1 #include <stdlib.h>

     2 #include <assert.h>

     3 

     4 #include "common.h"

     5 #include "render_internal.h"

     6 #include "render_local.h"

     7 #include "render_png.h"

     8 #include "mandelbrot.h"

     9 

    10 int render_local (struct render *render, double *duration) {

    11     assert(render->mode == RENDER_PNG);

    12 

    13     unsigned char *rowbuf = NULL;

    14     struct render_png *png_ctx = NULL;

    15 

    16     *duration = -1;

    17 

    18     // alloc the memory buffer

    19     if (!(rowbuf = malloc(render->img_w)))

    20         ERROR("malloc");

    21  

    22     // the render_png stuff

    23     if (!(png_ctx = render_png_init(render)))

    24         ERROR("render_png_init");

    25     

    26     //  set render_* to use it

    27     if (render_local_mem(render, &rowbuf, (int(*)(void *arg, unsigned char *)) &render_png_row, png_ctx))

    28         ERROR("render_local_mem");

    29    

    30     // then we can actually render

    31     if (duration ? render_mandelbrot_timed(render, duration) : render_mandelbrot(render))

    32         ERROR("render_mandelbrot");

    33 

    34     // success

    35     return 0;

    36 

    37 error:

    38     free(rowbuf);

    39     free(png_ctx);

    40 

    41     return -1;

    42 }

    43