src/mesa/drivers/glide/fxdrv.h

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  4.0
   4  *
   5  * Copyright (C) 1999-2001  Brian Paul   All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included
  15  * in all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  21  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 /* Authors:
  26  *    David Bucciarelli
  27  *    Brian Paul
  28  *    Daryll Strauss
  29  *    Keith Whitwell
  30  *    Daniel Borca
  31  *    Hiroshi Morii
  32  */
  33
  34 /* fxsetup.c - 3Dfx VooDoo rendering mode setup functions */
  35
  36
  37 #ifndef FXDRV_H
  38 #define FXDRV_H
  39
  40 /* If you comment out this define, a variable takes its place, letting
  41  * you turn debugging on/off from the debugger.
  42  */
  43
  44 #include "glheader.h"
  45
  46
  47 #if defined(__linux__)
  48 #include <signal.h>
  49 #endif
  50
  51 #include "main/context.h"
  52 #include "main/imports.h"
  53 #include "main/macros.h"
  54 #include "main/matrix.h"
  55 #include "main/mtypes.h"
  56
  57 #include "GL/fxmesa.h"
  58 #include "fxglidew.h"
  59
  60 #include "math/m_vector.h"
  61
  62
  63 #define COPY_FLOAT(dst, src)    (dst) = (src)
  64
  65 /* Define some shorter names for these things.
  66  */
  67 #define XCOORD   GR_VERTEX_X_OFFSET
  68 #define YCOORD   GR_VERTEX_Y_OFFSET
  69 #define ZCOORD   GR_VERTEX_OOZ_OFFSET
  70 #define OOWCOORD GR_VERTEX_OOW_OFFSET
  71
  72 #define S0COORD  GR_VERTEX_SOW_TMU0_OFFSET
  73 #define T0COORD  GR_VERTEX_TOW_TMU0_OFFSET
  74 #define S1COORD  GR_VERTEX_SOW_TMU1_OFFSET
  75 #define T1COORD  GR_VERTEX_TOW_TMU1_OFFSET
  76
  77
  78
  79 #ifdef __i386__
  80 #define FXCOLOR4( c )  (* (int *)c)
  81 #else
  82 #define FXCOLOR4( c ) (      \
  83   ( ((unsigned int)(c[3]))<<24 ) | \
  84   ( ((unsigned int)(c[2]))<<16 ) | \
  85   ( ((unsigned int)(c[1]))<<8 )  | \
  86   (  (unsigned int)(c[0])) )
  87 #endif
  88
  89 #define TDFXPACKCOLOR1555( r, g, b, a )                                    \
  90    ((((r) & 0xf8) << 7) | (((g) & 0xf8) << 2) | (((b) & 0xf8) >> 3) |      \
  91     ((a) ? 0x8000 : 0))
  92 #define TDFXPACKCOLOR565( r, g, b )                                        \
  93    ((((r) & 0xf8) << 8) | (((g) & 0xfc) << 3) | (((b) & 0xf8) >> 3))
  94 #define TDFXPACKCOLOR8888( r, g, b, a )                                    \
  95    (((a) << 24) | ((r) << 16) | ((g) << 8) | (b))
  96
  97
  98
  99 /* fastpath flags first
 100  */
 101 #define SETUP_TMU0 0x1
 102 #define SETUP_TMU1 0x2
 103 #define SETUP_RGBA 0x4
 104 #define SETUP_SNAP 0x8
 105 #define SETUP_XYZW 0x10
 106 #define SETUP_PTEX 0x20
 107 #define SETUP_PSIZ 0x40
 108 #define SETUP_SPEC 0x80
 109 #define SETUP_FOGC 0x100
 110 #define MAX_SETUP  0x200
 111
 112
 113 #define FX_NUM_TMU 2
 114
 115 #define FX_TMU0      GR_TMU0
 116 #define FX_TMU1      GR_TMU1
 117 #define FX_TMU_SPLIT 98
 118 #define FX_TMU_BOTH  99
 119 #define FX_TMU_NONE  100
 120
 121 /* Used for fxMesa->lastUnitsMode */
 122
 123 #define FX_UM_NONE                  0x00000000
