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PfmFile::add_sub_image(), mult_sub_image()

This commit is contained in:
David Rose 2014-10-28 21:45:41 +00:00
parent 7bce2d6124
commit 5dad10cf78
2 changed files with 222 additions and 4 deletions
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216
panda/src/pnmimage/pfmFile.cxx
View File

@ -1899,7 +1899,9 @@ copy_sub_image(const PfmFile &copy, int xto, int yto,
{
for (y = ymin; y < ymax; y++) {
for (x = xmin; x < xmax; x++) {
set_point1(x, y, copy.get_point1(x - xmin + xfrom, y - ymin + yfrom));
if (copy.has_point(x - xmin + xfrom, y - ymin + yfrom)) {
set_point1(x, y, copy.get_point1(x - xmin + xfrom, y - ymin + yfrom));
}
}
}
}
@ -1909,7 +1911,9 @@ copy_sub_image(const PfmFile &copy, int xto, int yto,
{
for (y = ymin; y < ymax; y++) {
for (x = xmin; x < xmax; x++) {
set_point2(x, y, copy.get_point2(x - xmin + xfrom, y - ymin + yfrom));
if (copy.has_point(x - xmin + xfrom, y - ymin + yfrom)) {
set_point2(x, y, copy.get_point2(x - xmin + xfrom, y - ymin + yfrom));
}
}
}
}
@ -1919,7 +1923,9 @@ copy_sub_image(const PfmFile &copy, int xto, int yto,
{
for (y = ymin; y < ymax; y++) {
for (x = xmin; x < xmax; x++) {
set_point(x, y, copy.get_point(x - xmin + xfrom, y - ymin + yfrom));
if (copy.has_point(x - xmin + xfrom, y - ymin + yfrom)) {
set_point(x, y, copy.get_point(x - xmin + xfrom, y - ymin + yfrom));
}
}
}
}
@ -1929,7 +1935,9 @@ copy_sub_image(const PfmFile &copy, int xto, int yto,
{
for (y = ymin; y < ymax; y++) {
for (x = xmin; x < xmax; x++) {
set_point4(x, y, copy.get_point4(x - xmin + xfrom, y - ymin + yfrom));
if (copy.has_point(x - xmin + xfrom, y - ymin + yfrom)) {
set_point4(x, y, copy.get_point4(x - xmin + xfrom, y - ymin + yfrom));
}
}
}
}
@ -1937,6 +1945,206 @@ copy_sub_image(const PfmFile &copy, int xto, int yto,
}
}
////////////////////////////////////////////////////////////////////
// Function: PfmFile::add_sub_image
// Access: Published
// Description: Behaves like copy_sub_image(), except the copy pixels
// are added to the pixels of the destination, after
// scaling by the specified pixel_scale.
////////////////////////////////////////////////////////////////////
void PfmFile::
add_sub_image(const PfmFile &copy, int xto, int yto,
int xfrom, int yfrom, int x_size, int y_size,
double pixel_scale) {
int xmin, ymin, xmax, ymax;
setup_sub_image(copy, xto, yto, xfrom, yfrom, x_size, y_size,
xmin, ymin, xmax, ymax);
int x, y;
switch (_num_channels) {
case 1:
{
for (y = ymin; y < ymax; y++) {
for (x = xmin; x < xmax; x++) {
if (has_point(x, y) && copy.has_point(x - xmin + xfrom, y - ymin + yfrom)) {
set_point1(x, y, get_point1(x, y) + copy.get_point1(x - xmin + xfrom, y - ymin + yfrom) * pixel_scale);
}
}
}
}
break;
case 2:
{
for (y = ymin; y < ymax; y++) {
for (x = xmin; x < xmax; x++) {
if (has_point(x, y) && copy.has_point(x - xmin + xfrom, y - ymin + yfrom)) {
set_point2(x, y, get_point2(x, y) + copy.get_point2(x - xmin + xfrom, y - ymin + yfrom) * pixel_scale);
}
}
}
}
break;
case 3:
{
for (y = ymin; y < ymax; y++) {
for (x = xmin; x < xmax; x++) {
if (has_point(x, y) && copy.has_point(x - xmin + xfrom, y - ymin + yfrom)) {
set_point3(x, y, get_point3(x, y) + copy.get_point3(x - xmin + xfrom, y - ymin + yfrom) * pixel_scale);
}
}
}
}
break;
case 4:
{
for (y = ymin; y < ymax; y++) {
for (x = xmin; x < xmax; x++) {
if (has_point(x, y) && copy.has_point(x - xmin + xfrom, y - ymin + yfrom)) {
set_point4(x, y, get_point4(x, y) + copy.get_point4(x - xmin + xfrom, y - ymin + yfrom) * pixel_scale);
}
}
}
}
break;
