src/mesa/drivers/glide/fxdrv.h

   1
   2 /*
   3  * Mesa 3-D graphics library
   4  * Version:  3.3
   5  *
   6  * Copyright (C) 1999-2000  Brian Paul   All Rights Reserved.
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a
   9  * copy of this software and associated documentation files (the "Software"),
  10  * to deal in the Software without restriction, including without limitation
  11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12  * and/or sell copies of the Software, and to permit persons to whom the
  13  * Software is furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice shall be included
  16  * in all copies or substantial portions of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  21  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  22  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  23  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  *
  26  * Original Mesa / 3Dfx device driver (C) 1999 David Bucciarelli, by the
  27  * terms stated above.
  28  *
  29  * Thank you for your contribution, David!
  30  *
  31  * Please make note of the above copyright/license statement.  If you
  32  * contributed code or bug fixes to this code under the previous (GNU
  33  * Library) license and object to the new license, your code will be
  34  * removed at your request.  Please see the Mesa docs/COPYRIGHT file
  35  * for more information.
  36  *
  37  * Additional Mesa/3Dfx driver developers:
  38  *   Daryll Strauss <daryll@precisioninsight.com>
  39  *   Keith Whitwell <keith@precisioninsight.com>
  40  *
  41  * See fxapi.h for more revision/author details.
  42  */
  43
  44
  45 #ifndef FXDRV_H
  46 #define FXDRV_H
  47
  48 /* If you comment out this define, a variable takes its place, letting
  49  * you turn debugging on/off from the debugger.
  50  */
  51
  52 #include "glheader.h"
  53
  54
  55 #if defined(__linux__)
  56 #include <signal.h>
  57 #endif
  58
  59 #include "context.h"
  60 #include "macros.h"
  61 #include "matrix.h"
  62 #include "mem.h"
  63 #include "mtypes.h"
  64
  65 #include "GL/fxmesa.h"
  66 #include "fxglidew.h"
  67
  68 #include "math/m_vector.h"
  69
  70
  71 /* Define some shorter names for these things.
  72  */
  73 #define XCOORD   GR_VERTEX_X_OFFSET
  74 #define YCOORD   GR_VERTEX_Y_OFFSET
  75 #define ZCOORD   GR_VERTEX_OOZ_OFFSET
  76 #define OOWCOORD GR_VERTEX_OOW_OFFSET
  77
  78 #define RCOORD   GR_VERTEX_R_OFFSET
  79 #define GCOORD   GR_VERTEX_G_OFFSET
  80 #define BCOORD   GR_VERTEX_B_OFFSET
  81 #define ACOORD   GR_VERTEX_A_OFFSET
  82
  83 #define S0COORD  GR_VERTEX_SOW_TMU0_OFFSET
  84 #define T0COORD  GR_VERTEX_TOW_TMU0_OFFSET
  85 #define S1COORD  GR_VERTEX_SOW_TMU1_OFFSET
  86 #define T1COORD  GR_VERTEX_TOW_TMU1_OFFSET
  87
  88
  89 extern float gl_ubyte_to_float_255_color_tab[256];
  90 #define UBYTE_COLOR_TO_FLOAT_255_COLOR(c) gl_ubyte_to_float_255_color_tab[c]
  91 #define UBYTE_COLOR_TO_FLOAT_255_COLOR2(f,c) \
  92     (*(int *)&(f)) = ((int *)gl_ubyte_to_float_255_color_tab)[c]
  93
  94
  95
  96
  97 /* Should have size == 16 * sizeof(float).
  98  */
  99 typedef union {
 100   GrVertex v;
 101   GLfloat f[16];
 102   GLuint ui[16];
 103 } fxVertex;
 104
 105 /* Used in the fxvtxfmt t&l engine.
