diff options
| -rw-r--r-- | core/api/current.txt | 2 | ||||
| -rw-r--r-- | graphics/java/android/graphics/ColorSpace.java | 56 |
2 files changed, 58 insertions, 0 deletions
diff --git a/core/api/current.txt b/core/api/current.txt index 5b1f59a9e88f..62a0aff9caa3 100644 --- a/core/api/current.txt +++ b/core/api/current.txt @@ -14391,6 +14391,8 @@ package android.graphics { method @NonNull @Size(min=3) public abstract float[] fromXyz(@NonNull @Size(min=3) float[]); method @NonNull public static android.graphics.ColorSpace get(@NonNull android.graphics.ColorSpace.Named); method @IntRange(from=1, to=4) public int getComponentCount(); + method public int getDataSpace(); + method @Nullable public static android.graphics.ColorSpace getFromDataSpace(int); method @IntRange(from=android.graphics.ColorSpace.MIN_ID, to=android.graphics.ColorSpace.MAX_ID) public int getId(); method public abstract float getMaxValue(@IntRange(from=0, to=3) int); method public abstract float getMinValue(@IntRange(from=0, to=3) int); diff --git a/graphics/java/android/graphics/ColorSpace.java b/graphics/java/android/graphics/ColorSpace.java index 2f978fc1fc2d..582488ff8de3 100644 --- a/graphics/java/android/graphics/ColorSpace.java +++ b/graphics/java/android/graphics/ColorSpace.java @@ -22,6 +22,10 @@ import android.annotation.NonNull; import android.annotation.Nullable; import android.annotation.Size; import android.annotation.SuppressAutoDoc; +import android.annotation.SuppressLint; +import android.hardware.DataSpace; +import android.hardware.DataSpace.NamedDataSpace; +import android.util.SparseIntArray; import libcore.util.NativeAllocationRegistry; @@ -207,6 +211,7 @@ public abstract class ColorSpace { // See static initialization block next to #get(Named) private static final ColorSpace[] sNamedColorSpaces = new ColorSpace[Named.values().length]; + private static final SparseIntArray sDataToColorSpaces = new SparseIntArray(); @NonNull private final String mName; @NonNull private final Model mModel; @@ -1389,6 +1394,47 @@ public abstract class ColorSpace { } /** + * Create a {@link ColorSpace} object using a {@link android.hardware.DataSpace DataSpace} + * value. + * + * <p>This function maps from a dataspace to a {@link Named} ColorSpace. + * If no {@link Named} ColorSpace object matching the {@code dataSpace} value can be created, + * {@code null} will return.</p> + * + * @param dataSpace The dataspace value + * @return the ColorSpace object or {@code null} if no matching colorspace can be found. + */ + @SuppressLint("MethodNameUnits") + @Nullable + public static ColorSpace getFromDataSpace(@NamedDataSpace int dataSpace) { + int index = sDataToColorSpaces.get(dataSpace, -1); + if (index != -1) { + return ColorSpace.get(index); + } else { + return null; + } + } + + /** + * Retrieve the {@link android.hardware.DataSpace DataSpace} value from a {@link ColorSpace} + * object. + * + * <p>If this {@link ColorSpace} object has no matching {@code dataSpace} value, + * {@link android.hardware.DataSpace#DATASPACE_UNKNOWN DATASPACE_UNKNOWN} will return.