 124
 125 #define FX_UM_E0_REPLACE            0x00000001
 126 #define FX_UM_E0_MODULATE           0x00000002
 127 #define FX_UM_E0_DECAL              0x00000004
 128 #define FX_UM_E0_BLEND              0x00000008
 129 #define FX_UM_E0_ADD                0x00000010
 130
 131 #define FX_UM_E1_REPLACE            0x00000020
 132 #define FX_UM_E1_MODULATE           0x00000040
 133 #define FX_UM_E1_DECAL              0x00000080
 134 #define FX_UM_E1_BLEND              0x00000100
 135 #define FX_UM_E1_ADD                0x00000200
 136
 137 #define FX_UM_E_ENVMODE             0x000003ff
 138
 139 #define FX_UM_E0_ALPHA              0x00001000
 140 #define FX_UM_E0_LUMINANCE          0x00002000
 141 #define FX_UM_E0_LUMINANCE_ALPHA    0x00004000
 142 #define FX_UM_E0_INTENSITY          0x00008000
 143 #define FX_UM_E0_RGB                0x00010000
 144 #define FX_UM_E0_RGBA               0x00020000
 145
 146 #define FX_UM_E1_ALPHA              0x00040000
 147 #define FX_UM_E1_LUMINANCE          0x00080000
 148 #define FX_UM_E1_LUMINANCE_ALPHA    0x00100000
 149 #define FX_UM_E1_INTENSITY          0x00200000
 150 #define FX_UM_E1_RGB                0x00400000
 151 #define FX_UM_E1_RGBA               0x00800000
 152
 153 #define FX_UM_E_IFMT                0x00fff000
 154
 155 #define FX_UM_COLOR_ITERATED        0x01000000
 156 #define FX_UM_COLOR_CONSTANT        0x02000000
 157 #define FX_UM_ALPHA_ITERATED        0x04000000
 158 #define FX_UM_ALPHA_CONSTANT        0x08000000
 159
 160
 161 /* for Voodoo3/Banshee's grColorCombine() and grAlphaCombine() */
 162 struct tdfx_combine {
 163    GrCombineFunction_t Function;        /* Combine function */
 164    GrCombineFactor_t Factor;            /* Combine scale factor */
 165    GrCombineLocal_t Local;              /* Local combine source */
 166    GrCombineOther_t Other;              /* Other combine source */
 167    FxBool Invert;                       /* Combine result inversion flag */
 168 };
 169
 170 /* for Voodoo3's grTexCombine() */
 171 struct tdfx_texcombine {
 172    GrCombineFunction_t FunctionRGB;
 173    GrCombineFactor_t FactorRGB;
 174    GrCombineFunction_t FunctionAlpha;
 175    GrCombineFactor_t FactorAlpha;
 176    FxBool InvertRGB;
 177    FxBool InvertAlpha;
 178 };
 179
 180
 181 /* for Voodoo5's grColorCombineExt() */
 182 struct tdfx_combine_color_ext {
 183    GrCCUColor_t SourceA;
 184    GrCombineMode_t ModeA;
 185    GrCCUColor_t SourceB;
 186    GrCombineMode_t ModeB;
 187    GrCCUColor_t SourceC;
 188    FxBool InvertC;
 189    GrCCUColor_t SourceD;
 190    FxBool InvertD;
 191    FxU32 Shift;
 192    FxBool Invert;
 193 };
 194
 195 /* for Voodoo5's grAlphaCombineExt() */
 196 struct tdfx_combine_alpha_ext {
 197    GrACUColor_t SourceA;
 198    GrCombineMode_t ModeA;
 199    GrACUColor_t SourceB;
 200    GrCombineMode_t ModeB;
 201    GrACUColor_t SourceC;
 202    FxBool InvertC;
 203    GrACUColor_t SourceD;
 204    FxBool InvertD;
 205    FxU32 Shift;
 206    FxBool Invert;
 207 };
