rom/graphics/graphics_intern.h

   1 #ifndef GRAPHICS_INTERN_H
   2 #define GRAPHICS_INTERN_H
   3 /*
   4     Copyright © 1995-2011, The AROS Development Team. All rights reserved.
   5     $Id$
   6
   7     Desc: Internal header file for graphics.library
   8     Lang: english
   9 */
  10
  11 #include <aros/libcall.h>
  12 #include <exec/execbase.h>
  13 #include <exec/lists.h>
  14 #include <exec/nodes.h>
  15 #include <exec/semaphores.h>
  16 #include <graphics/gfxbase.h>
  17 #include <graphics/text.h>
  18 #include <graphics/rastport.h>
  19 #include <graphics/regions.h>
  20 #include <oop/oop.h>
  21 #include <graphics/view.h>
  22 #include <hidd/graphics.h>
  23 #include <exec/memory.h>
  24 #include <proto/exec.h>
  25 #include <graphics/scale.h>
  26
  27 #include "fontsupport.h"
  28 #include "objcache.h"
  29
  30 #define BITMAP_CLIPPING         1
  31 #define REGIONS_USE_MEMPOOL     1
  32 /* Setting BMDEPTH_COMPATIBILITY to 1 will cause bitmap->Depth
  33    to be never bigger than 8. The same seems to be the case under
  34    AmigaOS with CyberGraphX/Picasso96. GetBitMapAttr() OTOH will
  35    actually return the real depth. */
  36 #define BMDEPTH_COMPATIBILITY   1
  37 #define SIZERECTBUF             128
  38
  39 struct RegionRectangleExt
  40 {
  41     struct RegionRectangle     RR;
  42     IPTR                       Counter;
  43 };
  44
  45 struct RegionRectangleExtChunk
  46 {
  47      struct RegionRectangleExt       Rects[SIZERECTBUF];
  48      struct RegionRectangleExtChunk *FirstChunk;
  49 };
  50
  51 #define RRE(x)     ((struct RegionRectangleExt *)(x))
  52 #define Counter(x) (RRE(x)->Counter)
  53 #define Chunk(x)   ((x) ? ((struct RegionRectangleExtChunk *)&RRE(x)[-Counter(x)]) : NULL)
  54 #define Head(x)    ((x) ? (&((struct RegionRectangleExtChunk *)&RRE(x)[-Counter(x)])->FirstChunk->Rects[0].RR) : NULL)
  55
  56 /* PaletteExtra internals */
  57
  58 typedef WORD PalExtra_RefCnt_Type;
  59 typedef WORD PalExtra_AllocList_Type;
  60
  61 #define PALEXTRA_REFCNT(pe,n)       (((PalExtra_RefCnt_Type *)(pe)->pe_RefCnt)[(n)])
  62 #define PALEXTRA_ALLOCLIST(pe,n)    (((PalExtra_AllocList_Type *)(pe)->pe_AllocList)[(n)])
  63
  64 /*
  65  * Display mode database item. A pointer to this structure is used as a DisplayInfoHandle.
  66  * In future, if needed, this structure can be extended to hold static bunches of associated
  67  * DisplayInfoData.
