--- /dev/null
+#include <float.h>
+
+#ifndef PIXMAN_PRIVATE_H
+#define PIXMAN_PRIVATE_H
+
+/*
+ * The defines which are shared between C and assembly code
+ */
+
+/* bilinear interpolation precision (must be <= 8) */
+#define BILINEAR_INTERPOLATION_BITS 7
+#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 "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 */
+
+ 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_t left_x;
+ pixman_fixed_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);
+
+uint32_t
+_pixman_gradient_walker_pixel (pixman_gradient_walker_t *walker,
+ pixman_fixed_48_16_t x);
+
+/*
+ * 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_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_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);
+
+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);
+
+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 */
Code Review / kvmfornfv.git / blobdiff