 208
 209 /* for Voodoo5's grTexColorCombineExt() */
 210 struct tdfx_color_texenv {
 211    GrTCCUColor_t SourceA;
 212    GrCombineMode_t ModeA;
 213    GrTCCUColor_t SourceB;
 214    GrCombineMode_t ModeB;
 215    GrTCCUColor_t SourceC;
 216    FxBool InvertC;
 217    GrTCCUColor_t SourceD;
 218    FxBool InvertD;
 219    FxU32 Shift;
 220    FxBool Invert;
 221 };
 222
 223 /* for Voodoo5's grTexAlphaCombineExt() */
 224 struct tdfx_alpha_texenv {
 225    GrTACUColor_t SourceA;
 226    GrCombineMode_t ModeA;
 227    GrTACUColor_t SourceB;
 228    GrCombineMode_t ModeB;
 229    GrTACUColor_t SourceC;
 230    FxBool InvertC;
 231    GrTCCUColor_t SourceD;
 232    FxBool InvertD;
 233    FxU32 Shift;
 234    FxBool Invert;
 235 };
 236
 237 /* Voodoo5's texture combine environment */
 238 struct tdfx_texcombine_ext {
 239    struct tdfx_alpha_texenv Alpha;
 240    struct tdfx_color_texenv Color;
 241    GrColor_t EnvColor;
 242 };
 243
 244
 245 /*
 246   Memory range from startAddr to endAddr-1
 247 */
 248 typedef struct MemRange_t
 249 {
 250    struct MemRange_t *next;
 251    FxU32 startAddr, endAddr;
 252 }
 253 MemRange;
 254
 255 typedef struct
 256 {
 257    GLsizei width, height;       /* image size */
 258    GLint wScale, hScale;        /* image scale factor */
 259    GrTextureFormat_t glideFormat;       /* Glide image format */
 260 }
 261 tfxMipMapLevel;
 262
 263 /*
 264  * TDFX-specific texture object data.  This hangs off of the
 265  * struct gl_texture_object DriverData pointer.
 266  */
 267 typedef struct tfxTexInfo_t
 268 {
 269    struct tfxTexInfo_t *next;
 270    struct gl_texture_object *tObj;
 271
 272    GLuint lastTimeUsed;
 273    FxU32 whichTMU;
 274    GLboolean isInTM;
 275
 276    MemRange *tm[FX_NUM_TMU];
 277
 278    GLint minLevel, maxLevel;
 279    GLint baseLevelInternalFormat;
 280
 281    GrTexInfo info;
 282
 283    GrTextureFilterMode_t minFilt;
 284    GrTextureFilterMode_t maxFilt;
 285    FxBool LODblend;
 286
 287    GrTextureClampMode_t sClamp;
 288    GrTextureClampMode_t tClamp;
 289
 290    GrMipMapMode_t mmMode;
 291
 292    GLfloat sScale, tScale;
 293
 294    GrTexTable_t paltype;
 295    GuTexPalette palette;
 296
 297    GLboolean fixedPalette;
 298    GLboolean validated;
 299
 300    GLboolean padded;
 301 }
 302 tfxTexInfo;
 303
 304 typedef struct
 305 {
 306    GLuint swapBuffer;
 307    GLuint reqTexUpload;
 308    GLuint texUpload;
 309    GLuint memTexUpload;
 310 }
 311 tfxStats;
 312
 313
 314
 315 typedef struct
 316 {
 317    /* Alpha test */
 318
 319    GLboolean alphaTestEnabled;
 320    GrCmpFnc_t alphaTestFunc;
 321    GLfloat alphaTestRefValue;
 322
 323    /* Blend function */
 324
 325    GLboolean blendEnabled;
 326    GrAlphaBlendFnc_t blendSrcFuncRGB;
 327    GrAlphaBlendFnc_t blendDstFuncRGB;
 328    GrAlphaBlendFnc_t blendSrcFuncAlpha;
 329    GrAlphaBlendFnc_t blendDstFuncAlpha;
 330    GrAlphaBlendOp_t blendEqRGB;
 331    GrAlphaBlendOp_t blendEqAlpha;
 332
 333    /* Depth test */
 334
