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gecko-dev/dom/plugins/base/android/android_npapi.h

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/*
* Copyright 2009, 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 THE COPYRIGHT OWNER 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.
*/
/* Defines the android-specific types and functions as part of npapi
In particular, defines the window and event types that are passed to
NPN_GetValue, NPP_SetWindow and NPP_HandleEvent.
To minimize what native libraries the plugin links against, some
functionality is provided via function-ptrs (e.g. time, sound)
*/
#ifndef android_npapi_H
#define android_npapi_H
#include <stdint.h>
#include <jni.h>
#include "npapi.h"
#include "GLDefs.h"
///////////////////////////////////////////////////////////////////////////////
// General types
enum ANPBitmapFormats {
kUnknown_ANPBitmapFormat = 0,
kRGBA_8888_ANPBitmapFormat = 1,
kRGB_565_ANPBitmapFormat = 2
};
typedef int32_t ANPBitmapFormat;
struct ANPPixelPacking {
uint8_t AShift;
uint8_t ABits;
uint8_t RShift;
uint8_t RBits;
uint8_t GShift;
uint8_t GBits;
uint8_t BShift;
uint8_t BBits;
};
struct ANPBitmap {
void* baseAddr;
ANPBitmapFormat format;
int32_t width;
int32_t height;
int32_t rowBytes;
};
struct ANPRectF {
float left;
float top;
float right;
float bottom;
};
struct ANPRectI {
int32_t left;
int32_t top;
int32_t right;
int32_t bottom;
};
struct ANPCanvas;
struct ANPMatrix;
struct ANPPaint;
struct ANPPath;
struct ANPTypeface;
///////////////////////////////////////////////////////////////////////////////
// NPN_GetValue
/** queries for a specific ANPInterface.
Maybe called with NULL for the NPP instance
NPN_GetValue(inst, interface_enum, ANPInterface*)
*/
#define kLogInterfaceV0_ANPGetValue ((NPNVariable)1000)
#define kAudioTrackInterfaceV0_ANPGetValue ((NPNVariable)1001)
#define kCanvasInterfaceV0_ANPGetValue ((NPNVariable)1002)
#define kMatrixInterfaceV0_ANPGetValue ((NPNVariable)1003)
#define kPaintInterfaceV0_ANPGetValue ((NPNVariable)1004)
#define kPathInterfaceV0_ANPGetValue ((NPNVariable)1005)
#define kTypefaceInterfaceV0_ANPGetValue ((NPNVariable)1006)
#define kWindowInterfaceV0_ANPGetValue ((NPNVariable)1007)
#define kBitmapInterfaceV0_ANPGetValue ((NPNVariable)1008)
#define kSurfaceInterfaceV0_ANPGetValue ((NPNVariable)1009)
#define kSystemInterfaceV0_ANPGetValue ((NPNVariable)1010)
#define kEventInterfaceV0_ANPGetValue ((NPNVariable)1011)
#define kAudioTrackInterfaceV1_ANPGetValue ((NPNVariable)1012)
#define kOpenGLInterfaceV0_ANPGetValue ((NPNVariable)1013)
#define kWindowInterfaceV1_ANPGetValue ((NPNVariable)1014)
#define kVideoInterfaceV0_ANPGetValue ((NPNVariable)1015)
#define kSystemInterfaceV1_ANPGetValue ((NPNVariable)1016)
#define kSystemInterfaceV2_ANPGetValue ((NPNVariable)1017)
#define kWindowInterfaceV2_ANPGetValue ((NPNVariable)1018)
#define kNativeWindowInterfaceV0_ANPGetValue ((NPNVariable)1019)
#define kVideoInterfaceV1_ANPGetValue ((NPNVariable)1020)
/** queries for the drawing models supported on this device.
NPN_GetValue(inst, kSupportedDrawingModel_ANPGetValue, uint32_t* bits)
*/
#define kSupportedDrawingModel_ANPGetValue ((NPNVariable)2000)
/** queries for the context (android.content.Context) of the plugin. If no
instance is specified the application's context is returned. If the instance
is given then the context returned is identical to the context used to
create the webview in which that instance resides.
NOTE: Holding onto a non-application context after your instance has been
destroyed will cause a memory leak. Refer to the android documentation to
determine what context is best suited for your particular scenario.
NPN_GetValue(inst, kJavaContext_ANPGetValue, jobject context)
*/
#define kJavaContext_ANPGetValue ((NPNVariable)2001)
///////////////////////////////////////////////////////////////////////////////
// NPN_SetValue
/** Request to set the drawing model. SetValue will return false if the drawing
model is not supported or has insufficient information for configuration.
