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/** @file
*
* VBox frontends: Qt GUI ("VirtualBox"):
* OpenGL support info used for 2D support detection
*/
/*
* Copyright (C) 2009-2022 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
*/
#ifndef VBOX_INCLUDED_VBoxGL2D_h
#define VBOX_INCLUDED_VBoxGL2D_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
#include <iprt/types.h>
typedef char GLchar;
#ifndef GL_COMPILE_STATUS
# define GL_COMPILE_STATUS 0x8b81
#endif
#ifndef GL_LINK_STATUS
# define GL_LINK_STATUS 0x8b82
#endif
#ifndef GL_FRAGMENT_SHADER
# define GL_FRAGMENT_SHADER 0x8b30
#endif
#ifndef GL_VERTEX_SHADER
# define GL_VERTEX_SHADER 0x8b31
#endif
/* GL_ARB_multitexture */
#ifndef GL_TEXTURE0
# define GL_TEXTURE0 0x84c0
#endif
#ifndef GL_TEXTURE1
# define GL_TEXTURE1 0x84c1
#endif
#ifndef GL_MAX_TEXTURE_COORDS
# define GL_MAX_TEXTURE_COORDS 0x8871
#endif
#ifndef GL_MAX_TEXTURE_IMAGE_UNITS
# define GL_MAX_TEXTURE_IMAGE_UNITS 0x8872
#endif
#ifndef APIENTRY
# define APIENTRY
#endif
typedef GLvoid (APIENTRY *PFNVBOXVHWA_ACTIVE_TEXTURE) (GLenum texture);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_MULTI_TEX_COORD2I) (GLenum texture, GLint v0, GLint v1);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_MULTI_TEX_COORD2F) (GLenum texture, GLfloat v0, GLfloat v1);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_MULTI_TEX_COORD2D) (GLenum texture, GLdouble v0, GLdouble v1);
/* GL_ARB_texture_rectangle */
#ifndef GL_TEXTURE_RECTANGLE
# define GL_TEXTURE_RECTANGLE 0x84F5
#endif
/* GL_ARB_shader_objects */
/* GL_ARB_fragment_shader */
typedef GLuint (APIENTRY *PFNVBOXVHWA_CREATE_SHADER) (GLenum type);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_SHADER_SOURCE) (GLuint shader, GLsizei count, const GLchar **string, const GLint *length);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_COMPILE_SHADER) (GLuint shader);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_DELETE_SHADER) (GLuint shader);
typedef GLuint (APIENTRY *PFNVBOXVHWA_CREATE_PROGRAM) ();
typedef GLvoid (APIENTRY *PFNVBOXVHWA_ATTACH_SHADER) (GLuint program, GLuint shader);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_DETACH_SHADER) (GLuint program, GLuint shader);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_LINK_PROGRAM) (GLuint program);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_USE_PROGRAM) (GLuint program);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_DELETE_PROGRAM) (GLuint program);
typedef GLboolean (APIENTRY *PFNVBOXVHWA_IS_SHADER) (GLuint shader);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_GET_SHADERIV) (GLuint shader, GLenum pname, GLint *params);
typedef GLboolean (APIENTRY *PFNVBOXVHWA_IS_PROGRAM) (GLuint program);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_GET_PROGRAMIV) (GLuint program, GLenum pname, GLint *params);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_GET_ATTACHED_SHADERS) (GLuint program, GLsizei maxCount, GLsizei *count, GLuint *shaders);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_GET_SHADER_INFO_LOG) (GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_GET_PROGRAM_INFO_LOG) (GLuint program, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