 106  */
 107 typedef struct {
 108    GrVertex v;
 109    GLfloat clip[4];
 110    GLfloat texcoord[2][2];
 111    GLubyte mask;
 112    GLfloat normal[3];           /* for replay & fallback */
 113 } fxClipVertex;
 114
 115
 116
 117 typedef void (*vfmt_project_func)( GLcontext *ctx, fxClipVertex *v );
 118 typedef void (*vfmt_interpolate_func)( GLfloat t,
 119                                        fxClipVertex *O,
 120                                        const fxClipVertex *I,
 121                                        const fxClipVertex *J );
 122
 123
 124
 125 #if defined(FXMESA_USE_ARGB)
 126 #define FXCOLOR4( c ) (      \
 127   ( ((unsigned int)(c[3]))<<24 ) | \
 128   ( ((unsigned int)(c[0]))<<16 ) | \
 129   ( ((unsigned int)(c[1]))<<8 )  | \
 130   (  (unsigned int)(c[2])) )
 131
 132 #else
 133 #ifdef __i386__
 134 #define FXCOLOR4( c )  (* (int *)c)
 135 #else
 136 #define FXCOLOR4( c ) (      \
 137   ( ((unsigned int)(c[3]))<<24 ) | \
 138   ( ((unsigned int)(c[2]))<<16 ) | \
 139   ( ((unsigned int)(c[1]))<<8 )  | \
 140   (  (unsigned int)(c[0])) )
 141 #endif
 142 #endif
 143
 144
 145
 146 /* fastpath/vtxfmt flags first
 147  */
 148 #define SETUP_TMU0 0x1
 149 #define SETUP_TMU1 0x2
 150 #define SETUP_RGBA 0x4
 151 #define SETUP_SNAP 0x8
 152 #define SETUP_XYZW 0x10
 153 #define MAX_SETUP  0x20
 154
 155
 156 #define FX_NUM_TMU 2
 157
 158 #define FX_TMU0      GR_TMU0
 159 #define FX_TMU1      GR_TMU1
 160 #define FX_TMU_SPLIT 98
 161 #define FX_TMU_BOTH  99
 162 #define FX_TMU_NONE  100
 163
 164 /* Used for fxMesa->lastUnitsMode */
 165
 166 #define FX_UM_NONE                  0x00000000
 167
 168 #define FX_UM_E0_REPLACE            0x00000001
 169 #define FX_UM_E0_MODULATE           0x00000002
 170 #define FX_UM_E0_DECAL              0x00000004
 171 #define FX_UM_E0_BLEND              0x00000008
 172 #define FX_UM_E0_ADD                0x00000010
 173
 174 #define FX_UM_E1_REPLACE            0x00000020
 175 #define FX_UM_E1_MODULATE           0x00000040
 176 #define FX_UM_E1_DECAL              0x00000080
 177 #define FX_UM_E1_BLEND              0x00000100
 178 #define FX_UM_E1_ADD                0x00000200
 179
 180 #define FX_UM_E_ENVMODE             0x000003ff
 181
 182 #define FX_UM_E0_ALPHA              0x00001000
 183 #define FX_UM_E0_LUMINANCE          0x00002000
 184 #define FX_UM_E0_LUMINANCE_ALPHA    0x00004000
 185 #define FX_UM_E0_INTENSITY          0x00008000
 186 #define FX_UM_E0_RGB                0x00010000
 187 #define FX_UM_E0_RGBA               0x00020000
 188
 189 #define FX_UM_E1_ALPHA              0x00040000
 190 #define FX_UM_E1_LUMINANCE          0x00080000
 191 #define FX_UM_E1_LUMINANCE_ALPHA    0x00100000
 192 #define FX_UM_E1_INTENSITY          0x00200000
 193 #define FX_UM_E1_RGB                0x00400000
 194 #define FX_UM_E1_RGBA               0x00800000
 195
 196 #define FX_UM_E_IFMT                0x00fff000
 197
 198 #define FX_UM_COLOR_ITERATED        0x01000000
 199 #define FX_UM_COLOR_CONSTANT        0x02000000
 200 #define FX_UM_ALPHA_ITERATED        0x04000000
 201 #define FX_UM_ALPHA_CONSTANT        0x08000000
 202
 203
 204 /*
 205   Memory range from startAddr to endAddr-1
 206 */
 207 typedef struct MemRange_t {
 208   struct MemRange_t *next;
 209   FxU32 startAddr, endAddr;
 210 } MemRange;
 211
 212 typedef struct {
 213   GLsizei width, height;              /* image size */
 214   GLint wScale, hScale;               /* image scale factor */
 215   GrTextureFormat_t glideFormat;      /* Glide image format */
 216 } tfxMipMapLevel;
 217
 218 /*
 219  * TDFX-specific texture object data.  This hangs off of the
 220  * struct gl_texture_object DriverData pointer.
