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Unified Diff: gm/surface.cpp

Issue 588143004: Introduce Props to surface (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: remove RenderTargetFlags from legacy mode Created 6 years, 3 months ago
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Index: gm/surface.cpp
diff --git a/gm/surface.cpp b/gm/surface.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..dbcced2cbfabf4d4282fd64c85d270279cbaf383
--- /dev/null
+++ b/gm/surface.cpp
@@ -0,0 +1,109 @@
+/*
+ * 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 "SkGradientShader.h"
+#include "SkSurface.h"
+#include "SkSurfaceProps.h"
+
+#define W 200
+#define H 100
+
+static SkShader* make_shader() {
+ int a = 0x99;
+ int b = 0xBB;
+ SkPoint pts[] = { { 0, 0 }, { W, H } };
+ SkColor colors[] = { SkColorSetRGB(a, a, a), SkColorSetRGB(b, b, b) };
+ return SkGradientShader::CreateLinear(pts, colors, NULL, 2, SkShader::kClamp_TileMode);
+}
+
+static SkSurface* make_surface(GrContext* ctx, const SkImageInfo& info, SkPixelGeometry geo,
+ int disallowAA, int disallowDither) {
+ uint32_t flags = 0;
+ if (disallowAA) {
+ flags |= SkSurfaceProps::kDisallowAntiAlias_Flag;
+ }
+ if (disallowDither) {
+ flags |= SkSurfaceProps::kDisallowDither_Flag;
+ }
+
+ SkSurfaceProps props(flags, geo);
+ if (ctx) {
+ return SkSurface::NewRenderTarget(ctx, info, 0, &props);
+ } else {
+ return SkSurface::NewRaster(info, &props);
+ }
+}
+
+static void test_draw(SkCanvas* canvas, const char label[]) {
+ SkPaint paint;
+
+ paint.setAntiAlias(true);
+ paint.setLCDRenderText(true);
+ paint.setDither(true);
+
+ paint.setShader(make_shader())->unref();
+ canvas->drawRect(SkRect::MakeWH(W, H), paint);
+ paint.setShader(NULL);
+
+ paint.setColor(SK_ColorWHITE);
+ paint.setTextSize(32);
+ paint.setTextAlign(SkPaint::kCenter_Align);
+ canvas->drawText(label, strlen(label), W / 2, H * 3 / 4, paint);
+}
+
+class SurfacePropsGM : public skiagm::GM {
+public:
+ SurfacePropsGM() {}
+
+protected:
+ SkString onShortName() SK_OVERRIDE {
+ return SkString("surfaceprops");
+ }
+
+ virtual SkISize onISize() SK_OVERRIDE {
+ return SkISize::Make(W * 4, H * 5);
+ }
+
+ virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+ GrContext* ctx = canvas->getGrContext();
+
+ // must be opaque to have a hope of testing LCD text
+ const SkImageInfo info = SkImageInfo::MakeN32(W, H, kOpaque_SkAlphaType);
+
+ const struct {
+ SkPixelGeometry fGeo;
+ const char* fLabel;
+ } rec[] = {
+ { kUnknown_SkPixelGeometry, "Unknown" },
+ { kRGB_H_SkPixelGeometry, "RGB_H" },
+ { kBGR_H_SkPixelGeometry, "BGR_H" },
+ { kRGB_V_SkPixelGeometry, "RGB_V" },
+ { kBGR_V_SkPixelGeometry, "BGR_V" },
+ };
+
+ SkScalar x = 0;
+ for (int disallowAA = 0; disallowAA <= 1; ++disallowAA) {
+ for (int disallowDither = 0; disallowDither <= 1; ++disallowDither) {
+ SkScalar y = 0;
+ for (size_t i = 0; i < SK_ARRAY_COUNT(rec); ++i) {
+ SkAutoTUnref<SkSurface> surface(make_surface(ctx, info, rec[i].fGeo,
+ disallowAA, disallowDither));
+ test_draw(surface->getCanvas(), rec[i].fLabel);
+ surface->draw(canvas, x, y, NULL);
+ y += H;
+ }
+ x += W;
+ }
+ }
+ }
+
+private:
+ typedef GM INHERITED;
+};
+
+DEF_GM( return new SurfacePropsGM )
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