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/*
* Copyright 2008, The Android Open Source Project
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "AudioPlugin.h"
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <time.h>
#include <math.h>
#include <string.h>
extern NPNetscapeFuncs* browser;
extern ANPLogInterfaceV0 gLogI;
extern ANPCanvasInterfaceV0 gCanvasI;
extern ANPPaintInterfaceV0 gPaintI;
extern ANPAudioTrackInterfaceV0 gSoundI;
extern ANPTypefaceInterfaceV0 gTypefaceI;
static void inval(NPP instance) {
browser->invalidaterect(instance, NULL);
}
static uint16_t rnd16(float x, int inset) {
int ix = (int)roundf(x) + inset;
if (ix < 0) {
ix = 0;
}
return static_cast<uint16_t>(ix);
}
static void inval(NPP instance, const ANPRectF& r, bool doAA) {
const int inset = doAA ? -1 : 0;
PluginObject *obj = reinterpret_cast<PluginObject*>(instance->pdata);
NPRect inval;
inval.left = rnd16(r.left, inset);
inval.top = rnd16(r.top, inset);
inval.right = rnd16(r.right, -inset);
inval.bottom = rnd16(r.bottom, -inset);
browser->invalidaterect(instance, &inval);
}
static void audioCallback(ANPAudioEvent evt, void* user, ANPAudioBuffer* buffer) {
switch (evt) {
case kMoreData_ANPAudioEvent: {
SoundPlay* play = reinterpret_cast<SoundPlay*>(user);
size_t amount = fread(buffer->bufferData, 1, buffer->size, play->file);
buffer->size = amount;
if (amount == 0) {
gSoundI.stop(play->track);
fclose(play->file);
play->file = NULL;
// TODO need to notify our main thread to delete the track now
}
if (play->fileSize > 0) {
// TODO we need to properly update the progress value
play->progress = 1;
inval(play->instance);
}
break;
}
default:
break;
}
}
///////////////////////////////////////////////////////////////////////////////
AudioPlugin::AudioPlugin(NPP inst) : SubPlugin(inst) {
const char path[] = "/sdcard/sample.raw";
// open a file stream
FILE* f = fopen(path, "r");
gLogI.log(kDebug_ANPLogType, "--- path %s FILE %p", path, f);
// setup our private audio struct's default values
m_soundPlay = new SoundPlay;
m_soundPlay->instance = inst;
m_soundPlay->progress = 0;
m_soundPlay->fileSize = 0;
m_soundPlay->file = f;
m_soundPlay->track = NULL;
// create the audio track
if (f) {
m_soundPlay->track = gSoundI.newTrack(44100, kPCM16Bit_ANPSampleFormat, 2, audioCallback, m_soundPlay);
if (!m_soundPlay->track) {
fclose(f);
m_soundPlay->file = NULL;
}
}
// get the audio file's size
int fileDescriptor = open(path, O_RDONLY);
struct stat fileStatus;
if(fileDescriptor <= 0) {
gLogI.log(kError_ANPLogType, "fopen error");
}
else if (fstat(fileDescriptor, &fileStatus) != 0) {
gLogI.log(kDebug_ANPLogType, "File Size: %d", fileStatus.st_size);
m_soundPlay->fileSize = fileStatus.st_size;
} else {
gLogI.log(kError_ANPLogType, "fstat error");
}
// configure the UI elements
m_activeTouch = false;
memset(&m_trackRect, 0, sizeof(m_trackRect));
memset(&m_playRect, 0, sizeof(m_playRect));
memset(&m_pauseRect, 0, sizeof(m_pauseRect));
memset(&m_stopRect, 0, sizeof(m_stopRect));
m_paintTrack = gPaintI.newPaint();
gPaintI.setFlags(m_paintTrack, gPaintI.getFlags(m_paintTrack) | kAntiAlias_ANPPaintFlag);
gPaintI.setColor(m_paintTrack, 0xFFC0C0C0);
m_paintRect = gPaintI.newPaint();
gPaintI.setFlags(m_paintRect, gPaintI.getFlags(m_paintRect) | kAntiAlias_ANPPaintFlag);
gPaintI.setColor(m_paintRect, 0xFFA8A8A8);
m_paintText = gPaintI.newPaint();
gPaintI.setFlags(m_paintText, gPaintI.getFlags(m_paintText) | kAntiAlias_ANPPaintFlag);
gPaintI.setColor(m_paintText, 0xFF2F4F4F);
gPaintI.setTextSize(m_paintText, 18);
m_paintTrackProgress = gPaintI.newPaint();
gPaintI.setFlags(m_paintTrackProgress, gPaintI.getFlags(m_paintTrackProgress) | kAntiAlias_ANPPaintFlag);
gPaintI.setColor(m_paintTrackProgress, 0xFF545454);
m_paintActiveRect = gPaintI.newPaint();
gPaintI.setFlags(m_paintActiveRect, gPaintI.getFlags(m_paintActiveRect) | kAntiAlias_ANPPaintFlag);
gPaintI.setColor(m_paintActiveRect, 0xFF545454);
ANPTypeface* tf = gTypefaceI.createFromName("serif", kItalic_ANPTypefaceStyle);
gPaintI.setTypeface(m_paintText, tf);
gTypefaceI.unref(tf);
//register for touch events
ANPEventFlags flags = kTouch_ANPEventFlag;
NPError err = browser->setvalue(inst, kAcceptEvents_ANPSetValue, &flags);
if (err != NPERR_NO_ERROR) {
gLogI.log(kError_ANPLogType, "Error selecting input events.");
}
}
AudioPlugin::~AudioPlugin() {
gPaintI.deletePaint(m_paintTrack);
gPaintI.deletePaint(m_paintRect);
gPaintI.deletePaint(m_paintText);
gPaintI.deletePaint(m_paintTrackProgress);
gPaintI.deletePaint(m_paintActiveRect);
if(m_soundPlay->track)
gSoundI.deleteTrack(m_soundPlay->track);
delete m_soundPlay;
}
bool AudioPlugin::supportsDrawingModel(ANPDrawingModel model) {
return (model == kBitmap_ANPDrawingModel);
}
void AudioPlugin::drawPlugin(const ANPBitmap& bitmap, const ANPRectI& clip) {
ANPCanvas* canvas = gCanvasI.newCanvas(&bitmap);
ANPRectF clipR;
clipR.left = clip.left;
clipR.top = clip.top;
clipR.right = clip.right;
clipR.bottom = clip.bottom;
gCanvasI.clipRect(canvas, &clipR);
draw(canvas);
gCanvasI.deleteCanvas(canvas);
}
void AudioPlugin::draw(ANPCanvas* canvas) {
PluginObject *obj = (PluginObject*) this->inst()->pdata;
gLogI.log(kError_ANPLogType, "Drawing");
const float trackHeight = 30;
const float buttonWidth = 60;
const float buttonHeight = 30;
const int W = obj->window->width;
const int H = obj->window->height;
// color the plugin canvas
gCanvasI.drawColor(canvas, 0xFFCDCDCD);
// get font metrics
ANPFontMetrics fontMetrics;
gPaintI.getFontMetrics(m_paintText, &fontMetrics);
// draw the track box (1 px from the edge)
m_trackRect.left = 1;
m_trackRect.top = 1;
m_trackRect.right = W - 2;
m_trackRect.bottom = 1 + trackHeight;
gCanvasI.drawRect(canvas, &m_trackRect, m_paintTrack);
// draw the progress bar
if (m_soundPlay->progress > 0) {
// TODO need to draw progress bar to cover the proper percentage of the track bar
gCanvasI.drawRect(canvas, &m_trackRect, m_paintTrackProgress);
}
// draw the play box (under track box)
m_playRect.left = m_trackRect.left + 5;
m_playRect.top = m_trackRect.bottom + 10;
m_playRect.right = m_playRect.left + buttonWidth;
m_playRect.bottom = m_playRect.top + buttonHeight;
gCanvasI.drawRect(canvas, &m_playRect, getPaint(&m_playRect));
// draw the play box (under track box)
const char playText[] = "Play";
gCanvasI.drawText(canvas, playText, sizeof(playText)-1, m_playRect.left + 5,
m_playRect.top - fontMetrics.fTop, m_paintText);
// draw the pause box (under track box)
m_pauseRect.left = m_playRect.right + 20;
m_pauseRect.top = m_trackRect.bottom + 10;
m_pauseRect.right = m_pauseRect.left + buttonWidth;
m_pauseRect.bottom = m_pauseRect.top + buttonHeight;
gCanvasI.drawRect(canvas, &m_pauseRect, getPaint(&m_pauseRect));
