skia2/docs/examples/Matrix_preConcat.cpp

// Copyright 2019 Google LLC.
// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
#include "tools/fiddle/examples.h"
// HASH=b07e62298e7b0ab5683db199faffceb2
REG_FIDDLE(Matrix_preConcat, 256, 256, false, 3) {
void draw(SkCanvas* canvas) {
    SkMatrix matrix, matrix2;
    SkPoint bitmapBounds[4], perspect[4] = {{50, 10}, {180, 40}, {236, 176}, {10, 206}};
    SkRect::Make(source.bounds()).toQuad(bitmapBounds);
    matrix.setPolyToPoly(bitmapBounds, perspect, 4);
    matrix2.setPolyToPoly(perspect, bitmapBounds, 4);
    matrix.preConcat(matrix2);
    canvas->concat(matrix);
    canvas->drawBitmap(source, 0, 0);
}
}  // END FIDDLE
Revert "Revert "Compile all fiddle examples locally"" This reverts commit 37575bf3cad759b4703b2021d3fc80bb8eded60f. Change-Id: Ia31abbd4906ddeed406f3da1128bc4d4177abf24 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/201603 Reviewed-by: Hal Canary <halcanary@google.com> Commit-Queue: Hal Canary <halcanary@google.com> 2019-03-15 18:22:51 +00:00			`// Copyright 2019 Google LLC.`
			`// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.`
rewrite includes to not need so much -Ifoo Current strategy: everything from the top Things to look at first are the manual changes: - added tools/rewrite_includes.py - removed -Idirectives from BUILD.gn - various compile.sh simplifications - tweak tools/embed_resources.py - update gn/find_headers.py to write paths from the top - update gn/gn_to_bp.py SkUserConfig.h layout so that #include "include/config/SkUserConfig.h" always gets the header we want. No-Presubmit: true Change-Id: I73a4b181654e0e38d229bc456c0d0854bae3363e Reviewed-on: https://skia-review.googlesource.com/c/skia/+/209706 Commit-Queue: Mike Klein <mtklein@google.com> Reviewed-by: Hal Canary <halcanary@google.com> Reviewed-by: Brian Osman <brianosman@google.com> Reviewed-by: Florin Malita <fmalita@chromium.org> 2019-04-23 17:05:21 +00:00			`#include "tools/fiddle/examples.h"`
Revert "Revert "Compile all fiddle examples locally"" This reverts commit 37575bf3cad759b4703b2021d3fc80bb8eded60f. Change-Id: Ia31abbd4906ddeed406f3da1128bc4d4177abf24 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/201603 Reviewed-by: Hal Canary <halcanary@google.com> Commit-Queue: Hal Canary <halcanary@google.com> 2019-03-15 18:22:51 +00:00			`// HASH=b07e62298e7b0ab5683db199faffceb2`
Docs: Give documentation examples better names These names come from the bookmaker generated md files. Also, delete ducplicated and empty examples. A later CL will re-name the cpp files. Change-Id: Ie365b9cc1cc705d010c674b9988b32c8307a0455 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/201609 Commit-Queue: Hal Canary <halcanary@google.com> Reviewed-by: Hal Canary <halcanary@google.com> 2019-03-18 20:06:34 +00:00			`REG_FIDDLE(Matrix_preConcat, 256, 256, false, 3) {`
Revert "Revert "Compile all fiddle examples locally"" This reverts commit 37575bf3cad759b4703b2021d3fc80bb8eded60f. Change-Id: Ia31abbd4906ddeed406f3da1128bc4d4177abf24 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/201603 Reviewed-by: Hal Canary <halcanary@google.com> Commit-Queue: Hal Canary <halcanary@google.com> 2019-03-15 18:22:51 +00:00			`void draw(SkCanvas* canvas) {`
			`SkMatrix matrix, matrix2;`
			`SkPoint bitmapBounds[4], perspect[4] = {{50, 10}, {180, 40}, {236, 176}, {10, 206}};`
			`SkRect::Make(source.bounds()).toQuad(bitmapBounds);`
			`matrix.setPolyToPoly(bitmapBounds, perspect, 4);`
			`matrix2.setPolyToPoly(perspect, bitmapBounds, 4);`
			`matrix.preConcat(matrix2);`
			`canvas->concat(matrix);`
			`canvas->drawBitmap(source, 0, 0);`
			`}`
			`} // END FIDDLE`