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added xdemo

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This commit is contained in:
Jay Sorg 2012-01-26 00:38:13 -06:00
parent 012ed7541c
commit bc05047613
6 changed files with 901 additions and 0 deletions
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3
tests/xdemo/README.txt Normal file
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this is a project to develope a program to test xwindows

204
tests/xdemo/bmp_parser.c Normal file
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#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdint.h>
#include "common.h"
// multi byte values are stored in little endian
struct bmp_magic
{
char magic[2];
};
struct bmp_hdr
{
uint32_t size; // file size in bytes
uint16_t reserved1;
uint16_t reserved2;
uint32_t offset; // offset to image data, in bytes
};
struct dib_hdr
{
uint32_t hdr_size;
int32_t width;
int32_t height;
uint16_t nplanes;
uint16_t bpp;
uint32_t compress_type;
uint32_t image_size;
int32_t hres;
int32_t vres;
uint32_t ncolors;
uint32_t nimpcolors;
};
// forward declarations
int parse_bmp(char *filename, struct pic_info *pic_info);
int parse_bmp_24(struct bmp_hdr *bmp_hdr, struct dib_hdr *dib_hdr, int fd, struct pic_info *pic_info);
int parse_bmp(char *filename, struct pic_info *pic_info)
{
int got_magic;
int fd;
int rval;
struct bmp_magic magic;
struct bmp_hdr bmp_hdr;
struct dib_hdr dib_hdr;
if ((fd = open(filename, O_RDONLY)) < 0) {
printf("error opeing %s\n", filename);
return -1;
}
// read BMP magic...
if ((rval = read(fd, magic.magic, 2)) != 2) {
fprintf(stderr, "error reading BMP signature from file %s\n", filename);
return -1;
}
got_magic = 0;
// ...and confirm that this is indeed a BMP file
if ((magic.magic[0] == 'B') && (magic.magic[1] == 'M')) {
// BM – Windows 3.1x, 95, NT, ... etc
got_magic = 1;
}
else if ((magic.magic[0] == 'B') && (magic.magic[1] == 'A')) {
// BA – OS/2 struct Bitmap Array
got_magic = 1;
}
else if ((magic.magic[0] == 'C') && (magic.magic[1] == 'I')) {
// CI – OS/2 struct Color Icon
got_magic = 1;
}
else if ((magic.magic[0] == 'C') && (magic.magic[1] == 'P')) {
// CP – OS/2 const Color Pointer
got_magic = 1;
}
else if ((magic.magic[0] == 'I') && (magic.magic[1] == 'C')) {
// IC – OS/2 struct Icon
got_magic = 1;
}
else if ((magic.magic[0] == 'P') && (magic.magic[1] == 'T')) {
// PT – OS/2 Pointer
got_magic = 1;
}
if (!got_magic) {
fprintf(stderr, "%s is not a valid BMP file\n", filename);
return -1;
}
// read BMP header
if ((rval = read(fd, &bmp_hdr, sizeof(bmp_hdr))) < sizeof(bmp_hdr)) {
fprintf(stderr, "error BMP header from file %s\n", filename);
return -1;
}
// read DIB header
if ((rval = read(fd, &dib_hdr, sizeof(dib_hdr))) < sizeof(dib_hdr)) {
fprintf(stderr, "error reading DIB header from file %s\n", filename);
return -1;
}
#if 0
printf("header size: %d\n", dib_hdr.hdr_size);
printf("width: %d\n", dib_hdr.width);
printf("height: %d\n", dib_hdr.height);
printf("num planes: %d\n", dib_hdr.nplanes);
printf("bpp: %d\n", dib_hdr.bpp);
printf("comp type: %d\n", dib_hdr.compress_type);
printf("image size: %d\n", dib_hdr.image_size);
printf("hres: %d\n", dib_hdr.hres);
