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delete libraries/pixman

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git-svn-id: svn://kolibrios.org@4354 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Sergey Semyonov (Serge) 2013-12-15 08:21:05 +00:00
parent ca0ff73f27
commit fed5fef52f
44 changed files with 0 additions and 35561 deletions
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42
programs/develop/libraries/pixman/COPYING
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The following is the MIT license, agreed upon by most contributors.
Copyright holders of new code should use this license statement where
possible. They may also add themselves to the list below.
/*
* Copyright 1987, 1988, 1989, 1998 The Open Group
* Copyright 1987, 1988, 1989 Digital Equipment Corporation
* Copyright 1999, 2004, 2008 Keith Packard
* Copyright 2000 SuSE, Inc.
* Copyright 2000 Keith Packard, member of The XFree86 Project, Inc.
* Copyright 2004, 2005, 2007, 2008, 2009, 2010 Red Hat, Inc.
* Copyright 2004 Nicholas Miell
* Copyright 2005 Lars Knoll & Zack Rusin, Trolltech
* Copyright 2005 Trolltech AS
* Copyright 2007 Luca Barbato
* Copyright 2008 Aaron Plattner, NVIDIA Corporation
* Copyright 2008 Rodrigo Kumpera
* Copyright 2008 André Tupinambá
* Copyright 2008 Mozilla Corporation
* Copyright 2008 Frederic Plourde
* Copyright 2009, Oracle and/or its affiliates. All rights reserved.
* Copyright 2009, 2010 Nokia Corporation
*
* 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.
*/

82
programs/develop/libraries/pixman/Makefile
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LIBRARY = pixman-1
CC = gcc
CFLAGS = -U_Win32 -U_WIN32 -U__MINGW32__ -c -O2 -Wall -Winline -fomit-frame-pointer
LD = ld
LDFLAGS = -shared -s -nostdlib -T ../newlib/dll.lds --entry _DllStartup --image-base=0 --out-implib lib$(LIBRARY).dll.a
STRIP = $(PREFIX)strip
INCLUDES= -I. -I../newlib/include
LIBPATH:= -L../newlib
LIBS:= -ldll -lc.dll -lgcc
#DEFINES = -DHAVE_CONFIG_H -DPIXMAN_NO_TLS
DEFINES = -DHAVE_CONFIG_H
SOURCES = \
pixman.c \
pixman-access.c \
pixman-access-accessors.c \
pixman-bits-image.c \
pixman-combine32.c \
pixman-combine-float.c \
pixman-conical-gradient.c \
pixman-edge.c \
pixman-edge-accessors.c \
pixman-fast-path.c \
pixman-filter.c \
pixman-general.c \
pixman-glyph.c \
pixman-gradient-walker.c \
pixman-image.c \
pixman-implementation.c \
pixman-linear-gradient.c \
pixman-matrix.c \
pixman-noop.c \
pixman-radial-gradient.c \
pixman-region16.c \
pixman-region32.c \
pixman-solid-fill.c \
pixman-timer.c \
pixman-trap.c \
pixman-utils.c \
pixman-x86.c \
pixman-mmx.c \
pixman-sse2.c \
$(NULL)
OBJECTS = $(patsubst %.c, %.o, $(SOURCES))
# targets
all:$(LIBRARY).a $(LIBRARY).dll
$(LIBRARY).a: $(OBJECTS) Makefile
ar cvrs $(LIBRARY).a $(OBJECTS)
$(LIBRARY).dll: $(LIBRARY).def $(OBJECTS) Makefile
$(LD) $(LDFLAGS) $(LIBPATH) -o $@ $(LIBRARY).def $(OBJECTS) $(LIBS)
$(STRIP) $@
sed -f ../newlib/cmd1.sed $(LIBRARY).def > mem
sed -f ../newlib/cmd2.sed mem >$(LIBRARY).inc
%.o : %.c Makefile
$(CC) $(CFLAGS) $(DEFINES) $(INCLUDES) -o $@ $<
pixman-mmx.o: pixman-mmx.c Makefile
$(CC) $(CFLAGS) -mmmx $(DEFINES) $(INCLUDES) -o $@ $<
pixman-sse2.o: pixman-sse2.c Makefile
$(CC) $(CFLAGS) -msse2 $(DEFINES) $(INCLUDES) -o $@ $<
clean:
-rm -f *.o

116
programs/develop/libraries/pixman/README
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Pixman is a library that provides low-level pixel manipulation
features such as image compositing and trapezoid rasterization.
Questions, bug reports and patches should be directed to the pixman
mailing list:
http://lists.freedesktop.org/mailman/listinfo/pixman
You can also file bugs at
https://bugs.freedesktop.org/enter_bug.cgi?product=pixman
For real time discussions about pixman, feel free to join the IRC
channels #cairo and #xorg-devel on the FreeNode IRC network.
Contributing
------------
In order to contribute to pixman, you will need a working knowledge of
the git version control system. For a quick getting started guide,
there is the "Everyday Git With 20 Commands Or So guide"
http://www.kernel.org/pub/software/scm/git/docs/everyday.html
from the Git homepage. For more in depth git documentation, see the
resources on the Git community documentation page:
http://git-scm.com/documentation
Pixman uses the infrastructure from the freedesktop.org umbrella
project. For instructions about how to use the git service on
freedesktop.org, see:
http://www.freedesktop.org/wiki/Infrastructure/git/Developers
The Pixman master repository can be found at:
git://anongit.freedesktop.org/git/pixman
and browsed on the web here:
http://cgit.freedesktop.org/pixman/
Sending patches
---------------
The general workflow for sending patches is to first make sure that
git can send mail on your system. Then,
- create a branch off of master in your local git repository
- make your changes as one or more commits
- use the
git send-email
command to send the patch series to pixman@lists.freedesktop.org.
In order for your patches to be accepted, please consider the
following guidelines:
- This link:
http://www.kernel.org/pub/software/scm/git/docs/user-manual.html#patch-series
describes how what a good patch series is, and to create one with
git.
- At each point in the series, pixman should compile and the test
suite should pass.
The exception here is if you are changing the test suite to
demonstrate a bug. In this case, make one commit that makes the
test suite fail due to the bug, and then another commit that fixes
the bug.
You can run the test suite with
make check
It will take around two minutes to run on a modern PC.
- Follow the coding style described in the CODING_STYLE file
- For bug fixes, include an update to the test suite to make sure
the bug doesn't reappear.
- For new features, add tests of the feature to the test
suite. Also, add a program demonstrating the new feature to the
demos/ directory.
- Write descriptive commit messages. Useful information to include:
- Benchmark results, before and after
- Description of the bug that was fixed
- Detailed rationale for any new API
- Alternative approaches that were rejected (and why they
don't work)
- If review comments were incorporated, a brief version
history describing what those changes were.
- For big patch series, send an introductory email with an overall
description of the patch series, including benchmarks and
motivation. Each commit message should still be descriptive and
include enough information to understand why this particular commit
was necessary.
Pixman has high standards for code quality and so almost everybody
should expect to have the first versions of their patches rejected.
If you think that the reviewers are wrong about something, or that the
guidelines above are wrong, feel free to discuss the issue on the
list. The purpose of the guidelines and code review is to ensure high
code quality; it is not an exercise in compliance.

174
programs/develop/libraries/pixman/config.h
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/* config.h. Generated from config.h.in by configure. */
/* config.h.in. Generated from configure.ac by autoheader. */
/* Define if building universal (internal helper macro) */
/* #undef AC_APPLE_UNIVERSAL_BUILD */
/* Whether we have alarm() */
/* #undef HAVE_ALARM */
/* Define to 1 if you have the <dlfcn.h> header file. */
/* #undef HAVE_DLFCN_H */
/* Whether we have feenableexcept() */
/* #undef HAVE_FEENABLEEXCEPT */
/* Define to 1 if we have <fenv.h> */
#define HAVE_FENV_H 1
/* Whether the tool chain supports __float128 */
#define HAVE_FLOAT128 /**/
/* Define to 1 if you have the `getisax' function. */
/* #undef HAVE_GETISAX */
/* Whether we have getpagesize() */
#define HAVE_GETPAGESIZE 1
/* Whether we have gettimeofday() */
#define HAVE_GETTIMEOFDAY 1
/* Define to 1 if you have the <inttypes.h> header file. */
#define HAVE_INTTYPES_H 1
/* Define to 1 if you have the `pixman-1' library (-lpixman-1). */
/* #undef HAVE_LIBPIXMAN_1 */
/* Whether we have libpng */
#define HAVE_LIBPNG 1
/* Define to 1 if you have the <memory.h> header file. */
#define HAVE_MEMORY_H 1
/* Whether we have mmap() */
#define HAVE_MMAP
/* Whether we have mprotect() */
#define HAVE_MPROTECT 1
/* Whether we have posix_memalign() */
/* #undef HAVE_POSIX_MEMALIGN */
/* Whether pthread_setspecific() is supported */
/* #undef HAVE_PTHREAD_SETSPECIFIC */
/* Whether we have sigaction() */
/* #undef HAVE_SIGACTION */
/* Define to 1 if you have the <stdint.h> header file. */
#define HAVE_STDINT_H 1
/* Define to 1 if you have the <stdlib.h> header file. */
#define HAVE_STDLIB_H 1
/* Define to 1 if you have the <strings.h> header file. */
#define HAVE_STRINGS_H 1
/* Define to 1 if you have the <string.h> header file. */
#define HAVE_STRING_H 1
/* Define to 1 if we have <sys/mman.h> */
/* #undef HAVE_SYS_MMAN_H */
/* Define to 1 if you have the <sys/stat.h> header file. */
#define HAVE_SYS_STAT_H 1
/* Define to 1 if you have the <sys/types.h> header file. */
#define HAVE_SYS_TYPES_H 1
/* Define to 1 if you have the <unistd.h> header file. */
#define HAVE_UNISTD_H 1
/* Define to the sub-directory in which libtool stores uninstalled libraries.
*/
#define LT_OBJDIR ".libs/"
/* Name of package */
#define PACKAGE "pixman"
/* Define to the address where bug reports for this package should be sent. */
#define PACKAGE_BUGREPORT "pixman@lists.freedesktop.org"
/* Define to the full name of this package. */
#define PACKAGE_NAME "pixman"
/* Define to the full name and version of this package. */
#define PACKAGE_STRING "pixman 0.30.2"
/* Define to the one symbol short name of this package. */
#define PACKAGE_TARNAME "pixman"
/* Define to the home page for this package. */
#define PACKAGE_URL ""
/* Define to the version of this package. */
#define PACKAGE_VERSION "0.30.2"
/* enable TIMER_BEGIN/TIMER_END macros */
/* #undef PIXMAN_TIMERS */
/* The size of `long', as computed by sizeof. */
#define SIZEOF_LONG 4
/* Define to 1 if you have the ANSI C header files. */
#define STDC_HEADERS 1
/* The compiler supported TLS storage class */
#define TLS __thread
/* Whether the tool chain supports __attribute__((constructor)) */
//#define TOOLCHAIN_SUPPORTS_ATTRIBUTE_CONSTRUCTOR /**/
/* use ARM IWMMXT compiler intrinsics */
/* #undef USE_ARM_IWMMXT */
/* use ARM NEON assembly optimizations */
/* #undef USE_ARM_NEON */
/* use ARM SIMD assembly optimizations */
/* #undef USE_ARM_SIMD */
/* use GNU-style inline assembler */
#define USE_GCC_INLINE_ASM 1
/* use Loongson Multimedia Instructions */
/* #undef USE_LOONGSON_MMI */
/* use MIPS DSPr2 assembly optimizations */
/* #undef USE_MIPS_DSPR2 */
/* use OpenMP in the test suite */
/* #undef USE_OPENMP */
/* use SSE2 compiler intrinsics */
#define USE_SSE2 1
/* use VMX compiler intrinsics */
/* #undef USE_VMX */
/* use x86 MMX compiler intrinsics */
#define USE_X86_MMX 1
/* Version number of package */
#define VERSION "0.30.2"
/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
significant byte first (like Motorola and SPARC, unlike Intel). */
#if defined AC_APPLE_UNIVERSAL_BUILD
# if defined __BIG_ENDIAN__
# define WORDS_BIGENDIAN 1
# endif
#else
# ifndef WORDS_BIGENDIAN
/* # undef WORDS_BIGENDIAN */
# endif
#endif
/* Define to `__inline__' or `__inline' if that's what the C compiler
calls it, or to nothing if 'inline' is not supported under any name. */
#ifndef __cplusplus
/* #undef inline */
#endif
/* Define to sqrt if you do not have the `sqrtf' function. */
/* #undef sqrtf */

148
programs/develop/libraries/pixman/pixman-1.def
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EXPORTS
_pixman_internal_only_get_implementation
pixman_add_trapezoids
pixman_add_traps
pixman_add_triangles
pixman_blt
pixman_composite_glyphs
pixman_composite_glyphs_no_mask
pixman_composite_trapezoids
pixman_composite_triangles
pixman_compute_composite_region
pixman_disable_out_of_bounds_workaround
pixman_edge_init
pixman_edge_step
pixman_f_transform_bounds
pixman_f_transform_from_pixman_transform
pixman_f_transform_init_identity
pixman_f_transform_init_rotate
pixman_f_transform_init_scale
pixman_f_transform_init_translate
pixman_f_transform_invert
pixman_f_transform_multiply
pixman_f_transform_point
pixman_f_transform_point_3d
pixman_f_transform_rotate
pixman_f_transform_scale
pixman_f_transform_translate
pixman_fill
pixman_filter_create_separable_convolution
pixman_format_supported_destination
pixman_format_supported_source
pixman_glyph_cache_create
pixman_glyph_cache_destroy
pixman_glyph_cache_freeze
pixman_glyph_cache_insert
pixman_glyph_cache_lookup
pixman_glyph_cache_remove
pixman_glyph_cache_thaw
pixman_glyph_get_extents
pixman_glyph_get_mask_format
pixman_image_composite
pixman_image_composite32
pixman_image_create_bits
pixman_image_create_bits_no_clear
pixman_image_create_conical_gradient
pixman_image_create_linear_gradient
pixman_image_create_radial_gradient
pixman_image_create_solid_fill
pixman_image_fill_boxes
pixman_image_fill_rectangles
pixman_image_get_component_alpha
pixman_image_get_data
pixman_image_get_depth
pixman_image_get_destroy_data
pixman_image_get_format
pixman_image_get_height
pixman_image_get_stride
pixman_image_get_width
pixman_image_ref
pixman_image_set_accessors
pixman_image_set_alpha_map
pixman_image_set_clip_region
pixman_image_set_clip_region32
pixman_image_set_component_alpha
pixman_image_set_destroy_function
pixman_image_set_filter
pixman_image_set_has_client_clip
pixman_image_set_indexed
pixman_image_set_repeat
pixman_image_set_source_clipping
pixman_image_set_transform
pixman_image_unref
pixman_line_fixed_edge_init
pixman_rasterize_edges
pixman_rasterize_trapezoid
pixman_region32_clear
pixman_region32_contains_point
pixman_region32_contains_rectangle
pixman_region32_copy
pixman_region32_equal
pixman_region32_extents
pixman_region32_fini
pixman_region32_init
pixman_region32_init_from_image
pixman_region32_init_rect
pixman_region32_init_rects
pixman_region32_init_with_extents
pixman_region32_intersect
pixman_region32_intersect_rect
pixman_region32_inverse
pixman_region32_n_rects
pixman_region32_not_empty
pixman_region32_rectangles
pixman_region32_reset
pixman_region32_selfcheck
pixman_region32_subtract
pixman_region32_translate
pixman_region32_union
pixman_region32_union_rect
pixman_region_clear
pixman_region_contains_point
pixman_region_contains_rectangle
pixman_region_copy
pixman_region_equal
pixman_region_extents
pixman_region_fini
pixman_region_init
pixman_region_init_from_image
pixman_region_init_rect
pixman_region_init_rects
pixman_region_init_with_extents
pixman_region_intersect
pixman_region_intersect_rect
pixman_region_inverse
pixman_region_n_rects
pixman_region_not_empty
pixman_region_rectangles
pixman_region_reset
pixman_region_selfcheck
pixman_region_set_static_pointers
pixman_region_subtract
pixman_region_translate
pixman_region_union
pixman_region_union_rect
pixman_sample_ceil_y
pixman_sample_floor_y
pixman_transform_bounds
pixman_transform_from_pixman_f_transform
pixman_transform_init_identity
pixman_transform_init_rotate
pixman_transform_init_scale
pixman_transform_init_translate
pixman_transform_invert
pixman_transform_is_identity
pixman_transform_is_int_translate
pixman_transform_is_inverse
pixman_transform_is_scale
pixman_transform_multiply
pixman_transform_point
pixman_transform_point_31_16
pixman_transform_point_31_16_3d
pixman_transform_point_31_16_affine
pixman_transform_point_3d
pixman_transform_rotate
pixman_transform_scale
pixman_transform_translate
pixman_version
pixman_version_string

3
programs/develop/libraries/pixman/pixman-access-accessors.c
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#define PIXMAN_FB_ACCESSORS
#include "pixman-access.c"

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programs/develop/libraries/pixman/pixman-accessor.h
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#ifdef PIXMAN_FB_ACCESSORS
#define READ(img, ptr) \
(((bits_image_t *)(img))->read_func ((ptr), sizeof(*(ptr))))
#define WRITE(img, ptr,val) \
(((bits_image_t *)(img))->write_func ((ptr), (val), sizeof (*(ptr))))
#define MEMSET_WRAPPED(img, dst, val, size) \
do { \
size_t _i; \
uint8_t *_dst = (uint8_t*)(dst); \
for(_i = 0; _i < (size_t) size; _i++) { \
WRITE((img), _dst +_i, (val)); \
} \
} while (0)
#else
#define READ(img, ptr) (*(ptr))
#define WRITE(img, ptr, val) (*(ptr) = (val))
#define MEMSET_WRAPPED(img, dst, val, size) \
memset(dst, val, size)
#endif

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programs/develop/libraries/pixman/pixman-combine-float.c
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programs/develop/libraries/pixman/pixman-combine32.h
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#define COMPONENT_SIZE 8
#define MASK 0xff
#define ONE_HALF 0x80
#define A_SHIFT 8 * 3
#define R_SHIFT 8 * 2
#define G_SHIFT 8
#define A_MASK 0xff000000
#define R_MASK 0xff0000
#define G_MASK 0xff00
#define RB_MASK 0xff00ff
#define AG_MASK 0xff00ff00
#define RB_ONE_HALF 0x800080
#define RB_MASK_PLUS_ONE 0x10000100
#define ALPHA_8(x) ((x) >> A_SHIFT)
#define RED_8(x) (((x) >> R_SHIFT) & MASK)
#define GREEN_8(x) (((x) >> G_SHIFT) & MASK)
#define BLUE_8(x) ((x) & MASK)
/*
* ARMv6 has UQADD8 instruction, which implements unsigned saturated
* addition for 8-bit values packed in 32-bit registers. It is very useful
* for UN8x4_ADD_UN8x4, UN8_rb_ADD_UN8_rb and ADD_UN8 macros (which would
* otherwise need a lot of arithmetic operations to simulate this operation).
* Since most of the major ARM linux distros are built for ARMv7, we are
* much less dependent on runtime CPU detection and can get practical
* benefits from conditional compilation here for a lot of users.
*/
#if defined(USE_GCC_INLINE_ASM) && defined(__arm__) && \
!defined(__aarch64__) && (!defined(__thumb__) || defined(__thumb2__))
#if defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || \
defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6Z__) || \
defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_6T2__) || \
defined(__ARM_ARCH_6M__) || defined(__ARM_ARCH_7__) || \
defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7R__) || \
defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7EM__)
static force_inline uint32_t
un8x4_add_un8x4 (uint32_t x, uint32_t y)
{
uint32_t t;
asm ("uqadd8 %0, %1, %2" : "=r" (t) : "%r" (x), "r" (y));
return t;
}
#define UN8x4_ADD_UN8x4(x, y) \
((x) = un8x4_add_un8x4 ((x), (y)))
#define UN8_rb_ADD_UN8_rb(x, y, t) \
((t) = un8x4_add_un8x4 ((x), (y)), (x) = (t))
#define ADD_UN8(x, y, t) \
((t) = (x), un8x4_add_un8x4 ((t), (y)))
#endif
#endif
/*****************************************************************************/
/*
* Helper macros.
*/
#define MUL_UN8(a, b, t) \
((t) = (a) * (uint16_t)(b) + ONE_HALF, ((((t) >> G_SHIFT ) + (t) ) >> G_SHIFT ))
#define DIV_UN8(a, b) \
(((uint16_t) (a) * MASK + ((b) / 2)) / (b))
#ifndef ADD_UN8
#define ADD_UN8(x, y, t) \
((t) = (x) + (y), \
(uint32_t) (uint8_t) ((t) | (0 - ((t) >> G_SHIFT))))
#endif
#define DIV_ONE_UN8(x) \
(((x) + ONE_HALF + (((x) + ONE_HALF) >> G_SHIFT)) >> G_SHIFT)
/*
* The methods below use some tricks to be able to do two color
* components at the same time.
*/
/*
* x_rb = (x_rb * a) / 255
*/
#define UN8_rb_MUL_UN8(x, a, t) \
do \
{ \
t = ((x) & RB_MASK) * (a); \
t += RB_ONE_HALF; \
x = (t + ((t >> G_SHIFT) & RB_MASK)) >> G_SHIFT; \
x &= RB_MASK; \
} while (0)
/*
* x_rb = min (x_rb + y_rb, 255)
*/
#ifndef UN8_rb_ADD_UN8_rb
#define UN8_rb_ADD_UN8_rb(x, y, t) \
do \
{ \
t = ((x) + (y)); \
t |= RB_MASK_PLUS_ONE - ((t >> G_SHIFT) & RB_MASK); \
x = (t & RB_MASK); \
} while (0)
#endif
/*
* x_rb = (x_rb * a_rb) / 255
*/
#define UN8_rb_MUL_UN8_rb(x, a, t) \
do \
{ \
t = (x & MASK) * (a & MASK); \
t |= (x & R_MASK) * ((a >> R_SHIFT) & MASK); \
t += RB_ONE_HALF; \
t = (t + ((t >> G_SHIFT) & RB_MASK)) >> G_SHIFT; \
x = t & RB_MASK; \
} while (0)
/*
* x_c = (x_c * a) / 255
*/
#define UN8x4_MUL_UN8(x, a) \
do \
{ \
uint32_t r1__, r2__, t__; \
\
r1__ = (x); \
UN8_rb_MUL_UN8 (r1__, (a), t__); \
\
r2__ = (x) >> G_SHIFT; \
UN8_rb_MUL_UN8 (r2__, (a), t__); \
\
(x) = r1__ | (r2__ << G_SHIFT); \
} while (0)
/*
* x_c = (x_c * a) / 255 + y_c
*/
#define UN8x4_MUL_UN8_ADD_UN8x4(x, a, y) \
do \
{ \
uint32_t r1__, r2__, r3__, t__; \
\
r1__ = (x); \
r2__ = (y) & RB_MASK; \
UN8_rb_MUL_UN8 (r1__, (a), t__); \
UN8_rb_ADD_UN8_rb (r1__, r2__, t__); \
\
r2__ = (x) >> G_SHIFT; \
r3__ = ((y) >> G_SHIFT) & RB_MASK; \
UN8_rb_MUL_UN8 (r2__, (a), t__); \
UN8_rb_ADD_UN8_rb (r2__, r3__, t__); \
\
(x) = r1__ | (r2__ << G_SHIFT); \
} while (0)
/*
* x_c = (x_c * a + y_c * b) / 255
*/
#define UN8x4_MUL_UN8_ADD_UN8x4_MUL_UN8(x, a, y, b) \
do \
{ \
uint32_t r1__, r2__, r3__, t__; \
\
r1__ = (x); \
r2__ = (y); \
UN8_rb_MUL_UN8 (r1__, (a), t__); \
UN8_rb_MUL_UN8 (r2__, (b), t__); \
UN8_rb_ADD_UN8_rb (r1__, r2__, t__); \
\
r2__ = ((x) >> G_SHIFT); \
r3__ = ((y) >> G_SHIFT); \
UN8_rb_MUL_UN8 (r2__, (a), t__); \
UN8_rb_MUL_UN8 (r3__, (b), t__); \
UN8_rb_ADD_UN8_rb (r2__, r3__, t__); \
\
(x) = r1__ | (r2__ << G_SHIFT); \
} while (0)
/*
* x_c = (x_c * a_c) / 255
*/
#define UN8x4_MUL_UN8x4(x, a) \
do \
{ \
uint32_t r1__, r2__, r3__, t__; \
\
r1__ = (x); \
r2__ = (a); \
UN8_rb_MUL_UN8_rb (r1__, r2__, t__); \
\
r2__ = (x) >> G_SHIFT; \
r3__ = (a) >> G_SHIFT; \
UN8_rb_MUL_UN8_rb (r2__, r3__, t__); \
\
(x) = r1__ | (r2__ << G_SHIFT); \
} while (0)
/*
* x_c = (x_c * a_c) / 255 + y_c
*/
#define UN8x4_MUL_UN8x4_ADD_UN8x4(x, a, y) \
do \
{ \
uint32_t r1__, r2__, r3__, t__; \
\
r1__ = (x); \
r2__ = (a); \
UN8_rb_MUL_UN8_rb (r1__, r2__, t__); \
r2__ = (y) & RB_MASK; \
UN8_rb_ADD_UN8_rb (r1__, r2__, t__); \
\
r2__ = ((x) >> G_SHIFT); \
r3__ = ((a) >> G_SHIFT); \
UN8_rb_MUL_UN8_rb (r2__, r3__, t__); \
r3__ = ((y) >> G_SHIFT) & RB_MASK; \
UN8_rb_ADD_UN8_rb (r2__, r3__, t__); \
\
(x) = r1__ | (r2__ << G_SHIFT); \
} while (0)
/*
* x_c = (x_c * a_c + y_c * b) / 255
*/
#define UN8x4_MUL_UN8x4_ADD_UN8x4_MUL_UN8(x, a, y, b) \
do \
{ \
uint32_t r1__, r2__, r3__, t__; \
\
r1__ = (x); \
r2__ = (a); \
UN8_rb_MUL_UN8_rb (r1__, r2__, t__); \
r2__ = (y); \
UN8_rb_MUL_UN8 (r2__, (b), t__); \
UN8_rb_ADD_UN8_rb (r1__, r2__, t__); \
\
r2__ = (x) >> G_SHIFT; \
r3__ = (a) >> G_SHIFT; \
UN8_rb_MUL_UN8_rb (r2__, r3__, t__); \
r3__ = (y) >> G_SHIFT; \
UN8_rb_MUL_UN8 (r3__, (b), t__); \
UN8_rb_ADD_UN8_rb (r2__, r3__, t__); \
\
x = r1__ | (r2__ << G_SHIFT); \
} while (0)
/*
x_c = min(x_c + y_c, 255)
*/
#ifndef UN8x4_ADD_UN8x4
#define UN8x4_ADD_UN8x4(x, y) \
do \
{ \
uint32_t r1__, r2__, r3__, t__; \
\
r1__ = (x) & RB_MASK; \
r2__ = (y) & RB_MASK; \
UN8_rb_ADD_UN8_rb (r1__, r2__, t__); \
\
r2__ = ((x) >> G_SHIFT) & RB_MASK; \
r3__ = ((y) >> G_SHIFT) & RB_MASK; \
UN8_rb_ADD_UN8_rb (r2__, r3__, t__); \
\
x = r1__ | (r2__ << G_SHIFT); \
} while (0)
#endif

232
programs/develop/libraries/pixman/pixman-compiler.h
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@ -1,232 +0,0 @@
/* Pixman uses some non-standard compiler features. This file ensures
* they exist
*
* The features are:
*
* FUNC must be defined to expand to the current function
* PIXMAN_EXPORT should be defined to whatever is required to
* export functions from a shared library
* limits limits for various types must be defined
* inline must be defined
* force_inline must be defined
*/
#if defined (__GNUC__)
# define FUNC ((const char*) (__PRETTY_FUNCTION__))
#elif defined (__sun) || (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L)
# define FUNC ((const char*) (__func__))
#else
# define FUNC ((const char*) ("???"))
#endif
#if defined (__GNUC__)
# define unlikely(expr) __builtin_expect ((expr), 0)
#else
# define unlikely(expr) (expr)
#endif
#if defined (__GNUC__)
# define MAYBE_UNUSED __attribute__((unused))
#else
# define MAYBE_UNUSED
#endif
#ifndef INT16_MIN
# define INT16_MIN (-32767-1)
#endif
#ifndef INT16_MAX
# define INT16_MAX (32767)
#endif
#ifndef INT32_MIN
# define INT32_MIN (-2147483647-1)
#endif
#ifndef INT32_MAX
# define INT32_MAX (2147483647)
#endif
#ifndef UINT32_MIN
# define UINT32_MIN (0)
#endif
#ifndef UINT32_MAX
# define UINT32_MAX (4294967295U)
#endif
#ifndef INT64_MIN
# define INT64_MIN (-9223372036854775807-1)
#endif
#ifndef INT64_MAX
# define INT64_MAX (9223372036854775807)
#endif
#ifndef SIZE_MAX
# define SIZE_MAX ((size_t)-1)
#endif
#ifndef M_PI
# define M_PI 3.14159265358979323846
#endif
#ifdef _MSC_VER
/* 'inline' is available only in C++ in MSVC */
# define inline __inline
# define force_inline __forceinline
# define noinline __declspec(noinline)
#elif defined __GNUC__ || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590))
# define inline __inline__
# define force_inline __inline__ __attribute__ ((__always_inline__))
# define noinline __attribute__((noinline))
#else
# ifndef force_inline
# define force_inline inline
# endif
# ifndef noinline
# define noinline
# endif
#endif
/* GCC visibility */
#if defined(__GNUC__) && __GNUC__ >= 4 && !defined(_WIN32)
# define PIXMAN_EXPORT __attribute__ ((visibility("default")))
/* Sun Studio 8 visibility */
#elif defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550)
# define PIXMAN_EXPORT __global
#else
# define PIXMAN_EXPORT
#endif
/* member offsets */
#define CONTAINER_OF(type, member, data) \
((type *)(((uint8_t *)data) - offsetof (type, member)))
/* TLS */
#if defined(PIXMAN_NO_TLS)
# define PIXMAN_DEFINE_THREAD_LOCAL(type, name) \
static type name
# define PIXMAN_GET_THREAD_LOCAL(name) \
(&name)
#elif defined(TLS)
# define PIXMAN_DEFINE_THREAD_LOCAL(type, name) \
static TLS type name
# define PIXMAN_GET_THREAD_LOCAL(name) \
(&name)
#elif defined(__MINGW32__)
# define _NO_W32_PSEUDO_MODIFIERS
# include <windows.h>
# define PIXMAN_DEFINE_THREAD_LOCAL(type, name) \
static volatile int tls_ ## name ## _initialized = 0; \
static void *tls_ ## name ## _mutex = NULL; \
static unsigned tls_ ## name ## _index; \
\
static type * \
tls_ ## name ## _alloc (void) \
{ \
type *value = calloc (1, sizeof (type)); \
if (value) \
TlsSetValue (tls_ ## name ## _index, value); \
return value; \
} \
\
static force_inline type * \
tls_ ## name ## _get (void) \
{ \
type *value; \
if (!tls_ ## name ## _initialized) \
{ \
if (!tls_ ## name ## _mutex) \
{ \
void *mutex = CreateMutexA (NULL, 0, NULL); \
if (InterlockedCompareExchangePointer ( \
&tls_ ## name ## _mutex, mutex, NULL) != NULL) \
{ \
CloseHandle (mutex); \
} \
} \
WaitForSingleObject (tls_ ## name ## _mutex, 0xFFFFFFFF); \
if (!tls_ ## name ## _initialized) \
{ \
tls_ ## name ## _index = TlsAlloc (); \
tls_ ## name ## _initialized = 1; \
} \
ReleaseMutex (tls_ ## name ## _mutex); \
} \
if (tls_ ## name ## _index == 0xFFFFFFFF) \
return NULL; \
value = TlsGetValue (tls_ ## name ## _index); \
if (!value) \
value = tls_ ## name ## _alloc (); \
return value; \
}
# define PIXMAN_GET_THREAD_LOCAL(name) \
tls_ ## name ## _get ()
#elif defined(_MSC_VER)
# define PIXMAN_DEFINE_THREAD_LOCAL(type, name) \
static __declspec(thread) type name
# define PIXMAN_GET_THREAD_LOCAL(name) \
(&name)
#elif defined(HAVE_PTHREAD_SETSPECIFIC)
#include <pthread.h>
# define PIXMAN_DEFINE_THREAD_LOCAL(type, name) \
static pthread_once_t tls_ ## name ## _once_control = PTHREAD_ONCE_INIT; \
static pthread_key_t tls_ ## name ## _key; \
\
static void \
tls_ ## name ## _destroy_value (void *value) \
{ \
free (value); \
} \
\
static void \
tls_ ## name ## _make_key (void) \
{ \
pthread_key_create (&tls_ ## name ## _key, \
tls_ ## name ## _destroy_value); \
} \
\
static type * \
tls_ ## name ## _alloc (void) \
{ \
type *value = calloc (1, sizeof (type)); \
if (value) \
pthread_setspecific (tls_ ## name ## _key, value); \
return value; \
} \
\
static force_inline type * \
tls_ ## name ## _get (void) \
{ \
type *value = NULL; \
if (pthread_once (&tls_ ## name ## _once_control, \
tls_ ## name ## _make_key) == 0) \
{ \
value = pthread_getspecific (tls_ ## name ## _key); \
if (!value) \
value = tls_ ## name ## _alloc (); \
} \
return value; \
}
# define PIXMAN_GET_THREAD_LOCAL(name) \
tls_ ## name ## _get ()
#else
# error "Unknown thread local support for this system. Pixman will not work with multiple threads. Define PIXMAN_NO_TLS to acknowledge and accept this limitation and compile pixman without thread-safety support."
#endif

212
programs/develop/libraries/pixman/pixman-conical-gradient.c
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@ -1,212 +0,0 @@
/*
* Copyright © 2000 SuSE, Inc.
* Copyright © 2007 Red Hat, Inc.
* Copyright © 2000 Keith Packard, member of The XFree86 Project, Inc.
* 2005 Lars Knoll & Zack Rusin, Trolltech
*
* 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 Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS 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 <stdlib.h>
#include <math.h>
#include "pixman-private.h"
static force_inline double
coordinates_to_parameter (double x, double y, double angle)
{
double t;
t = atan2 (y, x) + angle;
while (t < 0)
t += 2 * M_PI;
while (t >= 2 * M_PI)
t -= 2 * M_PI;
return 1 - t * (1 / (2 * M_PI)); /* Scale t to [0, 1] and
* make rotation CCW
*/
}
static uint32_t *
conical_get_scanline_narrow (pixman_iter_t *iter, const uint32_t *mask)
{
pixman_image_t *image = iter->image;
int x = iter->x;
int y = iter->y;
int width = iter->width;
uint32_t *buffer = iter->buffer;
gradient_t *gradient = (gradient_t *)image;
conical_gradient_t *conical = (conical_gradient_t *)image;
uint32_t *end = buffer + width;
pixman_gradient_walker_t walker;
pixman_bool_t affine = TRUE;
double cx = 1.;
double cy = 0.;
double cz = 0.;
double rx = x + 0.5;
double ry = y + 0.5;
double rz = 1.;
_pixman_gradient_walker_init (&walker, gradient, image->common.repeat);
if (image->common.transform)
{
pixman_vector_t v;
/* reference point is the center of the pixel */
v.vector[0] = pixman_int_to_fixed (x) + pixman_fixed_1 / 2;
v.vector[1] = pixman_int_to_fixed (y) + pixman_fixed_1 / 2;
v.vector[2] = pixman_fixed_1;
if (!pixman_transform_point_3d (image->common.transform, &v))
return iter->buffer;
cx = image->common.transform->matrix[0][0] / 65536.;
cy = image->common.transform->matrix[1][0] / 65536.;
cz = image->common.transform->matrix[2][0] / 65536.;
rx = v.vector[0] / 65536.;
ry = v.vector[1] / 65536.;
rz = v.vector[2] / 65536.;
affine =
image->common.transform->matrix[2][0] == 0 &&
v.vector[2] == pixman_fixed_1;
}
if (affine)
{
rx -= conical->center.x / 65536.;
ry -= conical->center.y / 65536.;
while (buffer < end)
{
if (!mask || *mask++)
{
double t = coordinates_to_parameter (rx, ry, conical->angle);
*buffer = _pixman_gradient_walker_pixel (
&walker, (pixman_fixed_48_16_t)pixman_double_to_fixed (t));
}
++buffer;
rx += cx;
ry += cy;
}
}
else
{
while (buffer < end)
{
double x, y;
if (!mask || *mask++)
{
double t;
if (rz != 0)
{
x = rx / rz;
y = ry / rz;
}
else
{
x = y = 0.;
}
x -= conical->center.x / 65536.;
y -= conical->center.y / 65536.;
t = coordinates_to_parameter (x, y, conical->angle);
*buffer = _pixman_gradient_walker_pixel (
&walker, (pixman_fixed_48_16_t)pixman_double_to_fixed (t));
}
++buffer;
rx += cx;
ry += cy;
rz += cz;
}
}
iter->y++;
return iter->buffer;
}
static uint32_t *
conical_get_scanline_wide (pixman_iter_t *iter, const uint32_t *mask)
{
uint32_t *buffer = conical_get_scanline_narrow (iter, NULL);
pixman_expand_to_float (
(argb_t *)buffer, buffer, PIXMAN_a8r8g8b8, iter->width);
return buffer;
}
void
_pixman_conical_gradient_iter_init (pixman_image_t *image, pixman_iter_t *iter)
{
if (iter->iter_flags & ITER_NARROW)
iter->get_scanline = conical_get_scanline_narrow;
else
iter->get_scanline = conical_get_scanline_wide;
}
PIXMAN_EXPORT pixman_image_t *
pixman_image_create_conical_gradient (const pixman_point_fixed_t * center,
pixman_fixed_t angle,
const pixman_gradient_stop_t *stops,
int n_stops)
{
pixman_image_t *image = _pixman_image_allocate ();
conical_gradient_t *conical;
if (!image)
return NULL;
conical = &image->conical;
if (!_pixman_init_gradient (&conical->common, stops, n_stops))
{
free (image);
return NULL;
}
angle = MOD (angle, pixman_int_to_fixed (360));
image->type = CONICAL;
conical->center = *center;
conical->angle = (pixman_fixed_to_double (angle) / 180.0) * M_PI;
return image;
}

4
programs/develop/libraries/pixman/pixman-edge-accessors.c
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#define PIXMAN_FB_ACCESSORS
#include "pixman-edge.c"

182
programs/develop/libraries/pixman/pixman-edge-imp.h
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/*
* Copyright © 2004 Keith Packard
*
* 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 Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL KEITH PACKARD 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.
*/
#ifndef rasterize_span
#endif
static void
RASTERIZE_EDGES (pixman_image_t *image,
pixman_edge_t *l,
pixman_edge_t *r,
pixman_fixed_t t,
pixman_fixed_t b)
{
pixman_fixed_t y = t;
uint32_t *line;
uint32_t *buf = (image)->bits.bits;
int stride = (image)->bits.rowstride;
int width = (image)->bits.width;
line = buf + pixman_fixed_to_int (y) * stride;
for (;;)
{
pixman_fixed_t lx;
pixman_fixed_t rx;
int lxi;
int rxi;
lx = l->x;
rx = r->x;
#if N_BITS == 1
/* For the non-antialiased case, round the coordinates up, in effect
* sampling just slightly to the left of the pixel. This is so that
* when the sample point lies exactly on the line, we round towards
* north-west.
*
* (The AA case does a similar adjustment in RENDER_SAMPLES_X)
*/
lx += X_FRAC_FIRST(1) - pixman_fixed_e;
rx += X_FRAC_FIRST(1) - pixman_fixed_e;
#endif
/* clip X */
if (lx < 0)
lx = 0;
if (pixman_fixed_to_int (rx) >= width)
#if N_BITS == 1
rx = pixman_int_to_fixed (width);
#else
/* Use the last pixel of the scanline, covered 100%.
* We can't use the first pixel following the scanline,
* because accessing it could result in a buffer overrun.
*/
rx = pixman_int_to_fixed (width) - 1;
#endif
/* Skip empty (or backwards) sections */
if (rx > lx)
{
/* Find pixel bounds for span */
lxi = pixman_fixed_to_int (lx);
rxi = pixman_fixed_to_int (rx);
#if N_BITS == 1
{
#define LEFT_MASK(x) \
(((x) & 0x1f) ? \
SCREEN_SHIFT_RIGHT (0xffffffff, (x) & 0x1f) : 0)
#define RIGHT_MASK(x) \
(((32 - (x)) & 0x1f) ? \
SCREEN_SHIFT_LEFT (0xffffffff, (32 - (x)) & 0x1f) : 0)
#define MASK_BITS(x,w,l,n,r) { \
n = (w); \
r = RIGHT_MASK ((x) + n); \
l = LEFT_MASK (x); \
if (l) { \
n -= 32 - ((x) & 0x1f); \
if (n < 0) { \
n = 0; \
l &= r; \
r = 0; \
} \
} \
n >>= 5; \
}
uint32_t *a = line;
uint32_t startmask;
uint32_t endmask;
int nmiddle;
int width = rxi - lxi;
int x = lxi;
a += x >> 5;
x &= 0x1f;
MASK_BITS (x, width, startmask, nmiddle, endmask);
if (startmask) {
WRITE(image, a, READ(image, a) | startmask);
a++;
}
while (nmiddle--)
WRITE(image, a++, 0xffffffff);
if (endmask)
WRITE(image, a, READ(image, a) | endmask);
}
#else
{
DEFINE_ALPHA(line,lxi);
int lxs;
int rxs;
/* Sample coverage for edge pixels */
lxs = RENDER_SAMPLES_X (lx, N_BITS);
rxs = RENDER_SAMPLES_X (rx, N_BITS);
/* Add coverage across row */
if (lxi == rxi)
{
ADD_ALPHA (rxs - lxs);
}
else
{
int xi;
ADD_ALPHA (N_X_FRAC(N_BITS) - lxs);
STEP_ALPHA;
for (xi = lxi + 1; xi < rxi; xi++)
{
ADD_ALPHA (N_X_FRAC(N_BITS));
STEP_ALPHA;
}
ADD_ALPHA (rxs);
}
}
#endif
}
if (y == b)
break;
#if N_BITS > 1
if (pixman_fixed_frac (y) != Y_FRAC_LAST(N_BITS))
{
RENDER_EDGE_STEP_SMALL (l);
RENDER_EDGE_STEP_SMALL (r);
y += STEP_Y_SMALL(N_BITS);
}
else
#endif
{
RENDER_EDGE_STEP_BIG (l);
RENDER_EDGE_STEP_BIG (r);
y += STEP_Y_BIG(N_BITS);
line += stride;
}
}
}
#undef rasterize_span

