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
  29
  30 #include "svga_context.h"
  31 #include "svga_state.h"
  32 #include "svga_debug.h"
  33 #include "svga_hw_reg.h"
  34
  35 /***********************************************************************
  36  */
  37
  38 static INLINE SVGA3dDeclType
  39 svga_translate_vertex_format(enum pipe_format format)
  40 {
  41    switch (format) {
  42    case PIPE_FORMAT_R32_FLOAT:            return SVGA3D_DECLTYPE_FLOAT1;
  43    case PIPE_FORMAT_R32G32_FLOAT:         return SVGA3D_DECLTYPE_FLOAT2;
  44    case PIPE_FORMAT_R32G32B32_FLOAT:      return SVGA3D_DECLTYPE_FLOAT3;
  45    case PIPE_FORMAT_R32G32B32A32_FLOAT:   return SVGA3D_DECLTYPE_FLOAT4;
  46    case PIPE_FORMAT_A8R8G8B8_UNORM:       return SVGA3D_DECLTYPE_D3DCOLOR;
  47    case PIPE_FORMAT_R8G8B8A8_USCALED:     return SVGA3D_DECLTYPE_UBYTE4;
  48    case PIPE_FORMAT_R16G16_SSCALED:       return SVGA3D_DECLTYPE_SHORT2;
  49    case PIPE_FORMAT_R16G16B16A16_SSCALED: return SVGA3D_DECLTYPE_SHORT4;
  50    case PIPE_FORMAT_R8G8B8A8_UNORM:       return SVGA3D_DECLTYPE_UBYTE4N;
  51    case PIPE_FORMAT_R16G16_SNORM:         return SVGA3D_DECLTYPE_SHORT2N;
  52    case PIPE_FORMAT_R16G16B16A16_SNORM:   return SVGA3D_DECLTYPE_SHORT4N;
  53    case PIPE_FORMAT_R16G16_UNORM:         return SVGA3D_DECLTYPE_USHORT2N;
  54    case PIPE_FORMAT_R16G16B16A16_UNORM:   return SVGA3D_DECLTYPE_USHORT4N;
  55
  56    /* These formats don't exist yet:
  57     *
  58    case PIPE_FORMAT_R10G10B10_USCALED:    return SVGA3D_DECLTYPE_UDEC3;
  59    case PIPE_FORMAT_R10G10B10_SNORM:      return SVGA3D_DECLTYPE_DEC3N;
  60    case PIPE_FORMAT_R16G16_FLOAT:         return SVGA3D_DECLTYPE_FLOAT16_2;
  61    case PIPE_FORMAT_R16G16B16A16_FLOAT:   return SVGA3D_DECLTYPE_FLOAT16_4;
  62    */
  63
  64    default:
  65       /* There are many formats without hardware support.  This case
  66        * will be hit regularly, meaning we'll need swvfetch.
  67        */
  68       return SVGA3D_DECLTYPE_MAX;
  69    }
  70 }
  71
  72
  73 static int update_need_swvfetch( struct svga_context *svga,
  74                                  unsigned dirty )
  75 {
  76    unsigned i;
  77    boolean need_swvfetch = FALSE;
  78
  79    if (!svga->curr.velems) {
  80       /* No vertex elements bound. */
  81       return 0;
  82    }
  83
  84    for (i = 0; i < svga->curr.velems->count; i++) {
  85       svga->state.sw.ve_format[i] = svga_translate_vertex_format(svga->curr.velems->velem[i].src_format);
  86       if (svga->state.sw.ve_format[i] == SVGA3D_DECLTYPE_MAX) {
  87          need_swvfetch = TRUE;
  88          break;
  89       }
  90    }
  91
  92    if (need_swvfetch != svga->state.sw.need_swvfetch) {
  93       svga->state.sw.need_swvfetch = need_swvfetch;
  94       svga->dirty |= SVGA_NEW_NEED_SWVFETCH;
  95    }
  96
  97    return 0;
  98 }
  99
 100 struct svga_tracked_state svga_update_need_swvfetch =
 101 {
 102    "update need_swvfetch",
 103    ( SVGA_NEW_VELEMENT ),
 104    update_need_swvfetch
 105 };
 106
 107
 108 /***********************************************************************
 109  */
 110
 111 static int update_need_pipeline( struct svga_context *svga,
 112                                  unsigned dirty )
 113 {
 114
 115    boolean need_pipeline = FALSE;
 116    struct svga_vertex_shader *vs = svga->curr.vs;
 117
 118    /* SVGA_NEW_RAST, SVGA_NEW_REDUCED_PRIMITIVE
 119     */
 120    if (svga->curr.rast->need_pipeline & (1 << svga->curr.reduced_prim)) {
 121       SVGA_DBG(DEBUG_SWTNL, "%s: rast need_pipeline (%d) & prim (%x)\n",
 122                  __FUNCTION__,
 123                  svga->curr.rast->need_pipeline,
 124                  (1 << svga->curr.reduced_prim) );
 125       need_pipeline = TRUE;
 126    }
 127
 128    /* EDGEFLAGS
 129     */
 130     if (vs->base.info.writes_edgeflag) {
 131       SVGA_DBG(DEBUG_SWTNL, "%s: edgeflags\n", __FUNCTION__);
 132       need_pipeline = TRUE;
 133    }
 134
 135    /* SVGA_NEW_CLIP
 136     */
 137    if (svga->curr.clip.nr) {
 138       SVGA_DBG(DEBUG_SWTNL, "%s: userclip\n", __FUNCTION__);
 139       need_pipeline = TRUE;
 140    }
 141
 142    if (need_pipeline != svga->state.sw.need_pipeline) {
 143       svga->state.sw.need_pipeline = need_pipeline;
 144       svga->dirty |= SVGA_NEW_NEED_PIPELINE;
 145    }
 146
 147    return 0;
 148 }
 149
 150
 151 struct svga_tracked_state svga_update_need_pipeline =
 152 {
 153    "need pipeline",
 154    (SVGA_NEW_RAST |
 155     SVGA_NEW_CLIP |
 156     SVGA_NEW_VS |
 157     SVGA_NEW_REDUCED_PRIMITIVE),
 158    update_need_pipeline
 159 };
 160
 161
 162 /***********************************************************************
 163  */
 164
 165 static int update_need_swtnl( struct svga_context *svga,
 166                               unsigned dirty )
 167 {
 168    boolean need_swtnl;
 169
 170    if (svga->debug.no_swtnl) {
 171       svga->state.sw.need_swvfetch = 0;
 172       svga->state.sw.need_pipeline = 0;
 173    }
 174
 175    need_swtnl = (svga->state.sw.need_swvfetch ||
 176                  svga->state.sw.need_pipeline);
 177
 178    if (svga->debug.force_swtnl) {
 179       need_swtnl = 1;
 180    }
 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 0;
 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 };