120 lines
2.5 KiB
C++
120 lines
2.5 KiB
C++
/* SPDX-FileCopyrightText: 2023 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup wm
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*/
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#include "BLI_listbase.h"
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#ifndef NDEBUG
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# include "BLI_threads.h"
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#endif
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#include "GPU_context.hh"
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#include "GPU_framebuffer.hh"
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#include "MEM_guardedalloc.h"
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#include "WM_api.hh"
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#include "WM_types.hh"
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#include "wm_surface.hh"
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static ListBase global_surface_list = {nullptr, nullptr};
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static wmSurface *g_drawable = nullptr;
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void wm_surfaces_iter(bContext *C, void (*cb)(bContext *C, wmSurface *))
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{
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/* Mutable iterator in case a surface is freed. */
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LISTBASE_FOREACH_MUTABLE (wmSurface *, surf, &global_surface_list) {
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cb(C, surf);
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}
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}
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static void wm_surface_do_depsgraph_fn(bContext *C, wmSurface *surface)
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{
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if (surface->do_depsgraph) {
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surface->do_depsgraph(C);
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}
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}
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void wm_surfaces_do_depsgraph(bContext *C)
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{
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wm_surfaces_iter(C, wm_surface_do_depsgraph_fn);
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}
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void wm_surface_clear_drawable()
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{
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if (g_drawable) {
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WM_system_gpu_context_release(g_drawable->system_gpu_context);
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GPU_context_active_set(nullptr);
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if (g_drawable->deactivate) {
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g_drawable->deactivate();
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}
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g_drawable = nullptr;
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}
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}
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void wm_surface_set_drawable(wmSurface *surface, bool activate)
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{
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BLI_assert(ELEM(g_drawable, nullptr, surface));
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g_drawable = surface;
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if (activate) {
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if (surface->activate) {
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surface->activate();
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}
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WM_system_gpu_context_activate(surface->system_gpu_context);
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}
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GPU_context_active_set(surface->blender_gpu_context);
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}
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void wm_surface_make_drawable(wmSurface *surface)
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{
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BLI_assert(GPU_framebuffer_active_get() == GPU_framebuffer_back_get());
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if (surface != g_drawable) {
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wm_surface_clear_drawable();
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wm_surface_set_drawable(surface, true);
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}
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}
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void wm_surface_reset_drawable()
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{
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BLI_assert(BLI_thread_is_main());
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BLI_assert(GPU_framebuffer_active_get() == GPU_framebuffer_back_get());
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if (g_drawable) {
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wm_surface_clear_drawable();
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wm_surface_set_drawable(g_drawable, true);
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}
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}
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void wm_surface_add(wmSurface *surface)
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{
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BLI_addtail(&global_surface_list, surface);
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}
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void wm_surface_remove(wmSurface *surface)
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{
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BLI_remlink(&global_surface_list, surface);
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/* Ensure GPU context is bound to free GPU resources. */
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wm_surface_make_drawable(surface);
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surface->free_data(surface);
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wm_surface_clear_drawable();
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MEM_freeN(surface);
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}
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void wm_surfaces_free()
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{
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LISTBASE_FOREACH_MUTABLE (wmSurface *, surf, &global_surface_list) {
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wm_surface_remove(surf);
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}
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BLI_assert(BLI_listbase_is_empty(&global_surface_list));
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}
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