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(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_B8G8R8A8_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    case PIPE_FORMAT_R10G10B10X2_USCALED:  return SVGA3D_DECLTYPE_UDEC3;
  56    case PIPE_FORMAT_R10G10B10X2_SNORM:    return SVGA3D_DECLTYPE_DEC3N;
  57    case PIPE_FORMAT_R16G16_FLOAT:         return SVGA3D_DECLTYPE_FLOAT16_2;
  58    case PIPE_FORMAT_R16G16B16A16_FLOAT:   return SVGA3D_DECLTYPE_FLOAT16_4;
  59
  60    default:
  61       /* There are many formats without hardware support.  This case
  62        * will be hit regularly, meaning we'll need swvfetch.
  63        */
  64       return SVGA3D_DECLTYPE_MAX;
  65    }
  66 }
  67
  68
  69 static enum pipe_error
  70 update_need_swvfetch(struct svga_context *svga, unsigned dirty)
  71 {
  72    unsigned i;
  73    boolean need_swvfetch = FALSE;
  74
  75    if (!svga->curr.velems) {
  76       /* No vertex elements bound. */
  77       return PIPE_OK;
  78    }
  79
  80    for (i = 0; i < svga->curr.velems->count; i++) {
  81       svga->state.sw.ve_format[i] = svga_translate_vertex_format(svga->curr.velems->velem[i].src_format);
  82       if (svga->state.sw.ve_format[i] == SVGA3D_DECLTYPE_MAX) {
  83          /* Unsupported format - use software fetch */
  84          need_swvfetch = TRUE;
  85          break;
  86       }
  87    }
  88
  89    if (need_swvfetch != svga->state.sw.need_swvfetch) {
  90       svga->state.sw.need_swvfetch = need_swvfetch;
  91       svga->dirty |= SVGA_NEW_NEED_SWVFETCH;
  92    }
  93
  94    return PIPE_OK;
  95 }
  96
  97 struct svga_tracked_state svga_update_need_swvfetch =
  98 {
  99    "update need_swvfetch",
 100    ( SVGA_NEW_VELEMENT ),
 101    update_need_swvfetch
 102 };
 103
 104
 105
 106 static enum pipe_error
 107 update_need_pipeline(struct svga_context *svga, unsigned dirty)
 108 {
 109    boolean need_pipeline = FALSE;
 110    struct svga_vertex_shader *vs = svga->curr.vs;
 111
 112    /* SVGA_NEW_RAST, SVGA_NEW_REDUCED_PRIMITIVE
 113     */
 114    if (svga->curr.rast->need_pipeline & (1 << svga->curr.reduced_prim)) {
 115       SVGA_DBG(DEBUG_SWTNL, "%s: rast need_pipeline (0x%x) & prim (0x%x)\n",
 116                  __FUNCTION__,
 117                  svga->curr.rast->need_pipeline,
 118                  (1 << svga->curr.reduced_prim) );
 119       SVGA_DBG(DEBUG_SWTNL, "%s: rast need_pipeline tris (%s), lines (%s), points (%s)\n",
 120                  __FUNCTION__,
 121                  svga->curr.rast->need_pipeline_tris_str,
 122                  svga->curr.rast->need_pipeline_lines_str,
 123                  svga->curr.rast->need_pipeline_points_str);
 124       need_pipeline = TRUE;
 125    }
 126
 127    /* EDGEFLAGS
 128     */
 129     if (vs && vs->base.info.writes_edgeflag) {
 130       SVGA_DBG(DEBUG_SWTNL, "%s: edgeflags\n", __FUNCTION__);
 131       need_pipeline = TRUE;
 132    }
 133
 134    /* SVGA_NEW_FS, SVGA_NEW_RAST, SVGA_NEW_REDUCED_PRIMITIVE
 135     */
 136    if (svga->curr.reduced_prim == PIPE_PRIM_POINTS) {
 137       unsigned sprite_coord_gen = svga->curr.rast->templ.sprite_coord_enable;
 138       unsigned generic_inputs =
 139          svga->curr.fs ? svga->curr.fs->generic_inputs : 0;
 140
 141       if (sprite_coord_gen &&
 142           (generic_inputs & ~sprite_coord_gen)) {
 143          /* The fragment shader is using some generic inputs that are
 144           * not being replaced by auto-generated point/sprite coords (and
 145           * auto sprite coord generation is turned on).
 146           * The SVGA3D interface does not support that: if we enable
 147           * SVGA3D_RS_POINTSPRITEENABLE it gets enabled for _all_
 148           * texture coordinate sets.
 149           * To solve this, we have to use the draw-module's wide/sprite
 150           * point stage.
 151           */
 152          need_pipeline = TRUE;
 153       }
 154    }
 155
 156    if (need_pipeline != svga->state.sw.need_pipeline) {
 157       svga->state.sw.need_pipeline = need_pipeline;
 158       svga->dirty |= SVGA_NEW_NEED_PIPELINE;
 159    }
 160
 161    /* DEBUG */
 162    if (0 && svga->state.sw.need_pipeline)
 163       debug_printf("sw.need_pipeline = %d\n", svga->state.sw.need_pipeline);
 164
 165    return PIPE_OK;
 166 }
 167
 168
 169 struct svga_tracked_state svga_update_need_pipeline =
 170 {
 171    "need pipeline",
 172    (SVGA_NEW_RAST |
 173     SVGA_NEW_FS |
 174     SVGA_NEW_VS |
 175     SVGA_NEW_REDUCED_PRIMITIVE),
 176    update_need_pipeline
 177 };
 178
 179
 180 static enum pipe_error
 181 update_need_swtnl(struct svga_context *svga, unsigned dirty)
 182 {
 183    boolean need_swtnl;
 184
 185    if (svga->debug.no_swtnl) {
 186       svga->state.sw.need_swvfetch = FALSE;
 187       svga->state.sw.need_pipeline = FALSE;
 188    }
 189
 190    need_swtnl = (svga->state.sw.need_swvfetch ||
 191                  svga->state.sw.need_pipeline);
 192
 193    if (svga->debug.force_swtnl) {
 194       need_swtnl = TRUE;
 195    }
 196
 197    /*
 198     * Some state changes the draw module does makes us believe we
 199     * we don't need swtnl. This causes the vdecl code to pickup
 200     * the wrong buffers and vertex formats. Try trivial/line-wide.
 201     */
 202    if (svga->state.sw.in_swtnl_draw)
 203       need_swtnl = TRUE;
 204
 205    if (need_swtnl != svga->state.sw.need_swtnl) {
 206       SVGA_DBG(DEBUG_SWTNL|DEBUG_PERF,
 207                "%s: need_swvfetch %s, need_pipeline %s\n",
 208                __FUNCTION__,
 209                svga->state.sw.need_swvfetch ? "true" : "false",
 210                svga->state.sw.need_pipeline ? "true" : "false");
 211
 212       svga->state.sw.need_swtnl = need_swtnl;
 213       svga->dirty |= SVGA_NEW_NEED_SWTNL;
 214       svga->swtnl.new_vdecl = TRUE;
 215    }
 216
 217    return PIPE_OK;
 218 }
 219
 220
 221 struct svga_tracked_state svga_update_need_swtnl =
 222 {
 223    "need swtnl",
 224    (SVGA_NEW_NEED_PIPELINE |
 225     SVGA_NEW_NEED_SWVFETCH),
 226    update_need_swtnl
 227 };