src/mesa/drivers/dri/unichrome/via_vb.c

   1 /*
   2  * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
   3  * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sub license,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the
  13  * next paragraph) shall be included in all copies or substantial portions
  14  * of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  19  * VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 #include "glheader.h"
  26 #include "mtypes.h"
  27 #include "imports.h"
  28 #include "macros.h"
  29 #include "colormac.h"
  30
  31 #include "swrast_setup/swrast_setup.h"
  32 #include "tnl/t_context.h"
  33
  34 #include "via_context.h"
  35 #include "via_vb.h"
  36 #include "via_ioctl.h"
  37 #include "via_tris.h"
  38 #include "via_state.h"
  39
  40 static struct {
  41     void                (*emit)(GLcontext *, GLuint, GLuint, void *, GLuint);
  42     tnl_interp_func          interp;
  43     tnl_copy_pv_func         copyPv;
  44     GLboolean           (*check_tex_sizes)(GLcontext *ctx);
  45     GLuint               vertexSize;
  46     GLuint               vertexStrideShift;
  47     GLuint               vertexFormat;
  48 } setup_tab[VIA_MAX_SETUP];
  49
  50 #define TINY_VERTEX_FORMAT      1
  51 #define NOTEX_VERTEX_FORMAT     2
  52 #define TEX0_VERTEX_FORMAT      3
  53 #define TEX1_VERTEX_FORMAT      4
  54
  55 #define PROJ_TEX1_VERTEX_FORMAT 0
  56 #define TEX2_VERTEX_FORMAT      0
  57 #define TEX3_VERTEX_FORMAT      0
  58 #define PROJ_TEX3_VERTEX_FORMAT 0
  59
  60 #define DO_XYZW (IND & VIA_XYZW_BIT)
  61 #define DO_RGBA (IND & VIA_RGBA_BIT)
  62 #define DO_SPEC (IND & VIA_SPEC_BIT)
  63 #define DO_FOG  (IND & VIA_FOG_BIT)
  64 #define DO_TEX0 (IND & VIA_TEX0_BIT)
  65 #define DO_TEX1 (IND & VIA_TEX1_BIT)
  66 #define DO_TEX2 0
  67 #define DO_TEX3 0
  68 #define DO_PTEX (IND & VIA_PTEX_BIT)
  69
  70 #define VERTEX viaVertex
  71 #define VERTEX_COLOR via_color_t
  72 #define GET_VIEWPORT_MAT() VIA_CONTEXT(ctx)->ViewportMatrix.m
  73 #define GET_TEXSOURCE(n)  n
  74 #define GET_VERTEX_FORMAT() VIA_CONTEXT(ctx)->vertexSize
  75 #define GET_VERTEX_SIZE() VIA_CONTEXT(ctx)->vertexSize
  76 #define GET_VERTEX_STORE() VIA_CONTEXT(ctx)->verts
  77 #define GET_VERTEX_STRIDE_SHIFT() VIA_CONTEXT(ctx)->vertexStrideShift
  78 #define GET_UBYTE_COLOR_STORE() &VIA_CONTEXT(ctx)->UbyteColor
  79 #define GET_UBYTE_SPEC_COLOR_STORE() &VIA_CONTEXT(ctx)->UbyteSecondaryColor
  80 #define INVALIDATE_STORED_VERTICES()
  81
  82 #define HAVE_HW_VIEWPORT    0
  83 #define HAVE_HW_DIVIDE      0
  84 #define HAVE_RGBA_COLOR     0
  85 #define HAVE_TINY_VERTICES  1
  86 #define HAVE_NOTEX_VERTICES 1
  87 #define HAVE_TEX0_VERTICES  1
  88 #define HAVE_TEX1_VERTICES  1
  89 #define HAVE_TEX2_VERTICES  0
  90 #define HAVE_TEX3_VERTICES  0
