Make SkImage_Lazy::onMakeColorSpace return a SkImage_Lazy

Make SkImage_Lazy::onMakeColorSpace return a new SkImage_Lazy
with the color space of SkImage_Lazy::fInfo changed.

Update the call to SkImageGenerator::getPixels to specify
image info with this new color space.

Update the call to SkImageGenerator::generateTexture to specify
this new color space. Update SkPictureImageGenerator to respect
the color space argument. Add a SkTransferFunctionBehavior
argument to SkImageGenerator::generateTexture to indicate if
color conversion is to be doing using an xform canvas.

Update Generator_GrYUVProvider::refAsTextureProxy to include a
color conversion step to respect this new color space.

TBR=reed@google.com
Bug:739559
Change-Id: I156a858884659e9dfae739a653bab2ef89274959
Reviewed-on: https://skia-review.googlesource.com/21605
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Christopher Cameron <ccameron@chromium.org>
Reviewed-by: Christopher Cameron <ccameron@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>

1 files changed, 5 insertions, 3 deletions

diff --git a/src/core/SkImageGenerator.cpp b/src/core/SkImageGenerator.cpp
index 9e5f78e9a0..ab7667426e 100644
--- a/src/core/SkImageGenerator.cpp
+++ b/src/core/SkImageGenerator.cpp
@@ -65,16 +65,18 @@ bool SkImageGenerator::getYUV8Planes(const SkYUVSizeInfo& sizeInfo, void* planes
 #include "GrTextureProxy.h"
 
 sk_sp<GrTextureProxy> SkImageGenerator::generateTexture(GrContext* ctx, const SkImageInfo& info,
-                                                        const SkIPoint& origin) {
+                                                        const SkIPoint& origin,
+                                                        SkTransferFunctionBehavior behavior) {
     SkIRect srcRect = SkIRect::MakeXYWH(origin.x(), origin.y(), info.width(), info.height());
     if (!SkIRect::MakeWH(fInfo.width(), fInfo.height()).contains(srcRect)) {
         return nullptr;
     }
-    return this->onGenerateTexture(ctx, info, origin);
+    return this->onGenerateTexture(ctx, info, origin, behavior);
 }
 
 sk_sp<GrTextureProxy> SkImageGenerator::onGenerateTexture(GrContext*, const SkImageInfo&,
-                                                          const SkIPoint&) {
+                                                          const SkIPoint&,
+                                                          SkTransferFunctionBehavior) {
     return nullptr;
 }
 #endif