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Initial merge of Emscripten port!

Browse Source 
With this commit, you can compile SDL2 with Emscripten
( http://emscripten.org/ ), and make your SDL-based C/C++ program
into a web app.

This port was due to the efforts of several people, including: Charlie Birks,
Sathyanarayanan Gunasekaran, Jukka Jyl?nki, Alon Zakai, Edward Rudd,
Bruce Mitchener, and Martin Gerhardy. (Thanks, everyone!)
This commit is contained in:
Ryan C. Gordon
2014-12-18 00:19:52 -05:00
parent a228b67d88
commit fe40a17224
61 changed files with 4047 additions and 600 deletions
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4
src/power/SDL_power.c
View File

@@ -38,6 +38,7 @@ SDL_bool SDL_GetPowerInfo_UIKit(SDL_PowerState *, int *, int *);
SDL_bool SDL_GetPowerInfo_Android(SDL_PowerState *, int *, int *);
SDL_bool SDL_GetPowerInfo_PSP(SDL_PowerState *, int *, int *);
SDL_bool SDL_GetPowerInfo_WinRT(SDL_PowerState *, int *, int *);
SDL_bool SDL_GetPowerInfo_Emscripten(SDL_PowerState *, int *, int *);
#ifndef SDL_POWER_DISABLED
#ifdef SDL_POWER_HARDWIRED
@@ -81,6 +82,9 @@ static SDL_GetPowerInfo_Impl implementations[] = {
#ifdef SDL_POWER_WINRT /* handles WinRT */
SDL_GetPowerInfo_WinRT,
#endif
#ifdef SDL_POWER_EMSCRIPTEN /* handles Emscripten */
SDL_GetPowerInfo_Emscripten,
#endif
#ifdef SDL_POWER_HARDWIRED
SDL_GetPowerInfo_Hardwired,

62
src/power/emscripten/SDL_syspower.c Normal file
View File

@@ -0,0 +1,62 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "../../SDL_internal.h"
#ifndef SDL_POWER_DISABLED
#if SDL_POWER_EMSCRIPTEN
#include <emscripten/html5.h>
#include "SDL_power.h"
SDL_bool
SDL_GetPowerInfo_Emscripten(SDL_PowerState *state, int *seconds, int *percent)
{
EmscriptenBatteryEvent batteryState;
int haveBattery = 0;
if (emscripten_get_battery_status(&batteryState) == EMSCRIPTEN_RESULT_NOT_SUPPORTED)
return SDL_FALSE;
haveBattery = batteryState.level != 1.0 || !batteryState.charging || batteryState.chargingTime != 0.0;
if (!haveBattery) {
*state = SDL_POWERSTATE_NO_BATTERY;
*seconds = -1;
*percent = -1;
return SDL_TRUE;
}
if (batteryState.charging)
*state = batteryState.chargingTime == 0.0 ? SDL_POWERSTATE_CHARGED : SDL_POWERSTATE_CHARGING;
else
*state = SDL_POWERSTATE_ON_BATTERY;
*seconds = batteryState.dischargingTime;
*percent = batteryState.level * 100;
return SDL_TRUE;
}
#endif /* SDL_POWER_EMSCRIPTEN */
#endif /* SDL_POWER_DISABLED */
/* vi: set ts=4 sw=4 expandtab: */