  91 #define HAVE_PTEX_VERTICES  0
  92
  93 #define UNVIEWPORT_VARS  GLfloat h = VIA_CONTEXT(ctx)->driDrawable->h
  94 #define UNVIEWPORT_X(x)  x - SUBPIXEL_X
  95 #define UNVIEWPORT_Y(y)  - y + h + SUBPIXEL_Y
  96 #define UNVIEWPORT_Z(z)  z * (float)0xffffffff
  97
  98 #define PTEX_FALLBACK() FALLBACK(VIA_CONTEXT(ctx), VIA_FALLBACK_TEXTURE, 1)
  99
 100 #define IMPORT_FLOAT_COLORS via_import_float_colors
 101 #define IMPORT_FLOAT_SPEC_COLORS via_import_float_spec_colors
 102
 103 #define INTERP_VERTEX setup_tab[VIA_CONTEXT(ctx)->setupIndex].interp
 104 #define COPY_PV_VERTEX setup_tab[VIA_CONTEXT(ctx)->setupIndex].copyPv
 105
 106
 107 /***********************************************************************
 108  *         Generate  pv-copying and translation functions              *
 109  ***********************************************************************/
 110
 111 #define TAG(x) via_##x
 112 #include "tnl_dd/t_dd_vb.c"
 113
 114 /***********************************************************************
 115  *             Generate vertex emit and interp functions               *
 116  ***********************************************************************/
 117 #define IND (VIA_XYZW_BIT | VIA_RGBA_BIT)
 118 #define TAG(x) x##_wg
 119 #include "via_dd_vbtmp.h"
 120
 121 #define IND (VIA_XYZW_BIT | VIA_RGBA_BIT | VIA_SPEC_BIT)
 122 #define TAG(x) x##_wgs
 123 #include "via_dd_vbtmp.h"
 124
 125 #define IND (VIA_XYZW_BIT | VIA_RGBA_BIT | VIA_TEX0_BIT)
 126 #define TAG(x) x##_wgt0
 127 #include "via_dd_vbtmp.h"
 128
 129 #define IND (VIA_XYZW_BIT | VIA_RGBA_BIT | VIA_TEX0_BIT | VIA_TEX1_BIT)
 130 #define TAG(x) x##_wgt0t1
 131 #include "via_dd_vbtmp.h"
 132
 133 #define IND (VIA_XYZW_BIT | VIA_RGBA_BIT | VIA_TEX0_BIT | VIA_PTEX_BIT)
 134 #define TAG(x) x##_wgpt0
 135 #include "via_dd_vbtmp.h"
 136
 137 #define IND (VIA_XYZW_BIT | VIA_RGBA_BIT | VIA_TEX0_BIT | VIA_TEX1_BIT |\
 138              VIA_PTEX_BIT)
 139 #define TAG(x) x##_wgpt0t1
 140 #include "via_dd_vbtmp.h"
 141
 142 #define IND (VIA_XYZW_BIT | VIA_RGBA_BIT | VIA_SPEC_BIT | VIA_TEX0_BIT)
 143 #define TAG(x) x##_wgst0
 144 #include "via_dd_vbtmp.h"
 145
 146 #define IND (VIA_XYZW_BIT | VIA_RGBA_BIT | VIA_SPEC_BIT | VIA_TEX0_BIT |\
 147              VIA_TEX1_BIT)
 148 #define TAG(x) x##_wgst0t1
 149 #include "via_dd_vbtmp.h"
 150
 151 #define IND (VIA_XYZW_BIT | VIA_RGBA_BIT | VIA_SPEC_BIT | VIA_TEX0_BIT |\
 152              VIA_PTEX_BIT)
 153 #define TAG(x) x##_wgspt0
 154 #include "via_dd_vbtmp.h"
 155
 156 #define IND (VIA_XYZW_BIT | VIA_RGBA_BIT | VIA_SPEC_BIT | VIA_TEX0_BIT |\
 157              VIA_TEX1_BIT | VIA_PTEX_BIT)
 158 #define TAG(x) x##_wgspt0t1
 159 #include "via_dd_vbtmp.h"
 160
 161 #define IND (VIA_XYZW_BIT | VIA_RGBA_BIT | VIA_FOG_BIT)
 162 #define TAG(x) x##_wgf
