skia2/gm/crosscontextimage.cpp
Adlai Holler 872a32c58d Add an arg to SkImage::makeSubset to take a direct context
This is part of a larger effort to force users to provide a context
when manipulating GPU images which may be shared, instead of having
images themselves retain powerful context pointers.

Chrome flag landed in Chrome CL 2292800

Bug: skia:10466
Change-Id: Ic530a2c5eb1f4399db899d243ea944760fdf2055
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/300707
Commit-Queue: Adlai Holler <adlai@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
2020-07-13 14:55:47 +00:00

72 lines
2.2 KiB
C++

/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "gm/gm.h"
#include "include/core/SkBitmap.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkData.h"
#include "include/core/SkFilterQuality.h"
#include "include/core/SkImage.h"
#include "include/core/SkPaint.h"
#include "include/core/SkPixmap.h"
#include "include/core/SkRect.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkString.h"
#include "include/core/SkTypes.h"
#include "include/gpu/GrDirectContext.h"
#include "include/gpu/GrRecordingContext.h"
#include "tools/Resources.h"
class GrContext;
class GrRenderTargetContext;
DEF_SIMPLE_GPU_GM_CAN_FAIL(cross_context_image, context, rtc, canvas, errorMsg,
3 * 256 + 40, 256 + 128 + 30) {
sk_sp<SkData> encodedData = GetResourceAsData("images/mandrill_256.png");
if (!encodedData) {
*errorMsg = "Could not load mandrill_256.png. Did you forget to set the resourcePath?";
return skiagm::DrawResult::kFail;
}
auto direct = context->asDirectContext();
if (!direct) {
*errorMsg = "CrossContext image creation requires a direct context.";
return skiagm::DrawResult::kSkip;
}
sk_sp<SkImage> images[3];
images[0] = SkImage::MakeFromEncoded(encodedData);
SkBitmap bmp;
SkPixmap pixmap;
SkAssertResult(images[0]->asLegacyBitmap(&bmp) &&
bmp.peekPixels(&pixmap));
images[1] = SkImage::MakeCrossContextFromPixmap(direct, pixmap, false);
images[2] = SkImage::MakeCrossContextFromPixmap(direct, pixmap, true);
canvas->translate(10, 10);
for (size_t i = 0; i < SK_ARRAY_COUNT(images); ++i) {
canvas->save();
canvas->drawImage(images[i], 0, 0);
canvas->translate(0, 256 + 10);
canvas->drawImage(images[i]->makeSubset(SkIRect::MakeXYWH(64, 64, 128, 128), direct), 0, 0);
canvas->translate(128, 0);
SkPaint paint;
paint.setFilterQuality(kMedium_SkFilterQuality);
canvas->drawImageRect(images[i], SkRect::MakeWH(128, 128), &paint);
canvas->restore();
canvas->translate(256 + 10, 0);
}
return skiagm::DrawResult::kOk;
}