commit 79a75420814bbccf6633ac6091ee9f7d2bf4bd9a
author Mike Reed <reed@google.com> Fri Mar 15 15:45:09 2019 -0400
committer Skia Commit-Bot <skia-commit-bot@chromium.org> Fri Mar 15 20:24:21 2019 +0000
tree 794cfc23a9183ba5ce25f65cadd04ee1e63e7e24
parent a3407ab9a64dd214e36c2a950116d418bb4731da

allow mixer to defer to a shader

- reverse sense of Blend mixer to be (dst, src, mode)
- change pipeline register convention to be (dst, src)

Bug: skia:
Change-Id: I1f1d990001ad941cb8d44e1488c5f14077e181f8
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/201386
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>

src/opts/SkRasterPipeline_opts.h

diff --git a/src/opts/SkRasterPipeline_opts.h b/src/opts/SkRasterPipeline_opts.h
index 0bc7e0e..38b1d86 100644
--- a/src/opts/SkRasterPipeline_opts.h
+++ b/src/opts/SkRasterPipeline_opts.h
@@ -1478,13 +1478,19 @@
     return mad(to-from, t, from);
 }
 
-// Lerp from dst-color to src-color
 STAGE(lerp_1_float, const float* c) {
     r = lerp(dr, r, *c);
     g = lerp(dg, g, *c);
     b = lerp(db, b, *c);
     a = lerp(da, a, *c);
 }
+STAGE(lerp_native, const float scales[]) {
+    auto c = unaligned_load<F>(scales);
+    r = lerp(dr, r, c);
+    g = lerp(dg, g, c);
+    b = lerp(db, b, c);
+    a = lerp(da, a, c);
+}
 STAGE(lerp_u8, const SkRasterPipeline_MemoryCtx* ctx) {
     auto ptr = ptr_at_xy<const uint8_t>(ctx, dx,dy);
 
@@ -3349,14 +3355,15 @@
 // If a pipeline uses these stages, it'll boot it out of lowp into highp.
 #define NOT_IMPLEMENTED(st) static void (*st)(void) = nullptr;
     NOT_IMPLEMENTED(callback)
-    NOT_IMPLEMENTED(load_src)
-    NOT_IMPLEMENTED(store_src)
-    NOT_IMPLEMENTED(load_dst)
-    NOT_IMPLEMENTED(store_dst)
+    NOT_IMPLEMENTED(load_src) // TODO
+    NOT_IMPLEMENTED(store_src) // TODO
+    NOT_IMPLEMENTED(load_dst) // TODO
+    NOT_IMPLEMENTED(store_dst) // TODO
     NOT_IMPLEMENTED(unbounded_set_rgb)
     NOT_IMPLEMENTED(unbounded_uniform_color)
     NOT_IMPLEMENTED(unpremul)
     NOT_IMPLEMENTED(dither)  // TODO
+    NOT_IMPLEMENTED(lerp_native) // TODO
     NOT_IMPLEMENTED(from_srgb)
     NOT_IMPLEMENTED(to_srgb)
     NOT_IMPLEMENTED(load_f16)