gfx/ycbcr/yuv_convert.h
author Nathan Froyd <froydnj@mozilla.com>
Wed, 07 Oct 2015 16:50:25 -0400
changeset 287061 91d4539e00cecb658604e021675a923c60ef3235
parent 281364 69b07795c5fa8718d7119eb7c0319318edf66d7f
child 328066 c88f2cb8e4fae6764f559c0e43a93edd518102d2
permissions -rw-r--r--
Bug 1207245 - part 6 - rename nsRefPtr<T> to RefPtr<T>; r=ehsan; a=Tomcat The bulk of this commit was generated with a script, executed at the top level of a typical source code checkout. The only non-machine-generated part was modifying MFBT's moz.build to reflect the new naming. # The main substitution. find . -name '*.cpp' -o -name '*.cc' -o -name '*.h' -o -name '*.mm' -o -name '*.idl'| \ xargs perl -p -i -e ' s/nsRefPtr\.h/RefPtr\.h/g; # handle includes s/nsRefPtr ?</RefPtr</g; # handle declarations and variables ' # Handle a special friend declaration in gfx/layers/AtomicRefCountedWithFinalize.h. perl -p -i -e 's/::nsRefPtr;/::RefPtr;/' gfx/layers/AtomicRefCountedWithFinalize.h # Handle nsRefPtr.h itself, a couple places that define constructors # from nsRefPtr, and code generators specially. We do this here, rather # than indiscriminantly s/nsRefPtr/RefPtr/, because that would rename # things like nsRefPtrHashtable. perl -p -i -e 's/nsRefPtr/RefPtr/g' \ mfbt/nsRefPtr.h \ xpcom/glue/nsCOMPtr.h \ xpcom/base/OwningNonNull.h \ ipc/ipdl/ipdl/lower.py \ ipc/ipdl/ipdl/builtin.py \ dom/bindings/Codegen.py \ python/lldbutils/lldbutils/utils.py # In our indiscriminate substitution above, we renamed # nsRefPtrGetterAddRefs, the class behind getter_AddRefs. Fix that up. find . -name '*.cpp' -o -name '*.h' -o -name '*.idl' | \ xargs perl -p -i -e 's/nsRefPtrGetterAddRefs/RefPtrGetterAddRefs/g' if [ -d .git ]; then git mv mfbt/nsRefPtr.h mfbt/RefPtr.h else hg mv mfbt/nsRefPtr.h mfbt/RefPtr.h fi

// Copyright (c) 2010 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.

#ifndef MEDIA_BASE_YUV_CONVERT_H_
#define MEDIA_BASE_YUV_CONVERT_H_

#include "chromium_types.h"

namespace mozilla {

namespace gfx {
 
// Type of YUV surface.
// The value of these enums matter as they are used to shift vertical indices.
enum YUVType {
  YV12 = 0,           // YV12 is half width and half height chroma channels.
  YV16 = 1,           // YV16 is half width and full height chroma channels.
  YV24 = 2            // YV24 is full width and full height chroma channels.
};

// Mirror means flip the image horizontally, as in looking in a mirror.
// Rotate happens after mirroring.
enum Rotate {
  ROTATE_0,           // Rotation off.
  ROTATE_90,          // Rotate clockwise.
  ROTATE_180,         // Rotate upside down.
  ROTATE_270,         // Rotate counter clockwise.
  MIRROR_ROTATE_0,    // Mirror horizontally.
  MIRROR_ROTATE_90,   // Mirror then Rotate clockwise.
  MIRROR_ROTATE_180,  // Mirror vertically.
  MIRROR_ROTATE_270   // Transpose.
};

// Filter affects how scaling looks.
enum ScaleFilter {
  FILTER_NONE = 0,        // No filter (point sampled).
  FILTER_BILINEAR_H = 1,  // Bilinear horizontal filter.
  FILTER_BILINEAR_V = 2,  // Bilinear vertical filter.
  FILTER_BILINEAR = 3     // Bilinear filter.
};

YUVType TypeFromSize(int ywidth, int yheight, int cbcrwidth, int cbcrheight);

// Convert a frame of YUV to 32 bit ARGB.
// Pass in YV16/YV12 depending on source format
void ConvertYCbCrToRGB32(const uint8* yplane,
                         const uint8* uplane,
                         const uint8* vplane,
                         uint8* rgbframe,
                         int pic_x,
                         int pic_y,
                         int pic_width,
                         int pic_height,
                         int ystride,
                         int uvstride,
                         int rgbstride,
                         YUVType yuv_type);

// Scale a frame of YUV to 32 bit ARGB.
// Supports rotation and mirroring.
void ScaleYCbCrToRGB32(const uint8* yplane,
                       const uint8* uplane,
                       const uint8* vplane,
                       uint8* rgbframe,
                       int source_width,
                       int source_height,
                       int width,
                       int height,
                       int ystride,
                       int uvstride,
                       int rgbstride,
                       YUVType yuv_type,
                       Rotate view_rotate,
                       ScaleFilter filter);

} // namespace gfx
} // namespace mozilla
 
#endif  // MEDIA_BASE_YUV_CONVERT_H_