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  * Images
  16  */
  17 typedef struct image_common image_common_t;
  18 typedef struct source_image source_image_t;
  19 typedef struct solid_fill solid_fill_t;
  20 typedef struct gradient gradient_t;
  21 typedef struct linear_gradient linear_gradient_t;
  22 typedef struct horizontal_gradient horizontal_gradient_t;
  23 typedef struct vertical_gradient vertical_gradient_t;
  24 typedef struct conical_gradient conical_gradient_t;
  25 typedef struct radial_gradient radial_gradient_t;
  26 typedef struct bits_image bits_image_t;
  27 typedef struct circle circle_t;
  28
  29 typedef void (*fetch_scanline_t) (pixman_image_t *image,
  30                                   int             x,
  31                                   int             y,
  32                                   int             width,
  33                                   uint32_t       *buffer,
  34                                   const uint32_t *mask,
  35                                   uint32_t        mask_bits);
  36
  37 typedef uint32_t (*fetch_pixel_32_t) (bits_image_t *image,
  38                                       int           x,
  39                                       int           y);
  40
  41 typedef uint64_t (*fetch_pixel_64_t) (bits_image_t *image,
  42                                       int           x,
  43                                       int           y);
  44
  45 typedef void (*store_scanline_t) (bits_image_t *  image,
  46                                   int             x,
  47                                   int             y,
  48                                   int             width,
  49                                   const uint32_t *values);
  50
  51 typedef enum
  52 {
  53     BITS,
  54     LINEAR,
  55     CONICAL,
  56     RADIAL,
  57     SOLID
  58 } image_type_t;
  59
  60 typedef enum
  61 {
  62     SOURCE_IMAGE_CLASS_UNKNOWN,
  63     SOURCE_IMAGE_CLASS_HORIZONTAL,
  64     SOURCE_IMAGE_CLASS_VERTICAL,
  65 } source_image_class_t;
  66
  67 typedef source_image_class_t (*classify_func_t) (pixman_image_t *image,
  68                                                 int             x,
  69                                                 int             y,
  70                                                 int             width,
  71                                                 int             height);
  72 typedef void (*property_changed_func_t) (pixman_image_t *image);
  73
  74 struct image_common
  75 {
  76     image_type_t                type;
  77     int32_t                     ref_count;
  78     pixman_region32_t           clip_region;
  79     pixman_bool_t               have_clip_region;   /* FALSE if there is no clip */
  80     pixman_bool_t               client_clip;        /* Whether the source clip was
  81                                                        set by a client */
  82     pixman_bool_t               clip_sources;       /* Whether the clip applies when
  83                                                      * the image is used as a source
  84                                                      */
  85     pixman_bool_t               dirty;
  86     pixman_bool_t               need_workaround;
  87     pixman_transform_t *        transform;
  88     pixman_repeat_t             repeat;
  89     pixman_filter_t             filter;
  90     pixman_fixed_t *            filter_params;
  91     int                         n_filter_params;
  92     bits_image_t *              alpha_map;
  93     int                         alpha_origin_x;
  94     int                         alpha_origin_y;
  95     pixman_bool_t               component_alpha;
  96     classify_func_t             classify;
  97     property_changed_func_t     property_changed;
  98     fetch_scanline_t            get_scanline_32;
  99     fetch_scanline_t            get_scanline_64;
 100
 101     pixman_image_destroy_func_t destroy_func;
 102     void *                      destroy_data;
 103 };
 104
 105 struct source_image
 106 {
 107     image_common_t common;
 108     source_image_class_t class;
 109 };
 110
 111 struct solid_fill
 112 {
 113     source_image_t common;
 114     uint32_t       color;    /* FIXME: shouldn't this be a pixman_color_t? */
 115 };
 116
 117 struct gradient
 118 {
 119     source_image_t          common;
 120     int                     n_stops;
 121     pixman_gradient_stop_t *stops;
 122     int                     stop_range;
 123     uint32_t *              color_table;
 124     int                     color_table_size;
 125 };
 126
 127 struct linear_gradient
 128 {
 129     gradient_t           common;
 130     pixman_point_fixed_t p1;
 131     pixman_point_fixed_t p2;
 132 };
 133
 134 struct circle
