xserver xkeyboard-config libX11 randrproto pixman glproto mesa git update 22 May 2011

7 files changed, 2114 insertions, 2001 deletions

diff --git a/pixman/pixman/Makefile.am b/pixman/pixman/Makefile.am
index be0826680..acc273145 100644
--- a/pixman/pixman/Makefile.am
+++ b/pixman/pixman/Makefile.am
@@ -1,128 +1,129 @@
-lib_LTLIBRARIES = libpixman-1.la
-libpixman_1_la_LDFLAGS = -version-info $(LT_VERSION_INFO) -no-undefined @PTHREAD_LDFLAGS@ 
-libpixman_1_la_LIBADD = @PTHREAD_LIBS@ @DEP_LIBS@ -lm
-libpixman_1_la_SOURCES =			\
-	pixman.h				\
-	pixman-accessor.h			\
-	pixman-access.c				\
-	pixman-access-accessors.c		\
-	pixman-cpu.c				\
-	pixman-gradient-walker.c		\
-	pixman-region16.c			\
-	pixman-region32.c			\
-	pixman-compiler.h			\
-	pixman-private.h			\
-	pixman-image.c				\
-	pixman-implementation.c			\
-	pixman-combine32.c			\
-	pixman-combine32.h			\
-	pixman-combine64.c			\
-	pixman-combine64.h			\
-	pixman-general.c			\
-	pixman.c				\
-	pixman-fast-path.c			\
-	pixman-fast-path.h			\
-	pixman-solid-fill.c			\
-	pixman-conical-gradient.c		\
-	pixman-linear-gradient.c		\
-	pixman-radial-gradient.c		\
-	pixman-bits-image.c			\
-	pixman-utils.c				\
-	pixman-edge.c				\
-	pixman-edge-accessors.c			\
-	pixman-edge-imp.h			\
-	pixman-trap.c				\
-	pixman-timer.c				\
-	pixman-matrix.c
-
-libpixmanincludedir = $(includedir)/pixman-1
-libpixmaninclude_HEADERS = pixman.h pixman-version.h
-noinst_LTLIBRARIES = 
-
-BUILT_SOURCES = pixman-combine32.h pixman-combine32.c pixman-combine64.h pixman-combine64.c
-
-pixman-combine32.c : pixman-combine.c.template pixman-combine32.h make-combine.pl
-	$(PERL) $(srcdir)/make-combine.pl 8 < $(srcdir)/pixman-combine.c.template > $@ || ($(RM) $@; exit 1)
-pixman-combine32.h : pixman-combine.h.template make-combine.pl
-	$(PERL) $(srcdir)/make-combine.pl 8 < $(srcdir)/pixman-combine.h.template > $@ || ($(RM) $@; exit 1)
-
-pixman-combine64.c : pixman-combine.c.template pixman-combine64.h make-combine.pl
-	$(PERL) $(srcdir)/make-combine.pl 16 < $(srcdir)/pixman-combine.c.template > $@ || ($(RM) $@; exit 1)
-pixman-combine64.h : pixman-combine.h.template make-combine.pl
-	$(PERL) $(srcdir)/make-combine.pl 16 < $(srcdir)/pixman-combine.h.template > $@ || ($(RM) $@; exit 1)
-
-EXTRA_DIST = Makefile.win32 pixman-combine.c.template make-combine.pl pixman-region.c \
-	pixman-combine.h.template solaris-hwcap.mapfile
-CLEANFILES = pixman-combine32.c pixman-combine64.c pixman-combine32.h pixman-combine64.h
-
-# mmx code
-if USE_MMX
-noinst_LTLIBRARIES += libpixman-mmx.la
-libpixman_mmx_la_SOURCES = \
-	pixman-mmx.c
-libpixman_mmx_la_CFLAGS = $(DEP_CFLAGS) $(MMX_CFLAGS)
-libpixman_mmx_la_LIBADD = $(DEP_LIBS)
-libpixman_1_la_LDFLAGS += $(MMX_LDFLAGS)
-libpixman_1_la_LIBADD += libpixman-mmx.la
-
-ASM_CFLAGS_mmx=$(MMX_CFLAGS)
-endif
-
-# vmx code
-if USE_VMX
-noinst_LTLIBRARIES += libpixman-vmx.la
-libpixman_vmx_la_SOURCES = \
-	pixman-vmx.c \
-	pixman-combine32.h
-libpixman_vmx_la_CFLAGS = $(DEP_CFLAGS) $(VMX_CFLAGS)
-libpixman_vmx_la_LIBADD = $(DEP_LIBS)
-libpixman_1_la_LIBADD += libpixman-vmx.la
-
-ASM_CFLAGS_vmx=$(VMX_CFLAGS)
-endif
-
-# sse2 code
-if USE_SSE2
-noinst_LTLIBRARIES += libpixman-sse2.la
-libpixman_sse2_la_SOURCES = \
-	pixman-sse2.c
-libpixman_sse2_la_CFLAGS = $(DEP_CFLAGS) $(SSE2_CFLAGS)
-libpixman_sse2_la_LIBADD = $(DEP_LIBS)
-libpixman_1_la_LDFLAGS += $(SSE2_LDFLAGS)
-libpixman_1_la_LIBADD += libpixman-sse2.la
-
-ASM_CFLAGS_sse2=$(SSE2_CFLAGS)
-endif
-
-# arm simd code
-if USE_ARM_SIMD
-noinst_LTLIBRARIES += libpixman-arm-simd.la
-libpixman_arm_simd_la_SOURCES = \
-	pixman-arm-simd.c	\
-	pixman-arm-common.h	\
-	pixman-arm-simd-asm.S
-libpixman_arm_simd_la_CFLAGS = $(DEP_CFLAGS)
-libpixman_arm_simd_la_LIBADD = $(DEP_LIBS)
-libpixman_1_la_LIBADD += libpixman-arm-simd.la
-
-ASM_CFLAGS_arm_simd=
-endif
-
-# arm neon code
-if USE_ARM_NEON
-noinst_LTLIBRARIES += libpixman-arm-neon.la
-libpixman_arm_neon_la_SOURCES = \
-        pixman-arm-neon.c	\
-        pixman-arm-common.h	\
-        pixman-arm-neon-asm.S	\
-		pixman-arm-neon-asm-bilinear.S \
-        pixman-arm-neon-asm.h
-libpixman_arm_neon_la_CFLAGS = $(DEP_CFLAGS)
-libpixman_arm_neon_la_LIBADD = $(DEP_LIBS)
-libpixman_1_la_LIBADD += libpixman-arm-neon.la
-
-ASM_CFLAGS_arm_neon=
-endif
-
-.c.s : $(libpixmaninclude_HEADERS) $(BUILT_SOURCES)
-	$(CC) $(CFLAGS) $(ASM_CFLAGS_$(@:pixman-%.s=%)) $(ASM_CFLAGS_$(@:pixman-arm-%.s=arm_%)) -DHAVE_CONFIG_H -I$(srcdir) -I$(builddir) -I$(top_builddir) -S -o $@ $<
+lib_LTLIBRARIES = libpixman-1.la

+libpixman_1_la_LDFLAGS = -version-info $(LT_VERSION_INFO) -no-undefined @PTHREAD_LDFLAGS@ 

+libpixman_1_la_LIBADD = @PTHREAD_LIBS@ @DEP_LIBS@ -lm

+libpixman_1_la_SOURCES =			\

+	pixman.h				\

+	pixman-accessor.h			\

+	pixman-access.c				\

+	pixman-access-accessors.c		\

+	pixman-cpu.c				\

+	pixman-gradient-walker.c		\

+	pixman-region16.c			\

+	pixman-region32.c			\

+	pixman-compiler.h			\

+	pixman-private.h			\

+	pixman-image.c				\

+	pixman-implementation.c			\

+	pixman-combine32.c			\

+	pixman-combine32.h			\

+	pixman-combine64.c			\

+	pixman-combine64.h			\

+	pixman-general.c			\

+	pixman.c				\

+	pixman-noop.c				\

+	pixman-fast-path.c			\

+	pixman-fast-path.h			\

+	pixman-solid-fill.c			\

+	pixman-conical-gradient.c		\

+	pixman-linear-gradient.c		\

+	pixman-radial-gradient.c		\

+	pixman-bits-image.c			\

+	pixman-utils.c				\

+	pixman-edge.c				\

+	pixman-edge-accessors.c			\

+	pixman-edge-imp.h			\

+	pixman-trap.c				\

+	pixman-timer.c				\

+	pixman-matrix.c

+

+libpixmanincludedir = $(includedir)/pixman-1

+libpixmaninclude_HEADERS = pixman.h pixman-version.h

+noinst_LTLIBRARIES = 

+

+BUILT_SOURCES = pixman-combine32.h pixman-combine32.c pixman-combine64.h pixman-combine64.c

+

+pixman-combine32.c : pixman-combine.c.template pixman-combine32.h make-combine.pl

+	$(PERL) $(srcdir)/make-combine.pl 8 < $(srcdir)/pixman-combine.c.template > $@ || ($(RM) $@; exit 1)

+pixman-combine32.h : pixman-combine.h.template make-combine.pl

+	$(PERL) $(srcdir)/make-combine.pl 8 < $(srcdir)/pixman-combine.h.template > $@ || ($(RM) $@; exit 1)

+

+pixman-combine64.c : pixman-combine.c.template pixman-combine64.h make-combine.pl

+	$(PERL) $(srcdir)/make-combine.pl 16 < $(srcdir)/pixman-combine.c.template > $@ || ($(RM) $@; exit 1)

+pixman-combine64.h : pixman-combine.h.template make-combine.pl

+	$(PERL) $(srcdir)/make-combine.pl 16 < $(srcdir)/pixman-combine.h.template > $@ || ($(RM) $@; exit 1)

+

+EXTRA_DIST = Makefile.win32 pixman-combine.c.template make-combine.pl pixman-region.c \

+	pixman-combine.h.template solaris-hwcap.mapfile

+CLEANFILES = pixman-combine32.c pixman-combine64.c pixman-combine32.h pixman-combine64.h

+

+# mmx code

+if USE_MMX

+noinst_LTLIBRARIES += libpixman-mmx.la

+libpixman_mmx_la_SOURCES = \

+	pixman-mmx.c

+libpixman_mmx_la_CFLAGS = $(DEP_CFLAGS) $(MMX_CFLAGS)

+libpixman_mmx_la_LIBADD = $(DEP_LIBS)

+libpixman_1_la_LDFLAGS += $(MMX_LDFLAGS)

+libpixman_1_la_LIBADD += libpixman-mmx.la

+

+ASM_CFLAGS_mmx=$(MMX_CFLAGS)

+endif

+

+# vmx code

+if USE_VMX

+noinst_LTLIBRARIES += libpixman-vmx.la

+libpixman_vmx_la_SOURCES = \

+	pixman-vmx.c \

+	pixman-combine32.h

+libpixman_vmx_la_CFLAGS = $(DEP_CFLAGS) $(VMX_CFLAGS)

+libpixman_vmx_la_LIBADD = $(DEP_LIBS)

+libpixman_1_la_LIBADD += libpixman-vmx.la

+

+ASM_CFLAGS_vmx=$(VMX_CFLAGS)

+endif

+

+# sse2 code

+if USE_SSE2

+noinst_LTLIBRARIES += libpixman-sse2.la

+libpixman_sse2_la_SOURCES = \

+	pixman-sse2.c

+libpixman_sse2_la_CFLAGS = $(DEP_CFLAGS) $(SSE2_CFLAGS)

+libpixman_sse2_la_LIBADD = $(DEP_LIBS)

+libpixman_1_la_LDFLAGS += $(SSE2_LDFLAGS)

+libpixman_1_la_LIBADD += libpixman-sse2.la

+

+ASM_CFLAGS_sse2=$(SSE2_CFLAGS)

+endif

+

+# arm simd code

+if USE_ARM_SIMD

+noinst_LTLIBRARIES += libpixman-arm-simd.la

+libpixman_arm_simd_la_SOURCES = \

+	pixman-arm-simd.c	\

+	pixman-arm-common.h	\

+	pixman-arm-simd-asm.S

+libpixman_arm_simd_la_CFLAGS = $(DEP_CFLAGS)

+libpixman_arm_simd_la_LIBADD = $(DEP_LIBS)

+libpixman_1_la_LIBADD += libpixman-arm-simd.la

+

+ASM_CFLAGS_arm_simd=

+endif

+

+# arm neon code

+if USE_ARM_NEON

+noinst_LTLIBRARIES += libpixman-arm-neon.la

+libpixman_arm_neon_la_SOURCES = \

+        pixman-arm-neon.c	\

+        pixman-arm-common.h	\

+        pixman-arm-neon-asm.S	\

+		pixman-arm-neon-asm-bilinear.S \

+        pixman-arm-neon-asm.h

+libpixman_arm_neon_la_CFLAGS = $(DEP_CFLAGS)

+libpixman_arm_neon_la_LIBADD = $(DEP_LIBS)

+libpixman_1_la_LIBADD += libpixman-arm-neon.la

+

+ASM_CFLAGS_arm_neon=

+endif

+

+.c.s : $(libpixmaninclude_HEADERS) $(BUILT_SOURCES)

+	$(CC) $(CFLAGS) $(ASM_CFLAGS_$(@:pixman-%.s=%)) $(ASM_CFLAGS_$(@:pixman-arm-%.s=arm_%)) -DHAVE_CONFIG_H -I$(srcdir) -I$(builddir) -I$(top_builddir) -S -o $@ $<

diff --git a/pixman/pixman/pixman-bits-image.c b/pixman/pixman/pixman-bits-image.c
index 88c2f0eea..40ccaa8bd 100644
--- a/pixman/pixman/pixman-bits-image.c
+++ b/pixman/pixman/pixman-bits-image.c
@@ -1462,43 +1462,22 @@ dest_write_back_wide (pixman_iter_t *iter)
     iter->y++;

 }

 

-static void

-dest_write_back_direct (pixman_iter_t *iter)

-{

-    iter->buffer += iter->image->bits.rowstride;

-}

-

 void

 _pixman_bits_image_dest_iter_init (pixman_image_t *image, pixman_iter_t *iter)

 {

     if (iter->flags & ITER_NARROW)

     {

-	if (((image->common.flags &

-	      (FAST_PATH_NO_ALPHA_MAP | FAST_PATH_NO_ACCESSORS)) ==

-	     (FAST_PATH_NO_ALPHA_MAP | FAST_PATH_NO_ACCESSORS)) &&

-	    (image->bits.format == PIXMAN_a8r8g8b8	||

-	     (image->bits.format == PIXMAN_x8r8g8b8	&&

-	      (iter->flags & ITER_LOCALIZED_ALPHA))))

+	if ((iter->flags & (ITER_IGNORE_RGB | ITER_IGNORE_ALPHA)) ==

+	    (ITER_IGNORE_RGB | ITER_IGNORE_ALPHA))

