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https://github.com/thorvg/thorvg.git
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sw_engine: implement linear gradient feature
also added testLinearGradient Change-Id: I9cce74b9fc40c4ebd978939ee50955e44e7f44f2
This commit is contained in:
Hermet Park
parent
f3afd2a636
commit
5c988d01a5
16 changed files with 544 additions and 150 deletions
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@ -51,14 +51,10 @@ protected: \
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#define _TVG_DECLARE_ACCESSOR(A) \
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friend A
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#define _TVG_DECLARE_ACCESSORS(A, B) \
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friend A; \
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friend B
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#define _TVG_DECALRE_IDENTIFIER() \
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auto id() const { return _id; } \
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protected: \
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unsigned id
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unsigned _id
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namespace tvg
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{
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@ -101,7 +97,6 @@ public:
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virtual Result bounds(float* x, float* y, float* w, float* h) const = 0;
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_TVG_DECALRE_IDENTIFIER();
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_TVG_DECLARE_ACCESSORS(Canvas, Scene);
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};
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@ -264,7 +259,8 @@ public:
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static std::unique_ptr<Shape> gen() noexcept;
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_TVG_DECLARE_PRIVATE(Shape);
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_TVG_DECLARE_ACCESSORS(Canvas, Scene);
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_TVG_DECLARE_ACCESSOR(Canvas);
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_TVG_DECLARE_ACCESSOR(Scene);
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};
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@ -1,5 +1,6 @@
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source_file = [
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'tvgSwCommon.h',
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'tvgSwFill.cpp',
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'tvgSwMath.cpp',
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'tvgSwRenderer.h',
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'tvgSwRaster.cpp',
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@ -21,11 +21,14 @@
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using namespace tvg;
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constexpr auto SW_CURVE_TYPE_POINT = 0;
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constexpr auto SW_CURVE_TYPE_CUBIC = 1;
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constexpr auto SW_OUTLINE_FILL_WINDING = 0;
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constexpr auto SW_OUTLINE_FILL_EVEN_ODD = 1;
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#define SW_CURVE_TYPE_POINT 0
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#define SW_CURVE_TYPE_CUBIC 1
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#define SW_OUTLINE_FILL_WINDING 0
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#define SW_OUTLINE_FILL_EVEN_ODD 1
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#define SW_ANGLE_PI (180L << 16)
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#define SW_ANGLE_2PI (SW_ANGLE_PI << 1)
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#define SW_ANGLE_PI2 (SW_ANGLE_PI >> 1)
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#define SW_ANGLE_PI4 (SW_ANGLE_PI >> 2)
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using SwCoord = signed long;
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using SwFixed = signed long long;
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@ -153,22 +156,28 @@ struct SwDashStroke
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bool curOpGap;
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};
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struct SwFill
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{
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uint32_t* ctable;
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float x1, y1, x2, y2;
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float dx, dy;
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float len;
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float offset;
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FillSpread spread;
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bool translucent;
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};
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struct SwShape
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{
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SwOutline* outline;
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SwStroke* stroke;
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SwFill* fill;
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SwRleData* rle;
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SwRleData* strokeRle;
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SwBBox bbox;
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};
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constexpr static SwFixed ANGLE_PI = (180L << 16);
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constexpr static SwFixed ANGLE_2PI = (ANGLE_PI << 1);
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constexpr static SwFixed ANGLE_PI2 = (ANGLE_PI >> 1);
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constexpr static SwFixed ANGLE_PI4 = (ANGLE_PI >> 2);
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static inline SwPoint TO_SWPOINT(const Point* pt)
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{
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return {SwCoord(pt->x * 64), SwCoord(pt->y * 64)};
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@ -181,6 +190,33 @@ static inline SwCoord TO_SWCOORD(float val)
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}
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static inline uint32_t COLOR_ALPHA(uint32_t rgba)
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{
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return (rgba >> 24) & 0xff;
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}
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static inline uint32_t COLOR_ALPHA_BLEND(uint32_t rgba, uint32_t alpha)
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{
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return (((((rgba >> 8) & 0x00ff00ff) * alpha) & 0xff00ff00) +
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((((rgba & 0x00ff00ff) * alpha) >> 8) & 0x00ff00ff));
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}
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static inline uint32_t COLOR_INTERPOLATE(uint32_t rgba1, uint32_t a, uint32_t rgba2, uint32_t b)
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{
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auto t = (((rgba1 & 0xff00ff) * a + (rgba2 & 0xff00ff) * b) >> 8) & 0xff00ff;
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rgba1 = (((rgba1 >> 8) & 0xff00ff) * a + ((rgba2 >> 8) & 0xff00ff) * b) & 0xff00ff00;
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return (rgba1 |= t);
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}
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static inline uint32_t COLOR_ARGB_JOIN(uint8_t r, uint8_t g, uint8_t b, uint8_t a)
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{
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return (a << 24 | r << 16 | g << 8 | b);
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}
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int64_t mathMultiply(int64_t a, int64_t b);
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int64_t mathDivide(int64_t a, int64_t b);
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int64_t mathMulDiv(int64_t a, int64_t b, int64_t c);
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@ -202,16 +238,26 @@ void shapeDelOutline(SwShape& shape);
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void shapeResetStroke(SwShape& shape, const Shape& sdata);
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bool shapeGenStrokeRle(SwShape& shape, const Shape& sdata, const SwSize& clip);
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void shapeFree(SwShape* shape);
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void shapeDelStroke(SwShape& shape);
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bool shapeGenFillColors(SwShape& shape, const Fill* fill);
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void shapeResetFill(SwShape& shape, const Fill* fill);
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void shapeDelFill(SwShape& shape);
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void strokeReset(SwStroke& stroke, const Shape& shape);
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bool strokeParseOutline(SwStroke& stroke, const SwOutline& outline);
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SwOutline* strokeExportOutline(SwStroke& stroke);
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void strokeFree(SwStroke* stroke);
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bool fillGenColorTable(SwFill* fill, const Fill* fdata);
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void fillReset(SwFill* fill, const Fill* fdata);
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void fillFree(SwFill* fill);
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void fillFetch(const SwFill* fill, uint32_t* dst, uint32_t y, uint32_t x, uint32_t len);
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SwRleData* rleRender(const SwOutline* outline, const SwBBox& bbox, const SwSize& clip);