  68  */
  69
  70 struct monitor_driverdata;
  71
  72 struct DisplayInfoHandle
  73 {
  74     HIDDT_ModeID               id;      /* HIDD Mode ID (without card ID)           */
  75     struct monitor_driverdata *drv;     /* Points back to display driver descriptor */
  76 };
  77
  78 #define DIH(x) ((struct DisplayInfoHandle *)x)
  79
  80 /* Monitor driver data. Describes a single physical display. */
  81 struct monitor_driverdata
  82 {
  83     struct monitor_driverdata *next;            /* Next driver data in chain                      */
  84     ULONG                      id;              /* Card ID (part of display mode ID)              */
  85     ULONG                      mask;            /* Mask of mode ID                                */
  86     OOP_Object                *gfxhidd;         /* Graphics driver to use (can be fakegfx object) */
  87     UWORD                      flags;           /* Flags, see below                               */
  88
  89     APTR                       userdata;        /* Associated data from notification callback     */
  90     struct HIDD_ViewPortData  *display;         /* What is currently displayed                    */
  91
  92     /* FakeGfx-related */
  93     OOP_Object                *gfxhidd_orig;    /* Real graphics driver object                    */
  94
  95     /* Composer-related */
  96     OOP_Object                *composer;        /* composition HIDD object                        */
  97
  98     /* Framebuffer stuff */
  99     struct BitMap             *frontbm;         /* Currently shown bitmap                         */
 100     OOP_Object                *framebuffer;     /* Framebuffer bitmap object                      */
 101     OOP_Object                *bm_bak;          /* Original shown bitmap object                   */
 102     OOP_Object                *colmap_bak;      /* Original colormap object of shown bitmap       */
 103     HIDDT_ColorModel          colmod_bak;       /* Original colormodel of shown bitmap            */
 104
 105     /* Display mode database. */
 106     struct DisplayInfoHandle  modes[1];         /* Display modes array                            */
 107 };
 108
 109 /* Driver flags */
 110 #define DF_BootMode    0x0001   /* Boot mode driver                             */
 111 #define DF_UseFakeGfx  0x0002   /* Software mouse sprite is in use              */
 112 #define DF_SoftCompose 0x0004   /* Software screen composition requested        */
 113 #define DF_DirectFB    0x0008   /* Driver uses a direct-mode framebuffer        */
 114
 115 /* Common driver data data to all monitors */
 116 struct common_driverdata
 117 {
 118     /* The order of these fields match struct monitor_driverdata */
 119     struct monitor_driverdata *monitors;                /* First monitor driver            */
 120     ULONG                      invalid_id;              /* INVALID_ID, for GET_BM_MODEID() */
 121     ULONG                      last_id;                 /* Last card ID                    */
 122     OOP_Object                *memorygfx;               /* Memory graphics driver          */
 123     UWORD                      flags;                   /* Always zero                     */
 124
 125     /* End of driverdata */
 126     APTR                       notify_data;                   /* User data for notification callback  */
 127     APTR (*DriverNotify)(APTR obj, BOOL add, APTR userdata); /* Display driver notification callback */
 128     struct SignalSemaphore     displaydb_sem;           /* Display mode database semaphore */
 129
 130     ObjectCache               *gc_cache;                /* GC cache                        */
 131     ObjectCache               *planarbm_cache;          /* Planar bitmaps cache            */
 132
 133     /* HIDD classes */
 134     OOP_Class                 *fakegfxclass;            /* Fakegfx (SW sprite) classes     */
 135     OOP_Class                 *fakefbclass;
 136     OOP_Class                 *composerClass;           /* Composer class                  */
