thorvg/src/renderer/tvgPicture.cpp
Hermet Park ecabdc5ebc renderer: code refactoring
Replaced the transformation with
a strong associated data field.

This helps to reduce the binary size (-1k).
2024-09-30 15:39:52 +09:00

222 lines
5.8 KiB
C++

/*
* 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.
*/
#include "tvgPicture.h"
/************************************************************************/
/* Internal Class Implementation */
/************************************************************************/
RenderUpdateFlag Picture::Impl::load()
{
if (loader) {
if (paint) {
loader->sync();
} else {
paint = loader->paint();
if (paint) {
if (w != loader->w || h != loader->h) {
if (!resizing) {
w = loader->w;
h = loader->h;
}
loader->resize(paint, w, h);
resizing = false;
}
return RenderUpdateFlag::None;
}
}
if (!surface) {
if ((surface = loader->bitmap())) {
return RenderUpdateFlag::Image;
}
}
}
return RenderUpdateFlag::None;
}
bool Picture::Impl::needComposition(uint8_t opacity)
{
//In this case, paint(scene) would try composition itself.
if (opacity < 255) return false;
//Composition test
const Paint* target;
auto method = picture->composite(&target);
if (!target || method == tvg::CompositeMethod::ClipPath) return false;
if (target->pImpl->opacity == 255 || target->pImpl->opacity == 0) return false;
return true;
}
bool Picture::Impl::render(RenderMethod* renderer)
{
bool ret = false;
if (surface) return renderer->renderImage(rd);
else if (paint) {
Compositor* cmp = nullptr;
if (needComp) {
cmp = renderer->target(bounds(renderer), renderer->colorSpace());
renderer->beginComposite(cmp, CompositeMethod::None, 255);
}
ret = paint->pImpl->render(renderer);
if (cmp) renderer->endComposite(cmp);
}
return ret;
}
bool Picture::Impl::size(float w, float h)
{
this->w = w;
this->h = h;
resizing = true;
return true;
}
RenderRegion Picture::Impl::bounds(RenderMethod* renderer)
{
if (rd) return renderer->region(rd);
if (paint) return paint->pImpl->bounds(renderer);
return {0, 0, 0, 0};
}
Result Picture::Impl::load(ImageLoader* loader)
{
//Same resource has been loaded.
if (this->loader == loader) {
this->loader->sharing--; //make it sure the reference counting.
return Result::Success;
} else if (this->loader) {
LoaderMgr::retrieve(this->loader);
}
this->loader = loader;
if (!loader->read()) return Result::Unknown;
this->w = loader->w;
this->h = loader->h;
return Result::Success;
}
/************************************************************************/
/* External Class Implementation */
/************************************************************************/
Picture::Picture() : pImpl(new Impl(this))
{
}
Picture::~Picture()
{
delete(pImpl);
}
unique_ptr<Picture> Picture::gen() noexcept
{
return unique_ptr<Picture>(new Picture);
}
TVG_DEPRECATED uint32_t Picture::identifier() noexcept
{
return (uint32_t) Type::Picture;
}
Type Picture::type() const noexcept
{
return Type::Picture;
}
Result Picture::load(const std::string& path) noexcept
{
if (path.empty()) return Result::InvalidArguments;
return pImpl->load(path);
}
Result Picture::load(const char* data, uint32_t size, const string& mimeType, bool copy) noexcept
{
if (!data || size <= 0) return Result::InvalidArguments;
return pImpl->load(data, size, mimeType, copy);
}
TVG_DEPRECATED Result Picture::load(const char* data, uint32_t size, bool copy) noexcept
{
return load(data, size, "", copy);
}
Result Picture::load(uint32_t* data, uint32_t w, uint32_t h, bool copy) noexcept
{
if (!data || w <= 0 || h <= 0) return Result::InvalidArguments;
return pImpl->load(data, w, h, copy);
}
Result Picture::size(float w, float h) noexcept
{
if (pImpl->size(w, h)) return Result::Success;
return Result::InsufficientCondition;
}
Result Picture::size(float* w, float* h) const noexcept
{
if (!pImpl->loader) return Result::InsufficientCondition;
if (w) *w = pImpl->w;
if (h) *h = pImpl->h;
return Result::Success;
}
Result Picture::mesh(const Polygon* triangles, uint32_t triangleCnt) noexcept
{
if (!triangles && triangleCnt > 0) return Result::InvalidArguments;
if (triangles && triangleCnt == 0) return Result::InvalidArguments;
pImpl->mesh(triangles, triangleCnt);
return Result::Success;
}
uint32_t Picture::mesh(const Polygon** triangles) const noexcept
{
if (triangles) *triangles = pImpl->rm.triangles;
return pImpl->rm.triangleCnt;
}