461 lines
15 KiB
C++
461 lines
15 KiB
C++
/**************************************************************************/
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/* gradient_texture.cpp */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#include "gradient_texture.h"
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#include "core/math/geometry_2d.h"
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GradientTexture1D::GradientTexture1D() {
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_queue_update();
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}
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GradientTexture1D::~GradientTexture1D() {
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if (texture.is_valid()) {
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ERR_FAIL_NULL(RenderingServer::get_singleton());
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RS::get_singleton()->free(texture);
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}
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}
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void GradientTexture1D::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_gradient", "gradient"), &GradientTexture1D::set_gradient);
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ClassDB::bind_method(D_METHOD("get_gradient"), &GradientTexture1D::get_gradient);
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ClassDB::bind_method(D_METHOD("set_width", "width"), &GradientTexture1D::set_width);
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// The `get_width()` method is already exposed by the parent class Texture2D.
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ClassDB::bind_method(D_METHOD("set_use_hdr", "enabled"), &GradientTexture1D::set_use_hdr);
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ClassDB::bind_method(D_METHOD("is_using_hdr"), &GradientTexture1D::is_using_hdr);
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "gradient", PROPERTY_HINT_RESOURCE_TYPE, "Gradient", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_EDITOR_INSTANTIATE_OBJECT), "set_gradient", "get_gradient");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "width", PROPERTY_HINT_RANGE, "1,16384,suffix:px"), "set_width", "get_width");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "use_hdr"), "set_use_hdr", "is_using_hdr");
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}
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void GradientTexture1D::set_gradient(Ref<Gradient> p_gradient) {
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if (p_gradient == gradient) {
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return;
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}
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if (gradient.is_valid()) {
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gradient->disconnect_changed(callable_mp(this, &GradientTexture1D::_queue_update));
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}
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gradient = p_gradient;
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if (gradient.is_valid()) {
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gradient->connect_changed(callable_mp(this, &GradientTexture1D::_queue_update));
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}
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_queue_update();
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emit_changed();
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}
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Ref<Gradient> GradientTexture1D::get_gradient() const {
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return gradient;
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}
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void GradientTexture1D::_queue_update() {
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if (update_pending) {
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return;
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}
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update_pending = true;
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callable_mp(this, &GradientTexture1D::update_now).call_deferred();
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}
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void GradientTexture1D::_update() {
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update_pending = false;
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if (gradient.is_null()) {
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return;
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}
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if (use_hdr) {
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// High dynamic range.
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Ref<Image> image = memnew(Image(width, 1, false, Image::FORMAT_RGBAF));
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Gradient &g = **gradient;
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// `create()` isn't available for non-uint8_t data, so fill in the data manually.
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for (int i = 0; i < width; i++) {
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float ofs = float(i) / (width - 1);
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image->set_pixel(i, 0, g.get_color_at_offset(ofs));
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}
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if (texture.is_valid()) {
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RID new_texture = RS::get_singleton()->texture_2d_create(image);
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RS::get_singleton()->texture_replace(texture, new_texture);
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} else {
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texture = RS::get_singleton()->texture_2d_create(image);
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}
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} else {
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// Low dynamic range. "Overbright" colors will be clamped.
