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
  11 #ifndef FALSE
  12 #define FALSE 0
  13 #endif
  14
  15 #ifndef TRUE
  16 #define TRUE 1
  17 #endif
  18
  19 #define MSBFirst 0
  20 #define LSBFirst 1
  21
  22 #ifdef WORDS_BIGENDIAN
  23 #  define IMAGE_BYTE_ORDER MSBFirst
  24 #  define BITMAP_BIT_ORDER MSBFirst
  25 #else
  26 #  define IMAGE_BYTE_ORDER LSBFirst
  27 #  define BITMAP_BIT_ORDER LSBFirst
  28 #endif
  29
  30 #undef DEBUG
  31 #define DEBUG 0
  32
  33 #if defined (__GNUC__)
  34 #  define FUNC     ((const char*) (__PRETTY_FUNCTION__))
  35 #elif defined (__sun) || (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L)
  36 #  define FUNC     ((const char*) (__func__))
  37 #else
  38 #  define FUNC     ((const char*) ("???"))
  39 #endif
  40
  41 #ifndef INT16_MIN
  42 # define INT16_MIN              (-32767-1)
  43 #endif
  44
  45 #ifndef INT16_MAX
  46 # define INT16_MAX              (32767)
  47 #endif
  48
  49 #ifndef INT32_MIN
  50 # define INT32_MIN              (-2147483647-1)
  51 #endif
  52
  53 #ifndef INT32_MAX
  54 # define INT32_MAX              (2147483647)
  55 #endif
  56
  57 #ifndef UINT32_MIN
  58 # define UINT32_MIN             (0)
  59 #endif
  60
  61 #ifndef UINT32_MAX
  62 # define UINT32_MAX             (4294967295U)
  63 #endif
  64
  65 #ifndef M_PI
  66 # define M_PI                   3.14159265358979323846
  67 #endif
  68
  69 #ifdef _MSC_VER
  70 /* 'inline' is available only in C++ in MSVC */
  71 #   define inline __inline
  72 #   define force_inline __forceinline
  73 #elif defined __GNUC__
  74 #   define inline __inline__
  75 #   define force_inline __inline__ __attribute__ ((__always_inline__))
  76 #endif
  77
  78 #define FB_SHIFT    5
  79 #define FB_UNIT     (1 << FB_SHIFT)
  80 #define FB_HALFUNIT (1 << (FB_SHIFT-1))
  81 #define FB_MASK     (FB_UNIT - 1)
  82 #define FB_ALLONES  ((uint32_t) -1)
  83
  84 /* Memory allocation helpers */
  85 void *pixman_malloc_ab (unsigned int n, unsigned int b);
  86 void *pixman_malloc_abc (unsigned int a, unsigned int b, unsigned int c);
  87 pixman_bool_t pixman_multiply_overflows_int (unsigned int a, unsigned int b);
  88 pixman_bool_t pixman_addition_overflows_int (unsigned int a, unsigned int b);
  89
  90 #if DEBUG
  91
  92 #define return_if_fail(expr)                                            \
  93     do                                                                  \
  94     {                                                                   \
  95         if (!(expr))                                                    \
  96         {                                                               \
  97             fprintf(stderr, "In %s: %s failed\n", FUNC, #expr);         \
  98             return;                                                     \
  99         }                                                               \
 100     }                                                                   \
 101     while (0)
 102
 103 #define return_val_if_fail(expr, retval)                                \
 104     do                                                                  \
 105     {                                                                   \
 106         if (!(expr))                                                    \
 107         {                                                               \
 108             fprintf(stderr, "In %s: %s failed\n", FUNC, #expr);         \
 109             return (retval);                                            \
 110         }                                                               \
 111     }                                                                   \
 112     while (0)
 113
 114 #else
 115
 116 #define return_if_fail(expr)                                            \
 117     do                                                                  \
 118     {                                                                   \
 119         if (!(expr))                                                    \
 120             return;                                                     \
 121     }                                                                   \
 122     while (0)
 123
 124 #define return_val_if_fail(expr, retval)                                \
 125     do                                                                  \
 126     {                                                                   \