 335    GLboolean depthTestEnabled;
 336    GLboolean depthMask;
 337    GrCmpFnc_t depthTestFunc;
 338    FxI32 depthBias;
 339
 340    /* Stencil */
 341
 342    GLboolean stencilEnabled;
 343    GrCmpFnc_t stencilFunction;          /* Stencil function */
 344    GrStencil_t stencilRefValue;         /* Stencil reference value */
 345    GrStencil_t stencilValueMask;        /* Value mask */
 346    GrStencil_t stencilWriteMask;        /* Write mask */
 347    GrCmpFnc_t stencilFailFunc;          /* Stencil fail function */
 348    GrCmpFnc_t stencilZFailFunc;         /* Stencil pass, depth fail function */
 349    GrCmpFnc_t stencilZPassFunc;         /* Stencil pass, depth pass function */
 350    GrStencil_t stencilClear;            /* Buffer clear value */
 351 }
 352 tfxUnitsState;
 353
 354
 355
 356
 357 /* Flags for fxMesa->new_state
 358  */
 359 #define FX_NEW_TEXTURING      0x1
 360 #define FX_NEW_BLEND          0x2
 361 #define FX_NEW_ALPHA          0x4
 362 #define FX_NEW_DEPTH          0x8
 363 #define FX_NEW_FOG            0x10
 364 #define FX_NEW_SCISSOR        0x20
 365 #define FX_NEW_COLOR_MASK     0x40
 366 #define FX_NEW_CULL           0x80
 367 #define FX_NEW_STENCIL        0x100
 368
 369
 370 #define FX_CONTEXT(ctx) ((fxMesaContext)((ctx)->DriverCtx))
 371
 372 #define FX_TEXTURE_DATA(texUnit) fxTMGetTexInfo((texUnit)->_Current)
 373
 374 #define fxTMGetTexInfo(o) ((tfxTexInfo*)((o)->DriverData))
 375
 376 #define FX_MIPMAP_DATA(img)  ((tfxMipMapLevel *) (img)->DriverData)
 377
 378 #define BEGIN_BOARD_LOCK()
 379 #define END_BOARD_LOCK()
 380 #define BEGIN_CLIP_LOOP()
 381 #define END_CLIP_LOOP()
 382
 383
 384
 385
 386 /* Covers the state referenced by IsInHardware:
 387  */
 388 #define _FX_NEW_IS_IN_HARDWARE (_NEW_TEXTURE|           \
 389                                 _NEW_HINT|              \
 390                                 _NEW_STENCIL|           \
 391                                 _NEW_BUFFERS|           \
 392                                 _NEW_COLOR|             \
 393                                 _NEW_LIGHT)
 394
 395 /* Covers the state referenced by fxDDChooseRenderState
 396  */
 397 #define _FX_NEW_RENDERSTATE (_FX_NEW_IS_IN_HARDWARE |   \
 398                              _DD_NEW_FLATSHADE |        \
 399                              _DD_NEW_TRI_LIGHT_TWOSIDE| \
 400                              _DD_NEW_TRI_OFFSET |       \
 401                              _DD_NEW_TRI_UNFILLED |     \
 402                              _DD_NEW_TRI_SMOOTH |       \
 403                              _DD_NEW_TRI_STIPPLE |      \
 404                              _DD_NEW_LINE_SMOOTH |      \
 405                              _DD_NEW_LINE_STIPPLE |     \
 406                              _DD_NEW_LINE_WIDTH |       \
 407                              _DD_NEW_POINT_SMOOTH |     \
 408                              _DD_NEW_POINT_SIZE |       \
 409                              _NEW_LINE)
 410
 411
 412 /* Covers the state referenced by fxDDChooseSetupFunction.