printf("vres: %d\n", dib_hdr.vres);
printf("ncolors: %d\n", dib_hdr.ncolors);
printf("nimpcolors: %d\n", dib_hdr.nimpcolors);
#endif
if (dib_hdr.compress_type) {
printf("TODO: compressed images not yet supported\n");
return -1;
}
pic_info->width = dib_hdr.width;
pic_info->height = dib_hdr.height;
if (dib_hdr.bpp == 24) {
rval = parse_bmp_24(&bmp_hdr, &dib_hdr, fd, pic_info);
}
close(fd);
return rval;
}
/**
* extract 24bit BMP data from image file
*
* @return 0 on success
* @return -1 on failure
*/
int parse_bmp_24(
struct bmp_hdr *bmp_hdr,
struct dib_hdr *dib_hdr,
int fd,
struct pic_info *pic_info
)
{
char *file_data;
char *ptr_file_data;
char *mem_data;
char *ptr_mem_data;
char *cptr;
int w = dib_hdr->width; // picture width
int h = dib_hdr->height; // picture height
int bpl; // bytes per line
int bytes;
int i;
int j;
// bytes per image line = width x bytes_per_pixel + padding
i = (w * 3) % 4;
j = (i == 0) ? 0 : 4 - i;
bpl = w * 3 + j;
// 24 bit depth, no alpha channel
file_data = (char *) malloc(h * bpl);
// point to first line in image data, which is stored in reverse order
ptr_file_data = (file_data + dib_hdr->image_size) - bpl;
// 24 bit depth, with alpha channel
mem_data = (char *) malloc(w * h * 4);
ptr_mem_data = mem_data;
pic_info->pixel_data = ptr_mem_data;
// seek to beginning of pixel data
lseek(fd, bmp_hdr->offset, SEEK_SET);
// read all pixel data
bytes = read(fd, file_data, dib_hdr->image_size);
// convert 24bit to 24 bit with alpha and store in reverse
for (i = 0; i < h; i ++)
{
cptr = ptr_file_data;
for (j = 0; j < w; j++)
{
*ptr_mem_data++ = *cptr++; // blue value
*ptr_mem_data++ = *cptr++; // green value
*ptr_mem_data++ = *cptr++; // red value
*ptr_mem_data++ = 0; // alpha channel
}
ptr_file_data -= bpl;
}
free(file_data);
return 0;
}

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tests/xdemo/commit.txt Normal file
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First commit for the project Ver 1.0

19
tests/xdemo/common.h Normal file
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#ifndef __XDEMO_H
#define __XDEMO_H
#define DEBUG
#ifdef DEBUG
#define dprint(x...) printf(x)
#else
#define dprint(x...)
#endif
struct pic_info
{
int width;
int height;
char *pixel_data;
};
#endif

674
tests/xdemo/xdemo.c Normal file
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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <time.h>
#include <stdint.h>
#include <string.h>
#include <sys/types.h>
#include <sys/time.h>
#include <signal.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include "common.h"
// LK_TODO
// http://tronche.com/gui/x/xlib/GC/convenience-functions/fill-tile-and-stipple.html
// fill stipple
// drawfonts: XDrawString, XDrawImageString XDrawText XLoadFont XTextExtents
// http://www.ac3.edu.au/SGI_Developer/books/XLib_PG/sgi_html/apa.html
// http://www.ac3.edu.au/SGI_Developer/books/XLib_PG/sgi_html/index.html
// use jpg lib to convert bmp to jpg and vice versa
#define MAX_COLORS 5
#define SCROLL_JUMP 1 // scroll in increments of g_winHeight
#define SCROLL_SMOOTH1 2 // scroll using XPutImage + XCopyArea
#define SCROLL_SMOOTH2 3 // scroll using XPutImage only
