pixman/pixman-private.h

   1 #ifndef PACKAGE
   2 #  error config.h must be included before pixman-private.h
   3 #endif
   4
   5 #ifndef PIXMAN_PRIVATE_H
   6 #define PIXMAN_PRIVATE_H
   7
   8 #include "pixman.h"
   9 #include <time.h>
  10 #include <assert.h>
  11
  12 #include "pixman-compiler.h"
  13
  14
  15 #ifndef FALSE
  16 #define FALSE 0
  17 #endif
  18
  19 #ifndef TRUE
  20 #define TRUE 1
  21 #endif
  22
  23 #undef DEBUG
  24 #define DEBUG 0
  25
  26 #define FB_MASK     (0x1f)
  27 #define FB_ALLONES  ((uint32_t) -1)
  28
  29 /* Memory allocation helpers */
  30 void *pixman_malloc_ab (unsigned int n, unsigned int b);
  31 void *pixman_malloc_abc (unsigned int a, unsigned int b, unsigned int c);
  32 pixman_bool_t pixman_multiply_overflows_int (unsigned int a, unsigned int b);
  33 pixman_bool_t pixman_addition_overflows_int (unsigned int a, unsigned int b);
  34
  35 #if DEBUG
  36
  37 #define return_if_fail(expr)                                            \
  38     do                                                                  \
  39     {                                                                   \
  40         if (!(expr))                                                    \
  41         {                                                               \
  42             fprintf(stderr, "In %s: %s failed\n", FUNC, #expr);         \
  43             return;                                                     \
  44         }                                                               \
  45     }                                                                   \
  46     while (0)
  47
  48 #define return_val_if_fail(expr, retval)                                \
  49     do                                                                  \
  50     {                                                                   \
  51         if (!(expr))                                                    \
  52         {                                                               \
  53             fprintf(stderr, "In %s: %s failed\n", FUNC, #expr);         \
  54             return (retval);                                            \
  55         }                                                               \
  56     }                                                                   \
  57     while (0)
  58
  59 #else
  60
  61 #define return_if_fail(expr)                                            \
  62     do                                                                  \
  63     {                                                                   \
  64         if (!(expr))                                                    \
  65             return;                                                     \
  66     }                                                                   \
  67     while (0)
  68
  69 #define return_val_if_fail(expr, retval)                                \
  70     do                                                                  \
  71     {                                                                   \
  72         if (!(expr))                                                    \
  73             return (retval);                                            \
  74     }                                                                   \
  75     while (0)
  76
  77 #endif
  78
  79 typedef struct image_common image_common_t;
  80 typedef struct source_image source_image_t;
  81 typedef struct solid_fill solid_fill_t;
  82 typedef struct gradient gradient_t;
  83 typedef struct linear_gradient linear_gradient_t;
  84 typedef struct horizontal_gradient horizontal_gradient_t;
  85 typedef struct vertical_gradient vertical_gradient_t;
  86 typedef struct conical_gradient conical_gradient_t;
  87 typedef struct radial_gradient radial_gradient_t;
  88 typedef struct bits_image bits_image_t;
  89 typedef struct circle circle_t;
  90 typedef struct point point_t;
  91
  92 /* FIXME - the types and structures below should be give proper names
  93  */
  94
  95 typedef void (*fetchProc32)(bits_image_t *pict, int x, int y, int width,
  96                                      uint32_t *buffer);
  97 typedef uint32_t (*fetchPixelProc32)(bits_image_t *pict, int offset, int line);
  98 typedef void (*storeProc32)(pixman_image_t *, uint32_t *bits,
  99                                      const uint32_t *values, int x, int width,
 100                                      const pixman_indexed_t *);
 101
