add inital gm for colorfilters
BUG=skia:
R=djsollen@google.com
Review URL: https://codereview.chromium.org/140393005
git-svn-id: http://skia.googlecode.com/svn/trunk@13346 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gm/colorfilters.cpp b/gm/colorfilters.cpp
new file mode 100644
index 0000000..4246d69
--- /dev/null
+++ b/gm/colorfilters.cpp
@@ -0,0 +1,88 @@
+/*
+ * Copyright 2014 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 "SkColorFilter.h"
+#include "SkGradientShader.h"
+
+static SkShader* make_shader(const SkRect& bounds) {
+ const SkPoint pts[] = {
+ { bounds.left(), bounds.top() },
+ { bounds.right(), bounds.bottom() },
+ };
+ const SkColor colors[] = {
+ SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorBLACK,
+ SK_ColorCYAN, SK_ColorMAGENTA, SK_ColorYELLOW,
+ };
+ return SkGradientShader::CreateLinear(pts,
+ colors, NULL, SK_ARRAY_COUNT(colors),
+ SkShader::kClamp_TileMode);
+}
+
+typedef void (*InstallPaint)(SkPaint*, uint32_t, uint32_t);
+
+static void install_nothing(SkPaint* paint, uint32_t, uint32_t) {
+ paint->setColorFilter(NULL);
+}
+
+static void install_lighting(SkPaint* paint, uint32_t mul, uint32_t add) {
+ paint->setColorFilter(SkColorFilter::CreateLightingFilter(mul, add))->unref();
+}
+
+class ColorFiltersGM : public skiagm::GM {
+public:
+ ColorFiltersGM() {
+ fName.set("lightingcolorfilter");
+ }
+
+protected:
+ virtual SkString onShortName() {
+ return fName;
+ }
+
+ virtual SkISize onISize() {
+ return SkISize::Make(640, 480);
+ }
+
+ virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+ SkPaint paint;
+ SkRect r;
+ r.setWH(600, 50);
+ paint.setShader(make_shader(r))->unref();
+
+ const struct {
+ InstallPaint fProc;
+ uint32_t fData0, fData1;
+ } rec[] = {
+ { install_nothing, 0, 0 },
+ { install_lighting, 0xFF0000, 0 },
+ { install_lighting, 0x00FF00, 0 },
+ { install_lighting, 0x0000FF, 0 },
+ { install_lighting, 0x000000, 0xFF0000 },
+ { install_lighting, 0x000000, 0x00FF00 },
+ { install_lighting, 0x000000, 0x0000FF },
+ };
+
+ canvas->translate(10, 10);
+ for (size_t i = 0; i < SK_ARRAY_COUNT(rec); ++i) {
+ rec[i].fProc(&paint, rec[i].fData0, rec[i].fData1);
+ canvas->drawRect(r, paint);
+ canvas->translate(0, r.height() + 10);
+ }
+ }
+
+private:
+ SkString fName;
+ typedef GM INHERITED;
+};
+
+
+//////////////////////////////////////////////////////////////////////////////
+
+DEF_GM( return SkNEW(ColorFiltersGM); )
+
diff --git a/gyp/gmslides.gypi b/gyp/gmslides.gypi
index 30fd5e6..ca3a7f6 100644
--- a/gyp/gmslides.gypi
+++ b/gyp/gmslides.gypi
@@ -43,6 +43,7 @@
'../gm/clippedbitmapshaders.cpp',
'../gm/coloremoji.cpp',
'../gm/colorfilterimagefilter.cpp',
+ '../gm/colorfilters.cpp',
'../gm/colormatrix.cpp',
'../gm/colortype.cpp',
'../gm/complexclip.cpp',