int parse_bmp(char *filename, struct pic_info *);
int drawBMP(char *filename, int scroll_type);
int signal_tcp_proxy(char *proxy_app);
// globals
Display *g_disp;
Window g_win;
XColor g_colors[MAX_COLORS];
GC g_gc;
int g_winWidth;
int g_winHeight;
int g_delay_dur;
void start_timer(struct timeval *tv)
{
gettimeofday(tv, NULL);
}
uint32_t time_elapsed_ms(struct timeval tv)
{
struct timeval tv_now;
uint32_t dur;
gettimeofday(&tv_now, NULL);
dur = ((tv_now.tv_sec - tv.tv_sec) * 1000) + ((tv_now.tv_usec - tv.tv_usec) / 1000);
return dur;
}
uint32_t time_elapsed_us(struct timeval tv)
{
struct timeval tv_now;
uint32_t dur;
gettimeofday(&tv_now, NULL);
dur = ((tv_now.tv_sec - tv.tv_sec) * 1000000) + (tv_now.tv_usec - tv.tv_usec);
return dur;
}
int drawLines(int count)
{
int x1;
int y1;
int x2;
int y2;
int i;
int index;
if (count <= 0) {
return 0; // nothing to do
}
srandom(time(NULL));
XClearArea(g_disp, g_win, 0, 0, g_winWidth, g_winHeight, 0);
for (i = 0, index = 0; i < count; i++)
{
x1 = random() % g_winWidth;
y1 = random() % g_winHeight;
x2 = random() % g_winWidth;
y2 = random() % g_winHeight;
XSetForeground(g_disp, g_gc, g_colors[index++].pixel);
if (index == MAX_COLORS) {
index = 0;
}
// from-to
XDrawLine(g_disp, g_win, g_gc, x1, y1, x2, y2);
XFlush(g_disp);
usleep(g_delay_dur);
}
return 0;
}
// LK_TODO support user defined w and h
int drawRectangles(int count)
{
int x1;
int y1;
int w;
int h;
int i;
int index;
if (count <= 0) {
return 0; // nothing to do
}
srandom(time(NULL));
XClearArea(g_disp, g_win, 0, 0, g_winWidth, g_winHeight, 0);
for (i = 0, index = 0; i < count; i++)
{
x1 = random() % g_winWidth;
y1 = random() % g_winHeight;
w = 160;
h = 140;
XSetForeground(g_disp, g_gc, g_colors[index++].pixel);
if (index == MAX_COLORS) {
index = 0;
}
//XDrawRectangle(g_disp, g_win, g_gc, x1, y1, w, h);
XFillRectangle(g_disp, g_win, g_gc, x1, y1, w, h);
XFlush(g_disp);
usleep(g_delay_dur);
}
return 0;
}
int drawFont(int count, char *msg)
{
int x1;
int y1;
int i;
int index;
#ifdef CHANGE_FONT_SIZE
int w;
int h;
int actual_count;
char **font_list;
#endif
if (count <= 0) {
return 0; // nothing to do
}
srandom(time(NULL));
XClearArea(g_disp, g_win, 0, 0, g_winWidth, g_winHeight, 0);
#ifdef CHANGE_FONT_SIZE
font_list = XListFonts(g_disp, "−*−courier−*−*−*−*−0−0−*−*−*−0−*−*", 2000, &actual_count);
if (!font_list) {
printf("actual_count=%d\n", actual_count);
for (i = 0; i < actual_count; i++)
{
printf("%s\n", font_list[i]);
}
XFreeFontNames(font_list);
}
else {
printf("XListFonts() reted NULL\n");
}
#endif
srandom(time(NULL));
for (i = 0, index = 0; i < count; i++)
{
x1 = random() % g_winWidth;
y1 = random() % g_winHeight;
XSetForeground(g_disp, g_gc, g_colors[index++].pixel);
if (index == MAX_COLORS) {
index = 0;
}
XDrawString(g_disp, g_win, g_gc, x1, y1, msg, strlen(msg));
XFlush(g_disp);
usleep(g_delay_dur);
}
return 0; // nothing to do
}
/**
* display a usage message
*/
void
usage()
{
printf("usage: xdemo [-l] [-r] [-s] [-f <string>] [-i <image file>] [-g <WxH>] [-c <count>] [-o <scroll type>] [-d <delay>] -z\n");
printf(" -l draw lines\n");
printf(" -r draw fill rectangles\n");
printf(" -s draw stipple rectangles\n");
printf(" -f <string> draw string using fonts\n");
