From: JunsuChoi <jsuya.choi@samsung.com>
Date: Fri, 19 Feb 2021 06:47:44 +0000 (+0900)
Subject: common: Pointer that can declare const are refactored to use const
X-Git-Tag: accepted/tizen/unified/20210223.065502~7
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=640904fe5aeb53634eaf89ca77086b625d6dccd9;p=platform%2Fcore%2Fgraphics%2Ftizenvg.git

common: Pointer that can declare const are refactored to use const

Pointer and reference parameters should be "const" if the corresponding object is not modified
---

diff --git a/src/bindings/capi/tvgCapi.cpp b/src/bindings/capi/tvgCapi.cpp
index a75fcf9..ff80aed 100644
--- a/src/bindings/capi/tvgCapi.cpp
+++ b/src/bindings/capi/tvgCapi.cpp
@@ -165,7 +165,7 @@ TVG_EXPORT Tvg_Result tvg_paint_transform(Tvg_Paint* paint, const Tvg_Matrix* m)
 
 TVG_EXPORT Tvg_Paint* tvg_paint_duplicate(Tvg_Paint* paint)
 {
-    if (!paint) return NULL;
+    if (!paint) return nullptr;
     return (Tvg_Paint*) reinterpret_cast<Paint*>(paint)->duplicate();
 }
 
@@ -263,7 +263,7 @@ TVG_EXPORT Tvg_Result tvg_shape_append_circle(Tvg_Paint* paint, float cx, float
 TVG_EXPORT Tvg_Result tvg_shape_append_path(Tvg_Paint* paint, const Tvg_Path_Command* cmds, uint32_t cmdCnt, const Tvg_Point* pts, uint32_t ptsCnt)
 {
     if (!paint) return TVG_RESULT_INVALID_ARGUMENT;
-    return (Tvg_Result) reinterpret_cast<Shape*>(paint)->appendPath((PathCommand*)cmds, cmdCnt, (Point*)pts, ptsCnt);
+    return (Tvg_Result) reinterpret_cast<Shape*>(paint)->appendPath((const PathCommand*)cmds, cmdCnt, (const Point*)pts, ptsCnt);
 }
 
 TVG_EXPORT Tvg_Result tvg_shape_get_path_coords(const Tvg_Paint* paint, const Tvg_Point** pts, uint32_t* cnt)
diff --git a/src/lib/sw_engine/tvgSwCommon.h b/src/lib/sw_engine/tvgSwCommon.h
index 82a6023..24450db 100644
--- a/src/lib/sw_engine/tvgSwCommon.h
+++ b/src/lib/sw_engine/tvgSwCommon.h
@@ -281,15 +281,15 @@ SwFixed mathCos(SwFixed angle);
 SwFixed mathSin(SwFixed angle);
 void mathSplitCubic(SwPoint* base);
 SwFixed mathDiff(SwFixed angle1, SwFixed angle2);
-SwFixed mathLength(SwPoint& pt);
-bool mathSmallCubic(SwPoint* base, SwFixed& angleIn, SwFixed& angleMid, SwFixed& angleOut);
+SwFixed mathLength(const SwPoint& pt);
+bool mathSmallCubic(const SwPoint* base, SwFixed& angleIn, SwFixed& angleMid, SwFixed& angleOut);
 SwFixed mathMean(SwFixed angle1, SwFixed angle2);
 SwPoint mathTransform(const Point* to, const Matrix* transform);
 
 void shapeReset(SwShape* shape);
 bool shapeGenOutline(SwShape* shape, const Shape* sdata, unsigned tid, const Matrix* transform);
 bool shapePrepare(SwShape* shape, const Shape* sdata, unsigned tid, const SwSize& clip, const Matrix* transform, SwBBox& bbox);
-bool shapePrepared(SwShape* shape);
+bool shapePrepared(const SwShape* shape);
 bool shapeGenRle(SwShape* shape, const Shape* sdata, const SwSize& clip, bool antiAlias, bool hasComposite);
 void shapeDelOutline(SwShape* shape, uint32_t tid);
 void shapeResetStroke(SwShape* shape, const Shape* sdata, const Matrix* transform);
@@ -306,8 +306,8 @@ SwOutline* strokeExportOutline(SwStroke* stroke, unsigned tid);
 void strokeFree(SwStroke* stroke);
 