typedef GLint (APIENTRY *PFNVBOXVHWA_GET_UNIFORM_LOCATION) (GLint programObj, const GLchar *name);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_UNIFORM1F)(GLint location, GLfloat v0);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_UNIFORM2F)(GLint location, GLfloat v0, GLfloat v1);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_UNIFORM3F)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_UNIFORM4F)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_UNIFORM1I)(GLint location, GLint v0);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_UNIFORM2I)(GLint location, GLint v0, GLint v1);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_UNIFORM3I)(GLint location, GLint v0, GLint v1, GLint v2);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_UNIFORM4I)(GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
/* GL_ARB_pixel_buffer_object*/
#ifndef Q_WS_MAC
/* apears to be defined on mac */
typedef ptrdiff_t GLsizeiptr;
#endif
#ifndef GL_READ_ONLY
# define GL_READ_ONLY 0x88B8
#endif
#ifndef GL_WRITE_ONLY
# define GL_WRITE_ONLY 0x88B9
#endif
#ifndef GL_READ_WRITE
# define GL_READ_WRITE 0x88BA
#endif
#ifndef GL_STREAM_DRAW
# define GL_STREAM_DRAW 0x88E0
#endif
#ifndef GL_STREAM_READ
# define GL_STREAM_READ 0x88E1
#endif
#ifndef GL_STREAM_COPY
# define GL_STREAM_COPY 0x88E2
#endif
#ifndef GL_DYNAMIC_DRAW
# define GL_DYNAMIC_DRAW 0x88E8
#endif
#ifndef GL_PIXEL_PACK_BUFFER
# define GL_PIXEL_PACK_BUFFER 0x88EB
#endif
#ifndef GL_PIXEL_UNPACK_BUFFER
# define GL_PIXEL_UNPACK_BUFFER 0x88EC
#endif
#ifndef GL_PIXEL_PACK_BUFFER_BINDING
# define GL_PIXEL_PACK_BUFFER_BINDING 0x88ED
#endif
#ifndef GL_PIXEL_UNPACK_BUFFER_BINDING
# define GL_PIXEL_UNPACK_BUFFER_BINDING 0x88EF
#endif
typedef GLvoid (APIENTRY *PFNVBOXVHWA_GEN_BUFFERS)(GLsizei n, GLuint *buffers);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_DELETE_BUFFERS)(GLsizei n, const GLuint *buffers);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_BIND_BUFFER)(GLenum target, GLuint buffer);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_BUFFER_DATA)(GLenum target, GLsizeiptr size, const GLvoid *data, GLenum usage);
typedef GLvoid* (APIENTRY *PFNVBOXVHWA_MAP_BUFFER)(GLenum target, GLenum access);
typedef GLboolean (APIENTRY *PFNVBOXVHWA_UNMAP_BUFFER)(GLenum target);
/* GL_EXT_framebuffer_object */
#ifndef GL_FRAMEBUFFER
# define GL_FRAMEBUFFER 0x8D40
#endif
#ifndef GL_COLOR_ATTACHMENT0
# define GL_COLOR_ATTACHMENT0 0x8CE0
#endif
typedef GLboolean (APIENTRY *PFNVBOXVHWA_IS_FRAMEBUFFER)(GLuint framebuffer);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_BIND_FRAMEBUFFER)(GLenum target, GLuint framebuffer);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_DELETE_FRAMEBUFFERS)(GLsizei n, const GLuint *framebuffers);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_GEN_FRAMEBUFFERS)(GLsizei n, GLuint *framebuffers);
