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-rw-r--r--chromium/third_party/skia/gm/shadertext2.cpp212
1 files changed, 212 insertions, 0 deletions
diff --git a/chromium/third_party/skia/gm/shadertext2.cpp b/chromium/third_party/skia/gm/shadertext2.cpp
new file mode 100644
index 00000000000..f625d6c02aa
--- /dev/null
+++ b/chromium/third_party/skia/gm/shadertext2.cpp
@@ -0,0 +1,212 @@
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+#include "gm.h"
+#include "SkCanvas.h"
+#include "SkGradientShader.h"
+
+namespace skiagm {
+
+static void makebm(SkBitmap* bm, int w, int h) {
+ bm->allocN32Pixels(w, h);
+ bm->eraseColor(SK_ColorTRANSPARENT);
+
+ SkCanvas canvas(*bm);
+ SkScalar s = SkIntToScalar(SkMin32(w, h));
+ static const SkPoint kPts0[] = { { 0, 0 }, { s, s } };
+ static const SkPoint kPts1[] = { { s, 0 }, { 0, s } };
+ static const SkScalar kPos[] = { 0, SK_Scalar1/2, SK_Scalar1 };
+ static const SkColor kColors0[] = {0x40FF00FF, 0xF0FFFF00, 0x4000FFFF };
+ static const SkColor kColors1[] = {0xF0FF00FF, 0x80FFFF00, 0xF000FFFF };
+
+
+ SkPaint paint;
+
+ paint.setShader(SkGradientShader::CreateLinear(kPts0, kColors0, kPos,
+ SK_ARRAY_COUNT(kColors0), SkShader::kClamp_TileMode))->unref();
+ canvas.drawPaint(paint);
+ paint.setShader(SkGradientShader::CreateLinear(kPts1, kColors1, kPos,
+ SK_ARRAY_COUNT(kColors1), SkShader::kClamp_TileMode))->unref();
+ canvas.drawPaint(paint);
+}
+
+///////////////////////////////////////////////////////////////////////////////
+
+struct LabeledMatrix {
+ SkMatrix fMatrix;
+ const char* fLabel;
+};
+
+class ShaderText2GM : public GM {
+public:
+ ShaderText2GM() {
+ this->setBGColor(0xFFDDDDDD);
+ }
+
+protected:
+
+ SkString onShortName() {
+ return SkString("shadertext2");
+ }
+
+ SkISize onISize() { return SkISize::Make(1800, 900); }
+
+ virtual void onDraw(SkCanvas* canvas) {
+ static const char kText[] = "SKIA";
+ static const int kTextLen = SK_ARRAY_COUNT(kText) - 1;
+ static const int kPointSize = 55;
+
+ SkTDArray<LabeledMatrix> matrices;
+ matrices.append()->fMatrix.reset();
+ matrices.top().fLabel = "Identity";
+ matrices.append()->fMatrix.setScale(1.2f, 0.8f);
+ matrices.top().fLabel = "Scale";
+ matrices.append()->fMatrix.setRotate(10.f);
+ matrices.top().fLabel = "Rotate";
+ matrices.append()->fMatrix.reset();
+ matrices.top().fMatrix.setPerspX(-0.0015f);
+ matrices.top().fMatrix.setPerspY(+0.0015f);
+ matrices.top().fLabel = "Persp";
+
+ SkTDArray<LabeledMatrix> localMatrices;
+ localMatrices.append()->fMatrix.reset();
+ localMatrices.top().fLabel = "Identity";
+ localMatrices.append()->fMatrix.setScale(2.5f, 0.2f);
+ localMatrices.top().fLabel = "Scale";
+ localMatrices.append()->fMatrix.setRotate(45.f);
+ localMatrices.top().fLabel = "Rotate";
+ localMatrices.append()->fMatrix.reset();
+ localMatrices.top().fMatrix.setPerspX(-0.007f);
+ localMatrices.top().fMatrix.setPerspY(+0.008f);
+ localMatrices.top().fLabel = "Persp";
+
+ static SkBitmap bmp;
+ if (bmp.isNull()) {
+ makebm(&bmp, kPointSize / 2, kPointSize / 2);
+ }
+
+ SkPaint fillPaint;
+ fillPaint.setAntiAlias(true);
+ fillPaint.setTextSize(SkIntToScalar(kPointSize));
+ fillPaint.setFilterLevel(SkPaint::kLow_FilterLevel);
+
+ SkPaint outlinePaint;
+ outlinePaint.setAntiAlias(true);
+ outlinePaint.setTextSize(SkIntToScalar(kPointSize));
+ outlinePaint.setStyle(SkPaint::kStroke_Style);
+ outlinePaint.setStrokeWidth(0.f);
+
+ SkScalar w = fillPaint.measureText(kText, kTextLen);
+ static SkScalar kPadY = 0.5f * kPointSize;
