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/*
* Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* FUNCTION
* Internal functions for mlib_ImageAffine with bilinear filtering.
*/
#include "mlib_ImageAffine.h"
/***************************************************************/
#define DTYPE mlib_f32
#define FTYPE DTYPE
#define FUN_NAME(CHAN) mlib_ImageAffine_f32_##CHAN##_bl
/***************************************************************/
mlib_status FUN_NAME(1ch)(mlib_affine_param *param)
{
DECLAREVAR_BL();
DTYPE *dstLineEnd;
FTYPE scale = ONE / MLIB_PREC;
mlib_s32 srcYStride1;
srcYStride /= sizeof(DTYPE);
srcYStride1 = srcYStride + 1;
for (j = yStart; j <= yFinish; j++) {
FTYPE t, u, k0, k1, k2, k3;
FTYPE a00_0, a01_0, a10_0, a11_0;
FTYPE pix0;
CLIP(1);
dstLineEnd = (DTYPE *) dstData + xRight;
t = (X & MLIB_MASK) * scale;
u = (Y & MLIB_MASK) * scale;
ySrc = MLIB_POINTER_SHIFT(Y);
Y += dY;
xSrc = X >> MLIB_SHIFT;
X += dX;
srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + xSrc;
k3 = t * u;
k2 = (ONE - t) * u;
k1 = t * (ONE - u);
k0 = (ONE - t) * (ONE - u);
a00_0 = srcPixelPtr[0];
a01_0 = srcPixelPtr[1];
a10_0 = srcPixelPtr[srcYStride];
a11_0 = srcPixelPtr[srcYStride1];
for (; dstPixelPtr < dstLineEnd; dstPixelPtr++) {
pix0 = k0 * a00_0 + k1 * a01_0 + k2 * a10_0 + k3 * a11_0;
t = (X & MLIB_MASK) * scale;
u = (Y & MLIB_MASK) * scale;
ySrc = MLIB_POINTER_SHIFT(Y);
Y += dY;
xSrc = X >> MLIB_SHIFT;
X += dX;
srcPixelPtr = *(DTYPE **) ((mlib_u8 *) lineAddr + ySrc) + xSrc;
k3 = t * u;
k2 = (ONE - t) * u;
k1 = t * (ONE - u);
k0 = (ONE - t) * (ONE - u);
a00_0 = srcPixelPtr[0];
a01_0 = srcPixelPtr[1];
a10_0 = srcPixelPtr[srcYStride];
a11_0 = srcPixelPtr[srcYStride1];
dstPixelPtr[0] = pix0;
}
pix0 = k0 * a00_0 + k1 * a01_0 + k2 * a10_0 + k3 * a11_0;
dstPixelPtr[0] = pix0;
}
return MLIB_SUCCESS;
}
/***************************************************************/
mlib_status FUN_NAME(2ch)(mlib_affine_param *param)
{
DECLAREVAR_BL();
DTYPE *dstLineEnd;
FTYPE scale = ONE / MLIB_PREC;
for (j = yStart; j <= yFinish; j++) {
DTYPE *srcPixelPtr2;
FTYPE t, u, k0, k1, k2, k3;
FTYPE a00_0, a01_0, a10_0, a11_0;
FTYPE a00_1, a01_1, a10_1, a11_1;
FTYPE pix0, pix1;
CLIP(2);
dstLineEnd = (DTYPE *) dstData + 2 * xRight;
t = (X & MLIB_MASK) * scale;
u = (Y & MLIB_MASK) * scale;
ySrc = MLIB_POINTER_SHIFT(Y);
Y += dY;
xSrc = X >> MLIB_SHIFT;
X += dX;
srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + 2 * xSrc;
srcPixelPtr2 = (DTYPE *) ((mlib_u8 *) srcPixelPtr + srcYStride);
k3 = t * u;
k2 = (ONE - t) * u;
k1 = t * (ONE - u);
k0 = (ONE - t) * (ONE - u);
a00_0 = srcPixelPtr[0];
a00_1 = srcPixelPtr[1];
