+	    /* check for AMD MMX extensions */
+#ifdef __GNUC__
+	    __asm__ (
+	        "	push %%ebx\n"
+	        "	mov $0x80000000, %%eax\n"
+	        "	cpuid\n"
+	        "	xor %%edx, %%edx\n"
+	        "	cmp $0x1, %%eax\n"
+	        "	jge 2f\n"
+	        "	mov $0x80000001, %%eax\n"
+	        "	cpuid\n"
+	        "2:\n"
+	        "	pop %%ebx\n"
+	        "	mov %%edx, %0\n"
+		: "=r" (result)
+		:
+		: "%eax", "%ecx", "%edx"
+	        );
+#elif defined _MSC_VER
+	    _asm {
+		push ebx
+		mov eax, 80000000h
+		cpuid
+		xor edx, edx
+		cmp eax, 1
+		jge notamd
+		mov eax, 80000001h
+		cpuid
+	    notamd:
+		pop ebx
+		mov result, edx
+	    }
+#endif
+	    if (result & (1 << 22))
+		features |= MMX_EXTENSIONS;
+	}
+    }
+#endif /* HAVE_GETISAX */
+
+    return features;
+}
+
+#ifdef USE_X86_MMX
+static pixman_bool_t
+pixman_have_mmx (void)
+{
+    static pixman_bool_t initialized = FALSE;
+    static pixman_bool_t mmx_present;
+
+    if (!initialized)
+    {
+	unsigned int features = detect_cpu_features ();
+	mmx_present = (features & (MMX | MMX_EXTENSIONS)) == (MMX | MMX_EXTENSIONS);
+	initialized = TRUE;
+    }
+
+    return mmx_present;
+}
+#endif
+
+#ifdef USE_SSE2
+static pixman_bool_t
+pixman_have_sse2 (void)
+{
+    static pixman_bool_t initialized = FALSE;
+    static pixman_bool_t sse2_present;
+
+    if (!initialized)
+    {
+	unsigned int features = detect_cpu_features ();
+	sse2_present = (features & (MMX | MMX_EXTENSIONS | SSE | SSE2)) == (MMX | MMX_EXTENSIONS | SSE | SSE2);
+	initialized = TRUE;
+    }
+
+    return sse2_present;
+}
+
+#endif
+
+#else /* __amd64__ */
+#ifdef USE_X86_MMX
+#define pixman_have_mmx() TRUE
+#endif
+#ifdef USE_SSE2
+#define pixman_have_sse2() TRUE
+#endif
+#endif /* __amd64__ */
+#endif
+
+static pixman_bool_t
+disabled (const char *name)
+{
+    const char *env;
+
+    if ((env = getenv ("PIXMAN_DISABLE")))
+    {
+	do
+	{
+	    const char *end;
+	    int len;
+
+	    if ((end = strchr (env, ' ')))
+		len = end - env;
+	    else
+		len = strlen (env);
+
+	    if (strlen (name) == len && strncmp (name, env, len) == 0)
+	    {
+		printf ("pixman: Disabled %s implementation\n", name);
+		return TRUE;
+	    }
+
+	    env += len;
+	}
+	while (*env++);
+    }
+
+    return FALSE;
+}
+
+pixman_implementation_t *
+_pixman_choose_implementation (void)
+{
+    pixman_implementation_t *imp;
+
+    imp = _pixman_implementation_create_general();
+
+    if (!disabled ("fast"))
+	imp = _pixman_implementation_create_fast_path (imp);
+
+#ifdef USE_X86_MMX
+    if (!disabled ("mmx") && pixman_have_mmx ())
+	imp = _pixman_implementation_create_mmx (imp);
+#endif
+
+#ifdef USE_SSE2
+    if (!disabled ("sse2") && pixman_have_sse2 ())
+	imp = _pixman_implementation_create_sse2 (imp);
+#endif
+
+#ifdef USE_ARM_SIMD
+    if (!disabled ("arm-simd") && pixman_have_arm_simd ())
+	imp = _pixman_implementation_create_arm_simd (imp);
+#endif
+
+#ifdef USE_ARM_IWMMXT
+    if (!disabled ("arm-iwmmxt") && pixman_have_arm_iwmmxt ())
+	imp = _pixman_implementation_create_mmx (imp);
+#endif
+
+#ifdef USE_ARM_NEON
+    if (!disabled ("arm-neon") && pixman_have_arm_neon ())
+	imp = _pixman_implementation_create_arm_neon (imp);
+#endif
+
+#ifdef USE_MIPS_DSPR2
+    if (!disabled ("mips-dspr2") && pixman_have_mips_dspr2 ())
+	imp = _pixman_implementation_create_mips_dspr2 (imp);
+#endif
+
+#ifdef USE_VMX
+    if (!disabled ("vmx") && pixman_have_vmx ())
+	imp = _pixman_implementation_create_vmx (imp);
+#endif
+
+    imp = _pixman_implementation_create_noop (imp);
+
+    return imp;
+}
+