mirror of https://github.com/mpv-player/mpv
102 lines
3.5 KiB
C
102 lines
3.5 KiB
C
/*
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* common OpenGL routines
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*
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* copyleft (C) 2005-2010 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
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* Special thanks go to the xine team and Matthias Hopf, whose video_out_opengl.c
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* gave me lots of good ideas.
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*
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* This file is part of mpv.
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*
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* mpv is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* mpv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MP_GL_CONTEXT_H_
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#define MP_GL_CONTEXT_H_
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#include "common.h"
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enum {
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VOFLAG_GLES = 1 << 0, // Hint to create a GLES2 context
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VOFLAG_NO_GLES = 1 << 1, // Hint to create a desktop GL context
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VOFLAG_GL_DEBUG = 1 << 2, // Hint to request debug OpenGL context
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VOFLAG_ALPHA = 1 << 3, // Hint to request alpha framebuffer
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VOFLAG_SW = 1 << 4, // Hint to accept a software GL renderer
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};
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extern const int mpgl_preferred_gl_versions[];
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struct MPGLContext;
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// A windowing backend (like X11, win32, ...), which provides OpenGL rendering.
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struct mpgl_driver {
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const char *name;
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// Size of the struct allocated for MPGLContext.priv
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int priv_size;
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// Init the GL context and possibly the underlying VO backend.
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// The created context should be compatible to GL 3.2 core profile, but
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// some other GL versions are supported as well (e.g. GL 2.1 or GLES 2).
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// Return 0 on success, negative value (-1) on error.
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int (*init)(struct MPGLContext *ctx, int vo_flags);
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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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// Return 0 on success, negative value (-1) on error.
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int (*reconfig)(struct MPGLContext *ctx);
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// Present the frame.
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void (*swap_buffers)(struct MPGLContext *ctx);
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// This behaves exactly like vo_driver.control().
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int (*control)(struct MPGLContext *ctx, int *events, int request, void *arg);
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// Destroy the GL context and possibly the underlying VO backend.
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void (*uninit)(struct MPGLContext *ctx);
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};
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typedef struct MPGLContext {
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GL *gl;
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struct vo *vo;
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const struct mpgl_driver *driver;
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// For hwdec_vaegl.c.
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const char *native_display_type;
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void *native_display;
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// Windows-specific hack. See vo_opengl dwmflush suboption.
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int dwm_flush_opt;
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// Flip the rendered image vertically. This is useful for dxinterop.
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bool flip_v;
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// For free use by the mpgl_driver.
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void *priv;
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} MPGLContext;
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MPGLContext *mpgl_init(struct vo *vo, const char *backend_name, int vo_flags);
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void mpgl_uninit(MPGLContext *ctx);
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int mpgl_reconfig_window(struct MPGLContext *ctx);
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int mpgl_control(struct MPGLContext *ctx, int *events, int request, void *arg);
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void mpgl_swap_buffers(struct MPGLContext *ctx);
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int mpgl_find_backend(const char *name);
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struct m_option;
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int mpgl_validate_backend_opt(struct mp_log *log, const struct m_option *opt,
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struct bstr name, struct bstr param);
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#endif
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