Add F16 source to the linear pipelin.
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1882893003
Review URL: https://codereview.chromium.org/1882893003
diff --git a/src/core/SkLinearBitmapPipeline_sample.h b/src/core/SkLinearBitmapPipeline_sample.h
index 7157ffc..d436e39 100644
--- a/src/core/SkLinearBitmapPipeline_sample.h
+++ b/src/core/SkLinearBitmapPipeline_sample.h
@@ -9,6 +9,7 @@
#define SkLinearBitmapPipeline_sampler_DEFINED
#include "SkFixed.h"
+#include "SkHalf.h"
#include "SkLinearBitmapPipeline_core.h"
#include <array>
#include <tuple>
@@ -734,6 +735,59 @@
using PixelIndex8SRGB = PixelIndex8<kSRGB_SkColorProfileType>;
using PixelIndex8LRGB = PixelIndex8<kLinear_SkColorProfileType>;
+class PixelHalfLinear {
+public:
+ PixelHalfLinear(int width, const uint64_t* src) : fSrc{src}, fWidth{width}{ }
+ PixelHalfLinear(const SkPixmap& srcPixmap)
+ : fSrc{srcPixmap.addr64()}
+ , fWidth{static_cast<int>(srcPixmap.rowBytes() / 8)} { }
+
+ void VECTORCALL getFewPixels(int n, Sk4s xs, Sk4s ys, Sk4f* px0, Sk4f* px1, Sk4f* px2) {
+ Sk4i XIs = SkNx_cast<int, SkScalar>(xs);
+ Sk4i YIs = SkNx_cast<int, SkScalar>(ys);
+ Sk4i bufferLoc = YIs * fWidth + XIs;
+ switch (n) {
+ case 3:
+ *px2 = this->getPixelAt(fSrc, bufferLoc[2]);
+ case 2:
+ *px1 = this->getPixelAt(fSrc, bufferLoc[1]);
+ case 1:
+ *px0 = this->getPixelAt(fSrc, bufferLoc[0]);
+ default:
+ break;
+ }
+ }
+
+ void VECTORCALL get4Pixels(Sk4s xs, Sk4s ys, Sk4f* px0, Sk4f* px1, Sk4f* px2, Sk4f* px3) {
+ Sk4i XIs = SkNx_cast<int, SkScalar>(xs);
+ Sk4i YIs = SkNx_cast<int, SkScalar>(ys);
+ Sk4i bufferLoc = YIs * fWidth + XIs;
+ *px0 = this->getPixelAt(fSrc, bufferLoc[0]);
+ *px1 = this->getPixelAt(fSrc, bufferLoc[1]);
+ *px2 = this->getPixelAt(fSrc, bufferLoc[2]);
+ *px3 = this->getPixelAt(fSrc, bufferLoc[3]);
+ }
+
+ void get4Pixels(const void* vsrc, int index, Sk4f* px0, Sk4f* px1, Sk4f* px2, Sk4f* px3) {
+ const uint32_t* src = static_cast<const uint32_t*>(vsrc);
+ *px0 = this->getPixelAt(src, index + 0);
+ *px1 = this->getPixelAt(src, index + 1);
+ *px2 = this->getPixelAt(src, index + 2);
+ *px3 = this->getPixelAt(src, index + 3);
+ }
+
+ Sk4f getPixelAt(const void* vsrc, int index) {
+ const uint64_t* src = static_cast<const uint64_t*>(vsrc);
+ return SkHalfToFloat_01(*src);
+ }
+
+ const void* row(int y) { return fSrc + y * fWidth[0]; }
+
+private:
+ const uint64_t* const fSrc;
+ const Sk4i fWidth;
+};
+
} // namespace
#endif // SkLinearBitmapPipeline_sampler_DEFINED