src/mesa/state_tracker/st_atom_texture.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  /*
  29   * Authors:
  30   *   Keith Whitwell <keith@tungstengraphics.com>
  31   *   Brian Paul
  32   */
  33
  34
  35 #include "st_context.h"
  36 #include "st_atom.h"
  37 #include "st_texture.h"
  38 #include "st_cb_texture.h"
  39 #include "pipe/p_context.h"
  40 #include "pipe/p_inlines.h"
  41 #include "cso_cache/cso_context.h"
  42
  43
  44 static void
  45 update_textures(struct st_context *st)
  46 {
  47    struct gl_fragment_program *fprog = st->ctx->FragmentProgram._Current;
  48    GLuint su;
  49
  50    st->state.num_textures = 0;
  51
  52    /*printf("%s samplers used = 0x%x\n", __FUNCTION__, fprog->Base.SamplersUsed);*/
  53
  54    for (su = 0; su < st->ctx->Const.MaxTextureCoordUnits; su++) {
  55       struct pipe_texture *pt = NULL;
  56
  57       if (fprog->Base.SamplersUsed & (1 << su)) {
  58          const GLuint texUnit = fprog->Base.SamplerUnits[su];
  59          struct gl_texture_object *texObj
  60             = st->ctx->Texture.Unit[texUnit]._Current;
  61          struct st_texture_object *stObj;
  62          GLboolean flush, retval;
  63
  64          if (!texObj) {
  65             texObj = st_get_default_texture(st);
  66          }
  67          stObj = st_texture_object(texObj);
  68
  69          retval = st_finalize_texture(st->ctx, st->pipe, texObj, &flush);
  70          if (!retval) {
  71             /* out of mem */
  72             continue;
  73          }
  74
  75          st->state.num_textures = su + 1;
  76
  77          pt = st_get_stobj_texture(stObj);
  78       }
  79
  80       /*
  81       if (pt) {
  82          printf("%s su=%u non-null\n", __FUNCTION__, su);
  83       }
  84       else {
  85          printf("%s su=%u null\n", __FUNCTION__, su);
  86       }
  87       */
  88
  89       pipe_texture_reference(&st->state.sampler_texture[su], pt);
  90    }
  91
  92    cso_set_sampler_textures(st->cso_context,
  93                             st->state.num_textures,
  94                             st->state.sampler_texture);
  95 }
  96
  97
  98 const struct st_tracked_state st_update_texture = {
  99    "st_update_texture",                                 /* name */
 100    {                                                    /* dirty */
 101       _NEW_TEXTURE,                                     /* mesa */
 102       ST_NEW_FRAGMENT_PROGRAM,                          /* st */
 103    },
 104    update_textures                                      /* update */
 105 };
 106
 107
 108
 109
 110 static void
 111 finalize_textures(struct st_context *st)
 112 {
 113    struct gl_fragment_program *fprog = st->ctx->FragmentProgram._Current;
 114    const GLboolean prev_missing_textures = st->missing_textures;
 115    GLuint su;
 116
 117    st->missing_textures = GL_FALSE;
 118
 119    for (su = 0; su < st->ctx->Const.MaxTextureCoordUnits; su++) {
 120       if (fprog->Base.SamplersUsed & (1 << su)) {
 121          const GLuint texUnit = fprog->Base.SamplerUnits[su];
 122          struct gl_texture_object *texObj
 123             = st->ctx->Texture.Unit[texUnit]._Current;
 124          struct st_texture_object *stObj = st_texture_object(texObj);
 125
 126          if (texObj) {
 127             GLboolean flush, retval;
 128
 129             retval = st_finalize_texture(st->ctx, st->pipe, texObj, &flush);
 130             if (!retval) {
 131                /* out of mem */
 132                st->missing_textures = GL_TRUE;
 133                continue;
 134             }
 135
 136             stObj->teximage_realloc = TRUE;
 137          }
 138       }
 139    }
 140
 141    if (prev_missing_textures != st->missing_textures)
 142       st->dirty.st |= ST_NEW_FRAGMENT_PROGRAM;
 143 }
 144
 145
 146
 147 const struct st_tracked_state st_finalize_textures = {
 148    "st_finalize_textures",              /* name */
 149    {                                    /* dirty */
 150       _NEW_TEXTURE,                     /* mesa */
 151       0,                                /* st */
 152    },
 153    finalize_textures                    /* update */
 154 };