printf(" -i <image file> draw image\n");
printf(" -g <WxH> geometry, default is 640x480\n");
printf(" -c <count> iteration count, default is 5000\n");
printf(" -d <delay> loop delay in micro seconds, default 1000\n");
printf(" -o <jump|smooth1|smooth2> define scrolling method\n");
printf(" -z <proxy_app> zero proxy counters for specified application\n\n");
}
int main(int argc, char **argv)
{
XEvent evt;
Colormap colormap;
struct timeval tv;
int screenNumber;
long eventMask;
unsigned long white;
unsigned long black;
Status rc;
int iters;
int opt;
int draw_lines;
int draw_rects;
int draw_stipples;
int draw_fonts;
int draw_image;
int zero_counters;
int scroll_type;
char image_file[256];
char proxy_app[256];
char msg[4096];
// set some defaults
g_winWidth = 640;
g_winHeight = 480;
iters = 5000;
draw_lines = 1;
draw_rects = 1;
draw_stipples = 1;
draw_fonts = 1;
draw_image = 1;
g_delay_dur = 1000;
scroll_type = SCROLL_SMOOTH1;
zero_counters = 0;
strcpy(image_file, "yosemite.bmp");
strcpy(msg, "To be or not to be!");
// process cmd line args
opterr = 0;
while ((opt = getopt(argc, argv, "lrsg:c:f:i:d:o:z:")) != -1)
{
switch (opt)
{
case 'g':
if (sscanf(optarg, "%dx%d", &g_winWidth, &g_winHeight) != 2) {
fprintf(stderr, "\nerror: invalid geometry specified\n\n");
usage();
return -1;
}
break;
case 'c':
if (sscanf(optarg, "%d", &iters) != 1) {
fprintf(stderr, "\nerror: invalid count specified\n\n");
usage();
return -1;
}
break;
case 'l':
draw_lines = 1;
draw_rects = 0;
draw_stipples = 0;
draw_fonts = 0;
draw_image = 0;
break;
case 'r':
draw_rects = 1;
draw_lines = 0;
draw_stipples = 0;
draw_fonts = 0;
draw_image = 0;
break;
case 's':
draw_stipples = 1;
draw_lines = 0;
draw_rects = 0;
draw_fonts = 0;
draw_image = 0;
break;
case 'f':
if (strlen(optarg) <= 0) {
fprintf(stderr, "\nerror: -f option requires an argument\n\n");
usage();
return -1;
}
draw_fonts = 1;
strncpy(msg, optarg, 4096);
draw_lines = 0;
draw_rects = 0;
draw_stipples = 0;
draw_image = 0;
break;
case 'i':
if (strlen(optarg) <= 0) {
fprintf(stderr, "\nerror: -i option requires an argument\n\n");
usage();
return -1;
}
draw_image = 1;
strncpy(image_file, optarg, 255);
draw_lines = 0;
draw_rects = 0;
draw_stipples = 0;
draw_fonts = 0;
break;
case 'h':
usage();
return 0;
break;
case 'v':
printf("xdemo Ver 1.0\n");
return 0;
break;
case 'd':
if (sscanf(optarg, "%d", &g_delay_dur) != 1) {
fprintf(stderr, "\nerror: -d option requires an argument\n\n");
usage();
return -1;
}
break;
case 'z':
if (strlen(optarg) <= 0) {
fprintf(stderr, "\nerror: invalid proxy application specified\n\n");
usage();
return -1;
}
strcpy(proxy_app, optarg);
printf("##### LK_TODO: proxy_app=%s\n", proxy_app);
zero_counters = 1;
break;
case 'o':
if (strcmp(optarg, "jump") == 0) {
scroll_type = SCROLL_JUMP;
}
else if (strcmp(optarg, "smooth1") == 0) {
scroll_type = SCROLL_SMOOTH1;
}
else if (strcmp(optarg, "smooth2") == 0) {
scroll_type = SCROLL_SMOOTH2;
}
else {
fprintf(stderr, "\ninvalid scroll type specified\n\n");
usage();
return -1;
}
break;
default:
usage();
return -1;
}
}
// must have at least one operation
if ((!draw_lines) && (!draw_rects) && (!draw_stipples) &&
(!draw_fonts) && (!draw_image)) {
