src/gallium/drivers/svga/svga_pipe_ts.c

   1 /**********************************************************
   2  * Copyright 2018-2020 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 "pipe/p_context.h"
  27 #include "util/u_memory.h"
  28 #include "tgsi/tgsi_parse.h"
  29
  30 #include "svga_context.h"
  31 #include "svga_shader.h"
  32
  33 static void
  34 svga_set_tess_state(struct pipe_context *pipe,
  35                     const float default_outer_level[4],
  36                     const float default_inner_level[2])
  37 {
  38    struct svga_context *svga = svga_context(pipe);
  39    unsigned i;
  40
  41    for (i = 0; i < 4; i++) {
  42       svga->curr.default_tesslevels[i] = default_outer_level[i];
  43    }
  44    for (i = 0; i < 2; i++) {
  45       svga->curr.default_tesslevels[i + 4] = default_inner_level[i];
  46    }
  47 }
  48
  49
  50 static void *
  51 svga_create_tcs_state(struct pipe_context *pipe,
  52                       const struct pipe_shader_state *templ)
  53 {
  54    struct svga_context *svga = svga_context(pipe);
  55    struct svga_tcs_shader *tcs;
  56
  57    tcs = CALLOC_STRUCT(svga_tcs_shader);
  58    if (!tcs)
  59       return NULL;
  60
  61    SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_CREATETCS);
  62
  63    tcs->base.tokens = tgsi_dup_tokens(templ->tokens);
  64
  65    /* Collect basic info that we'll need later:
  66     */
  67    tgsi_scan_shader(tcs->base.tokens, &tcs->base.info);
  68
  69    tcs->base.id = svga->debug.shader_id++;
  70
  71    tcs->generic_outputs = svga_get_generic_outputs_mask(&tcs->base.info);
  72
  73    SVGA_STATS_TIME_POP(svga_sws(svga));
  74    return tcs;
  75 }
  76
  77
  78 static void
  79 svga_bind_tcs_state(struct pipe_context *pipe, void *shader)
  80 {
  81    struct svga_tcs_shader *tcs = (struct svga_tcs_shader *) shader;
  82    struct svga_context *svga = svga_context(pipe);
  83
  84    if (tcs == svga->curr.tcs)
  85       return;
  86
  87    svga->curr.tcs = tcs;
  88    svga->dirty |= SVGA_NEW_TCS;
  89 }
  90
  91
  92 static void
  93 svga_delete_tcs_state(struct pipe_context *pipe, void *shader)
  94 {
  95    struct svga_context *svga = svga_context(pipe);
  96    struct svga_tcs_shader *tcs = (struct svga_tcs_shader *) shader;
  97    struct svga_tcs_shader *next_tcs;
  98    struct svga_shader_variant *variant, *tmp;
  99
 100    svga_hwtnl_flush_retry(svga);
 101
 102    assert(tcs->base.parent == NULL);
 103
 104    while (tcs) {
 105       next_tcs = (struct svga_tcs_shader *)tcs->base.next;
 106       for (variant = tcs->base.variants; variant; variant = tmp) {
 107          tmp = variant->next;
 108
 109          /* Check if deleting currently bound shader */
 110          if (variant == svga->state.hw_draw.tcs) {
 111             SVGA_RETRY(svga, svga_set_shader(svga, SVGA3D_SHADERTYPE_HS, NULL));
 112             svga->state.hw_draw.tcs = NULL;
 113          }
 114
 115          svga_destroy_shader_variant(svga, variant);
 116       }
 117
 118       FREE((void *)tcs->base.tokens);
 119       FREE(tcs);
 120       tcs = next_tcs;
 121    }
 122 }
 123
 124
 125 void
 126 svga_cleanup_tcs_state(struct svga_context *svga)
 127 {
 128    if (svga->tcs.passthrough_tcs) {
 129       svga_delete_tcs_state(&svga->pipe, svga->tcs.passthrough_tcs);
 130    }
 131 }
 132
 133
 134 static void *
 135 svga_create_tes_state(struct pipe_context *pipe,
 136                       const struct pipe_shader_state *templ)
 137 {
 138    struct svga_context *svga = svga_context(pipe);
 139    struct svga_tes_shader *tes;
 140
 141    tes = CALLOC_STRUCT(svga_tes_shader);
 142    if (!tes)
 143       return NULL;
 144
 145    SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_CREATETES);
 146
 147    tes->base.tokens = tgsi_dup_tokens(templ->tokens);
 148
 149    /* Collect basic info that we'll need later:
 150     */
 151    tgsi_scan_shader(tes->base.tokens, &tes->base.info);
 152
 153    tes->base.id = svga->debug.shader_id++;
 154
 155    tes->generic_inputs = svga_get_generic_inputs_mask(&tes->base.info);
 156
 157    SVGA_STATS_TIME_POP(svga_sws(svga));
 158    return tes;
 159 }
 160
 161
 162 static void
 163 svga_bind_tes_state(struct pipe_context *pipe, void *shader)
 164 {
 165    struct svga_tes_shader *tes = (struct svga_tes_shader *) shader;
 166    struct svga_context *svga = svga_context(pipe);
 167
 168    if (tes == svga->curr.tes)
 169       return;
 170
 171    svga->curr.tes = tes;
 172    svga->dirty |= SVGA_NEW_TES;
 173 }
 174
 175
 176 static void
 177 svga_delete_tes_state(struct pipe_context *pipe, void *shader)
 178 {
 179    struct svga_context *svga = svga_context(pipe);
 180    struct svga_tes_shader *tes = (struct svga_tes_shader *) shader;
 181    struct svga_tes_shader *next_tes;
 182    struct svga_shader_variant *variant, *tmp;
 183
 184    svga_hwtnl_flush_retry(svga);
 185
 186    assert(tes->base.parent == NULL);
 187
 188    while (tes) {
 189       next_tes = (struct svga_tes_shader *)tes->base.next;
 190       for (variant = tes->base.variants; variant; variant = tmp) {
 191          tmp = variant->next;
 192
 193          /* Check if deleting currently bound shader */
 194          if (variant == svga->state.hw_draw.tes) {
 195             SVGA_RETRY(svga, svga_set_shader(svga, SVGA3D_SHADERTYPE_DS, NULL));
 196             svga->state.hw_draw.tes = NULL;
 197          }
 198
 199          svga_destroy_shader_variant(svga, variant);
 200       }
 201
 202       FREE((void *)tes->base.tokens);
 203       FREE(tes);
 204       tes = next_tes;
 205    }
 206 }
 207
 208
 209 void
 210 svga_init_ts_functions(struct svga_context *svga)
 211 {
 212    svga->pipe.set_tess_state = svga_set_tess_state;
 213    svga->pipe.create_tcs_state = svga_create_tcs_state;
 214    svga->pipe.bind_tcs_state = svga_bind_tcs_state;
 215    svga->pipe.delete_tcs_state = svga_delete_tcs_state;
 216    svga->pipe.create_tes_state = svga_create_tes_state;
 217    svga->pipe.bind_tes_state = svga_bind_tes_state;
 218    svga->pipe.delete_tes_state = svga_delete_tes_state;
 219 }