Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

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

1 files changed, 1202 insertions, 0 deletions

diff --git a/gfx/cairo/libpixman/src/pixman-private.h b/gfx/cairo/libpixman/src/pixman-private.h
new file mode 100644
index 0000000000..0adf9fa067
--- /dev/null
+++ b/gfx/cairo/libpixman/src/pixman-private.h
@@ -0,0 +1,1202 @@
+#ifndef PIXMAN_PRIVATE_H
+#define PIXMAN_PRIVATE_H
+
+/*
+ * The defines which are shared between C and assembly code
+ */
+
+/* bilinear interpolation precision (must be <= 8) */
+#ifndef MOZILLA_VERSION
+#error "Need mozilla headers"
+#endif
+#ifdef MOZ_GFX_OPTIMIZE_MOBILE
+#define LOW_QUALITY_INTERPOLATION
+#define LOWER_QUALITY_INTERPOLATION
+#define BILINEAR_INTERPOLATION_BITS 4
+#else
+#define BILINEAR_INTERPOLATION_BITS 7
+#endif
+#define BILINEAR_INTERPOLATION_RANGE (1 << BILINEAR_INTERPOLATION_BITS)
+
+/*
+ * C specific part
+ */
+
+#ifndef __ASSEMBLER__
+
+#ifndef PACKAGE
+#  error config.h must be included before pixman-private.h
+#endif
+
+#define PIXMAN_DISABLE_DEPRECATED
+#define PIXMAN_USE_INTERNAL_API
+
+#include "pixman.h"
+#include <time.h>
+#include <assert.h>
+#include <stdio.h>
+#include <string.h>
+#include <stddef.h>
+#include <float.h>
+
+#include "pixman-compiler.h"
+
+/*
+ * Images
+ */
+typedef struct image_common image_common_t;
+typedef struct solid_fill solid_fill_t;
+typedef struct gradient gradient_t;
+typedef struct linear_gradient linear_gradient_t;
+typedef struct horizontal_gradient horizontal_gradient_t;
+typedef struct vertical_gradient vertical_gradient_t;
+typedef struct conical_gradient conical_gradient_t;
+typedef struct radial_gradient radial_gradient_t;
+typedef struct bits_image bits_image_t;
+typedef struct circle circle_t;
+
+typedef struct argb_t argb_t;
+
+struct argb_t
+{
+    float a;
+    float r;
+    float g;
+    float b;
+};
+
+typedef void (*fetch_scanline_t) (bits_image_t   *image,
+				  int             x,
+				  int             y,
+				  int             width,
+				  uint32_t       *buffer,
+				  const uint32_t *mask);
+
+typedef uint32_t (*fetch_pixel_32_t) (bits_image_t *image,
+				      int           x,
+				      int           y);
+
+typedef argb_t (*fetch_pixel_float_t) (bits_image_t *image,
+				       int           x,
+				       int           y);
+
+typedef void (*store_scanline_t) (bits_image_t *  image,
+				  int             x,
+				  int             y,
+				  int             width,
+				  const uint32_t *values);
+
+typedef enum
+{
+    BITS,
+    LINEAR,
+    CONICAL,
+    RADIAL,
+    SOLID
+} image_type_t;
+
+typedef void (*property_changed_func_t) (pixman_image_t *image);
+
+struct image_common
+{
+    image_type_t                type;
+    int32_t                     ref_count;
+    pixman_region32_t           clip_region;
+    int32_t			alpha_count;	    /* How many times this image is being used as an alpha map */
+    pixman_bool_t               have_clip_region;   /* FALSE if there is no clip */
+    pixman_bool_t               client_clip;        /* Whether the source clip was
+						       set by a client */
+    pixman_bool_t               clip_sources;       /* Whether the clip applies when
+						     * the image is used as a source
+						     */
+    pixman_bool_t		dirty;
+    pixman_transform_t *        transform;
+    pixman_repeat_t             repeat;
+    pixman_filter_t             filter;
+    pixman_fixed_t *            filter_params;
+    int                         n_filter_params;
+    bits_image_t *              alpha_map;
+    int                         alpha_origin_x;
+    int                         alpha_origin_y;
+    pixman_bool_t               component_alpha;
+    property_changed_func_t     property_changed;
+
+    pixman_image_destroy_func_t destroy_func;
+    void *                      destroy_data;
+
+    uint32_t			flags;
+    pixman_format_code_t	extended_format_code;
+};
+
+struct solid_fill
+{
+    image_common_t common;
+    pixman_color_t color;
+
+    uint32_t	   color_32;
+    argb_t	   color_float;
+};
+
+struct gradient
+{
+    image_common_t	    common;
+    int                     n_stops;
+    pixman_gradient_stop_t *stops;
+};
+
+struct linear_gradient
+{
+    gradient_t           common;