 221  */
 222 typedef struct tfxTexInfo_t {
 223   struct tfxTexInfo *next;
 224   struct gl_texture_object *tObj;
 225
 226   GLuint lastTimeUsed;
 227   FxU32 whichTMU;
 228   GLboolean isInTM;
 229
 230   MemRange *tm[FX_NUM_TMU];
 231
 232   GLint minLevel, maxLevel;
 233   GLint baseLevelInternalFormat;
 234
 235   GrTexInfo info;
 236
 237   GrTextureFilterMode_t minFilt;
 238   GrTextureFilterMode_t maxFilt;
 239   FxBool LODblend;
 240
 241   GrTextureClampMode_t sClamp;
 242   GrTextureClampMode_t tClamp;
 243
 244   GrMipMapMode_t mmMode;
 245
 246   GLfloat sScale, tScale;
 247   GLint int_sScale, int_tScale; /* x86 floating point trick for
 248                                  * multiplication by powers of 2.
 249                                  * Used in fxfasttmp.h
 250                                  */
 251
 252   GuTexPalette palette;
 253
 254   GLboolean fixedPalette;
 255   GLboolean validated;
 256 } tfxTexInfo;
 257
 258 typedef struct {
 259   GLuint swapBuffer;
 260   GLuint reqTexUpload;
 261   GLuint texUpload;
 262   GLuint memTexUpload;
 263 } tfxStats;
 264
 265
 266
 267 typedef struct {
 268   /* Alpha test */
 269
 270   GLboolean alphaTestEnabled;
 271   GrCmpFnc_t alphaTestFunc;
 272   GrAlpha_t alphaTestRefValue;
 273
 274   /* Blend function */
 275
 276   GLboolean blendEnabled;
 277   GrAlphaBlendFnc_t blendSrcFuncRGB;
 278   GrAlphaBlendFnc_t blendDstFuncRGB;
 279   GrAlphaBlendFnc_t blendSrcFuncAlpha;
 280   GrAlphaBlendFnc_t blendDstFuncAlpha;
 281
 282   /* Depth test */
 283
 284   GLboolean depthTestEnabled;
 285   GLboolean depthMask;
 286   GrCmpFnc_t depthTestFunc;
 287 } tfxUnitsState;
 288
 289
 290
 291
 292 /* Flags for fxMesa->new_state
 293  */
 294 #define FX_NEW_TEXTURING      0x1
 295 #define FX_NEW_BLEND          0x2
 296 #define FX_NEW_ALPHA          0x4
 297 #define FX_NEW_DEPTH          0x8
 298 #define FX_NEW_FOG            0x10
 299 #define FX_NEW_SCISSOR        0x20
 300 #define FX_NEW_COLOR_MASK     0x40
 301 #define FX_NEW_CULL           0x80
 302
 303
 304 #define FX_CONTEXT(ctx) ((fxMesaContext)((ctx)->DriverCtx))
 305
 306 #define FX_TEXTURE_DATA(texUnit) fxTMGetTexInfo((texUnit)->_Current)
 307
 308 #define fxTMGetTexInfo(o) ((tfxTexInfo*)((o)->DriverData))
 309
 310 #define FX_MIPMAP_DATA(img)  ((tfxMipMapLevel *) (img)->DriverData)
 311
 312 #define BEGIN_BOARD_LOCK()
 313 #define END_BOARD_LOCK()
 314 #define BEGIN_CLIP_LOOP()
 315 #define END_CLIP_LOOP()
 316
 317
 318
 319
 320 /* Covers the state referenced by IsInHardware:
 321  */
 322 #define _FX_NEW_IS_IN_HARDWARE (_NEW_TEXTURE|           \
 323                                 _NEW_HINT|              \
 324                                 _NEW_STENCIL|           \
 325                                 _NEW_BUFFERS|           \
 326                                 _NEW_COLOR|             \
 327                                 _NEW_LIGHT)
 328
 329 /* Covers the state referenced by fxDDChooseRenderState
 330  */
 331 #define _FX_NEW_RENDERSTATE (_FX_NEW_IS_IN_HARDWARE |   \
 332                              _DD_NEW_FLATSHADE |        \
 333                              _DD_NEW_TRI_LIGHT_TWOSIDE| \
 334                              _DD_NEW_TRI_OFFSET |       \
 335                              _DD_NEW_TRI_UNFILLED |     \
 336                              _DD_NEW_TRI_SMOOTH |       \
 337                              _DD_NEW_TRI_STIPPLE |      \
 338                              _DD_NEW_LINE_SMOOTH |      \
 339                              _DD_NEW_LINE_STIPPLE |     \
 340                              _DD_NEW_LINE_WIDTH |       \
 341                              _DD_NEW_POINT_SMOOTH |     \
 342                              _DD_NEW_POINT_SIZE |       \
 343                              _NEW_LINE)
 344
 345 /* Covers the state referenced by fxDDChooseSetupFunction.