 bool imagePrepare(SwImage* image, const Picture* pdata, unsigned tid, const SwSize& clip, const Matrix* transform, SwBBox& bbox);
-bool imagePrepared(SwImage* image);
-bool imageGenRle(SwImage* image, TVG_UNUSED const Picture* pdata, const SwSize& clip, SwBBox& bbox, bool antiAlias, bool hasComposite);
+bool imagePrepared(const SwImage* image);
+bool imageGenRle(SwImage* image, TVG_UNUSED const Picture* pdata, const SwSize& clip, const SwBBox& bbox, bool antiAlias, bool hasComposite);
 void imageDelOutline(SwImage* image, uint32_t tid);
 void imageReset(SwImage* image);
 bool imageGenOutline(SwImage* image, const Picture* pdata, unsigned tid, const Matrix* transform);
@@ -337,7 +337,7 @@ void mpoolRetStrokeOutline(unsigned idx);
 bool rasterCompositor(SwSurface* surface);
 bool rasterGradientShape(SwSurface* surface, SwShape* shape, unsigned id);
 bool rasterSolidShape(SwSurface* surface, SwShape* shape, uint8_t r, uint8_t g, uint8_t b, uint8_t a);
-bool rasterImage(SwSurface* surface, SwImage* image, const Matrix* transform, SwBBox& bbox, uint32_t opacity);
+bool rasterImage(SwSurface* surface, SwImage* image, const Matrix* transform, const SwBBox& bbox, uint32_t opacity);
 bool rasterStroke(SwSurface* surface, SwShape* shape, uint8_t r, uint8_t g, uint8_t b, uint8_t a);
 bool rasterClear(SwSurface* surface);
 
diff --git a/src/lib/sw_engine/tvgSwFill.cpp b/src/lib/sw_engine/tvgSwFill.cpp
index 407c9d5..654da50 100644
--- a/src/lib/sw_engine/tvgSwFill.cpp
+++ b/src/lib/sw_engine/tvgSwFill.cpp
@@ -33,7 +33,7 @@
 #define FIXPT_SIZE (1<<FIXPT_BITS)
 
 
-static bool _updateColorTable(SwFill* fill, const Fill* fdata, SwSurface* surface, uint32_t opacity)
+static bool _updateColorTable(SwFill* fill, const Fill* fdata, const SwSurface* surface, uint32_t opacity)
 {
     if (!fill->ctable) {
         fill->ctable = static_cast<uint32_t*>(malloc(GRADIENT_STOP_SIZE * sizeof(uint32_t)));
@@ -311,4 +311,4 @@ void fillFree(SwFill* fill)
     if (fill->ctable) free(fill->ctable);
 
     free(fill);
-}
\ No newline at end of file
+}
diff --git a/src/lib/sw_engine/tvgSwImage.cpp b/src/lib/sw_engine/tvgSwImage.cpp
index 342a28a..d66da6a 100644
--- a/src/lib/sw_engine/tvgSwImage.cpp
+++ b/src/lib/sw_engine/tvgSwImage.cpp
@@ -34,7 +34,7 @@ static void _initBBox(SwBBox& bbox)
 }
 
 
-static bool _updateBBox(SwOutline* outline, SwBBox& bbox, const SwSize& clip)
+static bool _updateBBox(const SwOutline* outline, SwBBox& bbox, const SwSize& clip)
 {
     if (!outline) return false;
 
@@ -102,13 +102,13 @@ bool imagePrepare(SwImage* image, const Picture* pdata, unsigned tid, const SwSi
 }
 
 
-bool imagePrepared(SwImage* image)
+bool imagePrepared(const SwImage* image)
 {
     return image->rle ? true : false;
 }
 
