src/gallium/drivers/svga/svga_state_need_swtnl.c

   1 /**********************************************************
   2  * Copyright 2008-2009 VMware, Inc.  All rights reserved.
   3  *
   4  * Permission is hereby granted, free of charge, to any person
   5  * obtaining a copy of this software and associated documentation
   6  * files (the "Software"), to deal in the Software without
   7  * restriction, including without limitation the rights to use, copy,
   8  * modify, merge, publish, distribute, sublicense, and/or sell copies
   9  * of the Software, and to permit persons to whom the Software is
  10  * furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be
  13  * included in all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  *
  24  **********************************************************/
  25
  26 #include "util/u_inlines.h"
  27 #include "pipe/p_state.h"
  28 #include "svga_context.h"
  29 #include "svga_shader.h"
  30 #include "svga_state.h"
  31 #include "svga_debug.h"
  32 #include "svga_hw_reg.h"
  33
  34
  35 static enum pipe_error
  36 update_need_swvfetch(struct svga_context *svga, unsigned dirty)
  37 {
  38    if (!svga->curr.velems) {
  39       /* No vertex elements bound. */
  40       return PIPE_OK;
  41    }
  42
  43    if (svga->state.sw.need_swvfetch != svga->curr.velems->need_swvfetch) {
  44       svga->state.sw.need_swvfetch = svga->curr.velems->need_swvfetch;
  45       svga->dirty |= SVGA_NEW_NEED_SWVFETCH;
  46    }
  47
  48    return PIPE_OK;
  49 }
  50
  51 struct svga_tracked_state svga_update_need_swvfetch =
  52 {
  53    "update need_swvfetch",
  54    ( SVGA_NEW_VELEMENT ),
  55    update_need_swvfetch
  56 };
  57
  58
  59
  60 static enum pipe_error
  61 update_need_pipeline(struct svga_context *svga, unsigned dirty)
  62 {
  63    boolean need_pipeline = FALSE;
  64    struct svga_vertex_shader *vs = svga->curr.vs;
  65    const char *reason = "";
  66
  67    /* SVGA_NEW_RAST, SVGA_NEW_REDUCED_PRIMITIVE
  68     */
  69    if (svga->curr.rast->need_pipeline & (1 << svga->curr.reduced_prim)) {
  70       SVGA_DBG(DEBUG_SWTNL, "%s: rast need_pipeline (0x%x) & prim (0x%x)\n",
  71                  __FUNCTION__,
  72                  svga->curr.rast->need_pipeline,
  73                  (1 << svga->curr.reduced_prim) );
  74       SVGA_DBG(DEBUG_SWTNL, "%s: rast need_pipeline tris (%s), lines (%s), points (%s)\n",
  75                  __FUNCTION__,
  76                  svga->curr.rast->need_pipeline_tris_str,
  77                  svga->curr.rast->need_pipeline_lines_str,
  78                  svga->curr.rast->need_pipeline_points_str);
  79       need_pipeline = TRUE;
  80
  81       switch (svga->curr.reduced_prim) {
  82       case PIPE_PRIM_POINTS:
  83          reason = svga->curr.rast->need_pipeline_points_str;
  84          break;
  85       case PIPE_PRIM_LINES:
  86          reason = svga->curr.rast->need_pipeline_lines_str;
  87          break;
  88       case PIPE_PRIM_TRIANGLES:
  89          reason = svga->curr.rast->need_pipeline_tris_str;
  90          break;
  91       default:
  92          assert(!"Unexpected reduced prim type");
  93       }
  94    }
  95
  96    /* EDGEFLAGS
  97     */
  98     if (vs && vs->base.info.writes_edgeflag) {
  99       SVGA_DBG(DEBUG_SWTNL, "%s: edgeflags\n", __FUNCTION__);
 100       need_pipeline = TRUE;
 101       reason = "edge flags";
 102    }
 103
 104    /* SVGA_NEW_FS, SVGA_NEW_RAST, SVGA_NEW_REDUCED_PRIMITIVE
 105     */
 106    if (svga->curr.reduced_prim == PIPE_PRIM_POINTS) {
 107       unsigned sprite_coord_gen = svga->curr.rast->templ.sprite_coord_enable;
 108       unsigned generic_inputs =
 109          svga->curr.fs ? svga->curr.fs->generic_inputs : 0;
 110
 111       if (!svga_have_vgpu10(svga) && sprite_coord_gen &&
 112           (generic_inputs & ~sprite_coord_gen)) {
 113          /* The fragment shader is using some generic inputs that are
 114           * not being replaced by auto-generated point/sprite coords (and
 115           * auto sprite coord generation is turned on).
