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