 	{

-	    iter->buffer = image->bits.bits + iter->y * image->bits.rowstride + iter->x;

-

 	    iter->get_scanline = _pixman_iter_get_scanline_noop;

-	    iter->write_back = dest_write_back_direct;

 	}

 	else

 	{

-	    if ((iter->flags & (ITER_IGNORE_RGB | ITER_IGNORE_ALPHA)) ==

-		(ITER_IGNORE_RGB | ITER_IGNORE_ALPHA))

-	    {

-		iter->get_scanline = _pixman_iter_get_scanline_noop;

-	    }

-	    else

-	    {

-		iter->get_scanline = dest_get_scanline_narrow;

-	    }

-

-	    iter->write_back = dest_write_back_narrow;

+	    iter->get_scanline = dest_get_scanline_narrow;

 	}

+	

+	iter->write_back = dest_write_back_narrow;

     }

     else

     {

diff --git a/pixman/pixman/pixman-cpu.c b/pixman/pixman/pixman-cpu.c
index 0e14ecb6f..77e5b7f7a 100644
--- a/pixman/pixman/pixman-cpu.c
+++ b/pixman/pixman/pixman-cpu.c
@@ -1,611 +1,613 @@
-/*
- * 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>
-
-#if defined(USE_ARM_SIMD) && defined(_MSC_VER)
-/* Needed for EXCEPTION_ILLEGAL_INSTRUCTION */
-#include <windows.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)
-
-#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 (__linux__) /* linux ELF */
-
-#include <stdlib.h>
-#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 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;
-
-static void
-pixman_arm_read_auxv ()
-{
-    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;
-}
-
-#if defined(USE_ARM_SIMD)
-pixman_bool_t
-pixman_have_arm_simd (void)
-{
-    if (!arm_tests_initialized)
-	pixman_arm_read_auxv ();
-
-    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 ();
-
-    return arm_has_neon;
-}
-
-#endif /* USE_ARM_NEON */
-
-#else /* linux ELF */
-
-#define pixman_have_arm_simd() FALSE
-#define pixman_have_arm_neon() FALSE
-
-#endif
-
-#endif /* USE_ARM_SIMD || USE_ARM_NEON */
-
-#if defined(USE_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;
-}
-
-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;
-}
-
-#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_MMX
-#define pixman_have_mmx() TRUE
-#endif
-#ifdef USE_SSE2
-#define pixman_have_sse2() TRUE
-#endif
-#endif /* __amd64__ */
-#endif
-
-pixman_implementation_t *
-_pixman_choose_implementation (void)
-{
-    pixman_implementation_t *imp;
-
-    imp = _pixman_implementation_create_general();
-    imp = _pixman_implementation_create_fast_path (imp);
-    
-#ifdef USE_MMX
-    if (pixman_have_mmx ())
-	imp = _pixman_implementation_create_mmx (imp);
-#endif
-
-#ifdef USE_SSE2
-    if (pixman_have_sse2 ())
-	imp = _pixman_implementation_create_sse2 (imp);
-#endif
-
-#ifdef USE_ARM_SIMD
-    if (pixman_have_arm_simd ())
-	imp = _pixman_implementation_create_arm_simd (imp);
-#endif
-
-#ifdef USE_ARM_NEON
-    if (pixman_have_arm_neon ())
-	imp = _pixman_implementation_create_arm_neon (imp);
-#endif
-    
-#ifdef USE_VMX
-    if (pixman_have_vmx ())
-	imp = _pixman_implementation_create_vmx (imp);
-#endif
-
-    return imp;
-}
-
+/*

+ * 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>

+

+#if defined(USE_ARM_SIMD) && defined(_MSC_VER)

+/* Needed for EXCEPTION_ILLEGAL_INSTRUCTION */

+#include <windows.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)

+

+#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 (__linux__) /* linux ELF */

+

+#include <stdlib.h>

+#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 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;

+

+static void

+pixman_arm_read_auxv ()

+{

+    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;

+}

+

+#if defined(USE_ARM_SIMD)

+pixman_bool_t

+pixman_have_arm_simd (void)

+{

+    if (!arm_tests_initialized)

+	pixman_arm_read_auxv ();

+

+    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 ();

+

+    return arm_has_neon;

+}

+

+#endif /* USE_ARM_NEON */

+

+#else /* linux ELF */

+

+#define pixman_have_arm_simd() FALSE

+#define pixman_have_arm_neon() FALSE

+

+#endif

+

+#endif /* USE_ARM_SIMD || USE_ARM_NEON */

+

+#if defined(USE_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;

+}

+

+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;

+}

+

+#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_MMX

+#define pixman_have_mmx() TRUE

+#endif

+#ifdef USE_SSE2

+#define pixman_have_sse2() TRUE

+#endif

+#endif /* __amd64__ */

+#endif

+

+pixman_implementation_t *

+_pixman_choose_implementation (void)

+{

+    pixman_implementation_t *imp;

+

+    imp = _pixman_implementation_create_general();

+    imp = _pixman_implementation_create_fast_path (imp);

+    

+#ifdef USE_MMX

+    if (pixman_have_mmx ())

+	imp = _pixman_implementation_create_mmx (imp);

+#endif

+

+#ifdef USE_SSE2

+    if (pixman_have_sse2 ())

+	imp = _pixman_implementation_create_sse2 (imp);

+#endif

+

+#ifdef USE_ARM_SIMD

+    if (pixman_have_arm_simd ())

+	imp = _pixman_implementation_create_arm_simd (imp);

+#endif

+

+#ifdef USE_ARM_NEON

+    if (pixman_have_arm_neon ())

+	imp = _pixman_implementation_create_arm_neon (imp);

+#endif

+    

+#ifdef USE_VMX

+    if (pixman_have_vmx ())

+	imp = _pixman_implementation_create_vmx (imp);

+#endif

+

+    imp = _pixman_implementation_create_noop (imp);

+    

+    return imp;

+}

+

diff --git a/pixman/pixman/pixman-implementation.c b/pixman/pixman/pixman-implementation.c
index caade9332..bbabec089 100644
--- a/pixman/pixman/pixman-implementation.c
+++ b/pixman/pixman/pixman-implementation.c
@@ -241,12 +241,6 @@ _pixman_implementation_fill (pixman_implementation_t *imp,
     return (*imp->fill) (imp, bits, stride, bpp, x, y, width, height, xor);

 }

 

-static uint32_t *

-get_scanline_null (pixman_iter_t *iter, const uint32_t *mask)

-{

-    return NULL;

-}

-

 void

 _pixman_implementation_src_iter_init (pixman_implementation_t	*imp,

 				      pixman_iter_t             *iter,

@@ -266,19 +260,7 @@ _pixman_implementation_src_iter_init (pixman_implementation_t	*imp,
     iter->height = height;

     iter->flags = flags;

 

-    if (!image)

-    {

-	iter->get_scanline = get_scanline_null;

-    }

-    else if ((flags & (ITER_IGNORE_ALPHA | ITER_IGNORE_RGB)) ==

-	     (ITER_IGNORE_ALPHA | ITER_IGNORE_RGB))

-    {

-	iter->get_scanline = _pixman_iter_get_scanline_noop;

-    }

-    else

-    {

-	(*imp->src_iter_init) (imp, iter);

-    }

+    (*imp->src_iter_init) (imp, iter);

 }

 

 void

diff --git a/pixman/pixman/pixman-noop.c b/pixman/pixman/pixman-noop.c
new file mode 100644
index 000000000..54ff17f87
--- /dev/null
+++ b/pixman/pixman/pixman-noop.c
@@ -0,0 +1,148 @@
+/* -*- Mode: c; c-basic-offset: 4; tab-width: 8; indent-tabs-mode: t; -*- */

+/*

+ * Copyright © 2011 Red Hat, Inc.

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice and this permission notice (including the next

+ * paragraph) shall be included in all copies or substantial portions of the

+ * Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER

+ * DEALINGS IN THE SOFTWARE.

+ */

+#ifdef HAVE_CONFIG_H

+#include <config.h>

+#endif

+#include <string.h>

+#include <stdlib.h>

+#include "pixman-private.h"

+#include "pixman-combine32.h"

+#include "pixman-fast-path.h"

+

+static void

+noop_composite (pixman_implementation_t *imp,

+		pixman_op_t              op,

+		pixman_image_t *         src,

+		pixman_image_t *         mask,

+		pixman_image_t *         dest,

+		int32_t                  src_x,

+		int32_t                  src_y,

+		int32_t                  mask_x,

+		int32_t                  mask_y,

+		int32_t                  dest_x,

+		int32_t                  dest_y,

+		int32_t                  width,

+		int32_t                  height)

+{

+    return;

+}

+

+static void

+dest_write_back_direct (pixman_iter_t *iter)

+{

+    iter->buffer += iter->image->bits.rowstride;

+}

+

+static uint32_t *

+noop_get_scanline (pixman_iter_t *iter, const uint32_t *mask)

+{

+    uint32_t *result = iter->buffer;

+

+    iter->buffer += iter->image->bits.rowstride;

+

+    return result;

+}

+

+static uint32_t *

+get_scanline_null (pixman_iter_t *iter, const uint32_t *mask)

+{

+    return NULL;

+}

+

+static void

+noop_src_iter_init (pixman_implementation_t *imp, pixman_iter_t *iter)

+{

+    pixman_image_t *image = iter->image;

+

+#define FLAGS						\

+    (FAST_PATH_STANDARD_FLAGS | FAST_PATH_ID_TRANSFORM)

+

+    if (!image)

+    {

+	iter->get_scanline = get_scanline_null;

+    }

+    else if ((iter->flags & (ITER_IGNORE_ALPHA | ITER_IGNORE_RGB)) ==

+	     (ITER_IGNORE_ALPHA | ITER_IGNORE_RGB))

+    {

+	iter->get_scanline = _pixman_iter_get_scanline_noop;

+    }

+    else if ((iter->flags & ITER_NARROW)				&&

+	     (image->common.flags & FLAGS) == FLAGS			&&

+	     iter->x >= 0 && iter->y >= 0				&&

+	     iter->x + iter->width <= image->bits.width			&&

+	     iter->y + iter->height <= image->bits.height		&&

+	     image->common.extended_format_code == PIXMAN_a8r8g8b8)

+    {

+	iter->buffer =

+	    image->bits.bits + iter->y * image->bits.rowstride + iter->x;

+

+	iter->get_scanline = noop_get_scanline;

+    }

+    else

+    {

+	(* imp->delegate->src_iter_init) (imp->delegate, iter);

+    }

+}

+

+static void

+noop_dest_iter_init (pixman_implementation_t *imp, pixman_iter_t *iter)

+{

+    pixman_image_t *image = iter->image;

+    uint32_t image_flags = image->common.flags;

+    uint32_t iter_flags = iter->flags;

+

+    if ((image_flags & FAST_PATH_STD_DEST_FLAGS) == FAST_PATH_STD_DEST_FLAGS	&&

+	(iter_flags & ITER_NARROW) == ITER_NARROW				&&

+	((image->common.extended_format_code == PIXMAN_a8r8g8b8)	||

+	 (image->common.extended_format_code == PIXMAN_x8r8g8b8 &&

+	  (iter_flags & (ITER_LOCALIZED_ALPHA)))))

+    {

+	iter->buffer = image->bits.bits + iter->y * image->bits.rowstride + iter->x;

+

+	iter->get_scanline = _pixman_iter_get_scanline_noop;

+	iter->write_back = dest_write_back_direct;

+    }

+    else

+    {

+	(* imp->delegate->dest_iter_init) (imp->delegate, iter);

+    }

+}

+

+static const pixman_fast_path_t noop_fast_paths[] =

+{

+    { PIXMAN_OP_DST, PIXMAN_any, 0, PIXMAN_any, 0, PIXMAN_any, 0, noop_composite },

+    { PIXMAN_OP_NONE },

+};

+

+pixman_implementation_t *

+_pixman_implementation_create_noop (pixman_implementation_t *fallback)

+{

+    pixman_implementation_t *imp =

+	_pixman_implementation_create (fallback, noop_fast_paths);

+

+    imp->src_iter_init = noop_src_iter_init;

+    imp->dest_iter_init = noop_dest_iter_init;

+

+    return imp;

+}

diff --git a/pixman/pixman/pixman-private.h b/pixman/pixman/pixman-private.h
index 658aeea8a..323ae5d1e 100644
--- a/pixman/pixman/pixman-private.h
+++ b/pixman/pixman/pixman-private.h
@@ -523,6 +523,9 @@ _pixman_implementation_create_general (void);
 pixman_implementation_t *

 _pixman_implementation_create_fast_path (pixman_implementation_t *fallback);

 

+pixman_implementation_t *

+_pixman_implementation_create_noop (pixman_implementation_t *fallback);

