src/gallium/drivers/failover/fo_state_emit.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:  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    if (failover->dirty & FO_NEW_BLEND)
  57       failover->sw->bind_blend_state( failover->sw,
  58                                       failover->blend->sw_state );
  59
  60    if (failover->dirty & FO_NEW_BLEND_COLOR)
  61       failover->sw->set_blend_color( failover->sw, &failover->blend_color );
  62
  63    if (failover->dirty & FO_NEW_CLIP)
  64       failover->sw->set_clip_state( failover->sw, &failover->clip );
  65
  66    if (failover->dirty & FO_NEW_DEPTH_STENCIL)
  67       failover->sw->bind_depth_stencil_alpha_state( failover->sw,
  68                                                     failover->depth_stencil->sw_state );
  69
  70    if (failover->dirty & FO_NEW_STENCIL_REF)
  71       failover->sw->set_stencil_ref( failover->sw, &failover->stencil_ref );
  72
  73    if (failover->dirty & FO_NEW_FRAMEBUFFER)
  74       failover->sw->set_framebuffer_state( failover->sw, &failover->framebuffer );
  75
  76    if (failover->dirty & FO_NEW_FRAGMENT_SHADER)
  77       failover->sw->bind_fs_state( failover->sw,
  78                                    failover->fragment_shader->sw_state );
  79
  80    if (failover->dirty & FO_NEW_VERTEX_SHADER)
  81       failover->sw->bind_vs_state( failover->sw,
  82                                    failover->vertex_shader->sw_state );
  83
  84    if (failover->dirty & FO_NEW_VERTEX_ELEMENT)
  85       failover->sw->bind_vertex_elements_state( failover->sw,
  86                                                 failover->vertex_elements->sw_state );
  87
  88    if (failover->dirty & FO_NEW_STIPPLE)
  89       failover->sw->set_polygon_stipple( failover->sw, &failover->poly_stipple );
  90
  91    if (failover->dirty & FO_NEW_RASTERIZER)
  92       failover->sw->bind_rasterizer_state( failover->sw,
  93                                            failover->rasterizer->sw_state );
  94
  95    if (failover->dirty & FO_NEW_SCISSOR)
  96       failover->sw->set_scissor_state( failover->sw, &failover->scissor );
  97
  98    if (failover->dirty & FO_NEW_VIEWPORT)
  99       failover->sw->set_viewport_state( failover->sw, &failover->viewport );
 100
 101    if (failover->dirty & FO_NEW_SAMPLER) {
 102       failover->sw->bind_fragment_sampler_states( failover->sw, failover->num_samplers,
 103                                                   failover->sw_sampler_state );
 104       failover->sw->bind_vertex_sampler_states(failover->sw,
 105                                                failover->num_vertex_samplers,
 106                                                failover->sw_vertex_sampler_state);
 107    }
 108
 109    if (failover->dirty & FO_NEW_TEXTURE) {
 110       failover->sw->set_fragment_sampler_textures( failover->sw, failover->num_textures,
 111                                                    failover->texture );
 112       failover->sw->set_vertex_sampler_textures(failover->sw,
 113                                                 failover->num_vertex_textures,
 114                                                 failover->vertex_textures);
 115    }
 116
 117    if (failover->dirty & FO_NEW_VERTEX_BUFFER) {
 118       failover->sw->set_vertex_buffers( failover->sw,
 119                                         failover->num_vertex_buffers,
 120                                         failover->vertex_buffers );
 121    }
 122
 123    failover->dirty = 0;
 124 }