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