+

 #ifdef USE_MMX

 pixman_implementation_t *

 _pixman_implementation_create_mmx (pixman_implementation_t *fallback);

diff --git a/pixman/pixman/pixman.c b/pixman/pixman/pixman.c
index f21af2f36..7ccb2952f 100644
--- a/pixman/pixman/pixman.c
+++ b/pixman/pixman/pixman.c
@@ -1,1217 +1,1215 @@
-/* -*- Mode: c; c-basic-offset: 4; tab-width: 8; indent-tabs-mode: t; -*- */
-/*
- * 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.
- *
- * Author:  Keith Packard, SuSE, Inc.
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include "pixman-private.h"
-
-#include <stdlib.h>
-
-static pixman_implementation_t *global_implementation;
-
-#ifdef TOOLCHAIN_SUPPORTS_ATTRIBUTE_CONSTRUCTOR
-static void __attribute__((constructor))
-pixman_constructor (void)
-{
-    global_implementation = _pixman_choose_implementation ();
-}
-#endif
-
-static force_inline pixman_implementation_t *
-get_implementation (void)
-{
-#ifndef TOOLCHAIN_SUPPORTS_ATTRIBUTE_CONSTRUCTOR
-    if (!global_implementation)
-	global_implementation = _pixman_choose_implementation ();
-#endif
-    return global_implementation;
-}
-
-typedef struct operator_info_t operator_info_t;
-
-struct operator_info_t
-{
-    uint8_t	opaque_info[4];
-};
-
-#define PACK(neither, src, dest, both)			\
-    {{	    (uint8_t)PIXMAN_OP_ ## neither,		\
-	    (uint8_t)PIXMAN_OP_ ## src,			\
-	    (uint8_t)PIXMAN_OP_ ## dest,		\
-	    (uint8_t)PIXMAN_OP_ ## both		}}
-
-static const operator_info_t operator_table[] =
-{
-    /*    Neither Opaque         Src Opaque             Dst Opaque             Both Opaque */
-    PACK (CLEAR,                 CLEAR,                 CLEAR,                 CLEAR),
-    PACK (SRC,                   SRC,                   SRC,                   SRC),
-    PACK (DST,                   DST,                   DST,                   DST),
-    PACK (OVER,                  SRC,                   OVER,                  SRC),
-    PACK (OVER_REVERSE,          OVER_REVERSE,          DST,                   DST),
-    PACK (IN,                    IN,                    SRC,                   SRC),
-    PACK (IN_REVERSE,            DST,                   IN_REVERSE,            DST),
-    PACK (OUT,                   OUT,                   CLEAR,                 CLEAR),
-    PACK (OUT_REVERSE,           CLEAR,                 OUT_REVERSE,           CLEAR),
-    PACK (ATOP,                  IN,                    OVER,                  SRC),
-    PACK (ATOP_REVERSE,          OVER_REVERSE,          IN_REVERSE,            DST),
-    PACK (XOR,                   OUT,                   OUT_REVERSE,           CLEAR),
-    PACK (ADD,                   ADD,                   ADD,                   ADD),
-    PACK (SATURATE,              OVER_REVERSE,          DST,                   DST),
-
-    {{ 0 /* 0x0e */ }},
-    {{ 0 /* 0x0f */ }},
-
-    PACK (CLEAR,                 CLEAR,                 CLEAR,                 CLEAR),
-    PACK (SRC,                   SRC,                   SRC,                   SRC),
-    PACK (DST,                   DST,                   DST,                   DST),
-    PACK (DISJOINT_OVER,         DISJOINT_OVER,         DISJOINT_OVER,         DISJOINT_OVER),
-    PACK (DISJOINT_OVER_REVERSE, DISJOINT_OVER_REVERSE, DISJOINT_OVER_REVERSE, DISJOINT_OVER_REVERSE),
-    PACK (DISJOINT_IN,           DISJOINT_IN,           DISJOINT_IN,           DISJOINT_IN),
-    PACK (DISJOINT_IN_REVERSE,   DISJOINT_IN_REVERSE,   DISJOINT_IN_REVERSE,   DISJOINT_IN_REVERSE),
-    PACK (DISJOINT_OUT,          DISJOINT_OUT,          DISJOINT_OUT,          DISJOINT_OUT),
-    PACK (DISJOINT_OUT_REVERSE,  DISJOINT_OUT_REVERSE,  DISJOINT_OUT_REVERSE,  DISJOINT_OUT_REVERSE),
-    PACK (DISJOINT_ATOP,         DISJOINT_ATOP,         DISJOINT_ATOP,         DISJOINT_ATOP),
-    PACK (DISJOINT_ATOP_REVERSE, DISJOINT_ATOP_REVERSE, DISJOINT_ATOP_REVERSE, DISJOINT_ATOP_REVERSE),
-    PACK (DISJOINT_XOR,          DISJOINT_XOR,          DISJOINT_XOR,          DISJOINT_XOR),
-
-    {{ 0 /* 0x1c */ }},
-    {{ 0 /* 0x1d */ }},
-    {{ 0 /* 0x1e */ }},
-    {{ 0 /* 0x1f */ }},
-
-    PACK (CLEAR,                 CLEAR,                 CLEAR,                 CLEAR),
-    PACK (SRC,                   SRC,                   SRC,                   SRC),
-    PACK (DST,                   DST,                   DST,                   DST),
-    PACK (CONJOINT_OVER,         CONJOINT_OVER,         CONJOINT_OVER,         CONJOINT_OVER),
-    PACK (CONJOINT_OVER_REVERSE, CONJOINT_OVER_REVERSE, CONJOINT_OVER_REVERSE, CONJOINT_OVER_REVERSE),
-    PACK (CONJOINT_IN,           CONJOINT_IN,           CONJOINT_IN,           CONJOINT_IN),
-    PACK (CONJOINT_IN_REVERSE,   CONJOINT_IN_REVERSE,   CONJOINT_IN_REVERSE,   CONJOINT_IN_REVERSE),
-    PACK (CONJOINT_OUT,          CONJOINT_OUT,          CONJOINT_OUT,          CONJOINT_OUT),
-    PACK (CONJOINT_OUT_REVERSE,  CONJOINT_OUT_REVERSE,  CONJOINT_OUT_REVERSE,  CONJOINT_OUT_REVERSE),
-    PACK (CONJOINT_ATOP,         CONJOINT_ATOP,         CONJOINT_ATOP,         CONJOINT_ATOP),
-    PACK (CONJOINT_ATOP_REVERSE, CONJOINT_ATOP_REVERSE, CONJOINT_ATOP_REVERSE, CONJOINT_ATOP_REVERSE),
-    PACK (CONJOINT_XOR,          CONJOINT_XOR,          CONJOINT_XOR,          CONJOINT_XOR),
-
-    {{ 0 /* 0x2c */ }},
-    {{ 0 /* 0x2d */ }},
-    {{ 0 /* 0x2e */ }},
-    {{ 0 /* 0x2f */ }},
-
-    PACK (MULTIPLY,              MULTIPLY,              MULTIPLY,              MULTIPLY),
-    PACK (SCREEN,                SCREEN,                SCREEN,                SCREEN),
-    PACK (OVERLAY,               OVERLAY,               OVERLAY,               OVERLAY),
-    PACK (DARKEN,                DARKEN,                DARKEN,                DARKEN),
-    PACK (LIGHTEN,               LIGHTEN,               LIGHTEN,               LIGHTEN),
-    PACK (COLOR_DODGE,           COLOR_DODGE,           COLOR_DODGE,           COLOR_DODGE),
-    PACK (COLOR_BURN,            COLOR_BURN,            COLOR_BURN,            COLOR_BURN),
-    PACK (HARD_LIGHT,            HARD_LIGHT,            HARD_LIGHT,            HARD_LIGHT),
-    PACK (SOFT_LIGHT,            SOFT_LIGHT,            SOFT_LIGHT,            SOFT_LIGHT),
-    PACK (DIFFERENCE,            DIFFERENCE,            DIFFERENCE,            DIFFERENCE),
-    PACK (EXCLUSION,             EXCLUSION,             EXCLUSION,             EXCLUSION),
-    PACK (HSL_HUE,               HSL_HUE,               HSL_HUE,               HSL_HUE),
-    PACK (HSL_SATURATION,        HSL_SATURATION,        HSL_SATURATION,        HSL_SATURATION),
-    PACK (HSL_COLOR,             HSL_COLOR,             HSL_COLOR,             HSL_COLOR),
-    PACK (HSL_LUMINOSITY,        HSL_LUMINOSITY,        HSL_LUMINOSITY,        HSL_LUMINOSITY),
-};
-
-/*
- * Optimize the current operator based on opacity of source or destination
- * The output operator should be mathematically equivalent to the source.
- */
-static pixman_op_t
-optimize_operator (pixman_op_t     op,
-		   uint32_t        src_flags,
-		   uint32_t        mask_flags,
-		   uint32_t        dst_flags)
-{
-    pixman_bool_t is_source_opaque, is_dest_opaque;
-
-#define OPAQUE_SHIFT 13
-    
-    COMPILE_TIME_ASSERT (FAST_PATH_IS_OPAQUE == (1 << OPAQUE_SHIFT));
-    
-    is_dest_opaque = (dst_flags & FAST_PATH_IS_OPAQUE);
-    is_source_opaque = ((src_flags & mask_flags) & FAST_PATH_IS_OPAQUE);
-
-    is_dest_opaque >>= OPAQUE_SHIFT - 1;
-    is_source_opaque >>= OPAQUE_SHIFT;
-
-    return operator_table[op].opaque_info[is_dest_opaque | is_source_opaque];
-}
-
-/*
- * Computing composite region
- */
-static inline pixman_bool_t
-clip_general_image (pixman_region32_t * region,
-                    pixman_region32_t * clip,
-                    int                 dx,
-                    int                 dy)
-{
-    if (pixman_region32_n_rects (region) == 1 &&
-        pixman_region32_n_rects (clip) == 1)
-    {
-	pixman_box32_t *  rbox = pixman_region32_rectangles (region, NULL);
-	pixman_box32_t *  cbox = pixman_region32_rectangles (clip, NULL);
-	int v;
-
-	if (rbox->x1 < (v = cbox->x1 + dx))
-	    rbox->x1 = v;
-	if (rbox->x2 > (v = cbox->x2 + dx))
-	    rbox->x2 = v;
-	if (rbox->y1 < (v = cbox->y1 + dy))
-	    rbox->y1 = v;
-	if (rbox->y2 > (v = cbox->y2 + dy))
-	    rbox->y2 = v;
-	if (rbox->x1 >= rbox->x2 || rbox->y1 >= rbox->y2)
-	{
-	    pixman_region32_init (region);
-	    return FALSE;
-	}
-    }
-    else if (!pixman_region32_not_empty (clip))
-    {
-	return FALSE;
-    }
-    else
-    {
-	if (dx || dy)
-	    pixman_region32_translate (region, -dx, -dy);
-
-	if (!pixman_region32_intersect (region, region, clip))
-	    return FALSE;
-
-	if (dx || dy)
-	    pixman_region32_translate (region, dx, dy);
-    }
-
-    return pixman_region32_not_empty (region);
-}
-
-static inline pixman_bool_t
-clip_source_image (pixman_region32_t * region,
-                   pixman_image_t *    image,
-                   int                 dx,
-                   int                 dy)
-{
-    /* Source clips are ignored, unless they are explicitly turned on
-     * and the clip in question was set by an X client. (Because if
-     * the clip was not set by a client, then it is a hierarchy
-     * clip and those should always be ignored for sources).
-     */
-    if (!image->common.clip_sources || !image->common.client_clip)
-	return TRUE;
-
-    return clip_general_image (region,
-                               &image->common.clip_region,
-                               dx, dy);
-}
-
-/*
- * returns FALSE if the final region is empty.  Indistinguishable from
- * an allocation failure, but rendering ignores those anyways.
- */
-static pixman_bool_t
-pixman_compute_composite_region32 (pixman_region32_t * region,
-                                   pixman_image_t *    src_image,
-                                   pixman_image_t *    mask_image,
-                                   pixman_image_t *    dst_image,
-                                   int32_t             src_x,
-                                   int32_t             src_y,
-                                   int32_t             mask_x,
-                                   int32_t             mask_y,
-                                   int32_t             dest_x,
-                                   int32_t             dest_y,
-                                   int32_t             width,
-                                   int32_t             height)
-{
-    region->extents.x1 = dest_x;
-    region->extents.x2 = dest_x + width;
-    region->extents.y1 = dest_y;
-    region->extents.y2 = dest_y + height;
-
-    region->extents.x1 = MAX (region->extents.x1, 0);
-    region->extents.y1 = MAX (region->extents.y1, 0);
-    region->extents.x2 = MIN (region->extents.x2, dst_image->bits.width);
-    region->extents.y2 = MIN (region->extents.y2, dst_image->bits.height);
-
-    region->data = 0;
-
-    /* Check for empty operation */
-    if (region->extents.x1 >= region->extents.x2 ||
-        region->extents.y1 >= region->extents.y2)
-    {
-	region->extents.x1 = 0;
-	region->extents.x2 = 0;
-	region->extents.y1 = 0;
-	region->extents.y2 = 0;
-	return FALSE;
-    }
-
-    if (dst_image->common.have_clip_region)
-    {
-	if (!clip_general_image (region, &dst_image->common.clip_region, 0, 0))
-	    return FALSE;
-    }
-
-    if (dst_image->common.alpha_map)
-    {
-	if (!pixman_region32_intersect_rect (region, region,
-					     dst_image->common.alpha_origin_x,
-					     dst_image->common.alpha_origin_y,
-					     dst_image->common.alpha_map->width,
-					     dst_image->common.alpha_map->height))
-	{
-	    return FALSE;
-	}
-	if (!pixman_region32_not_empty (region))
-	    return FALSE;
-	if (dst_image->common.alpha_map->common.have_clip_region)
-	{
-	    if (!clip_general_image (region, &dst_image->common.alpha_map->common.clip_region,
-				     -dst_image->common.alpha_origin_x,
-				     -dst_image->common.alpha_origin_y))
-	    {
-		return FALSE;
-	    }
-	}
-    }
-
-    /* clip against src */
-    if (src_image->common.have_clip_region)
-    {
-	if (!clip_source_image (region, src_image, dest_x - src_x, dest_y - src_y))
-	    return FALSE;
-    }
-    if (src_image->common.alpha_map && src_image->common.alpha_map->common.have_clip_region)
-    {
-	if (!clip_source_image (region, (pixman_image_t *)src_image->common.alpha_map,
-	                        dest_x - (src_x - src_image->common.alpha_origin_x),
-	                        dest_y - (src_y - src_image->common.alpha_origin_y)))
-	{
-	    return FALSE;
-	}
-    }
-    /* clip against mask */
-    if (mask_image && mask_image->common.have_clip_region)
-    {
-	if (!clip_source_image (region, mask_image, dest_x - mask_x, dest_y - mask_y))
-	    return FALSE;
-
-	if (mask_image->common.alpha_map && mask_image->common.alpha_map->common.have_clip_region)
-	{
-	    if (!clip_source_image (region, (pixman_image_t *)mask_image->common.alpha_map,