 127         if (!(expr))                                                    \
 128             return (retval);                                            \
 129     }                                                                   \
 130     while (0)
 131
 132 #endif
 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 #define FASTCALL
 151 typedef FASTCALL void (*CombineMaskU32) (uint32_t *src, const uint32_t *mask, int width);
 152 typedef FASTCALL void (*CombineFuncU32) (uint32_t *dest, const uint32_t *src, int width);
 153 typedef FASTCALL void (*CombineFuncC32) (uint32_t *dest, uint32_t *src, uint32_t *mask, int width);
 154 typedef FASTCALL void (*fetchProc32)(bits_image_t *pict, int x, int y, int width,
 155                                      uint32_t *buffer);
 156 typedef FASTCALL uint32_t (*fetchPixelProc32)(bits_image_t *pict, int offset, int line);
 157 typedef FASTCALL void (*storeProc32)(pixman_image_t *, uint32_t *bits,
 158                                      const uint32_t *values, int x, int width,
 159                                      const pixman_indexed_t *);
 160
 161 typedef FASTCALL void (*CombineMaskU64) (uint64_t *src, const uint64_t *mask, int width);
 162 typedef FASTCALL void (*CombineFuncU64) (uint64_t *dest, const uint64_t *src, int width);
 163 typedef FASTCALL void (*CombineFuncC64) (uint64_t *dest, uint64_t *src, uint64_t *mask, int width);
 164 typedef FASTCALL void (*fetchProc64)(bits_image_t *pict, int x, int y, int width,
 165                                      uint64_t *buffer);
 166 typedef FASTCALL uint64_t (*fetchPixelProc64)(bits_image_t *pict, int offset, int line);
 167 typedef FASTCALL void (*storeProc64)(pixman_image_t *, uint32_t *bits,
 168                                      const uint64_t *values, int x, int width,
 169                                      const pixman_indexed_t *);
 170
 171 typedef struct _FbComposeData {
 172     uint8_t      op;
 173     pixman_image_t      *src;
 174     pixman_image_t      *mask;
 175     pixman_image_t      *dest;
 176     int16_t      xSrc;
 177     int16_t      ySrc;
 178     int16_t      xMask;
 179     int16_t      yMask;
 180     int16_t      xDest;
 181     int16_t      yDest;
 182     uint16_t     width;
 183     uint16_t     height;
 184 } FbComposeData;
 185
 186 typedef struct _FbComposeFunctions32 {
 187     CombineFuncU32 *combineU;
 188     CombineFuncC32 *combineC;
 189     CombineMaskU32 combineMaskU;
 190 } FbComposeFunctions32;
 191
 192 typedef struct _FbComposeFunctions64 {
 193     CombineFuncU64 *combineU;
 194     CombineFuncC64 *combineC;
 195     CombineMaskU64 combineMaskU;
 196 } FbComposeFunctions64;
 197
 198 extern FbComposeFunctions32 pixman_composeFunctions;
 199 extern FbComposeFunctions64 pixman_composeFunctions64;
 200
 201 void pixman_composite_rect_general_accessors (const FbComposeData *data,
 202                                               void *src_buffer,
 203                                               void *mask_buffer,
 204                                               void *dest_buffer,
 205                                               const int wide);
 206 void pixman_composite_rect_general (const FbComposeData *data);
 207
 208 fetchProc32 pixman_fetchProcForPicture32 (bits_image_t *);
 209 fetchPixelProc32 pixman_fetchPixelProcForPicture32 (bits_image_t *);
 210 storeProc32 pixman_storeProcForPicture32 (bits_image_t *);
 211 fetchProc32 pixman_fetchProcForPicture32_accessors (bits_image_t *);
 212 fetchPixelProc32 pixman_fetchPixelProcForPicture32_accessors (bits_image_t *);
 213 storeProc32 pixman_storeProcForPicture32_accessors (bits_image_t *);
 214
 215 fetchProc64 pixman_fetchProcForPicture64 (bits_image_t *);
 216 fetchPixelProc64 pixman_fetchPixelProcForPicture64 (bits_image_t *);
 217 storeProc64 pixman_storeProcForPicture64 (bits_image_t *);
 218 fetchProc64 pixman_fetchProcForPicture64_accessors (bits_image_t *);
 219 fetchPixelProc64 pixman_fetchPixelProcForPicture64_accessors (bits_image_t *);
 220 storeProc64 pixman_storeProcForPicture64_accessors (bits_image_t *);
 221
 222 void pixman_expand(uint64_t *dst, const uint32_t *src, pixman_format_code_t, int width);
 223 void pixman_contract(uint32_t *dst, const uint64_t *src, int width);
 224
 225 void pixmanFetchSourcePict(source_image_t *, int x, int y, int width,
 226                            uint32_t *buffer, uint32_t *mask, uint32_t maskBits);
 227 void pixmanFetchSourcePict64(source_image_t *, int x, int y, int width,
 228                              uint64_t *buffer, uint64_t *mask, uint32_t maskBits);
 229
 230 void fbFetchTransformed(bits_image_t *, int x, int y, int width,
 231                         uint32_t *buffer, uint32_t *mask, uint32_t maskBits);
 232 void fbStoreExternalAlpha(bits_image_t *, int x, int y, int width,
 233                           uint32_t *buffer);
 234 void fbFetchExternalAlpha(bits_image_t *, int x, int y, int width,
 235                           uint32_t *buffer, uint32_t *mask, uint32_t maskBits);
 236
 237 void fbFetchTransformed_accessors(bits_image_t *, int x, int y, int width,
 238                                   uint32_t *buffer, uint32_t *mask,
 239                                   uint32_t maskBits);
 240 void fbStoreExternalAlpha_accessors(bits_image_t *, int x, int y, int width,
 241                                     uint32_t *buffer);
 242 void fbFetchExternalAlpha_accessors(bits_image_t *, int x, int y, int width,
 243                                     uint32_t *buffer, uint32_t *mask,
 244                                     uint32_t maskBits);
 245
 246 void fbFetchTransformed64(bits_image_t *, int x, int y, int width,
 247                           uint64_t *buffer, uint64_t *mask, uint32_t maskBits);
 248 void fbStoreExternalAlpha64(bits_image_t *, int x, int y, int width,
 249                             uint64_t *buffer);
 250 void fbFetchExternalAlpha64(bits_image_t *, int x, int y, int width,
 251                             uint64_t *buffer, uint64_t *mask, uint32_t maskBits);
 252
 253 void fbFetchTransformed64_accessors(bits_image_t *, int x, int y, int width,
 254                                     uint64_t *buffer, uint64_t *mask,
 255                                     uint32_t maskBits);
 256 void fbStoreExternalAlpha64_accessors(bits_image_t *, int x, int y, int width,
 257                                       uint64_t *buffer);
 258 void fbFetchExternalAlpha64_accessors(bits_image_t *, int x, int y, int width,
 259                                       uint64_t *buffer, uint64_t *mask,
 260                                       uint32_t maskBits);
 261
 262 /* end */
 263
 264 typedef enum
 265 {
 266     BITS,
 267     LINEAR,
 268     CONICAL,
 269     RADIAL,
 270     SOLID
 271 } image_type_t;
 272
 273 #define IS_SOURCE_IMAGE(img)     (((image_common_t *)img)->type > BITS)
 274
 275 typedef enum
 276 {
 277     SOURCE_IMAGE_CLASS_UNKNOWN,
 278     SOURCE_IMAGE_CLASS_HORIZONTAL,
 279     SOURCE_IMAGE_CLASS_VERTICAL
 280 } source_pict_class_t;
 281
 282 struct point
 283 {
 284     int16_t x, y;
 285 };
 286
 287 struct image_common
 288 {
 289     image_type_t                type;
 290     int32_t                     ref_count;
 291     pixman_region32_t           full_region;
 292     pixman_region32_t           clip_region;
 293     pixman_region32_t          *src_clip;
 294     pixman_bool_t               has_client_clip;
 295     pixman_transform_t         *transform;
 296     pixman_repeat_t             repeat;
 297     pixman_filter_t             filter;
 298     pixman_fixed_t             *filter_params;
 299     int                         n_filter_params;
 300     bits_image_t               *alpha_map;
 301     point_t                     alpha_origin;
 302     pixman_bool_t               component_alpha;
 303     pixman_read_memory_func_t   read_func;
 304     pixman_write_memory_func_t  write_func;
 305 };
 306
 307 struct source_image
 308 {
 309     image_common_t      common;
 310     source_pict_class_t class;
 311 };
 312
 313 struct solid_fill
 314 {
 315     source_image_t      common;
 316     uint32_t            color;          /* FIXME: shouldn't this be a pixman_color_t? */
 317 };
 318
 319 struct gradient
 320 {
 321     source_image_t              common;
 322     int                         n_stops;
 323     pixman_gradient_stop_t *    stops;
 324     int                         stop_range;
 325     uint32_t *                  color_table;
 326     int                         color_table_size;
 327 };
 328
 329 struct linear_gradient
 330 {
 331     gradient_t                  common;
 332     pixman_point_fixed_t        p1;
 333     pixman_point_fixed_t        p2;
 334 };
 335
 336 struct circle
 337 {
 338     pixman_fixed_t x;
 339     pixman_fixed_t y;
 340     pixman_fixed_t radius;
 341 };
 342
 343 struct radial_gradient
 344 {
 345     gradient_t  common;
 346
 347     circle_t    c1;
 348     circle_t    c2;
 349     double      cdx;
