skia2/docs/examples/Pixmap_addr.cpp
Tyler Denniston 283dba5785 Revert "Add format-specifier warnings to SkDebugf."
This reverts commit e58831cd95.

Reason for revert: looks like breaking a few build bots

Original change's description:
> Add format-specifier warnings to SkDebugf.
>
> This CL fixes up many existing format-specifier violations in Skia.
> Note that GCC has a warning for formatting nothing, so existing calls to
> `SkDebugf("")` have been removed, or replaced with `SkDebugf("%s", "")`.
> These were apparently meant to be used as a place to set a breakpoint.
>
> Some of our clients also use SkDebug with bad format specifiers, so this
> check is currently only enabled when SKIA_IMPLEMENTATION is true.
>
> Change-Id: I8177a1298a624c6936adc24e0d8f481362a356d0
> Bug: skia:12143
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/420902
> Auto-Submit: John Stiles <johnstiles@google.com>
> Commit-Queue: Brian Osman <brianosman@google.com>
> Reviewed-by: Brian Osman <brianosman@google.com>

TBR=brianosman@google.com,ethannicholas@google.com,johnstiles@google.com

Change-Id: I07848c1bf8992925c9498e916744d0840355a077
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:12143
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/421917
Reviewed-by: Tyler Denniston <tdenniston@google.com>
Commit-Queue: Tyler Denniston <tdenniston@google.com>
2021-06-25 13:33:10 +00:00

19 lines
817 B
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=17bcabaaee2dbb7beba562e9ca50b55e
REG_FIDDLE(Pixmap_addr, 256, 256, true, 3) {
void draw(SkCanvas* canvas) {
std::vector<int32_t> pixels;
pixels.resize(image->height() * image->width() * 4);
SkPixmap pixmap(SkImageInfo::Make(image->width(), image->height(), kN32_SkColorType,
image->alphaType()), (const void*) &pixels.front(), image->width() * 4);
image->readPixels(nullptr, pixmap, 0, 0);
SkDebugf("pixels address: 0x%llx\n", pixmap.addr());
SkPixmap inset;
if (pixmap.extractSubset(&inset, {128, 128, 512, 512})) {
SkDebugf("inset address: 0x%llx\n", inset.addr());
}
}
} // END FIDDLE