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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. #include "svga_shader.h"
  39.  
  40.  
  41. static void *
  42. svga_create_fs_state(struct pipe_context *pipe,
  43.                      const struct pipe_shader_state *templ)
  44. {
  45.    struct svga_context *svga = svga_context(pipe);
  46.    struct svga_fragment_shader *fs;
  47.  
  48.    fs = CALLOC_STRUCT(svga_fragment_shader);
  49.    if (!fs)
  50.       return NULL;
  51.  
  52.    fs->base.tokens = tgsi_dup_tokens(templ->tokens);
  53.  
  54.    /* Collect basic info that we'll need later:
  55.     */
  56.    tgsi_scan_shader(fs->base.tokens, &fs->base.info);
  57.  
  58.    fs->base.id = svga->debug.shader_id++;
  59.  
  60.    fs->generic_inputs = svga_get_generic_inputs_mask(&fs->base.info);
  61.  
  62.    svga_remap_generics(fs->generic_inputs, fs->generic_remap_table);
  63.  
  64.    fs->draw_shader = draw_create_fragment_shader(svga->swtnl.draw, templ);
  65.  
  66.    if (SVGA_DEBUG & DEBUG_TGSI || 0) {
  67.       debug_printf("%s id: %u, inputs: %u, outputs: %u\n",
  68.                    __FUNCTION__, fs->base.id,
  69.                    fs->base.info.num_inputs, fs->base.info.num_outputs);
  70.    }
  71.  
  72.    return fs;
  73. }
  74.  
  75.  
  76. static void
  77. svga_bind_fs_state(struct pipe_context *pipe, void *shader)
  78. {
  79.    struct svga_fragment_shader *fs = (struct svga_fragment_shader *) shader;
  80.    struct svga_context *svga = svga_context(pipe);
  81.  
  82.    svga->curr.fs = fs;
  83.    svga->dirty |= SVGA_NEW_FS;
  84. }
  85.  
  86.  
  87. static void
  88. svga_delete_fs_state(struct pipe_context *pipe, void *shader)
  89. {
  90.    struct svga_context *svga = svga_context(pipe);
  91.    struct svga_fragment_shader *fs = (struct svga_fragment_shader *) shader;
  92.    struct svga_shader_variant *variant, *tmp;
  93.    enum pipe_error ret;
  94.  
  95.    svga_hwtnl_flush_retry(svga);
  96.  
  97.    draw_delete_fragment_shader(svga->swtnl.draw, fs->draw_shader);
  98.  
  99.    for (variant = fs->base.variants; variant; variant = tmp) {
  100.       tmp = variant->next;
  101.  
  102.       ret = svga_destroy_shader_variant(svga, SVGA3D_SHADERTYPE_PS, variant);
  103.       (void) ret;  /* PIPE_ERROR_ not handled yet */
  104.  
  105.       /*
  106.        * Remove stale references to this variant to ensure a new variant on the
  107.        * same address will be detected as a change.
  108.        */
  109.       if (variant == svga->state.hw_draw.fs)
  110.          svga->state.hw_draw.fs = NULL;
  111.    }
  112.  
  113.    FREE((void *)fs->base.tokens);
  114.    FREE(fs);
  115. }
  116.  
  117.  
  118. void
  119. svga_init_fs_functions(struct svga_context *svga)
  120. {
  121.    svga->pipe.create_fs_state = svga_create_fs_state;
  122.    svga->pipe.bind_fs_state = svga_bind_fs_state;
  123.    svga->pipe.delete_fs_state = svga_delete_fs_state;
  124. }
  125.