 350     double      cdy;
 351     double      dr;
 352     double      A;
 353 };
 354
 355 struct conical_gradient
 356 {
 357     gradient_t                  common;
 358     pixman_point_fixed_t        center;
 359     pixman_fixed_t              angle;
 360 };
 361
 362 struct bits_image
 363 {
 364     image_common_t              common;
 365     pixman_format_code_t        format;
 366     const pixman_indexed_t     *indexed;
 367     int                         width;
 368     int                         height;
 369     uint32_t *                  bits;
 370     uint32_t *                  free_me;
 371     int                         rowstride; /* in number of uint32_t's */
 372 };
 373
 374 union pixman_image
 375 {
 376     image_type_t                type;
 377     image_common_t              common;
 378     bits_image_t                bits;
 379     gradient_t                  gradient;
 380     linear_gradient_t           linear;
 381     conical_gradient_t          conical;
 382     radial_gradient_t           radial;
 383     solid_fill_t                solid;
 384 };
 385
 386
 387 #define LOG2_BITMAP_PAD 5
 388 #define FB_STIP_SHIFT   LOG2_BITMAP_PAD
 389 #define FB_STIP_UNIT    (1 << FB_STIP_SHIFT)
 390 #define FB_STIP_MASK    (FB_STIP_UNIT - 1)
 391 #define FB_STIP_ALLONES ((uint32_t) -1)
 392
 393 #if BITMAP_BIT_ORDER == LSBFirst
 394 #define FbScrLeft(x,n)  ((x) >> (n))
 395 #define FbScrRight(x,n) ((x) << (n))
 396 #define FbLeftStipBits(x,n) ((x) & ((((uint32_t) 1) << (n)) - 1))
 397 #else
 398 #define FbScrLeft(x,n)  ((x) << (n))
 399 #define FbScrRight(x,n) ((x) >> (n))
 400 #define FbLeftStipBits(x,n) ((x) >> (FB_STIP_UNIT - (n)))
 401 #endif
 402
 403 #define FbStipLeft(x,n) FbScrLeft(x,n)
 404 #define FbStipRight(x,n) FbScrRight(x,n)
 405 #define FbStipMask(x,w) (FbStipRight(FB_STIP_ALLONES,(x) & FB_STIP_MASK) & \
 406                          FbStipLeft(FB_STIP_ALLONES,(FB_STIP_UNIT - ((x)+(w))) & FB_STIP_MASK))
 407
 408 #define FbLeftMask(x)       ( ((x) & FB_MASK) ? \
 409                               FbScrRight(FB_ALLONES,(x) & FB_MASK) : 0)
 410 #define FbRightMask(x)      ( ((FB_UNIT - (x)) & FB_MASK) ? \
 411                               FbScrLeft(FB_ALLONES,(FB_UNIT - (x)) & FB_MASK) : 0)
 412
 413 #define FbMaskBits(x,w,l,n,r) {                                         \
 414         n = (w); \
 415         r = FbRightMask((x)+n); \
 416         l = FbLeftMask(x); \
 417         if (l) { \
 418             n -= FB_UNIT - ((x) & FB_MASK); \
 419             if (n < 0) { \
 420                 n = 0; \
 421                 l &= r; \
 422                 r = 0; \
 423             } \
 424         } \
 425         n >>= FB_SHIFT; \
 426     }
 427
 428 #if IMAGE_BYTE_ORDER == MSBFirst
 429 #define Fetch24(img, a)  ((unsigned long) (a) & 1 ?           \
 430     ((READ(img, a) << 16) | READ(img, (uint16_t *) ((a)+1))) : \
 431     ((READ(img, (uint16_t *) (a)) << 8) | READ(img, (a)+2)))
 432 #define Store24(img,a,v) ((unsigned long) (a) & 1 ? \
 433     (WRITE(img, a, (uint8_t) ((v) >> 16)),                \
 434      WRITE(img, (uint16_t *) ((a)+1), (uint16_t) (v))) :  \
 435     (WRITE(img, (uint16_t *) (a), (uint16_t) ((v) >> 8)), \
 436      WRITE(img, (a)+2, (uint8_t) (v))))
 437 #else
 438 #define Fetch24(img,a)  ((unsigned long) (a) & 1 ?                           \
 439     (READ(img, a) | (READ(img, (uint16_t *) ((a)+1)) << 8)) : \
 440     (READ(img, (uint16_t *) (a)) | (READ(img, (a)+2) << 16)))
 441 #define Store24(img,a,v) ((unsigned long) (a) & 1 ? \
 442     (WRITE(img, a, (uint8_t) (v)),                              \
 443      WRITE(img, (uint16_t *) ((a)+1), (uint16_t) ((v) >> 8))) : \
 444     (WRITE(img, (uint16_t *) (a), (uint16_t) (v)),              \
 445      WRITE(img, (a)+2, (uint8_t) ((v) >> 16))))
 446 #endif
 447
 448 #define CvtR8G8B8toY15(s)       (((((s) >> 16) & 0xff) * 153 + \
 449                                   (((s) >>  8) & 0xff) * 301 +          \
 450                                   (((s)      ) & 0xff) * 58) >> 2)
 451 #define miCvtR8G8B8to15(s) ((((s) >> 3) & 0x001f) |  \
 452                             (((s) >> 6) & 0x03e0) |  \
 453                             (((s) >> 9) & 0x7c00))
 454 #define miIndexToEnt15(mif,rgb15) ((mif)->ent[rgb15])
 455 #define miIndexToEnt24(mif,rgb24) miIndexToEnt15(mif,miCvtR8G8B8to15(rgb24))
 456
 457 #define miIndexToEntY24(mif,rgb24) ((mif)->ent[CvtR8G8B8toY15(rgb24)])
 458
 459
 460 #define FbIntMult(a,b,t) ( (t) = (a) * (b) + 0x80, ( ( ( (t)>>8 ) + (t) )>>8 ) )
