Commit: 46bfdb48a19335d7db2114c697ccca05cb0011af
Author: Clément Foucault
Date: Wed Apr 25 17:43:08 2018 +0200
Branches: blender2.8
https://developer.blender.org/rB46bfdb48a19335d7db2114c697ccca05cb0011af
WM: Add GHOST lazy init for background mode.
This allows for background rendering with EEVEE and other opengl render
engine.
I've only tested it on Linux for the moment so I can't say about other
platforms.
We do lazy init because we cannot assume we will need Ghost for rendering
before having parsed all arguments and we cannot know if a script will
trigger rendering. This is also because it currently does not work without
any display server (blender will crash).
===================================================================
M source/blender/draw/intern/draw_manager.c
M source/blender/gpu/intern/gpu_init_exit.c
M source/blender/windowmanager/WM_api.h
M source/blender/windowmanager/intern/wm_init_exit.c
M source/blender/windowmanager/intern/wm_window.c
===================================================================
diff --git a/source/blender/draw/intern/draw_manager.c
b/source/blender/draw/intern/draw_manager.c
index 0e66fff943f..6550fa19105 100644
--- a/source/blender/draw/intern/draw_manager.c
+++ b/source/blender/draw/intern/draw_manager.c
@@ -1361,6 +1361,11 @@ void DRW_render_to_image(RenderEngine *engine, struct
Depsgraph *depsgraph)
DrawEngineType *draw_engine_type = engine_type->draw_engine;
RenderData *r = &scene->r;
Render *render = engine->re;
+
+ if (G.background && DST.ogl_context == NULL) {
+ WM_init_opengl();
+ }
+
/* Changing Context */
DRW_opengl_context_enable();
/* IMPORTANT: We dont support immediate mode in render mode!
@@ -2049,13 +2054,16 @@ void DRW_opengl_context_create(void)
BLI_assert(DST.ogl_context == NULL); /* Ensure it's called once */
BLI_mutex_init(&DST.ogl_context_mutex);
-
- immDeactivate();
+ if (!G.background) {
+ immDeactivate();
+ }
/* This changes the active context. */
DST.ogl_context = WM_opengl_context_create();
/* Be sure to create gawain.context too. */
DST.gwn_context = GWN_context_create();
- immActivate();
+ if (!G.background) {
+ immActivate();
+ }
/* Set default Blender OpenGL state */
GPU_state_init();
/* So we activate the window's one afterwards. */
@@ -2082,12 +2090,16 @@ void DRW_opengl_context_enable(void)
* multiple threads. */
BLI_mutex_lock(&DST.ogl_context_mutex);
if (BLI_thread_is_main()) {
- immDeactivate();
+ if (!G.background) {
+ immDeactivate();
+ }
}
WM_opengl_context_activate(DST.ogl_context);
GWN_context_active_set(DST.gwn_context);
if (BLI_thread_is_main()) {
- immActivate();
+ if (!G.background) {
+ immActivate();
+ }
BLF_batch_reset();
}
}
diff --git a/source/blender/gpu/intern/gpu_init_exit.c
b/source/blender/gpu/intern/gpu_init_exit.c
index 5015d7c2372..c2f14687ff5 100644
--- a/source/blender/gpu/intern/gpu_init_exit.c
+++ b/source/blender/gpu/intern/gpu_init_exit.c
@@ -63,7 +63,9 @@ void GPU_init(void)
gpu_batch_init();
- immInit();
+ if (!G.background) {
+ immInit();
+ }
GPU_pbvh_fix_linking();
}
@@ -72,7 +74,9 @@ void GPU_init(void)
void GPU_exit(void)
{
- immDestroy();
+ if (!G.background) {
+ immDestroy();
+ }
gpu_batch_exit();
diff --git a/source/blender/windowmanager/WM_api.h
b/source/blender/windowmanager/WM_api.h
index 652cdac6315..de5ce6d211d 100644
--- a/source/blender/windowmanager/WM_api.h
+++ b/source/blender/windowmanager/WM_api.h
@@ -93,6 +93,7 @@ void WM_main (struct
bContext *C) ATTR_NORETURN;
void WM_init_splash (struct bContext *C);
+void WM_init_opengl (void);
void WM_check (struct bContext *C);
diff --git a/source/blender/windowmanager/intern/wm_init_exit.c
b/source/blender/windowmanager/intern/wm_init_exit.c
index 3cf2575cfc7..d452c1638c8 100644
--- a/source/blender/windowmanager/intern/wm_init_exit.c
+++ b/source/blender/windowmanager/intern/wm_init_exit.c
@@ -154,6 +154,40 @@ static void wm_free_reports(bContext *C)
bool wm_start_with_console = false; /* used in creator.c */
+/**
+ * Since we cannot know in advance if we will require the draw manager
+ * context when starting blender in background mode (specially true with
+ * scripts) we deferre the ghost initialization the most as possible
+ * so that it does not break anything that can run in headless mode (as in
+ * without display server attached).
