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And #include "BufferUnrotate.h" in BufferUnrotate.cpp for BufferUnrotate() function prototype. clang's -Wmissing-prototypes option identifies global functions that can be made static (because they're only called from one compilation unit) or removed (if they're never called). gfx/2d/BufferUnrotate.cpp:17:6 [-Wmissing-prototypes] no previous prototype for function 'BufferUnrotate' gfx/2d/DrawTargetCairo.cpp:195:6 [-Wmissing-prototypes] no previous prototype for function 'ReleaseData' gfx/2d/DrawTargetCairo.cpp:201:18 [-Wmissing-prototypes] no previous prototype for function 'CopyToImageSurface' gfx/2d/DrawTargetCairo.cpp:239:18 [-Wmissing-prototypes] no previous prototype for function 'GetAsImageSurface' gfx/2d/DrawTargetCairo.cpp:251:18 [-Wmissing-prototypes] no previous prototype for function 'CreateSubImageForData' gfx/2d/DrawTargetCairo.cpp:272:18 [-Wmissing-prototypes] no previous prototype for function 'ExtractSubImage' gfx/2d/DrawTargetCairo.cpp:308:18 [-Wmissing-prototypes] no previous prototype for function 'GetCairoSurfaceForSourceSurface' gfx/2d/DrawTargetRecording.cpp:26:6 [-Wmissing-prototypes] no previous prototype for function 'RecordingSourceSurfaceUserDataFunc' gfx/2d/DrawTargetRecording.cpp:272:6 [-Wmissing-prototypes] no previous prototype for function 'RecordingFontUserDataDestroyFunc' gfx/2d/DrawTargetWrapAndRecord.cpp:26:6 [-Wmissing-prototypes] no previous prototype for function 'WrapAndRecordSourceSurfaceUserDataFunc' gfx/2d/DrawTargetWrapAndRecord.cpp:358:6 [-Wmissing-prototypes] no previous prototype for function 'WrapAndRecordFontUserDataDestroyFunc' gfx/2d/FilterNodeSoftware.cpp:1816:6 [-Wmissing-prototypes] no previous prototype for function 'IsAllZero' gfx/2d/FilterNodeSoftware.cpp:183:37 [-Wmissing-prototypes] no previous prototype for function 'CloneAligned' gfx/2d/MacIOSurface.cpp:442:6 [-Wmissing-prototypes] no previous prototype for function 'MacIOSurfaceBufferDeallocator' gfx/2d/QuartzSupport.mm:38:6 [-Wmissing-prototypes] no previous prototype for function 'cgdata_release_callback' gfx/2d/ScaledFontMac.cpp:191:10 [-Wmissing-prototypes] no previous prototype for function 'CalcTableChecksum' gfx/2d/ScaledFontMac.cpp:224:5 [-Wmissing-prototypes] no previous prototype for function 'maxPow2LessThan' gfx/2d/unittest/TestCairo.cpp:12:6 [-Wmissing-prototypes] no previous prototype for function 'TryCircle' Differential Revision: https://phabricator.services.mozilla.com/D20263 --HG-- extra : rebase_source : b42bce33ed899caeb89e462d99a5cde29a9bb559 extra : intermediate-source : 7923cc86a6394bcd2fb3b7e38f458a5180d31e11 extra : source : 02388f2454e8842d2c023bf9f9fab222d8130093
75 lines
2.4 KiB
C++
75 lines
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "BufferUnrotate.h"
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#include <algorithm> // min & max
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#include <cstdlib>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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namespace mozilla {
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namespace gfx {
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void BufferUnrotate(uint8_t* aBuffer, int aByteWidth, int aHeight,
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int aByteStride, int aXBoundary, int aYBoundary) {
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if (aXBoundary != 0) {
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uint8_t* line = new uint8_t[aByteWidth];
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uint32_t smallStart = 0;
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uint32_t smallLen = aXBoundary;
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uint32_t smallDest = aByteWidth - aXBoundary;
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uint32_t largeStart = aXBoundary;
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uint32_t largeLen = aByteWidth - aXBoundary;
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uint32_t largeDest = 0;
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if (aXBoundary > aByteWidth / 2) {
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smallStart = aXBoundary;
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smallLen = aByteWidth - aXBoundary;
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smallDest = 0;
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largeStart = 0;
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largeLen = aXBoundary;
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largeDest = smallLen;
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}
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for (int y = 0; y < aHeight; y++) {
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int yOffset = y * aByteStride;
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memcpy(line, &aBuffer[yOffset + smallStart], smallLen);
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memmove(&aBuffer[yOffset + largeDest], &aBuffer[yOffset + largeStart],
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largeLen);
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memcpy(&aBuffer[yOffset + smallDest], line, smallLen);
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}
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delete[] line;
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}
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if (aYBoundary != 0) {
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uint32_t smallestHeight = std::min(aHeight - aYBoundary, aYBoundary);
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uint32_t largestHeight = std::max(aHeight - aYBoundary, aYBoundary);
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uint32_t smallOffset = 0;
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uint32_t largeOffset = aYBoundary * aByteStride;
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uint32_t largeDestOffset = 0;
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uint32_t smallDestOffset = largestHeight * aByteStride;
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if (aYBoundary > aHeight / 2) {
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smallOffset = aYBoundary * aByteStride;
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largeOffset = 0;
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largeDestOffset = smallestHeight * aByteStride;
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smallDestOffset = 0;
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}
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uint8_t* smallestSide = new uint8_t[aByteStride * smallestHeight];
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memcpy(smallestSide, &aBuffer[smallOffset], aByteStride * smallestHeight);
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memmove(&aBuffer[largeDestOffset], &aBuffer[largeOffset],
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aByteStride * largestHeight);
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memcpy(&aBuffer[smallDestOffset], smallestSide,
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aByteStride * smallestHeight);
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delete[] smallestSide;
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}
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}
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} // namespace gfx
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} // namespace mozilla
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