comparison: src/scene.c
src/scene.c
- changeset 99
- ac143db979dc
- parent 96
- 9e25f080a33e
- child 100
- 5231da78831e
equal
deleted
inserted
replaced
| 98:83bec26453a8 | 99:ac143db979dc |
|---|---|
| 55 | 55 |
| 56 asc_dprintf("Destroyed scene %"PRIxPTR, (uintptr_t) scene); | 56 asc_dprintf("Destroyed scene %"PRIxPTR, (uintptr_t) scene); |
| 57 asc_scene_node_free(scene->root); | 57 asc_scene_node_free(scene->root); |
| 58 } | 58 } |
| 59 | 59 |
| 60 void asc_scene_draw(AscScene *scene, asc_recti viewport) { | 60 void asc_scene_draw(AscScene *scene) { |
| 61 if (scene->root == NULL) return; | 61 if (scene->root == NULL) return; |
| 62 | |
| 63 // if the window resized, we must update the viewport | |
| 64 if (asc_active_window->resized) { | |
| 65 if (scene->camera.viewport_update_func == NULL) { | |
| 66 // this assumes the viewport was initialized with zeros! | |
| 67 scene->camera.viewport.size = asc_active_window->dimensions; | |
| 68 } else { | |
| 69 scene->camera.viewport = scene->camera.viewport_update_func(asc_active_window->dimensions); | |
| 70 } | |
| 71 } | |
| 62 | 72 |
| 63 // create render groups | 73 // create render groups |
| 64 CxList *render_group[ASC_RENDER_GROUP_COUNT]; | 74 CxList *render_group[ASC_RENDER_GROUP_COUNT]; |
| 65 cx_for_n(i, ASC_RENDER_GROUP_COUNT) { | 75 cx_for_n(i, ASC_RENDER_GROUP_COUNT) { |
| 66 render_group[i] = cxArrayListCreateSimple(CX_STORE_POINTERS, 32); | 76 render_group[i] = cxArrayListCreateSimple(CX_STORE_POINTERS, 32); |
| 67 } | 77 } |
| 68 | 78 |
| 69 // skip the root node deliberately; we know it's just the container | 79 // update the scene graph and add nodes to their render groups |
| 70 CxTreeVisitor iter = cx_tree_visitor(scene->root, | 80 CxTreeVisitor iter = cx_tree_visitor(scene->root, |
| 71 offsetof(AscSceneNode, children), | 81 offsetof(AscSceneNode, children), |
| 72 offsetof(AscSceneNode, next) | 82 offsetof(AscSceneNode, next) |
| 73 ); | 83 ); |
| 74 cxIteratorNext(iter); | |
| 75 | |
| 76 // update the children and add them to the render groups | |
| 77 cx_foreach(AscSceneNode*, node, iter) { | 84 cx_foreach(AscSceneNode*, node, iter) { |
| 78 node->depth = iter.depth; | 85 node->depth = iter.depth; |
| 79 | 86 |
| 80 // skip hidden nodes (and all their children) | 87 // skip hidden nodes (and all their children) |
| 81 if (asc_test_flag(node->flags, ASC_SCENE_NODE_HIDDEN)) { | 88 if (asc_test_flag(node->flags, ASC_SCENE_NODE_HIDDEN)) { |
| 124 } | 131 } |
| 125 } | 132 } |
| 126 | 133 |
| 127 // set the viewport (in OpenGL we need to invert the Y axis) | 134 // set the viewport (in OpenGL we need to invert the Y axis) |
| 128 glViewport( | 135 glViewport( |
| 129 viewport.pos.x, | 136 scene->camera.viewport.pos.x, |
| 130 -viewport.pos.y, | 137 -scene->camera.viewport.pos.y, |
| 131 viewport.size.width, | 138 scene->camera.viewport.size.width, |
| 132 viewport.size.height | 139 scene->camera.viewport.size.height |
| 133 ); | 140 ); |
| 134 | 141 |
| 135 // ------------------------- | 142 // ------------------------- |
| 136 // process the render groups | 143 // process the render groups |
| 137 // ------------------------- | 144 // ------------------------- |
