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Rev | Author | Line No. | Line |
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5098 | clevermous | 1 | #include "zgl.h" |
2 | #include "msghandling.h" |
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3 | |||
4 | void glopViewport(GLContext *c,GLParam *p) |
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5 | { |
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6 | int xsize,ysize,xmin,ymin,xsize_req,ysize_req; |
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7 | |||
8 | xmin=p[1].i; |
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9 | ymin=p[2].i; |
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10 | xsize=p[3].i; |
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11 | ysize=p[4].i; |
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12 | |||
13 | /* we may need to resize the zbuffer */ |
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14 | |||
15 | if (c->viewport.xmin != xmin || |
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16 | c->viewport.ymin != ymin || |
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17 | c->viewport.xsize != xsize || |
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18 | c->viewport.ysize != ysize) { |
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19 | |||
20 | xsize_req=xmin+xsize; |
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21 | ysize_req=ymin+ysize; |
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22 | |||
23 | if (c->gl_resize_viewport && |
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24 | c->gl_resize_viewport(c,&xsize_req,&ysize_req) != 0) { |
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25 | gl_fatal_error("glViewport: error while resizing display"); |
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26 | } |
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27 | |||
28 | xsize=xsize_req-xmin; |
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29 | ysize=ysize_req-ymin; |
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30 | if (xsize <= 0 || ysize <= 0) { |
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31 | gl_fatal_error("glViewport: size too small"); |
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32 | } |
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33 | |||
34 | tgl_trace("glViewport: %d %d %d %d\n", |
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35 | xmin, ymin, xsize, ysize); |
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36 | c->viewport.xmin=xmin; |
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37 | c->viewport.ymin=ymin; |
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38 | c->viewport.xsize=xsize; |
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39 | c->viewport.ysize=ysize; |
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40 | |||
41 | c->viewport.updated=1; |
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42 | } |
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43 | } |
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44 | |||
45 | void glopEnableDisable(GLContext *c,GLParam *p) |
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46 | { |
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47 | int code=p[1].i; |
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48 | int v=p[2].i; |
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49 | |||
50 | switch(code) { |
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51 | case GL_CULL_FACE: |
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52 | c->cull_face_enabled=v; |
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53 | break; |
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54 | case GL_LIGHTING: |
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55 | c->lighting_enabled=v; |
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56 | break; |
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57 | case GL_COLOR_MATERIAL: |
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58 | c->color_material_enabled=v; |
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59 | break; |
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60 | case GL_TEXTURE_2D: |
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61 | c->texture_2d_enabled=v; |
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62 | break; |
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63 | case GL_NORMALIZE: |
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64 | c->normalize_enabled=v; |
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65 | break; |
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66 | case GL_DEPTH_TEST: |
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67 | c->depth_test = v; |
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68 | break; |
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69 | case GL_POLYGON_OFFSET_FILL: |
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70 | if (v) c->offset_states |= TGL_OFFSET_FILL; |
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71 | else c->offset_states &= ~TGL_OFFSET_FILL; |
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72 | break; |
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73 | case GL_POLYGON_OFFSET_POINT: |
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74 | if (v) c->offset_states |= TGL_OFFSET_POINT; |
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75 | else c->offset_states &= ~TGL_OFFSET_POINT; |
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76 | break; |
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77 | case GL_POLYGON_OFFSET_LINE: |
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78 | if (v) c->offset_states |= TGL_OFFSET_LINE; |
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79 | else c->offset_states &= ~TGL_OFFSET_LINE; |
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80 | break; |
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81 | default: |
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82 | if (code>=GL_LIGHT0 && code |
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83 | gl_enable_disable_light(c,code - GL_LIGHT0, v); |
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84 | } else { |
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85 | /* |
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86 | fprintf(stderr,"glEnableDisable: 0x%X not supported.\n",code); |
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87 | */ |
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88 | } |
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89 | break; |
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90 | } |
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91 | } |
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92 | |||
93 | void glopShadeModel(GLContext *c,GLParam *p) |
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94 | { |
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95 | int code=p[1].i; |
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96 | c->current_shade_model=code; |
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97 | } |
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98 | |||
99 | void glopCullFace(GLContext *c,GLParam *p) |
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100 | { |
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101 | int code=p[1].i; |
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102 | c->current_cull_face=code; |
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103 | } |
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104 | |||
105 | void glopFrontFace(GLContext *c,GLParam *p) |
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106 | { |
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107 | int code=p[1].i; |
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108 | c->current_front_face=code; |
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109 | } |
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110 | |||
111 | void glopPolygonMode(GLContext *c,GLParam *p) |
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112 | { |
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113 | int face=p[1].i; |
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114 | int mode=p[2].i; |
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115 | |||
116 | switch(face) { |
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117 | case GL_BACK: |
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118 | c->polygon_mode_back=mode; |
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119 | break; |
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120 | case GL_FRONT: |
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121 | c->polygon_mode_front=mode; |
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122 | break; |
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123 | case GL_FRONT_AND_BACK: |
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124 | c->polygon_mode_front=mode; |
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125 | c->polygon_mode_back=mode; |
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126 | break; |
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127 | default: |
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128 | assert(0); |
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129 | } |
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130 | } |
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131 | |||
132 | void glopHint(GLContext *c,GLParam *p) |
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133 | { |
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134 | #if 0 |
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135 | int target=p[1].i; |
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136 | int mode=p[2].i; |
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137 | |||
138 | /* do nothing */ |
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139 | #endif |
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140 | } |
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141 | |||
142 | void |
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143 | glopPolygonOffset(GLContext *c, GLParam *p) |
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144 | { |
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145 | c->offset_factor = p[1].f; |
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146 | c->offset_units = p[2].f; |
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147 | }=>=> |