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