Add new HardwareBuffer usages and formats. (7c37b90a) · Commits · e / os / android_frameworks_base

api/current.txt

+8 −0

Original line number	Diff line number	Diff line
		@@ -15233,18 +15233,26 @@ package android.hardware {
		method public void writeToParcel(android.os.Parcel, int);
		field public static final int BLOB = 33; // 0x21
		field public static final android.os.Parcelable.Creator<android.hardware.HardwareBuffer> CREATOR;
		field public static final int DS_24UI8 = 50; // 0x32
		field public static final int DS_FP32UI8 = 52; // 0x34
		field public static final int D_16 = 48; // 0x30
		field public static final int D_24 = 49; // 0x31
		field public static final int D_FP32 = 51; // 0x33
		field public static final int RGBA_1010102 = 43; // 0x2b
		field public static final int RGBA_8888 = 1; // 0x1
		field public static final int RGBA_FP16 = 22; // 0x16
		field public static final int RGBX_8888 = 2; // 0x2
		field public static final int RGB_565 = 4; // 0x4
		field public static final int RGB_888 = 3; // 0x3
		field public static final int S_UI8 = 53; // 0x35
		field public static final long USAGE_CPU_READ_OFTEN = 3L; // 0x3L
		field public static final long USAGE_CPU_READ_RARELY = 2L; // 0x2L
		field public static final long USAGE_CPU_WRITE_OFTEN = 48L; // 0x30L
		field public static final long USAGE_CPU_WRITE_RARELY = 32L; // 0x20L
		field public static final long USAGE_GPU_COLOR_OUTPUT = 512L; // 0x200L
		field public static final long USAGE_GPU_CUBE_MAP = 33554432L; // 0x2000000L
		field public static final long USAGE_GPU_DATA_BUFFER = 16777216L; // 0x1000000L
		field public static final long USAGE_GPU_MIPMAP_COMPLETE = 67108864L; // 0x4000000L
		field public static final long USAGE_GPU_SAMPLED_IMAGE = 256L; // 0x100L
		field public static final long USAGE_PROTECTED_CONTENT = 16384L; // 0x4000L
		field public static final long USAGE_SENSOR_DIRECT_DATA = 8388608L; // 0x800000L

core/java/android/hardware/HardwareBuffer.java

+40 −16

Original line number	Diff line number	Diff line
		@@ -25,11 +25,11 @@ import android.os.Parcelable;
		import dalvik.annotation.optimization.FastNative;
		import dalvik.system.CloseGuard;

		import libcore.util.NativeAllocationRegistry;

		import java.lang.annotation.Retention;
		import java.lang.annotation.RetentionPolicy;

		import libcore.util.NativeAllocationRegistry;

		/**
		* HardwareBuffer wraps a native <code>AHardwareBuffer</code> object, which is a low-level object
		* representing a memory buffer accessible by various hardware units. HardwareBuffer allows sharing
		@@ -42,18 +42,25 @@ import libcore.util.NativeAllocationRegistry;
		public final class HardwareBuffer implements Parcelable, AutoCloseable {
		/** @hide */
		@Retention(RetentionPolicy.SOURCE)
		@IntDef(prefix = { "RGB", "BLOB" }, value = {
		@IntDef(prefix = { "RGB", "BLOB", "D_", "DS_", "S_" }, value = {
		RGBA_8888,
		RGBA_FP16,
		RGBA_1010102,
		RGBX_8888,
		RGB_888,
		RGB_565,
		BLOB
		BLOB,
		D_16,
		D_24,
		DS_24UI8,
		D_FP32,
		DS_FP32UI8,
		S_UI8,
		})
		public @interface Format {
		}

		@Format
		/** Format: 8 bits each red, green, blue, alpha */
		public static final int RGBA_8888 = 1;
		/** Format: 8 bits each red, green, blue, alpha, alpha is always 0xFF */
		@@ -68,6 +75,18 @@ public final class HardwareBuffer implements Parcelable, AutoCloseable {
		public static final int RGBA_1010102 = 0x2b;
		/** Format: opaque format used for raw data transfer; must have a height of 1 */
		public static final int BLOB = 0x21;
		/** Format: 16 bits depth */
		public static final int D_16 = 0x30;
		/** Format: 24 bits depth */
		public static final int D_24 = 0x31;
		/** Format: 24 bits depth, 8 bits stencil */
		public static final int DS_24UI8 = 0x32;
		/** Format: 32 bits depth */
		public static final int D_FP32 = 0x33;
		/** Format: 32 bits depth, 8 bits stencil */
		public static final int DS_FP32UI8 = 0x34;
		/** Format: 8 bits stencil */
		public static final int S_UI8 = 0x35;

