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8fb9cc2534
mpv/video/out/opengl/common.h
wm4 8fb9cc2534 vo_opengl: read framebuffer depth from actual FBO used for rendering 
In some cases, such as when using the libmpv opengl-cb API, or with
certain vo_opengl backends, the main framebuffer is never accessed.
Instead, rendering is done to a FBO that acts as back buffer. This meant
an incorrect/broken bit depth could be used for dithering.

Change it to read the framebuffer depth lazily on the first render call.

Also move the main FBO field out of the GL struct to MPGLContext,
because the renderer's init function does not need to access it anymore.
2017-03-20 13:31:28 +01:00

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/*
* This file is part of mpv.
*
* mpv is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* mpv is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef MPLAYER_GL_COMMON_H
#define MPLAYER_GL_COMMON_H
#include <stdio.h>
#include <stdint.h>
#include <stdbool.h>
#include "config.h"
#include "common/msg.h"
#include "misc/bstr.h"
#include "video/out/vo.h"
#include "video/csputils.h"
#include "video/mp_image.h"
#if HAVE_GL_COCOA
#define GL_DO_NOT_WARN_IF_MULTI_GL_VERSION_HEADERS_INCLUDED 1
#include <OpenGL/gl.h>
#include <OpenGL/gl3.h>
#include <OpenGL/glext.h>
#elif HAVE_IOS_GL
#include <OpenGLES/ES2/glext.h>
#include <OpenGLES/ES3/glext.h>
#elif HAVE_ANDROID_GL
#include <GLES3/gl3.h>
#else
#include <GL/gl.h>
#include <GL/glext.h>
#endif
#define MP_GET_GL_WORKAROUNDS
#include "header_fixes.h"
struct GL;
typedef struct GL GL;
enum {
MPGL_CAP_ROW_LENGTH = (1 << 4), // GL_[UN]PACK_ROW_LENGTH
MPGL_CAP_FB = (1 << 5),
MPGL_CAP_VAO = (1 << 6),
MPGL_CAP_TEX_RG = (1 << 10), // GL_ARB_texture_rg / GL 3.x
MPGL_CAP_VDPAU = (1 << 11), // GL_NV_vdpau_interop
MPGL_CAP_APPLE_RGB_422 = (1 << 12), // GL_APPLE_rgb_422
MPGL_CAP_1D_TEX = (1 << 14),
MPGL_CAP_3D_TEX = (1 << 15),
MPGL_CAP_DEBUG = (1 << 16),
MPGL_CAP_DXINTEROP = (1 << 17), // WGL_NV_DX_interop
MPGL_CAP_EXT16 = (1 << 18), // GL_EXT_texture_norm16
MPGL_CAP_ARB_FLOAT = (1 << 19), // GL_ARB_texture_float
MPGL_CAP_EXT_CR_HFLOAT = (1 << 20), // GL_EXT_color_buffer_half_float
MPGL_CAP_SW = (1 << 30), // indirect or sw renderer
};
// E.g. 310 means 3.1
// Code doesn't have to use the macros; they are for convenience only.
#define MPGL_VER(major, minor) (((major) * 100) + (minor) * 10)
#define MPGL_VER_GET_MAJOR(ver) ((unsigned)(ver) / 100)
#define MPGL_VER_GET_MINOR(ver) ((unsigned)(ver) % 100 / 10)
#define MPGL_VER_P(ver) MPGL_VER_GET_MAJOR(ver), MPGL_VER_GET_MINOR(ver)
void mpgl_load_functions(GL *gl, void *(*getProcAddress)(const GLubyte *),
const char *ext2, struct mp_log *log);
void mpgl_load_functions2(GL *gl, void *(*get_fn)(void *ctx, const char *n),
void *fn_ctx, const char *ext2, struct mp_log *log);
typedef void (GLAPIENTRY *MP_GLDEBUGPROC)(GLenum, GLenum, GLuint, GLenum,
GLsizei, const GLchar *,const void *);
//function pointers loaded from the OpenGL library
struct GL {
int version; // MPGL_VER() mangled (e.g. 210 for 2.1)
int es; // es version (e.g. 300), 0 for desktop GL
int glsl_version; // e.g. 130 for GLSL 1.30
char *extensions; // Equivalent to GL_EXTENSIONS
int mpgl_caps; // Bitfield of MPGL_CAP_* constants
bool debug_context; // use of e.g. GLX_CONTEXT_DEBUG_BIT_ARB
void (GLAPIENTRY *Viewport)(GLint, GLint, GLsizei, GLsizei);
void (GLAPIENTRY *Clear)(GLbitfield);
void (GLAPIENTRY *GenTextures)(GLsizei, GLuint *);
void (GLAPIENTRY *DeleteTextures)(GLsizei, const GLuint *);
void (GLAPIENTRY *ClearColor)(GLclampf, GLclampf, GLclampf, GLclampf);
void (GLAPIENTRY *Enable)(GLenum);
void (GLAPIENTRY *Disable)(GLenum);
const GLubyte *(GLAPIENTRY * GetString)(GLenum);
void (GLAPIENTRY *BlendFuncSeparate)(GLenum, GLenum, GLenum, GLenum);
void (GLAPIENTRY *Flush)(void);
void (GLAPIENTRY *Finish)(void);
void (GLAPIENTRY *PixelStorei)(GLenum, GLint);
void (GLAPIENTRY *TexImage1D)(GLenum, GLint, GLint, GLsizei, GLint,
GLenum, GLenum, const GLvoid *);
void (GLAPIENTRY *TexImage2D)(GLenum, GLint, GLint, GLsizei, GLsizei,
GLint, GLenum, GLenum, const GLvoid *);
void (GLAPIENTRY *TexSubImage2D)(GLenum, GLint, GLint, GLint,
GLsizei, GLsizei, GLenum, GLenum,
const GLvoid *);
void (GLAPIENTRY *TexParameteri)(GLenum, GLenum, GLint);
void (GLAPIENTRY *GetIntegerv)(GLenum, GLint *);
void (GLAPIENTRY *ReadPixels)(GLint, GLint, GLsizei, GLsizei, GLenum,
GLenum, GLvoid *);
void (GLAPIENTRY *ReadBuffer)(GLenum);
void (GLAPIENTRY *DrawArrays)(GLenum, GLint, GLsizei);
GLenum (GLAPIENTRY *GetError)(void);
void (GLAPIENTRY *GetTexLevelParameteriv)(GLenum, GLint, GLenum, GLint *);
void (GLAPIENTRY *Scissor)(GLint, GLint, GLsizei, GLsizei);
void (GLAPIENTRY *GenBuffers)(GLsizei, GLuint *);
void (GLAPIENTRY *DeleteBuffers)(GLsizei, const GLuint *);
void (GLAPIENTRY *BindBuffer)(GLenum, GLuint);
void (GLAPIENTRY *BindBufferBase)(GLenum, GLuint, GLuint);
GLvoid * (GLAPIENTRY *MapBufferRange)(GLenum, GLintptr, GLsizeiptr,
GLbitfield);
GLboolean (GLAPIENTRY *UnmapBuffer)(GLenum);
void (GLAPIENTRY *BufferData)(GLenum, intptr_t, const GLvoid *, GLenum);
void (GLAPIENTRY *ActiveTexture)(GLenum);
void (GLAPIENTRY *BindTexture)(GLenum, GLuint);
int (GLAPIENTRY *SwapInterval)(int);
void (GLAPIENTRY *TexImage3D)(GLenum, GLint, GLenum, GLsizei, GLsizei,
GLsizei, GLint, GLenum, GLenum,
const GLvoid *);
void (GLAPIENTRY *GenVertexArrays)(GLsizei, GLuint *);
void (GLAPIENTRY *BindVertexArray)(GLuint);
GLint (GLAPIENTRY *GetAttribLocation)(GLuint, const GLchar *);
void (GLAPIENTRY *EnableVertexAttribArray)(GLuint);
void (GLAPIENTRY *DisableVertexAttribArray)(GLuint);
void (GLAPIENTRY *VertexAttribPointer)(GLuint, GLint, GLenum, GLboolean,
GLsizei, const GLvoid *);
void (GLAPIENTRY *DeleteVertexArrays)(GLsizei, const GLuint *);
void (GLAPIENTRY *UseProgram)(GLuint);
GLint (GLAPIENTRY *GetUniformLocation)(GLuint, const GLchar *);
void (GLAPIENTRY *CompileShader)(GLuint);
GLuint (GLAPIENTRY *CreateProgram)(void);
GLuint (GLAPIENTRY *CreateShader)(GLenum);
void (GLAPIENTRY *ShaderSource)(GLuint, GLsizei, const GLchar **,
const GLint *);
void (GLAPIENTRY *LinkProgram)(GLuint);
void (GLAPIENTRY *AttachShader)(GLuint, GLuint);
void (GLAPIENTRY *DeleteShader)(GLuint);
void (GLAPIENTRY *DeleteProgram)(GLuint);
void (GLAPIENTRY *GetShaderInfoLog)(GLuint, GLsizei, GLsizei *, GLchar *);
void (GLAPIENTRY *GetShaderiv)(GLuint, GLenum, GLint *);
void (GLAPIENTRY *GetProgramInfoLog)(GLuint, GLsizei, GLsizei *, GLchar *);
void (GLAPIENTRY *GetProgramiv)(GLenum, GLenum, GLint *);
const GLubyte* (GLAPIENTRY *GetStringi)(GLenum, GLuint);
void (GLAPIENTRY *BindAttribLocation)(GLuint, GLuint, const GLchar *);
void (GLAPIENTRY *BindFramebuffer)(GLenum, GLuint);
void (GLAPIENTRY *GenFramebuffers)(GLsizei, GLuint *);
void (GLAPIENTRY *DeleteFramebuffers)(GLsizei, const GLuint *);
GLenum (GLAPIENTRY *CheckFramebufferStatus)(GLenum);
void (GLAPIENTRY *FramebufferTexture2D)(GLenum, GLenum, GLenum, GLuint,
GLint);
void (GLAPIENTRY *BlitFramebuffer)(GLint, GLint, GLint, GLint, GLint, GLint,
GLint, GLint, GLbitfield, GLenum);
void (GLAPIENTRY *GetFramebufferAttachmentParameteriv)(GLenum, GLenum,
GLenum, GLint *);
void (GLAPIENTRY *Uniform1f)(GLint, GLfloat);
void (GLAPIENTRY *Uniform2f)(GLint, GLfloat, GLfloat);
void (GLAPIENTRY *Uniform3f)(GLint, GLfloat, GLfloat, GLfloat);
void (GLAPIENTRY *Uniform4f)(GLint, GLfloat, GLfloat, GLfloat, GLfloat);
void (GLAPIENTRY *Uniform1i)(GLint, GLint);
void (GLAPIENTRY *UniformMatrix2fv)(GLint, GLsizei, GLboolean,
const GLfloat *);
void (GLAPIENTRY *UniformMatrix3fv)(GLint, GLsizei, GLboolean,
const GLfloat *);
void (GLAPIENTRY *InvalidateFramebuffer)(GLenum, GLsizei, const GLenum *);
GLsync (GLAPIENTRY *FenceSync)(GLenum, GLbitfield);
GLenum (GLAPIENTRY *ClientWaitSync)(GLsync, GLbitfield, GLuint64);
void (GLAPIENTRY *DeleteSync)(GLsync sync);
void (GLAPIENTRY *GenQueries)(GLsizei, GLuint *);
void (GLAPIENTRY *DeleteQueries)(GLsizei, const GLuint *);
void (GLAPIENTRY *BeginQuery)(GLenum, GLuint);
void (GLAPIENTRY *EndQuery)(GLenum);
void (GLAPIENTRY *QueryCounter)(GLuint, GLenum);
GLboolean (GLAPIENTRY *IsQuery)(GLuint);
void (GLAPIENTRY *GetQueryObjectiv)(GLuint, GLenum, GLint *);
void (GLAPIENTRY *GetQueryObjecti64v)(GLuint, GLenum, GLint64 *);
void (GLAPIENTRY *GetQueryObjectuiv)(GLuint, GLenum, GLuint *);
void (GLAPIENTRY *GetQueryObjectui64v)(GLuint, GLenum, GLuint64 *);
void (GLAPIENTRY *VDPAUInitNV)(const GLvoid *, const GLvoid *);
void (GLAPIENTRY *VDPAUFiniNV)(void);
GLvdpauSurfaceNV (GLAPIENTRY *VDPAURegisterOutputSurfaceNV)
(GLvoid *, GLenum, GLsizei, const GLuint *);
GLvdpauSurfaceNV (GLAPIENTRY *VDPAURegisterVideoSurfaceNV)
(GLvoid *, GLenum, GLsizei, const GLuint *);
void (GLAPIENTRY *VDPAUUnregisterSurfaceNV)(GLvdpauSurfaceNV);
void (GLAPIENTRY *VDPAUSurfaceAccessNV)(GLvdpauSurfaceNV, GLenum);
void (GLAPIENTRY *VDPAUMapSurfacesNV)(GLsizei, const GLvdpauSurfaceNV *);
void (GLAPIENTRY *VDPAUUnmapSurfacesNV)(GLsizei, const GLvdpauSurfaceNV *);
#if HAVE_GL_WIN32
// The HANDLE type might not be present on non-Win32
BOOL (GLAPIENTRY *DXSetResourceShareHandleNV)(void *dxObject,
HANDLE shareHandle);
HANDLE (GLAPIENTRY *DXOpenDeviceNV)(void *dxDevice);
BOOL (GLAPIENTRY *DXCloseDeviceNV)(HANDLE hDevice);
HANDLE (GLAPIENTRY *DXRegisterObjectNV)(HANDLE hDevice, void *dxObject,
GLuint name, GLenum type, GLenum access);
BOOL (GLAPIENTRY *DXUnregisterObjectNV)(HANDLE hDevice, HANDLE hObject);
BOOL (GLAPIENTRY *DXLockObjectsNV)(HANDLE hDevice, GLint count,
HANDLE *hObjects);
BOOL (GLAPIENTRY *DXUnlockObjectsNV)(HANDLE hDevice, GLint count,
HANDLE *hObjects);
#endif
GLint (GLAPIENTRY *GetVideoSync)(GLuint *);
GLint (GLAPIENTRY *WaitVideoSync)(GLint, GLint, unsigned int *);
void (GLAPIENTRY *GetTranslatedShaderSourceANGLE)(GLuint, GLsizei,
GLsizei*, GLchar* source);
void (GLAPIENTRY *DebugMessageCallback)(MP_GLDEBUGPROC callback,
const void *userParam);
void *(GLAPIENTRY *MPGetNativeDisplay)(const char *name);
};
#endif /* MPLAYER_GL_COMMON_H */
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