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resolve endianness issues

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This commit is contained in:
homm 2014-11-21 21:53:13 +03:00
parent 4007a78d53
commit d0c419632e
1 changed files with 23 additions and 21 deletions
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44
libImaging/BoxBlur.c
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@ -8,8 +8,8 @@
typedef UINT8 pixel[4];
void
ImagingLineBoxBlur32(UINT32 *lineOut, pixel *lineIn, int lastx, int radius, int edgeA,
void inline
ImagingLineBoxBlur32(pixel *lineOut, pixel *lineIn, int lastx, int radius, int edgeA,
int edgeB, UINT32 ww, UINT32 fw)
{
int x;
@ -28,9 +28,11 @@ ImagingLineBoxBlur32(UINT32 *lineOut, pixel *lineIn, int lastx, int radius, int
bulk[2] = (acc[2] * ww) + (lineIn[left][2] + lineIn[right][2]) * fw; \
bulk[3] = (acc[3] * ww) + (lineIn[left][3] + lineIn[right][3]) * fw;
#define SAVE(bulk) \
(UINT8)((bulk[0] + (1 << 23)) >> 24) << 0 | (UINT8)((bulk[1] + (1 << 23)) >> 24) << 8 | \
(UINT8)((bulk[2] + (1 << 23)) >> 24) << 16 | (UINT8)((bulk[3] + (1 << 23)) >> 24) << 24
#define SAVE(x, bulk) \
lineOut[x][0] = (UINT8)((bulk[0] + (1 << 23)) >> 24); \
lineOut[x][1] = (UINT8)((bulk[1] + (1 << 23)) >> 24); \
lineOut[x][2] = (UINT8)((bulk[2] + (1 << 23)) >> 24); \
lineOut[x][3] = (UINT8)((bulk[3] + (1 << 23)) >> 24);
/* Compute acc for -1 pixel (outside of image):
From "-radius-1" to "-1" get first pixel,
@ -59,21 +61,21 @@ ImagingLineBoxBlur32(UINT32 *lineOut, pixel *lineIn, int lastx, int radius, int
for (x = 0; x < edgeA; x++) {
MOVE_ACC(acc, 0, x + radius);
ADD_FAR(bulk, acc, 0, x + radius + 1);
lineOut[x] = SAVE(bulk);
SAVE(x, bulk);
}
/* Subtract previous pixel from "-radius".
Add pixels from radius. */
for (x = edgeA; x < edgeB; x++) {
MOVE_ACC(acc, x - radius - 1, x + radius);
ADD_FAR(bulk, acc, x - radius - 1, x + radius + 1);
lineOut[x] = SAVE(bulk);
SAVE(x, bulk);
}
/* Subtract previous pixel from "-radius".
Add last pixel. */
for (x = edgeB; x <= lastx; x++) {
MOVE_ACC(acc, x - radius - 1, lastx);
ADD_FAR(bulk, acc, x - radius - 1, lastx);
lineOut[x] = SAVE(bulk);
SAVE(x, bulk);
}
}
else
@ -81,17 +83,17 @@ ImagingLineBoxBlur32(UINT32 *lineOut, pixel *lineIn, int lastx, int radius, int
for (x = 0; x < edgeB; x++) {
MOVE_ACC(acc, 0, x + radius);
ADD_FAR(bulk, acc, 0, x + radius + 1);
lineOut[x] = SAVE(bulk);
SAVE(x, bulk);
}
for (x = edgeB; x < edgeA; x++) {
MOVE_ACC(acc, 0, lastx);
ADD_FAR(bulk, acc, 0, lastx);
lineOut[x] = SAVE(bulk);
SAVE(x, bulk);
}
for (x = edgeA; x <= lastx; x++) {
MOVE_ACC(acc, x - radius - 1, lastx);
ADD_FAR(bulk, acc, x - radius - 1, lastx);
lineOut[x] = SAVE(bulk);
SAVE(x, bulk);
}
}
@ -101,7 +103,7 @@ ImagingLineBoxBlur32(UINT32 *lineOut, pixel *lineIn, int lastx, int radius, int
}
void
void inline
ImagingLineBoxBlur8(UINT8 *lineOut, UINT8 *lineIn, int lastx, int radius, int edgeA,
int edgeB, UINT32 ww, UINT32 fw)
{
@ -115,8 +117,8 @@ ImagingLineBoxBlur8(UINT8 *lineOut, UINT8 *lineIn, int lastx, int radius, int ed
#define ADD_FAR(bulk, acc, left, right) \
bulk = (acc * ww) + (lineIn[left] + lineIn[right]) * fw;
#define SAVE(bulk) \
(UINT8)((bulk + (1 << 23)) >> 24)
#define SAVE(x, bulk) \
lineOut[x] = (UINT8)((bulk + (1 << 23)) >> 24)
acc = lineIn[0] * (radius + 1);
for (x = 0; x < edgeA - 1; x++) {
@ -129,17 +131,17 @@ ImagingLineBoxBlur8(UINT8 *lineOut, UINT8 *lineIn, int lastx, int radius, int ed
for (x = 0; x < edgeA; x++) {
MOVE_ACC(acc, 0, x + radius);
ADD_FAR(bulk, acc, 0, x + radius + 1);
lineOut[x] = SAVE(bulk);
SAVE(x, bulk);
}
for (x = edgeA; x < edgeB; x++) {
MOVE_ACC(acc, x - radius - 1, x + radius);
ADD_FAR(bulk, acc, x - radius - 1, x + radius + 1);
lineOut[x] = SAVE(bulk);
SAVE(x, bulk);
}
for (x = edgeB; x <= lastx; x++) {
MOVE_ACC(acc, x - radius - 1, lastx);
ADD_FAR(bulk, acc, x - radius - 1, lastx);
lineOut[x] = SAVE(bulk);
SAVE(x, bulk);
}
}
else
@ -147,17 +149,17 @@ ImagingLineBoxBlur8(UINT8 *lineOut, UINT8 *lineIn, int lastx, int radius, int ed
for (x = 0; x < edgeB; x++) {
MOVE_ACC(acc, 0, x + radius);
ADD_FAR(bulk, acc, 0, x + radius + 1);
lineOut[x] = SAVE(bulk);
SAVE(x, bulk);
}
for (x = edgeB; x < edgeA; x++) {
MOVE_ACC(acc, 0, lastx);
ADD_FAR(bulk, acc, 0, lastx);
lineOut[x] = SAVE(bulk);
SAVE(x, bulk);
}
for (x = edgeA; x <= lastx; x++) {
MOVE_ACC(acc, x - radius - 1, lastx);
ADD_FAR(bulk, acc, x - radius - 1, lastx);
lineOut[x] = SAVE(bulk);
SAVE(x, bulk);
}
}
@ -210,7 +212,7 @@ ImagingHorizontalBoxBlur(Imaging imOut, Imaging imIn, float floatRadius)
{
for (y = 0; y < imIn->ysize; y++) {
ImagingLineBoxBlur32(
imIn == imOut ? lineOut : (UINT32 *) imOut->image32[y],
imIn == imOut ? (pixel *) lineOut : (pixel *) imOut->image32[y],
(pixel *) imIn->image32[y],
imIn->xsize - 1,
radius, edgeA, edgeB,