+    pixman_point_fixed_t p1;
+    pixman_point_fixed_t p2;
+};
+
+struct circle
+{
+    pixman_fixed_t x;
+    pixman_fixed_t y;
+    pixman_fixed_t radius;
+};
+
+struct radial_gradient
+{
+    gradient_t common;
+
+    circle_t   c1;
+    circle_t   c2;
+
+    circle_t   delta;
+    double     a;
+    double     inva;
+    double     mindr;
+};
+
+struct conical_gradient
+{
+    gradient_t           common;
+    pixman_point_fixed_t center;
+    double		 angle;
+};
+
+struct bits_image
+{
+    image_common_t             common;
+    pixman_format_code_t       format;
+    const pixman_indexed_t *   indexed;
+    int                        width;
+    int                        height;
+    uint32_t *                 bits;
+    uint32_t *                 free_me;
+    int                        rowstride;  /* in number of uint32_t's */
+
+    pixman_dither_t            dither;
+    uint32_t                   dither_offset_y;
+    uint32_t                   dither_offset_x;
+
+    fetch_scanline_t           fetch_scanline_32;
+    fetch_pixel_32_t	       fetch_pixel_32;
+    store_scanline_t           store_scanline_32;
+
+    fetch_scanline_t	       fetch_scanline_float;
+    fetch_pixel_float_t	       fetch_pixel_float;
+    store_scanline_t           store_scanline_float;
+
+    /* Used for indirect access to the bits */
+    pixman_read_memory_func_t  read_func;
+    pixman_write_memory_func_t write_func;
+};
+
+union pixman_image
+{
+    image_type_t       type;
+    image_common_t     common;
+    bits_image_t       bits;
+    gradient_t         gradient;
+    linear_gradient_t  linear;
+    conical_gradient_t conical;
+    radial_gradient_t  radial;
+    solid_fill_t       solid;
+};
+
+typedef struct pixman_iter_t pixman_iter_t;
+typedef uint32_t *(* pixman_iter_get_scanline_t) (pixman_iter_t *iter, const uint32_t *mask);
+typedef void      (* pixman_iter_write_back_t)   (pixman_iter_t *iter);
+typedef void	  (* pixman_iter_fini_t)	 (pixman_iter_t *iter);
+
+typedef enum
+{
+    ITER_NARROW =               (1 << 0),
+    ITER_WIDE =                 (1 << 1),
+
+    /* "Localized alpha" is when the alpha channel is used only to compute
+     * the alpha value of the destination. This means that the computation
+     * of the RGB values of the result is independent of the alpha value.
+     *
+     * For example, the OVER operator has localized alpha for the
+     * destination, because the RGB values of the result can be computed
+     * without knowing the destination alpha. Similarly, ADD has localized
+     * alpha for both source and destination because the RGB values of the
+     * result can be computed without knowing the alpha value of source or
+     * destination.
+     *
+     * When he destination is xRGB, this is useful knowledge, because then
+     * we can treat it as if it were ARGB, which means in some cases we can
+     * avoid copying it to a temporary buffer.
+     */
+    ITER_LOCALIZED_ALPHA =	(1 << 2),
+    ITER_IGNORE_ALPHA =		(1 << 3),
+    ITER_IGNORE_RGB =		(1 << 4),
+
+    /* These indicate whether the iterator is for a source
+     * or a destination image
+     */
+    ITER_SRC =			(1 << 5),
+    ITER_DEST =			(1 << 6)
+} iter_flags_t;
+
+struct pixman_iter_t
+{
+    /* These are initialized by _pixman_implementation_{src,dest}_init */
+    pixman_image_t *		image;
+    uint32_t *			buffer;
+    int				x, y;
+    int				width;
+    int				height;
+    iter_flags_t		iter_flags;
+    uint32_t			image_flags;
+
+    /* These function pointers are initialized by the implementation */
+    pixman_iter_get_scanline_t	get_scanline;
+    pixman_iter_write_back_t	write_back;
+    pixman_iter_fini_t          fini;
+
+    /* These fields are scratch data that implementations can use */
+    void *			data;
+    uint8_t *			bits;
+    int				stride;
+};
+
+typedef struct pixman_iter_info_t pixman_iter_info_t;
+typedef void (* pixman_iter_initializer_t) (pixman_iter_t *iter,
+                                            const pixman_iter_info_t *info);
+struct pixman_iter_info_t
+{
+    pixman_format_code_t	format;
+    uint32_t			image_flags;
+    iter_flags_t		iter_flags;
+    pixman_iter_initializer_t	initializer;
+    pixman_iter_get_scanline_t	get_scanline;
+    pixman_iter_write_back_t	write_back;
+};
+
+void
+_pixman_bits_image_setup_accessors (bits_image_t *image);
+
+void
+_pixman_bits_image_src_iter_init (pixman_image_t *image, pixman_iter_t *iter);
+
+void
+_pixman_bits_image_dest_iter_init (pixman_image_t *image, pixman_iter_t *iter);
+
+void
+_pixman_linear_gradient_iter_init (pixman_image_t *image, pixman_iter_t  *iter);
+
+void
+_pixman_radial_gradient_iter_init (pixman_image_t *image, pixman_iter_t *iter);
+
+void
+_pixman_conical_gradient_iter_init (pixman_image_t *image, pixman_iter_t *iter);
+
+void
+_pixman_image_init (pixman_image_t *image);
+
+pixman_bool_t
+_pixman_bits_image_init (pixman_image_t *     image,
+                         pixman_format_code_t format,
+                         int                  width,
+                         int                  height,
+                         uint32_t *           bits,
+                         int                  rowstride,
+			 pixman_bool_t	      clear);
+pixman_bool_t
+_pixman_image_fini (pixman_image_t *image);
+
+pixman_image_t *
+_pixman_image_allocate (void);
+
+pixman_bool_t
+_pixman_init_gradient (gradient_t *                  gradient,
+                       const pixman_gradient_stop_t *stops,
+                       int                           n_stops);
+void
+_pixman_image_reset_clip_region (pixman_image_t *image);
+
+void
+_pixman_image_validate (pixman_image_t *image);
+
+#define PIXMAN_IMAGE_GET_LINE(image, x, y, type, out_stride, line, mul)	\
+    do									\
+    {									\
+	uint32_t *__bits__;						\
+	int       __stride__;						\
+        								\
+	__bits__ = image->bits.bits;					\
+	__stride__ = image->bits.rowstride;				\
+	(out_stride) =							\
+	    __stride__ * (int) sizeof (uint32_t) / (int) sizeof (type);	\
+	(line) =							\
+	    ((type *) __bits__) + (out_stride) * (y) + (mul) * (x);	\
+    } while (0)
+
+/*
+ * Gradient walker
+ */
+typedef struct
+{
+    float		    a_s, a_b;
+    float		    r_s, r_b;
+    float		    g_s, g_b;
+    float		    b_s, b_b;
+    pixman_fixed_48_16_t    left_x;
+    pixman_fixed_48_16_t    right_x;
+
+    pixman_gradient_stop_t *stops;
+    int                     num_stops;
+    pixman_repeat_t	    repeat;
+
+    pixman_bool_t           need_reset;
+} pixman_gradient_walker_t;
+
+void
+_pixman_gradient_walker_init (pixman_gradient_walker_t *walker,
+                              gradient_t *              gradient,
+			      pixman_repeat_t           repeat);
+
+void
+_pixman_gradient_walker_reset (pixman_gradient_walker_t *walker,
+                               pixman_fixed_48_16_t      pos);
+
+typedef void (*pixman_gradient_walker_write_t) (
+    pixman_gradient_walker_t *walker,
+    pixman_fixed_48_16_t      x,
+    uint32_t                 *buffer);
+
+void
+_pixman_gradient_walker_write_narrow(pixman_gradient_walker_t *walker,
+				     pixman_fixed_48_16_t      x,
+				     uint32_t                 *buffer);
+
+void
+_pixman_gradient_walker_write_wide(pixman_gradient_walker_t *walker,
+				   pixman_fixed_48_16_t      x,
+				   uint32_t                 *buffer);
+
+typedef void (*pixman_gradient_walker_fill_t) (
+    pixman_gradient_walker_t *walker,
+    pixman_fixed_48_16_t      x,
+    uint32_t                 *buffer,
+    uint32_t                 *end);
+
+void
+_pixman_gradient_walker_fill_narrow(pixman_gradient_walker_t *walker,
+				    pixman_fixed_48_16_t      x,
+				    uint32_t                 *buffer,
+				    uint32_t                 *end);
+
+void
+_pixman_gradient_walker_fill_wide(pixman_gradient_walker_t *walker,
+				  pixman_fixed_48_16_t      x,
+				  uint32_t                 *buffer,
+				  uint32_t                 *end);
+
+/*
+ * Edges
+ */
+
+#define MAX_ALPHA(n)    ((1 << (n)) - 1)
+#define N_Y_FRAC(n)     ((n) == 1 ? 1 : (1 << ((n) / 2)) - 1)
+#define N_X_FRAC(n)     ((n) == 1 ? 1 : (1 << ((n) / 2)) + 1)
+
+#define STEP_Y_SMALL(n) (pixman_fixed_1 / N_Y_FRAC (n))
+#define STEP_Y_BIG(n)   (pixman_fixed_1 - (N_Y_FRAC (n) - 1) * STEP_Y_SMALL (n))
+
+#define Y_FRAC_FIRST(n) (STEP_Y_BIG (n) / 2)
+#define Y_FRAC_LAST(n)  (Y_FRAC_FIRST (n) + (N_Y_FRAC (n) - 1) * STEP_Y_SMALL (n))
+
+#define STEP_X_SMALL(n) (pixman_fixed_1 / N_X_FRAC (n))
