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Merge pull request #303 from libretro/emscripten

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Emscripten/Javascript port
This commit is contained in:
Hans-Kristian Arntzen 2013-09-11 01:01:29 -07:00
commit 7d90ff4011
20 changed files with 1282 additions and 0 deletions
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159
Makefile.emscripten Normal file
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@ -0,0 +1,159 @@
TARGET = retroarch.js
OBJ = frontend/frontend_emscripten.o \
retroarch.o \
file.o \
file_path.o \
driver.o \
conf/config_file.o \
settings.o \
hash.o \
dynamic.o \
dynamic_dummy.o \
message.o \
rewind.o \
movie.o \
gfx/gfx_common.o \
input/input_common.o \
input/rwebinput_input.o \
core_options.o \
patch.o \
compat/compat.o \
compat/rxml/rxml.o \
screenshot.o \
cheats.o \
audio/utils.o \
audio/rwebaudio.o \
input/overlay.o \
fifo_buffer.o \
gfx/scaler/scaler.o \
gfx/scaler/pixconv.o \
gfx/scaler/scaler_int.o \
gfx/scaler/filter.o \
gfx/state_tracker.o \
gfx/shader_parse.o \
gfx/fonts/fonts.o \
gfx/fonts/bitmapfont.o \
gfx/image.o \
audio/resampler.o \
audio/sinc.o \
audio/null.o \
performance.o
HAVE_OPENGL = 1
HAVE_RGUI = 1
HAVE_SDL = 0
HAVE_ZLIB = 1
HAVE_FBO = 1
WANT_MINIZ = 1
MEMORY = 67108864
LTO = 0
FAST_DOUBLES = 1
ifneq ($(NATIVE_ZLIB),)
WANT_MINIZ = 0
endif
libretro = libretro_emscripten.bc
LIBS = -lm
DEFINES = -DHAVE_SCREENSHOTS -DHAVE_NULLAUDIO -DHAVE_BSV_MOVIE -DPACKAGE_VERSION=\"0.9.9.3\"
LDFLAGS = -L. -s TOTAL_MEMORY=$(MEMORY) --js-library emscripten/library_rwebaudio.js --js-library emscripten/library_rwebinput.js
ifeq ($(PERF_TEST), 1)
DEFINES += -DPERF_TEST
endif
ifeq ($(HAVE_RGUI), 1)
DEFINES += -DHAVE_RGUI
OBJ += frontend/menu/menu_common.o frontend/menu/rgui.o frontend/menu/history.o
endif
ifeq ($(HAVE_SDL), 1)
OBJ += input/sdl_input.o
LIBS += -lSDL
DEFINES += -ISDL -DHAVE_SDL
endif
ifeq ($(HAVE_OPENGL), 1)
OBJ += gfx/gl.o gfx/math/matrix.o gfx/fonts/gl_font.o gfx/fonts/gl_raster_font.o gfx/gfx_context.o gfx/context/emscriptenegl_ctx.o gfx/shader_glsl.o gfx/glsym/rglgen.o gfx/glsym/glsym_es2.o
DEFINES += -DHAVE_OPENGL -DHAVE_OPENGLES -DHAVE_OPENGLES2 -DHAVE_EGL -DHAVE_OVERLAY -DHAVE_GLSL
endif
ifeq ($(HAVE_ZLIB), 1)
OBJ += gfx/rpng/rpng.o file_extract.o
DEFINES += -DHAVE_ZLIB
ifeq ($(WANT_MINIZ), 1)
OBJ += deps/miniz/miniz.o
DEFINES += -DWANT_MINIZ
else
LIBS += -lz
DEFINES += -DHAVE_ZLIB_DEFLATE
endif
endif
ifeq ($(HAVE_FBO), 1)
DEFINES += -DHAVE_FBO
endif
ifneq ($(V), 1)
Q := @
endif
ifeq ($(DEBUG), 1)
LDFLAGS += -O0 -g
CFLAGS += -O0 -g
else
LDFLAGS += -O2
# WARNING: some optimizations can break some cores (ex: LTO breaks tyrquake)
ifeq ($(FAST_DOUBLES), 1)
LDFLAGS += -s DOUBLE_MODE=0
endif
ifeq ($(LTO), 1)
LDFLAGS += --llvm-lto 3
endif
CFLAGS += -O2
endif
CFLAGS += -Wall -Wno-unused-result -Wno-unused-variable -I. -std=gnu99
all: $(TARGET)
$(TARGET): $(OBJ)
@$(if $(Q), $(shell echo echo LD $@),)
$(Q)$(LD) -o $@ $(OBJ) $(libretro) $(LIBS) $(LDFLAGS)
%.o: %.c
@$(if $(Q), $(shell echo echo CC $<),)
$(Q)$(CC) $(CFLAGS) $(DEFINES) -c -o $@ $<
%.o: %.cpp
@$(if $(Q), $(shell echo echo CXX $<),)
$(Q)$(CXX) $(CXXFLAGS) $(DEFINES) -c -o $@ $<
clean:
rm -f *.o
rm -f deps/miniz/*.o
rm -f frontend/*.o
rm -f frontend/menu/*.o
rm -f audio/*.o
rm -f audio/xaudio-c/*.o
rm -f compat/*.o
rm -f compat/rxml/*.o
rm -f conf/*.o
rm -f gfx/scaler/*.o
rm -f gfx/*.o
rm -f gfx/d3d9/*.o
rm -f gfx/context/*.o
rm -f gfx/math/*.o
rm -f gfx/fonts/*.o
rm -f gfx/py_state/*.o
rm -f gfx/rpng/*.o
rm -f gfx/glsym/*.o
rm -f record/*.o
rm -f input/*.o
rm -f tools/*.o
rm -f $(TARGET)
.PHONY: all clean

