src/mesa/drivers/dri/s3v/s3v_vb.c

   1 /*
   2  * Author: Max Lingua <sunmax@libero.it>
   3  */
   4
   5 #include "main/glheader.h"
   6 #include "main/mtypes.h"
   7 #include "main/macros.h"
   8 #include "main/colormac.h"
   9
  10 #include "swrast_setup/swrast_setup.h"
  11 #include "tnl/t_context.h"
  12 #include "tnl/tnl.h"
  13
  14 #include "s3v_context.h"
  15 #include "s3v_vb.h"
  16 #include "s3v_tris.h"
  17
  18 #define S3V_XYZW_BIT       0x1
  19 #define S3V_RGBA_BIT       0x2
  20 #define S3V_TEX0_BIT       0x4
  21 #define S3V_PTEX_BIT       0x8
  22 #define S3V_FOG_BIT        0x10
  23 #define S3V_MAX_SETUP      0x20
  24
  25 static struct {
  26    void                (*emit)( GLcontext *, GLuint, GLuint, void *, GLuint );
  27    tnl_interp_func      interp;
  28    tnl_copy_pv_func     copy_pv;
  29    GLboolean           (*check_tex_sizes)( GLcontext *ctx );
  30    GLuint               vertex_size;
  31    GLuint               vertex_stride_shift;
  32    GLuint               vertex_format;
  33 } setup_tab[S3V_MAX_SETUP];
  34
  35
  36 /* Only one vertex format, atm, so no need to give them names:
  37  */
  38 #define TINY_VERTEX_FORMAT      1
  39 #define NOTEX_VERTEX_FORMAT     0
  40 #define TEX0_VERTEX_FORMAT      0
  41 #define TEX1_VERTEX_FORMAT      0
  42 #define PROJ_TEX1_VERTEX_FORMAT 0
  43 #define TEX2_VERTEX_FORMAT      0
  44 #define TEX3_VERTEX_FORMAT      0
  45 #define PROJ_TEX3_VERTEX_FORMAT 0
  46
  47 #define DO_XYZW (IND & S3V_XYZW_BIT)
  48 #define DO_RGBA (IND & S3V_RGBA_BIT)
  49 #define DO_SPEC 0
  50 #define DO_FOG  (IND & S3V_FOG_BIT)
  51 #define DO_TEX0 (IND & S3V_TEX0_BIT)
  52 #define DO_TEX1 0
  53 #define DO_TEX2 0
  54 #define DO_TEX3 0
  55 #define DO_PTEX (IND & S3V_PTEX_BIT)
  56
  57 #define VERTEX s3vVertex
  58 #define LOCALVARS /* s3vContextPtr vmesa = S3V_CONTEXT(ctx); */
  59 #define GET_VIEWPORT_MAT() 0 /* vmesa->hw_viewport */
  60 #define GET_TEXSOURCE(n)  n
  61 #define GET_VERTEX_FORMAT() 0
  62 #define GET_VERTEX_SIZE() S3V_CONTEXT(ctx)->vertex_size * sizeof(GLuint)
  63 #define GET_VERTEX_STORE() S3V_CONTEXT(ctx)->verts
  64 #define GET_VERTEX_STRIDE_SHIFT() S3V_CONTEXT(ctx)->vertex_stride_shift
  65 #define INVALIDATE_STORED_VERTICES()
  66 #define GET_UBYTE_COLOR_STORE() &S3V_CONTEXT(ctx)->UbyteColor
  67 #define GET_UBYTE_SPEC_COLOR_STORE() &S3V_CONTEXT(ctx)->UbyteSecondaryColor
  68
  69 #define HAVE_HW_VIEWPORT    1   /* FIXME */
  70 #define HAVE_HW_DIVIDE      1
  71 #define HAVE_RGBA_COLOR     0   /* we're BGRA */
  72 #define HAVE_TINY_VERTICES  1
  73 #define HAVE_NOTEX_VERTICES 0
  74 #define HAVE_TEX0_VERTICES  0
  75 #define HAVE_TEX1_VERTICES  0
  76 #define HAVE_TEX2_VERTICES  0
  77 #define HAVE_TEX3_VERTICES  0
  78 #define HAVE_PTEX_VERTICES  1
  79
  80 /*