+#define STEP_X_BIG(n)   (pixman_fixed_1 - (N_X_FRAC (n) - 1) * STEP_X_SMALL (n))
+
+#define X_FRAC_FIRST(n) (STEP_X_BIG (n) / 2)
+#define X_FRAC_LAST(n)  (X_FRAC_FIRST (n) + (N_X_FRAC (n) - 1) * STEP_X_SMALL (n))
+
+#define RENDER_SAMPLES_X(x, n)						\
+    ((n) == 1? 0 : (pixman_fixed_frac (x) +				\
+		    X_FRAC_FIRST (n)) / STEP_X_SMALL (n))
+
+void
+pixman_rasterize_edges_accessors (pixman_image_t *image,
+                                  pixman_edge_t * l,
+                                  pixman_edge_t * r,
+                                  pixman_fixed_t  t,
+                                  pixman_fixed_t  b);
+
+/*
+ * Implementations
+ */
+typedef struct pixman_implementation_t pixman_implementation_t;
+
+typedef struct
+{
+    pixman_op_t              op;
+    pixman_image_t *         src_image;
+    pixman_image_t *         mask_image;
+    pixman_image_t *         dest_image;
+    int32_t                  src_x;
+    int32_t                  src_y;
+    int32_t                  mask_x;
+    int32_t                  mask_y;
+    int32_t                  dest_x;
+    int32_t                  dest_y;
+    int32_t                  width;
+    int32_t                  height;
+
+    uint32_t                 src_flags;
+    uint32_t                 mask_flags;
+    uint32_t                 dest_flags;
+} pixman_composite_info_t;
+
+#define PIXMAN_COMPOSITE_ARGS(info)					\
+    MAYBE_UNUSED pixman_op_t        op = info->op;			\
+    MAYBE_UNUSED pixman_image_t *   src_image = info->src_image;	\
+    MAYBE_UNUSED pixman_image_t *   mask_image = info->mask_image;	\
+    MAYBE_UNUSED pixman_image_t *   dest_image = info->dest_image;	\
+    MAYBE_UNUSED int32_t            src_x = info->src_x;		\
+    MAYBE_UNUSED int32_t            src_y = info->src_y;		\
+    MAYBE_UNUSED int32_t            mask_x = info->mask_x;		\
+    MAYBE_UNUSED int32_t            mask_y = info->mask_y;		\
+    MAYBE_UNUSED int32_t            dest_x = info->dest_x;		\
+    MAYBE_UNUSED int32_t            dest_y = info->dest_y;		\
+    MAYBE_UNUSED int32_t            width = info->width;		\
+    MAYBE_UNUSED int32_t            height = info->height
+
+typedef void (*pixman_combine_32_func_t) (pixman_implementation_t *imp,
+					  pixman_op_t              op,
+					  uint32_t *               dest,
+					  const uint32_t *         src,
+					  const uint32_t *         mask,
+					  int                      width);
+
+typedef void (*pixman_combine_float_func_t) (pixman_implementation_t *imp,
+					     pixman_op_t	      op,
+					     float *		      dest,
+					     const float *	      src,
+					     const float *	      mask,
+					     int		      n_pixels);
+
+typedef void (*pixman_composite_func_t) (pixman_implementation_t *imp,
+					 pixman_composite_info_t *info);
+typedef pixman_bool_t (*pixman_blt_func_t) (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);
+typedef pixman_bool_t (*pixman_fill_func_t) (pixman_implementation_t *imp,
+					     uint32_t *               bits,
+					     int                      stride,
+					     int                      bpp,
+					     int                      x,
+					     int                      y,
+					     int                      width,
+					     int                      height,
+					     uint32_t                 filler);
+
+void _pixman_setup_combiner_functions_32 (pixman_implementation_t *imp);
+void _pixman_setup_combiner_functions_float (pixman_implementation_t *imp);
+
+typedef struct
+{
+    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_composite_func_t func;
+} pixman_fast_path_t;
+
+struct pixman_implementation_t
+{
+    pixman_implementation_t *	toplevel;
+    pixman_implementation_t *	fallback;
+    const pixman_fast_path_t *	fast_paths;
+    const pixman_iter_info_t *  iter_info;
+
+    pixman_blt_func_t		blt;
+    pixman_fill_func_t		fill;
+
+    pixman_combine_32_func_t	combine_32[PIXMAN_N_OPERATORS];
+    pixman_combine_32_func_t	combine_32_ca[PIXMAN_N_OPERATORS];
+    pixman_combine_float_func_t	combine_float[PIXMAN_N_OPERATORS];
+    pixman_combine_float_func_t	combine_float_ca[PIXMAN_N_OPERATORS];
+};
+
+uint32_t
+_pixman_image_get_solid (pixman_implementation_t *imp,
+			 pixman_image_t *         image,
+                         pixman_format_code_t     format);
