void visual_2d_texture_path_opengl_auto(GF_VisualManager *visual, GF_Path *path, GF_TextureHandler *txh, struct _drawable_context *ctx, GF_Rect *orig_bounds, GF_Matrix2D *ext_mx, GF_TraverseState *tr_state)
{
GF_Rect clipper;
u32 prev_mode = tr_state->traversing_mode;
u32 prev_type_3d = tr_state->visual->type_3d;
visual_2d_flush_hybgl_canvas(visual, txh, ctx, tr_state);
tr_state->visual->type_3d = 4;
tr_state->appear = ctx->appear;
if (ctx->col_mat) gf_cmx_copy(&tr_state->color_mat, ctx->col_mat);//
tr_state->traversing_mode=TRAVERSE_DRAW_3D;
gf_mx_from_mx2d(&tr_state->model_matrix, &ctx->transform);
clipper.x = INT2FIX(ctx->bi->clip.x);
clipper.y = INT2FIX(ctx->bi->clip.y);
clipper.width = INT2FIX(ctx->bi->clip.width);
clipper.height = INT2FIX(ctx->bi->clip.height);
visual_3d_set_clipper_2d(tr_state->visual, clipper, NULL, 1);
gf_node_allow_cyclic_traverse(ctx->drawable->node);
gf_node_traverse(ctx->drawable->node, tr_state);
tr_state->visual->type_3d=prev_type_3d;
tr_state->traversing_mode=prev_mode;
if (ctx->col_mat) gf_cmx_init(&tr_state->color_mat);
ctx->flags |= CTX_PATH_FILLED;
visual_3d_reset_clipper_2d(tr_state->visual);
}
static void TraverseLayer3D(GF_Node *node, void *rs, Bool is_destroy)
{
Bool prev_layer, changed = 0;
GF_List *oldb, *oldv, *oldf, *oldn;
GF_Rect rc;
u32 cur_lights;
GF_List *node_list_backup;
GF_BBox bbox_backup;
GF_Matrix model_backup;
GF_Matrix2D mx2d_backup;
GF_Camera *prev_cam;
GF_VisualManager *old_visual;
GF_Matrix2D *transform;
M_Layer3D *l = (M_Layer3D *)node;
Layer3DStack *st = (Layer3DStack *) gf_node_get_private(node);
GF_TraverseState *tr_state = (GF_TraverseState *) rs;
GF_TraverseState a_tr;
u32 old_type_3d;
if (is_destroy) {
DestroyLayer3D(node);
return;
}
if (st->unsupported) return;
memcpy(&a_tr, tr_state, sizeof(GF_TraverseState));
if (gf_node_dirty_get(node)) {
/*main visual in pixel metrics, use output width*/
if (tr_state->pixel_metrics && (tr_state->visual->compositor->visual==tr_state->visual)) {
st->clip.width = INT2FIX(tr_state->visual->compositor->vp_width);
st->clip.height = INT2FIX(tr_state->visual->compositor->vp_height);
} else {
visual_get_size_info(tr_state, &st->clip.width, &st->clip.height);
}
/*setup bounds in local coord system*/
if (l->size.x>=0) st->clip.width = l->size.x;
if (l->size.y>=0) st->clip.height = l->size.y;
st->clip = gf_rect_center(st->clip.width, st->clip.height);
changed = 1;
}
transform = &tr_state->transform;
/*layer3D maintains its own stacks*/
oldb = tr_state->backgrounds;
oldv = tr_state->viewpoints;
oldf = tr_state->fogs;
oldn = tr_state->navigations;
old_visual = tr_state->visual;
prev_layer = tr_state->is_layer;
prev_cam = tr_state->camera;
bbox_backup = tr_state->bbox;
switch (tr_state->traversing_mode) {
case TRAVERSE_GET_BOUNDS:
if (!tr_state->for_node) {
tr_state->bounds = st->clip;
gf_bbox_from_rect(&tr_state->bbox, &st->clip);
return;
}
case TRAVERSE_PICK:
/*layers can only be used in a 2D context*/