 163 #include "via_dd_vbtmp.h"
 164
 165 #define IND (VIA_XYZW_BIT | VIA_RGBA_BIT | VIA_FOG_BIT | VIA_SPEC_BIT)
 166 #define TAG(x) x##_wgfs
 167 #include "via_dd_vbtmp.h"
 168
 169 #define IND (VIA_XYZW_BIT | VIA_RGBA_BIT | VIA_FOG_BIT | VIA_TEX0_BIT)
 170 #define TAG(x) x##_wgft0
 171 #include "via_dd_vbtmp.h"
 172
 173 #define IND (VIA_XYZW_BIT | VIA_RGBA_BIT | VIA_FOG_BIT | VIA_TEX0_BIT |\
 174              VIA_TEX1_BIT)
 175 #define TAG(x) x##_wgft0t1
 176 #include "via_dd_vbtmp.h"
 177
 178 #define IND (VIA_XYZW_BIT | VIA_RGBA_BIT | VIA_FOG_BIT | VIA_TEX0_BIT |\
 179              VIA_PTEX_BIT)
 180 #define TAG(x) x##_wgfpt0
 181 #include "via_dd_vbtmp.h"
 182
 183 #define IND (VIA_XYZW_BIT | VIA_RGBA_BIT | VIA_FOG_BIT | VIA_TEX0_BIT |\
 184              VIA_TEX1_BIT | VIA_PTEX_BIT)
 185 #define TAG(x) x##_wgfpt0t1
 186 #include "via_dd_vbtmp.h"
 187
 188 #define IND (VIA_XYZW_BIT | VIA_RGBA_BIT | VIA_FOG_BIT | VIA_SPEC_BIT |\
 189              VIA_TEX0_BIT)
 190 #define TAG(x) x##_wgfst0
 191 #include "via_dd_vbtmp.h"
 192
 193 #define IND (VIA_XYZW_BIT | VIA_RGBA_BIT | VIA_FOG_BIT | VIA_SPEC_BIT |\
 194              VIA_TEX0_BIT | VIA_TEX1_BIT)
 195 #define TAG(x) x##_wgfst0t1
 196 #include "via_dd_vbtmp.h"
 197
 198 #define IND (VIA_XYZW_BIT | VIA_RGBA_BIT | VIA_FOG_BIT | VIA_SPEC_BIT |\
 199              VIA_TEX0_BIT | VIA_PTEX_BIT)
 200 #define TAG(x) x##_wgfspt0
 201 #include "via_dd_vbtmp.h"
 202
 203 #define IND (VIA_XYZW_BIT | VIA_RGBA_BIT | VIA_FOG_BIT | VIA_SPEC_BIT |\
 204              VIA_TEX0_BIT | VIA_TEX1_BIT | VIA_PTEX_BIT)
 205 #define TAG(x) x##_wgfspt0t1
 206 #include "via_dd_vbtmp.h"
 207
 208 static void init_setup_tab(void) {
 209
 210     init_wg();
 211     init_wgs();
 212     init_wgt0();
 213     init_wgt0t1();
 214     init_wgpt0();
 215     init_wgpt0t1();
 216     init_wgst0();
 217     init_wgst0t1();
 218     init_wgspt0();
 219     init_wgspt0t1();
 220     init_wgf();
 221     init_wgfs();
 222     init_wgft0();
 223     init_wgft0t1();
 224     init_wgfpt0();
 225     init_wgfpt0t1();
 226     init_wgfst0();
 227     init_wgfst0t1();
 228     init_wgfspt0();
 229     init_wgfspt0t1();
 230 }
 231
 232 void viaPrintSetupFlags(char *msg, GLuint flags) {
 233 #ifdef DEBUG
 234     if (VIA_DEBUG) fprintf(stderr, "%s(%x): %s%s%s%s%s%s\n",
 235             msg,
 236             (int)flags,
 237             (flags & VIA_XYZW_BIT)     ? " xyzw," : "",
 238             (flags & VIA_RGBA_BIT)     ? " rgba," : "",
 239             (flags & VIA_SPEC_BIT)     ? " spec," : "",
 240             (flags & VIA_FOG_BIT)      ? " fog," : "",
 241             (flags & VIA_TEX0_BIT)     ? " tex-0," : "",
 242             (flags & VIA_TEX1_BIT)     ? " tex-1," : "");
 243 #endif
 244 }
 245
 246 void viaCheckTexSizes(GLcontext *ctx) {
