mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-24 10:45:42 +00:00
6da90eb0b7
Backed out changeset d0ab25c226a7 (bug 1551088) Backed out changeset 9ef391e20fa6 (bug 1551088) Backed out changeset 3e6f25b21f8c (bug 1551088) Backed out changeset 5d72c8de4daf (bug 1551088) Backed out changeset f77c43bcc75b (bug 1551088) Backed out changeset 9e954d6765de (bug 1551088) Backed out changeset d90a571e581f (bug 1551088) Backed out changeset 25a5f5563e9d (bug 1551088) Backed out changeset bed9c93eeb2d (bug 1551088)
99 lines
3.0 KiB
C++
99 lines
3.0 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "SurfacePipe.h"
|
|
|
|
#include <algorithm> // for min
|
|
|
|
#include "Decoder.h"
|
|
|
|
namespace mozilla {
|
|
namespace image {
|
|
|
|
using namespace gfx;
|
|
|
|
using std::min;
|
|
|
|
Maybe<SurfaceInvalidRect> AbstractSurfaceSink::TakeInvalidRect() {
|
|
if (mInvalidRect.IsEmpty()) {
|
|
return Nothing();
|
|
}
|
|
|
|
SurfaceInvalidRect invalidRect;
|
|
invalidRect.mInputSpaceRect = invalidRect.mOutputSpaceRect = mInvalidRect;
|
|
|
|
// Forget about the invalid rect we're returning.
|
|
mInvalidRect = IntRect();
|
|
|
|
return Some(invalidRect);
|
|
}
|
|
|
|
uint8_t* AbstractSurfaceSink::DoResetToFirstRow() {
|
|
mRow = 0;
|
|
return GetRowPointer();
|
|
}
|
|
|
|
uint8_t* AbstractSurfaceSink::DoAdvanceRow() {
|
|
if (mRow >= uint32_t(InputSize().height)) {
|
|
return nullptr;
|
|
}
|
|
|
|
// If we're vertically flipping the output, we need to flip the invalid rect.
|
|
// Since we're dealing with an axis-aligned rect, only the y coordinate needs
|
|
// to change.
|
|
int32_t invalidY = mFlipVertically ? InputSize().height - (mRow + 1) : mRow;
|
|
mInvalidRect.UnionRect(mInvalidRect,
|
|
IntRect(0, invalidY, InputSize().width, 1));
|
|
|
|
mRow = min(uint32_t(InputSize().height), mRow + 1);
|
|
|
|
return mRow < uint32_t(InputSize().height) ? GetRowPointer() : nullptr;
|
|
}
|
|
|
|
nsresult SurfaceSink::Configure(const SurfaceConfig& aConfig) {
|
|
IntSize surfaceSize = aConfig.mOutputSize;
|
|
|
|
// Allocate the frame.
|
|
// XXX(seth): Once every Decoder subclass uses SurfacePipe, we probably want
|
|
// to allocate the frame directly here and get rid of Decoder::AllocateFrame
|
|
// altogether.
|
|
nsresult rv = aConfig.mDecoder->AllocateFrame(surfaceSize, aConfig.mFormat,
|
|
aConfig.mAnimParams);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
|
|
mImageData = aConfig.mDecoder->mImageData;
|
|
mImageDataLength = aConfig.mDecoder->mImageDataLength;
|
|
mFlipVertically = aConfig.mFlipVertically;
|
|
|
|
MOZ_ASSERT(mImageData);
|
|
MOZ_ASSERT(uint64_t(mImageDataLength) == uint64_t(surfaceSize.width) *
|
|
uint64_t(surfaceSize.height) *
|
|
sizeof(uint32_t));
|
|
|
|
ConfigureFilter(surfaceSize, sizeof(uint32_t));
|
|
return NS_OK;
|
|
}
|
|
|
|
uint8_t* SurfaceSink::GetRowPointer() const {
|
|
// If we're flipping vertically, reverse the order in which we traverse the
|
|
// rows.
|
|
uint32_t row = mFlipVertically ? InputSize().height - (mRow + 1) : mRow;
|
|
|
|
uint8_t* rowPtr = mImageData + row * InputSize().width * sizeof(uint32_t);
|
|
|
|
MOZ_ASSERT(rowPtr >= mImageData);
|
|
MOZ_ASSERT(rowPtr < mImageData + mImageDataLength);
|
|
MOZ_ASSERT(rowPtr + InputSize().width * sizeof(uint32_t) <=
|
|
mImageData + mImageDataLength);
|
|
|
|
return rowPtr;
|
|
}
|
|
|
|
} // namespace image
|
|
} // namespace mozilla
|