if (tr_state->camera && tr_state->camera->is_3D)
return;
break;
case TRAVERSE_SORT:
/*layers can only be used in a 2D context*/
if (tr_state->camera && tr_state->camera->is_3D)
return;
if (tr_state->visual->compositor->hybrid_opengl) {
DrawableContext *ctx = drawable_init_context_mpeg4(st->drawable, tr_state);
if (!ctx) goto l3d_exit;
ctx->aspect.fill_texture = &st->txh;
ctx->flags |= CTX_APP_DIRTY | CTX_IS_TRANSPARENT;
drawable_finalize_sort(ctx, tr_state, &st->clip);
return;
}
break;
case TRAVERSE_DRAW_2D:
if (tr_state->visual->compositor->hybrid_opengl) {
transform = &tr_state->ctx->transform;
break;
}
layer3d_draw_2d(node, tr_state);
return;
case TRAVERSE_DRAW_3D:
default:
return;
}
/*layer3D maintains its own stacks*/
tr_state->backgrounds = st->visual->back_stack;
tr_state->viewpoints = st->visual->view_stack;
tr_state->navigations = st->visual->navigation_stack;
tr_state->fogs = st->visual->fog_stack;
tr_state->is_layer = 1;
tr_state->camera = &st->visual->camera;
gf_mx_copy(model_backup, tr_state->model_matrix);
gf_mx2d_copy(mx2d_backup, tr_state->transform);
/*compute viewport in visual coordinate*/
rc = st->clip;
if (prev_cam) {
gf_mx_apply_rect(&tr_state->model_matrix, &rc);
if (tr_state->visual->compositor->hybrid_opengl) {
gf_mx2d_apply_rect(transform, &rc);
} else {
gf_mx_apply_rect(&prev_cam->modelview, &rc);
}
if (tr_state->camera->flags & CAM_HAS_VIEWPORT)
gf_mx_apply_rect(&prev_cam->viewport, &rc);
} else {
gf_mx2d_apply_rect(&tr_state->transform, &rc);
/*switch visual*/
tr_state->visual = st->visual;
}
/*check bindables*/
gf_mx_init(tr_state->model_matrix);
l3d_CheckBindables(node, tr_state, st->first);
if (prev_cam) gf_mx_copy(tr_state->model_matrix, model_backup);
/*drawing a layer means drawing all subelements as a whole (no depth sorting with parents)*/
if ((tr_state->traversing_mode==TRAVERSE_SORT) || (tr_state->traversing_mode==TRAVERSE_DRAW_2D)) {
u32 trav_mode = tr_state->traversing_mode;
if (gf_node_dirty_get(node)) changed = 1;
gf_node_dirty_clear(node, GF_SG_NODE_DIRTY|GF_SG_VRML_BINDABLE_DIRTY);
/*!! we were in a 2D mode, setup associated texture !!*/
if (!prev_cam) {
switch (layer3d_setup_offscreen(node, st, tr_state, rc.width, rc.height)) {
case 0:
goto l3d_exit;
case 2:
if (!changed && !(st->visual->camera.flags & CAM_IS_DIRTY) && !st->visual->camera.anim_len) {
GF_LOG(GF_LOG_DEBUG, GF_LOG_COMPOSE, ("[Layer3D] No changes found , skipping 3D draw\n"));
goto layer3d_unchanged_2d;
}
default:
break;
}
#ifdef GPAC_USE_TINYGL
if (st->tgl_ctx) ostgl_make_current(st->tgl_ctx, 0);
#endif
rc = st->vp;
/*setup GL*/
visual_3d_setup(tr_state->visual);
}
/*note that we don't backup the state as a layer3D cannot be declared in a layer3D*/
tr_state->layer3d = node;
GF_LOG(GF_LOG_DEBUG, GF_LOG_COMPOSE, ("[Layer3D] Redrawing\n"));
layer3d_setup_clip(st, tr_state, prev_cam ? 1 : 0, rc);
//this only happens in hybridGL mode
if (trav_mode==TRAVERSE_DRAW_2D) {
visual_2d_flush_hybgl_canvas(tr_state->visual, NULL, tr_state->ctx, tr_state);