+ static SkScalar kPadX = 1.5f * kPointSize;
+
+ SkPaint strokePaint(fillPaint);
+ strokePaint.setStyle(SkPaint::kStroke_Style);
+ strokePaint.setStrokeWidth(kPointSize * 0.1f);
+
+ SkPaint labelPaint;
+ labelPaint.setColor(0xff000000);
+ labelPaint.setAntiAlias(true);
+ labelPaint.setTextSize(12.f);
+
+ canvas->translate(15.f, 15.f);
+ canvas->drawBitmap(bmp, 0, 0);
+ canvas->translate(0, bmp.height() + labelPaint.getTextSize() + 15.f);
+
+ static const char kLabelLabel[] = "localM / canvasM";
+ canvas->drawText(kLabelLabel, strlen(kLabelLabel), 0, 0, labelPaint);
+ canvas->translate(0, 15.f);
+
+ canvas->save();
+ SkScalar maxLabelW = 0;
+ canvas->translate(0, kPadY / 2 + kPointSize);
+ for (int lm = 0; lm < localMatrices.count(); ++lm) {
+ canvas->drawText(matrices[lm].fLabel, strlen(matrices[lm].fLabel),
+ 0, labelPaint.getTextSize() - 1, labelPaint);
+ SkScalar labelW = labelPaint.measureText(matrices[lm].fLabel,
+ strlen(matrices[lm].fLabel));
+ maxLabelW = SkMaxScalar(maxLabelW, labelW);
+ canvas->translate(0.f, 2 * kPointSize + 2.5f * kPadY);
+ }
+ canvas->restore();
+
+ canvas->translate(maxLabelW + kPadX / 2.f, 0.f);
+
+ for (int s = 0; s < 2; ++s) {
+ SkPaint& paint = s ? strokePaint : fillPaint;
+
+ SkScalar columnH = 0;
+ for (int m = 0; m < matrices.count(); ++m) {
+ columnH = 0;
+ canvas->save();
+ canvas->drawText(matrices[m].fLabel, strlen(matrices[m].fLabel),
+ 0, labelPaint.getTextSize() - 1, labelPaint);
+ canvas->translate(0, kPadY / 2 + kPointSize);
+ columnH += kPadY / 2 + kPointSize;
+ for (int lm = 0; lm < localMatrices.count(); ++lm) {
+ paint.setShader(
+ SkShader::CreateBitmapShader(bmp,
+ SkShader::kMirror_TileMode,
+ SkShader::kRepeat_TileMode,
+ &localMatrices[lm].fMatrix))->unref();
+
+ canvas->save();
+ canvas->concat(matrices[m].fMatrix);
+ canvas->drawText(kText, kTextLen, 0, 0, paint);
+ canvas->drawText(kText, kTextLen, 0, 0, outlinePaint);
+ canvas->restore();
+
+ SkPath path;
+ path.arcTo(SkRect::MakeXYWH(-0.1f * w, 0.f,
+ 1.2f * w, 2.f * kPointSize),
+ 225.f, 359.f,
+ false);
+ path.close();
+
+ canvas->translate(0.f, kPointSize + kPadY);
+ columnH += kPointSize + kPadY;
+
+ canvas->save();
+ canvas->concat(matrices[m].fMatrix);
+ canvas->drawTextOnPath(kText, kTextLen, path, NULL, paint);
+ canvas->drawTextOnPath(kText, kTextLen, path, NULL, outlinePaint);
+ canvas->restore();
+ SkPaint stroke;
+ stroke.setStyle(SkPaint::kStroke_Style);
+ canvas->translate(0.f, kPointSize + kPadY);
+ columnH += kPointSize + kPadY;
+ }
+ canvas->restore();
+ canvas->translate(w + kPadX, 0.f);
+ }
+ if (0 == s) {
+ canvas->drawLine(0.f, -kPadY, 0.f, columnH + kPadY, outlinePaint);
+ canvas->translate(kPadX / 2, 0.f);
+ static const char kFillLabel[] = "Filled";
+ static const char kStrokeLabel[] = "Stroked";
+ SkScalar y = columnH + kPadY / 2;
+ SkScalar fillX = -outlinePaint.measureText(kFillLabel, strlen(kFillLabel)) - kPadX;
+ SkScalar strokeX = kPadX;
+ canvas->drawText(kFillLabel, strlen(kFillLabel), fillX, y, labelPaint);
+ canvas->drawText(kStrokeLabel, strlen(kStrokeLabel), strokeX, y, labelPaint);
+ }
+ }
+ }
+
+ virtual uint32_t onGetFlags() const SK_OVERRIDE {
+ // disable 565 for now, til mike fixes the debug assert
+ return kSkip565_Flag | kSkipTiled_Flag;
+ }
+
+private:
+ typedef GM INHERITED;
+};
+
+///////////////////////////////////////////////////////////////////////////////
+
+static GM* MyFactory(void*) { return new ShaderText2GM; }
+static GMRegistry reg(MyFactory);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-08 00:46:31 +0000