Add IntrinsicResize test to CTS.Renderscript.
- Currently only accept Uchar (float not supported)
- When scale factor is 1, test if the result is identical to the source img.
Change-Id: I94b2483e459308a6f01e715c24a23fc5e59597d1
diff --git a/tests/tests/renderscript/src/android/renderscript/cts/IntrinsicResize.java b/tests/tests/renderscript/src/android/renderscript/cts/IntrinsicResize.java
new file mode 100644
index 0000000..d593bff
--- /dev/null
+++ b/tests/tests/renderscript/src/android/renderscript/cts/IntrinsicResize.java
@@ -0,0 +1,251 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.renderscript.cts;
+
+import android.renderscript.*;
+import android.util.Log;
+
+public class IntrinsicResize extends IntrinsicBase {
+
+ static final int inX = 307;
+ static final int inY = 157;
+
+ private void testReszie(int w, int h, Element.DataType dt, int vecSize, float scaleX, float scaleY) {
+
+ Element e = makeElement(dt, vecSize);
+
+ System.gc();
+ makeSource(w, h, e);
+
+ int outW = (int) (w*scaleX);
+ int outH = (int) (h*scaleY);
+ if (mAllocRef != null) {
+ mAllocRef.destroy();
+ }
+ if (mAllocDst != null) {
+ mAllocDst.destroy();
+ }
+ mAllocRef = makeAllocation(outW, outH, e);
+ mAllocDst = makeAllocation(outW, outH, e);
+
+ ScriptIntrinsicResize si = ScriptIntrinsicResize.create(mRS);
+ si.setInput(mAllocSrc);
+ si.forEach_bicubic(mAllocRef);
+
+ ScriptC_intrinsic_resize sr = new ScriptC_intrinsic_resize(mRS);
+ sr.set_scaleX((float)w/outW);
+ sr.set_scaleY((float)h/outH);
+ sr.set_gIn(mAllocSrc);
+ sr.set_gWidthIn(w);
+ sr.set_gHeightIn(h);
+ if (dt == Element.DataType.UNSIGNED_8) {
+ switch(vecSize) {
+ case 4:
+ sr.forEach_bicubic_U4(mAllocDst);
+ break;
+ case 3:
+ sr.forEach_bicubic_U3(mAllocDst);
+ break;
+ case 2:
+ sr.forEach_bicubic_U2(mAllocDst);
+ break;
+ case 1:
+ sr.forEach_bicubic_U1(mAllocDst);
+ break;
+ }
+ }
+
+ mVerify.invoke_verify(mAllocRef, mAllocDst, mAllocSrc);
+ if (outW == w && outH == h) {
+ //when scale = 1, check with the original.
+ mVerify.invoke_verify(mAllocRef, mAllocSrc, mAllocSrc);
+ mVerify.invoke_verify(mAllocDst, mAllocSrc, mAllocSrc);
+ }
+ mRS.finish();
+ }
+
+
+ public void test_U8_4_SCALE10_10_inSqure() {
+ testReszie(inX, inX, Element.DataType.UNSIGNED_8, 4, 1.f, 1.f);
+ checkError();
+ }
+ public void test_U8_3_SCALE10_10_inSqure() {
+ testReszie(inX, inX, Element.DataType.UNSIGNED_8, 3, 1.f, 1.f);
+ checkError();
+ }
+ public void test_U8_2_SCALE10_10_inSqure() {
+ testReszie(inX, inX, Element.DataType.UNSIGNED_8, 2, 1.f, 1.f);
+ checkError();
+ }
+ public void test_U8_1_SCALE10_10_inSqure() {
+ testReszie(inX, inX, Element.DataType.UNSIGNED_8, 1, 1.f, 1.f);
+ checkError();
+ }
+
+ public void test_U8_4_SCALE20_20_inSqure() {
+ testReszie(inX, inX, Element.DataType.UNSIGNED_8, 4, 2.f, 2.f);
+ checkError();
+ }
+ public void test_U8_3_SCALE20_20_inSqure() {
+ testReszie(inX, inX, Element.DataType.UNSIGNED_8, 3, 2.f, 2.f);
