diff options
| author |  Cary Clark <caryclark@skia.org> | 2018-02-21 08:14:26 -0500 |
|---|---|---|
| committer |  Skia Commit-Bot <skia-commit-bot@chromium.org> | 2018-02-21 13:58:22 +0000 |
| commit | bd8b25a7b4c20d7a612fbb6af9586ec994609202 (patch) | |
| tree | 59c29aef09b65ff6350d17a3cb936163f31249c2 /gm | |
| parent | aefcccb5d84fb0e0cb8161d4021e8fbd724e2d9e (diff) | |
writePixels should notify GPU that pixels have changed
R=reed@google.com,robertphillips@google.com
Bug: skia:7644
Change-Id: I469c537a649e4d8d05a78cedb26caa3057d824c1
Reviewed-on: https://skia-review.googlesource.com/108961
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Cary Clark <caryclark@google.com>
Diffstat (limited to 'gm')
| -rw-r--r-- | gm/copyTo4444.cpp | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/gm/copyTo4444.cpp b/gm/copyTo4444.cpp index b860dca3e9..ec9b72610d 100644 --- a/gm/copyTo4444.cpp +++ b/gm/copyTo4444.cpp @@ -54,3 +54,28 @@ static GM* MyFactory(void*) { return new CopyTo4444GM; } static GMRegistry reg(MyFactory); } + +DEF_SIMPLE_GM(format4444, canvas, 64, 64) { + canvas->scale(16, 16); + SkBitmap bitmap; + SkImageInfo imageInfo = SkImageInfo::Make(1, 1, kARGB_4444_SkColorType, kPremul_SkAlphaType); + bitmap.allocPixels(imageInfo); + SkCanvas offscreen(bitmap); + offscreen.clear(SK_ColorRED); + canvas->drawBitmap(bitmap, 0, 0); + offscreen.clear(SK_ColorBLUE); + canvas->drawBitmap(bitmap, 1, 1); + auto pack4444 = [](unsigned a, unsigned r, unsigned g, unsigned b) -> uint16_t { + return (a << 0) | (b << 4) | (g << 8) | (r << 12); + }; + uint16_t red4444 = pack4444(0xF, 0xF, 0x0, 0x0); + uint16_t blue4444 = pack4444(0xF, 0x0, 0x0, 0x0F); + SkPixmap redPixmap(imageInfo, &red4444, 2); + if (bitmap.writePixels(redPixmap, 0, 0)) { + canvas->drawBitmap(bitmap, 2, 2); + } + SkPixmap bluePixmap(imageInfo, &blue4444, 2); + if (bitmap.writePixels(bluePixmap, 0, 0)) { + canvas->drawBitmap(bitmap, 3, 3); + } +} |