xref: /aosp_15_r20/external/skia/docs/examples/Canvas_drawImageRect.cpp (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1*c8dee2aaSAndroid Build Coastguard Worker // Copyright 2019 Google LLC.
2*c8dee2aaSAndroid Build Coastguard Worker // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
3*c8dee2aaSAndroid Build Coastguard Worker #include "tools/fiddle/examples.h"
4*c8dee2aaSAndroid Build Coastguard Worker REG_FIDDLE(Canvas_drawImageRect, 256, 64, false, 0) {
draw(SkCanvas * canvas)5*c8dee2aaSAndroid Build Coastguard Worker void draw(SkCanvas* canvas) {
6*c8dee2aaSAndroid Build Coastguard Worker     uint32_t pixels[][4] = {
7*c8dee2aaSAndroid Build Coastguard Worker             { 0xFFFF0000, 0xFFFF0000, 0xFFFF0000, 0xFFFF0000 },
8*c8dee2aaSAndroid Build Coastguard Worker             { 0xFFFF0000, 0xFF000000, 0xFFFFFFFF, 0xFFFF0000 },
9*c8dee2aaSAndroid Build Coastguard Worker             { 0xFFFF0000, 0xFFFFFFFF, 0xFF000000, 0xFFFF0000 },
10*c8dee2aaSAndroid Build Coastguard Worker             { 0xFFFF0000, 0xFFFF0000, 0xFFFF0000, 0xFFFF0000 } };
11*c8dee2aaSAndroid Build Coastguard Worker     SkBitmap redBorder;
12*c8dee2aaSAndroid Build Coastguard Worker     redBorder.installPixels(SkImageInfo::MakeN32Premul(4, 4),
13*c8dee2aaSAndroid Build Coastguard Worker             (void*) pixels, sizeof(pixels[0]));
14*c8dee2aaSAndroid Build Coastguard Worker     sk_sp<SkImage> image = redBorder.asImage();
15*c8dee2aaSAndroid Build Coastguard Worker     SkSamplingOptions sampling;
16*c8dee2aaSAndroid Build Coastguard Worker     for (auto constraint : {
17*c8dee2aaSAndroid Build Coastguard Worker             SkCanvas::kFast_SrcRectConstraint,
18*c8dee2aaSAndroid Build Coastguard Worker             SkCanvas::kStrict_SrcRectConstraint,
19*c8dee2aaSAndroid Build Coastguard Worker             SkCanvas::kFast_SrcRectConstraint } ) {
20*c8dee2aaSAndroid Build Coastguard Worker         canvas->drawImageRect(image.get(), SkRect::MakeLTRB(1, 1, 3, 3),
21*c8dee2aaSAndroid Build Coastguard Worker                 SkRect::MakeLTRB(16, 16, 48, 48), sampling, nullptr, constraint);
22*c8dee2aaSAndroid Build Coastguard Worker         sampling = SkSamplingOptions(SkFilterMode::kLinear);
23*c8dee2aaSAndroid Build Coastguard Worker         canvas->translate(80, 0);
24*c8dee2aaSAndroid Build Coastguard Worker     }
25*c8dee2aaSAndroid Build Coastguard Worker }
26*c8dee2aaSAndroid Build Coastguard Worker }  // END FIDDLE
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