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gradient: added check for gradient start and end set for 0

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Mateusz Palkowski 2020-10-05 07:59:30 +02:00 • committed by Hermet Park
parent 72847b88cc
commit 3314df89ae
2 changed files with 5 additions and 1 deletions
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1
src/lib/sw_engine/tvgSwFill.cpp
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@ -235,7 +235,6 @@ void fillFetchRadial(const SwFill* fill, uint32_t* dst, uint32_t y, uint32_t x,
void fillFetchLinear(const SwFill* fill, uint32_t* dst, uint32_t y, uint32_t x, uint32_t offset, uint32_t len) void fillFetchLinear(const SwFill* fill, uint32_t* dst, uint32_t y, uint32_t x, uint32_t offset, uint32_t len)
{ {
if (fill->linear.len < FLT_EPSILON) return; if (fill->linear.len < FLT_EPSILON) return;
//Rotation //Rotation
float rx = x + 0.5f; float rx = x + 0.5f;
float ry = y + 0.5f; float ry = y + 0.5f;

5
src/lib/sw_engine/tvgSwRaster.cpp
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@ -21,6 +21,7 @@
*/ */
#include "tvgSwCommon.h" #include "tvgSwCommon.h"
#include "tvgRender.h" #include "tvgRender.h"
#include <float.h>
/************************************************************************/ /************************************************************************/
/* Internal Class Implementation */ /* Internal Class Implementation */
@ -133,6 +134,7 @@ static bool _rasterSolidRle(SwSurface* surface, SwRleData* rle, uint32_t color)
static bool _rasterLinearGradientRect(SwSurface* surface, const SwBBox& region, const SwFill* fill) static bool _rasterLinearGradientRect(SwSurface* surface, const SwBBox& region, const SwFill* fill)
{ {
if (!fill) return false; if (!fill) return false;
if (fill->linear.len < FLT_EPSILON) return false;
auto buffer = surface->buffer + (region.min.y * surface->stride) + region.min.x; auto buffer = surface->buffer + (region.min.y * surface->stride) + region.min.x;
auto h = static_cast<uint32_t>(region.max.y - region.min.y); auto h = static_cast<uint32_t>(region.max.y - region.min.y);
@ -164,6 +166,7 @@ static bool _rasterLinearGradientRect(SwSurface* surface, const SwBBox& region,
static bool _rasterRadialGradientRect(SwSurface* surface, const SwBBox& region, const SwFill* fill) static bool _rasterRadialGradientRect(SwSurface* surface, const SwBBox& region, const SwFill* fill)
{ {
if (!fill) return false; if (!fill) return false;
if (fill->radial.a < FLT_EPSILON) return false;
auto buffer = surface->buffer + (region.min.y * surface->stride) + region.min.x; auto buffer = surface->buffer + (region.min.y * surface->stride) + region.min.x;
auto h = static_cast<uint32_t>(region.max.y - region.min.y); auto h = static_cast<uint32_t>(region.max.y - region.min.y);
@ -196,6 +199,7 @@ static bool _rasterRadialGradientRect(SwSurface* surface, const SwBBox& region,
static bool _rasterLinearGradientRle(SwSurface* surface, SwRleData* rle, const SwFill* fill) static bool _rasterLinearGradientRle(SwSurface* surface, SwRleData* rle, const SwFill* fill)
{ {
if (!rle || !fill) return false; if (!rle || !fill) return false;
if (fill->linear.len < FLT_EPSILON) return false;
auto buf = static_cast<uint32_t*>(alloca(surface->w * sizeof(uint32_t))); auto buf = static_cast<uint32_t*>(alloca(surface->w * sizeof(uint32_t)));
if (!buf) return false; if (!buf) return false;
@ -242,6 +246,7 @@ static bool _rasterLinearGradientRle(SwSurface* surface, SwRleData* rle, const S
static bool _rasterRadialGradientRle(SwSurface* surface, SwRleData* rle, const SwFill* fill) static bool _rasterRadialGradientRle(SwSurface* surface, SwRleData* rle, const SwFill* fill)
{ {
if (!rle || !fill) return false; if (!rle || !fill) return false;
if (fill->radial.a < FLT_EPSILON) return false;
auto buf = static_cast<uint32_t*>(alloca(surface->w * sizeof(uint32_t))); auto buf = static_cast<uint32_t*>(alloca(surface->w * sizeof(uint32_t)));
if (!buf) return false; if (!buf) return false;