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Improved packed scene previews.

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This commit is contained in:
Daniel J. Ramirez 2017-11-17 21:42:14 -06:00
parent 62eda56e67
commit 59c2e8906a
3 changed files with 37 additions and 21 deletions
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23
core/image.cpp
View file

@ -757,22 +757,24 @@ void Image::resize(int p_width, int p_height, Interpolation p_interpolation) {
_copy_internals_from(dst);
}
void Image::crop(int p_width, int p_height) {
void Image::crop_from_point(int p_x, int p_y, int p_width, int p_height) {
if (!_can_modify(format)) {
ERR_EXPLAIN("Cannot crop in indexed, compressed or custom image formats.");
ERR_FAIL();
}
ERR_FAIL_COND(p_x < 0);
ERR_FAIL_COND(p_y < 0);
ERR_FAIL_COND(p_width <= 0);
ERR_FAIL_COND(p_height <= 0);
ERR_FAIL_COND(p_width > MAX_WIDTH);
ERR_FAIL_COND(p_height > MAX_HEIGHT);
ERR_FAIL_COND(p_x + p_width > MAX_WIDTH);
ERR_FAIL_COND(p_y + p_height > MAX_HEIGHT);
/* to save memory, cropping should be done in-place, however, since this function
will most likely either not be used much, or in critical areas, for now it wont, because
it's a waste of time. */
if (p_width == width && p_height == height)
if (p_width == width && p_height == height && p_x == 0 && p_y == 0)
return;
uint8_t pdata[16]; //largest is 16
@ -784,9 +786,11 @@ void Image::crop(int p_width, int p_height) {
PoolVector<uint8_t>::Read r = data.read();
PoolVector<uint8_t>::Write w = dst.data.write();
for (int y = 0; y < p_height; y++) {
int m_h = p_y + p_height;
int m_w = p_x + p_width;
for (int y = p_y; y < m_h; y++) {
for (int x = 0; x < p_width; x++) {
for (int x = p_x; x < m_w; x++) {
if ((x >= width || y >= height)) {
for (uint32_t i = 0; i < pixel_size; i++)
@ -795,7 +799,7 @@ void Image::crop(int p_width, int p_height) {
_get_pixelb(x, y, pixel_size, r.ptr(), pdata);
}
dst._put_pixelb(x, y, pixel_size, w.ptr(), pdata);
dst._put_pixelb(x - p_x, y - p_y, pixel_size, w.ptr(), pdata);
}
}
}
@ -805,6 +809,11 @@ void Image::crop(int p_width, int p_height) {
_copy_internals_from(dst);
}
void Image::crop(int p_width, int p_height) {
crop_from_point(0, 0, p_width, p_height);
}
void Image::flip_y() {
if (!_can_modify(format)) {

1
core/image.h
View file

@ -207,6 +207,7 @@ public:
/**
* Crop the image to a specific size, if larger, then the image is filled by black
*/
void crop_from_point(int p_x, int p_y, int p_width, int p_height);
void crop(int p_width, int p_height);
void flip_x();

34
editor/editor_node.cpp
View file

@ -906,23 +906,29 @@ void EditorNode::_save_scene_with_preview(String p_file, int p_idx) {
int preview_size = EditorSettings::get_singleton()->get("filesystem/file_dialog/thumbnail_size");
preview_size *= EDSCALE;
int width, height;
if (img->get_width() > preview_size && img->get_width() >= img->get_height()) {
width = preview_size;
height = img->get_height() * preview_size / img->get_width();
} else if (img->get_height() > preview_size && img->get_height() >= img->get_width()) {
height = preview_size;
width = img->get_width() * preview_size / img->get_height();
} else {
width = img->get_width();
height = img->get_height();
}
// consider a square region
int vp_size = MIN(img->get_width(), img->get_height());
int x = (img->get_width() - vp_size) / 2;
int y = (img->get_height() - vp_size) / 2;
img->convert(Image::FORMAT_RGB8);
img->resize(width, height);
if (vp_size < preview_size) {
// just square it.
img->crop_from_point(x, y, vp_size, vp_size);
} else {
int ratio = vp_size / preview_size;
int size = preview_size * (ratio / 2);
x = (img->get_width() - size) / 2;
y = (img->get_height() - size) / 2;
img->crop_from_point(x, y, size, size);
// We could get better pictures with better filters
img->resize(preview_size, preview_size, Image::INTERPOLATE_CUBIC);
}
img->flip_y();
//save thumbnail directly, as thumbnailer may not update due to actual scene not changing md5