 137     OOP_Class                 *gcClass;                 /* GC class                        */
 138
 139     /* Attribute bases */
 140     OOP_AttrBase             hiddBitMapAttrBase;
 141     OOP_AttrBase             hiddGCAttrBase;
 142     OOP_AttrBase             hiddSyncAttrBase;
 143     OOP_AttrBase             hiddPixFmtAttrBase;
 144     OOP_AttrBase             hiddPlanarBMAttrBase;
 145     OOP_AttrBase             hiddGfxAttrBase;
 146     OOP_AttrBase             hiddFakeGfxHiddAttrBase;
 147     OOP_AttrBase             hiddFakeFBAttrBase;
 148     OOP_AttrBase             hiddCompositingAttrBase;
 149 };
 150
 151 #define CDD(base)           ((struct common_driverdata *)&PrivGBase(base)->shared_driverdata)
 152
 153 #define __IHidd_BitMap          CDD(GfxBase)->hiddBitMapAttrBase
 154 #define __IHidd_GC              CDD(GfxBase)->hiddGCAttrBase
 155 #define __IHidd_Sync            CDD(GfxBase)->hiddSyncAttrBase
 156 #define __IHidd_PixFmt          CDD(GfxBase)->hiddPixFmtAttrBase
 157 #define __IHidd_PlanarBM        CDD(GfxBase)->hiddPlanarBMAttrBase
 158 #define __IHidd_Gfx             CDD(GfxBase)->hiddGfxAttrBase
 159 #define __IHidd_FakeGfxHidd     CDD(GfxBase)->hiddFakeGfxHiddAttrBase
 160 #define __IHidd_FakeFB          CDD(GfxBase)->hiddFakeFBAttrBase
 161 #define HiddCompositingAttrBase CDD(GfxBase)->hiddCompositingAttrBase
 162
 163 /* Hashtable sizes. Must be powers of two */
 164 #define GFXASSOCIATE_HASHSIZE   8
 165 #define TFE_HASHTABSIZE         16
 166 #define DRIVERDATALIST_HASHSIZE 256
 167
 168 /* Internal GFXBase struct */
 169 struct GfxBase_intern
 170 {
 171     struct GfxBase              gfxbase;
 172
 173     ULONG                       displays;            /* Number of display drivers installed in the system        */
 174     struct common_driverdata    shared_driverdata;   /* Driver data shared between all monitors (allocated once) */
 175     struct SignalSemaphore      monitors_sema;       /* Monitor list semaphore                                   */
 176     struct SignalSemaphore      hashtab_sema;        /* hash_table arbitration semaphore                         */
 177     struct SignalSemaphore      view_sema;           /* ActiView arbitration semaphore                           */
 178
 179     /* TextFontExtension pool */
 180     struct tfe_hashnode         * tfe_hashtab[TFE_HASHTABSIZE];
 181     struct SignalSemaphore      tfe_hashtab_sema;
 182     struct SignalSemaphore      fontsem;
 183
 184 #if REGIONS_USE_MEMPOOL
 185     /* Regions pool */
 186     struct SignalSemaphore      regionsem;
 187     APTR                        regionpool;
 188     struct MinList              ChunkPoolList;
 189 #endif
 190
 191     /* Semaphores */
 192     struct SignalSemaphore      blit_sema;
 193
 194     /* Private library bases */
 195     struct Library             *CyberGfxBase;
 196     struct Library             *OOPBase;
 197     struct Library             *UtilityBase;
 198
 199     /* Private HIDD method bases */
 200     OOP_MethodID                HiddBitMapBase;
 201     OOP_MethodID                HiddColorMapBase;
 202     OOP_MethodID                HiddGCBase;
 203     OOP_MethodID                HiddGfxBase;
 204     OOP_MethodID                HiddPlanarBMBase;
 205     OOP_MethodID                HiddCompositingMethodBase;
 206 };
 207
 208
 209 /* Macros */
 210
 211 #define PrivGBase(x)            ((struct GfxBase_intern *)x)
 212 /* FIXME: Remove these #define xxxBase hacks
 213    Do not use this in new code !
 214 */
 215 #define HiddBitMapBase          (PrivGBase(GfxBase)->HiddBitMapBase)
 216 #define HiddColorMapBase        (PrivGBase(GfxBase)->HiddColorMapBase)
 217 #define HiddGCBase              (PrivGBase(GfxBase)->HiddGCBase)
 218 #define HiddGfxBase             (PrivGBase(GfxBase)->HiddGfxBase)
 219 #define HiddPlanarBMBase        (PrivGBase(GfxBase)->HiddPlanarBMBase)
 220
 221 /* struct Utilitybase is used in the following file so include it
 222    before defining Utilitybase
 223 */
 224 #include <proto/utility.h>