-	                            dest_x - (mask_x - mask_image->common.alpha_origin_x),
-	                            dest_y - (mask_y - mask_image->common.alpha_origin_y)))
-	    {
-		return FALSE;
-	    }
-	}
-    }
-
-    return TRUE;
-}
-
-#define N_CACHED_FAST_PATHS 8
-
-typedef struct
-{
-    struct
-    {
-	pixman_implementation_t *	imp;
-	pixman_fast_path_t		fast_path;
-    } cache [N_CACHED_FAST_PATHS];
-} cache_t;
-
-PIXMAN_DEFINE_THREAD_LOCAL (cache_t, fast_path_cache);
-
-static force_inline pixman_bool_t
-lookup_composite_function (pixman_op_t			op,
-			   pixman_format_code_t		src_format,
-			   uint32_t			src_flags,
-			   pixman_format_code_t		mask_format,
-			   uint32_t			mask_flags,
-			   pixman_format_code_t		dest_format,
-			   uint32_t			dest_flags,
-			   pixman_implementation_t    **out_imp,
-			   pixman_composite_func_t     *out_func)
-{
-    pixman_implementation_t *imp;
-    cache_t *cache;
-    int i;
-
-    /* Check cache for fast paths */
-    cache = PIXMAN_GET_THREAD_LOCAL (fast_path_cache);
-
-    for (i = 0; i < N_CACHED_FAST_PATHS; ++i)
-    {
-	const pixman_fast_path_t *info = &(cache->cache[i].fast_path);
-
-	/* Note that we check for equality here, not whether
-	 * the cached fast path matches. This is to prevent
-	 * us from selecting an overly general fast path
-	 * when a more specific one would work.
-	 */
-	if (info->op == op			&&
-	    info->src_format == src_format	&&
-	    info->mask_format == mask_format	&&
-	    info->dest_format == dest_format	&&
-	    info->src_flags == src_flags	&&
-	    info->mask_flags == mask_flags	&&
-	    info->dest_flags == dest_flags	&&
-	    info->func)
-	{
-	    *out_imp = cache->cache[i].imp;
-	    *out_func = cache->cache[i].fast_path.func;
-
-	    goto update_cache;
-	}
-    }
-
-    for (imp = get_implementation (); imp != NULL; imp = imp->delegate)
-    {
-	const pixman_fast_path_t *info = imp->fast_paths;
-
-	while (info->op != PIXMAN_OP_NONE)
-	{
-	    if ((info->op == op || info->op == PIXMAN_OP_any)		&&
-		/* Formats */
-		((info->src_format == src_format) ||
-		 (info->src_format == PIXMAN_any))			&&
-		((info->mask_format == mask_format) ||
-		 (info->mask_format == PIXMAN_any))			&&
-		((info->dest_format == dest_format) ||
-		 (info->dest_format == PIXMAN_any))			&&
-		/* Flags */
-		(info->src_flags & src_flags) == info->src_flags	&&
-		(info->mask_flags & mask_flags) == info->mask_flags	&&
-		(info->dest_flags & dest_flags) == info->dest_flags)
-	    {
-		*out_imp = imp;
-		*out_func = info->func;
-
-		/* Set i to the last spot in the cache so that the
-		 * move-to-front code below will work
-		 */
-		i = N_CACHED_FAST_PATHS - 1;
-
-		goto update_cache;
-	    }
-
-	    ++info;
-	}
-    }
-    return FALSE;
-
-update_cache:
-    if (i)
-    {
-	while (i--)
-	    cache->cache[i + 1] = cache->cache[i];
-
-	cache->cache[0].imp = *out_imp;
-	cache->cache[0].fast_path.op = op;
-	cache->cache[0].fast_path.src_format = src_format;
-	cache->cache[0].fast_path.src_flags = src_flags;
-	cache->cache[0].fast_path.mask_format = mask_format;
-	cache->cache[0].fast_path.mask_flags = mask_flags;
-	cache->cache[0].fast_path.dest_format = dest_format;
-	cache->cache[0].fast_path.dest_flags = dest_flags;
-	cache->cache[0].fast_path.func = *out_func;
-    }
-
-    return TRUE;
-}
-
-static pixman_bool_t
-compute_sample_extents (pixman_transform_t *transform,
-			pixman_box32_t *extents, int x, int y, 
-			pixman_fixed_t x_off, pixman_fixed_t y_off,
-			pixman_fixed_t width, pixman_fixed_t height)
-{
-    pixman_fixed_t x1, y1, x2, y2;
-    pixman_fixed_48_16_t tx1, ty1, tx2, ty2;
-
-    /* We have checked earlier that (extents->x1 - x) etc. fit in a pixman_fixed_t */
-    x1 = (pixman_fixed_48_16_t)pixman_int_to_fixed (extents->x1 - x) + pixman_fixed_1 / 2;
-    y1 = (pixman_fixed_48_16_t)pixman_int_to_fixed (extents->y1 - y) + pixman_fixed_1 / 2;
-    x2 = (pixman_fixed_48_16_t)pixman_int_to_fixed (extents->x2 - x) - pixman_fixed_1 / 2;
-    y2 = (pixman_fixed_48_16_t)pixman_int_to_fixed (extents->y2 - y) - pixman_fixed_1 / 2;
-
-    if (!transform)
-    {
-	tx1 = (pixman_fixed_48_16_t)x1;
-	ty1 = (pixman_fixed_48_16_t)y1;
-	tx2 = (pixman_fixed_48_16_t)x2;
-	ty2 = (pixman_fixed_48_16_t)y2;
-    }
-    else
-    {
-	int i;
-
-	/* Silence GCC */
-	tx1 = ty1 = tx2 = ty2 = 0;
-    
-	for (i = 0; i < 4; ++i)
-	{
-	    pixman_fixed_48_16_t tx, ty;
-	    pixman_vector_t v;
-
-	    v.vector[0] = (i & 0x01)? x1 : x2;
-	    v.vector[1] = (i & 0x02)? y1 : y2;
-	    v.vector[2] = pixman_fixed_1;
-
-	    if (!pixman_transform_point (transform, &v))
-		return FALSE;
-
-	    tx = (pixman_fixed_48_16_t)v.vector[0];
-	    ty = (pixman_fixed_48_16_t)v.vector[1];
-
-	    if (i == 0)
-	    {
-		tx1 = tx;
-		ty1 = ty;
-		tx2 = tx;
-		ty2 = ty;
-	    }
-	    else
-	    {
-		if (tx < tx1)
-		    tx1 = tx;
-		if (ty < ty1)
-		    ty1 = ty;
-		if (tx > tx2)
-		    tx2 = tx;
-		if (ty > ty2)
-		    ty2 = ty;
-	    }
-	}
-    }
-
-    /* Expand the source area by a tiny bit so account of different rounding that
-     * may happen during sampling. Note that (8 * pixman_fixed_e) is very far from
-     * 0.5 so this won't cause the area computed to be overly pessimistic.
-     */
-    tx1 += x_off - 8 * pixman_fixed_e;
-    ty1 += y_off - 8 * pixman_fixed_e;
-    tx2 += x_off + width + 8 * pixman_fixed_e;
-    ty2 += y_off + height + 8 * pixman_fixed_e;
-
-    if (tx1 < pixman_min_fixed_48_16 || tx1 > pixman_max_fixed_48_16 ||
-	ty1 < pixman_min_fixed_48_16 || ty1 > pixman_max_fixed_48_16 ||
-	tx2 < pixman_min_fixed_48_16 || tx2 > pixman_max_fixed_48_16 ||
-	ty2 < pixman_min_fixed_48_16 || ty2 > pixman_max_fixed_48_16)
-    {
-	return FALSE;
-    }
-    else
-    {
-	extents->x1 = pixman_fixed_to_int (tx1);
-	extents->y1 = pixman_fixed_to_int (ty1);
-	extents->x2 = pixman_fixed_to_int (tx2) + 1;
-	extents->y2 = pixman_fixed_to_int (ty2) + 1;
-
-	return TRUE;
-    }
-}
-
-#define IS_16BIT(x) (((x) >= INT16_MIN) && ((x) <= INT16_MAX))
-
-static pixman_bool_t
-analyze_extent (pixman_image_t *image, int x, int y,
-		const pixman_box32_t *extents, uint32_t *flags)
-{
-    pixman_transform_t *transform;
-    pixman_fixed_t *params;
-    pixman_fixed_t x_off, y_off;
-    pixman_fixed_t width, height;
-    pixman_box32_t ex;
-
-    if (!image)
-	return TRUE;
-
-    /* Some compositing functions walk one step
-     * outside the destination rectangle, so we
-     * check here that the expanded-by-one source
-     * extents in destination space fits in 16 bits
-     */
-    if (!IS_16BIT (extents->x1 - x - 1)		||
-	!IS_16BIT (extents->y1 - y - 1)		||
-	!IS_16BIT (extents->x2 - x + 1)		||
-	!IS_16BIT (extents->y2 - y + 1))
-    {
-	return FALSE;
-    }
-
-    transform = image->common.transform;
-    if (image->common.type == BITS)
-    {
-	/* During repeat mode calculations we might convert the
-	 * width/height of an image to fixed 16.16, so we need
-	 * them to be smaller than 16 bits.
-	 */
-	if (image->bits.width >= 0x7fff	|| image->bits.height >= 0x7fff)
-	    return FALSE;
-
-#define ID_AND_NEAREST (FAST_PATH_ID_TRANSFORM | FAST_PATH_NEAREST_FILTER)
-	
-	if ((image->common.flags & ID_AND_NEAREST) == ID_AND_NEAREST &&
-	    extents->x1 - x >= 0 &&
-	    extents->y1 - y >= 0 &&
-	    extents->x2 - x <= image->bits.width &&
-	    extents->y2 - y <= image->bits.height)
-	{
-	    *flags |= FAST_PATH_SAMPLES_COVER_CLIP;
-	    return TRUE;
-	}
-    
-	switch (image->common.filter)
-	{
-	case PIXMAN_FILTER_CONVOLUTION:
-	    params = image->common.filter_params;
-	    x_off = - pixman_fixed_e - ((params[0] - pixman_fixed_1) >> 1);
-	    y_off = - pixman_fixed_e - ((params[1] - pixman_fixed_1) >> 1);
-	    width = params[0];
-	    height = params[1];
-	    break;
-
-	case PIXMAN_FILTER_GOOD:
-	case PIXMAN_FILTER_BEST:
-	case PIXMAN_FILTER_BILINEAR:
-	    x_off = - pixman_fixed_1 / 2;
-	    y_off = - pixman_fixed_1 / 2;
-	    width = pixman_fixed_1;
-	    height = pixman_fixed_1;
-	    break;
-
-	case PIXMAN_FILTER_FAST:
-	case PIXMAN_FILTER_NEAREST:
-	    x_off = - pixman_fixed_e;
-	    y_off = - pixman_fixed_e;
-	    width = 0;
-	    height = 0;
-	    break;
-
-	default:
-	    return FALSE;
-	}
-
-	/* Check whether the non-expanded, transformed extent is entirely within
-	 * the source image, and set the FAST_PATH_SAMPLES_COVER_CLIP if it is.
-	 */
-	ex = *extents;
-	if (compute_sample_extents (transform, &ex, x, y, x_off, y_off, width, height) &&
-	    ex.x1 >= 0 && ex.y1 >= 0 &&
-	    ex.x2 <= image->bits.width && ex.y2 <= image->bits.height)
-	{
-	    *flags |= FAST_PATH_SAMPLES_COVER_CLIP;
-	}
-    }
-    else
-    {
-	x_off = 0;
-	y_off = 0;
-	width = 0;
-	height = 0;
-    }
-
-    /* Check that the extents expanded by one don't overflow. This ensures that
-     * compositing functions can simply walk the source space using 16.16
-     * variables without worrying about overflow.
-     */
-    ex.x1 = extents->x1 - 1;
-    ex.y1 = extents->y1 - 1;
-    ex.x2 = extents->x2 + 1;
-    ex.y2 = extents->y2 + 1;
-
-    if (!compute_sample_extents (transform, &ex, x, y, x_off, y_off, width, height))
-	return FALSE;
-
-    return TRUE;
-}
-
-/*
- * Work around GCC bug causing crashes in Mozilla with SSE2
- *
- * When using -msse, gcc generates movdqa instructions assuming that
- * the stack is 16 byte aligned. Unfortunately some applications, such
- * as Mozilla and Mono, end up aligning the stack to 4 bytes, which
- * causes the movdqa instructions to fail.
- *
- * The __force_align_arg_pointer__ makes gcc generate a prologue that
- * realigns the stack pointer to 16 bytes.
- *
- * On x86-64 this is not necessary because the standard ABI already
- * calls for a 16 byte aligned stack.
- *
- * See https://bugs.freedesktop.org/show_bug.cgi?id=15693
- */
-#if defined (USE_SSE2) && defined(__GNUC__) && !defined(__x86_64__) && !defined(__amd64__)
-__attribute__((__force_align_arg_pointer__))
-#endif
-PIXMAN_EXPORT void
-pixman_image_composite32 (pixman_op_t      op,
-                          pixman_image_t * src,
-                          pixman_image_t * mask,
-                          pixman_image_t * dest,
-                          int32_t          src_x,
-                          int32_t          src_y,
-                          int32_t          mask_x,
-                          int32_t          mask_y,
-                          int32_t          dest_x,
-                          int32_t          dest_y,
-                          int32_t          width,
-                          int32_t          height)
-{
-    pixman_format_code_t src_format, mask_format, dest_format;
-    uint32_t src_flags, mask_flags, dest_flags;
-    pixman_region32_t region;
-    pixman_box32_t *extents;
-    pixman_implementation_t *imp;
-    pixman_composite_func_t func;
-
-    _pixman_image_validate (src);
-    if (mask)
-	_pixman_image_validate (mask);
-    _pixman_image_validate (dest);
-
-    src_format = src->common.extended_format_code;
-    src_flags = src->common.flags;
-
-    if (mask)
-    {
-	mask_format = mask->common.extended_format_code;
-	mask_flags = mask->common.flags;
-    }
-    else
-    {
-	mask_format = PIXMAN_null;
-	mask_flags = FAST_PATH_IS_OPAQUE;
-    }
-
-    dest_format = dest->common.extended_format_code;
-    dest_flags = dest->common.flags;
-
-    /* Check for pixbufs */
-    if ((mask_format == PIXMAN_a8r8g8b8 || mask_format == PIXMAN_a8b8g8r8) &&
-	(src->type == BITS && src->bits.bits == mask->bits.bits)	   &&
-	(src->common.repeat == mask->common.repeat)			   &&
-	(src_x == mask_x && src_y == mask_y))
-    {
-	if (src_format == PIXMAN_x8b8g8r8)
-	    src_format = mask_format = PIXMAN_pixbuf;
-	else if (src_format == PIXMAN_x8r8g8b8)
-	    src_format = mask_format = PIXMAN_rpixbuf;
-    }
-
-    pixman_region32_init (&region);
-
-    if (!pixman_compute_composite_region32 (
-	    &region, src, mask, dest,
-	    src_x, src_y, mask_x, mask_y, dest_x, dest_y, width, height))
-    {
-	goto out;
-    }
-
-    extents = pixman_region32_extents (&region);
-
-    if (!analyze_extent (src, dest_x - src_x, dest_y - src_y, extents, &src_flags))
-	goto out;
-
-    if (!analyze_extent (mask, dest_x - mask_x, dest_y - mask_y, extents, &mask_flags))
-	goto out;
-
-    /* If the clip is within the source samples, and the samples are opaque,
-     * then the source is effectively opaque.
-     */
-#define BOTH (FAST_PATH_SAMPLES_OPAQUE | FAST_PATH_SAMPLES_COVER_CLIP)
-
-    if ((src_flags & BOTH) == BOTH)
-	src_flags |= FAST_PATH_IS_OPAQUE;
-    
-    if ((mask_flags & BOTH) == BOTH)
-	mask_flags |= FAST_PATH_IS_OPAQUE;
-    
-    /*
-     * Check if we can replace our operator by a simpler one
-     * if the src or dest are opaque. The output operator should be
-     * mathematically equivalent to the source.
-     */
-    op = optimize_operator (op, src_flags, mask_flags, dest_flags);
-    if (op == PIXMAN_OP_DST)