+ checkError();
+ }
+ public void test_U8_2_SCALE20_20_inSqure() {
+ testReszie(inX, inX, Element.DataType.UNSIGNED_8, 2, 2.f, 2.f);
+ checkError();
+ }
+ public void test_U8_1_SCALE20_20_inSqure() {
+ testReszie(inX, inX, Element.DataType.UNSIGNED_8, 1, 2.f, 2.f);
+ checkError();
+ }
+
+ public void test_U8_4_SCALE05_20_inSqure() {
+ testReszie(inX, inX, Element.DataType.UNSIGNED_8, 4, 0.5f, 2.f);
+ checkError();
+ }
+ public void test_U8_3_SCALE05_20_inSqure() {
+ testReszie(inX, inX, Element.DataType.UNSIGNED_8, 3, 0.5f, 2.f);
+ checkError();
+ }
+ public void test_U8_2_SCALE05_20_inSqure() {
+ testReszie(inX, inX, Element.DataType.UNSIGNED_8, 2, 0.5f, 2.f);
+ checkError();
+ }
+ public void test_U8_1_SCALE05_20_inSqure() {
+ testReszie(inX, inX, Element.DataType.UNSIGNED_8, 1, 0.5f, 2.f);
+ checkError();
+ }
+
+ public void test_U8_4_SCALE20_05_inSqure() {
+ testReszie(inX, inX, Element.DataType.UNSIGNED_8, 4, 2.f, 0.5f);
+ checkError();
+ }
+ public void test_U8_3_SCALE20_05_inSqure() {
+ testReszie(inX, inX, Element.DataType.UNSIGNED_8, 3, 2.f, 0.5f);
+ checkError();
+ }
+ public void test_U8_2_SCALE20_05_inSqure() {
+ testReszie(inX, inX, Element.DataType.UNSIGNED_8, 2, 2.f, 0.5f);
+ checkError();
+ }
+ public void test_U8_1_SCALE20_05_inSqure() {
+ testReszie(inX, inX, Element.DataType.UNSIGNED_8, 1, 2.f, 0.5f);
+ checkError();
+ }
+
+ public void test_U8_4_SCALE05_05_inSqure() {
+ testReszie(inX, inX, Element.DataType.UNSIGNED_8, 4, 0.5f, 0.5f);
+ checkError();
+ }
+ public void test_U8_3_SCALE05_05_inSqure() {
+ testReszie(inX, inX, Element.DataType.UNSIGNED_8, 3, 0.5f, 0.5f);
+ checkError();
+ }
+ public void test_U8_2_SCALE05_05_inSqure() {
+ testReszie(inX, inX, Element.DataType.UNSIGNED_8, 2, 0.5f, 0.5f);
+ checkError();
+ }
+ public void test_U8_1_SCALE05_05_inSqure() {
+ testReszie(inX, inX, Element.DataType.UNSIGNED_8, 1, 0.5f, 0.5f);
+ checkError();
+ }
+
+ public void test_U8_4_SCALE10_10_inRectangle() {
+ testReszie(inX, inY, Element.DataType.UNSIGNED_8, 4, 1.f, 1.f);
+ checkError();
+ }
+ public void test_U8_3_SCALE10_10_inRectangle() {
+ testReszie(inX, inY, Element.DataType.UNSIGNED_8, 3, 1.f, 1.f);
+ checkError();
+ }
+ public void test_U8_2_SCALE10_10_inRectangle() {
+ testReszie(inX, inY, Element.DataType.UNSIGNED_8, 2, 1.f, 1.f);
+ checkError();
+ }
+ public void test_U8_1_SCALE10_10_inRectangle() {
+ testReszie(inX, inY, Element.DataType.UNSIGNED_8, 1, 1.f, 1.f);
+ checkError();
+ }
+
+ public void test_U8_4_SCALE20_20_inRectangle() {
+ testReszie(inX, inY, Element.DataType.UNSIGNED_8, 4, 2.f, 2.f);
+ checkError();
+ }
+ public void test_U8_3_SCALE20_20_inRectangle() {
+ testReszie(inX, inY, Element.DataType.UNSIGNED_8, 3, 2.f, 2.f);
+ checkError();
+ }
+ public void test_U8_2_SCALE20_20_inRectangle() {
+ testReszie(inX, inY, Element.DataType.UNSIGNED_8, 2, 2.f, 2.f);
+ checkError();
+ }
+ public void test_U8_1_SCALE20_20_inRectangle() {
+ testReszie(inX, inY, Element.DataType.UNSIGNED_8, 1, 2.f, 2.f);
+ checkError();
+ }
+
+ public void test_U8_4_SCALE05_20_inRectangle() {
+ testReszie(inX, inY, Element.DataType.UNSIGNED_8, 4, 0.5f, 2.f);
+ checkError();
+ }
+ public void test_U8_3_SCALE05_20_inRectangle() {
+ testReszie(inX, inY, Element.DataType.UNSIGNED_8, 3, 0.5f, 2.f);
+ checkError();
+ }
+ public void test_U8_2_SCALE05_20_inRectangle() {
+ testReszie(inX, inY, Element.DataType.UNSIGNED_8, 2, 0.5f, 2.f);
+ checkError();
+ }
+ public void test_U8_1_SCALE05_20_inRectangle() {
+ testReszie(inX, inY, Element.DataType.UNSIGNED_8, 1, 0.5f, 2.f);
+ checkError();
+ }
+
+ public void test_U8_4_SCALE20_05_inRectangle() {
+ testReszie(inX, inY, Element.DataType.UNSIGNED_8, 4, 2.f, 0.5f);
+ checkError();
+ }
+ public void test_U8_3_SCALE20_05_inRectangle() {
+ testReszie(inX, inY, Element.DataType.UNSIGNED_8, 3, 2.f, 0.5f);
+ checkError();
+ }
+ public void test_U8_2_SCALE20_05_inRectangle() {
+ testReszie(inX, inY, Element.DataType.UNSIGNED_8, 2, 2.f, 0.5f);
+ checkError();
+ }
+ public void test_U8_1_SCALE20_05_inRectangle() {
+ testReszie(inX, inY, Element.DataType.UNSIGNED_8, 1, 2.f, 0.5f);
+ checkError();
+ }
+
+ public void test_U8_4_SCALE05_05_inRectangle() {
+ testReszie(inX, inY, Element.DataType.UNSIGNED_8, 4, 0.5f, 0.5f);
+ checkError();
+ }
+ public void test_U8_3_SCALE05_05_inRectangle() {
+ testReszie(inX, inY, Element.DataType.UNSIGNED_8, 3, 0.5f, 0.5f);
+ checkError();
+ }
+ public void test_U8_2_SCALE05_05_inRectangle() {
+ testReszie(inX, inY, Element.DataType.UNSIGNED_8, 2, 0.5f, 0.5f);
+ checkError();
+ }
+ public void test_U8_1_SCALE05_05_inRectangle() {
+ testReszie(inX, inY, Element.DataType.UNSIGNED_8, 1, 0.5f, 0.5f);
+ checkError();
+ }
+}
diff --git a/tests/tests/renderscript/src/android/renderscript/cts/intrinsic_resize.rs b/tests/tests/renderscript/src/android/renderscript/cts/intrinsic_resize.rs
new file mode 100644
index 0000000..fa8c8dd
--- /dev/null
+++ b/tests/tests/renderscript/src/android/renderscript/cts/intrinsic_resize.rs
@@ -0,0 +1,244 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "shared.rsh"
+
+int32_t gWidthIn;
+int32_t gHeightIn;
+rs_allocation gIn;
+float scaleX;
+float scaleY;
+
+static float4 cubicInterpolate_F4 (float4 p0,float4 p1,float4 p2,float4 p3 , float x) {
+ return p1 + 0.5f * x * (p2 - p0 + x * (2.f * p0 - 5.f * p1 + 4.f * p2 - p3
+ + x * (3.f * (p1 - p2) + p3 - p0)));
+}
+
+static float3 cubicInterpolate_F3 (float3 p0,float3 p1,float3 p2,float3 p3 , float x) {
+ return p1 + 0.5f * x * (p2 - p0 + x * (2.f * p0 - 5.f * p1 + 4.f * p2 - p3
+ + x * (3.f * (p1 - p2) + p3 - p0)));
+}
+
+static float2 cubicInterpolate_F2 (float2 p0,float2 p1,float2 p2,float2 p3 , float x) {
+ return p1 + 0.5f * x * (p2 - p0 + x * (2.f * p0 - 5.f * p1 + 4.f * p2 - p3
+ + x * (3.f * (p1 - p2) + p3 - p0)));
+}
+
+static float cubicInterpolate_F1 (float p0,float p1,float p2,float p3 , float x) {