NPN_SetValue(inst, kRequestDrawingModel_ANPSetValue, (void*)foo_ANPDrawingModel)
*/
#define kRequestDrawingModel_ANPSetValue ((NPPVariable)1000)
/** These are used as bitfields in ANPSupportedDrawingModels_EnumValue,
and as-is in ANPRequestDrawingModel_EnumValue. The drawing model determines
how to interpret the ANPDrawingContext provided in the Draw event and how
to interpret the NPWindow->window field.
*/
enum ANPDrawingModels {
/** Draw into a bitmap from the browser thread in response to a Draw event.
NPWindow->window is reserved (ignore)
*/
kBitmap_ANPDrawingModel = 1 << 0,
/** Draw into a surface (e.g. raster, openGL, etc.) using the Java surface
interface. When this model is used the browser will invoke the Java
class specified in the plugin's apk manifest. From that class the browser
will invoke the appropriate method to return an an instance of a android
Java View. The instance is then embedded in the html. The plugin can then
manipulate the view as it would any normal Java View in android.
Unlike the bitmap model, a surface model is opaque so no html content
behind the plugin will be visible. Unless the plugin needs to be
transparent the surface model should be chosen over the bitmap model as
it will have better performance.
Further, a plugin can manipulate some surfaces in native code using the
ANPSurfaceInterface. This interface can be used to manipulate Java
objects that extend Surface.class by allowing them to access the
surface's underlying bitmap in native code. For instance, if a raster
surface is used the plugin can lock, draw directly into the bitmap, and
unlock the surface in native code without making JNI calls to the Java
surface object.
*/
kSurface_ANPDrawingModel = 1 << 1,
kOpenGL_ANPDrawingModel = 1 << 2,
};
typedef int32_t ANPDrawingModel;
/** Request to receive/disable events. If the pointer is NULL then all flags will
be disabled. Otherwise, the event type will be enabled iff its corresponding
bit in the EventFlags bit field is set.
NPN_SetValue(inst, ANPAcceptEvents, (void*)EventFlags)
*/
#define kAcceptEvents_ANPSetValue ((NPPVariable)1001)
/** The EventFlags are a set of bits used to determine which types of events the
plugin wishes to receive. For example, if the value is 0x03 then both key
and touch events will be provided to the plugin.
*/
enum ANPEventFlag {
kKey_ANPEventFlag = 0x01,
kTouch_ANPEventFlag = 0x02,
};
typedef uint32_t ANPEventFlags;
///////////////////////////////////////////////////////////////////////////////
// NPP_GetValue
/** Requests that the plugin return a java surface to be displayed. This will
only be used if the plugin has choosen the kSurface_ANPDrawingModel.
NPP_GetValue(inst, kJavaSurface_ANPGetValue, jobject surface)
*/
#define kJavaSurface_ANPGetValue ((NPPVariable)2000)
///////////////////////////////////////////////////////////////////////////////
// ANDROID INTERFACE DEFINITIONS
/** Interfaces provide additional functionality to the plugin via function ptrs.
Once an interface is retrieved, it is valid for the lifetime of the plugin
(just like browserfuncs).
All ANPInterfaces begin with an inSize field, which must be set by the
caller (plugin) with the number of bytes allocated for the interface.
e.g. SomeInterface si; si.inSize = sizeof(si); browser->getvalue(..., &si);
*/
struct ANPInterface {
uint32_t inSize; // size (in bytes) of this struct
};
enum ANPLogTypes {
kError_ANPLogType = 0, // error
kWarning_ANPLogType = 1, // warning
kDebug_ANPLogType = 2 // debug only (informational)
};
typedef int32_t ANPLogType;
struct ANPLogInterfaceV0 : ANPInterface {
/** dumps printf messages to the log file
e.g. interface->log(instance, kWarning_ANPLogType, "value is %d", value);
*/
void (*log)(ANPLogType, const char format[], ...);
};
/** ANPColor is always defined to have the same packing on all platforms, and
it is always unpremultiplied.