90
audio/rwebaudio.c Normal file
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@ -0,0 +1,90 @@
/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2013 - Michael Lelli
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include "../driver.h"
#include "../general.h"
#include "../emscripten/RWebAudio.h"
static void ra_free(void *data)
{
RWebAudioFree();
}
static void *ra_init(const char *device, unsigned rate, unsigned latency)
{
(void)device;
(void)rate;
void *data = RWebAudioInit(latency);
if (data)
g_settings.audio.out_rate = RWebAudioSampleRate();
return data;
}
static ssize_t ra_write(void *data, const void *buf, size_t size)
{
(void)data;
return RWebAudioWrite(buf, size);
}
static bool ra_stop(void *data)
{
(void)data;
return RWebAudioStop();
}
static void ra_set_nonblock_state(void *data, bool state)
{
(void)data;
RWebAudioSetNonblockState(state);
}
static bool ra_start(void *data)
{
(void)data;
return RWebAudioStart();
}
static bool ra_use_float(void *data)
{
(void)data;
return true;
}
static size_t ra_write_avail(void *data)
{
(void)data;
return RWebAudioWriteAvail();
}
static size_t ra_buffer_size(void *data)
{
(void)data;
return RWebAudioBufferSize();
}
const audio_driver_t audio_rwebaudio = {
ra_init,
ra_write,
ra_stop,
ra_start,
ra_set_nonblock_state,
ra_free,
ra_use_float,
"rwebaudio",
ra_write_avail,
ra_buffer_size,
};

6
config.def.h
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@ -63,6 +63,7 @@ enum
AUDIO_PS3,
AUDIO_XENON360,
AUDIO_WII,
AUDIO_RWEBAUDIO,
AUDIO_NULL,
INPUT_ANDROID,
@ -77,6 +78,7 @@ enum
INPUT_LINUXRAW,
INPUT_APPLE,
INPUT_QNX,
INPUT_RWEBINPUT,
INPUT_NULL
};
@ -130,6 +132,8 @@ enum
#define AUDIO_DEFAULT_DRIVER AUDIO_SL
#elif defined(HAVE_DSOUND)
#define AUDIO_DEFAULT_DRIVER AUDIO_DSOUND
#elif defined(EMSCRIPTEN)
#define AUDIO_DEFAULT_DRIVER AUDIO_RWEBAUDIO
#elif defined(HAVE_SDL)
#define AUDIO_DEFAULT_DRIVER AUDIO_SDL
#elif defined(HAVE_XAUDIO)
@ -152,6 +156,8 @@ enum
#define INPUT_DEFAULT_DRIVER INPUT_ANDROID
#elif defined(_WIN32)
#define INPUT_DEFAULT_DRIVER INPUT_DINPUT
#elif defined(EMSCRIPTEN)
#define INPUT_DEFAULT_DRIVER INPUT_RWEBINPUT
#elif defined(HAVE_SDL)
#define INPUT_DEFAULT_DRIVER INPUT_SDL
#elif defined(__CELLOS_LV2__)

6
driver.c
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@ -84,6 +84,9 @@ static const audio_driver_t *audio_drivers[] = {
#ifdef GEKKO
&audio_gx,
#endif
#ifdef EMSCRIPTEN
&audio_rwebaudio,
#endif
#ifdef HAVE_NULLAUDIO
&audio_null,
#endif
@ -165,6 +168,9 @@ static const input_driver_t *input_drivers[] = {
#ifdef __BLACKBERRY_QNX__
&input_qnx,
#endif
#ifdef EMSCRIPTEN
&input_rwebinput,
#endif
#ifdef HAVE_NULLINPUT
&input_null,
#endif

2
driver.h
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@ -511,6 +511,7 @@ extern const audio_driver_t audio_coreaudio;
extern const audio_driver_t audio_xenon360;
extern const audio_driver_t audio_ps3;
extern const audio_driver_t audio_gx;
extern const audio_driver_t audio_rwebaudio;
extern const audio_driver_t audio_null;
extern const video_driver_t video_gl;
extern const video_driver_t video_psp1;
@ -536,6 +537,7 @@ extern const input_driver_t input_xinput;
extern const input_driver_t input_linuxraw;
extern const input_driver_t input_apple;
extern const input_driver_t input_qnx;
extern const input_driver_t input_rwebinput;
extern const input_driver_t input_null;
#include "driver_funcs.h"

28
emscripten/RWebAudio.h Normal file
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@ -0,0 +1,28 @@
/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2013 - Michael Lelli
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include <unistd.h>
#include <stdbool.h>
unsigned RWebAudioSampleRate(void);
void *RWebAudioInit(unsigned latency);
ssize_t RWebAudioWrite(const void *buf, size_t size);
bool RWebAudioStop(void);
bool RWebAudioStart(void);
void RWebAudioSetNonblockState(bool state);
void RWebAudioFree(void);
size_t RWebAudioWriteAvail(void);
size_t RWebAudioBufferSize(void);

