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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 *prog,
  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++;
  61.                 prog->samplers[i] = hwcso[i];
  62.                 prog->dirty_samplers |= (1 << i);
  63.         }
  64.  
  65.         for (; i < prog->num_samplers; i++) {
  66.                 prog->samplers[i] = NULL;
  67.                 prog->dirty_samplers |= (1 << i);
  68.         }
  69.  
  70.         prog->num_samplers = new_nr;
  71. }
  72.  
  73. static void set_sampler_views(struct fd_texture_stateobj *prog,
  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++;
  82.                 pipe_sampler_view_reference(&prog->textures[i], views[i]);
  83.                 prog->dirty_samplers |= (1 << i);
  84.         }
  85.  
  86.         for (; i < prog->num_textures; i++) {
  87.                 pipe_sampler_view_reference(&prog->textures[i], NULL);
  88.                 prog->dirty_samplers |= (1 << i);
  89.         }
  90.  
  91.         prog->num_textures = new_nr;
  92. }
  93.  
  94. static void
  95. fd_fragtex_sampler_states_bind(struct pipe_context *pctx,
  96.                 unsigned nr, void **hwcso)
  97. {
  98.         struct fd_context *ctx = fd_context(pctx);
  99.  
  100.         /* on a2xx, since there is a flat address space for textures/samplers,
  101.          * a change in # of fragment textures/samplers will trigger patching and
  102.          * re-emitting the vertex shader:
  103.          */
  104.         if (nr != ctx->fragtex.num_samplers)
  105.                 ctx->dirty |= FD_DIRTY_TEXSTATE;
  106.  
  107.         bind_sampler_states(&ctx->fragtex, nr, hwcso);
  108.         ctx->dirty |= FD_DIRTY_FRAGTEX;
  109. }
  110.  
  111.  
  112. static void
  113. fd_fragtex_set_sampler_views(struct pipe_context *pctx, unsigned nr,
  114.                 struct pipe_sampler_view **views)
  115. {
  116.         struct fd_context *ctx = fd_context(pctx);
  117.  
  118.         /* on a2xx, since there is a flat address space for textures/samplers,
  119.          * a change in # of fragment textures/samplers will trigger patching and
  120.          * re-emitting the vertex shader:
  121.          */
  122.         if (nr != ctx->fragtex.num_textures)
  123.                 ctx->dirty |= FD_DIRTY_TEXSTATE;
  124.  
  125.         set_sampler_views(&ctx->fragtex, nr, views);
  126.         ctx->dirty |= FD_DIRTY_FRAGTEX;
  127. }
  128.  
  129. static void
  130. fd_verttex_sampler_states_bind(struct pipe_context *pctx,
  131.                 unsigned nr, void **hwcso)
  132. {
  133.         struct fd_context *ctx = fd_context(pctx);
  134.         bind_sampler_states(&ctx->verttex, nr, hwcso);
  135.         ctx->dirty |= FD_DIRTY_VERTTEX;
  136. }
  137.  
  138.  
  139. static void
  140. fd_verttex_set_sampler_views(struct pipe_context *pctx, unsigned nr,
  141.                 struct pipe_sampler_view **views)
  142. {
  143.         struct fd_context *ctx = fd_context(pctx);
  144.         set_sampler_views(&ctx->verttex, nr, views);
  145.         ctx->dirty |= FD_DIRTY_VERTTEX;
  146. }
  147.  
  148. void
  149. fd_texture_init(struct pipe_context *pctx)
  150. {
  151.         pctx->delete_sampler_state = fd_sampler_state_delete;
  152.  
  153.         pctx->sampler_view_destroy = fd_sampler_view_destroy;
  154.  
  155.         pctx->bind_fragment_sampler_states = fd_fragtex_sampler_states_bind;
  156.         pctx->set_fragment_sampler_views = fd_fragtex_set_sampler_views;
  157.  
  158.         pctx->bind_vertex_sampler_states = fd_verttex_sampler_states_bind;
  159.         pctx->set_vertex_sampler_views = fd_verttex_set_sampler_views;
  160. }
  161.