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4358 | Serge | 1 | /************************************************************************** |
2 | * |
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3 | * Copyright 2010 Luca Barbieri |
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4 | * |
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5 | * Permission is hereby granted, free of charge, to any person obtaining |
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6 | * a copy of this software and associated documentation files (the |
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7 | * "Software"), to deal in the Software without restriction, including |
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8 | * without limitation the rights to use, copy, modify, merge, publish, |
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9 | * distribute, sublicense, and/or sell copies of the Software, and to |
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10 | * permit persons to whom the Software is furnished to do so, subject to |
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11 | * the following conditions: |
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12 | * |
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13 | * The above copyright notice and this permission notice (including the |
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14 | * next paragraph) shall be included in all copies or substantial |
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15 | * portions of the Software. |
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16 | * |
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17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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18 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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19 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
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20 | * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE |
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21 | * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
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22 | * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
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23 | * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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24 | * |
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25 | **************************************************************************/ |
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26 | |||
27 | #include "u_surfaces.h" |
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28 | #include "util/u_hash_table.h" |
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29 | #include "util/u_inlines.h" |
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30 | #include "util/u_memory.h" |
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31 | |||
32 | boolean |
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33 | util_surfaces_do_get(struct util_surfaces *us, unsigned surface_struct_size, |
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34 | struct pipe_context *ctx, struct pipe_resource *pt, |
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35 | unsigned level, unsigned layer, |
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36 | struct pipe_surface **res) |
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37 | { |
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38 | struct pipe_surface *ps; |
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39 | |||
40 | if(pt->target == PIPE_TEXTURE_3D || pt->target == PIPE_TEXTURE_CUBE) |
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41 | { /* or 2D array */ |
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42 | if(!us->u.hash) |
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43 | us->u.hash = cso_hash_create(); |
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44 | |||
45 | ps = cso_hash_iter_data(cso_hash_find(us->u.hash, (layer << 8) | level)); |
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46 | } |
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47 | else |
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48 | { |
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49 | if(!us->u.array) |
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50 | us->u.array = CALLOC(pt->last_level + 1, sizeof(struct pipe_surface *)); |
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51 | ps = us->u.array[level]; |
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52 | } |
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53 | |||
54 | if(ps && ps->context == ctx) |
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55 | { |
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56 | p_atomic_inc(&ps->reference.count); |
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57 | *res = ps; |
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58 | return FALSE; |
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59 | } |
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60 | |||
61 | ps = (struct pipe_surface *)CALLOC(1, surface_struct_size); |
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62 | if(!ps) |
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63 | { |
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64 | *res = NULL; |
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65 | return FALSE; |
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66 | } |
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67 | |||
68 | pipe_surface_init(ctx, ps, pt, level, layer); |
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69 | |||
70 | if(pt->target == PIPE_TEXTURE_3D || pt->target == PIPE_TEXTURE_CUBE) |
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71 | cso_hash_insert(us->u.hash, (layer << 8) | level, ps); |
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72 | else |
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73 | us->u.array[level] = ps; |
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74 | |||
75 | *res = ps; |
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76 | return TRUE; |
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77 | } |
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78 | |||
79 | void |
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80 | util_surfaces_do_detach(struct util_surfaces *us, struct pipe_surface *ps) |
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81 | { |
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82 | struct pipe_resource *pt = ps->texture; |
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83 | if(pt->target == PIPE_TEXTURE_3D || pt->target == PIPE_TEXTURE_CUBE) |
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84 | { /* or 2D array */ |
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85 | cso_hash_erase(us->u.hash, cso_hash_find(us->u.hash, (ps->u.tex.first_layer << 8) | ps->u.tex.level)); |
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86 | } |
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87 | else |
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88 | us->u.array[ps->u.tex.level] = 0; |
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89 | } |
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90 | |||
91 | void |
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92 | util_surfaces_destroy(struct util_surfaces *us, struct pipe_resource *pt, void (*destroy_surface) (struct pipe_surface *)) |
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93 | { |
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94 | if(pt->target == PIPE_TEXTURE_3D || pt->target == PIPE_TEXTURE_CUBE) |
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95 | { /* or 2D array */ |
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96 | if(us->u.hash) |
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97 | { |
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98 | struct cso_hash_iter iter; |
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99 | iter = cso_hash_first_node(us->u.hash); |
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100 | while (!cso_hash_iter_is_null(iter)) { |
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101 | destroy_surface(cso_hash_iter_data(iter)); |
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102 | iter = cso_hash_iter_next(iter); |
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103 | } |
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104 | |||
105 | cso_hash_delete(us->u.hash); |
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106 | us->u.hash = NULL; |
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107 | } |
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108 | } |
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109 | else |
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110 | { |
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111 | if(us->u.array) |
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112 | { |
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113 | unsigned i; |
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114 | for(i = 0; i <= pt->last_level; ++i) |
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115 | { |
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116 | struct pipe_surface *ps = us->u.array[i]; |
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117 | if(ps) |
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118 | destroy_surface(ps); |
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119 | } |
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120 | FREE(us->u.array); |
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121 | us->u.array = NULL; |
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122 | } |
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123 | } |
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124 | }=>><>><>><> |