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Vector<uint8_t> data;
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data.resize(width * 4);
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{
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uint8_t *wd8 = data.ptrw();
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Gradient &g = **gradient;
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for (int i = 0; i < width; i++) {
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float ofs = float(i) / (width - 1);
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Color color = g.get_color_at_offset(ofs);
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wd8[i * 4 + 0] = uint8_t(CLAMP(color.r * 255.0, 0, 255));
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wd8[i * 4 + 1] = uint8_t(CLAMP(color.g * 255.0, 0, 255));
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wd8[i * 4 + 2] = uint8_t(CLAMP(color.b * 255.0, 0, 255));
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wd8[i * 4 + 3] = uint8_t(CLAMP(color.a * 255.0, 0, 255));
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}
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}
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Ref<Image> image = memnew(Image(width, 1, false, Image::FORMAT_RGBA8, data));
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if (texture.is_valid()) {
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RID new_texture = RS::get_singleton()->texture_2d_create(image);
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RS::get_singleton()->texture_replace(texture, new_texture);
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} else {
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texture = RS::get_singleton()->texture_2d_create(image);
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}
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}
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RS::get_singleton()->texture_set_path(texture, get_path());
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}
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void GradientTexture1D::set_width(int p_width) {
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ERR_FAIL_COND_MSG(p_width <= 0 || p_width > 16384, "Texture dimensions have to be within 1 to 16384 range.");
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width = p_width;
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_queue_update();
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emit_changed();
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}
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int GradientTexture1D::get_width() const {
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return width;
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}
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void GradientTexture1D::set_use_hdr(bool p_enabled) {
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if (p_enabled == use_hdr) {
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return;
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}
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use_hdr = p_enabled;
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_queue_update();
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emit_changed();
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}
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bool GradientTexture1D::is_using_hdr() const {
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return use_hdr;
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}
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RID GradientTexture1D::get_rid() const {
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if (!texture.is_valid()) {
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texture = RS::get_singleton()->texture_2d_placeholder_create();
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}
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return texture;
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}
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Ref<Image> GradientTexture1D::get_image() const {
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const_cast<GradientTexture1D *>(this)->update_now();
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if (!texture.is_valid()) {
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return Ref<Image>();
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}
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return RenderingServer::get_singleton()->texture_2d_get(texture);
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}
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void GradientTexture1D::update_now() {
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if (update_pending) {
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_update();
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}
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}
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//////////////////
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GradientTexture2D::GradientTexture2D() {
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_queue_update();
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}
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GradientTexture2D::~GradientTexture2D() {
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if (texture.is_valid()) {
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ERR_FAIL_NULL(RenderingServer::get_singleton());
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RS::get_singleton()->free(texture);
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}
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}
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void GradientTexture2D::set_gradient(Ref<Gradient> p_gradient) {
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if (gradient == p_gradient) {
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return;
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}
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if (gradient.is_valid()) {
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gradient->disconnect_changed(callable_mp(this, &GradientTexture2D::_queue_update));
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}
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gradient = p_gradient;
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if (gradient.is_valid()) {
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gradient->connect_changed(callable_mp(this, &GradientTexture2D::_queue_update));
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}
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_queue_update();
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emit_changed();
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}
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Ref<Gradient> GradientTexture2D::get_gradient() const {
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return gradient;
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}
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void GradientTexture2D::_queue_update() {
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if (update_pending) {
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return;
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}
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update_pending = true;
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callable_mp(this, &GradientTexture2D::update_now).call_deferred();
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}
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void GradientTexture2D::_update() {
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update_pending = false;
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if (gradient.is_null()) {
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return;
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}
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Ref<Image> image;
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image.instantiate();
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if (gradient->get_point_count() <= 1) { // No need to interpolate.
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image->initialize_data(width, height, false, (use_hdr) ? Image::FORMAT_RGBAF : Image::FORMAT_RGBA8);
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image->fill((gradient->get_point_count() == 1) ? gradient->get_color(0) : Color(0, 0, 0, 1));
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} else {
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if (use_hdr) {
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image->initialize_data(width, height, false, Image::FORMAT_RGBAF);
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Gradient &g = **gradient;
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// `create()` isn't available for non-uint8_t data, so fill in the data manually.
