mirror of
https://github.com/thorvg/thorvg.git
synced 2025-06-19 14:31:39 +00:00
125 lines
4.1 KiB
C++
125 lines
4.1 KiB
C++
/*
|
|
* Copyright (c) 2020 Samsung Electronics Co., Ltd. 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.
|
|
*/
|
|
#ifndef _TVG_RENDER_CPP_
|
|
#define _TVG_RENDER_CPP_
|
|
|
|
#include "tvgCommon.h"
|
|
|
|
/************************************************************************/
|
|
/* Internal Class Implementation */
|
|
/************************************************************************/
|
|
|
|
|
|
/************************************************************************/
|
|
/* External Class Implementation */
|
|
/************************************************************************/
|
|
|
|
void RenderTransform::override(const Matrix& m)
|
|
{
|
|
this->m = m;
|
|
|
|
if (m.e11 == 0.0f && m.e12 == 0.0f && m.e13 == 0.0f &&
|
|
m.e21 == 0.0f && m.e22 == 0.0f && m.e23 == 0.0f &&
|
|
m.e31 == 0.0f && m.e32 == 0.0f && m.e33 == 0.0f) {
|
|
overriding = false;
|
|
} else overriding = true;
|
|
}
|
|
|
|
|
|
bool RenderTransform::update()
|
|
{
|
|
constexpr auto PI = 3.141592f;
|
|
|
|
if (overriding) return true;
|
|
|
|
//Init Status
|
|
if (fabsf(x) <= FLT_EPSILON && fabsf(y) <= FLT_EPSILON &&
|
|
fabsf(degree) <= FLT_EPSILON && fabsf(scale - 1) <= FLT_EPSILON) {
|
|
return false;
|
|
}
|
|
|
|
//identity
|
|
m.e11 = 1.0f;
|
|
m.e12 = 0.0f;
|
|
m.e13 = 0.0f;
|
|
m.e21 = 0.0f;
|
|
m.e22 = 1.0f;
|
|
m.e23 = 0.0f;
|
|
m.e31 = 0.0f;
|
|
m.e32 = 0.0f;
|
|
m.e33 = 1.0f;
|
|
|
|
//scale
|
|
m.e11 *= scale;
|
|
m.e22 *= scale;
|
|
|
|
//rotation
|
|
if (fabsf(degree) > FLT_EPSILON) {
|
|
auto radian = degree / 180.0f * PI;
|
|
auto cosVal = cosf(radian);
|
|
auto sinVal = sinf(radian);
|
|
|
|
auto t11 = m.e11 * cosVal + m.e12 * sinVal;
|
|
auto t12 = m.e11 * -sinVal + m.e12 * cosVal;
|
|
auto t21 = m.e21 * cosVal + m.e22 * sinVal;
|
|
auto t22 = m.e21 * -sinVal + m.e22 * cosVal;
|
|
auto t13 = m.e13 * cosVal + m.e23 * sinVal;
|
|
auto t23 = m.e13 * -sinVal + m.e23 * cosVal;
|
|
|
|
m.e11 = t11;
|
|
m.e12 = t12;
|
|
m.e21 = t21;
|
|
m.e22 = t22;
|
|
m.e13 = t13;
|
|
m.e23 = t23;
|
|
}
|
|
|
|
m.e13 += x;
|
|
m.e23 += y;
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
RenderTransform::RenderTransform()
|
|
{
|
|
}
|
|
|
|
|
|
RenderTransform::RenderTransform(const RenderTransform* lhs, const RenderTransform* rhs)
|
|
{
|
|
assert(lhs && rhs);
|
|
|
|
m.e11 = lhs->m.e11 * rhs->m.e11 + lhs->m.e12 * rhs->m.e21 + lhs->m.e13 * rhs->m.e31;
|
|
m.e12 = lhs->m.e11 * rhs->m.e12 + lhs->m.e12 * rhs->m.e22 + lhs->m.e13 * rhs->m.e32;
|
|
m.e13 = lhs->m.e11 * rhs->m.e13 + lhs->m.e12 * rhs->m.e23 + lhs->m.e13 * rhs->m.e33;
|
|
|
|
m.e21 = lhs->m.e21 * rhs->m.e11 + lhs->m.e22 * rhs->m.e21 + lhs->m.e23 * rhs->m.e31;
|
|
m.e22 = lhs->m.e21 * rhs->m.e12 + lhs->m.e22 * rhs->m.e22 + lhs->m.e23 * rhs->m.e32;
|
|
m.e23 = lhs->m.e21 * rhs->m.e13 + lhs->m.e22 * rhs->m.e23 + lhs->m.e23 * rhs->m.e33;
|
|
|
|
m.e31 = lhs->m.e31 * rhs->m.e11 + lhs->m.e32 * rhs->m.e21 + lhs->m.e33 * rhs->m.e31;
|
|
m.e32 = lhs->m.e31 * rhs->m.e12 + lhs->m.e32 * rhs->m.e22 + lhs->m.e33 * rhs->m.e32;
|
|
m.e33 = lhs->m.e31 * rhs->m.e13 + lhs->m.e32 * rhs->m.e23 + lhs->m.e33 * rhs->m.e33;
|
|
}
|
|
|
|
#endif //_TVG_RENDER_CPP_
|