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// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/platform/graphics/gpu/graphics_context_3d_utils.h"
#include "gpu/command_buffer/client/gles2_interface.h"
#include "skia/ext/texture_handle.h"
#include "third_party/blink/renderer/platform/graphics/web_graphics_context_3d_provider_wrapper.h"
#include "third_party/skia/include/core/SkImage.h"
#include "third_party/skia/include/gpu/GrContext.h"
namespace {
struct GrTextureMailboxReleaseProcData {
GrTexture* gr_texture_;
base::WeakPtr<blink::WebGraphicsContext3DProviderWrapper>
context_provider_wrapper_;
};
void GrTextureMailboxReleaseProc(void* data) {
GrTextureMailboxReleaseProcData* release_proc_data =
static_cast<GrTextureMailboxReleaseProcData*>(data);
if (release_proc_data->context_provider_wrapper_) {
release_proc_data->context_provider_wrapper_->Utils()->RemoveCachedMailbox(
release_proc_data->gr_texture_);
}
delete release_proc_data;
}
} // unnamed namespace
namespace blink {
void GraphicsContext3DUtils::GetMailboxForSkImage(gpu::Mailbox& out_mailbox,
const sk_sp<SkImage>& image,
GLenum filter) {
// This object is owned by context_provider_wrapper_, so that weak ref
// should never be null.
DCHECK(context_provider_wrapper_);
DCHECK(image->isTextureBacked());
GrContext* gr = context_provider_wrapper_->ContextProvider()->GetGrContext();
gpu::gles2::GLES2Interface* gl =
context_provider_wrapper_->ContextProvider()->ContextGL();
DCHECK(gr);
DCHECK(gl);
GrTexture* gr_texture = image->getTexture();
DCHECK(gr == gr_texture->getContext());
auto it = cached_mailboxes_.find(gr_texture);
if (it != cached_mailboxes_.end()) {
out_mailbox = it->value;
} else {
gl->GenMailboxCHROMIUM(out_mailbox.name);
GrTextureMailboxReleaseProcData* release_proc_data =
new GrTextureMailboxReleaseProcData();
release_proc_data->gr_texture_ = gr_texture;
release_proc_data->context_provider_wrapper_ = context_provider_wrapper_;
gr_texture->setRelease(GrTextureMailboxReleaseProc, release_proc_data);
cached_mailboxes_.insert(gr_texture, out_mailbox);
}
GLuint texture_id =
skia::GrBackendObjectToGrGLTextureInfo(image->getTextureHandle(true))
->fID;
gl->BindTexture(GL_TEXTURE_2D, texture_id);
gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter);
gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter);
gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
gl->BindTexture(GL_TEXTURE_2D, 0);
gl->ProduceTextureDirectCHROMIUM(texture_id, out_mailbox.name);
image->getTexture()->textureParamsModified();
}
void GraphicsContext3DUtils::RemoveCachedMailbox(GrTexture* gr_texture) {
cached_mailboxes_.erase(gr_texture);
}
} // namespace blink
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