mirror of https://github.com/mpv-player/mpv
115 lines
3.4 KiB
C
115 lines
3.4 KiB
C
#include "common.h"
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#include "context.h"
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#include "ra_gl.h"
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#include "options/m_config.h"
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#include "libmpv/render_gl.h"
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#include "video/out/gpu/libmpv_gpu.h"
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#include "video/out/gpu/ra.h"
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struct priv {
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GL *gl;
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struct ra_ctx *ra_ctx;
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};
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static int init(struct libmpv_gpu_context *ctx, mpv_render_param *params)
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{
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ctx->priv = talloc_zero(NULL, struct priv);
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struct priv *p = ctx->priv;
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mpv_opengl_init_params *init_params =
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get_mpv_render_param(params, MPV_RENDER_PARAM_OPENGL_INIT_PARAMS, NULL);
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if (!init_params)
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return MPV_ERROR_INVALID_PARAMETER;
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p->gl = talloc_zero(p, GL);
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mpgl_load_functions2(p->gl, init_params->get_proc_address,
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init_params->get_proc_address_ctx,
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NULL, ctx->log);
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if (!p->gl->version && !p->gl->es) {
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MP_FATAL(ctx, "OpenGL not initialized.\n");
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return MPV_ERROR_UNSUPPORTED;
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}
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// initialize a blank ra_ctx to reuse ra_gl_ctx
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p->ra_ctx = talloc_zero(p, struct ra_ctx);
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p->ra_ctx->log = ctx->log;
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p->ra_ctx->global = ctx->global;
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p->ra_ctx->opts = (struct ra_ctx_opts) {
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.allow_sw = true,
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};
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static const struct ra_swapchain_fns empty_swapchain_fns = {0};
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struct ra_gl_ctx_params gl_params = {
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// vo_libmpv is essentially like a gigantic external swapchain where
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// the user is in charge of presentation / swapping etc. But we don't
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// actually need to provide any of these functions, since we can just
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// not call them to begin with - so just set it to an empty object to
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// signal to ra_gl_p that we don't care about its latency emulation
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// functionality
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.external_swapchain = &empty_swapchain_fns
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};
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p->gl->SwapInterval = NULL; // we shouldn't randomly change this, so lock it
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if (!ra_gl_ctx_init(p->ra_ctx, p->gl, gl_params))
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return MPV_ERROR_UNSUPPORTED;
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bool debug;
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mp_read_option_raw(ctx->global, "gpu-debug", &m_option_type_bool, &debug);
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p->ra_ctx->opts.debug = debug;
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p->gl->debug_context = debug;
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ra_gl_set_debug(p->ra_ctx->ra, debug);
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ctx->ra = p->ra_ctx->ra;
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return 0;
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}
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static int wrap_fbo(struct libmpv_gpu_context *ctx, mpv_render_param *params,
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struct ra_tex **out)
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{
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struct priv *p = ctx->priv;
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mpv_opengl_fbo *fbo =
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get_mpv_render_param(params, MPV_RENDER_PARAM_OPENGL_FBO, NULL);
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if (!fbo)
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return MPV_ERROR_INVALID_PARAMETER;
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if (fbo->fbo && !(p->gl->mpgl_caps & MPGL_CAP_FB)) {
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MP_FATAL(ctx, "Rendering to FBO requested, but no FBO extension found!\n");
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return MPV_ERROR_UNSUPPORTED;
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}
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struct ra_swapchain *sw = p->ra_ctx->swapchain;
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struct ra_fbo target;
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ra_gl_ctx_resize(sw, fbo->w, fbo->h, fbo->fbo);
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ra_gl_ctx_start_frame(sw, &target);
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*out = target.tex;
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return 0;
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}
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static void done_frame(struct libmpv_gpu_context *ctx, bool ds)
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{
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struct priv *p = ctx->priv;
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struct ra_swapchain *sw = p->ra_ctx->swapchain;
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struct vo_frame dummy = {.display_synced = ds};
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ra_gl_ctx_submit_frame(sw, &dummy);
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}
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static void destroy(struct libmpv_gpu_context *ctx)
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{
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struct priv *p = ctx->priv;
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if (p->ra_ctx)
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ra_gl_ctx_uninit(p->ra_ctx);
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}
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const struct libmpv_gpu_context_fns libmpv_gpu_context_gl = {
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.api_name = MPV_RENDER_API_TYPE_OPENGL,
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.init = init,
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.wrap_fbo = wrap_fbo,
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.done_frame = done_frame,
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.destroy = destroy,
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};
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