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kwin/libkwineffects/kwinglplatform.cpp
Martin Gräßlin 416898ecfa Remove kwinglobals.h include where not needed any more 
Most headers only included kwinglobals.h just for the KWIN_EXPORT
macro. As that's not used any more, we don't need that include any
more.
2013-12-02 07:56:16 +01:00

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/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2010 Fredrik Höglund <fredrik@kde.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; either version 2 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 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 <http://www.gnu.org/licenses/>.
*********************************************************************/
#include "kwinglplatform.h"
#include "kwinglutils.h"
#include <QRegExp>
#include <QStringList>
#include <QDebug>
#include <sys/utsname.h>
#include <iostream>
#include <iomanip>
#include <ios>
namespace KWin
{
GLPlatform *GLPlatform::s_platform = 0;
static qint64 parseVersionString(const QByteArray &version)
{
// Skip any leading non digit
int start = 0;
while (start < version.length() && !QChar::fromLatin1(version[start]).isDigit())
start++;
// Strip any non digit, non '.' characters from the end
int end = start;
while (end < version.length() && (version[end] == '.' || QChar::fromLatin1(version[end]).isDigit()))
end++;
const QByteArray result = version.mid(start, end-start);
const QList<QByteArray> tokens = result.split('.');
const qint64 major = tokens.at(0).toInt();
const qint64 minor = tokens.count() > 1 ? tokens.at(1).toInt() : 0;
const qint64 patch = tokens.count() > 2 ? tokens.at(2).toInt() : 0;
return kVersionNumber(major, minor, patch);
}
static qint64 getXServerVersion()
{
qint64 major, minor, patch;
Display *dpy = display();
if (strstr(ServerVendor(dpy), "X.Org")) {
const int release = VendorRelease(dpy);
major = (release / 10000000);
minor = (release / 100000) % 100;
patch = (release / 1000) % 100;
} else {
major = 0;
minor = 0;
patch = 0;
}
return kVersionNumber(major, minor, patch);
}
static qint64 getKernelVersion()
{
struct utsname name;
uname(&name);
if (QByteArray(name.sysname) == "Linux")
return parseVersionString(name.release);
return 0;
}
// Extracts the portion of a string that matches a regular expression
static QString extract(const QString &string, const QString &match, int offset = 0)
{
QString result;
QRegExp rx(match);
int pos = rx.indexIn(string, offset);
if (pos != -1)
result = string.mid(pos, rx.matchedLength());
return result;
}
static ChipClass detectRadeonClass(const QString &chipset)
{
if (chipset.isEmpty())
return UnknownRadeon;
if (chipset.contains(QStringLiteral("R100")) ||
chipset.contains(QStringLiteral("RV100")) ||
chipset.contains(QStringLiteral("RS100")))
return R100;
if (chipset.contains(QStringLiteral("RV200")) ||
chipset.contains(QStringLiteral("RS200")) ||
chipset.contains(QStringLiteral("R200")) ||
chipset.contains(QStringLiteral("RV250")) ||
chipset.contains(QStringLiteral("RS300")) ||
chipset.contains(QStringLiteral("RV280")))
return R200;
if (chipset.contains(QStringLiteral("R300")) ||
chipset.contains(QStringLiteral("R350")) ||
chipset.contains(QStringLiteral("R360")) ||
chipset.contains(QStringLiteral("RV350")) ||
chipset.contains(QStringLiteral("RV370")) ||
chipset.contains(QStringLiteral("RV380")))
return R300;
if (chipset.contains(QStringLiteral("R420")) ||
chipset.contains(QStringLiteral("R423")) ||
chipset.contains(QStringLiteral("R430")) ||
chipset.contains(QStringLiteral("R480")) ||
chipset.contains(QStringLiteral("R481")) ||
chipset.contains(QStringLiteral("RV410")) ||
chipset.contains(QStringLiteral("RS400")) ||
chipset.contains(QStringLiteral("RC410")) ||
chipset.contains(QStringLiteral("RS480")) ||
chipset.contains(QStringLiteral("RS482")) ||
chipset.contains(QStringLiteral("RS600")) ||
chipset.contains(QStringLiteral("RS690")) ||
chipset.contains(QStringLiteral("RS740")))
return R400;
if (chipset.contains(QStringLiteral("RV515")) ||
chipset.contains(QStringLiteral("R520")) ||
chipset.contains(QStringLiteral("RV530")) ||
chipset.contains(QStringLiteral("R580")) ||
chipset.contains(QStringLiteral("RV560")) ||
chipset.contains(QStringLiteral("RV570")))
return R500;
if (chipset.contains(QStringLiteral("R600")) ||
chipset.contains(QStringLiteral("RV610")) ||