385
programs/develop/libraries/pixman/pixman-edge.c
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@ -1,385 +0,0 @@
/*
* Copyright © 2004 Keith Packard
*
* 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 Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <string.h>
#include "pixman-private.h"
#include "pixman-accessor.h"
/*
* Step across a small sample grid gap
*/
#define RENDER_EDGE_STEP_SMALL(edge) \
{ \
edge->x += edge->stepx_small; \
edge->e += edge->dx_small; \
if (edge->e > 0) \
{ \
edge->e -= edge->dy; \
edge->x += edge->signdx; \
} \
}
/*
* Step across a large sample grid gap
*/
#define RENDER_EDGE_STEP_BIG(edge) \
{ \
edge->x += edge->stepx_big; \
edge->e += edge->dx_big; \
if (edge->e > 0) \
{ \
edge->e -= edge->dy; \
edge->x += edge->signdx; \
} \
}
#ifdef PIXMAN_FB_ACCESSORS
#define PIXMAN_RASTERIZE_EDGES pixman_rasterize_edges_accessors
#else
#define PIXMAN_RASTERIZE_EDGES pixman_rasterize_edges_no_accessors
#endif
/*
* 4 bit alpha
*/
#define N_BITS 4
#define RASTERIZE_EDGES rasterize_edges_4
#ifndef WORDS_BIGENDIAN
#define SHIFT_4(o) ((o) << 2)
#else
#define SHIFT_4(o) ((1 - (o)) << 2)
#endif
#define GET_4(x, o) (((x) >> SHIFT_4 (o)) & 0xf)
#define PUT_4(x, o, v) \
(((x) & ~(0xf << SHIFT_4 (o))) | (((v) & 0xf) << SHIFT_4 (o)))
#define DEFINE_ALPHA(line, x) \
uint8_t *__ap = (uint8_t *) line + ((x) >> 1); \
int __ao = (x) & 1
#define STEP_ALPHA ((__ap += __ao), (__ao ^= 1))
#define ADD_ALPHA(a) \
{ \
uint8_t __o = READ (image, __ap); \
uint8_t __a = (a) + GET_4 (__o, __ao); \
WRITE (image, __ap, PUT_4 (__o, __ao, __a | (0 - ((__a) >> 4)))); \
}
#include "pixman-edge-imp.h"
#undef ADD_ALPHA
#undef STEP_ALPHA
#undef DEFINE_ALPHA
#undef RASTERIZE_EDGES
#undef N_BITS
/*
* 1 bit alpha
*/
#define N_BITS 1
#define RASTERIZE_EDGES rasterize_edges_1
#include "pixman-edge-imp.h"
#undef RASTERIZE_EDGES
#undef N_BITS
/*
* 8 bit alpha
*/
static force_inline uint8_t
clip255 (int x)
{
if (x > 255)
return 255;
return x;
}
#define ADD_SATURATE_8(buf, val, length) \
do \
{ \
int i__ = (length); \
uint8_t *buf__ = (buf); \
int val__ = (val); \
\
while (i__--) \
{ \
WRITE (image, (buf__), clip255 (READ (image, (buf__)) + (val__))); \
(buf__)++; \
} \
} while (0)
/*
* We want to detect the case where we add the same value to a long
* span of pixels. The triangles on the end are filled in while we
* count how many sub-pixel scanlines contribute to the middle section.
*
* +--------------------------+
* fill_height =| \ /
* +------------------+
* |================|
* fill_start fill_end
*/
static void
rasterize_edges_8 (pixman_image_t *image,
pixman_edge_t * l,
pixman_edge_t * r,
pixman_fixed_t t,
pixman_fixed_t b)
{
pixman_fixed_t y = t;
uint32_t *line;
int fill_start = -1, fill_end = -1;
int fill_size = 0;
uint32_t *buf = (image)->bits.bits;
int stride = (image)->bits.rowstride;
int width = (image)->bits.width;
line = buf + pixman_fixed_to_int (y) * stride;
for (;;)
{
uint8_t *ap = (uint8_t *) line;
pixman_fixed_t lx, rx;
int lxi, rxi;
/* clip X */
lx = l->x;
if (lx < 0)
lx = 0;
rx = r->x;
if (pixman_fixed_to_int (rx) >= width)
{
/* Use the last pixel of the scanline, covered 100%.
* We can't use the first pixel following the scanline,
* because accessing it could result in a buffer overrun.
*/
rx = pixman_int_to_fixed (width) - 1;
}
/* Skip empty (or backwards) sections */
if (rx > lx)
{
int lxs, rxs;
/* Find pixel bounds for span. */
lxi = pixman_fixed_to_int (lx);
rxi = pixman_fixed_to_int (rx);
/* Sample coverage for edge pixels */
lxs = RENDER_SAMPLES_X (lx, 8);
rxs = RENDER_SAMPLES_X (rx, 8);
/* Add coverage across row */
if (lxi == rxi)
{
WRITE (image, ap + lxi,
clip255 (READ (image, ap + lxi) + rxs - lxs));
}
else
{
WRITE (image, ap + lxi,
clip255 (READ (image, ap + lxi) + N_X_FRAC (8) - lxs));
/* Move forward so that lxi/rxi is the pixel span */
lxi++;
/* Don't bother trying to optimize the fill unless
* the span is longer than 4 pixels. */
if (rxi - lxi > 4)
{
if (fill_start < 0)
{
fill_start = lxi;
fill_end = rxi;
fill_size++;
}
else
{
if (lxi >= fill_end || rxi < fill_start)
{
/* We're beyond what we saved, just fill it */
ADD_SATURATE_8 (ap + fill_start,
fill_size * N_X_FRAC (8),
fill_end - fill_start);
fill_start = lxi;
fill_end = rxi;
fill_size = 1;
}
else
{
/* Update fill_start */
if (lxi > fill_start)
{
ADD_SATURATE_8 (ap + fill_start,
fill_size * N_X_FRAC (8),
lxi - fill_start);
fill_start = lxi;
}
else if (lxi < fill_start)
{
ADD_SATURATE_8 (ap + lxi, N_X_FRAC (8),
fill_start - lxi);
}
/* Update fill_end */
if (rxi < fill_end)
{
ADD_SATURATE_8 (ap + rxi,
fill_size * N_X_FRAC (8),
fill_end - rxi);
fill_end = rxi;
}
else if (fill_end < rxi)
{
ADD_SATURATE_8 (ap + fill_end,
N_X_FRAC (8),
rxi - fill_end);
}
fill_size++;
}
}
}
else
{
ADD_SATURATE_8 (ap + lxi, N_X_FRAC (8), rxi - lxi);
}
WRITE (image, ap + rxi, clip255 (READ (image, ap + rxi) + rxs));
}
}
if (y == b)
{
/* We're done, make sure we clean up any remaining fill. */
if (fill_start != fill_end)
{
if (fill_size == N_Y_FRAC (8))
{
MEMSET_WRAPPED (image, ap + fill_start,
0xff, fill_end - fill_start);
}
else
{
ADD_SATURATE_8 (ap + fill_start, fill_size * N_X_FRAC (8),
fill_end - fill_start);
}
}
break;
}
if (pixman_fixed_frac (y) != Y_FRAC_LAST (8))
{
RENDER_EDGE_STEP_SMALL (l);
RENDER_EDGE_STEP_SMALL (r);
y += STEP_Y_SMALL (8);
}
else
{
RENDER_EDGE_STEP_BIG (l);
RENDER_EDGE_STEP_BIG (r);
y += STEP_Y_BIG (8);
if (fill_start != fill_end)
{
if (fill_size == N_Y_FRAC (8))
{
MEMSET_WRAPPED (image, ap + fill_start,
0xff, fill_end - fill_start);
}
else
{
ADD_SATURATE_8 (ap + fill_start, fill_size * N_X_FRAC (8),
fill_end - fill_start);
}
fill_start = fill_end = -1;
fill_size = 0;
}
line += stride;
}
}
}
#ifndef PIXMAN_FB_ACCESSORS
static
#endif
void
PIXMAN_RASTERIZE_EDGES (pixman_image_t *image,
pixman_edge_t * l,
pixman_edge_t * r,
pixman_fixed_t t,
pixman_fixed_t b)
{
switch (PIXMAN_FORMAT_BPP (image->bits.format))
{
case 1:
rasterize_edges_1 (image, l, r, t, b);
break;
case 4:
rasterize_edges_4 (image, l, r, t, b);
break;
case 8:
rasterize_edges_8 (image, l, r, t, b);
break;
default:
break;
}
}
#ifndef PIXMAN_FB_ACCESSORS
PIXMAN_EXPORT void
pixman_rasterize_edges (pixman_image_t *image,
pixman_edge_t * l,
pixman_edge_t * r,
pixman_fixed_t t,
pixman_fixed_t b)
{
return_if_fail (image->type == BITS);
return_if_fail (PIXMAN_FORMAT_TYPE (image->bits.format) == PIXMAN_TYPE_A);
if (image->bits.read_func || image->bits.write_func)
pixman_rasterize_edges_accessors (image, l, r, t, b);
else
pixman_rasterize_edges_no_accessors (image, l, r, t, b);
}
#endif

2358
programs/develop/libraries/pixman/pixman-fast-path.c
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350
programs/develop/libraries/pixman/pixman-filter.c
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@ -1,350 +0,0 @@
/*
* Copyright 2012, Red Hat, Inc.
* Copyright 2012, Soren Sandmann
*
* 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.
*
* Author: Soren Sandmann <soren.sandmann@gmail.com>
*/
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#include <assert.h>
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "pixman-private.h"
typedef double (* kernel_func_t) (double x);
typedef struct
{
pixman_kernel_t kernel;
kernel_func_t func;
double width;
} filter_info_t;
static double
impulse_kernel (double x)
{
return (x == 0.0)? 1.0 : 0.0;
}
static double
box_kernel (double x)
{
return 1;
}
static double
linear_kernel (double x)
{
return 1 - fabs (x);
}
static double
gaussian_kernel (double x)
{
#define SQRT2 (1.4142135623730950488016887242096980785696718753769480)
#define SIGMA (SQRT2 / 2.0)
return exp (- x * x / (2 * SIGMA * SIGMA)) / (SIGMA * sqrt (2.0 * M_PI));
}
static double
sinc (double x)
{
if (x == 0.0)
return 1.0;
else
return sin (M_PI * x) / (M_PI * x);
}
static double
lanczos (double x, int n)
{
return sinc (x) * sinc (x * (1.0 / n));
}
static double
lanczos2_kernel (double x)
{
return lanczos (x, 2);
}
static double
lanczos3_kernel (double x)
{
return lanczos (x, 3);
}
static double
nice_kernel (double x)
{
return lanczos3_kernel (x * 0.75);
}
static double
general_cubic (double x, double B, double C)
{
double ax = fabs(x);
if (ax < 1)
{
return ((12 - 9 * B - 6 * C) * ax * ax * ax +
(-18 + 12 * B + 6 * C) * ax * ax + (6 - 2 * B)) / 6;
}
else if (ax >= 1 && ax < 2)
{
return ((-B - 6 * C) * ax * ax * ax +
(6 * B + 30 * C) * ax * ax + (-12 * B - 48 * C) *
ax + (8 * B + 24 * C)) / 6;
}
else
{
return 0;
}
}
static double
cubic_kernel (double x)
{
/* This is the Mitchell-Netravali filter.
*
* (0.0, 0.5) would give us the Catmull-Rom spline,
* but that one seems to be indistinguishable from Lanczos2.
*/
return general_cubic (x, 1/3.0, 1/3.0);
}
static const filter_info_t filters[] =
{
{ PIXMAN_KERNEL_IMPULSE, impulse_kernel, 0.0 },
{ PIXMAN_KERNEL_BOX, box_kernel, 1.0 },
{ PIXMAN_KERNEL_LINEAR, linear_kernel, 2.0 },
{ PIXMAN_KERNEL_CUBIC, cubic_kernel, 4.0 },
{ PIXMAN_KERNEL_GAUSSIAN, gaussian_kernel, 6 * SIGMA },
{ PIXMAN_KERNEL_LANCZOS2, lanczos2_kernel, 4.0 },
{ PIXMAN_KERNEL_LANCZOS3, lanczos3_kernel, 6.0 },
{ PIXMAN_KERNEL_LANCZOS3_STRETCHED, nice_kernel, 8.0 },
};
/* This function scales @kernel2 by @scale, then
* aligns @x1 in @kernel1 with @x2 in @kernel2 and
* and integrates the product of the kernels across @width.
*
* This function assumes that the intervals are within
* the kernels in question. E.g., the caller must not
* try to integrate a linear kernel ouside of [-1:1]
*/
static double
integral (pixman_kernel_t kernel1, double x1,
pixman_kernel_t kernel2, double scale, double x2,
double width)
{
/* If the integration interval crosses zero, break it into
* two separate integrals. This ensures that filters such
* as LINEAR that are not differentiable at 0 will still
* integrate properly.
*/
if (x1 < 0 && x1 + width > 0)
{
return
integral (kernel1, x1, kernel2, scale, x2, - x1) +
integral (kernel1, 0, kernel2, scale, x2 - x1, width + x1);
}
else if (x2 < 0 && x2 + width > 0)
{
return
integral (kernel1, x1, kernel2, scale, x2, - x2) +
integral (kernel1, x1 - x2, kernel2, scale, 0, width + x2);
}
else if (kernel1 == PIXMAN_KERNEL_IMPULSE)
{
assert (width == 0.0);
return filters[kernel2].func (x2 * scale);
}
else if (kernel2 == PIXMAN_KERNEL_IMPULSE)
{
assert (width == 0.0);
return filters[kernel1].func (x1);
}
else
{
/* Integration via Simpson's rule */
#define N_SEGMENTS 128
#define SAMPLE(a1, a2) \
(filters[kernel1].func ((a1)) * filters[kernel2].func ((a2) * scale))
double s = 0.0;
double h = width / (double)N_SEGMENTS;
int i;
s = SAMPLE (x1, x2);
for (i = 1; i < N_SEGMENTS; i += 2)
{
double a1 = x1 + h * i;
double a2 = x2 + h * i;
s += 2 * SAMPLE (a1, a2);
if (i >= 2 && i < N_SEGMENTS - 1)
s += 4 * SAMPLE (a1, a2);
}
s += SAMPLE (x1 + width, x2 + width);
return h * s * (1.0 / 3.0);
}
}
static pixman_fixed_t *
create_1d_filter (int *width,
pixman_kernel_t reconstruct,
pixman_kernel_t sample,
double scale,
int n_phases)
{
pixman_fixed_t *params, *p;
double step;
double size;
int i;
size = scale * filters[sample].width + filters[reconstruct].width;
*width = ceil (size);
p = params = malloc (*width * n_phases * sizeof (pixman_fixed_t));
if (!params)
return NULL;
step = 1.0 / n_phases;
for (i = 0; i < n_phases; ++i)
{
double frac = step / 2.0 + i * step;
pixman_fixed_t new_total;
int x, x1, x2;
double total;
/* Sample convolution of reconstruction and sampling
* filter. See rounding.txt regarding the rounding
* and sample positions.
*/
x1 = ceil (frac - *width / 2.0 - 0.5);
x2 = x1 + *width;
total = 0;
for (x = x1; x < x2; ++x)
{
double pos = x + 0.5 - frac;
double rlow = - filters[reconstruct].width / 2.0;
double rhigh = rlow + filters[reconstruct].width;
double slow = pos - scale * filters[sample].width / 2.0;
double shigh = slow + scale * filters[sample].width;
double c = 0.0;
double ilow, ihigh;
if (rhigh >= slow && rlow <= shigh)
{
ilow = MAX (slow, rlow);
ihigh = MIN (shigh, rhigh);
c = integral (reconstruct, ilow,
sample, 1.0 / scale, ilow - pos,
ihigh - ilow);
}
total += c;
*p++ = (pixman_fixed_t)(c * 65535.0 + 0.5);
}
/* Normalize */
p -= *width;
total = 1 / total;
new_total = 0;
for (x = x1; x < x2; ++x)
{
pixman_fixed_t t = (*p) * total + 0.5;
new_total += t;
*p++ = t;
}
if (new_total != pixman_fixed_1)
*(p - *width / 2) += (pixman_fixed_1 - new_total);
}
return params;
}
/* Create the parameter list for a SEPARABLE_CONVOLUTION filter
* with the given kernels and scale parameters
*/
PIXMAN_EXPORT pixman_fixed_t *
pixman_filter_create_separable_convolution (int *n_values,
pixman_fixed_t scale_x,
pixman_fixed_t scale_y,
pixman_kernel_t reconstruct_x,
pixman_kernel_t reconstruct_y,
pixman_kernel_t sample_x,
pixman_kernel_t sample_y,
int subsample_bits_x,
int subsample_bits_y)
{
double sx = fabs (pixman_fixed_to_double (scale_x));
double sy = fabs (pixman_fixed_to_double (scale_y));
pixman_fixed_t *horz = NULL, *vert = NULL, *params = NULL;
int subsample_x, subsample_y;
int width, height;
subsample_x = (1 << subsample_bits_x);
subsample_y = (1 << subsample_bits_y);
horz = create_1d_filter (&width, reconstruct_x, sample_x, sx, subsample_x);
vert = create_1d_filter (&height, reconstruct_y, sample_y, sy, subsample_y);
if (!horz || !vert)
goto out;
*n_values = 4 + width * subsample_x + height * subsample_y;
params = malloc (*n_values * sizeof (pixman_fixed_t));
if (!params)
goto out;
params[0] = pixman_int_to_fixed (width);
params[1] = pixman_int_to_fixed (height);
params[2] = pixman_int_to_fixed (subsample_bits_x);
params[3] = pixman_int_to_fixed (subsample_bits_y);
memcpy (params + 4, horz,
width * subsample_x * sizeof (pixman_fixed_t));
memcpy (params + 4 + width * subsample_x, vert,
height * subsample_y * sizeof (pixman_fixed_t));
out:
free (horz);
free (vert);
return params;
}

227
programs/develop/libraries/pixman/pixman-general.c
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@ -1,227 +0,0 @@
/*
* Copyright © 2009 Red Hat, Inc.
* Copyright © 2000 SuSE, Inc.
* Copyright © 2007 Red Hat, Inc.
* Copyright © 2000 Keith Packard, member of The XFree86 Project, Inc.
* 2005 Lars Knoll & Zack Rusin, Trolltech
* 2008 Aaron Plattner, NVIDIA Corporation
*
* 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 Red Hat not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. Red Hat makes no representations about the
* suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS 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 <stdlib.h>
#include <string.h>
#include <math.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "pixman-private.h"
static pixman_bool_t
general_src_iter_init (pixman_implementation_t *imp, pixman_iter_t *iter)
{
pixman_image_t *image = iter->image;
if (image->type == LINEAR)
_pixman_linear_gradient_iter_init (image, iter);
else if (image->type == RADIAL)
_pixman_radial_gradient_iter_init (image, iter);
else if (image->type == CONICAL)
_pixman_conical_gradient_iter_init (image, iter);
else if (image->type == BITS)
_pixman_bits_image_src_iter_init (image, iter);
else if (image->type == SOLID)
_pixman_log_error (FUNC, "Solid image not handled by noop");
else
_pixman_log_error (FUNC, "Pixman bug: unknown image type\n");
return TRUE;
}
static pixman_bool_t
general_dest_iter_init (pixman_implementation_t *imp, pixman_iter_t *iter)
{
if (iter->image->type == BITS)
{
_pixman_bits_image_dest_iter_init (iter->image, iter);
return TRUE;
}
else
{
_pixman_log_error (FUNC, "Trying to write to a non-writable image");
return FALSE;
}
}
typedef struct op_info_t op_info_t;
struct op_info_t
{
uint8_t src, dst;
};
#define ITER_IGNORE_BOTH \
(ITER_IGNORE_ALPHA | ITER_IGNORE_RGB | ITER_LOCALIZED_ALPHA)
static const op_info_t op_flags[PIXMAN_N_OPERATORS] =
{
/* Src Dst */
{ ITER_IGNORE_BOTH, ITER_IGNORE_BOTH }, /* CLEAR */
{ ITER_LOCALIZED_ALPHA, ITER_IGNORE_BOTH }, /* SRC */
{ ITER_IGNORE_BOTH, ITER_LOCALIZED_ALPHA }, /* DST */
{ 0, ITER_LOCALIZED_ALPHA }, /* OVER */
{ ITER_LOCALIZED_ALPHA, 0 }, /* OVER_REVERSE */
{ ITER_LOCALIZED_ALPHA, ITER_IGNORE_RGB }, /* IN */
{ ITER_IGNORE_RGB, ITER_LOCALIZED_ALPHA }, /* IN_REVERSE */
{ ITER_LOCALIZED_ALPHA, ITER_IGNORE_RGB }, /* OUT */
{ ITER_IGNORE_RGB, ITER_LOCALIZED_ALPHA }, /* OUT_REVERSE */
{ 0, 0 }, /* ATOP */
{ 0, 0 }, /* ATOP_REVERSE */
{ 0, 0 }, /* XOR */
{ ITER_LOCALIZED_ALPHA, ITER_LOCALIZED_ALPHA }, /* ADD */
{ 0, 0 }, /* SATURATE */
};
#define SCANLINE_BUFFER_LENGTH 8192
static void
general_composite_rect (pixman_implementation_t *imp,
pixman_composite_info_t *info)
{
PIXMAN_COMPOSITE_ARGS (info);
uint64_t stack_scanline_buffer[(SCANLINE_BUFFER_LENGTH * 3 + 7) / 8];
uint8_t *scanline_buffer = (uint8_t *) stack_scanline_buffer;
uint8_t *src_buffer, *mask_buffer, *dest_buffer;
pixman_iter_t src_iter, mask_iter, dest_iter;
pixman_combine_32_func_t compose;
pixman_bool_t component_alpha;
iter_flags_t narrow, src_iter_flags;
int Bpp;
int i;
if ((src_image->common.flags & FAST_PATH_NARROW_FORMAT) &&
(!mask_image || mask_image->common.flags & FAST_PATH_NARROW_FORMAT) &&
(dest_image->common.flags & FAST_PATH_NARROW_FORMAT))
{
narrow = ITER_NARROW;
Bpp = 4;
}
else
{
narrow = 0;
Bpp = 16;
}
if (width * Bpp > SCANLINE_BUFFER_LENGTH)
{
scanline_buffer = pixman_malloc_abc (width, 3, Bpp);
if (!scanline_buffer)
return;
}
src_buffer = scanline_buffer;
mask_buffer = src_buffer + width * Bpp;
dest_buffer = mask_buffer + width * Bpp;
if (!narrow)
{
/* To make sure there aren't any NANs in the buffers */
memset (src_buffer, 0, width * Bpp);
memset (mask_buffer, 0, width * Bpp);
memset (dest_buffer, 0, width * Bpp);
}
/* src iter */
src_iter_flags = narrow | op_flags[op].src;
_pixman_implementation_src_iter_init (imp->toplevel, &src_iter, src_image,
src_x, src_y, width, height,
src_buffer, src_iter_flags, info->src_flags);
/* mask iter */
if ((src_iter_flags & (ITER_IGNORE_ALPHA | ITER_IGNORE_RGB)) ==
(ITER_IGNORE_ALPHA | ITER_IGNORE_RGB))
{
/* If it doesn't matter what the source is, then it doesn't matter
* what the mask is
*/
mask_image = NULL;
}
component_alpha =
mask_image &&
mask_image->common.type == BITS &&
mask_image->common.component_alpha &&
PIXMAN_FORMAT_RGB (mask_image->bits.format);
_pixman_implementation_src_iter_init (
imp->toplevel, &mask_iter, mask_image, mask_x, mask_y, width, height,
mask_buffer, narrow | (component_alpha? 0 : ITER_IGNORE_RGB), info->mask_flags);
/* dest iter */
_pixman_implementation_dest_iter_init (
imp->toplevel, &dest_iter, dest_image, dest_x, dest_y, width, height,
dest_buffer, narrow | op_flags[op].dst, info->dest_flags);
compose = _pixman_implementation_lookup_combiner (
imp->toplevel, op, component_alpha, narrow);
for (i = 0; i < height; ++i)
{
uint32_t *s, *m, *d;
m = mask_iter.get_scanline (&mask_iter, NULL);
s = src_iter.get_scanline (&src_iter, m);
d = dest_iter.get_scanline (&dest_iter, NULL);
compose (imp->toplevel, op, d, s, m, width);
dest_iter.write_back (&dest_iter);
}
if (scanline_buffer != (uint8_t *) stack_scanline_buffer)
free (scanline_buffer);
}
static const pixman_fast_path_t general_fast_path[] =
{
{ PIXMAN_OP_any, PIXMAN_any, 0, PIXMAN_any, 0, PIXMAN_any, 0, general_composite_rect },
{ PIXMAN_OP_NONE }
};
pixman_implementation_t *
_pixman_implementation_create_general (void)
{
pixman_implementation_t *imp = _pixman_implementation_create (NULL, general_fast_path);
_pixman_setup_combiner_functions_32 (imp);
_pixman_setup_combiner_functions_float (imp);
imp->src_iter_init = general_src_iter_init;
imp->dest_iter_init = general_dest_iter_init;
return imp;
}