		// Note: do not rename, this field is used by native code
		private long mNativeObject;
		@@ -82,9 +101,11 @@ public final class HardwareBuffer implements Parcelable, AutoCloseable {
		@LongDef(flag = true, value = {USAGE_CPU_READ_RARELY, USAGE_CPU_READ_OFTEN,
		USAGE_CPU_WRITE_RARELY, USAGE_CPU_WRITE_OFTEN, USAGE_GPU_SAMPLED_IMAGE,
		USAGE_GPU_COLOR_OUTPUT, USAGE_PROTECTED_CONTENT, USAGE_VIDEO_ENCODE,
		USAGE_GPU_DATA_BUFFER, USAGE_SENSOR_DIRECT_DATA})
		USAGE_GPU_DATA_BUFFER, USAGE_SENSOR_DIRECT_DATA, USAGE_GPU_CUBE_MAP,
		USAGE_GPU_MIPMAP_COMPLETE})
		public @interface Usage {};

		@Usage
		/** Usage: The buffer will sometimes be read by the CPU */
		public static final long USAGE_CPU_READ_RARELY = 2;
		/** Usage: The buffer will often be read by the CPU */
		@@ -107,6 +128,10 @@ public final class HardwareBuffer implements Parcelable, AutoCloseable {
		public static final long USAGE_SENSOR_DIRECT_DATA = 1 << 23;
		/** Usage: The buffer will be used as a shader storage or uniform buffer object */
		public static final long USAGE_GPU_DATA_BUFFER = 1 << 24;
		/** Usage: The buffer will be used as a cube map texture */
		public static final long USAGE_GPU_CUBE_MAP = 1 << 25;
		/** Usage: The buffer contains a complete mipmap hierarchy */
		public static final long USAGE_GPU_MIPMAP_COMPLETE = 1 << 26;

		// The approximate size of a native AHardwareBuffer object.
		private static final long NATIVE_HARDWARE_BUFFER_SIZE = 232;
		@@ -118,15 +143,9 @@ public final class HardwareBuffer implements Parcelable, AutoCloseable {
		*
		* @param width The width in pixels of the buffer
		* @param height The height in pixels of the buffer
		* @param format The format of each pixel, one of {@link #RGBA_8888}, {@link #RGBA_FP16},
		* {@link #RGBX_8888}, {@link #RGB_565}, {@link #RGB_888}, {@link #RGBA_1010102}, {@link #BLOB}
		* @param format The @Format of each pixel
		* @param layers The number of layers in the buffer
		* @param usage Flags describing how the buffer will be used, one of
		* {@link #USAGE_CPU_READ_RARELY}, {@link #USAGE_CPU_READ_OFTEN},
		* {@link #USAGE_CPU_WRITE_RARELY}, {@link #USAGE_CPU_WRITE_OFTEN},
		* {@link #USAGE_GPU_SAMPLED_IMAGE}, {@link #USAGE_GPU_COLOR_OUTPUT},
		* {@link #USAGE_GPU_DATA_BUFFER}, {@link #USAGE_PROTECTED_CONTENT},
		* {@link #USAGE_SENSOR_DIRECT_DATA}, {@link #USAGE_VIDEO_ENCODE}
		* @param usage The @Usage flags describing how the buffer will be used
		* @return A <code>HardwareBuffer</code> instance if successful, or throws an
		* IllegalArgumentException if the dimensions passed are invalid (either zero, negative, or
		* too large to allocate), if the format is not supported, if the requested number of layers
		@@ -154,7 +173,7 @@ public final class HardwareBuffer implements Parcelable, AutoCloseable {
		if (nativeObject == 0) {
		throw new IllegalArgumentException("Unable to create a HardwareBuffer, either the " +
		"dimensions passed were too large, too many image layers were requested, " +
		"or an invalid set of usage flags was passed");
		"or an invalid set of usage flags or invalid format was passed");
		}
		return new HardwareBuffer(nativeObject);
		}
		@@ -206,8 +225,7 @@ public final class HardwareBuffer implements Parcelable, AutoCloseable {
		}

		/**
		* Returns the format of this buffer, one of {@link #RGBA_8888}, {@link #RGBA_FP16},
		* {@link #RGBX_8888}, {@link #RGB_565}, {@link #RGB_888}, {@link #RGBA_1010102}, {@link #BLOB}.
		* Returns the @Format of this buffer.
		*/
		@Format
		public int getFormat() {
		@@ -338,6 +356,12 @@ public final class HardwareBuffer implements Parcelable, AutoCloseable {
		case RGB_565:
		case RGB_888:
		case BLOB:
		case D_16:
		case D_24:
		case DS_24UI8:
		case D_FP32:
		case DS_FP32UI8:
		case S_UI8:
		return true;
		}
		return false;