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