 413  */
 414 #define _FX_NEW_SETUP_FUNCTION (_NEW_LIGHT|     \
 415                                 _NEW_FOG|       \
 416                                 _NEW_TEXTURE|   \
 417                                 _NEW_COLOR)     \
 418
 419
 420 /* lookup table for scaling y bit colors up to 8 bits */
 421 extern GLuint FX_rgb_scale_4[16];
 422 extern GLuint FX_rgb_scale_5[32];
 423 extern GLuint FX_rgb_scale_6[64];
 424
 425 typedef void (*fx_tri_func) (fxMesaContext, GrVertex *, GrVertex *, GrVertex *);
 426 typedef void (*fx_line_func) (fxMesaContext, GrVertex *, GrVertex *);
 427 typedef void (*fx_point_func) (fxMesaContext, GrVertex *);
 428
 429 struct tfxMesaContext
 430 {
 431    GrTexTable_t glbPalType;
 432    GuTexPalette glbPalette;
 433
 434    GLcontext *glCtx;            /* the core Mesa context */
 435    GLvisual *glVis;             /* describes the color buffer */
 436    GLframebuffer *glBuffer;     /* the ancillary buffers */
 437
 438    GLint board;                 /* the board used for this context */
 439    GLint width, height;         /* size of color buffer */
 440
 441    GrBuffer_t currentFB;
 442
 443    GLboolean bgrOrder;
 444    GrColor_t color;
 445    GrColor_t clearC;
 446    GrAlpha_t clearA;
 447    GLuint constColor;
 448    GrCullMode_t cullMode;
 449
 450    tfxUnitsState unitsState;
 451    tfxUnitsState restoreUnitsState;     /* saved during multipass */
 452    GLboolean multipass;                 /* true when drawing intermediate pass */
 453
 454    GLuint new_state;
 455    GLuint new_gl_state;
 456
 457    /* Texture Memory Manager Data
 458     */
 459    GLuint texBindNumber;
 460    GLint tmuSrc;
 461    GLuint lastUnitsMode;
 462    GLuint freeTexMem[FX_NUM_TMU];
 463    MemRange *tmPool;
 464    MemRange *tmFree[FX_NUM_TMU];
 465
 466    GLenum fogTableMode;
 467    GLfloat fogDensity;
 468    GLfloat fogStart, fogEnd;
 469    GrFog_t *fogTable;
 470    GLint textureAlign;
 471    GLint textureMaxLod;
 472
 473    /* Vertex building and storage:
 474     */
 475    GLuint tmu_source[FX_NUM_TMU];
 476    GLuint SetupIndex;
 477    GLuint stw_hint_state;       /* for grHints */
 478    GrVertex *verts;
 479    GLboolean snapVertices;      /* needed for older Voodoo hardware */
 480
 481    /* Rasterization:
 482     */
 483    GLuint render_index;
 484    GLuint fallback;
 485    GLenum render_primitive;
 486    GLenum raster_primitive;
 487
 488    /* Current rasterization functions
 489     */
 490    fx_point_func draw_point;
 491    fx_line_func draw_line;
 492    fx_tri_func draw_tri;
 493
 494
 495    /* Keep texture scales somewhere handy:
 496     */
 497    GLfloat s0scale;
 498    GLfloat s1scale;
 499    GLfloat t0scale;
 500    GLfloat t1scale;
 501
 502    GLfloat inv_s0scale;
 503    GLfloat inv_s1scale;
 504    GLfloat inv_t0scale;
 505    GLfloat inv_t1scale;
 506
 507    /* Glide stuff
 508     */
 509    tfxStats stats;
 510    void *state;
 511
 512    /* Options */
 513
 514    GLboolean verbose;
 515    GLboolean haveTwoTMUs;       /* True if we really have 2 tmu's  */
 516    GLboolean haveHwAlpha;
 517    GLboolean haveHwStencil;
 518    GLboolean haveZBuffer;
 519    GLboolean haveDoubleBuffer;
 520    GLboolean haveGlobalPaletteTexture;
 521    GLint swapInterval;
 522    GLint maxPendingSwapBuffers;
 523
 524    GrContext_t glideContext;
 525
 526    int screen_width;
 527    int screen_height;
 528    int clipMinX;
 529    int clipMaxX;
 530    int clipMinY;
 531    int clipMaxY;
 532
 533    int colDepth;
 534    GLboolean fsaa;
 535
 536    /* Glide (per card) capabilities. These get mirrored
 537     * from `glbHWConfig' when creating a new context...
