src/mesa/pipe/failover/fo_state_emit.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
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  16  * of the Software.
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  27
  28 /* Authors:  Keith Whitwell <keith@tungstengraphics.com>
  29  */
  30
  31 #include "fo_context.h"
  32
  33 /* This looks like a lot of work at the moment - we're keeping a
  34  * duplicate copy of the state up-to-date.
  35  *
  36  * This can change in two ways:
  37  * - With constant state objects we would only need to save a pointer,
  38  *     not the whole object.
  39  * - By adding a callback in the state tracker to re-emit state.  The
  40  *     state tracker knows the current state already and can re-emit it
  41  *     without additional complexity.
  42  *
  43  * This works as a proof-of-concept, but a final version will have
  44  * lower overheads.
  45  */
  46
  47
  48 /* Bring the software pipe uptodate with current state.
  49  *
  50  * With constant state objects we would probably just send all state
  51  * to both rasterizers all the time???
  52  */
  53 void
  54 failover_state_emit( struct failover_context *failover )
  55 {
  56    unsigned i;
  57
  58    if (failover->dirty & FO_NEW_ALPHA_TEST)
  59       failover->sw->set_alpha_test_state( failover->sw, &failover->alpha_test );
  60
  61    if (failover->dirty & FO_NEW_BLEND)
  62       failover->sw->bind_blend_state( failover->sw, failover->blend );
  63
  64    if (failover->dirty & FO_NEW_BLEND_COLOR)
  65       failover->sw->set_blend_color( failover->sw, &failover->blend_color );
  66
  67    if (failover->dirty & FO_NEW_CLIP)
  68       failover->sw->set_clip_state( failover->sw, &failover->clip );
  69
  70    if (failover->dirty & FO_NEW_CLEAR_COLOR)
  71       failover->sw->set_clear_color_state( failover->sw, &failover->clear_color );
  72
  73    if (failover->dirty & FO_NEW_DEPTH_STENCIL)
  74       failover->sw->bind_depth_stencil_state( failover->sw, failover->depth_stencil );
  75
  76    if (failover->dirty & FO_NEW_FRAMEBUFFER)
  77       failover->sw->set_framebuffer_state( failover->sw, &failover->framebuffer );
  78
  79    if (failover->dirty & FO_NEW_FRAGMENT_SHADER)
  80       failover->sw->set_fs_state( failover->sw, &failover->fragment_shader );
  81
  82    if (failover->dirty & FO_NEW_VERTEX_SHADER)
  83       failover->sw->set_vs_state( failover->sw, &failover->vertex_shader );
  84
  85    if (failover->dirty & FO_NEW_STIPPLE)
  86       failover->sw->set_polygon_stipple( failover->sw, &failover->poly_stipple );
  87
  88    if (failover->dirty & FO_NEW_SETUP)
  89       failover->sw->set_setup_state( failover->sw, &failover->setup );
  90
  91    if (failover->dirty & FO_NEW_SCISSOR)
  92       failover->sw->set_scissor_state( failover->sw, &failover->scissor );
  93
  94    if (failover->dirty & FO_NEW_VIEWPORT)
  95       failover->sw->set_viewport_state( failover->sw, &failover->viewport );
  96
  97    if (failover->dirty & FO_NEW_SAMPLER) {
  98       for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
  99          if (failover->dirty_sampler & (1<<i)) {
 100             failover->sw->bind_sampler_state( failover->sw, i,
 101                                               failover->sampler[i] );
 102          }
 103       }
 104    }
 105
 106    if (failover->dirty & FO_NEW_TEXTURE) {
 107       for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 108          if (failover->dirty_texture & (1<<i)) {
 109             failover->sw->set_texture_state( failover->sw, i,
 110                                              failover->texture[i] );
 111          }
 112       }
 113    }
 114
 115    if (failover->dirty & FO_NEW_VERTEX_BUFFER) {
 116       for (i = 0; i < PIPE_ATTRIB_MAX; i++) {
 117          if (failover->dirty_vertex_buffer & (1<<i)) {
 118             failover->sw->set_vertex_buffer( failover->sw, i,
 119                                              &failover->vertex_buffer[i] );
 120          }
 121       }
 122    }
 123
 124    if (failover->dirty & FO_NEW_VERTEX_ELEMENT) {
 125       for (i = 0; i < PIPE_ATTRIB_MAX; i++) {
 126          if (failover->dirty_vertex_element & (1<<i)) {
 127             failover->sw->set_vertex_element( failover->sw, i,
 128                                               &failover->vertex_element[i] );
 129          }
 130       }
 131    }
 132
 133    failover->dirty = 0;
 134    failover->dirty_vertex_element = 0;
 135    failover->dirty_vertex_buffer = 0;
 136    failover->dirty_texture = 0;
 137    failover->dirty_sampler = 0;
 138 }