add legacy/helper allocN32Pixels, and convert gm to use it
This is an intermediate api, but might help us quickly get to a point where
no one is creating bitmaps in a 2-step process (setConfig + alloc).
BUG=skia:
R=halcanary@google.com
Review URL: https://codereview.chromium.org/140593005
git-svn-id: http://skia.googlecode.com/svn/trunk@13182 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gm/modecolorfilters.cpp b/gm/modecolorfilters.cpp
index 9859faa..9ac8ddd 100644
--- a/gm/modecolorfilters.cpp
+++ b/gm/modecolorfilters.cpp
@@ -38,8 +38,7 @@
// draws a background behind each test rect to see transparency
static SkShader* make_bg_shader(int checkSize) {
SkBitmap bmp;
- bmp.setConfig(SkBitmap::kARGB_8888_Config, 2 * checkSize, 2 * checkSize);
- bmp.allocPixels();
+ bmp.allocN32Pixels(2 * checkSize, 2 * checkSize);
SkCanvas canvas(bmp);
canvas.clear(0xFF800000);
SkPaint paint;