[vlc-devel] [PATCH] opengl: extract OpenGL common to a separate header
Romain Vimont
rom1v at videolabs.io
Fri Dec 6 13:12:13 CET 2019
All OpenGL compatibility code was in converter.h. Move it to a separate
header so that we can use it without depending on converters.
---
modules/video_output/Makefile.am | 1 +
modules/video_output/opengl/converter.h | 214 +--------------------
modules/video_output/opengl/gl_common.h | 237 ++++++++++++++++++++++++
3 files changed, 239 insertions(+), 213 deletions(-)
create mode 100644 modules/video_output/opengl/gl_common.h
diff --git a/modules/video_output/Makefile.am b/modules/video_output/Makefile.am
index e14272fc15..3c1bee98cb 100644
--- a/modules/video_output/Makefile.am
+++ b/modules/video_output/Makefile.am
@@ -4,6 +4,7 @@ vout_LTLIBRARIES =
EXTRA_DIST += video_output/README
OPENGL_COMMONSOURCES = video_output/opengl/vout_helper.c \
+ video_output/opengl/gl_common.h \
video_output/opengl/vout_helper.h video_output/opengl/converter.h \
video_output/opengl/internal.h video_output/opengl/fragment_shaders.c \
video_output/opengl/converter_sw.c
diff --git a/modules/video_output/opengl/converter.h b/modules/video_output/opengl/converter.h
index 30d7332a85..a3aba06621 100644
--- a/modules/video_output/opengl/converter.h
+++ b/modules/video_output/opengl/converter.h
@@ -26,219 +26,7 @@
#include <vlc_opengl.h>
#include <vlc_picture_pool.h>
#include <vlc_plugin.h>
-
-/* if USE_OPENGL_ES2 is defined, OpenGL ES version 2 will be used, otherwise
- * normal OpenGL will be used */
-#ifdef __APPLE__
-# include <TargetConditionals.h>
-# if !TARGET_OS_IPHONE
-# undef USE_OPENGL_ES2
-# define MACOS_OPENGL
-# include <OpenGL/gl.h>
-# else /* Force ESv2 on iOS */
-# define USE_OPENGL_ES2
-# include <OpenGLES/ES1/gl.h>
-# include <OpenGLES/ES2/gl.h>
-# include <OpenGLES/ES2/glext.h>
-# endif
-#else /* !defined (__APPLE__) */
-# if defined (USE_OPENGL_ES2)
-# include <GLES2/gl2.h>
-# include <GLES2/gl2ext.h>
-# else
-# ifdef HAVE_GL_WGLEW_H
-# include <GL/glew.h>
-# endif
-# include <GL/gl.h>
-# endif
-#endif
-
-#define VLCGL_PICTURE_MAX 128
-
-#ifndef GL_TEXTURE_RECTANGLE
-# define GL_TEXTURE_RECTANGLE 0x84F5
-#endif
-
-#ifndef APIENTRY
-# define APIENTRY
-#endif
-
-/* Core OpenGL/OpenGLES functions: the following functions pointers typedefs
- * are not defined. */
-#if !defined(_WIN32) /* Already defined on Win32 */
-typedef void (*PFNGLACTIVETEXTUREPROC) (GLenum texture);
-#endif
-typedef void (APIENTRY *PFNGLBINDTEXTUREPROC) (GLenum target, GLuint texture);
-typedef void (APIENTRY *PFNGLBLENDFUNCPROC) (GLenum sfactor, GLenum dfactor);
-typedef void (APIENTRY *PFNGLBUFFERSTORAGEPROC) (GLenum target, GLsizeiptr size, const void *data, GLbitfield flags);
-typedef void (APIENTRY *PFNGLCLEARCOLORPROC) (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
