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_state.h"
  30 #include "svga_debug.h"
  31 #include "svga_hw_reg.h"
  32
  33
  34 static enum pipe_error
  35 update_need_swvfetch(struct svga_context *svga, unsigned dirty)
  36 {
  37    if (!svga->curr.velems) {
  38       /* No vertex elements bound. */
  39       return PIPE_OK;
  40    }
  41
  42    if (svga->state.sw.need_swvfetch != svga->curr.velems->need_swvfetch) {
  43       svga->state.sw.need_swvfetch = svga->curr.velems->need_swvfetch;
  44       svga->dirty |= SVGA_NEW_NEED_SWVFETCH;
  45    }
  46
  47    return PIPE_OK;
  48 }
  49
  50 struct svga_tracked_state svga_update_need_swvfetch =
  51 {
  52    "update need_swvfetch",
  53    ( SVGA_NEW_VELEMENT ),
  54    update_need_swvfetch
  55 };
  56
  57
  58
  59 static enum pipe_error
  60 update_need_pipeline(struct svga_context *svga, unsigned dirty)
  61 {
  62    boolean need_pipeline = FALSE;
  63    struct svga_vertex_shader *vs = svga->curr.vs;
  64
  65    /* SVGA_NEW_RAST, SVGA_NEW_REDUCED_PRIMITIVE
  66     */
  67    if (svga->curr.rast->need_pipeline & (1 << svga->curr.reduced_prim)) {
  68       SVGA_DBG(DEBUG_SWTNL, "%s: rast need_pipeline (0x%x) & prim (0x%x)\n",
  69                  __FUNCTION__,
  70                  svga->curr.rast->need_pipeline,
  71                  (1 << svga->curr.reduced_prim) );
  72       SVGA_DBG(DEBUG_SWTNL, "%s: rast need_pipeline tris (%s), lines (%s), points (%s)\n",
  73                  __FUNCTION__,
  74                  svga->curr.rast->need_pipeline_tris_str,
  75                  svga->curr.rast->need_pipeline_lines_str,
  76                  svga->curr.rast->need_pipeline_points_str);
  77       need_pipeline = TRUE;
  78    }
  79
  80    /* EDGEFLAGS
  81     */
  82     if (vs && vs->base.info.writes_edgeflag) {
  83       SVGA_DBG(DEBUG_SWTNL, "%s: edgeflags\n", __FUNCTION__);
  84       need_pipeline = TRUE;
  85    }
  86
  87    /* SVGA_NEW_FS, SVGA_NEW_RAST, SVGA_NEW_REDUCED_PRIMITIVE
  88     */
  89    if (svga->curr.reduced_prim == PIPE_PRIM_POINTS) {
  90       unsigned sprite_coord_gen = svga->curr.rast->templ.sprite_coord_enable;
  91       unsigned generic_inputs =
  92          svga->curr.fs ? svga->curr.fs->generic_inputs : 0;
  93
  94       if (sprite_coord_gen &&
  95           (generic_inputs & ~sprite_coord_gen)) {
  96          /* The fragment shader is using some generic inputs that are
  97           * not being replaced by auto-generated point/sprite coords (and
  98           * auto sprite coord generation is turned on).
  99           * The SVGA3D interface does not support that: if we enable
 100           * SVGA3D_RS_POINTSPRITEENABLE it gets enabled for _all_
 101           * texture coordinate sets.
 102           * To solve this, we have to use the draw-module's wide/sprite
 103           * point stage.
 104           */
 105          need_pipeline = TRUE;
 106       }
 107    }
 108
 109    if (need_pipeline != svga->state.sw.need_pipeline) {
 110       svga->state.sw.need_pipeline = need_pipeline;
 111       svga->dirty |= SVGA_NEW_NEED_PIPELINE;
 112    }
 113
 114    /* DEBUG */
 115    if (0 && svga->state.sw.need_pipeline)
 116       debug_printf("sw.need_pipeline = %d\n", svga->state.sw.need_pipeline);
 117
 118    return PIPE_OK;
 119 }
 120
 121
 122 struct svga_tracked_state svga_update_need_pipeline =
 123 {
 124    "need pipeline",
 125    (SVGA_NEW_RAST |
 126     SVGA_NEW_FS |
 127     SVGA_NEW_VS |
 128     SVGA_NEW_REDUCED_PRIMITIVE),
 129    update_need_pipeline
 130 };
 131
 132
 133 static enum pipe_error
 134 update_need_swtnl(struct svga_context *svga, unsigned dirty)
 135 {
 136    boolean need_swtnl;
 137
 138    if (svga->debug.no_swtnl) {
 139       svga->state.sw.need_swvfetch = FALSE;
 140       svga->state.sw.need_pipeline = FALSE;
 141    }
 142
 143    need_swtnl = (svga->state.sw.need_swvfetch ||
 144                  svga->state.sw.need_pipeline);
 145
 146    if (svga->debug.force_swtnl) {
 147       need_swtnl = TRUE;
 148    }
 149
 150    /*
 151     * Some state changes the draw module does makes us believe we
 152     * we don't need swtnl. This causes the vdecl code to pickup
 153     * the wrong buffers and vertex formats. Try trivial/line-wide.
 154     */
 155    if (svga->state.sw.in_swtnl_draw)
 156       need_swtnl = TRUE;
 157
 158    if (need_swtnl != svga->state.sw.need_swtnl) {
 159       SVGA_DBG(DEBUG_SWTNL|DEBUG_PERF,
 160                "%s: need_swvfetch %s, need_pipeline %s\n",
 161                __FUNCTION__,
 162                svga->state.sw.need_swvfetch ? "true" : "false",
 163                svga->state.sw.need_pipeline ? "true" : "false");
 164
 165       svga->state.sw.need_swtnl = need_swtnl;
 166       svga->dirty |= SVGA_NEW_NEED_SWTNL;
 167       svga->swtnl.new_vdecl = TRUE;
 168    }
 169
 170    return PIPE_OK;
 171 }
 172
 173
 174 struct svga_tracked_state svga_update_need_swtnl =
 175 {
 176    "need swtnl",
 177    (SVGA_NEW_NEED_PIPELINE |
 178     SVGA_NEW_NEED_SWVFETCH),
 179    update_need_swtnl
 180 };