 461 #define FbIntDiv(a,b)    (((uint16_t) (a) * 255) / (b))
 462
 463 #define FbGet8(v,i)   ((uint16_t) (uint8_t) ((v) >> i))
 464
 465
 466 #define cvt8888to0565(s)    ((((s) >> 3) & 0x001f) | \
 467                              (((s) >> 5) & 0x07e0) | \
 468                              (((s) >> 8) & 0xf800))
 469 #define cvt0565to0888(s)    (((((s) << 3) & 0xf8) | (((s) >> 2) & 0x7)) | \
 470                              ((((s) << 5) & 0xfc00) | (((s) >> 1) & 0x300)) | \
 471                              ((((s) << 8) & 0xf80000) | (((s) << 3) & 0x70000)))
 472
 473 /*
 474  * There are two ways of handling alpha -- either as a single unified value or
 475  * a separate value for each component, hence each macro must have two
 476  * versions.  The unified alpha version has a 'U' at the end of the name,
 477  * the component version has a 'C'.  Similarly, functions which deal with
 478  * this difference will have two versions using the same convention.
 479  */
 480
 481 #define FbOverU(x,y,i,a,t) ((t) = FbIntMult(FbGet8(y,i),(a),(t)) + FbGet8(x,i), \
 482                             (uint32_t) ((uint8_t) ((t) | (0 - ((t) >> 8)))) << (i))
 483
 484 #define FbOverC(x,y,i,a,t) ((t) = FbIntMult(FbGet8(y,i),FbGet8(a,i),(t)) + FbGet8(x,i), \
 485                             (uint32_t) ((uint8_t) ((t) | (0 - ((t) >> 8)))) << (i))
 486
 487 #define FbInU(x,i,a,t) ((uint32_t) FbIntMult(FbGet8(x,i),(a),(t)) << (i))
 488
 489 #define FbInC(x,i,a,t) ((uint32_t) FbIntMult(FbGet8(x,i),FbGet8(a,i),(t)) << (i))
 490
 491 #define FbAdd(x,y,i,t)  ((t) = FbGet8(x,i) + FbGet8(y,i),               \
 492                          (uint32_t) ((uint8_t) ((t) | (0 - ((t) >> 8)))) << (i))
 493
 494 #define div_255(x) (((x) + 0x80 + (((x) + 0x80) >> 8)) >> 8)
 495 #define div_65535(x) (((x) + 0x8000 + (((x) + 0x8000) >> 16)) >> 16)
 496
 497 #define MOD(a,b) ((a) < 0 ? ((b) - ((-(a) - 1) % (b))) - 1 : (a) % (b))
 498
 499 #define DIV(a,b) ((((a) < 0) == ((b) < 0)) ? (a) / (b) :                \
 500                   ((a) - (b) + 1 - (((b) < 0) << 1)) / (b))
 501
 502 #define CLIP(a,b,c) ((a) < (b) ? (b) : ((a) > (c) ? (c) : (a)))
 503
 504 #if 0
 505 /* FIXME: the MOD macro above is equivalent, but faster I think */
 506 #define mod(a,b) ((b) == 1 ? 0 : (a) >= 0 ? (a) % (b) : (b) - (-a) % (b))
 507 #endif
 508
 509 /* FIXME: the (void)__read_func hides lots of warnings (which is what they
 510  * are supposed to do), but some of them are real. For example the one
 511  * where Fetch4 doesn't have a READ
 512  */
 513
 514 #if 0
 515 /* Framebuffer access support macros */
 516 #define ACCESS_MEM(code)                                                \
 517     do {                                                                \
 518         const image_common_t *const com__ =                             \
 519             (image_common_t *)image;                                    \
 520                                                                         \
 521         if (!com__->read_func && !com__->write_func)                    \
 522         {                                                               \
 523             const int do_access__ = 0;                                  \
 524             const pixman_read_memory_func_t read_func__ = NULL;         \
 525             const pixman_write_memory_func_t write_func__ = NULL;       \
 526             (void)read_func__;                                          \
 527             (void)write_func__;                                         \
 528             (void)do_access__;                                          \
 529                                                                         \
 530             {code}                                                      \
 531         }                                                               \
 532         else                                                            \
 533         {                                                               \
 534             const int do_access__ = 1;                                  \
 535             const pixman_read_memory_func_t read_func__ =               \
 536                 com__->read_func;                                       \
 537             const pixman_write_memory_func_t write_func__ =             \
 538                 com__->write_func;                                      \
 539             (void)read_func__;                                          \
