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thorvg/test/testPaint.cpp
Hermet Park 43c87b4eb5 renderer/paint: revise the Paint::bounds() behavior 
The current Paint::bounds(transform=true) returns the coordinates
of the paint in its local coordinates after transformation.

However, it did not convert the origin to the world coordinate.

This is problematic when the user wants to determine
the paint's position and size with the origin being the canvas.
Specifically, this matters that when the paint is belonged
to a certain scene.

Now, the bounds() method returns the coordinates
of the paint's bounding box with the corrected world space.
User can figure out the actual boundary within the painted result.

Remark that, this may break the functional behavior compatibility.
2024-08-07 12:02:22 +09:00

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/*
* Copyright (c) 2021 - 2024 the ThorVG project. All rights reserved.
* 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 <thorvg.h>
#include "config.h"
#include "catch.hpp"
using namespace tvg;
using namespace std;
TEST_CASE("Custom Transformation", "[tvgPaint]")
{
auto shape = Shape::gen();
REQUIRE(shape);
//Verify default transform
Matrix m1 = shape->transform();
REQUIRE(m1.e11 == Approx(1.0f).margin(0.000001));
REQUIRE(m1.e12 == Approx(0).margin(0.000001));
REQUIRE(m1.e13 == Approx(0).margin(0.000001));
REQUIRE(m1.e21 == Approx(0).margin(0.000001));
REQUIRE(m1.e22 == Approx(1.0f).margin(0.000001));
REQUIRE(m1.e23 == Approx(0).margin(0.000001));
REQUIRE(m1.e31 == Approx(0).margin(0.000001));
REQUIRE(m1.e32 == Approx(0).margin(0.000001));
REQUIRE(m1.e33 == Approx(1.0f).margin(0.000001));
//Custom transform
auto m2 = Matrix{1.0f, 2.0f, 3.0f, 4.0f, 0.0f, -4.0f, -3.0f, -2.0f, -1.0f};
REQUIRE(shape->transform(m2) == Result::Success);
auto m3 = shape->transform();
REQUIRE(m2.e11 == Approx(m3.e11).margin(0.000001));
REQUIRE(m2.e12 == Approx(m3.e12).margin(0.000001));
REQUIRE(m2.e13 == Approx(m3.e13).margin(0.000001));
REQUIRE(m2.e21 == Approx(m3.e21).margin(0.000001));
REQUIRE(m2.e22 == Approx(m3.e22).margin(0.000001));
REQUIRE(m2.e23 == Approx(m3.e23).margin(0.000001));
REQUIRE(m2.e31 == Approx(m3.e31).margin(0.000001));
REQUIRE(m2.e32 == Approx(m3.e32).margin(0.000001));
REQUIRE(m2.e33 == Approx(m3.e33).margin(0.000001));
//It's not allowed if the custom transform is applied.
REQUIRE(shape->translate(155.0f, -155.0f) == Result::InsufficientCondition);
REQUIRE(shape->scale(4.7f) == Result::InsufficientCondition);
REQUIRE(shape->rotate(45.0f) == Result::InsufficientCondition);
//Verify Transform is not modified
auto m4 = shape->transform();
REQUIRE(m2.e11 == Approx(m4.e11).margin(0.000001));
REQUIRE(m2.e12 == Approx(m4.e12).margin(0.000001));
REQUIRE(m2.e13 == Approx(m4.e13).margin(0.000001));
REQUIRE(m2.e21 == Approx(m4.e21).margin(0.000001));
REQUIRE(m2.e22 == Approx(m4.e22).margin(0.000001));
REQUIRE(m2.e23 == Approx(m4.e23).margin(0.000001));
REQUIRE(m2.e31 == Approx(m4.e31).margin(0.000001));
REQUIRE(m2.e32 == Approx(m4.e32).margin(0.000001));
REQUIRE(m2.e33 == Approx(m4.e33).margin(0.000001));
}
TEST_CASE("Basic Transformation", "[tvgPaint]")
{
auto shape = Shape::gen();
REQUIRE(shape);
REQUIRE(shape->translate(155.0f, -155.0f) == Result::Success);
REQUIRE(shape->rotate(45.0f) == Result::Success);
REQUIRE(shape->scale(4.7f) == Result::Success);
auto m = shape->transform();
REQUIRE(m.e11 == Approx(3.323402f).margin(0.000001));
REQUIRE(m.e12 == Approx(-3.323401f).margin(0.000001));
REQUIRE(m.e13 == Approx(155.0f).margin(0.000001));
REQUIRE(m.e21 == Approx(3.323401f).margin(0.000001));
REQUIRE(m.e22 == Approx(3.323402f).margin(0.000001));
REQUIRE(m.e23 == Approx(-155.0f).margin(0.000001));
REQUIRE(m.e31 == Approx(0).margin(0.000001));
REQUIRE(m.e32 == Approx(0).margin(0.000001));
REQUIRE(m.e33 == Approx(1).margin(0.000001));
}
TEST_CASE("Opacity", "[tvgPaint]")
{
auto shape = Shape::gen();
REQUIRE(shape);
REQUIRE(shape->opacity() == 255);
REQUIRE(shape->opacity(155) == Result::Success);
REQUIRE(shape->opacity() == 155);
REQUIRE(shape->opacity(-1) == Result::Success);
REQUIRE(shape->opacity() == 255);
REQUIRE(shape->opacity(0) == Result::Success);
REQUIRE(shape->opacity() == 0);
}
TEST_CASE("Bounding Box", "[tvgPaint]")
{
Initializer::init(0);
auto canvas = SwCanvas::gen();
auto shape = Shape::gen().release();
canvas->push(tvg::cast(shape));
canvas->sync();
//Negative
float x = 0, y = 0, w = 0, h = 0;
REQUIRE(shape->bounds(&x, &y, &w, &h, false) == Result::InsufficientCondition);
//Case 1
REQUIRE(shape->appendRect(0.0f, 10.0f, 20.0f, 100.0f, 50.0f, 50.0f) == Result::Success);
REQUIRE(shape->translate(100.0f, 111.0f) == Result::Success);
REQUIRE(shape->bounds(&x, &y, &w, &h, false) == Result::Success);
REQUIRE(x == 0.0f);
REQUIRE(y == 10.0f);
REQUIRE(w == 20.0f);
REQUIRE(h == 100.0f);
REQUIRE(canvas->update(shape) == Result::Success);
REQUIRE(shape->bounds(&x, &y, &w, &h, true) == Result::Success);
REQUIRE(x == 100.0f);
REQUIRE(y == 121.0f);
REQUIRE(w == 20.0f);
REQUIRE(h == 100.0f);
//Case 2
REQUIRE(shape->reset() == Result::Success);
REQUIRE(shape->moveTo(0.0f, 10.0f) == Result::Success);
REQUIRE(shape->lineTo(20.0f, 210.0f) == Result::Success);
auto identity = Matrix{1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f};
REQUIRE(shape->transform(identity) == Result::Success);
REQUIRE(shape->bounds(&x, &y, &w, &h, false) == Result::Success);
REQUIRE(x == 0.0f);
REQUIRE(y == 10.0f);
REQUIRE(w == 20.0f);
REQUIRE(h == 200.0f);
REQUIRE(canvas->update(shape) == Result::Success);
REQUIRE(shape->bounds(&x, &y, &w, &h, true) == Result::Success);
REQUIRE(x == 0.0f);
REQUIRE(y == 10.0f);
REQUIRE(w == 20.0f);
REQUIRE(h == 200.0f);
Initializer::term();
}
TEST_CASE("Duplication", "[tvgPaint]")
{
auto shape = Shape::gen();
REQUIRE(shape);
//Setup paint properties
REQUIRE(shape->opacity(0) == Result::Success);
REQUIRE(shape->translate(200.0f, 100.0f) == Result::Success);
REQUIRE(shape->scale(2.2f) == Result::Success);
REQUIRE(shape->rotate(90.0f) == Result::Success);
auto comp = Shape::gen();
REQUIRE(comp);
REQUIRE(shape->composite(std::move(comp), CompositeMethod::ClipPath) == Result::Success);
//Duplication
auto dup = tvg::cast<Shape>(shape->duplicate());
REQUIRE(dup);
//Compare properties
REQUIRE(dup->opacity() == 0);
auto m = shape->transform();
REQUIRE(m.e11 == Approx(0.0f).margin(0.000001));
REQUIRE(m.e12 == Approx(-2.2f).margin(0.000001));
REQUIRE(m.e13 == Approx(200.0f).margin(0.000001));
REQUIRE(m.e21 == Approx(2.2f).margin(0.000001));
REQUIRE(m.e22 == Approx(0.0f).margin(0.000001));
REQUIRE(m.e23 == Approx(100.0f).margin(0.000001));
REQUIRE(m.e31 == Approx(0.0f).margin(0.000001));
REQUIRE(m.e32 == Approx(0.0f).margin(0.000001));
REQUIRE(m.e33 == Approx(1.0f).margin(0.000001));
REQUIRE(dup->composite(nullptr) == CompositeMethod::ClipPath);
}
TEST_CASE("Composition", "[tvgPaint]")
{
auto shape = Shape::gen();
REQUIRE(shape);
//Negative
REQUIRE(shape->composite(nullptr) == CompositeMethod::None);
auto comp = Shape::gen();
REQUIRE(shape->composite(nullptr, CompositeMethod::ClipPath) == Result::InvalidArguments);
REQUIRE(shape->composite(std::move(comp), CompositeMethod::None) == Result::InvalidArguments);
//ClipPath
comp = Shape::gen();
auto pComp = comp.get();
REQUIRE(shape->composite(std::move(comp), CompositeMethod::ClipPath) == Result::Success);
const Paint* pComp2 = nullptr;
REQUIRE(shape->composite(&pComp2) == CompositeMethod::ClipPath);
REQUIRE(pComp == pComp2);
//AlphaMask
comp = Shape::gen();
pComp = comp.get();
REQUIRE(shape->composite(std::move(comp), CompositeMethod::AlphaMask) == Result::Success);
REQUIRE(shape->composite(&pComp2) == CompositeMethod::AlphaMask);
REQUIRE(pComp == pComp2);
//InvAlphaMask
comp = Shape::gen();
pComp = comp.get();
REQUIRE(shape->composite(std::move(comp), CompositeMethod::InvAlphaMask) == Result::Success);
REQUIRE(shape->composite(&pComp2) == CompositeMethod::InvAlphaMask);
REQUIRE(pComp == pComp2);
//LumaMask
comp = Shape::gen();
pComp = comp.get();
REQUIRE(shape->composite(std::move(comp), CompositeMethod::LumaMask) == Result::Success);
REQUIRE(shape->composite(&pComp2) == CompositeMethod::LumaMask);
REQUIRE(pComp == pComp2);
//InvLumaMask
comp = Shape::gen();
pComp = comp.get();
REQUIRE(shape->composite(std::move(comp), CompositeMethod::InvLumaMask) == Result::Success);
REQUIRE(shape->composite(&pComp2) == CompositeMethod::InvLumaMask);
REQUIRE(pComp == pComp2);
}
TEST_CASE("Blending", "[tvgPaint]")
{
auto shape = Shape::gen();
REQUIRE(shape);
//Default
REQUIRE(shape->blend() == BlendMethod::Normal);
//Add
REQUIRE(shape->blend(BlendMethod::Add) == Result::Success);
REQUIRE(shape->blend() == BlendMethod::Add);
//Screen
REQUIRE(shape->blend(BlendMethod::Screen) == Result::Success);
REQUIRE(shape->blend() == BlendMethod::Screen);
//Multiply
REQUIRE(shape->blend(BlendMethod::Multiply) == Result::Success);
REQUIRE(shape->blend() == BlendMethod::Multiply);
//Overlay
REQUIRE(shape->blend(BlendMethod::Overlay) == Result::Success);
REQUIRE(shape->blend() == BlendMethod::Overlay);
//Difference
REQUIRE(shape->blend(BlendMethod::Difference) == Result::Success);
REQUIRE(shape->blend() == BlendMethod::Difference);
//Exclusion
REQUIRE(shape->blend(BlendMethod::Exclusion) == Result::Success);
REQUIRE(shape->blend() == BlendMethod::Exclusion);
//SrcOver
REQUIRE(shape->blend(BlendMethod::SrcOver) == Result::Success);
REQUIRE(shape->blend() == BlendMethod::SrcOver);
//Darken
REQUIRE(shape->blend(BlendMethod::Darken) == Result::Success);
REQUIRE(shape->blend() == BlendMethod::Darken);
//Lighten
REQUIRE(shape->blend(BlendMethod::Lighten) == Result::Success);
REQUIRE(shape->blend() == BlendMethod::Lighten);
//ColorDodge
REQUIRE(shape->blend(BlendMethod::ColorDodge) == Result::Success);
REQUIRE(shape->blend() == BlendMethod::ColorDodge);
//ColorBurn
REQUIRE(shape->blend(BlendMethod::ColorBurn) == Result::Success);
REQUIRE(shape->blend() == BlendMethod::ColorBurn);
//HardLight
REQUIRE(shape->blend(BlendMethod::HardLight) == Result::Success);
REQUIRE(shape->blend() == BlendMethod::HardLight);
//SoftLight
REQUIRE(shape->blend(BlendMethod::SoftLight) == Result::Success);
REQUIRE(shape->blend() == BlendMethod::SoftLight);
}
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