render_local.c
author Tero Marttila <terom@fixme.fi>
Fri, 06 Jun 2008 23:37:45 +0300
changeset 12 43297144f196
parent 11 082bfaf38cf0
child 13 ee426f453cf5
permissions -rw-r--r--
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
* make the error message stuff in common a /lot/ neater (a single function and a set of macros)
* clean up rest of code to use those new macros

committer: Tero Marttila <terom@fixme.fi>
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#include <stdlib.h>
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#include <time.h>
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#include <assert.h>
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#include "common.h"
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#include "render_internal.h"
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#include "render_local.h"
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#include "render_png.h"
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#include "render_mandelbrot.h"
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int render_local (struct render *render, double *duration) {
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    assert(render->mode == RENDER_PNG);
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    unsigned char *rowbuf = NULL;
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    struct render_png *png_ctx = NULL;
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    clock_t t1, t2;
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    if (duration)
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        *duration = -1;
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    // alloc the memory buffer
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    if (!(rowbuf = malloc(render->img_w)))
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        ERROR("malloc");
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    // the render_png stuff
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    if (!(png_ctx = render_png_init(render)))
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        ERROR("render_png_init");
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    //  set render_* to use it
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    if (render_local_mem(render, &rowbuf, (int(*)(void *arg, unsigned char *)) &render_png_row, png_ctx))
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        ERROR("render_local_mem");
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    // then we can actually render
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    t1 = clock();
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    if (render_mandelbrot(render))
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        ERROR("render_mandelbrot");
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    t2 = clock();
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    // calculate the time taken
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    if (duration)
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        *duration = ((double)(t2 - t1))/CLOCKS_PER_SEC;
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    // success
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    return 0;
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error:
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    free(rowbuf);
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    free(png_ctx);
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    return -1;
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}
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