2011-04-27 10:05:43 +00:00
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/****************************************************************************
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**
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2012-01-05 04:03:39 +00:00
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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2012-01-20 03:06:31 +00:00
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** Contact: http://www.qt-project.org/
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2011-04-27 10:05:43 +00:00
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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** the names of its contributors may be used to endorse or promote
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** products derived from this software without specific prior written
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** permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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2012-01-24 06:17:24 +00:00
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**
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2011-04-27 10:05:43 +00:00
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <stdlib.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <fcntl.h>
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#include <linux/fb.h>
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#include <linux/kd.h>
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#include <sys/mman.h>
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#include <sys/ioctl.h>
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#include <sys/time.h>
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#include <string.h>
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#include <errno.h>
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struct fb_var_screeninfo vinfo;
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struct fb_fix_screeninfo finfo;
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char *frameBuffer = 0;
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int fbFd = 0;
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int ttyFd = 0;
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void printFixedInfo()
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{
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printf("Fixed screen info:\n"
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"\tid: %s\n"
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"\tsmem_start: 0x%lx\n"
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"\tsmem_len: %d\n"
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"\ttype: %d\n"
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"\ttype_aux: %d\n"
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"\tvisual: %d\n"
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"\txpanstep: %d\n"
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"\typanstep: %d\n"
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"\tywrapstep: %d\n"
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"\tline_length: %d\n"
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"\tmmio_start: 0x%lx\n"
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"\tmmio_len: %d\n"
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"\taccel: %d\n"
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"\n",
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finfo.id, finfo.smem_start, finfo.smem_len, finfo.type,
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finfo.type_aux, finfo.visual, finfo.xpanstep, finfo.ypanstep,
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finfo.ywrapstep, finfo.line_length, finfo.mmio_start,
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finfo.mmio_len, finfo.accel);
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}
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void printVariableInfo()
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{
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printf("Variable screen info:\n"
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"\txres: %d\n"
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"\tyres: %d\n"
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"\txres_virtual: %d\n"
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"\tyres_virtual: %d\n"
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"\tyoffset: %d\n"
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"\txoffset: %d\n"
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"\tbits_per_pixel: %d\n"
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"\tgrayscale: %d\n"
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"\tred: offset: %2d, length: %2d, msb_right: %2d\n"
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"\tgreen: offset: %2d, length: %2d, msb_right: %2d\n"
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"\tblue: offset: %2d, length: %2d, msb_right: %2d\n"
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"\ttransp: offset: %2d, length: %2d, msb_right: %2d\n"
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"\tnonstd: %d\n"
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"\tactivate: %d\n"
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"\theight: %d\n"
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"\twidth: %d\n"
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"\taccel_flags: 0x%x\n"
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"\tpixclock: %d\n"
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"\tleft_margin: %d\n"
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"\tright_margin: %d\n"
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"\tupper_margin: %d\n"
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"\tlower_margin: %d\n"
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"\thsync_len: %d\n"
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"\tvsync_len: %d\n"
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"\tsync: %d\n"
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"\tvmode: %d\n"
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"\n",
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vinfo.xres, vinfo.yres, vinfo.xres_virtual, vinfo.yres_virtual,
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vinfo.xoffset, vinfo.yoffset, vinfo.bits_per_pixel, vinfo.grayscale,
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vinfo.red.offset, vinfo.red.length, vinfo.red.msb_right,
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vinfo.green.offset, vinfo.green.length, vinfo.green.msb_right,
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vinfo.blue.offset, vinfo.blue.length, vinfo.blue.msb_right,
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vinfo.transp.offset, vinfo.transp.length, vinfo.transp.msb_right,
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vinfo.nonstd, vinfo.activate, vinfo.height, vinfo.width,
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vinfo.accel_flags, vinfo.pixclock, vinfo.left_margin,
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vinfo.right_margin, vinfo.upper_margin, vinfo.lower_margin,
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vinfo.hsync_len, vinfo.vsync_len, vinfo.sync, vinfo.vmode);
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}
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long switchToGraphicsMode()
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{
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const char *const devs[] = {"/dev/tty0", "/dev/tty", "/dev/console", 0};
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const char * const *dev;
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long oldMode = KD_TEXT;
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for (dev = devs; *dev; ++dev) {
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ttyFd = open(*dev, O_RDWR);
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if (ttyFd != -1)
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break;
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printf("Opening tty device %s failed: %s\n", *dev, strerror(errno));
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}
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ioctl(ttyFd, KDGETMODE, &oldMode);
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if (oldMode == KD_GRAPHICS) {
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printf("Was in graphics mode already. Skipping\n");
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return oldMode;
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}
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int ret = ioctl(ttyFd, KDSETMODE, KD_GRAPHICS);
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if (ret == -1) {
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printf("Switch to graphics mode failed: %s\n", strerror(errno));
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return oldMode;
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}
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printf("Successfully switched to graphics mode.\n\n");
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return oldMode;
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}
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void restoreTextMode(long oldMode)
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{
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if (ttyFd == -1)
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return;
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ioctl(ttyFd, KDSETMODE, oldMode);
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close(ttyFd);
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}
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struct fb_cmap oldPalette;
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struct fb_cmap palette;
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int paletteSize = 0;
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void initPalette_16()
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{
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if (finfo.type == FB_TYPE_PACKED_PIXELS) {
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// We'll setup a grayscale map for 4bpp linear
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int val = 0;
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int i;
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for (i = 0; i < 16; ++i) {
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palette.red[i] = (val << 8) | val;
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palette.green[i] = (val << 8) | val;
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palette.blue[i] = (val << 8) | val;
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val += 17;
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}
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return;
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}
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// Default 16 colour palette
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unsigned char reds[16] = { 0x00, 0x7F, 0xBF, 0xFF, 0xFF, 0xA2,
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0x00, 0xFF, 0xFF, 0x00, 0x7F, 0x7F,
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0x00, 0x00, 0x00, 0x82 };
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unsigned char greens[16] = { 0x00, 0x7F, 0xBF, 0xFF, 0x00, 0xC5,
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0x00, 0xFF, 0x00, 0xFF, 0x00, 0x00,
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0x00, 0x7F, 0x7F, 0x7F };
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unsigned char blues[16] = { 0x00, 0x7F, 0xBF, 0xFF, 0x00, 0x11,
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0xFF, 0x00, 0xFF, 0xFF, 0x00, 0x7F,
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0x7F, 0x7F, 0x00, 0x00 };
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int i;
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for (i = 0; i < 16; ++i) {
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palette.red[i] = ((reds[i]) << 8) | reds[i];
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palette.green[i] = ((greens[i]) << 8) | greens[i];
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palette.blue[i] = ((blues[i]) << 8) | blues[i];
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palette.transp[i] = 0;
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}
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}
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void initPalette_256()
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{
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if (vinfo.grayscale) {
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int i;
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for (i = 0; i < 256; ++i) {
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unsigned short c = (i << 8) | i;
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palette.red[i] = c;
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palette.green[i] = c;
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palette.blue[i] = c;
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palette.transp[i] = 0;
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}
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return;
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}
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// 6x6x6 216 color cube
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int i = 0;
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int ir, ig, ib;
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for (ir = 0x0; ir <= 0xff; ir += 0x33) {
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for (ig = 0x0; ig <= 0xff; ig += 0x33) {
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for (ib = 0x0; ib <= 0xff; ib += 0x33) {
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palette.red[i] = (ir << 8)|ir;
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palette.green[i] = (ig << 8)|ig;
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palette.blue[i] = (ib << 8)|ib;
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palette.transp[i] = 0;
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++i;
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}
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}
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}
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}
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void initPalette()
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{
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switch (vinfo.bits_per_pixel) {
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case 8: paletteSize = 256; break;
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case 4: paletteSize = 16; break;
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default: break;
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}
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if (!paletteSize)
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return; /* not using a palette */
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/* read old palette */
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oldPalette.start = 0;
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oldPalette.len = paletteSize;
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oldPalette.red = (unsigned short*)malloc(sizeof(unsigned short)*paletteSize);
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oldPalette.green = (unsigned short*)malloc(sizeof(unsigned short)*paletteSize);
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oldPalette.blue=(unsigned short*)malloc(sizeof(unsigned short)*paletteSize);
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oldPalette.transp=(unsigned short*)malloc(sizeof(unsigned short)*paletteSize);
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if (ioctl(ttyFd, FBIOGETCMAP, &oldPalette) == -1)
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perror("initPalette: error reading palette");
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/* create new palette */
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palette.start = 0;
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palette.len = paletteSize;
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palette.red = (unsigned short*)malloc(sizeof(unsigned short)*paletteSize);
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palette.green = (unsigned short*)malloc(sizeof(unsigned short)*paletteSize);
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palette.blue = (unsigned short*)malloc(sizeof(unsigned short)*paletteSize);
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palette.transp = (unsigned short*)malloc(sizeof(unsigned short)*paletteSize);
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switch (paletteSize) {
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case 16: initPalette_16(); break;
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case 256: initPalette_256(); break;
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default: break;
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}
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/* set new palette */
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if (ioctl(ttyFd, FBIOPUTCMAP, &palette) == -1)
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perror("initPalette: error setting palette");
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}
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void resetPalette()
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{
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if (paletteSize == 0)
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return;
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if (ioctl(ttyFd, FBIOPUTCMAP, &oldPalette) == -1)
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perror("resetPalette");
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free(oldPalette.red);
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free(oldPalette.green);
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free(oldPalette.blue);
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free(oldPalette.transp);
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free(palette.red);
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free(palette.green);
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free(palette.blue);
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free(palette.transp);
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}
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void drawRect_rgb32(int x0, int y0, int width, int height, int color)
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{
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const int bytesPerPixel = 4;
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const int stride = finfo.line_length / bytesPerPixel;
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int *dest = (int*)(frameBuffer)
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+ (y0 + vinfo.yoffset) * stride
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+ (x0 + vinfo.xoffset);
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int x, y;
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for (y = 0; y < height; ++y) {
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for (x = 0; x < width; ++x) {
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dest[x] = color;
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}
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dest += stride;
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}
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}
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void drawRect_rgb18(int x0, int y0, int width, int height, int color)
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{
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const int bytesPerPixel = 3;
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const int stride = finfo.line_length - width * bytesPerPixel;
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const int red = (color & 0xff0000) >> 16;
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const int green = (color & 0xff00) >> 8;
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const int blue = (color & 0xff);
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const unsigned int packed = (blue >> 2) |
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((green >> 2) << 6) |
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((red >> 2) << 12);
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const char color18[3] = { packed & 0xff,
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(packed & 0xff00) >> 8,
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(packed & 0xff0000) >> 16 };
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char *dest = (char*)(frameBuffer)
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+ (y0 + vinfo.yoffset) * stride
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+ (x0 + vinfo.xoffset);
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int x, y;
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for (y = 0; y < height; ++y) {
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for (x = 0; x < width; ++x) {
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*dest++ = color18[0];
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*dest++ = color18[1];
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*dest++ = color18[2];
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}
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dest += stride;
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}
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}
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void drawRect_rgb16(int x0, int y0, int width, int height, int color)
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{
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const int bytesPerPixel = 2;
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const int stride = finfo.line_length / bytesPerPixel;
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const int red = (color & 0xff0000) >> (16 + 3);
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const int green = (color & 0xff00) >> (8 + 2);
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const int blue = (color & 0xff) >> 3;
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const short color16 = blue | (green << 5) | (red << (5 + 6));
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short *dest = (short*)(frameBuffer)
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|
|
|
+ (y0 + vinfo.yoffset) * stride
|
|
|
|
+ (x0 + vinfo.xoffset);
|
|
|
|
|
|
|
|
int x, y;
|
|
|
|
for (y = 0; y < height; ++y) {
|
|
|
|
for (x = 0; x < width; ++x) {
|
|
|
|
dest[x] = color16;
|
|
|
|
}
|
|
|
|
dest += stride;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void drawRect_rgb15(int x0, int y0, int width, int height, int color)
|
|
|
|
{
|
|
|
|
const int bytesPerPixel = 2;
|
|
|
|
const int stride = finfo.line_length / bytesPerPixel;
|
|
|
|
const int red = (color & 0xff0000) >> (16 + 3);
|
|
|
|
const int green = (color & 0xff00) >> (8 + 3);
|
|
|
|
const int blue = (color & 0xff) >> 3;
|
|
|
|
const short color15 = blue | (green << 5) | (red << (5 + 5));
|
|
|
|
|
|
|
|
short *dest = (short*)(frameBuffer)
|
|
|
|
+ (y0 + vinfo.yoffset) * stride
|
|
|
|
+ (x0 + vinfo.xoffset);
|
|
|
|
|
|
|
|
int x, y;
|
|
|
|
for (y = 0; y < height; ++y) {
|
|
|
|
for (x = 0; x < width; ++x) {
|
|
|
|
dest[x] = color15;
|
|
|
|
}
|
|
|
|
dest += stride;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void drawRect_palette(int x0, int y0, int width, int height, int color)
|
|
|
|
{
|
|
|
|
const int bytesPerPixel = 1;
|
|
|
|
const int stride = finfo.line_length / bytesPerPixel;
|
|
|
|
const unsigned char color8 = color;
|
|
|
|
|
|
|
|
unsigned char *dest = (unsigned char*)(frameBuffer)
|
|
|
