// Copyright 2016 The SwiftShader Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "FrameBufferOSX.hpp"
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#include "System/Debug.hpp"
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#include <EGL/egl.h>
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#import <QuartzCore/QuartzCore.h>
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namespace sw {
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FrameBufferOSX::FrameBufferOSX(CALayer* layer, int width, int height)
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: FrameBuffer(width, height, false, false), width(width), height(height),
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layer(layer), buffer(nullptr), provider(nullptr), currentImage(nullptr)
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{
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format = sw::FORMAT_X8B8G8R8;
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int bufferSize = width * height * 4 * sizeof(uint8_t);
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buffer = new uint8_t[bufferSize];
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provider = CGDataProviderCreateWithData(nullptr, buffer, bufferSize, nullptr);
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colorspace = CGColorSpaceCreateDeviceRGB();
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}
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FrameBufferOSX::~FrameBufferOSX()
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{
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//[CATransaction begin];
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//[layer setContents:nullptr];
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//[CATransaction commit];
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CGImageRelease(currentImage);
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CGColorSpaceRelease(colorspace);
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CGDataProviderRelease(provider);
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delete[] buffer;
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}
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void FrameBufferOSX::flip(sw::Surface *source)
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{
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blit(source, nullptr, nullptr);
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}
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void FrameBufferOSX::blit(sw::Surface *source, const Rect *sourceRect, const Rect *destRect)
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{
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copy(source);
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int bytesPerRow = width * 4 * sizeof(uint8_t);
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CGImageRef image = CGImageCreate(width, height, 8, 32, bytesPerRow, colorspace, kCGBitmapByteOrder32Big, provider, nullptr, false, kCGRenderingIntentDefault);
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[CATransaction begin];
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[layer setContents:(id)image];
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[CATransaction commit];
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[CATransaction flush];
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if(currentImage)
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{
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CGImageRelease(currentImage);
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}
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currentImage = image;
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}
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void *FrameBufferOSX::lock()
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{
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stride = width * 4 * sizeof(uint8_t);
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framebuffer = buffer;
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return framebuffer;
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};
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void FrameBufferOSX::unlock()
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{
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framebuffer = nullptr;
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};
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}
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sw::FrameBuffer *createFrameBuffer(void *display, EGLNativeWindowType nativeWindow, int width, int height)
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{
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NSObject *window = reinterpret_cast<NSObject*>(nativeWindow);
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CALayer *layer = nullptr;
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if([window isKindOfClass:[NSView class]])
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{
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NSView *view = reinterpret_cast<NSView*>(window);
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[view setWantsLayer:YES];
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layer = [view layer];
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}
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else if([window isKindOfClass:[CALayer class]])
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{
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layer = reinterpret_cast<CALayer*>(window);
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}
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else ASSERT(0);
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return new sw::FrameBufferOSX(layer, width, height);
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}
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