 538     */
 539    GrSstType type;
 540    FxBool HavePalExt;   /* PALETTE6666 */
 541    FxBool HavePixExt;   /* PIXEXT */
 542    FxBool HaveTexFmt;   /* TEXFMT */
 543    FxBool HaveCmbExt;   /* COMBINE */
 544    FxBool HaveMirExt;   /* TEXMIRROR */
 545    FxBool HaveTexUma;   /* TEXUMA */
 546    FxBool HaveTexus2;   /* Texus 2 - FXT1 */
 547    struct tdfx_glide Glide;
 548    char rendererString[64];
 549 };
 550
 551
 552 extern void fxSetupFXUnits(GLcontext *);
 553 extern void fxSetupDDPointers(GLcontext *);
 554
 555 /* fxvb.c:
 556  */
 557 extern void fxAllocVB(GLcontext * ctx);
 558 extern void fxFreeVB(GLcontext * ctx);
 559 extern void fxPrintSetupFlags(char *msg, GLuint flags );
 560 extern void fxCheckTexSizes( GLcontext *ctx );
 561 extern void fxBuildVertices( GLcontext *ctx, GLuint start, GLuint end,
 562                              GLuint newinputs );
 563 extern void fxChooseVertexState( GLcontext *ctx );
 564
 565
 566
 567
 568
 569
 570 /* fxtrifuncs:
 571  */
 572 extern void fxDDInitTriFuncs(GLcontext *);
 573 extern void fxDDChooseRenderState(GLcontext * ctx);
 574
 575
 576 extern void fxUpdateDDSpanPointers(GLcontext *);
 577 extern void fxSetupDDSpanPointers(GLcontext *);
 578
 579 extern void fxPrintTextureData(tfxTexInfo * ti);
 580
 581 extern const struct gl_texture_format *
 582 fxDDChooseTextureFormat( GLcontext *ctx, GLint internalFormat,
 583                          GLenum srcFormat, GLenum srcType );
 584 extern void fxDDTexImage2D(GLcontext * ctx, GLenum target, GLint level,
 585                            GLint internalFormat, GLint width, GLint height,
 586                            GLint border, GLenum format, GLenum type,
 587                            const GLvoid * pixels,
 588                            const struct gl_pixelstore_attrib *packing,
 589                            struct gl_texture_object *texObj,
 590                            struct gl_texture_image *texImage);
 591 extern void fxDDTexSubImage2D(GLcontext * ctx, GLenum target, GLint level,
 592                               GLint xoffset, GLint yoffset,
 593                               GLsizei width, GLsizei height,
 594                               GLenum format, GLenum type,
 595                               const GLvoid * pixels,
 596                               const struct gl_pixelstore_attrib *packing,
 597                               struct gl_texture_object *texObj,
 598                               struct gl_texture_image *texImage);
 599 extern void fxDDCompressedTexImage2D(GLcontext *ctx, GLenum target,
 600                                      GLint level, GLint internalFormat,
 601                                      GLsizei width, GLsizei height, GLint border,
 602                                      GLsizei imageSize, const GLvoid *data,
 603                                      struct gl_texture_object *texObj,
 604                                      struct gl_texture_image *texImage);
 605 extern void fxDDCompressedTexSubImage2D(GLcontext *ctx, GLenum target,
 606                                         GLint level, GLint xoffset,
 607                                         GLint yoffset, GLsizei width,
 608                                         GLint height, GLenum format,
 609                                         GLsizei imageSize, const GLvoid *data,
 610                                         struct gl_texture_object *texObj,
 611                                         struct gl_texture_image *texImage);
 612 extern void fxDDTexImage1D(GLcontext * ctx, GLenum target, GLint level,
 613                            GLint internalFormat, GLint width,
 614                            GLint border, GLenum format, GLenum type,
 615                            const GLvoid * pixels,
 616                            const struct gl_pixelstore_attrib *packing,