-	goto out;
-
-    if (lookup_composite_function (op,
-				   src_format, src_flags,
-				   mask_format, mask_flags,
-				   dest_format, dest_flags,
-				   &imp, &func))
-    {
-	const pixman_box32_t *pbox;
-	int n;
-
-	pbox = pixman_region32_rectangles (&region, &n);
-	
-	while (n--)
-	{
-	    func (imp, op,
-		  src, mask, dest,
-		  pbox->x1 + src_x - dest_x,
-		  pbox->y1 + src_y - dest_y,
-		  pbox->x1 + mask_x - dest_x,
-		  pbox->y1 + mask_y - dest_y,
-		  pbox->x1,
-		  pbox->y1,
-		  pbox->x2 - pbox->x1,
-		  pbox->y2 - pbox->y1);
-	    
-	    pbox++;
-	}
-    }
-
-out:
-    pixman_region32_fini (&region);
-}
-
-PIXMAN_EXPORT void
-pixman_image_composite (pixman_op_t      op,
-                        pixman_image_t * src,
-                        pixman_image_t * mask,
-                        pixman_image_t * dest,
-                        int16_t          src_x,
-                        int16_t          src_y,
-                        int16_t          mask_x,
-                        int16_t          mask_y,
-                        int16_t          dest_x,
-                        int16_t          dest_y,
-                        uint16_t         width,
-                        uint16_t         height)
-{
-    pixman_image_composite32 (op, src, mask, dest, src_x, src_y, 
-                              mask_x, mask_y, dest_x, dest_y, width, height);
-}
-
-PIXMAN_EXPORT pixman_bool_t
-pixman_blt (uint32_t *src_bits,
-            uint32_t *dst_bits,
-            int       src_stride,
-            int       dst_stride,
-            int       src_bpp,
-            int       dst_bpp,
-            int       src_x,
-            int       src_y,
-            int       dst_x,
-            int       dst_y,
-            int       width,
-            int       height)
-{
-    return _pixman_implementation_blt (get_implementation(),
-				       src_bits, dst_bits, src_stride, dst_stride,
-                                       src_bpp, dst_bpp,
-                                       src_x, src_y,
-                                       dst_x, dst_y,
-                                       width, height);
-}
-
-PIXMAN_EXPORT pixman_bool_t
-pixman_fill (uint32_t *bits,
-             int       stride,
-             int       bpp,
-             int       x,
-             int       y,
-             int       width,
-             int       height,
-             uint32_t xor)
-{
-    return _pixman_implementation_fill (
-	get_implementation(), bits, stride, bpp, x, y, width, height, xor);
-}
-
-static uint32_t
-color_to_uint32 (const pixman_color_t *color)
-{
-    return
-        (color->alpha >> 8 << 24) |
-        (color->red >> 8 << 16) |
-        (color->green & 0xff00) |
-        (color->blue >> 8);
-}
-
-static pixman_bool_t
-color_to_pixel (pixman_color_t *     color,
-                uint32_t *           pixel,
-                pixman_format_code_t format)
-{
-    uint32_t c = color_to_uint32 (color);
-
-    if (!(format == PIXMAN_a8r8g8b8     ||
-          format == PIXMAN_x8r8g8b8     ||
-          format == PIXMAN_a8b8g8r8     ||
-          format == PIXMAN_x8b8g8r8     ||
-          format == PIXMAN_b8g8r8a8     ||
-          format == PIXMAN_b8g8r8x8     ||
-          format == PIXMAN_r8g8b8a8     ||
-          format == PIXMAN_r8g8b8x8     ||
-          format == PIXMAN_r5g6b5       ||
-          format == PIXMAN_b5g6r5       ||
-          format == PIXMAN_a8           ||
-          format == PIXMAN_a1))
-    {
-	return FALSE;
-    }
-
-    if (PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_ABGR)
-    {
-	c = ((c & 0xff000000) >>  0) |
-	    ((c & 0x00ff0000) >> 16) |
-	    ((c & 0x0000ff00) >>  0) |
-	    ((c & 0x000000ff) << 16);
-    }
-    if (PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_BGRA)
-    {
-	c = ((c & 0xff000000) >> 24) |
-	    ((c & 0x00ff0000) >>  8) |
-	    ((c & 0x0000ff00) <<  8) |
-	    ((c & 0x000000ff) << 24);
-    }
-    if (PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_RGBA)
-	c = ((c & 0xff000000) >> 24) | (c << 8);
-
-    if (format == PIXMAN_a1)
-	c = c >> 31;
-    else if (format == PIXMAN_a8)
-	c = c >> 24;
-    else if (format == PIXMAN_r5g6b5 ||
-             format == PIXMAN_b5g6r5)
-	c = CONVERT_8888_TO_0565 (c);
-
-#if 0
-    printf ("color: %x %x %x %x\n", color->alpha, color->red, color->green, color->blue);
-    printf ("pixel: %x\n", c);
-#endif
-
-    *pixel = c;
-    return TRUE;
-}
-
-PIXMAN_EXPORT pixman_bool_t
-pixman_image_fill_rectangles (pixman_op_t                 op,
-                              pixman_image_t *            dest,
-                              pixman_color_t *            color,
-                              int                         n_rects,
-                              const pixman_rectangle16_t *rects)
-{
-    pixman_box32_t stack_boxes[6];
-    pixman_box32_t *boxes;
-    pixman_bool_t result;
-    int i;
-
-    if (n_rects > 6)
-    {
-        boxes = pixman_malloc_ab (sizeof (pixman_box32_t), n_rects);
-        if (boxes == NULL)
-            return FALSE;
-    }
-    else
-    {
-        boxes = stack_boxes;
-    }
-
-    for (i = 0; i < n_rects; ++i)
-    {
-        boxes[i].x1 = rects[i].x;
-        boxes[i].y1 = rects[i].y;
-        boxes[i].x2 = boxes[i].x1 + rects[i].width;
-        boxes[i].y2 = boxes[i].y1 + rects[i].height;
-    }
-
-    result = pixman_image_fill_boxes (op, dest, color, n_rects, boxes);
-
-    if (boxes != stack_boxes)
-        free (boxes);
-    
-    return result;
-}
-
-PIXMAN_EXPORT pixman_bool_t
-pixman_image_fill_boxes (pixman_op_t           op,
-                         pixman_image_t *      dest,
-                         pixman_color_t *      color,
-                         int                   n_boxes,
-                         const pixman_box32_t *boxes)
-{
-    pixman_image_t *solid;
-    pixman_color_t c;
-    int i;
-
-    _pixman_image_validate (dest);
-    
-    if (color->alpha == 0xffff)
-    {
-        if (op == PIXMAN_OP_OVER)
-            op = PIXMAN_OP_SRC;
-    }
-
-    if (op == PIXMAN_OP_CLEAR)
-    {
-        c.red = 0;
-        c.green = 0;
-        c.blue = 0;
-        c.alpha = 0;
-
-        color = &c;
-
-        op = PIXMAN_OP_SRC;
-    }
-
-    if (op == PIXMAN_OP_SRC)
-    {
-        uint32_t pixel;
-
-        if (color_to_pixel (color, &pixel, dest->bits.format))
-        {
-            pixman_region32_t fill_region;
-            int n_rects, j;
-            pixman_box32_t *rects;
-
-            if (!pixman_region32_init_rects (&fill_region, boxes, n_boxes))
-                return FALSE;
-
-            if (dest->common.have_clip_region)
-            {
-                if (!pixman_region32_intersect (&fill_region,
-                                                &fill_region,
-                                                &dest->common.clip_region))
-                    return FALSE;
-            }
-
-            rects = pixman_region32_rectangles (&fill_region, &n_rects);
-            for (j = 0; j < n_rects; ++j)
-            {
-                const pixman_box32_t *rect = &(rects[j]);
-                pixman_fill (dest->bits.bits, dest->bits.rowstride, PIXMAN_FORMAT_BPP (dest->bits.format),
-                             rect->x1, rect->y1, rect->x2 - rect->x1, rect->y2 - rect->y1,
-                             pixel);
-            }
-
-            pixman_region32_fini (&fill_region);
-            return TRUE;
-        }
-    }
-
-    solid = pixman_image_create_solid_fill (color);
-    if (!solid)
-        return FALSE;
-
-    for (i = 0; i < n_boxes; ++i)
-    {
-        const pixman_box32_t *box = &(boxes[i]);
-
-        pixman_image_composite32 (op, solid, NULL, dest,
-                                  0, 0, 0, 0,
-                                  box->x1, box->y1,
-                                  box->x2 - box->x1, box->y2 - box->y1);
-    }
-
-    pixman_image_unref (solid);
-
-    return TRUE;
-}
-
-/**
- * pixman_version:
- *
- * Returns the version of the pixman library encoded in a single
- * integer as per %PIXMAN_VERSION_ENCODE. The encoding ensures that
- * later versions compare greater than earlier versions.
- *
- * A run-time comparison to check that pixman's version is greater than
- * or equal to version X.Y.Z could be performed as follows:
- *
- * <informalexample><programlisting>
- * if (pixman_version() >= PIXMAN_VERSION_ENCODE(X,Y,Z)) {...}
- * </programlisting></informalexample>
- *
- * See also pixman_version_string() as well as the compile-time
- * equivalents %PIXMAN_VERSION and %PIXMAN_VERSION_STRING.
- *
- * Return value: the encoded version.
- **/
-PIXMAN_EXPORT int
-pixman_version (void)
-{
-    return PIXMAN_VERSION;
-}
-
-/**
- * pixman_version_string:
- *
- * Returns the version of the pixman library as a human-readable string
- * of the form "X.Y.Z".
- *
- * See also pixman_version() as well as the compile-time equivalents
- * %PIXMAN_VERSION_STRING and %PIXMAN_VERSION.
- *
- * Return value: a string containing the version.
- **/
-PIXMAN_EXPORT const char*
-pixman_version_string (void)
-{
-    return PIXMAN_VERSION_STRING;
-}
-
-/**
- * pixman_format_supported_source:
- * @format: A pixman_format_code_t format
- *
- * Return value: whether the provided format code is a supported
- * format for a pixman surface used as a source in
- * rendering.
- *
- * Currently, all pixman_format_code_t values are supported.
- **/
-PIXMAN_EXPORT pixman_bool_t
-pixman_format_supported_source (pixman_format_code_t format)
-{
-    switch (format)
-    {
-    /* 32 bpp formats */
-    case PIXMAN_a2b10g10r10:
-    case PIXMAN_x2b10g10r10:
-    case PIXMAN_a2r10g10b10:
-    case PIXMAN_x2r10g10b10:
-    case PIXMAN_a8r8g8b8:
-    case PIXMAN_x8r8g8b8:
-    case PIXMAN_a8b8g8r8:
-    case PIXMAN_x8b8g8r8:
-    case PIXMAN_b8g8r8a8:
-    case PIXMAN_b8g8r8x8:
-    case PIXMAN_r8g8b8a8:
-    case PIXMAN_r8g8b8x8:
-    case PIXMAN_r8g8b8:
-    case PIXMAN_b8g8r8:
-    case PIXMAN_r5g6b5:
-    case PIXMAN_b5g6r5:
-    case PIXMAN_x14r6g6b6:
-    /* 16 bpp formats */
-    case PIXMAN_a1r5g5b5:
-    case PIXMAN_x1r5g5b5:
-    case PIXMAN_a1b5g5r5:
-    case PIXMAN_x1b5g5r5:
-    case PIXMAN_a4r4g4b4:
-    case PIXMAN_x4r4g4b4:
-    case PIXMAN_a4b4g4r4:
-    case PIXMAN_x4b4g4r4:
-    /* 8bpp formats */
-    case PIXMAN_a8:
-    case PIXMAN_r3g3b2:
-    case PIXMAN_b2g3r3:
-    case PIXMAN_a2r2g2b2:
-    case PIXMAN_a2b2g2r2:
-    case PIXMAN_c8:
-    case PIXMAN_g8:
-    case PIXMAN_x4a4:
-    /* Collides with PIXMAN_c8
-       case PIXMAN_x4c4:
-     */
-    /* Collides with PIXMAN_g8
-       case PIXMAN_x4g4:
-     */
-    /* 4bpp formats */
-    case PIXMAN_a4:
-    case PIXMAN_r1g2b1:
-    case PIXMAN_b1g2r1:
-    case PIXMAN_a1r1g1b1:
-    case PIXMAN_a1b1g1r1:
-    case PIXMAN_c4:
-    case PIXMAN_g4:
-    /* 1bpp formats */
-    case PIXMAN_a1:
-    case PIXMAN_g1:
-    /* YUV formats */
-    case PIXMAN_yuy2:
-    case PIXMAN_yv12:
-	return TRUE;
-
-    default:
-	return FALSE;
-    }
-}
-
-/**
- * pixman_format_supported_destination:
- * @format: A pixman_format_code_t format
- *
- * Return value: whether the provided format code is a supported
- * format for a pixman surface used as a destination in
- * rendering.
- *
- * Currently, all pixman_format_code_t values are supported
- * except for the YUV formats.
- **/
-PIXMAN_EXPORT pixman_bool_t
-pixman_format_supported_destination (pixman_format_code_t format)
-{
-    /* YUV formats cannot be written to at the moment */
-    if (format == PIXMAN_yuy2 || format == PIXMAN_yv12)
-	return FALSE;
-
-    return pixman_format_supported_source (format);
-}
-
-PIXMAN_EXPORT pixman_bool_t
-pixman_compute_composite_region (pixman_region16_t * region,
-                                 pixman_image_t *    src_image,
-                                 pixman_image_t *    mask_image,
-                                 pixman_image_t *    dst_image,
-                                 int16_t             src_x,
-                                 int16_t             src_y,
-                                 int16_t             mask_x,
-                                 int16_t             mask_y,
-                                 int16_t             dest_x,
-                                 int16_t             dest_y,
-                                 uint16_t            width,
-                                 uint16_t            height)
-{
-    pixman_region32_t r32;
-    pixman_bool_t retval;
-
-    pixman_region32_init (&r32);
-
-    retval = pixman_compute_composite_region32 (
-	&r32, src_image, mask_image, dst_image,
-	src_x, src_y, mask_x, mask_y, dest_x, dest_y,
-	width, height);
-
-    if (retval)
-    {
-	if (!pixman_region16_copy_from_region32 (region, &r32))
-	    retval = FALSE;
-    }
-
-    pixman_region32_fini (&r32);
-    return retval;
-}
+/* -*- Mode: c; c-basic-offset: 4; tab-width: 8; indent-tabs-mode: t; -*- */

