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      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 };
    205