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  1. /**********************************************************
  2.  * Copyright 2008-2009 VMware, Inc.  All rights reserved.
  3.  *
  4.  * Permission is hereby granted, free of charge, to any person
  5.  * obtaining a copy of this software and associated documentation
  6.  * files (the "Software"), to deal in the Software without
  7.  * restriction, including without limitation the rights to use, copy,
  8.  * modify, merge, publish, distribute, sublicense, and/or sell copies
  9.  * of the Software, and to permit persons to whom the Software is
  10.  * furnished to do so, subject to the following conditions:
  11.  *
  12.  * The above copyright notice and this permission notice shall be
  13.  * included in all copies or substantial portions of the Software.
  14.  *
  15.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16.  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17.  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18.  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  19.  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  20.  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21.  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22.  * SOFTWARE.
  23.  *
  24.  **********************************************************/
  25.  
  26. #include "util/u_inlines.h"
  27. #include "util/u_math.h"
  28. #include "util/u_memory.h"
  29. #include "util/u_bitmask.h"
  30. #include "tgsi/tgsi_parse.h"
  31. #include "draw/draw_context.h"
  32.  
  33. #include "svga_context.h"
  34. #include "svga_tgsi.h"
  35. #include "svga_hw_reg.h"
  36. #include "svga_cmd.h"
  37. #include "svga_debug.h"
  38.  
  39.  
  40. static void *
  41. svga_create_fs_state(struct pipe_context *pipe,
  42.                      const struct pipe_shader_state *templ)
  43. {
  44.    struct svga_context *svga = svga_context(pipe);
  45.    struct svga_fragment_shader *fs;
  46.  
  47.    fs = CALLOC_STRUCT(svga_fragment_shader);
  48.    if (!fs)
  49.       return NULL;
  50.  
  51.    fs->base.tokens = tgsi_dup_tokens(templ->tokens);
  52.  
  53.    /* Collect basic info that we'll need later:
  54.     */
  55.    tgsi_scan_shader(fs->base.tokens, &fs->base.info);
  56.  
  57.    fs->base.id = svga->debug.shader_id++;
  58.  
  59.    fs->generic_inputs = svga_get_generic_inputs_mask(&fs->base.info);
  60.  
  61.    svga_remap_generics(fs->generic_inputs, fs->generic_remap_table);
  62.  
  63.    fs->draw_shader = draw_create_fragment_shader(svga->swtnl.draw, templ);
  64.  
  65.    if (SVGA_DEBUG & DEBUG_TGSI || 0) {
  66.       debug_printf("%s id: %u, inputs: %u, outputs: %u\n",
  67.                    __FUNCTION__, fs->base.id,
  68.                    fs->base.info.num_inputs, fs->base.info.num_outputs);
  69.    }
  70.  
  71.    return fs;
  72. }
  73.  
  74.  
  75. static void
  76. svga_bind_fs_state(struct pipe_context *pipe, void *shader)
  77. {
  78.    struct svga_fragment_shader *fs = (struct svga_fragment_shader *) shader;
  79.    struct svga_context *svga = svga_context(pipe);
  80.  
  81.    svga->curr.fs = fs;
  82.    svga->dirty |= SVGA_NEW_FS;
  83. }
  84.  
  85.  
  86. static void
  87. svga_delete_fs_state(struct pipe_context *pipe, void *shader)
  88. {
  89.    struct svga_context *svga = svga_context(pipe);
  90.    struct svga_fragment_shader *fs = (struct svga_fragment_shader *) shader;
  91.    struct svga_shader_result *result, *tmp;
  92.    enum pipe_error ret;
  93.  
  94.    svga_hwtnl_flush_retry(svga);
  95.  
  96.    draw_delete_fragment_shader(svga->swtnl.draw, fs->draw_shader);
  97.  
  98.    for (result = fs->base.results; result; result = tmp) {
  99.       tmp = result->next;
  100.  
  101.       ret = SVGA3D_DestroyShader(svga->swc, result->id, SVGA3D_SHADERTYPE_PS);
  102.       if (ret != PIPE_OK) {
  103.          svga_context_flush(svga, NULL);
  104.          ret = SVGA3D_DestroyShader(svga->swc, result->id,
  105.                                     SVGA3D_SHADERTYPE_PS);
  106.          assert(ret == PIPE_OK);
  107.       }
  108.  
  109.       util_bitmask_clear(svga->fs_bm, result->id);
  110.  
  111.       svga_destroy_shader_result(result);
  112.  
  113.       /*
  114.        * Remove stale references to this result to ensure a new result on the
  115.        * same address will be detected as a change.
  116.        */
  117.       if (result == svga->state.hw_draw.fs)
  118.          svga->state.hw_draw.fs = NULL;
  119.    }
  120.  
  121.    FREE((void *)fs->base.tokens);
  122.    FREE(fs);
  123. }
  124.  
  125.  
  126. void
  127. svga_init_fs_functions(struct svga_context *svga)
  128. {
  129.    svga->pipe.create_fs_state = svga_create_fs_state;
  130.    svga->pipe.bind_fs_state = svga_bind_fs_state;
  131.    svga->pipe.delete_fs_state = svga_delete_fs_state;
  132. }
  133.