typedef GLenum (APIENTRY *PFNVBOXVHWA_CHECK_FRAMEBUFFER_STATUS)(GLenum target);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_FRAMEBUFFER_TEXTURE1D)(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_FRAMEBUFFER_TEXTURE2D)(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_FRAMEBUFFER_TEXTURE3D)(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLint zoffset);
typedef GLvoid (APIENTRY *PFNVBOXVHWA_GET_FRAMEBUFFER_ATTACHMENT_PARAMETRIV)(GLenum target, GLenum attachment, GLenum pname, GLint *params);
/*****************/
/* functions */
/* @todo: move those to VBoxGLInfo class instance members ??? */
extern PFNVBOXVHWA_ACTIVE_TEXTURE vboxglActiveTexture;
extern PFNVBOXVHWA_MULTI_TEX_COORD2I vboxglMultiTexCoord2i;
extern PFNVBOXVHWA_MULTI_TEX_COORD2D vboxglMultiTexCoord2d;
extern PFNVBOXVHWA_MULTI_TEX_COORD2F vboxglMultiTexCoord2f;
extern PFNVBOXVHWA_CREATE_SHADER vboxglCreateShader;
extern PFNVBOXVHWA_SHADER_SOURCE vboxglShaderSource;
extern PFNVBOXVHWA_COMPILE_SHADER vboxglCompileShader;
extern PFNVBOXVHWA_DELETE_SHADER vboxglDeleteShader;
extern PFNVBOXVHWA_CREATE_PROGRAM vboxglCreateProgram;
extern PFNVBOXVHWA_ATTACH_SHADER vboxglAttachShader;
extern PFNVBOXVHWA_DETACH_SHADER vboxglDetachShader;
extern PFNVBOXVHWA_LINK_PROGRAM vboxglLinkProgram;
extern PFNVBOXVHWA_USE_PROGRAM vboxglUseProgram;
extern PFNVBOXVHWA_DELETE_PROGRAM vboxglDeleteProgram;
extern PFNVBOXVHWA_IS_SHADER vboxglIsShader;
extern PFNVBOXVHWA_GET_SHADERIV vboxglGetShaderiv;
extern PFNVBOXVHWA_IS_PROGRAM vboxglIsProgram;
extern PFNVBOXVHWA_GET_PROGRAMIV vboxglGetProgramiv;
extern PFNVBOXVHWA_GET_ATTACHED_SHADERS vboxglGetAttachedShaders;
extern PFNVBOXVHWA_GET_SHADER_INFO_LOG vboxglGetShaderInfoLog;
extern PFNVBOXVHWA_GET_PROGRAM_INFO_LOG vboxglGetProgramInfoLog;
extern PFNVBOXVHWA_GET_UNIFORM_LOCATION vboxglGetUniformLocation;
extern PFNVBOXVHWA_UNIFORM1F vboxglUniform1f;
extern PFNVBOXVHWA_UNIFORM2F vboxglUniform2f;
extern PFNVBOXVHWA_UNIFORM3F vboxglUniform3f;
extern PFNVBOXVHWA_UNIFORM4F vboxglUniform4f;
extern PFNVBOXVHWA_UNIFORM1I vboxglUniform1i;
extern PFNVBOXVHWA_UNIFORM2I vboxglUniform2i;
extern PFNVBOXVHWA_UNIFORM3I vboxglUniform3i;
extern PFNVBOXVHWA_UNIFORM4I vboxglUniform4i;
extern PFNVBOXVHWA_GEN_BUFFERS vboxglGenBuffers;
extern PFNVBOXVHWA_DELETE_BUFFERS vboxglDeleteBuffers;
extern PFNVBOXVHWA_BIND_BUFFER vboxglBindBuffer;
extern PFNVBOXVHWA_BUFFER_DATA vboxglBufferData;
extern PFNVBOXVHWA_MAP_BUFFER vboxglMapBuffer;
extern PFNVBOXVHWA_UNMAP_BUFFER vboxglUnmapBuffer;
extern PFNVBOXVHWA_IS_FRAMEBUFFER vboxglIsFramebuffer;
extern PFNVBOXVHWA_BIND_FRAMEBUFFER vboxglBindFramebuffer;
extern PFNVBOXVHWA_DELETE_FRAMEBUFFERS vboxglDeleteFramebuffers;
extern PFNVBOXVHWA_GEN_FRAMEBUFFERS vboxglGenFramebuffers;
extern PFNVBOXVHWA_CHECK_FRAMEBUFFER_STATUS vboxglCheckFramebufferStatus;
extern PFNVBOXVHWA_FRAMEBUFFER_TEXTURE1D vboxglFramebufferTexture1D;
extern PFNVBOXVHWA_FRAMEBUFFER_TEXTURE2D vboxglFramebufferTexture2D;
extern PFNVBOXVHWA_FRAMEBUFFER_TEXTURE3D vboxglFramebufferTexture3D;
extern PFNVBOXVHWA_GET_FRAMEBUFFER_ATTACHMENT_PARAMETRIV vboxglGetFramebufferAttachmentParameteriv;
/*
* Glossing over qt 5 vs 6 differences.
*
* Note! We could use the qt6 classes in 5, but we probably don't have the
* necessary modules in our current qt builds.
