diff options
Diffstat (limited to 'WebKit/android/plugins/android_npapi.h')
| -rw-r--r-- | WebKit/android/plugins/android_npapi.h | 620 |
1 files changed, 620 insertions, 0 deletions
diff --git a/WebKit/android/plugins/android_npapi.h b/WebKit/android/plugins/android_npapi.h new file mode 100644 index 0000000..f64c8ce --- /dev/null +++ b/WebKit/android/plugins/android_npapi.h @@ -0,0 +1,620 @@ +/* + * 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. + */ + +/* 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 "npapi.h" + +/////////////////////////////////////////////////////////////////////////////// +// General types + +enum ANPBitmapFormats { + kUnknown_ANPBitmapFormat = 0, + kRGBA_8888_ANPBitmapFormat = 1, + kRGB_565_ANPBitmapFormat = 2 +}; +typedef int32_t ANPBitmapFormat; + +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 ANPRegion; +struct ANPTypeface; + +enum ANPMatrixFlags { + kIdentity_ANPMatrixFlag = 0, + kTranslate_ANPMatrixFlag = 0x01, + kScale_ANPMatrixFlag = 0x02, + kAffine_ANPMatrixFlag = 0x04, + kPerspective_ANPMatrixFlag = 0x08, +}; +typedef uint32_t ANPMatrixFlag; + +/////////////////////////////////////////////////////////////////////////////// +// 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 kTypefaceInterfaceV0_ANPGetValue ((NPNVariable)1005) +#define kWindowInterfaceV0_ANPGetValue ((NPNVariable)1006) + +/* queries for which drawing model is desired (for the draw event) + + Should be called inside NPP_New(...) + + NPN_GetValue(inst, ANPSupportedDrawingModel_EnumValue, uint32_t* bits) + */ +#define kSupportedDrawingModel_ANPGetValue ((NPNVariable)2000) + +/////////////////////////////////////////////////////////////////////////////// +// NPN_GetValue + +/** Reqeust to set the drawing model. + + NPN_SetValue(inst, ANPRequestDrawingModel_EnumValue, (void*)foo_DrawingModel) + */ +#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 = 0, +}; +typedef int32_t ANPDrawingModel; + +/* Interfaces provide additional functionality to the plugin via function ptrs. + Once an interface is retrived, 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)(NPP instance, ANPLogType, const char format[], ...); +}; + +struct ANPMatrixInterfaceV0 : ANPInterface { + /* Return a new identity matrix + */ + ANPMatrix* (*newMatrix)(); + /* Delete a matrix previously allocated by newMatrix() + */ + void (*deleteMatrix)(ANPMatrix*); + + ANPMatrixFlag (*getFlags)(const ANPMatrix*); + + void (*copy)(ANPMatrix* dst, const ANPMatrix* src); + + /* Return the matrix values in a float array (allcoated by the caller), + where the values are treated as follows: + w = x * [6] + y * [7] + [8]; + x' = (x * [0] + y * [1] + [2]) / w; + y' = (x * [3] + y * [4] + [5]) / w; + */ + void (*get3x3)(const ANPMatrix*, float[9]); + /* Initialize the matrix from values in a float array, + where the values are treated as follows: + w = x * [6] + y * [7] + [8]; + x' = (x * [0] + y * [1] + [2]) / w; + y' = (x * [3] + y * [4] + [5]) / w; + */ + void (*set3x3)(ANPMatrix*, const float[9]); + + void (*setIdentity)(ANPMatrix*); + void (*preTranslate)(ANPMatrix*, float tx, float ty); + void (*postTranslate)(ANPMatrix*, float tx, float ty); + void (*preScale)(ANPMatrix*, float sx, float sy); + void (*postScale)(ANPMatrix*, float sx, float sy); + void (*preSkew)(ANPMatrix*, float kx, float ky); + void (*postSkew)(ANPMatrix*, float kx, float ky); + void (*preRotate)(ANPMatrix*, float degrees); + void (*postRotate)(ANPMatrix*, float degrees); + void (*preConcat)(ANPMatrix*, const ANPMatrix*); + void (*postConcat)(ANPMatrix*, const ANPMatrix*); + + /* Return true if src is invertible, and if so, return its inverse in dst. + If src is not invertible, return false and ignore dst. + */ + bool (*invert)(ANPMatrix* dst, const ANPMatrix* src); + + /* Transform the x,y pairs in src[] by this matrix, and store the results + in dst[]. The count parameter is treated as the number of pairs in the + array. It is legal for src and dst to point to the same memory, but + illegal for the two arrays to partially overlap. + */ + void (*mapPoints)(ANPMatrix*, float dst[], const float src[], + int32_t count); +}; + +typedef uint32_t ANPColor; +#define ANP_MAKE_COLOR(a, r, g, b) \ + (((a) << 24) | ((r) << 16) | ((g) << 8) | (b)) + +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; + +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 + + @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*); +}; + +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 (*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 { + /** Given the window field from the NPWindow struct, and an optional rect + describing the subset of the window that will be drawn to (may be null) + return true if the bitmap for that window can be accessed, and if so, + fill out the specified ANPBitmap to point to the window's pixels. + + When drawing is complete, call unlock(window) + */ + bool (*lockRect)(void* window, const ANPRectI* inval, ANPBitmap*); + /** The same as lockRect, but takes a region instead of a rect to specify + the area that will be changed/drawn. + */ + bool (*lockRegion)(void* window, const ANPRegion* inval, ANPBitmap*); + /** Given a successful call to lock(window, inval, &bitmap), call unlock + to release access to the pixels, and allow the browser to display the + results. If lock returned false, unlock should not be called. + */ + void (*unlock)(void* window); +}; + +/////////////////////////////////////////////////////////////////////////////// + +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. + */ + ANPAudioTrack* (*newTrack)(uint32_t sampleRate, // sampling rate in Hz + ANPSampleFormat, + int channelCount, // MONO=1, STEREO=2 + ANPAudioCallbackProc, + void* user); + 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*); +}; + +/////////////////////////////////////////////////////////////////////////////// +// HandleEvent + +enum ANPEventTypes { + kNull_ANPEventType = 0, + kKey_ANPEventType = 1, + kTouch_ANPEventType = 2, + kDraw_ANPEventType = 3, +}; +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 ANPTouchActions { + kDown_ANPTouchAction = 0, + kUp_ANPTouchAction = 1, +}; +typedef int32_t ANPTouchAction; + +struct ANPDrawContext { + ANPDrawingModel model; + // relative to (0,0) in top-left of your plugin + ANPRectI clip; + // use based on the value in model + union { + ANPBitmap bitmap; + } data; +}; + +/* 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 { + ANPTouchAction action; + ANPKeyModifier modifiers; + int32_t x; // relative to your "window" (0...width) + int32_t y; // relative to your "window" (0...height) + } touch; + ANPDrawContext drawContext; + int32_t other[8]; + } data; +}; + +#endif + |