workerized RA

Author: JoeOsborn

Makefile.common

@@ -1496,7 +1496,10 @@ ifeq ($(HAVE_GL_CONTEXT), 1)
    endif
 
    ifeq ($(HAVE_EMSCRIPTEN), 1)
-      OBJ += gfx/drivers_context/emscriptenegl_ctx.o
+      ifeq ($(HAVE_EGL), 1)
+        OBJ += gfx/drivers_context/emscriptenegl_ctx.o
+      endif
+      OBJ += gfx/drivers_context/emscriptenwebgl_ctx.o
    endif
 
    ifeq ($(HAVE_MALI_FBDEV), 1)

Makefile.emscripten

@@ -24,7 +24,7 @@ HAVE_SCREENSHOTS = 1
 HAVE_REWIND = 1
 HAVE_AUDIOMIXER = 1
 HAVE_CC_RESAMPLER = 1
-HAVE_EGL    = 1
+HAVE_EGL    ?= 0
 HAVE_OPENGLES = 1
 HAVE_RJPEG  = 0
 HAVE_RPNG   = 1
@@ -48,6 +48,8 @@ HAVE_CORE_INFO_CACHE = 1
 HAVE_7ZIP = 1
 HAVE_BSV_MOVIE = 1
 HAVE_AL = 1
+HAVE_WASMFS ?= 1
+HAVE_WORKER ?= 1
 
 # WARNING -- READ BEFORE ENABLING
 # The rwebaudio driver is known to have several audio bugs, such as
@@ -67,7 +69,7 @@ ifeq ($(LIBRETRO), tyrquake)
    LTO = 0
 endif
 
-PTHREAD ?= 0
+PTHREAD ?= 4
 
 MEMORY ?= 134217728
 
@@ -77,12 +79,32 @@ OBJDIR := obj-emscripten
 
 #if you compile with SDL2 flag add this Emscripten flag "-s USE_SDL=2" to LDFLAGS:
 
-LIBS    := -s USE_ZLIB=1
-LDFLAGS := -L. --no-heap-copy -s $(LIBS) -s TOTAL_MEMORY=$(MEMORY) -s NO_EXIT_RUNTIME=0 -s FULL_ES2=1 \
+LIBS    := -s USE_ZLIB=1 -lGL
+
+ifeq ($(HAVE_SDL2), 1)
+   LIBS += -s USE_SDL=2
+   DEFINES += -DHAVE_SDL2
+endif
+
+ifeq ($(HAVE_WASMFS), 1)
+   LIBS += -s WASMFS -s FORCE_FILESYSTEM=1
+endif
+
+ifeq ($(HAVE_WORKER), 1)
+   LIBS += -s PROXY_TO_PTHREAD -s USE_ES6_IMPORT_META=0 -sENVIRONMENT=worker,web
+else 
+   ifeq ($(HAVE_AL), 1)
+     ASYNC = 1
+   endif
+endif
+
+LDFLAGS := -L. --no-heap-copy $(LIBS) -s TOTAL_MEMORY=$(MEMORY) -s NO_EXIT_RUNTIME=0 -s FULL_ES2=1 \
            -s "EXPORTED_RUNTIME_METHODS=['callMain', 'FS', 'PATH', 'ERRNO_CODES']" \
            -s ALLOW_MEMORY_GROWTH=1 -s "EXPORTED_FUNCTIONS=['_main', '_malloc', '_cmd_savefiles', '_cmd_save_state', '_cmd_load_state', '_cmd_take_screenshot']" \
            -s MODULARIZE=1 -s EXPORT_ES6=1 -s EXPORT_NAME="libretro_$(subst -,_,$(LIBRETRO))" \
-           -s DISABLE_DEPRECATED_FIND_EVENT_TARGET_BEHAVIOR=1 \
+           -s DISABLE_DEPRECATED_FIND_EVENT_TARGET_BEHAVIOR=0 \
+           -s OFFSCREENCANVAS_SUPPORT -s MIN_WEBGL_VERSION=2 -s MAX_WEBGL_VERSION=2 \
+           -s OFFSCREEN_FRAMEBUFFER \
            --js-library emscripten/library_errno_codes.js \
            --js-library emscripten/library_rwebcam.js
 
@@ -93,29 +115,25 @@ endif
 ifeq ($(HAVE_AL), 1)
    LDFLAGS += -lopenal
    DEFINES += -DHAVE_AL
-   ASYNC = 1
 endif
 
 ifneq ($(PTHREAD), 0)
    LDFLAGS += -s WASM_MEM_MAX=1073741824 -pthread -s PTHREAD_POOL_SIZE=$(PTHREAD)
-   CFLAGS += -pthread
+   CFLAGS += -pthread -s SHARED_MEMORY
    HAVE_THREADS=1
 else
    HAVE_THREADS=0
 endif
 