+/*

+ * 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.

+ *

+ * Author:  Keith Packard, SuSE, Inc.

+ */

+

+#ifdef HAVE_CONFIG_H

+#include <config.h>

+#endif

+#include "pixman-private.h"

+

+#include <stdlib.h>

+

+static pixman_implementation_t *global_implementation;

+

+#ifdef TOOLCHAIN_SUPPORTS_ATTRIBUTE_CONSTRUCTOR

+static void __attribute__((constructor))

+pixman_constructor (void)

+{

+    global_implementation = _pixman_choose_implementation ();

+}

+#endif

+

+static force_inline pixman_implementation_t *

+get_implementation (void)

+{

+#ifndef TOOLCHAIN_SUPPORTS_ATTRIBUTE_CONSTRUCTOR

+    if (!global_implementation)

+	global_implementation = _pixman_choose_implementation ();

+#endif

+    return global_implementation;

+}

+

+typedef struct operator_info_t operator_info_t;

+

+struct operator_info_t

+{

+    uint8_t	opaque_info[4];

+};

+

+#define PACK(neither, src, dest, both)			\

+    {{	    (uint8_t)PIXMAN_OP_ ## neither,		\

+	    (uint8_t)PIXMAN_OP_ ## src,			\

+	    (uint8_t)PIXMAN_OP_ ## dest,		\

+	    (uint8_t)PIXMAN_OP_ ## both		}}

+

+static const operator_info_t operator_table[] =

+{

+    /*    Neither Opaque         Src Opaque             Dst Opaque             Both Opaque */

+    PACK (CLEAR,                 CLEAR,                 CLEAR,                 CLEAR),

+    PACK (SRC,                   SRC,                   SRC,                   SRC),

+    PACK (DST,                   DST,                   DST,                   DST),

+    PACK (OVER,                  SRC,                   OVER,                  SRC),

+    PACK (OVER_REVERSE,          OVER_REVERSE,          DST,                   DST),

+    PACK (IN,                    IN,                    SRC,                   SRC),

+    PACK (IN_REVERSE,            DST,                   IN_REVERSE,            DST),

+    PACK (OUT,                   OUT,                   CLEAR,                 CLEAR),

+    PACK (OUT_REVERSE,           CLEAR,                 OUT_REVERSE,           CLEAR),

+    PACK (ATOP,                  IN,                    OVER,                  SRC),

+    PACK (ATOP_REVERSE,          OVER_REVERSE,          IN_REVERSE,            DST),

+    PACK (XOR,                   OUT,                   OUT_REVERSE,           CLEAR),

+    PACK (ADD,                   ADD,                   ADD,                   ADD),

+    PACK (SATURATE,              OVER_REVERSE,          DST,                   DST),

+

+    {{ 0 /* 0x0e */ }},

+    {{ 0 /* 0x0f */ }},

+

+    PACK (CLEAR,                 CLEAR,                 CLEAR,                 CLEAR),

+    PACK (SRC,                   SRC,                   SRC,                   SRC),

+    PACK (DST,                   DST,                   DST,                   DST),

+    PACK (DISJOINT_OVER,         DISJOINT_OVER,         DISJOINT_OVER,         DISJOINT_OVER),

+    PACK (DISJOINT_OVER_REVERSE, DISJOINT_OVER_REVERSE, DISJOINT_OVER_REVERSE, DISJOINT_OVER_REVERSE),

+    PACK (DISJOINT_IN,           DISJOINT_IN,           DISJOINT_IN,           DISJOINT_IN),

+    PACK (DISJOINT_IN_REVERSE,   DISJOINT_IN_REVERSE,   DISJOINT_IN_REVERSE,   DISJOINT_IN_REVERSE),

+    PACK (DISJOINT_OUT,          DISJOINT_OUT,          DISJOINT_OUT,          DISJOINT_OUT),

+    PACK (DISJOINT_OUT_REVERSE,  DISJOINT_OUT_REVERSE,  DISJOINT_OUT_REVERSE,  DISJOINT_OUT_REVERSE),

+    PACK (DISJOINT_ATOP,         DISJOINT_ATOP,         DISJOINT_ATOP,         DISJOINT_ATOP),

+    PACK (DISJOINT_ATOP_REVERSE, DISJOINT_ATOP_REVERSE, DISJOINT_ATOP_REVERSE, DISJOINT_ATOP_REVERSE),

+    PACK (DISJOINT_XOR,          DISJOINT_XOR,          DISJOINT_XOR,          DISJOINT_XOR),

+

+    {{ 0 /* 0x1c */ }},

+    {{ 0 /* 0x1d */ }},

+    {{ 0 /* 0x1e */ }},

+    {{ 0 /* 0x1f */ }},

+

+    PACK (CLEAR,                 CLEAR,                 CLEAR,                 CLEAR),

+    PACK (SRC,                   SRC,                   SRC,                   SRC),

+    PACK (DST,                   DST,                   DST,                   DST),

+    PACK (CONJOINT_OVER,         CONJOINT_OVER,         CONJOINT_OVER,         CONJOINT_OVER),

+    PACK (CONJOINT_OVER_REVERSE, CONJOINT_OVER_REVERSE, CONJOINT_OVER_REVERSE, CONJOINT_OVER_REVERSE),

+    PACK (CONJOINT_IN,           CONJOINT_IN,           CONJOINT_IN,           CONJOINT_IN),

+    PACK (CONJOINT_IN_REVERSE,   CONJOINT_IN_REVERSE,   CONJOINT_IN_REVERSE,   CONJOINT_IN_REVERSE),

+    PACK (CONJOINT_OUT,          CONJOINT_OUT,          CONJOINT_OUT,          CONJOINT_OUT),

+    PACK (CONJOINT_OUT_REVERSE,  CONJOINT_OUT_REVERSE,  CONJOINT_OUT_REVERSE,  CONJOINT_OUT_REVERSE),

+    PACK (CONJOINT_ATOP,         CONJOINT_ATOP,         CONJOINT_ATOP,         CONJOINT_ATOP),

+    PACK (CONJOINT_ATOP_REVERSE, CONJOINT_ATOP_REVERSE, CONJOINT_ATOP_REVERSE, CONJOINT_ATOP_REVERSE),

+    PACK (CONJOINT_XOR,          CONJOINT_XOR,          CONJOINT_XOR,          CONJOINT_XOR),

+

+    {{ 0 /* 0x2c */ }},

+    {{ 0 /* 0x2d */ }},

+    {{ 0 /* 0x2e */ }},

+    {{ 0 /* 0x2f */ }},

+

+    PACK (MULTIPLY,              MULTIPLY,              MULTIPLY,              MULTIPLY),

+    PACK (SCREEN,                SCREEN,                SCREEN,                SCREEN),

+    PACK (OVERLAY,               OVERLAY,               OVERLAY,               OVERLAY),

+    PACK (DARKEN,                DARKEN,                DARKEN,                DARKEN),

+    PACK (LIGHTEN,               LIGHTEN,               LIGHTEN,               LIGHTEN),

+    PACK (COLOR_DODGE,           COLOR_DODGE,           COLOR_DODGE,           COLOR_DODGE),

+    PACK (COLOR_BURN,            COLOR_BURN,            COLOR_BURN,            COLOR_BURN),

+    PACK (HARD_LIGHT,            HARD_LIGHT,            HARD_LIGHT,            HARD_LIGHT),

+    PACK (SOFT_LIGHT,            SOFT_LIGHT,            SOFT_LIGHT,            SOFT_LIGHT),

+    PACK (DIFFERENCE,            DIFFERENCE,            DIFFERENCE,            DIFFERENCE),

+    PACK (EXCLUSION,             EXCLUSION,             EXCLUSION,             EXCLUSION),

+    PACK (HSL_HUE,               HSL_HUE,               HSL_HUE,               HSL_HUE),

+    PACK (HSL_SATURATION,        HSL_SATURATION,        HSL_SATURATION,        HSL_SATURATION),

+    PACK (HSL_COLOR,             HSL_COLOR,             HSL_COLOR,             HSL_COLOR),

+    PACK (HSL_LUMINOSITY,        HSL_LUMINOSITY,        HSL_LUMINOSITY,        HSL_LUMINOSITY),

+};

+

+/*

+ * Optimize the current operator based on opacity of source or destination

+ * The output operator should be mathematically equivalent to the source.

+ */

+static pixman_op_t

+optimize_operator (pixman_op_t     op,

+		   uint32_t        src_flags,

+		   uint32_t        mask_flags,

+		   uint32_t        dst_flags)

+{

+    pixman_bool_t is_source_opaque, is_dest_opaque;

+

+#define OPAQUE_SHIFT 13

+    

+    COMPILE_TIME_ASSERT (FAST_PATH_IS_OPAQUE == (1 << OPAQUE_SHIFT));

+    

+    is_dest_opaque = (dst_flags & FAST_PATH_IS_OPAQUE);

+    is_source_opaque = ((src_flags & mask_flags) & FAST_PATH_IS_OPAQUE);

+

+    is_dest_opaque >>= OPAQUE_SHIFT - 1;

+    is_source_opaque >>= OPAQUE_SHIFT;

+

+    return operator_table[op].opaque_info[is_dest_opaque | is_source_opaque];

+}

+

+/*

+ * Computing composite region

+ */

+static inline pixman_bool_t

+clip_general_image (pixman_region32_t * region,

+                    pixman_region32_t * clip,

+                    int                 dx,

+                    int                 dy)

+{

+    if (pixman_region32_n_rects (region) == 1 &&

+        pixman_region32_n_rects (clip) == 1)

+    {

+	pixman_box32_t *  rbox = pixman_region32_rectangles (region, NULL);

+	pixman_box32_t *  cbox = pixman_region32_rectangles (clip, NULL);

+	int v;

+

+	if (rbox->x1 < (v = cbox->x1 + dx))

+	    rbox->x1 = v;

+	if (rbox->x2 > (v = cbox->x2 + dx))

+	    rbox->x2 = v;

+	if (rbox->y1 < (v = cbox->y1 + dy))

+	    rbox->y1 = v;

+	if (rbox->y2 > (v = cbox->y2 + dy))

+	    rbox->y2 = v;

+	if (rbox->x1 >= rbox->x2 || rbox->y1 >= rbox->y2)

+	{

+	    pixman_region32_init (region);

+	    return FALSE;

+	}

+    }

+    else if (!pixman_region32_not_empty (clip))

+    {

+	return FALSE;

+    }

+    else

+    {

+	if (dx || dy)

+	    pixman_region32_translate (region, -dx, -dy);

+

+	if (!pixman_region32_intersect (region, region, clip))

+	    return FALSE;

+

+	if (dx || dy)

+	    pixman_region32_translate (region, dx, dy);

+    }

+

+    return pixman_region32_not_empty (region);

+}

+

+static inline pixman_bool_t

+clip_source_image (pixman_region32_t * region,

+                   pixman_image_t *    image,

+                   int                 dx,

+                   int                 dy)

+{

+    /* Source clips are ignored, unless they are explicitly turned on

+     * and the clip in question was set by an X client. (Because if

+     * the clip was not set by a client, then it is a hierarchy

+     * clip and those should always be ignored for sources).

+     */

+    if (!image->common.clip_sources || !image->common.client_clip)

+	return TRUE;

+

+    return clip_general_image (region,

+                               &image->common.clip_region,

+                               dx, dy);

+}

+

+/*

+ * returns FALSE if the final region is empty.  Indistinguishable from

+ * an allocation failure, but rendering ignores those anyways.

+ */

+static pixman_bool_t

+pixman_compute_composite_region32 (pixman_region32_t * region,

+                                   pixman_image_t *    src_image,

+                                   pixman_image_t *    mask_image,

+                                   pixman_image_t *    dst_image,

+                                   int32_t             src_x,

+                                   int32_t             src_y,

+                                   int32_t             mask_x,

+                                   int32_t             mask_y,

+                                   int32_t             dest_x,

+                                   int32_t             dest_y,

+                                   int32_t             width,

+                                   int32_t             height)

+{

+    region->extents.x1 = dest_x;

+    region->extents.x2 = dest_x + width;

+    region->extents.y1 = dest_y;

+    region->extents.y2 = dest_y + height;

+

+    region->extents.x1 = MAX (region->extents.x1, 0);

+    region->extents.y1 = MAX (region->extents.y1, 0);

+    region->extents.x2 = MIN (region->extents.x2, dst_image->bits.width);

+    region->extents.y2 = MIN (region->extents.y2, dst_image->bits.height);

+

+    region->data = 0;

+

+    /* Check for empty operation */

+    if (region->extents.x1 >= region->extents.x2 ||

+        region->extents.y1 >= region->extents.y2)

+    {

+	region->extents.x1 = 0;

+	region->extents.x2 = 0;

+	region->extents.y1 = 0;

+	region->extents.y2 = 0;

+	return FALSE;

+    }

+

+    if (dst_image->common.have_clip_region)

+    {

+	if (!clip_general_image (region, &dst_image->common.clip_region, 0, 0))

+	    return FALSE;

+    }

+

+    if (dst_image->common.alpha_map)

+    {

+	if (!pixman_region32_intersect_rect (region, region,

+					     dst_image->common.alpha_origin_x,

+					     dst_image->common.alpha_origin_y,

+					     dst_image->common.alpha_map->width,

+					     dst_image->common.alpha_map->height))

+	{

+	    return FALSE;

+	}

+	if (!pixman_region32_not_empty (region))

+	    return FALSE;

+	if (dst_image->common.alpha_map->common.have_clip_region)

+	{

+	    if (!clip_general_image (region, &dst_image->common.alpha_map->common.clip_region,

+				     -dst_image->common.alpha_origin_x,

+				     -dst_image->common.alpha_origin_y))

+	    {

+		return FALSE;

+	    }

+	}

+    }

+

+    /* clip against src */

+    if (src_image->common.have_clip_region)

+    {

+	if (!clip_source_image (region, src_image, dest_x - src_x, dest_y - src_y))

+	    return FALSE;

+    }

+    if (src_image->common.alpha_map && src_image->common.alpha_map->common.have_clip_region)

+    {

+	if (!clip_source_image (region, (pixman_image_t *)src_image->common.alpha_map,

+	                        dest_x - (src_x - src_image->common.alpha_origin_x),

+	                        dest_y - (src_y - src_image->common.alpha_origin_y)))

+	{

+	    return FALSE;

+	}

+    }

+    /* clip against mask */

+    if (mask_image && mask_image->common.have_clip_region)

+    {

+	if (!clip_source_image (region, mask_image, dest_x - mask_x, dest_y - mask_y))

+	    return FALSE;

+

+	if (mask_image->common.alpha_map && mask_image->common.alpha_map->common.have_clip_region)

+	{

+	    if (!clip_source_image (region, (pixman_image_t *)mask_image->common.alpha_map,

+	                            dest_x - (mask_x - mask_image->common.alpha_origin_x),

+	                            dest_y - (mask_y - mask_image->common.alpha_origin_y)))

+	    {

+		return FALSE;

+	    }

+	}

+    }

+

+    return TRUE;

+}

+

+#define N_CACHED_FAST_PATHS 8

+

+typedef struct

+{

+    struct

+    {

+	pixman_implementation_t *	imp;

+	pixman_fast_path_t		fast_path;

+    } cache [N_CACHED_FAST_PATHS];

+} cache_t;

+

+PIXMAN_DEFINE_THREAD_LOCAL (cache_t, fast_path_cache);

+

+static force_inline pixman_bool_t

+lookup_composite_function (pixman_op_t			op,

+			   pixman_format_code_t		src_format,

+			   uint32_t			src_flags,

+			   pixman_format_code_t		mask_format,

+			   uint32_t			mask_flags,

+			   pixman_format_code_t		dest_format,

+			   uint32_t			dest_flags,

+			   pixman_implementation_t    **out_imp,

+			   pixman_composite_func_t     *out_func)

+{

+    pixman_implementation_t *imp;

+    cache_t *cache;

+    int i;

+

+    /* Check cache for fast paths */

+    cache = PIXMAN_GET_THREAD_LOCAL (fast_path_cache);

+

+    for (i = 0; i < N_CACHED_FAST_PATHS; ++i)

+    {

+	const pixman_fast_path_t *info = &(cache->cache[i].fast_path);

+

+	/* Note that we check for equality here, not whether

+	 * the cached fast path matches. This is to prevent

+	 * us from selecting an overly general fast path

+	 * when a more specific one would work.

