src/mesa/drivers/dri/trident/trident_vb.c

   1 /*
   2  * Copyright 2002 by Alan Hourihane, Sychdyn, North Wales, UK.
   3  *
   4  * Permission to use, copy, modify, distribute, and sell this software and its
   5  * documentation for any purpose is hereby granted without fee, provided that
   6  * the above copyright notice appear in all copies and that both that
   7  * copyright notice and this permission notice appear in supporting
   8  * documentation, and that the name of Alan Hourihane not be used in
   9  * advertising or publicity pertaining to distribution of the software without
  10  * specific, written prior permission.  Alan Hourihane makes no representations
  11  * about the suitability of this software for any purpose.  It is provided
  12  * "as is" without express or implied warranty.
  13  *
  14  * ALAN HOURIHANE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
  15  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
  16  * EVENT SHALL ALAN HOURIHANE BE LIABLE FOR ANY SPECIAL, INDIRECT OR
  17  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
  18  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
  19  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  20  * PERFORMANCE OF THIS SOFTWARE.
  21  *
  22  * Authors:  Alan Hourihane, <alanh@fairlite.demon.co.uk>
  23  *
  24  * Trident CyberBladeXP driver.
  25  *
  26  */
  27 #include "main/glheader.h"
  28 #include "main/mtypes.h"
  29 #include "main/macros.h"
  30 #include "main/colormac.h"
  31
  32 #include "swrast_setup/swrast_setup.h"
  33 #include "swrast/swrast.h"
  34 #include "tnl/t_context.h"
  35 #include "tnl/tnl.h"
  36
  37 #include "trident_context.h"
  38
  39 #define TRIDENT_TEX1_BIT       0x1
  40 #define TRIDENT_TEX0_BIT       0x2
  41 #define TRIDENT_RGBA_BIT       0x4
  42 #define TRIDENT_SPEC_BIT       0x8
  43 #define TRIDENT_FOG_BIT        0x10
  44 #define TRIDENT_XYZW_BIT       0x20
  45 #define TRIDENT_PTEX_BIT       0x40
  46 #define TRIDENT_MAX_SETUP      0x80
  47
  48 static struct {
  49    void                (*emit)( GLcontext *, GLuint, GLuint, void *, GLuint );
  50    tnl_interp_func      interp;
  51    tnl_copy_pv_func     copy_pv;
  52    GLboolean           (*check_tex_sizes)( GLcontext *ctx );
  53    GLuint               vertex_size;
  54    GLuint               vertex_stride_shift;
  55    GLuint               vertex_format;
  56 } setup_tab[TRIDENT_MAX_SETUP];
  57
  58 #define TINY_VERTEX_FORMAT      1
  59 #define NOTEX_VERTEX_FORMAT     2
  60 #define TEX0_VERTEX_FORMAT      3
  61 #define TEX1_VERTEX_FORMAT      4
  62 #define PROJ_TEX1_VERTEX_FORMAT 5
  63 #define TEX2_VERTEX_FORMAT      6
  64 #define TEX3_VERTEX_FORMAT      7
  65 #define PROJ_TEX3_VERTEX_FORMAT 8
  66
  67 #define DO_XYZW (IND & TRIDENT_XYZW_BIT)
  68 #define DO_RGBA (IND & TRIDENT_RGBA_BIT)
  69 #define DO_SPEC (IND & TRIDENT_SPEC_BIT)
  70 #define DO_FOG  (IND & TRIDENT_FOG_BIT)
  71 #define DO_TEX0 (IND & TRIDENT_TEX0_BIT)
  72 #define DO_TEX1 (IND & TRIDENT_TEX1_BIT)
  73 #define DO_TEX2 0
  74 #define DO_TEX3 0
  75 #define DO_PTEX (IND & TRIDENT_PTEX_BIT)
  76
  77 #define VERTEX tridentVertex
  78 #define VERTEX_COLOR trident_color_t
  79 #define LOCALVARS tridentContextPtr tmesa = TRIDENT_CONTEXT(ctx);
  80 #define GET_VIEWPORT_MAT()              tmesa->hw_viewport
  81 #define GET_TEXSOURCE(n)                tmesa->tmu_source[n]
  82 #define GET_VERTEX_FORMAT()             tmesa->vertex_format
  83 #define GET_VERTEX_SIZE()               tmesa->vertex_size
  84 #define GET_VERTEX_STORE()              tmesa->verts
  85 #define GET_VERTEX_STRIDE_SHIFT()       tmesa->vertex_stride_shift
  86 #define GET_UBYTE_COLOR_STORE()         &tmesa->UbyteColor
  87 #define GET_UBYTE_SPEC_COLOR_STORE()    &tmesa->UbyteSecondaryColor
  88
  89 #define HAVE_HW_VIEWPORT    0
  90 #define HAVE_HW_DIVIDE      0
  91 #define HAVE_RGBA_COLOR     0
  92 #define HAVE_TINY_VERTICES  1
  93 #define HAVE_NOTEX_VERTICES 1
  94 #define HAVE_TEX0_VERTICES  1
  95 #define HAVE_TEX1_VERTICES  1
  96 #define HAVE_TEX2_VERTICES  0
  97 #define HAVE_TEX3_VERTICES  0
  98 #define HAVE_PTEX_VERTICES  0
  99
 100 #define UNVIEWPORT_VARS                                 \
 101    const GLfloat dx = - tmesa->drawX - SUBPIXEL_X;      \
 102    const GLfloat dy = (tmesa->driDrawable->h +          \
 103                        tmesa->drawY + SUBPIXEL_Y);      \
 104    const GLfloat sz = 1.0 / tmesa->depth_scale
 105
 106 #define UNVIEWPORT_X(x)    x  +  dx;
 107 #define UNVIEWPORT_Y(y)  - y  +  dy;
 108 #define UNVIEWPORT_Z(z)    z  *  sz;
 109
 110 #define PTEX_FALLBACK()  tridentFallback(TRIDENT_CONTEXT(ctx), TRIDENT_FALLBACK_TEXTURE, 1)
 111
 112 #define IMPORT_FLOAT_COLORS trident_import_float_colors
 113 #define IMPORT_FLOAT_SPEC_COLORS trident_import_float_spec_colors
 114
 115 #define INTERP_VERTEX setup_tab[tmesa->SetupIndex].interp
 116 #define COPY_PV_VERTEX setup_tab[tmesa->SetupIndex].copy_pv
 117
 118 /***********************************************************************
 119  *         Generate  pv-copying and translation functions              *
 120  ***********************************************************************/
 121
 122 #define TAG(x) trident_##x
 123 #include "tnl_dd/t_dd_vb.c"
 124
 125 /***********************************************************************
 126  *             Generate vertex emit and interp functions               *
 127  ***********************************************************************/
 128
 129 #define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT)
 130 #define TAG(x) x##_wg
 131 #include "tnl_dd/t_dd_vbtmp.h"
 132
 133 #define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_SPEC_BIT)
 134 #define TAG(x) x##_wgs
 135 #include "tnl_dd/t_dd_vbtmp.h"
 136
 137 #define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_TEX0_BIT)
 138 #define TAG(x) x##_wgt0
 139 #include "tnl_dd/t_dd_vbtmp.h"
 140
 141 #define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_TEX0_BIT|TRIDENT_TEX1_BIT)
 142 #define TAG(x) x##_wgt0t1
 143 #include "tnl_dd/t_dd_vbtmp.h"
 144
 145 #define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_TEX0_BIT|TRIDENT_PTEX_BIT)