-typedef void (APIENTRY *PFNGLCLEARPROC) (GLbitfield mask);
-typedef void (APIENTRY *PFNGLDELETETEXTURESPROC) (GLsizei n, const GLuint *textures);
-typedef void (APIENTRY *PFNGLDEPTHMASKPROC) (GLboolean flag);
-typedef void (APIENTRY *PFNGLDISABLEPROC) (GLenum cap);
-typedef void (APIENTRY *PFNGLDRAWARRAYSPROC) (GLenum mode, GLint first, GLsizei count);
-typedef void (APIENTRY *PFNGLDRAWELEMENTSPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices);
-typedef void (APIENTRY *PFNGLENABLEPROC) (GLenum cap);
-typedef void (APIENTRY *PFNGLFINISHPROC)(void);
-typedef void (APIENTRY *PFNGLFLUSHPROC)(void);
-typedef void (APIENTRY *PFNGLGENTEXTURESPROC) (GLsizei n, GLuint *textures);
-typedef GLenum (APIENTRY *PFNGLGETERRORPROC) (void);
-typedef void (APIENTRY *PFNGLGETINTEGERVPROC) (GLenum pname, GLint *data);
-typedef const GLubyte *(APIENTRY *PFNGLGETSTRINGPROC) (GLenum name);
-typedef void (APIENTRY *PFNGLGETTEXLEVELPARAMETERIVPROC) (GLenum target, GLint level, GLenum pname, GLint *params);
-typedef void (APIENTRY *PFNGLPIXELSTOREIPROC) (GLenum pname, GLint param);
-typedef void (APIENTRY *PFNGLTEXENVFPROC)(GLenum target, GLenum pname, GLfloat param);
-typedef void (APIENTRY *PFNGLTEXIMAGE2DPROC) (GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void *pixels);
-typedef void (APIENTRY *PFNGLTEXPARAMETERFPROC) (GLenum target, GLenum pname, GLfloat param);
-typedef void (APIENTRY *PFNGLTEXPARAMETERIPROC) (GLenum target, GLenum pname, GLint param);
-typedef void (APIENTRY *PFNGLTEXSUBIMAGE2DPROC) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void *pixels);
-typedef void (APIENTRY *PFNGLVIEWPORTPROC) (GLint x, GLint y, GLsizei width, GLsizei height);
-
-/* The following are defined in glext.h but not for GLES2 or on Apple systems */
-#if defined(USE_OPENGL_ES2) || defined(__APPLE__)
-# define PFNGLGETPROGRAMIVPROC typeof(glGetProgramiv)*
-# define PFNGLGETPROGRAMINFOLOGPROC typeof(glGetProgramInfoLog)*
-# define PFNGLGETSHADERIVPROC typeof(glGetShaderiv)*
-# define PFNGLGETSHADERINFOLOGPROC typeof(glGetShaderInfoLog)*
-# define PFNGLGETUNIFORMLOCATIONPROC typeof(glGetUniformLocation)*
-# define PFNGLGETATTRIBLOCATIONPROC typeof(glGetAttribLocation)*
-# define PFNGLVERTEXATTRIBPOINTERPROC typeof(glVertexAttribPointer)*
-# define PFNGLENABLEVERTEXATTRIBARRAYPROC typeof(glEnableVertexAttribArray)*
-# define PFNGLUNIFORMMATRIX4FVPROC typeof(glUniformMatrix4fv)*
-# define PFNGLUNIFORMMATRIX3FVPROC typeof(glUniformMatrix3fv)*
-# define PFNGLUNIFORMMATRIX2FVPROC typeof(glUniformMatrix2fv)*
-# define PFNGLUNIFORM4FVPROC typeof(glUniform4fv)*
-# define PFNGLUNIFORM4FPROC typeof(glUniform4f)*
-# define PFNGLUNIFORM3FPROC typeof(glUniform3f)*
-# define PFNGLUNIFORM2FPROC typeof(glUniform2f)*
