Merge pull request #69344 from DeeJayLSP/update_thorvg

Update thorvg to 0.8.3

1 files changed, 101 insertions, 47 deletions

diff --git a/thirdparty/thorvg/src/loaders/svg/tvgSvgSceneBuilder.cpp b/thirdparty/thorvg/src/loaders/svg/tvgSvgSceneBuilder.cpp
index a3f34fd46b..4cb4ffdaeb 100644
--- a/thirdparty/thorvg/src/loaders/svg/tvgSvgSceneBuilder.cpp
+++ b/thirdparty/thorvg/src/loaders/svg/tvgSvgSceneBuilder.cpp
@@ -49,9 +49,9 @@
 */
 
 
+#include "tvgMath.h" /* to include math.h before cstring */
 #include <cstring>
 #include <string>
-#include "tvgMath.h"
 #include "tvgSvgLoaderCommon.h"
 #include "tvgSvgSceneBuilder.h"
 #include "tvgSvgPath.h"
@@ -68,7 +68,7 @@ struct Box
 
 
 static bool _appendShape(SvgNode* node, Shape* shape, const Box& vBox, const string& svgPath);
-static unique_ptr<Scene> _sceneBuildHelper(const SvgNode* node, const Box& vBox, const string& svgPath, bool mask, bool* isMaskWhite = nullptr);
+static unique_ptr<Scene> _sceneBuildHelper(const SvgNode* node, const Box& vBox, const string& svgPath, bool mask, int depth, bool* isMaskWhite = nullptr);
 
 
 static inline bool _isGroupType(SvgNodeType type)
@@ -282,7 +282,7 @@ static void _applyComposition(Paint* paint, const SvgNode* node, const Box& vBox
             node->style->mask.applying = true;
 
             bool isMaskWhite = true;
-            auto comp = _sceneBuildHelper(compNode, vBox, svgPath, true, &isMaskWhite);
+            auto comp = _sceneBuildHelper(compNode, vBox, svgPath, true, 0, &isMaskWhite);
             if (comp) {
                 if (node->transform) comp->transform(*node->transform);
 
@@ -560,10 +560,84 @@ static unique_ptr<Picture> _imageBuildHelper(SvgNode* node, const Box& vBox, con
 }
 
 
-static unique_ptr<Scene> _useBuildHelper(const SvgNode* node, const Box& vBox, const string& svgPath, bool* isMaskWhite)
+static Matrix _calculateAspectRatioMatrix(AspectRatioAlign align, AspectRatioMeetOrSlice meetOrSlice, float width, float height, const Box& box)
+{
+    auto sx = width / box.w;
+    auto sy = height / box.h;
+    auto tvx = box.x * sx;
+    auto tvy = box.y * sy;
+
+    if (align == AspectRatioAlign::None)
+        return {sx, 0, -tvx, 0, sy, -tvy, 0, 0, 1};
+
+    //Scale
+    if (meetOrSlice == AspectRatioMeetOrSlice::Meet) {
+        if (sx < sy) sy = sx;
+        else sx = sy;
+    } else {
+        if (sx < sy) sx = sy;
+        else sy = sx;
+    }
+
+    //Align
+    tvx = box.x * sx;
+    tvy = box.y * sy;
+    auto tvw = box.w * sx;
+    auto tvh = box.h * sy;
+
+    switch (align) {
+        case AspectRatioAlign::XMinYMin: {
+            break;
+        }
+        case AspectRatioAlign::XMidYMin: {
+            tvx -= (width - tvw) * 0.5f;
+            break;
+        }
+        case AspectRatioAlign::XMaxYMin: {
+            tvx -= width - tvw;
+            break;
+        }
+        case AspectRatioAlign::XMinYMid: {
+            tvy -= (height - tvh) * 0.5f;
+            break;
+        }
+        case AspectRatioAlign::XMidYMid: {
+            tvx -= (width - tvw) * 0.5f;
+            tvy -= (height - tvh) * 0.5f;
+            break;
+        }
+        case AspectRatioAlign::XMaxYMid: {
+            tvx -= width - tvw;
+            tvy -= (height - tvh) * 0.5f;
+            break;
+        }
+        case AspectRatioAlign::XMinYMax: {
+            tvy -= height - tvh;
+            break;
+        }
+        case AspectRatioAlign::XMidYMax: {
+            tvx -= (width - tvw) * 0.5f;
+            tvy -= height - tvh;
+            break;
+        }
+        case AspectRatioAlign::XMaxYMax: {
+            tvx -= width - tvw;
+            tvy -= height - tvh;
+            break;
+        }
+        default: {
+            break;
+        }
+    }
+
+    return {sx, 0, -tvx, 0, sy, -tvy, 0, 0, 1};
+}
+
+
+static unique_ptr<Scene> _useBuildHelper(const SvgNode* node, const Box& vBox, const string& svgPath, int depth, bool* isMaskWhite)
 {
     unique_ptr<Scene> finalScene;
-    auto scene = _sceneBuildHelper(node, vBox, svgPath, false, isMaskWhite);
+    auto scene = _sceneBuildHelper(node, vBox, svgPath, false, depth + 1, isMaskWhite);
 
     // mUseTransform = mUseTransform * mTranslate
     Matrix mUseTransform = {1, 0, 0, 0, 1, 0, 0, 0, 1};
@@ -585,20 +659,8 @@ static unique_ptr<Scene> _useBuildHelper(const SvgNode* node, const Box& vBox, c
 