+	 */

+	if (info->op == op			&&

+	    info->src_format == src_format	&&

+	    info->mask_format == mask_format	&&

+	    info->dest_format == dest_format	&&

+	    info->src_flags == src_flags	&&

+	    info->mask_flags == mask_flags	&&

+	    info->dest_flags == dest_flags	&&

+	    info->func)

+	{

+	    *out_imp = cache->cache[i].imp;

+	    *out_func = cache->cache[i].fast_path.func;

+

+	    goto update_cache;

+	}

+    }

+

+    for (imp = get_implementation (); imp != NULL; imp = imp->delegate)

+    {

+	const pixman_fast_path_t *info = imp->fast_paths;

+

+	while (info->op != PIXMAN_OP_NONE)

+	{

+	    if ((info->op == op || info->op == PIXMAN_OP_any)		&&

+		/* Formats */

+		((info->src_format == src_format) ||

+		 (info->src_format == PIXMAN_any))			&&

+		((info->mask_format == mask_format) ||

+		 (info->mask_format == PIXMAN_any))			&&

+		((info->dest_format == dest_format) ||

+		 (info->dest_format == PIXMAN_any))			&&

+		/* Flags */

+		(info->src_flags & src_flags) == info->src_flags	&&

+		(info->mask_flags & mask_flags) == info->mask_flags	&&

+		(info->dest_flags & dest_flags) == info->dest_flags)

+	    {

+		*out_imp = imp;

+		*out_func = info->func;

+

+		/* Set i to the last spot in the cache so that the

+		 * move-to-front code below will work

+		 */

+		i = N_CACHED_FAST_PATHS - 1;

+

+		goto update_cache;

+	    }

+

+	    ++info;

+	}

+    }

+    return FALSE;

+

+update_cache:

+    if (i)

+    {

+	while (i--)

+	    cache->cache[i + 1] = cache->cache[i];

+

+	cache->cache[0].imp = *out_imp;

+	cache->cache[0].fast_path.op = op;

+	cache->cache[0].fast_path.src_format = src_format;

+	cache->cache[0].fast_path.src_flags = src_flags;

+	cache->cache[0].fast_path.mask_format = mask_format;

+	cache->cache[0].fast_path.mask_flags = mask_flags;

+	cache->cache[0].fast_path.dest_format = dest_format;

+	cache->cache[0].fast_path.dest_flags = dest_flags;

+	cache->cache[0].fast_path.func = *out_func;

+    }

+

+    return TRUE;

+}

+

+static pixman_bool_t

+compute_sample_extents (pixman_transform_t *transform,

+			pixman_box32_t *extents, int x, int y, 

+			pixman_fixed_t x_off, pixman_fixed_t y_off,

+			pixman_fixed_t width, pixman_fixed_t height)

+{

+    pixman_fixed_t x1, y1, x2, y2;

+    pixman_fixed_48_16_t tx1, ty1, tx2, ty2;

+

+    /* We have checked earlier that (extents->x1 - x) etc. fit in a pixman_fixed_t */

+    x1 = (pixman_fixed_48_16_t)pixman_int_to_fixed (extents->x1 - x) + pixman_fixed_1 / 2;

+    y1 = (pixman_fixed_48_16_t)pixman_int_to_fixed (extents->y1 - y) + pixman_fixed_1 / 2;

+    x2 = (pixman_fixed_48_16_t)pixman_int_to_fixed (extents->x2 - x) - pixman_fixed_1 / 2;

+    y2 = (pixman_fixed_48_16_t)pixman_int_to_fixed (extents->y2 - y) - pixman_fixed_1 / 2;

+

+    if (!transform)

+    {

+	tx1 = (pixman_fixed_48_16_t)x1;

+	ty1 = (pixman_fixed_48_16_t)y1;

+	tx2 = (pixman_fixed_48_16_t)x2;

+	ty2 = (pixman_fixed_48_16_t)y2;

+    }

+    else

+    {

+	int i;

+

+	/* Silence GCC */

+	tx1 = ty1 = tx2 = ty2 = 0;

+    

+	for (i = 0; i < 4; ++i)

+	{

+	    pixman_fixed_48_16_t tx, ty;

+	    pixman_vector_t v;

+

+	    v.vector[0] = (i & 0x01)? x1 : x2;

+	    v.vector[1] = (i & 0x02)? y1 : y2;

+	    v.vector[2] = pixman_fixed_1;

+

+	    if (!pixman_transform_point (transform, &v))

+		return FALSE;

+

+	    tx = (pixman_fixed_48_16_t)v.vector[0];

+	    ty = (pixman_fixed_48_16_t)v.vector[1];

+

+	    if (i == 0)

+	    {

+		tx1 = tx;

+		ty1 = ty;

+		tx2 = tx;

+		ty2 = ty;

+	    }

+	    else

+	    {

+		if (tx < tx1)

+		    tx1 = tx;

+		if (ty < ty1)

+		    ty1 = ty;

+		if (tx > tx2)

+		    tx2 = tx;

+		if (ty > ty2)

+		    ty2 = ty;

+	    }

+	}

+    }

+

+    /* Expand the source area by a tiny bit so account of different rounding that

+     * may happen during sampling. Note that (8 * pixman_fixed_e) is very far from

+     * 0.5 so this won't cause the area computed to be overly pessimistic.

+     */

+    tx1 += x_off - 8 * pixman_fixed_e;

+    ty1 += y_off - 8 * pixman_fixed_e;

+    tx2 += x_off + width + 8 * pixman_fixed_e;

+    ty2 += y_off + height + 8 * pixman_fixed_e;

+

+    if (tx1 < pixman_min_fixed_48_16 || tx1 > pixman_max_fixed_48_16 ||

+	ty1 < pixman_min_fixed_48_16 || ty1 > pixman_max_fixed_48_16 ||

+	tx2 < pixman_min_fixed_48_16 || tx2 > pixman_max_fixed_48_16 ||

+	ty2 < pixman_min_fixed_48_16 || ty2 > pixman_max_fixed_48_16)

+    {

+	return FALSE;

+    }

+    else

+    {

+	extents->x1 = pixman_fixed_to_int (tx1);

+	extents->y1 = pixman_fixed_to_int (ty1);

+	extents->x2 = pixman_fixed_to_int (tx2) + 1;

+	extents->y2 = pixman_fixed_to_int (ty2) + 1;

+

+	return TRUE;

+    }

+}

+

+#define IS_16BIT(x) (((x) >= INT16_MIN) && ((x) <= INT16_MAX))

+

+static pixman_bool_t

+analyze_extent (pixman_image_t *image, int x, int y,

+		const pixman_box32_t *extents, uint32_t *flags)

+{

+    pixman_transform_t *transform;

+    pixman_fixed_t *params;

+    pixman_fixed_t x_off, y_off;

+    pixman_fixed_t width, height;

+    pixman_box32_t ex;

+

+    if (!image)

+	return TRUE;

+

+    /* Some compositing functions walk one step

+     * outside the destination rectangle, so we

+     * check here that the expanded-by-one source

+     * extents in destination space fits in 16 bits

+     */

+    if (!IS_16BIT (extents->x1 - x - 1)		||

+	!IS_16BIT (extents->y1 - y - 1)		||

+	!IS_16BIT (extents->x2 - x + 1)		||

+	!IS_16BIT (extents->y2 - y + 1))

+    {

+	return FALSE;

+    }

+

+    transform = image->common.transform;

+    if (image->common.type == BITS)

+    {

+	/* During repeat mode calculations we might convert the

+	 * width/height of an image to fixed 16.16, so we need

+	 * them to be smaller than 16 bits.

+	 */

+	if (image->bits.width >= 0x7fff	|| image->bits.height >= 0x7fff)

+	    return FALSE;

+

+#define ID_AND_NEAREST (FAST_PATH_ID_TRANSFORM | FAST_PATH_NEAREST_FILTER)

+	

+	if ((image->common.flags & ID_AND_NEAREST) == ID_AND_NEAREST &&

+	    extents->x1 - x >= 0 &&

+	    extents->y1 - y >= 0 &&

+	    extents->x2 - x <= image->bits.width &&

+	    extents->y2 - y <= image->bits.height)

+	{

+	    *flags |= FAST_PATH_SAMPLES_COVER_CLIP;

+	    return TRUE;

+	}

+    

+	switch (image->common.filter)

+	{

+	case PIXMAN_FILTER_CONVOLUTION:

+	    params = image->common.filter_params;

+	    x_off = - pixman_fixed_e - ((params[0] - pixman_fixed_1) >> 1);

+	    y_off = - pixman_fixed_e - ((params[1] - pixman_fixed_1) >> 1);

+	    width = params[0];

+	    height = params[1];

+	    break;

+

+	case PIXMAN_FILTER_GOOD:

+	case PIXMAN_FILTER_BEST:

+	case PIXMAN_FILTER_BILINEAR:

+	    x_off = - pixman_fixed_1 / 2;

+	    y_off = - pixman_fixed_1 / 2;

+	    width = pixman_fixed_1;

+	    height = pixman_fixed_1;

+	    break;

+

+	case PIXMAN_FILTER_FAST:

+	case PIXMAN_FILTER_NEAREST:

+	    x_off = - pixman_fixed_e;

+	    y_off = - pixman_fixed_e;

+	    width = 0;

+	    height = 0;

+	    break;

+

+	default:

+	    return FALSE;

+	}

+

+	/* Check whether the non-expanded, transformed extent is entirely within

+	 * the source image, and set the FAST_PATH_SAMPLES_COVER_CLIP if it is.

+	 */

+	ex = *extents;

+	if (compute_sample_extents (transform, &ex, x, y, x_off, y_off, width, height) &&

+	    ex.x1 >= 0 && ex.y1 >= 0 &&

+	    ex.x2 <= image->bits.width && ex.y2 <= image->bits.height)

+	{

+	    *flags |= FAST_PATH_SAMPLES_COVER_CLIP;

+	}

+    }

+    else

+    {

+	x_off = 0;

+	y_off = 0;

+	width = 0;

+	height = 0;

+    }

+

+    /* Check that the extents expanded by one don't overflow. This ensures that

+     * compositing functions can simply walk the source space using 16.16

+     * variables without worrying about overflow.

+     */

+    ex.x1 = extents->x1 - 1;

+    ex.y1 = extents->y1 - 1;

+    ex.x2 = extents->x2 + 1;

+    ex.y2 = extents->y2 + 1;

+

+    if (!compute_sample_extents (transform, &ex, x, y, x_off, y_off, width, height))

+	return FALSE;

+

+    return TRUE;

+}

+

+/*

+ * Work around GCC bug causing crashes in Mozilla with SSE2

+ *

+ * When using -msse, gcc generates movdqa instructions assuming that

+ * the stack is 16 byte aligned. Unfortunately some applications, such

+ * as Mozilla and Mono, end up aligning the stack to 4 bytes, which

+ * causes the movdqa instructions to fail.

+ *

+ * The __force_align_arg_pointer__ makes gcc generate a prologue that

+ * realigns the stack pointer to 16 bytes.

+ *

+ * On x86-64 this is not necessary because the standard ABI already

+ * calls for a 16 byte aligned stack.

+ *

+ * See https://bugs.freedesktop.org/show_bug.cgi?id=15693

+ */

+#if defined (USE_SSE2) && defined(__GNUC__) && !defined(__x86_64__) && !defined(__amd64__)

+__attribute__((__force_align_arg_pointer__))

+#endif

+PIXMAN_EXPORT void

+pixman_image_composite32 (pixman_op_t      op,

+                          pixman_image_t * src,

+                          pixman_image_t * mask,

+                          pixman_image_t * dest,

+                          int32_t          src_x,

+                          int32_t          src_y,

+                          int32_t          mask_x,

+                          int32_t          mask_y,

+                          int32_t          dest_x,

+                          int32_t          dest_y,

+                          int32_t          width,

+                          int32_t          height)

+{

+    pixman_format_code_t src_format, mask_format, dest_format;

+    uint32_t src_flags, mask_flags, dest_flags;

+    pixman_region32_t region;

+    pixman_box32_t *extents;

+    pixman_implementation_t *imp;

+    pixman_composite_func_t func;

+

+    _pixman_image_validate (src);

+    if (mask)

+	_pixman_image_validate (mask);

+    _pixman_image_validate (dest);

+

+    src_format = src->common.extended_format_code;

+    src_flags = src->common.flags;

+

+    if (mask)

+    {

+	mask_format = mask->common.extended_format_code;

+	mask_flags = mask->common.flags;

+    }

+    else

+    {

+	mask_format = PIXMAN_null;

+	mask_flags = FAST_PATH_IS_OPAQUE;

+    }

+

+    dest_format = dest->common.extended_format_code;

+    dest_flags = dest->common.flags;

+

+    /* Check for pixbufs */

+    if ((mask_format == PIXMAN_a8r8g8b8 || mask_format == PIXMAN_a8b8g8r8) &&

+	(src->type == BITS && src->bits.bits == mask->bits.bits)	   &&

+	(src->common.repeat == mask->common.repeat)			   &&

+	(src_x == mask_x && src_y == mask_y))

+    {

+	if (src_format == PIXMAN_x8b8g8r8)

+	    src_format = mask_format = PIXMAN_pixbuf;

+	else if (src_format == PIXMAN_x8r8g8b8)

+	    src_format = mask_format = PIXMAN_rpixbuf;

+    }

+

+    pixman_region32_init (&region);

+

+    if (!pixman_compute_composite_region32 (

+	    &region, src, mask, dest,

+	    src_x, src_y, mask_x, mask_y, dest_x, dest_y, width, height))

+    {

+	goto out;

+    }

+

+    extents = pixman_region32_extents (&region);

+

+    if (!analyze_extent (src, dest_x - src_x, dest_y - src_y, extents, &src_flags))

+	goto out;

+

+    if (!analyze_extent (mask, dest_x - mask_x, dest_y - mask_y, extents, &mask_flags))

+	goto out;

+

+    /* If the clip is within the source samples, and the samples are opaque,

+     * then the source is effectively opaque.

