src/mesa/drivers/dri/radeon/radeon_maos_vbtmp.h

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  4.1
   4  *
   5  * Copyright (C) 1999-2002  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  * Authors:
  25  *    Keith Whitwell <keith@tungstengraphics.com>
  26  */
  27
  28 #ifndef LOCALVARS
  29 #define LOCALVARS
  30 #endif
  31
  32 #undef TCL_DEBUG
  33 #ifndef TCL_DEBUG
  34 #define TCL_DEBUG 0
  35 #endif
  36
  37 static void TAG(emit)( GLcontext *ctx,
  38                        GLuint start, GLuint end,
  39                        void *dest )
  40 {
  41    LOCALVARS
  42       struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
  43    GLuint (*tc0)[4], (*tc1)[4], (*tc2)[4];
  44    GLfloat (*col)[4], (*spec)[4];
  45    GLfloat (*fog)[4];
  46    GLuint (*norm)[4];
  47    GLuint tc0_stride, tc1_stride, col_stride, spec_stride, fog_stride;
  48    GLuint tc2_stride, norm_stride;
  49    GLuint fill_tex = 0;
  50    GLuint rqcoordsnoswap = 0;
  51    GLuint (*coord)[4];
  52    GLuint coord_stride; /* object coordinates */
  53    int i;
  54
  55    union emit_union *v = (union emit_union *)dest;
  56
  57    if (RADEON_DEBUG & DEBUG_VERTS)
  58       fprintf(stderr, "%s\n", __FUNCTION__);
  59
  60    coord = (GLuint (*)[4])VB->ObjPtr->data;
  61    coord_stride = VB->ObjPtr->stride;
  62
  63    if (DO_TEX2) {
  64       if (VB->TexCoordPtr[2]) {
  65          const GLuint t2 = GET_TEXSOURCE(2);
  66          tc2 = (GLuint (*)[4])VB->TexCoordPtr[t2]->data;
  67          tc2_stride = VB->TexCoordPtr[t2]->stride;
  68          if (DO_PTEX && VB->TexCoordPtr[t2]->size < 3) {
  69             fill_tex |= (1<<2);
  70          }
  71          else if (DO_PTEX && VB->TexCoordPtr[t2]->size < 4) {
  72             rqcoordsnoswap |= (1<<2);
  73          }
  74       } else {
  75          tc2 = (GLuint (*)[4])&ctx->Current.Attrib[VERT_ATTRIB_TEX2];
  76          tc2_stride = 0;
  77       }
  78    }
  79
  80    if (DO_TEX1) {
  81       if (VB->TexCoordPtr[1]) {
  82          const GLuint t1 = GET_TEXSOURCE(1);
  83          tc1 = (GLuint (*)[4])VB->TexCoordPtr[t1]->data;
  84          tc1_stride = VB->TexCoordPtr[t1]->stride;
  85          if (DO_PTEX && VB->TexCoordPtr[t1]->size < 3) {
  86             fill_tex |= (1<<1);
  87          }
  88          else if (DO_PTEX && VB->TexCoordPtr[t1]->size < 4) {
  89             rqcoordsnoswap |= (1<<1);
  90          }
  91       } else {
  92          tc1 = (GLuint (*)[4])&ctx->Current.Attrib[VERT_ATTRIB_TEX1];
  93          tc1_stride = 0;
  94       }
  95    }
  96
  97    if (DO_TEX0) {
  98       if (VB->TexCoordPtr[0]) {
  99          const GLuint t0 = GET_TEXSOURCE(0);
 100          tc0_stride = VB->TexCoordPtr[t0]->stride;
 101          tc0 = (GLuint (*)[4])VB->TexCoordPtr[t0]->data;
 102          if (DO_PTEX && VB->TexCoordPtr[t0]->size < 3) {
 103             fill_tex |= (1<<0);
 104          }
 105          else if (DO_PTEX && VB->TexCoordPtr[t0]->size < 4) {
 106             rqcoordsnoswap |= (1<<0);
 107          }
 108       } else {
 109          tc0 = (GLuint (*)[4])&ctx->Current.Attrib[VERT_ATTRIB_TEX0];
 110          tc0_stride = 0;
 111       }
 112
 113    }
 114
 115    if (DO_NORM) {
 116       if (VB->NormalPtr) {