 540             (void)write_func__;                                         \
 541             (void)do_access__;                                          \
 542                                                                         \
 543             {code}                                                      \
 544         }                                                               \
 545     } while (0)
 546 #endif
 547
 548 #ifdef PIXMAN_FB_ACCESSORS
 549
 550 #define ACCESS(sym) sym##_accessors
 551
 552 #define READ(img, ptr)                                                  \
 553     ((img)->common.read_func ((ptr), sizeof(*(ptr))))
 554 #define WRITE(img, ptr,val)                                             \
 555     ((img)->common.write_func ((ptr), (val), sizeof (*(ptr))))
 556
 557 #define MEMCPY_WRAPPED(img, dst, src, size)                             \
 558     do {                                                                \
 559         size_t _i;                                                      \
 560         uint8_t *_dst = (uint8_t*)(dst), *_src = (uint8_t*)(src);       \
 561         for(_i = 0; _i < size; _i++) {                                  \
 562             WRITE((img), _dst +_i, READ((img), _src + _i));             \
 563         }                                                               \
 564     } while (0)
 565
 566 #define MEMSET_WRAPPED(img, dst, val, size)                             \
 567     do {                                                                \
 568         size_t _i;                                                      \
 569         uint8_t *_dst = (uint8_t*)(dst);                                \
 570         for(_i = 0; _i < (size_t) size; _i++) {                         \
 571             WRITE((img), _dst +_i, (val));                              \
 572         }                                                               \
 573     } while (0)
 574
 575 #else
 576
 577 #define ACCESS(sym) sym
 578
 579 #define READ(img, ptr)          (*(ptr))
 580 #define WRITE(img, ptr, val)    (*(ptr) = (val))
 581 #define MEMCPY_WRAPPED(img, dst, src, size)                                     \
 582     memcpy(dst, src, size)
 583 #define MEMSET_WRAPPED(img, dst, val, size)                                     \
 584     memset(dst, val, size)
 585
 586 #endif
 587
 588 #define fbComposeGetSolid(img, res, fmt)                                \
 589     do                                                                  \
 590     {                                                                   \
 591         pixman_format_code_t format__;                                  \
 592         if (img->type == SOLID)                                         \
 593         {                                                               \
 594             format__ = PIXMAN_a8r8g8b8;                                 \
 595             (res) = img->solid.color;                                   \
 596         }                                                               \
 597         else                                                            \
 598         {                                                               \
 599             uint32_t           *bits__   = (img)->bits.bits;            \
 600             format__ = (img)->bits.format;                              \
 601                                                                         \
 602             switch (PIXMAN_FORMAT_BPP((img)->bits.format))              \
 603             {                                                           \
 604             case 32:                                                    \
 605                 (res) = READ(img, (uint32_t *)bits__);                  \
 606                 break;                                                  \
 607             case 24:                                                    \
 608                 (res) = Fetch24(img, (uint8_t *) bits__);                       \
 609                 break;                                                  \
 610             case 16:                                                    \
 611                 (res) = READ(img, (uint16_t *) bits__);                 \
 612                 (res) = cvt0565to0888(res);                             \
 613                 break;                                                  \
 614             case 8:                                                     \
 615                 (res) = READ(img, (uint8_t *) bits__);                  \
 616                 (res) = (res) << 24;                                    \
 617                 break;                                                  \
 618             case 1:                                                     \
 619                 (res) = READ(img, (uint32_t *) bits__);                 \
 620                 (res) = FbLeftStipBits((res),1) ? 0xff000000 : 0x00000000; \
 621                 break;                                                  \
 622             default:                                                    \
 623                 return;                                                 \
 624             }                                                           \
 625             /* manage missing src alpha */                              \
 626             if (!PIXMAN_FORMAT_A((img)->bits.format))                   \
 627                 (res) |= 0xff000000;                                    \
 628         }                                                               \
 629                                                                         \
 630         /* If necessary, convert RGB <--> BGR. */                       \
 631         if (PIXMAN_FORMAT_TYPE (format__) != PIXMAN_FORMAT_TYPE(fmt))   \
 632         {                                                               \
 633             (res) = ((((res) & 0xff000000) >>  0) |                     \
 634                      (((res) & 0x00ff0000) >> 16) |                     \
 635                      (((res) & 0x0000ff00) >>  0) |                     \
 636                      (((res) & 0x000000ff) << 16));                     \
 637         }                                                               \
 638     }                                                                   \
 639     while (0)
 640
 641 #define fbComposeGetStart(pict,x,y,type,out_stride,line,mul) do {       \
 642         uint32_t        *__bits__;                                      \
 643         int             __stride__;                                     \
 644         int             __bpp__;                                        \
 645                                                                         \
 646         __bits__ = pict->bits.bits;                                     \
 647         __stride__ = pict->bits.rowstride;                              \
 648         __bpp__ = PIXMAN_FORMAT_BPP(pict->bits.format);                 \
 649         (out_stride) = __stride__ * (int) sizeof (uint32_t) / (int) sizeof (type);      \
 650         (line) = ((type *) __bits__) +                                  \
 651             (out_stride) * (y) + (mul) * (x);                           \
 652     } while (0)
 653
 654
 655 #define PIXMAN_FORMAT_16BPC(f)  (PIXMAN_FORMAT_A(f) > 8 || \
 656                                  PIXMAN_FORMAT_R(f) > 8 || \
 657                                  PIXMAN_FORMAT_G(f) > 8 || \
 658                                  PIXMAN_FORMAT_B(f) > 8)
 659 /*
 660  * Edges
 661  */
 662
 663 #define MAX_ALPHA(n)    ((1 << (n)) - 1)
 664 #define N_Y_FRAC(n)     ((n) == 1 ? 1 : (1 << ((n)/2)) - 1)
 665 #define N_X_FRAC(n)     ((n) == 1 ? 1 : (1 << ((n)/2)) + 1)
 666
 667 #define STEP_Y_SMALL(n) (pixman_fixed_1 / N_Y_FRAC(n))
 668 #define STEP_Y_BIG(n)   (pixman_fixed_1 - (N_Y_FRAC(n) - 1) * STEP_Y_SMALL(n))
 669
 670 #define Y_FRAC_FIRST(n) (STEP_Y_SMALL(n) / 2)
 671 #define Y_FRAC_LAST(n)  (Y_FRAC_FIRST(n) + (N_Y_FRAC(n) - 1) * STEP_Y_SMALL(n))
 672
 673 #define STEP_X_SMALL(n) (pixman_fixed_1 / N_X_FRAC(n))
 674 #define STEP_X_BIG(n)   (pixman_fixed_1 - (N_X_FRAC(n) - 1) * STEP_X_SMALL(n))
 675
 676 #define X_FRAC_FIRST(n) (STEP_X_SMALL(n) / 2)
 677 #define X_FRAC_LAST(n)  (X_FRAC_FIRST(n) + (N_X_FRAC(n) - 1) * STEP_X_SMALL(n))
 678
 679 #define RenderSamplesX(x,n)     ((n) == 1 ? 0 : (pixman_fixed_frac (x) + X_FRAC_FIRST(n)) / STEP_X_SMALL(n))
 680
 681 /*
 682  * Step across a small sample grid gap
 683  */
 684 #define RenderEdgeStepSmall(edge) { \
 685     edge->x += edge->stepx_small;   \
 686     edge->e += edge->dx_small;      \
 687     if (edge->e > 0)                \
 688     {                               \
 689         edge->e -= edge->dy;        \
 690         edge->x += edge->signdx;    \
 691     }                               \
 692 }
 693
 694 /*
 695  * Step across a large sample grid gap
 696  */
