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author | reed <reed@google.com> | 2014-09-22 07:29:03 -0700 |
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committer | Commit bot <commit-bot@chromium.org> | 2014-09-22 07:29:03 -0700 |
commit | 4a8126e7f81384526629b1e21bf89b632ea13cd9 (patch) | |
tree | 9ee0776304de9dc98e48efc4943dd0fdc45db453 /gm/surface.cpp | |
parent | a29b5d8430ada72bc73b1e6e1b8f09e4b046b2ff (diff) |
Introduce Props to surface (patchset #27 id:520001 of https://codereview.chromium.org/551463004/)"
This reverts commit 29c857d0f3a1cb837f73406eeb6ba9771879b5e7.
TBR=
Author: reed@google.com
Review URL: https://codereview.chromium.org/588143004
Diffstat (limited to 'gm/surface.cpp')
-rw-r--r-- | gm/surface.cpp | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/gm/surface.cpp b/gm/surface.cpp new file mode 100644 index 0000000000..dbcced2cbf --- /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 ) |