render.c
author Tero Marttila <terom@fixme.fi>
Sat, 31 May 2008 19:35:21 +0300
changeset 2 69f8c0acaac7
parent 1 6aa1a0d1f88d
child 11 082bfaf38cf0
permissions -rw-r--r--
working web_main that uses render_remote

committer: Tero Marttila <terom@fixme.fi>
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#include <string.h>
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#include <arpa/inet.h>
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#include "render.h"
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int render_init (render_t *ctx, int mode) {
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    memset(ctx, 0, sizeof(*ctx));
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    return render_set_mode(ctx, mode);
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}
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int render_set_mode (render_t *ctx, int mode) {
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    if (mode != RENDER_RAW && mode != RENDER_PNG)
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        return RENDER_ERR;
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    ctx->mode = mode;
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    return RENDER_OK;
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}
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int render_set_size (render_t *ctx, u_int32_t img_w, u_int32_t img_h) {
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    if (img_w == 0 || img_h == 0)
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        return RENDER_ERR;
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    ctx->img_w = img_w;
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    ctx->img_h = img_h;
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    return RENDER_OK;
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}
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int render_region_full (render_t *ctx) {
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    return render_region_raw(ctx, REGION_X1, REGION_Y1, REGION_X2, REGION_Y2);
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}
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int render_region_raw (render_t *ctx, double x1, double y1, double x2, double y2) {
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    if ((x1 >= x2) || (y1 >= y2))
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        return RENDER_ERR;
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    ctx->x1 = x1;
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    ctx->y1 = y1;
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    ctx->x2 = x2;
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    ctx->y2 = y2;
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    return RENDER_OK;
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}
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int render_io_custom (render_t *ctx, render_ctx_write_cb write_fn, render_ctx_flush_cb flush_fn, void *arg) {
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    if (!write_fn)
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        return RENDER_ERR;
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    ctx->io_write_fn = write_fn;
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    ctx->io_flush_fn = flush_fn;
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    ctx->io_cb_arg = arg;
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    return RENDER_OK;
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}
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int render_io_stream (render_t *ctx, FILE *fh) {
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    if (!fh)
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        return RENDER_ERR;
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    ctx->io_stream = fh;
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    return RENDER_OK;
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}
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