 135 {
 136     pixman_fixed_t x;
 137     pixman_fixed_t y;
 138     pixman_fixed_t radius;
 139 };
 140
 141 struct radial_gradient
 142 {
 143     gradient_t common;
 144
 145     circle_t   c1;
 146     circle_t   c2;
 147     double     cdx;
 148     double     cdy;
 149     double     dr;
 150     double     A;
 151 };
 152
 153 struct conical_gradient
 154 {
 155     gradient_t           common;
 156     pixman_point_fixed_t center;
 157     pixman_fixed_t       angle;
 158 };
 159
 160 struct bits_image
 161 {
 162     image_common_t             common;
 163     pixman_format_code_t       format;
 164     const pixman_indexed_t *   indexed;
 165     int                        width;
 166     int                        height;
 167     uint32_t *                 bits;
 168     uint32_t *                 free_me;
 169     int                        rowstride;  /* in number of uint32_t's */
 170
 171     /* Fetch a pixel, disregarding alpha maps, transformations etc. */
 172     fetch_pixel_32_t           fetch_pixel_raw_32;
 173     fetch_pixel_64_t           fetch_pixel_raw_64;
 174
 175     /* Fetch a pixel, taking alpha maps into account */
 176     fetch_pixel_32_t           fetch_pixel_32;
 177     fetch_pixel_64_t           fetch_pixel_64;
 178
 179     /* Fetch raw scanlines, with no regard for transformations, alpha maps etc. */
 180     fetch_scanline_t           fetch_scanline_raw_32;
 181     fetch_scanline_t           fetch_scanline_raw_64;
 182
 183     /* Store scanlines with no regard for alpha maps */
 184     store_scanline_t           store_scanline_raw_32;
 185     store_scanline_t           store_scanline_raw_64;
 186
 187     /* Store a scanline, taking alpha maps into account */
 188     store_scanline_t           store_scanline_32;
 189     store_scanline_t           store_scanline_64;
 190
 191     /* Used for indirect access to the bits */
 192     pixman_read_memory_func_t  read_func;
 193     pixman_write_memory_func_t write_func;
 194 };
 195
 196 union pixman_image
 197 {
 198     image_type_t       type;
 199     image_common_t     common;
 200     bits_image_t       bits;
 201     source_image_t     source;
 202     gradient_t         gradient;
 203     linear_gradient_t  linear;
 204     conical_gradient_t conical;
 205     radial_gradient_t  radial;
 206     solid_fill_t       solid;
 207 };
 208
 209
 210 void
 211 _pixman_bits_image_setup_raw_accessors (bits_image_t *image);
 212
 213 void
 214 _pixman_image_get_scanline_generic_64  (pixman_image_t *image,
 215                                         int             x,
 216                                         int             y,
 217                                         int             width,
 218                                         uint32_t *      buffer,
 219                                         const uint32_t *mask,
 220                                         uint32_t        mask_bits);
 221
 222 source_image_class_t
 223 _pixman_image_classify (pixman_image_t *image,
 224                         int             x,
 225                         int             y,
 226                         int             width,
 227                         int             height);
 228
 229 void
 230 _pixman_image_get_scanline_32 (pixman_image_t *image,
 231                                int             x,
 232                                int             y,
 233                                int             width,
 234                                uint32_t *      buffer,
 235                                const uint32_t *mask,
 236                                uint32_t        mask_bits);
 237
 238 /* Even thought the type of buffer is uint32_t *, the function actually expects
 239  * a uint64_t *buffer.
 240  */
 241 void
 242 _pixman_image_get_scanline_64 (pixman_image_t *image,
 243                                int             x,
 244                                int             y,
 245                                int             width,
 246                                uint32_t *      buffer,
 247                                const uint32_t *unused,
 248                                uint32_t        unused2);
 249
 250 void
 251 _pixman_image_store_scanline_32 (bits_image_t *  image,
 252                                  int             x,
 253                                  int             y,
 254                                  int             width,
 255                                  const uint32_t *buffer);
 256 void
 257 _pixman_image_fetch_pixels (bits_image_t *image,
 258                             uint32_t *    buffer,
 259                             int           n_pixels);
 260
 261 /* Even though the type of buffer is uint32_t *, the function
 262  * actually expects a uint64_t *buffer.