 117          norm_stride = VB->NormalPtr->stride;
 118          norm = (GLuint (*)[4])VB->NormalPtr->data;
 119       } else {
 120          norm_stride = 0;
 121          norm = (GLuint (*)[4])&ctx->Current.Attrib[VERT_ATTRIB_NORMAL];
 122       }
 123    }
 124
 125    if (DO_RGBA) {
 126       if (VB->ColorPtr[0]) {
 127          col = VB->ColorPtr[0]->data;
 128          col_stride = VB->ColorPtr[0]->stride;
 129       } else {
 130          col = (GLfloat (*)[4])ctx->Current.Attrib[VERT_ATTRIB_COLOR0];
 131          col_stride = 0;
 132       }
 133    }
 134
 135    if (DO_SPEC_OR_FOG) {
 136       if (VB->SecondaryColorPtr[0]) {
 137          spec = VB->SecondaryColorPtr[0]->data;
 138          spec_stride = VB->SecondaryColorPtr[0]->stride;
 139       } else {
 140          spec = (GLfloat (*)[4])ctx->Current.Attrib[VERT_ATTRIB_COLOR1];
 141          spec_stride = 0;
 142       }
 143    }
 144
 145    if (DO_SPEC_OR_FOG) {
 146       if (VB->FogCoordPtr) {
 147          fog = VB->FogCoordPtr->data;
 148          fog_stride = VB->FogCoordPtr->stride;
 149       } else {
 150          fog = (GLfloat (*)[4])ctx->Current.Attrib[VERT_ATTRIB_FOG];
 151          fog_stride = 0;
 152       }
 153    }
 154
 155
 156    if (start) {
 157       coord =  (GLuint (*)[4])((GLubyte *)coord + start * coord_stride);
 158       if (DO_TEX0)
 159          tc0 =  (GLuint (*)[4])((GLubyte *)tc0 + start * tc0_stride);
 160       if (DO_TEX1)
 161          tc1 =  (GLuint (*)[4])((GLubyte *)tc1 + start * tc1_stride);
 162       if (DO_TEX2)
 163          tc2 =  (GLuint (*)[4])((GLubyte *)tc2 + start * tc2_stride);
 164       if (DO_NORM)
 165          norm =  (GLuint (*)[4])((GLubyte *)norm + start * norm_stride);
 166       if (DO_RGBA)
 167          STRIDE_4F(col, start * col_stride);
 168       if (DO_SPEC)
 169          STRIDE_4F(spec, start * spec_stride);
 170       if (DO_FOG)
 171          STRIDE_4F(fog, start * fog_stride);
 172    }
 173
 174
 175    {
 176       for (i=start; i < end; i++) {
 177
 178          v[0].ui = coord[0][0];
 179          v[1].ui = coord[0][1];
 180          v[2].ui = coord[0][2];
 181          if (DO_W) {
 182             v[3].ui = coord[0][3];
 183             v += 4;
 184          }
 185          else
 186             v += 3;
 187          coord =  (GLuint (*)[4])((GLubyte *)coord +  coord_stride);
 188
 189          if (DO_NORM) {
 190             v[0].ui = norm[0][0];
 191             v[1].ui = norm[0][1];
 192             v[2].ui = norm[0][2];
 193             v += 3;
 194             norm =  (GLuint (*)[4])((GLubyte *)norm +  norm_stride);
 195          }
 196          if (DO_RGBA) {
 197             UNCLAMPED_FLOAT_TO_UBYTE(v[0].rgba.red, col[0][0]);
 198             UNCLAMPED_FLOAT_TO_UBYTE(v[0].rgba.green, col[0][1]);
 199             UNCLAMPED_FLOAT_TO_UBYTE(v[0].rgba.blue, col[0][2]);
 200             UNCLAMPED_FLOAT_TO_UBYTE(v[0].rgba.alpha, col[0][3]);
 201             STRIDE_4F(col, col_stride);
 202             v++;
 203          }
 204          if (DO_SPEC_OR_FOG) {
 205             if (DO_SPEC) {
 206                UNCLAMPED_FLOAT_TO_UBYTE(v[0].rgba.red, spec[0][0]);
 207                UNCLAMPED_FLOAT_TO_UBYTE(v[0].rgba.green, spec[0][1]);
 208                UNCLAMPED_FLOAT_TO_UBYTE(v[0].rgba.blue, spec[0][2]);
 209                STRIDE_4F(spec, spec_stride);
 210             }
 211             if (DO_FOG) {
 212                UNCLAMPED_FLOAT_TO_UBYTE(v[0].rgba.alpha, radeonComputeFogBlendFactor(ctx, fog[0][0]));
 213                STRIDE_4F(fog, fog_stride);
 214             }
 215             if (TCL_DEBUG) fprintf(stderr, "%x ", v[0].ui);
 216             v++;
 217          }
 218          if (DO_TEX0) {
 219             v[0].ui = tc0[0][0];
 220             v[1].ui = tc0[0][1];
 221             if (TCL_DEBUG) fprintf(stderr, "t0: %.2f %.2f ", v[0].f, v[1].f);
 222             if (DO_PTEX) {
 223                if (fill_tex & (1<<0))
 224                   v[2].f = 1.0;
 225                else if (rqcoordsnoswap & (1<<0))
 226                   v[2].ui = tc0[0][2];
 227                else
 228                   v[2].ui = tc0[0][3];
 229                if (TCL_DEBUG) fprintf(stderr, "%.2f ", v[2].f);
 230                v += 3;
 231             }
 232             else
 233                v += 2;
 234             tc0 =  (GLuint (*)[4])((GLubyte *)tc0 +  tc0_stride);
 235          }
 236          if (DO_TEX1) {
 237             v[0].ui = tc1[0][0];
 238             v[1].ui = tc1[0][1];
 239             if (TCL_DEBUG) fprintf(stderr, "t1: %.2f %.2f ", v[0].f, v[1].f);
 240             if (DO_PTEX) {
 241                if (fill_tex & (1<<1))
 242                   v[2].f = 1.0;
 243                else if (rqcoordsnoswap & (1<<1))
 244                   v[2].ui = tc1[0][2];
 245                else
 246                   v[2].ui = tc1[0][3];
 247                if (TCL_DEBUG) fprintf(stderr, "%.2f ", v[2].f);
 248                v += 3;
 249             }
 250             else
 251                v += 2;
 252             tc1 =  (GLuint (*)[4])((GLubyte *)tc1 +  tc1_stride);
 253          }
 254          if (DO_TEX2) {
 255             v[0].ui = tc2[0][0];
 256             v[1].ui = tc2[0][1];
 257             if (TCL_DEBUG) fprintf(stderr, "t2: %.2f %.2f ", v[0].f, v[1].f);
 258             if (DO_PTEX) {
 259                if (fill_tex & (1<<2))
 260                   v[2].f = 1.0;
 261                else if (rqcoordsnoswap & (1<<2))
 262                   v[2].ui = tc2[0][2];
 263                else
 264                   v[2].ui = tc2[0][3];
 265                if (TCL_DEBUG) fprintf(stderr, "%.2f ", v[2].f);
 266                v += 3;
 267             }
 268             else
 269                v += 2;
 270             tc2 =  (GLuint (*)[4])((GLubyte *)tc2 +  tc2_stride);
 271          }
 272          if (TCL_DEBUG) fprintf(stderr, "\n");
 273       }
 274    }
 275 }
 276
 277
 278
 279 static void TAG(init)( void )
 280 {
 281    int sz = 3;
 282    if (DO_W) sz++;
 283    if (DO_NORM) sz += 3;
 284    if (DO_RGBA) sz++;
 285    if (DO_SPEC_OR_FOG) sz++;
 286    if (DO_TEX0) sz += 2;
 287    if (DO_TEX0 && DO_PTEX) sz++;
 288    if (DO_TEX1) sz += 2;
 289    if (DO_TEX1 && DO_PTEX) sz++;
 290    if (DO_TEX2) sz += 2;
 291    if (DO_TEX2 && DO_PTEX) sz++;
 292
 293    setup_tab[IDX].emit = TAG(emit);
 294    setup_tab[IDX].vertex_format = IND;
 295    setup_tab[IDX].vertex_size = sz;
 296 }
 297
 298
 299 #undef IND
 300 #undef TAG
 301 #undef IDX