mirror of https://github.com/mpv-player/mpv
276 lines
12 KiB
C
276 lines
12 KiB
C
/*
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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 modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with mpv. If not, see <http://www.gnu.org/licenses/>.
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*
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* You can alternatively redistribute this file 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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#ifndef MPLAYER_GL_COMMON_H
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#define MPLAYER_GL_COMMON_H
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#include <stdio.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include "config.h"
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#include "common/msg.h"
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#include "misc/bstr.h"
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#include "video/out/vo.h"
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#include "video/csputils.h"
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#include "video/mp_image.h"
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#if HAVE_GL_COCOA
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#define GL_DO_NOT_WARN_IF_MULTI_GL_VERSION_HEADERS_INCLUDED 1
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#include <OpenGL/gl.h>
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#include <OpenGL/gl3.h>
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#include <OpenGL/glext.h>
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#else
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#include <GL/gl.h>
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#include <GL/glext.h>
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#endif
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#define MP_GET_GL_WORKAROUNDS
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#include "header_fixes.h"
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struct GL;
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typedef struct GL GL;
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enum {
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MPGL_CAP_ROW_LENGTH = (1 << 4), // GL_[UN]PACK_ROW_LENGTH
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MPGL_CAP_FB = (1 << 5),
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MPGL_CAP_VAO = (1 << 6),
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MPGL_CAP_FLOAT_TEX = (1 << 9),
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MPGL_CAP_TEX_RG = (1 << 10), // GL_ARB_texture_rg / GL 3.x
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MPGL_CAP_VDPAU = (1 << 11), // GL_NV_vdpau_interop
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MPGL_CAP_APPLE_RGB_422 = (1 << 12), // GL_APPLE_rgb_422
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MPGL_CAP_1D_TEX = (1 << 14),
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MPGL_CAP_3D_TEX = (1 << 15),
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MPGL_CAP_DEBUG = (1 << 16),
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MPGL_CAP_SW = (1 << 30), // indirect or sw renderer
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};
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// E.g. 310 means 3.1
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// Code doesn't have to use the macros; they are for convenience only.
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#define MPGL_VER(major, minor) (((major) * 100) + (minor) * 10)
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#define MPGL_VER_GET_MAJOR(ver) ((unsigned)(ver) / 100)
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#define MPGL_VER_GET_MINOR(ver) ((unsigned)(ver) % 100 / 10)
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#define MPGL_VER_P(ver) MPGL_VER_GET_MAJOR(ver), MPGL_VER_GET_MINOR(ver)
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enum {
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VOFLAG_GLES = 1 << 0, // Hint to prefer GLES2 if possible
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VOFLAG_GL_DEBUG = 1 << 1, // Hint to request debug OpenGL context
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VOFLAG_ALPHA = 1 << 2, // Hint to request alpha framebuffer
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VOFLAG_SW = 1 << 3, // Hint to accept a software GL renderer
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};
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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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// Bit size of each component in the created framebuffer. 0 if unknown.
