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 /**
  35  * Given a gallium vertex element format, return the corresponding SVGA3D
  36  * format.  Return SVGA3D_DECLTYPE_MAX for unsupported gallium formats.
  37  */
  38 static INLINE SVGA3dDeclType
  39 svga_translate_vertex_format(const struct svga_context *svga,
  40                              enum pipe_format format)
  41 {
  42    switch (format) {
  43    case PIPE_FORMAT_R32_FLOAT:            return SVGA3D_DECLTYPE_FLOAT1;
  44    case PIPE_FORMAT_R32G32_FLOAT:         return SVGA3D_DECLTYPE_FLOAT2;
  45    case PIPE_FORMAT_R32G32B32_FLOAT:      return SVGA3D_DECLTYPE_FLOAT3;
  46    case PIPE_FORMAT_R32G32B32A32_FLOAT:   return SVGA3D_DECLTYPE_FLOAT4;
  47    case PIPE_FORMAT_B8G8R8A8_UNORM:       return SVGA3D_DECLTYPE_D3DCOLOR;
  48    case PIPE_FORMAT_R8G8B8A8_USCALED:     return SVGA3D_DECLTYPE_UBYTE4;
  49    case PIPE_FORMAT_R16G16_SSCALED:       return SVGA3D_DECLTYPE_SHORT2;
  50    case PIPE_FORMAT_R16G16B16A16_SSCALED: return SVGA3D_DECLTYPE_SHORT4;
  51    case PIPE_FORMAT_R8G8B8A8_UNORM:       return SVGA3D_DECLTYPE_UBYTE4N;
  52    case PIPE_FORMAT_R16G16_SNORM:         return SVGA3D_DECLTYPE_SHORT2N;
  53    case PIPE_FORMAT_R16G16B16A16_SNORM:   return SVGA3D_DECLTYPE_SHORT4N;
  54    case PIPE_FORMAT_R16G16_UNORM:         return SVGA3D_DECLTYPE_USHORT2N;
  55    case PIPE_FORMAT_R16G16B16A16_UNORM:   return SVGA3D_DECLTYPE_USHORT4N;
  56    case PIPE_FORMAT_R10G10B10X2_USCALED:  return SVGA3D_DECLTYPE_UDEC3;
  57    case PIPE_FORMAT_R10G10B10X2_SNORM:    return SVGA3D_DECLTYPE_DEC3N;
  58    case PIPE_FORMAT_R16G16_FLOAT:         return SVGA3D_DECLTYPE_FLOAT16_2;
  59    case PIPE_FORMAT_R16G16B16A16_FLOAT:   return SVGA3D_DECLTYPE_FLOAT16_4;
  60
  61    case PIPE_FORMAT_R8G8B8_SNORM:
  62       if (svga->workaround.use_decltype_ubyte4n) {
  63          return SVGA3D_DECLTYPE_UBYTE4N;
  64       }
  65       /* fall-through */
  66
  67    default:
  68       /* There are many formats without hardware support.  This case
  69        * will be hit regularly, meaning we'll need swvfetch.
  70        */
  71       return SVGA3D_DECLTYPE_MAX;
  72    }
  73 }
  74
  75
  76 static enum pipe_error
  77 update_need_swvfetch(struct svga_context *svga, unsigned dirty)
  78 {
  79    unsigned i;
  80    boolean need_swvfetch = FALSE;
  81
  82    if (!svga->curr.velems) {
  83       /* No vertex elements bound. */
  84       return PIPE_OK;
  85    }
  86
  87    for (i = 0; i < svga->curr.velems->count; i++) {
  88       svga->state.sw.ve_format[i] =
  89          svga_translate_vertex_format(svga,
  90                                       svga->curr.velems->velem[i].src_format);
  91       if (svga->state.sw.ve_format[i] == SVGA3D_DECLTYPE_MAX) {
  92          /* Unsupported format - use software fetch */
  93          need_swvfetch = TRUE;
  94          break;
  95       }
  96    }
  97
  98    if (need_swvfetch != svga->state.sw.need_swvfetch) {
  99       svga->state.sw.need_swvfetch = need_swvfetch;
 100       svga->dirty |= SVGA_NEW_NEED_SWVFETCH;
 101    }
 102
 103    return PIPE_OK;
 104 }
 105
 106 struct svga_tracked_state svga_update_need_swvfetch =
 107 {
 108    "update need_swvfetch",
 109    ( SVGA_NEW_VELEMENT ),
 110    update_need_swvfetch
 111 };
 112
 113
 114
 115 static enum pipe_error
 116 update_need_pipeline(struct svga_context *svga, unsigned dirty)
 117 {
 118    boolean need_pipeline = FALSE;
 119    struct svga_vertex_shader *vs = svga->curr.vs;
 120
 121    /* SVGA_NEW_RAST, SVGA_NEW_REDUCED_PRIMITIVE
 122     */
 123    if (svga->curr.rast->need_pipeline & (1 << svga->curr.reduced_prim)) {
 124       SVGA_DBG(DEBUG_SWTNL, "%s: rast need_pipeline (0x%x) & prim (0x%x)\n",
 125                  __FUNCTION__,
