diff options
| -rw-r--r-- | gm/bitmapshader.cpp | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/gm/bitmapshader.cpp b/gm/bitmapshader.cpp index 5ee7fca694..98205d2146 100644 --- a/gm/bitmapshader.cpp +++ b/gm/bitmapshader.cpp @@ -10,6 +10,7 @@ #include "SkBitmap.h" #include "SkPaint.h" #include "SkShader.h" +#include "GrContext.h" namespace skiagm { @@ -105,6 +106,34 @@ private: typedef GM INHERITED; }; +DEF_SIMPLE_GM(hugebitmapshader, canvas, 100, 100) { + SkPaint paint; + SkBitmap bitmap; + + // The huge height will exceed GL_MAX_TEXTURE_SIZE. We test that the GL backend will at least + // draw something with a default paint instead of drawing nothing. + // + // (See https://skia-review.googlesource.com/c/skia/+/73200) + int bitmapW = 1; + int bitmapH = 60000; + if (auto* ctx = canvas->getGrContext()) { + bitmapH = ctx->caps()->maxTextureSize() + 1; + } + bitmap.setInfo(SkImageInfo::MakeA8(bitmapW, bitmapH), bitmapW); + uint8_t* pixels = new uint8_t[bitmapH]; + for(int i = 0; i < bitmapH; ++i) { + pixels[i] = i & 0xff; + } + bitmap.setPixels(pixels); + + paint.setShader(SkShader::MakeBitmapShader(bitmap, + SkShader::kMirror_TileMode, SkShader::kMirror_TileMode)); + paint.setColor(SK_ColorRED); + paint.setAntiAlias(true); + canvas->drawCircle(50, 50, 50, paint); + delete [] pixels; +} + ////////////////////////////////////////////////////////////////////////////// static GM* MyFactory(void*) { return new BitmapShaderGM; } |