1 files changed, 77 insertions, 0 deletions
diff --git a/external/skia/source/skia_opts.cxx b/external/skia/source/skia_opts.cxx
new file mode 100644
index 000000000..be728d600
--- /dev/null
+++ b/external/skia/source/skia_opts.cxx
@@ -0,0 +1,77 @@
+/*
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include <skia_opts.hxx>
+
+#include "include/private/SkOnce.h"
+
+#if defined __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wshadow"
+#endif
+#include "src/core/SkCpu.h"
+#include "src/core/SkOpts.h"
+#if defined __GNUC__
+#pragma GCC diagnostic pop
+#endif
+
+void SkConvertRGBToRGBA(uint32_t* dest, const uint8_t* src, int count)
+{
+    SkOpts::RGB_to_RGB1(dest, src, count);
+}
+
+void SkConvertGrayToRGBA(uint32_t* dest, const uint8_t* src, int count)
+{
+    SkOpts::gray_to_RGB1(dest, src, count);
+}
+
+void SkConvertRGBAToRGB(uint8_t* dest, const uint32_t* src, int count)
+{
+    SkLoOpts::RGB1_to_RGB(dest, src, count);
+}
+
+void SkConvertRGBAToR(uint8_t* dest, const uint32_t* src, int count)
+{
+    SkLoOpts::RGB1_to_R(dest, src, count);
+}
+
+// The rest is mostly based on Skia's SkOpts.cpp, reduced to only SSSE3 so far.
+
+#if SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSSE3
+    #define SK_OPTS_NS ssse3
+#else
+    #define SK_OPTS_NS portable
+#endif
+
+#include "skia_opts_internal.hxx"
+
+namespace SkLoOpts {
+    // Define default function pointer values here...
+    // If our global compile options are set high enough, these defaults might even be
+    // CPU-specialized, e.g. a typical x86-64 machine might start with SSE2 defaults.
+    // They'll still get a chance to be replaced with even better ones, e.g. using SSE4.1.
+#define DEFINE_DEFAULT(name) decltype(name) name = SK_OPTS_NS::name
+    DEFINE_DEFAULT(RGB1_to_RGB);
+    DEFINE_DEFAULT(RGB1_to_R);
+#undef DEFINE_DEFAULT
+
+    // Each Init_foo() is defined in its own file.
+    void Init_ssse3();
+
+    static void init() {
+#if !defined(SK_BUILD_NO_OPTS)
+    #if defined(SK_CPU_X86)
+        #if SK_CPU_SSE_LEVEL < SK_CPU_SSE_LEVEL_SSSE3
+            if (SkCpu::Supports(SkCpu::SSSE3)) { Init_ssse3(); }
+        #endif
+    #endif
+#endif
+    }
+
+    void Init() {
+        static SkOnce once;
+        once(init);
+    }
+}  // namespace SkLoOpts