DrawableContext *visual_2d_get_drawable_context(GF_VisualManager *visual)
{
#ifdef SKIP_CONTEXT
return NULL;
#endif
if (!visual->context) {
visual->context = NewDrawableContext();
visual->cur_context = visual->context;
drawctx_reset(visual->context);
visual->num_nodes_current_frame ++;
return visual->context;
}
// assert(visual->cur_context);
/*current context is OK*/
if (!visual->cur_context->drawable) {
/*reset next context in display list for next call*/
if (visual->cur_context->next) visual->cur_context->next->drawable = NULL;
drawctx_reset(visual->cur_context);
return visual->cur_context;
}
/*need a new context and next one is OK*/
if (visual->cur_context->next) {
visual->cur_context = visual->cur_context->next;
// assert(visual->cur_context->drawable == NULL);
/*reset next context in display list for next call*/
if (visual->cur_context->next) visual->cur_context->next->drawable = NULL;
drawctx_reset(visual->cur_context);
visual->num_nodes_current_frame ++;
return visual->cur_context;
}
/*need to create a new context*/
visual->cur_context->next = NewDrawableContext();
visual->cur_context = visual->cur_context->next;
drawctx_reset(visual->cur_context);
visual->num_nodes_current_frame ++;
//pre-allocate some contexts
#if 0
{
u32 i;
DrawableContext *last = visual->cur_context;
for (i=0; i<50; i++) {
last->next = gf_malloc(sizeof(DrawableContext));
last = last->next;
last->drawable = NULL;
last->col_mat = NULL;
}
last->next = NULL;
}
#endif
return visual->cur_context;
}
DrawableContext *VS2D_GetDrawableContext(VisualSurface2D *surf)
{
u32 i;
if (surf->alloc_contexts==surf->num_contexts) {
surf->alloc_contexts += CONTEXT_ALLOC_STEP;
surf->contexts = (DrawableContext **) realloc(surf->contexts, surf->alloc_contexts * sizeof(DrawableContext *) );
for (i=surf->num_contexts; i<surf->alloc_contexts; i++)
surf->contexts[i] = NewDrawableContext();
surf->nodes_to_draw = realloc(surf->nodes_to_draw, surf->alloc_contexts * sizeof(u32));
}
i = surf->num_contexts;
surf->num_contexts++;
drawctx_reset(surf->contexts[i]);
surf->contexts[i]->surface = surf;
return surf->contexts[i];
}
void DeleteDrawableContext(DrawableContext *ctx)
{
drawctx_reset(ctx);
if (ctx->sensors) DeleteChain(ctx->sensors);
free(ctx);
}
