author | Tero Marttila <terom@fixme.fi> |
Sat, 07 Jun 2008 05:18:06 +0300 | |
changeset 14 | 5a2246f5be78 |
parent 12 | 43297144f196 |
child 18 | 86f2e5b7191b |
permissions | -rw-r--r-- |
12
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
changeset
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43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
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#include "common.h" |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
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#include "render_internal.h" |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
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#include "render_mandelbrot.h" |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
changeset
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43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
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#define DETAIL 255 |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
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43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
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#define absdelta(a, b) (a>b ? a-b : b-a) |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
changeset
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43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
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int render_mandelbrot (struct render *ctx) { |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
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// render algorithm vars |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
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u_int32_t img_x, img_y; |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
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double x0, y0, x, y, _x, _y, w_scale, h_scale; |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
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u_int8_t iter; |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
changeset
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|
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
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// calcluate the scale factors |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
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w_scale = ctx->img_w/absdelta(ctx->x1, ctx->x2); |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
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h_scale = ctx->img_h/absdelta(ctx->y1, ctx->y2); |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
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|
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
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// start rendering! |
43297144f196
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Tero Marttila <terom@fixme.fi>
parents:
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for (img_y=0; img_y < ctx->img_h; img_y++) { |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
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// render the current row |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
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for (img_x=0; img_x < ctx->img_w; img_x++) { |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
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x = 0; |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
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y = 0; |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
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x0 = img_x/w_scale + ctx->x1; |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
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y0 = img_y/h_scale + ctx->y1; |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
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iter = DETAIL; |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
changeset
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43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
changeset
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while (x*x + y*y < (2*2) && iter > 0) { |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
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_x = x*x - y*y + x0; |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
changeset
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_y = 2*x*y + y0; |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
changeset
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43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
changeset
|
34 |
x = _x; |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
changeset
|
35 |
y = _y; |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
changeset
|
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43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
changeset
|
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iter--; |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
changeset
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} |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
changeset
|
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|
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
changeset
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(*ctx->local_rowbuf_addr)[img_x] = iter; |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
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} |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
changeset
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43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
changeset
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// row cb |
43297144f196
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Tero Marttila <terom@fixme.fi>
parents:
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if (ctx->local_row_fn(ctx->cb_arg, (*ctx->local_rowbuf_addr))) |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
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ERROR("local_row_fn"); |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
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} |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
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43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
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// return succesfully |
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Tero Marttila <terom@fixme.fi>
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return 0; |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
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43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
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error: |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
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return -1; |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
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} |
43297144f196
* rename files, render_file -> file_main, render_node -> node_main, mandelbrot -> render_mandelbrot
Tero Marttila <terom@fixme.fi>
parents:
diff
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