 247     TNLcontext *tnl = TNL_CONTEXT(ctx);
 248     viaContextPtr vmesa = VIA_CONTEXT(ctx);
 249 #ifdef DEBUG
 250     if (VIA_DEBUG) {
 251         fprintf(stderr, "%s - in\n", __FUNCTION__);
 252         fprintf(stderr, "setupIndex = %x\n", vmesa->setupIndex);
 253     }
 254 #endif
 255     if (!setup_tab[vmesa->setupIndex].check_tex_sizes(ctx)) {
 256         /* Invalidate stored verts
 257          */
 258         vmesa->setupNewInputs = ~0;
 259         vmesa->setupIndex |= VIA_PTEX_BIT;
 260
 261         if (!vmesa->Fallback &&
 262             !(ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED))) {
 263             tnl->Driver.Render.Interp = setup_tab[vmesa->setupIndex].interp;
 264             tnl->Driver.Render.CopyPV = setup_tab[vmesa->setupIndex].copyPv;
 265         }
 266     }
 267 #ifdef DEBUG
 268     if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);
 269 #endif
 270 }
 271
 272 void viaBuildVertices(GLcontext *ctx,
 273                       GLuint start,
 274                       GLuint count,
 275                       GLuint newinputs)
 276 {
 277     viaContextPtr vmesa = VIA_CONTEXT(ctx);
 278     GLubyte *v = ((GLubyte *)vmesa->verts + (start << vmesa->vertexStrideShift));
 279     GLuint stride = 1 << vmesa->vertexStrideShift;
 280 #ifdef DEBUG
 281     if (VIA_DEBUG) fprintf(stderr, "%s - in\n", __FUNCTION__);
 282 #endif
 283     newinputs |= vmesa->setupNewInputs;
 284     vmesa->setupNewInputs = 0;
 285     if (!newinputs)
 286         return;
 287     if (newinputs & VERT_BIT_CLIP) {
 288         setup_tab[vmesa->setupIndex].emit(ctx, start, count, v, stride);
 289     }
 290     else {
 291         GLuint ind = 0;
 292
 293         if (newinputs & VERT_BIT_COLOR0)
 294             ind |= VIA_RGBA_BIT;
 295
 296         if (newinputs & VERT_BIT_COLOR1)
 297             ind |= VIA_SPEC_BIT;
 298
 299         if (newinputs & VERT_BIT_TEX0)
 300             ind |= VIA_TEX0_BIT;
 301
 302         if (newinputs & VERT_BIT_TEX1)
 303             ind |= VIA_TEX1_BIT;
 304
 305         if (newinputs & VERT_BIT_FOG)
 306             ind |= VIA_FOG_BIT;
 307
 308         if (vmesa->setupIndex & VIA_PTEX_BIT)
 309             ind = ~0;
 310
 311         ind &= vmesa->setupIndex;
 312         ind |= VIA_XYZW_BIT;
 313
 314         if (ind) {
 315             setup_tab[ind].emit(ctx, start, count, v, stride);
 316         }
 317     }
 318 #ifdef DEBUG
 319     if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);
 320 #endif
 321 }
 322
 323 void viaChooseVertexState(GLcontext *ctx) {
 324     TNLcontext *tnl = TNL_CONTEXT(ctx);
 325     viaContextPtr vmesa = VIA_CONTEXT(ctx);
 326     GLuint ind = VIA_XYZW_BIT | VIA_RGBA_BIT;
 327 #ifdef DEBUG
 328     if (VIA_DEBUG) fprintf(stderr, "%s - in\n", __FUNCTION__);