|
+ (y0 + vinfo.yoffset) * stride
|
|
|
|
+ (x0 + vinfo.xoffset);
|
|
|
|
|
|
|
|
int x, y;
|
|
|
|
for (y = 0; y < height; ++y) {
|
|
|
|
for (x = 0; x < width; ++x) {
|
|
|
|
dest[x] = color8;
|
|
|
|
}
|
|
|
|
dest += stride;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void drawRect(int x0, int y0, int width, int height, int color)
|
|
|
|
{
|
|
|
|
switch (vinfo.bits_per_pixel) {
|
|
|
|
case 32:
|
|
|
|
drawRect_rgb32(x0, y0, width, height, color);
|
|
|
|
break;
|
|
|
|
case 18:
|
|
|
|
drawRect_rgb18(x0, y0, width, height, color);
|
|
|
|
break;
|
|
|
|
case 16:
|
|
|
|
drawRect_rgb16(x0, y0, width, height, color);
|
|
|
|
break;
|
|
|
|
case 15:
|
|
|
|
drawRect_rgb15(x0, y0, width, height, color);
|
|
|
|
break;
|
|
|
|
case 8:
|
|
|
|
drawRect_palette(x0, y0, width, height, color);
|
|
|
|
break;
|
|
|
|
case 4:
|
|
|
|
drawRect_palette(x0, y0, width, height, color);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
printf("Warning: drawRect() not implemented for color depth %i\n",
|
|
|
|
vinfo.bits_per_pixel);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
#define PERFORMANCE_RUN_COUNT 5
|
|
|
|
void performSpeedTest(void* fb, int fbSize)
|
|
|
|
{
|
|
|
|
int i, j, run;
|
|
|
|
|
|
|
|
struct timeval startTime, endTime;
|
|
|
|
unsigned long long results[PERFORMANCE_RUN_COUNT];
|
|
|
|
unsigned long long average;
|
|
|
|
|
|
|
|
unsigned int* testImage;
|
|
|
|
|
|
|
|
unsigned int randData[17] = {
|
|
|
|
0x3A428472, 0x724B84D3, 0x26B898AB, 0x7D980E3C, 0x5345A084,
|
|
|
|
0x6779B66B, 0x791EE4B4, 0x6E8EE3CC, 0x63AF504A, 0x18A21B33,
|
|
|
|
0x0E26EB73, 0x022F708E, 0x1740F3B0, 0x7E2C699D, 0x0E8A570B,
|
|
|
|
0x5F2C22FB, 0x6A742130
|
|
|
|
};
|
|
|
|
|
|
|
|
printf("Frame Buffer Performance test...\n");
|
|
|
|
|
|
|
|
for (run=0; run<PERFORMANCE_RUN_COUNT; ++run) {
|
|
|
|
|
|
|
|
/* Generate test image with random(ish) data: */
|
|
|
|
testImage = (unsigned int*) malloc(fbSize);
|
|
|
|
j = run;
|
|
|
|
for (i=0; i < (int)(fbSize / sizeof(int)); ++i) {
|
|
|
|
testImage[i] = randData[j];
|
|
|
|
j++;
|
|
|
|
if (j >= 17)
|
|
|
|
j = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
gettimeofday(&startTime, NULL);
|
|
|
|
memcpy(fb, testImage, fbSize);
|
|
|
|
gettimeofday(&endTime, NULL);
|
|
|
|
|
|
|
|
long secsDiff = endTime.tv_sec - startTime.tv_sec;
|
|
|
|
results[run] = secsDiff * 1000000 + (endTime.tv_usec - startTime.tv_usec);
|
|
|
|
|
|
|
|
free(testImage);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
average = 0;
|
|
|
|
for (i=0; i<PERFORMANCE_RUN_COUNT; ++i)
|
|
|
|
average += results[i];
|
|
|
|
average = average / PERFORMANCE_RUN_COUNT;
|
|
|
|
|
|
|
|
printf(" Average: %llu usecs\n", average);
|
|
|
|
printf(" Bandwidth: %.03f MByte/Sec\n", (fbSize / 1048576.0) / ((double)average / 1000000.0));
|
|
|
|
printf(" Max. FPS: %.03f fps\n\n", 1000000.0 / (double)average);
|
|
|
|
|
|
|
|
/* Clear the framebuffer back to black again: */
|
|
|
|
memset(fb, 0, fbSize);
|
|
|
|
}
|
|
|
|
|
|
|
|
int main(int argc, char **argv)
|
|
|
|
{
|
|
|
|
long int screensize = 0;
|
|
|
|
int doGraphicsMode = 1;
|
|
|
|
long oldKdMode = KD_TEXT;
|
|
|
|
const char *devfile = "/dev/fb0";
|
|
|
|
int nextArg = 1;
|
|
|
|
|
|
|
|
if (nextArg < argc) {
|
|
|
|
if (strncmp("nographicsmodeswitch", argv[nextArg],
|
|
|
|
strlen("nographicsmodeswitch")) == 0)
|
|
|
|
{
|
|
|
|
++nextArg;
|
|
|
|
doGraphicsMode = 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (nextArg < argc)
|
|
|
|
devfile = argv[nextArg++];
|
|
|
|
|
|
|
|
/* Open the file for reading and writing */
|
|
|
|
fbFd = open(devfile, O_RDWR);
|
|
|
|
if (fbFd == -1) {
|
|
|
|
perror("Error: cannot open framebuffer device");
|
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
printf("The framebuffer device was opened successfully.\n\n");
|
|
|
|
|
|
|
|
/* Get fixed screen information */
|
|
|
|
if (ioctl(fbFd, FBIOGET_FSCREENINFO, &finfo) == -1) {
|
|
|
|
perror("Error reading fixed information");
|
|
|
|
exit(2);
|
|
|
|
}
|
|
|
|
|
|
|
|
printFixedInfo();
|
|
|
|
|
|
|
|
/* Figure out the size of the screen in bytes */
|
|
|
|
screensize = finfo.smem_len;
|
|
|
|
|
|
|
|
/* Map the device to memory */
|
|
|
|
frameBuffer = (char *)mmap(0, screensize,
|
|
|
|
PROT_READ | PROT_WRITE, MAP_SHARED,
|
|
|
|
fbFd, 0);
|
|
|
|
if (frameBuffer == MAP_FAILED) {
|
|
|
|
perror("Error: Failed to map framebuffer device to memory");
|
|
|
|
exit(4);
|
|
|
|
}
|
|
|
|
printf("The framebuffer device was mapped to memory successfully.\n"
|
|
|
|
"\n");
|
|
|
|
|
|
|
|
if (doGraphicsMode)
|
|
|
|
oldKdMode = switchToGraphicsMode();
|
|
|
|
|
|
|
|
/* Get variable screen information */
|
|
|
|
if (ioctl(fbFd, FBIOGET_VSCREENINFO, &vinfo) == -1) {
|
|
|
|
perror("Error reading variable information");
|
|
|
|
exit(3);
|
|
|
|
}
|
|
|
|
|
|
|
|
printVariableInfo();
|
|
|
|
|
|
|
|
performSpeedTest(frameBuffer, screensize);
|
|
|
|
|
|
|
|
initPalette();
|
|
|
|
|
|
|
|
if (paletteSize == 0) {
|
|
|
|
printf("Will draw 3 rectangles on the screen,\n"
|
|
|
|
"they should be colored red, green and blue (in that order).\n");
|
|
|
|
drawRect(vinfo.xres / 8, vinfo.yres / 8,
|
|
|
|
vinfo.xres / 4, vinfo.yres / 4,
|
|
|
|
0xffff0000);
|
|
|
|
drawRect(vinfo.xres * 3 / 8, vinfo.yres * 3 / 8,
|
|
|
|
vinfo.xres / 4, vinfo.yres / 4,
|
|
|
|
0xff00ff00);
|
|
|
|
drawRect(vinfo.xres * 5 / 8, vinfo.yres * 5 / 8,
|
|
|
|
vinfo.xres / 4, vinfo.yres / 4,
|
|
|
|
0xff0000ff);
|
|
|
|
} else {
|
|
|
|
printf("Will rectangles from the 16 first entries in the color palette"
|
|
|
|
" on the screen\n");
|
|
|
|
int y;
|
|
|
|
int x;
|
|
|
|
for (y = 0; y < 4; ++y) {
|
|
|
|
for (x = 0; x < 4; ++x) {
|
|
|
|
drawRect(vinfo.xres / 4 * x, vinfo.yres / 4 * y,
|
|
|
|
vinfo.xres / 4, vinfo.yres / 4,
|
|
|
|
4 * y + x);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
sleep(5);
|
|
|
|
|
|
|
|
resetPalette();
|
|
|
|
|
|
|
|
printf(" Done.\n");
|
|
|
|
|
|
|
|
if (doGraphicsMode)
|
|
|
|
restoreTextMode(oldKdMode);
|
|
|
|
|
|
|
|
munmap(frameBuffer, screensize);
|
|
|
|
close(fbFd);
|
|
|
|
return 0;
|
|
|
|
}
|