 102 typedef void (*fetchProc64)(bits_image_t *pict, int x, int y, int width,
 103                                      uint64_t *buffer);
 104 typedef uint64_t (*fetchPixelProc64)(bits_image_t *pict, int offset, int line);
 105 typedef void (*storeProc64)(pixman_image_t *, uint32_t *bits,
 106                                      const uint64_t *values, int x, int width,
 107                                      const pixman_indexed_t *);
 108
 109 typedef void (* fetch_pixels_32_t) (bits_image_t *image, uint32_t *buffer, int n_pixels);
 110 typedef void (* fetch_pixels_64_t) (bits_image_t *image, uint64_t *buffer, int n_pixels);
 111
 112 fetchProc32 pixman_fetchProcForPicture32 (bits_image_t *);
 113 fetch_pixels_32_t pixman_fetchPixelProcForPicture32 (bits_image_t *);
 114 storeProc32 pixman_storeProcForPicture32 (bits_image_t *);
 115 fetchProc32 pixman_fetchProcForPicture32_accessors (bits_image_t *);
 116 fetch_pixels_32_t pixman_fetchPixelProcForPicture32_accessors (bits_image_t *);
 117 storeProc32 pixman_storeProcForPicture32_accessors (bits_image_t *);
 118
 119 fetchProc64 pixman_fetchProcForPicture64 (bits_image_t *);
 120 fetch_pixels_64_t pixman_fetchPixelProcForPicture64 (bits_image_t *);
 121 storeProc64 pixman_storeProcForPicture64 (bits_image_t *);
 122 fetchProc64 pixman_fetchProcForPicture64_accessors (bits_image_t *);
 123 fetch_pixels_64_t pixman_fetchPixelProcForPicture64_accessors (bits_image_t *);
 124 storeProc64 pixman_storeProcForPicture64_accessors (bits_image_t *);
 125
 126 void pixman_expand(uint64_t *dst, const uint32_t *src, pixman_format_code_t, int width);
 127 void pixman_contract(uint32_t *dst, const uint64_t *src, int width);
 128
 129 void _pixman_image_get_scanline_64_generic (pixman_image_t * pict, int x, int y, int width,
 130                                             uint64_t *buffer, uint64_t *mask, uint32_t maskBits);
 131
 132 /* end */
 133
 134 typedef enum
 135 {
 136     BITS,
 137     LINEAR,
 138     CONICAL,
 139     RADIAL,
 140     SOLID
 141 } image_type_t;
 142
 143 typedef enum
 144 {
 145     SOURCE_IMAGE_CLASS_UNKNOWN,
 146     SOURCE_IMAGE_CLASS_HORIZONTAL,
 147     SOURCE_IMAGE_CLASS_VERTICAL,
 148 } source_pict_class_t;
 149
 150 typedef void (*scanStoreProc)(bits_image_t *img, int x, int y, int width, uint32_t *buffer);
 151 typedef void (*scanFetchProc)(pixman_image_t *, int, int, int, uint32_t *,
 152                               uint32_t *, uint32_t);
 153
 154 source_pict_class_t _pixman_image_classify (pixman_image_t *image,
 155                                             int             x,
 156                                             int             y,
 157                                             int             width,
 158                                             int             height);
 159
 160 void
 161 _pixman_image_get_scanline_32 (pixman_image_t *image, int x, int y, int width,
 162                                uint32_t *buffer, uint32_t *mask, uint32_t mask_bits);
 163
 164 /* Even thought the type of buffer is uint32_t *, the function actually expects
 165  * a uint64_t *buffer.
 166  */
 167 void
 168 _pixman_image_get_scanline_64 (pixman_image_t *image, int x, int y, int width,
 169                                uint32_t *buffer, uint32_t *unused, uint32_t unused2);
 170
 171 void
 172 _pixman_image_store_scanline_32 (bits_image_t *image, int x, int y, int width,
 173                                  uint32_t *buffer);
 174 void
 175 _pixman_image_fetch_pixels (bits_image_t *image, uint32_t *buffer, int n_pixels);
 176
 177 /* Even thought the type of buffer is uint32_t *, the function actually expects
 178  * a uint64_t *buffer.
 179  */
 180 void
 181 _pixman_image_store_scanline_64 (bits_image_t *image, int x, int y, int width,
 182                                  uint32_t *buffer);
 183
 184 pixman_image_t *
 185 _pixman_image_allocate (void);
 186
 187 pixman_bool_t
 188 _pixman_init_gradient (gradient_t     *gradient,
 189                        const pixman_gradient_stop_t *stops,
 190                        int             n_stops);
 191 void
 192 _pixman_image_reset_clip_region (pixman_image_t *image);
 193
 194 struct point
 195 {
 196     int16_t x, y;
 197 };
 198
 199 typedef source_pict_class_t (* classify_func_t) (pixman_image_t *image,
 200                                                  int             x,
 201                                                  int             y,
 202                                                  int             width,
 203                                                  int             height);
 204 typedef void (* property_changed_func_t)        (pixman_image_t *image);
 205
 206 struct image_common
 207 {
 208     image_type_t                type;
 209     int32_t                     ref_count;
 210     pixman_region32_t           clip_region;
 211     pixman_bool_t               have_clip_region;       /* FALSE if there is no clip */
 212     pixman_bool_t               client_clip;    /* Whether the source clip was set by a client */
 213     pixman_bool_t               clip_sources;           /* Whether the clip applies when
 214                                                          * the image is used as a source
 215                                                          */
 216     pixman_transform_t         *transform;
 217     pixman_repeat_t             repeat;
 218     pixman_filter_t             filter;
 219     pixman_fixed_t             *filter_params;
 220     int                         n_filter_params;
 221     bits_image_t               *alpha_map;
 222     point_t                     alpha_origin;
 223     pixman_bool_t               component_alpha;
 224     pixman_read_memory_func_t   read_func;
 225     pixman_write_memory_func_t  write_func;
 226     classify_func_t             classify;
 227     property_changed_func_t     property_changed;
 228     scanFetchProc               get_scanline_32;
 229     scanFetchProc               get_scanline_64;
 230
 231     pixman_image_destroy_func_t destroy_func;
 232     void *                      destroy_data;
 233 };
 234
 235 struct source_image
 236 {
 237     image_common_t      common;
 238     source_pict_class_t class;
 239 };
 240
 241 struct solid_fill
 242 {
 243     source_image_t      common;
 244     uint32_t            color;          /* FIXME: shouldn't this be a pixman_color_t? */
 245 };
 246
 247 struct gradient
 248 {
 249     source_image_t              common;
 250     int                         n_stops;
 251     pixman_gradient_stop_t *    stops;
 252     int                         stop_range;
 253     uint32_t *                  color_table;
 254     int                         color_table_size;
 255 };
 256
 257 struct linear_gradient
 258 {
 259     gradient_t                  common;
 260     pixman_point_fixed_t        p1;
 261     pixman_point_fixed_t        p2;
 262 };
 263
 264 struct circle
 265 {
 266     pixman_fixed_t x;
 267     pixman_fixed_t y;
 268     pixman_fixed_t radius;
 269 };
 270
 271 struct radial_gradient
 272 {
 273     gradient_t  common;
 274
 275     circle_t    c1;
 276     circle_t    c2;
 277     double      cdx;
 278     double      cdy;
 279     double      dr;
 280     double      A;
 281 };
 282
 283 struct conical_gradient
 284 {
 285     gradient_t                  common;
 286     pixman_point_fixed_t        center;
 287     pixman_fixed_t              angle;
 288 };
 289
 290 struct bits_image
 291 {
 292     image_common_t              common;
 293     pixman_format_code_t        format;
 294     const pixman_indexed_t     *indexed;
 295     int                         width;
 296     int                         height;
 297     uint32_t *                  bits;
 298     uint32_t *                  free_me;
 299     int                         rowstride; /* in number of uint32_t's */
 300
 301     /* Fetch raw pixels, with no regard for transformations, alpha map etc. */
 302     fetch_pixels_32_t           fetch_pixels_raw_32;
 303     fetch_pixels_64_t           fetch_pixels_raw_64;
 304
 305     /* Fetch raw scanlines, with no regard for transformations, alpha maps etc. */
 306     fetchProc32                 fetch_scanline_raw_32;
 307     fetchProc64                 fetch_scanline_raw_64;
 308
 309     /* Store scanlines with no regard for alpha maps */
 310     storeProc32                 store_scanline_raw_32;
 311     storeProc64                 store_scanline_raw_64;
 312
 313     /* Store a scanline, taking alpha maps into account */
 314     scanStoreProc               store_scanline_32;
 315     scanStoreProc               store_scanline_64;
 316
 317     /* Used for indirect access to the bits */
 318     pixman_read_memory_func_t   read_func;
 319     pixman_write_memory_func_t  write_func;
 320
 321     void *                      orig_data;      /* Stores pointer to original
 322                                                  * data, when the image is
 323                                                  * being accessed.
 324                                                  */
 325 };
 326
 327 union pixman_image
 328 {
 329     image_type_t                type;
 330     image_common_t              common;
 331     bits_image_t                bits;
 332     source_image_t              source;
 333     gradient_t                  gradient;
 334     linear_gradient_t           linear;
 335     conical_gradient_t          conical;
 336     radial_gradient_t           radial;
 337     solid_fill_t                solid;
 338 };
 339
 340 /*
 341  * Gradient walker
 342  */
 343 typedef struct
 344 {
 345     uint32_t        left_ag;
 346     uint32_t        left_rb;
 347     uint32_t        right_ag;
 348     uint32_t        right_rb;
 349     int32_t       left_x;
 350     int32_t       right_x;
 351     int32_t       stepper;
 352
 353     pixman_gradient_stop_t      *stops;
 354     int                      num_stops;
 355     unsigned int             spread;
 356
 357     int           need_reset;
 358 } pixman_gradient_walker_t;
 359
 360 void
 361 _pixman_gradient_walker_init (pixman_gradient_walker_t  *walker,
 362                               gradient_t      *gradient,
 363                               unsigned int     spread);
 364
 365 void
 366 _pixman_gradient_walker_reset (pixman_gradient_walker_t       *walker,
 367                                pixman_fixed_32_32_t  pos);
 368
 369 uint32_t
 370 _pixman_gradient_walker_pixel (pixman_gradient_walker_t       *walker,
 371                                pixman_fixed_32_32_t  x);
 372
 373
 374
 375 #ifdef WORDS_BIGENDIAN
 376 #define Fetch24(img, a)  ((unsigned long) (a) & 1 ?           \
 377     ((READ(img, a) << 16) | READ(img, (uint16_t *) ((a)+1))) : \
 378     ((READ(img, (uint16_t *) (a)) << 8) | READ(img, (a)+2)))
 379 #define Store24(img,a,v) ((unsigned long) (a) & 1 ? \
 380     (WRITE(img, a, (uint8_t) ((v) >> 16)),                \
 381      WRITE(img, (uint16_t *) ((a)+1), (uint16_t) (v))) :  \
 382     (WRITE(img, (uint16_t *) (a), (uint16_t) ((v) >> 8)), \
 383      WRITE(img, (a)+2, (uint8_t) (v))))
 384 #else
 385 #define Fetch24(img,a)  ((unsigned long) (a) & 1 ?                           \
 386     (READ(img, a) | (READ(img, (uint16_t *) ((a)+1)) << 8)) : \
 387     (READ(img, (uint16_t *) (a)) | (READ(img, (a)+2) << 16)))
 388 #define Store24(img,a,v) ((unsigned long) (a) & 1 ? \
 389     (WRITE(img, a, (uint8_t) (v)),                              \
 390      WRITE(img, (uint16_t *) ((a)+1), (uint16_t) ((v) >> 8))) : \
 391     (WRITE(img, (uint16_t *) (a), (uint16_t) (v)),              \
 392      WRITE(img, (a)+2, (uint8_t) ((v) >> 16))))
 393 #endif
 394
 395 #define CvtR8G8B8toY15(s)       (((((s) >> 16) & 0xff) * 153 + \
 396                                   (((s) >>  8) & 0xff) * 301 +          \
 397                                   (((s)      ) & 0xff) * 58) >> 2)
 398 #define miCvtR8G8B8to15(s) ((((s) >> 3) & 0x001f) |  \
 399                             (((s) >> 6) & 0x03e0) |  \
 400                             (((s) >> 9) & 0x7c00))
 401 #define miIndexToEnt15(mif,rgb15) ((mif)->ent[rgb15])
 402 #define miIndexToEnt24(mif,rgb24) miIndexToEnt15(mif,miCvtR8G8B8to15(rgb24))
 403
 404 #define miIndexToEntY24(mif,rgb24) ((mif)->ent[CvtR8G8B8toY15(rgb24)])
 405
 406
 407 #define FbIntMult(a,b,t) ( (t) = (a) * (b) + 0x80, ( ( ( (t)>>8 ) + (t) )>>8 ) )
 408 #define FbIntDiv(a,b)    (((uint16_t) (a) * 255) / (b))
 409
 410 #define FbGet8(v,i)   ((uint16_t) (uint8_t) ((v) >> i))
 411
 412
 413 #define cvt8888to0565(s)    ((((s) >> 3) & 0x001f) | \
 414                              (((s) >> 5) & 0x07e0) | \
 415                              (((s) >> 8) & 0xf800))
 416 #define cvt0565to0888(s)    (((((s) << 3) & 0xf8) | (((s) >> 2) & 0x7)) | \
 417                              ((((s) << 5) & 0xfc00) | (((s) >> 1) & 0x300)) | \
 418                              ((((s) << 8) & 0xf80000) | (((s) << 3) & 0x70000)))
 419
 420 /*
 421  * There are two ways of handling alpha -- either as a single unified value or
 422  * a separate value for each component, hence each macro must have two
 423  * versions.  The unified alpha version has a 'U' at the end of the name,
 424  * the component version has a 'C'.  Similarly, functions which deal with
 425  * this difference will have two versions using the same convention.