chipset.contains(QStringLiteral("RV630")) ||
chipset.contains(QStringLiteral("RV670")) ||
chipset.contains(QStringLiteral("RV620")) ||
chipset.contains(QStringLiteral("RV635")) ||
chipset.contains(QStringLiteral("RS780")) ||
chipset.contains(QStringLiteral("RS880")))
return R600;
if (chipset.contains(QStringLiteral("R700")) ||
chipset.contains(QStringLiteral("RV770")) ||
chipset.contains(QStringLiteral("RV730")) ||
chipset.contains(QStringLiteral("RV710")) ||
chipset.contains(QStringLiteral("RV740")))
return R700;
if (chipset.contains(QStringLiteral("EVERGREEN")) || // Not an actual chipset, but returned by R600G in 7.9
chipset.contains(QStringLiteral("CEDAR")) ||
chipset.contains(QStringLiteral("REDWOOD")) ||
chipset.contains(QStringLiteral("JUNIPER")) ||
chipset.contains(QStringLiteral("CYPRESS")) ||
chipset.contains(QStringLiteral("HEMLOCK")) ||
chipset.contains(QStringLiteral("PALM")))
return Evergreen;
if (chipset.contains(QStringLiteral("SUMO")) ||
chipset.contains(QStringLiteral("SUMO2")) ||
chipset.contains(QStringLiteral("BARTS")) ||
chipset.contains(QStringLiteral("TURKS")) ||
chipset.contains(QStringLiteral("CAICOS")) ||
chipset.contains(QStringLiteral("CAYMAN")))
return NorthernIslands;
QString name = extract(chipset, QStringLiteral("HD [0-9]{4}")); // HD followed by a space and 4 digits
if (!name.isEmpty()) {
const int id = name.right(4).toInt();
if (id == 6250 || id == 6310) // Palm
return Evergreen;
if (id >= 6000 && id < 7000)
return NorthernIslands; // HD 6xxx
if (id >= 5000 && id < 6000)
return Evergreen; // HD 5xxx
if (id >= 4000 && id < 5000)
return R700; // HD 4xxx
if (id >= 2000 && id < 4000) // HD 2xxx/3xxx
return R600;
return UnknownRadeon;
}
name = extract(chipset, QStringLiteral("X[0-9]{3,4}")); // X followed by 3-4 digits
if (!name.isEmpty()) {
const int id = name.mid(1, -1).toInt();
// X1xxx
if (id >= 1300)
return R500;
// X7xx, X8xx, X12xx, 2100
if ((id >= 700 && id < 1000) || id >= 1200)
return R400;
// X200, X3xx, X5xx, X6xx, X10xx, X11xx
if ((id >= 300 && id < 700) || (id >= 1000 && id < 1200))
return R300;
return UnknownRadeon;
}
name = extract(chipset, QStringLiteral("\\b[0-9]{4}\\b")); // A group of 4 digits
if (!name.isEmpty()) {
const int id = name.toInt();
// 7xxx
if (id >= 7000 && id < 8000)
return R100;
// 8xxx, 9xxx
if (id >= 8000 && id < 9500)
return R200;
// 9xxx
if (id >= 9500)
return R300;
if (id == 2100)
return R400;
}
return UnknownRadeon;
}
static ChipClass detectNVidiaClass(const QString &chipset)
{
QString name = extract(chipset, QStringLiteral("\\bNV[0-9,A-F]{2}\\b")); // NV followed by two hexadecimal digits
if (!name.isEmpty()) {
const int id = chipset.mid(2, -1).toInt(0, 16); // Strip the 'NV' from the id
switch(id & 0xf0) {
case 0x00:
case 0x10:
return NV10;
case 0x20:
return NV20;
case 0x30:
return NV30;
case 0x40:
case 0x60:
return NV40;
case 0x50:
case 0x80:
case 0x90:
case 0xA0:
return G80;
default:
return UnknownNVidia;
}
}
if (chipset.contains(QStringLiteral("GeForce2")) || chipset.contains(QStringLiteral("GeForce 256")))
return NV10;
if (chipset.contains(QStringLiteral("GeForce3")))
return NV20;
if (chipset.contains(QStringLiteral("GeForce4"))) {
if (chipset.contains(QStringLiteral("MX 420")) ||
chipset.contains(QStringLiteral("MX 440")) || // including MX 440SE
chipset.contains(QStringLiteral("MX 460")) ||
chipset.contains(QStringLiteral("MX 4000")) ||
chipset.contains(QStringLiteral("PCX 4300")))
return NV10;
return NV20;
}
// GeForce 5,6,7,8,9
name = extract(chipset, QStringLiteral("GeForce (FX |PCX |Go )?\\d{4}(M|\\b)")).trimmed();
if (!name.isEmpty()) {
if (!name[name.length() - 1].isDigit())
name.chop(1);
const int id = name.right(4).toInt();
if (id < 6000)
return NV30;
if (id >= 6000 && id < 8000)
return NV40;
if (id >= 8000)
return G80;
return UnknownNVidia;
}
// GeForce 100/200/300/400/500
name = extract(chipset, QStringLiteral("GeForce (G |GT |GTX |GTS )?\\d{3}(M|\\b)")).trimmed();
if (!name.isEmpty()) {
if (!name[name.length() - 1].isDigit())
name.chop(1);
const int id = name.right(3).toInt();
if (id >= 100 && id < 600) {
if (id >= 400)
return GF100;
return G80;
}
return UnknownNVidia;
}
return UnknownNVidia;
}
static ChipClass detectIntelClass(const QByteArray &chipset)
{
// see mesa repository: src/mesa/drivers/dri/intel/intel_context.c
// GL 1.3, DX8? SM ?