29
emscripten/RWebInput.h Normal file
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@ -0,0 +1,29 @@
/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2013 - Michael Lelli
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
typedef struct rwebinput_state
{
char keys[32];
int mouse_x;
int mouse_y;
char mouse_l;
char mouse_r;
} rwebinput_state_t;
int RWebInputInit(void);
rwebinput_state_t *RWebInputPoll(int context);
void RWebInputDestroy(int context);

166
emscripten/library_rwebaudio.js Normal file
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@ -0,0 +1,166 @@
//"use strict";
var LibraryRWebAudio = {
$RA__deps: ['$Browser', 'usleep'],
$RA: {
BUFFER_SIZE: 256,
context: null,
buffers: [],
numBuffers: 0,
bufIndex: 0,
bufOffset: 0,
startTime: 0,
nonblock: false,
currentTimeWorkaround: false,
setStartTime: function() {
if (RA.context.currentTime) {
RA.startTime = window['performance']['now']() - RA.context.currentTime * 1000;
var time1 = RA.context.currentTime;
_usleep(50);
if (time1 === RA.context.currentTime) {
RA.currentTimeWorkaround = true;
if (RA.startTime === 0) throw 'startTime is 0';
}
Module["resumeMainLoop"]();
} else window['setTimeout'](RA.setStartTime, 0);
},
getCurrentPerfTime: function() {
if (!RA.currentTimeWorkaround) return RA.context.currentTime;
else if (RA.startTime) return (window['performance']['now']() - RA.startTime) / 1000;
else throw 'getCurrentPerfTime() called before start time set';
},
process: function(queueBuffers) {
var currentTime = RA.getCurrentPerfTime();
for (var i = 0; i < RA.bufIndex; i++) {
if (RA.buffers[i].endTime < currentTime) {
var buf = RA.buffers.splice(i, 1);
RA.buffers[RA.numBuffers - 1] = buf[0];
i--;
RA.bufIndex--;
}
}
},
fillBuffer: function(buf, samples) {
var count = 0;
var leftBuffer = RA.buffers[RA.bufIndex].getChannelData(0);
var rightBuffer = RA.buffers[RA.bufIndex].getChannelData(1);
while (samples && RA.bufOffset !== RA.BUFFER_SIZE) {
leftBuffer[RA.bufOffset] = {{{ makeGetValue('buf', 'count * 8', 'float') }}};
rightBuffer[RA.bufOffset] = {{{ makeGetValue('buf', 'count * 8 + 4', 'float') }}};
RA.bufOffset++;
count++;
samples--;
}
return count;
},
queueAudio: function() {
var index = RA.bufIndex;
var startTime;
if (RA.bufIndex) startTime = RA.buffers[RA.bufIndex - 1].endTime;
else startTime = RA.context.currentTime;
RA.buffers[index].endTime = startTime + RA.buffers[index].duration;
var bufferSource = RA.context.createBufferSource();
bufferSource.buffer = RA.buffers[index];
bufferSource.connect(RA.context.destination);
bufferSource.start(startTime);
RA.bufIndex++;
RA.bufOffset = 0;
},
block: function() {
do {
RA.process();
} while (RA.bufIndex === RA.numBuffers - 1);
}
},
RWebAudioInit: function(latency) {
var ac = window['AudioContext'] || window['webkitAudioContext'];
if (!ac) return 0;
RA.context = new ac();
RA.numBuffers = ((latency * RA.context.sampleRate) / (1000 * RA.BUFFER_SIZE))|0;
if (RA.numBuffers < 2) RA.numBuffers = 2;
for (var i = 0; i < RA.numBuffers; i++) RA.buffers[i] = RA.context.createBuffer(2, RA.BUFFER_SIZE, RA.context.sampleRate);
RA.nonblock = false;
RA.startTime = 0;
// chrome hack to get currentTime running
RA.context.createGain();
window['setTimeout'](RA.setStartTime, 0);
Module["pauseMainLoop"]();
return 1;
},
RWebAudioSampleRate: function() {
return RA.context.sampleRate;
},
RWebAudioWrite: function (buf, size) {
RA.process();
var samples = size / 8;
var count = 0;
while (samples) {
var fill = RA.fillBuffer(buf, samples);
samples -= fill;
count += fill;
buf += fill * 8;
if (RA.bufOffset === RA.BUFFER_SIZE) {
if (RA.bufIndex === RA.numBuffers - 1) {
if (RA.nonblock) break;
else RA.block();
}
RA.queueAudio();
}
}
return count * 8;
},
RWebAudioStop: function() {
RA.bufIndex = 0;
RA.bufOffset = 0;
return true;
},
RWebAudioStart: function() {
return true;
},
RWebAudioSetNonblockState: function(state) {
RA.nonblock = state;
},
RWebAudioFree: function() {
RA.bufIndex = 0;
RA.bufOffset = 0;
return;
},
RWebAudioBufferSize: function() {
return RA.numBuffers * RA.BUFFER_SIZE + RA.BUFFER_SIZE;
},
RWebAudioWriteAvail: function() {
RA.process();
return ((RA.numBuffers - RA.bufIndex) * RA.BUFFER_SIZE - RA.bufOffset) * 8;
}
};
autoAddDeps(LibraryRWebAudio, '$RA');
mergeInto(LibraryManager.library, LibraryRWebAudio);

108
emscripten/library_rwebinput.js Normal file
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@ -0,0 +1,108 @@
//"use strict";
var LibraryRWebInput = {
$RI__deps: ['$Browser'],
$RI: {
temp: null,
contexts: [],
eventHandler: function(event) {
var i;
switch (event.type) {
case 'mousemove':
var x = event['movementX'] || event['mozMovementX'] || event['webkitMovementX'];
var y = event['movementY'] || event['mozMovementY'] || event['webkitMovementY'];
for (i = 0; i < RI.contexts.length; i++) {
var oldX = {{{ makeGetValue('RI.contexts[i].state', '32', 'i32') }}};
var oldY = {{{ makeGetValue('RI.contexts[i].state', '36', 'i32') }}};
x += oldX;
y += oldY;
{{{ makeSetValue('RI.contexts[i].state', '32', 'x', 'i32') }}};
{{{ makeSetValue('RI.contexts[i].state', '36', 'y', 'i32') }}};
}
break;
case 'mouseup':
case 'mousedown':
var value;
var offset;
if (event.button === 0) offset = 40;
else if (event.button === 2) offset = 41;
else break;
if (event.type === 'mouseup') value = 0;
else value = 1;
for (i = 0; i < RI.contexts.length; i++) {
{{{ makeSetValue('RI.contexts[i].state', 'offset', 'value', 'i8') }}};
}
break;
case 'keyup':
case 'keydown':
var key = event.keyCode;
var offset = key >> 3;
var bit = 1 << (key & 7);
if (offset >= 32) throw 'key code error! bad code: ' + key;
for (i = 0; i < RI.contexts.length; i++) {
var value = {{{ makeGetValue('RI.contexts[i].state', 'offset', 'i8') }}};
if (event.type === 'keyup') value &= ~bit;
else value |= bit;
{{{ makeSetValue('RI.contexts[i].state', 'offset', 'value', 'i8') }}};
}
event.preventDefault();
break;
case 'blur':
case 'visibilitychange':
for (i = 0; i < RI.contexts.length; i++) {
_memset(RI.contexts[i].state, 0, 42);
}
break;
}
}
},
RWebInputInit: function(latency) {
if (RI.contexts.length === 0) {
document.addEventListener('keyup', RI.eventHandler, false);
document.addEventListener('keydown', RI.eventHandler, false);
document.addEventListener('mousemove', RI.eventHandler, false);
document.addEventListener('mouseup', RI.eventHandler, false);
document.addEventListener('mousedown', RI.eventHandler, false);
document.addEventListener('blur', RI.eventHandler, false);
document.addEventListener('onvisbilitychange', RI.eventHandler, false);
}
if (RI.temp === null) RI.temp = _malloc(42);
var s = _malloc(42);
_memset(s, 0, 42);
RI.contexts.push({
state: s
});
return RI.contexts.length;
},
RWebInputPoll: function(context) {
context -= 1;
var state = RI.contexts[context].state;
_memcpy(RI.temp, state, 42);
// reset mouse movements
{{{ makeSetValue('RI.contexts[context].state', '32', '0', 'i32') }}};
{{{ makeSetValue('RI.contexts[context].state', '36', '0', 'i32') }}};
return RI.temp;
},
RWebInputDestroy: function (context) {
if (context === RI.contexts.length) {
RI.contexts.pop();
if (RI.contexts.length === 0) {
document.removeEventListener('keyup', RI.eventHandler, false);
document.removeEventListener('keydown', RI.eventHandler, false);
document.removeEventListener('mousemove', RI.eventHandler, false);
document.removeEventListener('mouseup', RI.eventHandler, false);
document.removeEventListener('mousedown', RI.eventHandler, false);
document.removeEventListener('blur', RI.eventHandler, false);
document.removeEventListener('onvisbilitychange', RI.eventHandler, false);
}
}
}
};
autoAddDeps(LibraryRWebInput, '$RI');
mergeInto(LibraryManager.library, LibraryRWebInput);

2
file_ext.h
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@ -42,6 +42,8 @@
#define EXT_EXECUTABLES "dol|DOL"
#define SALAMANDER_FILE "boot.dol"
#define DEFAULT_EXE_EXT ".dol"
#elif defined(EMSCRIPTEN)
#define EXT_EXECUTABLES ""
#endif
#endif

