terom@1: #include <string.h>
terom@1: #include <arpa/inet.h>
terom@1: 
terom@1: #include "render.h"
terom@1: 
terom@1: int render_init (render_t *ctx, int mode) {
terom@1:     memset(ctx, 0, sizeof(*ctx));
terom@1:     
terom@1:     return render_set_mode(ctx, mode);
terom@1: }
terom@1: 
terom@1: int render_set_mode (render_t *ctx, int mode) {
terom@1:     if (mode != RENDER_RAW && mode != RENDER_PNG)
terom@1:         return RENDER_ERR;
terom@1: 
terom@1:     ctx->mode = mode;
terom@1: 
terom@1:     return RENDER_OK;
terom@1: }
terom@1: 
terom@1: int render_set_size (render_t *ctx, u_int32_t img_w, u_int32_t img_h) {
terom@1:     if (img_w == 0 || img_h == 0)
terom@1:         return RENDER_ERR;
terom@1: 
terom@1:     ctx->img_w = img_w;
terom@1:     ctx->img_h = img_h;
terom@1: 
terom@1:     return RENDER_OK;
terom@1: }
terom@1: 
terom@1: int render_region_full (render_t *ctx) {
terom@1:     return render_region_raw(ctx, REGION_X1, REGION_Y1, REGION_X2, REGION_Y2);
terom@1: }
terom@1: 
terom@1: int render_region_raw (render_t *ctx, double x1, double y1, double x2, double y2) {
terom@1:     if ((x1 >= x2) || (y1 >= y2))
terom@1:         return RENDER_ERR;
terom@1: 
terom@1:     ctx->x1 = x1;
terom@1:     ctx->y1 = y1;
terom@1:     ctx->x2 = x2;
terom@1:     ctx->y2 = y2;
terom@1: 
terom@1:     return RENDER_OK;
terom@1: }
terom@1: 
terom@1: int render_io_custom (render_t *ctx, render_ctx_write_cb write_fn, render_ctx_flush_cb flush_fn, void *arg) {
terom@1:     if (!write_fn)
terom@1:         return RENDER_ERR;
terom@1: 
terom@1:     ctx->io_write_fn = write_fn;
terom@1:     ctx->io_flush_fn = flush_fn;
terom@1:     ctx->io_cb_arg = arg;
terom@1: 
terom@1:     return RENDER_OK;
terom@1: }
terom@1: 
terom@1: int render_io_stream (render_t *ctx, FILE *fh) {
terom@1:     if (!fh)
terom@1:         return RENDER_ERR;
terom@1: 
terom@1:     ctx->io_stream = fh;
terom@1: 
terom@1:     return RENDER_OK;
terom@1: }
terom@1: