added xdemo
This commit is contained in:
Jay Sorg
parent
012ed7541c
commit
bc05047613
3
tests/xdemo/README.txt
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3
tests/xdemo/README.txt
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@ -0,0 +1,3 @@
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this is a project to develope a program to test xwindows
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204
tests/xdemo/bmp_parser.c
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204
tests/xdemo/bmp_parser.c
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@ -0,0 +1,204 @@
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <stdint.h>
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#include "common.h"
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// multi byte values are stored in little endian
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struct bmp_magic
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{
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char magic[2];
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};
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struct bmp_hdr
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{
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uint32_t size; // file size in bytes
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uint16_t reserved1;
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uint16_t reserved2;
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uint32_t offset; // offset to image data, in bytes
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};
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struct dib_hdr
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{
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uint32_t hdr_size;
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int32_t width;
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int32_t height;
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uint16_t nplanes;
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uint16_t bpp;
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uint32_t compress_type;
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uint32_t image_size;
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int32_t hres;
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int32_t vres;
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uint32_t ncolors;
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uint32_t nimpcolors;
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};
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// forward declarations
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int parse_bmp(char *filename, struct pic_info *pic_info);
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int parse_bmp_24(struct bmp_hdr *bmp_hdr, struct dib_hdr *dib_hdr, int fd, struct pic_info *pic_info);
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int parse_bmp(char *filename, struct pic_info *pic_info)
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{
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int got_magic;
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int fd;
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int rval;
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struct bmp_magic magic;
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struct bmp_hdr bmp_hdr;
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struct dib_hdr dib_hdr;
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if ((fd = open(filename, O_RDONLY)) < 0) {
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printf("error opeing %s\n", filename);
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return -1;
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}
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// read BMP magic...
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if ((rval = read(fd, magic.magic, 2)) != 2) {
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fprintf(stderr, "error reading BMP signature from file %s\n", filename);
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return -1;
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}
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got_magic = 0;
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// ...and confirm that this is indeed a BMP file
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if ((magic.magic[0] == 'B') && (magic.magic[1] == 'M')) {
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// BM – Windows 3.1x, 95, NT, ... etc
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got_magic = 1;
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}
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else if ((magic.magic[0] == 'B') && (magic.magic[1] == 'A')) {
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// BA – OS/2 struct Bitmap Array
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got_magic = 1;
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}
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else if ((magic.magic[0] == 'C') && (magic.magic[1] == 'I')) {
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// CI – OS/2 struct Color Icon
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got_magic = 1;
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}
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else if ((magic.magic[0] == 'C') && (magic.magic[1] == 'P')) {
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// CP – OS/2 const Color Pointer
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got_magic = 1;
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}
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else if ((magic.magic[0] == 'I') && (magic.magic[1] == 'C')) {
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// IC – OS/2 struct Icon
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got_magic = 1;
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}
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else if ((magic.magic[0] == 'P') && (magic.magic[1] == 'T')) {
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// PT – OS/2 Pointer
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got_magic = 1;
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}
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if (!got_magic) {
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fprintf(stderr, "%s is not a valid BMP file\n", filename);
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return -1;
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}
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// read BMP header
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if ((rval = read(fd, &bmp_hdr, sizeof(bmp_hdr))) < sizeof(bmp_hdr)) {
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fprintf(stderr, "error BMP header from file %s\n", filename);
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return -1;
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}
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// read DIB header
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if ((rval = read(fd, &dib_hdr, sizeof(dib_hdr))) < sizeof(dib_hdr)) {
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fprintf(stderr, "error reading DIB header from file %s\n", filename);
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return -1;
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}
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#if 0
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printf("header size: %d\n", dib_hdr.hdr_size);
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printf("width: %d\n", dib_hdr.width);
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printf("height: %d\n", dib_hdr.height);
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printf("num planes: %d\n", dib_hdr.nplanes);
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printf("bpp: %d\n", dib_hdr.bpp);
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printf("comp type: %d\n", dib_hdr.compress_type);
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printf("image size: %d\n", dib_hdr.image_size);
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printf("hres: %d\n", dib_hdr.hres);
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printf("vres: %d\n", dib_hdr.vres);
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printf("ncolors: %d\n", dib_hdr.ncolors);
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printf("nimpcolors: %d\n", dib_hdr.nimpcolors);
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#endif
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if (dib_hdr.compress_type) {
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printf("TODO: compressed images not yet supported\n");
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return -1;
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}
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pic_info->width = dib_hdr.width;
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pic_info->height = dib_hdr.height;
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if (dib_hdr.bpp == 24) {
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rval = parse_bmp_24(&bmp_hdr, &dib_hdr, fd, pic_info);
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}
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close(fd);
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return rval;
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}
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/**
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* extract 24bit BMP data from image file
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*
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* @return 0 on success
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* @return -1 on failure
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*/
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int parse_bmp_24(
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struct bmp_hdr *bmp_hdr,
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struct dib_hdr *dib_hdr,
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int fd,
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struct pic_info *pic_info
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)
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{
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char *file_data;
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char *ptr_file_data;
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char *mem_data;
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char *ptr_mem_data;
