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/* |
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// Copyright (c) 2014 Intel Corporation |
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// |
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// Licensed under the Apache License, Version 2.0 (the "License"); |
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// you may not use this file except in compliance with the License. |
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// You may obtain a copy of the License at |
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// |
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// http://www.apache.org/licenses/LICENSE-2.0 |
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// |
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// Unless required by applicable law or agreed to in writing, software |
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// distributed under the License is distributed on an "AS IS" BASIS, |
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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// See the License for the specific language governing permissions and |
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// limitations under the License. |
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*/ |
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#include <HwcTrace.h> |
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#include <common/GrallocBufferBase.h> |
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#include <DisplayQuery.h> |
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namespace android { |
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namespace intel { |
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GrallocBufferBase::GrallocBufferBase(buffer_handle_t handle) |
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: GraphicBuffer(handle) |
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{ |
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ATRACE("handle = %#x", handle); |
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initBuffer(handle); |
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} |
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void GrallocBufferBase::resetBuffer(buffer_handle_t handle) |
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{ |
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GraphicBuffer::resetBuffer(handle); |
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initBuffer(handle); |
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} |
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void GrallocBufferBase::initBuffer(buffer_handle_t handle) |
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{ |
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// nothing to initialize |
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} |
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void GrallocBufferBase::initStride() |
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{ |
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int yStride, uvStride; |
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// setup stride |
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switch (mFormat) { |
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case HAL_PIXEL_FORMAT_YV12: |
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case HAL_PIXEL_FORMAT_I420: |
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uint32_t yStride_align; |
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yStride_align = DisplayQuery::getOverlayLumaStrideAlignment(mFormat); |
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if (yStride_align > 0) |
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{ |
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yStride = align_to(align_to(mWidth, 32), yStride_align); |
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} |
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else |
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{ |
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yStride = align_to(align_to(mWidth, 32), 64); |
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} |
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uvStride = align_to(yStride >> 1, 64); |
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mStride.yuv.yStride = yStride; |
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mStride.yuv.uvStride = uvStride; |
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break; |
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case HAL_PIXEL_FORMAT_NV12: |
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yStride = align_to(align_to(mWidth, 32), 64); |
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uvStride = yStride; |
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mStride.yuv.yStride = yStride; |
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mStride.yuv.uvStride = uvStride; |
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break; |
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case OMX_INTEL_COLOR_FormatYUV420PackedSemiPlanar: |
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case OMX_INTEL_COLOR_FormatYUV420PackedSemiPlanar_Tiled: |
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yStride = align_to(align_to(mWidth, 32), 64); |
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uvStride = yStride; |
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mStride.yuv.yStride = yStride; |
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mStride.yuv.uvStride = uvStride; |
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break; |
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case HAL_PIXEL_FORMAT_YUY2: |
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case HAL_PIXEL_FORMAT_UYVY: |
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yStride = align_to((align_to(mWidth, 32) << 1), 64); |
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uvStride = 0; |
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mStride.yuv.yStride = yStride; |
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mStride.yuv.uvStride = uvStride; |
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break; |
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default: |
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mStride.rgb.stride = align_to(((mBpp >> 3) * align_to(mWidth, 32)), 64); |
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break; |
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} |
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} |
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} |
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}
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