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Commit d4672a80 authored by Leon Scroggins III's avatar Leon Scroggins III
Browse files

Add NDK methods for HARDWARE Bitmaps 

Bug: 135133301
Test: I2c1e58c41e49c72fb4bdbc64989da103885d34bf

Add a flag for AndroidBitmapInfo.flags that represents whether the
Bitmap has Config.HARDWARE.

Add a method for retrieving the AHardwareBuffer if it is a HARDWARE
Bitmap.

Change-Id: I69b78491bc29e770d863aa01752e8c923298afb3
parent 46bb0aec

include/android/bitmap.h

+30 −1
Original line number Diff line number Diff line
@@ -79,6 +79,14 @@ enum { 
    ANDROID_BITMAP_FLAGS_ALPHA_SHIFT    = 0,

};



enum {

    /** If this bit is set in AndroidBitmapInfo.flags, the Bitmap uses the

      * HARDWARE Config, and its AHardwareBuffer can be retrieved via

      * AndroidBitmap_getHardwareBuffer.

      */

    ANDROID_BITMAP_FLAGS_IS_HARDWARE = 1 << 31,

};



/** Bitmap info, see AndroidBitmap_getInfo(). */

typedef struct {

    /** The bitmap width in pixels. */
@@ -90,7 +98,9 @@ typedef struct { 
    /** The bitmap pixel format. See {@link AndroidBitmapFormat} */

    int32_t     format;

    /** Two bits are used to encode alpha. Use ANDROID_BITMAP_FLAGS_ALPHA_MASK

      * and ANDROID_BITMAP_FLAGS_ALPHA_SHIFT to retrieve them. */

      * and ANDROID_BITMAP_FLAGS_ALPHA_SHIFT to retrieve them. One bit is used

      * to encode whether the Bitmap uses the HARDWARE Config. Use

      * ANDROID_BITMAP_FLAGS_IS_HARDWARE to know.*/

    uint32_t    flags;

} AndroidBitmapInfo;
@@ -210,6 +220,25 @@ int AndroidBitmap_compress(const AndroidBitmapInfo* info, 
                           void* userContext,

                           AndroidBitmap_compress_write_fn fn) __INTRODUCED_IN(30);



struct AHardwareBuffer;



/**

 *  Retrieve the native object associated with a HARDWARE Bitmap.

 *

 *  Client must not modify it while a Bitmap is wrapping it.

 *

 *  @param bitmap Handle to an android.graphics.Bitmap.

 *  @param outBuffer On success, is set to a pointer to the

 *         AHardwareBuffer associated with bitmap. This acquires

 *         a reference on the buffer, and the client must call

 *         AHardwareBuffer_release when finished with it.

 *  @return AndroidBitmap functions result code.

 *          ANDROID_BITMAP_RESULT_BAD_PARAMETER if bitmap is not a

 *          HARDWARE Bitmap.

 */

int AndroidBitmap_getHardwareBuffer(JNIEnv* env, jobject bitmap,

        AHardwareBuffer** outBuffer) __INTRODUCED_IN(30);



#endif // __ANDROID_API__ >= 30



#ifdef __cplusplus