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char *cptr;
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int w = dib_hdr->width; // picture width
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int h = dib_hdr->height; // picture height
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int bpl; // bytes per line
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int bytes;
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int i;
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int j;
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// bytes per image line = width x bytes_per_pixel + padding
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i = (w * 3) % 4;
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j = (i == 0) ? 0 : 4 - i;
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bpl = w * 3 + j;
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// 24 bit depth, no alpha channel
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file_data = (char *) malloc(h * bpl);
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// point to first line in image data, which is stored in reverse order
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ptr_file_data = (file_data + dib_hdr->image_size) - bpl;
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// 24 bit depth, with alpha channel
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mem_data = (char *) malloc(w * h * 4);
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ptr_mem_data = mem_data;
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pic_info->pixel_data = ptr_mem_data;
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// seek to beginning of pixel data
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lseek(fd, bmp_hdr->offset, SEEK_SET);
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// read all pixel data
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bytes = read(fd, file_data, dib_hdr->image_size);
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// convert 24bit to 24 bit with alpha and store in reverse
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for (i = 0; i < h; i ++)
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{
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cptr = ptr_file_data;
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for (j = 0; j < w; j++)
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{
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*ptr_mem_data++ = *cptr++; // blue value
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*ptr_mem_data++ = *cptr++; // green value
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*ptr_mem_data++ = *cptr++; // red value
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*ptr_mem_data++ = 0; // alpha channel
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}
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ptr_file_data -= bpl;
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}
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free(file_data);
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return 0;
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}
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1
tests/xdemo/commit.txt
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1
tests/xdemo/commit.txt
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@ -0,0 +1 @@
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First commit for the project Ver 1.0
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19
tests/xdemo/common.h
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19
tests/xdemo/common.h
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#ifndef __XDEMO_H
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#define __XDEMO_H
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#define DEBUG
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#ifdef DEBUG
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#define dprint(x...) printf(x)
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#else
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#define dprint(x...)
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#endif
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struct pic_info
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{
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int width;
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int height;
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char *pixel_data;
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};
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#endif
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674
tests/xdemo/xdemo.c
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674
tests/xdemo/xdemo.c
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <time.h>
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#include <stdint.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/time.h>
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#include <signal.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include "common.h"
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// LK_TODO
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// http://tronche.com/gui/x/xlib/GC/convenience-functions/fill-tile-and-stipple.html
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// fill stipple
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// drawfonts: XDrawString, XDrawImageString XDrawText XLoadFont XTextExtents
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// http://www.ac3.edu.au/SGI_Developer/books/XLib_PG/sgi_html/apa.html
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// http://www.ac3.edu.au/SGI_Developer/books/XLib_PG/sgi_html/index.html
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// use jpg lib to convert bmp to jpg and vice versa
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#define MAX_COLORS 5
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#define SCROLL_JUMP 1 // scroll in increments of g_winHeight
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#define SCROLL_SMOOTH1 2 // scroll using XPutImage + XCopyArea
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#define SCROLL_SMOOTH2 3 // scroll using XPutImage only
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int parse_bmp(char *filename, struct pic_info *);
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int drawBMP(char *filename, int scroll_type);
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int signal_tcp_proxy(char *proxy_app);
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// globals
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Display *g_disp;
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Window g_win;
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XColor g_colors[MAX_COLORS];
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GC g_gc;
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int g_winWidth;
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int g_winHeight;
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int g_delay_dur;
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void start_timer(struct timeval *tv)
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{
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gettimeofday(tv, NULL);
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}
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uint32_t time_elapsed_ms(struct timeval tv)
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{
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struct timeval tv_now;
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uint32_t dur;
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gettimeofday(&tv_now, NULL);
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dur = ((tv_now.tv_sec - tv.tv_sec) * 1000) + ((tv_now.tv_usec - tv.tv_usec) / 1000);
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return dur;
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}
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uint32_t time_elapsed_us(struct timeval tv)
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{
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struct timeval tv_now;
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uint32_t dur;
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gettimeofday(&tv_now, NULL);
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dur = ((tv_now.tv_sec - tv.tv_sec) * 1000000) + (tv_now.tv_usec - tv.tv_usec);
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return dur;
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}
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int drawLines(int count)
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{
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int x1;
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int y1;
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int x2;
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int y2;
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int i;
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int index;
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if (count <= 0) {
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return 0; // nothing to do
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}
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srandom(time(NULL));
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XClearArea(g_disp, g_win, 0, 0, g_winWidth, g_winHeight, 0);
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for (i = 0, index = 0; i < count; i++)
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{
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x1 = random() % g_winWidth;
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y1 = random() % g_winHeight;
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x2 = random() % g_winWidth;
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y2 = random() % g_winHeight;
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XSetForeground(g_disp, g_gc, g_colors[index++].pixel);
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if (index == MAX_COLORS) {
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index = 0;
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}
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// from-to
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XDrawLine(g_disp, g_win, g_gc, x1, y1, x2, y2);
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XFlush(g_disp);
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usleep(g_delay_dur);
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}
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return 0;
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}
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// LK_TODO support user defined w and h
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int drawRectangles(int count)
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{
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int x1;
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int y1;
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int w;
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int h;
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int i;
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int index;
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if (count <= 0) {
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return 0; // nothing to do
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}
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srandom(time(NULL));
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XClearArea(g_disp, g_win, 0, 0, g_winWidth, g_winHeight, 0);
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for (i = 0, index = 0; i < count; i++)
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{
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x1 = random() % g_winWidth;
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y1 = random() % g_winHeight;
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w = 160;
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h = 140;
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XSetForeground(g_disp, g_gc, g_colors[index++].pixel);
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if (index == MAX_COLORS) {
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index = 0;
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}
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//XDrawRectangle(g_disp, g_win, g_gc, x1, y1, w, h);
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XFillRectangle(g_disp, g_win, g_gc, x1, y1, w, h);
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XFlush(g_disp);
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usleep(g_delay_dur);
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}
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return 0;
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}
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int drawFont(int count, char *msg)
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{
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int x1;
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int y1;
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int i;
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int index;
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#ifdef CHANGE_FONT_SIZE
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int w;
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int h;
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int actual_count;
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char **font_list;
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#endif
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if (count <= 0) {
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return 0; // nothing to do
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}
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srandom(time(NULL));
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XClearArea(g_disp, g_win, 0, 0, g_winWidth, g_winHeight, 0);
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#ifdef CHANGE_FONT_SIZE
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font_list = XListFonts(g_disp, "−*−courier−*−*−*−*−0−0−*−*−*−0−*−*", 2000, &actual_count);
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if (!font_list) {
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printf("actual_count=%d\n", actual_count);
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for (i = 0; i < actual_count; i++)
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{
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printf("%s\n", font_list[i]);
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}
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XFreeFontNames(font_list);
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}
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else {
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printf("XListFonts() reted NULL\n");
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}
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#endif
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srandom(time(NULL));
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for (i = 0, index = 0; i < count; i++)
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{
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x1 = random() % g_winWidth;
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y1 = random() % g_winHeight;
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XSetForeground(g_disp, g_gc, g_colors[index++].pixel);
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if (index == MAX_COLORS) {
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index = 0;
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}
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XDrawString(g_disp, g_win, g_gc, x1, y1, msg, strlen(msg));
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XFlush(g_disp);
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usleep(g_delay_dur);
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}
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return 0; // nothing to do
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}
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/**
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* display a usage message
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*/
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void
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usage()
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{
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printf("usage: xdemo [-l] [-r] [-s] [-f <string>] [-i <image file>] [-g <WxH>] [-c <count>] [-o <scroll type>] [-d <delay>] -z\n");
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printf(" -l draw lines\n");
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printf(" -r draw fill rectangles\n");
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printf(" -s draw stipple rectangles\n");
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printf(" -f <string> draw string using fonts\n");
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printf(" -i <image file> draw image\n");
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printf(" -g <WxH> geometry, default is 640x480\n");
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printf(" -c <count> iteration count, default is 5000\n");
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printf(" -d <delay> loop delay in micro seconds, default 1000\n");
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printf(" -o <jump|smooth1|smooth2> define scrolling method\n");
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printf(" -z <proxy_app> zero proxy counters for specified application\n\n");
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}
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int main(int argc, char **argv)
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{
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XEvent evt;
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Colormap colormap;
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struct timeval tv;
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int screenNumber;
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long eventMask;
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unsigned long white;
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unsigned long black;
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Status rc;
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int iters;
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int opt;
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int draw_lines;
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int draw_rects;
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int draw_stipples;
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int draw_fonts;
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int draw_image;
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int zero_counters;
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int scroll_type;
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char image_file[256];
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char proxy_app[256];
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char msg[4096];
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// set some defaults
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g_winWidth = 640;
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g_winHeight = 480;
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iters = 5000;
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draw_lines = 1;
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draw_rects = 1;
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draw_stipples = 1;
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draw_fonts = 1;
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draw_image = 1;
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g_delay_dur = 1000;
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scroll_type = SCROLL_SMOOTH1;
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zero_counters = 0;
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strcpy(image_file, "yosemite.bmp");
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strcpy(msg, "To be or not to be!");
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// process cmd line args
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opterr = 0;
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while ((opt = getopt(argc, argv, "lrsg:c:f:i:d:o:z:")) != -1)
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{
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switch (opt)
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{
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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;
|
||||
}
|
||||
|
||||
BIN
tests/xdemo/yosemite.bmp
Normal file
BIN
tests/xdemo/yosemite.bmp
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 1.8 MiB |
Loading…
Reference in New Issue
Block a user