skia2/docs/examples/Pixmap_computeByteSize.cpp
John Stiles 7bf799956d Reland "Add format-specifier warnings to SkDebugf."
This is a reland of e58831cd95

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>

Bug: skia:12143
Change-Id: Id3c0c21436ebd13899908d5ed5d44c42a0e23921
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/421918
Commit-Queue: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2021-06-25 17:57:43 +00:00

18 lines
731 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=410d14ddc45d272598c5a4e52bb047de
REG_FIDDLE(Pixmap_computeByteSize, 256, 256, true, 0) {
void draw(SkCanvas* canvas) {
SkPixmap pixmap;
for (int width : { 1, 1000, 1000000 } ) {
for (int height: { 1, 1000, 1000000 } ) {
SkImageInfo imageInfo = SkImageInfo::MakeN32(width, height, kPremul_SkAlphaType);
pixmap.reset(imageInfo, nullptr, width * 5);
SkDebugf("width: %7d height: %7d computeByteSize: %13zu\n", width, height,
pixmap.computeByteSize());
}
}
}
} // END FIDDLE