skia2/docs/examples/Surface_MakeRasterDirectReleaseProc.cpp
Mike Klein c0bd9f9fe5 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>
2019-04-24 16:27:11 +00:00

34 lines
1.3 KiB
C++

// 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=8e6530b26ab4096a9a91cfaadda1c568
REG_FIDDLE(Surface_MakeRasterDirectReleaseProc, 256, 256, true, 0) {
static void release_direct_surface_storage(void* pixels, void* context) {
if (pixels == context) {
SkDebugf("expected release context\n");
}
sk_free(pixels);
}
void draw(SkCanvas* ) {
SkImageInfo info = SkImageInfo::MakeN32Premul(3, 3);
const size_t rowBytes = info.minRowBytes();
void* pixels = sk_malloc_throw(info.computeByteSize(rowBytes));
sk_sp<SkSurface> surface(SkSurface::MakeRasterDirectReleaseProc(info, pixels, rowBytes,
release_direct_surface_storage, pixels));
SkCanvas* canvas = surface->getCanvas();
canvas->clear(SK_ColorWHITE);
SkPMColor* colorPtr = (SkPMColor*) pixels;
SkPMColor pmWhite = colorPtr[0];
SkPaint paint;
canvas->drawPoint(1, 1, paint);
canvas->flush(); // ensure that point was drawn
for (int y = 0; y < info.height(); ++y) {
for (int x = 0; x < info.width(); ++x) {
SkDebugf("%c", *colorPtr++ == pmWhite ? '-' : 'x');
}
SkDebugf("\n");
}
}
} // END FIDDLE