feat: godot-engine-source-4.3-stable

engine/thirdparty/thorvg/src/renderer/tvgSwCanvas.cpp

@@ -0,0 +1,116 @@
+/*
+ * 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 "tvgCanvas.h"
+#include "tvgLoadModule.h"
+
+#ifdef THORVG_SW_RASTER_SUPPORT
+    #include "tvgSwRenderer.h"
+#else
+    class SwRenderer : public RenderMethod
+    {
+        //Non Supported. Dummy Class */
+    };
+#endif
+
+/************************************************************************/
+/* Internal Class Implementation                                        */
+/************************************************************************/
+
+struct SwCanvas::Impl
+{
+};
+
+
+/************************************************************************/
+/* External Class Implementation                                        */
+/************************************************************************/
+
+#ifdef THORVG_SW_RASTER_SUPPORT
+SwCanvas::SwCanvas() : Canvas(SwRenderer::gen()), pImpl(nullptr)
+#else
+SwCanvas::SwCanvas() : Canvas(nullptr), pImpl(nullptr)
+#endif
+{
+}
+
+
+SwCanvas::~SwCanvas()
+{
+    delete(pImpl);
+}
+
+
+Result SwCanvas::mempool(MempoolPolicy policy) noexcept
+{
+#ifdef THORVG_SW_RASTER_SUPPORT
+    //We know renderer type, avoid dynamic_cast for performance.
+    auto renderer = static_cast<SwRenderer*>(Canvas::pImpl->renderer);
+    if (!renderer) return Result::MemoryCorruption;
+
+    //It can't change the policy during the running.
+    if (!Canvas::pImpl->paints.empty()) return Result::InsufficientCondition;
+
+    if (policy == MempoolPolicy::Individual) renderer->mempool(false);
+    else renderer->mempool(true);
+
+    return Result::Success;
+#endif
+    return Result::NonSupport;
+}
+
+
+Result SwCanvas::target(uint32_t* buffer, uint32_t stride, uint32_t w, uint32_t h, Colorspace cs) noexcept
+{
+#ifdef THORVG_SW_RASTER_SUPPORT
+    if (Canvas::pImpl->status != Status::Damanged && Canvas::pImpl->status != Status::Synced) {
+        return Result::InsufficientCondition;
+    }
+
+    //We know renderer type, avoid dynamic_cast for performance.
+    auto renderer = static_cast<SwRenderer*>(Canvas::pImpl->renderer);
+    if (!renderer) return Result::MemoryCorruption;
+
+    if (!renderer->target(buffer, stride, w, h, static_cast<ColorSpace>(cs))) return Result::InvalidArguments;
+    Canvas::pImpl->vport = {0, 0, (int32_t)w, (int32_t)h};
+    renderer->viewport(Canvas::pImpl->vport);
+
+    //FIXME: The value must be associated with an individual canvas instance.
+    ImageLoader::cs = static_cast<ColorSpace>(cs);
+
+    //Paints must be updated again with this new target.
+    Canvas::pImpl->status = Status::Damanged;
+
+    return Result::Success;
+#endif
+    return Result::NonSupport;
+}
+
+
+unique_ptr<SwCanvas> SwCanvas::gen() noexcept
+{
+#ifdef THORVG_SW_RASTER_SUPPORT
+    if (SwRenderer::init() <= 0) return nullptr;
+    return unique_ptr<SwCanvas>(new SwCanvas);
+#endif
+    return nullptr;
+}