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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 5098 | clevermous | 1 | #include "zgl.h" |
| 2 | |||
| 3 | GLContext *gl_ctx; |
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| 4 | |||
| 5 | |||
| 6 | void initSharedState(GLContext *c) |
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| 7 | { |
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| 8 | GLSharedState *s=&c->shared_state; |
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| 9 | s->lists=gl_zalloc(sizeof(GLList *) * MAX_DISPLAY_LISTS); |
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| 10 | s->texture_hash_table= |
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| 11 | gl_zalloc(sizeof(GLTexture *) * TEXTURE_HASH_TABLE_SIZE); |
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| 12 | |||
| 13 | alloc_texture(c,0); |
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| 14 | } |
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| 15 | |||
| 16 | void endSharedState(GLContext *c) |
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| 17 | { |
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| 18 | GLSharedState *s=&c->shared_state; |
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| 19 | int i; |
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| 20 | |||
| 21 | for(i=0;i |
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| 22 | /* TODO */ |
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| 23 | } |
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| 24 | gl_free(s->lists); |
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| 25 | |||
| 26 | gl_free(s->texture_hash_table); |
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| 27 | } |
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| 28 | |||
| 29 | |||
| 30 | void glInit(void *zbuffer1) |
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| 31 | { |
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| 32 | ZBuffer *zbuffer=(ZBuffer *)zbuffer1; |
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| 33 | GLContext *c; |
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| 34 | GLViewport *v; |
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| 35 | int i; |
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| 36 | |||
| 37 | c=gl_zalloc(sizeof(GLContext)); |
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| 38 | gl_ctx=c; |
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| 39 | |||
| 40 | c->zb=zbuffer; |
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| 41 | |||
| 42 | /* allocate GLVertex array */ |
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| 43 | c->vertex_max = POLYGON_MAX_VERTEX; |
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| 44 | c->vertex = gl_malloc(POLYGON_MAX_VERTEX*sizeof(GLVertex)); |
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| 45 | |||
| 46 | /* viewport */ |
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| 47 | v=&c->viewport; |
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| 48 | v->xmin=0; |
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| 49 | v->ymin=0; |
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| 50 | v->xsize=zbuffer->xsize; |
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| 51 | v->ysize=zbuffer->ysize; |
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| 52 | v->updated=1; |
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| 53 | |||
| 54 | /* shared state */ |
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| 55 | initSharedState(c); |
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| 56 | |||
| 57 | /* lists */ |
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| 58 | |||
| 59 | c->exec_flag=1; |
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| 60 | c->compile_flag=0; |
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| 61 | c->print_flag=0; |
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| 62 | |||
| 63 | c->in_begin=0; |
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| 64 | |||
| 65 | /* lights */ |
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| 66 | for(i=0;i |
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| 67 | GLLight *l=&c->lights[i]; |
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| 68 | l->ambient=gl_V4_New(0,0,0,1); |
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| 69 | l->diffuse=gl_V4_New(1,1,1,1); |
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| 70 | l->specular=gl_V4_New(1,1,1,1); |
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| 71 | l->position=gl_V4_New(0,0,1,0); |
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| 72 | l->norm_position=gl_V3_New(0,0,1); |
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| 73 | l->spot_direction=gl_V3_New(0,0,-1); |
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| 74 | l->norm_spot_direction=gl_V3_New(0,0,-1); |
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| 75 | l->spot_exponent=0; |
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| 76 | l->spot_cutoff=180; |
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| 77 | l->attenuation[0]=1; |
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| 78 | l->attenuation[1]=0; |
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| 79 | l->attenuation[2]=0; |
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| 80 | l->enabled=0; |
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| 81 | } |
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| 82 | c->first_light=NULL; |
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| 83 | c->ambient_light_model=gl_V4_New(0.2,0.2,0.2,1); |
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| 84 | c->local_light_model=0; |
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| 85 | c->lighting_enabled=0; |
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| 86 | c->light_model_two_side = 0; |
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| 87 | |||
| 88 | /* default materials */ |
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| 89 | for(i=0;i<2;i++) { |
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| 90 | GLMaterial *m=&c->materials[i]; |
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| 91 | m->emission=gl_V4_New(0,0,0,1); |
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| 92 | m->ambient=gl_V4_New(0.2,0.2,0.2,1); |
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| 93 | m->diffuse=gl_V4_New(0.8,0.8,0.8,1); |
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| 94 | m->specular=gl_V4_New(0,0,0,1); |
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| 95 | m->shininess=0; |
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| 96 | } |