147
frontend/frontend_emscripten.c Normal file
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@ -0,0 +1,147 @@
/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2013 - Hans-Kristian Arntzen
* Copyright (C) 2011-2013 - Daniel De Matteis
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <emscripten/emscripten.h>
#include "../general.h"
#include "../conf/config_file.h"
#include "../file.h"
#include "../emscripten/RWebAudio.h"
#ifdef HAVE_RGUI
#include "../frontend/menu/rgui.h"
#endif
#if defined(HAVE_RGUI) || defined(HAVE_RMENU) || defined(HAVE_RMENU_XUI)
#define HAVE_MENU
#else
#undef HAVE_MENU
#endif
static bool menuloop;
static void endloop(void)
{
g_extern.system.shutdown = false;
menu_free();
if (g_extern.config_save_on_exit && *g_extern.config_path)
config_save_file(g_extern.config_path);
if (g_extern.main_is_init)
rarch_main_deinit();
rarch_deinit_msg_queue();
#ifdef PERF_TEST
rarch_perf_log();
#endif
rarch_main_clear_state();
exit(0);
}
static void mainloop(void)
{
if (g_extern.system.shutdown)
{
endloop();
}
else if (menuloop)
{
if (!menu_iterate())
{
menuloop = false;
driver_set_nonblock_state(driver.nonblock_state);
if (driver.audio_data && !audio_start_func())
{
RARCH_ERR("Failed to resume audio driver. Will continue without audio.\n");
g_extern.audio_active = false;
}
g_extern.lifecycle_mode_state &= ~(1ULL << MODE_MENU);
}
}
else if (g_extern.lifecycle_mode_state & (1ULL << MODE_LOAD_GAME))
{
load_menu_game_prepare();
// If ROM load fails, we exit RetroArch. On console it might make more sense to go back to menu though ...
if (load_menu_game())
g_extern.lifecycle_mode_state |= (1ULL << MODE_GAME);
else
{
#ifdef RARCH_CONSOLE
g_extern.lifecycle_mode_state |= (1ULL << MODE_MENU);
#else
return;
#endif
}
g_extern.lifecycle_mode_state &= ~(1ULL << MODE_LOAD_GAME);
}
else if (g_extern.lifecycle_mode_state & (1ULL << MODE_GAME))
{
bool r;
if (g_extern.is_paused && !g_extern.is_oneshot)
r = rarch_main_idle_iterate();
else
r = rarch_main_iterate();
if (!r)
g_extern.lifecycle_mode_state &= ~(1ULL << MODE_GAME);
}
else if (g_extern.lifecycle_mode_state & (1ULL << MODE_MENU))
{
g_extern.lifecycle_mode_state |= 1ULL << MODE_MENU_PREINIT;
// Menu should always run with vsync on.
video_set_nonblock_state_func(false);
if (driver.audio_data)
audio_stop_func();
menuloop = true;
}
else
{
g_extern.system.shutdown = true;
}
}
int main(int argc, char *argv[])
{
emscripten_set_canvas_size(800, 600);
rarch_main_clear_state();
rarch_init_msg_queue();
int init_ret;
if ((init_ret = rarch_main_init(argc, argv))) return init_ret;
#ifdef HAVE_MENU
menu_init();
g_extern.lifecycle_mode_state |= 1ULL << MODE_GAME;
// If we started a ROM directly from command line,
// push it to ROM history.
if (!g_extern.libretro_dummy)
menu_rom_history_push_current();
#endif
emscripten_set_main_loop(mainloop, g_settings.video.vsync ? 0 : INT_MAX, 1);
return 0;
}