 329 #endif
 330     if (ctx->_TriangleCaps & DD_SEPARATE_SPECULAR)
 331         ind |= VIA_SPEC_BIT;
 332
 333     if (ctx->Fog.Enabled)
 334         ind |= VIA_FOG_BIT;
 335
 336     if (ctx->Texture._EnabledUnits > 1)
 337         ind |= VIA_TEX1_BIT | VIA_TEX0_BIT;
 338     else if (ctx->Texture._EnabledUnits == 1)
 339         ind |= VIA_TEX0_BIT;
 340
 341     vmesa->setupIndex = ind;
 342 #ifdef DEBUG
 343     if (VIA_DEBUG) fprintf(stderr, "setupIndex = %x\n", vmesa->setupIndex);
 344 #endif
 345
 346     if (ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED)) {
 347         tnl->Driver.Render.Interp = via_interp_extras;
 348         tnl->Driver.Render.CopyPV = via_copy_pv_extras;
 349     }
 350     else {
 351         tnl->Driver.Render.Interp = setup_tab[ind].interp;
 352         tnl->Driver.Render.CopyPV = setup_tab[ind].copyPv;
 353     }
 354
 355         vmesa->vertexSize = setup_tab[ind].vertexSize;
 356         vmesa->vertexStrideShift = setup_tab[ind].vertexStrideShift;
 357 #ifdef DEBUG
 358     if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);
 359 #endif
 360
 361 }
 362
 363 void via_emit_contiguous_verts(GLcontext *ctx,
 364                                GLuint start,
 365                                GLuint count) {
 366     viaContextPtr vmesa = VIA_CONTEXT(ctx);
 367     GLuint vertexSize = vmesa->vertexSize * 4;
 368     GLuint *dest = viaCheckDma(vmesa, (count - start) * vertexSize);
 369 #ifdef DEBUG
 370     if (VIA_DEBUG) fprintf(stderr, "%s - in\n", __FUNCTION__);
 371
 372     if (VIA_DEBUG) fprintf(stderr, "choose setup_tab[0x%x]\n", vmesa->setupIndex);
 373 #endif
 374     setup_tab[vmesa->setupIndex].emit(ctx, start, count, dest, vertexSize);
 375     vmesa->dmaLow += (count - start) * vertexSize;
 376 #ifdef DEBUG
 377     if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);
 378 #endif
 379 }
 380
 381 void viaInitVB(GLcontext *ctx) {
 382     viaContextPtr vmesa = VIA_CONTEXT(ctx);
 383     GLuint size = TNL_CONTEXT(ctx)->vb.Size;
 384
 385     vmesa->verts = ALIGN_MALLOC(size * 4 * 16, 32);
 386
 387     {
 388         static int firsttime = 1;
 389         if (firsttime) {
 390             init_setup_tab();
 391             firsttime = 0;
 392         }
 393     }
 394 }
 395
 396 void viaFreeVB(GLcontext *ctx) {
 397     viaContextPtr vmesa = VIA_CONTEXT(ctx);
 398
 399     if (vmesa->verts) {
 400         ALIGN_FREE(vmesa->verts);
 401         vmesa->verts = 0;
 402     }
 403
 404     if (vmesa->UbyteSecondaryColor.Ptr) {
 405         ALIGN_FREE((void*)vmesa->UbyteSecondaryColor.Ptr);
 406         vmesa->UbyteSecondaryColor.Ptr = 0;
 407     }
 408
 409     if (vmesa->UbyteColor.Ptr) {
 410         ALIGN_FREE((void*)vmesa->UbyteColor.Ptr);
 411         vmesa->UbyteColor.Ptr = 0;
 412     }
 413 }