}
old_type_3d = tr_state->visual->type_3d;
tr_state->visual->type_3d = 2;
visual_3d_clear_all_lights(tr_state->visual);
cur_lights = tr_state->visual->num_lights;
/*this will init projection. Note that we're binding the viewpoint in the current pixelMetrics context
even if the viewpoint was declared in an inline below
if no previous camera, we're using offscreen rendering, force clear */
visual_3d_init_draw(tr_state, prev_cam ? 1 : 2);
visual_3d_check_collisions(tr_state, NULL, l->children);
tr_state->traversing_mode = TRAVERSE_SORT;
/*shortcut node list*/
node_list_backup = tr_state->visual->alpha_nodes_to_draw;
tr_state->visual->alpha_nodes_to_draw = gf_list_new();
/*reset cull flag*/
tr_state->cull_flag = 0;
group_3d_traverse(node, (GroupingNode *)st, tr_state);
visual_3d_flush_contexts(tr_state->visual, tr_state);
gf_list_del(tr_state->visual->alpha_nodes_to_draw);
tr_state->visual->alpha_nodes_to_draw = node_list_backup;
while (cur_lights < tr_state->visual->num_lights) {
visual_3d_remove_last_light(tr_state->visual);
}
tr_state->traversing_mode = trav_mode ;
tr_state->visual->type_3d = old_type_3d;
tr_state->layer3d = NULL;
/*!! we were in a 2D mode, create drawable context!!*/
if (!prev_cam ) {
DrawableContext *ctx;
/*with TinyGL we draw directly to the offscreen buffer*/
#ifndef GPAC_USE_TINYGL
gf_sc_copy_to_stencil(&st->txh);
#else
if (st->txh.pixelformat==GF_PIXEL_RGBDS)
gf_get_tinygl_depth(&st->txh);
#endif
if (tr_state->visual->compositor->rasterizer->stencil_texture_modified)
tr_state->visual->compositor->rasterizer->stencil_texture_modified(gf_sc_texture_get_stencil(&st->txh) );
gf_sc_texture_set_stencil(&st->txh, gf_sc_texture_get_stencil(&st->txh) );
changed = 1;
layer3d_unchanged_2d:
/*restore visual*/
tr_state->visual = old_visual;
tr_state->appear = NULL;
// tr_state->camera = prev_cam;
ctx = drawable_init_context_mpeg4(st->drawable, tr_state);
if (!ctx) goto l3d_exit;
ctx->aspect.fill_texture = &st->txh;
ctx->flags |= CTX_NO_ANTIALIAS;
if (changed) ctx->flags |= CTX_APP_DIRTY;
if (st->txh.transparent) ctx->flags |= CTX_IS_TRANSPARENT;
drawable_finalize_sort(ctx, tr_state, NULL);
}
}
/*check picking - we must fall in our 2D clipper except when mvt is grabbed on layer*/
else if (!gf_node_dirty_get(node) && (tr_state->traversing_mode==TRAVERSE_PICK)) {
GF_Ray prev_r;
SFVec3f start, end;
SFVec4f res;
Fixed in_x, in_y;
Bool do_pick = 0;
if (!prev_cam) rc = st->vp;
layer3d_setup_clip(st, tr_state, prev_cam ? 1 : 0, rc);
old_type_3d = tr_state->visual->type_3d;
tr_state->visual->type_3d = 2;
if (tr_state->visual->compositor->active_layer==node) {
do_pick = (tr_state->visual->compositor->grabbed_sensor || tr_state->visual->compositor->navigation_state) ? 1 : 0;
}
if (!prev_cam || tr_state->visual->compositor->hybrid_opengl) gf_mx_from_mx2d(&tr_state->model_matrix, &tr_state->transform);
if (!do_pick && !gf_list_count(tr_state->visual->compositor->sensors))
do_pick = gf_sc_pick_in_clipper(tr_state, &st->clip);