a01_0 = srcPixelPtr[2];
a01_1 = srcPixelPtr[3];
a10_0 = srcPixelPtr2[0];
a10_1 = srcPixelPtr2[1];
a11_0 = srcPixelPtr2[2];
a11_1 = srcPixelPtr2[3];
for (; dstPixelPtr < dstLineEnd; dstPixelPtr += 2) {
pix0 = k0 * a00_0 + k1 * a01_0 + k2 * a10_0 + k3 * a11_0;
pix1 = k0 * a00_1 + k1 * a01_1 + k2 * a10_1 + k3 * a11_1;
t = (X & MLIB_MASK) * scale;
u = (Y & MLIB_MASK) * scale;
ySrc = MLIB_POINTER_SHIFT(Y);
Y += dY;
xSrc = X >> MLIB_SHIFT;
X += dX;
srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + 2 * xSrc;
srcPixelPtr2 = (DTYPE *) ((mlib_u8 *) srcPixelPtr + srcYStride);
k3 = t * u;
k2 = (ONE - t) * u;
k1 = t * (ONE - u);
k0 = (ONE - t) * (ONE - u);
a01_0 = srcPixelPtr[2];
a01_1 = srcPixelPtr[3];
a00_0 = srcPixelPtr[0];
a00_1 = srcPixelPtr[1];
a10_0 = srcPixelPtr2[0];
a10_1 = srcPixelPtr2[1];
a11_0 = srcPixelPtr2[2];
a11_1 = srcPixelPtr2[3];
dstPixelPtr[0] = pix0;
dstPixelPtr[1] = pix1;
}
pix0 = k0 * a00_0 + k1 * a01_0 + k2 * a10_0 + k3 * a11_0;
pix1 = k0 * a00_1 + k1 * a01_1 + k2 * a10_1 + k3 * a11_1;
dstPixelPtr[0] = pix0;
dstPixelPtr[1] = pix1;
}
return MLIB_SUCCESS;
}
/***************************************************************/
mlib_status FUN_NAME(3ch)(mlib_affine_param *param)
{
DECLAREVAR_BL();
DTYPE *dstLineEnd;
FTYPE scale = ONE / MLIB_PREC;
for (j = yStart; j <= yFinish; j++) {
DTYPE *srcPixelPtr2;
FTYPE t, u, k0, k1, k2, k3;
FTYPE a00_0, a01_0, a10_0, a11_0;
FTYPE a00_1, a01_1, a10_1, a11_1;
FTYPE a00_2, a01_2, a10_2, a11_2;
FTYPE pix0, pix1, pix2;
CLIP(3);
dstLineEnd = (DTYPE *) dstData + 3 * xRight;
t = (X & MLIB_MASK) * scale;
u = (Y & MLIB_MASK) * scale;
ySrc = MLIB_POINTER_SHIFT(Y);
Y += dY;
xSrc = X >> MLIB_SHIFT;
X += dX;
srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + 3 * xSrc;
srcPixelPtr2 = (DTYPE *) ((mlib_u8 *) srcPixelPtr + srcYStride);
k3 = t * u;
k2 = (ONE - t) * u;
k1 = t * (ONE - u);
k0 = (ONE - t) * (ONE - u);
a00_0 = srcPixelPtr[0];
a00_1 = srcPixelPtr[1];
a00_2 = srcPixelPtr[2];
a01_0 = srcPixelPtr[3];
a01_1 = srcPixelPtr[4];
a01_2 = srcPixelPtr[5];
a10_0 = srcPixelPtr2[0];
a10_1 = srcPixelPtr2[1];
a10_2 = srcPixelPtr2[2];
a11_0 = srcPixelPtr2[3];
a11_1 = srcPixelPtr2[4];
a11_2 = srcPixelPtr2[5];
for (; dstPixelPtr < dstLineEnd; dstPixelPtr += 3) {
pix0 = k0 * a00_0 + k1 * a01_0 + k2 * a10_0 + k3 * a11_0;
pix1 = k0 * a00_1 + k1 * a01_1 + k2 * a10_1 + k3 * a11_1;
pix2 = k0 * a00_2 + k1 * a01_2 + k2 * a10_2 + k3 * a11_2;
t = (X & MLIB_MASK) * scale;
u = (Y & MLIB_MASK) * scale;
ySrc = MLIB_POINTER_SHIFT(Y);
Y += dY;
xSrc = X >> MLIB_SHIFT;
X += dX;
srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + 3 * xSrc;
