forked from tTh/FloatImg
144 lines
3.0 KiB
C
144 lines
3.0 KiB
C
/*
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* UGLY CODE INSIDE
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include "../floatimg.h"
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#include "funcs.h"
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extern int verbosity;
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/*
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* Be careful, these functions are not yet fireproof,
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* and calling conventions are fluctuating.
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*/
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/* --------------------------------------------------------------------- */
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int x_upscaler_0(unsigned char *src, int w, int h, FloatImg *d)
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{
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int x, y, xx, yy, ox, oy;
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// float *rp, *gp, *bp;
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float r, g, b;
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static unsigned short modz;
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/*
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* check in image sizes are correct
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*/
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if ( d->width != w*2 || d->height != h*2 ) {
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fprintf(stderr, "%s: dimension error\n", __func__);
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fprintf(stderr, "\tw = %d h = %d\n", w, h);
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fprintf(stderr, "\tdest image is %dx%d\n", d->width, d->height);
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#if MUST_ABORT
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abort();
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#endif
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return -2;
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}
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ox = ! ! (modz & 2);
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oy = ! ! (modz & 1);
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if (verbosity>2) fprintf(stderr, "%s %5d %d %d\n", __func__,
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modz, ox, oy);
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for (y=0; y<h; y++) {
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yy = (y*2) + oy;
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for (x=0; x<w; x++) {
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xx = (x*2) + ox;
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r = (float)*src++;
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g = (float)*src++;
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b = (float)*src++;
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/* may be, here, we can speed up the job */
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fimg_add_rgb(d, xx, yy, r, g, b);
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/* or may be jump directly to asm and SSE2
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http://www.mikekohn.net/stuff/image_processing.php */
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}
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}
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modz++; /* next displacment index */
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if ( ! (modz & 0x03)) {
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d->count++; /* one more frame in the accumulator */
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}
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return -1;
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}
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/* --------------------------------------------------------------------- */
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int x_rgb2fimg(unsigned char *src, int w, int h, FloatImg *d)
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{
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int iter, size;
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float *rp, *gp, *bp;
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size = w * h;
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rp = d->R, gp = d->G, bp = d->B;
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for (iter=0; iter<size; iter++) {
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*rp++ = (float)*src++;
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*gp++ = (float)*src++;
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*bp++ = (float)*src++;
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}
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return 0;
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}
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/* --------------------------------------------------------------------- */
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int x_add_rgb2fimg(unsigned char *src, int w, int h, FloatImg *d)
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{
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int iter, size;
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float *rp, *gp, *bp;
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#if DEBUG_LEVEL
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fprintf(stderr, ">>> %s ( %p %d %d %p )\n", __func__,
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src, w, h, d);
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#endif
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size = w * h;
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rp = d->R, gp = d->G, bp = d->B;
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for (iter=0; iter<size; iter++) {
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*rp++ += (float)*src++;
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*gp++ += (float)*src++;
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*bp++ += (float)*src++;
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}
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d->count++; /* one more frame in the accumulator */
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return 0;
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}
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/* --------------------------------------------------------------------- */
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int x_rgb2file(unsigned char *src, int w, int h, char *fname)
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{
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FloatImg buff;
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int foo;
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#if DEBUG_LEVEL
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fprintf(stderr, ">>> %s ( %p %d %d '%s' )\n", __func__,
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src, w, h, fname);
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#endif
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foo = fimg_create(&buff, w, h, FIMG_TYPE_RGB);
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if (foo) {
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fprintf(stderr, "Crash on create in %s %s\n", __FILE__, __func__);
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exit(1);
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}
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foo = x_rgb2fimg(src, w, h, &buff);
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if (foo) {
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fprintf(stderr, "Crash on bit massage in %s %s\n", __FILE__, __func__);
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exit(1);
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}
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foo = fimg_dump_to_file(&buff, fname, 0);
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if (foo) {
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fprintf(stderr, "Crash on dump in %s %s\n", __FILE__, __func__);
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exit(1);
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}
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fimg_destroy(&buff);
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return -1;
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}
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/* --------------------------------------------------------------------- */
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