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_memory.h"
  33
  34 #include "draw/draw_context.h"
  35
  36 #include "lp_context.h"
  37 #include "lp_context.h"
  38 #include "lp_state.h"
  39 #include "lp_texture.h"
  40 #include "lp_tex_cache.h"
  41 #include "draw/draw_context.h"
  42
  43
  44
  45 void *
  46 llvmpipe_create_sampler_state(struct pipe_context *pipe,
  47                               const struct pipe_sampler_state *sampler)
  48 {
  49    return mem_dup(sampler, sizeof(*sampler));
  50 }
  51
  52
  53 void
  54 llvmpipe_bind_sampler_states(struct pipe_context *pipe,
  55                              unsigned num, void **sampler)
  56 {
  57    struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
  58    unsigned i;
  59
  60    assert(num <= PIPE_MAX_SAMPLERS);
  61
  62    /* Check for no-op */
  63    if (num == llvmpipe->num_samplers &&
  64        !memcmp(llvmpipe->sampler, sampler, num * sizeof(void *)))
  65       return;
  66
  67    draw_flush(llvmpipe->draw);
  68
  69    for (i = 0; i < num; ++i)
  70       llvmpipe->sampler[i] = sampler[i];
  71    for (i = num; i < PIPE_MAX_SAMPLERS; ++i)
  72       llvmpipe->sampler[i] = NULL;
  73
  74    llvmpipe->num_samplers = num;
  75
  76    llvmpipe->dirty |= LP_NEW_SAMPLER;
  77 }
  78
  79
  80 void
  81 llvmpipe_set_fragment_sampler_textures(struct pipe_context *pipe,
  82                                        unsigned num,
  83                                        struct pipe_texture **texture)
  84 {
  85    struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
  86    uint i;
  87
  88    assert(num <= PIPE_MAX_SAMPLERS);
  89
  90    /* Check for no-op */
  91    if (num == llvmpipe->num_textures &&
  92        !memcmp(llvmpipe->texture, texture, num * sizeof(struct pipe_texture *)))
  93       return;
  94
  95    draw_flush(llvmpipe->draw);
  96
  97    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
  98       struct pipe_texture *tex = i < num ? texture[i] : NULL;
  99
 100       pipe_texture_reference(&llvmpipe->texture[i], tex);
 101       lp_tex_tile_cache_set_texture(llvmpipe->tex_cache[i], tex);
 102
 103       if(tex) {
 104          struct llvmpipe_texture *lp_tex = llvmpipe_texture(tex);
 105          struct lp_jit_texture *jit_tex = &llvmpipe->jit_context.textures[i];
 106          jit_tex->width = tex->width0;
 107          jit_tex->height = tex->height0;
 108          jit_tex->stride = lp_tex->stride[0];
 109          if(!lp_tex->dt)
 110             jit_tex->data = lp_tex->data;
 111       }
 112    }
 113
 114    llvmpipe->num_textures = num;
 115
 116    llvmpipe->dirty |= LP_NEW_TEXTURE;
 117 }
 118
 119
 120 void
 121 llvmpipe_set_vertex_sampler_textures(struct pipe_context *pipe,
 122                                      unsigned num,
 123                                      struct pipe_texture **texture)
 124 {
 125    /* XXX to do */
 126 }
 127
 128
 129 void
 130 llvmpipe_delete_sampler_state(struct pipe_context *pipe,
 131                               void *sampler)
 132 {
 133    FREE( sampler );
 134 }
 135
 136
 137