 263  */
 264 void
 265 _pixman_image_store_scanline_64 (bits_image_t *  image,
 266                                  int             x,
 267                                  int             y,
 268                                  int             width,
 269                                  const uint32_t *buffer);
 270
 271 pixman_image_t *
 272 _pixman_image_allocate (void);
 273
 274 pixman_bool_t
 275 _pixman_init_gradient (gradient_t *                  gradient,
 276                        const pixman_gradient_stop_t *stops,
 277                        int                           n_stops);
 278 void
 279 _pixman_image_reset_clip_region (pixman_image_t *image);
 280
 281 void
 282 _pixman_image_validate (pixman_image_t *image);
 283
 284 pixman_bool_t
 285 _pixman_image_is_opaque (pixman_image_t *image);
 286
 287 pixman_bool_t
 288 _pixman_image_is_solid (pixman_image_t *image);
 289
 290 uint32_t
 291 _pixman_image_get_solid (pixman_image_t *     image,
 292                          pixman_format_code_t format);
 293
 294 #define PIXMAN_IMAGE_GET_LINE(image, x, y, type, out_stride, line, mul) \
 295     do                                                                  \
 296     {                                                                   \
 297         uint32_t *__bits__;                                             \
 298         int       __stride__;                                           \
 299                                                                         \
 300         __bits__ = image->bits.bits;                                    \
 301         __stride__ = image->bits.rowstride;                             \
 302         (out_stride) =                                                  \
 303             __stride__ * (int) sizeof (uint32_t) / (int) sizeof (type); \
 304         (line) =                                                        \
 305             ((type *) __bits__) + (out_stride) * (y) + (mul) * (x);     \
 306     } while (0)
 307
 308 /*
 309  * Gradient walker
 310  */
 311 typedef struct
 312 {
 313     uint32_t                left_ag;
 314     uint32_t                left_rb;
 315     uint32_t                right_ag;
 316     uint32_t                right_rb;
 317     int32_t                 left_x;
 318     int32_t                 right_x;
 319     int32_t                 stepper;
 320
 321     pixman_gradient_stop_t *stops;
 322     int                     num_stops;
 323     unsigned int            spread;
 324
 325     int                     need_reset;
 326 } pixman_gradient_walker_t;
 327
 328 void
 329 _pixman_gradient_walker_init (pixman_gradient_walker_t *walker,
 330                               gradient_t *              gradient,
 331                               unsigned int              spread);
 332
 333 void
 334 _pixman_gradient_walker_reset (pixman_gradient_walker_t *walker,
 335                                pixman_fixed_32_32_t      pos);
 336
 337 uint32_t
 338 _pixman_gradient_walker_pixel (pixman_gradient_walker_t *walker,
 339                                pixman_fixed_32_32_t      x);
 340
 341 /*
 342  * Edges
 343  */
 344
 345 #define MAX_ALPHA(n)    ((1 << (n)) - 1)
 346 #define N_Y_FRAC(n)     ((n) == 1 ? 1 : (1 << ((n) / 2)) - 1)
 347 #define N_X_FRAC(n)     ((n) == 1 ? 1 : (1 << ((n) / 2)) + 1)
 348
 349 #define STEP_Y_SMALL(n) (pixman_fixed_1 / N_Y_FRAC (n))
 350 #define STEP_Y_BIG(n)   (pixman_fixed_1 - (N_Y_FRAC (n) - 1) * STEP_Y_SMALL (n))
 351
 352 #define Y_FRAC_FIRST(n) (STEP_Y_SMALL (n) / 2)
 353 #define Y_FRAC_LAST(n)  (Y_FRAC_FIRST (n) + (N_Y_FRAC (n) - 1) * STEP_Y_SMALL (n))
 354
 355 #define STEP_X_SMALL(n) (pixman_fixed_1 / N_X_FRAC (n))
 356 #define STEP_X_BIG(n)   (pixman_fixed_1 - (N_X_FRAC (n) - 1) * STEP_X_SMALL (n))
 357
 358 #define X_FRAC_FIRST(n) (STEP_X_SMALL (n) / 2)
 359 #define X_FRAC_LAST(n)  (X_FRAC_FIRST (n) + (N_X_FRAC (n) - 1) * STEP_X_SMALL (n))
 360
 361 #define RENDER_SAMPLES_X(x, n)                                          \
 362     ((n) == 1? 0 : (pixman_fixed_frac (x) +                             \
 363                     X_FRAC_FIRST (n)) / STEP_X_SMALL (n))
 364
 365 void
 366 pixman_rasterize_edges_accessors (pixman_image_t *image,
 367                                   pixman_edge_t * l,
 368                                   pixman_edge_t * r,
 369                                   pixman_fixed_t  t,
 370                                   pixman_fixed_t  b);
 371
 372 /*
 373  * Implementations
 374  */
 375
 376 typedef struct pixman_implementation_t pixman_implementation_t;
 377
 378 typedef void (*pixman_combine_32_func_t) (pixman_implementation_t *imp,
 379                                           pixman_op_t              op,
