src/mesa/drivers/dri/ffb/ffb_vbtmp.h

   1
   2 static void TAG(emit)(GLcontext *ctx, GLuint start, GLuint end)
   3 {
   4         ffbContextPtr fmesa = FFB_CONTEXT(ctx);
   5 #if defined(VB_DEBUG) || (IND & (FFB_VB_XYZ_BIT | FFB_VB_RGBA_BIT))
   6         struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
   7 #endif
   8 #if (IND & (FFB_VB_RGBA_BIT))
   9         GLfloat (*col0)[4];
  10         GLuint col0_stride;
  11 #if (IND & (FFB_VB_TWOSIDE_BIT))
  12         GLfloat (*col1)[4];
  13         GLuint col1_stride;
  14 #endif
  15 #endif
  16 #if (IND & FFB_VB_XYZ_BIT)
  17         GLfloat (*proj)[4] = VB->NdcPtr->data;
  18         GLuint proj_stride = VB->NdcPtr->stride;
  19         const GLubyte *mask = VB->ClipMask;
  20 #endif
  21         ffb_vertex *v = &fmesa->verts[start];
  22         int i;
  23
  24 #ifdef VB_DEBUG
  25         fprintf(stderr, "FFB: ffb_emit ["
  26 #if (IND & (FFB_VB_XYZ_BIT))
  27                 " XYZ"
  28 #endif
  29 #if (IND & (FFB_VB_RGBA_BIT))
  30                 " RGBA"
  31 #endif
  32 #if (IND & (FFB_VB_TWOSIDE_BIT))
  33                 " TWOSIDE"
  34 #endif
  35                 "] start(%d) end(%d) import(%d)\n",
  36                 start, end,
  37                 VB->importable_data);
  38 #endif
  39
  40 #if (IND & (FFB_VB_RGBA_BIT))
  41         col0 = VB->ColorPtr[0]->data;
  42         col0_stride = VB->ColorPtr[0]->stride;
  43 #if (IND & (FFB_VB_TWOSIDE_BIT))
  44         col1 = VB->ColorPtr[1]->data;
  45         col1_stride = VB->ColorPtr[1]->stride;
  46 #endif
  47 #endif
  48
  49         {
  50                 if (start) {
  51 #if (IND & (FFB_VB_XYZ_BIT))
  52                         proj = (GLfloat (*)[4])((GLubyte *)proj + start * proj_stride);
  53 #endif
  54 #if (IND & (FFB_VB_RGBA_BIT))
  55                         col0 = (GLfloat (*)[4])((GLubyte *)col0 + start * col0_stride);
  56 #if (IND & (FFB_VB_TWOSIDE_BIT))
  57                         col1 = (GLfloat (*)[4])((GLubyte *)col1 + start * col1_stride);
  58 #endif
  59 #endif
  60                 }
  61                 for (i = start; i < end; i++, v++) {
  62 #if (IND & (FFB_VB_XYZ_BIT))
  63                         if (mask[i] == 0) {
  64                                 v->x = proj[0][0];
  65                                 v->y = proj[0][1];
  66                                 v->z = proj[0][2];
  67                         }
  68                         proj = (GLfloat (*)[4])((GLubyte *)proj + proj_stride);
  69 #endif
  70 #if (IND & (FFB_VB_RGBA_BIT))
  71                         v->color[0].alpha = CLAMP(col0[0][3], 0.0f, 1.0f);
  72                         v->color[0].red   = CLAMP(col0[0][0], 0.0f, 1.0f);
  73                         v->color[0].green = CLAMP(col0[0][1], 0.0f, 1.0f);
  74                         v->color[0].blue  = CLAMP(col0[0][2], 0.0f, 1.0f);
  75                         col0 = (GLfloat (*)[4])((GLubyte *)col0 + col0_stride);
  76 #if (IND & (FFB_VB_TWOSIDE_BIT))
  77                         v->color[1].alpha = CLAMP(col1[0][3], 0.0f, 1.0f);
  78                         v->color[1].red   = CLAMP(col1[0][0], 0.0f, 1.0f);
  79                         v->color[1].green = CLAMP(col1[0][1], 0.0f, 1.0f);
  80                         v->color[1].blue  = CLAMP(col1[0][2], 0.0f, 1.0f);
  81                         col1 = (GLfloat (*)[4])((GLubyte *)col1 + col1_stride);
  82 #endif
  83 #endif
  84                 }
  85         }
  86 }
  87
  88 static void TAG(interp)(GLcontext *ctx, GLfloat t,
  89                         GLuint edst, GLuint eout, GLuint ein,
  90                         GLboolean force_boundary)
  91 {
  92 #if (IND & (FFB_VB_XYZ_BIT | FFB_VB_RGBA_BIT))
  93         ffbContextPtr fmesa = FFB_CONTEXT(ctx);
  94 #endif
  95 #if (IND & (FFB_VB_XYZ_BIT))
  96         struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
  97         const GLfloat *dstclip = VB->ClipPtr->data[edst];
  98         GLfloat oow = 1.0 / dstclip[3];
  99 #endif
 100 #if (IND & (FFB_VB_XYZ_BIT | FFB_VB_RGBA_BIT))
 101         ffb_vertex *dst = &fmesa->verts[edst];
 102 #endif
 103 #if (IND & (FFB_VB_RGBA_BIT))
 104         ffb_vertex *in = &fmesa->verts[eout];
 105         ffb_vertex *out = &fmesa->verts[ein];
 106 #endif
 107
 108 #ifdef VB_DEBUG
 109         fprintf(stderr, "FFB: ffb_interp ["
 110 #if (IND & (FFB_VB_XYZ_BIT))
 111                 " XYZ"
 112 #endif
 113 #if (IND & (FFB_VB_RGBA_BIT))
 114                 " RGBA"
 115 #endif
 116 #if (IND & (FFB_VB_TWOSIDE_BIT))
 117                 " TWOSIDE"
 118 #endif
 119                 "] edst(%d) eout(%d) ein(%d)\n",
 120                 edst, eout, ein);
 121 #endif
 122
 123 #if (IND & (FFB_VB_XYZ_BIT))
 124         dst->x = dstclip[0] * oow;
 125         dst->y = dstclip[1] * oow;
 126         dst->z = dstclip[2] * oow;
 127 #endif
 128
 129 #if (IND & (FFB_VB_RGBA_BIT))
 130         INTERP_F(t, dst->color[0].alpha, out->color[0].alpha, in->color[0].alpha);
 131         INTERP_F(t, dst->color[0].red,   out->color[0].red,   in->color[0].red);
 132         INTERP_F(t, dst->color[0].green, out->color[0].green, in->color[0].green);
 133         INTERP_F(t, dst->color[0].blue,  out->color[0].blue,  in->color[0].blue);
 134 #if (IND & (FFB_VB_TWOSIDE_BIT))
 135         INTERP_F(t, dst->color[1].alpha, out->color[1].alpha, in->color[1].alpha);
 136         INTERP_F(t, dst->color[1].red,   out->color[1].red,   in->color[1].red);
 137         INTERP_F(t, dst->color[1].green, out->color[1].green, in->color[1].green);
 138         INTERP_F(t, dst->color[1].blue,  out->color[1].blue,  in->color[1].blue);
 139 #endif
 140 #endif
 141 }
 142
 143 static void TAG(init)(void)
 144 {
 145         setup_tab[IND].emit = TAG(emit);
 146         setup_tab[IND].interp = TAG(interp);
 147 }
 148
 149 #undef IND
 150 #undef TAG