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      1 /*
      2  * Copyright (C) 2010 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
     14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
     17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     23  * THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef WKCAImageQueue_h
     27 #define WKCAImageQueue_h
     28 
     29 #if USE(ACCELERATED_COMPOSITING)
     30 
     31 typedef const void * CFTypeRef;
     32 typedef const struct __CFDictionary * CFDictionaryRef;
     33 
     34 #include <stdint.h>
     35 #include <wtf/OwnPtr.h>
     36 
     37 namespace WebCore {
     38 
     39 class WKCAImageQueuePrivate;
     40 
     41 class WKCAImageQueue {
     42 public:
     43     enum Flags {
     44         Async = 1U << 0,
     45         Fill  = 1U << 1,
     46         Protected = 1U << 2,
     47         UseCleanAperture = 1U << 3,
     48         UseAspectRatio = 1U << 4,
     49         LowQualityColor = 1U << 5,
     50     };
     51 
     52     enum ImageType {
     53         Nil = 1,
     54         Surface,
     55         Buffer,
     56         IOSurface,
     57     };
     58 
     59     enum ImageFlags {
     60         Opaque = 1U << 0,
     61         Flush = 1U << 1,
     62         WillFlush = 1U << 2,
     63         Flipped = 1U << 3,
     64         WaitGPU = 1U << 4,
     65     };
     66 
     67     typedef void (*ReleaseCallback)(unsigned int type, uint64_t id, void* info);
     68 
     69     WKCAImageQueue(uint32_t width, uint32_t height, uint32_t capacity);
     70     ~WKCAImageQueue(void);
     71 
     72     size_t collect();
     73 
     74     bool insertImage(double t, unsigned int type, uint64_t id, uint32_t flags, ReleaseCallback release, void* info);
     75     uint64_t registerPixelBuffer(void *data, size_t data_size, size_t rowbytes, size_t width, size_t height, uint32_t pixel_format, CFDictionaryRef attachments, uint32_t flags);
     76 
     77     uint32_t flags() const;
     78     void setFlags(uint32_t mask, uint32_t flags);
     79 
     80     CFTypeRef get();
     81 
     82 private:
     83     WKCAImageQueue(const WKCAImageQueue&);
     84     WKCAImageQueue& operator=(const WKCAImageQueue&);
     85     OwnPtr<WKCAImageQueuePrivate> m_private;
     86 };
     87 
     88 }
     89 
     90 #endif
     91 
     92 #endif
     93