 116           * The SVGA3D interface does not support that: if we enable
 117           * SVGA3D_RS_POINTSPRITEENABLE it gets enabled for _all_
 118           * texture coordinate sets.
 119           * To solve this, we have to use the draw-module's wide/sprite
 120           * point stage.
 121           */
 122          need_pipeline = TRUE;
 123          reason = "point sprite coordinate generation";
 124       }
 125    }
 126
 127    if (need_pipeline != svga->state.sw.need_pipeline) {
 128       svga->state.sw.need_pipeline = need_pipeline;
 129       svga->dirty |= SVGA_NEW_NEED_PIPELINE;
 130    }
 131
 132    /* DEBUG */
 133    if (0 && svga->state.sw.need_pipeline)
 134       debug_printf("sw.need_pipeline = %d\n", svga->state.sw.need_pipeline);
 135
 136    if (svga->state.sw.need_pipeline) {
 137       assert(reason);
 138       pipe_debug_message(&svga->debug.callback, FALLBACK,
 139                          "Using semi-fallback for %s", reason);
 140    }
 141
 142    return PIPE_OK;
 143 }
 144
 145
 146 struct svga_tracked_state svga_update_need_pipeline =
 147 {
 148    "need pipeline",
 149    (SVGA_NEW_RAST |
 150     SVGA_NEW_FS |
 151     SVGA_NEW_VS |
 152     SVGA_NEW_REDUCED_PRIMITIVE),
 153    update_need_pipeline
 154 };
 155
 156
 157 static enum pipe_error
 158 update_need_swtnl(struct svga_context *svga, unsigned dirty)
 159 {
 160    boolean need_swtnl;
 161
 162    if (svga->debug.no_swtnl) {
 163       svga->state.sw.need_swvfetch = FALSE;
 164       svga->state.sw.need_pipeline = FALSE;
 165    }
 166
 167    need_swtnl = (svga->state.sw.need_swvfetch ||
 168                  svga->state.sw.need_pipeline);
 169
 170    if (svga->debug.force_swtnl) {
 171       need_swtnl = TRUE;
 172    }
 173
 174    /*
 175     * Some state changes the draw module does makes us believe we
 176     * we don't need swtnl. This causes the vdecl code to pickup
 177     * the wrong buffers and vertex formats. Try trivial/line-wide.
 178     */
 179    if (svga->state.sw.in_swtnl_draw)
 180       need_swtnl = TRUE;
 181
 182    if (need_swtnl != svga->state.sw.need_swtnl) {
 183       SVGA_DBG(DEBUG_SWTNL|DEBUG_PERF,
 184                "%s: need_swvfetch %s, need_pipeline %s\n",
 185                __FUNCTION__,
 186                svga->state.sw.need_swvfetch ? "true" : "false",
 187                svga->state.sw.need_pipeline ? "true" : "false");
 188
 189       svga->state.sw.need_swtnl = need_swtnl;
 190       svga->dirty |= SVGA_NEW_NEED_SWTNL;
 191       svga->swtnl.new_vdecl = TRUE;
 192    }
 193
 194    return PIPE_OK;
 195 }
 196
 197
 198 struct svga_tracked_state svga_update_need_swtnl =
 199 {
 200    "need swtnl",
 201    (SVGA_NEW_NEED_PIPELINE |
 202     SVGA_NEW_NEED_SWVFETCH),
 203    update_need_swtnl
 204 };