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#ifndef OFFSCREENCONTEXT_H_
#define OFFSCREENCONTEXT_H_
#include <iostream>
#include <fstream>
#include <string>
struct OffscreenContext *create_offscreen_context(int w, int h);
bool teardown_offscreen_context(OffscreenContext *ctx);
bool save_framebuffer(OffscreenContext *ctx, std::ostream &output);
std::string offscreen_context_getinfo(OffscreenContext *ctx);
void bind_offscreen_context(OffscreenContext *ctx)
{
if (ctx) fbo_bind(ctx->fbo);
}
/*
Capture framebuffer from OpenGL and write it to the given filename as PNG.
*/
inline bool save_framebuffer(OffscreenContext *ctx, const char *filename)
{
std::ofstream fstream(filename);
if (!fstream.is_open()) {
std::cerr << "Can't open file " << filename << " for writing";
return false;
} else {
save_framebuffer(ctx, fstream);
fstream.close();
}
return true;
}
#endif
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