670
programs/develop/libraries/pixman/pixman-glyph.c
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@ -1,670 +0,0 @@
/*
* Copyright 2010, 2012, Soren Sandmann <sandmann@cs.au.dk>
* Copyright 2010, 2011, 2012, 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.
*
* Author: Soren Sandmann <sandmann@cs.au.dk>
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "pixman-private.h"
#include <stdlib.h>
typedef struct glyph_metrics_t glyph_metrics_t;
typedef struct glyph_t glyph_t;
#define TOMBSTONE ((glyph_t *)0x1)
/* XXX: These numbers are arbitrary---we've never done any measurements.
*/
#define N_GLYPHS_HIGH_WATER (16384)
#define N_GLYPHS_LOW_WATER (8192)
#define HASH_SIZE (2 * N_GLYPHS_HIGH_WATER)
#define HASH_MASK (HASH_SIZE - 1)
struct glyph_t
{
void * font_key;
void * glyph_key;
int origin_x;
int origin_y;
pixman_image_t * image;
pixman_link_t mru_link;
};
struct pixman_glyph_cache_t
{
int n_glyphs;
int n_tombstones;
int freeze_count;
pixman_list_t mru;
glyph_t * glyphs[HASH_SIZE];
};
static void
free_glyph (glyph_t *glyph)
{
pixman_list_unlink (&glyph->mru_link);
pixman_image_unref (glyph->image);
free (glyph);
}
static unsigned int
hash (const void *font_key, const void *glyph_key)
{
size_t key = (size_t)font_key + (size_t)glyph_key;
/* This hash function is based on one found on Thomas Wang's
* web page at
*
* http://www.concentric.net/~Ttwang/tech/inthash.htm
*
*/
key = (key << 15) - key - 1;
key = key ^ (key >> 12);
key = key + (key << 2);
key = key ^ (key >> 4);
key = key + (key << 3) + (key << 11);
key = key ^ (key >> 16);
return key;
}
static glyph_t *
lookup_glyph (pixman_glyph_cache_t *cache,
void *font_key,
void *glyph_key)
{
unsigned idx;
glyph_t *g;
idx = hash (font_key, glyph_key);
while ((g = cache->glyphs[idx++ & HASH_MASK]))
{
if (g != TOMBSTONE &&
g->font_key == font_key &&
g->glyph_key == glyph_key)
{
return g;
}
}
return NULL;
}
static void
insert_glyph (pixman_glyph_cache_t *cache,
glyph_t *glyph)
{
unsigned idx;
glyph_t **loc;
idx = hash (glyph->font_key, glyph->glyph_key);
/* Note: we assume that there is room in the table. If there isn't,
* this will be an infinite loop.
*/
do
{
loc = &cache->glyphs[idx++ & HASH_MASK];
} while (*loc && *loc != TOMBSTONE);
if (*loc == TOMBSTONE)
cache->n_tombstones--;
cache->n_glyphs++;
*loc = glyph;
}
static void
remove_glyph (pixman_glyph_cache_t *cache,
glyph_t *glyph)
{
unsigned idx;
idx = hash (glyph->font_key, glyph->glyph_key);
while (cache->glyphs[idx & HASH_MASK] != glyph)
idx++;
cache->glyphs[idx & HASH_MASK] = TOMBSTONE;
cache->n_tombstones++;
cache->n_glyphs--;
/* Eliminate tombstones if possible */
if (cache->glyphs[(idx + 1) & HASH_MASK] == NULL)
{
while (cache->glyphs[idx & HASH_MASK] == TOMBSTONE)
{
cache->glyphs[idx & HASH_MASK] = NULL;
cache->n_tombstones--;
idx--;
}
}
}
static void
clear_table (pixman_glyph_cache_t *cache)
{
int i;
for (i = 0; i < HASH_SIZE; ++i)
{
glyph_t *glyph = cache->glyphs[i];
if (glyph && glyph != TOMBSTONE)
free_glyph (glyph);
cache->glyphs[i] = NULL;
}
cache->n_glyphs = 0;
cache->n_tombstones = 0;
}
PIXMAN_EXPORT pixman_glyph_cache_t *
pixman_glyph_cache_create (void)
{
pixman_glyph_cache_t *cache;
if (!(cache = malloc (sizeof *cache)))
return NULL;
memset (cache->glyphs, 0, sizeof (cache->glyphs));
cache->n_glyphs = 0;
cache->n_tombstones = 0;
cache->freeze_count = 0;
pixman_list_init (&cache->mru);
return cache;
}
PIXMAN_EXPORT void
pixman_glyph_cache_destroy (pixman_glyph_cache_t *cache)
{
return_if_fail (cache->freeze_count == 0);
clear_table (cache);
free (cache);
}
PIXMAN_EXPORT void
pixman_glyph_cache_freeze (pixman_glyph_cache_t *cache)
{
cache->freeze_count++;
}
PIXMAN_EXPORT void
pixman_glyph_cache_thaw (pixman_glyph_cache_t *cache)
{
if (--cache->freeze_count == 0 &&
cache->n_glyphs + cache->n_tombstones > N_GLYPHS_HIGH_WATER)
{
if (cache->n_tombstones > N_GLYPHS_HIGH_WATER)
{
/* More than half the entries are
* tombstones. Just dump the whole table.
*/
clear_table (cache);
}
while (cache->n_glyphs > N_GLYPHS_LOW_WATER)
{
glyph_t *glyph = CONTAINER_OF (glyph_t, mru_link, cache->mru.tail);
remove_glyph (cache, glyph);
free_glyph (glyph);
}
}
}
PIXMAN_EXPORT const void *
pixman_glyph_cache_lookup (pixman_glyph_cache_t *cache,
void *font_key,
void *glyph_key)
{
return lookup_glyph (cache, font_key, glyph_key);
}
PIXMAN_EXPORT const void *
pixman_glyph_cache_insert (pixman_glyph_cache_t *cache,
void *font_key,
void *glyph_key,
int origin_x,
int origin_y,
pixman_image_t *image)
{
glyph_t *glyph;
int32_t width, height;
return_val_if_fail (cache->freeze_count > 0, NULL);
return_val_if_fail (image->type == BITS, NULL);
width = image->bits.width;
height = image->bits.height;
if (cache->n_glyphs >= HASH_SIZE)
return NULL;
if (!(glyph = malloc (sizeof *glyph)))
return NULL;
glyph->font_key = font_key;
glyph->glyph_key = glyph_key;
glyph->origin_x = origin_x;
glyph->origin_y = origin_y;
if (!(glyph->image = pixman_image_create_bits (
image->bits.format, width, height, NULL, -1)))
{
free (glyph);
return NULL;
}
pixman_image_composite32 (PIXMAN_OP_SRC,
image, NULL, glyph->image, 0, 0, 0, 0, 0, 0,
width, height);
if (PIXMAN_FORMAT_A (glyph->image->bits.format) != 0 &&
PIXMAN_FORMAT_RGB (glyph->image->bits.format) != 0)
{
pixman_image_set_component_alpha (glyph->image, TRUE);
}
pixman_list_prepend (&cache->mru, &glyph->mru_link);
_pixman_image_validate (glyph->image);
insert_glyph (cache, glyph);
return glyph;
}
PIXMAN_EXPORT void
pixman_glyph_cache_remove (pixman_glyph_cache_t *cache,
void *font_key,
void *glyph_key)
{
glyph_t *glyph;
if ((glyph = lookup_glyph (cache, font_key, glyph_key)))
{
remove_glyph (cache, glyph);
free_glyph (glyph);
}
}
PIXMAN_EXPORT void
pixman_glyph_get_extents (pixman_glyph_cache_t *cache,
int n_glyphs,
pixman_glyph_t *glyphs,
pixman_box32_t *extents)
{
int i;
extents->x1 = extents->y1 = INT32_MAX;
extents->x2 = extents->y2 = INT32_MIN;
for (i = 0; i < n_glyphs; ++i)
{
glyph_t *glyph = (glyph_t *)glyphs[i].glyph;
int x1, y1, x2, y2;
x1 = glyphs[i].x - glyph->origin_x;
y1 = glyphs[i].y - glyph->origin_y;
x2 = glyphs[i].x - glyph->origin_x + glyph->image->bits.width;
y2 = glyphs[i].y - glyph->origin_y + glyph->image->bits.height;
if (x1 < extents->x1)
extents->x1 = x1;
if (y1 < extents->y1)
extents->y1 = y1;
if (x2 > extents->x2)
extents->x2 = x2;
if (y2 > extents->y2)
extents->y2 = y2;
}
}
/* This function returns a format that is suitable for use as a mask for the
* set of glyphs in question.
*/
PIXMAN_EXPORT pixman_format_code_t
pixman_glyph_get_mask_format (pixman_glyph_cache_t *cache,
int n_glyphs,
const pixman_glyph_t *glyphs)
{
pixman_format_code_t format = PIXMAN_a1;
int i;
for (i = 0; i < n_glyphs; ++i)
{
const glyph_t *glyph = glyphs[i].glyph;
pixman_format_code_t glyph_format = glyph->image->bits.format;
if (PIXMAN_FORMAT_TYPE (glyph_format) == PIXMAN_TYPE_A)
{
if (PIXMAN_FORMAT_A (glyph_format) > PIXMAN_FORMAT_A (format))
format = glyph_format;
}
else
{
return PIXMAN_a8r8g8b8;
}
}
return format;
}
static pixman_bool_t
box32_intersect (pixman_box32_t *dest,
const pixman_box32_t *box1,
const pixman_box32_t *box2)
{
dest->x1 = MAX (box1->x1, box2->x1);
dest->y1 = MAX (box1->y1, box2->y1);
dest->x2 = MIN (box1->x2, box2->x2);
dest->y2 = MIN (box1->y2, box2->y2);
return dest->x2 > dest->x1 && dest->y2 > dest->y1;
}
PIXMAN_EXPORT void
pixman_composite_glyphs_no_mask (pixman_op_t op,
pixman_image_t *src,
pixman_image_t *dest,
int32_t src_x,
int32_t src_y,
int32_t dest_x,
int32_t dest_y,
pixman_glyph_cache_t *cache,
int n_glyphs,
const pixman_glyph_t *glyphs)
{
pixman_region32_t region;
pixman_format_code_t glyph_format = PIXMAN_null;
uint32_t glyph_flags = 0;
pixman_format_code_t dest_format;
uint32_t dest_flags;
pixman_composite_func_t func = NULL;
pixman_implementation_t *implementation = NULL;
pixman_composite_info_t info;
int i;
_pixman_image_validate (src);
_pixman_image_validate (dest);
dest_format = dest->common.extended_format_code;
dest_flags = dest->common.flags;
pixman_region32_init (&region);
if (!_pixman_compute_composite_region32 (
&region,
src, NULL, dest,
src_x - dest_x, src_y - dest_y, 0, 0, 0, 0,
dest->bits.width, dest->bits.height))
{
goto out;
}
info.op = op;
info.src_image = src;
info.dest_image = dest;
info.src_flags = src->common.flags;
info.dest_flags = dest->common.flags;
for (i = 0; i < n_glyphs; ++i)
{
glyph_t *glyph = (glyph_t *)glyphs[i].glyph;
pixman_image_t *glyph_img = glyph->image;
pixman_box32_t glyph_box;
pixman_box32_t *pbox;
uint32_t extra = FAST_PATH_SAMPLES_COVER_CLIP_NEAREST;
pixman_box32_t composite_box;
int n;
glyph_box.x1 = dest_x + glyphs[i].x - glyph->origin_x;
glyph_box.y1 = dest_y + glyphs[i].y - glyph->origin_y;
glyph_box.x2 = glyph_box.x1 + glyph->image->bits.width;
glyph_box.y2 = glyph_box.y1 + glyph->image->bits.height;
pbox = pixman_region32_rectangles (&region, &n);
info.mask_image = glyph_img;
while (n--)
{
if (box32_intersect (&composite_box, pbox, &glyph_box))
{
if (glyph_img->common.extended_format_code != glyph_format ||
glyph_img->common.flags != glyph_flags)
{
glyph_format = glyph_img->common.extended_format_code;
glyph_flags = glyph_img->common.flags;
_pixman_implementation_lookup_composite (
get_implementation(), op,
src->common.extended_format_code, src->common.flags,
glyph_format, glyph_flags | extra,
dest_format, dest_flags,
&implementation, &func);
}
info.src_x = src_x + composite_box.x1 - dest_x;
info.src_y = src_y + composite_box.y1 - dest_y;
info.mask_x = composite_box.x1 - (dest_x + glyphs[i].x - glyph->origin_x);
info.mask_y = composite_box.y1 - (dest_y + glyphs[i].y - glyph->origin_y);
info.dest_x = composite_box.x1;
info.dest_y = composite_box.y1;
info.width = composite_box.x2 - composite_box.x1;
info.height = composite_box.y2 - composite_box.y1;
info.mask_flags = glyph_flags;
func (implementation, &info);
}
pbox++;
}
pixman_list_move_to_front (&cache->mru, &glyph->mru_link);
}
out:
pixman_region32_fini (&region);
}
static void
add_glyphs (pixman_glyph_cache_t *cache,
pixman_image_t *dest,
int off_x, int off_y,
int n_glyphs, const pixman_glyph_t *glyphs)
{
pixman_format_code_t glyph_format = PIXMAN_null;
uint32_t glyph_flags = 0;
pixman_composite_func_t func = NULL;
pixman_implementation_t *implementation = NULL;
pixman_format_code_t dest_format;
uint32_t dest_flags;
pixman_box32_t dest_box;
pixman_composite_info_t info;
pixman_image_t *white_img = NULL;
pixman_bool_t white_src = FALSE;
int i;
_pixman_image_validate (dest);
dest_format = dest->common.extended_format_code;
dest_flags = dest->common.flags;
info.op = PIXMAN_OP_ADD;
info.dest_image = dest;
info.src_x = 0;
info.src_y = 0;
info.dest_flags = dest_flags;
dest_box.x1 = 0;
dest_box.y1 = 0;
dest_box.x2 = dest->bits.width;
dest_box.y2 = dest->bits.height;
for (i = 0; i < n_glyphs; ++i)
{
glyph_t *glyph = (glyph_t *)glyphs[i].glyph;
pixman_image_t *glyph_img = glyph->image;
pixman_box32_t glyph_box;
pixman_box32_t composite_box;
if (glyph_img->common.extended_format_code != glyph_format ||
glyph_img->common.flags != glyph_flags)
{
pixman_format_code_t src_format, mask_format;
glyph_format = glyph_img->common.extended_format_code;
glyph_flags = glyph_img->common.flags;
if (glyph_format == dest->bits.format)
{
src_format = glyph_format;
mask_format = PIXMAN_null;
info.src_flags = glyph_flags | FAST_PATH_SAMPLES_COVER_CLIP_NEAREST;
info.mask_flags = FAST_PATH_IS_OPAQUE;
info.mask_image = NULL;
white_src = FALSE;
}
else
{
if (!white_img)
{
static const pixman_color_t white = { 0xffff, 0xffff, 0xffff, 0xffff };
if (!(white_img = pixman_image_create_solid_fill (&white)))
goto out;
_pixman_image_validate (white_img);
}
src_format = PIXMAN_solid;
mask_format = glyph_format;
info.src_flags = white_img->common.flags;
info.mask_flags = glyph_flags | FAST_PATH_SAMPLES_COVER_CLIP_NEAREST;
info.src_image = white_img;
white_src = TRUE;
}
_pixman_implementation_lookup_composite (
get_implementation(), PIXMAN_OP_ADD,
src_format, info.src_flags,
mask_format, info.mask_flags,
dest_format, dest_flags,
&implementation, &func);
}
glyph_box.x1 = glyphs[i].x - glyph->origin_x + off_x;
glyph_box.y1 = glyphs[i].y - glyph->origin_y + off_y;
glyph_box.x2 = glyph_box.x1 + glyph->image->bits.width;
glyph_box.y2 = glyph_box.y1 + glyph->image->bits.height;
if (box32_intersect (&composite_box, &glyph_box, &dest_box))
{
int src_x = composite_box.x1 - glyph_box.x1;
int src_y = composite_box.y1 - glyph_box.y1;
if (white_src)
info.mask_image = glyph_img;
else
info.src_image = glyph_img;
info.mask_x = info.src_x = src_x;
info.mask_y = info.src_y = src_y;
info.dest_x = composite_box.x1;
info.dest_y = composite_box.y1;
info.width = composite_box.x2 - composite_box.x1;
info.height = composite_box.y2 - composite_box.y1;
func (implementation, &info);
pixman_list_move_to_front (&cache->mru, &glyph->mru_link);
}
}
out:
if (white_img)
pixman_image_unref (white_img);
}
/* Conceptually, for each glyph, (white IN glyph) is PIXMAN_OP_ADDed to an
* infinitely big mask image at the position such that the glyph origin point
* is positioned at the (glyphs[i].x, glyphs[i].y) point.
*
* Then (mask_x, mask_y) in the infinite mask and (src_x, src_y) in the source
* image are both aligned with (dest_x, dest_y) in the destination image. Then
* these three images are composited within the
*
* (dest_x, dest_y, dst_x + width, dst_y + height)
*
* rectangle.
*
* TODO:
* - Trim the mask to the destination clip/image?
* - Trim composite region based on sources, when the op ignores 0s.
*/
PIXMAN_EXPORT void
pixman_composite_glyphs (pixman_op_t op,
pixman_image_t *src,
pixman_image_t *dest,
pixman_format_code_t mask_format,
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_glyph_cache_t *cache,
int n_glyphs,
const pixman_glyph_t *glyphs)
{
pixman_image_t *mask;
if (!(mask = pixman_image_create_bits (mask_format, width, height, NULL, -1)))
return;
if (PIXMAN_FORMAT_A (mask_format) != 0 &&
PIXMAN_FORMAT_RGB (mask_format) != 0)
{
pixman_image_set_component_alpha (mask, TRUE);
}
add_glyphs (cache, mask, - mask_x, - mask_y, n_glyphs, glyphs);
pixman_image_composite32 (op, src, mask, dest,
src_x, src_y,
0, 0,
dest_x, dest_y,
width, height);
pixman_image_unref (mask);
}

202
programs/develop/libraries/pixman/pixman-gradient-walker.c
View File

@ -1,202 +0,0 @@
/*
*
* Copyright © 2000 Keith Packard, member of The XFree86 Project, Inc.
* 2005 Lars Knoll & Zack Rusin, Trolltech
*
* 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 Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "pixman-private.h"
void
_pixman_gradient_walker_init (pixman_gradient_walker_t *walker,
gradient_t * gradient,
pixman_repeat_t repeat)
{
walker->num_stops = gradient->n_stops;
walker->stops = gradient->stops;
walker->left_x = 0;
walker->right_x = 0x10000;
walker->a_s = 0.0f;
walker->a_b = 0.0f;
walker->r_s = 0.0f;
walker->r_b = 0.0f;
walker->g_s = 0.0f;
walker->g_b = 0.0f;
walker->b_s = 0.0f;
walker->b_b = 0.0f;
walker->repeat = repeat;
walker->need_reset = TRUE;
}
static void
gradient_walker_reset (pixman_gradient_walker_t *walker,
pixman_fixed_48_16_t pos)
{
int32_t x, left_x, right_x;
pixman_color_t *left_c, *right_c;
int n, count = walker->num_stops;
pixman_gradient_stop_t *stops = walker->stops;
float la, lr, lg, lb;
float ra, rr, rg, rb;
float lx, rx;
if (walker->repeat == PIXMAN_REPEAT_NORMAL)
{
x = (int32_t)pos & 0xffff;
}
else if (walker->repeat == PIXMAN_REPEAT_REFLECT)
{
x = (int32_t)pos & 0xffff;
if ((int32_t)pos & 0x10000)
x = 0x10000 - x;
}
else
{
x = pos;
}
for (n = 0; n < count; n++)
{
if (x < stops[n].x)
break;
}
left_x = stops[n - 1].x;
left_c = &stops[n - 1].color;
right_x = stops[n].x;
right_c = &stops[n].color;
if (walker->repeat == PIXMAN_REPEAT_NORMAL)
{
left_x += (pos - x);
right_x += (pos - x);
}
else if (walker->repeat == PIXMAN_REPEAT_REFLECT)
{
if ((int32_t)pos & 0x10000)
{
pixman_color_t *tmp_c;
int32_t tmp_x;
tmp_x = 0x10000 - right_x;
right_x = 0x10000 - left_x;
left_x = tmp_x;
tmp_c = right_c;
right_c = left_c;
left_c = tmp_c;
x = 0x10000 - x;
}
left_x += (pos - x);
right_x += (pos - x);
}
else if (walker->repeat == PIXMAN_REPEAT_NONE)
{
if (n == 0)
right_c = left_c;
else if (n == count)
left_c = right_c;
}
/* The alpha channel is scaled to be in the [0, 255] interval,
* and the red/green/blue channels are scaled to be in [0, 1].
* This ensures that after premultiplication all channels will
* be in the [0, 255] interval.
*/
la = (left_c->alpha * (1.0f/257.0f));
lr = (left_c->red * (1.0f/257.0f));
lg = (left_c->green * (1.0f/257.0f));
lb = (left_c->blue * (1.0f/257.0f));
ra = (right_c->alpha * (1.0f/257.0f));
rr = (right_c->red * (1.0f/257.0f));
rg = (right_c->green * (1.0f/257.0f));
rb = (right_c->blue * (1.0f/257.0f));
lx = left_x * (1.0f/65536.0f);
rx = right_x * (1.0f/65536.0f);
if (FLOAT_IS_ZERO (rx - lx) || left_x == INT32_MIN || right_x == INT32_MAX)
{
walker->a_s = walker->r_s = walker->g_s = walker->b_s = 0.0f;
walker->a_b = (la + ra) / 2.0f;
walker->r_b = (lr + rr) / 510.0f;
walker->g_b = (lg + rg) / 510.0f;
walker->b_b = (lb + rb) / 510.0f;
}
else
{
float w_rec = 1.0f / (rx - lx);
walker->a_b = (la * rx - ra * lx) * w_rec;
walker->r_b = (lr * rx - rr * lx) * w_rec * (1.0f/255.0f);
walker->g_b = (lg * rx - rg * lx) * w_rec * (1.0f/255.0f);
walker->b_b = (lb * rx - rb * lx) * w_rec * (1.0f/255.0f);
walker->a_s = (ra - la) * w_rec;
walker->r_s = (rr - lr) * w_rec * (1.0f/255.0f);
walker->g_s = (rg - lg) * w_rec * (1.0f/255.0f);
walker->b_s = (rb - lb) * w_rec * (1.0f/255.0f);
}
walker->left_x = left_x;
walker->right_x = right_x;
walker->need_reset = FALSE;
}
uint32_t
_pixman_gradient_walker_pixel (pixman_gradient_walker_t *walker,
pixman_fixed_48_16_t x)
{
float a, r, g, b;
uint8_t a8, r8, g8, b8;
uint32_t v;
float y;
if (walker->need_reset || x < walker->left_x || x >= walker->right_x)
gradient_walker_reset (walker, x);
y = x * (1.0f / 65536.0f);
a = walker->a_s * y + walker->a_b;
r = a * (walker->r_s * y + walker->r_b);
g = a * (walker->g_s * y + walker->g_b);
b = a * (walker->b_s * y + walker->b_b);
a8 = a + 0.5f;
r8 = r + 0.5f;
g8 = g + 0.5f;
b8 = b + 0.5f;
v = ((a8 << 24) & 0xff000000) |
((r8 << 16) & 0x00ff0000) |
((g8 << 8) & 0x0000ff00) |
((b8 >> 0) & 0x000000ff);
return v;
}

940
programs/develop/libraries/pixman/pixman-image.c
View File

@ -1,940 +0,0 @@
/*
* Copyright © 2000 SuSE, Inc.
* Copyright © 2007 Red Hat, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of SuSE not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. SuSE makes no representations about the
* suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE
* BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include "pixman-private.h"
static const pixman_color_t transparent_black = { 0, 0, 0, 0 };
static void
gradient_property_changed (pixman_image_t *image)
{
gradient_t *gradient = &image->gradient;
int n = gradient->n_stops;
pixman_gradient_stop_t *stops = gradient->stops;
pixman_gradient_stop_t *begin = &(gradient->stops[-1]);
pixman_gradient_stop_t *end = &(gradient->stops[n]);
switch (gradient->common.repeat)
{
default:
case PIXMAN_REPEAT_NONE:
begin->x = INT32_MIN;
begin->color = transparent_black;
end->x = INT32_MAX;
end->color = transparent_black;
break;
case PIXMAN_REPEAT_NORMAL:
begin->x = stops[n - 1].x - pixman_fixed_1;
begin->color = stops[n - 1].color;
end->x = stops[0].x + pixman_fixed_1;
end->color = stops[0].color;
break;
case PIXMAN_REPEAT_REFLECT:
begin->x = - stops[0].x;
begin->color = stops[0].color;
end->x = pixman_int_to_fixed (2) - stops[n - 1].x;
end->color = stops[n - 1].color;
break;
case PIXMAN_REPEAT_PAD:
begin->x = INT32_MIN;
begin->color = stops[0].color;
end->x = INT32_MAX;
end->color = stops[n - 1].color;
break;
}
}
pixman_bool_t
_pixman_init_gradient (gradient_t * gradient,
const pixman_gradient_stop_t *stops,
int n_stops)
{
return_val_if_fail (n_stops > 0, FALSE);
/* We allocate two extra stops, one before the beginning of the stop list,
* and one after the end. These stops are initialized to whatever color
* would be used for positions outside the range of the stop list.
*
* This saves a bit of computation in the gradient walker.
*
* The pointer we store in the gradient_t struct still points to the
* first user-supplied struct, so when freeing, we will have to
* subtract one.
*/
gradient->stops =
pixman_malloc_ab (n_stops + 2, sizeof (pixman_gradient_stop_t));
if (!gradient->stops)
return FALSE;
gradient->stops += 1;
memcpy (gradient->stops, stops, n_stops * sizeof (pixman_gradient_stop_t));
gradient->n_stops = n_stops;
gradient->common.property_changed = gradient_property_changed;
return TRUE;
}
void
_pixman_image_init (pixman_image_t *image)
{
image_common_t *common = &image->common;
pixman_region32_init (&common->clip_region);
common->alpha_count = 0;
common->have_clip_region = FALSE;
common->clip_sources = FALSE;
common->transform = NULL;
common->repeat = PIXMAN_REPEAT_NONE;
common->filter = PIXMAN_FILTER_NEAREST;
common->filter_params = NULL;
common->n_filter_params = 0;
common->alpha_map = NULL;
common->component_alpha = FALSE;
common->ref_count = 1;
common->property_changed = NULL;
common->client_clip = FALSE;
common->destroy_func = NULL;
common->destroy_data = NULL;
common->dirty = TRUE;
}
pixman_bool_t
_pixman_image_fini (pixman_image_t *image)
{
image_common_t *common = (image_common_t *)image;
common->ref_count--;
if (common->ref_count == 0)
{
if (image->common.destroy_func)
image->common.destroy_func (image, image->common.destroy_data);
pixman_region32_fini (&common->clip_region);
free (common->transform);
free (common->filter_params);
if (common->alpha_map)
pixman_image_unref ((pixman_image_t *)common->alpha_map);
if (image->type == LINEAR ||
image->type == RADIAL ||
image->type == CONICAL)
{
if (image->gradient.stops)
{
/* See _pixman_init_gradient() for an explanation of the - 1 */
free (image->gradient.stops - 1);
}
/* This will trigger if someone adds a property_changed
* method to the linear/radial/conical gradient overwriting
* the general one.
*/
assert (
image->common.property_changed == gradient_property_changed);
}
if (image->type == BITS && image->bits.free_me)
free (image->bits.free_me);
return TRUE;
}
return FALSE;
}
pixman_image_t *
_pixman_image_allocate (void)
{
pixman_image_t *image = malloc (sizeof (pixman_image_t));
if (image)
_pixman_image_init (image);
return image;
}
static void
image_property_changed (pixman_image_t *image)
{
image->common.dirty = TRUE;
}
/* Ref Counting */
PIXMAN_EXPORT pixman_image_t *
pixman_image_ref (pixman_image_t *image)
{
image->common.ref_count++;
return image;
}
/* returns TRUE when the image is freed */
PIXMAN_EXPORT pixman_bool_t
pixman_image_unref (pixman_image_t *image)
{
if (_pixman_image_fini (image))
{
free (image);
return TRUE;
}
return FALSE;
}
PIXMAN_EXPORT void
pixman_image_set_destroy_function (pixman_image_t * image,
pixman_image_destroy_func_t func,
void * data)
{
image->common.destroy_func = func;
image->common.destroy_data = data;
}
PIXMAN_EXPORT void *
pixman_image_get_destroy_data (pixman_image_t *image)
{
return image->common.destroy_data;
}
void
_pixman_image_reset_clip_region (pixman_image_t *image)
{
image->common.have_clip_region = FALSE;
}
/* Executive Summary: This function is a no-op that only exists
* for historical reasons.
*
* There used to be a bug in the X server where it would rely on
* out-of-bounds accesses when it was asked to composite with a
* window as the source. It would create a pixman image pointing
* to some bogus position in memory, but then set a clip region
* to the position where the actual bits were.
*
* Due to a bug in old versions of pixman, where it would not clip
* against the image bounds when a clip region was set, this would
* actually work. So when the pixman bug was fixed, a workaround was
* added to allow certain out-of-bound accesses. This function disabled
* those workarounds.
*
* Since 0.21.2, pixman doesn't do these workarounds anymore, so now
* this function is a no-op.
*/
PIXMAN_EXPORT void
pixman_disable_out_of_bounds_workaround (void)
{
}
static void
compute_image_info (pixman_image_t *image)
{
pixman_format_code_t code;
uint32_t flags = 0;
/* Transform */
if (!image->common.transform)
{
flags |= (FAST_PATH_ID_TRANSFORM |
FAST_PATH_X_UNIT_POSITIVE |
FAST_PATH_Y_UNIT_ZERO |
FAST_PATH_AFFINE_TRANSFORM);
}
else
{
flags |= FAST_PATH_HAS_TRANSFORM;
if (image->common.transform->matrix[2][0] == 0 &&
image->common.transform->matrix[2][1] == 0 &&
image->common.transform->matrix[2][2] == pixman_fixed_1)
{
flags |= FAST_PATH_AFFINE_TRANSFORM;
if (image->common.transform->matrix[0][1] == 0 &&
image->common.transform->matrix[1][0] == 0)
{
if (image->common.transform->matrix[0][0] == -pixman_fixed_1 &&
image->common.transform->matrix[1][1] == -pixman_fixed_1)
{
flags |= FAST_PATH_ROTATE_180_TRANSFORM;
}
flags |= FAST_PATH_SCALE_TRANSFORM;
}
else if (image->common.transform->matrix[0][0] == 0 &&
image->common.transform->matrix[1][1] == 0)
{
pixman_fixed_t m01 = image->common.transform->matrix[0][1];
pixman_fixed_t m10 = image->common.transform->matrix[1][0];
if (m01 == -pixman_fixed_1 && m10 == pixman_fixed_1)
flags |= FAST_PATH_ROTATE_90_TRANSFORM;
else if (m01 == pixman_fixed_1 && m10 == -pixman_fixed_1)
flags |= FAST_PATH_ROTATE_270_TRANSFORM;
}
}
if (image->common.transform->matrix[0][0] > 0)
flags |= FAST_PATH_X_UNIT_POSITIVE;
if (image->common.transform->matrix[1][0] == 0)
flags |= FAST_PATH_Y_UNIT_ZERO;
}
/* Filter */
switch (image->common.filter)
{
case PIXMAN_FILTER_NEAREST:
case PIXMAN_FILTER_FAST:
flags |= (FAST_PATH_NEAREST_FILTER | FAST_PATH_NO_CONVOLUTION_FILTER);
break;
case PIXMAN_FILTER_BILINEAR:
case PIXMAN_FILTER_GOOD:
case PIXMAN_FILTER_BEST:
flags |= (FAST_PATH_BILINEAR_FILTER | FAST_PATH_NO_CONVOLUTION_FILTER);
/* Here we have a chance to optimize BILINEAR filter to NEAREST if
* they are equivalent for the currently used transformation matrix.
*/
if (flags & FAST_PATH_ID_TRANSFORM)
{
flags |= FAST_PATH_NEAREST_FILTER;
}
else if (
/* affine and integer translation components in matrix ... */
((flags & FAST_PATH_AFFINE_TRANSFORM) &&
!pixman_fixed_frac (image->common.transform->matrix[0][2] |
image->common.transform->matrix[1][2])) &&
(
/* ... combined with a simple rotation */
(flags & (FAST_PATH_ROTATE_90_TRANSFORM |
FAST_PATH_ROTATE_180_TRANSFORM |
FAST_PATH_ROTATE_270_TRANSFORM)) ||
/* ... or combined with a simple non-rotated translation */
(image->common.transform->matrix[0][0] == pixman_fixed_1 &&
image->common.transform->matrix[1][1] == pixman_fixed_1 &&
image->common.transform->matrix[0][1] == 0 &&
image->common.transform->matrix[1][0] == 0)
)
)
{
/* FIXME: there are some affine-test failures, showing that
* handling of BILINEAR and NEAREST filter is not quite
* equivalent when getting close to 32K for the translation
* components of the matrix. That's likely some bug, but for
* now just skip BILINEAR->NEAREST optimization in this case.
*/
pixman_fixed_t magic_limit = pixman_int_to_fixed (30000);
if (image->common.transform->matrix[0][2] <= magic_limit &&
image->common.transform->matrix[1][2] <= magic_limit &&
image->common.transform->matrix[0][2] >= -magic_limit &&
image->common.transform->matrix[1][2] >= -magic_limit)
{
flags |= FAST_PATH_NEAREST_FILTER;
}
}
break;
case PIXMAN_FILTER_CONVOLUTION:
break;
case PIXMAN_FILTER_SEPARABLE_CONVOLUTION:
flags |= FAST_PATH_SEPARABLE_CONVOLUTION_FILTER;
break;
default:
flags |= FAST_PATH_NO_CONVOLUTION_FILTER;
break;
}
/* Repeat mode */
switch (image->common.repeat)
{
case PIXMAN_REPEAT_NONE:
flags |=
FAST_PATH_NO_REFLECT_REPEAT |
FAST_PATH_NO_PAD_REPEAT |
FAST_PATH_NO_NORMAL_REPEAT;
break;
case PIXMAN_REPEAT_REFLECT:
flags |=
FAST_PATH_NO_PAD_REPEAT |
FAST_PATH_NO_NONE_REPEAT |
FAST_PATH_NO_NORMAL_REPEAT;
break;
case PIXMAN_REPEAT_PAD:
flags |=
FAST_PATH_NO_REFLECT_REPEAT |
FAST_PATH_NO_NONE_REPEAT |
FAST_PATH_NO_NORMAL_REPEAT;
break;
default:
flags |=
FAST_PATH_NO_REFLECT_REPEAT |
FAST_PATH_NO_PAD_REPEAT |
FAST_PATH_NO_NONE_REPEAT;
break;
}
/* Component alpha */
if (image->common.component_alpha)
flags |= FAST_PATH_COMPONENT_ALPHA;
else
flags |= FAST_PATH_UNIFIED_ALPHA;
flags |= (FAST_PATH_NO_ACCESSORS | FAST_PATH_NARROW_FORMAT);
/* Type specific checks */
switch (image->type)
{
case SOLID:
code = PIXMAN_solid;
if (image->solid.color.alpha == 0xffff)
flags |= FAST_PATH_IS_OPAQUE;
break;
case BITS:
if (image->bits.width == 1 &&
image->bits.height == 1 &&
image->common.repeat != PIXMAN_REPEAT_NONE)
{
code = PIXMAN_solid;
}
else
{
code = image->bits.format;
flags |= FAST_PATH_BITS_IMAGE;
}
if (!PIXMAN_FORMAT_A (image->bits.format) &&
PIXMAN_FORMAT_TYPE (image->bits.format) != PIXMAN_TYPE_GRAY &&
PIXMAN_FORMAT_TYPE (image->bits.format) != PIXMAN_TYPE_COLOR)
{
flags |= FAST_PATH_SAMPLES_OPAQUE;
if (image->common.repeat != PIXMAN_REPEAT_NONE)
flags |= FAST_PATH_IS_OPAQUE;
}
if (image->bits.read_func || image->bits.write_func)
flags &= ~FAST_PATH_NO_ACCESSORS;
if (PIXMAN_FORMAT_IS_WIDE (image->bits.format))
flags &= ~FAST_PATH_NARROW_FORMAT;
break;
case RADIAL:
code = PIXMAN_unknown;
/*
* As explained in pixman-radial-gradient.c, every point of
* the plane has a valid associated radius (and thus will be
* colored) if and only if a is negative (i.e. one of the two
* circles contains the other one).
*/
if (image->radial.a >= 0)
break;
/* Fall through */
case CONICAL:
case LINEAR:
code = PIXMAN_unknown;
if (image->common.repeat != PIXMAN_REPEAT_NONE)
{
int i;
flags |= FAST_PATH_IS_OPAQUE;
for (i = 0; i < image->gradient.n_stops; ++i)
{
if (image->gradient.stops[i].color.alpha != 0xffff)
{
flags &= ~FAST_PATH_IS_OPAQUE;
break;
}
}
}
break;
default:
code = PIXMAN_unknown;
break;
}
/* Alpha map */
if (!image->common.alpha_map)
{
flags |= FAST_PATH_NO_ALPHA_MAP;
}
else
{
if (PIXMAN_FORMAT_IS_WIDE (image->common.alpha_map->format))
flags &= ~FAST_PATH_NARROW_FORMAT;
}
/* Both alpha maps and convolution filters can introduce
* non-opaqueness in otherwise opaque images. Also
* an image with component alpha turned on is only opaque
* if all channels are opaque, so we simply turn it off
* unconditionally for those images.
*/
if (image->common.alpha_map ||
image->common.filter == PIXMAN_FILTER_CONVOLUTION ||
image->common.filter == PIXMAN_FILTER_SEPARABLE_CONVOLUTION ||
image->common.component_alpha)
{
flags &= ~(FAST_PATH_IS_OPAQUE | FAST_PATH_SAMPLES_OPAQUE);
}
image->common.flags = flags;
image->common.extended_format_code = code;
}
void
_pixman_image_validate (pixman_image_t *image)
{
if (image->common.dirty)
{
compute_image_info (image);
/* It is important that property_changed is
* called *after* compute_image_info() because
* property_changed() can make use of the flags
* to set up accessors etc.
*/
if (image->common.property_changed)
image->common.property_changed (image);
image->common.dirty = FALSE;
}
if (image->common.alpha_map)
_pixman_image_validate ((pixman_image_t *)image->common.alpha_map);
}
PIXMAN_EXPORT pixman_bool_t
pixman_image_set_clip_region32 (pixman_image_t * image,
pixman_region32_t *region)
{
image_common_t *common = (image_common_t *)image;
pixman_bool_t result;
if (region)
{
if ((result = pixman_region32_copy (&common->clip_region, region)))
image->common.have_clip_region = TRUE;
}
else
{
_pixman_image_reset_clip_region (image);
result = TRUE;
}
image_property_changed (image);
return result;
}
PIXMAN_EXPORT pixman_bool_t
pixman_image_set_clip_region (pixman_image_t * image,
pixman_region16_t *region)
{
image_common_t *common = (image_common_t *)image;
pixman_bool_t result;
if (region)
{
if ((result = pixman_region32_copy_from_region16 (&common->clip_region, region)))
image->common.have_clip_region = TRUE;
}
else
{
_pixman_image_reset_clip_region (image);
result = TRUE;
}
image_property_changed (image);
return result;
}
PIXMAN_EXPORT void
pixman_image_set_has_client_clip (pixman_image_t *image,
pixman_bool_t client_clip)
{
image->common.client_clip = client_clip;
}
PIXMAN_EXPORT pixman_bool_t
pixman_image_set_transform (pixman_image_t * image,
const pixman_transform_t *transform)
{
static const pixman_transform_t id =
{
{ { pixman_fixed_1, 0, 0 },
{ 0, pixman_fixed_1, 0 },
{ 0, 0, pixman_fixed_1 } }
};
image_common_t *common = (image_common_t *)image;
pixman_bool_t result;
if (common->transform == transform)
return TRUE;
if (!transform || memcmp (&id, transform, sizeof (pixman_transform_t)) == 0)
{
free (common->transform);
common->transform = NULL;
result = TRUE;
goto out;
}
if (common->transform &&
memcmp (common->transform, transform, sizeof (pixman_transform_t)) == 0)
{
return TRUE;
}
if (common->transform == NULL)
common->transform = malloc (sizeof (pixman_transform_t));
if (common->transform == NULL)
{
result = FALSE;
goto out;
}
memcpy (common->transform, transform, sizeof(pixman_transform_t));
result = TRUE;
out:
image_property_changed (image);
return result;
}
PIXMAN_EXPORT void
pixman_image_set_repeat (pixman_image_t *image,
pixman_repeat_t repeat)
{
if (image->common.repeat == repeat)
return;
image->common.repeat = repeat;
image_property_changed (image);
}
PIXMAN_EXPORT pixman_bool_t
pixman_image_set_filter (pixman_image_t * image,
pixman_filter_t filter,
const pixman_fixed_t *params,
int n_params)
{
image_common_t *common = (image_common_t *)image;
pixman_fixed_t *new_params;
if (params == common->filter_params && filter == common->filter)
return TRUE;
if (filter == PIXMAN_FILTER_SEPARABLE_CONVOLUTION)
{
int width = pixman_fixed_to_int (params[0]);
int height = pixman_fixed_to_int (params[1]);
int x_phase_bits = pixman_fixed_to_int (params[2]);
int y_phase_bits = pixman_fixed_to_int (params[3]);
int n_x_phases = (1 << x_phase_bits);
int n_y_phases = (1 << y_phase_bits);
return_val_if_fail (
n_params == 4 + n_x_phases * width + n_y_phases * height, FALSE);
}
new_params = NULL;
if (params)
{
new_params = pixman_malloc_ab (n_params, sizeof (pixman_fixed_t));
if (!new_params)
return FALSE;
memcpy (new_params,
params, n_params * sizeof (pixman_fixed_t));
}
common->filter = filter;
if (common->filter_params)
free (common->filter_params);
common->filter_params = new_params;
common->n_filter_params = n_params;
image_property_changed (image);
return TRUE;
}
PIXMAN_EXPORT void
pixman_image_set_source_clipping (pixman_image_t *image,
pixman_bool_t clip_sources)
{
if (image->common.clip_sources == clip_sources)
return;
image->common.clip_sources = clip_sources;
image_property_changed (image);
}
/* Unlike all the other property setters, this function does not
* copy the content of indexed. Doing this copying is simply
* way, way too expensive.
*/
PIXMAN_EXPORT void
pixman_image_set_indexed (pixman_image_t * image,
const pixman_indexed_t *indexed)
{
bits_image_t *bits = (bits_image_t *)image;
if (bits->indexed == indexed)
return;
bits->indexed = indexed;
image_property_changed (image);
}
PIXMAN_EXPORT void
pixman_image_set_alpha_map (pixman_image_t *image,
pixman_image_t *alpha_map,
int16_t x,
int16_t y)
{
image_common_t *common = (image_common_t *)image;
return_if_fail (!alpha_map || alpha_map->type == BITS);
if (alpha_map && common->alpha_count > 0)
{
/* If this image is being used as an alpha map itself,
* then you can't give it an alpha map of its own.
*/
return;
}
if (alpha_map && alpha_map->common.alpha_map)
{
/* If the image has an alpha map of its own,
* then it can't be used as an alpha map itself
*/
return;
}
if (common->alpha_map != (bits_image_t *)alpha_map)
{
if (common->alpha_map)
{
common->alpha_map->common.alpha_count--;
pixman_image_unref ((pixman_image_t *)common->alpha_map);
}
if (alpha_map)
{
common->alpha_map = (bits_image_t *)pixman_image_ref (alpha_map);
common->alpha_map->common.alpha_count++;
}
else
{
common->alpha_map = NULL;
}
}
common->alpha_origin_x = x;
common->alpha_origin_y = y;
image_property_changed (image);
}
PIXMAN_EXPORT void
pixman_image_set_component_alpha (pixman_image_t *image,
pixman_bool_t component_alpha)
{
if (image->common.component_alpha == component_alpha)
return;
image->common.component_alpha = component_alpha;
image_property_changed (image);
}
PIXMAN_EXPORT pixman_bool_t
pixman_image_get_component_alpha (pixman_image_t *image)
{
return image->common.component_alpha;
}
PIXMAN_EXPORT void
pixman_image_set_accessors (pixman_image_t * image,
pixman_read_memory_func_t read_func,
pixman_write_memory_func_t write_func)
{
return_if_fail (image != NULL);
if (image->type == BITS)
{
image->bits.read_func = read_func;
image->bits.write_func = write_func;
image_property_changed (image);
}
}
PIXMAN_EXPORT uint32_t *
pixman_image_get_data (pixman_image_t *image)
{
if (image->type == BITS)
return image->bits.bits;
return NULL;
}
PIXMAN_EXPORT int
pixman_image_get_width (pixman_image_t *image)
{
if (image->type == BITS)
return image->bits.width;
return 0;
}
PIXMAN_EXPORT int
pixman_image_get_height (pixman_image_t *image)
{
if (image->type == BITS)
return image->bits.height;
return 0;
}
PIXMAN_EXPORT int
pixman_image_get_stride (pixman_image_t *image)
{
if (image->type == BITS)
return image->bits.rowstride * (int) sizeof (uint32_t);
return 0;
}
PIXMAN_EXPORT int
pixman_image_get_depth (pixman_image_t *image)
{
if (image->type == BITS)
return PIXMAN_FORMAT_DEPTH (image->bits.format);
return 0;
}
PIXMAN_EXPORT pixman_format_code_t
pixman_image_get_format (pixman_image_t *image)
{
if (image->type == BITS)
return image->bits.format;
return PIXMAN_null;
}
uint32_t
_pixman_image_get_solid (pixman_implementation_t *imp,
pixman_image_t * image,
pixman_format_code_t format)
{
uint32_t result;
if (image->type == SOLID)
{
result = image->solid.color_32;
}
else if (image->type == BITS)
{
if (image->bits.format == PIXMAN_a8r8g8b8)
result = image->bits.bits[0];
else if (image->bits.format == PIXMAN_x8r8g8b8)
result = image->bits.bits[0] | 0xff000000;
else if (image->bits.format == PIXMAN_a8)
result = (*(uint8_t *)image->bits.bits) << 24;
else
goto otherwise;
}
else
{
pixman_iter_t iter;
otherwise:
_pixman_implementation_src_iter_init (
imp, &iter, image, 0, 0, 1, 1,
(uint8_t *)&result,
ITER_NARROW, image->common.flags);
result = *iter.get_scanline (&iter, NULL);
}
/* If necessary, convert RGB <--> BGR. */
if (PIXMAN_FORMAT_TYPE (format) != PIXMAN_TYPE_ARGB
&& PIXMAN_FORMAT_TYPE (format) != PIXMAN_TYPE_ARGB_SRGB)
{
result = (((result & 0xff000000) >> 0) |
((result & 0x00ff0000) >> 16) |
((result & 0x0000ff00) >> 0) |
((result & 0x000000ff) << 16));
}
return result;
}

398
programs/develop/libraries/pixman/pixman-implementation.c
View File

@ -1,398 +0,0 @@
/*
* Copyright © 2009 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 Red Hat not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. Red Hat makes no representations about the
* suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS 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 <stdlib.h>
#include "pixman-private.h"
pixman_implementation_t *
_pixman_implementation_create (pixman_implementation_t *fallback,
const pixman_fast_path_t *fast_paths)
{
pixman_implementation_t *imp;
assert (fast_paths);
if ((imp = malloc (sizeof (pixman_implementation_t))))
{
pixman_implementation_t *d;
memset (imp, 0, sizeof *imp);
imp->fallback = fallback;
imp->fast_paths = fast_paths;
/* Make sure the whole fallback chain has the right toplevel */
for (d = imp; d != NULL; d = d->fallback)
d->toplevel = imp;
}
return imp;
}
#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 void
dummy_composite_rect (pixman_implementation_t *imp,
pixman_composite_info_t *info)
{
}
void
_pixman_implementation_lookup_composite (pixman_implementation_t *toplevel,
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 = toplevel; imp != NULL; imp = imp->fallback)
{
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;
}
}
/* We should never reach this point */
_pixman_log_error (
FUNC,
"No composite function found\n"
"\n"
"The most likely cause of this is that this system has issues with\n"
"thread local storage\n");
*out_imp = NULL;
*out_func = dummy_composite_rect;
return;
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;
}
}
static void
dummy_combine (pixman_implementation_t *imp,
pixman_op_t op,
uint32_t * pd,
const uint32_t * ps,
const uint32_t * pm,
int w)
{
}
pixman_combine_32_func_t
_pixman_implementation_lookup_combiner (pixman_implementation_t *imp,
pixman_op_t op,
pixman_bool_t component_alpha,
pixman_bool_t narrow)
{
while (imp)
{
pixman_combine_32_func_t f = NULL;
switch ((narrow << 1) | component_alpha)
{
case 0: /* not narrow, not component alpha */
f = (pixman_combine_32_func_t)imp->combine_float[op];
break;
case 1: /* not narrow, component_alpha */
f = (pixman_combine_32_func_t)imp->combine_float_ca[op];
break;
case 2: /* narrow, not component alpha */
f = imp->combine_32[op];
break;
case 3: /* narrow, component_alpha */
f = imp->combine_32_ca[op];
break;
}
if (f)
return f;
imp = imp->fallback;
}
/* We should never reach this point */
_pixman_log_error (FUNC, "No known combine function\n");
return dummy_combine;
}
pixman_bool_t
_pixman_implementation_blt (pixman_implementation_t * imp,
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 dest_x,
int dest_y,
int width,
int height)
{
while (imp)
{
if (imp->blt &&
(*imp->blt) (imp, src_bits, dst_bits, src_stride, dst_stride,
src_bpp, dst_bpp, src_x, src_y, dest_x, dest_y,
width, height))
{
return TRUE;
}
imp = imp->fallback;
}
return FALSE;
}
pixman_bool_t
_pixman_implementation_fill (pixman_implementation_t *imp,
uint32_t * bits,
int stride,
int bpp,
int x,
int y,
int width,
int height,
uint32_t filler)
{
while (imp)
{
if (imp->fill &&
((*imp->fill) (imp, bits, stride, bpp, x, y, width, height, filler)))
{
return TRUE;
}
imp = imp->fallback;
}
return FALSE;
}
pixman_bool_t
_pixman_implementation_src_iter_init (pixman_implementation_t *imp,
pixman_iter_t *iter,
pixman_image_t *image,
int x,
int y,
int width,
int height,
uint8_t *buffer,
iter_flags_t iter_flags,
uint32_t image_flags)
{
iter->image = image;
iter->buffer = (uint32_t *)buffer;
iter->x = x;
iter->y = y;
iter->width = width;
iter->height = height;
iter->iter_flags = iter_flags;
iter->image_flags = image_flags;
while (imp)
{
if (imp->src_iter_init && (*imp->src_iter_init) (imp, iter))
return TRUE;
imp = imp->fallback;
}
return FALSE;
}
pixman_bool_t
_pixman_implementation_dest_iter_init (pixman_implementation_t *imp,
pixman_iter_t *iter,
pixman_image_t *image,
int x,
int y,
int width,
int height,
uint8_t *buffer,
iter_flags_t iter_flags,
uint32_t image_flags)
{
iter->image = image;
iter->buffer = (uint32_t *)buffer;
iter->x = x;
iter->y = y;
iter->width = width;
iter->height = height;
iter->iter_flags = iter_flags;
iter->image_flags = image_flags;
while (imp)
{
if (imp->dest_iter_init && (*imp->dest_iter_init) (imp, iter))
return TRUE;
imp = imp->fallback;
}
return FALSE;
}
pixman_bool_t
_pixman_disabled (const char *name)
{
const char *env;
if ((env = getenv ("PIXMAN_DISABLE")))
{
do
{
const char *end;
int len;
if ((end = strchr (env, ' ')))
len = end - env;
else
len = strlen (env);
if (strlen (name) == len && strncmp (name, env, len) == 0)
{
printf ("pixman: Disabled %s implementation\n", name);
return TRUE;
}
env += len;
}
while (*env++);
}
return FALSE;
}
pixman_implementation_t *
_pixman_choose_implementation (void)
{
pixman_implementation_t *imp;
imp = _pixman_implementation_create_general();
if (!_pixman_disabled ("fast"))
imp = _pixman_implementation_create_fast_path (imp);
imp = _pixman_x86_get_implementations (imp);
imp = _pixman_implementation_create_noop (imp);
return imp;
}

1339
programs/develop/libraries/pixman/pixman-inlines.h
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287
programs/develop/libraries/pixman/pixman-linear-gradient.c
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@ -1,287 +0,0 @@
/* -*- Mode: c; c-basic-offset: 4; tab-width: 8; indent-tabs-mode: t; -*- */
/*
* Copyright © 2000 SuSE, Inc.
* Copyright © 2007 Red Hat, Inc.
* Copyright © 2000 Keith Packard, member of The XFree86 Project, Inc.
* 2005 Lars Knoll & Zack Rusin, Trolltech
*
* 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 Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS 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 <stdlib.h>
#include "pixman-private.h"
static pixman_bool_t
linear_gradient_is_horizontal (pixman_image_t *image,
int x,
int y,
int width,
int height)
{
linear_gradient_t *linear = (linear_gradient_t *)image;
pixman_vector_t v;
pixman_fixed_32_32_t l;
pixman_fixed_48_16_t dx, dy;
double inc;
if (image->common.transform)
{
/* projective transformation */
if (image->common.transform->matrix[2][0] != 0 ||
image->common.transform->matrix[2][1] != 0 ||
image->common.transform->matrix[2][2] == 0)
{
return FALSE;
}
v.vector[0] = image->common.transform->matrix[0][1];
v.vector[1] = image->common.transform->matrix[1][1];
v.vector[2] = image->common.transform->matrix[2][2];
}
else
{
v.vector[0] = 0;
v.vector[1] = pixman_fixed_1;
v.vector[2] = pixman_fixed_1;
}
dx = linear->p2.x - linear->p1.x;
dy = linear->p2.y - linear->p1.y;
l = dx * dx + dy * dy;
if (l == 0)
return FALSE;
/*
* compute how much the input of the gradient walked changes
* when moving vertically through the whole image
*/
inc = height * (double) pixman_fixed_1 * pixman_fixed_1 *
(dx * v.vector[0] + dy * v.vector[1]) /
(v.vector[2] * (double) l);
/* check that casting to integer would result in 0 */
if (-1 < inc && inc < 1)
return TRUE;
return FALSE;
}
static uint32_t *
linear_get_scanline_narrow (pixman_iter_t *iter,
const uint32_t *mask)
{
pixman_image_t *image = iter->image;
int x = iter->x;
int y = iter->y;
int width = iter->width;
uint32_t * buffer = iter->buffer;
pixman_vector_t v, unit;
pixman_fixed_32_32_t l;
pixman_fixed_48_16_t dx, dy;
gradient_t *gradient = (gradient_t *)image;
linear_gradient_t *linear = (linear_gradient_t *)image;
uint32_t *end = buffer + width;
pixman_gradient_walker_t walker;
_pixman_gradient_walker_init (&walker, gradient, image->common.repeat);
/* reference point is the center of the pixel */
v.vector[0] = pixman_int_to_fixed (x) + pixman_fixed_1 / 2;
v.vector[1] = pixman_int_to_fixed (y) + pixman_fixed_1 / 2;
v.vector[2] = pixman_fixed_1;
if (image->common.transform)
{
if (!pixman_transform_point_3d (image->common.transform, &v))
return iter->buffer;
unit.vector[0] = image->common.transform->matrix[0][0];
unit.vector[1] = image->common.transform->matrix[1][0];
unit.vector[2] = image->common.transform->matrix[2][0];
}
else
{
unit.vector[0] = pixman_fixed_1;
unit.vector[1] = 0;
unit.vector[2] = 0;
}
dx = linear->p2.x - linear->p1.x;
dy = linear->p2.y - linear->p1.y;
l = dx * dx + dy * dy;
if (l == 0 || unit.vector[2] == 0)
{
/* affine transformation only */
pixman_fixed_32_32_t t, next_inc;
double inc;
if (l == 0 || v.vector[2] == 0)
{
t = 0;
inc = 0;
}
else
{
double invden, v2;
invden = pixman_fixed_1 * (double) pixman_fixed_1 /
(l * (double) v.vector[2]);
v2 = v.vector[2] * (1. / pixman_fixed_1);
t = ((dx * v.vector[0] + dy * v.vector[1]) -
(dx * linear->p1.x + dy * linear->p1.y) * v2) * invden;
inc = (dx * unit.vector[0] + dy * unit.vector[1]) * invden;
}
next_inc = 0;
if (((pixman_fixed_32_32_t )(inc * width)) == 0)
{
register uint32_t color;
color = _pixman_gradient_walker_pixel (&walker, t);
while (buffer < end)
*buffer++ = color;
}
else
{
int i;
i = 0;
while (buffer < end)
{
if (!mask || *mask++)
{
*buffer = _pixman_gradient_walker_pixel (&walker,
t + next_inc);
}
i++;
next_inc = inc * i;
buffer++;
}
}
}
else
{
/* projective transformation */
double t;
t = 0;
while (buffer < end)
{
if (!mask || *mask++)
{
if (v.vector[2] != 0)
{
double invden, v2;
invden = pixman_fixed_1 * (double) pixman_fixed_1 /
(l * (double) v.vector[2]);
v2 = v.vector[2] * (1. / pixman_fixed_1);
t = ((dx * v.vector[0] + dy * v.vector[1]) -
(dx * linear->p1.x + dy * linear->p1.y) * v2) * invden;
}
*buffer = _pixman_gradient_walker_pixel (&walker, t);
}
++buffer;
v.vector[0] += unit.vector[0];
v.vector[1] += unit.vector[1];
v.vector[2] += unit.vector[2];
}
}
iter->y++;
return iter->buffer;
}
static uint32_t *
linear_get_scanline_wide (pixman_iter_t *iter, const uint32_t *mask)
{
uint32_t *buffer = linear_get_scanline_narrow (iter, NULL);
pixman_expand_to_float (
(argb_t *)buffer, buffer, PIXMAN_a8r8g8b8, iter->width);
return buffer;
}
void
_pixman_linear_gradient_iter_init (pixman_image_t *image, pixman_iter_t *iter)
{
if (linear_gradient_is_horizontal (
iter->image, iter->x, iter->y, iter->width, iter->height))
{
if (iter->iter_flags & ITER_NARROW)
linear_get_scanline_narrow (iter, NULL);
else
linear_get_scanline_wide (iter, NULL);
iter->get_scanline = _pixman_iter_get_scanline_noop;
}
else
{
if (iter->iter_flags & ITER_NARROW)
iter->get_scanline = linear_get_scanline_narrow;
else
iter->get_scanline = linear_get_scanline_wide;
}
}
PIXMAN_EXPORT pixman_image_t *
pixman_image_create_linear_gradient (const pixman_point_fixed_t * p1,
const pixman_point_fixed_t * p2,
const pixman_gradient_stop_t *stops,
int n_stops)
{
pixman_image_t *image;
linear_gradient_t *linear;
image = _pixman_image_allocate ();
if (!image)
return NULL;
linear = &image->linear;
if (!_pixman_init_gradient (&linear->common, stops, n_stops))
{
free (image);
return NULL;
}
linear->p1 = *p1;
linear->p2 = *p2;
image->type = LINEAR;
return image;
}

1073
programs/develop/libraries/pixman/pixman-matrix.c
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4082
programs/develop/libraries/pixman/pixman-mmx.c
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176
programs/develop/libraries/pixman/pixman-noop.c
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/* -*- 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-inlines.h"
static void
noop_composite (pixman_implementation_t *imp,
pixman_composite_info_t *info)
{
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 pixman_bool_t
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->iter_flags & (ITER_IGNORE_ALPHA | ITER_IGNORE_RGB)) ==
(ITER_IGNORE_ALPHA | ITER_IGNORE_RGB))
{
iter->get_scanline = _pixman_iter_get_scanline_noop;
}
else if (image->common.extended_format_code == PIXMAN_solid &&
(iter->image->type == SOLID ||
(iter->image_flags & FAST_PATH_NO_ALPHA_MAP)))
{
if (iter->iter_flags & ITER_NARROW)
{
uint32_t *buffer = iter->buffer;
uint32_t *end = buffer + iter->width;
uint32_t color;
if (image->type == SOLID)
color = image->solid.color_32;
else
color = image->bits.fetch_pixel_32 (&image->bits, 0, 0);
while (buffer < end)
*(buffer++) = color;
}
else
{
argb_t *buffer = (argb_t *)iter->buffer;
argb_t *end = buffer + iter->width;
argb_t color;
if (image->type == SOLID)
color = image->solid.color_float;
else
color = image->bits.fetch_pixel_float (&image->bits, 0, 0);
while (buffer < end)
*(buffer++) = color;
}
iter->get_scanline = _pixman_iter_get_scanline_noop;
}
else if (image->common.extended_format_code == PIXMAN_a8r8g8b8 &&
(iter->iter_flags & ITER_NARROW) &&
(iter->image_flags & FLAGS) == FLAGS &&
iter->x >= 0 && iter->y >= 0 &&
iter->x + iter->width <= image->bits.width &&
iter->y + iter->height <= image->bits.height)
{
iter->buffer =
image->bits.bits + iter->y * image->bits.rowstride + iter->x;
iter->get_scanline = noop_get_scanline;
}
else
{
return FALSE;
}
return TRUE;
}
static pixman_bool_t
noop_dest_iter_init (pixman_implementation_t *imp, pixman_iter_t *iter)
{
pixman_image_t *image = iter->image;
uint32_t image_flags = iter->image_flags;
uint32_t iter_flags = iter->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;
return TRUE;
}
else
{
return FALSE;
}
}
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;
}