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void rleFree(SwRleData* rle);
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bool rasterShape(Surface& surface, SwShape& sdata, uint8_t r, uint8_t g, uint8_t b, uint8_t a);
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bool rasterStroke(Surface& surface, SwShape& sdata, uint8_t r, uint8_t g, uint8_t b, uint8_t a);
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bool rasterGradientShape(Surface& surface, SwShape& shape);
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bool rasterSolidShape(Surface& surface, SwShape& shape, uint8_t r, uint8_t g, uint8_t b, uint8_t a);
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bool rasterStroke(Surface& surface, SwShape& shape, uint8_t r, uint8_t g, uint8_t b, uint8_t a);
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#endif /* _TVG_SW_COMMON_H_ */
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262
src/lib/sw_engine/tvgSwFill.cpp
Normal file
262
src/lib/sw_engine/tvgSwFill.cpp
Normal file
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@ -0,0 +1,262 @@
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/*
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* Copyright (c) 2020 Samsung Electronics Co., Ltd All Rights Reserved
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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#ifndef _TVG_SW_FILL_CPP_
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#define _TVG_SW_FILL_CPP_
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#include "tvgSwCommon.h"
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/************************************************************************/
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/* Internal Class Implementation */
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/************************************************************************/
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#define GRADIENT_STOP_SIZE 1024
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#define FIXPT_BITS 8
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#define FIXPT_SIZE (1<<FIXPT_BITS)
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static bool _updateColorTable(SwFill* fill, const LinearGradient* linear)
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{
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assert(fill && linear);
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if (!fill->ctable) {
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fill->ctable = static_cast<uint32_t*>(malloc(GRADIENT_STOP_SIZE * sizeof(uint32_t)));
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assert(fill->ctable);
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}
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const Fill::ColorStop* colors;
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auto cnt = linear->colorStops(&colors);
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if (cnt == 0 || !colors) return false;
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auto pColors = colors;
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if (pColors->a < 255) fill->translucent = true;
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auto rgba = COLOR_ARGB_JOIN(pColors->r, pColors->g, pColors->b, pColors->a);
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auto inc = 1.0f / static_cast<float>(GRADIENT_STOP_SIZE);
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auto pos = 1.5f * inc;
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uint32_t i = 0;
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fill->ctable[i++] = rgba;
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while (pos <= pColors->offset) {
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fill->ctable[i] = fill->ctable[i - 1];
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++i;
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pos += inc;
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}
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for (uint32_t j = 0; j < cnt - 1; ++j) {
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auto curr = colors + j;
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auto next = curr + 1;
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assert(curr && next);
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auto delta = 1.0f / (next->offset - curr->offset);
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if (next->a < 255) fill->translucent = true;
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auto rgba2 = COLOR_ARGB_JOIN(next->r, next->g, next->b, next->a);
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while (pos < next->offset && i < GRADIENT_STOP_SIZE) {
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auto t = (pos - curr->offset) * delta;
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auto dist = static_cast<int32_t>(256 * t);
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auto dist2 = 256 - dist;
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fill->ctable[i] = COLOR_INTERPOLATE(rgba, dist2, rgba2, dist);
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++i;
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pos += inc;
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}
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rgba = rgba2;
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}
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for (; i < GRADIENT_STOP_SIZE; ++i)
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fill->ctable[i] = rgba;
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//Make sure the lat color stop is represented at the end of the table
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fill->ctable[GRADIENT_STOP_SIZE - 1] = rgba;
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return true;
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}
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bool _prepareLinear(SwFill* fill, const LinearGradient* linear)
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{
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assert(fill && linear);
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if (linear->linear(&fill->x1, &fill->y1, &fill->x2, &fill->y2) != Result::Success) return false;
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fill->dx = fill->x2 - fill->x1;
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fill->dy = fill->y2 - fill->y1;
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fill->len = fill->dx * fill->dx + fill->dy * fill->dy;
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fill->offset = 0;
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if (fill->len < FLT_EPSILON) return true;
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fill->dx /= fill->len;
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fill->dy /= fill->len;
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fill->offset = -fill->dx * fill->x1 - fill->dy * fill->y1;
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return _updateColorTable(fill, linear);
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}
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bool _prepareRadial(SwFill* fill, const RadialGradient* radial)
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{
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assert(fill && radial);
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return true;
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}
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static inline uint32_t _clamp(const SwFill* fill, uint32_t pos)
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{
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switch (fill->spread) {
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case FillSpread::Pad: {
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if (pos >= GRADIENT_STOP_SIZE) pos = GRADIENT_STOP_SIZE - 1;
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break;
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}
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case FillSpread::Repeat: {
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pos = pos % GRADIENT_STOP_SIZE;
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break;
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}
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case FillSpread::Reflect: {
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auto limit = GRADIENT_STOP_SIZE * 2;
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pos = pos % limit;
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if (pos >= GRADIENT_STOP_SIZE) pos = (limit - pos - 1);
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break;
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}
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}
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return pos;
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}
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static inline uint32_t _fixedPixel(const SwFill* fill, uint32_t pos)
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{
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auto i = (pos + (FIXPT_SIZE / 2)) >> FIXPT_BITS;
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return fill->ctable[_clamp(fill, i)];
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}
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static inline uint32_t _pixel(const SwFill* fill, float pos)
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{
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auto i = static_cast<uint32_t>(pos * (GRADIENT_STOP_SIZE - 1) + 0.5f);
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return fill->ctable[_clamp(fill, i)];
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}
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static inline void _write(uint32_t *dst, uint32_t val, uint32_t len)
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{
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if (len <= 0) return;
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// Cute hack to align future memcopy operation
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// and do unroll the loop a bit. Not sure it is
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// the most efficient, but will do for now.