 426  */
 427
 428 #define FbOverU(x,y,i,a,t) ((t) = FbIntMult(FbGet8(y,i),(a),(t)) + FbGet8(x,i), \
 429                             (uint32_t) ((uint8_t) ((t) | (0 - ((t) >> 8)))) << (i))
 430
 431 #define FbOverC(x,y,i,a,t) ((t) = FbIntMult(FbGet8(y,i),FbGet8(a,i),(t)) + FbGet8(x,i), \
 432                             (uint32_t) ((uint8_t) ((t) | (0 - ((t) >> 8)))) << (i))
 433
 434 #define FbInU(x,i,a,t) ((uint32_t) FbIntMult(FbGet8(x,i),(a),(t)) << (i))
 435
 436 #define FbInC(x,i,a,t) ((uint32_t) FbIntMult(FbGet8(x,i),FbGet8(a,i),(t)) << (i))
 437
 438 #define FbAdd(x,y,i,t)  ((t) = FbGet8(x,i) + FbGet8(y,i),               \
 439                          (uint32_t) ((uint8_t) ((t) | (0 - ((t) >> 8)))) << (i))
 440
 441 #define div_255(x) (((x) + 0x80 + (((x) + 0x80) >> 8)) >> 8)
 442 #define div_65535(x) (((x) + 0x8000 + (((x) + 0x8000) >> 16)) >> 16)
 443
 444 #define MOD(a,b) ((a) < 0 ? ((b) - ((-(a) - 1) % (b))) - 1 : (a) % (b))
 445
 446 /* Divides two fixed-point numbers and returns an integer */
 447 #define DIV(a,b) ((((a) < 0) == ((b) < 0)) ? (a) / (b) :                \
 448                   ((a) - (b) + 1 - (((b) < 0) << 1)) / (b))
 449
 450 #define CLIP(a,b,c) ((a) < (b) ? (b) : ((a) > (c) ? (c) : (a)))
 451
 452 #ifndef MIN
 453 #  define MIN(a,b) ((a < b)? a : b)
 454 #endif
 455
 456 #ifndef MAX
 457 #  define MAX(a,b) ((a > b)? a : b)
 458 #endif
 459
 460 /* FIXME: the (void)__read_func hides lots of warnings (which is what they
 461  * are supposed to do), but some of them are real. For example the one
 462  * where Fetch4 doesn't have a READ
 463  */
 464
 465 #ifdef PIXMAN_FB_ACCESSORS
 466
 467 #define ACCESS(sym) sym##_accessors
 468
 469 #define READ(img, ptr)                                                  \
 470     ((img)->common.read_func ((ptr), sizeof(*(ptr))))
 471 #define WRITE(img, ptr,val)                                             \
 472     ((img)->common.write_func ((ptr), (val), sizeof (*(ptr))))
 473
 474 #define MEMCPY_WRAPPED(img, dst, src, size)                             \
 475     do {                                                                \
 476         size_t _i;                                                      \
 477         uint8_t *_dst = (uint8_t*)(dst), *_src = (uint8_t*)(src);       \
 478         for(_i = 0; _i < size; _i++) {                                  \
 479             WRITE((img), _dst +_i, READ((img), _src + _i));             \
 480         }                                                               \
 481     } while (0)
 482
 483 #define MEMSET_WRAPPED(img, dst, val, size)                             \
 484     do {                                                                \
 485         size_t _i;                                                      \
 486         uint8_t *_dst = (uint8_t*)(dst);                                \
 487         for(_i = 0; _i < (size_t) size; _i++) {                         \
 488             WRITE((img), _dst +_i, (val));                              \
 489         }                                                               \
 490     } while (0)
 491
 492 #else
 493
 494 #define ACCESS(sym) sym
 495
 496 #define READ(img, ptr)          (*(ptr))
 497 #define WRITE(img, ptr, val)    (*(ptr) = (val))
 498 #define MEMCPY_WRAPPED(img, dst, src, size)                             \
 499     memcpy(dst, src, size)
 500 #define MEMSET_WRAPPED(img, dst, val, size)                             \
 501     memset(dst, val, size)
 502
 503 #endif
 504
 505 #define fbComposeGetStart(pict,x,y,type,out_stride,line,mul) do {       \
 506         uint32_t        *__bits__;                                      \
 507         int             __stride__;                                     \
 508         int             __bpp__;                                        \
 509                                                                         \
 510         __bits__ = pict->bits.bits;                                     \
 511         __stride__ = pict->bits.rowstride;                              \
 512         __bpp__ = PIXMAN_FORMAT_BPP(pict->bits.format);                 \
 513         (out_stride) = __stride__ * (int) sizeof (uint32_t) / (int) sizeof (type);      \
 514         (line) = ((type *) __bits__) +                                  \
 515             (out_stride) * (y) + (mul) * (x);                           \
 516     } while (0)
 517
 518
 519 #define PIXMAN_FORMAT_16BPC(f)  (PIXMAN_FORMAT_A(f) > 8 || \
 520                                  PIXMAN_FORMAT_R(f) > 8 || \
 521                                  PIXMAN_FORMAT_G(f) > 8 || \
 522                                  PIXMAN_FORMAT_B(f) > 8)
 523 /*
 524  * Edges
 525  */
 526
 527 #define MAX_ALPHA(n)    ((1 << (n)) - 1)
 528 #define N_Y_FRAC(n)     ((n) == 1 ? 1 : (1 << ((n)/2)) - 1)
 529 #define N_X_FRAC(n)     ((n) == 1 ? 1 : (1 << ((n)/2)) + 1)
 530
 531 #define STEP_Y_SMALL(n) (pixman_fixed_1 / N_Y_FRAC(n))
 532 #define STEP_Y_BIG(n)   (pixman_fixed_1 - (N_Y_FRAC(n) - 1) * STEP_Y_SMALL(n))
 533
 534 #define Y_FRAC_FIRST(n) (STEP_Y_SMALL(n) / 2)
 535 #define Y_FRAC_LAST(n)  (Y_FRAC_FIRST(n) + (N_Y_FRAC(n) - 1) * STEP_Y_SMALL(n))
 536
 537 #define STEP_X_SMALL(n) (pixman_fixed_1 / N_X_FRAC(n))
 538 #define STEP_X_BIG(n)   (pixman_fixed_1 - (N_X_FRAC(n) - 1) * STEP_X_SMALL(n))
 539
 540 #define X_FRAC_FIRST(n) (STEP_X_SMALL(n) / 2)
 541 #define X_FRAC_LAST(n)  (X_FRAC_FIRST(n) + (N_X_FRAC(n) - 1) * STEP_X_SMALL(n))
 542
