TaskPool *BLI_task_pool_create(TaskScheduler *scheduler, void *userdata)
{
TaskPool *pool = MEM_callocN(sizeof(TaskPool), "TaskPool");
pool->scheduler = scheduler;
pool->num = 0;
pool->num_threads = 0;
pool->currently_running_tasks = 0;
pool->do_cancel = false;
BLI_mutex_init(&pool->num_mutex);
BLI_condition_init(&pool->num_cond);
pool->userdata = userdata;
BLI_mutex_init(&pool->user_mutex);
/* Ensure malloc will go fine from threads,
*
* This is needed because we could be in main thread here
* and malloc could be non-threda safe at this point because
* no other jobs are running.
*/
BLI_begin_threaded_malloc();
return pool;
}
static TaskPool *task_pool_create_ex(TaskScheduler *scheduler, void *userdata, const bool is_background)
{
TaskPool *pool = MEM_mallocN(sizeof(TaskPool), "TaskPool");
#ifndef NDEBUG
/* Assert we do not try to create a background pool from some parent task - those only work OK from main thread. */
if (is_background) {
const pthread_t thread_id = pthread_self();
int i = scheduler->num_threads;
while (i--) {
BLI_assert(!pthread_equal(scheduler->threads[i], thread_id));
}
}
#endif
pool->scheduler = scheduler;
pool->num = 0;
pool->done = 0;
pool->num_threads = 0;
pool->currently_running_tasks = 0;
pool->do_cancel = false;
pool->run_in_background = is_background;
BLI_mutex_init(&pool->num_mutex);
BLI_condition_init(&pool->num_cond);
pool->userdata = userdata;
BLI_mutex_init(&pool->user_mutex);
if (BLI_thread_is_main()) {
pool->task_mempool = scheduler->task_mempool;
}
else {
pool->task_mempool = &pool->task_mempool_local;
pool->task_mempool_local.num_tasks = 0;
}
#ifdef DEBUG_STATS
pool->mempool_stats =
MEM_callocN(sizeof(*pool->mempool_stats) * (scheduler->num_threads + 1),
"per-taskpool mempool stats");
#endif
/* Ensure malloc will go fine from threads,
*
* This is needed because we could be in main thread here
* and malloc could be non-threda safe at this point because
* no other jobs are running.
*/
BLI_begin_threaded_malloc();
return pool;
}
TaskScheduler *BLI_task_scheduler_create(int num_threads)
{
TaskScheduler *scheduler = MEM_callocN(sizeof(TaskScheduler), "TaskScheduler");
/* multiple places can use this task scheduler, sharing the same
* threads, so we keep track of the number of users. */
scheduler->do_exit = false;
BLI_listbase_clear(&scheduler->queue);
BLI_mutex_init(&scheduler->queue_mutex);
BLI_condition_init(&scheduler->queue_cond);
if (num_threads == 0) {
/* automatic number of threads will be main thread + num cores */
num_threads = BLI_system_thread_count();
}
/* main thread will also work, so we count it too */
num_threads -= 1;
/* Add background-only thread if needed. */
if (num_threads == 0) {
scheduler->background_thread_only = true;
num_threads = 1;
}
/* launch threads that will be waiting for work */
if (num_threads > 0) {
int i;
scheduler->num_threads = num_threads;
scheduler->threads = MEM_callocN(sizeof(pthread_t) * num_threads, "TaskScheduler threads");
scheduler->task_threads = MEM_callocN(sizeof(TaskThread) * num_threads, "TaskScheduler task threads");
for (i = 0; i < num_threads; i++) {
TaskThread *thread = &scheduler->task_threads[i];
thread->scheduler = scheduler;
thread->id = i + 1;
if (pthread_create(&scheduler->threads[i], NULL, task_scheduler_thread_run, thread) != 0) {
fprintf(stderr, "TaskScheduler failed to launch thread %d/%d\n", i, num_threads);
}
}
scheduler->task_mempool = MEM_callocN(sizeof(*scheduler->task_mempool) * (num_threads + 1),
"TaskScheduler task_mempool");
}
return scheduler;
}
static bool screen_opengl_render_init(bContext *C, wmOperator *op)
{
/* new render clears all callbacks */
wmWindowManager *wm = CTX_wm_manager(C);
wmWindow *win = CTX_wm_window(C);
Scene *scene = CTX_data_scene(C);
ScrArea *prevsa = CTX_wm_area(C);
ARegion *prevar = CTX_wm_region(C);
GPUOffScreen *ofs;
OGLRender *oglrender;
int sizex, sizey;
const int samples = (scene->r.mode & R_OSA) ? scene->r.osa : 0;
const bool full_samples = (samples != 0) && (scene->r.scemode & R_FULL_SAMPLE);
bool is_view_context = RNA_boolean_get(op->ptr, "view_context");
const bool is_animation = RNA_boolean_get(op->ptr, "animation");
const bool is_sequencer = RNA_boolean_get(op->ptr, "sequencer");
const bool is_write_still = RNA_boolean_get(op->ptr, "write_still");
char err_out[256] = "unknown";