 346  */
 347 #define _FX_NEW_SETUP_FUNCTION (_NEW_LIGHT|     \
 348                                 _NEW_FOG|       \
 349                                 _NEW_TEXTURE|   \
 350                                 _NEW_COLOR)     \
 351
 352
 353 /* Covers the state referenced in fxDDCheckVtxfmt.
 354  */
 355 #define _FX_NEW_VTXFMT (_NEW_TEXTURE |                  \
 356                         _NEW_TEXTURE_MATRIX |           \
 357                         _NEW_TRANSFORM |                \
 358                         _NEW_LIGHT |                    \
 359                         _NEW_PROJECTION |               \
 360                         _NEW_MODELVIEW |                \
 361                         _TNL_NEW_NEED_EYE_COORDS |      \
 362                         _FX_NEW_RENDERSTATE)
 363
 364
 365 /* These lookup table are used to extract RGB values in [0,255] from
 366  * 16-bit pixel values.
 367  */
 368 extern GLubyte FX_PixelToR[0x10000];
 369 extern GLubyte FX_PixelToG[0x10000];
 370 extern GLubyte FX_PixelToB[0x10000];
 371
 372
 373 typedef void (*fx_tri_func)( GLcontext *, const fxVertex *,
 374                              const fxVertex *, const fxVertex * );
 375 typedef void (*fx_line_func)( GLcontext *, const fxVertex *, const fxVertex * );
 376 typedef void (*fx_point_func)( GLcontext *, const fxVertex * );
 377
 378 struct tfxMesaContext {
 379    GuTexPalette glbPalette;
 380
 381    GLcontext *glCtx;              /* the core Mesa context */
 382    GLvisual *glVis;               /* describes the color buffer */
 383    GLframebuffer *glBuffer;       /* the ancillary buffers */
 384
 385    GLint board;                   /* the board used for this context */
 386    GLint width, height;           /* size of color buffer */
 387
 388    GrBuffer_t currentFB;
 389
 390    GLboolean bgrOrder;
 391    GrColor_t color;
 392    GrColor_t clearC;
 393    GrAlpha_t clearA;
 394    GLuint constColor;
 395    GrCullMode_t cullMode;
 396
 397    tfxUnitsState unitsState;
 398    tfxUnitsState restoreUnitsState; /* saved during multipass */
 399
 400
 401    GLuint new_state;
 402
 403    /* Texture Memory Manager Data
 404     */
 405    GLuint texBindNumber;
 406    GLint tmuSrc;
 407    GLuint lastUnitsMode;
 408    GLuint freeTexMem[FX_NUM_TMU];
 409    MemRange *tmPool;
 410    MemRange *tmFree[FX_NUM_TMU];
 411
 412    GLenum fogTableMode;
 413    GLfloat fogDensity;
 414    GLfloat fogStart, fogEnd;
 415    GrFog_t *fogTable;
 416    GLint textureAlign;
 417
 418    /* Vertex building and storage:
 419     */
 420    GLuint tmu_source[FX_NUM_TMU];
 421    GLuint tex_dest[MAX_TEXTURE_UNITS];
 422    GLuint setupindex;
 423    GLuint setup_gone;           /* for multipass */
 424    GLuint stw_hint_state;       /* for grHints */
 425    fxVertex *verts;
 426
 427
 428    /* Rasterization:
 429     */
 430    GLuint render_index;
 431    GLuint passes, multipass;
 432    GLuint is_in_hardware;
 433    GLenum render_prim;
 434
 435    /* Current rasterization functions
 436     */
 437    fx_point_func draw_point;
 438    fx_line_func draw_line;
 439    fx_tri_func draw_tri;
 440
 441    /* System to turn culling on/off for tris/lines/points.