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int depth_r, depth_g, depth_b;
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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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// 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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void mpgl_load_functions(GL *gl, void *(*getProcAddress)(const GLubyte *),
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const char *ext2, struct mp_log *log);
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void mpgl_load_functions2(GL *gl, void *(*get_fn)(void *ctx, const char *n),
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void *fn_ctx, const char *ext2, struct mp_log *log);
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typedef void (GLAPIENTRY *MP_GLDEBUGPROC)(GLenum, GLenum, GLuint, GLenum,
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GLsizei, const GLchar *,const void *);
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//function pointers loaded from the OpenGL library
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struct GL {
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int version; // MPGL_VER() mangled (e.g. 210 for 2.1)
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int es; // es version (e.g. 300), 0 for desktop GL
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int glsl_version; // e.g. 130 for GLSL 1.30
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char *extensions; // Equivalent to GL_EXTENSIONS
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int mpgl_caps; // Bitfield of MPGL_CAP_* constants
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bool debug_context; // use of e.g. GLX_CONTEXT_DEBUG_BIT_ARB
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void (GLAPIENTRY *Viewport)(GLint, GLint, GLsizei, GLsizei);
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void (GLAPIENTRY *Clear)(GLbitfield);
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void (GLAPIENTRY *GenTextures)(GLsizei, GLuint *);
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void (GLAPIENTRY *DeleteTextures)(GLsizei, const GLuint *);
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void (GLAPIENTRY *ClearColor)(GLclampf, GLclampf, GLclampf, GLclampf);
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void (GLAPIENTRY *Enable)(GLenum);
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void (GLAPIENTRY *Disable)(GLenum);
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const GLubyte *(GLAPIENTRY * GetString)(GLenum);
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void (GLAPIENTRY *DrawBuffer)(GLenum);
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void (GLAPIENTRY *BlendFuncSeparate)(GLenum, GLenum, GLenum, GLenum);
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void (GLAPIENTRY *Flush)(void);
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void (GLAPIENTRY *Finish)(void);
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void (GLAPIENTRY *PixelStorei)(GLenum, GLint);
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void (GLAPIENTRY *TexImage1D)(GLenum, GLint, GLint, GLsizei, GLint,
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GLenum, GLenum, const GLvoid *);
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void (GLAPIENTRY *TexImage2D)(GLenum, GLint, GLint, GLsizei, GLsizei,
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GLint, GLenum, GLenum, const GLvoid *);
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void (GLAPIENTRY *TexSubImage2D)(GLenum, GLint, GLint, GLint,
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GLsizei, GLsizei, GLenum, GLenum,
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const GLvoid *);
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void (GLAPIENTRY *TexParameteri)(GLenum, GLenum, GLint);
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void (GLAPIENTRY *GetIntegerv)(GLenum, GLint *);
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void (GLAPIENTRY *ReadPixels)(GLint, GLint, GLsizei, GLsizei, GLenum,
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GLenum, GLvoid *);
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void (GLAPIENTRY *ReadBuffer)(GLenum);
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void (GLAPIENTRY *DrawArrays)(GLenum, GLint, GLsizei);
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GLenum (GLAPIENTRY *GetError)(void);
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void (GLAPIENTRY *GetTexLevelParameteriv)(GLenum, GLint, GLenum, GLint *);
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void (GLAPIENTRY *GenBuffers)(GLsizei, GLuint *);
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void (GLAPIENTRY *DeleteBuffers)(GLsizei, const GLuint *);
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void (GLAPIENTRY *BindBuffer)(GLenum, GLuint);
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void (GLAPIENTRY *BindBufferBase)(GLenum, GLuint, GLuint);
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GLvoid * (GLAPIENTRY * MapBuffer)(GLenum, GLenum);
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GLboolean (GLAPIENTRY *UnmapBuffer)(GLenum);
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void (GLAPIENTRY *BufferData)(GLenum, intptr_t, const GLvoid *, GLenum);
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void (GLAPIENTRY *ActiveTexture)(GLenum);
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void (GLAPIENTRY *BindTexture)(GLenum, GLuint);
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int (GLAPIENTRY *SwapInterval)(int);
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void (GLAPIENTRY *TexImage3D)(GLenum, GLint, GLenum, GLsizei, GLsizei,
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GLsizei, GLint, GLenum, GLenum,
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const GLvoid *);
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void (GLAPIENTRY *GenVertexArrays)(GLsizei, GLuint *);
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void (GLAPIENTRY *BindVertexArray)(GLuint);
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GLint (GLAPIENTRY *GetAttribLocation)(GLuint, const GLchar *);