if (G.background) {
BKE_report(op->reports, RPT_ERROR, "Cannot use OpenGL render in background mode (no opengl context)");
return false;
}
/* only one render job at a time */
if (WM_jobs_test(wm, scene, WM_JOB_TYPE_RENDER))
return false;
if (is_sequencer) {
is_view_context = false;
}
else {
/* ensure we have a 3d view */
if (!ED_view3d_context_activate(C)) {
RNA_boolean_set(op->ptr, "view_context", false);
is_view_context = false;
}
if (!is_view_context && scene->camera == NULL) {
BKE_report(op->reports, RPT_ERROR, "Scene has no camera");
return false;
}
}
if (!is_animation && is_write_still && BKE_imtype_is_movie(scene->r.im_format.imtype)) {
BKE_report(op->reports, RPT_ERROR, "Cannot write a single file with an animation format selected");
return false;
}
/* stop all running jobs, except screen one. currently previews frustrate Render */
WM_jobs_kill_all_except(wm, CTX_wm_screen(C));
/* create offscreen buffer */
sizex = (scene->r.size * scene->r.xsch) / 100;
sizey = (scene->r.size * scene->r.ysch) / 100;
/* corrects render size with actual size, not every card supports non-power-of-two dimensions */
ofs = GPU_offscreen_create(sizex, sizey, full_samples ? 0 : samples, GPU_HDR_NONE, GPU_OFFSCREEN_DEPTH_COMPARE, err_out);
if (!ofs) {
BKE_reportf(op->reports, RPT_ERROR, "Failed to create OpenGL off-screen buffer, %s", err_out);
return false;
}
/* allocate opengl render */
oglrender = MEM_callocN(sizeof(OGLRender), "OGLRender");
op->customdata = oglrender;
oglrender->ofs = ofs;
oglrender->ofs_samples = samples;
oglrender->ofs_full_samples = full_samples;
oglrender->sizex = sizex;
oglrender->sizey = sizey;
oglrender->bmain = CTX_data_main(C);
oglrender->scene = scene;
oglrender->cfrao = scene->r.cfra;
oglrender->write_still = is_write_still && !is_animation;
oglrender->is_animation = is_animation;
oglrender->views_len = BKE_scene_multiview_num_views_get(&scene->r);
oglrender->is_sequencer = is_sequencer;
if (is_sequencer) {
oglrender->sseq = CTX_wm_space_seq(C);
ImBuf **ibufs_arr = MEM_callocN(sizeof(*ibufs_arr) * oglrender->views_len, __func__);
oglrender->seq_data.ibufs_arr = ibufs_arr;
}
oglrender->prevsa = prevsa;
oglrender->prevar = prevar;
if (is_view_context) {
ED_view3d_context_user_region(C, &oglrender->v3d, &oglrender->ar); /* so quad view renders camera */
oglrender->rv3d = oglrender->ar->regiondata;
/* MUST be cleared on exit */
oglrender->scene->customdata_mask_modal = ED_view3d_datamask(oglrender->scene, oglrender->v3d);
/* apply immediately in case we're rendering from a script,
* running notifiers again will overwrite */
oglrender->scene->customdata_mask |= oglrender->scene->customdata_mask_modal;
if (oglrender->v3d->fx_settings.fx_flag & (GPU_FX_FLAG_DOF | GPU_FX_FLAG_SSAO)) {
oglrender->fx = GPU_fx_compositor_create();
}
}
/* create render */
oglrender->re = RE_NewRender(scene->id.name);
/* create image and image user */
oglrender->ima = BKE_image_verify_viewer(IMA_TYPE_R_RESULT, "Render Result");
BKE_image_signal(oglrender->ima, NULL, IMA_SIGNAL_FREE);
BKE_image_backup_render(oglrender->scene, oglrender->ima, true);
oglrender->iuser.scene = scene;
oglrender->iuser.ok = 1;
/* create render result */
RE_InitState(oglrender->re, NULL, &scene->r, NULL, sizex, sizey, NULL);
/* create render views */
screen_opengl_views_setup(oglrender);
/* wm vars */
oglrender->wm = wm;
oglrender->win = win;
oglrender->totvideos = 0;
oglrender->mh = NULL;
oglrender->movie_ctx_arr = NULL;
if (is_animation) {
TaskScheduler *task_scheduler = BLI_task_scheduler_get();
if (BKE_imtype_is_movie(scene->r.im_format.imtype)) {
task_scheduler = BLI_task_scheduler_create(1);
oglrender->task_scheduler = task_scheduler;
oglrender->task_pool = BLI_task_pool_create_background(task_scheduler,
oglrender);
BLI_pool_set_num_threads(oglrender->task_pool, 1);
}
else {
oglrender->task_scheduler = NULL;
oglrender->task_pool = BLI_task_pool_create(task_scheduler,
oglrender);
}
oglrender->pool_ok = true;
BLI_spin_init(&oglrender->reports_lock);
}
else {
oglrender->task_scheduler = NULL;
oglrender->task_pool = NULL;
}
oglrender->num_scheduled_frames = 0;
BLI_mutex_init(&oglrender->task_mutex);
BLI_condition_init(&oglrender->task_condition);
#ifdef DEBUG_TIME
oglrender->time_start = PIL_check_seconds_timer();
#endif
return true;
}