         Matrix mViewBox = {1, 0, 0, 0, 1, 0, 0, 0, 1};
         if ((!mathEqual(width, vw) || !mathEqual(height, vh)) && vw > 0 && vh > 0) {
-            auto sx = width / vw;
-            auto sy = height / vh;
-            if (symbol.preserveAspect) {
-                if (sx < sy) sy = sx;
-                else sx = sy;
-            }
-
-            auto tvx = symbol.vx * sx;
-            auto tvy = symbol.vy * sy;
-            auto tvw = vw * sx;
-            auto tvh = vh * sy;
-            tvy -= (symbol.h - tvh) * 0.5f;
-            tvx -= (symbol.w - tvw) * 0.5f;
-            mViewBox = {sx, 0, -tvx, 0, sy, -tvy, 0, 0, 1};
+            Box box = {symbol.vx, symbol.vy, vw, vh};
+            mViewBox = _calculateAspectRatioMatrix(symbol.align, symbol.meetOrSlice, width, height, box);
         } else if (!mathZero(symbol.vx) || !mathZero(symbol.vy)) {
             mViewBox = {1, 0, -symbol.vx, 0, 1, -symbol.vy, 0, 0, 1};
         }
@@ -642,8 +704,15 @@ static unique_ptr<Scene> _useBuildHelper(const SvgNode* node, const Box& vBox, c
 }
 
 
-static unique_ptr<Scene> _sceneBuildHelper(const SvgNode* node, const Box& vBox, const string& svgPath, bool mask, bool* isMaskWhite)
+static unique_ptr<Scene> _sceneBuildHelper(const SvgNode* node, const Box& vBox, const string& svgPath, bool mask, int depth, bool* isMaskWhite)
 {
+    /* Exception handling: Prevent invalid SVG data input.
+       The size is the arbitrary value, we need an experimental size. */
+    if (depth > 2192) {
+        TVGERR("SVG", "Infinite recursive call - stopped after %d calls! Svg file may be incorrectly formatted.", depth);
+        return nullptr;
+    }
+
     if (_isGroupType(node->type) || mask) {
         auto scene = Scene::gen();
         // For a Symbol node, the viewBox transformation has to be applied first - see _useBuildHelper()
@@ -654,12 +723,15 @@ static unique_ptr<Scene> _sceneBuildHelper(const SvgNode* node, const Box& vBox,
             for (uint32_t i = 0; i < node->child.count; ++i, ++child) {
                 if (_isGroupType((*child)->type)) {
                     if ((*child)->type == SvgNodeType::Use)
-                        scene->push(_useBuildHelper(*child, vBox, svgPath, isMaskWhite));
+                        scene->push(_useBuildHelper(*child, vBox, svgPath, depth + 1, isMaskWhite));
                     else
-                        scene->push(_sceneBuildHelper(*child, vBox, svgPath, false, isMaskWhite));
+                        scene->push(_sceneBuildHelper(*child, vBox, svgPath, false, depth + 1, isMaskWhite));
                 } else if ((*child)->type == SvgNodeType::Image) {
                     auto image = _imageBuildHelper(*child, vBox, svgPath);
-                    if (image) scene->push(move(image));
+                    if (image) {
+                        scene->push(move(image));
+                        if (isMaskWhite) *isMaskWhite = false;
+                    }
                 } else if ((*child)->type != SvgNodeType::Mask) {
                     auto shape = _shapeBuildHelper(*child, vBox, svgPath);
                     if (shape) {
@@ -688,36 +760,18 @@ static unique_ptr<Scene> _sceneBuildHelper(const SvgNode* node, const Box& vBox,
 /* External Class Implementation                                        */
 /************************************************************************/
 
-unique_ptr<Scene> svgSceneBuild(SvgNode* node, float vx, float vy, float vw, float vh, float w, float h, bool preserveAspect, const string& svgPath)
+unique_ptr<Scene> svgSceneBuild(SvgNode* node, float vx, float vy, float vw, float vh, float w, float h, AspectRatioAlign align, AspectRatioMeetOrSlice meetOrSlice, const string& svgPath)
 {
+    //TODO: aspect ratio is valid only if viewBox was set
+
     if (!node || (node->type != SvgNodeType::Doc)) return nullptr;
 
     Box vBox = {vx, vy, vw, vh};
-    auto docNode = _sceneBuildHelper(node, vBox, svgPath, false);
+    auto docNode = _sceneBuildHelper(node, vBox, svgPath, false, 0);
 
     if (!mathEqual(w, vw) || !mathEqual(h, vh)) {
-        auto sx = w / vw;
-        auto sy = h / vh;
-
-        if (preserveAspect) {
-            //Scale
-            auto scale = sx < sy ? sx : sy;
-            docNode->scale(scale);
-            //Align
-            auto tvx = vx * scale;
-            auto tvy = vy * scale;
-            auto tvw = vw * scale;
-            auto tvh = vh * scale;
-            tvx -= (w - tvw) * 0.5f;
-            tvy -= (h - tvh) * 0.5f;
-            docNode->translate(-tvx, -tvy);
-        } else {
-            //Align
-            auto tvx = vx * sx;
-            auto tvy = vy * sy;
-            Matrix m = {sx, 0, -tvx, 0, sy, -tvy, 0, 0, 1};
-            docNode->transform(m);
-        }
+        Matrix m = _calculateAspectRatioMatrix(align, meetOrSlice, w, h, vBox);
+        docNode->transform(m);
     } else if (!mathZero(vx) || !mathZero(vy)) {
         docNode->translate(-vx, -vy);
     }