+
 ifeq ($(ASYNC), 1)
+   DEFINES += -DEMSCRIPTEN_ASYNCIFY
    LDFLAGS += -s ASYNCIFY=$(ASYNC) -s ASYNCIFY_STACK_SIZE=8192 
    ifeq ($(DEBUG), 1)
      LDFLAGS += -s ASYNCIFY_DEBUG=1 # -s ASYNCIFY_ADVISE
    endif
 endif
 
-ifeq ($(HAVE_SDL2), 1)
-   LIBS += -s USE_SDL=2
-   DEFINES += -DHAVE_SDL2
-endif
-
 include Makefile.common
 
 CFLAGS += $(DEF_FLAGS) -Ideps -Ideps/stb
@@ -125,15 +143,15 @@ libretro :=
 ifeq ($(HAVE_STATIC_DUMMY),1)
   DEFINES += -DHAVE_STATIC_DUMMY
 else
-  libretro += libretro_emscripten.bc
+  libretro += libretro_emscripten.a
 endif
 
 ifneq ($(V), 1)
    Q := @
 endif
 
 ifeq ($(DEBUG), 1)
-   LDFLAGS += -O0 -g -gsource-map -s SAFE_HEAP=1 -s STACK_OVERFLOW_CHECK=2 -s ASSERTIONS=1
+   LDFLAGS += -O0 -g -gsource-map -s SAFE_HEAP=1 -s STACK_OVERFLOW_CHECK=2 -s ASSERTIONS=1 -GL_DEBUG=1
    CFLAGS += -O0 -g -gsource-map -s SAFE_HEAP=1 -s SAFE_HEAP_LOG=1 -s STACK_OVERFLOW_CHECK=2 -s ASSERTIONS=1
 else
    LDFLAGS += -O3 -s WASM=1

dist-scripts/dist-cores.sh

@@ -61,7 +61,7 @@ mkdir -p ../pkg/${platform}/build/rom
 # Emscripten
 elif [ $PLATFORM = "emscripten" ] ; then
 platform=emscripten
-EXT=bc
+EXT=a
 
 if [ -z "$EMSCRIPTEN" ] ; then
    echo "run this script with emmake. Ex: emmake $0"
@@ -205,9 +205,6 @@ for f in `ls -v *_${platform}.${EXT}`; do
    whole_archive=
    big_stack=
 
-   if [ $PLATFORM = "emscripten" ]; then
-      async=1 #emscripten needs async to sleep
-   fi
    if [ $name = "nxengine" ] ; then
       echo "Applying whole archive linking..."
       whole_archive="WHOLE_ARCHIVE_LINK=1"

frontend/drivers/platform_emscripten.c

@@ -158,14 +158,9 @@ int main(int argc, char *argv[])
 {
    dummyErrnoCodes();
 
-   EM_ASM({
-      specialHTMLTargets["!canvas"] = Module.canvas;
-   });
-
-   emscripten_set_canvas_element_size("!canvas", 800, 600);
-   emscripten_set_element_css_size("!canvas", 800.0, 600.0);
-   emscripten_set_main_loop(emscripten_mainloop, 0, 0);
    rarch_main(argc, argv, NULL);
+   emscripten_set_main_loop(emscripten_mainloop, 0, 0);
+   emscripten_set_main_loop_timing(EM_TIMING_RAF, 1);
 
    return 0;
 }

gfx/drivers_context/emscriptenegl_ctx.c

@@ -29,15 +29,11 @@
 #include "../../retroarch.h"
 #include "../../verbosity.h"
 
-#ifdef HAVE_EGL
 #include "../common/egl_common.h"
-#endif
 
 typedef struct
 {
-#ifdef HAVE_EGL
    egl_ctx_data_t egl;
-#endif
    int initial_width;
    int initial_height;
    unsigned fb_width;
@@ -70,7 +66,7 @@ static void gfx_ctx_emscripten_get_canvas_size(int *width, int *height)
 
    if (!is_fullscreen)
    {
-      r = emscripten_get_canvas_element_size("!canvas", width, height);
+      r = emscripten_get_canvas_element_size("#canvas", width, height);
 
       if (r != EMSCRIPTEN_RESULT_SUCCESS)
       {
@@ -105,14 +101,14 @@ static void gfx_ctx_emscripten_check_window(void *data, bool *quit,
    if (  (input_width  != emscripten->fb_width)
       || (input_height != emscripten->fb_height))
    {
-      r = emscripten_set_canvas_element_size("!canvas",
+      r = emscripten_set_canvas_element_size("#canvas",
          input_width, input_height);
 
       if (r != EMSCRIPTEN_RESULT_SUCCESS)
          RARCH_ERR("[EMSCRIPTEN/EGL]: error resizing canvas: %d\n", r);
 
