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f571cddb33
getGrContext is going away, plus we already have the fully-powered-up GrDirectContext available and we previously weren't using it.
105 lines
3.3 KiB
C++
105 lines
3.3 KiB
C++
// Copyright 2013 The Flutter Authors. All rights reserved.
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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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#include "flutter/shell/platform/android/android_external_texture_gl.h"
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#include <GLES/glext.h>
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#include "third_party/skia/include/gpu/GrBackendSurface.h"
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#include "third_party/skia/include/gpu/GrDirectContext.h"
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namespace flutter {
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AndroidExternalTextureGL::AndroidExternalTextureGL(
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int64_t id,
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const fml::jni::JavaObjectWeakGlobalRef& surface_texture,
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std::shared_ptr<PlatformViewAndroidJNI> jni_facade)
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: Texture(id),
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jni_facade_(jni_facade),
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surface_texture_(surface_texture),
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transform(SkMatrix::I()) {}
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AndroidExternalTextureGL::~AndroidExternalTextureGL() {
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if (state_ == AttachmentState::attached) {
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glDeleteTextures(1, &texture_name_);
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}
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}
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void AndroidExternalTextureGL::OnGrContextCreated() {
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state_ = AttachmentState::uninitialized;
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}
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void AndroidExternalTextureGL::MarkNewFrameAvailable() {
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new_frame_ready_ = true;
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}
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void AndroidExternalTextureGL::Paint(SkCanvas& canvas,
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const SkRect& bounds,
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bool freeze,
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GrDirectContext* context,
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SkFilterQuality filter_quality) {
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if (state_ == AttachmentState::detached) {
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return;
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}
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if (state_ == AttachmentState::uninitialized) {
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glGenTextures(1, &texture_name_);
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Attach(static_cast<jint>(texture_name_));
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state_ = AttachmentState::attached;
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}
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if (!freeze && new_frame_ready_) {
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Update();
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new_frame_ready_ = false;
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}
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GrGLTextureInfo textureInfo = {GL_TEXTURE_EXTERNAL_OES, texture_name_,
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GL_RGBA8_OES};
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GrBackendTexture backendTexture(1, 1, GrMipMapped::kNo, textureInfo);
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sk_sp<SkImage> image = SkImage::MakeFromTexture(
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context, backendTexture, kTopLeft_GrSurfaceOrigin, kRGBA_8888_SkColorType,
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kPremul_SkAlphaType, nullptr);
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if (image) {
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SkAutoCanvasRestore autoRestore(&canvas, true);
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canvas.translate(bounds.x(), bounds.y());
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canvas.scale(bounds.width(), bounds.height());
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if (!transform.isIdentity()) {
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SkMatrix transformAroundCenter(transform);
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transformAroundCenter.preTranslate(-0.5, -0.5);
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transformAroundCenter.postScale(1, -1);
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transformAroundCenter.postTranslate(0.5, 0.5);
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canvas.concat(transformAroundCenter);
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}
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SkPaint paint;
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paint.setFilterQuality(filter_quality);
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canvas.drawImage(image, 0, 0, &paint);
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}
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}
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void AndroidExternalTextureGL::UpdateTransform() {
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jni_facade_->SurfaceTextureGetTransformMatrix(surface_texture_, transform);
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}
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void AndroidExternalTextureGL::OnGrContextDestroyed() {
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if (state_ == AttachmentState::attached) {
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Detach();
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}
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state_ = AttachmentState::detached;
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}
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void AndroidExternalTextureGL::Attach(jint textureName) {
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jni_facade_->SurfaceTextureAttachToGLContext(surface_texture_, textureName);
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}
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void AndroidExternalTextureGL::Update() {
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jni_facade_->SurfaceTextureUpdateTexImage(surface_texture_);
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UpdateTransform();
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}
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void AndroidExternalTextureGL::Detach() {
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jni_facade_->SurfaceTextureDetachFromGLContext(surface_texture_);
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}
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void AndroidExternalTextureGL::OnTextureUnregistered() {}
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} // namespace flutter
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