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auto n = (len + 7) / 8;
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switch (len & 0x07) {
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case 0: do { *dst++ = val;
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case 7: *dst++ = val;
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case 6: *dst++ = val;
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case 5: *dst++ = val;
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case 4: *dst++ = val;
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case 3: *dst++ = val;
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case 2: *dst++ = val;
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case 1: *dst++ = val;
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} while (--n > 0);
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}
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}
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/************************************************************************/
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/* External Class Implementation */
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/************************************************************************/
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void fillFetch(const SwFill* fill, uint32_t* dst, uint32_t y, uint32_t x, uint32_t len)
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{
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assert(fill->len > 0);
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//TODO: Rotation???
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auto rx = x + 0.5f;
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auto ry = y + 0.5f;
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auto t = (fill->dx * rx + fill->dy * ry + fill->offset) * (GRADIENT_STOP_SIZE - 1);
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auto inc = (fill->dx) * (GRADIENT_STOP_SIZE - 1);
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if (fabsf(inc) < FLT_EPSILON) {
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auto color = _fixedPixel(fill, static_cast<uint32_t>(t * FIXPT_SIZE));
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_write(dst, color, len);
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return;
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}
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auto vMax = static_cast<float>(INT32_MAX >> (FIXPT_BITS + 1));
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auto vMin = -vMax;
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auto v = t + (inc * len);
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//we can use fixed point math
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if (v < vMax && v > vMin) {
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auto t2 = static_cast<uint32_t>(t * FIXPT_SIZE);
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auto inc2 = static_cast<uint32_t>(inc * FIXPT_SIZE);
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for (uint32_t j = 0; j < len; ++j) {
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*dst = _fixedPixel(fill, t2);
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++dst;
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t2 += inc2;
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}
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//we have to fallback to float math
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} else {
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while (dst < dst + len) {
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*dst = _pixel(fill, t / GRADIENT_STOP_SIZE);
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++dst;
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t += inc;
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}
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}
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}
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bool fillGenColorTable(SwFill* fill, const Fill* fdata)
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{
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if (!fill) return false;
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assert(fdata);
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fill->spread = fdata->spread();
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if (fdata->id() == FILL_ID_LINEAR) {
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return _prepareLinear(fill, static_cast<const LinearGradient*>(fdata));
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} else if (fdata->id() == FILL_ID_RADIAL) {
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return _prepareRadial(fill, static_cast<const RadialGradient*>(fdata));
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}
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cout << "What type of gradient?!" << endl;
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return false;
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}
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void fillReset(SwFill* fill, const Fill* fdata)
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{
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if (fill->ctable) {
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free(fill->ctable);
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fill->ctable = nullptr;
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}
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fill->translucent = false;
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}
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void fillFree(SwFill* fill)
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{
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if (!fill) return;
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if (fill->ctable) free(fill->ctable);
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free(fill);
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}
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#endif /* _TVG_SW_FILL_CPP_ */
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@ -93,15 +93,15 @@ static void _polarize(SwPoint& pt)
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auto tmp = v.y;
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v.y = -v.x;
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v.x = tmp;
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theta = ANGLE_PI2;
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theta = SW_ANGLE_PI2;
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} else {
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theta = v.y > 0 ? ANGLE_PI : -ANGLE_PI;
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theta = v.y > 0 ? SW_ANGLE_PI : -SW_ANGLE_PI;
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v.x = -v.x;
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v.y = -v.y;
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}
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} else {
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if (v.y < -v.x) {
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theta = -ANGLE_PI2;
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theta = -SW_ANGLE_PI2;
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auto tmp = -v.y;
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v.y = v.x;
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v.x = tmp;
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@ -144,18 +144,18 @@ static void _rotate(SwPoint& pt, SwFixed theta)
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SwFixed y = pt.y;
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//Rotate inside [-PI/4, PI/4] sector
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while (theta < -ANGLE_PI4) {
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while (theta < -SW_ANGLE_PI4) {
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auto tmp = y;
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y = -x;
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x = tmp;
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theta += ANGLE_PI2;
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theta += SW_ANGLE_PI2;
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}
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while (theta > ANGLE_PI4) {
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while (theta > SW_ANGLE_PI4) {
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auto tmp = -y;
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y = x;
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x = tmp;
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theta -= ANGLE_PI2;
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theta -= SW_ANGLE_PI2;
|
||||
}
|
||||
|
||||
auto atan = ATAN_TBL;
|
||||
|
|
@ -236,7 +236,7 @@ bool mathSmallCubic(SwPoint* base, SwFixed& angleIn, SwFixed& angleMid, SwFixed&
|
|||
auto theta1 = abs(mathDiff(angleIn, angleMid));
|
||||
auto theta2 = abs(mathDiff(angleMid, angleOut));
|
||||
|
||||
if ((theta1 < (ANGLE_PI / 8)) && (theta2 < (ANGLE_PI / 8))) return true;
|
||||
if ((theta1 < (SW_ANGLE_PI / 8)) && (theta2 < (SW_ANGLE_PI / 8))) return true;
|
||||
else return false;
|
||||
}
|
||||
|
||||
|
|
@ -346,7 +346,7 @@ SwFixed mathAtan(const SwPoint& pt)
|
|||
|
||||
SwFixed mathSin(SwFixed angle)
|
||||
{
|
||||
return mathCos(ANGLE_PI2 - angle);
|
||||
return mathCos(SW_ANGLE_PI2 - angle);
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -408,9 +408,9 @@ SwFixed mathDiff(SwFixed angle1, SwFixed angle2)
|
|||
{
|
||||
auto delta = angle2 - angle1;
|
||||
|
||||
delta %= ANGLE_2PI;
|
||||
if (delta < 0) delta += ANGLE_2PI;
|
||||
if (delta > ANGLE_PI) delta -= ANGLE_2PI;
|
||||
delta %= SW_ANGLE_2PI;
|
||||
if (delta < 0) delta += SW_ANGLE_2PI;
|
||||
if (delta > SW_ANGLE_PI) delta -= SW_ANGLE_2PI;
|
||||
|
||||
return delta;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -24,60 +24,28 @@
|
|||
/* Internal Class Implementation */
|
||||
/************************************************************************/
|
||||
|
||||
static inline uint32_t COLOR_ALPHA(uint32_t color)
|
||||
static bool _rasterTranslucentRle(Surface& surface, SwRleData* rle, uint32_t color)
|
||||
{
|
||||
return (color >> 24) & 0xff;
|
||||
}
|
||||
if (!rle) return false;
|
||||
|
||||
auto span = rle->spans;
|
||||
auto stride = surface.stride;
|
||||
uint32_t tmp;
|
||||
|
||||
static inline uint32_t COLOR_ALPHA_BLEND(uint32_t color, uint32_t alpha)
|
||||
{
|
||||
return (((((color >> 8) & 0x00ff00ff) * alpha) & 0xff00ff00) +
|
||||
((((color & 0x00ff00ff) * alpha) >> 8) & 0x00ff00ff));
|
||||
}
|
||||
|
||||
|
||||
static inline uint32_t COLOR_ARGB_JOIN(uint8_t r, uint8_t g, uint8_t b, uint8_t a)
|
||||
{
|
||||
return (a << 24 | r << 16 | g << 8 | b);
|
||||
}
|
||||
|
||||
|
||||
static void
|
||||
_rasterTranslucent(uint32_t* dst, uint32_t len, uint32_t color, uint32_t cov)
|
||||
{
|
||||
//OPTIMIZE ME: SIMD
|
||||
|
||||
if (cov < 255) color = COLOR_ALPHA_BLEND(color, cov);
|
||||
auto ialpha = 255 - COLOR_ALPHA(color);
|
||||
|
||||
for (uint32_t i = 0; i < len; ++i) {
|
||||
dst[i] = color + COLOR_ALPHA_BLEND(dst[i], ialpha);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static void
|
||||
_rasterSolid(uint32_t* dst, uint32_t len, uint32_t color, uint32_t cov)
|
||||
{
|
||||
//OPTIMIZE ME: SIMD
|
||||
|
||||
//Fully Opaque
|
||||
if (cov == 255) {
|
||||
for (uint32_t i = 0; i < len; ++i) {
|
||||
dst[i] = color;
|
||||
for (uint32_t i = 0; i < rle->size; ++i) {
|
||||
auto dst = &surface.buffer[span->y * stride + span->x];
|
||||
if (span->coverage < 255) tmp = COLOR_ALPHA_BLEND(color, span->coverage);
|
||||
else tmp = color;
|
||||
for (uint32_t i = 0; i < span->len; ++i) {
|
||||
dst[i] = tmp + COLOR_ALPHA_BLEND(dst[i], 255 - COLOR_ALPHA(tmp));
|
||||
}
|
||||
++span;
|
||||
}
|
||||
} else {
|
||||
auto ialpha = 255 - cov;
|
||||
for (uint32_t i = 0; i < len; ++i) {
|
||||
dst[i] = COLOR_ALPHA_BLEND(color, cov) + COLOR_ALPHA_BLEND(dst[i], ialpha);
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
static bool
|
||||
_rasterRle(Surface& surface, SwRleData* rle, uint32_t color, uint8_t a)
|
||||
static bool _rasterSolidRle(Surface& surface, SwRleData* rle, uint32_t color)
|
||||
{
|
||||
if (!rle) return false;
|
||||
|
||||
|
|
@ -85,16 +53,66 @@ _rasterRle(Surface& surface, SwRleData* rle, uint32_t color, uint8_t a)
|
|||
auto stride = surface.stride;
|
||||
|
||||
for (uint32_t i = 0; i < rle->size; ++i) {
|
||||
assert(span);
|
||||
|
||||
auto dst = &surface.buffer[span->y * stride + span->x];
|
||||
|
||||
if (a == 255) _rasterSolid(dst, span->len, color, span->coverage);
|
||||
else _rasterTranslucent(dst, span->len, color, span->coverage);
|
||||
|
||||
if (span->coverage == 255) {
|
||||
for (uint32_t i = 0; i < span->len; ++i) {
|
||||
dst[i] = color;
|
||||
}
|
||||
} else {
|
||||
for (uint32_t i = 0; i < span->len; ++i) {
|
||||
dst[i] = COLOR_ALPHA_BLEND(color, span->coverage) + COLOR_ALPHA_BLEND(dst[i], 255 - span->coverage);
|
||||
}
|
||||
}
|
||||
++span;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
static bool _rasterGradientRle(Surface& surface, SwRleData* rle, const SwFill* fill)
|
||||
{
|
||||
if (!rle || !fill) return false;
|
||||
|
||||
auto buf = static_cast<uint32_t*>(alloca(surface.w * sizeof(uint32_t)));
|
||||
if (!buf) return false;
|
||||
|
||||
auto span = rle->spans;
|
||||
auto stride = surface.stride;
|
||||
|
||||
//Translucent Gradient
|
||||
if (fill->translucent) {
|
||||
uint32_t tmp;
|
||||
for (uint32_t i = 0; i < rle->size; ++i) {
|
||||
auto dst = &surface.buffer[span->y * stride + span->x];
|
||||
fillFetch(fill, buf, span->y, span->x, span->len);
|
||||
if (span->coverage == 255) {
|
||||
for (uint32_t i = 0; i < span->len; ++i) {
|
||||
dst[i] = buf[i] + COLOR_ALPHA_BLEND(dst[i], 255 - COLOR_ALPHA(buf[i]));
|
||||
}
|
||||
} else {
|
||||
for (uint32_t i = 0; i < span->len; ++i) {
|
||||
tmp = COLOR_ALPHA_BLEND(buf[i], span->coverage);
|
||||
dst[i] = tmp + COLOR_ALPHA_BLEND(dst[i], 255 - COLOR_ALPHA(tmp));
|
||||
}
|
||||
}
|
||||
++span;
|
||||
}
|
||||
//Opaque Gradient
|
||||
} else {
|
||||
for (uint32_t i = 0; i < rle->size; ++i) {
|
||||
auto dst = &surface.buffer[span->y * stride + span->x];
|
||||
if (span->coverage == 255) {
|
||||
fillFetch(fill, dst, span->y, span->x, span->len);
|
||||
} else {
|
||||
fillFetch(fill, buf, span->y, span->x, span->len);
|
||||
auto ialpha = 255 - span->coverage;
|
||||
for (uint32_t i = 0; i < span->len; ++i) {
|
||||
dst[i] = COLOR_ALPHA_BLEND(buf[i], span->coverage) + COLOR_ALPHA_BLEND(dst[i], ialpha);
|
||||
}
|
||||
}
|
||||
++span;
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
|
|
@ -103,15 +121,23 @@ _rasterRle(Surface& surface, SwRleData* rle, uint32_t color, uint8_t a)
|
|||
/* External Class Implementation */
|
||||
/************************************************************************/
|
||||
|
||||
bool rasterShape(Surface& surface, SwShape& sdata, uint8_t r, uint8_t g, uint8_t b, uint8_t a)
|
||||
bool rasterGradientShape(Surface& surface, SwShape& shape)
|
||||
{
|
||||
return _rasterRle(surface, sdata.rle, COLOR_ARGB_JOIN(r, g, b, a), a);
|
||||
return _rasterGradientRle(surface, shape.rle, shape.fill);
|
||||
}
|
||||
|
||||
|
||||
bool rasterStroke(Surface& surface, SwShape& sdata, uint8_t r, uint8_t g, uint8_t b, uint8_t a)
|
||||
bool rasterSolidShape(Surface& surface, SwShape& shape, uint8_t r, uint8_t g, uint8_t b, uint8_t a)
|
||||
{
|
||||
return _rasterRle(surface, sdata.strokeRle, COLOR_ARGB_JOIN(r, g, b, a), a);
|
||||
if (a == 255) return _rasterSolidRle(surface, shape.rle, COLOR_ARGB_JOIN(r, g, b, a));
|
||||
return _rasterTranslucentRle(surface, shape.rle, COLOR_ARGB_JOIN(r, g, b, a));
|
||||
}
|
||||
|
||||
|
||||
bool rasterStroke(Surface& surface, SwShape& shape, uint8_t r, uint8_t g, uint8_t b, uint8_t a)
|
||||
{
|
||||
if (a == 255) return _rasterSolidRle(surface, shape.strokeRle, COLOR_ARGB_JOIN(r, g, b, a));
|
||||
return _rasterTranslucentRle(surface, shape.strokeRle, COLOR_ARGB_JOIN(r, g, b, a));
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -57,28 +57,32 @@ bool SwRenderer::target(uint32_t* buffer, uint32_t stride, uint32_t w, uint32_t
|
|||
return true;
|
||||
}
|
||||
|
||||
bool SwRenderer::render(const Shape& shape, void *data)
|
||||
bool SwRenderer::render(const Shape& sdata, void *data)
|
||||
{
|
||||
SwShape* sdata = static_cast<SwShape*>(data);
|
||||
if (!sdata) return false;
|
||||
SwShape* shape = static_cast<SwShape*>(data);
|
||||
if (!shape) return false;
|
||||
|
||||
uint8_t r, g, b, a;
|
||||
|
||||
shape.fill(&r, &g, &b, &a);
|
||||
if (a > 0) rasterShape(surface, *sdata, r, g, b, a);
|
||||
if (sdata.fill()) {
|
||||
rasterGradientShape(surface, *shape);
|
||||
} else {
|
||||
sdata.fill(&r, &g, &b, &a);
|
||||
if (a > 0) rasterSolidShape(surface, *shape, r, g, b, a);
|
||||
}
|
||||
|
||||
shape.strokeColor(&r, &g, &b, &a);
|
||||
if (a > 0) rasterStroke(surface, *sdata, r, g, b, a);
|
||||
sdata.strokeColor(&r, &g, &b, &a);
|
||||
if (a > 0) rasterStroke(surface, *shape, r, g, b, a);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
bool SwRenderer::dispose(const Shape& shape, void *data)
|
||||
bool SwRenderer::dispose(const Shape& sdata, void *data)
|
||||
{
|
||||
auto sdata = static_cast<SwShape*>(data);
|
||||
if (!sdata) return true;
|
||||
shapeFree(sdata);
|
||||
auto shape = static_cast<SwShape*>(data);
|
||||
if (!shape) return true;
|
||||
shapeFree(shape);
|
||||
return true;
|
||||
}
|
||||
|
||||
|
|
@ -103,11 +107,22 @@ void* SwRenderer::prepare(const Shape& sdata, void* data, const RenderTransform*
|
|||
shapeReset(*shape);
|
||||
uint8_t alpha = 0;
|
||||
sdata.fill(nullptr, nullptr, nullptr, &alpha);
|
||||
if (alpha > 0) {
|
||||
if (alpha > 0 || sdata.fill()) {
|
||||
if (!shapeGenRle(*shape, sdata, clip, transform)) return shape;
|
||||
}
|
||||
}
|
||||
|
||||
//Fill
|
||||
if (flags & (RenderUpdateFlag::Gradient)) {
|
||||
auto fill = sdata.fill();
|
||||
if (fill) {
|
||||
shapeResetFill(*shape, fill);
|
||||
if (!shapeGenFillColors(*shape, fill)) return shape;
|
||||
} else {
|
||||
shapeDelFill(*shape);
|
||||
}
|
||||
}
|
||||
|
||||
//Stroke
|
||||
if (flags & (RenderUpdateFlag::Stroke | RenderUpdateFlag::Transform)) {
|
||||
if (sdata.strokeWidth() > 0.5) {
|
||||
|
|
@ -117,6 +132,8 @@ void* SwRenderer::prepare(const Shape& sdata, void* data, const RenderTransform*
|
|||
if (alpha > 0) {
|
||||
if (!shapeGenStrokeRle(*shape, sdata, clip)) return shape;
|
||||
}
|
||||
} else {
|
||||
shapeDelStroke(*shape);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -666,19 +666,29 @@ bool shapeGenOutline(SwShape& shape, const Shape& sdata)
|
|||
}
|
||||
|
||||
|
||||
void shapeFree(SwShape* sdata)
|
||||
void shapeFree(SwShape* shape)
|
||||
{
|
||||
assert(sdata);
|
||||
assert(shape);
|
||||
|
||||
shapeDelOutline(*sdata);
|
||||
rleFree(sdata->rle);
|
||||
shapeDelOutline(*shape);
|
||||
rleFree(shape->rle);
|
||||
|
||||
if (sdata->stroke) {
|
||||
rleFree(sdata->strokeRle);
|
||||
strokeFree(sdata->stroke);
|
||||
if (shape->stroke) {
|
||||
rleFree(shape->strokeRle);
|
||||
strokeFree(shape->stroke);
|
||||
}
|
||||
|
||||
free(sdata);
|
||||
free(shape);
|
||||
}
|
||||
|
||||
|
||||
void shapeDelStroke(SwShape& shape)
|
||||
{
|
||||
if (!shape.stroke) return;
|
||||
rleFree(shape.strokeRle);
|
||||
shape.strokeRle = nullptr;
|
||||
strokeFree(shape.stroke);
|
||||
shape.stroke = nullptr;
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -730,4 +740,32 @@ bool shapeGenStrokeRle(SwShape& shape, const Shape& sdata, const SwSize& clip)
|
|||
}
|
||||
|
||||
|
||||
bool shapeGenFillColors(SwShape& shape, const Fill* fill)
|
||||
{
|
||||
assert(fill);
|
||||
|
||||
fillGenColorTable(shape.fill, fill);
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
void shapeResetFill(SwShape& shape, const Fill* fill)
|
||||
{
|
||||
assert(fill);
|
||||
|
||||
if (!shape.fill) shape.fill = static_cast<SwFill*>(calloc(1, sizeof(SwFill)));
|
||||
assert(shape.fill);
|
||||
|
||||
fillReset(shape.fill, fill);
|
||||
}
|
||||
|
||||
|
||||
void shapeDelFill(SwShape& shape)
|
||||
{
|
||||
if (!shape.fill) return;
|
||||
fillFree(shape.fill);
|
||||
shape.fill = nullptr;
|
||||
}
|
||||
|
||||
|
||||
#endif /* _TVG_SW_SHAPE_H_ */
|
||||
|
|
|
|||
|
|
@ -30,7 +30,7 @@ static constexpr auto SW_STROKE_TAG_END = 8;
|
|||
|
||||
static inline SwFixed SIDE_TO_ROTATE(const int32_t s)
|
||||
{
|
||||
return (ANGLE_PI2 - (s) * ANGLE_PI);
|
||||
return (SW_ANGLE_PI2 - (s) * SW_ANGLE_PI);
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -134,14 +134,14 @@ static void _borderCubicTo(SwStrokeBorder* border, SwPoint& ctrl1, SwPoint& ctrl
|
|||
|
||||
static void _borderArcTo(SwStrokeBorder* border, SwPoint& center, SwFixed radius, SwFixed angleStart, SwFixed angleDiff)
|
||||
{
|
||||
constexpr SwFixed ARC_CUBIC_ANGLE = ANGLE_PI / 2;
|
||||
constexpr SwFixed ARC_CUBIC_ANGLE = SW_ANGLE_PI / 2;
|
||||
SwPoint a = {radius, 0};
|
||||
mathRotate(a, angleStart);
|
||||
a += center;
|
||||
|
||||
auto total = angleDiff;
|
||||
auto angle = angleStart;
|
||||
auto rotate = (angleDiff >= 0) ? ANGLE_PI2 : -ANGLE_PI2;
|
||||
auto rotate = (angleDiff >= 0) ? SW_ANGLE_PI2 : -SW_ANGLE_PI2;
|
||||
|
||||
while (total != 0) {
|
||||
auto step = total;
|
||||
|
|
@ -222,7 +222,7 @@ static void _arcTo(SwStroke& stroke, int32_t side)
|
|||
auto border = stroke.borders + side;
|
||||
auto rotate = SIDE_TO_ROTATE(side);
|
||||
auto total = mathDiff(stroke.angleIn, stroke.angleOut);
|
||||
if (total == ANGLE_PI) total = -rotate * 2;
|
||||
if (total == SW_ANGLE_PI) total = -rotate * 2;
|
||||
|
||||
_borderArcTo(border, stroke.center, stroke.width, stroke.angleIn + rotate, total);
|
||||
border->movable = false;
|
||||
|
|
@ -249,7 +249,7 @@ static void _outside(SwStroke& stroke, int32_t side, SwFixed lineLength)
|
|||
|
||||
if (!bevel) {
|
||||
auto theta = mathDiff(stroke.angleIn, stroke.angleOut);
|
||||
if (theta == ANGLE_PI) {
|
||||
if (theta == SW_ANGLE_PI) {
|
||||
theta = rotate;
|
||||
phi = stroke.angleIn;
|
||||
} else {
|
||||
|
|
@ -354,7 +354,7 @@ void _processCorner(SwStroke& stroke, SwFixed lineLength)
|
|||
void _firstSubPath(SwStroke& stroke, SwFixed startAngle, SwFixed lineLength)
|
||||
{
|
||||
SwPoint delta = {stroke.width, 0};
|
||||
mathRotate(delta, startAngle + ANGLE_PI2);
|
||||
mathRotate(delta, startAngle + SW_ANGLE_PI2);
|
||||
|
||||
auto pt = stroke.center + delta;
|
||||
auto border = stroke.borders;
|
||||
|
|
@ -384,7 +384,7 @@ static void _lineTo(SwStroke& stroke, const SwPoint& to)
|
|||
auto angle = mathAtan(delta);
|
||||
|
||||
delta = {stroke.width, 0};
|
||||
mathRotate(delta, angle + ANGLE_PI2);
|
||||
mathRotate(delta, angle + SW_ANGLE_PI2);
|
||||
|
||||
//process corner if necessary
|
||||
if (stroke.firstPt) {
|
||||
|
|
@ -460,7 +460,7 @@ static void _cubicTo(SwStroke& stroke, const SwPoint& ctrl1, const SwPoint& ctrl
|
|||
stroke.angleOut = angleIn;
|
||||
_processCorner(stroke, 0);
|
||||
}
|
||||
} else if (abs(mathDiff(stroke.angleIn, angleIn)) > (ANGLE_PI / 8)) {
|
||||
} else if (abs(mathDiff(stroke.angleIn, angleIn)) > (SW_ANGLE_PI / 8)) {
|
||||
//if the deviation from one arc to the next is too great add a round corner
|
||||
stroke.center = arc[3];
|
||||
stroke.angleOut = angleIn;
|
||||
|
|
@ -515,7 +515,7 @@ static void _cubicTo(SwStroke& stroke, const SwPoint& ctrl1, const SwPoint& ctrl
|
|||
auto alpha1 = mathAtan(_end - _start);
|
||||
|
||||
//is the direction of the border arc opposite to that of the original arc?
