2015-05-23 14:37:03 +02:00
|
|
|
/*
|
|
|
|
* Copyright (c) 2015 ARM Limited
|
|
|
|
* All rights reserved
|
|
|
|
*
|
|
|
|
* The license below extends only to copyright in the software and shall
|
|
|
|
* not be construed as granting a license to any other intellectual
|
|
|
|
* property including but not limited to intellectual property relating
|
|
|
|
* to a hardware implementation of the functionality of the software
|
|
|
|
* licensed hereunder. You may use the software subject to the license
|
|
|
|
* terms below provided that you ensure that this notice is replicated
|
|
|
|
* unmodified and in its entirety in all distributions of the software,
|
|
|
|
* modified or unmodified, in source code or in binary form.
|
|
|
|
*
|
|
|
|
* Redistribution and use in source and binary forms, with or without
|
|
|
|
* modification, are permitted provided that the following conditions are
|
|
|
|
* met: redistributions of source code must retain the above copyright
|
|
|
|
* notice, this list of conditions and the following disclaimer;
|
|
|
|
* redistributions in binary form must reproduce the above copyright
|
|
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
|
|
* documentation and/or other materials provided with the distribution;
|
|
|
|
* neither the name of the copyright holders nor the names of its
|
|
|
|
* contributors may be used to endorse or promote products derived from
|
|
|
|
* this software without specific prior written permission.
|
|
|
|
*
|
|
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
|
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
*
|
|
|
|
* Authors: Andreas Sandberg
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include "base/framebuffer.hh"
|
|
|
|
|
|
|
|
#include <zlib.h>
|
|
|
|
|
|
|
|
#include <cassert>
|
|
|
|
|
|
|
|
#include "base/bitfield.hh"
|
|
|
|
|
|
|
|
const PixelConverter PixelConverter::rgba8888_le(4, 0, 8, 16, 8, 8, 8);
|
|
|
|
const PixelConverter PixelConverter::rgba8888_be(4, 0, 8, 16, 8, 8, 8,
|
|
|
|
BigEndianByteOrder);
|
|
|
|
const PixelConverter PixelConverter::rgb565_le(2, 0, 5, 11, 5, 6, 5);
|
|
|
|
const PixelConverter PixelConverter::rgb565_be(2, 0, 5, 11, 5, 6, 5,
|
|
|
|
BigEndianByteOrder);
|
|
|
|
|
|
|
|
const FrameBuffer FrameBuffer::dummy(320, 240);
|
|
|
|
|
|
|
|
PixelConverter::PixelConverter(unsigned _length,
|
|
|
|
unsigned ro, unsigned go, unsigned bo,
|
|
|
|
unsigned rw, unsigned gw, unsigned bw,
|
|
|
|
ByteOrder _byte_order)
|
|
|
|
: length(_length),
|
|
|
|
depth(rw + gw + bw),
|
|
|
|
byte_order(_byte_order),
|
|
|
|
ch_r(ro, rw),
|
|
|
|
ch_g(go, gw),
|
|
|
|
ch_b(bo, bw)
|
|
|
|
{
|
|
|
|
assert(length > 1);
|
|
|
|
}
|
|
|
|
|
|
|
|
PixelConverter::Channel::Channel(unsigned _offset, unsigned width)
|
|
|
|
: offset(_offset),
|
|
|
|
mask(::mask(width)),
|
|
|
|
factor(255.0 / mask)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
uint32_t
|
|
|
|
PixelConverter::readWord(const uint8_t *p) const
|
|
|
|
{
|
|
|
|
uint32_t word(0);
|
|
|
|
|
|
|
|
if (byte_order == LittleEndianByteOrder) {
|
|
|
|
for (int i = 0; i < length; ++i)
|
|
|
|
word |= p[i] << (8 * i);
|
|
|
|
} else {
|
|
|
|
for (int i = 0; i < length; ++i)
|
|
|
|
word |= p[i] << (8 * (length - i - 1));
|
|
|
|
}
|
|
|
|
|
|
|
|
return word;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
PixelConverter::writeWord(uint8_t *p, uint32_t word) const
|
|
|
|
{
|
|
|
|
if (byte_order == LittleEndianByteOrder) {
|
|
|
|
for (int i = 0; i < length; ++i)
|
|
|
|
p[i] = (word >> (8 * i)) & 0xFF;
|
|
|
|
} else {
|
|
|
|
for (int i = 0; i < length; ++i)
|
|
|
|
p[i] = (word >> (8 * (length - i - 1))) & 0xFF;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FrameBuffer::FrameBuffer(unsigned width, unsigned height)
|
|
|
|
: pixels(width * height),
|
|
|
|
_width(width), _height(height)
|
|
|
|
{
|
|
|
|
clear();
|
|
|
|
}
|
|
|
|
|
|
|
|
FrameBuffer::FrameBuffer()
|
|
|
|
: _width(0), _height(0)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
FrameBuffer::~FrameBuffer()
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
2015-07-07 10:51:04 +02:00
|
|
|
|
|
|
|
void
|
|
|
|
FrameBuffer::serialize(CheckpointOut &cp) const
|
|
|
|
{
|
|
|
|
SERIALIZE_SCALAR(_width);
|
|
|
|
SERIALIZE_SCALAR(_height);
|
|
|
|
SERIALIZE_CONTAINER(pixels);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
FrameBuffer::unserialize(CheckpointIn &cp)
|
|
|
|
{
|
|
|
|
UNSERIALIZE_SCALAR(_width);
|
|
|
|
UNSERIALIZE_SCALAR(_height);
|
|
|
|
UNSERIALIZE_CONTAINER(pixels);
|
|
|
|
}
|
|
|
|
|
2015-05-23 14:37:03 +02:00
|
|
|
void
|
|
|
|
FrameBuffer::resize(unsigned width, unsigned height)
|
|
|
|
{
|
|
|
|
_width = width;
|
|
|
|
_height = height;
|
|
|
|
|
|
|
|
pixels.resize(width * height);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
FrameBuffer::fill(const Pixel &pixel)
|
|
|
|
{
|
|
|
|
for (auto &p : pixels)
|
|
|
|
p = pixel;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
FrameBuffer::clear()
|
|
|
|
{
|
|
|
|
static const Pixel black(0, 0, 0);
|
|
|
|
|
|
|
|
fill(black);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
FrameBuffer::copyIn(const uint8_t *fb, const PixelConverter &conv)
|
|
|
|
{
|
|
|
|
for (auto &p : pixels) {
|
|
|
|
p = conv.toPixel(fb);
|
|
|
|
fb += conv.length;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
FrameBuffer::copyOut(uint8_t *fb, const PixelConverter &conv) const
|
|
|
|
{
|
|
|
|
for (auto &p : pixels) {
|
|
|
|
conv.fromPixel(fb, p);
|
|
|
|
fb += conv.length;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
uint64_t
|
|
|
|
FrameBuffer::getHash() const
|
|
|
|
{
|
|
|
|
return adler32(0UL,
|
|
|
|
reinterpret_cast<const Bytef *>(pixels.data()),
|
|
|
|
area() * sizeof(Pixel));
|
|
|
|
}
|