+ return p1 + 0.5f * x * (p2 - p0 + x * (2.f * p0 - 5.f * p1 + 4.f * p2 - p3
+ + x * (3.f * (p1 - p2) + p3 - p0)));
+}
+
+uchar4 __attribute__((kernel)) bicubic_U4(uint32_t x, uint32_t y) {
+ float xf = (x + 0.5f) * scaleX - 0.5f;
+ float yf = (y + 0.5f) * scaleY - 0.5f;
+
+ int startx = (int) floor(xf - 1);
+ int starty = (int) floor(yf - 1);
+ xf = xf - floor(xf);
+ yf = yf - floor(yf);
+ int maxx = gWidthIn - 1;
+ int maxy = gHeightIn - 1;
+
+ uint32_t xs0 = (uint32_t) max(0, startx + 0);
+ uint32_t xs1 = (uint32_t) max(0, startx + 1);
+ uint32_t xs2 = (uint32_t) min(maxx, startx + 2);
+ uint32_t xs3 = (uint32_t) min(maxx, startx + 3);
+
+ uint32_t ys0 = (uint32_t) max(0, starty + 0);
+ uint32_t ys1 = (uint32_t) max(0, starty + 1);
+ uint32_t ys2 = (uint32_t) min(maxy, starty + 2);
+ uint32_t ys3 = (uint32_t) min(maxy, starty + 3);
+
+ float4 p00 = convert_float4(rsGetElementAt_uchar4(gIn, xs0, ys0));
+ float4 p01 = convert_float4(rsGetElementAt_uchar4(gIn, xs1, ys0));
+ float4 p02 = convert_float4(rsGetElementAt_uchar4(gIn, xs2, ys0));
+ float4 p03 = convert_float4(rsGetElementAt_uchar4(gIn, xs3, ys0));
+ float4 p0 = cubicInterpolate_F4(p00, p01, p02, p03, xf);
+
+ float4 p10 = convert_float4(rsGetElementAt_uchar4(gIn, xs0, ys1));
+ float4 p11 = convert_float4(rsGetElementAt_uchar4(gIn, xs1, ys1));
+ float4 p12 = convert_float4(rsGetElementAt_uchar4(gIn, xs2, ys1));
+ float4 p13 = convert_float4(rsGetElementAt_uchar4(gIn, xs3, ys1));
+ float4 p1 = cubicInterpolate_F4(p10, p11, p12, p13, xf);
+
+ float4 p20 = convert_float4(rsGetElementAt_uchar4(gIn, xs0, ys2));
+ float4 p21 = convert_float4(rsGetElementAt_uchar4(gIn, xs1, ys2));
+ float4 p22 = convert_float4(rsGetElementAt_uchar4(gIn, xs2, ys2));
+ float4 p23 = convert_float4(rsGetElementAt_uchar4(gIn, xs3, ys2));
+ float4 p2 = cubicInterpolate_F4(p20, p21, p22, p23, xf);
+
+ float4 p30 = convert_float4(rsGetElementAt_uchar4(gIn, xs0, ys3));
+ float4 p31 = convert_float4(rsGetElementAt_uchar4(gIn, xs1, ys3));
+ float4 p32 = convert_float4(rsGetElementAt_uchar4(gIn, xs2, ys3));
+ float4 p33 = convert_float4(rsGetElementAt_uchar4(gIn, xs3, ys3));
+ float4 p3 = cubicInterpolate_F4(p30, p31, p32, p33, xf);
+
+ float4 p = cubicInterpolate_F4(p0, p1, p2, p3, yf);
+ p = clamp(p + 0.5f, 0.f, 255.f);
+ return convert_uchar4(p);
+}
+
+uchar3 __attribute__((kernel)) bicubic_U3(uint32_t x, uint32_t y) {
+ float xf = (x + 0.5f) * scaleX - 0.5f;
+ float yf = (y + 0.5f) * scaleY - 0.5f;
+
+ int startx = (int) floor(xf - 1);
+ int starty = (int) floor(yf - 1);
+ xf = xf - floor(xf);
+ yf = yf - floor(yf);
+ int maxx = gWidthIn - 1;
+ int maxy = gHeightIn - 1;
+
+ uint32_t xs0 = (uint32_t) max(0, startx + 0);
+ uint32_t xs1 = (uint32_t) max(0, startx + 1);
+ uint32_t xs2 = (uint32_t) min(maxx, startx + 2);
+ uint32_t xs3 = (uint32_t) min(maxx, startx + 3);
+
+ uint32_t ys0 = (uint32_t) max(0, starty + 0);
+ uint32_t ys1 = (uint32_t) max(0, starty + 1);
+ uint32_t ys2 = (uint32_t) min(maxy, starty + 2);
+ uint32_t ys3 = (uint32_t) min(maxy, starty + 3);
+
+ float3 p00 = convert_float3(rsGetElementAt_uchar3(gIn, xs0, ys0));
+ float3 p01 = convert_float3(rsGetElementAt_uchar3(gIn, xs1, ys0));
+ float3 p02 = convert_float3(rsGetElementAt_uchar3(gIn, xs2, ys0));
+ float3 p03 = convert_float3(rsGetElementAt_uchar3(gIn, xs3, ys0));
+ float3 p0 = cubicInterpolate_F3(p00, p01, p02, p03, xf);
+
+ float3 p10 = convert_float3(rsGetElementAt_uchar3(gIn, xs0, ys1));
+ float3 p11 = convert_float3(rsGetElementAt_uchar3(gIn, xs1, ys1));
+ float3 p12 = convert_float3(rsGetElementAt_uchar3(gIn, xs2, ys1));
+ float3 p13 = convert_float3(rsGetElementAt_uchar3(gIn, xs3, ys1));
+ float3 p1 = cubicInterpolate_F3(p10, p11, p12, p13, xf);
+
+ float3 p20 = convert_float3(rsGetElementAt_uchar3(gIn, xs0, ys2));
+ float3 p21 = convert_float3(rsGetElementAt_uchar3(gIn, xs1, ys2));
+ float3 p22 = convert_float3(rsGetElementAt_uchar3(gIn, xs2, ys2));
+ float3 p23 = convert_float3(rsGetElementAt_uchar3(gIn, xs3, ys2));
+ float3 p2 = cubicInterpolate_F3(p20, p21, p22, p23, xf);
+
+ float3 p30 = convert_float3(rsGetElementAt_uchar3(gIn, xs0, ys3));
+ float3 p31 = convert_float3(rsGetElementAt_uchar3(gIn, xs1, ys3));
+ float3 p32 = convert_float3(rsGetElementAt_uchar3(gIn, xs2, ys3));
+ float3 p33 = convert_float3(rsGetElementAt_uchar3(gIn, xs3, ys3));
+ float3 p3 = cubicInterpolate_F3(p30, p31, p32, p33, xf);
+
+ float3 p = cubicInterpolate_F3(p0, p1, p2, p3, yf);
+ p = clamp(p + 0.5f, 0.f, 255.f);
+ return convert_uchar3(p);
+}
+
+uchar2 __attribute__((kernel)) bicubic_U2(uint32_t x, uint32_t y) {
+ float xf = (x + 0.5f) * scaleX - 0.5f;
+ float yf = (y + 0.5f) * scaleY - 0.5f;
+
+ int startx = (int) floor(xf - 1);
+ int starty = (int) floor(yf - 1);
+ xf = xf - floor(xf);
+ yf = yf - floor(yf);
+ int maxx = gWidthIn - 1;
+ int maxy = gHeightIn - 1;
+
+ uint32_t xs0 = (uint32_t) max(0, startx + 0);
+ uint32_t xs1 = (uint32_t) max(0, startx + 1);
+ uint32_t xs2 = (uint32_t) min(maxx, startx + 2);
+ uint32_t xs3 = (uint32_t) min(maxx, startx + 3);
+
+ uint32_t ys0 = (uint32_t) max(0, starty + 0);
+ uint32_t ys1 = (uint32_t) max(0, starty + 1);
+ uint32_t ys2 = (uint32_t) min(maxy, starty + 2);
+ uint32_t ys3 = (uint32_t) min(maxy, starty + 3);
+
+ float2 p00 = convert_float2(rsGetElementAt_uchar2(gIn, xs0, ys0));
+ float2 p01 = convert_float2(rsGetElementAt_uchar2(gIn, xs1, ys0));
+ float2 p02 = convert_float2(rsGetElementAt_uchar2(gIn, xs2, ys0));
+ float2 p03 = convert_float2(rsGetElementAt_uchar2(gIn, xs3, ys0));
+ float2 p0 = cubicInterpolate_F2(p00, p01, p02, p03, xf);
+
+ float2 p10 = convert_float2(rsGetElementAt_uchar2(gIn, xs0, ys1));
+ float2 p11 = convert_float2(rsGetElementAt_uchar2(gIn, xs1, ys1));
+ float2 p12 = convert_float2(rsGetElementAt_uchar2(gIn, xs2, ys1));
+ float2 p13 = convert_float2(rsGetElementAt_uchar2(gIn, xs3, ys1));
+ float2 p1 = cubicInterpolate_F2(p10, p11, p12, p13, xf);
+
+ float2 p20 = convert_float2(rsGetElementAt_uchar2(gIn, xs0, ys2));
+ float2 p21 = convert_float2(rsGetElementAt_uchar2(gIn, xs1, ys2));
+ float2 p22 = convert_float2(rsGetElementAt_uchar2(gIn, xs2, ys2));
+ float2 p23 = convert_float2(rsGetElementAt_uchar2(gIn, xs3, ys2));
+ float2 p2 = cubicInterpolate_F2(p20, p21, p22, p23, xf);
+
+ float2 p30 = convert_float2(rsGetElementAt_uchar2(gIn, xs0, ys3));
+ float2 p31 = convert_float2(rsGetElementAt_uchar2(gIn, xs1, ys3));
+ float2 p32 = convert_float2(rsGetElementAt_uchar2(gIn, xs2, ys3));
+ float2 p33 = convert_float2(rsGetElementAt_uchar2(gIn, xs3, ys3));
+ float2 p3 = cubicInterpolate_F2(p30, p31, p32, p33, xf);
+
+ float2 p = cubicInterpolate_F2(p0, p1, p2, p3, yf);
+ p = clamp(p + 0.5f, 0.f, 255.f);
+ return convert_uchar2(p);
+}
+
+uchar __attribute__((kernel)) bicubic_U1(uint32_t x, uint32_t y) {
+ float xf = (x + 0.5f) * scaleX - 0.5f;
+ float yf = (y + 0.5f) * scaleY - 0.5f;
+
+ int startx = (int) floor(xf - 1);
+ int starty = (int) floor(yf - 1);
+ xf = xf - floor(xf);
+ yf = yf - floor(yf);
+ int maxx = gWidthIn - 1;
+ int maxy = gHeightIn - 1;
+
+ uint32_t xs0 = (uint32_t) max(0, startx + 0);
+ uint32_t xs1 = (uint32_t) max(0, startx + 1);
+ uint32_t xs2 = (uint32_t) min(maxx, startx + 2);
+ uint32_t xs3 = (uint32_t) min(maxx, startx + 3);
+
+ uint32_t ys0 = (uint32_t) max(0, starty + 0);
+ uint32_t ys1 = (uint32_t) max(0, starty + 1);
+ uint32_t ys2 = (uint32_t) min(maxy, starty + 2);
+ uint32_t ys3 = (uint32_t) min(maxy, starty + 3);
+
+ float p00 = (float)(rsGetElementAt_uchar(gIn, xs0, ys0));
+ float p01 = (float)(rsGetElementAt_uchar(gIn, xs1, ys0));
+ float p02 = (float)(rsGetElementAt_uchar(gIn, xs2, ys0));
+ float p03 = (float)(rsGetElementAt_uchar(gIn, xs3, ys0));
+ float p0 = cubicInterpolate_F1(p00, p01, p02, p03, xf);
+
+ float p10 = (float)(rsGetElementAt_uchar(gIn, xs0, ys1));
+ float p11 = (float)(rsGetElementAt_uchar(gIn, xs1, ys1));
+ float p12 = (float)(rsGetElementAt_uchar(gIn, xs2, ys1));
+ float p13 = (float)(rsGetElementAt_uchar(gIn, xs3, ys1));
+ float p1 = cubicInterpolate_F1(p10, p11, p12, p13, xf);
+
+ float p20 = (float)(rsGetElementAt_uchar(gIn, xs0, ys2));
+ float p21 = (float)(rsGetElementAt_uchar(gIn, xs1, ys2));
+ float p22 = (float)(rsGetElementAt_uchar(gIn, xs2, ys2));
+ float p23 = (float)(rsGetElementAt_uchar(gIn, xs3, ys2));
+ float p2 = cubicInterpolate_F1(p20, p21, p22, p23, xf);
+
+ float p30 = (float)(rsGetElementAt_uchar(gIn, xs0, ys3));
+ float p31 = (float)(rsGetElementAt_uchar(gIn, xs1, ys3));
+ float p32 = (float)(rsGetElementAt_uchar(gIn, xs2, ys3));
+ float p33 = (float)(rsGetElementAt_uchar(gIn, xs3, ys3));
+ float p3 = cubicInterpolate_F1(p30, p31, p32, p33, xf);
+
+ float p = cubicInterpolate_F1(p0, p1, p2, p3, yf);
+ p = clamp(p + 0.5f, 0.f, 255.f);
+ return (uchar)p;
+}
+