 543 #define RenderSamplesX(x,n)     ((n) == 1 ? 0 : (pixman_fixed_frac (x) + X_FRAC_FIRST(n)) / STEP_X_SMALL(n))
 544
 545 /*
 546  * Step across a small sample grid gap
 547  */
 548 #define RenderEdgeStepSmall(edge) { \
 549     edge->x += edge->stepx_small;   \
 550     edge->e += edge->dx_small;      \
 551     if (edge->e > 0)                \
 552     {                               \
 553         edge->e -= edge->dy;        \
 554         edge->x += edge->signdx;    \
 555     }                               \
 556 }
 557
 558 /*
 559  * Step across a large sample grid gap
 560  */
 561 #define RenderEdgeStepBig(edge) {   \
 562     edge->x += edge->stepx_big;     \
 563     edge->e += edge->dx_big;        \
 564     if (edge->e > 0)                \
 565     {                               \
 566         edge->e -= edge->dy;        \
 567         edge->x += edge->signdx;    \
 568     }                               \
 569 }
 570
 571 void
 572 pixman_rasterize_edges_accessors (pixman_image_t *image,
 573                                   pixman_edge_t *l,
 574                                   pixman_edge_t *r,
 575                                   pixman_fixed_t        t,
 576                                   pixman_fixed_t        b);
 577
 578 pixman_bool_t
 579 pixman_image_is_opaque(pixman_image_t *image);
 580
 581 pixman_bool_t
 582 pixman_image_is_solid (pixman_image_t *image);
 583
 584 uint32_t
 585 pixman_image_get_solid (pixman_image_t *image,
 586                         pixman_format_code_t format);
 587
 588 pixman_bool_t
 589 pixman_compute_composite_region32 (pixman_region32_t *  pRegion,
 590                                    pixman_image_t *     pSrc,
 591                                    pixman_image_t *     pMask,
 592                                    pixman_image_t *     pDst,
 593                                    int16_t              xSrc,
 594                                    int16_t              ySrc,
 595                                    int16_t              xMask,
 596                                    int16_t              yMask,
 597                                    int16_t              xDst,
 598                                    int16_t              yDst,
 599                                    uint16_t             width,
 600                                    uint16_t             height);
 601
 602 /* Region Helpers */
 603 pixman_bool_t pixman_region32_copy_from_region16 (pixman_region32_t *dst,
 604                                                   pixman_region16_t *src);
 605 pixman_bool_t pixman_region16_copy_from_region32 (pixman_region16_t *dst,
 606                                                   pixman_region32_t *src);
 607
 608 #ifdef PIXMAN_TIMERS
 609
 610 /* Timing */
 611 static inline uint64_t
 612 oil_profile_stamp_rdtsc (void)
 613 {
 614     uint64_t ts;
 615     __asm__ __volatile__("rdtsc\n" : "=A" (ts));
 616     return ts;
 617 }
 618 #define OIL_STAMP oil_profile_stamp_rdtsc
 619
 620 typedef struct pixman_timer_t pixman_timer_t;
 621
 622 struct pixman_timer_t
 623 {
 624     int initialized;
 625     const char *name;
 626     uint64_t n_times;
 627     uint64_t total;
 628     pixman_timer_t *next;
 629 };
 630
 631 extern int timer_defined;
 632 void pixman_timer_register (pixman_timer_t *timer);
 633
 634 #define TIMER_BEGIN(tname)                                              \
 635     {                                                                   \
 636         static pixman_timer_t   timer##tname;                           \
 637         uint64_t                begin##tname;                           \
 638                                                                         \
 639         if (!timer##tname.initialized)                                  \
 640         {                                                               \
 641             timer##tname.initialized = 1;                               \
 642             timer##tname.name = #tname;                                 \
 643             pixman_timer_register (&timer##tname);                      \
 644         }                                                               \
 645                                                                         \
 646         timer##tname.n_times++;                                         \
 647         begin##tname = OIL_STAMP();
 648
 649 #define TIMER_END(tname)                                                \
 650         timer##tname.total += OIL_STAMP() - begin##tname;               \
 651     }
 652
 653 #endif /* PIXMAN_TIMERS */
 654
 655 typedef struct pixman_implementation_t pixman_implementation_t;
 656
 657 typedef void (* pixman_combine_32_func_t) (pixman_implementation_t *    imp,
 658                                            pixman_op_t                  op,
 659                                            uint32_t *                   dest,
 660                                            const uint32_t *             src,
 661                                            const uint32_t *             mask,
 662                                            int                          width);
 663
 664 typedef void (* pixman_combine_64_func_t) (pixman_implementation_t *    imp,
 665                                            pixman_op_t                  op,
 666                                            uint64_t *                   dest,
 667                                            const uint64_t *             src,
 668                                            const uint64_t *             mask,
 669                                            int                          width);
 670
 671 typedef void (* pixman_composite_func_t)  (pixman_implementation_t *    imp,
 672                                            pixman_op_t                  op,
 673                                            pixman_image_t *             src,
 674                                            pixman_image_t *             mask,
 675                                            pixman_image_t *             dest,
 676                                            int32_t                      src_x,
 677                                            int32_t                      src_y,
 678                                            int32_t                      mask_x,
 679                                            int32_t                      mask_y,
 680                                            int32_t                      dest_x,
 681                                            int32_t                      dest_y,
 682                                            int32_t                      width,
 683                                            int32_t                      height);
 684 typedef pixman_bool_t (* pixman_blt_func_t) (pixman_implementation_t *  imp,
 685                                              uint32_t *                 src_bits,
 686                                              uint32_t *                 dst_bits,
 687                                              int                        src_stride,
 688                                              int                        dst_stride,
 689                                              int                        src_bpp,
 690                                              int                        dst_bpp,
 691                                              int                        src_x,
 692                                              int                        src_y,
 693                                              int                        dst_x,
 694                                              int                        dst_y,
 695                                              int                        width,
 696                                              int                        height);
 697 typedef pixman_bool_t (* pixman_fill_func_t) (pixman_implementation_t *imp,
 698                                               uint32_t *bits,
 699                                               int stride,
 700                                               int bpp,
 701                                               int x,
 702                                               int y,
 703                                               int width,
 704                                               int height,
 705                                               uint32_t xor);
 706
 707 void
 708 _pixman_walk_composite_region (pixman_implementation_t *imp,
 709                                pixman_op_t op,
 710                                pixman_image_t * pSrc,
 711                                pixman_image_t * pMask,
 712                                pixman_image_t * pDst,
 713                                int16_t xSrc,
 714                                int16_t ySrc,
 715                                int16_t xMask,
 716                                int16_t yMask,
 717                                int16_t xDst,
 718                                int16_t yDst,
 719                                uint16_t width,
 720                                uint16_t height,
 721                                pixman_composite_func_t compositeRect);
 722
 723 void _pixman_setup_combiner_functions_32 (pixman_implementation_t *imp);
 724 void _pixman_setup_combiner_functions_64 (pixman_implementation_t *imp);
 725
 726 /* These "formats" both have depth 0, so they
 727  * will never clash with any real ones
 728  */
 729 #define PIXMAN_null             PIXMAN_FORMAT(0,0,0,0,0,0)
 730 #define PIXMAN_solid            PIXMAN_FORMAT(0,1,0,0,0,0)
 731
 732 #define NEED_COMPONENT_ALPHA            (1 << 0)
 733 #define NEED_PIXBUF                     (1 << 1)
 734 #define NEED_SOLID_MASK                 (1 << 2)
 735
 736 typedef struct
 737 {
 738     pixman_op_t                 op;
 739     pixman_format_code_t        src_format;
 740     pixman_format_code_t        mask_format;
 741     pixman_format_code_t        dest_format;
 742     pixman_composite_func_t     func;
 743     uint32_t                    flags;
 744 } pixman_fast_path_t;
 745
 746 struct pixman_implementation_t
 747 {
 748     pixman_implementation_t *   toplevel;
 749     pixman_implementation_t *   delegate;
 750
 751     pixman_composite_func_t     composite;
 752     pixman_blt_func_t           blt;
 753     pixman_fill_func_t          fill;
 754
 755     pixman_combine_32_func_t    combine_32[PIXMAN_OP_LAST];
 756     pixman_combine_32_func_t    combine_32_ca[PIXMAN_OP_LAST];
 757     pixman_combine_64_func_t    combine_64[PIXMAN_OP_LAST];
 758     pixman_combine_64_func_t    combine_64_ca[PIXMAN_OP_LAST];
 759 };
 760
 761 pixman_implementation_t *
 762 _pixman_implementation_create (pixman_implementation_t *delegate);
 763
 764 void
 765 _pixman_implementation_combine_32 (pixman_implementation_t *    imp,
 766                                    pixman_op_t                  op,
 767                                    uint32_t *                   dest,
 768                                    const uint32_t *             src,
 769                                    const uint32_t *             mask,
 770                                    int                          width);
 771 void
 772 _pixman_implementation_combine_64 (pixman_implementation_t *    imp,
 773                                    pixman_op_t                  op,
 774                                    uint64_t *                   dest,
 775                                    const uint64_t *             src,
 776                                    const uint64_t *             mask,
 777                                    int                          width);
 778 void
 779 _pixman_implementation_combine_32_ca (pixman_implementation_t * imp,
 780                                       pixman_op_t               op,
 781                                       uint32_t *                dest,
 782                                       const uint32_t *          src,
 783                                       const uint32_t *          mask,
 784                                       int                       width);
 785 void
 786 _pixman_implementation_combine_64_ca (pixman_implementation_t * imp,
 787                                       pixman_op_t               op,
 788                                       uint64_t *                dest,
 789                                       const uint64_t *          src,
 790                                       const uint64_t *          mask,
 791                                       int                       width);
 792 void
 793 _pixman_implementation_composite (pixman_implementation_t *     imp,
 794                                   pixman_op_t                   op,
 795                                   pixman_image_t *              src,
 796                                   pixman_image_t *              mask,
 797                                   pixman_image_t *              dest,
 798                                   int32_t                       src_x,
 799                                   int32_t                       src_y,
 800                                   int32_t                       mask_x,
 801                                   int32_t                       mask_y,
 802                                   int32_t                       dest_x,
 803                                   int32_t                       dest_y,
 804                                   int32_t                       width,
 805                                   int32_t                       height);
 806
 807 pixman_bool_t
 808 _pixman_implementation_blt (pixman_implementation_t *   imp,
 809                             uint32_t *                  src_bits,
 810                             uint32_t *                  dst_bits,
 811                             int                         src_stride,
 812                             int                         dst_stride,
 813                             int                         src_bpp,
 814                             int                         dst_bpp,
 815                             int                         src_x,
 816                             int                         src_y,
 817                             int                         dst_x,
 818                             int                         dst_y,
 819                             int                         width,
 820                             int                         height);
 821 pixman_bool_t
 822 _pixman_implementation_fill (pixman_implementation_t *   imp,
 823                              uint32_t *bits,
 824                              int stride,
 825                              int bpp,
 826                              int x,
 827                              int y,
 828                              int width,
 829                              int height,
 830                              uint32_t xor);
 831
 832 /* Specific implementations */
 833 pixman_implementation_t *
 834 _pixman_implementation_create_general (void);
 835 pixman_implementation_t *
 836 _pixman_implementation_create_fast_path (void);
 837 #ifdef USE_MMX
 838 pixman_implementation_t *
 839 _pixman_implementation_create_mmx (void);
 840 #endif
 841 #ifdef USE_SSE2
 842 pixman_implementation_t *
 843 _pixman_implementation_create_sse2 (void);
 844 #endif
 845 #ifdef USE_ARM_SIMD
 846 pixman_implementation_t *
 847 _pixman_implementation_create_arm_simd (void);
 848 #endif
 849 #ifdef USE_ARM_NEON
 850 pixman_implementation_t *
 851 _pixman_implementation_create_arm_neon (void);
 852 #endif
 853 #ifdef USE_VMX
 854 pixman_implementation_t *
 855 _pixman_implementation_create_vmx (void);
 856 #endif
 857
 858 pixman_bool_t
 859 _pixman_run_fast_path (const pixman_fast_path_t *paths,
 860                        pixman_implementation_t *imp,
 861                        pixman_op_t op,
 862                        pixman_image_t *src,
 863                        pixman_image_t *mask,
 864                        pixman_image_t *dest,
 865                        int32_t src_x,
 866                        int32_t src_y,
 867                        int32_t mask_x,
 868                        int32_t mask_y,
 869                        int32_t dest_x,
 870                        int32_t dest_y,
 871                        int32_t width,
 872                        int32_t height);
 873
 874 pixman_implementation_t *
 875 _pixman_choose_implementation (void);
 876
 877 #endif /* PIXMAN_PRIVATE_H */