This is in contrast to 32bit format(s) in bitmaps, which are premultiplied,
and their packing may vary depending on the platform, hence the need for
ANPBitmapInterface::getPixelPacking()
*/
typedef uint32_t ANPColor;
#define ANPColor_ASHIFT 24
#define ANPColor_RSHIFT 16
#define ANPColor_GSHIFT 8
#define ANPColor_BSHIFT 0
#define ANP_MAKE_COLOR(a, r, g, b) \
(((a) << ANPColor_ASHIFT) | \
((r) << ANPColor_RSHIFT) | \
((g) << ANPColor_GSHIFT) | \
((b) << ANPColor_BSHIFT))
enum ANPPaintFlag {
kAntiAlias_ANPPaintFlag = 1 << 0,
kFilterBitmap_ANPPaintFlag = 1 << 1,
kDither_ANPPaintFlag = 1 << 2,
kUnderlineText_ANPPaintFlag = 1 << 3,
kStrikeThruText_ANPPaintFlag = 1 << 4,
kFakeBoldText_ANPPaintFlag = 1 << 5,
};
typedef uint32_t ANPPaintFlags;
enum ANPPaintStyles {
kFill_ANPPaintStyle = 0,
kStroke_ANPPaintStyle = 1,
kFillAndStroke_ANPPaintStyle = 2
};
typedef int32_t ANPPaintStyle;
enum ANPPaintCaps {
kButt_ANPPaintCap = 0,
kRound_ANPPaintCap = 1,
kSquare_ANPPaintCap = 2
};
typedef int32_t ANPPaintCap;
enum ANPPaintJoins {
kMiter_ANPPaintJoin = 0,
kRound_ANPPaintJoin = 1,
kBevel_ANPPaintJoin = 2
};
typedef int32_t ANPPaintJoin;
enum ANPPaintAligns {
kLeft_ANPPaintAlign = 0,
kCenter_ANPPaintAlign = 1,
kRight_ANPPaintAlign = 2
};
typedef int32_t ANPPaintAlign;
enum ANPTextEncodings {
kUTF8_ANPTextEncoding = 0,
kUTF16_ANPTextEncoding = 1,
};
typedef int32_t ANPTextEncoding;
enum ANPTypefaceStyles {
kBold_ANPTypefaceStyle = 1 << 0,
kItalic_ANPTypefaceStyle = 1 << 1
};
typedef uint32_t ANPTypefaceStyle;
typedef uint32_t ANPFontTableTag;
struct ANPFontMetrics {
/** The greatest distance above the baseline for any glyph (will be <= 0) */
float fTop;
/** The recommended distance above the baseline (will be <= 0) */
float fAscent;
/** The recommended distance below the baseline (will be >= 0) */
float fDescent;
/** The greatest distance below the baseline for any glyph (will be >= 0) */
float fBottom;
/** The recommended distance to add between lines of text (will be >= 0) */
float fLeading;
};
struct ANPTypefaceInterfaceV0 : ANPInterface {
/** Return a new reference to the typeface that most closely matches the
requested name and style. Pass null as the name to return
the default font for the requested style. Will never return null
The 5 generic font names "serif", "sans-serif", "monospace", "cursive",
"fantasy" are recognized, and will be mapped to their logical font
automatically by this call.
@param name May be NULL. The name of the font family.
@param style The style (normal, bold, italic) of the typeface.
@return reference to the closest-matching typeface. Caller must call
unref() when they are done with the typeface.
*/
ANPTypeface* (*createFromName)(const char name[], ANPTypefaceStyle);
/** Return a new reference to the typeface that most closely matches the
requested typeface and specified Style. Use this call if you want to
pick a new style from the same family of the existing typeface.
If family is NULL, this selects from the default font's family.
@param family May be NULL. The name of the existing type face.
@param s The style (normal, bold, italic) of the type face.
@return reference to the closest-matching typeface. Call must call
unref() when they are done.
*/
ANPTypeface* (*createFromTypeface)(const ANPTypeface* family,
ANPTypefaceStyle);
/** Return the owner count of the typeface. A newly created typeface has an
owner count of 1. When the owner count is reaches 0, the typeface is
deleted.
*/
int32_t (*getRefCount)(const ANPTypeface*);
/** Increment the owner count on the typeface
*/
void (*ref)(ANPTypeface*);
/** Decrement the owner count on the typeface. When the count goes to 0,
the typeface is deleted.
*/
void (*unref)(ANPTypeface*);
/** Return the style bits for the specified typeface
*/
ANPTypefaceStyle (*getStyle)(const ANPTypeface*);
/** Some fonts are stored in files. If that is true for the fontID, then
this returns the byte length of the full file path. If path is not null,
then the full path is copied into path (allocated by the caller), up to
length bytes. If index is not null, then it is set to the truetype
collection index for this font, or 0 if the font is not in a collection.
Note: getFontPath does not assume that path is a null-terminated string,
so when it succeeds, it only copies the bytes of the file name and
nothing else (i.e. it copies exactly the number of bytes returned by the
function. If the caller wants to treat path[] as a C string, it must be
sure that it is allocated at least 1 byte larger than the returned size,
and it must copy in the terminating 0.
If the fontID does not correspond to a file, then the function returns
0, and the path and index parameters are ignored.
@param fontID The font whose file name is being queried
@param path Either NULL, or storage for receiving up to length bytes
of the font's file name. Allocated by the caller.
@param length The maximum space allocated in path (by the caller).
Ignored if path is NULL.
@param index Either NULL, or receives the TTC index for this font.
If the font is not a TTC, then will be set to 0.
