Revert "Revert "Disable F16-nullptr sources""

This relands the original change with a modification.  We should
not check for non-null pixels because this breaks the Android
hw bitmap use case.

Bug: b/62482405
Change-Id: I081412bb46754d33b69e02e5754f04a082e081ae
Reviewed-on: https://skia-review.googlesource.com/19494
Commit-Queue: Matt Sarett <msarett@google.com>
Reviewed-by: Matt Sarett <msarett@google.com>

src/image/SkImage_Raster.cpp

@@ -303,25 +303,25 @@ sk_sp<SkImage> SkImage::MakeFromRaster(const SkPixmap& pmap, RasterReleaseProc p
     return sk_make_sp<SkImage_Raster>(pmap.info(), std::move(data), pmap.rowBytes(), pmap.ctable());
 }
 
-sk_sp<SkImage> SkMakeImageFromRasterBitmap(const SkBitmap& bm, SkCopyPixelsMode cpm) {
+sk_sp<SkImage> SkMakeImageFromRasterBitmapPriv(const SkBitmap& bm, SkCopyPixelsMode cpm) {
-    bool hasColorTable = false;
+    if (kAlways_SkCopyPixelsMode == cpm || (!bm.isImmutable() && kNever_SkCopyPixelsMode != cpm)) {
-    if (kIndex_8_SkColorType == bm.colorType()) {
+        SkPixmap pmap;
-        hasColorTable = bm.getColorTable() != nullptr;
+        if (bm.peekPixels(&pmap)) {
+            return SkImage::MakeRasterCopy(pmap);
+        } else {
+            return sk_sp<SkImage>();
+        }
     }
 
-    if (!SkImage_Raster::ValidArgs(bm.info(), bm.rowBytes(), hasColorTable, nullptr)) {
+    return sk_make_sp<SkImage_Raster>(bm, kNever_SkCopyPixelsMode == cpm);
+}
+
+sk_sp<SkImage> SkMakeImageFromRasterBitmap(const SkBitmap& bm, SkCopyPixelsMode cpm) {
+    if (!SkImageInfoIsValidAllowNumericalCS(bm.info()) || bm.rowBytes() < bm.info().minRowBytes()) {
         return nullptr;
     }
 
-    if (kAlways_SkCopyPixelsMode == cpm || (!bm.isImmutable() && kNever_SkCopyPixelsMode != cpm)) {
+    return SkMakeImageFromRasterBitmapPriv(bm, cpm);
-        SkPixmap pmap;
-        if (bm.getPixels() && bm.peekPixels(&pmap)) {
-            return SkImage::MakeRasterCopy(pmap);
-        }
-    } else {
-        return sk_make_sp<SkImage_Raster>(bm, kNever_SkCopyPixelsMode == cpm);
-    }
-    return sk_sp<SkImage>();
 }
 
 sk_sp<SkImage> SkMakeImageInColorSpace(const SkBitmap& bm, sk_sp<SkColorSpace> dstCS, uint32_t id) {
@@ -339,7 +339,7 @@ sk_sp<SkImage> SkMakeImageInColorSpace(const SkBitmap& bm, sk_sp<SkColorSpace> d
     // For the Android use case, this is very likely to be true.
     if (SkColorSpace::Equals(srcCS.get(), dstCS.get())) {
         SkASSERT(0 == id || bm.getGenerationID() == id);
-        return SkMakeImageFromRasterBitmap(bm, kNever_SkCopyPixelsMode);
+        return SkMakeImageFromRasterBitmapPriv(bm, kNever_SkCopyPixelsMode);
     }
 
     return SkImage::MakeFromGenerator(SkColorSpaceXformImageGenerator::Make(

src/image/SkSurface_Gpu.cpp

@@ -175,7 +175,7 @@ void SkSurface_Gpu::onPrepareForExternalIO() {
 bool SkSurface_Gpu::Valid(const SkImageInfo& info) {
     switch (info.colorType()) {
         case kRGBA_F16_SkColorType:
-            return !info.colorSpace() || info.colorSpace()->gammaIsLinear();
+            return info.colorSpace() && info.colorSpace()->gammaIsLinear();
         case kRGBA_8888_SkColorType:
         case kBGRA_8888_SkColorType:
             return !info.colorSpace() || info.colorSpace()->gammaCloseToSRGB();
@@ -187,7 +187,7 @@ bool SkSurface_Gpu::Valid(const SkImageInfo& info) {
 bool SkSurface_Gpu::Valid(GrContext* context, GrPixelConfig config, SkColorSpace* colorSpace) {
     switch (config) {
         case kRGBA_half_GrPixelConfig:
-            return !colorSpace || colorSpace->gammaIsLinear();
+            return colorSpace && colorSpace->gammaIsLinear();
         case kSRGBA_8888_GrPixelConfig:
         case kSBGRA_8888_GrPixelConfig:
             return context->caps()->srgbSupport() && colorSpace && colorSpace->gammaCloseToSRGB();

src/image/SkSurface_Raster.cpp

@@ -63,7 +63,7 @@ bool SkSurfaceValidateRasterInfo(const SkImageInfo& info, size_t rowBytes) {
             shift = 2;
             break;
         case kRGBA_F16_SkColorType:
-            if (info.colorSpace() && !info.colorSpace()->gammaIsLinear()) {
+            if (!info.colorSpace() || !info.colorSpace()->gammaIsLinear()) {
                 return false;
             }
             shift = 3;

tests/SurfaceTest.cpp

@@ -837,7 +837,7 @@ static void test_surface_creation_and_snapshot_with_color_space(
         { kN32_SkColorType,       srgbColorSpace,   true,  "N32-srgb"    },
         { kN32_SkColorType,       adobeColorSpace,  true,  "N32-adobe"   },
         { kN32_SkColorType,       oddColorSpace,    false, "N32-odd"     },
-        { kRGBA_F16_SkColorType,  nullptr,          true,  "F16-nullptr" },
+        { kRGBA_F16_SkColorType,  nullptr,          false, "F16-nullptr" },
         { kRGBA_F16_SkColorType,  linearColorSpace, true,  "F16-linear"  },
         { kRGBA_F16_SkColorType,  srgbColorSpace,   false, "F16-srgb"    },
         { kRGBA_F16_SkColorType,  adobeColorSpace,  false, "F16-adobe"   },