diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/Makefile.am | 2 | ||||
| -rw-r--r-- | src/modules/Makefile.am | 2 | ||||
| -rw-r--r-- | src/modules/montage/Makefile.am | 3 | ||||
| -rw-r--r-- | src/modules/montage/montage.c | 168 | ||||
| -rw-r--r-- | src/rototiller.c | 2 |
5 files changed, 175 insertions, 2 deletions
diff --git a/src/Makefile.am b/src/Makefile.am index 48b0a4c..2501c95 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -4,4 +4,4 @@ rototiller_SOURCES = fb.c fb.h fps.c fps.h rototiller.c rototiller.h sdl_fb.c se if ENABLE_DRM rototiller_SOURCES += drm_fb.c endif -rototiller_LDADD = modules/flui2d/libflui2d.a modules/julia/libjulia.a modules/pixbounce/libpixbounce.a modules/plasma/libplasma.a modules/ray/libray.a modules/roto/libroto.a modules/rtv/librtv.a modules/snow/libsnow.a modules/sparkler/libsparkler.a modules/stars/libstars.a modules/submit/libsubmit.a modules/swab/libswab.a libs/grid/libgrid.a libs/ray/libray.a libs/txt/libtxt.a libs/ascii/libascii.a libs/din/libdin.a -lm +rototiller_LDADD = modules/flui2d/libflui2d.a modules/julia/libjulia.a modules/montage/libmontage.a modules/pixbounce/libpixbounce.a modules/plasma/libplasma.a modules/ray/libray.a modules/roto/libroto.a modules/rtv/librtv.a modules/snow/libsnow.a modules/sparkler/libsparkler.a modules/stars/libstars.a modules/submit/libsubmit.a modules/swab/libswab.a libs/grid/libgrid.a libs/ray/libray.a libs/txt/libtxt.a libs/ascii/libascii.a libs/din/libdin.a -lm diff --git a/src/modules/Makefile.am b/src/modules/Makefile.am index 0ab81b7..1622814 100644 --- a/src/modules/Makefile.am +++ b/src/modules/Makefile.am @@ -1 +1 @@ -SUBDIRS = flui2d julia pixbounce plasma ray roto rtv snow sparkler stars submit swab +SUBDIRS = flui2d julia montage pixbounce plasma ray roto rtv snow sparkler stars submit swab diff --git a/src/modules/montage/Makefile.am b/src/modules/montage/Makefile.am new file mode 100644 index 0000000..7465510 --- /dev/null +++ b/src/modules/montage/Makefile.am @@ -0,0 +1,3 @@ +noinst_LIBRARIES = libmontage.a +libmontage_a_SOURCES = montage.c +libmontage_a_CPPFLAGS = -I@top_srcdir@/src -I@top_srcdir@/src/libs diff --git a/src/modules/montage/montage.c b/src/modules/montage/montage.c new file mode 100644 index 0000000..068c6e0 --- /dev/null +++ b/src/modules/montage/montage.c @@ -0,0 +1,168 @@ +#include <math.h> +#include <stdlib.h> +#include <time.h> + +#include "fb.h" +#include "rototiller.h" +#include "settings.h" +#include "util.h" + +/* Copyright (C) 2019 - Vito Caputo <vcaputo@pengaru.com> */ + +typedef struct montage_context_t { + const rototiller_module_t **modules; + const rototiller_module_t *rtv_module; + void **contexts; + size_t n_modules; + unsigned n_cpus; +} montage_context_t; + +static void setup_next_module(montage_context_t *ctxt); +static void * montage_create_context(unsigned num_cpus); +static void montage_destroy_context(void *context); +static void montage_prepare_frame(void *context, unsigned n_cpus, fb_fragment_t *fragment, rototiller_fragmenter_t *res_fragmenter); +static void montage_render_fragment(void *context, unsigned cpu, fb_fragment_t *fragment); + + +rototiller_module_t montage_module = { + .create_context = montage_create_context, + .destroy_context = montage_destroy_context, + .prepare_frame = montage_prepare_frame, + .render_fragment = montage_render_fragment, + .name = "montage", + .description = "Rototiller montage", + .author = "Vito Caputo <vcaputo@pengaru.com>", + .license = "GPLv2", +}; + + +static int skip_module(montage_context_t *ctxt, const rototiller_module_t *module) +{ + /* prevent recursion */ + if (module == &montage_module) + return 1; + + /* also prevents recursion, as rtv could run montage... */ + if (module == ctxt->rtv_module) + return 1; + + return 0; +} + + +static void * montage_create_context(unsigned num_cpus) +{ + montage_context_t *ctxt = calloc(1, sizeof(montage_context_t)); + + ctxt->n_cpus = num_cpus; + rototiller_get_modules(&ctxt->modules, &ctxt->n_modules); + + ctxt->contexts = calloc(ctxt->n_modules, sizeof(void *)); + if (!ctxt->contexts) { + free(ctxt); + + return NULL; + } + + ctxt->rtv_module = rototiller_lookup_module("rtv"); + + for (int i = 0; i < ctxt->n_modules; i++) { + const rototiller_module_t *module = ctxt->modules[i]; + + if (skip_module(ctxt, module)) + continue; + + if (module->create_context) /* FIXME errors */ + ctxt->contexts[i] = module->create_context(num_cpus); + } + + return ctxt; +} + + +static void montage_destroy_context(void *context) +{ + montage_context_t *ctxt = context; + + for (int i = 0; i < ctxt->n_modules; i++) { + const rototiller_module_t *module = ctxt->modules[i]; + + if (skip_module(ctxt, module)) + continue; + + if (!ctxt->contexts[i]) + continue; + + module->destroy_context(ctxt->contexts[i]); + } + + free(context); +} + + +/* The fragmenter in montage is serving double-duty: + * 1. it divides the frame into subfragments for threaded rendering + * 2. it determines which modules will be rendered where via fragment->number + */ +static int montage_fragmenter(void *context, const fb_fragment_t *fragment, unsigned number, fb_fragment_t *res_fragment) +{ + montage_context_t *ctxt = context; + float root = sqrtf((float)ctxt->n_modules); + int ret; + + ret = fb_fragment_tile_single(fragment, fragment->frame_height / root, number, res_fragment); + if (!ret) + return 0; + + if (number >= ctxt->n_modules) + return 0; + + /* as these tiles are frames of their own rather than subfragments, override these values */ + res_fragment->x = res_fragment->y = 0; + res_fragment->frame_width = res_fragment->width; + res_fragment->frame_height = res_fragment->height; + + return ret; +} + + + +static void montage_prepare_frame(void *context, unsigned n_cpus, fb_fragment_t *fragment, rototiller_fragmenter_t *res_fragmenter) +{ + montage_context_t *ctxt = context; + + *res_fragmenter = montage_fragmenter; +} + + +static void montage_render_fragment(void *context, unsigned cpu, fb_fragment_t *fragment) +{ + montage_context_t *ctxt = context; + const rototiller_module_t *module = ctxt->modules[fragment->number]; + + if (skip_module(ctxt, module)) + return; + + /* since we're *already* in a threaded render of tiles, no further + * threading within the montage tiles is desirable, so the per-module + * render is done explicitly serially here in an open-coded ad-hoc + * fashion for now. FIXME TODO: move this into rototiller.c + */ + if (module->prepare_frame) { + rototiller_fragmenter_t unused; + + /* XXX FIXME: ignoring the fragmenter here is a violation of the module API, + * rototiller.c should have a module render interface with explicit non-threading + * that still does all the necessary fragmenting as needed. + * + * Today, I can get away with this, because montage is the only module that's + * sensitive to this aspect of the API and it skips itself. + */ + + module->prepare_frame(ctxt->contexts[fragment->number], 1, fragment, &unused); + } + + if (module->render_fragment) + module->render_fragment(ctxt->contexts[fragment->number], 0, fragment); +} + diff --git a/src/rototiller.c b/src/rototiller.c index 4d6bd79..42b9007 100644 --- a/src/rototiller.c +++ b/src/rototiller.c @@ -34,6 +34,7 @@ fb_ops_t *fb_ops; extern rototiller_module_t flui2d_module; extern rototiller_module_t julia_module; +extern rototiller_module_t montage_module; extern rototiller_module_t pixbounce_module; extern rototiller_module_t plasma_module; extern rototiller_module_t ray_module; @@ -48,6 +49,7 @@ extern rototiller_module_t swab_module; static const rototiller_module_t *modules[] = { &flui2d_module, &julia_module, + &montage_module, &pixbounce_module, &plasma_module, &ray_module, |