 
-bool imageGenRle(SwImage* image, TVG_UNUSED const Picture* pdata, const SwSize& clip, SwBBox& bbox, bool antiAlias, bool hasComposite)
+bool imageGenRle(SwImage* image, TVG_UNUSED const Picture* pdata, const SwSize& clip, const SwBBox& bbox, bool antiAlias, bool hasComposite)
 {
     if ((image->rle = rleRender(image->rle, image->outline, bbox, clip, antiAlias))) return true;
 
diff --git a/src/lib/sw_engine/tvgSwMath.cpp b/src/lib/sw_engine/tvgSwMath.cpp
index 3ba1b86..33ad563 100644
--- a/src/lib/sw_engine/tvgSwMath.cpp
+++ b/src/lib/sw_engine/tvgSwMath.cpp
@@ -194,7 +194,7 @@ SwFixed mathMean(SwFixed angle1, SwFixed angle2)
 }
 
 
-bool mathSmallCubic(SwPoint* base, SwFixed& angleIn, SwFixed& angleMid, SwFixed& angleOut)
+bool mathSmallCubic(const SwPoint* base, SwFixed& angleIn, SwFixed& angleMid, SwFixed& angleOut)
 {
     auto d1 = base[2] - base[3];
     auto d2 = base[1] - base[2];
@@ -362,7 +362,7 @@ SwFixed mathCos(SwFixed angle)
 }
 
 
-SwFixed mathLength(SwPoint& pt)
+SwFixed mathLength(const SwPoint& pt)
 {
     auto v = pt;
 
diff --git a/src/lib/sw_engine/tvgSwRaster.cpp b/src/lib/sw_engine/tvgSwRaster.cpp
index ca2226e..1e116c0 100644
--- a/src/lib/sw_engine/tvgSwRaster.cpp
+++ b/src/lib/sw_engine/tvgSwRaster.cpp
@@ -85,7 +85,7 @@ static bool _identify(const Matrix* transform)
 }
 
 
-static SwBBox _clipRegion(Surface* surface, SwBBox& in)
+static SwBBox _clipRegion(const Surface* surface, const SwBBox& in)
 {
     auto bbox = in;
 
@@ -98,7 +98,7 @@ static SwBBox _clipRegion(Surface* surface, SwBBox& in)
 }
 
 
-static bool _translucent(SwSurface* surface, uint8_t a)
+static bool _translucent(const SwSurface* surface, uint8_t a)
 {
     if (a < 255) return true;
     if (!surface->compositor || surface->compositor->method == CompositeMethod::None) return false;
@@ -208,7 +208,7 @@ static bool _rasterSolidRect(SwSurface* surface, const SwBBox& region, uint32_t
 /************************************************************************/
 
 
-static bool _translucentRle(SwSurface* surface, SwRleData* rle, uint32_t color)
+static bool _translucentRle(SwSurface* surface, const SwRleData* rle, uint32_t color)
 {
     auto span = rle->spans;
     uint32_t src;
@@ -227,7 +227,7 @@ static bool _translucentRle(SwSurface* surface, SwRleData* rle, uint32_t color)
 }
 
 
-static bool _translucentRleAlphaMask(SwSurface* surface, SwRleData* rle, uint32_t color)
+static bool _translucentRleAlphaMask(SwSurface* surface, const SwRleData* rle, uint32_t color)
 {
 #ifdef THORVG_LOG_ENABLED
     printf("SW_ENGINE: Rle Alpha Mask Composition\n");
@@ -298,7 +298,7 @@ static bool _rasterTranslucentRle(SwSurface* surface, SwRleData* rle, uint32_t c
 }
 
 
-static bool _rasterSolidRle(SwSurface* surface, SwRleData* rle, uint32_t color)
+static bool _rasterSolidRle(SwSurface* surface, const SwRleData* rle, uint32_t color)
 {
     if (!rle) return false;
 
@@ -325,7 +325,7 @@ static bool _rasterSolidRle(SwSurface* surface, SwRleData* rle, uint32_t color)
 /* Image                                                                */
 /************************************************************************/
 
-static bool _rasterTranslucentImageRle(SwSurface* surface, SwRleData* rle, uint32_t *img, uint32_t w, uint32_t h, uint32_t opacity)
+static bool _rasterTranslucentImageRle(SwSurface* surface, const SwRleData* rle, uint32_t *img, uint32_t w, uint32_t h, uint32_t opacity)
 {
     auto span = rle->spans;
 
@@ -342,7 +342,7 @@ static bool _rasterTranslucentImageRle(SwSurface* surface, SwRleData* rle, uint3
 }
 
 
-static bool _rasterTranslucentImageRle(SwSurface* surface, SwRleData* rle, uint32_t *img, uint32_t w, uint32_t h, uint32_t opacity, const Matrix* invTransform)
+static bool _rasterTranslucentImageRle(SwSurface* surface, const SwRleData* rle, uint32_t *img, uint32_t w, uint32_t h, uint32_t opacity, const Matrix* invTransform)
 {
     auto span = rle->spans;
 
@@ -401,7 +401,7 @@ static bool _rasterImageRle(SwSurface* surface, SwRleData* rle, uint32_t *img, u
 }
 
 
-static bool _translucentImage(SwSurface* surface, uint32_t *img, uint32_t w, uint32_t h, uint32_t opacity, const SwBBox& region, const Matrix* invTransform)
+static bool _translucentImage(SwSurface* surface, const uint32_t *img, uint32_t w, uint32_t h, uint32_t opacity, const SwBBox& region, const Matrix* invTransform)
 {
     for (auto y = region.min.y; y < region.max.y; ++y) {
         auto dst = &surface->buffer[y * surface->stride + region.min.x];
@@ -419,7 +419,7 @@ static bool _translucentImage(SwSurface* surface, uint32_t *img, uint32_t w, uin
 }
 
 
-static bool _translucentImageAlphaMask(SwSurface* surface, uint32_t *img, uint32_t w, uint32_t h, uint32_t opacity, const SwBBox& region, const Matrix* invTransform)
+static bool _translucentImageAlphaMask(SwSurface* surface, const uint32_t *img, uint32_t w, uint32_t h, uint32_t opacity, const SwBBox& region, const Matrix* invTransform)
 {
 #ifdef THORVG_LOG_ENABLED
     printf("SW_ENGINE: Transformed Image Alpha Mask Composition\n");
@@ -440,7 +440,7 @@ static bool _translucentImageAlphaMask(SwSurface* surface, uint32_t *img, uint32
     return true;
 }
 
-static bool _translucentImageInvAlphaMask(SwSurface* surface, uint32_t *img, uint32_t w, uint32_t h, uint32_t opacity, const SwBBox& region, const Matrix* invTransform)
+static bool _translucentImageInvAlphaMask(SwSurface* surface, const uint32_t *img, uint32_t w, uint32_t h, uint32_t opacity, const SwBBox& region, const Matrix* invTransform)
 {
 #ifdef THORVG_LOG_ENABLED
     printf("SW_ENGINE: Transformed Image Alpha Mask Composition\n");
@@ -461,7 +461,7 @@ static bool _translucentImageInvAlphaMask(SwSurface* surface, uint32_t *img, uin
     return true;
 }
 
-static bool _rasterTranslucentImage(SwSurface* surface, uint32_t *img, uint32_t w, uint32_t h, uint32_t opacity, const SwBBox& region, const Matrix* invTransform)
+static bool _rasterTranslucentImage(SwSurface* surface, const uint32_t *img, uint32_t w, uint32_t h, uint32_t opacity, const SwBBox& region, const Matrix* invTransform)
 {
     if (surface->compositor) {
         if (surface->compositor->method == CompositeMethod::AlphaMask) {
@@ -568,7 +568,7 @@ static bool _rasterImage(SwSurface* surface, uint32_t *img, uint32_t w, uint32_t
 }
 
 
-static bool _rasterImage(SwSurface* surface, uint32_t *img, uint32_t w, uint32_t h, const SwBBox& region, const Matrix* invTransform)
+static bool _rasterImage(SwSurface* surface, const uint32_t *img, uint32_t w, uint32_t h, const SwBBox& region, const Matrix* invTransform)
 {
     for (auto y = region.min.y; y < region.max.y; ++y) {
         auto dst = &surface->buffer[y * surface->stride + region.min.x];
@@ -653,7 +653,7 @@ static bool _rasterRadialGradientRect(SwSurface* surface, const SwBBox& region,
 }
 
 
-static bool _rasterLinearGradientRle(SwSurface* surface, SwRleData* rle, const SwFill* fill)
+static bool _rasterLinearGradientRle(SwSurface* surface, const SwRleData* rle, const SwFill* fill)
 {
     if (!rle || !fill || fill->linear.len < FLT_EPSILON) return false;
 
@@ -699,7 +699,7 @@ static bool _rasterLinearGradientRle(SwSurface* surface, SwRleData* rle, const S
 }
 
 
-static bool _rasterRadialGradientRle(SwSurface* surface, SwRleData* rle, const SwFill* fill)
+static bool _rasterRadialGradientRle(SwSurface* surface, const SwRleData* rle, const SwFill* fill)
 {
     if (!rle || !fill || fill->radial.a < FLT_EPSILON) return false;
 
@@ -832,7 +832,7 @@ bool rasterClear(SwSurface* surface)
 }
 
 
-bool rasterImage(SwSurface* surface, SwImage* image, const Matrix* transform, SwBBox& bbox, uint32_t opacity)
+bool rasterImage(SwSurface* surface, SwImage* image, const Matrix* transform, const SwBBox& bbox, uint32_t opacity)
 {
     Matrix invTransform;
 
diff --git a/src/lib/sw_engine/tvgSwRenderer.cpp b/src/lib/sw_engine/tvgSwRenderer.cpp
index 09b199b..470f1a4 100644
--- a/src/lib/sw_engine/tvgSwRenderer.cpp
+++ b/src/lib/sw_engine/tvgSwRenderer.cpp
@@ -468,7 +468,7 @@ bool SwRenderer::dispose(RenderData data)
 }
 
 
-void* SwRenderer::prepareCommon(SwTask* task, const RenderTransform* transform, uint32_t opacity, Array<RenderData>& clips, RenderUpdateFlag flags)
+void* SwRenderer::prepareCommon(SwTask* task, const RenderTransform* transform, uint32_t opacity, const Array<RenderData>& clips, RenderUpdateFlag flags)
 {
     if (flags == RenderUpdateFlag::None) return task;
 
diff --git a/src/lib/sw_engine/tvgSwRenderer.h b/src/lib/sw_engine/tvgSwRenderer.h
index e681c84..650a2de 100644
--- a/src/lib/sw_engine/tvgSwRenderer.h
+++ b/src/lib/sw_engine/tvgSwRenderer.h
@@ -63,7 +63,7 @@ private:
     SwRenderer(){};
     ~SwRenderer();
 
-    RenderData prepareCommon(SwTask* task, const RenderTransform* transform, uint32_t opacity, Array<RenderData>& clips, RenderUpdateFlag flags);
+    RenderData prepareCommon(SwTask* task, const RenderTransform* transform, uint32_t opacity, const Array<RenderData>& clips, RenderUpdateFlag flags);
 };
 
 }
diff --git a/src/lib/sw_engine/tvgSwRle.cpp b/src/lib/sw_engine/tvgSwRle.cpp
index 3255b6c..cdc6fea 100644
--- a/src/lib/sw_engine/tvgSwRle.cpp
+++ b/src/lib/sw_engine/tvgSwRle.cpp
@@ -135,7 +135,7 @@ static inline SwCoord HYPOT(SwPoint pt)
     return ((pt.x > pt.y) ? (pt.x + (3 * pt.y >> 3)) : (pt.y + (3 * pt.x >> 3)));
 }
 