}
}
////////////////////////////////////////////////////////////////////
// Function: PfmFile::mult_sub_image
// Access: Published
// Description: Behaves like copy_sub_image(), except the copy pixels
// are multiplied to the pixels of the destination, after
// scaling by the specified pixel_scale.
////////////////////////////////////////////////////////////////////
void PfmFile::
mult_sub_image(const PfmFile &copy, int xto, int yto,
int xfrom, int yfrom, int x_size, int y_size,
double pixel_scale) {
int xmin, ymin, xmax, ymax;
setup_sub_image(copy, xto, yto, xfrom, yfrom, x_size, y_size,
xmin, ymin, xmax, ymax);
int x, y;
switch (_num_channels) {
case 1:
{
for (y = ymin; y < ymax; y++) {
for (x = xmin; x < xmax; x++) {
if (has_point(x, y) && copy.has_point(x - xmin + xfrom, y - ymin + yfrom)) {
set_point1(x, y, get_point1(x, y) * (copy.get_point1(x - xmin + xfrom, y - ymin + yfrom) * pixel_scale));
}
}
}
}
break;
case 2:
{
for (y = ymin; y < ymax; y++) {
for (x = xmin; x < xmax; x++) {
if (has_point(x, y) && copy.has_point(x - xmin + xfrom, y - ymin + yfrom)) {
modify_point2(x, y).componentwise_mult(copy.get_point2(x - xmin + xfrom, y - ymin + yfrom) * pixel_scale);
}
}
}
}
break;
case 3:
{
for (y = ymin; y < ymax; y++) {
for (x = xmin; x < xmax; x++) {
if (has_point(x, y) && copy.has_point(x - xmin + xfrom, y - ymin + yfrom)) {
modify_point3(x, y).componentwise_mult(copy.get_point3(x - xmin + xfrom, y - ymin + yfrom) * pixel_scale);
}
}
}
}
break;
case 4:
{
for (y = ymin; y < ymax; y++) {
for (x = xmin; x < xmax; x++) {
if (has_point(x, y) && copy.has_point(x - xmin + xfrom, y - ymin + yfrom)) {
modify_point4(x, y).componentwise_mult(copy.get_point4(x - xmin + xfrom, y - ymin + yfrom) * pixel_scale);
}
}
}
}
break;
}
}
////////////////////////////////////////////////////////////////////
// Function: PfmFile::operator *=
// Access: Published
// Description: Multiplies every point value in the image by
// a constant floating-point multiplier value.
////////////////////////////////////////////////////////////////////
void PfmFile::
operator *= (double multiplier) {
nassertv(is_valid());
switch (_num_channels) {
case 1:
{
for (int y = 0; y < _y_size; ++y) {
for (int x = 0; x < _x_size; ++x) {
if (has_point(x, y)) {
PN_float32 p = get_point1(x, y);
p *= multiplier;
set_point1(x, y, p);
}
}
}
}
break;
case 2:
{
for (int y = 0; y < _y_size; ++y) {
for (int x = 0; x < _x_size; ++x) {
if (has_point(x, y)) {
LPoint2f &p = modify_point2(x, y);
p *= multiplier;
}
}
}
}
break;
case 3:
{
for (int y = 0; y < _y_size; ++y) {
for (int x = 0; x < _x_size; ++x) {
if (has_point(x, y)) {
LPoint3f &p = modify_point3(x, y);
p *= multiplier;
}
}
}
}
break;
case 4:
{
for (int y = 0; y < _y_size; ++y) {
for (int x = 0; x < _x_size; ++x) {
if (has_point(x, y)) {
LPoint4f &p = modify_point4(x, y);
p *= multiplier;
}
}
}
}
break;
}
}
////////////////////////////////////////////////////////////////////
// Function: PfmFile::output
// Access: Published

10
panda/src/pnmimage/pfmFile.h
View File

@ -140,6 +140,16 @@ PUBLISHED:
void copy_sub_image(const PfmFile &copy, int xto, int yto,
int xfrom = 0, int yfrom = 0,
int x_size = -1, int y_size = -1);
void add_sub_image(const PfmFile &copy, int xto, int yto,
int xfrom = 0, int yfrom = 0,
int x_size = -1, int y_size = -1,
double pixel_scale = 1.0);
void mult_sub_image(const PfmFile &copy, int xto, int yto,
int xfrom = 0, int yfrom = 0,
int x_size = -1, int y_size = -1,
double pixel_scale = 1.0);
void operator *= (double multiplier);
void output(ostream &out) const;