*/
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
class QOpenGLWidget;
class QOpenGLContext;
# define MY_QOpenGLWidget QOpenGLWidget
# define MY_QOpenGLContext QOpenGLContext
#else
class QGLWidget;
class QGLContext;
# define MY_QOpenGLWidget QGLWidget
# define MY_QOpenGLContext QGLContext
#endif
class VBoxGLInfo
{
public:
VBoxGLInfo() :
mGLVersion(0),
mFragmentShaderSupported(false),
mTextureRectangleSupported(false),
mTextureNP2Supported(false),
mPBOSupported(false),
mFBOSupported(false),
mMultiTexNumSupported(1), /* 1 would mean it is not supported */
m_GL_ARB_multitexture(false),
m_GL_ARB_shader_objects(false),
m_GL_ARB_fragment_shader(false),
m_GL_ARB_pixel_buffer_object(false),
m_GL_ARB_texture_rectangle(false),
m_GL_EXT_texture_rectangle(false),
m_GL_NV_texture_rectangle(false),
m_GL_ARB_texture_non_power_of_two(false),
m_GL_EXT_framebuffer_object(false),
mInitialized(false)
{}
void init(const MY_QOpenGLContext *pContext);
bool isInitialized() const { return mInitialized; }
int getGLVersion() const { return mGLVersion; }
bool isFragmentShaderSupported() const { return mFragmentShaderSupported; }
bool isTextureRectangleSupported() const { return mTextureRectangleSupported; }
bool isTextureNP2Supported() const { return mTextureNP2Supported; }
bool isPBOSupported() const { return mPBOSupported; }
/* some ATI drivers do not seem to support non-zero offsets when dealing with PBOs
* @todo: add a check for that, always unsupported currently */
bool isPBOOffsetSupported() const { return false; }
bool isFBOSupported() const { return mFBOSupported; }
/* 1 would mean it is not supported */
int getMultiTexNumSupported() const { return mMultiTexNumSupported; }
static int parseVersion(const GLubyte * ver);
private:
void initExtSupport(const MY_QOpenGLContext &context);
int mGLVersion;
bool mFragmentShaderSupported;
bool mTextureRectangleSupported;
bool mTextureNP2Supported;
bool mPBOSupported;
bool mFBOSupported;
int mMultiTexNumSupported; /* 1 would mean it is not supported */
bool m_GL_ARB_multitexture;
bool m_GL_ARB_shader_objects;
bool m_GL_ARB_fragment_shader;
bool m_GL_ARB_pixel_buffer_object;
bool m_GL_ARB_texture_rectangle;
bool m_GL_EXT_texture_rectangle;
bool m_GL_NV_texture_rectangle;
bool m_GL_ARB_texture_non_power_of_two;
bool m_GL_EXT_framebuffer_object;
bool mInitialized;
};
class VBoxGLTmpContext
{
public:
VBoxGLTmpContext();
~VBoxGLTmpContext();
const MY_QOpenGLContext *makeCurrent();
private:
MY_QOpenGLWidget *mWidget;
};
#define VBOXQGL_MAKEFOURCC(ch0, ch1, ch2, ch3) \
((uint32_t)(uint8_t)(ch0) | ((uint32_t)(uint8_t)(ch1) << 8) | \
((uint32_t)(uint8_t)(ch2) << 16) | ((uint32_t)(uint8_t)(ch3) << 24 ))
#define FOURCC_AYUV VBOXQGL_MAKEFOURCC('A', 'Y', 'U', 'V')
#define FOURCC_UYVY VBOXQGL_MAKEFOURCC('U', 'Y', 'V', 'Y')
#define FOURCC_YUY2 VBOXQGL_MAKEFOURCC('Y', 'U', 'Y', '2')
#define FOURCC_YV12 VBOXQGL_MAKEFOURCC('Y', 'V', '1', '2')
#define VBOXVHWA_NUMFOURCC 4
class VBoxVHWAInfo
{
public:
VBoxVHWAInfo() :
mFourccSupportedCount(0),
mInitialized(false)
{}
VBoxVHWAInfo(const VBoxGLInfo & glInfo) :
mglInfo(glInfo),
mFourccSupportedCount(0),
mInitialized(false)
{}
void init(const MY_QOpenGLContext *pContext);
bool isInitialized() const { return mInitialized; }
const VBoxGLInfo & getGlInfo() const { return mglInfo; }
bool isVHWASupported() const;
int getFourccSupportedCount() const { return mFourccSupportedCount; }
const uint32_t * getFourccSupportedList() const { return mFourccSupportedList; }
static bool checkVHWASupport();
private:
VBoxGLInfo mglInfo;
uint32_t mFourccSupportedList[VBOXVHWA_NUMFOURCC];
int mFourccSupportedCount;
bool mInitialized;
};
#endif /* !VBOX_INCLUDED_VBoxGL2D_h */
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