// draw the text in the pause box
const char pauseText[] = "Pause";
gCanvasI.drawText(canvas, pauseText, sizeof(pauseText)-1, m_pauseRect.left + 5,
m_pauseRect.top - fontMetrics.fTop, m_paintText);
// draw the stop box (under track box)
m_stopRect.left = m_pauseRect.right + 20;
m_stopRect.top = m_trackRect.bottom + 10;
m_stopRect.right = m_stopRect.left + buttonWidth;
m_stopRect.bottom = m_stopRect.top + buttonHeight;
gCanvasI.drawRect(canvas, &m_stopRect, getPaint(&m_stopRect));
// draw the text in the pause box
const char stopText[] = "Stop";
gCanvasI.drawText(canvas, stopText, sizeof(stopText)-1, m_stopRect.left + 5,
m_stopRect.top - fontMetrics.fTop, m_paintText);
}
ANPPaint* AudioPlugin::getPaint(ANPRectF* input) {
return (input == m_activeRect) ? m_paintActiveRect : m_paintRect;
}
int16_t AudioPlugin::handleEvent(const ANPEvent* evt) {
NPP instance = this->inst();
switch (evt->eventType) {
case kDraw_ANPEventType:
switch (evt->data.draw.model) {
case kBitmap_ANPDrawingModel:
drawPlugin(evt->data.draw.data.bitmap, evt->data.draw.clip);
return 1;
default:
break; // unknown drawing model
}
case kTouch_ANPEventType: {
int x = evt->data.touch.x;
int y = evt->data.touch.y;
if (kDown_ANPTouchAction == evt->data.touch.action) {
m_activeTouchRect = validTouch(x,y);
if(m_activeTouchRect) {
m_activeTouch = true;
return 1;
}
} else if (kUp_ANPTouchAction == evt->data.touch.action && m_activeTouch) {
handleTouch(x, y);
m_activeTouch = false;
return 1;
} else if (kCancel_ANPTouchAction == evt->data.touch.action) {
m_activeTouch = false;
}
break;
}
default:
break;
}
return 0; // unknown or unhandled event
}
void AudioPlugin::invalActiveRect() {
}
ANPRectF* AudioPlugin::validTouch(int x, int y) {
if (m_playRect.left && x < m_playRect.right && y > m_playRect.top && y < m_playRect.bottom)
return &m_playRect;
else if (m_pauseRect.left && x < m_pauseRect.right && y > m_pauseRect.top && y < m_pauseRect.bottom)
return &m_pauseRect;
else if (x > m_stopRect.left && x < m_stopRect.right && y > m_stopRect.top && y < m_stopRect.bottom)
return &m_stopRect;
else
return NULL;
}
void AudioPlugin::handleTouch(int x, int y) {
NPP instance = this->inst();
// if the track is null then return
if (NULL == m_soundPlay->track) {
gLogI.log(kError_ANPLogType, "---- %p unable to create track",
instance);
return;
}
// check to make sure the currentRect matches the activeRect
ANPRectF* currentRect = validTouch(x,y);
if (m_activeTouchRect != currentRect)
return;
if (currentRect == &m_playRect) {
gLogI.log(kDebug_ANPLogType, "---- %p starting track (%d)",
m_soundPlay->track, gSoundI.isStopped(m_soundPlay->track));
if (gSoundI.isStopped(m_soundPlay->track)) {
gSoundI.start(m_soundPlay->track);
}
}
else if (currentRect == &m_pauseRect) {
gLogI.log(kDebug_ANPLogType, "---- %p pausing track (%d)",
m_soundPlay->track, gSoundI.isStopped(m_soundPlay->track));
if (!gSoundI.isStopped(m_soundPlay->track)) {
gSoundI.pause(m_soundPlay->track);
}
}
else if (currentRect == &m_stopRect) {
gLogI.log(kDebug_ANPLogType, "---- %p stopping track (%d)",
m_soundPlay->track, gSoundI.isStopped(m_soundPlay->track));
if (!gSoundI.isStopped(m_soundPlay->track)) {
gSoundI.stop(m_soundPlay->track);
}
if (m_soundPlay->file) {
fseek(m_soundPlay->file, 0, SEEK_SET);
}
}
else {
return;
}
// set the currentRect to be the activeRect
m_activeRect = currentRect;
inval(instance);
}