 225 #define CyberGfxBase            (PrivGBase(GfxBase)->CyberGfxBase)
 226 #define OOPBase                 (PrivGBase(GfxBase)->OOPBase)
 227 #define UtilityBase             (PrivGBase(GfxBase)->UtilityBase)
 228 #define SysBase                 (GfxBase->ExecBase)
 229
 230 #define WIDTH_TO_BYTES(width)   ((( (width) + 15) & ~15) >> 3)
 231 #define WIDTH_TO_WORDS(width)   ((( (width) + 15) & ~15) >> 4)
 232
 233 #define XCOORD_TO_BYTEIDX( x )  (( x ) >> 3)
 234 #define XCOORD_TO_WORDIDX( x )  (( x ) >> 4)
 235
 236 #define COORD_TO_BYTEIDX(x, y, bytes_per_row)   \
 237                                 ( ( (y) * (bytes_per_row)) + XCOORD_TO_BYTEIDX(x))
 238
 239 #define CHUNKY8_COORD_TO_BYTEIDX(x, y, bytes_per_row)   \
 240                                 ( ( (y) * (bytes_per_row)) + (x) )
 241
 242 #define XCOORD_TO_MASK(x)       (128L >> ((x) & 0x07))
 243
 244 /* For vsprite sorting */
 245
 246 #define JOIN_XY_COORDS(x,y)     (LONG)( ( ((UWORD)(y)) << 16) + ( ( ((UWORD)(x)) + 0x8000 ) & 0xFFFF ) )
 247
 248 #define TFE(tfe)                (*(struct TextFontExtension**)&tfe)
 249
 250 #define TFE_MATCHWORD           0xDFE7 /* randomly invented */
 251
 252 /* Defines for flags in areainfo->FlagPtr */
 253
 254 #define AREAINFOFLAG_MOVE       0x00
 255 #define AREAINFOFLAG_DRAW       0x01
 256 #define AREAINFOFLAG_CLOSEDRAW  0x02
 257 #define AREAINFOFLAG_ELLIPSE    0x03
 258
 259 /* Forward declaration */
 260 struct ViewPort;
 261
 262 /* Hash index calculation */
 263 extern ULONG CalcHashIndex(IPTR n, UWORD size);
 264
 265 struct gfx_driverdata *AllocDriverData(struct RastPort *rp, BOOL alloc, struct GfxBase *GfxBase);
 266
 267 /* a function needed by ClipBlit */
 268 void internal_ClipBlit(struct RastPort * srcRP,
 269                        WORD xSrc,
 270                        WORD ySrc,
 271                        struct RastPort * destRP,
 272                        WORD xDest,
 273                        WORD yDest,
 274                        WORD xSize,
 275                        WORD ySize,
 276                        UBYTE minterm,
 277                        struct GfxBase * GfxBase);
 278
 279 /* Driver prototypes */
 280
 281 typedef ULONG (*VIEW_FUNC)(struct HIDD_ViewPortData *vpd, struct View *v, struct monitor_driverdata *mdd, struct GfxBase *GfxBase);
 282
 283 extern ULONG driver_PrepareViewPorts(struct HIDD_ViewPortData *vpd, struct View *v, struct monitor_driverdata *mdd, struct GfxBase *GfxBase);
 284 extern ULONG driver_LoadViewPorts(struct HIDD_ViewPortData *vpd, struct View *v, struct monitor_driverdata *mdd, struct GfxBase *GfxBase);
 285 extern struct monitor_driverdata *driver_Setup(OOP_Object *gfxhidd, struct GfxBase *GfxBase);
 286 extern void driver_Expunge(struct monitor_driverdata *mdd, struct GfxBase *GfxBase);
 287 extern struct HIDD_ViewPortData *driver_FindViewPorts(struct View *view, struct monitor_driverdata *mdd, struct GfxBase *GfxBase);
 288 extern ULONG DoViewFunction(struct View *view, VIEW_FUNC fn, struct GfxBase *GfxBase);
 289 extern void InstallFB(struct monitor_driverdata *mdd, struct GfxBase *GfxBase);
 290 extern void UninstallFB(struct monitor_driverdata *mdd);
 291
 292 /* functions in support.c */
 293 extern BOOL pattern_pen(struct RastPort *rp
 294         , WORD x, WORD y
 295         , ULONG apen, ULONG bpen
 296         , ULONG *pixval_ptr
 297         , struct GfxBase *GfxBase);
 298
 299 /* function for area opeartions */
 300 BOOL areafillpolygon(struct RastPort  * rp,
 301                      struct Rectangle * bounds,
 302                      UWORD              first_idx,
 303                      UWORD              last_idx,
 304                      ULONG              bytesperrow,
 305                      struct GfxBase   * GfxBase);
 306
 307 void areafillellipse(struct RastPort   * rp,
 308                      struct Rectangle  * bounds,
 309                      UWORD             * CurVctr,
 310                      ULONG               BytesPerRow,
 311                      struct GfxBase    * GfxBase);