 146 #define TAG(x) x##_wgpt0
 147 #include "tnl_dd/t_dd_vbtmp.h"
 148
 149 #define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_SPEC_BIT|TRIDENT_TEX0_BIT)
 150 #define TAG(x) x##_wgst0
 151 #include "tnl_dd/t_dd_vbtmp.h"
 152
 153 #define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_SPEC_BIT|TRIDENT_TEX0_BIT|TRIDENT_TEX1_BIT)
 154 #define TAG(x) x##_wgst0t1
 155 #include "tnl_dd/t_dd_vbtmp.h"
 156
 157 #define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_SPEC_BIT|TRIDENT_TEX0_BIT|TRIDENT_PTEX_BIT)
 158 #define TAG(x) x##_wgspt0
 159 #include "tnl_dd/t_dd_vbtmp.h"
 160
 161 #define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_FOG_BIT)
 162 #define TAG(x) x##_wgf
 163 #include "tnl_dd/t_dd_vbtmp.h"
 164
 165 #define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_FOG_BIT|TRIDENT_SPEC_BIT)
 166 #define TAG(x) x##_wgfs
 167 #include "tnl_dd/t_dd_vbtmp.h"
 168
 169 #define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_FOG_BIT|TRIDENT_TEX0_BIT)
 170 #define TAG(x) x##_wgft0
 171 #include "tnl_dd/t_dd_vbtmp.h"
 172
 173 #define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_FOG_BIT|TRIDENT_TEX0_BIT|TRIDENT_TEX1_BIT)
 174 #define TAG(x) x##_wgft0t1
 175 #include "tnl_dd/t_dd_vbtmp.h"
 176
 177 #define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_FOG_BIT|TRIDENT_TEX0_BIT|TRIDENT_PTEX_BIT)
 178 #define TAG(x) x##_wgfpt0
 179 #include "tnl_dd/t_dd_vbtmp.h"
 180
 181 #define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_FOG_BIT|TRIDENT_SPEC_BIT|TRIDENT_TEX0_BIT)
 182 #define TAG(x) x##_wgfst0
 183 #include "tnl_dd/t_dd_vbtmp.h"
 184
 185 #define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_FOG_BIT|TRIDENT_SPEC_BIT|TRIDENT_TEX0_BIT|TRIDENT_TEX1_BIT)
 186 #define TAG(x) x##_wgfst0t1
 187 #include "tnl_dd/t_dd_vbtmp.h"
 188
 189 #define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_FOG_BIT|TRIDENT_SPEC_BIT|TRIDENT_TEX0_BIT|TRIDENT_PTEX_BIT)
 190 #define TAG(x) x##_wgfspt0
 191 #include "tnl_dd/t_dd_vbtmp.h"
 192
 193 #define IND (TRIDENT_TEX0_BIT)
 194 #define TAG(x) x##_t0
 195 #include "tnl_dd/t_dd_vbtmp.h"
 196
 197 #define IND (TRIDENT_TEX0_BIT|TRIDENT_TEX1_BIT)
 198 #define TAG(x) x##_t0t1
 199 #include "tnl_dd/t_dd_vbtmp.h"
 200
 201 #define IND (TRIDENT_FOG_BIT)
 202 #define TAG(x) x##_f
 203 #include "tnl_dd/t_dd_vbtmp.h"
 204
 205 #define IND (TRIDENT_FOG_BIT|TRIDENT_TEX0_BIT)
 206 #define TAG(x) x##_ft0
 207 #include "tnl_dd/t_dd_vbtmp.h"
 208
 209 #define IND (TRIDENT_FOG_BIT|TRIDENT_TEX0_BIT|TRIDENT_TEX1_BIT)
 210 #define TAG(x) x##_ft0t1
 211 #include "tnl_dd/t_dd_vbtmp.h"
 212
 213 #define IND (TRIDENT_RGBA_BIT)
 214 #define TAG(x) x##_g
 215 #include "tnl_dd/t_dd_vbtmp.h"
 216
 217 #define IND (TRIDENT_RGBA_BIT|TRIDENT_SPEC_BIT)
 218 #define TAG(x) x##_gs
 219 #include "tnl_dd/t_dd_vbtmp.h"
 220
 221 #define IND (TRIDENT_RGBA_BIT|TRIDENT_TEX0_BIT)
 222 #define TAG(x) x##_gt0
 223 #include "tnl_dd/t_dd_vbtmp.h"
 224
 225 #define IND (TRIDENT_RGBA_BIT|TRIDENT_TEX0_BIT|TRIDENT_TEX1_BIT)
 226 #define TAG(x) x##_gt0t1
 227 #include "tnl_dd/t_dd_vbtmp.h"
 228
