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 enum pipe_error
  75 update_need_swvfetch( struct svga_context *svga,
  76                       unsigned dirty )
  77 {
  78    unsigned i;
  79    boolean need_swvfetch = FALSE;
  80
  81    if (!svga->curr.velems) {
  82       /* No vertex elements bound. */
  83       return 0;
  84    }
  85
  86    for (i = 0; i < svga->curr.velems->count; i++) {
  87       svga->state.sw.ve_format[i] = svga_translate_vertex_format(svga->curr.velems->velem[i].src_format);
  88       if (svga->state.sw.ve_format[i] == SVGA3D_DECLTYPE_MAX) {
  89          /* Unsupported format - use software fetch */
  90          need_swvfetch = TRUE;
  91          break;
  92       }
  93    }
  94
  95    if (need_swvfetch != svga->state.sw.need_swvfetch) {
  96       svga->state.sw.need_swvfetch = need_swvfetch;
  97       svga->dirty |= SVGA_NEW_NEED_SWVFETCH;
  98    }
  99
 100    return PIPE_OK;
 101 }
 102
 103 struct svga_tracked_state svga_update_need_swvfetch =
 104 {
 105    "update need_swvfetch",
 106    ( SVGA_NEW_VELEMENT ),
 107    update_need_swvfetch
 108 };
 109
 110
 111 /***********************************************************************
 112  */
 113
 114 static enum pipe_error
 115 update_need_pipeline( struct svga_context *svga,
 116                       unsigned dirty )
 117 {
 118
 119    boolean need_pipeline = FALSE;
 120    struct svga_vertex_shader *vs = svga->curr.vs;
 121
 122    /* SVGA_NEW_RAST, SVGA_NEW_REDUCED_PRIMITIVE
 123     */
 124    if (svga->curr.rast->need_pipeline & (1 << svga->curr.reduced_prim)) {
 125       SVGA_DBG(DEBUG_SWTNL, "%s: rast need_pipeline (0x%x) & prim (0x%x)\n",
 126                  __FUNCTION__,
 127                  svga->curr.rast->need_pipeline,
 128                  (1 << svga->curr.reduced_prim) );
 129       SVGA_DBG(DEBUG_SWTNL, "%s: rast need_pipeline tris (%s), lines (%s), points (%s)\n",
 130                  __FUNCTION__,
 131                  svga->curr.rast->need_pipeline_tris_str,
 132                  svga->curr.rast->need_pipeline_lines_str,
 133                  svga->curr.rast->need_pipeline_points_str);
 134       need_pipeline = TRUE;
 135    }
 136
 137    /* EDGEFLAGS
 138     */
 139     if (vs && vs->base.info.writes_edgeflag) {
 140       SVGA_DBG(DEBUG_SWTNL, "%s: edgeflags\n", __FUNCTION__);
 141       need_pipeline = TRUE;
 142    }
 143
 144    /* SVGA_NEW_FS, SVGA_NEW_RAST, SVGA_NEW_REDUCED_PRIMITIVE
 145     */
 146    if (svga->curr.reduced_prim == PIPE_PRIM_POINTS) {
 147       unsigned sprite_coord_gen = svga->curr.rast->templ.sprite_coord_enable;
 148       unsigned generic_inputs =
 149          svga->curr.fs ? svga->curr.fs->generic_inputs : 0;
 150
 151       if (sprite_coord_gen &&
 152           (generic_inputs & ~sprite_coord_gen)) {
 153          /* The fragment shader is using some generic inputs that are
 154           * not being replaced by auto-generated point/sprite coords (and
 155           * auto sprite coord generation is turned on).
 156           * The SVGA3D interface does not support that: if we enable
 157           * SVGA3D_RS_POINTSPRITEENABLE it gets enabled for _all_
 158           * texture coordinate sets.
 159           * To solve this, we have to use the draw-module's wide/sprite
 160           * point stage.
 161           */
 162          need_pipeline = TRUE;
 163       }
 164    }
 165
 166    if (need_pipeline != svga->state.sw.need_pipeline) {
 167       svga->state.sw.need_pipeline = need_pipeline;
 168       svga->dirty |= SVGA_NEW_NEED_PIPELINE;
 169    }
 170
 171    /* DEBUG */
 172    if (0 && svga->state.sw.need_pipeline)
 173       debug_printf("sw.need_pipeline = %d\n", svga->state.sw.need_pipeline);
 174
 175    return PIPE_OK;
 176 }
 177
 178
 179 struct svga_tracked_state svga_update_need_pipeline =
 180 {
 181    "need pipeline",
 182    (SVGA_NEW_RAST |
 183     SVGA_NEW_FS |
 184     SVGA_NEW_VS |
 185     SVGA_NEW_REDUCED_PRIMITIVE),
 186    update_need_pipeline
 187 };
 188
 189
 190 /***********************************************************************
 191  */
 192
 193 static enum pipe_error
 194 update_need_swtnl( struct svga_context *svga,
 195                    unsigned dirty )
 196 {
 197    boolean need_swtnl;
 198
 199    if (svga->debug.no_swtnl) {
 200       svga->state.sw.need_swvfetch = FALSE;
 201       svga->state.sw.need_pipeline = FALSE;
 202    }
 203
 204    need_swtnl = (svga->state.sw.need_swvfetch ||
 205                  svga->state.sw.need_pipeline);
 206
 207    if (svga->debug.force_swtnl) {
 208       need_swtnl = TRUE;
 209    }
 210
 211    /*
 212     * Some state changes the draw module does makes us believe we
 213     * we don't need swtnl. This causes the vdecl code to pickup
 214     * the wrong buffers and vertex formats. Try trivial/line-wide.
 215     */
 216    if (svga->state.sw.in_swtnl_draw)
 217       need_swtnl = TRUE;
 218
 219    if (need_swtnl != svga->state.sw.need_swtnl) {
 220       SVGA_DBG(DEBUG_SWTNL|DEBUG_PERF,
 221                "%s: need_swvfetch %s, need_pipeline %s\n",
 222                __FUNCTION__,
 223                svga->state.sw.need_swvfetch ? "true" : "false",
 224                svga->state.sw.need_pipeline ? "true" : "false");
 225
 226       svga->state.sw.need_swtnl = need_swtnl;
 227       svga->dirty |= SVGA_NEW_NEED_SWTNL;
 228       svga->swtnl.new_vdecl = TRUE;
 229    }
 230
 231    return PIPE_OK;
 232 }
 233
 234
 235 struct svga_tracked_state svga_update_need_swtnl =
 236 {
 237    "need swtnl",
 238    (SVGA_NEW_NEED_PIPELINE |
 239     SVGA_NEW_NEED_SWVFETCH),
 240    update_need_swtnl
 241 };