Function RenderListAlloc

engine/render/src/render/render.cpp:263–282

Allocate a buffer (from the array) with room for 'entries' entries. NOTE: Pointer might go invalid after a consecutive call to RenderListAlloc if reallocation of backing buffer happens.

    // NOTE: Pointer might go invalid after a consecutive call to RenderListAlloc if reallocation
    //       of backing buffer happens.
    RenderListEntry* RenderListAlloc(HRenderContext render_context, uint32_t entries)
    {
        dmArray<RenderListEntry> & render_list = render_context->m_RenderList;

        if (render_list.Remaining() < entries)
        {
            const uint32_t needed = entries - render_list.Remaining();
            render_list.OffsetCapacity(dmMath::Max<uint32_t>(256, needed));
            render_context->m_RenderListSortIndices.SetCapacity(render_list.Capacity());
        }

        uint32_t size = render_list.Size();
        render_list.SetSize(size + entries);

        // If we push new items after the last frustum culling, we need to reevaluate them.
        RenderListEntry* start = render_list.Begin() + size;
        memset(start, 0, entries * sizeof(RenderListEntry));

        return start;
    }

    // Submit a range of entries (pointers must be from a range allocated by RenderListAlloc, and not between two alloc calls).
    void RenderListSubmit(HRenderContext render_context, RenderListEntry *begin, RenderListEntry *end)