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sw_engine: allow 8bit grayscale gradient filling

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Hermet Park 2023-09-13 15:30:29 +09:00 • committed by Hermet Park
parent e9490e375c
commit ed1b4a4923
1 changed files with 32 additions and 18 deletions
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50
src/renderer/sw_engine/tvgSwRaster.cpp
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@ -165,6 +165,10 @@ static inline bool _matting(const SwSurface* surface)
else return false;
}
static inline uint8_t _opMaskNone(uint8_t s, TVG_UNUSED uint8_t d, TVG_UNUSED uint8_t a)
{
return s;
}
static inline uint8_t _opMaskAdd(uint8_t s, uint8_t d, uint8_t a)
{
@ -1704,10 +1708,19 @@ static bool _rasterTranslucentGradientRle(SwSurface* surface, const SwRleData* r
{
auto span = rle->spans;
for (uint32_t i = 0; i < rle->size; ++i, ++span) {
auto dst = &surface->buf32[span->y * surface->stride + span->x];
if (span->coverage == 255) fillMethod()(fill, dst, span->y, span->x, span->len, opBlendPreNormal, 255);
else fillMethod()(fill, dst, span->y, span->x, span->len, opBlendNormal, span->coverage);
//32 bits
if (surface->channelSize == sizeof(uint32_t)) {
for (uint32_t i = 0; i < rle->size; ++i, ++span) {
auto dst = &surface->buf32[span->y * surface->stride + span->x];
if (span->coverage == 255) fillMethod()(fill, dst, span->y, span->x, span->len, opBlendPreNormal, 255);
else fillMethod()(fill, dst, span->y, span->x, span->len, opBlendNormal, span->coverage);
}
//8 bits
} else if (surface->channelSize == sizeof(uint8_t)) {
for (uint32_t i = 0; i < rle->size; ++i, ++span) {
auto dst = &surface->buf8[span->y * surface->stride + span->x];
fillMethod()(fill, dst, span->y, span->x, span->len, _opMaskAdd, 255);
}
}
return true;
}
@ -1718,11 +1731,22 @@ static bool _rasterSolidGradientRle(SwSurface* surface, const SwRleData* rle, co
{
auto span = rle->spans;
for (uint32_t i = 0; i < rle->size; ++i, ++span) {
auto dst = &surface->buf32[span->y * surface->stride + span->x];
if (span->coverage == 255) fillMethod()(fill, dst, span->y, span->x, span->len, opBlendSrcOver, 255);
else fillMethod()(fill, dst, span->y, span->x, span->len, opBlendInterp, span->coverage);
//32 bits
if (surface->channelSize == sizeof(uint32_t)) {
for (uint32_t i = 0; i < rle->size; ++i, ++span) {
auto dst = &surface->buf32[span->y * surface->stride + span->x];
if (span->coverage == 255) fillMethod()(fill, dst, span->y, span->x, span->len, opBlendSrcOver, 255);
else fillMethod()(fill, dst, span->y, span->x, span->len, opBlendInterp, span->coverage);
}
//8 bits
} else if (surface->channelSize == sizeof(uint8_t)) {
for (uint32_t i = 0; i < rle->size; ++i, ++span) {
auto dst = &surface->buf8[span->y * surface->stride + span->x];
if (span->coverage == 255) fillMethod()(fill, dst, span->y, span->x, span->len, _opMaskNone, 255);
else fillMethod()(fill, dst, span->y, span->x, span->len, _opMaskAdd, span->coverage);
}
}
return true;
}
@ -1890,11 +1914,6 @@ void rasterPremultiply(Surface* surface)
bool rasterGradientShape(SwSurface* surface, SwShape* shape, unsigned id)
{
if (surface->channelSize == sizeof(uint8_t)) {
TVGERR("SW_ENGINE", "Not supported grayscale gradient!");
return false;
}
if (!shape->fill) return false;
if (shape->fastTrack) {
@ -1910,11 +1929,6 @@ bool rasterGradientShape(SwSurface* surface, SwShape* shape, unsigned id)
bool rasterGradientStroke(SwSurface* surface, SwShape* shape, unsigned id)
{
if (surface->channelSize == sizeof(uint8_t)) {
TVGERR("SW_ENGINE", "Not supported grayscale gradient!");
return false;
}
if (!shape->stroke || !shape->stroke->fill || !shape->strokeRle) return false;
if (id == TVG_CLASS_ID_LINEAR) return _rasterLinearGradientRle(surface, shape->strokeRle, shape->stroke->fill);