1 /*
2 * Copyright 2020 Google LLC
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8 // We want to make sure that if we collapse src-over down to src when blending, that batching still
9 // works correctly with a draw that explicitly requests src.
10
11 #include "include/core/SkAlphaType.h"
12 #include "include/core/SkBlendMode.h"
13 #include "include/core/SkCanvas.h"
14 #include "include/core/SkColor.h"
15 #include "include/core/SkColorType.h"
16 #include "include/core/SkImageInfo.h"
17 #include "include/core/SkPaint.h"
18 #include "include/core/SkRect.h"
19 #include "include/core/SkRefCnt.h"
20 #include "include/core/SkShader.h"
21 #include "include/core/SkSurface.h"
22 #include "include/core/SkTypes.h"
23 #include "include/gpu/GpuTypes.h"
24 #include "include/gpu/GrDirectContext.h"
25 #include "include/gpu/GrTypes.h"
26 #include "tests/CtsEnforcement.h"
27 #include "tests/Test.h"
28
29 struct GrContextOptions;
30
DEF_GANESH_TEST_FOR_RENDERING_CONTEXTS(SrcSrcOverBatchTest,reporter,ctxInfo,CtsEnforcement::kNever)31 DEF_GANESH_TEST_FOR_RENDERING_CONTEXTS(SrcSrcOverBatchTest,
32 reporter,
33 ctxInfo,
34 CtsEnforcement::kNever) {
35 auto ctx = ctxInfo.directContext();
36
37 static const int kSize = 8;
38 const SkImageInfo ii = SkImageInfo::Make(kSize, kSize, kRGBA_8888_SkColorType,
39 kPremul_SkAlphaType);
40
41 sk_sp<SkSurface> surface(SkSurface::MakeRenderTarget(
42 ctx, skgpu::Budgeted::kNo, ii, 0, kTopLeft_GrSurfaceOrigin, nullptr));
43
44 auto canvas = surface->getCanvas();
45
46 SkPaint paint;
47 // Setting a shader so that we actually build a processor set and don't fallback to all
48 // defaults.
49 paint.setShader(SkShaders::Color(SK_ColorRED));
50
51 SkIRect rect = SkIRect::MakeWH(2, 2);
52
53 canvas->drawIRect(rect, paint);
54
55 // Now draw a rect with src blend mode. If we collapsed the previous draw to src blend mode (a
56 // setting on caps plus not having any coverage), then we expect this second draw to try to
57 // batch with it. This test is a success if we don't hit any asserts, specifically making sure
58 // that both things we decided can be batched together claim to have the same value for
59 // CompatibleWithCoverageAsAlpha.
60 canvas->translate(3, 0);
61 paint.setBlendMode(SkBlendMode::kSrc);
62 canvas->drawIRect(rect, paint);
63 }
64