 380                                           uint32_t *               dest,
 381                                           const uint32_t *         src,
 382                                           const uint32_t *         mask,
 383                                           int                      width);
 384
 385 typedef void (*pixman_combine_64_func_t) (pixman_implementation_t *imp,
 386                                           pixman_op_t              op,
 387                                           uint64_t *               dest,
 388                                           const uint64_t *         src,
 389                                           const uint64_t *         mask,
 390                                           int                      width);
 391
 392 typedef void (*pixman_composite_func_t) (pixman_implementation_t *imp,
 393                                          pixman_op_t              op,
 394                                          pixman_image_t *         src,
 395                                          pixman_image_t *         mask,
 396                                          pixman_image_t *         dest,
 397                                          int32_t                  src_x,
 398                                          int32_t                  src_y,
 399                                          int32_t                  mask_x,
 400                                          int32_t                  mask_y,
 401                                          int32_t                  dest_x,
 402                                          int32_t                  dest_y,
 403                                          int32_t                  width,
 404                                          int32_t                  height);
 405 typedef pixman_bool_t (*pixman_blt_func_t) (pixman_implementation_t *imp,
 406                                             uint32_t *               src_bits,
 407                                             uint32_t *               dst_bits,
 408                                             int                      src_stride,
 409                                             int                      dst_stride,
 410                                             int                      src_bpp,
 411                                             int                      dst_bpp,
 412                                             int                      src_x,
 413                                             int                      src_y,
 414                                             int                      dst_x,
 415                                             int                      dst_y,
 416                                             int                      width,
 417                                             int                      height);
 418 typedef pixman_bool_t (*pixman_fill_func_t) (pixman_implementation_t *imp,
 419                                              uint32_t *               bits,
 420                                              int                      stride,
 421                                              int                      bpp,
 422                                              int                      x,
 423                                              int                      y,
 424                                              int                      width,
 425                                              int                      height,
 426                                              uint32_t                 xor);
 427
 428 void _pixman_setup_combiner_functions_32 (pixman_implementation_t *imp);
 429 void _pixman_setup_combiner_functions_64 (pixman_implementation_t *imp);
 430
 431 struct pixman_implementation_t
 432 {
 433     pixman_implementation_t *toplevel;
 434     pixman_implementation_t *delegate;
 435
 436     pixman_composite_func_t  composite;
 437     pixman_blt_func_t        blt;
 438     pixman_fill_func_t       fill;
 439
 440     pixman_combine_32_func_t combine_32[PIXMAN_OP_LAST];
 441     pixman_combine_32_func_t combine_32_ca[PIXMAN_OP_LAST];
 442     pixman_combine_64_func_t combine_64[PIXMAN_OP_LAST];
 443     pixman_combine_64_func_t combine_64_ca[PIXMAN_OP_LAST];
 444 };
 445
 446 pixman_implementation_t *
 447 _pixman_implementation_create (pixman_implementation_t *delegate);
 448
 449 void
 450 _pixman_implementation_combine_32 (pixman_implementation_t *imp,
 451                                    pixman_op_t              op,
 452                                    uint32_t *               dest,
 453                                    const uint32_t *         src,