 442     */
 443    fx_point_func initial_point;
 444    fx_line_func initial_line;
 445    fx_tri_func initial_tri;
 446
 447    fx_point_func subsequent_point;
 448    fx_line_func subsequent_line;
 449    fx_tri_func subsequent_tri;
 450
 451    /* Keep texture scales somewhere handy:
 452     */
 453    GLfloat s0scale;
 454    GLfloat s1scale;
 455    GLfloat t0scale;
 456    GLfloat t1scale;
 457
 458    GLfloat inv_s0scale;
 459    GLfloat inv_s1scale;
 460    GLfloat inv_t0scale;
 461    GLfloat inv_t1scale;
 462
 463    /* Glide stuff
 464     */
 465    tfxStats stats;
 466    void *state;
 467
 468    /* Options */
 469
 470    GLboolean verbose;
 471    GLboolean haveTwoTMUs;       /* True if we really have 2 tmu's  */
 472    GLboolean emulateTwoTMUs;    /* True if we present 2 tmu's to mesa.  */
 473    GLboolean haveAlphaBuffer;
 474    GLboolean haveZBuffer;
 475    GLboolean haveDoubleBuffer;
 476    GLboolean haveGlobalPaletteTexture;
 477    GLint swapInterval;
 478    GLint maxPendingSwapBuffers;
 479
 480    FX_GrContext_t glideContext;
 481
 482    int screen_width;
 483    int screen_height;
 484    int initDone;
 485    int clipMinX;
 486    int clipMaxX;
 487    int clipMinY;
 488    int clipMaxY;
 489
 490    /* fxvtxfmt
 491     */
 492    GLboolean allow_vfmt;
 493    GLvertexformat vtxfmt;
 494    fxClipVertex current;
 495    fxClipVertex *vert;          /* points into verts[] */
 496    void (*fire_on_vertex)( GLcontext * );
 497    void (*fire_on_end)( GLcontext * );
 498    void (*fire_on_fallback)( GLcontext * );
 499
 500    vfmt_project_func project_vertex;
 501    vfmt_interpolate_func interpolate_vertices;
 502
 503    int vtxfmt_fallback_count;
 504    int vtxfmt_installed;
 505    void (*old_begin)( GLenum );
 506    GLenum prim;
 507
 508    GLuint accel_light;
 509    GLfloat basecolor[4];
 510
 511
 512    /* Projected vertices, fastpath data:
 513     */
 514    GLvector1ui clipped_elements;
 515    fxVertex *last_vert;
 516    GLuint size;
 517 };
 518
 519 typedef void (*tfxSetupFunc)(GLcontext *ctx, GLuint, GLuint );
 520
 521 extern GrHwConfiguration glbHWConfig;
 522 extern int glbCurrentBoard;
 523
 524 extern void fxSetupFXUnits(GLcontext *);
 525 extern void fxSetupDDPointers(GLcontext *);
 526
 527 /* fxvsetup:
 528  */
 529 extern void fxDDSetupInit(void);
 530 extern void fxAllocVB( GLcontext *ctx );
 531 extern void fxFreeVB( GLcontext *ctx );
 532 extern void fxPrintSetupFlags( const char *msg, GLuint flags );
 533 extern void fx_BuildProjVerts( GLcontext *ctx,
 534                                GLuint start, GLuint count,
 535                                GLuint newinputs );
 536 extern void fx_validate_BuildProjVerts(GLcontext *ctx,
 537                                        GLuint start, GLuint count,
 538                                        GLuint newinputs );
 539
 540 /* fxtrifuncs:
 541  */
 542 extern void fxDDTrifuncInit(void);
 543 extern void fxDDChooseRenderState( GLcontext *ctx );
 544
 545
 546 extern void fxUpdateDDSpanPointers(GLcontext *);
 547 extern void fxSetupDDSpanPointers(GLcontext *);
 548
 549 extern void fxPrintTextureData(tfxTexInfo *ti);
 550 extern void fxDDTexImage2D(GLcontext *ctx, GLenum target, GLint level,
 551                GLint internalFormat, GLint width, GLint height, GLint border,
 552                GLenum format, GLenum type, const GLvoid *pixels,
 553                const struct gl_pixelstore_attrib *packing,
 554                struct gl_texture_object *texObj,
 555                struct gl_texture_image *texImage);
 556
 557 extern void fxDDTexSubImage2D(GLcontext *ctx, GLenum target, GLint level,
 558                               GLint xoffset, GLint yoffset,
 559                               GLsizei width, GLsizei height,
 560                               GLenum format, GLenum type, const GLvoid *pixels,
 561                               const struct gl_pixelstore_attrib *packing,
 562                               struct gl_texture_object *texObj,