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void (GLAPIENTRY *EnableVertexAttribArray)(GLuint);
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void (GLAPIENTRY *DisableVertexAttribArray)(GLuint);
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void (GLAPIENTRY *VertexAttribPointer)(GLuint, GLint, GLenum, GLboolean,
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GLsizei, const GLvoid *);
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void (GLAPIENTRY *DeleteVertexArrays)(GLsizei, const GLuint *);
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void (GLAPIENTRY *UseProgram)(GLuint);
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GLint (GLAPIENTRY *GetUniformLocation)(GLuint, const GLchar *);
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void (GLAPIENTRY *CompileShader)(GLuint);
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GLuint (GLAPIENTRY *CreateProgram)(void);
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GLuint (GLAPIENTRY *CreateShader)(GLenum);
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void (GLAPIENTRY *ShaderSource)(GLuint, GLsizei, const GLchar **,
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const GLint *);
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void (GLAPIENTRY *LinkProgram)(GLuint);
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void (GLAPIENTRY *AttachShader)(GLuint, GLuint);
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void (GLAPIENTRY *DeleteShader)(GLuint);
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void (GLAPIENTRY *DeleteProgram)(GLuint);
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void (GLAPIENTRY *GetShaderInfoLog)(GLuint, GLsizei, GLsizei *, GLchar *);
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void (GLAPIENTRY *GetShaderiv)(GLuint, GLenum, GLint *);
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void (GLAPIENTRY *GetProgramInfoLog)(GLuint, GLsizei, GLsizei *, GLchar *);
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void (GLAPIENTRY *GetProgramiv)(GLenum, GLenum, GLint *);
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const GLubyte* (GLAPIENTRY *GetStringi)(GLenum, GLuint);
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void (GLAPIENTRY *BindAttribLocation)(GLuint, GLuint, const GLchar *);
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void (GLAPIENTRY *BindFramebuffer)(GLenum, GLuint);
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void (GLAPIENTRY *GenFramebuffers)(GLsizei, GLuint *);
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void (GLAPIENTRY *DeleteFramebuffers)(GLsizei, const GLuint *);
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GLenum (GLAPIENTRY *CheckFramebufferStatus)(GLenum);
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void (GLAPIENTRY *FramebufferTexture2D)(GLenum, GLenum, GLenum, GLuint,
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GLint);
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void (GLAPIENTRY *BlitFramebuffer)(GLint, GLint, GLint, GLint, GLint, GLint,
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GLint, GLint, GLbitfield, GLenum);
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void (GLAPIENTRY *Uniform1f)(GLint, GLfloat);
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void (GLAPIENTRY *Uniform2f)(GLint, GLfloat, GLfloat);
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void (GLAPIENTRY *Uniform3f)(GLint, GLfloat, GLfloat, GLfloat);
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void (GLAPIENTRY *Uniform4f)(GLint, GLfloat, GLfloat, GLfloat, GLfloat);
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void (GLAPIENTRY *Uniform1i)(GLint, GLint);
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void (GLAPIENTRY *UniformMatrix2fv)(GLint, GLsizei, GLboolean,
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const GLfloat *);
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void (GLAPIENTRY *UniformMatrix3fv)(GLint, GLsizei, GLboolean,
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const GLfloat *);
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GLsync (GLAPIENTRY *FenceSync)(GLenum, GLbitfield);
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GLenum (GLAPIENTRY *ClientWaitSync)(GLsync, GLbitfield, GLuint64);
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void (GLAPIENTRY *DeleteSync)(GLsync sync);
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void (GLAPIENTRY *VDPAUInitNV)(const GLvoid *, const GLvoid *);
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void (GLAPIENTRY *VDPAUFiniNV)(void);
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GLvdpauSurfaceNV (GLAPIENTRY *VDPAURegisterOutputSurfaceNV)
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(GLvoid *, GLenum, GLsizei, const GLuint *);
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void (GLAPIENTRY *VDPAUUnregisterSurfaceNV)(GLvdpauSurfaceNV);
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void (GLAPIENTRY *VDPAUSurfaceAccessNV)(GLvdpauSurfaceNV, GLenum);
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void (GLAPIENTRY *VDPAUMapSurfacesNV)(GLsizei, const GLvdpauSurfaceNV *);
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void (GLAPIENTRY *VDPAUUnmapSurfacesNV)(GLsizei, const GLvdpauSurfaceNV *);
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GLint (GLAPIENTRY *GetVideoSync)(GLuint *);
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GLint (GLAPIENTRY *WaitVideoSync)(GLint, GLint, unsigned int *);
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GLuint (GLAPIENTRY *GetUniformBlockIndex)(GLuint, const GLchar *);
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void (GLAPIENTRY *UniformBlockBinding)(GLuint, GLuint, GLuint);
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void (GLAPIENTRY *DebugMessageCallback)(MP_GLDEBUGPROC callback,
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const void *userParam);
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void *(GLAPIENTRY *MPGetNativeDisplay)(const char *name);
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};
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#endif /* MPLAYER_GL_COMMON_H */
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