 229 #define IND (TRIDENT_RGBA_BIT|TRIDENT_SPEC_BIT|TRIDENT_TEX0_BIT)
 230 #define TAG(x) x##_gst0
 231 #include "tnl_dd/t_dd_vbtmp.h"
 232
 233 #define IND (TRIDENT_RGBA_BIT|TRIDENT_SPEC_BIT|TRIDENT_TEX0_BIT|TRIDENT_TEX1_BIT)
 234 #define TAG(x) x##_gst0t1
 235 #include "tnl_dd/t_dd_vbtmp.h"
 236
 237 #define IND (TRIDENT_RGBA_BIT|TRIDENT_FOG_BIT)
 238 #define TAG(x) x##_gf
 239 #include "tnl_dd/t_dd_vbtmp.h"
 240
 241 #define IND (TRIDENT_RGBA_BIT|TRIDENT_FOG_BIT|TRIDENT_SPEC_BIT)
 242 #define TAG(x) x##_gfs
 243 #include "tnl_dd/t_dd_vbtmp.h"
 244
 245 #define IND (TRIDENT_RGBA_BIT|TRIDENT_FOG_BIT|TRIDENT_TEX0_BIT)
 246 #define TAG(x) x##_gft0
 247 #include "tnl_dd/t_dd_vbtmp.h"
 248
 249 #define IND (TRIDENT_RGBA_BIT|TRIDENT_FOG_BIT|TRIDENT_TEX0_BIT|TRIDENT_TEX1_BIT)
 250 #define TAG(x) x##_gft0t1
 251 #include "tnl_dd/t_dd_vbtmp.h"
 252
 253 #define IND (TRIDENT_RGBA_BIT|TRIDENT_FOG_BIT|TRIDENT_SPEC_BIT|TRIDENT_TEX0_BIT)
 254 #define TAG(x) x##_gfst0
 255 #include "tnl_dd/t_dd_vbtmp.h"
 256
 257 #define IND (TRIDENT_RGBA_BIT|TRIDENT_FOG_BIT|TRIDENT_SPEC_BIT|TRIDENT_TEX0_BIT|TRIDENT_TEX1_BIT)
 258 #define TAG(x) x##_gfst0t1
 259 #include "tnl_dd/t_dd_vbtmp.h"
 260
 261 static void init_setup_tab( void )
 262 {
 263    init_wg();
 264    init_wgs();
 265    init_wgt0();
 266    init_wgt0t1();
 267    init_wgpt0();
 268    init_wgst0();
 269    init_wgst0t1();
 270    init_wgspt0();
 271    init_wgf();
 272    init_wgfs();
 273    init_wgft0();
 274    init_wgft0t1();
 275    init_wgfpt0();
 276    init_wgfst0();
 277    init_wgfst0t1();
 278    init_wgfspt0();
 279    init_t0();
 280    init_t0t1();
 281    init_f();
 282    init_ft0();
 283    init_ft0t1();
 284    init_g();
 285    init_gs();
 286    init_gt0();
 287    init_gt0t1();
 288    init_gst0();
 289    init_gst0t1();
 290    init_gf();
 291    init_gfs();
 292    init_gft0();
 293    init_gft0t1();
 294    init_gfst0();
 295    init_gfst0t1();
 296 }
 297
 298 void tridentBuildVertices( GLcontext *ctx,
 299                          GLuint start,
 300                          GLuint count,
 301                          GLuint newinputs )
 302 {
 303    tridentContextPtr tmesa = TRIDENT_CONTEXT( ctx );
 304    GLubyte *v = ((GLubyte *)tmesa->verts + (start<<tmesa->vertex_stride_shift));
 305    GLuint stride = 1<<tmesa->vertex_stride_shift;
 306
 307    newinputs |= tmesa->SetupNewInputs;
 308    tmesa->SetupNewInputs = 0;
 309
 310    if (!newinputs)
 311       return;
 312
 313    if (newinputs & VERT_BIT_POS) {
 314       setup_tab[tmesa->SetupIndex].emit( ctx, start, count, v, stride );
 315    } else {
 316       GLuint ind = 0;
 317
 318       if (newinputs & VERT_BIT_COLOR0)
 319          ind |= TRIDENT_RGBA_BIT;
 320
 321       if (newinputs & VERT_BIT_COLOR1)
 322          ind |= TRIDENT_SPEC_BIT;
 323
 324       if (newinputs & VERT_BIT_TEX0)
 325          ind |= TRIDENT_TEX0_BIT;
 326
 327       if (newinputs & VERT_BIT_TEX1)
 328          ind |= TRIDENT_TEX1_BIT;
 329
 330       if (newinputs & VERT_BIT_FOG)
 331          ind |= TRIDENT_FOG_BIT;
 332
 333       if (tmesa->SetupIndex & TRIDENT_PTEX_BIT)
