C++ (Cpp) _TNL_ATTRIB_GENERIC示例

示例#1

/**
 * Tell the tnl module how to build SWvertex objects for swrast.
 * We'll build the map[] array with that info and pass it to
 * _tnl_install_attrs().
 */
static void
setup_vertex_format(struct gl_context *ctx)
{
   TNLcontext *tnl = TNL_CONTEXT(ctx);
   SScontext *swsetup = SWSETUP_CONTEXT(ctx);
   GLboolean intColors = !ctx->FragmentProgram._Current
                      && !ctx->ATIFragmentShader._Enabled
                      && ctx->RenderMode == GL_RENDER
                      && CHAN_TYPE != GL_FLOAT;

   if (intColors != swsetup->intColors ||
       tnl->render_inputs_bitset != swsetup->last_index_bitset) {
      GLbitfield64 index_bitset = tnl->render_inputs_bitset;
      struct tnl_attr_map map[_TNL_ATTRIB_MAX];
      unsigned int i, e = 0;

      swsetup->intColors = intColors;

      EMIT_ATTR( _TNL_ATTRIB_POS, EMIT_4F_VIEWPORT, attrib[VARYING_SLOT_POS] );

      if (index_bitset & BITFIELD64_BIT(_TNL_ATTRIB_COLOR0)) {
         if (swsetup->intColors)
            EMIT_ATTR( _TNL_ATTRIB_COLOR0, EMIT_4CHAN_4F_RGBA, color );
         else
            EMIT_ATTR( _TNL_ATTRIB_COLOR0, EMIT_4F, attrib[VARYING_SLOT_COL0]);
      }

      if (index_bitset & BITFIELD64_BIT(_TNL_ATTRIB_COLOR1)) {
         EMIT_ATTR( _TNL_ATTRIB_COLOR1, EMIT_4F, attrib[VARYING_SLOT_COL1]);
      }

      if (index_bitset & BITFIELD64_BIT(_TNL_ATTRIB_FOG)) {
         const GLint emit = ctx->FragmentProgram._Current ? EMIT_4F : EMIT_1F;
         EMIT_ATTR( _TNL_ATTRIB_FOG, emit, attrib[VARYING_SLOT_FOGC]);
      }

      if (index_bitset & BITFIELD64_RANGE(_TNL_ATTRIB_TEX0, _TNL_NUM_TEX))
      {
         for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) {
            if (index_bitset & BITFIELD64_BIT(_TNL_ATTRIB_TEX(i))) {
               EMIT_ATTR( _TNL_ATTRIB_TEX(i), EMIT_4F,
                          attrib[VARYING_SLOT_TEX0 + i] );
            }
         }
      }

      /* shader varying vars */
      if (index_bitset & BITFIELD64_RANGE(_TNL_ATTRIB_GENERIC0, _TNL_NUM_GENERIC)) {
         for (i = 0; i < ctx->Const.MaxVarying; i++) {
            if (index_bitset & BITFIELD64_BIT(_TNL_ATTRIB_GENERIC(i))) {
               EMIT_ATTR( _TNL_ATTRIB_GENERIC(i), VARYING_EMIT_STYLE,
                          attrib[VARYING_SLOT_VAR0 + i] );
            }
         }
      }

      if (index_bitset & BITFIELD64_BIT(_TNL_ATTRIB_POINTSIZE))
         EMIT_ATTR( _TNL_ATTRIB_POINTSIZE, EMIT_1F, pointSize );

      _tnl_install_attrs( ctx, map, e,
                          ctx->Viewport._WindowMap.m,
                          sizeof(SWvertex) );

      swsetup->last_index_bitset = index_bitset;
   }
}

示例#2

void
_tnl_InvalidateState( GLcontext *ctx, GLuint new_state )
{
   TNLcontext *tnl = TNL_CONTEXT(ctx);
   const struct gl_vertex_program *vp = ctx->VertexProgram._Current;
   const struct gl_fragment_program *fp = ctx->FragmentProgram._Current;

   if (new_state & (_NEW_HINT | _NEW_PROGRAM)) {
      ASSERT(tnl->AllowVertexFog || tnl->AllowPixelFog);
      tnl->_DoVertexFog = ((tnl->AllowVertexFog && (ctx->Hint.Fog != GL_NICEST))
         || !tnl->AllowPixelFog) && !fp;
   }

   tnl->pipeline.new_state |= new_state;

   /* Calculate tnl->render_inputs.  This bitmask indicates which vertex
    * attributes need to be emitted to the rasterizer.
    */
   if (ctx->Visual.rgbMode) {
      GLuint i;

      RENDERINPUTS_ZERO( tnl->render_inputs_bitset );
      RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_POS );

      if (!fp || (fp->Base.InputsRead & FRAG_BIT_COL0)) {
         RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_COLOR0 );
      }

      if (NEED_SECONDARY_COLOR(ctx))
         RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_COLOR1 );

      for (i = 0; i < ctx->Const.MaxTextureCoordUnits; i++) {
         if (ctx->Texture._EnabledCoordUnits & (1 << i) ||
             (fp && fp->Base.InputsRead & FRAG_BIT_TEX(i))) {
            RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_TEX(i) );
         }
      }
   }
   else {
      RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_POS );
      RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_COLOR_INDEX );
   }

   if (ctx->Fog.Enabled) {
      /* fixed-function fog */
      RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_FOG );
   }
   else if (fp) {
      if (fp->FogOption != GL_NONE || (fp->Base.InputsRead & FRAG_BIT_FOGC)) {
         /* fragment program needs fog coord */
         RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_FOG );
      }
   }

   if (ctx->Polygon.FrontMode != GL_FILL || 
       ctx->Polygon.BackMode != GL_FILL)
      RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_EDGEFLAG );

   if (ctx->RenderMode == GL_FEEDBACK)
      RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_TEX0 );

   if (ctx->Point._Attenuated ||
       (ctx->VertexProgram._Enabled && ctx->VertexProgram.PointSizeEnabled))
      RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_POINTSIZE );

   /* check for varying vars which are written by the vertex program */
   if (vp) {
      GLuint i;
      for (i = 0; i < MAX_VARYING; i++) {
	 if (vp->Base.OutputsWritten & BITFIELD64_BIT(VERT_RESULT_VAR0 + i)) {
            RENDERINPUTS_SET(tnl->render_inputs_bitset,
                             _TNL_ATTRIB_GENERIC(i));
         }
      }
   }
}