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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 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 | } |