@return The byte length of th font's file name, or 0 if the font is not
baked by a file.
*/
int32_t (*getFontPath)(const ANPTypeface*, char path[], int32_t length,
int32_t* index);
/** Return a UTF8 encoded path name for the font directory, or NULL if not
supported. If returned, this string address will be valid for the life
of the plugin instance. It will always end with a '/' character.
*/
const char* (*getFontDirectoryPath)();
};
struct ANPPaintInterfaceV0 : ANPInterface {
/** Return a new paint object, which holds all of the color and style
attributes that affect how things (geometry, text, bitmaps) are drawn
in a ANPCanvas.
The paint that is returned is not tied to any particular plugin
instance, but it must only be accessed from one thread at a time.
*/
ANPPaint* (*newPaint)();
void (*deletePaint)(ANPPaint*);
ANPPaintFlags (*getFlags)(const ANPPaint*);
void (*setFlags)(ANPPaint*, ANPPaintFlags);
ANPColor (*getColor)(const ANPPaint*);
void (*setColor)(ANPPaint*, ANPColor);
ANPPaintStyle (*getStyle)(const ANPPaint*);
void (*setStyle)(ANPPaint*, ANPPaintStyle);
float (*getStrokeWidth)(const ANPPaint*);
float (*getStrokeMiter)(const ANPPaint*);
ANPPaintCap (*getStrokeCap)(const ANPPaint*);
ANPPaintJoin (*getStrokeJoin)(const ANPPaint*);
void (*setStrokeWidth)(ANPPaint*, float);
void (*setStrokeMiter)(ANPPaint*, float);
void (*setStrokeCap)(ANPPaint*, ANPPaintCap);
void (*setStrokeJoin)(ANPPaint*, ANPPaintJoin);
ANPTextEncoding (*getTextEncoding)(const ANPPaint*);
ANPPaintAlign (*getTextAlign)(const ANPPaint*);
float (*getTextSize)(const ANPPaint*);
float (*getTextScaleX)(const ANPPaint*);
float (*getTextSkewX)(const ANPPaint*);
void (*setTextEncoding)(ANPPaint*, ANPTextEncoding);
void (*setTextAlign)(ANPPaint*, ANPPaintAlign);
void (*setTextSize)(ANPPaint*, float);
void (*setTextScaleX)(ANPPaint*, float);
void (*setTextSkewX)(ANPPaint*, float);
/** Return the typeface ine paint, or null if there is none. This does not
modify the owner count of the returned typeface.
*/
ANPTypeface* (*getTypeface)(const ANPPaint*);
/** Set the paint's typeface. If the paint already had a non-null typeface,
its owner count is decremented. If the new typeface is non-null, its
owner count is incremented.
*/
void (*setTypeface)(ANPPaint*, ANPTypeface*);
/** Return the width of the text. If bounds is not null, return the bounds
of the text in that rectangle.
*/
float (*measureText)(ANPPaint*, const void* text, uint32_t byteLength,
ANPRectF* bounds);
/** Return the number of unichars specifed by the text.
If widths is not null, returns the array of advance widths for each
unichar.
If bounds is not null, returns the array of bounds for each unichar.
*/
int (*getTextWidths)(ANPPaint*, const void* text, uint32_t byteLength,
float widths[], ANPRectF bounds[]);
/** Return in metrics the spacing values for text, respecting the paint's
typeface and pointsize, and return the spacing between lines
(descent - ascent + leading). If metrics is NULL, it will be ignored.
*/
float (*getFontMetrics)(ANPPaint*, ANPFontMetrics* metrics);
};
struct ANPCanvasInterfaceV0 : ANPInterface {
/** Return a canvas that will draw into the specified bitmap. Note: the
canvas copies the fields of the bitmap, so it need not persist after
this call, but the canvas DOES point to the same pixel memory that the
bitmap did, so the canvas should not be used after that pixel memory
goes out of scope. In the case of creating a canvas to draw into the
pixels provided by kDraw_ANPEventType, those pixels are only while
handling that event.
The canvas that is returned is not tied to any particular plugin
instance, but it must only be accessed from one thread at a time.
*/
ANPCanvas* (*newCanvas)(const ANPBitmap*);
void (*deleteCanvas)(ANPCanvas*);
void (*save)(ANPCanvas*);
void (*restore)(ANPCanvas*);
void (*translate)(ANPCanvas*, float tx, float ty);
void (*scale)(ANPCanvas*, float sx, float sy);
void (*rotate)(ANPCanvas*, float degrees);
void (*skew)(ANPCanvas*, float kx, float ky);
void (*concat)(ANPCanvas*, const ANPMatrix*);
void (*clipRect)(ANPCanvas*, const ANPRectF*);
void (*clipPath)(ANPCanvas*, const ANPPath*);
/** Return the current matrix on the canvas
*/
void (*getTotalMatrix)(ANPCanvas*, ANPMatrix*);
/** Return the current clip bounds in local coordinates, expanding it to
account for antialiasing edge effects if aa is true. If the
current clip is empty, return false and ignore the bounds argument.
*/
bool (*getLocalClipBounds)(ANPCanvas*, ANPRectF* bounds, bool aa);
/** Return the current clip bounds in device coordinates in bounds. If the
current clip is empty, return false and ignore the bounds argument.
*/
bool (*getDeviceClipBounds)(ANPCanvas*, ANPRectI* bounds);
void (*drawColor)(ANPCanvas*, ANPColor);
void (*drawPaint)(ANPCanvas*, const ANPPaint*);
void (*drawLine)(ANPCanvas*, float x0, float y0, float x1, float y1,
const ANPPaint*);
void (*drawRect)(ANPCanvas*, const ANPRectF*, const ANPPaint*);
void (*drawOval)(ANPCanvas*, const ANPRectF*, const ANPPaint*);
void (*drawPath)(ANPCanvas*, const ANPPath*, const ANPPaint*);
void (*drawText)(ANPCanvas*, const void* text, uint32_t byteLength,
float x, float y, const ANPPaint*);
void (*drawPosText)(ANPCanvas*, const void* text, uint32_t byteLength,
const float xy[], const ANPPaint*);
void (*drawBitmap)(ANPCanvas*, const ANPBitmap*, float x, float y,
const ANPPaint*);
void (*drawBitmapRect)(ANPCanvas*, const ANPBitmap*,
const ANPRectI* src, const ANPRectF* dst,
const ANPPaint*);
};
struct ANPWindowInterfaceV0 : ANPInterface {
/** Registers a set of rectangles that the plugin would like to keep on
screen. The rectangles are listed in order of priority with the highest
priority rectangle in location rects[0]. The browser will attempt to keep
as many of the rectangles on screen as possible and will scroll them into
view in response to the invocation of this method and other various events.
The count specifies how many rectangles are in the array. If the count is
zero it signals the browser that any existing rectangles should be cleared
and no rectangles will be tracked.
*/
void (*setVisibleRects)(NPP instance, const ANPRectI rects[], int32_t count);
/** Clears any rectangles that are being tracked as a result of a call to
setVisibleRects. This call is equivalent to setVisibleRect(inst, NULL, 0).
*/
void (*clearVisibleRects)(NPP instance);
/** Given a boolean value of true the device will be requested to provide
a keyboard. A value of false will result in a request to hide the
keyboard. Further, the on-screen keyboard will not be displayed if a
physical keyboard is active.
*/
void (*showKeyboard)(NPP instance, bool value);
/** Called when a plugin wishes to enter into full screen mode. The plugin's
Java class (defined in the plugin's apk manifest) will be called
asynchronously to provide a View object to be displayed full screen.
*/
void (*requestFullScreen)(NPP instance);
/** Called when a plugin wishes to exit from full screen mode. As a result,
the plugin's full screen view will be discarded by the view system.
*/
void (*exitFullScreen)(NPP instance);
/** Called when a plugin wishes to be zoomed and centered in the current view.
*/
void (*requestCenterFitZoom)(NPP instance);
};
enum ANPScreenOrientations {
/** No preference specified: let the system decide the best orientation.
*/
kDefault_ANPScreenOrientation = 0,
/** Would like to have the screen in a landscape orientation, but it will
not allow for 180 degree rotations.
*/
kFixedLandscape_ANPScreenOrientation = 1,
/** Would like to have the screen in a portrait orientation, but it will
not allow for 180 degree rotations.
*/
kFixedPortrait_ANPScreenOrientation = 2,
/** Would like to have the screen in landscape orientation, but can use the
sensor to change which direction the screen is facing.
*/
kLandscape_ANPScreenOrientation = 3,
/** Would like to have the screen in portrait orientation, but can use the
sensor to change which direction the screen is facing.
*/
kPortrait_ANPScreenOrientation = 4
};
typedef int32_t ANPScreenOrientation;
struct ANPWindowInterfaceV2 : ANPWindowInterfaceV0 {
/** Returns a rectangle representing the visible area of the plugin on
screen. The coordinates are relative to the size of the plugin in the
document and therefore will never be negative or exceed the plugin's size.
*/
ANPRectI (*visibleRect)(NPP instance);
/** Called when the plugin wants to specify a particular screen orientation
when entering into full screen mode. The orientation must be set prior
to entering into full screen. After entering full screen any subsequent
changes will be updated the next time the plugin goes full screen.
*/
void (*requestFullScreenOrientation)(NPP instance, ANPScreenOrientation orientation);
};
///////////////////////////////////////////////////////////////////////////////
enum ANPSampleFormats {
kUnknown_ANPSamleFormat = 0,
kPCM16Bit_ANPSampleFormat = 1,
kPCM8Bit_ANPSampleFormat = 2
};
typedef int32_t ANPSampleFormat;
/** The audio buffer is passed to the callback proc to request more samples.
It is owned by the system, and the callback may read it, but should not
maintain a pointer to it outside of the scope of the callback proc.
*/
struct ANPAudioBuffer {
// RO - repeat what was specified in newTrack()
int32_t channelCount;
// RO - repeat what was specified in newTrack()
ANPSampleFormat format;
/** This buffer is owned by the caller. Inside the callback proc, up to
"size" bytes of sample data should be written into this buffer. The
address is only valid for the scope of a single invocation of the
callback proc.
*/
void* bufferData;
/** On input, specifies the maximum number of bytes that can be written
to "bufferData". On output, specifies the actual number of bytes that
the callback proc wrote into "bufferData".
*/
uint32_t size;
};
enum ANPAudioEvents {
/** This event is passed to the callback proc when the audio-track needs
more sample data written to the provided buffer parameter.
*/
kMoreData_ANPAudioEvent = 0,
/** This event is passed to the callback proc if the audio system runs out
of sample data. In this event, no buffer parameter will be specified
(i.e. NULL will be passed to the 3rd parameter).
*/
kUnderRun_ANPAudioEvent = 1
};
typedef int32_t ANPAudioEvent;
/** Called to feed sample data to the track. This will be called in a separate
thread. However, you may call trackStop() from the callback (but you
cannot delete the track).
For example, when you have written the last chunk of sample data, you can
immediately call trackStop(). This will take effect after the current
buffer has been played.
The "user" parameter is the same value that was passed to newTrack()
*/
typedef void (*ANPAudioCallbackProc)(ANPAudioEvent event, void* user,
ANPAudioBuffer* buffer);
struct ANPAudioTrack; // abstract type for audio tracks
struct ANPAudioTrackInterfaceV0 : ANPInterface {
/** Create a new audio track, or NULL on failure. The track is initially in
the stopped state and therefore ANPAudioCallbackProc will not be called
until the track is started.
*/
ANPAudioTrack* (*newTrack)(uint32_t sampleRate, // sampling rate in Hz
ANPSampleFormat,
int channelCount, // MONO=1, STEREO=2
ANPAudioCallbackProc,
void* user);
/** Deletes a track that was created using newTrack. The track can be
deleted in any state and it waits for the ANPAudioCallbackProc thread
to exit before returning.
*/
void (*deleteTrack)(ANPAudioTrack*);
void (*start)(ANPAudioTrack*);
void (*pause)(ANPAudioTrack*);
void (*stop)(ANPAudioTrack*);
/** Returns true if the track is not playing (e.g. pause or stop was called,
or start was never called.
*/
bool (*isStopped)(ANPAudioTrack*);
};
struct ANPAudioTrackInterfaceV1 : ANPAudioTrackInterfaceV0 {
/** Returns the track's latency in milliseconds. */
uint32_t (*trackLatency)(ANPAudioTrack*);
};
///////////////////////////////////////////////////////////////////////////////
// DEFINITION OF VALUES PASSED THROUGH NPP_HandleEvent
enum ANPEventTypes {
kNull_ANPEventType = 0,
kKey_ANPEventType = 1,
/** Mouse events are triggered by either clicking with the navigational pad
or by tapping the touchscreen (if the kDown_ANPTouchAction is handled by
the plugin then no mouse event is generated). The kKey_ANPEventFlag has
to be set to true in order to receive these events.
*/
kMouse_ANPEventType = 2,
/** Touch events are generated when the user touches on the screen. The
kTouch_ANPEventFlag has to be set to true in order to receive these
events.
*/
kTouch_ANPEventType = 3,
/** Only triggered by a plugin using the kBitmap_ANPDrawingModel. This event
signals that the plugin needs to redraw itself into the provided bitmap.
*/
kDraw_ANPEventType = 4,
kLifecycle_ANPEventType = 5,
/** This event type is completely defined by the plugin.
When creating an event, the caller must always set the first
two fields, the remaining data is optional.
ANPEvent evt;
evt.inSize = sizeof(ANPEvent);
evt.eventType = kCustom_ANPEventType
// other data slots are optional
evt.other[] = ...;
To post a copy of the event, call
eventInterface->postEvent(myNPPInstance, &evt);
That call makes a copy of the event struct, and post that on the event
queue for the plugin.
*/
kCustom_ANPEventType = 6,
};
typedef int32_t ANPEventType;
enum ANPKeyActions {
kDown_ANPKeyAction = 0,
kUp_ANPKeyAction = 1,
};
typedef int32_t ANPKeyAction;
#include "ANPKeyCodes.h"
typedef int32_t ANPKeyCode;
enum ANPKeyModifiers {
kAlt_ANPKeyModifier = 1 << 0,
kShift_ANPKeyModifier = 1 << 1,
};
// bit-field containing some number of ANPKeyModifier bits
typedef uint32_t ANPKeyModifier;
enum ANPMouseActions {
kDown_ANPMouseAction = 0,
kUp_ANPMouseAction = 1,
};
typedef int32_t ANPMouseAction;
enum ANPTouchActions {
/** This occurs when the user first touches on the screen. As such, this
action will always occur prior to any of the other touch actions. If
the plugin chooses to not handle this action then no other events
related to that particular touch gesture will be generated.
*/
kDown_ANPTouchAction = 0,
kUp_ANPTouchAction = 1,
kMove_ANPTouchAction = 2,
kCancel_ANPTouchAction = 3,
// The web view will ignore the return value from the following actions
kLongPress_ANPTouchAction = 4,
kDoubleTap_ANPTouchAction = 5,
};
typedef int32_t ANPTouchAction;
enum ANPLifecycleActions {
/** The web view containing this plugin has been paused. See documentation
on the android activity lifecycle for more information.
*/
kPause_ANPLifecycleAction = 0,
/** The web view containing this plugin has been resumed. See documentation
on the android activity lifecycle for more information.
*/
kResume_ANPLifecycleAction = 1,
/** The plugin has focus and is now the recipient of input events (e.g. key,
touch, etc.)
*/
kGainFocus_ANPLifecycleAction = 2,
/** The plugin has lost focus and will not receive any input events until it
regains focus. This event is always preceded by a GainFocus action.
*/
kLoseFocus_ANPLifecycleAction = 3,
/** The browser is running low on available memory and is requesting that
the plugin free any unused/inactive resources to prevent a performance
degradation.
*/
kFreeMemory_ANPLifecycleAction = 4,
/** The page has finished loading. This happens when the page's top level
frame reports that it has completed loading.
*/
kOnLoad_ANPLifecycleAction = 5,
/** The browser is honoring the plugin's request to go full screen. Upon
returning from this event the browser will resize the plugin's java
surface to full-screen coordinates.
*/
kEnterFullScreen_ANPLifecycleAction = 6,
/** The browser has exited from full screen mode. Immediately prior to
sending this event the browser has resized the plugin's java surface to
its original coordinates.
*/
kExitFullScreen_ANPLifecycleAction = 7,
/** The plugin is visible to the user on the screen. This event will always
occur after a kOffScreen_ANPLifecycleAction event.
*/
kOnScreen_ANPLifecycleAction = 8,
/** The plugin is no longer visible to the user on the screen. This event
will always occur prior to an kOnScreen_ANPLifecycleAction event.
*/
kOffScreen_ANPLifecycleAction = 9,
};
typedef uint32_t ANPLifecycleAction;
/* This is what is passed to NPP_HandleEvent() */
struct ANPEvent {
uint32_t inSize; // size of this struct in bytes
ANPEventType eventType;
// use based on the value in eventType
union {
struct {
ANPKeyAction action;
ANPKeyCode nativeCode;
int32_t virtualCode; // windows virtual key code
ANPKeyModifier modifiers;
int32_t repeatCount; // 0 for initial down (or up)
int32_t unichar; // 0 if there is no value
} key;
struct {
ANPMouseAction action;
int32_t x; // relative to your "window" (0...width)
int32_t y; // relative to your "window" (0...height)
} mouse;
struct {
ANPTouchAction action;
ANPKeyModifier modifiers;
int32_t x; // relative to your "window" (0...width)
int32_t y; // relative to your "window" (0...height)
} touch;
struct {
ANPLifecycleAction action;
} lifecycle;
struct {
ANPDrawingModel model;
// relative to (0,0) in top-left of your plugin
ANPRectI clip;
// use based on the value in model
union {
ANPBitmap bitmap;
struct {
int32_t width;
int32_t height;
} surfaceSize;
} data;
} draw;
} data;
};
struct ANPEventInterfaceV0 : ANPInterface {
/** Post a copy of the specified event to the plugin. The event will be
delivered to the plugin in its main thread (the thread that receives
other ANPEvents). If, after posting before delivery, the NPP instance
is torn down, the event will be discarded.
*/
void (*postEvent)(NPP inst, const ANPEvent* event);
};
struct ANPSurfaceInterfaceV0 : ANPInterface {
/** Locks the surface from manipulation by other threads and provides a bitmap
to be written to. The dirtyRect param specifies which portion of the
bitmap will be written to. If the dirtyRect is NULL then the entire
surface will be considered dirty. If the lock was successful the function
will return true and the bitmap will be set to point to a valid bitmap.
If not the function will return false and the bitmap will be set to NULL.
*/
bool (*lock)(JNIEnv* env, jobject surface, ANPBitmap* bitmap, ANPRectI* dirtyRect);
/** Given a locked surface handle (i.e. result of a successful call to lock)
the surface is unlocked and the contents of the bitmap, specifically
those inside the dirtyRect are written to the screen.
*/
void (*unlock)(JNIEnv* env, jobject surface);
};
/**
* TODO should we not use EGL and GL data types for ABI safety?
*/
struct ANPTextureInfo {
GLuint textureId;
uint32_t width;
uint32_t height;
GLenum internalFormat;
};
typedef void* ANPEGLContext;
struct ANPOpenGLInterfaceV0 : ANPInterface {
ANPEGLContext (*acquireContext)(NPP instance);
ANPTextureInfo (*lockTexture)(NPP instance);
void (*releaseTexture)(NPP instance, const ANPTextureInfo*);
/**
* Invert the contents of the plugin on the y-axis.
* default is to not be inverted (i.e. use OpenGL coordinates)
*/
void (*invertPluginContent)(NPP instance, bool isContentInverted);
};
enum ANPPowerStates {
kDefault_ANPPowerState = 0,
kScreenOn_ANPPowerState = 1
};
typedef int32_t ANPPowerState;
struct ANPSystemInterfaceV1 : ANPInterface {
/** Return the path name for the current Application's plugin data directory,
or NULL if not supported
*/
const char* (*getApplicationDataDirectory)();
/** A helper function to load java classes from the plugin's apk. The
function looks for a class given the fully qualified and null terminated
string representing the className. For example,
const char* className = "com.android.mypackage.MyClass";
If the class cannot be found or there is a problem loading the class
NULL will be returned.
*/
jclass (*loadJavaClass)(NPP instance, const char* className);
void (*setPowerState)(NPP instance, ANPPowerState powerState);
};
struct ANPSystemInterfaceV2 : ANPInterface {
/** Return the path name for the current Application's plugin data directory,
or NULL if not supported. This directory will change depending on whether
or not the plugin is found within an incognito tab.
*/
const char* (*getApplicationDataDirectory)(NPP instance);
// redeclaration of existing features
jclass (*loadJavaClass)(NPP instance, const char* className);
void (*setPowerState)(NPP instance, ANPPowerState powerState);
};
typedef void* ANPNativeWindow;
/** Called to notify the plugin that a video frame has been composited by the
* browser for display. This will be called in a separate thread and as such
* you cannot call releaseNativeWindow from the callback.
*
* The timestamp is in nanoseconds, and is monotonically increasing.
*/
typedef void (*ANPVideoFrameCallbackProc)(ANPNativeWindow* window, int64_t timestamp);
struct ANPVideoInterfaceV1 : ANPInterface {
/**
* Constructs a new native window to be used for rendering video content.
*
* Subsequent calls will produce new windows, but may also return NULL after
* n attempts if the browser has reached it's limit. Further, if the browser
* is unable to acquire the window quickly it may also return NULL in order
* to not prevent the plugin from executing. A subsequent call will then
* return the window if it is avaiable.
*
* NOTE: The hardware may fail if you try to decode more than the allowable
* number of videos supported on that device.
*/
ANPNativeWindow (*acquireNativeWindow)(NPP instance);
/**
* Sets the rectangle that specifies where the video content is to be drawn.
* The dimensions are in document space. Further, if the rect is NULL the
* browser will not attempt to draw the window, therefore do not set the
* dimensions until you queue the first buffer in the window.
*/
void (*setWindowDimensions)(NPP instance, const ANPNativeWindow window, const ANPRectF* dimensions);
/**
*/
void (*releaseNativeWindow)(NPP instance, ANPNativeWindow window);
/** Set a callback to be notified when an ANPNativeWindow is composited by
* the browser.
*/
void (*setFramerateCallback)(NPP instance, const ANPNativeWindow window, ANPVideoFrameCallbackProc);
};
struct ANPNativeWindowInterfaceV0 : ANPInterface {
/**
* Constructs a new native window to be used for rendering plugin content.
*
* Subsequent calls will return the original constructed window. Further, if
* the browser is unable to acquire the window quickly it may return NULL in
* order to not block the plugin indefinitely. A subsequent call will then
* return the window if it is available.
*/
ANPNativeWindow (*acquireNativeWindow)(NPP instance);
/**
* Invert the contents of the plugin on the y-axis.
* default is to not be inverted (e.g. use OpenGL coordinates)
*/
void (*invertPluginContent)(NPP instance, bool isContentInverted);
};
#endif
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