276 lines
7.3 KiB
C++
276 lines
7.3 KiB
C++
/********************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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Copyright (C) 2010 Fredrik Höglund <fredrik@kde.org>
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This program 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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This program 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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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#ifndef KWIN_GLPLATFORM_H
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#define KWIN_GLPLATFORM_H
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#include <kwinconfig.h> // KWIN_HAVE_OPENGL
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#ifdef KWIN_HAVE_OPENGL
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#include <kwinglutils_funcs.h>
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#include <QSet>
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namespace KWin
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{
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inline qint64 kVersionNumber(qint64 major, qint64 minor, qint64 patch = 0)
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{
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return ((major & 0xffff) << 32) | ((minor & 0xffff) << 16) | (patch & 0xffff);
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}
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enum GLFeature {
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/**
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* Set when a texture bound to a pixmap uses the same storage as the pixmap,
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* and thus doesn't need to be rebound when the contents of the pixmap
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* has changed.
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*/
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LooseBinding,
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/**
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* Set if the driver supports the following extensions:
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* - GL_ARB_shader_objects
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* - GL_ARB_fragment_shader
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* - GL_ARB_vertex_shader
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* - GL_ARB_shading_language_100
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*/
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GLSL,
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/**
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* If set, assume the following:
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* - No flow control or branches
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* - No loops, unless the loops have a fixed iteration count and can be unrolled
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* - No functions, unless they can be inlined
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* - No indirect indexing of arrays
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* - No support for gl_ClipVertex or gl_FrontFacing
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* - No texture fetches in vertex shaders
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* - Max 32 texture fetches in fragment shaders
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* - Max 4 texture indirections
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*/
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LimitedGLSL,
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/**
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* Set when the driver supports GL_ARB_texture_non_power_of_two.
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*/
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TextureNPOT,
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/**
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* If set, the driver supports GL_ARB_texture_non_power_of_two with the
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* GL_ARB_texture_rectangle limitations.
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*
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* This means no support for mipmap filters, and that only the following
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* wrap modes are supported:
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* - GL_CLAMP
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* - GL_CLAMP_TO_EDGE
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* - GL_CLAMP_TO_BORDER
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*/
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LimitedNPOT
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};
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enum Driver {
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Driver_R100, // Technically "Radeon"
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Driver_R200,
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Driver_R300C,
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Driver_R300G,
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Driver_R600C,
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Driver_R600G,
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Driver_Nouveau,
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Driver_Intel,
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Driver_NVidia,
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Driver_Catalyst,
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Driver_Swrast,
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Driver_Softpipe,
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Driver_Llvmpipe,
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Driver_Unknown,
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};
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enum ChipClass {
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// Radeon
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R100 = 0, // GL1.3 DX7 2000
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R200, // GL1.4 DX8.1 SM 1.4 2001
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R300, // GL2.0 DX9 SM 2.0 2002
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R400, // GL2.0 DX9b SM 2.0b 2004
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R500, // GL2.0 DX9c SM 3.0 2005
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R600, // GL3.3 DX10 SM 4.0 2006
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R700, // GL3.3 DX10.1 SM 4.1 2008
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Evergreen, // GL4.0 CL1.0 DX11 SM 5.0 2009
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NorthernIslands, // GL4.0 CL1.1 DX11 SM 5.0 2010
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UnknownRadeon = 999,
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// NVIDIA
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NV10 = 1000, // GL1.2 DX7 1999
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NV20, // GL1.3 DX8 SM 1.1 2001
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NV30, // GL1.5 DX9a SM 2.0 2003
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NV40, // GL2.1 DX9c SM 3.0 2004
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G80, // GL3.3 DX10 SM 4.0 2006
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GF100, // GL4.1 CL1.1 DX11 SM 5.0 2010
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UnknownNVidia = 1999,
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// Intel
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I8XX = 2000, // GL1.3 DX7 2001
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I915, // GL1.4/1.5 DX9/DX9c SM 2.0 2004
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I965, // GL2.0/2.1 DX9/DX10 SM 3.0/4.0 2006
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SandyBridge, // GL3.1 CL1.1 DX10.1 SM 4.0 2010
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UnknownIntel = 2999,
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UnknownChipClass = 99999
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};
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class KWIN_EXPORT GLPlatform
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{
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public:
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~GLPlatform();
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/**
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* Runs the detection code using the current OpenGL context.
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*/
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void detect();
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/**
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* Prints the results of the detection code.
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*/
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void printResults() const;
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/**
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* Returns a pointer to the GLPlatform instance.
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*/
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static GLPlatform *instance();
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/**
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* Returns true if the driver support the given feature, and false otherwise.
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*/
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bool supports(GLFeature feature) const;
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/**
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* Returns the OpenGL version.
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*/
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qint64 glVersion() const;
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/**
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* Returns the GLSL version if the driver supports GLSL, and 0 otherwise.
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*/
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qint64 glslVersion() const;
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/**
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* Returns the Mesa version if the driver is a Mesa driver, and 0 otherwise.
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*/
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qint64 mesaVersion() const;
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/**
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* Returns the Gallium version if the driver is a Gallium driver, and 0 otherwise.
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*/
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qint64 galliumVersion() const;
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/**
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* Returns the X server version.
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*
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* Note that the version number changed from 7.2 to 1.3 in the first release
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* following the doupling of the X server from the katamari.
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*
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* For non X.org servers, this method returns 0.
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*/
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qint64 serverVersion() const;
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/**
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* Returns the Linux kernel version.
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*
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* If the kernel is not a Linux kernel, this method returns 0.
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*/
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qint64 kernelVersion() const;
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/**
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* Returns the driver version.
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*
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* For Mesa drivers, this is the same as the Mesa version number.
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*/
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qint64 driverVersion() const;
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/**
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* Returns the driver.
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*/
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Driver driver() const;
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/**
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* Returns the chip class.
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*/
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ChipClass chipClass() const;
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/**
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* Returns true if the driver is a Mesa driver, and false otherwise.
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*/
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bool isMesaDriver() const;
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/**
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* Returns true if the GPU is a Radeon GPU, and false otherwise.
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*/
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bool isRadeon() const;
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/**
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* Returns true if the GPU is an NVIDIA GPU, and false otherwise.
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*/
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bool isNvidia() const;
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/**
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* Returns true if the GPU is an Intel GPU, and false otherwise.
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*/
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bool isIntel() const;
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private:
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GLPlatform();
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private:
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QByteArray m_renderer;
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QByteArray m_vendor;
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QByteArray m_version;
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QByteArray m_glsl_version;
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QByteArray m_chipset;
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QSet<QByteArray> m_extensions;
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Driver m_driver;
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ChipClass m_chipClass;
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qint64 m_glVersion;
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qint64 m_glslVersion;
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qint64 m_mesaVersion;
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qint64 m_driverVersion;
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qint64 m_galliumVersion;
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qint64 m_serverVersion;
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qint64 m_kernelVersion;
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bool m_looseBinding:1;
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bool m_directRendering:1;
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bool m_supportsGLSL:1;
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bool m_limitedGLSL:1;
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bool m_textureNPOT:1;
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bool m_limitedNPOT:1;
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static GLPlatform *s_platform;
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};
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inline GLPlatform *GLPlatform::instance()
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{
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if (!s_platform)
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s_platform = new GLPlatform;
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return s_platform;
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}
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} // namespace KWin
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#endif // KWIN_HAVE_OPENGL
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#endif // KWIN_GLPLATFORM_H
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