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4358 | Serge | 1 | /************************************************************************** |
2 | * |
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3 | * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. |
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4 | * All Rights Reserved. |
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5 | * |
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6 | * Permission is hereby granted, free of charge, to any person obtaining a |
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7 | * copy of this software and associated documentation files (the |
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8 | * "Software"), to deal in the Software without restriction, including |
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9 | * without limitation the rights to use, copy, modify, merge, publish, |
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10 | * distribute, sub license, and/or sell copies of the Software, and to |
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11 | * permit persons to whom the Software is furnished to do so, subject to |
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12 | * the following conditions: |
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13 | * |
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14 | * The above copyright notice and this permission notice (including the |
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15 | * next paragraph) shall be included in all copies or substantial portions |
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16 | * of the Software. |
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17 | * |
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18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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19 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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20 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
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21 | * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR |
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22 | * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
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23 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
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24 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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25 | * |
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26 | **************************************************************************/ |
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27 | |||
28 | #ifndef U_DRAW_H |
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29 | #define U_DRAW_H |
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30 | |||
31 | |||
32 | #include "pipe/p_compiler.h" |
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33 | #include "pipe/p_context.h" |
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34 | #include "pipe/p_state.h" |
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35 | |||
36 | |||
37 | #ifdef __cplusplus |
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38 | extern "C" { |
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39 | #endif |
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40 | |||
41 | |||
42 | static INLINE void |
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43 | util_draw_init_info(struct pipe_draw_info *info) |
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44 | { |
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45 | memset(info, 0, sizeof(*info)); |
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46 | info->instance_count = 1; |
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47 | info->max_index = 0xffffffff; |
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48 | } |
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49 | |||
50 | |||
51 | static INLINE void |
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52 | util_draw_arrays(struct pipe_context *pipe, uint mode, uint start, uint count) |
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53 | { |
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54 | struct pipe_draw_info info; |
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55 | |||
56 | util_draw_init_info(&info); |
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57 | info.mode = mode; |
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58 | info.start = start; |
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59 | info.count = count; |
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60 | info.min_index = start; |
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61 | info.max_index = start + count - 1; |
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62 | |||
63 | pipe->draw_vbo(pipe, &info); |
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64 | } |
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65 | |||
66 | static INLINE void |
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67 | util_draw_elements(struct pipe_context *pipe, int index_bias, |
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68 | uint mode, uint start, uint count) |
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69 | { |
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70 | struct pipe_draw_info info; |
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71 | |||
72 | util_draw_init_info(&info); |
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73 | info.indexed = TRUE; |
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74 | info.mode = mode; |
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75 | info.start = start; |
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76 | info.count = count; |
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77 | info.index_bias = index_bias; |
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78 | |||
79 | pipe->draw_vbo(pipe, &info); |
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80 | } |
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81 | |||
82 | static INLINE void |
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83 | util_draw_arrays_instanced(struct pipe_context *pipe, |
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84 | uint mode, uint start, uint count, |
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85 | uint start_instance, |
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86 | uint instance_count) |
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87 | { |
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88 | struct pipe_draw_info info; |
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89 | |||
90 | util_draw_init_info(&info); |
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91 | info.mode = mode; |
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92 | info.start = start; |
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93 | info.count = count; |
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94 | info.start_instance = start_instance; |
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95 | info.instance_count = instance_count; |
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96 | info.min_index = start; |
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97 | info.max_index = start + count - 1; |
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98 | |||
99 | pipe->draw_vbo(pipe, &info); |
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100 | } |
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101 | |||
102 | static INLINE void |
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103 | util_draw_elements_instanced(struct pipe_context *pipe, |
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104 | int index_bias, |
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105 | uint mode, uint start, uint count, |
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106 | uint start_instance, |
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107 | uint instance_count) |
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108 | { |
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109 | struct pipe_draw_info info; |
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110 | |||
111 | util_draw_init_info(&info); |
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112 | info.indexed = TRUE; |
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113 | info.mode = mode; |
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114 | info.start = start; |
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115 | info.count = count; |
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116 | info.index_bias = index_bias; |
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117 | info.start_instance = start_instance; |
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118 | info.instance_count = instance_count; |
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119 | |||
120 | pipe->draw_vbo(pipe, &info); |
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121 | } |
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122 | |||
123 | static INLINE void |
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124 | util_draw_range_elements(struct pipe_context *pipe, |
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125 | int index_bias, |
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126 | uint min_index, |
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127 | uint max_index, |
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128 | uint mode, uint start, uint count) |
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129 | { |
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130 | struct pipe_draw_info info; |
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131 | |||
132 | util_draw_init_info(&info); |
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133 | info.indexed = TRUE; |
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134 | info.mode = mode; |
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135 | info.start = start; |
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136 | info.count = count; |
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137 | info.index_bias = index_bias; |
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138 | info.min_index = min_index; |
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139 | info.max_index = max_index; |
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140 | |||
141 | pipe->draw_vbo(pipe, &info); |
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142 | } |
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143 | |||
144 | |||
145 | unsigned |
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146 | util_draw_max_index( |
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147 | const struct pipe_vertex_buffer *vertex_buffers, |
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148 | const struct pipe_vertex_element *vertex_elements, |
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149 | unsigned nr_vertex_elements, |
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150 | const struct pipe_draw_info *info); |
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151 | |||
152 | |||
153 | #ifdef __cplusplus |
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154 | } |
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155 | #endif |
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156 | |||
157 | #endif /* !U_DRAW_H */ |