+     */

+#define BOTH (FAST_PATH_SAMPLES_OPAQUE | FAST_PATH_SAMPLES_COVER_CLIP)

+

+    if ((src_flags & BOTH) == BOTH)

+	src_flags |= FAST_PATH_IS_OPAQUE;

+    

+    if ((mask_flags & BOTH) == BOTH)

+	mask_flags |= FAST_PATH_IS_OPAQUE;

+    

+    /*

+     * Check if we can replace our operator by a simpler one

+     * if the src or dest are opaque. The output operator should be

+     * mathematically equivalent to the source.

+     */

+    op = optimize_operator (op, src_flags, mask_flags, dest_flags);

+

+    if (lookup_composite_function (op,

+				   src_format, src_flags,

+				   mask_format, mask_flags,

+				   dest_format, dest_flags,

+				   &imp, &func))

+    {

+	const pixman_box32_t *pbox;

+	int n;

+

+	pbox = pixman_region32_rectangles (&region, &n);

+	

+	while (n--)

+	{

+	    func (imp, op,

+		  src, mask, dest,

+		  pbox->x1 + src_x - dest_x,

+		  pbox->y1 + src_y - dest_y,

+		  pbox->x1 + mask_x - dest_x,

+		  pbox->y1 + mask_y - dest_y,

+		  pbox->x1,

+		  pbox->y1,

+		  pbox->x2 - pbox->x1,

+		  pbox->y2 - pbox->y1);

+	    

+	    pbox++;

+	}

+    }

+

+out:

+    pixman_region32_fini (&region);

+}

+

+PIXMAN_EXPORT void

+pixman_image_composite (pixman_op_t      op,

+                        pixman_image_t * src,

+                        pixman_image_t * mask,

+                        pixman_image_t * dest,

+                        int16_t          src_x,

+                        int16_t          src_y,

+                        int16_t          mask_x,

+                        int16_t          mask_y,

+                        int16_t          dest_x,

+                        int16_t          dest_y,

+                        uint16_t         width,

+                        uint16_t         height)

+{

+    pixman_image_composite32 (op, src, mask, dest, src_x, src_y, 

+                              mask_x, mask_y, dest_x, dest_y, width, height);

+}

+

+PIXMAN_EXPORT pixman_bool_t

+pixman_blt (uint32_t *src_bits,

+            uint32_t *dst_bits,

+            int       src_stride,

+            int       dst_stride,

+            int       src_bpp,

+            int       dst_bpp,

+            int       src_x,

+            int       src_y,

+            int       dst_x,

+            int       dst_y,

+            int       width,

+            int       height)

+{

+    return _pixman_implementation_blt (get_implementation(),

+				       src_bits, dst_bits, src_stride, dst_stride,

+                                       src_bpp, dst_bpp,

+                                       src_x, src_y,

+                                       dst_x, dst_y,

+                                       width, height);

+}

+

+PIXMAN_EXPORT pixman_bool_t

+pixman_fill (uint32_t *bits,

+             int       stride,

+             int       bpp,

+             int       x,

+             int       y,

+             int       width,

+             int       height,

+             uint32_t xor)

+{

+    return _pixman_implementation_fill (

+	get_implementation(), bits, stride, bpp, x, y, width, height, xor);

+}

+

+static uint32_t

+color_to_uint32 (const pixman_color_t *color)

+{

+    return

+        (color->alpha >> 8 << 24) |

+        (color->red >> 8 << 16) |

+        (color->green & 0xff00) |

+        (color->blue >> 8);

+}

+

+static pixman_bool_t

+color_to_pixel (pixman_color_t *     color,

+                uint32_t *           pixel,

+                pixman_format_code_t format)

+{

+    uint32_t c = color_to_uint32 (color);

+

+    if (!(format == PIXMAN_a8r8g8b8     ||

+          format == PIXMAN_x8r8g8b8     ||

+          format == PIXMAN_a8b8g8r8     ||

+          format == PIXMAN_x8b8g8r8     ||

+          format == PIXMAN_b8g8r8a8     ||

+          format == PIXMAN_b8g8r8x8     ||

+          format == PIXMAN_r8g8b8a8     ||

+          format == PIXMAN_r8g8b8x8     ||

+          format == PIXMAN_r5g6b5       ||

+          format == PIXMAN_b5g6r5       ||

+          format == PIXMAN_a8           ||

+          format == PIXMAN_a1))

+    {

+	return FALSE;

+    }

+

+    if (PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_ABGR)

+    {

+	c = ((c & 0xff000000) >>  0) |

+	    ((c & 0x00ff0000) >> 16) |

+	    ((c & 0x0000ff00) >>  0) |

+	    ((c & 0x000000ff) << 16);

+    }

+    if (PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_BGRA)

+    {

+	c = ((c & 0xff000000) >> 24) |

+	    ((c & 0x00ff0000) >>  8) |

+	    ((c & 0x0000ff00) <<  8) |

+	    ((c & 0x000000ff) << 24);

+    }

+    if (PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_RGBA)

+	c = ((c & 0xff000000) >> 24) | (c << 8);

+

+    if (format == PIXMAN_a1)

+	c = c >> 31;

+    else if (format == PIXMAN_a8)

+	c = c >> 24;

+    else if (format == PIXMAN_r5g6b5 ||

+             format == PIXMAN_b5g6r5)

+	c = CONVERT_8888_TO_0565 (c);

+

+#if 0

+    printf ("color: %x %x %x %x\n", color->alpha, color->red, color->green, color->blue);

+    printf ("pixel: %x\n", c);

+#endif

+

+    *pixel = c;

+    return TRUE;

+}

+

+PIXMAN_EXPORT pixman_bool_t

+pixman_image_fill_rectangles (pixman_op_t                 op,

+                              pixman_image_t *            dest,

+                              pixman_color_t *            color,

+                              int                         n_rects,

+                              const pixman_rectangle16_t *rects)

+{

+    pixman_box32_t stack_boxes[6];

+    pixman_box32_t *boxes;

+    pixman_bool_t result;

+    int i;

+

+    if (n_rects > 6)

+    {

+        boxes = pixman_malloc_ab (sizeof (pixman_box32_t), n_rects);

+        if (boxes == NULL)

+            return FALSE;

+    }

+    else

+    {

+        boxes = stack_boxes;

+    }

+

+    for (i = 0; i < n_rects; ++i)

+    {

+        boxes[i].x1 = rects[i].x;

+        boxes[i].y1 = rects[i].y;

+        boxes[i].x2 = boxes[i].x1 + rects[i].width;

+        boxes[i].y2 = boxes[i].y1 + rects[i].height;

+    }

+

+    result = pixman_image_fill_boxes (op, dest, color, n_rects, boxes);

+

+    if (boxes != stack_boxes)

+        free (boxes);

+    

+    return result;

+}

+

+PIXMAN_EXPORT pixman_bool_t

+pixman_image_fill_boxes (pixman_op_t           op,

+                         pixman_image_t *      dest,

+                         pixman_color_t *      color,

+                         int                   n_boxes,

+                         const pixman_box32_t *boxes)

+{

+    pixman_image_t *solid;

+    pixman_color_t c;

+    int i;

+

+    _pixman_image_validate (dest);

+    

+    if (color->alpha == 0xffff)

+    {

+        if (op == PIXMAN_OP_OVER)

+            op = PIXMAN_OP_SRC;

+    }

+

+    if (op == PIXMAN_OP_CLEAR)

+    {

+        c.red = 0;

+        c.green = 0;

+        c.blue = 0;

+        c.alpha = 0;

+

+        color = &c;

+

+        op = PIXMAN_OP_SRC;

+    }

+

+    if (op == PIXMAN_OP_SRC)

+    {

+        uint32_t pixel;

+

+        if (color_to_pixel (color, &pixel, dest->bits.format))

+        {

+            pixman_region32_t fill_region;

+            int n_rects, j;

+            pixman_box32_t *rects;

+

+            if (!pixman_region32_init_rects (&fill_region, boxes, n_boxes))

+                return FALSE;

+

+            if (dest->common.have_clip_region)

+            {

+                if (!pixman_region32_intersect (&fill_region,

+                                                &fill_region,

+                                                &dest->common.clip_region))

+                    return FALSE;

+            }

+

+            rects = pixman_region32_rectangles (&fill_region, &n_rects);

+            for (j = 0; j < n_rects; ++j)

+            {

+                const pixman_box32_t *rect = &(rects[j]);

+                pixman_fill (dest->bits.bits, dest->bits.rowstride, PIXMAN_FORMAT_BPP (dest->bits.format),

+                             rect->x1, rect->y1, rect->x2 - rect->x1, rect->y2 - rect->y1,

+                             pixel);

+            }

+

+            pixman_region32_fini (&fill_region);

+            return TRUE;

+        }

+    }

+

+    solid = pixman_image_create_solid_fill (color);

+    if (!solid)

+        return FALSE;

+

+    for (i = 0; i < n_boxes; ++i)

+    {

+        const pixman_box32_t *box = &(boxes[i]);

+

+        pixman_image_composite32 (op, solid, NULL, dest,

+                                  0, 0, 0, 0,

+                                  box->x1, box->y1,

+                                  box->x2 - box->x1, box->y2 - box->y1);

+    }

+

+    pixman_image_unref (solid);

+

+    return TRUE;

+}

+

+/**

+ * pixman_version:

+ *

+ * Returns the version of the pixman library encoded in a single

+ * integer as per %PIXMAN_VERSION_ENCODE. The encoding ensures that

+ * later versions compare greater than earlier versions.

+ *

+ * A run-time comparison to check that pixman's version is greater than

+ * or equal to version X.Y.Z could be performed as follows:

+ *

+ * <informalexample><programlisting>

+ * if (pixman_version() >= PIXMAN_VERSION_ENCODE(X,Y,Z)) {...}

+ * </programlisting></informalexample>

+ *

+ * See also pixman_version_string() as well as the compile-time

+ * equivalents %PIXMAN_VERSION and %PIXMAN_VERSION_STRING.

+ *

+ * Return value: the encoded version.

+ **/

+PIXMAN_EXPORT int

+pixman_version (void)

+{

+    return PIXMAN_VERSION;

+}

+

+/**

+ * pixman_version_string:

+ *

+ * Returns the version of the pixman library as a human-readable string

+ * of the form "X.Y.Z".

+ *

+ * See also pixman_version() as well as the compile-time equivalents

+ * %PIXMAN_VERSION_STRING and %PIXMAN_VERSION.

+ *

+ * Return value: a string containing the version.

+ **/

+PIXMAN_EXPORT const char*

+pixman_version_string (void)

+{

+    return PIXMAN_VERSION_STRING;

+}

+

+/**

+ * pixman_format_supported_source:

+ * @format: A pixman_format_code_t format

+ *

+ * Return value: whether the provided format code is a supported

+ * format for a pixman surface used as a source in

+ * rendering.

+ *

+ * Currently, all pixman_format_code_t values are supported.

+ **/

+PIXMAN_EXPORT pixman_bool_t

+pixman_format_supported_source (pixman_format_code_t format)

+{

+    switch (format)

+    {

+    /* 32 bpp formats */

+    case PIXMAN_a2b10g10r10:

+    case PIXMAN_x2b10g10r10:

+    case PIXMAN_a2r10g10b10:

+    case PIXMAN_x2r10g10b10:

+    case PIXMAN_a8r8g8b8:

+    case PIXMAN_x8r8g8b8:

+    case PIXMAN_a8b8g8r8:

+    case PIXMAN_x8b8g8r8:

+    case PIXMAN_b8g8r8a8:

+    case PIXMAN_b8g8r8x8:

+    case PIXMAN_r8g8b8a8:

+    case PIXMAN_r8g8b8x8:

+    case PIXMAN_r8g8b8:

+    case PIXMAN_b8g8r8:

+    case PIXMAN_r5g6b5:

+    case PIXMAN_b5g6r5:

+    case PIXMAN_x14r6g6b6:

+    /* 16 bpp formats */

+    case PIXMAN_a1r5g5b5:

+    case PIXMAN_x1r5g5b5:

+    case PIXMAN_a1b5g5r5:

+    case PIXMAN_x1b5g5r5:

+    case PIXMAN_a4r4g4b4:

+    case PIXMAN_x4r4g4b4:

+    case PIXMAN_a4b4g4r4:

+    case PIXMAN_x4b4g4r4:

+    /* 8bpp formats */

+    case PIXMAN_a8:

+    case PIXMAN_r3g3b2:

+    case PIXMAN_b2g3r3:

+    case PIXMAN_a2r2g2b2:

+    case PIXMAN_a2b2g2r2:

+    case PIXMAN_c8:

+    case PIXMAN_g8:

+    case PIXMAN_x4a4:

+    /* Collides with PIXMAN_c8

+       case PIXMAN_x4c4:

+     */

+    /* Collides with PIXMAN_g8

+       case PIXMAN_x4g4:

+     */

+    /* 4bpp formats */

+    case PIXMAN_a4:

+    case PIXMAN_r1g2b1:

+    case PIXMAN_b1g2r1:

+    case PIXMAN_a1r1g1b1:

+    case PIXMAN_a1b1g1r1:

+    case PIXMAN_c4:

+    case PIXMAN_g4:

+    /* 1bpp formats */

+    case PIXMAN_a1:

+    case PIXMAN_g1:

+    /* YUV formats */

+    case PIXMAN_yuy2:

+    case PIXMAN_yv12:

+	return TRUE;

+

+    default:

+	return FALSE;

+    }

+}

+

+/**

+ * pixman_format_supported_destination:

+ * @format: A pixman_format_code_t format

+ *

+ * Return value: whether the provided format code is a supported

+ * format for a pixman surface used as a destination in

+ * rendering.

+ *

+ * Currently, all pixman_format_code_t values are supported

+ * except for the YUV formats.

+ **/

+PIXMAN_EXPORT pixman_bool_t

+pixman_format_supported_destination (pixman_format_code_t format)

+{

+    /* YUV formats cannot be written to at the moment */

+    if (format == PIXMAN_yuy2 || format == PIXMAN_yv12)

+	return FALSE;

+

+    return pixman_format_supported_source (format);

+}

+

+PIXMAN_EXPORT pixman_bool_t

+pixman_compute_composite_region (pixman_region16_t * region,

+                                 pixman_image_t *    src_image,

+                                 pixman_image_t *    mask_image,

+                                 pixman_image_t *    dst_image,

+                                 int16_t             src_x,

+                                 int16_t             src_y,

+                                 int16_t             mask_x,

+                                 int16_t             mask_y,

+                                 int16_t             dest_x,

+                                 int16_t             dest_y,

+                                 uint16_t            width,

+                                 uint16_t            height)

+{

+    pixman_region32_t r32;

+    pixman_bool_t retval;

+

+    pixman_region32_init (&r32);

+

+    retval = pixman_compute_composite_region32 (

+	&r32, src_image, mask_image, dst_image,

+	src_x, src_y, mask_x, mask_y, dest_x, dest_y,

+	width, height);

+

+    if (retval)

+    {

+	if (!pixman_region16_copy_from_region32 (region, &r32))

+	    retval = FALSE;

+    }

+

+    pixman_region32_fini (&r32);

+    return retval;

+}