-static void _genSpan(SwRleData* rle, SwSpan* spans, uint32_t count)
+static void _genSpan(SwRleData* rle, const SwSpan* spans, uint32_t count)
 {
     auto newSize = rle->size + count;
 
@@ -915,7 +915,7 @@ void rleFree(SwRleData* rle)
     free(rle);
 }
 
-void updateRleSpans(SwRleData *rle, SwSpan* curSpans, uint32_t size)
+void updateRleSpans(SwRleData *rle, const SwSpan* curSpans, uint32_t size)
 {
     if (size == 0) {
         rle->size = 0;
diff --git a/src/lib/sw_engine/tvgSwShape.cpp b/src/lib/sw_engine/tvgSwShape.cpp
index d20fc95..6a2b4f5 100644
--- a/src/lib/sw_engine/tvgSwShape.cpp
+++ b/src/lib/sw_engine/tvgSwShape.cpp
@@ -164,7 +164,7 @@ static void _initBBox(SwBBox& bbox)
 }
 
 
-static bool _updateBBox(SwOutline* outline, SwBBox& bbox)
+static bool _updateBBox(const SwOutline* outline, SwBBox& bbox)
 {
     if (!outline) return false;
 
@@ -434,7 +434,7 @@ bool shapePrepare(SwShape* shape, const Shape* sdata, unsigned tid, const SwSize
 }
 
 
-bool shapePrepared(SwShape* shape)
+bool shapePrepared(const SwShape* shape)
 {
     return shape->rle ? true : false;
 }
diff --git a/src/lib/sw_engine/tvgSwStroke.cpp b/src/lib/sw_engine/tvgSwStroke.cpp
index 96c8b95..4f46185 100644
--- a/src/lib/sw_engine/tvgSwStroke.cpp
+++ b/src/lib/sw_engine/tvgSwStroke.cpp
@@ -39,7 +39,7 @@ static inline SwFixed SIDE_TO_ROTATE(const int32_t s)
 }
 
 
-static inline void SCALE(SwStroke& stroke, SwPoint& pt)
+static inline void SCALE(const SwStroke& stroke, SwPoint& pt)
 {
     pt.x *= stroke.sx;
     pt.y *= stroke.sy;
@@ -113,7 +113,7 @@ static void _borderClose(SwStrokeBorder* border, bool reverse)
 }
 
 
-static void _borderCubicTo(SwStrokeBorder* border, SwPoint& ctrl1, SwPoint& ctrl2, SwPoint& to)
+static void _borderCubicTo(SwStrokeBorder* border, const SwPoint& ctrl1, const SwPoint& ctrl2, const SwPoint& to)
 {
     _growBorder(border, 3);
 
@@ -134,7 +134,7 @@ static void _borderCubicTo(SwStrokeBorder* border, SwPoint& ctrl1, SwPoint& ctrl
 }
 
 
-static void _borderArcTo(SwStrokeBorder* border, SwPoint& center, SwFixed radius, SwFixed angleStart, SwFixed angleDiff, SwStroke& stroke)
+static void _borderArcTo(SwStrokeBorder* border, const SwPoint& center, SwFixed radius, SwFixed angleStart, SwFixed angleDiff, SwStroke& stroke)
 {
     constexpr SwFixed ARC_CUBIC_ANGLE = SW_ANGLE_PI / 2;
     SwPoint a = {static_cast<SwCoord>(radius), 0};
@@ -187,7 +187,7 @@ static void _borderArcTo(SwStrokeBorder* border, SwPoint& center, SwFixed radius
 }
 
 
-static void _borderLineTo(SwStrokeBorder* border, SwPoint& to, bool movable)
+static void _borderLineTo(SwStrokeBorder* border, const SwPoint& to, bool movable)
 {
     if (border->movable) {
         //move last point
@@ -660,7 +660,7 @@ static void _addReverseLeft(SwStroke& stroke, bool opened)
 }
 
 
-static void _beginSubPath(SwStroke& stroke, SwPoint& to, bool opened)
+static void _beginSubPath(SwStroke& stroke, const SwPoint& to, bool opened)
 {
     /* We cannot process the first point because there is not enough
        information regarding its corner/cap. Later, it will be processed
@@ -771,7 +771,7 @@ fail:
 }
 
 
-static void _exportBorderOutline(SwStroke& stroke, SwOutline* outline, uint32_t side)
+static void _exportBorderOutline(const SwStroke& stroke, SwOutline* outline, uint32_t side)
 {
     auto border = stroke.borders + side;
 
@@ -930,4 +930,4 @@ SwOutline* strokeExportOutline(SwStroke* stroke, unsigned tid)
     _exportBorderOutline(*stroke, outline, 1);  //right
 
     return outline;
-}
\ No newline at end of file
+}
diff --git a/src/lib/tvgGlCanvas.cpp b/src/lib/tvgGlCanvas.cpp
index 416ed44..049ff7a 100644
--- a/src/lib/tvgGlCanvas.cpp
+++ b/src/lib/tvgGlCanvas.cpp
@@ -80,4 +80,4 @@ unique_ptr<GlCanvas> GlCanvas::gen() noexcept
     return unique_ptr<GlCanvas>(new GlCanvas);
 #endif
     return nullptr;
-}
\ No newline at end of file
+}
diff --git a/src/lib/tvgLoaderMgr.cpp b/src/lib/tvgLoaderMgr.cpp
index 3b8f26b..d41671c 100644
--- a/src/lib/tvgLoaderMgr.cpp
+++ b/src/lib/tvgLoaderMgr.cpp
@@ -112,7 +112,7 @@ unique_ptr<Loader> LoaderMgr::loader(const char* data, uint32_t size)
 }
 
 
-unique_ptr<Loader> LoaderMgr::loader(uint32_t *data, uint32_t w, uint32_t h, bool copy)
+unique_ptr<Loader> LoaderMgr::loader(const uint32_t *data, uint32_t w, uint32_t h, bool copy)
 {
     for (int i = 0; i < static_cast<int>(FileType::Unknown); i++) {
         auto loader = _find(static_cast<FileType>(i));
diff --git a/src/lib/tvgLoaderMgr.h b/src/lib/tvgLoaderMgr.h
index 8b26154..5d2056b 100644
--- a/src/lib/tvgLoaderMgr.h
+++ b/src/lib/tvgLoaderMgr.h
@@ -32,7 +32,7 @@ struct LoaderMgr
     static bool term();
     static unique_ptr<Loader> loader(const string& path);
     static unique_ptr<Loader> loader(const char* data, uint32_t size);
-    static unique_ptr<Loader> loader(uint32_t* data, uint32_t w, uint32_t h, bool copy);
+    static unique_ptr<Loader> loader(const uint32_t* data, uint32_t w, uint32_t h, bool copy);
 };
 
 #endif //_TVG_LOADER_MGR_H_
diff --git a/src/loaders/svg/tvgSvgLoader.cpp b/src/loaders/svg/tvgSvgLoader.cpp
index 59f10cf..4ce916f 100644
--- a/src/loaders/svg/tvgSvgLoader.cpp
+++ b/src/loaders/svg/tvgSvgLoader.cpp
@@ -79,7 +79,7 @@ static bool _parseNumber(const char** content, float* number)
  * Since this documentation is not obvious, more clean recalculation with dpi
  * is required, but for now default w3 constants would be used
  */
-static float _toFloat(SvgParser* svgParse, const char* str, SvgParserLengthType type)
+static float _toFloat(const SvgParser* svgParse, const char* str, SvgParserLengthType type)
 {
     float parsedValue = strtof(str, nullptr);
 
@@ -106,7 +106,7 @@ static float _toFloat(SvgParser* svgParse, const char* str, SvgParserLengthType
 }
 
 
-static float _gradientToFloat(SvgParser* svgParse, const char* str, SvgParserLengthType type)
+static float _gradientToFloat(const SvgParser* svgParse, const char* str, SvgParserLengthType type)
 {
     char* end = nullptr;
 
