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