 454                                    const uint32_t *         mask,
 455                                    int                      width);
 456 void
 457 _pixman_implementation_combine_64 (pixman_implementation_t *imp,
 458                                    pixman_op_t              op,
 459                                    uint64_t *               dest,
 460                                    const uint64_t *         src,
 461                                    const uint64_t *         mask,
 462                                    int                      width);
 463 void
 464 _pixman_implementation_combine_32_ca (pixman_implementation_t *imp,
 465                                       pixman_op_t              op,
 466                                       uint32_t *               dest,
 467                                       const uint32_t *         src,
 468                                       const uint32_t *         mask,
 469                                       int                      width);
 470 void
 471 _pixman_implementation_combine_64_ca (pixman_implementation_t *imp,
 472                                       pixman_op_t              op,
 473                                       uint64_t *               dest,
 474                                       const uint64_t *         src,
 475                                       const uint64_t *         mask,
 476                                       int                      width);
 477 void
 478 _pixman_implementation_composite (pixman_implementation_t *imp,
 479                                   pixman_op_t              op,
 480                                   pixman_image_t *         src,
 481                                   pixman_image_t *         mask,
 482                                   pixman_image_t *         dest,
 483                                   int32_t                  src_x,
 484                                   int32_t                  src_y,
 485                                   int32_t                  mask_x,
 486                                   int32_t                  mask_y,
 487                                   int32_t                  dest_x,
 488                                   int32_t                  dest_y,
 489                                   int32_t                  width,
 490                                   int32_t                  height);
 491
 492 pixman_bool_t
 493 _pixman_implementation_blt (pixman_implementation_t *imp,
 494                             uint32_t *               src_bits,
 495                             uint32_t *               dst_bits,
 496                             int                      src_stride,
 497                             int                      dst_stride,
 498                             int                      src_bpp,
 499                             int                      dst_bpp,
 500                             int                      src_x,
 501                             int                      src_y,
 502                             int                      dst_x,
 503                             int                      dst_y,
 504                             int                      width,
 505                             int                      height);
 506
 507 pixman_bool_t
 508 _pixman_implementation_fill (pixman_implementation_t *imp,
 509                              uint32_t *               bits,
 510                              int                      stride,
 511                              int                      bpp,
 512                              int                      x,
 513                              int                      y,
 514                              int                      width,
 515                              int                      height,
 516                              uint32_t                 xor);
 517
 518 /* Specific implementations */
 519 pixman_implementation_t *
 520 _pixman_implementation_create_general (void);
 521
 522 pixman_implementation_t *
 523 _pixman_implementation_create_fast_path (void);
 524
 525 #ifdef USE_MMX
 526 pixman_implementation_t *
 527 _pixman_implementation_create_mmx (void);
 528 #endif
 529
 530 #ifdef USE_SSE2
 531 pixman_implementation_t *
 532 _pixman_implementation_create_sse2 (void);
 533 #endif
 534
 535 #ifdef USE_ARM_SIMD
 536 pixman_implementation_t *
 537 _pixman_implementation_create_arm_simd (void);
 538 #endif
 539
 540 #ifdef USE_ARM_NEON
 541 pixman_implementation_t *
 542 _pixman_implementation_create_arm_neon (void);
 543 #endif
 544
 545 #ifdef USE_VMX
 546 pixman_implementation_t *
 547 _pixman_implementation_create_vmx (void);
 548 #endif
 549
 550 pixman_implementation_t *
