SkPDF: images support 32-but-not-N32 colortype

gm/all_bitmap_configs.cpp

Index: gm/all_bitmap_configs.cpp
diff --git a/gm/all_bitmap_configs.cpp b/gm/all_bitmap_configs.cpp
index 4cabf2ec9b5ae5527aac67fc65f6965a12870d2c..46c5d5eed5a432b6e1319564bfed9029dec067a8 100644
--- a/gm/all_bitmap_configs.cpp
+++ b/gm/all_bitmap_configs.cpp
@@ -190,3 +190,29 @@ DEF_SIMPLE_GM(all_bitmap_configs, canvas, SCALE, 6 * SCALE) {
     SkBitmap bitmapG8 = make_bitmap(kGray_8_SkColorType);
     draw(canvas, p, bitmapG8, kGray_8_SkColorType, "Gray 8");
 }
+
+// Works on Ganesh, fails on Raster.
+SkImage* make_not_native32_color_wheel() {
+    SkBitmap n32bitmap, notN32bitmap;
+    n32bitmap.allocN32Pixels(SCALE, SCALE);
+    n32bitmap.eraseColor(SK_ColorTRANSPARENT);
+    SkCanvas n32canvas(n32bitmap);
+    color_wheel_native(&n32canvas);
+    n32canvas.flush();
+    #if SK_PMCOLOR_BYTE_ORDER(B,G,R,A)
+        const SkColorType ct = kRGBA_8888_SkColorType;
+    #elif SK_PMCOLOR_BYTE_ORDER(R,G,B,A)
+        const SkColorType ct = kBGRA_8888_SkColorType;
+    #endif
+    static_assert(ct != kN32_SkColorType, "BRGA!=RGBA");
+    SkAssertResult(n32bitmap.copyTo(&notN32bitmap, ct));
+    SkASSERT(notN32bitmap.colorType() == ct);
+    return SkImage::NewFromBitmap(notN32bitmap);
+}
+
+DEF_SIMPLE_GM(not_native32_bitmap_config, canvas, SCALE, SCALE) {
+    SkAutoTUnref<SkImage> notN32image(make_not_native32_color_wheel());
+    SkASSERT(notN32image);
+    sk_tool_utils::draw_checkerboard(canvas, SK_ColorLTGRAY, SK_ColorWHITE, 8);
+    canvas->drawImage(notN32image, 0.0f, 0.0f);
+}