mirror of
https://github.com/godotengine/godot
synced 2024-09-04 22:48:26 +00:00
259 lines
7.9 KiB
C++
259 lines
7.9 KiB
C++
/**************************************************************************/
|
|
/* atlas_texture.cpp */
|
|
/**************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/**************************************************************************/
|
|
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
|
|
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
|
|
/* */
|
|
/* Permission is hereby granted, free of charge, to any person obtaining */
|
|
/* a copy of this software and associated documentation files (the */
|
|
/* "Software"), to deal in the Software without restriction, including */
|
|
/* without limitation the rights to use, copy, modify, merge, publish, */
|
|
/* distribute, sublicense, and/or sell copies of the Software, and to */
|
|
/* permit persons to whom the Software is furnished to do so, subject to */
|
|
/* the following conditions: */
|
|
/* */
|
|
/* The above copyright notice and this permission notice shall be */
|
|
/* included in all copies or substantial portions of the Software. */
|
|
/* */
|
|
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
|
|
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
|
|
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
|
|
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
|
|
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
|
|
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
|
|
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
|
/**************************************************************************/
|
|
|
|
#include "atlas_texture.h"
|
|
|
|
int AtlasTexture::get_width() const {
|
|
if (region.size.width == 0) {
|
|
if (atlas.is_valid()) {
|
|
return atlas->get_width();
|
|
}
|
|
return 1;
|
|
} else {
|
|
return region.size.width + margin.size.width;
|
|
}
|
|
}
|
|
|
|
int AtlasTexture::get_height() const {
|
|
if (region.size.height == 0) {
|
|
if (atlas.is_valid()) {
|
|
return atlas->get_height();
|
|
}
|
|
return 1;
|
|
} else {
|
|
return region.size.height + margin.size.height;
|
|
}
|
|
}
|
|
|
|
RID AtlasTexture::get_rid() const {
|
|
if (atlas.is_valid()) {
|
|
return atlas->get_rid();
|
|
}
|
|
|
|
return RID();
|
|
}
|
|
|
|
bool AtlasTexture::has_alpha() const {
|
|
if (atlas.is_valid()) {
|
|
return atlas->has_alpha();
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void AtlasTexture::set_atlas(const Ref<Texture2D> &p_atlas) {
|
|
ERR_FAIL_COND(p_atlas == this);
|
|
if (atlas == p_atlas) {
|
|
return;
|
|
}
|
|
// Support recursive AtlasTextures.
|
|
if (Ref<AtlasTexture>(atlas).is_valid()) {
|
|
atlas->disconnect_changed(callable_mp((Resource *)this, &AtlasTexture::emit_changed));
|
|
}
|
|
atlas = p_atlas;
|
|
if (Ref<AtlasTexture>(atlas).is_valid()) {
|
|
atlas->connect_changed(callable_mp((Resource *)this, &AtlasTexture::emit_changed));
|
|
}
|
|
|
|
emit_changed();
|
|
}
|
|
|
|
Ref<Texture2D> AtlasTexture::get_atlas() const {
|
|
return atlas;
|
|
}
|
|
|
|
void AtlasTexture::set_region(const Rect2 &p_region) {
|
|
if (region == p_region) {
|
|
return;
|
|
}
|
|
region = p_region;
|
|
emit_changed();
|
|
}
|
|
|
|
Rect2 AtlasTexture::get_region() const {
|
|
return region;
|
|
}
|
|
|
|
void AtlasTexture::set_margin(const Rect2 &p_margin) {
|
|
if (margin == p_margin) {
|
|
return;
|
|
}
|
|
margin = p_margin;
|
|
emit_changed();
|
|
}
|
|
|
|
Rect2 AtlasTexture::get_margin() const {
|
|
return margin;
|
|
}
|
|
|
|
void AtlasTexture::set_filter_clip(const bool p_enable) {
|
|
filter_clip = p_enable;
|
|
emit_changed();
|
|
}
|
|
|
|
bool AtlasTexture::has_filter_clip() const {
|
|
return filter_clip;
|
|
}
|
|
|
|
void AtlasTexture::_bind_methods() {
|
|
ClassDB::bind_method(D_METHOD("set_atlas", "atlas"), &AtlasTexture::set_atlas);
|
|
ClassDB::bind_method(D_METHOD("get_atlas"), &AtlasTexture::get_atlas);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_region", "region"), &AtlasTexture::set_region);
|
|
ClassDB::bind_method(D_METHOD("get_region"), &AtlasTexture::get_region);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_margin", "margin"), &AtlasTexture::set_margin);
|
|
ClassDB::bind_method(D_METHOD("get_margin"), &AtlasTexture::get_margin);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_filter_clip", "enable"), &AtlasTexture::set_filter_clip);
|
|
ClassDB::bind_method(D_METHOD("has_filter_clip"), &AtlasTexture::has_filter_clip);
|
|
|
|
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "atlas", PROPERTY_HINT_RESOURCE_TYPE, "Texture2D"), "set_atlas", "get_atlas");
|
|
ADD_PROPERTY(PropertyInfo(Variant::RECT2, "region", PROPERTY_HINT_NONE, "suffix:px"), "set_region", "get_region");
|
|
ADD_PROPERTY(PropertyInfo(Variant::RECT2, "margin", PROPERTY_HINT_NONE, "suffix:px"), "set_margin", "get_margin");
|
|
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "filter_clip"), "set_filter_clip", "has_filter_clip");
|
|
}
|
|
|
|
void AtlasTexture::draw(RID p_canvas_item, const Point2 &p_pos, const Color &p_modulate, bool p_transpose) const {
|
|
if (!atlas.is_valid()) {
|
|
return;
|
|
}
|
|
|
|
Rect2 rc = region;
|
|
|
|
if (rc.size.width == 0) {
|
|
rc.size.width = atlas->get_width();
|
|
}
|
|
|
|
if (rc.size.height == 0) {
|
|
rc.size.height = atlas->get_height();
|
|
}
|
|
|
|
atlas->draw_rect_region(p_canvas_item, Rect2(p_pos + margin.position, rc.size), rc, p_modulate, p_transpose, filter_clip);
|
|
}
|
|
|
|
void AtlasTexture::draw_rect(RID p_canvas_item, const Rect2 &p_rect, bool p_tile, const Color &p_modulate, bool p_transpose) const {
|
|
if (!atlas.is_valid()) {
|
|
return;
|
|
}
|
|
|
|
Rect2 rc = region;
|
|
|
|
if (rc.size.width == 0) {
|
|
rc.size.width = atlas->get_width();
|
|
}
|
|
|
|
if (rc.size.height == 0) {
|
|
rc.size.height = atlas->get_height();
|
|
}
|
|
|
|
Vector2 scale = p_rect.size / (region.size + margin.size);
|
|
Rect2 dr(p_rect.position + margin.position * scale, rc.size * scale);
|
|
|
|
atlas->draw_rect_region(p_canvas_item, dr, rc, p_modulate, p_transpose, filter_clip);
|
|
}
|
|
|
|
void AtlasTexture::draw_rect_region(RID p_canvas_item, const Rect2 &p_rect, const Rect2 &p_src_rect, const Color &p_modulate, bool p_transpose, bool p_clip_uv) const {
|
|
//this might not necessarily work well if using a rect, needs to be fixed properly
|
|
if (!atlas.is_valid()) {
|
|
return;
|
|
}
|
|
|
|
Rect2 dr;
|
|
Rect2 src_c;
|
|
get_rect_region(p_rect, p_src_rect, dr, src_c);
|
|
|
|
atlas->draw_rect_region(p_canvas_item, dr, src_c, p_modulate, p_transpose, filter_clip);
|
|
}
|
|
|
|
bool AtlasTexture::get_rect_region(const Rect2 &p_rect, const Rect2 &p_src_rect, Rect2 &r_rect, Rect2 &r_src_rect) const {
|
|
if (!atlas.is_valid()) {
|
|
return false;
|
|
}
|
|
|
|
Rect2 src = p_src_rect;
|
|
if (src.size == Size2()) {
|
|
src.size = region.size;
|
|
}
|
|
Vector2 scale = p_rect.size / src.size;
|
|
|
|
src.position += (region.position - margin.position);
|
|
Rect2 src_clipped = region.intersection(src);
|
|
if (src_clipped.size == Size2()) {
|
|
return false;
|
|
}
|
|
|
|
Vector2 ofs = (src_clipped.position - src.position);
|
|
if (scale.x < 0) {
|
|
ofs.x += (src_clipped.size.x - src.size.x);
|
|
}
|
|
if (scale.y < 0) {
|
|
ofs.y += (src_clipped.size.y - src.size.y);
|
|
}
|
|
|
|
r_rect = Rect2(p_rect.position + ofs * scale, src_clipped.size * scale);
|
|
r_src_rect = src_clipped;
|
|
return true;
|
|
}
|
|
|
|
bool AtlasTexture::is_pixel_opaque(int p_x, int p_y) const {
|
|
if (!atlas.is_valid()) {
|
|
return true;
|
|
}
|
|
|
|
int x = p_x + region.position.x - margin.position.x;
|
|
int y = p_y + region.position.y - margin.position.y;
|
|
|
|
// margin edge may outside of atlas
|
|
if (x < 0 || x >= atlas->get_width()) {
|
|
return false;
|
|
}
|
|
if (y < 0 || y >= atlas->get_height()) {
|
|
return false;
|
|
}
|
|
|
|
return atlas->is_pixel_opaque(x, y);
|
|
}
|
|
|
|
Ref<Image> AtlasTexture::get_image() const {
|
|
if (atlas.is_null() || region.size.x <= 0 || region.size.y <= 0) {
|
|
return Ref<Image>();
|
|
}
|
|
|
|
Ref<Image> atlas_image = atlas->get_image();
|
|
if (atlas_image.is_null()) {
|
|
return Ref<Image>();
|
|
}
|
|
|
|
return atlas_image->get_region(region);
|
|
}
|
|
|
|
AtlasTexture::AtlasTexture() {}
|