srcPixelPtr2 = (DTYPE *) ((mlib_u8 *) srcPixelPtr + srcYStride);
k3 = t * u;
k2 = (ONE - t) * u;
k1 = t * (ONE - u);
k0 = (ONE - t) * (ONE - u);
a01_0 = srcPixelPtr[3];
a01_1 = srcPixelPtr[4];
a01_2 = srcPixelPtr[5];
a00_0 = srcPixelPtr[0];
a00_1 = srcPixelPtr[1];
a00_2 = srcPixelPtr[2];
a10_0 = srcPixelPtr2[0];
a10_1 = srcPixelPtr2[1];
a10_2 = srcPixelPtr2[2];
a11_0 = srcPixelPtr2[3];
a11_1 = srcPixelPtr2[4];
a11_2 = srcPixelPtr2[5];
dstPixelPtr[0] = pix0;
dstPixelPtr[1] = pix1;
dstPixelPtr[2] = pix2;
}
pix0 = k0 * a00_0 + k1 * a01_0 + k2 * a10_0 + k3 * a11_0;
pix1 = k0 * a00_1 + k1 * a01_1 + k2 * a10_1 + k3 * a11_1;
pix2 = k0 * a00_2 + k1 * a01_2 + k2 * a10_2 + k3 * a11_2;
dstPixelPtr[0] = pix0;
dstPixelPtr[1] = pix1;
dstPixelPtr[2] = pix2;
}
return MLIB_SUCCESS;
}
/***************************************************************/
mlib_status FUN_NAME(4ch)(mlib_affine_param *param)
{
DECLAREVAR_BL();
DTYPE *dstLineEnd;
FTYPE scale = ONE / MLIB_PREC;
for (j = yStart; j <= yFinish; j++) {
DTYPE *srcPixelPtr2;
FTYPE t, u, k0, k1, k2, k3;
FTYPE a00_0, a01_0, a10_0, a11_0;
FTYPE a00_1, a01_1, a10_1, a11_1;
FTYPE a00_2, a01_2, a10_2, a11_2;
FTYPE a00_3, a01_3, a10_3, a11_3;
FTYPE pix0, pix1, pix2, pix3;
CLIP(4);
dstLineEnd = (DTYPE *) dstData + 4 * xRight;
t = (X & MLIB_MASK) * scale;
u = (Y & MLIB_MASK) * scale;
ySrc = MLIB_POINTER_SHIFT(Y);
Y += dY;
xSrc = X >> MLIB_SHIFT;
X += dX;
srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + 4 * xSrc;
srcPixelPtr2 = (DTYPE *) ((mlib_u8 *) srcPixelPtr + srcYStride);
k3 = t * u;
k2 = (ONE - t) * u;
k1 = t * (ONE - u);
k0 = (ONE - t) * (ONE - u);
a00_0 = srcPixelPtr[0];
a00_1 = srcPixelPtr[1];
a00_2 = srcPixelPtr[2];
a00_3 = srcPixelPtr[3];
a01_0 = srcPixelPtr[4];
a01_1 = srcPixelPtr[5];
a01_2 = srcPixelPtr[6];
a01_3 = srcPixelPtr[7];
a10_0 = srcPixelPtr2[0];
a10_1 = srcPixelPtr2[1];
a10_2 = srcPixelPtr2[2];
a10_3 = srcPixelPtr2[3];
a11_0 = srcPixelPtr2[4];
a11_1 = srcPixelPtr2[5];
a11_2 = srcPixelPtr2[6];
a11_3 = srcPixelPtr2[7];
for (; dstPixelPtr < dstLineEnd; dstPixelPtr += 4) {
pix0 = k0 * a00_0 + k1 * a01_0 + k2 * a10_0 + k3 * a11_0;
pix1 = k0 * a00_1 + k1 * a01_1 + k2 * a10_1 + k3 * a11_1;
pix2 = k0 * a00_2 + k1 * a01_2 + k2 * a10_2 + k3 * a11_2;
pix3 = k0 * a00_3 + k1 * a01_3 + k2 * a10_3 + k3 * a11_3;
t = (X & MLIB_MASK) * scale;
u = (Y & MLIB_MASK) * scale;
ySrc = MLIB_POINTER_SHIFT(Y);
Y += dY;
xSrc = X >> (MLIB_SHIFT - 2);
X += dX;
srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + (xSrc & ~3);
srcPixelPtr2 = (DTYPE *) ((mlib_u8 *) srcPixelPtr + srcYStride);
k3 = t * u;
k2 = (ONE - t) * u;
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