usage();
return -1;
}
g_disp = XOpenDisplay(NULL);
if (!g_disp) {
dprint("error opening X display\n");
exit(-1);
}
screenNumber = DefaultScreen(g_disp);
white = WhitePixel(g_disp, screenNumber);
black = BlackPixel(g_disp, screenNumber);
g_win = XCreateSimpleWindow(g_disp,
DefaultRootWindow(g_disp),
50, 50, // origin
g_winWidth, g_winHeight, // size
0, black, // border
white ); // backgd
XMapWindow(g_disp, g_win);
//eventMask = StructureNotifyMask | MapNotify | VisibilityChangeMask;
eventMask = StructureNotifyMask | VisibilityChangeMask;
XSelectInput(g_disp, g_win, eventMask);
g_gc = XCreateGC(g_disp, g_win,
0, // mask of values
NULL ); // array of values
#if 0
do
{
dprint("about to call XNextEvent(...)\n");
XNextEvent(g_disp, &evt);// calls XFlush
dprint("returned from XNextEvent(...)\n");
}
//while(evt.type != MapNotify);
while(evt.type != VisibilityNotify);
#endif
// get access to the screen's color map
colormap = DefaultColormap(g_disp, screenNumber);
// alloc red color
rc = XAllocNamedColor(g_disp, colormap, "red", &g_colors[0], &g_colors[0]);
if (rc == 0) {
printf("XAllocNamedColor - failed to allocated 'red' color.\n");
exit(1);
}
rc = XAllocNamedColor(g_disp, colormap, "green", &g_colors[1], &g_colors[1]);
if (rc == 0) {
printf("XAllocNamedColor - failed to allocated 'green' color.\n");
exit(1);
}
rc = XAllocNamedColor(g_disp, colormap, "blue", &g_colors[2], &g_colors[2]);
if (rc == 0) {
printf("XAllocNamedColor - failed to allocated 'blue' color.\n");
exit(1);
}
rc = XAllocNamedColor(g_disp, colormap, "yellow", &g_colors[3], &g_colors[3]);
if (rc == 0) {
printf("XAllocNamedColor - failed to allocated 'yellow' color.\n");
exit(1);
}
rc = XAllocNamedColor(g_disp, colormap, "orange", &g_colors[4], &g_colors[4]);
if (rc == 0) {
printf("XAllocNamedColor - failed to allocated 'orange' color.\n");
exit(1);
}
if (zero_counters) {
signal_tcp_proxy(proxy_app);
}
if (draw_lines) {
start_timer(&tv);
drawLines(iters);
printf("drew %d lines in %d ms\n", iters, time_elapsed_ms(tv));
}
if (draw_rects) {
start_timer(&tv);
drawRectangles(iters);
printf("drew %d rects in %d ms\n", iters, time_elapsed_ms(tv));
}
if (draw_stipples) {
start_timer(&tv);
// LK_TODO
}
if (draw_fonts) {
start_timer(&tv);
drawFont(iters, msg);
printf("drew %d strings in %d ms\n", iters, time_elapsed_ms(tv));
}
if (draw_image) {
start_timer(&tv);
drawBMP(image_file, scroll_type);
printf("drew BMP in %d ms\n", time_elapsed_ms(tv));
}
if (zero_counters) {
signal_tcp_proxy(proxy_app);
}
eventMask = ButtonPressMask|ButtonReleaseMask;
XSelectInput(g_disp, g_win, eventMask);
do
{
XNextEvent(g_disp, &evt); // calls XFlush()
}
while(evt.type != ButtonRelease);
XDestroyWindow(g_disp, g_win);
XCloseDisplay(g_disp);
return 0;
}
int drawBMP(char *filename, int scroll_type)
{
struct pic_info pic_info;
XImage *image;
Visual *visual;
Pixmap pixmap;
int depth;
int i;
int j;
if (parse_bmp(filename, &pic_info) < 0) {
exit(-1);
}
XClearArea(g_disp, g_win, 0, 0, g_winWidth, g_winHeight, 0);
depth = DefaultDepth(g_disp, DefaultScreen(g_disp));
visual = DefaultVisual(g_disp, DefaultScreen(g_disp));
// create empty pixmap
pixmap = XCreatePixmap(g_disp, g_win, pic_info.width, pic_info.height, depth);
