src/mesa/state_tracker/st_atom_vs.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27  /*
  28   * Authors:
  29   *   Keith Whitwell <keith@tungstengraphics.com>
  30   *   Brian Paul
  31   */
  32
  33 #include "shader/prog_parameter.h"
  34 #include "shader/prog_print.h"
  35 #include "tnl/t_vp_build.h"
  36
  37 #include "pipe/p_context.h"
  38 #include "pipe/p_defines.h"
  39 #include "pipe/p_winsys.h"
  40 #include "pipe/tgsi/mesa/mesa_to_tgsi.h"
  41 #include "pipe/tgsi/exec/tgsi_core.h"
  42
  43 #include "st_context.h"
  44 #include "st_cache.h"
  45 #include "st_atom.h"
  46 #include "st_program.h"
  47
  48
  49 #define TGSI_DEBUG 1
  50
  51
  52 /**
  53  * Translate a Mesa vertex shader into a TGSI shader.
  54  * \return  pointer to cached pipe_shader object.
  55  */
  56 const struct cso_vertex_shader *
  57 st_translate_vertex_shader(struct st_context *st,
  58                            struct st_vertex_program *stvp)
  59 {
  60    struct pipe_shader_state vs;
  61    const struct cso_vertex_shader *cso;
  62    GLuint i;
  63
  64    memset(&vs, 0, sizeof(vs));
  65
  66    /*
  67     * Determine number of inputs, the mappings between VERT_ATTRIB_x
  68     * and TGSI generic input indexes, plus input attrib semantic info.
  69     */
  70    for (i = 0; i < MAX_VERTEX_PROGRAM_ATTRIBS; i++) {
  71       if (stvp->Base.Base.InputsRead & (1 << i)) {
  72          stvp->input_to_index[i] = vs.num_inputs;
  73          stvp->index_to_input[vs.num_inputs] = i;
  74          switch (i) {
  75          case VERT_ATTRIB_POS:
  76             vs.input_semantic_name[vs.num_inputs] = TGSI_SEMANTIC_POSITION;
  77             vs.input_semantic_index[vs.num_inputs] = 0;
  78             break;
  79          case VERT_ATTRIB_WEIGHT:
  80             /* fall-through */
  81          case VERT_ATTRIB_NORMAL:
  82             /* just label as a generic */
  83             vs.input_semantic_name[vs.num_inputs] = TGSI_SEMANTIC_GENERIC;
  84             vs.input_semantic_index[vs.num_inputs] = 0;
  85             break;
  86          case VERT_ATTRIB_COLOR0:
  87             vs.input_semantic_name[vs.num_inputs] = TGSI_SEMANTIC_COLOR;
  88             vs.input_semantic_index[vs.num_inputs] = 0;
  89             break;
  90          case VERT_ATTRIB_COLOR1:
  91             vs.input_semantic_name[vs.num_inputs] = TGSI_SEMANTIC_COLOR;
  92             vs.input_semantic_index[vs.num_inputs] = 1;
  93             break;
  94          case VERT_ATTRIB_TEX0:
  95          case VERT_ATTRIB_TEX1:
  96          case VERT_ATTRIB_TEX2:
  97          case VERT_ATTRIB_TEX3:
  98          case VERT_ATTRIB_TEX4:
  99          case VERT_ATTRIB_TEX5:
 100          case VERT_ATTRIB_TEX6:
 101          case VERT_ATTRIB_TEX7:
 102             vs.input_semantic_name[vs.num_inputs] = TGSI_SEMANTIC_TEXCOORD;
 103             vs.input_semantic_index[vs.num_inputs] = i - VERT_ATTRIB_TEX0;
 104             break;
 105          case VERT_ATTRIB_GENERIC0:
 106          case VERT_ATTRIB_GENERIC1:
 107          case VERT_ATTRIB_GENERIC2:
 108          case VERT_ATTRIB_GENERIC3:
 109          case VERT_ATTRIB_GENERIC4:
 110          case VERT_ATTRIB_GENERIC5:
 111          case VERT_ATTRIB_GENERIC6:
 112          case VERT_ATTRIB_GENERIC7:
 113             assert(i < VERT_ATTRIB_MAX);
 114             vs.input_semantic_name[vs.num_inputs] = TGSI_SEMANTIC_GENERIC;
 115             vs.input_semantic_index[vs.num_inputs] = i - VERT_ATTRIB_GENERIC0;
 116             break;
 117          default:
 118             assert(0);
 119          }
 120          vs.num_inputs++;
 121       }
 122    }
 123
 124    /*
 125     * Determine number of outputs, the register mapping and
 126     * the semantic information for each vertex output/result.
