1 | # Copyright (c) 2001, Stanford University
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2 | # All rights reserved.
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3 | #
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4 | # See the file LICENSE.txt for information on redistributing this software.
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5 |
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6 | from __future__ import print_function
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7 | import sys
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8 |
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9 | import apiutil
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10 |
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11 |
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12 | apiutil.CopyrightC()
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13 |
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14 | print("""/* DO NOT EDIT - AUTOMATICALLY GENERATED BY packspu_beginend.py */
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15 | #include "packspu.h"
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16 | #include "assert.h"
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17 | #include "cr_packfunctions.h"
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18 | #include "packspu_proto.h"
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19 |
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20 | void PACKSPU_APIENTRY packspu_Begin( GLenum mode )
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21 | {
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22 | CRPackBuffer *buf;
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23 | #if CR_ARB_vertex_buffer_object
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24 | GET_CONTEXT(ctx);
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25 | #else
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26 | GET_THREAD(thread);
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27 | #endif
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28 |
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29 | buf = &thread->BeginEndBuffer;
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30 |
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31 | /* XXX comparing mode >= 0 here is not needed since mode is unsigned */
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32 | CRASSERT( /*mode >= GL_POINTS && */mode <= GL_POLYGON );
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33 |
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34 | #if CR_ARB_vertex_buffer_object
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35 | {
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36 | GLboolean serverArrays = GL_FALSE;
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37 | if (ctx->clientState->extensions.ARB_vertex_buffer_object)
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38 | serverArrays = crStateUseServerArrays(&pack_spu.StateTracker);
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39 | if (serverArrays) {
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40 | CRClientState *clientState = &(ctx->clientState->client);
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41 | if (clientState->array.locked && !clientState->array.synced)
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42 | {
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43 | crPackLockArraysEXT(clientState->array.lockFirst, clientState->array.lockCount);
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44 | clientState->array.synced = GL_TRUE;
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45 | }
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46 | }
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47 | }
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48 | #endif
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49 |
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50 | crPackBegin( mode );
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51 | if ( thread->netServer.conn->Barf ) {
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52 | thread->BeginEndMode = mode;
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53 | thread->BeginEndState = -1;
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54 | if ( mode == GL_LINES || mode == GL_TRIANGLES || mode == GL_QUADS || mode == GL_POLYGON )
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55 | {
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56 | CRASSERT(!buf->pack);
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57 |
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58 | crPackReleaseBuffer( thread->packer );
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59 | buf->pack = crNetAlloc( thread->netServer.conn );
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60 | crPackInitBuffer( buf, buf->pack, thread->netServer.conn->buffer_size, thread->netServer.conn->mtu );
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61 | buf->holds_BeginEnd = 1;
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62 | buf->in_BeginEnd = 1;
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63 | crPackSetBuffer( thread->packer, buf );
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64 |
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65 | thread->BeginEndState = 0;
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66 | }
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67 | }
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68 | }
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69 |
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70 | void PACKSPU_APIENTRY packspu_End( void )
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71 | {
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72 | GET_THREAD(thread);
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73 | CRPackBuffer *buf = &thread->BeginEndBuffer;
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74 |
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75 | if ( thread->netServer.conn->Barf &&
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76 | (thread->BeginEndMode == GL_LINES
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77 | || thread->BeginEndMode == GL_TRIANGLES
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78 | || thread->BeginEndMode == GL_QUADS
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79 | || thread->BeginEndMode == GL_POLYGON ) )
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80 | {
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81 | CRASSERT(buf->pack);
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82 |
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83 | crPackReleaseBuffer( thread->packer );
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84 | crPackSetBuffer( thread->packer, &thread->normBuffer );
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85 | if ( !crPackCanHoldBuffer( buf ) )
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86 | packspuFlush( (void *) thread );
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87 |
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88 | crPackAppendBuffer( buf );
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89 | crNetFree( thread->netServer.conn, buf->pack );
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90 | buf->pack = NULL;
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91 | }
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92 |
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93 | crPackEnd();
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94 | }
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95 |
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96 | static void DoVertex( void )
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97 | {
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98 | GET_THREAD(thread);
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99 | CRPackBuffer *buf = &thread->BeginEndBuffer;
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100 | CRPackBuffer *gbuf = &thread->normBuffer;
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101 | int num_data;
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102 | int num_opcode;
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103 |
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104 | /*crDebug( "really doing Vertex" );*/
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105 | crPackReleaseBuffer( thread->packer );
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106 | num_data = buf->data_current - buf->data_start;
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107 | num_opcode = buf->opcode_start - buf->opcode_current;
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108 | crPackSetBuffer( thread->packer, gbuf );
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109 | if ( !crPackCanHoldBuffer( buf ) )
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110 | /* doesn't hold, first flush gbuf*/
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111 | packspuFlush( (void *) thread );
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112 |
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113 | crPackAppendBuffer( buf );
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114 | crPackReleaseBuffer( thread->packer );
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115 | crPackSetBuffer( thread->packer, buf );
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116 | crPackResetPointers(thread->packer);
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117 | }
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118 |
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119 | static void RunState( void )
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120 | {
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121 | GET_THREAD(thread);
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122 | if (! thread->netServer.conn->Barf ) return;
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123 | if (thread->BeginEndState == -1) return;
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124 | switch(thread->BeginEndMode) {
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125 | case GL_POLYGON:
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126 | return;
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127 | case GL_LINES:
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128 | thread->BeginEndState = (thread->BeginEndState + 1) % 2;
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129 | if (thread->BeginEndState)
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130 | return;
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131 | break;
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132 | case GL_TRIANGLES:
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133 | thread->BeginEndState = (thread->BeginEndState + 1) % 3;
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134 | if (thread->BeginEndState)
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135 | return;
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136 | break;
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137 | case GL_QUADS:
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138 | thread->BeginEndState = (thread->BeginEndState + 1) % 4;
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139 | if (thread->BeginEndState)
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140 | return;
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141 | break;
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142 | }
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143 | DoVertex();
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144 | }
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145 | """)
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146 |
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147 | keys = apiutil.GetDispatchedFunctions(sys.argv[1]+"/APIspec.txt")
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148 |
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149 | for func_name in apiutil.AllSpecials( "packspu_vertex" ):
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150 | params = apiutil.Parameters(func_name)
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151 | print('void PACKSPU_APIENTRY packspu_%s(%s)' % ( func_name, apiutil.MakeDeclarationString(params) ))
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152 | print('{')
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153 | print('\tcrPack%s(%s);' % ( func_name, apiutil.MakeCallString( params ) ))
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154 | print('\tRunState();')
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155 | print('}')
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