src/gallium/drivers/llvmpipe/lp_state_sampler.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 /* Authors:
  29  *  Brian Paul
  30  */
  31
  32 #include "util/u_inlines.h"
  33 #include "util/u_memory.h"
  34
  35 #include "draw/draw_context.h"
  36
  37 #include "lp_context.h"
  38 #include "lp_context.h"
  39 #include "lp_state.h"
  40 #include "draw/draw_context.h"
  41
  42
  43
  44 void *
  45 llvmpipe_create_sampler_state(struct pipe_context *pipe,
  46                               const struct pipe_sampler_state *sampler)
  47 {
  48    return mem_dup(sampler, sizeof(*sampler));
  49 }
  50
  51
  52 void
  53 llvmpipe_bind_sampler_states(struct pipe_context *pipe,
  54                              unsigned num, void **sampler)
  55 {
  56    struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
  57    unsigned i;
  58
  59    assert(num <= PIPE_MAX_SAMPLERS);
  60
  61    /* Check for no-op */
  62    if (num == llvmpipe->num_samplers &&
  63        !memcmp(llvmpipe->sampler, sampler, num * sizeof(void *)))
  64       return;
  65
  66    draw_flush(llvmpipe->draw);
  67
  68    for (i = 0; i < num; ++i)
  69       llvmpipe->sampler[i] = sampler[i];
  70    for (i = num; i < PIPE_MAX_SAMPLERS; ++i)
  71       llvmpipe->sampler[i] = NULL;
  72
  73    llvmpipe->num_samplers = num;
  74
  75    llvmpipe->dirty |= LP_NEW_SAMPLER;
  76 }
  77
  78
  79 void
  80 llvmpipe_bind_vertex_sampler_states(struct pipe_context *pipe,
  81                                     unsigned num_samplers,
  82                                     void **samplers)
  83 {
  84    struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
  85    unsigned i;
  86
  87    assert(num_samplers <= PIPE_MAX_VERTEX_SAMPLERS);
  88
  89    /* Check for no-op */
  90    if (num_samplers == llvmpipe->num_vertex_samplers &&
  91        !memcmp(llvmpipe->vertex_samplers, samplers, num_samplers * sizeof(void *)))
  92       return;
  93
  94    draw_flush(llvmpipe->draw);
  95
  96    for (i = 0; i < num_samplers; ++i)
  97       llvmpipe->vertex_samplers[i] = samplers[i];
  98    for (i = num_samplers; i < PIPE_MAX_VERTEX_SAMPLERS; ++i)
  99       llvmpipe->vertex_samplers[i] = NULL;
 100
 101    llvmpipe->num_vertex_samplers = num_samplers;
 102
 103    llvmpipe->dirty |= LP_NEW_SAMPLER;
 104 }
 105
 106
 107 void
 108 llvmpipe_set_fragment_sampler_views(struct pipe_context *pipe,
 109                                     unsigned num,
 110                                     struct pipe_sampler_view **views)
 111 {
 112    struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
 113    uint i;
 114
 115    assert(num <= PIPE_MAX_SAMPLERS);
 116
 117    /* Check for no-op */
 118    if (num == llvmpipe->num_fragment_sampler_views &&
 119        !memcmp(llvmpipe->fragment_sampler_views, views, num * sizeof(struct pipe_sampler_view *)))
 120       return;
 121
 122    draw_flush(llvmpipe->draw);
 123
 124    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 125       struct pipe_sampler_view *view = i < num ? views[i] : NULL;
 126
 127       pipe_sampler_view_reference(&llvmpipe->fragment_sampler_views[i], view);
 128    }
 129
 130    llvmpipe->num_fragment_sampler_views = num;
 131
 132    llvmpipe->dirty |= LP_NEW_SAMPLER_VIEW;
 133 }
 134
 135
 136 void
 137 llvmpipe_set_vertex_sampler_views(struct pipe_context *pipe,
 138                                   unsigned num,
 139                                   struct pipe_sampler_view **views)
 140 {
 141    struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
 142    uint i;
 143
 144    assert(num <= PIPE_MAX_VERTEX_SAMPLERS);
 145
 146    /* Check for no-op */
 147    if (num == llvmpipe->num_vertex_sampler_views &&
 148        !memcmp(llvmpipe->vertex_sampler_views, views, num * sizeof(struct pipe_sampler_view *))) {
 149       return;
 150    }
 151
 152    draw_flush(llvmpipe->draw);
 153
 154    for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
 155       struct pipe_sampler_view *view = i < num ? views[i] : NULL;
 156
 157       pipe_sampler_view_reference(&llvmpipe->vertex_sampler_views[i], view);
 158    }
 159
 160    llvmpipe->num_vertex_sampler_views = num;
 161
 162    llvmpipe->dirty |= LP_NEW_SAMPLER_VIEW;
 163 }
 164
 165
 166 struct pipe_sampler_view *
 167 llvmpipe_create_sampler_view(struct pipe_context *pipe,
 168                             struct pipe_texture *texture,
 169                             const struct pipe_sampler_view *templ)
 170 {
 171    struct pipe_sampler_view *view = CALLOC_STRUCT(pipe_sampler_view);
 172
 173    if (view) {
 174       *view = *templ;
 175       view->reference.count = 1;
 176       view->texture = NULL;
 177       pipe_texture_reference(&view->texture, texture);
 178       view->context = pipe;
 179    }
 180
 181    return view;
 182 }
 183
 184
 185 void
 186 llvmpipe_sampler_view_destroy(struct pipe_context *pipe,
 187                               struct pipe_sampler_view *view)
 188 {
 189    pipe_texture_reference(&view->texture, NULL);
 190    FREE(view);
 191 }
 192
 193
 194 void
 195 llvmpipe_delete_sampler_state(struct pipe_context *pipe,
 196                               void *sampler)
 197 {
 198    FREE( sampler );
 199 }
 200
 201
 202