-# define PFNGLUNIFORM1FPROC typeof(glUniform1f)*
-# define PFNGLUNIFORM1IPROC typeof(glUniform1i)*
-# define PFNGLCREATESHADERPROC typeof(glCreateShader)*
-# define PFNGLSHADERSOURCEPROC typeof(glShaderSource)*
-# define PFNGLCOMPILESHADERPROC typeof(glCompileShader)*
-# define PFNGLDELETESHADERPROC typeof(glDeleteShader)*
-# define PFNGLCREATEPROGRAMPROC typeof(glCreateProgram)*
-# define PFNGLLINKPROGRAMPROC typeof(glLinkProgram)*
-# define PFNGLUSEPROGRAMPROC typeof(glUseProgram)*
-# define PFNGLDELETEPROGRAMPROC typeof(glDeleteProgram)*
-# define PFNGLATTACHSHADERPROC typeof(glAttachShader)*
-# define PFNGLGENBUFFERSPROC typeof(glGenBuffers)*
-# define PFNGLBINDBUFFERPROC typeof(glBindBuffer)*
-# define PFNGLBUFFERDATAPROC typeof(glBufferData)*
-# define PFNGLBUFFERSUBDATAPROC typeof(glBufferSubData)*
-# define PFNGLDELETEBUFFERSPROC typeof(glDeleteBuffers)*
-# define PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC typeof(glGetFramebufferAttachmentParameteriv)*
-#if defined(__APPLE__)
-# import <CoreFoundation/CoreFoundation.h>
-#endif
-#endif
-
-/* The following are defined in glext.h but doesn't exist in GLES2 */
-#if defined(USE_OPENGL_ES2) || defined(__APPLE__)
-typedef struct __GLsync *GLsync;
-typedef uint64_t GLuint64;
-typedef void *(APIENTRY *PFNGLMAPBUFFERRANGEPROC) (GLenum target, GLintptr offset, GLsizeiptr length, GLbitfield access);
-typedef void (APIENTRY *PFNGLFLUSHMAPPEDBUFFERRANGEPROC) (GLenum target, GLintptr offset, GLsizeiptr length);
-typedef GLboolean (APIENTRY *PFNGLUNMAPBUFFERPROC) (GLenum target);
-typedef GLsync (APIENTRY *PFNGLFENCESYNCPROC) (GLenum condition, GLbitfield flags);
-typedef void (APIENTRY *PFNGLDELETESYNCPROC) (GLsync sync);
-typedef GLenum (APIENTRY *PFNGLCLIENTWAITSYNCPROC) (GLsync sync, GLbitfield flags, GLuint64 timeout);
-#endif
-
-/**
- * Structure containing function pointers to shaders commands
- */
-typedef struct {
- /*
- * GL / GLES core functions
- */
- PFNGLBINDTEXTUREPROC BindTexture;
- PFNGLBLENDFUNCPROC BlendFunc;
- PFNGLCLEARCOLORPROC ClearColor;
- PFNGLCLEARPROC Clear;
- PFNGLDELETETEXTURESPROC DeleteTextures;
- PFNGLDEPTHMASKPROC DepthMask;
- PFNGLDISABLEPROC Disable;
- PFNGLDRAWARRAYSPROC DrawArrays;
- PFNGLDRAWELEMENTSPROC DrawElements;
- PFNGLENABLEPROC Enable;
- PFNGLFINISHPROC Finish;
- PFNGLFLUSHPROC Flush;
- PFNGLGENTEXTURESPROC GenTextures;
- PFNGLGETERRORPROC GetError;
- PFNGLGETINTEGERVPROC GetIntegerv;
- PFNGLGETSTRINGPROC GetString;
- PFNGLPIXELSTOREIPROC PixelStorei;
- PFNGLTEXIMAGE2DPROC TexImage2D;
- PFNGLTEXPARAMETERFPROC TexParameterf;
- PFNGLTEXPARAMETERIPROC TexParameteri;
- PFNGLTEXSUBIMAGE2DPROC TexSubImage2D;
- PFNGLVIEWPORTPROC Viewport;
-
- /* GL only core functions: NULL for GLES2 */
- PFNGLGETTEXLEVELPARAMETERIVPROC GetTexLevelParameteriv; /* Can be NULL */
- PFNGLTEXENVFPROC TexEnvf; /* Can be NULL */
-
- /*
- * GL / GLES extensions
- */
-
- /* Shader commands */
- PFNGLCREATESHADERPROC CreateShader;
- PFNGLSHADERSOURCEPROC ShaderSource;
- PFNGLCOMPILESHADERPROC CompileShader;
- PFNGLATTACHSHADERPROC AttachShader;
- PFNGLDELETESHADERPROC DeleteShader;
-
- /* Shader log commands */
- PFNGLGETPROGRAMIVPROC GetProgramiv;
- PFNGLGETSHADERIVPROC GetShaderiv;
- PFNGLGETPROGRAMINFOLOGPROC GetProgramInfoLog;
- PFNGLGETSHADERINFOLOGPROC GetShaderInfoLog;
-
- /* Shader variables commands */
- PFNGLGETUNIFORMLOCATIONPROC GetUniformLocation;
- PFNGLGETATTRIBLOCATIONPROC GetAttribLocation;
- PFNGLVERTEXATTRIBPOINTERPROC VertexAttribPointer;
- PFNGLENABLEVERTEXATTRIBARRAYPROC EnableVertexAttribArray;
- PFNGLUNIFORMMATRIX4FVPROC UniformMatrix4fv;
- PFNGLUNIFORMMATRIX3FVPROC UniformMatrix3fv;
- PFNGLUNIFORMMATRIX2FVPROC UniformMatrix2fv;
- PFNGLUNIFORM4FVPROC Uniform4fv;
- PFNGLUNIFORM4FPROC Uniform4f;
- PFNGLUNIFORM3FPROC Uniform3f;
- PFNGLUNIFORM2FPROC Uniform2f;
- PFNGLUNIFORM1FPROC Uniform1f;
- PFNGLUNIFORM1IPROC Uniform1i;
-
- /* Program commands */
- PFNGLCREATEPROGRAMPROC CreateProgram;
- PFNGLLINKPROGRAMPROC LinkProgram;
- PFNGLUSEPROGRAMPROC UseProgram;
- PFNGLDELETEPROGRAMPROC DeleteProgram;
-
- /* Texture commands */
- PFNGLACTIVETEXTUREPROC ActiveTexture;
-
- /* Buffers commands */
- PFNGLGENBUFFERSPROC GenBuffers;
- PFNGLBINDBUFFERPROC BindBuffer;
- PFNGLBUFFERDATAPROC BufferData;
- PFNGLDELETEBUFFERSPROC DeleteBuffers;
-
- /* Framebuffers commands */
- PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC GetFramebufferAttachmentParameteriv;
-
- /* Commands used for PBO and/or Persistent mapping */
- PFNGLBUFFERSUBDATAPROC BufferSubData; /* can be NULL */
- PFNGLBUFFERSTORAGEPROC BufferStorage; /* can be NULL */
- PFNGLMAPBUFFERRANGEPROC MapBufferRange; /* can be NULL */
- PFNGLFLUSHMAPPEDBUFFERRANGEPROC FlushMappedBufferRange; /* can be NULL */
- PFNGLUNMAPBUFFERPROC UnmapBuffer; /* can be NULL */
- PFNGLFENCESYNCPROC FenceSync; /* can be NULL */
- PFNGLDELETESYNCPROC DeleteSync; /* can be NULL */
- PFNGLCLIENTWAITSYNCPROC ClientWaitSync; /* can be NULL */
-} opengl_vtable_t;
+#include "gl_common.h"
struct pl_context;
struct pl_shader;
diff --git a/modules/video_output/opengl/gl_common.h b/modules/video_output/opengl/gl_common.h
new file mode 100644
index 0000000000..11c109a7a7
--- /dev/null
+++ b/modules/video_output/opengl/gl_common.h
@@ -0,0 +1,237 @@
+/*****************************************************************************
++ * gl_common.h
++ *****************************************************************************
++ * Copyright (C) 2019 VLC authors and VideoLAN
++ *
++ * This program 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.
