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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/vr/skia_surface_provider.h"
#include "third_party/skia/include/core/SkCanvas.h"
#include "third_party/skia/include/core/SkSurface.h"
#include "third_party/skia/include/gpu/GpuTypes.h"
#include "third_party/skia/include/gpu/ganesh/GrBackendSurface.h"
#include "third_party/skia/include/gpu/ganesh/GrDirectContext.h"
#include "third_party/skia/include/gpu/ganesh/GrRecordingContext.h"
#include "third_party/skia/include/gpu/ganesh/SkSurfaceGanesh.h"
#include "third_party/skia/include/gpu/ganesh/gl/GrGLBackendSurface.h"
#include "third_party/skia/include/gpu/ganesh/gl/GrGLTypes.h"
#include "ui/gfx/geometry/size.h"
namespace vr {
namespace {
GLint GetTextureIDFromSurface(SkSurface* surface) {
GrBackendTexture backend_texture = SkSurfaces::GetBackendTexture(
surface, SkSurfaces::BackendHandleAccess::kFlushRead);
DCHECK(backend_texture.isValid());
GrGLTextureInfo info;
bool result = GrBackendTextures::GetGLTextureInfo(backend_texture, &info);
DCHECK(result);
DCHECK_NE(info.fID, 0u);
return info.fID;
}
} // namespace
SkiaSurfaceProvider::Texture::Texture(sk_sp<SkSurface> surface)
: texture_id_(GetTextureIDFromSurface(surface.get())),
surface_(std::move(surface)) {}
SkiaSurfaceProvider::Texture::~Texture() = default;
std::unique_ptr<SkiaSurfaceProvider::Texture>
SkiaSurfaceProvider::CreateTextureWithSkiaImpl(
GrDirectContext* gr_context,
const gfx::Size& size,
base::FunctionRef<void(SkCanvas*)> paint) {
auto surface = SkSurfaces::RenderTarget(
gr_context, skgpu::Budgeted::kNo,
SkImageInfo::MakeN32Premul(size.width(), size.height()), 0,
kTopLeft_GrSurfaceOrigin, nullptr);
paint(surface->getCanvas());
gr_context->flush(surface.get());
return std::make_unique<Texture>(std::move(surface));
}
} // namespace vr
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