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for (int y = 0; y < height; y++) {
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for (int x = 0; x < width; x++) {
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float ofs = _get_gradient_offset_at(x, y);
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image->set_pixel(x, y, g.get_color_at_offset(ofs));
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}
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}
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} else {
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Vector<uint8_t> data;
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data.resize(width * height * 4);
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{
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uint8_t *wd8 = data.ptrw();
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Gradient &g = **gradient;
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for (int y = 0; y < height; y++) {
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for (int x = 0; x < width; x++) {
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float ofs = _get_gradient_offset_at(x, y);
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const Color &c = g.get_color_at_offset(ofs);
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wd8[(x + (y * width)) * 4 + 0] = uint8_t(CLAMP(c.r * 255.0, 0, 255));
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wd8[(x + (y * width)) * 4 + 1] = uint8_t(CLAMP(c.g * 255.0, 0, 255));
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wd8[(x + (y * width)) * 4 + 2] = uint8_t(CLAMP(c.b * 255.0, 0, 255));
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wd8[(x + (y * width)) * 4 + 3] = uint8_t(CLAMP(c.a * 255.0, 0, 255));
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}
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}
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}
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image->set_data(width, height, false, Image::FORMAT_RGBA8, data);
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}
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}
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if (texture.is_valid()) {
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RID new_texture = RS::get_singleton()->texture_2d_create(image);
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RS::get_singleton()->texture_replace(texture, new_texture);
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} else {
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texture = RS::get_singleton()->texture_2d_create(image);
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}
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RS::get_singleton()->texture_set_path(texture, get_path());
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}
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float GradientTexture2D::_get_gradient_offset_at(int x, int y) const {
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if (fill_to == fill_from) {
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return 0;
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}
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float ofs = 0;
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Vector2 pos;
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if (width > 1) {
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pos.x = static_cast<float>(x) / (width - 1);
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}
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if (height > 1) {
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pos.y = static_cast<float>(y) / (height - 1);
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}
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if (fill == Fill::FILL_LINEAR) {
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Vector2 segment[2];
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segment[0] = fill_from;
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segment[1] = fill_to;
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Vector2 closest = Geometry2D::get_closest_point_to_segment_uncapped(pos, &segment[0]);
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ofs = (closest - fill_from).length() / (fill_to - fill_from).length();
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if ((closest - fill_from).dot(fill_to - fill_from) < 0) {
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ofs *= -1;
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}
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} else if (fill == Fill::FILL_RADIAL) {
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ofs = (pos - fill_from).length() / (fill_to - fill_from).length();
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} else if (fill == Fill::FILL_SQUARE) {
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ofs = MAX(Math::abs(pos.x - fill_from.x), Math::abs(pos.y - fill_from.y)) / MAX(Math::abs(fill_to.x - fill_from.x), Math::abs(fill_to.y - fill_from.y));
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}
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if (repeat == Repeat::REPEAT_NONE) {
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ofs = CLAMP(ofs, 0.0, 1.0);
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} else if (repeat == Repeat::REPEAT) {
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ofs = Math::fmod(ofs, 1.0f);
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if (ofs < 0) {
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ofs = 1 + ofs;
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}
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} else if (repeat == Repeat::REPEAT_MIRROR) {
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ofs = Math::abs(ofs);
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ofs = Math::fmod(ofs, 2.0f);
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if (ofs > 1.0) {
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ofs = 2.0 - ofs;
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}
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}
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return ofs;
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}
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void GradientTexture2D::set_width(int p_width) {
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ERR_FAIL_COND_MSG(p_width <= 0 || p_width > 16384, "Texture dimensions have to be within 1 to 16384 range.");
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width = p_width;
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_queue_update();
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emit_changed();
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}
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int GradientTexture2D::get_width() const {
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return width;
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}
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void GradientTexture2D::set_height(int p_height) {
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ERR_FAIL_COND_MSG(p_height <= 0 || p_height > 16384, "Texture dimensions have to be within 1 to 16384 range.");
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height = p_height;
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_queue_update();
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emit_changed();
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}
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int GradientTexture2D::get_height() const {
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return height;
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}
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void GradientTexture2D::set_use_hdr(bool p_enabled) {
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if (p_enabled == use_hdr) {
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return;
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}
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use_hdr = p_enabled;
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_queue_update();
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emit_changed();
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}
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bool GradientTexture2D::is_using_hdr() const {
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return use_hdr;
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}
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void GradientTexture2D::set_fill_from(Vector2 p_fill_from) {
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fill_from = p_fill_from;
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_queue_update();
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emit_changed();
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}
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Vector2 GradientTexture2D::get_fill_from() const {
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return fill_from;
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}
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void GradientTexture2D::set_fill_to(Vector2 p_fill_to) {
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fill_to = p_fill_to;
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_queue_update();
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emit_changed();
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}
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Vector2 GradientTexture2D::get_fill_to() const {
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return fill_to;
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}
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void GradientTexture2D::set_fill(Fill p_fill) {
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fill = p_fill;
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_queue_update();
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emit_changed();
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}
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GradientTexture2D::Fill GradientTexture2D::get_fill() const {
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return fill;
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}
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void GradientTexture2D::set_repeat(Repeat p_repeat) {
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repeat = p_repeat;
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_queue_update();
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emit_changed();
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}
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GradientTexture2D::Repeat GradientTexture2D::get_repeat() const {
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return repeat;
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}
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RID GradientTexture2D::get_rid() const {
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if (!texture.is_valid()) {
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texture = RS::get_singleton()->texture_2d_placeholder_create();
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}
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return texture;
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}
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Ref<Image> GradientTexture2D::get_image() const {
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const_cast<GradientTexture2D *>(this)->update_now();
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if (!texture.is_valid()) {
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return Ref<Image>();
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}
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return RenderingServer::get_singleton()->texture_2d_get(texture);
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}
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void GradientTexture2D::update_now() {
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if (update_pending) {
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_update();
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}
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}
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void GradientTexture2D::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_gradient", "gradient"), &GradientTexture2D::set_gradient);
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ClassDB::bind_method(D_METHOD("get_gradient"), &GradientTexture2D::get_gradient);
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ClassDB::bind_method(D_METHOD("set_width", "width"), &GradientTexture2D::set_width);
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ClassDB::bind_method(D_METHOD("set_height", "height"), &GradientTexture2D::set_height);
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ClassDB::bind_method(D_METHOD("set_use_hdr", "enabled"), &GradientTexture2D::set_use_hdr);
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ClassDB::bind_method(D_METHOD("is_using_hdr"), &GradientTexture2D::is_using_hdr);
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ClassDB::bind_method(D_METHOD("set_fill", "fill"), &GradientTexture2D::set_fill);
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ClassDB::bind_method(D_METHOD("get_fill"), &GradientTexture2D::get_fill);
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ClassDB::bind_method(D_METHOD("set_fill_from", "fill_from"), &GradientTexture2D::set_fill_from);
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ClassDB::bind_method(D_METHOD("get_fill_from"), &GradientTexture2D::get_fill_from);
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ClassDB::bind_method(D_METHOD("set_fill_to", "fill_to"), &GradientTexture2D::set_fill_to);
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ClassDB::bind_method(D_METHOD("get_fill_to"), &GradientTexture2D::get_fill_to);
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ClassDB::bind_method(D_METHOD("set_repeat", "repeat"), &GradientTexture2D::set_repeat);
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ClassDB::bind_method(D_METHOD("get_repeat"), &GradientTexture2D::get_repeat);
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "gradient", PROPERTY_HINT_RESOURCE_TYPE, "Gradient", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_EDITOR_INSTANTIATE_OBJECT), "set_gradient", "get_gradient");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "width", PROPERTY_HINT_RANGE, "1,2048,or_greater,suffix:px"), "set_width", "get_width");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "height", PROPERTY_HINT_RANGE, "1,2048,or_greater,suffix:px"), "set_height", "get_height");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "use_hdr"), "set_use_hdr", "is_using_hdr");
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ADD_GROUP("Fill", "fill_");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "fill", PROPERTY_HINT_ENUM, "Linear,Radial,Square"), "set_fill", "get_fill");
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ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "fill_from"), "set_fill_from", "get_fill_from");
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ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "fill_to"), "set_fill_to", "get_fill_to");
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ADD_GROUP("Repeat", "repeat_");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "repeat", PROPERTY_HINT_ENUM, "No Repeat,Repeat,Mirror Repeat"), "set_repeat", "get_repeat");
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BIND_ENUM_CONSTANT(FILL_LINEAR);
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BIND_ENUM_CONSTANT(FILL_RADIAL);
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BIND_ENUM_CONSTANT(FILL_SQUARE);
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BIND_ENUM_CONSTANT(REPEAT_NONE);
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BIND_ENUM_CONSTANT(REPEAT);
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BIND_ENUM_CONSTANT(REPEAT_MIRROR);
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|
}
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