++ *
++ * This program 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 this program; if not, write to the Free Software Foundation,
++ * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
++ *****************************************************************************/
+
+#ifndef VLC_GL_COMMON_H
+#define VLC_GL_COMMON_H
+
+/* if USE_OPENGL_ES2 is defined, OpenGL ES version 2 will be used, otherwise
+ * normal OpenGL will be used */
+#ifdef __APPLE__
+# include <TargetConditionals.h>
+# if !TARGET_OS_IPHONE
+# undef USE_OPENGL_ES2
+# define MACOS_OPENGL
+# include <OpenGL/gl.h>
+# else /* Force ESv2 on iOS */
+# define USE_OPENGL_ES2
+# include <OpenGLES/ES1/gl.h>
+# include <OpenGLES/ES2/gl.h>
+# include <OpenGLES/ES2/glext.h>
+# endif
+#else /* !defined (__APPLE__) */
+# if defined (USE_OPENGL_ES2)
+# include <GLES2/gl2.h>
+# include <GLES2/gl2ext.h>
+# else
+# ifdef HAVE_GL_WGLEW_H
+# include <GL/glew.h>
+# endif
+# include <GL/gl.h>
+# endif
+#endif
+
+#define VLCGL_PICTURE_MAX 128
+
+#ifndef GL_TEXTURE_RECTANGLE
+# define GL_TEXTURE_RECTANGLE 0x84F5
+#endif
+
+#ifndef APIENTRY
+# define APIENTRY
+#endif
+
+/* Core OpenGL/OpenGLES functions: the following functions pointers typedefs
+ * are not defined. */
+#if !defined(_WIN32) /* Already defined on Win32 */
+typedef void (*PFNGLACTIVETEXTUREPROC) (GLenum texture);
+#endif
+typedef void (APIENTRY *PFNGLBINDTEXTUREPROC) (GLenum target, GLuint texture);
+typedef void (APIENTRY *PFNGLBLENDFUNCPROC) (GLenum sfactor, GLenum dfactor);
+typedef void (APIENTRY *PFNGLBUFFERSTORAGEPROC) (GLenum target, GLsizeiptr size, const void *data, GLbitfield flags);
+typedef void (APIENTRY *PFNGLCLEARCOLORPROC) (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
+typedef void (APIENTRY *PFNGLCLEARPROC) (GLbitfield mask);
+typedef void (APIENTRY *PFNGLDELETETEXTURESPROC) (GLsizei n, const GLuint *textures);
+typedef void (APIENTRY *PFNGLDEPTHMASKPROC) (GLboolean flag);
+typedef void (APIENTRY *PFNGLDISABLEPROC) (GLenum cap);
+typedef void (APIENTRY *PFNGLDRAWARRAYSPROC) (GLenum mode, GLint first, GLsizei count);
+typedef void (APIENTRY *PFNGLDRAWELEMENTSPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices);
+typedef void (APIENTRY *PFNGLENABLEPROC) (GLenum cap);
+typedef void (APIENTRY *PFNGLFINISHPROC)(void);
+typedef void (APIENTRY *PFNGLFLUSHPROC)(void);
+typedef void (APIENTRY *PFNGLGENTEXTURESPROC) (GLsizei n, GLuint *textures);
+typedef GLenum (APIENTRY *PFNGLGETERRORPROC) (void);
+typedef void (APIENTRY *PFNGLGETINTEGERVPROC) (GLenum pname, GLint *data);
+typedef const GLubyte *(APIENTRY *PFNGLGETSTRINGPROC) (GLenum name);
+typedef void (APIENTRY *PFNGLGETTEXLEVELPARAMETERIVPROC) (GLenum target, GLint level, GLenum pname, GLint *params);
+typedef void (APIENTRY *PFNGLPIXELSTOREIPROC) (GLenum pname, GLint param);
+typedef void (APIENTRY *PFNGLTEXENVFPROC)(GLenum target, GLenum pname, GLfloat param);
+typedef void (APIENTRY *PFNGLTEXIMAGE2DPROC) (GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void *pixels);
+typedef void (APIENTRY *PFNGLTEXPARAMETERFPROC) (GLenum target, GLenum pname, GLfloat param);
+typedef void (APIENTRY *PFNGLTEXPARAMETERIPROC) (GLenum target, GLenum pname, GLint param);
+typedef void (APIENTRY *PFNGLTEXSUBIMAGE2DPROC) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void *pixels);
+typedef void (APIENTRY *PFNGLVIEWPORTPROC) (GLint x, GLint y, GLsizei width, GLsizei height);
+
+/* The following are defined in glext.h but not for GLES2 or on Apple systems */
+#if defined(USE_OPENGL_ES2) || defined(__APPLE__)
+# define PFNGLGETPROGRAMIVPROC typeof(glGetProgramiv)*
+# define PFNGLGETPROGRAMINFOLOGPROC typeof(glGetProgramInfoLog)*
+# define PFNGLGETSHADERIVPROC typeof(glGetShaderiv)*
+# define PFNGLGETSHADERINFOLOGPROC typeof(glGetShaderInfoLog)*
+# define PFNGLGETUNIFORMLOCATIONPROC typeof(glGetUniformLocation)*
+# define PFNGLGETATTRIBLOCATIONPROC typeof(glGetAttribLocation)*
+# define PFNGLVERTEXATTRIBPOINTERPROC typeof(glVertexAttribPointer)*
+# define PFNGLENABLEVERTEXATTRIBARRAYPROC typeof(glEnableVertexAttribArray)*
+# define PFNGLUNIFORMMATRIX4FVPROC typeof(glUniformMatrix4fv)*
+# define PFNGLUNIFORMMATRIX3FVPROC typeof(glUniformMatrix3fv)*
+# define PFNGLUNIFORMMATRIX2FVPROC typeof(glUniformMatrix2fv)*
+# define PFNGLUNIFORM4FVPROC typeof(glUniform4fv)*
+# define PFNGLUNIFORM4FPROC typeof(glUniform4f)*
+# define PFNGLUNIFORM3FPROC typeof(glUniform3f)*
+# define PFNGLUNIFORM2FPROC typeof(glUniform2f)*
+# define PFNGLUNIFORM1FPROC typeof(glUniform1f)*
+# define PFNGLUNIFORM1IPROC typeof(glUniform1i)*
+# define PFNGLCREATESHADERPROC typeof(glCreateShader)*
+# define PFNGLSHADERSOURCEPROC typeof(glShaderSource)*
+# define PFNGLCOMPILESHADERPROC typeof(glCompileShader)*
+# define PFNGLDELETESHADERPROC typeof(glDeleteShader)*
+# define PFNGLCREATEPROGRAMPROC typeof(glCreateProgram)*
+# define PFNGLLINKPROGRAMPROC typeof(glLinkProgram)*
+# define PFNGLUSEPROGRAMPROC typeof(glUseProgram)*
+# define PFNGLDELETEPROGRAMPROC typeof(glDeleteProgram)*
+# define PFNGLATTACHSHADERPROC typeof(glAttachShader)*
+# define PFNGLGENBUFFERSPROC typeof(glGenBuffers)*
+# define PFNGLBINDBUFFERPROC typeof(glBindBuffer)*
+# define PFNGLBUFFERDATAPROC typeof(glBufferData)*
+# define PFNGLBUFFERSUBDATAPROC typeof(glBufferSubData)*
+# define PFNGLDELETEBUFFERSPROC typeof(glDeleteBuffers)*
+# define PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC typeof(glGetFramebufferAttachmentParameteriv)*
+#if defined(__APPLE__)
+# import <CoreFoundation/CoreFoundation.h>
+#endif
+#endif
+
+/* The following are defined in glext.h but doesn't exist in GLES2 */
+#if defined(USE_OPENGL_ES2) || defined(__APPLE__)
+typedef struct __GLsync *GLsync;
+typedef uint64_t GLuint64;
+typedef void *(APIENTRY *PFNGLMAPBUFFERRANGEPROC) (GLenum target, GLintptr offset, GLsizeiptr length, GLbitfield access);
+typedef void (APIENTRY *PFNGLFLUSHMAPPEDBUFFERRANGEPROC) (GLenum target, GLintptr offset, GLsizeiptr length);
+typedef GLboolean (APIENTRY *PFNGLUNMAPBUFFERPROC) (GLenum target);
+typedef GLsync (APIENTRY *PFNGLFENCESYNCPROC) (GLenum condition, GLbitfield flags);
+typedef void (APIENTRY *PFNGLDELETESYNCPROC) (GLsync sync);
+typedef GLenum (APIENTRY *PFNGLCLIENTWAITSYNCPROC) (GLsync sync, GLbitfield flags, GLuint64 timeout);
+#endif
+
+/**
+ * Structure containing function pointers to shaders commands
+ */
+typedef struct {
+ /*
+ * GL / GLES core functions
+ */
+ PFNGLBINDTEXTUREPROC BindTexture;
+ PFNGLBLENDFUNCPROC BlendFunc;
+ PFNGLCLEARCOLORPROC ClearColor;
+ PFNGLCLEARPROC Clear;
+ PFNGLDELETETEXTURESPROC DeleteTextures;
+ PFNGLDEPTHMASKPROC DepthMask;
+ PFNGLDISABLEPROC Disable;
+ PFNGLDRAWARRAYSPROC DrawArrays;
+ PFNGLDRAWELEMENTSPROC DrawElements;
+ PFNGLENABLEPROC Enable;
+ PFNGLFINISHPROC Finish;
+ PFNGLFLUSHPROC Flush;
+ PFNGLGENTEXTURESPROC GenTextures;
+ PFNGLGETERRORPROC GetError;
+ PFNGLGETINTEGERVPROC GetIntegerv;
+ PFNGLGETSTRINGPROC GetString;
+ PFNGLPIXELSTOREIPROC PixelStorei;
+ PFNGLTEXIMAGE2DPROC TexImage2D;
+ PFNGLTEXPARAMETERFPROC TexParameterf;
+ PFNGLTEXPARAMETERIPROC TexParameteri;
+ PFNGLTEXSUBIMAGE2DPROC TexSubImage2D;
+ PFNGLVIEWPORTPROC Viewport;
+
+ /* GL only core functions: NULL for GLES2 */
+ PFNGLGETTEXLEVELPARAMETERIVPROC GetTexLevelParameteriv; /* Can be NULL */
+ PFNGLTEXENVFPROC TexEnvf; /* Can be NULL */
+
+ /*
+ * GL / GLES extensions
+ */
+
+ /* Shader commands */
+ PFNGLCREATESHADERPROC CreateShader;
+ PFNGLSHADERSOURCEPROC ShaderSource;
+ PFNGLCOMPILESHADERPROC CompileShader;
+ PFNGLATTACHSHADERPROC AttachShader;
+ PFNGLDELETESHADERPROC DeleteShader;
+
+ /* Shader log commands */
+ PFNGLGETPROGRAMIVPROC GetProgramiv;
+ PFNGLGETSHADERIVPROC GetShaderiv;
+ PFNGLGETPROGRAMINFOLOGPROC GetProgramInfoLog;
+ PFNGLGETSHADERINFOLOGPROC GetShaderInfoLog;
+
+ /* Shader variables commands */
+ PFNGLGETUNIFORMLOCATIONPROC GetUniformLocation;
+ PFNGLGETATTRIBLOCATIONPROC GetAttribLocation;
+ PFNGLVERTEXATTRIBPOINTERPROC VertexAttribPointer;
+ PFNGLENABLEVERTEXATTRIBARRAYPROC EnableVertexAttribArray;
+ PFNGLUNIFORMMATRIX4FVPROC UniformMatrix4fv;
+ PFNGLUNIFORMMATRIX3FVPROC UniformMatrix3fv;
+ PFNGLUNIFORMMATRIX2FVPROC UniformMatrix2fv;
+ PFNGLUNIFORM4FVPROC Uniform4fv;
+ PFNGLUNIFORM4FPROC Uniform4f;
+ PFNGLUNIFORM3FPROC Uniform3f;
+ PFNGLUNIFORM2FPROC Uniform2f;
+ PFNGLUNIFORM1FPROC Uniform1f;
+ PFNGLUNIFORM1IPROC Uniform1i;
+
+ /* Program commands */
+ PFNGLCREATEPROGRAMPROC CreateProgram;
+ PFNGLLINKPROGRAMPROC LinkProgram;
+ PFNGLUSEPROGRAMPROC UseProgram;
+ PFNGLDELETEPROGRAMPROC DeleteProgram;
+
+ /* Texture commands */
+ PFNGLACTIVETEXTUREPROC ActiveTexture;
+
+ /* Buffers commands */
+ PFNGLGENBUFFERSPROC GenBuffers;
+ PFNGLBINDBUFFERPROC BindBuffer;
+ PFNGLBUFFERDATAPROC BufferData;
+ PFNGLDELETEBUFFERSPROC DeleteBuffers;
+
+ /* Framebuffers commands */
+ PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC GetFramebufferAttachmentParameteriv;
+
+ /* Commands used for PBO and/or Persistent mapping */
+ PFNGLBUFFERSUBDATAPROC BufferSubData; /* can be NULL */
+ PFNGLBUFFERSTORAGEPROC BufferStorage; /* can be NULL */
+ PFNGLMAPBUFFERRANGEPROC MapBufferRange; /* can be NULL */
+ PFNGLFLUSHMAPPEDBUFFERRANGEPROC FlushMappedBufferRange; /* can be NULL */
+ PFNGLUNMAPBUFFERPROC UnmapBuffer; /* can be NULL */
+ PFNGLFENCESYNCPROC FenceSync; /* can be NULL */
+ PFNGLDELETESYNCPROC DeleteSync; /* can be NULL */
+ PFNGLCLIENTWAITSYNCPROC ClientWaitSync; /* can be NULL */
+} opengl_vtable_t;
+
+#endif
--
2.24.0
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