// create an image from pixel data
image = XCreateImage(g_disp, visual, depth, ZPixmap, 0, pic_info.pixel_data,
pic_info.width, pic_info.height, 32, 0);
if (pic_info.height <= g_winHeight) {
// image is too small to scroll
XFlush(g_disp);
XPutImage(g_disp, g_win, g_gc, image, 0, 0, 0, 0, pic_info.width, pic_info.height);
XFlush(g_disp);
return 0;
}
if (scroll_type == SCROLL_JUMP) {
// copy image to pixelmap
XPutImage(g_disp, pixmap, g_gc, image, 0, 0, 0, 0, pic_info.width, pic_info.height);
if (pic_info.height <= g_winHeight) {
// image too small - no scrolling required
XFlush(g_disp);
XCopyArea(g_disp, // connection to X server
pixmap, // source drawable
g_win, // dest drawable
g_gc, // graphics context
0, 0, // source x,y
pic_info.width, // width
pic_info.height, // height
0, 0); // dest x,y
XFlush(g_disp);
return 0;
}
j = pic_info.height / g_winHeight;
if (pic_info.height % g_winHeight != 0) {
// need to include the last part of the image
j++;
}
XFlush(g_disp);
for (i = 0; i < j; i++)
{
XCopyArea(g_disp, // connection to X server
pixmap, // source drawable
g_win, // dest drawable
g_gc, // graphics context
0, i * g_winHeight, // source x,y
pic_info.width, // width
pic_info.height, // height
0, 0); // dest x,y
XFlush(g_disp);
sleep(3);
}
}
/*
** smooth scroll the image
*/
// number of lines to be scrolled
j = pic_info.height - g_winHeight;
if (scroll_type == SCROLL_SMOOTH1) {
XFlush(g_disp);
XPutImage(g_disp, g_win, g_gc, image, 0, 0, 0, 0, pic_info.width, pic_info.height);
XFlush(g_disp);
usleep(10000);
for (i = 0; i < j; i++)
{
XCopyArea(g_disp, g_win, g_win, g_gc, 0, 1, g_winWidth, g_winHeight - 1, 0, 0);
XPutImage(g_disp, g_win, g_gc, image, 0, g_winHeight + i, 0, g_winHeight -1 , pic_info.width, 1);
XFlush(g_disp);
usleep(10000);
}
return 0;
}
if (scroll_type == SCROLL_SMOOTH2) {
XFlush(g_disp);
for (i = 0; i < j; i++)
{
XPutImage(g_disp, g_win, g_gc, image, 0, i, 0, 0, pic_info.width, pic_info.height - i);
XFlush(g_disp);
usleep(10000);
}
}
return 0;
}
int process_bmp_event()
{
XEvent ev;
long event_mask;
event_mask = ExposureMask|ButtonPressMask|ButtonReleaseMask|StructureNotifyMask;
XSelectInput(g_disp, g_win, event_mask);
XNextEvent(g_disp, &ev);
switch(ev.type)
{
case Expose:
printf("got expose event\n");
break;
default:
printf("did not get expose event\n");
break;
}
return 0;
}
/**
* send a SIGUSR1 to process tcp_proxy, causing it to clear counters
*
* @return 0 on success, -1 on failure
*/
int signal_tcp_proxy(char *proc_name)
{
FILE *fp;
char *cptr;
char buf[2048];
int pids[10];
int status = 0;
int num_procs;
int i;
sprintf(buf, "pidof %s", proc_name);
if ((fp = popen(buf, "r")) == NULL ) {
printf("xdemo: popen() failed\n");
return -1;
}
cptr = fgets(buf, 2047, fp);
if (cptr == NULL) {
pclose(fp);
return -1;
}
num_procs = sscanf(buf, "%d %d %d %d %d %d %d %d %d %d",
&pids[0], &pids[1], &pids[2], &pids[3], &pids[4],
&pids[5], &pids[6], &pids[7], &pids[8], &pids[9]);
if (num_procs > 0) {
for (i = 0; i < num_procs; i++) {
kill(pids[i], SIGUSR1);
printf("sent SIGUSR1 to process %d\n", pids[i]);
}
}
pclose(fp);
return status;
}

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