 551 _pixman_choose_implementation (void);
 552
 553
 554
 555 /*
 556  * Utilities
 557  */
 558
 559 /* These "formats" both have depth 0, so they
 560  * will never clash with any real ones
 561  */
 562 #define PIXMAN_null             PIXMAN_FORMAT (0, 0, 0, 0, 0, 0)
 563 #define PIXMAN_solid            PIXMAN_FORMAT (0, 1, 0, 0, 0, 0)
 564
 565 #define NEED_COMPONENT_ALPHA            (1 << 0)
 566 #define NEED_PIXBUF                     (1 << 1)
 567 #define NEED_SOLID_MASK                 (1 << 2)
 568
 569 typedef struct
 570 {
 571     pixman_op_t             op;
 572     pixman_format_code_t    src_format;
 573     pixman_format_code_t    mask_format;
 574     pixman_format_code_t    dest_format;
 575     pixman_composite_func_t func;
 576     uint32_t                flags;
 577 } pixman_fast_path_t;
 578
 579 /* Memory allocation helpers */
 580 void *
 581 pixman_malloc_ab (unsigned int n, unsigned int b);
 582
 583 void *
 584 pixman_malloc_abc (unsigned int a, unsigned int b, unsigned int c);
 585
 586 pixman_bool_t
 587 pixman_multiply_overflows_int (unsigned int a, unsigned int b);
 588
 589 pixman_bool_t
 590 pixman_addition_overflows_int (unsigned int a, unsigned int b);
 591
 592 /* Compositing utilities */
 593 pixman_bool_t
 594 _pixman_run_fast_path (const pixman_fast_path_t *paths,
 595                        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
 609 void
 610 _pixman_walk_composite_region (pixman_implementation_t *imp,
 611                                pixman_op_t              op,
 612                                pixman_image_t *         src_image,
 613                                pixman_image_t *         mask_image,
 614                                pixman_image_t *         dst_image,
 615                                int16_t                  src_x,
 616                                int16_t                  src_y,
 617                                int16_t                  mask_x,
 618                                int16_t                  mask_y,
 619                                int16_t                  dest_x,
 620                                int16_t                  dest_y,
 621                                uint16_t                 width,
 622                                uint16_t                 height,
 623                                pixman_composite_func_t  composite_rect);
 624
 625 void
 626 pixman_expand (uint64_t *           dst,
 627                const uint32_t *     src,
 628                pixman_format_code_t format,
 629                int                  width);
 630
 631 void
 632 pixman_contract (uint32_t *      dst,
 633                  const uint64_t *src,
 634                  int             width);
 635
 636
 637 /* Region Helpers */
 638 pixman_bool_t
 639 pixman_region32_copy_from_region16 (pixman_region32_t *dst,
 640                                     pixman_region16_t *src);
 641
 642 pixman_bool_t
 643 pixman_region16_copy_from_region32 (pixman_region16_t *dst,
 644                                     pixman_region32_t *src);
 645
 646
 647 /* Misc macros */
 648
 649 #ifndef FALSE
 650 #   define FALSE 0
 651 #endif
 652
 653 #ifndef TRUE
 654 #   define TRUE 1
 655 #endif
 656
 657 #ifndef MIN
 658 #  define MIN(a, b) ((a < b) ? a : b)
 659 #endif
 660
 661 #ifndef MAX
 662 #  define MAX(a, b) ((a > b) ? a : b)
 663 #endif
 664
 665 /* Integer division that rounds towards -infinity */
 666 #define DIV(a, b)                                          \
 667     ((((a) < 0) == ((b) < 0)) ? (a) / (b) :                \
 668      ((a) - (b) + 1 - (((b) < 0) << 1)) / (b))
 669
 670 /* Modulus that produces the remainder wrt. DIV */
 671 #define MOD(a, b) ((a) < 0 ? ((b) - ((-(a) - 1) % (b))) - 1 : (a) % (b))
 672
 673 #define CLIP(v, low, high) ((v) < (low) ? (low) : ((v) > (high) ? (high) : (v)))
 674
 675 /* Conversion between 8888 and 0565 */
 676
 677 #define CONVERT_8888_TO_0565(s)                                         \
 678     ((((s) >> 3) & 0x001f) |                                            \
 679      (((s) >> 5) & 0x07e0) |                                            \
 680      (((s) >> 8) & 0xf800))
 681
 682 #define CONVERT_0565_TO_0888(s)                                         \
 683     (((((s) << 3) & 0xf8) | (((s) >> 2) & 0x7)) |                       \
 684      ((((s) << 5) & 0xfc00) | (((s) >> 1) & 0x300)) |                   \
 685      ((((s) << 8) & 0xf80000) | (((s) << 3) & 0x70000)))
 686
 687 #define PIXMAN_FORMAT_IS_WIDE(f)                                        \
 688     (PIXMAN_FORMAT_A (f) > 8 ||                                         \
 689      PIXMAN_FORMAT_R (f) > 8 ||                                         \