if (!do_pick) {
tr_state->visual->type_3d = old_type_3d;
goto l3d_exit;
}
prev_r = tr_state->ray;
compositor_get_2d_plane_intersection(&tr_state->ray, &start);
gf_mx_inverse(&tr_state->model_matrix);
gf_mx_apply_vec(&tr_state->model_matrix, &start);
if (tr_state->visual->compositor->visual==tr_state->visual) {
start.x = gf_mulfix(start.x, tr_state->visual->compositor->scale_x);
start.y = gf_mulfix(start.y, tr_state->visual->compositor->scale_y);
} else if (!prev_cam) {
start.x = gf_muldiv(start.x, st->visual->camera.width, st->clip.width);
start.y = gf_muldiv(start.y, st->visual->camera.height, st->clip.height);
}
visual_3d_setup_projection(tr_state, 1);
in_x = 2 * gf_divfix(start.x, st->visual->camera.width);
in_y = 2 * gf_divfix(start.y, st->visual->camera.height);
res.x = in_x;
res.y = in_y;
res.z = -FIX_ONE;
res.q = FIX_ONE;
gf_mx_apply_vec_4x4(&st->visual->camera.unprojection, &res);
if (!res.q) {
tr_state->visual->type_3d = old_type_3d;
goto l3d_exit;
}
start.x = gf_divfix(res.x, res.q);
start.y = gf_divfix(res.y, res.q);
start.z = gf_divfix(res.z, res.q);
res.x = in_x;
res.y = in_y;
res.z = FIX_ONE;
res.q = FIX_ONE;
gf_mx_apply_vec_4x4(&st->visual->camera.unprojection, &res);
if (!res.q) {
tr_state->visual->type_3d = old_type_3d;
goto l3d_exit;
}
end.x = gf_divfix(res.x, res.q);
end.y = gf_divfix(res.y, res.q);
end.z = gf_divfix(res.z, res.q);
tr_state->ray = gf_ray(start, end);
GF_LOG(GF_LOG_DEBUG, GF_LOG_COMPOSE, ("[Layer3D] Picking: cast ray\n\tOrigin %.4f %.4f %.4f - End %.4f %.4f %.4f\n\tDir %.4f %.4f %.4f\n",
FIX2FLT(tr_state->ray.orig.x), FIX2FLT(tr_state->ray.orig.y), FIX2FLT(tr_state->ray.orig.z),
FIX2FLT(end.x), FIX2FLT(end.y), FIX2FLT(end.z),
FIX2FLT(tr_state->ray.dir.x), FIX2FLT(tr_state->ray.dir.y), FIX2FLT(tr_state->ray.dir.z)));
group_3d_traverse(node, (GroupingNode *)st, tr_state);
tr_state->ray = prev_r;
tr_state->visual->type_3d = old_type_3d;
/*store info if navigation allowed - we just override any layer3D picked first since we are picking 2D
objects*/
if (tr_state->camera->navigate_mode || (tr_state->camera->navigation_flags & NAV_ANY))
tr_state->layer3d = node;
tr_state->traversing_mode = TRAVERSE_PICK;
}
l3d_exit:
/*restore camera*/
tr_state->camera = prev_cam;
if (prev_cam) {
//remember to reload previous projection matrix
visual_3d_projection_matrix_modified(tr_state->visual);
if (tr_state->visual == old_visual) {
visual_3d_set_viewport(tr_state->visual, tr_state->camera->vp);
}
}
tr_state->visual = old_visual;
/*restore traversing state*/
tr_state->backgrounds = oldb;
tr_state->viewpoints = oldv;
tr_state->fogs = oldf;
tr_state->navigations = oldn;
tr_state->bbox = bbox_backup;
tr_state->is_layer = prev_layer;
gf_mx_copy(tr_state->model_matrix, model_backup);
gf_mx2d_copy(tr_state->transform, mx2d_backup);
/*in case we missed bindables*/
if (st->first) {
st->first = 0;
gf_node_dirty_set(node, 0, 0);
gf_sc_invalidate(tr_state->visual->compositor, NULL);
}
}
