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/*
* Copyright (c) 2020 - 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.
*/
#ifndef _TVG_PAINT_H_
#define _TVG_PAINT_H_
#include "tvgRender.h"
#include "tvgMath.h"
namespace tvg
{
enum ContextFlag : uint8_t {Invalid = 0, FastTrack = 1};
struct Iterator
{
virtual ~Iterator() {}
virtual const Paint* next() = 0;
virtual uint32_t count() = 0;
virtual void begin() = 0;
};
struct Composite
{
Paint* target;
Paint* source;
CompositeMethod method;
};
struct Paint::Impl
{
Paint* paint = nullptr;
RenderTransform* rTransform = nullptr;
Composite* compData = nullptr;
RenderMethod* renderer = nullptr;
BlendMethod blendMethod = BlendMethod::Normal; //uint8_t
uint8_t renderFlag = RenderUpdateFlag::None;
uint8_t ctxFlag = ContextFlag::Invalid;
uint8_t id;
uint8_t opacity = 255;
uint8_t refCnt = 0; //reference count
Impl(Paint* pnt) : paint(pnt) {}
~Impl()
{
if (compData) {
if (P(compData->target)->unref() == 0) delete(compData->target);
free(compData);
}
delete(rTransform);
if (renderer && (renderer->unref() == 0)) delete(renderer);
}
uint8_t ref()
{
if (refCnt == 255) TVGERR("RENDERER", "Corrupted reference count!");
return ++refCnt;
}
uint8_t unref()
{
if (refCnt == 0) TVGERR("RENDERER", "Corrupted reference count!");
return --refCnt;
}
bool transform(const Matrix& m)
{
if (!rTransform) {
if (mathIdentity(&m)) return true;
rTransform = new RenderTransform();
}
rTransform->override(m);
renderFlag |= RenderUpdateFlag::Transform;
return true;
}
Matrix* transform()
{
if (rTransform) {
if (renderFlag & RenderUpdateFlag::Transform) rTransform->update();
return &rTransform->m;
}
return nullptr;
}
bool composite(Paint* source, Paint* target, CompositeMethod method)
{
//Invalid case
if ((!target && method != CompositeMethod::None) || (target && method == CompositeMethod::None)) return false;
if (compData) {
P(compData->target)->unref();
if ((compData->target != target) && P(compData->target)->refCnt == 0) {
delete(compData->target);
}
//Reset scenario
if (!target && method == CompositeMethod::None) {
free(compData);
compData = nullptr;
return true;
}
} else {
if (!target && method == CompositeMethod::None) return true;
compData = static_cast<Composite*>(calloc(1, sizeof(Composite)));
}
P(target)->ref();
compData->target = target;
compData->source = source;
compData->method = method;
return true;
}
RenderRegion bounds(RenderMethod* renderer) const;
Iterator* iterator();
bool rotate(float degree);
bool scale(float factor);
bool translate(float x, float y);
bool bounds(float* x, float* y, float* w, float* h, bool transformed, bool stroking);
RenderData update(RenderMethod* renderer, const RenderTransform* pTransform, Array<RenderData>& clips, uint8_t opacity, RenderUpdateFlag pFlag, bool clipper = false);
bool render(RenderMethod* renderer);
Paint* duplicate();
};
}
#endif //_TVG_PAINT_H_
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