 690      PIXMAN_FORMAT_G (f) > 8 ||                                         \
 691      PIXMAN_FORMAT_B (f) > 8)
 692
 693 /*
 694  * Various debugging code
 695  */
 696
 697 #undef DEBUG
 698 #define DEBUG 0
 699
 700 #if DEBUG
 701
 702 #define return_if_fail(expr)                                            \
 703     do                                                                  \
 704     {                                                                   \
 705         if (!(expr))                                                    \
 706         {                                                               \
 707             fprintf (stderr, "In %s: %s failed\n", FUNC, # expr);       \
 708             return;                                                     \
 709         }                                                               \
 710     }                                                                   \
 711     while (0)
 712
 713 #define return_val_if_fail(expr, retval)                                \
 714     do                                                                  \
 715     {                                                                   \
 716         if (!(expr))                                                    \
 717         {                                                               \
 718             fprintf (stderr, "In %s: %s failed\n", FUNC, # expr);       \
 719             return (retval);                                            \
 720         }                                                               \
 721     }                                                                   \
 722     while (0)
 723
 724 #else
 725
 726 #define return_if_fail(expr)                                            \
 727     do                                                                  \
 728     {                                                                   \
 729         if (!(expr))                                                    \
 730             return;                                                     \
 731     }                                                                   \
 732     while (0)
 733
 734 #define return_val_if_fail(expr, retval)                                \
 735     do                                                                  \
 736     {                                                                   \
 737         if (!(expr))                                                    \
 738             return (retval);                                            \
 739     }                                                                   \
 740     while (0)
 741
 742 #endif
 743
 744 /*
 745  * Timers
 746  */
 747
 748 #ifdef PIXMAN_TIMERS
 749
 750 static inline uint64_t
 751 oil_profile_stamp_rdtsc (void)
 752 {
 753     uint64_t ts;
 754
 755     __asm__ __volatile__ ("rdtsc\n" : "=A" (ts));
 756     return ts;
 757 }
 758
 759 #define OIL_STAMP oil_profile_stamp_rdtsc
 760
 761 typedef struct pixman_timer_t pixman_timer_t;
 762
 763 struct pixman_timer_t
 764 {
 765     int             initialized;
 766     const char *    name;
 767     uint64_t        n_times;
 768     uint64_t        total;
 769     pixman_timer_t *next;
 770 };
 771
 772 extern int timer_defined;
 773
 774 void pixman_timer_register (pixman_timer_t *timer);
 775
 776 #define TIMER_BEGIN(tname)                                              \
 777     {                                                                   \
 778         static pixman_timer_t timer ## tname;                           \
 779         uint64_t              begin ## tname;                           \
 780                                                                         \
 781         if (!timer ## tname.initialized)                                \
 782         {                                                               \
 783             timer ## tname.initialized = 1;                             \
 784             timer ## tname.name = # tname;                              \
 785             pixman_timer_register (&timer ## tname);                    \
 786         }                                                               \
 787                                                                         \
 788         timer ## tname.n_times++;                                       \
 789         begin ## tname = OIL_STAMP ();
 790
 791 #define TIMER_END(tname)                                                \
 792     timer ## tname.total += OIL_STAMP () - begin ## tname;              \
 793     }
 794
 795 #endif /* PIXMAN_TIMERS */
 796
 797 #endif /* PIXMAN_PRIVATE_H */