  81 #define SUBPIXEL_X -.5
  82 #define SUBPIXEL_Y -.5
  83 #define UNVIEWPORT_VARS  GLfloat h = S3V_CONTEXT(ctx)->driDrawable->h
  84 #define UNVIEWPORT_X(x)  x - SUBPIXEL_X
  85 #define UNVIEWPORT_Y(y)  - y + h + SUBPIXEL_Y
  86 #define UNVIEWPORT_Z(z)  z / vmesa->depth_scale
  87 */
  88
  89 #define PTEX_FALLBACK()         /* never needed */
  90
  91 #define IMPORT_QUALIFIER
  92 #define IMPORT_FLOAT_COLORS s3v_import_float_colors
  93 #define IMPORT_FLOAT_SPEC_COLORS s3v_import_float_spec_colors
  94
  95 #define INTERP_VERTEX setup_tab[S3V_CONTEXT(ctx)->SetupIndex].interp
  96 #define COPY_PV_VERTEX setup_tab[S3V_CONTEXT(ctx)->SetupIndex].copy_pv
  97
  98
  99
 100 /***********************************************************************
 101  *         Generate  pv-copying and translation functions              *
 102  ***********************************************************************/
 103
 104 #define TAG(x) s3v_##x
 105 #include "tnl_dd/t_dd_vb.c"
 106
 107 /***********************************************************************
 108  *             Generate vertex emit and interp functions               *
 109  ***********************************************************************/
 110
 111
 112 #define IND (S3V_XYZW_BIT|S3V_RGBA_BIT)
 113 #define TAG(x) x##_wg
 114 #include "tnl_dd/t_dd_vbtmp.h"
 115
 116 #define IND (S3V_XYZW_BIT|S3V_RGBA_BIT|S3V_TEX0_BIT)
 117 #define TAG(x) x##_wgt0
 118 #include "tnl_dd/t_dd_vbtmp.h"
 119
 120 #define IND (S3V_XYZW_BIT|S3V_RGBA_BIT|S3V_TEX0_BIT|S3V_PTEX_BIT)
 121 #define TAG(x) x##_wgpt0
 122 #include "tnl_dd/t_dd_vbtmp.h"
 123
 124 #define IND (S3V_TEX0_BIT)
 125 #define TAG(x) x##_t0
 126 #include "tnl_dd/t_dd_vbtmp.h"
 127
 128 #define IND (S3V_RGBA_BIT)
 129 #define TAG(x) x##_g
 130 #include "tnl_dd/t_dd_vbtmp.h"
 131
 132 #define IND (S3V_RGBA_BIT|S3V_TEX0_BIT)
 133 #define TAG(x) x##_gt0
 134 #include "tnl_dd/t_dd_vbtmp.h"
 135
 136 #define IND (S3V_XYZW_BIT|S3V_RGBA_BIT|S3V_FOG_BIT)
 137 #define TAG(x) x##_wgf
 138 #include "tnl_dd/t_dd_vbtmp.h"
 139
 140 #define IND (S3V_XYZW_BIT|S3V_RGBA_BIT|S3V_FOG_BIT|S3V_TEX0_BIT)
 141 #define TAG(x) x##_wgft0
 142 #include "tnl_dd/t_dd_vbtmp.h"
 143
 144 #define IND (S3V_XYZW_BIT|S3V_RGBA_BIT|S3V_FOG_BIT|S3V_TEX0_BIT|S3V_PTEX_BIT)
 145 #define TAG(x) x##_wgfpt0
 146 #include "tnl_dd/t_dd_vbtmp.h"
 147
 148 #define IND (S3V_FOG_BIT)
 149 #define TAG(x) x##_f
 150 #include "tnl_dd/t_dd_vbtmp.h"
 151
 152 #define IND (S3V_RGBA_BIT | S3V_FOG_BIT)
 153 #define TAG(x) x##_gf
 154 #include "tnl_dd/t_dd_vbtmp.h"
 155
 156 #define IND (S3V_RGBA_BIT | S3V_FOG_BIT | S3V_TEX0_BIT)
 157 #define TAG(x) x##_gft0
 158 #include "tnl_dd/t_dd_vbtmp.h"
 159
 160 static void init_setup_tab( void )
 161 {
 162    init_wg();           /* pos + col */
 163    init_wgt0();         /* pos + col + tex0 */
 164    init_wgpt0();        /* pos + col + p-tex0 (?) */
 165    init_t0();           /* tex0 */
 166    init_g();            /* col */
 167    init_gt0();          /* col + tex */
 168    init_wgf();
 169    init_wgft0();
 170    init_wgfpt0();
 171    init_f();
 172    init_gf();
 173    init_gft0();
 174 }
 175
 176
 177 #if 0
 178 void s3vPrintSetupFlags(char *msg, GLuint flags )
 179 {
 180    fprintf(stderr, "%s(%x): %s%s%s%s%s%s\n",
 181            msg,
 182            (int)flags,
 183            (flags & S3V_XYZW_BIT)      ? " xyzw," : "",
 184            (flags & S3V_RGBA_BIT)     ? " rgba," : "",
 185            (flags & S3V_SPEC_BIT)     ? " spec," : "",
 186            (flags & S3V_FOG_BIT)      ? " fog," : "",
 187            (flags & S3V_TEX0_BIT)     ? " tex-0," : "",
 188            (flags & S3V_TEX1_BIT)     ? " tex-1," : "");
 189 }
 190 #endif
 191
 192
 193 void s3vCheckTexSizes( GLcontext *ctx )
 194 {
 195    TNLcontext *tnl = TNL_CONTEXT(ctx);
 196    s3vContextPtr vmesa = S3V_CONTEXT( ctx );
 197
 198    if (!setup_tab[vmesa->SetupIndex].check_tex_sizes(ctx)) {
 199
 200       vmesa->SetupIndex |= (S3V_PTEX_BIT|S3V_RGBA_BIT);
 201
 202       if (1 || !(ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED))) {
 203          tnl->Driver.Render.Interp = setup_tab[vmesa->SetupIndex].interp;
 204          tnl->Driver.Render.CopyPV = setup_tab[vmesa->SetupIndex].copy_pv;
 205       }
 206    }
 207 }
 208
 209 void s3vBuildVertices( GLcontext *ctx,
 210                          GLuint start,
 211                          GLuint count,
 212                          GLuint newinputs )
 213 {
 214         s3vContextPtr vmesa = S3V_CONTEXT( ctx );
 215         GLubyte *v = ((GLubyte *)vmesa->verts +
 216                 (start<<vmesa->vertex_stride_shift));
 217         GLuint stride = 1<<vmesa->vertex_stride_shift;
 218
 219         DEBUG(("*** s3vBuildVertices ***\n"));
 220         DEBUG(("vmesa->SetupNewInputs = 0x%x\n", vmesa->SetupNewInputs));
 221         DEBUG(("vmesa->SetupIndex = 0x%x\n", vmesa->SetupIndex));
 222
 223 #if 1
 224         setup_tab[vmesa->SetupIndex].emit( ctx, start, count, v, stride );
 225 #else
 226         newinputs |= vmesa->SetupNewInputs;
 227         vmesa->SetupNewInputs = 0;
 228
 229         DEBUG(("newinputs is 0x%x\n", newinputs));
 230
 231         if (!newinputs) {
 232                 DEBUG(("!newinputs\n"));
 233                 return;
 234         }
 235
 236         if (newinputs & VERT_CLIP) {
 237         setup_tab[vmesa->SetupIndex].emit( ctx, start, count, v, stride );
 238         DEBUG(("newinputs & VERT_CLIP\n"));
 239         return;
 240         } /* else { */
 241 /*      GLuint ind = 0; */
 242
 243         if (newinputs & VERT_RGBA) {
 244                 DEBUG(("newinputs & VERT_RGBA\n"));
 245                 ind |= S3V_RGBA_BIT;
 246         }
 247
 248         if (newinputs & VERT_TEX0) {
 249                 DEBUG(("newinputs & VERT_TEX0\n"));
 250                 ind |= S3V_TEX0_BIT;
 251         }
 252
 253     if (newinputs & VERT_FOG_COORD)
 254         ind |= S3V_FOG_BIT;
 255
 256         if (vmesa->SetupIndex & S3V_PTEX_BIT)
 257                 ind = ~0;
 258
 259     ind &= vmesa->SetupIndex;
 260
 261         DEBUG(("vmesa->SetupIndex = 0x%x\n", vmesa->SetupIndex));
 262         DEBUG(("ind = 0x%x\n", ind));
 263         DEBUG(("ind & vmesa->SetupIndex = 0x%x\n", (ind & vmesa->SetupIndex)));
 264
 265         if (ind) {
 266                 setup_tab[ind].emit( ctx, start, count, v, stride );
 267         }
 268 #endif
 269 }
 270
 271 void s3vChooseVertexState( GLcontext *ctx )
 272 {
 273    s3vContextPtr vmesa = S3V_CONTEXT( ctx );
 274    TNLcontext *tnl = TNL_CONTEXT(ctx);
 275
 276    GLuint ind = S3V_XYZW_BIT | S3V_RGBA_BIT;
 277
 278    /* FIXME: will segv in tnl_dd/t_dd_vbtmp.h (line 196) on some demos */
 279 /*
 280    if (ctx->Fog.Enabled)
 281       ind |= S3V_FOG_BIT;
 282 */
 283
 284
 285    if (ctx->Texture.Unit[0]._ReallyEnabled) {
 286       _tnl_need_projected_coords( ctx, GL_FALSE );
 287       ind |= S3V_TEX0_BIT;
 288    } else {
 289       _tnl_need_projected_coords( ctx, GL_TRUE );
 290    }
 291
 292    vmesa->SetupIndex = ind;
 293
 294    if (ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED)) {
 295       tnl->Driver.Render.Interp = s3v_interp_extras;
 296       tnl->Driver.Render.CopyPV = s3v_copy_pv_extras;
 297    } else {
 298       tnl->Driver.Render.Interp = setup_tab[ind].interp;
 299       tnl->Driver.Render.CopyPV = setup_tab[ind].copy_pv;
 300    }
 301 }
 302
 303
 304 void s3vInitVB( GLcontext *ctx )
 305 {
 306    s3vContextPtr vmesa = S3V_CONTEXT(ctx);
 307    GLuint size = TNL_CONTEXT(ctx)->vb.Size;
 308
 309    vmesa->verts = (char *)ALIGN_MALLOC(size * 4 * 16, 32);
 310
 311    {
 312       static int firsttime = 1;
 313       if (firsttime) {
 314          init_setup_tab();
 315          firsttime = 0;
 316          vmesa->vertex_stride_shift = 6 /* 4 */; /* FIXME - only one vertex setup */
 317       }
 318    }
 319 }
 320
 321
 322 void s3vFreeVB( GLcontext *ctx )
 323 {
 324    s3vContextPtr vmesa = S3V_CONTEXT(ctx);
 325    if (vmesa->verts) {
 326       ALIGN_FREE(vmesa->verts);
 327       vmesa->verts = 0;
 328    }
 329
 330    if (vmesa->UbyteSecondaryColor.Ptr) {
 331       ALIGN_FREE((void *)vmesa->UbyteSecondaryColor.Ptr);
 332       vmesa->UbyteSecondaryColor.Ptr = 0;
 333    }
 334
 335    if (vmesa->UbyteColor.Ptr) {
 336       ALIGN_FREE((void *)vmesa->UbyteColor.Ptr);
 337       vmesa->UbyteColor.Ptr = 0;
 338    }
 339 }