 127     */
 128    for (i = 0; i < VERT_RESULT_MAX; i++) {
 129       if (stvp->Base.Base.OutputsWritten & (1 << i)) {
 130          /* put this attrib in the next available slot */
 131          st->vertex_attrib_to_slot[i] = vs.num_outputs;
 132
 133          switch (i) {
 134          case VERT_RESULT_HPOS:
 135             vs.output_semantic_name[vs.num_outputs] = TGSI_SEMANTIC_POSITION;
 136             vs.output_semantic_index[vs.num_inputs] = 0;
 137             break;
 138          case VERT_RESULT_COL0:
 139             vs.output_semantic_name[vs.num_inputs] = TGSI_SEMANTIC_COLOR;
 140             vs.output_semantic_index[vs.num_inputs] = 0;
 141             break;
 142          case VERT_RESULT_COL1:
 143             vs.output_semantic_name[vs.num_inputs] = TGSI_SEMANTIC_COLOR;
 144             vs.output_semantic_index[vs.num_inputs] = 1;
 145             break;
 146          case VERT_RESULT_BFC0:
 147             vs.output_semantic_name[vs.num_inputs] = TGSI_SEMANTIC_BCOLOR;
 148             vs.output_semantic_index[vs.num_inputs] = 0;
 149             break;
 150          case VERT_RESULT_BFC1:
 151             vs.output_semantic_name[vs.num_inputs] = TGSI_SEMANTIC_BCOLOR;
 152             vs.output_semantic_index[vs.num_inputs] = 1;
 153             break;
 154          case VERT_RESULT_FOGC:
 155          case VERT_RESULT_PSIZ:
 156          case VERT_RESULT_EDGE:
 157             assert(0);
 158             break;
 159          case VERT_RESULT_TEX0:
 160          case VERT_RESULT_TEX1:
 161          case VERT_RESULT_TEX2:
 162          case VERT_RESULT_TEX3:
 163          case VERT_RESULT_TEX4:
 164          case VERT_RESULT_TEX5:
 165          case VERT_RESULT_TEX6:
 166          case VERT_RESULT_TEX7:
 167             vs.output_semantic_name[vs.num_inputs] = TGSI_SEMANTIC_TEXCOORD;
 168             vs.output_semantic_index[vs.num_inputs] = i - VERT_RESULT_TEX0;
 169             break;
 170          case VERT_RESULT_VAR0:
 171             /* fall-through */
 172          default:
 173             assert(i - VERT_RESULT_VAR0 < MAX_VARYING);
 174             vs.output_semantic_name[vs.num_inputs] = TGSI_SEMANTIC_GENERIC;
 175             vs.output_semantic_index[vs.num_inputs] = i - VERT_RESULT_VAR0;
 176          }
 177
 178          vs.num_outputs++;
 179       }
 180    }
 181
 182
 183    /* XXX: fix static allocation of tokens:
 184     */
 185    tgsi_mesa_compile_vp_program( &stvp->Base,
 186                                  vs.num_inputs,
 187                                  stvp->input_to_index,
 188                                  vs.input_semantic_name,
 189                                  vs.input_semantic_index,
 190                                  st->vertex_attrib_to_slot,
 191                                  stvp->tokens, ST_FP_MAX_TOKENS );
 192
 193    vs.tokens = &stvp->tokens[0];
 194
 195    cso = st_cached_vs_state(st, &vs);
 196    stvp->vs = cso;
 197
 198    if (TGSI_DEBUG)
 199       tgsi_dump( stvp->tokens, 0 );
 200
 201 #if defined(USE_X86_ASM) || defined(SLANG_X86)
 202    if (stvp->sse2_program.csr == stvp->sse2_program.store)
 203       tgsi_emit_sse2( stvp->tokens, &stvp->sse2_program );
 204
 205    if (!cso->state.executable)
 206       cso->state.executable = (void *) x86_get_func( &stvp->sse2_program );
 207 #endif
 208
 209    stvp->dirty = 0;
 210
 211    return cso;
 212 }
 213
 214
 215
 216 static void update_vs( struct st_context *st )
 217 {
 218    struct st_vertex_program *stvp;
 219
 220    /* find active shader and params -- Should be covered by
 221     * ST_NEW_VERTEX_PROGRAM
 222     */
 223    if (st->ctx->Shader.CurrentProgram &&
 224        st->ctx->Shader.CurrentProgram->LinkStatus &&
 225        st->ctx->Shader.CurrentProgram->VertexProgram) {
 226       struct gl_vertex_program *f
 227          = st->ctx->Shader.CurrentProgram->VertexProgram;
 228       stvp = st_vertex_program(f);
 229    }
 230    else {
 231       assert(st->ctx->VertexProgram._Current);
 232       stvp = st_vertex_program(st->ctx->VertexProgram._Current);
 233    }
 234
 235    if (st->vp != stvp || stvp->dirty) {
 236       if (stvp->dirty)
 237          (void) st_translate_vertex_shader( st, stvp );
 238
 239       /* Bind the vertex program and TGSI shader */
 240       st->vp = stvp;
 241       st->state.vs = stvp->vs;
 242
 243 #if 0
 244       printf("###### bind vp tokens: %p %p  num_inp=%u\n",
 245              stvp, stvp->tokens, stvp->vs->state.num_inputs);
 246       if (TGSI_DEBUG)
 247          tgsi_dump( stvp->tokens, 0 );
 248 #endif
 249       st->pipe->bind_vs_state(st->pipe, st->state.vs->data);
 250    }
 251 }
 252
 253
 254 const struct st_tracked_state st_update_vs = {
 255    .name = "st_update_vs",
 256    .dirty = {
 257       .mesa  = _NEW_PROGRAM,
 258       .st   = ST_NEW_VERTEX_PROGRAM,
 259    },
 260    .update = update_vs
 261 };
 262
 263
 264
 265