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  1. /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
  2.  
  3. /*
  4.  * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
  5.  *
  6.  * Permission is hereby granted, free of charge, to any person obtaining a
  7.  * copy of this software and associated documentation files (the "Software"),
  8.  * to deal in the Software without restriction, including without limitation
  9.  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10.  * and/or sell copies of the Software, and to permit persons to whom the
  11.  * Software is furnished to do so, subject to the following conditions:
  12.  *
  13.  * The above copyright notice and this permission notice (including the next
  14.  * paragraph) shall be included in all copies or substantial portions of the
  15.  * Software.
  16.  *
  17.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18.  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19.  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20.  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21.  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22.  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23.  * SOFTWARE.
  24.  *
  25.  * Authors:
  26.  *    Rob Clark <robclark@freedesktop.org>
  27.  */
  28.  
  29. #include "pipe/p_state.h"
  30. #include "util/u_string.h"
  31. #include "util/u_memory.h"
  32. #include "util/u_inlines.h"
  33.  
  34. #include "freedreno_texture.h"
  35. #include "freedreno_context.h"
  36. #include "freedreno_util.h"
  37.  
  38. static void
  39. fd_sampler_state_delete(struct pipe_context *pctx, void *hwcso)
  40. {
  41.         FREE(hwcso);
  42. }
  43.  
  44. static void
  45. fd_sampler_view_destroy(struct pipe_context *pctx,
  46.                 struct pipe_sampler_view *view)
  47. {
  48.         pipe_resource_reference(&view->texture, NULL);
  49.         FREE(view);
  50. }
  51.  
  52. static void bind_sampler_states(struct fd_texture_stateobj *tex,
  53.                 unsigned nr, void **hwcso)
  54. {
  55.         unsigned i;
  56.         unsigned new_nr = 0;
  57.  
  58.         for (i = 0; i < nr; i++) {
  59.                 if (hwcso[i])
  60.                         new_nr = i + 1;
  61.                 tex->samplers[i] = hwcso[i];
  62.                 tex->dirty_samplers |= (1 << i);
  63.         }
  64.  
  65.         for (; i < tex->num_samplers; i++) {
  66.                 tex->samplers[i] = NULL;
  67.                 tex->dirty_samplers |= (1 << i);
  68.         }
  69.  
  70.         tex->num_samplers = new_nr;
  71. }
  72.  
  73. static void set_sampler_views(struct fd_texture_stateobj *tex,
  74.                 unsigned nr, struct pipe_sampler_view **views)
  75. {
  76.         unsigned i;
  77.         unsigned new_nr = 0;
  78.  
  79.         for (i = 0; i < nr; i++) {
  80.                 if (views[i])
  81.                         new_nr = i + 1;
  82.                 pipe_sampler_view_reference(&tex->textures[i], views[i]);
  83.                 tex->dirty_samplers |= (1 << i);
  84.         }
  85.  
  86.         for (; i < tex->num_textures; i++) {
  87.                 pipe_sampler_view_reference(&tex->textures[i], NULL);
  88.                 tex->dirty_samplers |= (1 << i);
  89.         }
  90.  
  91.         tex->num_textures = new_nr;
  92. }
  93.  
  94. void
  95. fd_sampler_states_bind(struct pipe_context *pctx,
  96.                 unsigned shader, unsigned start,
  97.                 unsigned nr, void **hwcso)
  98. {
  99.         struct fd_context *ctx = fd_context(pctx);
  100.  
  101.         assert(start == 0);
  102.  
  103.         if (shader == PIPE_SHADER_FRAGMENT) {
  104.                 bind_sampler_states(&ctx->fragtex, nr, hwcso);
  105.                 ctx->dirty |= FD_DIRTY_FRAGTEX;
  106.         }
  107.         else if (shader == PIPE_SHADER_VERTEX) {
  108.                 bind_sampler_states(&ctx->verttex, nr, hwcso);
  109.                 ctx->dirty |= FD_DIRTY_VERTTEX;
  110.         }
  111. }
  112.  
  113.  
  114. static void
  115. fd_fragtex_set_sampler_views(struct pipe_context *pctx, unsigned nr,
  116.                 struct pipe_sampler_view **views)
  117. {
  118.         struct fd_context *ctx = fd_context(pctx);
  119.  
  120.         /* on a2xx, since there is a flat address space for textures/samplers,
  121.          * a change in # of fragment textures/samplers will trigger patching and
  122.          * re-emitting the vertex shader:
  123.          */
  124.         if (nr != ctx->fragtex.num_textures)
  125.                 ctx->dirty |= FD_DIRTY_TEXSTATE;
  126.  
  127.         set_sampler_views(&ctx->fragtex, nr, views);
  128.         ctx->dirty |= FD_DIRTY_FRAGTEX;
  129. }
  130.  
  131. static void
  132. fd_verttex_set_sampler_views(struct pipe_context *pctx, unsigned nr,
  133.                 struct pipe_sampler_view **views)
  134. {
  135.         struct fd_context *ctx = fd_context(pctx);
  136.         set_sampler_views(&ctx->verttex, nr, views);
  137.         ctx->dirty |= FD_DIRTY_VERTTEX;
  138. }
  139.  
  140. void
  141. fd_set_sampler_views(struct pipe_context *pctx, unsigned shader,
  142.                      unsigned start, unsigned nr,
  143.                      struct pipe_sampler_view **views)
  144. {
  145.    assert(start == 0);
  146.    switch (shader) {
  147.    case PIPE_SHADER_FRAGMENT:
  148.       fd_fragtex_set_sampler_views(pctx, nr, views);
  149.       break;
  150.    case PIPE_SHADER_VERTEX:
  151.       fd_verttex_set_sampler_views(pctx, nr, views);
  152.       break;
  153.    default:
  154.       ;
  155.    }
  156. }
  157.  
  158. void
  159. fd_texture_init(struct pipe_context *pctx)
  160. {
  161.         pctx->delete_sampler_state = fd_sampler_state_delete;
  162.  
  163.         pctx->sampler_view_destroy = fd_sampler_view_destroy;
  164. }
  165.