103 lines
1.9 KiB
C
103 lines
1.9 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <stdint.h>
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#include <math.h>
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#include "../tthimage.h"
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/* ============================== */
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/* new Wed Aug 14 19:17:20 UTC 2024
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*
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* parameters :
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* ip: Image_Desc * of input picture
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* ix, iy: coordinate of the pixel in this pic.
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* op, ox, oy : same things for output picture
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*/
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#define PIXEL_COPY(ip, ix, iy, op, ox, oy) \
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do { \
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op->Rpix[oy][x] = ip->Rpix[y][x]; \
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op->Gpix[oy][x] = ip->Gpix[y][x]; \
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op->Bpix[oy][x] = ip->Bpix[y][x]; \
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} while (0)
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#define SZPIC 5777
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double tthi_dtime(void);
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void essai_pixcopy(int usemacro)
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{
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Image_Desc *alice, *bob;
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int x, y, foo;
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double T0, T1, perpix;
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long count;
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alice = Image_alloc(SZPIC, SZPIC, IMAGE_RGB);
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bob = Image_alloc(SZPIC, SZPIC, IMAGE_RGB);
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Image_pattern_000(alice, rand());
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T0 = tthi_dtime();
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count = 0L;
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if (usemacro) {
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for (y=0; y<SZPIC; y++) {
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for (x=0; x<SZPIC; x++) {
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PIXEL_COPY(alice, x, y, bob, x, y);
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count++;
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}
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}
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}
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else {
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for (y=0; y<SZPIC; y++) {
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for (x=0; x<SZPIC; x++) {
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Image_pixel_copy(alice, x, y, bob, x, y);
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count++;
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}
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}
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}
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T1 = tthi_dtime();
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foo = Image_TGA_save("bob.tga", bob, 0);
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if (foo) {
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fprintf(stderr, "%s: save -> %d\n", __func__, foo);
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}
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perpix = (T1-T0) / (double)count;
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fprintf(stderr, "%s : %10ld pixels, elapsed %9.6f seconds ==> %5.3g µs/ppix\n",
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usemacro ? "macro" : "func ",
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count, T1-T0, perpix);
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/* end */
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}
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/* ============================== */
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int main(int argc, char *argv[])
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{
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int i;
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fprintf(stderr, "******** %s is running *********\n", argv[0]);
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if (argc > 1) {
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fprintf(stderr, "argument: %s\n", argv[1]);
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Image_print_version(2);
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Image_print_sizeof_structs("foo");
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}
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else {
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for (i=0; i<5; i++) {
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essai_pixcopy(0);
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essai_pixcopy(1);
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}
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}
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/*
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foo = essai_show_t16x24(NULL);
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fprintf(stderr, "essai show t16x24 --> %d\n", foo);
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*/
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return 0;
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}
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