Optimize Blend composites. (9ce07461) · Commits · e / os / android_frameworks_base

tools/layoutlib/bridge/src/android/graphics/BlendComposite.java

+136 −147

Original line number	Diff line number	Diff line
		@@ -197,12 +197,14 @@ public final class BlendComposite implements Composite {

		int[] srcPixel = new int[4];
		int[] dstPixel = new int[4];
		int[] result = new int[4];
		int[] srcPixels = new int[width];
		int[] dstPixels = new int[width];

		for (int y = 0; y < height; y++) {
		src.getDataElements(0, y, width, 1, srcPixels);
		dstIn.getDataElements(0, y, width, 1, dstPixels);
		if (alpha != 0) {
		src.getDataElements(0, y, width, 1, srcPixels);
		for (int x = 0; x < width; x++) {
		// pixels are stored as INT_ARGB
		// our arrays are [R, G, B, A]
		@@ -218,21 +220,31 @@ public final class BlendComposite implements Composite {
		dstPixel[2] = (pixel ) & 0xFF;
		dstPixel[3] = (pixel >> 24) & 0xFF;

		int[] result = blender.blend(srcPixel, dstPixel);
		result = blender.blend(srcPixel, dstPixel, result);

		// mixes the result with the opacity
		dstPixels[x] = ((int) (dstPixel[3] + (result[3] - dstPixel[3]) * alpha) & 0xFF) << 24 \|
		if (alpha == 1) {
		dstPixels[x] = (result[3] & 0xFF) << 24 \|
		(result[0] & 0xFF) << 16 \|
		(result[1] & 0xFF) << 8 \|
		result[2] & 0xFF;
		} else {
		dstPixels[x] =
		((int) (dstPixel[3] + (result[3] - dstPixel[3]) * alpha) & 0xFF) << 24 \|
		((int) (dstPixel[0] + (result[0] - dstPixel[0]) * alpha) & 0xFF) << 16 \|
		((int) (dstPixel[1] + (result[1] - dstPixel[1]) * alpha) & 0xFF) << 8 \|
		(int) (dstPixel[2] + (result[2] - dstPixel[2]) * alpha) & 0xFF;
		}

		}
		}
		dstOut.setDataElements(0, y, width, 1, dstPixels);
		}
		}
		}

		private static abstract class Blender {
		public abstract int[] blend(int[] src, int[] dst);
		public abstract int[] blend(int[] src, int[] dst, int[] result);

		private static void RGBtoHSL(int r, int g, int b, float[] hsl) {
		float var_R = (r / 255f);
		@@ -346,56 +358,50 @@ public final class BlendComposite implements Composite {
		case NORMAL:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		return src;
		public int[] blend(int[] src, int[] dst, int[] result) {
		System.arraycopy(src, 0, result, 0, 4);
		return result;
		}
		};
		case ADD:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		return new int[] {
		Math.min(255, src[0] + dst[0]),
		Math.min(255, src[1] + dst[1]),
		Math.min(255, src[2] + dst[2]),
		Math.min(255, src[3] + dst[3])
		};
		public int[] blend(int[] src, int[] dst, int[] result) {
		for (int i = 0; i < 4; i++) {
		result[i] = Math.min(255, src[i] + dst[i]);
		}
		return result;
		}
		};
		case AVERAGE:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		return new int[] {
		(src[0] + dst[0]) >> 1,
		(src[1] + dst[1]) >> 1,
		(src[2] + dst[2]) >> 1,
		Math.min(255, src[3] + dst[3])
		};
		public int[] blend(int[] src, int[] dst, int[] result) {
		for (int i = 0; i < 3; i++) {
		result[i] = (src[i] + dst[i]) >> 1;
		}
		result[3] = Math.min(255, src[3] + dst[3]);
		return result;
		}
		};
		case BLUE:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		return new int[] {
		dst[0],
		src[1],
		dst[2],
		Math.min(255, src[3] + dst[3])
		};
		public int[] blend(int[] src, int[] dst, int[] result) {
		System.arraycopy(dst, 0, result, 0, 3);
		result[3] = Math.min(255, src[3] + dst[3]);
		return result;
		}
		};
		case COLOR:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		public int[] blend(int[] src, int[] dst, int[] result) {
		float[] srcHSL = new float[3];
		RGBtoHSL(src[0], src[1], src[2], srcHSL);
		float[] dstHSL = new float[3];
		RGBtoHSL(dst[0], dst[1], dst[2], dstHSL);

		int[] result = new int[4];
		HSLtoRGB(srcHSL[0], srcHSL[1], dstHSL[2], result);
		result[3] = Math.min(255, src[3] + dst[3]);

		@@ -405,97 +411,88 @@ public final class BlendComposite implements Composite {
		case COLOR_BURN:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		return new int[] {
		src[0] == 0 ? 0 :
		Math.max(0, 255 - (((255 - dst[0]) << 8) / src[0])),
		src[1] == 0 ? 0 :
		Math.max(0, 255 - (((255 - dst[1]) << 8) / src[1])),
		src[2] == 0 ? 0 :
		Math.max(0, 255 - (((255 - dst[2]) << 8) / src[2])),
		Math.min(255, src[3] + dst[3])
		};
		public int[] blend(int[] src, int[] dst, int[] result) {
		for (int i = 0; i < 3; i++) {
		result[i] = src[i] == 0 ? 0 :
		Math.max(0, 255 - (((255 - dst[i]) << 8) / src[i]));
		}
		result[3] = Math.min(255, src[3] + dst[3]);
		return result;
		}
		};
		case COLOR_DODGE:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		return new int[] {
		src[0] == 255 ? 255 :
		Math.min((dst[0] << 8) / (255 - src[0]), 255),
		src[1] == 255 ? 255 :
		Math.min((dst[1] << 8) / (255 - src[1]), 255),
		src[2] == 255 ? 255 :
		Math.min((dst[2] << 8) / (255 - src[2]), 255),
		Math.min(255, src[3] + dst[3])
		};
		public int[] blend(int[] src, int[] dst, int[] result) {
		for (int i = 0; i < 3; i++) {
		result[i] = src[i] == 255 ? 255 :
		Math.min((dst[i] << 8) / (255 - src[i]), 255);
		}
		result[3] = Math.min(255, src[3] + dst[3]);
		return result;
		}
		};
		case DARKEN:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		return new int[] {
		Math.min(src[0], dst[0]),
		Math.min(src[1], dst[1]),
		Math.min(src[2], dst[2]),
		Math.min(255, src[3] + dst[3])
		};
		public int[] blend(int[] src, int[] dst, int[] result) {
		for (int i = 0; i < 3; i++) {
		result[i] = Math.min(src[i], dst[i]);
		}
		result[3] = Math.min(255, src[3] + dst[3]);
		return result;
		}
		};
		case DIFFERENCE:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		return new int[] {
		Math.abs(dst[0] - src[0]),
		Math.abs(dst[1] - src[1]),
		Math.abs(dst[2] - src[2]),
		Math.min(255, src[3] + dst[3])
		};
		public int[] blend(int[] src, int[] dst, int[] result) {
		for (int i = 0; i < 3; i++) {
		result[i] = dst[i] + src[i] - (dst[i] * src[i] >> 7);
		}
		result[3] = Math.min(255, src[3] + dst[3]);
		return result;
		}
		};
		case EXCLUSION:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		return new int[] {
		dst[0] + src[0] - (dst[0] * src[0] >> 7),
		dst[1] + src[1] - (dst[1] * src[1] >> 7),
		dst[2] + src[2] - (dst[2] * src[2] >> 7),
		Math.min(255, src[3] + dst[3])
		};
		public int[] blend(int[] src, int[] dst, int[] result) {
		for (int i = 0; i < 3; i++) {
		result[i] = dst[i] + src[i] - (dst[i] * src[i] >> 7);
		}
		result[3] = Math.min(255, src[3] + dst[3]);
		return result;
		}
		};
		case FREEZE:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		return new int[] {
		src[0] == 0 ? 0 : Math.max(0, 255 - (255 - dst[0]) * (255 - dst[0]) / src[0]),
		src[1] == 0 ? 0 : Math.max(0, 255 - (255 - dst[1]) * (255 - dst[1]) / src[1]),
		src[2] == 0 ? 0 : Math.max(0, 255 - (255 - dst[2]) * (255 - dst[2]) / src[2]),
		Math.min(255, src[3] + dst[3])
		};
		public int[] blend(int[] src, int[] dst, int[] result) {
		for (int i = 0; i < 3; i++) {
		result[i] = src[i] == 0 ? 0 :
		Math.max(0, 255 - (255 - dst[i]) * (255 - dst[i]) / src[i]);
		}
		result[3] = Math.min(255, src[3] + dst[3]);
		return result;
		}
		};
		case GLOW:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		return new int[] {
		dst[0] == 255 ? 255 : Math.min(255, src[0] * src[0] / (255 - dst[0])),
		dst[1] == 255 ? 255 : Math.min(255, src[1] * src[1] / (255 - dst[1])),
		dst[2] == 255 ? 255 : Math.min(255, src[2] * src[2] / (255 - dst[2])),
		Math.min(255, src[3] + dst[3])
		};
		public int[] blend(int[] src, int[] dst, int[] result) {
		for (int i = 0; i < 3; i++) {
		result[i] = dst[i] == 255 ? 255 :
		Math.min(255, src[i] * src[i] / (255 - dst[i]));
		}
		result[3] = Math.min(255, src[3] + dst[3]);
		return result;
		}
		};
		case GREEN:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		public int[] blend(int[] src, int[] dst, int[] result) {
		return new int[] {
		dst[0],
		dst[1],
		@@ -507,7 +504,7 @@ public final class BlendComposite implements Composite {
		case HARD_LIGHT:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		public int[] blend(int[] src, int[] dst, int[] result) {
		return new int[] {
		src[0] < 128 ? dst[0] * src[0] >> 7 :
		255 - ((255 - src[0]) * (255 - dst[0]) >> 7),
		@@ -522,7 +519,7 @@ public final class BlendComposite implements Composite {
		case HEAT:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		public int[] blend(int[] src, int[] dst, int[] result) {
		return new int[] {
		dst[0] == 0 ? 0 : Math.max(0, 255 - (255 - src[0]) * (255 - src[0]) / dst[0]),
		dst[1] == 0 ? 0 : Math.max(0, 255 - (255 - src[1]) * (255 - src[1]) / dst[1]),
		@@ -534,13 +531,12 @@ public final class BlendComposite implements Composite {
		case HUE:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		public int[] blend(int[] src, int[] dst, int[] result) {
		float[] srcHSL = new float[3];
		RGBtoHSL(src[0], src[1], src[2], srcHSL);
		float[] dstHSL = new float[3];
		RGBtoHSL(dst[0], dst[1], dst[2], dstHSL);

