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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_PICTURE_H_
#define _TVG_PICTURE_H_
#include <string>
#include "tvgPaint.h"
#include "tvgLoader.h"
struct PictureIterator : Iterator
{
Paint* paint = nullptr;
Paint* ptr = nullptr;
PictureIterator(Paint* p) : paint(p) {}
const Paint* next() override
{
if (!ptr) ptr = paint;
else ptr = nullptr;
return ptr;
}
uint32_t count() override
{
if (paint) return 1;
else return 0;
}
void begin() override
{
ptr = nullptr;
}
};
struct Picture::Impl
{
ImageLoader* loader = nullptr;
Paint* paint = nullptr; //vector picture uses
Surface* surface = nullptr; //bitmap picture uses
RenderData rd = nullptr; //engine data
float w = 0, h = 0;
Picture* picture = nullptr;
bool resizing = false;
bool needComp = false; //need composition
bool needComposition(uint8_t opacity);
bool render(RenderMethod* renderer);
bool size(float w, float h);
RenderRegion bounds(RenderMethod* renderer);
Result load(ImageLoader* ploader);
Impl(Picture* p) : picture(p)
{
}
~Impl()
{
LoaderMgr::retrieve(loader);
if (surface) {
if (auto renderer = PP(picture)->renderer) {
renderer->dispose(rd);
}
}
delete(paint);
}
RenderData update(RenderMethod* renderer, const Matrix& transform, Array<RenderData>& clips, uint8_t opacity, RenderUpdateFlag pFlag, TVG_UNUSED bool clipper)
{
auto flag = static_cast<RenderUpdateFlag>(pFlag | load());
if (surface) {
if (flag == RenderUpdateFlag::None) return rd;
//Overriding Transformation by the desired image size
auto sx = w / loader->w;
auto sy = h / loader->h;
auto scale = sx < sy ? sx : sy;
auto m = transform * Matrix{scale, 0, 0, 0, scale, 0, 0, 0, 1};
rd = renderer->prepare(surface, rd, m, clips, opacity, flag);
} else if (paint) {
if (resizing) {
loader->resize(paint, w, h);
resizing = false;
}
needComp = needComposition(opacity) ? true : false;
rd = paint->pImpl->update(renderer, transform, clips, opacity, flag, false);
}
return rd;
}
bool bounds(float* x, float* y, float* w, float* h, bool stroking)
{
if (x) *x = 0;
if (y) *y = 0;
if (w) *w = this->w;
if (h) *h = this->h;
return true;
}
Result load(const string& path)
{
if (paint || surface) return Result::InsufficientCondition;
bool invalid; //Invalid Path
auto loader = static_cast<ImageLoader*>(LoaderMgr::loader(path, &invalid));
if (!loader) {
if (invalid) return Result::InvalidArguments;
return Result::NonSupport;
}
return load(loader);
}
Result load(const char* data, uint32_t size, const string& mimeType, bool copy)
{
if (paint || surface) return Result::InsufficientCondition;
auto loader = static_cast<ImageLoader*>(LoaderMgr::loader(data, size, mimeType, copy));
if (!loader) return Result::NonSupport;
return load(loader);
}
Result load(uint32_t* data, uint32_t w, uint32_t h, bool copy)
{
if (paint || surface) return Result::InsufficientCondition;
auto loader = static_cast<ImageLoader*>(LoaderMgr::loader(data, w, h, copy));
if (!loader) return Result::FailedAllocation;
return load(loader);
}
Paint* duplicate(Paint* ret)
{
if (ret) TVGERR("RENDERER", "TODO: duplicate()");
load();
auto picture = Picture::gen().release();
auto dup = picture->pImpl;
if (paint) dup->paint = paint->duplicate();
if (loader) {
dup->loader = loader;
++dup->loader->sharing;
PP(picture)->renderFlag |= RenderUpdateFlag::Image;
}
dup->surface = surface;
dup->w = w;
dup->h = h;
dup->resizing = resizing;
return picture;
}
Iterator* iterator()
{
load();
return new PictureIterator(paint);
}
uint32_t* data(uint32_t* w, uint32_t* h)
{
//Try it, If not loaded yet.
load();
if (loader) {
if (w) *w = static_cast<uint32_t>(loader->w);
if (h) *h = static_cast<uint32_t>(loader->h);
} else {
if (w) *w = 0;
if (h) *h = 0;
}
if (surface) return surface->buf32;
else return nullptr;
}
RenderUpdateFlag load();
};
#endif //_TVG_PICTURE_H_
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