+
+pixman_implementation_t *
+_pixman_implementation_create (pixman_implementation_t *fallback,
+			       const pixman_fast_path_t *fast_paths);
+
+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_combine_32_func_t
+_pixman_implementation_lookup_combiner (pixman_implementation_t *imp,
+					pixman_op_t		 op,
+					pixman_bool_t		 component_alpha,
+					pixman_bool_t		 wide);
+
+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);
+
+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);
+
+void
+_pixman_implementation_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                   flags,
+                                  uint32_t                       image_flags);
+
+/* Specific implementations */
+pixman_implementation_t *
+_pixman_implementation_create_general (void);
+
+pixman_implementation_t *
+_pixman_implementation_create_fast_path (pixman_implementation_t *fallback);
+
+pixman_implementation_t *
+_pixman_implementation_create_noop (pixman_implementation_t *fallback);
+
+#if defined USE_X86_MMX || defined USE_ARM_IWMMXT || defined USE_LOONGSON_MMI
+pixman_implementation_t *
+_pixman_implementation_create_mmx (pixman_implementation_t *fallback);
+#endif
+
+#ifdef USE_SSE2
+pixman_implementation_t *
+_pixman_implementation_create_sse2 (pixman_implementation_t *fallback);
+#endif
+
+#ifdef USE_SSSE3
+pixman_implementation_t *
+_pixman_implementation_create_ssse3 (pixman_implementation_t *fallback);
+#endif
+
+#ifdef USE_ARM_SIMD
+pixman_implementation_t *
+_pixman_implementation_create_arm_simd (pixman_implementation_t *fallback);
+#endif
+
+#ifdef USE_ARM_NEON
+pixman_implementation_t *
+_pixman_implementation_create_arm_neon (pixman_implementation_t *fallback);
+#endif
+
+#ifdef USE_ARM_A64_NEON
+pixman_implementation_t *
+_pixman_implementation_create_arm_neon (pixman_implementation_t *fallback);
+#endif
+
+#ifdef USE_MIPS_DSPR2
+pixman_implementation_t *
+_pixman_implementation_create_mips_dspr2 (pixman_implementation_t *fallback);
+#endif
+
+#ifdef USE_VMX
+pixman_implementation_t *
+_pixman_implementation_create_vmx (pixman_implementation_t *fallback);
+#endif
+
+pixman_bool_t
+_pixman_implementation_disabled (const char *name);
+
+pixman_implementation_t *
+_pixman_x86_get_implementations (pixman_implementation_t *imp);
+
+pixman_implementation_t *
+_pixman_arm_get_implementations (pixman_implementation_t *imp);
+
+pixman_implementation_t *
+_pixman_ppc_get_implementations (pixman_implementation_t *imp);
+
+pixman_implementation_t *
+_pixman_mips_get_implementations (pixman_implementation_t *imp);
+
+pixman_implementation_t *
+_pixman_choose_implementation (void);
+
+pixman_bool_t
+_pixman_disabled (const char *name);
+
+
+/*
+ * Utilities
+ */
+pixman_bool_t
+_pixman_compute_composite_region32 (pixman_region32_t * region,
+				    pixman_image_t *    src_image,
+				    pixman_image_t *    mask_image,
+				    pixman_image_t *    dest_image,
+				    int32_t             src_x,
+				    int32_t             src_y,
+				    int32_t             mask_x,
+				    int32_t             mask_y,
+				    int32_t             dest_x,
+				    int32_t             dest_y,
+				    int32_t             width,
+				    int32_t             height);
+uint32_t *
+_pixman_iter_get_scanline_noop (pixman_iter_t *iter, const uint32_t *mask);
+
+void
+_pixman_iter_init_bits_stride (pixman_iter_t *iter, const pixman_iter_info_t *info);
+
+/* These "formats" all have depth 0, so they
+ * will never clash with any real ones
+ */
+#define PIXMAN_null             PIXMAN_FORMAT (0, 0, 0, 0, 0, 0)
+#define PIXMAN_solid            PIXMAN_FORMAT (0, 1, 0, 0, 0, 0)
+#define PIXMAN_pixbuf		PIXMAN_FORMAT (0, 2, 0, 0, 0, 0)
+#define PIXMAN_rpixbuf		PIXMAN_FORMAT (0, 3, 0, 0, 0, 0)
+#define PIXMAN_unknown		PIXMAN_FORMAT (0, 4, 0, 0, 0, 0)
+#define PIXMAN_any		PIXMAN_FORMAT (0, 5, 0, 0, 0, 0)
+
+#define PIXMAN_OP_any		(PIXMAN_N_OPERATORS + 1)
+
+#define FAST_PATH_ID_TRANSFORM			(1 <<  0)
+#define FAST_PATH_NO_ALPHA_MAP			(1 <<  1)
+#define FAST_PATH_NO_CONVOLUTION_FILTER		(1 <<  2)
+#define FAST_PATH_NO_PAD_REPEAT			(1 <<  3)
+#define FAST_PATH_NO_REFLECT_REPEAT		(1 <<  4)
+#define FAST_PATH_NO_ACCESSORS			(1 <<  5)
+#define FAST_PATH_NARROW_FORMAT			(1 <<  6)
+#define FAST_PATH_COMPONENT_ALPHA		(1 <<  8)
+#define FAST_PATH_SAMPLES_OPAQUE		(1 <<  7)
+#define FAST_PATH_UNIFIED_ALPHA			(1 <<  9)
+#define FAST_PATH_SCALE_TRANSFORM		(1 << 10)
+#define FAST_PATH_NEAREST_FILTER		(1 << 11)
+#define FAST_PATH_HAS_TRANSFORM			(1 << 12)
+#define FAST_PATH_IS_OPAQUE			(1 << 13)
+#define FAST_PATH_NO_NORMAL_REPEAT		(1 << 14)
+#define FAST_PATH_NO_NONE_REPEAT		(1 << 15)
+#define FAST_PATH_X_UNIT_POSITIVE		(1 << 16)
+#define FAST_PATH_AFFINE_TRANSFORM		(1 << 17)
+#define FAST_PATH_Y_UNIT_ZERO			(1 << 18)
+#define FAST_PATH_BILINEAR_FILTER		(1 << 19)
+#define FAST_PATH_ROTATE_90_TRANSFORM		(1 << 20)
+#define FAST_PATH_ROTATE_180_TRANSFORM		(1 << 21)
+#define FAST_PATH_ROTATE_270_TRANSFORM		(1 << 22)
+#define FAST_PATH_SAMPLES_COVER_CLIP_NEAREST	(1 << 23)
+#define FAST_PATH_SAMPLES_COVER_CLIP_BILINEAR	(1 << 24)
+#define FAST_PATH_BITS_IMAGE			(1 << 25)
+#define FAST_PATH_SEPARABLE_CONVOLUTION_FILTER  (1 << 26)
+
+#define FAST_PATH_PAD_REPEAT						\
+    (FAST_PATH_NO_NONE_REPEAT		|				\
+     FAST_PATH_NO_NORMAL_REPEAT		|				\
+     FAST_PATH_NO_REFLECT_REPEAT)
+
+#define FAST_PATH_NORMAL_REPEAT						\
+    (FAST_PATH_NO_NONE_REPEAT		|				\
+     FAST_PATH_NO_PAD_REPEAT		|				\
+     FAST_PATH_NO_REFLECT_REPEAT)
+
+#define FAST_PATH_NONE_REPEAT						\
+    (FAST_PATH_NO_NORMAL_REPEAT		|				\
+     FAST_PATH_NO_PAD_REPEAT		|				\
+     FAST_PATH_NO_REFLECT_REPEAT)
+
+#define FAST_PATH_REFLECT_REPEAT					\
+    (FAST_PATH_NO_NONE_REPEAT		|				\
+     FAST_PATH_NO_NORMAL_REPEAT		|				\
+     FAST_PATH_NO_PAD_REPEAT)
+
+#define FAST_PATH_STANDARD_FLAGS					\
+    (FAST_PATH_NO_CONVOLUTION_FILTER	|				\
+     FAST_PATH_NO_ACCESSORS		|				\
+     FAST_PATH_NO_ALPHA_MAP		|				\
+     FAST_PATH_NARROW_FORMAT)
+
+#define FAST_PATH_STD_DEST_FLAGS					\
+    (FAST_PATH_NO_ACCESSORS		|				\
+     FAST_PATH_NO_ALPHA_MAP		|				\
+     FAST_PATH_NARROW_FORMAT)
+
+#define SOURCE_FLAGS(format)						\
+    (FAST_PATH_STANDARD_FLAGS |						\
+     ((PIXMAN_ ## format == PIXMAN_solid) ?				\
+      0 : (FAST_PATH_SAMPLES_COVER_CLIP_NEAREST | FAST_PATH_NEAREST_FILTER | FAST_PATH_ID_TRANSFORM)))
+
+#define MASK_FLAGS(format, extra)					\
+    ((PIXMAN_ ## format == PIXMAN_null) ? 0 : (SOURCE_FLAGS (format) | extra))
+
+#define FAST_PATH(op, src, src_flags, mask, mask_flags, dest, dest_flags, func) \
+    PIXMAN_OP_ ## op,							\
+    PIXMAN_ ## src,							\
+    src_flags,							        \
+    PIXMAN_ ## mask,						        \
+    mask_flags,							        \
+    PIXMAN_ ## dest,	                                                \
+    dest_flags,							        \
+    func
+
+#define PIXMAN_STD_FAST_PATH(op, src, mask, dest, func)			\
+    { FAST_PATH (							\
+	    op,								\
+	    src,  SOURCE_FLAGS (src),					\
+	    mask, MASK_FLAGS (mask, FAST_PATH_UNIFIED_ALPHA),		\
+	    dest, FAST_PATH_STD_DEST_FLAGS,				\
+	    func) }
+
+#define PIXMAN_STD_FAST_PATH_CA(op, src, mask, dest, func)		\
+    { FAST_PATH (							\
+	    op,								\
+	    src,  SOURCE_FLAGS (src),					\
+	    mask, MASK_FLAGS (mask, FAST_PATH_COMPONENT_ALPHA),		\
+	    dest, FAST_PATH_STD_DEST_FLAGS,				\
+	    func) }
+
+extern pixman_implementation_t *global_implementation;
+
+static force_inline pixman_implementation_t *
+get_implementation (void)
+{
+#ifndef TOOLCHAIN_SUPPORTS_ATTRIBUTE_CONSTRUCTOR
+    if (!global_implementation)
+	global_implementation = _pixman_choose_implementation ();
+#endif
+    return global_implementation;
+}
+
+/* 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);
+
+/* Memory allocation helpers */
+void *
+pixman_malloc_ab (unsigned int n, unsigned int b);
+
+void *
+pixman_malloc_abc (unsigned int a, unsigned int b, unsigned int c);
+
+void *
+pixman_malloc_ab_plus_c (unsigned int a, unsigned int b, unsigned int c);
+
+pixman_bool_t
+_pixman_multiply_overflows_size (size_t a, size_t b);
+
+pixman_bool_t
+_pixman_multiply_overflows_int (unsigned int a, unsigned int b);
+
+pixman_bool_t
+_pixman_addition_overflows_int (unsigned int a, unsigned int b);
+
+/* Compositing utilities */
+void
+pixman_expand_to_float (argb_t               *dst,
+			const uint32_t       *src,
+			pixman_format_code_t  format,
+			int                   width);
+
+void
+pixman_contract_from_float (uint32_t     *dst,
+			    const argb_t *src,
+			    int           width);
+
+/* Region Helpers */
+pixman_bool_t
+pixman_region32_copy_from_region16 (pixman_region32_t *dst,
+                                    pixman_region16_t *src);
+
+pixman_bool_t
+pixman_region16_copy_from_region32 (pixman_region16_t *dst,
+                                    pixman_region32_t *src);
+
+/* Doubly linked lists */
+typedef struct pixman_link_t pixman_link_t;
+struct pixman_link_t
+{
+    pixman_link_t *next;
+    pixman_link_t *prev;
+};
+
+typedef struct pixman_list_t pixman_list_t;
+struct pixman_list_t
+{
+    pixman_link_t *head;
+    pixman_link_t *tail;
+};
+
+static force_inline void
+pixman_list_init (pixman_list_t *list)
+{
+    list->head = (pixman_link_t *)list;
+    list->tail = (pixman_link_t *)list;
+}
+
+static force_inline void
+pixman_list_prepend (pixman_list_t *list, pixman_link_t *link)
+{
+    link->next = list->head;
+    link->prev = (pixman_link_t *)list;
+    list->head->prev = link;
+    list->head = link;
+}
+
+static force_inline void
+pixman_list_unlink (pixman_link_t *link)
+{
+    link->prev->next = link->next;
+    link->next->prev = link->prev;
+}
+
+static force_inline void
+pixman_list_move_to_front (pixman_list_t *list, pixman_link_t *link)
+{
+    pixman_list_unlink (link);
+    pixman_list_prepend (list, link);
+}
+
+/* Misc macros */
+
+#ifndef FALSE
+#   define FALSE 0
+#endif
+
+#ifndef TRUE
+#   define TRUE 1
+#endif
+
+#ifndef MIN
+#  define MIN(a, b) ((a < b) ? a : b)
+#endif
+
+#ifndef MAX
+#  define MAX(a, b) ((a > b) ? a : b)
+#endif
+
+/* Integer division that rounds towards -infinity */
+#define DIV(a, b)					   \
+    ((((a) < 0) == ((b) < 0)) ? (a) / (b) :                \
+     ((a) - (b) + 1 - (((b) < 0) << 1)) / (b))
+
+/* Modulus that produces the remainder wrt. DIV */
+#define MOD(a, b) ((a) < 0 ? ((b) - ((-(a) - 1) % (b))) - 1 : (a) % (b))
+
+#define CLIP(v, low, high) ((v) < (low) ? (low) : ((v) > (high) ? (high) : (v)))
+
+#define FLOAT_IS_ZERO(f)     (-FLT_MIN < (f) && (f) < FLT_MIN)
+
+/* Conversion between 8888 and 0565 */
+
+static force_inline uint16_t
+convert_8888_to_0565 (uint32_t s)
+{
+    /* The following code can be compiled into just 4 instructions on ARM */
+    uint32_t a, b;
+    a = (s >> 3) & 0x1F001F;
+    b = s & 0xFC00;
+    a |= a >> 5;
+    a |= b >> 5;
+    return (uint16_t)a;
+}
+
+static force_inline uint32_t
+convert_0565_to_0888 (uint16_t s)
+{
+    return (((((s) << 3) & 0xf8) | (((s) >> 2) & 0x7)) |
+            ((((s) << 5) & 0xfc00) | (((s) >> 1) & 0x300)) |
+            ((((s) << 8) & 0xf80000) | (((s) << 3) & 0x70000)));
+}
+
+static force_inline uint32_t
+convert_0565_to_8888 (uint16_t s)
+{
+    return convert_0565_to_0888 (s) | 0xff000000;
+}
+
+/* Trivial versions that are useful in macros */
+
+static force_inline uint32_t
+convert_8888_to_8888 (uint32_t s)
+{
+    return s;
+}
+
+static force_inline uint32_t
+convert_x888_to_8888 (uint32_t s)
+{
+    return s | 0xff000000;
+}
+
+static force_inline uint16_t
+convert_0565_to_0565 (uint16_t s)
+{
+    return s;
+}
+
+#define PIXMAN_FORMAT_IS_WIDE(f)					\
+    (PIXMAN_FORMAT_A (f) > 8 ||						\
+     PIXMAN_FORMAT_R (f) > 8 ||						\
+     PIXMAN_FORMAT_G (f) > 8 ||						\
+     PIXMAN_FORMAT_B (f) > 8 ||						\
+     PIXMAN_FORMAT_TYPE (f) == PIXMAN_TYPE_ARGB_SRGB)
+
+#ifdef WORDS_BIGENDIAN
+#   define SCREEN_SHIFT_LEFT(x,n)	((x) << (n))
+#   define SCREEN_SHIFT_RIGHT(x,n)	((x) >> (n))
+#else
+#   define SCREEN_SHIFT_LEFT(x,n)	((x) >> (n))
+#   define SCREEN_SHIFT_RIGHT(x,n)	((x) << (n))
+#endif
+
+static force_inline uint32_t
+unorm_to_unorm (uint32_t val, int from_bits, int to_bits)
+{
+    uint32_t result;
+
+    if (from_bits == 0)
+	return 0;
+
+    /* Delete any extra bits */
+    val &= ((1 << from_bits) - 1);
+
+    if (from_bits >= to_bits)
+	return val >> (from_bits - to_bits);
+
+    /* Start out with the high bit of val in the high bit of result. */
+    result = val << (to_bits - from_bits);
+
+    /* Copy the bits in result, doubling the number of bits each time, until
+     * we fill all to_bits. Unrolled manually because from_bits and to_bits
+     * are usually known statically, so the compiler can turn all of this
+     * into a few shifts.
+     */
+#define REPLICATE()							\
+    do									\
+    {									\
+	if (from_bits < to_bits)					\
+	{								\
+	    result |= result >> from_bits;				\
+									\
+	    from_bits *= 2;						\
+	}								\
+    }									\
+    while (0)
+
+    REPLICATE();
+    REPLICATE();
+    REPLICATE();
+    REPLICATE();
+    REPLICATE();
+
+    return result;
+}
+
+uint16_t pixman_float_to_unorm (float f, int n_bits);
+float pixman_unorm_to_float (uint16_t u, int n_bits);
+
+/*
+ * Various debugging code
+ */
+
+#undef DEBUG
+
+#define COMPILE_TIME_ASSERT(x)						\
+    do { typedef int compile_time_assertion [(x)?1:-1]; } while (0)
+
+/* Turn on debugging depending on what type of release this is
+ */
+#if (((PIXMAN_VERSION_MICRO % 2) == 0) && ((PIXMAN_VERSION_MINOR % 2) == 1))
+
+/* Debugging gets turned on for development releases because these
+ * are the things that end up in bleeding edge distributions such
+ * as Rawhide etc.
+ *
+ * For performance reasons we don't turn it on for stable releases or
+ * random git checkouts. (Random git checkouts are often used for
+ * performance work).
+ */
+
+#    define DEBUG
+
+#endif
+
+void
+_pixman_log_error (const char *function, const char *message);
+
+#define return_if_fail(expr)                                            \
+    do                                                                  \
+    {                                                                   \
+	if (unlikely (!(expr)))                                         \
+	{								\
+	    _pixman_log_error (FUNC, "The expression " # expr " was false"); \
+	    return;							\
+	}								\
+    }                                                                   \
+    while (0)
+
+#define return_val_if_fail(expr, retval)                                \
+    do                                                                  \
+    {                                                                   \
+	if (unlikely (!(expr)))                                         \
+	{								\
+	    _pixman_log_error (FUNC, "The expression " # expr " was false"); \
+	    return (retval);						\
+	}								\
+    }                                                                   \
+    while (0)
+
+#define critical_if_fail(expr)						\
+    do									\
+    {									\
+	if (unlikely (!(expr)))                                         \
+	    _pixman_log_error (FUNC, "The expression " # expr " was false"); \
+    }									\
+    while (0)
+
+/*
+ * Matrix
+ */
+
+typedef struct { pixman_fixed_48_16_t v[3]; } pixman_vector_48_16_t;
+
+PIXMAN_EXPORT
+pixman_bool_t
+pixman_transform_point_31_16 (const pixman_transform_t    *t,
+                              const pixman_vector_48_16_t *v,
+                              pixman_vector_48_16_t       *result);
+
+PIXMAN_EXPORT
+void
+pixman_transform_point_31_16_3d (const pixman_transform_t    *t,
+                                 const pixman_vector_48_16_t *v,
+                                 pixman_vector_48_16_t       *result);
+
+PIXMAN_EXPORT
+void
+pixman_transform_point_31_16_affine (const pixman_transform_t    *t,
+                                     const pixman_vector_48_16_t *v,
+                                     pixman_vector_48_16_t       *result);
+
+/*
+ * Timers
+ */
+
+#ifdef PIXMAN_TIMERS
+
+static inline uint64_t
+oil_profile_stamp_rdtsc (void)
+{
+    uint32_t hi, lo;
+
+    __asm__ __volatile__ ("rdtsc\n" : "=a" (lo), "=d" (hi));
+
+    return lo | (((uint64_t)hi) << 32);
+}
+
+#define OIL_STAMP oil_profile_stamp_rdtsc
+
+typedef struct pixman_timer_t pixman_timer_t;
+
+struct pixman_timer_t
+{
+    int             initialized;
+    const char *    name;
+    uint64_t        n_times;
+    uint64_t        total;
+    pixman_timer_t *next;
+};
+
+extern int timer_defined;
+
+void pixman_timer_register (pixman_timer_t *timer);
+
+#define TIMER_BEGIN(tname)                                              \
+    {                                                                   \
+	static pixman_timer_t timer ## tname;                           \
+	uint64_t              begin ## tname;                           \
+        								\
+	if (!timer ## tname.initialized)				\
+	{                                                               \
+	    timer ## tname.initialized = 1;				\
+	    timer ## tname.name = # tname;				\
+	    pixman_timer_register (&timer ## tname);			\
+	}                                                               \
+									\
+	timer ## tname.n_times++;					\
+	begin ## tname = OIL_STAMP ();
+
+#define TIMER_END(tname)                                                \
+    timer ## tname.total += OIL_STAMP () - begin ## tname;		\
+    }
+
+#else
+
+#define TIMER_BEGIN(tname)
+#define TIMER_END(tname)
+
+#endif /* PIXMAN_TIMERS */
+
+#endif /* __ASSEMBLER__ */
+
+#endif /* PIXMAN_PRIVATE_H */