+ **/
+static bool opengl_is_init = false;
+
+void WM_init_opengl(void)
+{
+ /* must be called only once */
+ BLI_assert(opengl_is_init == false);
+
+ if (G.background) {
+ /* Ghost is still not init elsewhere in background mode. */
+ wm_ghost_init(NULL);
+ }
+
+ /* Needs to be first to have an ogl context bound. */
+ DRW_opengl_context_create();
+
+ GPU_init();
+ GPU_set_mipmap(true);
+ GPU_set_linear_mipmap(true);
+ GPU_set_anisotropic(U.anisotropic_filter);
+ GPU_set_gpu_mipmapping(U.use_gpu_mipmap);
+
+#ifdef WITH_OPENSUBDIV
+ BKE_subsurf_osd_init();
+#endif
+ opengl_is_init = true;
+}
+
/* only called once, for startup */
void WM_init(bContext *C, int argc, const char **argv)
{
@@ -162,6 +196,7 @@ void WM_init(bContext *C, int argc, const char **argv)
wm_ghost_init(C); /* note: it assigns C to ghost! */
wm_init_cursor_data();
}
+
GHOST_CreateSystemPaths();
BKE_addon_pref_type_init();
@@ -200,7 +235,6 @@ void WM_init(bContext *C, int argc, const char **argv)
/* get the default database, plus a wm */
wm_homefile_read(C, NULL, G.factory_startup, false, true, NULL, NULL);
-
BLT_lang_set(NULL);
@@ -210,18 +244,7 @@ void WM_init(bContext *C, int argc, const char **argv)
/* sets 3D mouse deadzone */
WM_ndof_deadzone_set(U.ndof_deadzone);
#endif
- DRW_opengl_context_create();
-
- GPU_init();
-
- GPU_set_mipmap(true);
- GPU_set_linear_mipmap(true);
- GPU_set_anisotropic(U.anisotropic_filter);
- GPU_set_gpu_mipmapping(U.use_gpu_mipmap);
-
-#ifdef WITH_OPENSUBDIV
- BKE_subsurf_osd_init();
-#endif
+ WM_init_opengl();
UI_init();
}
@@ -456,7 +479,7 @@ void WM_exit_ext(bContext *C, const bool do_python)
COM_deinitialize();
#endif
- if (!G.background) {
+ if (opengl_is_init) {
#ifdef WITH_OPENSUBDIV
BKE_subsurf_osd_cleanup();
#endif
@@ -483,7 +506,7 @@ void WM_exit_ext(bContext *C, const bool do_python)
BLF_exit();
- if (!G.background) {
+ if (opengl_is_init) {
GPU_pass_cache_free();
DRW_opengl_context_destroy();
}
diff --git a/source/blender/windowmanager/intern/wm_window.c
b/source/blender/windowmanager/intern/wm_window.c
index 85c2b5cdf7b..4efca37b921 100644
--- a/source/blender/windowmanager/intern/wm_window.c
+++ b/source/blender/windowmanager/intern/wm_window.c
@@ -1735,13 +1735,22 @@ void wm_window_testbreak(void)
/* **************** init ********************** */
+/* bContext can be null in background mode because we don't
+ * need to event handling. */
void wm_ghost_init(bContext *C)
{
if (!g_system) {
- GHOST_EventConsumerHandle consumer =
GHOST_CreateEventConsumer(ghost_event_proc, C);
+ GHOST_EventConsumerHandle consumer;
+
+ if (C != NULL) {
+ consumer = GHOST_CreateEventConsumer(ghost_event_proc,
C);
+ }
g_system = GHOST_CreateSystem();
- GHOST_AddEventConsumer(g_system, consumer);
+
+ if (C != NULL) {
+ GHOST_AddEventConsumer(g_system, consumer);
+ }
if (wm_init_state.native_pixels) {
GHOST_UseNativePixels();
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