 126                  svga->curr.rast->need_pipeline,
 127                  (1 << svga->curr.reduced_prim) );
 128       SVGA_DBG(DEBUG_SWTNL, "%s: rast need_pipeline tris (%s), lines (%s), points (%s)\n",
 129                  __FUNCTION__,
 130                  svga->curr.rast->need_pipeline_tris_str,
 131                  svga->curr.rast->need_pipeline_lines_str,
 132                  svga->curr.rast->need_pipeline_points_str);
 133       need_pipeline = TRUE;
 134    }
 135
 136    /* EDGEFLAGS
 137     */
 138     if (vs && vs->base.info.writes_edgeflag) {
 139       SVGA_DBG(DEBUG_SWTNL, "%s: edgeflags\n", __FUNCTION__);
 140       need_pipeline = TRUE;
 141    }
 142
 143    /* SVGA_NEW_FS, SVGA_NEW_RAST, SVGA_NEW_REDUCED_PRIMITIVE
 144     */
 145    if (svga->curr.reduced_prim == PIPE_PRIM_POINTS) {
 146       unsigned sprite_coord_gen = svga->curr.rast->templ.sprite_coord_enable;
 147       unsigned generic_inputs =
 148          svga->curr.fs ? svga->curr.fs->generic_inputs : 0;
 149
 150       if (sprite_coord_gen &&
 151           (generic_inputs & ~sprite_coord_gen)) {
 152          /* The fragment shader is using some generic inputs that are
 153           * not being replaced by auto-generated point/sprite coords (and
 154           * auto sprite coord generation is turned on).
 155           * The SVGA3D interface does not support that: if we enable
 156           * SVGA3D_RS_POINTSPRITEENABLE it gets enabled for _all_
 157           * texture coordinate sets.
 158           * To solve this, we have to use the draw-module's wide/sprite
 159           * point stage.
 160           */
 161          need_pipeline = TRUE;
 162       }
 163    }
 164
 165    if (need_pipeline != svga->state.sw.need_pipeline) {
 166       svga->state.sw.need_pipeline = need_pipeline;
 167       svga->dirty |= SVGA_NEW_NEED_PIPELINE;
 168    }
 169
 170    /* DEBUG */
 171    if (0 && svga->state.sw.need_pipeline)
 172       debug_printf("sw.need_pipeline = %d\n", svga->state.sw.need_pipeline);
 173
 174    return PIPE_OK;
 175 }
 176
 177
 178 struct svga_tracked_state svga_update_need_pipeline =
 179 {
 180    "need pipeline",
 181    (SVGA_NEW_RAST |
 182     SVGA_NEW_FS |
 183     SVGA_NEW_VS |
 184     SVGA_NEW_REDUCED_PRIMITIVE),
 185    update_need_pipeline
 186 };
 187
 188
 189 static enum pipe_error
 190 update_need_swtnl(struct svga_context *svga, unsigned dirty)
 191 {
 192    boolean need_swtnl;
 193
 194    if (svga->debug.no_swtnl) {
 195       svga->state.sw.need_swvfetch = FALSE;
 196       svga->state.sw.need_pipeline = FALSE;
 197    }
 198
 199    need_swtnl = (svga->state.sw.need_swvfetch ||
 200                  svga->state.sw.need_pipeline);
 201
 202    if (svga->debug.force_swtnl) {
 203       need_swtnl = TRUE;
 204    }
 205
 206    /*
 207     * Some state changes the draw module does makes us believe we
 208     * we don't need swtnl. This causes the vdecl code to pickup
 209     * the wrong buffers and vertex formats. Try trivial/line-wide.
 210     */
 211    if (svga->state.sw.in_swtnl_draw)
 212       need_swtnl = TRUE;
 213
 214    if (need_swtnl != svga->state.sw.need_swtnl) {
 215       SVGA_DBG(DEBUG_SWTNL|DEBUG_PERF,
 216                "%s: need_swvfetch %s, need_pipeline %s\n",
 217                __FUNCTION__,
 218                svga->state.sw.need_swvfetch ? "true" : "false",
 219                svga->state.sw.need_pipeline ? "true" : "false");
 220
 221       svga->state.sw.need_swtnl = need_swtnl;
 222       svga->dirty |= SVGA_NEW_NEED_SWTNL;
 223       svga->swtnl.new_vdecl = TRUE;
 224    }
 225
 226    return PIPE_OK;
 227 }
 228
 229
 230 struct svga_tracked_state svga_update_need_swtnl =
 231 {
 232    "need swtnl",
 233    (SVGA_NEW_NEED_PIPELINE |
 234     SVGA_NEW_NEED_SWVFETCH),
 235    update_need_swtnl
 236 };