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// Copyright (c) 2013 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 "gpu/skia_bindings/grcontext_for_gles2_interface.h"
#include <stddef.h>
#include <string.h>
#include <utility>
#include "base/lazy_instance.h"
#include "base/macros.h"
#include "base/system/sys_info.h"
#include "base/trace_event/trace_event.h"
#include "gpu/command_buffer/client/gles2_interface.h"
#include "gpu/command_buffer/common/capabilities.h"
#include "gpu/skia_bindings/gl_bindings_skia_cmd_buffer.h"
#include "gpu/skia_bindings/gles2_implementation_with_grcontext_support.h"
#include "third_party/skia/include/gpu/GrContext.h"
#include "third_party/skia/include/gpu/GrContextOptions.h"
#include "third_party/skia/include/gpu/gl/GrGLInterface.h"
namespace skia_bindings {
GrContextForGLES2Interface::GrContextForGLES2Interface(
gpu::gles2::GLES2Interface* gl,
gpu::ContextSupport* context_support,
const gpu::Capabilities& capabilities,
size_t max_resource_cache_bytes,
size_t max_glyph_cache_texture_bytes)
: context_support_(context_support) {
// The limit of the number of GPU resources we hold in the GrContext's
// GPU cache.
static const int kMaxGaneshResourceCacheCount = 16384;
GrContextOptions options;
options.fGlyphCacheTextureMaximumBytes = max_glyph_cache_texture_bytes;
options.fAvoidStencilBuffers = capabilities.avoid_stencil_buffers;
options.fAllowPathMaskCaching = false;
options.fSharpenMipmappedTextures = true;
// TODO(csmartdalton): enable internal multisampling after the related Skia
// rolls are in.
options.fInternalMultisampleCount = 0;
sk_sp<GrGLInterface> interface(
skia_bindings::CreateGLES2InterfaceBindings(gl, context_support));
gr_context_ = GrContext::MakeGL(std::move(interface), options);
if (gr_context_) {
gr_context_->setResourceCacheLimits(kMaxGaneshResourceCacheCount,
max_resource_cache_bytes);
context_support_->SetGrContext(gr_context_.get());
}
}
GrContextForGLES2Interface::~GrContextForGLES2Interface() {
// At this point the GLES2Interface is going to be destroyed, so have
// the GrContext clean up and not try to use it anymore.
if (gr_context_) {
gr_context_->releaseResourcesAndAbandonContext();
context_support_->SetGrContext(nullptr);
}
}
void GrContextForGLES2Interface::OnLostContext() {
if (gr_context_)
gr_context_->abandonContext();
}
void GrContextForGLES2Interface::FreeGpuResources() {
if (gr_context_) {
TRACE_EVENT_INSTANT0("gpu", "GrContext::freeGpuResources",
TRACE_EVENT_SCOPE_THREAD);
gr_context_->freeGpuResources();
}
}
GrContext* GrContextForGLES2Interface::get() {
return gr_context_.get();
}
} // namespace skia_bindings
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