 697 #define RenderEdgeStepBig(edge) {   \
 698     edge->x += edge->stepx_big;     \
 699     edge->e += edge->dx_big;        \
 700     if (edge->e > 0)                \
 701     {                               \
 702         edge->e -= edge->dy;        \
 703         edge->x += edge->signdx;    \
 704     }                               \
 705 }
 706
 707 void
 708 pixman_rasterize_edges_accessors (pixman_image_t *image,
 709                                   pixman_edge_t *l,
 710                                   pixman_edge_t *r,
 711                                   pixman_fixed_t        t,
 712                                   pixman_fixed_t        b);
 713
 714 pixman_bool_t
 715 pixman_image_is_opaque(pixman_image_t *image);
 716
 717 pixman_bool_t
 718 pixman_image_can_get_solid (pixman_image_t *image);
 719
 720 pixman_bool_t
 721 pixman_compute_composite_region32 (pixman_region32_t *  pRegion,
 722                                    pixman_image_t *     pSrc,
 723                                    pixman_image_t *     pMask,
 724                                    pixman_image_t *     pDst,
 725                                    int16_t              xSrc,
 726                                    int16_t              ySrc,
 727                                    int16_t              xMask,
 728                                    int16_t              yMask,
 729                                    int16_t              xDst,
 730                                    int16_t              yDst,
 731                                    uint16_t             width,
 732                                    uint16_t             height);
 733
 734 /* GCC visibility */
 735 #if defined(__GNUC__) && __GNUC__ >= 4
 736 #define PIXMAN_EXPORT __attribute__ ((visibility("default")))
 737 /* Sun Studio 8 visibility */
 738 #elif defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550)
 739 #define PIXMAN_EXPORT __global
 740 #else
 741 #define PIXMAN_EXPORT
 742 #endif
 743
 744 /* Region Helpers */
 745 pixman_bool_t pixman_region32_copy_from_region16 (pixman_region32_t *dst,
 746                                                   pixman_region16_t *src);
 747 pixman_bool_t pixman_region16_copy_from_region32 (pixman_region16_t *dst,
 748                                                   pixman_region32_t *src);
 749 void pixman_region_internal_set_static_pointers (pixman_box16_t *empty_box,
 750                                                  pixman_region16_data_t *empty_data,
 751                                                  pixman_region16_data_t *broken_data);
 752
 753 #ifdef PIXMAN_TIMING
 754
 755 /* Timing */
 756 static inline uint64_t
 757 oil_profile_stamp_rdtsc (void)
 758 {
 759     uint64_t ts;
 760     __asm__ __volatile__("rdtsc\n" : "=A" (ts));
 761     return ts;
 762 }
 763 #define OIL_STAMP oil_profile_stamp_rdtsc
 764
 765 typedef struct PixmanTimer PixmanTimer;
 766
 767 struct PixmanTimer
 768 {
 769     int initialized;
 770     const char *name;
 771     uint64_t n_times;
 772     uint64_t total;
 773     PixmanTimer *next;
 774 };
 775
 776 extern int timer_defined;
 777 void pixman_timer_register (PixmanTimer *timer);
 778
 779 #define TIMER_BEGIN(tname)                                              \
 780     {                                                                   \
 781         static PixmanTimer      timer##tname;                           \
 782         uint64_t                begin##tname;                           \
 783                                                                         \
 784         if (!timer##tname.initialized)                                  \
 785         {                                                               \
 786             timer##tname.initialized = 1;                               \
 787             timer##tname.name = #tname;                                 \
 788             pixman_timer_register (&timer##tname);                      \
 789         }                                                               \
 790                                                                         \
 791         timer##tname.n_times++;                                         \
 792         begin##tname = OIL_STAMP();
 793
 794 #define TIMER_END(tname)                                                \
 795         timer##tname.total += OIL_STAMP() - begin##tname;               \
 796     }
 797
 798 #endif /* PIXMAN_TIMING */
 799
 800 #endif /* PIXMAN_PRIVATE_H */