 334          ind = ~0;
 335
 336       ind &= tmesa->SetupIndex;
 337
 338       if (ind) {
 339          setup_tab[ind].emit( ctx, start, count, v, stride );
 340       }
 341    }
 342 }
 343
 344 void tridentCheckTexSizes( GLcontext *ctx )
 345 {
 346    tridentContextPtr tmesa = TRIDENT_CONTEXT( ctx );
 347
 348    if (!setup_tab[tmesa->SetupIndex].check_tex_sizes(ctx)) {
 349       TNLcontext *tnl = TNL_CONTEXT(ctx);
 350
 351       /* Invalidate stored verts
 352        */
 353       tmesa->SetupNewInputs = ~0;
 354       tmesa->SetupIndex |= TRIDENT_PTEX_BIT;
 355
 356       if (!tmesa->Fallback &&
 357           !(ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED))) {
 358          tnl->Driver.Render.Interp = setup_tab[tmesa->SetupIndex].interp;
 359          tnl->Driver.Render.CopyPV = setup_tab[tmesa->SetupIndex].copy_pv;
 360       }
 361    }
 362 }
 363
 364 void tridentChooseVertexState( GLcontext *ctx )
 365 {
 366    tridentContextPtr tmesa = TRIDENT_CONTEXT( ctx );
 367    TNLcontext *tnl = TNL_CONTEXT(ctx);
 368    GLuint ind = TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT;
 369
 370    if (ctx->_TriangleCaps & DD_SEPARATE_SPECULAR)
 371       ind |= TRIDENT_SPEC_BIT;
 372
 373    if (ctx->Fog.Enabled)
 374       ind |= TRIDENT_FOG_BIT;
 375
 376    if (ctx->Texture.Unit[0]._ReallyEnabled) {
 377       ind |= TRIDENT_TEX0_BIT;
 378       if (ctx->Texture.Unit[1]._ReallyEnabled) {
 379          ind |= TRIDENT_TEX1_BIT;
 380       }
 381    }
 382
 383    tmesa->SetupIndex = ind;
 384
 385    if (ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED)) {
 386       tnl->Driver.Render.Interp = trident_interp_extras;
 387       tnl->Driver.Render.CopyPV = trident_copy_pv_extras;
 388    } else {
 389       tnl->Driver.Render.Interp = setup_tab[ind].interp;
 390       tnl->Driver.Render.CopyPV = setup_tab[ind].copy_pv;
 391    }
 392
 393    if (setup_tab[ind].vertex_format != tmesa->vertex_format) {
 394       tmesa->vertex_format = setup_tab[ind].vertex_format;
 395       tmesa->vertex_size = setup_tab[ind].vertex_size;
 396       tmesa->vertex_stride_shift = setup_tab[ind].vertex_stride_shift;
 397    }
 398 }
 399
 400 void tridentInitVB( GLcontext *ctx )
 401 {
 402    tridentContextPtr tmesa = TRIDENT_CONTEXT(ctx);
 403    GLuint size = TNL_CONTEXT(ctx)->vb.Size;
 404
 405    tmesa->verts = (char *)ALIGN_MALLOC( size * 16 * 4, 32 );
 406
 407    {
 408       static int firsttime = 1;
 409       if (firsttime) {
 410          init_setup_tab();
 411          firsttime = 0;
 412       }
 413    }
 414 }
 415
 416 void tridentFreeVB( GLcontext *ctx )
 417 {
 418    tridentContextPtr tmesa = TRIDENT_CONTEXT(ctx);
 419
 420    if (tmesa->verts) {
 421       ALIGN_FREE(tmesa->verts);
 422       tmesa->verts = 0;
 423    }
 424
 425    if (tmesa->UbyteSecondaryColor.Ptr) {
 426       ALIGN_FREE((void *)tmesa->UbyteSecondaryColor.Ptr);
 427       tmesa->UbyteSecondaryColor.Ptr = 0;
 428    }
 429
 430    if (tmesa->UbyteColor.Ptr) {
 431       ALIGN_FREE((void *)tmesa->UbyteColor.Ptr);
 432       tmesa->UbyteColor.Ptr = 0;
 433    }
 434 }