blob: a75711c2b4441f18877376a686da49d31f501398 [file] [log] [blame]
// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#import "flutter/shell/platform/darwin/graphics/FlutterDarwinContextMetalImpeller.h"
#include "flutter/common/graphics/persistent_cache.h"
#include "flutter/fml/logging.h"
#include "flutter/impeller/entity/mtl/entity_shaders.h"
#include "flutter/impeller/renderer/backend/metal/context_mtl.h"
#include "flutter/shell/common/context_options.h"
#import "flutter/shell/platform/darwin/common/framework/Headers/FlutterMacros.h"
FLUTTER_ASSERT_ARC
static std::shared_ptr<impeller::ContextMTL> CreateImpellerContext() {
std::vector<std::shared_ptr<fml::Mapping>> shader_mappings = {
std::make_shared<fml::NonOwnedMapping>(impeller_entity_shaders_data,
impeller_entity_shaders_length),
};
auto context = impeller::ContextMTL::Create(shader_mappings, "Impeller Library");
if (!context) {
FML_LOG(ERROR) << "Could not create Metal Impeller Context.";
return nullptr;
}
FML_LOG(ERROR) << "Using the Impeller rendering backend.";
return context;
}
@implementation FlutterDarwinContextMetalImpeller
- (instancetype)init {
self = [super init];
if (self != nil) {
_context = CreateImpellerContext();
id<MTLDevice> device = _context->GetMTLDevice();
if (!device) {
FML_DLOG(ERROR) << "Could not acquire Metal device.";
return nil;
}
CVMetalTextureCacheRef textureCache;
CVReturn cvReturn = CVMetalTextureCacheCreate(kCFAllocatorDefault, // allocator
nil, // cache attributes (nil default)
device, // metal device
nil, // texture attributes (nil default)
&textureCache // [out] cache
);
if (cvReturn != kCVReturnSuccess) {
FML_DLOG(ERROR) << "Could not create Metal texture cache.";
return nil;
}
_textureCache.Reset(textureCache);
}
return self;
}
- (FlutterDarwinExternalTextureMetal*)
createExternalTextureWithIdentifier:(int64_t)textureID
texture:(NSObject<FlutterTexture>*)texture {
return [[FlutterDarwinExternalTextureMetal alloc] initWithTextureCache:_textureCache
textureID:textureID
texture:texture
enableImpeller:YES];
}
@end