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programs/develop/libraries/pixman/pixman-private.h
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/* -*- Mode: c; c-basic-offset: 4; tab-width: 8; indent-tabs-mode: t; -*- */
/*
*
* Copyright © 2000 Keith Packard, member of The XFree86 Project, Inc.
* Copyright © 2000 SuSE, Inc.
* 2005 Lars Knoll & Zack Rusin, Trolltech
* 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 Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS 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 <stdlib.h>
#include <math.h>
#include "pixman-private.h"
static inline pixman_fixed_32_32_t
dot (pixman_fixed_48_16_t x1,
pixman_fixed_48_16_t y1,
pixman_fixed_48_16_t z1,
pixman_fixed_48_16_t x2,
pixman_fixed_48_16_t y2,
pixman_fixed_48_16_t z2)
{
/*
* Exact computation, assuming that the input values can
* be represented as pixman_fixed_16_16_t
*/
return x1 * x2 + y1 * y2 + z1 * z2;
}
static inline double
fdot (double x1,
double y1,
double z1,
double x2,
double y2,
double z2)
{
/*
* Error can be unbound in some special cases.
* Using clever dot product algorithms (for example compensated
* dot product) would improve this but make the code much less
* obvious
*/
return x1 * x2 + y1 * y2 + z1 * z2;
}
static uint32_t
radial_compute_color (double a,
double b,
double c,
double inva,
double dr,
double mindr,
pixman_gradient_walker_t *walker,
pixman_repeat_t repeat)
{
/*
* In this function error propagation can lead to bad results:
* - discr can have an unbound error (if b*b-a*c is very small),
* potentially making it the opposite sign of what it should have been
* (thus clearing a pixel that would have been colored or vice-versa)
* or propagating the error to sqrtdiscr;
* if discr has the wrong sign or b is very small, this can lead to bad
* results
*
* - the algorithm used to compute the solutions of the quadratic
* equation is not numerically stable (but saves one division compared
* to the numerically stable one);
* this can be a problem if a*c is much smaller than b*b
*
* - the above problems are worse if a is small (as inva becomes bigger)
*/
double discr;
if (a == 0)
{
double t;
if (b == 0)
return 0;
t = pixman_fixed_1 / 2 * c / b;
if (repeat == PIXMAN_REPEAT_NONE)
{
if (0 <= t && t <= pixman_fixed_1)
return _pixman_gradient_walker_pixel (walker, t);
}
else
{
if (t * dr >= mindr)
return _pixman_gradient_walker_pixel (walker, t);
}
return 0;
}
discr = fdot (b, a, 0, b, -c, 0);
if (discr >= 0)
{
double sqrtdiscr, t0, t1;
sqrtdiscr = sqrt (discr);
t0 = (b + sqrtdiscr) * inva;
t1 = (b - sqrtdiscr) * inva;
/*
* The root that must be used is the biggest one that belongs
* to the valid range ([0,1] for PIXMAN_REPEAT_NONE, any
* solution that results in a positive radius otherwise).
*
* If a > 0, t0 is the biggest solution, so if it is valid, it
* is the correct result.
*
* If a < 0, only one of the solutions can be valid, so the
* order in which they are tested is not important.
*/
if (repeat == PIXMAN_REPEAT_NONE)
{
if (0 <= t0 && t0 <= pixman_fixed_1)
return _pixman_gradient_walker_pixel (walker, t0);
else if (0 <= t1 && t1 <= pixman_fixed_1)
return _pixman_gradient_walker_pixel (walker, t1);
}
else
{
if (t0 * dr >= mindr)
return _pixman_gradient_walker_pixel (walker, t0);
else if (t1 * dr >= mindr)
return _pixman_gradient_walker_pixel (walker, t1);
}
}
return 0;
}
static uint32_t *
radial_get_scanline_narrow (pixman_iter_t *iter, const uint32_t *mask)
{
/*
* Implementation of radial gradients following the PDF specification.
* See section 8.7.4.5.4 Type 3 (Radial) Shadings of the PDF Reference
* Manual (PDF 32000-1:2008 at the time of this writing).
*
* In the radial gradient problem we are given two circles (c₁,r₁) and
* (c₂,r₂) that define the gradient itself.
*
* Mathematically the gradient can be defined as the family of circles
*
* ((1-t)·c₁ + t·(c₂), (1-t)·r₁ + t·r₂)
*
* excluding those circles whose radius would be < 0. When a point
* belongs to more than one circle, the one with a bigger t is the only
* one that contributes to its color. When a point does not belong
* to any of the circles, it is transparent black, i.e. RGBA (0, 0, 0, 0).
* Further limitations on the range of values for t are imposed when
* the gradient is not repeated, namely t must belong to [0,1].
*
* The graphical result is the same as drawing the valid (radius > 0)
* circles with increasing t in [-inf, +inf] (or in [0,1] if the gradient
* is not repeated) using SOURCE operator composition.
*
* It looks like a cone pointing towards the viewer if the ending circle
* is smaller than the starting one, a cone pointing inside the page if
* the starting circle is the smaller one and like a cylinder if they
* have the same radius.
*
* What we actually do is, given the point whose color we are interested
* in, compute the t values for that point, solving for t in:
*
* length((1-t)·c₁ + t·(c₂) - p) = (1-t)·r₁ + t·r₂
*
* Let's rewrite it in a simpler way, by defining some auxiliary
* variables:
*
* cd = c₂ - c₁
* pd = p - c₁
* dr = r₂ - r₁
* length(t·cd - pd) = r₁ + t·dr
*
* which actually means
*
* hypot(t·cdx - pdx, t·cdy - pdy) = r₁ + t·dr
*
* or
*
* ⎷((t·cdx - pdx)² + (t·cdy - pdy)²) = r₁ + t·dr.
*
* If we impose (as stated earlier) that r₁ + t·dr >= 0, it becomes:
*
* (t·cdx - pdx)² + (t·cdy - pdy)² = (r₁ + t·dr)²
*
* where we can actually expand the squares and solve for t:
*
* t²cdx² - 2t·cdx·pdx + pdx² + t²cdy² - 2t·cdy·pdy + pdy² =
* = r₁² + 2·r₁·t·dr + t²·dr²
*
* (cdx² + cdy² - dr²)t² - 2(cdx·pdx + cdy·pdy + r₁·dr)t +
* (pdx² + pdy² - r₁²) = 0
*
* A = cdx² + cdy² - dr²
* B = pdx·cdx + pdy·cdy + r₁·dr
* C = pdx² + pdy² - r₁²
* At² - 2Bt + C = 0
*
* The solutions (unless the equation degenerates because of A = 0) are:
*
* t = (B ± ⎷(B² - A·C)) / A
*
* The solution we are going to prefer is the bigger one, unless the
* radius associated to it is negative (or it falls outside the valid t
* range).
*
* Additional observations (useful for optimizations):
* A does not depend on p
*
* A < 0 <=> one of the two circles completely contains the other one
* <=> for every p, the radiuses associated with the two t solutions
* have opposite sign
*/
pixman_image_t *image = iter->image;
int x = iter->x;
int y = iter->y;
int width = iter->width;
uint32_t *buffer = iter->buffer;
gradient_t *gradient = (gradient_t *)image;
radial_gradient_t *radial = (radial_gradient_t *)image;
uint32_t *end = buffer + width;
pixman_gradient_walker_t walker;
pixman_vector_t v, unit;
/* reference point is the center of the pixel */
v.vector[0] = pixman_int_to_fixed (x) + pixman_fixed_1 / 2;
v.vector[1] = pixman_int_to_fixed (y) + pixman_fixed_1 / 2;
v.vector[2] = pixman_fixed_1;
_pixman_gradient_walker_init (&walker, gradient, image->common.repeat);
if (image->common.transform)
{
if (!pixman_transform_point_3d (image->common.transform, &v))
return iter->buffer;
unit.vector[0] = image->common.transform->matrix[0][0];
unit.vector[1] = image->common.transform->matrix[1][0];
unit.vector[2] = image->common.transform->matrix[2][0];
}
else
{
unit.vector[0] = pixman_fixed_1;
unit.vector[1] = 0;
unit.vector[2] = 0;
}
if (unit.vector[2] == 0 && v.vector[2] == pixman_fixed_1)
{
/*
* Given:
*
* t = (B ± ⎷(B² - A·C)) / A
*
* where
*
* A = cdx² + cdy² - dr²
* B = pdx·cdx + pdy·cdy + r₁·dr
* C = pdx² + pdy² - r₁²
* det = B² - A·C
*
* Since we have an affine transformation, we know that (pdx, pdy)
* increase linearly with each pixel,
*
* pdx = pdx₀ + n·ux,
* pdy = pdy₀ + n·uy,
*
* we can then express B, C and det through multiple differentiation.
*/
pixman_fixed_32_32_t b, db, c, dc, ddc;
/* warning: this computation may overflow */
v.vector[0] -= radial->c1.x;
v.vector[1] -= radial->c1.y;
/*
* B and C are computed and updated exactly.
* If fdot was used instead of dot, in the worst case it would
* lose 11 bits of precision in each of the multiplication and
* summing up would zero out all the bit that were preserved,
* thus making the result 0 instead of the correct one.
* This would mean a worst case of unbound relative error or
* about 2^10 absolute error
*/
b = dot (v.vector[0], v.vector[1], radial->c1.radius,
radial->delta.x, radial->delta.y, radial->delta.radius);
db = dot (unit.vector[0], unit.vector[1], 0,
radial->delta.x, radial->delta.y, 0);
c = dot (v.vector[0], v.vector[1],
-((pixman_fixed_48_16_t) radial->c1.radius),
v.vector[0], v.vector[1], radial->c1.radius);
dc = dot (2 * (pixman_fixed_48_16_t) v.vector[0] + unit.vector[0],
2 * (pixman_fixed_48_16_t) v.vector[1] + unit.vector[1],
0,
unit.vector[0], unit.vector[1], 0);
ddc = 2 * dot (unit.vector[0], unit.vector[1], 0,
unit.vector[0], unit.vector[1], 0);
while (buffer < end)
{
if (!mask || *mask++)
{
*buffer = radial_compute_color (radial->a, b, c,
radial->inva,
radial->delta.radius,
radial->mindr,
&walker,
image->common.repeat);
}
b += db;
c += dc;
dc += ddc;
++buffer;
}
}
else
{
/* projective */
/* Warning:
* error propagation guarantees are much looser than in the affine case
*/
while (buffer < end)
{
if (!mask || *mask++)
{
if (v.vector[2] != 0)
{
double pdx, pdy, invv2, b, c;
invv2 = 1. * pixman_fixed_1 / v.vector[2];
pdx = v.vector[0] * invv2 - radial->c1.x;
/* / pixman_fixed_1 */
pdy = v.vector[1] * invv2 - radial->c1.y;
/* / pixman_fixed_1 */
b = fdot (pdx, pdy, radial->c1.radius,
radial->delta.x, radial->delta.y,
radial->delta.radius);
/* / pixman_fixed_1 / pixman_fixed_1 */
c = fdot (pdx, pdy, -radial->c1.radius,
pdx, pdy, radial->c1.radius);
/* / pixman_fixed_1 / pixman_fixed_1 */
*buffer = radial_compute_color (radial->a, b, c,
radial->inva,
radial->delta.radius,
radial->mindr,
&walker,
image->common.repeat);
}
else
{
*buffer = 0;
}
}
++buffer;
v.vector[0] += unit.vector[0];
v.vector[1] += unit.vector[1];
v.vector[2] += unit.vector[2];
}
}
iter->y++;
return iter->buffer;
}
static uint32_t *
radial_get_scanline_wide (pixman_iter_t *iter, const uint32_t *mask)
{
uint32_t *buffer = radial_get_scanline_narrow (iter, NULL);
pixman_expand_to_float (
(argb_t *)buffer, buffer, PIXMAN_a8r8g8b8, iter->width);
return buffer;
}
void
_pixman_radial_gradient_iter_init (pixman_image_t *image, pixman_iter_t *iter)
{
if (iter->iter_flags & ITER_NARROW)
iter->get_scanline = radial_get_scanline_narrow;
else
iter->get_scanline = radial_get_scanline_wide;
}
PIXMAN_EXPORT pixman_image_t *
pixman_image_create_radial_gradient (const pixman_point_fixed_t * inner,
const pixman_point_fixed_t * outer,
pixman_fixed_t inner_radius,
pixman_fixed_t outer_radius,
const pixman_gradient_stop_t *stops,
int n_stops)
{
pixman_image_t *image;
radial_gradient_t *radial;
image = _pixman_image_allocate ();
if (!image)
return NULL;
radial = &image->radial;
if (!_pixman_init_gradient (&radial->common, stops, n_stops))
{
free (image);
return NULL;
}
image->type = RADIAL;
radial->c1.x = inner->x;
radial->c1.y = inner->y;
radial->c1.radius = inner_radius;
radial->c2.x = outer->x;
radial->c2.y = outer->y;
radial->c2.radius = outer_radius;
/* warning: this computations may overflow */
radial->delta.x = radial->c2.x - radial->c1.x;
radial->delta.y = radial->c2.y - radial->c1.y;
radial->delta.radius = radial->c2.radius - radial->c1.radius;
/* computed exactly, then cast to double -> every bit of the double
representation is correct (53 bits) */
radial->a = dot (radial->delta.x, radial->delta.y, -radial->delta.radius,
radial->delta.x, radial->delta.y, radial->delta.radius);
if (radial->a != 0)
radial->inva = 1. * pixman_fixed_1 / radial->a;
radial->mindr = -1. * pixman_fixed_1 * radial->c1.radius;
return image;
}

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programs/develop/libraries/pixman/pixman-region.c
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programs/develop/libraries/pixman/pixman-region16.c
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/*
* Copyright © 2008 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
* Red Hat, Inc. not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Red Hat, Inc. makes no representations about the
* suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL RED HAT, INC. 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: Soren Sandmann <sandmann@redhat.com>
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#undef PIXMAN_DISABLE_DEPRECATED
#include "pixman-private.h"
#include <stdlib.h>
typedef pixman_box16_t box_type_t;
typedef pixman_region16_data_t region_data_type_t;
typedef pixman_region16_t region_type_t;
typedef int32_t overflow_int_t;
typedef struct {
int x, y;
} point_type_t;
#define PREFIX(x) pixman_region##x
#define PIXMAN_REGION_MAX INT16_MAX
#define PIXMAN_REGION_MIN INT16_MIN
#include "pixman-region.c"
/* This function exists only to make it possible to preserve the X ABI -
* it should go away at first opportunity.
*
* The problem is that the X ABI exports the three structs and has used
* them through macros. So the X server calls this function with
* the addresses of those structs which makes the existing code continue to
* work.
*/
PIXMAN_EXPORT void
pixman_region_set_static_pointers (pixman_box16_t *empty_box,
pixman_region16_data_t *empty_data,
pixman_region16_data_t *broken_data)
{
pixman_region_empty_box = empty_box;
pixman_region_empty_data = empty_data;
pixman_broken_data = broken_data;
}

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/*
* Copyright © 2008 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
* Red Hat, Inc. not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Red Hat, Inc. makes no representations about the
* suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL RED HAT, INC. 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: Soren Sandmann <sandmann@redhat.com>
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "pixman-private.h"
#include <stdlib.h>
typedef pixman_box32_t box_type_t;
typedef pixman_region32_data_t region_data_type_t;
typedef pixman_region32_t region_type_t;
typedef int64_t overflow_int_t;
typedef struct {
int x, y;
} point_type_t;
#define PREFIX(x) pixman_region32##x
#define PIXMAN_REGION_MAX INT32_MAX
#define PIXMAN_REGION_MIN INT32_MIN
#include "pixman-region.c"

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/*
* Copyright © 2000 SuSE, Inc.
* Copyright © 2007, 2009 Red Hat, Inc.
* Copyright © 2009 Soren Sandmann
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of SuSE not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. SuSE makes no representations about the
* suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE
* BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "pixman-private.h"
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 argb_t
color_to_float (const pixman_color_t *color)
{
argb_t result;
result.a = pixman_unorm_to_float (color->alpha, 16);
result.r = pixman_unorm_to_float (color->red, 16);
result.g = pixman_unorm_to_float (color->green, 16);
result.b = pixman_unorm_to_float (color->blue, 16);
return result;
}
PIXMAN_EXPORT pixman_image_t *
pixman_image_create_solid_fill (const pixman_color_t *color)
{
pixman_image_t *img = _pixman_image_allocate ();
if (!img)
return NULL;
img->type = SOLID;
img->solid.color = *color;
img->solid.color_32 = color_to_uint32 (color);
img->solid.color_float = color_to_float (color);
return img;
}

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programs/develop/libraries/pixman/pixman-timer.c
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/*
* 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 Red Hat not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. Red Hat makes no representations about the
* suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* RED HAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL RED HAT
* 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 <stdlib.h>
#include <stdio.h>
#include "pixman-private.h"
#ifdef PIXMAN_TIMERS
static pixman_timer_t *timers;
static void
dump_timers (void)
{
pixman_timer_t *timer;
for (timer = timers; timer != NULL; timer = timer->next)
{
printf ("%s: total: %llu n: %llu avg: %f\n",
timer->name,
timer->total,
timer->n_times,
timer->total / (double)timer->n_times);
}
}
void
pixman_timer_register (pixman_timer_t *timer)
{
static int initialized;
int atexit (void (*function)(void));
if (!initialized)
{
atexit (dump_timers);
initialized = 1;
}
timer->next = timers;
timers = timer;
}
#endif

