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143 | giacomo | 1 | /* $Id: ss_context.c,v 1.1 2003-04-29 12:46:51 giacomo Exp $ */ |
2 | |||
3 | /* |
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4 | * Mesa 3-D graphics library |
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5 | * Version: 4.1 |
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6 | * |
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7 | * Copyright (C) 1999-2002 Brian Paul All Rights Reserved. |
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8 | * |
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9 | * Permission is hereby granted, free of charge, to any person obtaining a |
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10 | * copy of this software and associated documentation files (the "Software"), |
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11 | * to deal in the Software without restriction, including without limitation |
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12 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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13 | * and/or sell copies of the Software, and to permit persons to whom the |
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14 | * Software is furnished to do so, subject to the following conditions: |
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15 | * |
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16 | * The above copyright notice and this permission notice shall be included |
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17 | * in all copies or substantial portions of the Software. |
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18 | * |
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19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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20 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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21 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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22 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
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23 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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24 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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25 | * |
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26 | * Authors: |
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27 | * Keith Whitwell <keith@tungstengraphics.com> |
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28 | */ |
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29 | |||
30 | #include "glheader.h" |
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31 | #include "imports.h" |
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32 | #include "ss_context.h" |
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33 | #include "ss_triangle.h" |
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34 | #include "ss_vb.h" |
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35 | #include "swrast_setup.h" |
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36 | #include "tnl/tnl.h" |
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37 | #include "tnl/t_context.h" |
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38 | #include "tnl/t_pipeline.h" |
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39 | |||
40 | |||
41 | #define _SWSETUP_NEW_VERTS (_NEW_RENDERMODE| \ |
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42 | _NEW_POLYGON| \ |
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43 | _NEW_LIGHT| \ |
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44 | _NEW_TEXTURE| \ |
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45 | _NEW_COLOR| \ |
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46 | _NEW_FOG| \ |
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47 | _NEW_POINT) |
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48 | |||
49 | #define _SWSETUP_NEW_RENDERINDEX (_NEW_POLYGON|_NEW_LIGHT) |
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50 | |||
51 | |||
52 | GLboolean |
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53 | _swsetup_CreateContext( GLcontext *ctx ) |
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54 | { |
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55 | TNLcontext *tnl = TNL_CONTEXT(ctx); |
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56 | SScontext *swsetup = (SScontext *)CALLOC(sizeof(SScontext)); |
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57 | |||
58 | if (!swsetup) |
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59 | return GL_FALSE; |
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60 | |||
61 | swsetup->verts = (SWvertex *) ALIGN_CALLOC( sizeof(SWvertex) * tnl->vb.Size, |
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62 | 32); |
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63 | if (!swsetup->verts) { |
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64 | FREE(swsetup); |
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65 | return GL_FALSE; |
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66 | } |
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67 | |||
68 | ctx->swsetup_context = swsetup; |
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69 | |||
70 | swsetup->NewState = ~0; |
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71 | _swsetup_vb_init( ctx ); |
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72 | _swsetup_trifuncs_init( ctx ); |
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73 | |||
74 | return GL_TRUE; |
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75 | } |
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76 | |||
77 | void |
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78 | _swsetup_DestroyContext( GLcontext *ctx ) |
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79 | { |
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80 | SScontext *swsetup = SWSETUP_CONTEXT(ctx); |
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81 | |||
82 | if (swsetup) { |
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83 | if (swsetup->verts) |
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84 | ALIGN_FREE(swsetup->verts); |
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85 | |||
86 | if (swsetup->ChanSecondaryColor.Ptr) |
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87 | ALIGN_FREE(swsetup->ChanSecondaryColor.Ptr); |
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88 | |||
89 | if (swsetup->ChanColor.Ptr) |
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90 | ALIGN_FREE(swsetup->ChanColor.Ptr); |
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91 | |||
92 | FREE(swsetup); |
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93 | ctx->swsetup_context = 0; |
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94 | } |
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95 | } |
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96 | |||
97 | static void |
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98 | _swsetup_RenderPrimitive( GLcontext *ctx, GLenum mode ) |
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99 | { |
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100 | SWSETUP_CONTEXT(ctx)->render_prim = mode; |
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101 | _swrast_render_primitive( ctx, mode ); |
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102 | } |
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103 | |||
104 | /* |
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105 | * We patch this function into tnl->Driver.Render.Start. |
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106 | * It's called when we start rendering a vertex buffer. |
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107 | */ |
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108 | static void |
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109 | _swsetup_RenderStart( GLcontext *ctx ) |
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110 | { |
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111 | SScontext *swsetup = SWSETUP_CONTEXT(ctx); |
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112 | GLuint new_state = swsetup->NewState; |
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113 | |||
114 | if (new_state & _SWSETUP_NEW_RENDERINDEX) { |
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115 | _swsetup_choose_trifuncs( ctx ); |
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116 | } |
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117 | |||
118 | if (new_state & _SWSETUP_NEW_VERTS) { |
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119 | _swsetup_choose_rastersetup_func( ctx ); |
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120 | } |
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121 | |||
122 | swsetup->NewState = 0; |
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123 | |||
124 | _swrast_render_start( ctx ); |
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125 | } |
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126 | |||
127 | /* |
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128 | * We patch this function into tnl->Driver.Render.Finish. |
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129 | * It's called when we finish rendering a vertex buffer. |
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130 | */ |
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131 | static void |
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132 | _swsetup_RenderFinish( GLcontext *ctx ) |
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133 | { |
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134 | _swrast_render_finish( ctx ); |
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135 | } |
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136 | |||
137 | void |
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138 | _swsetup_InvalidateState( GLcontext *ctx, GLuint new_state ) |
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139 | { |
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140 | SScontext *swsetup = SWSETUP_CONTEXT(ctx); |
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141 | swsetup->NewState |= new_state; |
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142 | } |
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143 | |||
144 | |||
145 | void |
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146 | _swsetup_Wakeup( GLcontext *ctx ) |
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147 | { |
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148 | TNLcontext *tnl = TNL_CONTEXT(ctx); |
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149 | tnl->Driver.Render.Start = _swsetup_RenderStart; |
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150 | tnl->Driver.Render.Finish = _swsetup_RenderFinish; |
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151 | tnl->Driver.Render.PrimitiveNotify = _swsetup_RenderPrimitive; |
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152 | /* interp */ |
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153 | /* copypv */ |
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154 | tnl->Driver.Render.ClippedPolygon = _tnl_RenderClippedPolygon; /* new */ |
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155 | tnl->Driver.Render.ClippedLine = _tnl_RenderClippedLine; /* new */ |
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156 | /* points */ |
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157 | /* line */ |
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158 | /* triangle */ |
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159 | /* quad */ |
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160 | tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts; |
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161 | tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts; |
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162 | tnl->Driver.Render.ResetLineStipple = _swrast_ResetLineStipple; |
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163 | /* buildvertices */ |
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164 | tnl->Driver.Render.Multipass = 0; |
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165 | _tnl_need_projected_coords( ctx, GL_TRUE ); |
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166 | _swsetup_InvalidateState( ctx, ~0 ); |
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167 | } |