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| 97 | c->current_color_material_mode=GL_FRONT_AND_BACK; |
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| 98 | c->current_color_material_type=GL_AMBIENT_AND_DIFFUSE; |
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| 99 | c->color_material_enabled=0; |
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| 100 | |||
| 101 | /* textures */ |
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| 102 | glInitTextures(c); |
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| 103 | |||
| 104 | /* default state */ |
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| 105 | c->current_color.X=1.0; |
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| 106 | c->current_color.Y=1.0; |
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| 107 | c->current_color.Z=1.0; |
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| 108 | c->current_color.W=1.0; |
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| 109 | c->longcurrent_color[0] = 65535; |
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| 110 | c->longcurrent_color[1] = 65535; |
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| 111 | c->longcurrent_color[2] = 65535; |
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| 112 | |||
| 113 | c->current_normal.X=1.0; |
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| 114 | c->current_normal.Y=0.0; |
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| 115 | c->current_normal.Z=0.0; |
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| 116 | c->current_normal.W=0.0; |
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| 117 | |||
| 118 | c->current_edge_flag=1; |
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| 119 | |||
| 120 | c->current_tex_coord.X=0; |
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| 121 | c->current_tex_coord.Y=0; |
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| 122 | c->current_tex_coord.Z=0; |
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| 123 | c->current_tex_coord.W=1; |
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| 124 | |||
| 125 | c->polygon_mode_front=GL_FILL; |
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| 126 | c->polygon_mode_back=GL_FILL; |
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| 127 | |||
| 128 | c->current_front_face=0; /* 0 = GL_CCW 1 = GL_CW */ |
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| 129 | c->current_cull_face=GL_BACK; |
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| 130 | c->current_shade_model=GL_SMOOTH; |
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| 131 | c->cull_face_enabled=0; |
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| 132 | |||
| 133 | /* clear */ |
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| 134 | c->clear_color.v[0]=0; |
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| 135 | c->clear_color.v[1]=0; |
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| 136 | c->clear_color.v[2]=0; |
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| 137 | c->clear_color.v[3]=0; |
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| 138 | c->clear_depth=0; |
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| 139 | |||
| 140 | /* selection */ |
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| 141 | c->render_mode=GL_RENDER; |
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| 142 | c->select_buffer=NULL; |
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| 143 | c->name_stack_size=0; |
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| 144 | |||
| 145 | /* matrix */ |
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| 146 | c->matrix_mode=0; |
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| 147 | |||
| 148 | c->matrix_stack_depth_max[0]=MAX_MODELVIEW_STACK_DEPTH; |
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| 149 | c->matrix_stack_depth_max[1]=MAX_PROJECTION_STACK_DEPTH; |
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| 150 | c->matrix_stack_depth_max[2]=MAX_TEXTURE_STACK_DEPTH; |
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| 151 | |||
| 152 | for(i=0;i<3;i++) { |
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| 153 | c->matrix_stack[i]=gl_zalloc(c->matrix_stack_depth_max[i] * sizeof(M4)); |
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| 154 | c->matrix_stack_ptr[i]=c->matrix_stack[i]; |
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| 155 | } |
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| 156 | |||
| 157 | glMatrixMode(GL_PROJECTION); |
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| 158 | glLoadIdentity(); |
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| 159 | glMatrixMode(GL_TEXTURE); |
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| 160 | glLoadIdentity(); |
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| 161 | glMatrixMode(GL_MODELVIEW); |
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| 162 | glLoadIdentity(); |
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| 163 | |||
| 164 | c->matrix_model_projection_updated=1; |
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| 165 | |||
| 166 | /* opengl 1.1 arrays */ |
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| 167 | c->client_states = 0; |
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| 168 | |||
| 169 | /* opengl 1.1 polygon offset */ |
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| 170 | c->offset_states = 0; |
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| 171 | |||
| 172 | /* clear the resize callback function pointer */ |
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| 173 | c->gl_resize_viewport = NULL; |
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| 174 | |||
| 175 | /* specular buffer */ |
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| 176 | c->specbuf_first = NULL; |
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| 177 | c->specbuf_used_counter = 0; |
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| 178 | c->specbuf_num_buffers = 0; |
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| 179 | |||
| 180 | /* depth test */ |
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| 181 | c->depth_test = 0; |
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| 182 | } |
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| 183 | |||
| 184 | void glClose(void) |
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| 185 | { |
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| 186 | GLContext *c=gl_get_context(); |
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| 187 | endSharedState(c); |
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| 188 | gl_free(c); |
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| 189 | } |