711
programs/develop/libraries/pixman/pixman-trap.c
View File

@ -1,711 +0,0 @@
/*
* Copyright © 2002 Keith Packard, member of The XFree86 Project, Inc.
* Copyright © 2004 Keith Packard
*
* 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 Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL KEITH PACKARD 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 <stdio.h>
#include <stdlib.h>
#include "pixman-private.h"
/*
* Compute the smallest value greater than or equal to y which is on a
* grid row.
*/
PIXMAN_EXPORT pixman_fixed_t
pixman_sample_ceil_y (pixman_fixed_t y, int n)
{
pixman_fixed_t f = pixman_fixed_frac (y);
pixman_fixed_t i = pixman_fixed_floor (y);
f = DIV (f - Y_FRAC_FIRST (n) + (STEP_Y_SMALL (n) - pixman_fixed_e), STEP_Y_SMALL (n)) * STEP_Y_SMALL (n) +
Y_FRAC_FIRST (n);
if (f > Y_FRAC_LAST (n))
{
if (pixman_fixed_to_int (i) == 0x7fff)
{
f = 0xffff; /* saturate */
}
else
{
f = Y_FRAC_FIRST (n);
i += pixman_fixed_1;
}
}
return (i | f);
}
/*
* Compute the largest value strictly less than y which is on a
* grid row.
*/
PIXMAN_EXPORT pixman_fixed_t
pixman_sample_floor_y (pixman_fixed_t y,
int n)
{
pixman_fixed_t f = pixman_fixed_frac (y);
pixman_fixed_t i = pixman_fixed_floor (y);
f = DIV (f - pixman_fixed_e - Y_FRAC_FIRST (n), STEP_Y_SMALL (n)) * STEP_Y_SMALL (n) +
Y_FRAC_FIRST (n);
if (f < Y_FRAC_FIRST (n))
{
if (pixman_fixed_to_int (i) == 0x8000)
{
f = 0; /* saturate */
}
else
{
f = Y_FRAC_LAST (n);
i -= pixman_fixed_1;
}
}
return (i | f);
}
/*
* Step an edge by any amount (including negative values)
*/
PIXMAN_EXPORT void
pixman_edge_step (pixman_edge_t *e,
int n)
{
pixman_fixed_48_16_t ne;
e->x += n * e->stepx;
ne = e->e + n * (pixman_fixed_48_16_t) e->dx;
if (n >= 0)
{
if (ne > 0)
{
int nx = (ne + e->dy - 1) / e->dy;
e->e = ne - nx * (pixman_fixed_48_16_t) e->dy;
e->x += nx * e->signdx;
}
}
else
{
if (ne <= -e->dy)
{
int nx = (-ne) / e->dy;
e->e = ne + nx * (pixman_fixed_48_16_t) e->dy;
e->x -= nx * e->signdx;
}
}
}
/*
* A private routine to initialize the multi-step
* elements of an edge structure
*/
static void
_pixman_edge_multi_init (pixman_edge_t * e,
int n,
pixman_fixed_t *stepx_p,
pixman_fixed_t *dx_p)
{
pixman_fixed_t stepx;
pixman_fixed_48_16_t ne;
ne = n * (pixman_fixed_48_16_t) e->dx;
stepx = n * e->stepx;
if (ne > 0)
{
int nx = ne / e->dy;
ne -= nx * (pixman_fixed_48_16_t)e->dy;
stepx += nx * e->signdx;
}
*dx_p = ne;
*stepx_p = stepx;
}
/*
* Initialize one edge structure given the line endpoints and a
* starting y value
*/
PIXMAN_EXPORT void
pixman_edge_init (pixman_edge_t *e,
int n,
pixman_fixed_t y_start,
pixman_fixed_t x_top,
pixman_fixed_t y_top,
pixman_fixed_t x_bot,
pixman_fixed_t y_bot)
{
pixman_fixed_t dx, dy;
e->x = x_top;
e->e = 0;
dx = x_bot - x_top;
dy = y_bot - y_top;
e->dy = dy;
e->dx = 0;
if (dy)
{
if (dx >= 0)
{
e->signdx = 1;
e->stepx = dx / dy;
e->dx = dx % dy;
e->e = -dy;
}
else
{
e->signdx = -1;
e->stepx = -(-dx / dy);
e->dx = -dx % dy;
e->e = 0;
}
_pixman_edge_multi_init (e, STEP_Y_SMALL (n),
&e->stepx_small, &e->dx_small);
_pixman_edge_multi_init (e, STEP_Y_BIG (n),
&e->stepx_big, &e->dx_big);
}
pixman_edge_step (e, y_start - y_top);
}
/*
* Initialize one edge structure given a line, starting y value
* and a pixel offset for the line
*/
PIXMAN_EXPORT void
pixman_line_fixed_edge_init (pixman_edge_t * e,
int n,
pixman_fixed_t y,
const pixman_line_fixed_t *line,
int x_off,
int y_off)
{
pixman_fixed_t x_off_fixed = pixman_int_to_fixed (x_off);
pixman_fixed_t y_off_fixed = pixman_int_to_fixed (y_off);
const pixman_point_fixed_t *top, *bot;
if (line->p1.y <= line->p2.y)
{
top = &line->p1;
bot = &line->p2;
}
else
{
top = &line->p2;
bot = &line->p1;
}
pixman_edge_init (e, n, y,
top->x + x_off_fixed,
top->y + y_off_fixed,
bot->x + x_off_fixed,
bot->y + y_off_fixed);
}
PIXMAN_EXPORT void
pixman_add_traps (pixman_image_t * image,
int16_t x_off,
int16_t y_off,
int ntrap,
const pixman_trap_t *traps)
{
int bpp;
int height;
pixman_fixed_t x_off_fixed;
pixman_fixed_t y_off_fixed;
pixman_edge_t l, r;
pixman_fixed_t t, b;
_pixman_image_validate (image);
height = image->bits.height;
bpp = PIXMAN_FORMAT_BPP (image->bits.format);
x_off_fixed = pixman_int_to_fixed (x_off);
y_off_fixed = pixman_int_to_fixed (y_off);
while (ntrap--)
{
t = traps->top.y + y_off_fixed;
if (t < 0)
t = 0;
t = pixman_sample_ceil_y (t, bpp);
b = traps->bot.y + y_off_fixed;
if (pixman_fixed_to_int (b) >= height)
b = pixman_int_to_fixed (height) - 1;
b = pixman_sample_floor_y (b, bpp);
if (b >= t)
{
/* initialize edge walkers */
pixman_edge_init (&l, bpp, t,
traps->top.l + x_off_fixed,
traps->top.y + y_off_fixed,
traps->bot.l + x_off_fixed,
traps->bot.y + y_off_fixed);
pixman_edge_init (&r, bpp, t,
traps->top.r + x_off_fixed,
traps->top.y + y_off_fixed,
traps->bot.r + x_off_fixed,
traps->bot.y + y_off_fixed);
pixman_rasterize_edges (image, &l, &r, t, b);
}
traps++;
}
}
#if 0
static void
dump_image (pixman_image_t *image,
const char * title)
{
int i, j;
if (!image->type == BITS)
printf ("%s is not a regular image\n", title);
if (!image->bits.format == PIXMAN_a8)
printf ("%s is not an alpha mask\n", title);
printf ("\n\n\n%s: \n", title);
for (i = 0; i < image->bits.height; ++i)
{
uint8_t *line =
(uint8_t *)&(image->bits.bits[i * image->bits.rowstride]);
for (j = 0; j < image->bits.width; ++j)
printf ("%c", line[j] ? '#' : ' ');
printf ("\n");
}
}
#endif
PIXMAN_EXPORT void
pixman_add_trapezoids (pixman_image_t * image,
int16_t x_off,
int y_off,
int ntraps,
const pixman_trapezoid_t *traps)
{
int i;
#if 0
dump_image (image, "before");
#endif
for (i = 0; i < ntraps; ++i)
{
const pixman_trapezoid_t *trap = &(traps[i]);
if (!pixman_trapezoid_valid (trap))
continue;
pixman_rasterize_trapezoid (image, trap, x_off, y_off);
}
#if 0
dump_image (image, "after");
#endif
}
PIXMAN_EXPORT void
pixman_rasterize_trapezoid (pixman_image_t * image,
const pixman_trapezoid_t *trap,
int x_off,
int y_off)
{
int bpp;
int height;
pixman_fixed_t y_off_fixed;
pixman_edge_t l, r;
pixman_fixed_t t, b;
return_if_fail (image->type == BITS);
_pixman_image_validate (image);
if (!pixman_trapezoid_valid (trap))
return;
height = image->bits.height;
bpp = PIXMAN_FORMAT_BPP (image->bits.format);
y_off_fixed = pixman_int_to_fixed (y_off);
t = trap->top + y_off_fixed;
if (t < 0)
t = 0;
t = pixman_sample_ceil_y (t, bpp);
b = trap->bottom + y_off_fixed;
if (pixman_fixed_to_int (b) >= height)
b = pixman_int_to_fixed (height) - 1;
b = pixman_sample_floor_y (b, bpp);
if (b >= t)
{
/* initialize edge walkers */
pixman_line_fixed_edge_init (&l, bpp, t, &trap->left, x_off, y_off);
pixman_line_fixed_edge_init (&r, bpp, t, &trap->right, x_off, y_off);
pixman_rasterize_edges (image, &l, &r, t, b);
}
}
static const pixman_bool_t zero_src_has_no_effect[PIXMAN_N_OPERATORS] =
{
FALSE, /* Clear 0 0 */
FALSE, /* Src 1 0 */
TRUE, /* Dst 0 1 */
TRUE, /* Over 1 1-Aa */
TRUE, /* OverReverse 1-Ab 1 */
FALSE, /* In Ab 0 */
FALSE, /* InReverse 0 Aa */
FALSE, /* Out 1-Ab 0 */
TRUE, /* OutReverse 0 1-Aa */
TRUE, /* Atop Ab 1-Aa */
FALSE, /* AtopReverse 1-Ab Aa */
TRUE, /* Xor 1-Ab 1-Aa */
TRUE, /* Add 1 1 */
};
static pixman_bool_t
get_trap_extents (pixman_op_t op, pixman_image_t *dest,
const pixman_trapezoid_t *traps, int n_traps,
pixman_box32_t *box)
{
int i;
/* When the operator is such that a zero source has an
* effect on the underlying image, we have to
* composite across the entire destination
*/
if (!zero_src_has_no_effect [op])
{
box->x1 = 0;
box->y1 = 0;
box->x2 = dest->bits.width;
box->y2 = dest->bits.height;
return TRUE;
}
box->x1 = INT32_MAX;
box->y1 = INT32_MAX;
box->x2 = INT32_MIN;
box->y2 = INT32_MIN;
for (i = 0; i < n_traps; ++i)
{
const pixman_trapezoid_t *trap = &(traps[i]);
int y1, y2;
if (!pixman_trapezoid_valid (trap))
continue;
y1 = pixman_fixed_to_int (trap->top);
if (y1 < box->y1)
box->y1 = y1;
y2 = pixman_fixed_to_int (pixman_fixed_ceil (trap->bottom));
if (y2 > box->y2)
box->y2 = y2;
#define EXTEND_MIN(x) \
if (pixman_fixed_to_int ((x)) < box->x1) \
box->x1 = pixman_fixed_to_int ((x));
#define EXTEND_MAX(x) \
if (pixman_fixed_to_int (pixman_fixed_ceil ((x))) > box->x2) \
box->x2 = pixman_fixed_to_int (pixman_fixed_ceil ((x)));
#define EXTEND(x) \
EXTEND_MIN(x); \
EXTEND_MAX(x);
EXTEND(trap->left.p1.x);
EXTEND(trap->left.p2.x);
EXTEND(trap->right.p1.x);
EXTEND(trap->right.p2.x);
}
if (box->x1 >= box->x2 || box->y1 >= box->y2)
return FALSE;
return TRUE;
}
/*
* pixman_composite_trapezoids()
*
* All the trapezoids are conceptually rendered to an infinitely big image.
* The (0, 0) coordinates of this image are then aligned with the (x, y)
* coordinates of the source image, and then both images are aligned with
* the (x, y) coordinates of the destination. Then these three images are
* composited across the entire destination.
*/
PIXMAN_EXPORT void
pixman_composite_trapezoids (pixman_op_t op,
pixman_image_t * src,
pixman_image_t * dst,
pixman_format_code_t mask_format,
int x_src,
int y_src,
int x_dst,
int y_dst,
int n_traps,
const pixman_trapezoid_t * traps)
{
int i;
return_if_fail (PIXMAN_FORMAT_TYPE (mask_format) == PIXMAN_TYPE_A);
if (n_traps <= 0)
return;
_pixman_image_validate (src);
_pixman_image_validate (dst);
if (op == PIXMAN_OP_ADD &&
(src->common.flags & FAST_PATH_IS_OPAQUE) &&
(mask_format == dst->common.extended_format_code) &&
!(dst->common.have_clip_region))
{
for (i = 0; i < n_traps; ++i)
{
const pixman_trapezoid_t *trap = &(traps[i]);
if (!pixman_trapezoid_valid (trap))
continue;
pixman_rasterize_trapezoid (dst, trap, x_dst, y_dst);
}
}
else
{
pixman_image_t *tmp;
pixman_box32_t box;
int i;
if (!get_trap_extents (op, dst, traps, n_traps, &box))
return;
if (!(tmp = pixman_image_create_bits (
mask_format, box.x2 - box.x1, box.y2 - box.y1, NULL, -1)))
return;
for (i = 0; i < n_traps; ++i)
{
const pixman_trapezoid_t *trap = &(traps[i]);
if (!pixman_trapezoid_valid (trap))
continue;
pixman_rasterize_trapezoid (tmp, trap, - box.x1, - box.y1);
}
pixman_image_composite (op, src, tmp, dst,
x_src + box.x1, y_src + box.y1,
0, 0,
x_dst + box.x1, y_dst + box.y1,
box.x2 - box.x1, box.y2 - box.y1);
pixman_image_unref (tmp);
}
}
static int
greater_y (const pixman_point_fixed_t *a, const pixman_point_fixed_t *b)
{
if (a->y == b->y)
return a->x > b->x;
return a->y > b->y;
}
/*
* Note that the definition of this function is a bit odd because
* of the X coordinate space (y increasing downwards).
*/
static int
clockwise (const pixman_point_fixed_t *ref,
const pixman_point_fixed_t *a,
const pixman_point_fixed_t *b)
{
pixman_point_fixed_t ad, bd;
ad.x = a->x - ref->x;
ad.y = a->y - ref->y;
bd.x = b->x - ref->x;
bd.y = b->y - ref->y;
return ((pixman_fixed_32_32_t) bd.y * ad.x -
(pixman_fixed_32_32_t) ad.y * bd.x) < 0;
}
static void
triangle_to_trapezoids (const pixman_triangle_t *tri, pixman_trapezoid_t *traps)
{
const pixman_point_fixed_t *top, *left, *right, *tmp;
top = &tri->p1;
left = &tri->p2;
right = &tri->p3;
if (greater_y (top, left))
{
tmp = left;
left = top;
top = tmp;
}
if (greater_y (top, right))
{
tmp = right;
right = top;
top = tmp;
}
if (clockwise (top, right, left))
{
tmp = right;
right = left;
left = tmp;
}
/*
* Two cases:
*
* + +
* / \ / \
* / \ / \
* / + + \
* / -- -- \
* / -- -- \
* / --- --- \
* +-- --+
*/
traps->top = top->y;
traps->left.p1 = *top;
traps->left.p2 = *left;
traps->right.p1 = *top;
traps->right.p2 = *right;
if (right->y < left->y)
traps->bottom = right->y;
else
traps->bottom = left->y;
traps++;
*traps = *(traps - 1);
if (right->y < left->y)
{
traps->top = right->y;
traps->bottom = left->y;
traps->right.p1 = *right;
traps->right.p2 = *left;
}
else
{
traps->top = left->y;
traps->bottom = right->y;
traps->left.p1 = *left;
traps->left.p2 = *right;
}
}
static pixman_trapezoid_t *
convert_triangles (int n_tris, const pixman_triangle_t *tris)
{
pixman_trapezoid_t *traps;
int i;
if (n_tris <= 0)
return NULL;
traps = pixman_malloc_ab (n_tris, 2 * sizeof (pixman_trapezoid_t));
if (!traps)
return NULL;
for (i = 0; i < n_tris; ++i)
triangle_to_trapezoids (&(tris[i]), traps + 2 * i);
return traps;
}
PIXMAN_EXPORT void
pixman_composite_triangles (pixman_op_t op,
pixman_image_t * src,
pixman_image_t * dst,
pixman_format_code_t mask_format,
int x_src,
int y_src,
int x_dst,
int y_dst,
int n_tris,
const pixman_triangle_t * tris)
{
pixman_trapezoid_t *traps;
if ((traps = convert_triangles (n_tris, tris)))
{
pixman_composite_trapezoids (op, src, dst, mask_format,
x_src, y_src, x_dst, y_dst,
n_tris * 2, traps);
free (traps);
}
}
PIXMAN_EXPORT void
pixman_add_triangles (pixman_image_t *image,
int32_t x_off,
int32_t y_off,
int n_tris,
const pixman_triangle_t *tris)
{
pixman_trapezoid_t *traps;
if ((traps = convert_triangles (n_tris, tris)))
{
pixman_add_trapezoids (image, x_off, y_off,
n_tris * 2, traps);
free (traps);
}
}

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@ -1,310 +0,0 @@
/*
* Copyright © 2000 SuSE, Inc.
* Copyright © 1999 Keith Packard
*
* 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 <stdio.h>
#include <stdlib.h>
#include "pixman-private.h"
pixman_bool_t
_pixman_multiply_overflows_size (size_t a, size_t b)
{
return a >= SIZE_MAX / b;
}
pixman_bool_t
_pixman_multiply_overflows_int (unsigned int a, unsigned int b)
{
return a >= INT32_MAX / b;
}
pixman_bool_t
_pixman_addition_overflows_int (unsigned int a, unsigned int b)
{
return a > INT32_MAX - b;
}
void *
pixman_malloc_ab (unsigned int a,
unsigned int b)
{
if (a >= INT32_MAX / b)
return NULL;
return malloc (a * b);
}
void *
pixman_malloc_abc (unsigned int a,
unsigned int b,
unsigned int c)
{
if (a >= INT32_MAX / b)
return NULL;
else if (a * b >= INT32_MAX / c)
return NULL;
else
return malloc (a * b * c);
}
static force_inline uint16_t
float_to_unorm (float f, int n_bits)
{
uint32_t u;
if (f > 1.0)
f = 1.0;
if (f < 0.0)
f = 0.0;
u = f * (1 << n_bits);
u -= (u >> n_bits);
return u;
}
static force_inline float
unorm_to_float (uint16_t u, int n_bits)
{
uint32_t m = ((1 << n_bits) - 1);
return (u & m) * (1.f / (float)m);
}
/*
* This function expands images from a8r8g8b8 to argb_t. To preserve
* precision, it needs to know from which source format the a8r8g8b8 pixels
* originally came.
*
* For example, if the source was PIXMAN_x1r5g5b5 and the red component
* contained bits 12345, then the 8-bit value is 12345123. To correctly
* expand this to floating point, it should be 12345 / 31.0 and not
* 12345123 / 255.0.
*/
void
pixman_expand_to_float (argb_t *dst,
const uint32_t *src,
pixman_format_code_t format,
int width)
{
static const float multipliers[16] = {
0.0f,
1.0f / ((1 << 1) - 1),
1.0f / ((1 << 2) - 1),
1.0f / ((1 << 3) - 1),
1.0f / ((1 << 4) - 1),
1.0f / ((1 << 5) - 1),
1.0f / ((1 << 6) - 1),
1.0f / ((1 << 7) - 1),
1.0f / ((1 << 8) - 1),
1.0f / ((1 << 9) - 1),
1.0f / ((1 << 10) - 1),
1.0f / ((1 << 11) - 1),
1.0f / ((1 << 12) - 1),
1.0f / ((1 << 13) - 1),
1.0f / ((1 << 14) - 1),
1.0f / ((1 << 15) - 1),
};
int a_size, r_size, g_size, b_size;
int a_shift, r_shift, g_shift, b_shift;
float a_mul, r_mul, g_mul, b_mul;
uint32_t a_mask, r_mask, g_mask, b_mask;
int i;
if (!PIXMAN_FORMAT_VIS (format))
format = PIXMAN_a8r8g8b8;
/*
* Determine the sizes of each component and the masks and shifts
* required to extract them from the source pixel.
*/
a_size = PIXMAN_FORMAT_A (format);
r_size = PIXMAN_FORMAT_R (format);
g_size = PIXMAN_FORMAT_G (format);
b_size = PIXMAN_FORMAT_B (format);
a_shift = 32 - a_size;
r_shift = 24 - r_size;
g_shift = 16 - g_size;
b_shift = 8 - b_size;
a_mask = ((1 << a_size) - 1);
r_mask = ((1 << r_size) - 1);
g_mask = ((1 << g_size) - 1);
b_mask = ((1 << b_size) - 1);
a_mul = multipliers[a_size];
r_mul = multipliers[r_size];
g_mul = multipliers[g_size];
b_mul = multipliers[b_size];
/* Start at the end so that we can do the expansion in place
* when src == dst
*/
for (i = width - 1; i >= 0; i--)
{
const uint32_t pixel = src[i];
dst[i].a = a_mask? ((pixel >> a_shift) & a_mask) * a_mul : 1.0f;
dst[i].r = ((pixel >> r_shift) & r_mask) * r_mul;
dst[i].g = ((pixel >> g_shift) & g_mask) * g_mul;
dst[i].b = ((pixel >> b_shift) & b_mask) * b_mul;
}
}
uint16_t
pixman_float_to_unorm (float f, int n_bits)
{
return float_to_unorm (f, n_bits);
}
float
pixman_unorm_to_float (uint16_t u, int n_bits)
{
return unorm_to_float (u, n_bits);
}
void
pixman_contract_from_float (uint32_t *dst,
const argb_t *src,
int width)
{
int i;
for (i = 0; i < width; ++i)
{
uint8_t a, r, g, b;
a = float_to_unorm (src[i].a, 8);
r = float_to_unorm (src[i].r, 8);
g = float_to_unorm (src[i].g, 8);
b = float_to_unorm (src[i].b, 8);
dst[i] = (a << 24) | (r << 16) | (g << 8) | (b << 0);
}
}
uint32_t *
_pixman_iter_get_scanline_noop (pixman_iter_t *iter, const uint32_t *mask)
{
return iter->buffer;
}
#define N_TMP_BOXES (16)
pixman_bool_t
pixman_region16_copy_from_region32 (pixman_region16_t *dst,
pixman_region32_t *src)
{
int n_boxes, i;
pixman_box32_t *boxes32;
pixman_box16_t *boxes16;
pixman_bool_t retval;
boxes32 = pixman_region32_rectangles (src, &n_boxes);
boxes16 = pixman_malloc_ab (n_boxes, sizeof (pixman_box16_t));
if (!boxes16)
return FALSE;
for (i = 0; i < n_boxes; ++i)
{
boxes16[i].x1 = boxes32[i].x1;
boxes16[i].y1 = boxes32[i].y1;
boxes16[i].x2 = boxes32[i].x2;
boxes16[i].y2 = boxes32[i].y2;
}
pixman_region_fini (dst);
retval = pixman_region_init_rects (dst, boxes16, n_boxes);
free (boxes16);
return retval;
}
pixman_bool_t
pixman_region32_copy_from_region16 (pixman_region32_t *dst,
pixman_region16_t *src)
{
int n_boxes, i;
pixman_box16_t *boxes16;
pixman_box32_t *boxes32;
pixman_box32_t tmp_boxes[N_TMP_BOXES];
pixman_bool_t retval;
boxes16 = pixman_region_rectangles (src, &n_boxes);
if (n_boxes > N_TMP_BOXES)
boxes32 = pixman_malloc_ab (n_boxes, sizeof (pixman_box32_t));
else
boxes32 = tmp_boxes;
if (!boxes32)
return FALSE;
for (i = 0; i < n_boxes; ++i)
{
boxes32[i].x1 = boxes16[i].x1;
boxes32[i].y1 = boxes16[i].y1;
boxes32[i].x2 = boxes16[i].x2;
boxes32[i].y2 = boxes16[i].y2;
}
pixman_region32_fini (dst);
retval = pixman_region32_init_rects (dst, boxes32, n_boxes);
if (boxes32 != tmp_boxes)
free (boxes32);
return retval;
}
/* This function is exported for the sake of the test suite and not part
* of the ABI.
*/
PIXMAN_EXPORT pixman_implementation_t *
_pixman_internal_only_get_implementation (void)
{
return get_implementation ();
}
void
_pixman_log_error (const char *function, const char *message)
{
static int n_messages = 0;
if (n_messages < 10)
{
fprintf (stderr,
"*** BUG ***\n"
"In %s: %s\n"
"Set a breakpoint on '_pixman_log_error' to debug\n\n",
function, message);
n_messages++;
}
}

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programs/develop/libraries/pixman/pixman-version.h
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/*
* Copyright © 2008 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 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.
*
* Author: Carl D. Worth <cworth@cworth.org>
*/
#ifndef PIXMAN_VERSION_H__
#define PIXMAN_VERSION_H__
#ifndef PIXMAN_H__
# error pixman-version.h should only be included by pixman.h
#endif
#define PIXMAN_VERSION_MAJOR 0
#define PIXMAN_VERSION_MINOR 30
#define PIXMAN_VERSION_MICRO 2
#define PIXMAN_VERSION_STRING "0.30.2"
#define PIXMAN_VERSION_ENCODE(major, minor, micro) ( \
((major) * 10000) \
+ ((minor) * 100) \
+ ((micro) * 1))
#define PIXMAN_VERSION PIXMAN_VERSION_ENCODE( \
PIXMAN_VERSION_MAJOR, \
PIXMAN_VERSION_MINOR, \
PIXMAN_VERSION_MICRO)
#endif /* PIXMAN_VERSION_H__ */

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

1135
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programs/develop/libraries/pixman/pixman.h
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#include <stdio.h>
#include <stdlib.h>
#include <config.h>
#include "pixman-private.h"
#include "pixman.h"
#define FALSE 0
#define TRUE 1
/* Randomly decide between 32 and 16 bit
*
* Allocate bits with random width, stride and height
*
* Then make up some random offset (dx, dy)
*
* Then make an image with those values.
*
* Do this for both source and destination
*
* Composite them together using OVER.
*
* The bits in the source and the destination should have
* recognizable colors so that the result can be verified.
*
* Ie., walk the bits and verify that they have been composited.
*/
static int
get_rand (int bound)
{
return rand () % bound;
}
static pixman_image_t *
make_image (int width, int height, pixman_bool_t src, int *rx, int *ry)
{
pixman_format_code_t format;
pixman_image_t *image;
pixman_region32_t region;
uint8_t *bits;
int stride;
int bpp;
int dx, dy;
int i, j;
if (src)
format = PIXMAN_a8r8g8b8;
else
format = PIXMAN_r5g6b5;
bpp = PIXMAN_FORMAT_BPP (format) / 8;
stride = width + get_rand (width);
stride += (stride & 1); /* Make it an even number */
bits = malloc (height * stride * bpp);
for (j = 0; j < height; ++j)
{
for (i = 0; i < width; ++i)
{
uint8_t *pixel = bits + (stride * j + i) * bpp;
if (src)
*(uint32_t *)pixel = 0x7f00007f;
else
*(uint16_t *)pixel = 0xf100;
}
}
dx = dy = 0;
dx = get_rand (500);
dy = get_rand (500);
if (!src)
{
/* Now simulate the bogus X server translations */
bits -= (dy * stride + dx) * bpp;
}
image = pixman_image_create_bits (
format, width, height, (uint32_t *)bits, stride * bpp);
if (!src)
{
/* And add the bogus clip region */
pixman_region32_init_rect (&region, dx, dy, dx + width, dy + height);
pixman_image_set_clip_region32 (image, &region);
}
pixman_image_set_source_clipping (image, TRUE);
if (src)
{
pixman_transform_t trans;
pixman_transform_init_identity (&trans);
pixman_transform_translate (&trans,
NULL,
- pixman_int_to_fixed (width / 2),
- pixman_int_to_fixed (height / 2));
pixman_transform_scale (&trans,
NULL,
pixman_double_to_fixed (0.5),
pixman_double_to_fixed (0.5));
pixman_transform_translate (&trans,
NULL,
pixman_int_to_fixed (width / 2),
pixman_int_to_fixed (height / 2));
pixman_image_set_transform (image, &trans);
pixman_image_set_filter (image, PIXMAN_FILTER_BILINEAR, NULL, 0);
pixman_image_set_repeat (image, PIXMAN_REPEAT_PAD);
}
if (!src)
{
*rx = dx;
*ry = dy;
}
else
{
*rx = *ry = 0;
}
return image;
}
int
main ()
{
pixman_image_t *src, *dest;
int src_x, src_y, dest_x, dest_y;
int i, j;
int width = get_rand (499) + 1;
int height = get_rand (499) + 1;
src = make_image (width, height, TRUE, &src_x, &src_y);
dest = make_image (width, height, FALSE, &dest_x, &dest_y);
pixman_image_composite (
PIXMAN_OP_OVER, src, NULL, dest,
src_x, src_y,
-1, -1,
dest_x, dest_y,
width, height);
for (i = 0; i < height; ++i)
{
for (j = 0; j < width; ++j)
{
uint8_t *bits = (uint8_t *)dest->bits.bits;
int bpp = PIXMAN_FORMAT_BPP (dest->bits.format) / 8;
int stride = dest->bits.rowstride * 4;
uint8_t *pixel =
bits + (i + dest_y) * stride + (j + dest_x) * bpp;
if (*(uint16_t *)pixel != 0x788f)
{
printf ("bad pixel %x\n", *(uint16_t *)pixel);
assert (*(uint16_t *)pixel == 0x788f);
}
}
}
return 0;
}