terom@13: #include <stdlib.h>
terom@13: 
terom@13: #include "common.h"
terom@17: #include "render_struct.h"
terom@17: #include "render.h"
terom@17: #include "render_raw_struct.h"
terom@13: #include "render_raw.h"
terom@13: 
terom@13: 
terom@13: 
terom@17: int render_raw_deinit (struct render_raw *ctx) {
terom@17:     return 0;
terom@13: }
terom@13: 
terom@17: void render_raw_free (struct render_raw *ctx) {
terom@17:     render_raw_deinit(ctx);
terom@17:     
terom@17:     if (ctx->owned_by_me)
terom@17:         free(ctx);
terom@17: }
terom@13: 
terom@17: int render_raw_init (struct render_raw *ctx, struct render *render) {
terom@13:     // store some info from the struct render
terom@13:     ctx->img_w = render->img_w;
terom@13:     ctx->io_stream = render->io_stream;
terom@13:     ctx->io_write_fn = render->io_write_fn;
terom@13:     ctx->io_flush_fn = render->io_flush_fn;
terom@13:     ctx->cb_arg = render->cb_arg;
terom@13: 
terom@13:     // success
terom@17:     return 0;
terom@17: 
terom@17: /*
terom@17: error:
terom@17:     _render_raw_deinit(ctx);
terom@17:     return -1;
terom@17: */    
terom@17: }
terom@17: 
terom@17: struct render_raw *render_raw_alloc (struct render *render) {
terom@17:     struct render_raw *ctx = NULL;
terom@17: 
terom@17:     // calloc the render_png
terom@17:     if (!(ctx = calloc(1, sizeof(struct render_raw))))
terom@17:         ERROR("calloc");
terom@17:     
terom@17:     // mark it to be freed
terom@17:     ctx->owned_by_me = 1;
terom@17: 
terom@17:     // initialize
terom@17:     if (render_raw_init(ctx, render))
terom@17:         goto error;
terom@17: 
terom@13:     return ctx;
terom@13: 
terom@13: error:
terom@17:     render_raw_free(ctx);
terom@13:     return NULL;
terom@13: }
terom@13: 
terom@13: int render_raw_row (struct render_raw *ctx, unsigned char *rowbuf) {
terom@13:     // write it out
terom@13:     if (ctx->io_stream) {
terom@13:         if (fwrite(rowbuf, ctx->img_w, 1, ctx->io_stream) != 1)
terom@13:             PERROR("fwrite");
terom@13: 
terom@13:     } else if (ctx->io_write_fn) {
terom@13:         if (ctx->io_write_fn(rowbuf, ctx->img_w, ctx->cb_arg))
terom@13:             ERROR("io_write_fn");
terom@13: 
terom@13:     } else {
terom@13:         // ignore
terom@13:     }
terom@13: 
terom@13:     // success
terom@13:     return 0;
terom@13: 
terom@13: error:
terom@13:     // don't free it yet, raw_{done,abort} does that!
terom@13:     return -1;
terom@13: }
terom@13: 
terom@13: int render_raw_done (struct render_raw *ctx) {
terom@13:     // flush
terom@13:     if (ctx->io_stream) {
terom@13:         if (fflush(ctx->io_stream))
terom@13:             PERROR("fflush");
terom@13: 
terom@13:     } else if (ctx->io_flush_fn) {
terom@13:         if (ctx->io_flush_fn(ctx->cb_arg))
terom@13:             ERROR("io_flush_fn");
terom@13: 
terom@13:     } else {
terom@13:         // ignore
terom@13:     }
terom@13: 
terom@13:     // free everything
terom@17:     render_raw_free(ctx);
terom@13: 
terom@13:     // success
terom@13:     return 0;
terom@13: 
terom@13: error:
terom@17:     render_raw_free(ctx);
terom@13:     return -1;
terom@13: }
terom@13: 
terom@13: int render_raw_abort (struct render_raw *ctx) {
terom@13:     // just free it
terom@17:     render_raw_free(ctx);
terom@13: 
terom@13:     // success
terom@13:     return 0;
terom@13: }
terom@13: