7ac9b5fdb6
These function the same as the already existing SkSurface APIs. Bug: skia:10431 Change-Id: I4f1e842d8d4b72ee27bae5f8a85e499e130d420c Reviewed-on: https://skia-review.googlesource.com/c/skia/+/299281 Reviewed-by: Brian Osman <brianosman@google.com> Reviewed-by: Greg Daniel <egdaniel@google.com> Commit-Queue: Brian Salomon <bsalomon@google.com>
84 lines
3.0 KiB
C++
84 lines
3.0 KiB
C++
/*
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* Copyright 2020 Google LLC
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "tools/gpu/BackendTextureImageFactory.h"
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#include "include/core/SkImage.h"
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#include "include/core/SkPixmap.h"
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#include "include/gpu/GrBackendSurface.h"
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#include "include/gpu/GrContext.h"
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#include "src/core/SkAutoPixmapStorage.h"
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namespace {
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class ManagedBackendTexture : public SkNVRefCnt<ManagedBackendTexture> {
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public:
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~ManagedBackendTexture() {
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if (fContext && fTexture.isValid()) {
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fContext->submit(true);
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fContext->deleteBackendTexture(fTexture);
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}
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}
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static void Proc(void* context) { static_cast<ManagedBackendTexture*>(context)->unref(); }
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template <typename... Args>
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static sk_sp<ManagedBackendTexture> Make(GrContext* context, Args&&... args) {
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sk_sp<ManagedBackendTexture> mbet(new ManagedBackendTexture);
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mbet->fContext = context;
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mbet->fTexture = context->createBackendTexture(std::forward<Args>(args)...,
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Proc,
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mbet->refAndPassAsContext());
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return mbet;
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}
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const GrBackendTexture& texture() { return fTexture; }
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void* refAndPassAsContext() {
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this->ref();
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return static_cast<void*>(this);
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}
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private:
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ManagedBackendTexture() = default;
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GrContext* fContext = nullptr;
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GrBackendTexture fTexture;
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};
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} // namespace
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namespace sk_gpu_test {
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sk_sp<SkImage> MakeBackendTextureImage(GrContext* context,
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const SkPixmap& pixmap,
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GrRenderable renderable,
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GrSurfaceOrigin origin) {
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const SkPixmap* src = &pixmap;
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SkAutoPixmapStorage temp;
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if (origin == kBottomLeft_GrSurfaceOrigin) {
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temp.alloc(src->info());
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auto s = static_cast<const char*>(src->addr(0, pixmap.height() - 1));
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auto d = static_cast<char*>(temp.writable_addr(0, 0));
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for (int y = 0; y < temp.height(); ++y, s -= pixmap.rowBytes(), d += temp.rowBytes()) {
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std::copy_n(s, temp.info().minRowBytes(), d);
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}
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src = &temp;
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}
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auto mbet = ManagedBackendTexture::Make(context, src, 1, renderable, GrProtected::kNo);
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auto image = SkImage::MakeFromTexture(context, mbet->texture(), origin, src->colorType(),
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src->alphaType(), src->refColorSpace(),
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ManagedBackendTexture::Proc, mbet->refAndPassAsContext());
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// We currently have an issue where depending on how MakeFromTexture fails it may not
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// call the release proc (to be fixed soon, crbug.com/1097484). For now we use this hack
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// to see if it failed without calling Proc.
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if (!image) {
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context->submit(true);
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if (!mbet->unique()) {
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ManagedBackendTexture::Proc(mbet.get());
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}
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}
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return image;
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}
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} // namespace sk_gpu_test
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