		int[] result = new int[4];
		HSLtoRGB(srcHSL[0], dstHSL[1], dstHSL[2], result);
		result[3] = Math.min(255, src[3] + dst[3]);

		@@ -550,7 +546,7 @@ public final class BlendComposite implements Composite {
		case INVERSE_COLOR_BURN:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		public int[] blend(int[] src, int[] dst, int[] result) {
		return new int[] {
		dst[0] == 0 ? 0 :
		Math.max(0, 255 - (((255 - src[0]) << 8) / dst[0])),
		@@ -565,7 +561,7 @@ public final class BlendComposite implements Composite {
		case INVERSE_COLOR_DODGE:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		public int[] blend(int[] src, int[] dst, int[] result) {
		return new int[] {
		dst[0] == 255 ? 255 :
		Math.min((src[0] << 8) / (255 - dst[0]), 255),
		@@ -580,25 +576,23 @@ public final class BlendComposite implements Composite {
		case LIGHTEN:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		return new int[] {
		Math.max(src[0], dst[0]),
		Math.max(src[1], dst[1]),
		Math.max(src[2], dst[2]),
		Math.min(255, src[3] + dst[3])
		};
		public int[] blend(int[] src, int[] dst, int[] result) {
		for (int i = 0; i < 3; i++) {
		result[i] = Math.max(src[i], dst[i]);
		}
		result[3] = Math.min(255, src[3] + dst[3]);
		return result;
		}
		};
		case LUMINOSITY:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		public int[] blend(int[] src, int[] dst, int[] result) {
		float[] srcHSL = new float[3];
		RGBtoHSL(src[0], src[1], src[2], srcHSL);
		float[] dstHSL = new float[3];
		RGBtoHSL(dst[0], dst[1], dst[2], dstHSL);

		int[] result = new int[4];
		HSLtoRGB(dstHSL[0], dstHSL[1], srcHSL[2], result);
		result[3] = Math.min(255, src[3] + dst[3]);