|
||||
if (abs(mathDiff(alpha0, alpha1)) > ANGLE_PI / 2) {
|
||||
if (abs(mathDiff(alpha0, alpha1)) > SW_ANGLE_PI / 2) {
|
||||
|
||||
//use the sine rule to find the intersection point
|
||||
auto beta = mathAtan(arc[3] - _start);
|
||||
|
|
@ -583,7 +583,7 @@ static void _addCap(SwStroke& stroke, SwFixed angle, int32_t side)
|
|||
} else if (stroke.cap == StrokeCap::Round) {
|
||||
|
||||
stroke.angleIn = angle;
|
||||
stroke.angleOut = angle + ANGLE_PI;
|
||||
stroke.angleOut = angle + SW_ANGLE_PI;
|
||||
_arcTo(stroke, side);
|
||||
return;
|
||||
|
||||
|
|
@ -692,7 +692,7 @@ static void _endSubPath(SwStroke& stroke)
|
|||
|
||||
//now add the final cap
|
||||
stroke.center = stroke.ptStartSubPath;
|
||||
_addCap(stroke, stroke.subPathAngle + ANGLE_PI, 0);
|
||||
_addCap(stroke, stroke.subPathAngle + SW_ANGLE_PI, 0);
|
||||
|
||||
/* now end the right subpath accordingly. The left one is rewind
|
||||
and deosn't need further processing */
|
||||
|
|
|
|||
|
|
@ -53,7 +53,7 @@ struct Canvas::Impl
|
|||
assert(renderer);
|
||||
|
||||
for (auto paint : paints) {
|
||||
if (paint->id == PAINT_ID_SCENE) {
|
||||
if (paint->id() == PAINT_ID_SCENE) {
|
||||
//We know renderer type, avoid dynamic_cast for performance.
|
||||
auto scene = static_cast<Scene*>(paint);
|
||||
if (!SCENE_IMPL->clear(*renderer)) return Result::InsufficientCondition;
|
||||
|
|
@ -73,7 +73,7 @@ struct Canvas::Impl
|
|||
assert(renderer);
|
||||
|
||||
for(auto paint: paints) {
|
||||
if (paint->id == PAINT_ID_SCENE) {
|
||||
if (paint->id() == PAINT_ID_SCENE) {
|
||||
//We know renderer type, avoid dynamic_cast for performance.
|
||||
auto scene = static_cast<Scene*>(paint);
|
||||
if (!SCENE_IMPL->update(*renderer, nullptr)) return Result::InsufficientCondition;
|
||||
|
|
@ -89,7 +89,7 @@ struct Canvas::Impl
|
|||
{
|
||||
assert(renderer);
|
||||
|
||||
if (paint->id == PAINT_ID_SCENE) {
|
||||
if (paint->id() == PAINT_ID_SCENE) {
|
||||
//We know renderer type, avoid dynamic_cast for performance.
|
||||
auto scene = static_cast<Scene*>(paint);
|
||||
if (!SCENE_IMPL->update(*renderer)) return Result::InsufficientCondition;
|
||||
|
|
@ -108,7 +108,7 @@ struct Canvas::Impl
|
|||
if (!renderer->clear()) return Result::InsufficientCondition;
|
||||
|
||||
for(auto paint: paints) {
|
||||
if (paint->id == PAINT_ID_SCENE) {
|
||||
if (paint->id() == PAINT_ID_SCENE) {
|
||||
//We know renderer type, avoid dynamic_cast for performance.
|
||||
auto scene = static_cast<Scene*>(paint);
|
||||
if(!SCENE_IMPL->render(*renderer)) return Result::InsufficientCondition;
|
||||
|
|
|
|||
|
|
@ -35,7 +35,7 @@ struct LinearGradient::Impl
|
|||
|
||||
LinearGradient::LinearGradient():pImpl(make_unique<Impl>())
|
||||
{
|
||||
id = FILL_ID_LINEAR;
|
||||
_id = FILL_ID_LINEAR;
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -35,7 +35,7 @@ struct RadialGradient::Impl
|
|||
|
||||
RadialGradient::RadialGradient():pImpl(make_unique<Impl>())
|
||||
{
|
||||
id = FILL_ID_RADIAL;
|
||||
_id = FILL_ID_RADIAL;
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -25,7 +25,7 @@
|
|||
|
||||
Scene::Scene() : pImpl(make_unique<Impl>())
|
||||
{
|
||||
id = PAINT_ID_SCENE;
|
||||
_id = PAINT_ID_SCENE;
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -39,7 +39,7 @@ struct Scene::Impl
|
|||
bool clear(RenderMethod& renderer)
|
||||
{
|
||||
for (auto paint : paints) {
|
||||
if (paint->id == PAINT_ID_SCENE) {
|
||||
if (paint->id() == PAINT_ID_SCENE) {
|
||||
//We know renderer type, avoid dynamic_cast for performance.