       /* fix Module.requestFullscreen messing with the canvas size */
-      r = emscripten_set_element_css_size("!canvas",
+      r = emscripten_set_element_css_size("#canvas",
          (double)input_width, (double)input_height);
 
       if (r != EMSCRIPTEN_RESULT_SUCCESS)
@@ -128,12 +124,10 @@ static void gfx_ctx_emscripten_check_window(void *data, bool *quit,
 
 static void gfx_ctx_emscripten_swap_buffers(void *data)
 {
-#ifdef HAVE_EGL
    /* Doesn't really do anything in WebGL, but it might 
     * if we use WebGL workers in the future */
    emscripten_ctx_data_t *emscripten = (emscripten_ctx_data_t*)data;
    egl_swap_buffers(&emscripten->egl);
-#endif
 }
 
 static void gfx_ctx_emscripten_get_video_size(void *data,
@@ -155,16 +149,13 @@ static void gfx_ctx_emscripten_destroy(void *data)
    if (!emscripten)
       return;
 
-#ifdef HAVE_EGL
    egl_destroy(&emscripten->egl);
-#endif
 
    free(data);
 }
 
 static void *gfx_ctx_emscripten_init(void *video_driver)
 {
-#ifdef HAVE_EGL
    unsigned width, height;
    EGLint major, minor;
    EGLint n;
@@ -183,7 +174,6 @@ static void *gfx_ctx_emscripten_init(void *video_driver)
       EGL_CONTEXT_CLIENT_VERSION, 2,
       EGL_NONE
    };
-#endif
    emscripten_ctx_data_t *emscripten = (emscripten_ctx_data_t*)
       calloc(1, sizeof(*emscripten));
 
@@ -194,11 +184,10 @@ static void *gfx_ctx_emscripten_init(void *video_driver)
     * be grabbed? */
    if (     (emscripten->initial_width  == 0)
          || (emscripten->initial_height == 0))
-      emscripten_get_canvas_element_size("!canvas",
+      emscripten_get_canvas_element_size("#canvas",
          &emscripten->initial_width,
          &emscripten->initial_height);
 
-#ifdef HAVE_EGL
    if (g_egl_inited)
    {
       RARCH_LOG("[EMSCRIPTEN/EGL]: Attempted to re-initialize driver.\n");
@@ -226,7 +215,6 @@ static void *gfx_ctx_emscripten_init(void *video_driver)
    emscripten->fb_width  = width;
    emscripten->fb_height = height;
    RARCH_LOG("[EMSCRIPTEN/EGL]: Dimensions: %ux%u\n", width, height);
-#endif
 
    return emscripten;
 
@@ -251,10 +239,8 @@ static enum gfx_ctx_api gfx_ctx_emscripten_get_api(void *data) { return GFX_CTX_
 static bool gfx_ctx_emscripten_bind_api(void *data,
       enum gfx_ctx_api api, unsigned major, unsigned minor)
 {
-#ifdef HAVE_EGL
    if (api == GFX_CTX_OPENGL_ES_API)
       return egl_bind_api(EGL_OPENGL_ES_API);
-#endif
    return false;
 }
 
@@ -283,10 +269,8 @@ static bool gfx_ctx_emscripten_write_egl_image(void *data,
 
 static void gfx_ctx_emscripten_bind_hw_render(void *data, bool enable)
 {
-#ifdef HAVE_EGL
    emscripten_ctx_data_t *emscripten = (emscripten_ctx_data_t*)data;
    egl_bind_hw_render(&emscripten->egl, enable);
-#endif
 }
 
 static uint32_t gfx_ctx_emscripten_get_flags(void *data)
@@ -320,11 +304,7 @@ const gfx_ctx_driver_t gfx_ctx_emscripten = {
    false,
    gfx_ctx_emscripten_swap_buffers,
    gfx_ctx_emscripten_input_driver,
-#ifdef HAVE_EGL
    egl_get_proc_address,
-#else
-   NULL,
-#endif
    gfx_ctx_emscripten_init_egl_image_buffer,
    gfx_ctx_emscripten_write_egl_image,
    NULL,