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4358 | Serge | 1 | /* |
2 | Copyright (C) Intel Corp. 2006. All Rights Reserved. |
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3 | Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to |
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4 | develop this 3D driver. |
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5 | |||
6 | Permission is hereby granted, free of charge, to any person obtaining |
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7 | a 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, sublicense, 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 | |||
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 |
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16 | portions of the Software. |
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17 | |||
18 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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19 | EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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20 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
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21 | IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE |
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22 | LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
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23 | OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
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24 | WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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25 | |||
26 | **********************************************************************/ |
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27 | /* |
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28 | * Authors: |
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29 | * Keith Whitwell |
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30 | */ |
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31 | |||
32 | |||
33 | #ifndef BRW_GS_H |
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34 | #define BRW_GS_H |
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35 | |||
36 | |||
37 | #include "brw_context.h" |
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38 | #include "brw_eu.h" |
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39 | |||
40 | #define MAX_GS_VERTS (4) |
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41 | |||
42 | struct brw_gs_prog_key { |
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43 | GLbitfield64 attrs; |
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44 | |||
45 | /** |
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46 | * Hardware primitive type being drawn, e.g. _3DPRIM_TRILIST. |
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47 | */ |
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48 | GLuint primitive:8; |
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49 | |||
50 | GLuint pv_first:1; |
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51 | GLuint need_gs_prog:1; |
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52 | |||
53 | /** |
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54 | * Number of varyings that are output to transform feedback. |
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55 | */ |
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56 | GLuint num_transform_feedback_bindings:7; /* 0-BRW_MAX_SOL_BINDINGS */ |
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57 | |||
58 | /** |
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59 | * Map from the index of a transform feedback binding table entry to the |
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60 | * gl_varying_slot that should be streamed out through that binding table |
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61 | * entry. |
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62 | */ |
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63 | unsigned char transform_feedback_bindings[BRW_MAX_SOL_BINDINGS]; |
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64 | |||
65 | /** |
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66 | * Map from the index of a transform feedback binding table entry to the |
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67 | * swizzles that should be used when streaming out data through that |
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68 | * binding table entry. |
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69 | */ |
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70 | unsigned char transform_feedback_swizzles[BRW_MAX_SOL_BINDINGS]; |
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71 | }; |
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72 | |||
73 | struct brw_gs_compile { |
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74 | struct brw_compile func; |
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75 | struct brw_gs_prog_key key; |
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76 | struct brw_gs_prog_data prog_data; |
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77 | |||
78 | struct { |
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79 | struct brw_reg R0; |
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80 | |||
81 | /** |
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82 | * Register holding streamed vertex buffer pointers -- see the Sandy |
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83 | * Bridge PRM, volume 2 part 1, section 4.4.2 (GS Thread Payload |
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84 | * [DevSNB]). These pointers are delivered in GRF 1. |
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85 | */ |
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86 | struct brw_reg SVBI; |
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87 | |||
88 | struct brw_reg vertex[MAX_GS_VERTS]; |
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89 | struct brw_reg header; |
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90 | struct brw_reg temp; |
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91 | |||
92 | /** |
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93 | * Register holding destination indices for streamed buffer writes. |
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94 | * Only used for SOL programs. |
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95 | */ |
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96 | struct brw_reg destination_indices; |
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97 | } reg; |
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98 | |||
99 | /* Number of registers used to store vertex data */ |
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100 | GLuint nr_regs; |
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101 | |||
102 | struct brw_vue_map vue_map; |
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103 | }; |
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104 | |||
105 | void brw_gs_quads( struct brw_gs_compile *c, struct brw_gs_prog_key *key ); |
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106 | void brw_gs_quad_strip( struct brw_gs_compile *c, struct brw_gs_prog_key *key ); |
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107 | void brw_gs_lines( struct brw_gs_compile *c ); |
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108 | void gen6_sol_program(struct brw_gs_compile *c, struct brw_gs_prog_key *key, |
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109 | unsigned num_verts, bool check_edge_flag); |
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110 | |||
111 | #endif |