physicalwindow.cc

Linux下比较早的基于命令行的DVD播放器

//
// Copyright (c) 2005 by Istv醤 V醨adi
//
// This file is part of dxr3Player, a DVD player written specifically 
// for the DXR3 (aka Hollywood+) decoder card, but now handles other
// hardware as well. These files contain a (mostly) user-space driver 
// for the Unichrome board found on Via's EPIA motherboards.
//
// The information for implementing this driver has been gathered
// from the following sources:
//
// - The DirectFB Unichrome driver
//   Copyright (c) 2003 Andreas Robinson, All rights reserved.
//
// - Andreas Robinson's MPEG-2 decoder for the Unichrome board.
//   Copyright (c) 2003 Andreas Robinson, All rights reserved.
//
// - Via's Unichrome Framebuffer driver
//   Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
//   Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.


// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

//------------------------------------------------------------------------------

#include "PhysicalWindow.h"

#include "MemoryBlock.h"

#include "util/Painter.h"

#include <cstdio>

//------------------------------------------------------------------------------

using unichrome::PhysicalWindow;

//------------------------------------------------------------------------------

size_t PhysicalWindow::computePitch(size_t width,  size_t pitch)
{
    if (pitch==0) pitch = width * sizeof(uint32_t);
    pitch += 7; pitch &= ~7;
    return pitch;
}

//------------------------------------------------------------------------------

size_t PhysicalWindow::computeHeight(const MemoryBlock& memoryBlock,
                                     size_t width, size_t height,
                                     size_t pitch)
{
    if (height!=0) return height;
    else return memoryBlock.getSize() / computePitch(width, pitch);
}

//------------------------------------------------------------------------------

PhysicalWindow::PhysicalWindow(Unichrome& unichrome, size_t offset,
                               size_t width, size_t height,
                               size_t pitch,
                               size_t x, size_t y) :
    Window(x, y, width, height),
    unichrome(unichrome),
    offset(offset),
    pitch( computePitch(width, pitch) )
{
}

//------------------------------------------------------------------------------

PhysicalWindow::PhysicalWindow(const MemoryBlock& memoryBlock, 
                               size_t width, size_t height,
                               size_t pitch, size_t x, size_t y) :
    Window(x, y, width, computeHeight(memoryBlock, width, height, pitch)),
    unichrome(memoryBlock.getUnichrome()),
    offset(memoryBlock.getOffset()),
    pitch(computePitch(width, pitch))
{
}

//------------------------------------------------------------------------------

void PhysicalWindow::setForeground(uint32_t color)
{
    unichrome.setForeground(color);
}

//------------------------------------------------------------------------------

void PhysicalWindow::setBackground(uint32_t color)
{
    unichrome.setBackground(color);
}

//------------------------------------------------------------------------------

void PhysicalWindow::disableKeying()
{
    unichrome.disableKeying();
}

//------------------------------------------------------------------------------

void PhysicalWindow::enableSourceKeying(bool invert)
{
    unichrome.enableSourceKeying(invert);
}

//------------------------------------------------------------------------------

void PhysicalWindow::setSourceKey(uint32_t color)
{
    unichrome.setSourceKey(color);
}

//------------------------------------------------------------------------------

void PhysicalWindow::setMonoPattern(const uint32_t pattern[2], 
                                    size_t xOffset, size_t yOffset)
{
    unichrome.setMonoPattern(pattern, xOffset, yOffset);
}

//------------------------------------------------------------------------------

void PhysicalWindow::drawLine(size_t x1, size_t y1, size_t x2, size_t y2)
{
    setDestination();

    unichrome.drawLine(x1 + area.getStartX(), y1 + area.getStartY(),
                       x2 + area.getStartX(), y2 + area.getStartY());
}

//------------------------------------------------------------------------------

void PhysicalWindow::fillRectangle(size_t x, size_t y, size_t width, size_t height)
{
    setDestination();

    unichrome.fillRectangle(x + area.getStartX(), y + area.getStartY(),
                            width, height);
}

//------------------------------------------------------------------------------

void PhysicalWindow::blit(size_t x, size_t y,
                          size_t width, size_t height,
                          size_t dx, size_t dy,
                          blitType_t blitType)
{
    setDestination();

    unichrome.blit(x, y, width, height,
                   area.getStartX() + dx,
                   area.getStartY() + dy,
                   blitType);
}

//------------------------------------------------------------------------------

void PhysicalWindow::drawArc(size_t x, size_t y, size_t width, size_t height, 
                             ssize_t x0, ssize_t y0, size_t r1, size_t r2,
                             uint32_t arcColor, uint32_t innerColor, 
                             uint32_t outerColor)
{
    unichrome.flush();
    unichrome.waitGraphicsEngine();

    x += area.getStartX();
    y += area.getStartY();
    x0 += area.getStartX();
    y0 += area.getStartX();

    volatile uint32_t* buffer = 
        reinterpret_cast<volatile uint32_t*>(unichrome.getFrameBuffer() + offset);

    buffer += y * pitch / sizeof(uint32_t) + x;

    Painter::drawArc(buffer, width, pitch / sizeof(uint32_t), height, 
                     x0 - x, y0 - y, r1, r2, 
                     arcColor, innerColor, outerColor);
}

//------------------------------------------------------------------------------

void PhysicalWindow::setSource()
{
    unichrome.setSourceBase(offset);
    unichrome.setSourcePitch(pitch);
}

//------------------------------------------------------------------------------

void PhysicalWindow::setDestination()
{
    unichrome.setDestinationBase(offset);
    unichrome.setDestinationPitch(pitch);
}

//------------------------------------------------------------------------------