|
||||
auto scene = static_cast<Scene*>(paint);
|
||||
if (!SCENE_IMPL->clear(renderer)) return false;
|
||||
|
|
@ -57,7 +57,7 @@ struct Scene::Impl
|
|||
bool updateInternal(RenderMethod &renderer, const RenderTransform* transform, uint32_t flag)
|
||||
{
|
||||
for(auto paint: paints) {
|
||||
if (paint->id == PAINT_ID_SCENE) {
|
||||
if (paint->id() == PAINT_ID_SCENE) {
|
||||
//We know renderer type, avoid dynamic_cast for performance.
|
||||
auto scene = static_cast<Scene*>(paint);
|
||||
if (!SCENE_IMPL->update(renderer, transform, flag)) return false;
|
||||
|
|
@ -97,7 +97,7 @@ struct Scene::Impl
|
|||
bool render(RenderMethod &renderer)
|
||||
{
|
||||
for(auto paint: paints) {
|
||||
if (paint->id == PAINT_ID_SCENE) {
|
||||
if (paint->id() == PAINT_ID_SCENE) {
|
||||
//We know renderer type, avoid dynamic_cast for performance.
|
||||
auto scene = static_cast<Scene*>(paint);
|
||||
if(!SCENE_IMPL->render(renderer)) return false;
|
||||
|
|
@ -122,7 +122,7 @@ struct Scene::Impl
|
|||
auto w2 = 0.0f;
|
||||
auto h2 = 0.0f;
|
||||
|
||||
if (paint->id == PAINT_ID_SCENE) {
|
||||
if (paint->id() == PAINT_ID_SCENE) {
|
||||
//We know renderer type, avoid dynamic_cast for performance.
|
||||
auto scene = static_cast<Scene*>(paint);
|
||||
if (!SCENE_IMPL->bounds(&x2, &y2, &w2, &h2)) return false;
|
||||
|
|
|
|||
|
|
@ -32,7 +32,7 @@ constexpr auto PATH_KAPPA = 0.552284f;
|
|||
|
||||
Shape :: Shape() : pImpl(make_unique<Impl>())
|
||||
{
|
||||
id = PAINT_ID_SHAPE;
|
||||
_id = PAINT_ID_SHAPE;
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -18,37 +18,39 @@ void tvgtest()
|
|||
canvas->target(buffer, WIDTH, WIDTH, HEIGHT);
|
||||
canvas->reserve(3); //reserve 3 shape nodes (optional)
|
||||
|
||||
//Linear Gradient Color Stops
|
||||
tvg::Fill::ColorStop colorStops[3];
|
||||
colorStops[0] = {0, 255, 0, 0, 255};
|
||||
colorStops[1] = {0.5, 255, 255, 255, 255};
|
||||
colorStops[2] = {1, 0, 0, 255, 255};
|
||||
|
||||
//Prepare Round Rectangle
|
||||
auto shape1 = tvg::Shape::gen();
|
||||
shape1->appendRect(0, 0, 400, 400, 50); //x, y, w, h, cornerRadius
|
||||
shape1->stroke(255, 255, 255, 255);
|
||||
shape1->stroke(2);
|
||||
shape1->appendRect(0, 0, 400, 400, 0); //x, y, w, h, cornerRadius
|
||||
|
||||
//LinearGradient
|
||||
auto fill = tvg::LinearGradient::gen();
|
||||
fill->linear(0, 0, 400, 400);
|
||||
fill->colorStops(colorStops, 3);
|
||||
|
||||
//Linear Gradient Color Stops
|
||||
tvg::Fill::ColorStop colorStops[2];
|
||||
colorStops[0] = {0, 0, 0, 0, 255};
|
||||
colorStops[1] = {1, 255, 255, 255, 255};
|
||||
|
||||
fill->colorStops(colorStops, 2);
|
||||
|
||||
shape1->fill(move(fill));
|
||||
canvas->push(move(shape1));
|
||||
|
||||
|
||||
//Prepare Circle
|
||||
auto shape2 = tvg::Shape::gen();
|
||||
shape2->appendCircle(400, 400, 200, 200); //cx, cy, radiusW, radiusH
|
||||
shape2->stroke(255, 255, 255, 255);
|
||||
shape2->stroke(2);
|
||||
|
||||
//LinearGradient
|
||||
auto fill2 = tvg::LinearGradient::gen();
|
||||
fill2->linear(400, 200, 400, 600);
|
||||
fill2->colorStops(colorStops, 3);
|
||||
|
||||
//Linear Gradient Color Stops
|
||||
tvg::Fill::ColorStop colorStops2[3];
|
||||
colorStops2[0] = {0, 255, 0, 0, 255};
|
||||
colorStops2[1] = {0.5, 255, 255, 0, 255};
|
||||
colorStops2[2] = {1, 255, 255, 255, 255};
|
||||
|
||||
fill2->colorStops(colorStops2, 3);
|
||||
|
||||
shape2->fill(move(fill2));
|
||||
canvas->push(move(shape2));
|
||||
|
|
@ -57,13 +59,19 @@ void tvgtest()
|
|||
//Prepare Ellipse
|
||||
auto shape3 = tvg::Shape::gen();
|
||||
shape3->appendCircle(600, 600, 150, 100); //cx, cy, radiusW, radiusH
|
||||
shape3->stroke(255, 255, 255, 255);
|
||||
shape3->stroke(2);
|
||||
|
||||
//LinearGradient
|
||||
auto fill3 = tvg::LinearGradient::gen();
|
||||
fill3->linear(450, 600, 750, 600);
|
||||
fill3->colorStops(colorStops, 3);
|
||||
|
||||
//Linear Gradient Color Stops
|
||||
tvg::Fill::ColorStop colorStops3[4];
|
||||
colorStops3[0] = {0, 0, 127, 0, 127};
|
||||
colorStops3[1] = {0.25, 0, 170, 170, 170};
|
||||
colorStops3[2] = {0.5, 200, 0, 200, 200};
|
||||
colorStops3[3] = {1, 255, 255, 255, 255};
|
||||
|
||||
fill3->colorStops(colorStops3, 4);
|
||||
|
||||
shape3->fill(move(fill3));
|
||||
canvas->push(move(shape3));
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue