src/mesa/pipe/softpipe/sp_quad.c

   1
   2
   3 #include "sp_context.h"
   4
   5
   6
   7 void
   8 sp_build_quad_pipeline(struct softpipe_context *sp)
   9 {
  10    /* build up the pipeline in reverse order... */
  11
  12    sp->quad.first = sp->quad.output;
  13
  14    if (sp->blend.colormask != 0xf) {
  15       sp->quad.colormask->next = sp->quad.first;
  16       sp->quad.first = sp->quad.colormask;
  17    }
  18
  19    if (sp->blend.blend_enable) {
  20       sp->quad.blend->next = sp->quad.first;
  21       sp->quad.first = sp->quad.blend;
  22    }
  23
  24    if (sp->framebuffer.num_cbufs == 1) {
  25       /* the usual case: write to exactly one colorbuf */
  26       sp->cbuf = sp->framebuffer.cbufs[0];
  27    }
  28    else {
  29       /* insert bufloop stage */
  30       sp->quad.bufloop->next = sp->quad.first;
  31       sp->quad.first = sp->quad.bufloop;
  32    }
  33
  34    if (sp->depth_test.occlusion_count) {
  35       sp->quad.occlusion->next = sp->quad.first;
  36       sp->quad.first = sp->quad.occlusion;
  37    }
  38
  39    if (sp->setup.poly_smooth ||
  40        sp->setup.line_smooth ||
  41        sp->setup.point_smooth) {
  42       sp->quad.coverage->next = sp->quad.first;
  43       sp->quad.first = sp->quad.coverage;
  44    }
  45
  46    if (   sp->stencil.front_enabled
  47        || sp->stencil.front_enabled) {
  48       sp->quad.stencil_test->next = sp->quad.first;
  49       sp->quad.first = sp->quad.stencil_test;
  50    }
  51    else if (sp->depth_test.enabled) {
  52       sp->quad.depth_test->next = sp->quad.first;
  53       sp->quad.first = sp->quad.depth_test;
  54    }
  55
  56    if (sp->alpha_test.enabled) {
  57       sp->quad.alpha_test->next = sp->quad.first;
  58       sp->quad.first = sp->quad.alpha_test;
  59    }
  60
  61    /* XXX always enable shader? */
  62    if (1) {
  63       sp->quad.shade->next = sp->quad.first;
  64       sp->quad.first = sp->quad.shade;
  65    }
  66
  67    if (sp->setup.poly_stipple_enable) {
  68       sp->quad.polygon_stipple->next = sp->quad.first;
  69       sp->quad.first = sp->quad.polygon_stipple;
  70    }
  71 }