275
gfx/context/emscriptenegl_ctx.c Normal file
View File

@ -0,0 +1,275 @@
/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2013 - Hans-Kristian Arntzen
* Copyright (C) 2012 - Michael Lelli
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
// VideoCore context, for Rasperry Pi.
#include "../../driver.h"
#include "../gfx_context.h"
#include "../gl_common.h"
#include "../gfx_common.h"
#ifdef HAVE_CONFIG_H
#include "../../config.h"
#endif
#include <stdint.h>
#include <unistd.h>
#include <emscripten/emscripten.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>
static EGLContext g_egl_ctx;
static EGLSurface g_egl_surf;
static EGLDisplay g_egl_dpy;
static EGLConfig g_config;
static bool g_inited;
static unsigned g_fb_width;
static unsigned g_fb_height;
static void gfx_ctx_swap_interval(unsigned interval)
{
// no way to control vsync in WebGL
(void)interval;
}
static void gfx_ctx_check_window(bool *quit,
bool *resize, unsigned *width, unsigned *height, unsigned frame_count)
{
(void)frame_count;
int iWidth, iHeight, isFullscreen;
emscripten_get_canvas_size(&iWidth, &iHeight, &isFullscreen);
*width = (unsigned) iWidth;
*height = (unsigned) iHeight;
if (*width != g_fb_width || *height != g_fb_height)
*resize = true;
else
*resize = false;
g_fb_width = (unsigned) iWidth;
g_fb_height = (unsigned) iHeight;
*quit = false;
}
static void gfx_ctx_swap_buffers(void)
{
// no-op in emscripten, no way to force swap/wait for vsync in browsers
//eglSwapBuffers(g_egl_dpy, g_egl_surf);
}
static void gfx_ctx_set_resize(unsigned width, unsigned height)
{
(void)width;
(void)height;
}
static void gfx_ctx_update_window_title(void)
{
char buf[128];
if (gfx_get_fps(buf, sizeof(buf), false))
RARCH_LOG("%s\n", buf);
}
static void gfx_ctx_get_video_size(unsigned *width, unsigned *height)
{
*width = g_fb_width;
*height = g_fb_height;
}
static void gfx_ctx_destroy(void);
static bool gfx_ctx_init(void)
{
EGLint width;
EGLint height;
RARCH_LOG("[EMSCRIPTEN/EGL]: Initializing...\n");
if (g_inited)
{
RARCH_LOG("[EMSCRIPTEN/EGL]: Attempted to re-initialize driver.\n");
return true;
}
EGLint num_config;
static const EGLint attribute_list[] =
{
EGL_RED_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_BLUE_SIZE, 8,
EGL_ALPHA_SIZE, 8,
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_NONE
};
static const EGLint context_attributes[] =
{
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_NONE
};
// get an EGL display connection
g_egl_dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
if (!g_egl_dpy)
goto error;
// initialize the EGL display connection
if (!eglInitialize(g_egl_dpy, NULL, NULL))
goto error;
// get an appropriate EGL frame buffer configuration
if (!eglChooseConfig(g_egl_dpy, attribute_list, &g_config, 1, &num_config))
goto error;
// create an EGL rendering context
g_egl_ctx = eglCreateContext(g_egl_dpy, g_config, EGL_NO_CONTEXT, context_attributes);
if (!g_egl_ctx)
goto error;
// create an EGL window surface
g_egl_surf = eglCreateWindowSurface(g_egl_dpy, g_config, 0, NULL);
if (!g_egl_surf)
goto error;
// connect the context to the surface
if (!eglMakeCurrent(g_egl_dpy, g_egl_surf, g_egl_surf, g_egl_ctx))
goto error;
eglQuerySurface(g_egl_dpy, g_egl_surf, EGL_WIDTH, &width);
eglQuerySurface(g_egl_dpy, g_egl_surf, EGL_HEIGHT, &height);
g_fb_width = width;
g_fb_height = height;
RARCH_LOG("[EMSCRIPTEN/EGL]: Dimensions: %ux%u\n", width, height);
return true;
error:
gfx_ctx_destroy();
return false;
}
static bool gfx_ctx_set_video_mode(
unsigned width, unsigned height,
bool fullscreen)
{
if (g_inited)
return false;
g_inited = true;
return true;
}
static bool gfx_ctx_bind_api(enum gfx_ctx_api api, unsigned major, unsigned minor)
{
(void)major;
(void)minor;
switch (api)
{
case GFX_CTX_OPENGL_ES_API:
return eglBindAPI(EGL_OPENGL_ES_API);
default:
return false;
}
}
static void gfx_ctx_destroy(void)
{
if (g_egl_dpy)
{
eglMakeCurrent(g_egl_dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
if (g_egl_ctx)
{
eglDestroyContext(g_egl_dpy, g_egl_ctx);
}
if (g_egl_surf)
{
eglDestroySurface(g_egl_dpy, g_egl_surf);
}
eglTerminate(g_egl_dpy);
}
g_egl_ctx = NULL;
g_egl_surf = NULL;
g_egl_dpy = NULL;
g_config = 0;
g_inited = false;
}
static void gfx_ctx_input_driver(const input_driver_t **input, void **input_data)
{
*input = NULL;
void *rwebinput = input_rwebinput.init();
if (rwebinput)
{
*input = &input_rwebinput;
*input_data = rwebinput;
}
}
static bool gfx_ctx_has_focus(void)
{
return g_inited;
}
static gfx_ctx_proc_t gfx_ctx_get_proc_address(const char *symbol)
{
return eglGetProcAddress(symbol);
}
static float gfx_ctx_translate_aspect(unsigned width, unsigned height)
{
return (float)width / height;
}
static bool gfx_ctx_init_egl_image_buffer(const video_info_t *video)
{
return false;
}
static bool gfx_ctx_write_egl_image(const void *frame, unsigned width, unsigned height, unsigned pitch, bool rgb32, unsigned index, void **image_handle)
{
return false;
}
const gfx_ctx_driver_t gfx_ctx_emscripten = {
gfx_ctx_init,
gfx_ctx_destroy,
gfx_ctx_bind_api,
gfx_ctx_swap_interval,
gfx_ctx_set_video_mode,
gfx_ctx_get_video_size,
gfx_ctx_translate_aspect,
gfx_ctx_update_window_title,
gfx_ctx_check_window,
gfx_ctx_set_resize,
gfx_ctx_has_focus,
gfx_ctx_swap_buffers,
gfx_ctx_input_driver,
gfx_ctx_get_proc_address,
gfx_ctx_init_egl_image_buffer,
gfx_ctx_write_egl_image,
NULL,
"emscripten",
};

4
gfx/gfx_context.c
View File

@ -13,6 +13,7 @@
* If not, see <http://www.gnu.org/licenses/>.
*/
#include "../general.h"
#include "gfx_context.h"
#include "../general.h"
#include <string.h>
@ -52,6 +53,9 @@ static const gfx_ctx_driver_t *gfx_ctx_drivers[] = {
#if defined(IOS) || defined(OSX) //< Don't use __APPLE__ as it breaks basic SDL builds
&gfx_ctx_apple,
#endif
#ifdef EMSCRIPTEN
&gfx_ctx_emscripten,
#endif
};
const gfx_ctx_driver_t *gfx_ctx_find_driver(const char *ident)

1
gfx/gfx_context.h
View File

@ -108,6 +108,7 @@ extern const gfx_ctx_driver_t gfx_ctx_wgl;
extern const gfx_ctx_driver_t gfx_ctx_videocore;
extern const gfx_ctx_driver_t gfx_ctx_bbqnx;
extern const gfx_ctx_driver_t gfx_ctx_apple;
extern const gfx_ctx_driver_t gfx_ctx_emscripten;
extern const gfx_ctx_driver_t gfx_ctx_null;
const gfx_ctx_driver_t *gfx_ctx_find_driver(const char *ident); // Finds driver with ident. Does not initialize.

91
input/input_common.c
View File

@ -16,6 +16,7 @@
#include "input_common.h"
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include "../general.h"
#include "../driver.h"
@ -515,6 +516,96 @@ const struct rarch_key_map rarch_key_map_dinput[] = {
};
#endif
#ifdef EMSCRIPTEN
const struct rarch_key_map rarch_key_map_rwebinput[] = {
{ 37, RETROK_LEFT },
{ 39, RETROK_RIGHT },
{ 38, RETROK_UP },
{ 40, RETROK_DOWN },
{ 13, RETROK_RETURN },
{ 9, RETROK_TAB },
{ 45, RETROK_INSERT },
{ 46, RETROK_DELETE },
{ 16, RETROK_RSHIFT },
{ 16, RETROK_LSHIFT },
{ 17, RETROK_LCTRL },
{ 35, RETROK_END },
{ 36, RETROK_HOME },
{ 34, RETROK_PAGEDOWN },
{ 33, RETROK_PAGEUP },
{ 18, RETROK_LALT },
{ 32, RETROK_SPACE },
{ 27, RETROK_ESCAPE },
{ 8, RETROK_BACKSPACE },
{ 13, RETROK_KP_ENTER },
{ 107, RETROK_KP_PLUS },
{ 109, RETROK_KP_MINUS },
{ 106, RETROK_KP_MULTIPLY },
{ 111, RETROK_KP_DIVIDE },
{ 192, RETROK_BACKQUOTE },
{ 19, RETROK_PAUSE },
{ 96, RETROK_KP0 },
{ 97, RETROK_KP1 },
{ 98, RETROK_KP2 },
{ 99, RETROK_KP3 },
{ 100, RETROK_KP4 },
{ 101, RETROK_KP5 },
{ 102, RETROK_KP6 },
{ 103, RETROK_KP7 },
{ 104, RETROK_KP8 },
{ 105, RETROK_KP9 },
{ 48, RETROK_0 },
{ 49, RETROK_1 },
{ 50, RETROK_2 },
{ 51, RETROK_3 },
{ 52, RETROK_4 },
{ 53, RETROK_5 },
{ 54, RETROK_6 },
{ 55, RETROK_7 },
{ 56, RETROK_8 },
{ 57, RETROK_9 },
{ 112, RETROK_F1 },
{ 113, RETROK_F2 },
{ 114, RETROK_F3 },
{ 115, RETROK_F4 },
{ 116, RETROK_F5 },
{ 117, RETROK_F6 },
{ 118, RETROK_F7 },
{ 119, RETROK_F8 },
{ 120, RETROK_F9 },
{ 121, RETROK_F10 },
{ 122, RETROK_F11 },
{ 123, RETROK_F12 },
{ 65, RETROK_a },
{ 66, RETROK_b },
{ 67, RETROK_c },
{ 68, RETROK_d },
{ 69, RETROK_e },
{ 70, RETROK_f },
{ 71, RETROK_g },
{ 72, RETROK_h },
{ 73, RETROK_i },
{ 74, RETROK_j },
{ 75, RETROK_k },
{ 76, RETROK_l },
{ 77, RETROK_m },
{ 78, RETROK_n },
{ 79, RETROK_o },
{ 80, RETROK_p },
{ 81, RETROK_q },
{ 82, RETROK_r },
{ 83, RETROK_s },
{ 84, RETROK_t },
{ 85, RETROK_u },
{ 86, RETROK_v },
{ 87, RETROK_w },
{ 88, RETROK_x },
{ 89, RETROK_y },
{ 90, RETROK_z },
{ 0, RETROK_UNKNOWN },
};
#endif
static enum retro_key rarch_keysym_lut[RETROK_LAST];
void input_init_keyboard_lut(const struct rarch_key_map *map)

1
input/input_common.h
View File

@ -106,6 +106,7 @@ struct rarch_key_map
extern const struct rarch_key_map rarch_key_map_x11[];
extern const struct rarch_key_map rarch_key_map_sdl[];
extern const struct rarch_key_map rarch_key_map_dinput[];
extern const struct rarch_key_map rarch_key_map_rwebinput[];
void input_init_keyboard_lut(const struct rarch_key_map *map);
enum retro_key input_translate_keysym_to_rk(unsigned sym);

149
input/rwebinput_input.c Normal file
View File

@ -0,0 +1,149 @@
/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2013 - Michael Lelli
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include "input_common.h"
#include "../driver.h"
#include "../boolean.h"
#include "../general.h"
#include "../emscripten/RWebInput.h"
static bool uninited = false;
typedef struct rwebinput_input
{
rwebinput_state_t state;
int context;
} rwebinput_input_t;
static void *rwebinput_input_init(void)
{
rwebinput_input_t *rwebinput = (rwebinput_input_t*)calloc(1, sizeof(*rwebinput));
if (!rwebinput)
return NULL;
rwebinput->context = RWebInputInit();
if (!rwebinput->context)
{
free(rwebinput);
return NULL;
}
input_init_keyboard_lut(rarch_key_map_rwebinput);
return rwebinput;
}
static bool rwebinput_key_pressed(rwebinput_input_t *rwebinput, int key)
{
if (key >= RETROK_LAST)
return false;
unsigned sym = input_translate_rk_to_keysym((enum retro_key)key);
bool ret = rwebinput->state.keys[sym >> 3] & (1 << (sym & 7));
return ret;
}
static bool rwebinput_is_pressed(rwebinput_input_t *rwebinput, const struct retro_keybind *binds, unsigned id)
{
if (id < RARCH_BIND_LIST_END)
{
const struct retro_keybind *bind = &binds[id];
return bind->valid && rwebinput_key_pressed(rwebinput, binds[id].key);
}
else
return false;
}
static bool rwebinput_bind_button_pressed(void *data, int key)
{
rwebinput_input_t *rwebinput = (rwebinput_input_t*)data;
return rwebinput_is_pressed(rwebinput, g_settings.input.binds[0], key);
}
static int16_t rwebinput_mouse_state(rwebinput_input_t *rwebinput, unsigned id)
{
switch (id)
{
case RETRO_DEVICE_ID_MOUSE_X:
return (int16_t) rwebinput->state.mouse_x;
case RETRO_DEVICE_ID_MOUSE_Y:
return (int16_t) rwebinput->state.mouse_y;
case RETRO_DEVICE_ID_MOUSE_LEFT:
return rwebinput->state.mouse_l;
case RETRO_DEVICE_ID_MOUSE_RIGHT:
return rwebinput->state.mouse_r;
default:
return 0;
}
}
static int16_t rwebinput_input_state(void *data, const struct retro_keybind **binds, unsigned port, unsigned device, unsigned index, unsigned id)
{
rwebinput_input_t *rwebinput = (rwebinput_input_t*)data;
switch (device)
{
case RETRO_DEVICE_JOYPAD:
return rwebinput_is_pressed(rwebinput, binds[port], id);
case RETRO_DEVICE_KEYBOARD:
return rwebinput_key_pressed(rwebinput, id);
case RETRO_DEVICE_MOUSE:
return rwebinput_mouse_state(rwebinput, id);
default:
return 0;
}
}
static void rwebinput_input_free(void *data)
{
rwebinput_input_t *rwebinput = (rwebinput_input_t*)data;
uninited = true;
RWebInputDestroy(rwebinput->context);
free(data);
}
static void rwebinput_input_poll(void *data)
{
rwebinput_input_t *rwebinput = (rwebinput_input_t*)data;
rwebinput_state_t *state = RWebInputPoll(rwebinput->context);
memcpy(&rwebinput->state, state, sizeof(rwebinput->state));
}
static void rwebinput_grab_mouse(void *data, bool state)
{
(void)data;
(void)state;
}
const input_driver_t input_rwebinput = {
rwebinput_input_init,
rwebinput_input_poll,
rwebinput_input_state,
rwebinput_bind_button_pressed,
rwebinput_input_free,
NULL,
"rwebinput",
rwebinput_grab_mouse,
};

8
libretro-test/Makefile
View File

@ -1,4 +1,8 @@
ifneq ($(EMSCRIPTEN),)
platform = emscripten
endif
ifeq ($(platform),)
platform = unix
ifeq ($(shell uname -a),)
@ -32,6 +36,10 @@ else ifeq ($(platform), qnx)
TARGET := $(TARGET_NAME)_libretro_qnx.so
fpic := -fPIC
SHARED := -shared -Wl,--version-script=link.T -Wl,--no-undefined
else ifeq ($(platform), emscripten)
TARGET := $(TARGET_NAME)_libretro_emscripten.so
fpic := -fPIC
SHARED := -shared -Wl,--version-script=link.T -Wl,--no-undefined
else
CC = gcc
TARGET := $(TARGET_NAME)_retro.dll

6
performance.c
View File

@ -58,6 +58,10 @@
#include <mach/mach.h>
#endif
#ifdef EMSCRIPTEN
#include <emscripten.h>
#endif
#ifdef PERF_TEST
#define MAX_COUNTERS 64
static struct rarch_perf_counter *perf_counters[MAX_COUNTERS];
@ -145,6 +149,8 @@ rarch_time_t rarch_get_time_usec(void)
if (clock_gettime(CLOCK_MONOTONIC, &tv) < 0)
return 0;
return tv.tv_sec * INT64_C(1000000) + (tv.tv_nsec + 500) / 1000;
#elif defined(EMSCRIPTEN)
return emscripten_get_now() * 1000;
#else
#error "Your platform does not have a timer function implemented in rarch_get_time_usec(). Cannot continue."
#endif

4
settings.c
View File

@ -67,6 +67,8 @@ const char *config_get_default_audio(void)
return "ps3";
case AUDIO_WII:
return "gx";
case AUDIO_RWEBAUDIO:
return "rwebaudio";
case AUDIO_NULL:
return "null";
default:
@ -137,6 +139,8 @@ const char *config_get_default_input(void)
return "apple_input";
case INPUT_QNX:
return "qnx_input";
case INPUT_RWEBINPUT:
return "rwebinput";
case INPUT_NULL:
return "null";
default: