mirror of
https://github.com/thorvg/thorvg.git
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a8fc3a6e50
dispose of the resources at the end of the paint deletion. This will help retain the resources of the retained paints and reuse them after reconstructing the next scene.
244 lines
7.8 KiB
C++
244 lines
7.8 KiB
C++
/*
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* Copyright (c) 2020 - 2024 the ThorVG project. All rights reserved.
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef _TVG_PICTURE_H_
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#define _TVG_PICTURE_H_
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#include <string>
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#include "tvgPaint.h"
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#include "tvgLoader.h"
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struct PictureIterator : Iterator
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{
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Paint* paint = nullptr;
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Paint* ptr = nullptr;
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PictureIterator(Paint* p) : paint(p) {}
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const Paint* next() override
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{
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if (!ptr) ptr = paint;
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else ptr = nullptr;
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return ptr;
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}
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uint32_t count() override
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{
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if (paint) return 1;
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else return 0;
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}
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void begin() override
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{
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ptr = nullptr;
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}
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};
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struct Picture::Impl
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{
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ImageLoader* loader = nullptr;
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Paint* paint = nullptr; //vector picture uses
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Surface* surface = nullptr; //bitmap picture uses
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RenderData rd = nullptr; //engine data
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float w = 0, h = 0;
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RenderMesh rm; //mesh data
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Picture* picture = nullptr;
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bool resizing = false;
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bool needComp = false; //need composition
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RenderTransform resizeTransform(const RenderTransform* pTransform);
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bool needComposition(uint8_t opacity);
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bool render(RenderMethod* renderer);
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bool size(float w, float h);
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RenderRegion bounds(RenderMethod* renderer);
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Result load(ImageLoader* ploader);
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Impl(Picture* p) : picture(p)
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{
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}
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~Impl()
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{
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LoaderMgr::retrieve(loader);
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if (surface) {
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if (auto renderer = PP(picture)->renderer) {
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renderer->dispose(rd);
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}
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}
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delete(paint);
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}
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RenderData update(RenderMethod* renderer, const RenderTransform* pTransform, Array<RenderData>& clips, uint8_t opacity, RenderUpdateFlag pFlag, bool clipper)
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{
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auto flag = load();
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if (surface) {
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auto transform = resizeTransform(pTransform);
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rd = renderer->prepare(surface, &rm, rd, &transform, clips, opacity, static_cast<RenderUpdateFlag>(pFlag | flag));
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} else if (paint) {
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if (resizing) {
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loader->resize(paint, w, h);
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resizing = false;
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}
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needComp = needComposition(opacity) ? true : false;
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rd = paint->pImpl->update(renderer, pTransform, clips, opacity, static_cast<RenderUpdateFlag>(pFlag | flag), clipper);
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}
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return rd;
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}
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bool bounds(float* x, float* y, float* w, float* h, bool stroking)
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{
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if (rm.triangleCnt > 0) {
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auto triangles = rm.triangles;
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auto min = triangles[0].vertex[0].pt;
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auto max = triangles[0].vertex[0].pt;
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for (uint32_t i = 0; i < rm.triangleCnt; ++i) {
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if (triangles[i].vertex[0].pt.x < min.x) min.x = triangles[i].vertex[0].pt.x;
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else if (triangles[i].vertex[0].pt.x > max.x) max.x = triangles[i].vertex[0].pt.x;
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if (triangles[i].vertex[0].pt.y < min.y) min.y = triangles[i].vertex[0].pt.y;
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else if (triangles[i].vertex[0].pt.y > max.y) max.y = triangles[i].vertex[0].pt.y;
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if (triangles[i].vertex[1].pt.x < min.x) min.x = triangles[i].vertex[1].pt.x;
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else if (triangles[i].vertex[1].pt.x > max.x) max.x = triangles[i].vertex[1].pt.x;
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if (triangles[i].vertex[1].pt.y < min.y) min.y = triangles[i].vertex[1].pt.y;
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else if (triangles[i].vertex[1].pt.y > max.y) max.y = triangles[i].vertex[1].pt.y;
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if (triangles[i].vertex[2].pt.x < min.x) min.x = triangles[i].vertex[2].pt.x;
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else if (triangles[i].vertex[2].pt.x > max.x) max.x = triangles[i].vertex[2].pt.x;
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if (triangles[i].vertex[2].pt.y < min.y) min.y = triangles[i].vertex[2].pt.y;
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else if (triangles[i].vertex[2].pt.y > max.y) max.y = triangles[i].vertex[2].pt.y;
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}
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if (x) *x = min.x;
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if (y) *y = min.y;
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if (w) *w = max.x - min.x;
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if (h) *h = max.y - min.y;
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} else {
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if (x) *x = 0;
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if (y) *y = 0;
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if (w) *w = this->w;
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if (h) *h = this->h;
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}
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return true;
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}
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Result load(const string& path)
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{
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if (paint || surface) return Result::InsufficientCondition;
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bool invalid; //Invalid Path
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auto loader = static_cast<ImageLoader*>(LoaderMgr::loader(path, &invalid));
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if (!loader) {
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if (invalid) return Result::InvalidArguments;
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return Result::NonSupport;
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}
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return load(loader);
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}
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Result load(const char* data, uint32_t size, const string& mimeType, bool copy)
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{
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if (paint || surface) return Result::InsufficientCondition;
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auto loader = static_cast<ImageLoader*>(LoaderMgr::loader(data, size, mimeType, copy));
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if (!loader) return Result::NonSupport;
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return load(loader);
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}
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Result load(uint32_t* data, uint32_t w, uint32_t h, bool copy)
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{
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if (paint || surface) return Result::InsufficientCondition;
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auto loader = static_cast<ImageLoader*>(LoaderMgr::loader(data, w, h, copy));
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if (!loader) return Result::FailedAllocation;
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return load(loader);
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}
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void mesh(const Polygon* triangles, const uint32_t triangleCnt)
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{
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if (triangles && triangleCnt > 0) {
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this->rm.triangleCnt = triangleCnt;
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this->rm.triangles = (Polygon*)malloc(sizeof(Polygon) * triangleCnt);
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memcpy(this->rm.triangles, triangles, sizeof(Polygon) * triangleCnt);
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} else {
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free(this->rm.triangles);
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this->rm.triangles = nullptr;
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this->rm.triangleCnt = 0;
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}
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}
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Paint* duplicate()
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{
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load();
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auto ret = Picture::gen().release();
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auto dup = ret->pImpl;
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if (paint) dup->paint = paint->duplicate();
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if (loader) {
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dup->loader = loader;
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++dup->loader->sharing;
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}
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dup->surface = surface;
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dup->w = w;
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dup->h = h;
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dup->resizing = resizing;
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if (rm.triangleCnt > 0) {
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dup->rm.triangleCnt = rm.triangleCnt;
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dup->rm.triangles = (Polygon*)malloc(sizeof(Polygon) * rm.triangleCnt);
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memcpy(dup->rm.triangles, rm.triangles, sizeof(Polygon) * rm.triangleCnt);
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}
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return ret;
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}
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Iterator* iterator()
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{
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load();
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return new PictureIterator(paint);
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}
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uint32_t* data(uint32_t* w, uint32_t* h)
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{
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//Try it, If not loaded yet.
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load();
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if (loader) {
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if (w) *w = static_cast<uint32_t>(loader->w);
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if (h) *h = static_cast<uint32_t>(loader->h);
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} else {
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if (w) *w = 0;
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if (h) *h = 0;
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}
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if (surface) return surface->buf32;
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else return nullptr;
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}
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RenderUpdateFlag load();
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};
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#endif //_TVG_PICTURE_H_
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