 617                            struct gl_texture_object *texObj,
 618                            struct gl_texture_image *texImage);
 619 extern void fxDDTexSubImage1D(GLcontext * ctx, GLenum target, GLint level,
 620                               GLint xoffset, GLint width,
 621                               GLenum format, GLenum type,
 622                               const GLvoid * pixels,
 623                               const struct gl_pixelstore_attrib *packing,
 624                               struct gl_texture_object *texObj,
 625                               struct gl_texture_image *texImage);
 626 extern GLboolean fxDDTestProxyTexImage (GLcontext *ctx, GLenum target,
 627                                         GLint level, GLint internalFormat,
 628                                         GLenum format, GLenum type,
 629                                         GLint width, GLint height,
 630                                         GLint depth, GLint border);
 631 extern void fxDDTexEnv(GLcontext *, GLenum, GLenum, const GLfloat *);
 632 extern void fxDDTexParam(GLcontext *, GLenum, struct gl_texture_object *,
 633                          GLenum, const GLfloat *);
 634 extern void fxDDTexBind(GLcontext *, GLenum, struct gl_texture_object *);
 635 extern struct gl_texture_object *fxDDNewTextureObject( GLcontext *ctx, GLuint name, GLenum target );
 636 extern void fxDDTexDel(GLcontext *, struct gl_texture_object *);
 637 extern GLboolean fxDDIsTextureResident(GLcontext *, struct gl_texture_object *);
 638 extern void fxDDTexPalette(GLcontext *, struct gl_texture_object *);
 639 extern void fxDDTexUseGlbPalette(GLcontext *, GLboolean);
 640
 641 extern void fxDDEnable(GLcontext *, GLenum, GLboolean);
 642 extern void fxDDAlphaFunc(GLcontext *, GLenum, GLfloat);
 643 extern void fxDDBlendFuncSeparate(GLcontext *, GLenum, GLenum, GLenum, GLenum);
 644 extern void fxDDBlendEquationSeparate(GLcontext *, GLenum, GLenum);
 645 extern void fxDDDepthMask(GLcontext *, GLboolean);
 646 extern void fxDDDepthFunc(GLcontext *, GLenum);
 647 extern void fxDDStencilFuncSeparate (GLcontext *ctx, GLenum face, GLenum func, GLint ref, GLuint mask);
 648 extern void fxDDStencilMaskSeparate (GLcontext *ctx, GLenum face, GLuint mask);
 649 extern void fxDDStencilOpSeparate (GLcontext *ctx, GLenum face, GLenum sfail, GLenum zfail, GLenum zpass);
 650
 651 extern void fxDDInitExtensions(GLcontext * ctx);
 652
 653 extern void fxTMInit(fxMesaContext ctx);
 654 extern void fxTMClose(fxMesaContext ctx);
 655 extern void fxTMRestoreTextures_NoLock(fxMesaContext ctx);
 656 extern void fxTMMoveInTM(fxMesaContext, struct gl_texture_object *, GLint);
 657 extern void fxTMMoveOutTM(fxMesaContext, struct gl_texture_object *);
 658 #define fxTMMoveOutTM_NoLock fxTMMoveOutTM
 659 extern void fxTMFreeTexture(fxMesaContext, struct gl_texture_object *);
 660 extern void fxTMReloadMipMapLevel(fxMesaContext, struct gl_texture_object *,
 661                                   GLint);
 662 extern void fxTMReloadSubMipMapLevel(fxMesaContext,
 663                                      struct gl_texture_object *, GLint, GLint,
 664                                      GLint);
 665 extern int fxTMCheckStartAddr (fxMesaContext fxMesa, GLint tmu, tfxTexInfo *ti);
 666
 667 extern void fxTexGetFormat(GLcontext *, GLenum, GrTextureFormat_t *, GLint *); /* [koolsmoky] */
 668
 669 extern int fxTexGetInfo(int, int, GrLOD_t *, GrAspectRatio_t *,
 670                         float *, float *, int *, int *);
 671
 672 extern void fxDDScissor(GLcontext * ctx,
 673                         GLint x, GLint y, GLsizei w, GLsizei h);
 674 extern void fxDDFogfv(GLcontext * ctx, GLenum pname, const GLfloat * params);
 675 extern void fxDDColorMask(GLcontext * ctx,
 676                           GLboolean r, GLboolean g, GLboolean b, GLboolean a);
 677
 678 extern void fxDDWriteDepthSpan(GLcontext * ctx, GLuint n, GLint x, GLint y,
 679                                const GLuint depth[], const GLubyte mask[]);
 680
 681 extern void fxDDReadDepthSpan(GLcontext * ctx, GLuint n, GLint x, GLint y,
 682                               GLuint depth[]);
 683
 684 extern void fxDDWriteDepthPixels(GLcontext * ctx, GLuint n,
 685                                  const GLint x[], const GLint y[],
 686                                  const GLuint depth[], const GLubyte mask[]);
 687
 688 extern void fxDDReadDepthPixels(GLcontext * ctx, GLuint n,
 689                                 const GLint x[], const GLint y[],
 690                                 GLuint depth[]);
 691
 692 extern void fxDDShadeModel(GLcontext * ctx, GLenum mode);
 693
 694 extern void fxDDCullFace(GLcontext * ctx, GLenum mode);
 695 extern void fxDDFrontFace(GLcontext * ctx, GLenum mode);
 696
 697 extern void fxPrintRenderState(const char *msg, GLuint state);
 698 extern void fxPrintHintState(const char *msg, GLuint state);
 699
 700 extern int fxDDInitFxMesaContext(fxMesaContext fxMesa);
 701 extern void fxDDDestroyFxMesaContext(fxMesaContext fxMesa);
 702
 703
 704 extern void fxSetScissorValues(GLcontext * ctx);
 705 extern void fxTMMoveInTM_NoLock(fxMesaContext fxMesa,
 706                                 struct gl_texture_object *tObj, GLint where);
 707
 708 extern void fxCheckIsInHardware(GLcontext *ctx);
 709
 710 /* fxsetup:
 711  * semi-private functions
 712  */
 713 void fxSetupCull (GLcontext * ctx);
 714 void fxSetupScissor (GLcontext * ctx);
 715 void fxSetupColorMask (GLcontext * ctx);
 716 void fxSetupBlend (GLcontext *ctx);
 717 void fxSetupDepthTest (GLcontext *ctx);
 718 void fxSetupTexture (GLcontext *ctx);
 719 void fxSetupStencil (GLcontext *ctx);
 720 void fxSetupStencilFace (GLcontext *ctx, GLint face);
 721
 722 /* Flags for software fallback cases */
 723 #define FX_FALLBACK_TEXTURE_MAP         0x0001
 724 #define FX_FALLBACK_DRAW_BUFFER         0x0002
 725 #define FX_FALLBACK_SPECULAR            0x0004
 726 #define FX_FALLBACK_STENCIL             0x0008
 727 #define FX_FALLBACK_RENDER_MODE         0x0010
 728 #define FX_FALLBACK_LOGICOP             0x0020
 729 #define FX_FALLBACK_TEXTURE_ENV         0x0040
 730 #define FX_FALLBACK_TEXTURE_BORDER      0x0080
 731 #define FX_FALLBACK_COLORMASK           0x0100
 732 #define FX_FALLBACK_BLEND               0x0200
 733 #define FX_FALLBACK_TEXTURE_MULTI       0x0400
 734
 735 extern GLuint fx_check_IsInHardware(GLcontext *ctx);
 736
 737 /***
 738  *** CNORM: clamp float to [0,1] and map to float in [0,255]
 739  ***/
 740 #if defined(USE_IEEE) && !defined(DEBUG)
 741 #define IEEE_0996 0x3f7f0000    /* 0.996 or so */
 742 #define CNORM(N, F)                             \
 743         do {                                    \
 744            fi_type __tmp;                       \
 745            __tmp.f = (F);                       \
 746            if (__tmp.i < 0)                     \
 747               N = 0;                            \
 748            else if (__tmp.i >= IEEE_0996)       \
 749               N = 255.0f;                       \
 750            else {                               \
 751               N = (F) * 255.0f;                 \
 752            }                                    \
 753         } while (0)
 754 #else
 755 #define CNORM(n, f) \
 756         n = (CLAMP((f), 0.0F, 1.0F) * 255.0F)
 757 #endif
 758
 759 /* run-time debugging */
 760 #ifndef FX_DEBUG
 761 #define FX_DEBUG 0
 762 #endif
 763 #if FX_DEBUG
 764 extern int TDFX_DEBUG;
 765 #else
 766 #define TDFX_DEBUG              0
 767 #endif
 768
 769 /* dirty hacks */
 770 #define FX_RESCALE_BIG_TEXURES_HACK   1
 771 #define FX_COMPRESS_S3TC_AS_FXT1_HACK 1
 772
 773 #endif