@@ -1467,7 +1467,7 @@ static SvgNode* _getDefsNode(SvgNode* node)
 }
 
 
-static SvgNode* _findChildById(SvgNode* node, const char* id)
+static SvgNode* _findChildById(const SvgNode* node, const char* id)
 {
     if (!node) return nullptr;
 
@@ -1493,7 +1493,7 @@ static SvgNode* _findNodeById(SvgNode *node, string* id)
     return result;
 }
 
-static void _cloneGradStops(Array<Fill::ColorStop*>* dst, Array<Fill::ColorStop*>* src)
+static void _cloneGradStops(Array<Fill::ColorStop*>* dst, const Array<Fill::ColorStop*>* src)
 {
     for (uint32_t i = 0; i < src->count; ++i) {
         auto stop = static_cast<Fill::ColorStop *>(malloc(sizeof(Fill::ColorStop)));
@@ -1543,7 +1543,7 @@ error_grad_alloc:
 }
 
 
-static void _copyAttr(SvgNode* to, SvgNode* from)
+static void _copyAttr(SvgNode* to, const SvgNode* from)
 {
     //Copy matrix attribute
     if (from->transform) {
@@ -2226,7 +2226,7 @@ static bool _svgLoaderParser(void* data, SimpleXMLType type, const char* content
 }
 
 
-static void _styleInherit(SvgStyleProperty* child, SvgStyleProperty* parent)
+static void _styleInherit(SvgStyleProperty* child, const SvgStyleProperty* parent)
 {
     if (parent == nullptr) return;
     //Inherit the property of parent if not present in child.
@@ -2329,7 +2329,7 @@ static void _updateStyle(SvgNode* node, SvgStyleProperty* parentStyle)
 }
 
 
-static SvgStyleGradient* _gradientDup(Array<SvgStyleGradient*>* gradients, string* id)
+static SvgStyleGradient* _gradientDup(Array<SvgStyleGradient*>* gradients, const string* id)
 {
     SvgStyleGradient* result = nullptr;
 
diff --git a/src/loaders/svg/tvgSvgSceneBuilder.cpp b/src/loaders/svg/tvgSvgSceneBuilder.cpp
index 0558584..096730b 100644
--- a/src/loaders/svg/tvgSvgSceneBuilder.cpp
+++ b/src/loaders/svg/tvgSvgSceneBuilder.cpp
@@ -32,7 +32,7 @@ bool _isGroupType(SvgNodeType type)
     return false;
 }
 
-unique_ptr<LinearGradient> _applyLinearGradientProperty(SvgStyleGradient* g, Shape* vg, float rx, float ry, float rw, float rh)
+unique_ptr<LinearGradient> _applyLinearGradientProperty(SvgStyleGradient* g, const Shape* vg, float rx, float ry, float rw, float rh)
 {
     Fill::ColorStop* stops;
     int stopCount = 0;
@@ -114,7 +114,7 @@ unique_ptr<LinearGradient> _applyLinearGradientProperty(SvgStyleGradient* g, Sha
 }
 
 
-unique_ptr<RadialGradient> _applyRadialGradientProperty(SvgStyleGradient* g, Shape* vg, float rx, float ry, float rw, float rh)
+unique_ptr<RadialGradient> _applyRadialGradientProperty(SvgStyleGradient* g, const Shape* vg, float rx, float ry, float rw, float rh)
 {
     Fill::ColorStop *stops;
     int stopCount = 0;
@@ -339,7 +339,7 @@ bool _appendShape(SvgNode* node, Shape* shape, float vx, float vy, float vw, flo
     return true;
 }
 
-unique_ptr<Scene> _sceneBuildHelper(SvgNode* node, float vx, float vy, float vw, float vh)
+unique_ptr<Scene> _sceneBuildHelper(const SvgNode* node, float vx, float vy, float vw, float vh)
 {
     if (_isGroupType(node->type)) {
         auto scene = Scene::gen();