		@@ -608,19 +602,18 @@ public final class BlendComposite implements Composite {
		case MULTIPLY:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		return new int[] {
		(src[0] * dst[0]) >> 8,
		(src[1] * dst[1]) >> 8,
		(src[2] * dst[2]) >> 8,
		Math.min(255, src[3] + dst[3])
		};
		public int[] blend(int[] src, int[] dst, int[] result) {
		for (int i = 0; i < 3; i++) {
		result[i] = (src[i] * dst[i]) >> 8;
		}
		result[3] = Math.min(255, src[3] + dst[3]);
		return result;
		}
		};
		case NEGATION:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		public int[] blend(int[] src, int[] dst, int[] result) {
		return new int[] {
		255 - Math.abs(255 - dst[0] - src[0]),
		255 - Math.abs(255 - dst[1] - src[1]),
		@@ -632,22 +625,19 @@ public final class BlendComposite implements Composite {
		case OVERLAY:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		return new int[] {
		dst[0] < 128 ? dst[0] * src[0] >> 7 :
		255 - ((255 - dst[0]) * (255 - src[0]) >> 7),
		dst[1] < 128 ? dst[1] * src[1] >> 7 :
		255 - ((255 - dst[1]) * (255 - src[1]) >> 7),
		dst[2] < 128 ? dst[2] * src[2] >> 7 :
		255 - ((255 - dst[2]) * (255 - src[2]) >> 7),
		Math.min(255, src[3] + dst[3])
		};
		public int[] blend(int[] src, int[] dst, int[] result) {
		for (int i = 0; i < 3; i++) {
		result[i] = dst[i] < 128 ? dst[i] * src[i] >> 7 :
		255 - ((255 - dst[i]) * (255 - src[i]) >> 7);
		}
		result[3] = Math.min(255, src[3] + dst[3]);
		return result;
		}
		};
		case RED:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		public int[] blend(int[] src, int[] dst, int[] result) {
		return new int[] {
		src[0],
		dst[1],
		@@ -659,7 +649,7 @@ public final class BlendComposite implements Composite {
		case REFLECT:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		public int[] blend(int[] src, int[] dst, int[] result) {
		return new int[] {
		src[0] == 255 ? 255 : Math.min(255, dst[0] * dst[0] / (255 - src[0])),
		src[1] == 255 ? 255 : Math.min(255, dst[1] * dst[1] / (255 - src[1])),
		@@ -671,13 +661,12 @@ public final class BlendComposite implements Composite {
		case SATURATION:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		public int[] blend(int[] src, int[] dst, int[] result) {
		float[] srcHSL = new float[3];
		RGBtoHSL(src[0], src[1], src[2], srcHSL);
		float[] dstHSL = new float[3];
		RGBtoHSL(dst[0], dst[1], dst[2], dstHSL);

		int[] result = new int[4];
		HSLtoRGB(dstHSL[0], srcHSL[1], dstHSL[2], result);
		result[3] = Math.min(255, src[3] + dst[3]);

		@@ -687,7 +676,7 @@ public final class BlendComposite implements Composite {
		case SCREEN:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		public int[] blend(int[] src, int[] dst, int[] result) {
		return new int[] {
		255 - ((255 - src[0]) * (255 - dst[0]) >> 8),
		255 - ((255 - src[1]) * (255 - dst[1]) >> 8),
		@@ -699,7 +688,7 @@ public final class BlendComposite implements Composite {
		case SOFT_BURN:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		public int[] blend(int[] src, int[] dst, int[] result) {
		return new int[] {
		dst[0] + src[0] < 256 ?
		(dst[0] == 255 ? 255 :
		@@ -720,7 +709,7 @@ public final class BlendComposite implements Composite {
		case SOFT_DODGE:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		public int[] blend(int[] src, int[] dst, int[] result) {
		return new int[] {
		dst[0] + src[0] < 256 ?
		(src[0] == 255 ? 255 :
		@@ -743,7 +732,7 @@ public final class BlendComposite implements Composite {
		case STAMP:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		public int[] blend(int[] src, int[] dst, int[] result) {
		return new int[] {
		Math.max(0, Math.min(255, dst[0] + 2 * src[0] - 256)),
		Math.max(0, Math.min(255, dst[1] + 2 * src[1] - 256)),
		@@ -755,7 +744,7 @@ public final class BlendComposite implements Composite {
		case SUBTRACT:
		return new Blender() {
		@Override
		public int[] blend(int[] src, int[] dst) {
		public int[] blend(int[] src, int[] dst, int[] result) {
		return new int[] {
		Math.max(0, src[0] + dst[0] - 256),
		Math.max(0, src[1] + dst[1] - 256),