 563                               struct gl_texture_image *texImage);
 564 extern void fxDDTexEnv(GLcontext *, GLenum, GLenum, const GLfloat *);
 565 extern void fxDDTexParam(GLcontext *, GLenum, struct gl_texture_object *,
 566                          GLenum, const GLfloat *);
 567 extern void fxDDTexBind(GLcontext *, GLenum, struct gl_texture_object *);
 568 extern void fxDDTexDel(GLcontext *, struct gl_texture_object *);
 569 extern void fxDDTexPalette(GLcontext *, struct gl_texture_object *);
 570 extern void fxDDTexUseGlbPalette(GLcontext *, GLboolean);
 571
 572 extern void fxDDEnable(GLcontext *, GLenum, GLboolean);
 573 extern void fxDDAlphaFunc(GLcontext *, GLenum, GLclampf);
 574 extern void fxDDBlendFunc(GLcontext *, GLenum, GLenum);
 575 extern void fxDDDepthMask(GLcontext *, GLboolean);
 576 extern void fxDDDepthFunc(GLcontext *, GLenum);
 577
 578 extern void fxDDInitExtensions( GLcontext *ctx );
 579
 580 extern void fxTMInit(fxMesaContext ctx);
 581 extern void fxTMClose(fxMesaContext ctx);
 582 extern void fxTMRestoreTextures_NoLock(fxMesaContext ctx);
 583 extern void fxTMMoveInTM(fxMesaContext, struct gl_texture_object *, GLint);
 584 extern void fxTMMoveOutTM(fxMesaContext, struct gl_texture_object *);
 585 #define fxTMMoveOutTM_NoLock fxTMMoveOutTM
 586 extern void fxTMFreeTexture(fxMesaContext, struct gl_texture_object *);
 587 extern void fxTMReloadMipMapLevel(fxMesaContext, struct gl_texture_object *, GLint);
 588 extern void fxTMReloadSubMipMapLevel(fxMesaContext, struct gl_texture_object *,
 589                                      GLint, GLint, GLint);
 590
 591 extern void fxTexGetFormat(GLenum, GrTextureFormat_t *, GLint *);
 592 extern int fxTexGetInfo(int, int, GrLOD_t *, GrAspectRatio_t *,
 593                         float *, float *, int *, int *, int *, int *);
 594
 595 extern void fxDDScissor( GLcontext *ctx,
 596                               GLint x, GLint y, GLsizei w, GLsizei h );
 597 extern void fxDDFogfv( GLcontext *ctx, GLenum pname, const GLfloat *params );
 598 extern void fxDDColorMask(GLcontext *ctx,
 599                           GLboolean r, GLboolean g,
 600                           GLboolean b, GLboolean a );
 601
 602 extern void fxDDWriteDepthSpan(GLcontext *ctx, GLuint n, GLint x, GLint y,
 603                                const GLdepth depth[], const GLubyte mask[]);
 604
 605 extern void fxDDReadDepthSpan(GLcontext *ctx, GLuint n, GLint x, GLint y,
 606                               GLdepth depth[]);
 607
 608 extern void fxDDWriteDepthPixels(GLcontext *ctx, GLuint n,
 609                                  const GLint x[], const GLint y[],
 610                                  const GLdepth depth[], const GLubyte mask[]);
 611
 612 extern void fxDDReadDepthPixels(GLcontext *ctx, GLuint n,
 613                                 const GLint x[], const GLint y[],
 614                                 GLdepth depth[]);
 615
 616 extern void fxDDShadeModel(GLcontext *ctx, GLenum mode);
 617
 618 extern void fxDDCullFace(GLcontext *ctx, GLenum mode);
 619 extern void fxDDFrontFace(GLcontext *ctx, GLenum mode);
 620
 621 extern void fxPrintRenderState( const char *msg, GLuint state );
 622 extern void fxPrintHintState( const char *msg, GLuint state );
 623
 624 extern int fxDDInitFxMesaContext( fxMesaContext fxMesa );
 625 extern void fxDDDestroyFxMesaContext( fxMesaContext fxMesa );
 626
 627
 628
 629
 630 extern void fxSetScissorValues(GLcontext *ctx);
 631 extern void fxTMMoveInTM_NoLock(fxMesaContext fxMesa,
 632                                 struct gl_texture_object *tObj,
 633                                 GLint where);
 634 extern void fxInitPixelTables(fxMesaContext fxMesa, GLboolean bgrOrder);
 635
 636
 637 /* fxvtxfmt:
 638  */
 639 extern void fxDDCheckVtxfmt( GLcontext *ctx );
 640 extern void fx_update_lighting( GLcontext *ctx );
 641 extern void fxDDInitVtxfmt( GLcontext *ctx );
 642
 643 /* fxsimplerender
 644  */
 645 extern const struct gl_pipeline_stage fx_render_stage;
 646
 647 #endif