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 &&
  70        (svga->curr.rast->need_pipeline & (1 << svga->curr.reduced_prim))) {
  71       SVGA_DBG(DEBUG_SWTNL, "%s: rast need_pipeline (0x%x) & prim (0x%x)\n",
  72                  __FUNCTION__,
  73                  svga->curr.rast->need_pipeline,
  74                  (1 << svga->curr.reduced_prim) );
  75       SVGA_DBG(DEBUG_SWTNL, "%s: rast need_pipeline tris (%s), lines (%s), points (%s)\n",
  76                  __FUNCTION__,
  77                  svga->curr.rast->need_pipeline_tris_str,
  78                  svga->curr.rast->need_pipeline_lines_str,
  79                  svga->curr.rast->need_pipeline_points_str);
  80       need_pipeline = TRUE;
  81
  82       switch (svga->curr.reduced_prim) {
  83       case PIPE_PRIM_POINTS:
  84          reason = svga->curr.rast->need_pipeline_points_str;
  85          break;
  86       case PIPE_PRIM_LINES:
  87          reason = svga->curr.rast->need_pipeline_lines_str;
  88          break;
  89       case PIPE_PRIM_TRIANGLES:
  90          reason = svga->curr.rast->need_pipeline_tris_str;
  91          break;
  92       default:
  93          assert(!"Unexpected reduced prim type");
  94       }
  95    }
  96
  97    /* EDGEFLAGS
  98     */
  99     if (vs && vs->base.info.writes_edgeflag) {
 100       SVGA_DBG(DEBUG_SWTNL, "%s: edgeflags\n", __FUNCTION__);
 101       need_pipeline = TRUE;
 102       reason = "edge flags";
 103    }
 104
 105    /* SVGA_NEW_FS, SVGA_NEW_RAST, SVGA_NEW_REDUCED_PRIMITIVE
 106     */
 107    if (svga->curr.rast && svga->curr.reduced_prim == PIPE_PRIM_POINTS) {
 108       unsigned sprite_coord_gen = svga->curr.rast->templ.sprite_coord_enable;
 109       unsigned generic_inputs =
 110          svga->curr.fs ? svga->curr.fs->generic_inputs : 0;
 111
 112       if (!svga_have_vgpu10(svga) && sprite_coord_gen &&
 113           (generic_inputs & ~sprite_coord_gen)) {
 114          /* The fragment shader is using some generic inputs that are
 115           * not being replaced by auto-generated point/sprite coords (and
 116           * auto sprite coord generation is turned on).
 117           * The SVGA3D interface does not support that: if we enable
 118           * SVGA3D_RS_POINTSPRITEENABLE it gets enabled for _all_
 119           * texture coordinate sets.
 120           * To solve this, we have to use the draw-module's wide/sprite
 121           * point stage.
 122           */
 123          need_pipeline = TRUE;
 124          reason = "point sprite coordinate generation";
 125       }
 126    }
 127
 128    if (need_pipeline != svga->state.sw.need_pipeline) {
 129       svga->state.sw.need_pipeline = need_pipeline;
 130       svga->dirty |= SVGA_NEW_NEED_PIPELINE;
 131    }
 132
 133    /* DEBUG */
 134    if (0 && svga->state.sw.need_pipeline)
 135       debug_printf("sw.need_pipeline = %d\n", svga->state.sw.need_pipeline);
 136
 137    if (svga->state.sw.need_pipeline) {
 138       assert(reason);
 139       pipe_debug_message(&svga->debug.callback, FALLBACK,
 140                          "Using semi-fallback for %s", reason);
 141    }
 142
 143    return PIPE_OK;
 144 }
 145
 146
 147 struct svga_tracked_state svga_update_need_pipeline =
 148 {
 149    "need pipeline",
 150    (SVGA_NEW_RAST |
 151     SVGA_NEW_FS |
 152     SVGA_NEW_VS |
 153     SVGA_NEW_REDUCED_PRIMITIVE),
 154    update_need_pipeline
 155 };
 156
 157
 158 static enum pipe_error
 159 update_need_swtnl(struct svga_context *svga, unsigned dirty)
 160 {
 161    boolean need_swtnl;
 162
 163    if (svga->debug.no_swtnl) {
 164       svga->state.sw.need_swvfetch = FALSE;
 165       svga->state.sw.need_pipeline = FALSE;
 166    }
 167
 168    need_swtnl = (svga->state.sw.need_swvfetch ||
 169                  svga->state.sw.need_pipeline);
 170
 171    if (svga->debug.force_swtnl) {
 172       need_swtnl = TRUE;
 173    }
 174
 175    /*
 176     * Some state changes the draw module does makes us believe we
 177     * we don't need swtnl. This causes the vdecl code to pickup
 178     * the wrong buffers and vertex formats. Try trivial/line-wide.
 179     */
 180    if (svga->state.sw.in_swtnl_draw)
 181       need_swtnl = TRUE;
 182
 183    if (need_swtnl != svga->state.sw.need_swtnl) {
 184       SVGA_DBG(DEBUG_SWTNL|DEBUG_PERF,
 185                "%s: need_swvfetch %s, need_pipeline %s\n",
 186                __FUNCTION__,
 187                svga->state.sw.need_swvfetch ? "true" : "false",
 188                svga->state.sw.need_pipeline ? "true" : "false");
 189
 190       svga->state.sw.need_swtnl = need_swtnl;
 191       svga->dirty |= SVGA_NEW_NEED_SWTNL;
 192       svga->swtnl.new_vdecl = TRUE;
 193    }
 194
 195    return PIPE_OK;
 196 }
 197
 198
 199 struct svga_tracked_state svga_update_need_swtnl =
 200 {
 201    "need swtnl",
 202    (SVGA_NEW_NEED_PIPELINE |
 203     SVGA_NEW_NEED_SWVFETCH),
 204    update_need_swtnl
 205 };