</p> + * + * @return the dataspace value. + */ + @SuppressLint("MethodNameUnits") + public @NamedDataSpace int getDataSpace() { + int index = sDataToColorSpaces.indexOfValue(getId()); + if (index != -1) { + return sDataToColorSpaces.keyAt(index); + } else { + return DataSpace.DATASPACE_UNKNOWN; + } + } + + /** * <p>Returns an instance of {@link ColorSpace} identified by the specified * name. The list of names provided in the {@link Named} enum gives access * to a variety of common RGB color spaces.</p> @@ -1445,6 +1491,7 @@ public abstract class ColorSpace { SRGB_TRANSFER_PARAMETERS, Named.SRGB.ordinal() ); + sDataToColorSpaces.put(DataSpace.DATASPACE_SRGB, Named.SRGB.ordinal()); sNamedColorSpaces[Named.LINEAR_SRGB.ordinal()] = new ColorSpace.Rgb( "sRGB IEC61966-2.1 (Linear)", SRGB_PRIMARIES, @@ -1453,6 +1500,7 @@ public abstract class ColorSpace { 0.0f, 1.0f, Named.LINEAR_SRGB.ordinal() ); + sDataToColorSpaces.put(DataSpace.DATASPACE_SRGB_LINEAR, Named.LINEAR_SRGB.ordinal()); sNamedColorSpaces[Named.EXTENDED_SRGB.ordinal()] = new ColorSpace.Rgb( "scRGB-nl IEC 61966-2-2:2003", SRGB_PRIMARIES, @@ -1464,6 +1512,7 @@ public abstract class ColorSpace { SRGB_TRANSFER_PARAMETERS, Named.EXTENDED_SRGB.ordinal() ); + sDataToColorSpaces.put(DataSpace.DATASPACE_SCRGB, Named.EXTENDED_SRGB.ordinal()); sNamedColorSpaces[Named.LINEAR_EXTENDED_SRGB.ordinal()] = new ColorSpace.Rgb( "scRGB IEC 61966-2-2:2003", SRGB_PRIMARIES, @@ -1472,6 +1521,8 @@ public abstract class ColorSpace { -0.5f, 7.499f, Named.LINEAR_EXTENDED_SRGB.ordinal() ); + sDataToColorSpaces.put( + DataSpace.DATASPACE_SCRGB_LINEAR, Named.LINEAR_EXTENDED_SRGB.ordinal()); sNamedColorSpaces[Named.BT709.ordinal()] = new ColorSpace.Rgb( "Rec. ITU-R BT.709-5", new float[] { 0.640f, 0.330f, 0.300f, 0.600f, 0.150f, 0.060f }, @@ -1480,6 +1531,7 @@ public abstract class ColorSpace { new Rgb.TransferParameters(1 / 1.099, 0.099 / 1.099, 1 / 4.5, 0.081, 1 / 0.45), Named.BT709.ordinal() ); + sDataToColorSpaces.put(DataSpace.DATASPACE_BT709, Named.BT709.ordinal()); sNamedColorSpaces[Named.BT2020.ordinal()] = new ColorSpace.Rgb( "Rec. ITU-R BT.2020-1", new float[] { 0.708f, 0.292f, 0.170f, 0.797f, 0.131f, 0.046f }, @@ -1488,6 +1540,7 @@ public abstract class ColorSpace { new Rgb.TransferParameters(1 / 1.0993, 0.0993 / 1.0993, 1 / 4.5, 0.08145, 1 / 0.45), Named.BT2020.ordinal() ); + sDataToColorSpaces.put(DataSpace.DATASPACE_BT2020, Named.BT2020.ordinal()); sNamedColorSpaces[Named.DCI_P3.ordinal()] = new ColorSpace.Rgb( "SMPTE RP 431-2-2007 DCI (P3)", new float[] { 0.680f, 0.320f, 0.265f, 0.690f, 0.150f, 0.060f }, @@ -1496,6 +1549,7 @@ public abstract class ColorSpace { 0.0f, 1.0f, Named.DCI_P3.ordinal() ); + sDataToColorSpaces.put(DataSpace.DATASPACE_DCI_P3, Named.DCI_P3.ordinal()); sNamedColorSpaces[Named.DISPLAY_P3.ordinal()] = new ColorSpace.Rgb( "Display P3", new float[] { 0.680f, 0.320f, 0.265f, 0.690f, 0.150f, 0.060f }, @@ -1504,6 +1558,7 @@ public abstract class ColorSpace { SRGB_TRANSFER_PARAMETERS, Named.DISPLAY_P3.ordinal() ); + sDataToColorSpaces.put(DataSpace.DATASPACE_DISPLAY_P3, Named.DISPLAY_P3.ordinal()); sNamedColorSpaces[Named.NTSC_1953.ordinal()] = new ColorSpace.Rgb( "NTSC (1953)", NTSC_1953_PRIMARIES, @@ -1528,6 +1583,7 @@ public abstract class ColorSpace { 0.0f, 1.0f, Named.ADOBE_RGB.ordinal() ); + sDataToColorSpaces.put(DataSpace.DATASPACE_ADOBE_RGB, Named.ADOBE_RGB.ordinal()); sNamedColorSpaces[Named.PRO_PHOTO_RGB.ordinal()] = new ColorSpace.Rgb( "ROMM RGB ISO 22028-2:2013", new float[] { 0.7347f, 0.2653f, 0.1596f, 0.8404f, 0.0366f, 0.0001f }, |