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