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🎥 Command line media player
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102#pragma once
#include "video/out/vo.h"
#include "config.h"#include "ra.h"
struct ra_ctx_opts { int allow_sw; // allow software renderers int want_alpha; // create an alpha framebuffer if possible int debug; // enable debugging layers/callbacks etc. bool probing; // the backend was auto-probed int swapchain_depth; // max number of images to render ahead};
struct ra_ctx { struct vo *vo; struct ra *ra; struct mpv_global *global; struct mp_log *log;
struct ra_ctx_opts opts; const struct ra_ctx_fns *fns; struct ra_swapchain *swapchain; struct spirv_compiler *spirv;
void *priv;};
// The functions that make up a ra_ctx.struct ra_ctx_fns { const char *type; // API type (for --gpu-api) const char *name; // name (for --gpu-context)
// Resize the window, or create a new window if there isn't one yet. // Currently, there is an unfortunate interaction with ctx->vo, and // display size etc. are determined by it. bool (*reconfig)(struct ra_ctx *ctx);
// This behaves exactly like vo_driver.control(). int (*control)(struct ra_ctx *ctx, int *events, int request, void *arg);
// These behave exactly like vo_driver.wakeup/wait_events. They are // optional. void (*wakeup)(struct ra_ctx *ctx); void (*wait_events)(struct ra_ctx *ctx, int64_t until_time_us);
// Initialize/destroy the 'struct ra' and possibly the underlying VO backend. // Not normally called by the user of the ra_ctx. bool (*init)(struct ra_ctx *ctx); void (*uninit)(struct ra_ctx *ctx);};
// Extra struct for the swapchain-related functions so they can be easily// inherited from helpers.struct ra_swapchain { struct ra_ctx *ctx; struct priv *priv; const struct ra_swapchain_fns *fns;};
// Represents a framebuffer / render targetstruct ra_fbo { struct ra_tex *tex; bool flip; // rendering needs to be inverted};
struct ra_swapchain_fns { // Gets the current framebuffer depth in bits (0 if unknown). Optional. int (*color_depth)(struct ra_swapchain *sw);
// Retrieves a screenshot of the framebuffer. Optional. struct mp_image *(*screenshot)(struct ra_swapchain *sw);
// Called when rendering starts. Returns NULL on failure. This must be // followed by submit_frame, to submit the rendered frame. This function // can also fail sporadically, and such errors should be ignored unless // they persist. bool (*start_frame)(struct ra_swapchain *sw, struct ra_fbo *out_fbo);
// Present the frame. Issued in lockstep with start_frame, with rendering // commands in between. The `frame` is just there for timing data, for // swapchains smart enough to do something with it. bool (*submit_frame)(struct ra_swapchain *sw, const struct vo_frame *frame);
// Performs a buffer swap. This blocks for as long as necessary to meet // params.swapchain_depth, or until the next vblank (for vsynced contexts) void (*swap_buffers)(struct ra_swapchain *sw);};
// Create and destroy a ra_ctx. This also takes care of creating and destroying// the underlying `struct ra`, and perhaps the underlying VO backend.struct ra_ctx *ra_ctx_create(struct vo *vo, const char *context_type, const char *context_name, struct ra_ctx_opts opts);void ra_ctx_destroy(struct ra_ctx **ctx);
struct m_option;int ra_ctx_validate_api(struct mp_log *log, const struct m_option *opt, struct bstr name, struct bstr param);int ra_ctx_validate_context(struct mp_log *log, const struct m_option *opt, struct bstr name, struct bstr param);