 312
 313 void areaclosepolygon(struct AreaInfo *areainfo);
 314
 315 /* functions in color_support */
 316 ULONG color_distance(struct ColorMap * cm,
 317                      ULONG r,
 318                      ULONG g,
 319                      ULONG b,
 320                      ULONG index);
 321
 322 BOOL color_equal(struct ColorMap * cm,
 323                  ULONG r,
 324                  ULONG g,
 325                  ULONG b,
 326                  ULONG index);
 327
 328 VOID color_get(struct ColorMap *cm,
 329                 ULONG *r,
 330                 ULONG *g,
 331                 ULONG *b,
 332                 ULONG index);
 333
 334 void _DisposeRegionRectangleList
 335 (
 336     struct RegionRectangle *RR,
 337     struct GfxBase         *GfxBase
 338 );
 339
 340 struct RegionRectangle *_NewRegionRectangle
 341 (
 342     struct RegionRectangle **LastRectPtr,
 343     struct GfxBase *GfxBase
 344 );
 345
 346 BOOL _LinkRegionRectangleList
 347 (
 348     struct RegionRectangle  *src,
 349     struct RegionRectangle **dstptr,
 350     struct GfxBase          *GfxBase
 351 );
 352
 353 #if REGIONS_USE_POOL
 354 #   define GFX_ALLOC(Size)                                \
 355     ({                                                    \
 356         APTR Mem;                                         \
 357                                                           \
 358         ObtainSemaphore(&PrivGBase(GfxBase)->regionsem);  \
 359                                                           \
 360         Mem = AllocPooled                                 \
 361         (                                                 \
 362             PrivGBase(GfxBase)->regionpool,               \
 363             Size                                          \
 364         );                                                \
 365                                                           \
 366         ReleaseSemaphore(&PrivGBase(GfxBase)->regionsem); \
 367                                                           \
 368         Mem;                                              \
 369     })
 370
 371 #    define GFX_FREE(Mem, Size)                           \
 372      {                                                    \
 373         APTR Mem;                                         \
 374                                                           \
 375         ObtainSemaphore(&PrivGBase(GfxBase)->regionsem);  \
 376                                                           \
 377         FreePooled                                        \
 378         (                                                 \
 379             PrivGBase(GfxBase)->regionpool,               \
 380             Mem,                                          \
 381             size                                          \
 382         );                                                \
 383                                                           \
 384         ReleaseSemaphore(&PrivGBase(GfxBase)->regionsem); \
 385      }
 386 #else
 387 #    define GFX_ALLOC(Size)     AllocMem(Size, MEMF_ANY)
 388 #    define GFX_FREE(Mem, Size) FreeMem(Mem, Size)
 389 #endif
 390
 391 #define _NewRegionRectangleExtChunk() \
 392     __NewRegionRectangleExtChunk(GfxBase)
 393
 394 #define _DisposeRegionRectangleExtChunk(_chunk) \
 395     __DisposeRegionRectangleExtChunk(_chunk, GfxBase)
 396
 397 #define SIZECHUNKBUF 20
 398
 399 struct ChunkExt
 400 {
 401     struct RegionRectangleExtChunk  Chunk;
 402     struct ChunkPool               *Owner;
 403 };
 404
 405 struct ChunkPool
 406 {
 407     struct MinNode  Node;
 408     struct ChunkExt Chunks[SIZECHUNKBUF];
 409     struct MinList  ChunkList;
 410     LONG            NumChunkFree;
 411 };
 412
 413 void __DisposeRegionRectangleExtChunk
 414 (
 415     struct RegionRectangleExtChunk *Chunk,
 416     struct GfxBase *GfxBase
 417 );
 418
 419 struct BlitWaitQNode
 420 {
 421         struct MinNode node;
 422         struct Task *task;
 423 };
 424
 425 #endif /* GRAPHICS_INTERN_H */