}
virtual SkISize onISize() {
- return make_isize(200, 400);
+ return make_isize(200, 500);
}
void drawClippedRect(SkCanvas* canvas, int x, int y, const SkPaint& paint) {
virtual void onDraw(SkCanvas* canvas) {
canvas->clear(0x00000000);
+ test(canvas, 0, 0, SkPerlinNoiseShader::kFractalNoise_Type,
+ 0.1f, 0.1f, 0, 0, false);
+ test(canvas, 100, 0, SkPerlinNoiseShader::kTurbulence_Type,
+ 0.1f, 0.1f, 0, 0, false);
- test(canvas, 0, 0, SkPerlinNoiseShader::kFractalNoise_Type,
+ test(canvas, 0, 100, SkPerlinNoiseShader::kFractalNoise_Type,
0.1f, 0.1f, 2, 0, false);
- test(canvas, 100, 0, SkPerlinNoiseShader::kFractalNoise_Type,
+ test(canvas, 100, 100, SkPerlinNoiseShader::kFractalNoise_Type,
0.2f, 0.4f, 5, 0, true);
- test(canvas, 0, 100, SkPerlinNoiseShader::kTurbulence_Type,
+ test(canvas, 0, 200, SkPerlinNoiseShader::kTurbulence_Type,
0.1f, 0.1f, 2, 0, true);
- test(canvas, 100, 100, SkPerlinNoiseShader::kTurbulence_Type,
+ test(canvas, 100, 200, SkPerlinNoiseShader::kTurbulence_Type,
0.2f, 0.4f, 5, 0, false);
- test(canvas, 0, 200, SkPerlinNoiseShader::kFractalNoise_Type,
+ test(canvas, 0, 300, SkPerlinNoiseShader::kFractalNoise_Type,
0.1f, 0.1f, 3, 1, false);
- test(canvas, 100, 200, SkPerlinNoiseShader::kFractalNoise_Type,
+ test(canvas, 100, 300, SkPerlinNoiseShader::kFractalNoise_Type,
0.1f, 0.1f, 3, 4, false);
canvas->scale(SkFloatToScalar(0.75f), SkFloatToScalar(1.0f));
- test(canvas, 0, 300, SkPerlinNoiseShader::kFractalNoise_Type,
+ test(canvas, 0, 400, SkPerlinNoiseShader::kFractalNoise_Type,
0.1f, 0.1f, 2, 0, false);
- test(canvas, 100, 300, SkPerlinNoiseShader::kFractalNoise_Type,
+ test(canvas, 100, 400, SkPerlinNoiseShader::kFractalNoise_Type,
0.2f, 0.4f, 5, 0, true);
}
#include "SkDither.h"
#include "SkPerlinNoiseShader.h"
+#include "SkColorFilter.h"
#include "SkFlattenableBuffers.h"
#include "SkShader.h"
#include "SkUnPreMultiply.h"
GrEffectRef* SkPerlinNoiseShader::asNewEffect(GrContext* context, const SkPaint& paint) const {
SkASSERT(NULL != context);
+ if (0 == fNumOctaves) {
+ SkColor clearColor = 0;
+ if (kFractalNoise_Type == fType) {
+ clearColor = SkColorSetARGB(paint.getAlpha() / 2, 127, 127, 127);
+ }
+ SkAutoTUnref<SkColorFilter> cf(SkColorFilter::CreateModeFilter(
+ clearColor, SkXfermode::kSrc_Mode));
+ return cf->asNewEffect(context);
+ }
+
// Either we don't stitch tiles, either we have a valid tile size
SkASSERT(!fStitchTiles || !fTileSize.isEmpty());