if (chipset.contains("845G") ||
chipset.contains("830M") ||
chipset.contains("852GM/855GM") ||
chipset.contains("865G"))
return I8XX;
// GL 1.4, DX 9.0, SM 2.0
if (chipset.contains("915G") ||
chipset.contains("E7221G") ||
chipset.contains("915GM") ||
chipset.contains("945G") || // DX 9.0c
chipset.contains("945GM") ||
chipset.contains("945GME") ||
chipset.contains("Q33") || // GL1.5
chipset.contains("Q35") ||
chipset.contains("G33") ||
chipset.contains("965Q") || // GMA 3000, but apparently considered gen 4 by the driver
chipset.contains("946GZ") || // GMA 3000, but apparently considered gen 4 by the driver
chipset.contains("IGD"))
return I915;
// GL 2.0, DX 9.0c, SM 3.0
if (chipset.contains("965G") ||
chipset.contains("G45/G43") || // SM 4.0
chipset.contains("965GM") || // GL 2.1
chipset.contains("965GME/GLE") ||
chipset.contains("GM45") ||
chipset.contains("Q45/Q43") ||
chipset.contains("G41") ||
chipset.contains("B43") ||
chipset.contains("Ironlake"))
return I965;
// GL 3.1, CL 1.1, DX 10.1
if (chipset.contains("Sandybridge")) {
return SandyBridge;
}
// GL4.0, CL1.1, DX11, SM 5.0
if (chipset.contains("Ivybridge")) {
return IvyBridge;
}
// GL4.0, CL1.2, DX11.1, SM 5.0
if (chipset.contains("Haswell")) {
return Haswell;
}
return UnknownIntel;
}
QString GLPlatform::versionToString(qint64 version)
{
int major = (version >> 32);
int minor = (version >> 16) & 0xffff;
int patch = version & 0xffff;
QString string = QString::number(major) + QStringLiteral(".") + QString::number(minor);
if (patch != 0)
string += QStringLiteral(".") + QString::number(patch);
return string;
}
QString GLPlatform::driverToString(Driver driver)
{
switch(driver) {
case Driver_R100:
return QStringLiteral("Radeon");
case Driver_R200:
return QStringLiteral("R200");
case Driver_R300C:
return QStringLiteral("R300C");
case Driver_R300G:
return QStringLiteral("R300G");
case Driver_R600C:
return QStringLiteral("R600C");
case Driver_R600G:
return QStringLiteral("R600G");
case Driver_Nouveau:
return QStringLiteral("Nouveau");
case Driver_Intel:
return QStringLiteral("Intel");
case Driver_NVidia:
return QStringLiteral("NVIDIA");
case Driver_Catalyst:
return QStringLiteral("Catalyst");
case Driver_Swrast:
return QStringLiteral("Software rasterizer");
case Driver_Softpipe:
return QStringLiteral("softpipe");
case Driver_Llvmpipe:
return QStringLiteral("LLVMpipe");
case Driver_VirtualBox:
return QStringLiteral("VirtualBox (Chromium)");
case Driver_VMware:
return QStringLiteral("VMware (SVGA3D)");
default:
return QStringLiteral("Unknown");
}
}
QString GLPlatform::chipClassToString(ChipClass chipClass)
{
switch(chipClass) {
case R100:
return QStringLiteral("R100");
case R200:
return QStringLiteral("R200");
case R300:
return QStringLiteral("R300");
case R400:
return QStringLiteral("R400");
case R500:
return QStringLiteral("R500");
case R600:
return QStringLiteral("R600");
case R700:
return QStringLiteral("R700");
case Evergreen:
return QStringLiteral("EVERGREEN");
case NorthernIslands:
return QStringLiteral("NI");
case NV10:
return QStringLiteral("NV10");
case NV20:
return QStringLiteral("NV20");
case NV30:
return QStringLiteral("NV30");
case NV40:
return QStringLiteral("NV40/G70");
case G80:
return QStringLiteral("G80/G90");
case GF100:
return QStringLiteral("GF100");
case I8XX:
return QStringLiteral("i830/i835");
case I915:
return QStringLiteral("i915/i945");
case I965:
return QStringLiteral("i965");
case SandyBridge:
return QStringLiteral("SandyBridge");
case IvyBridge:
return QStringLiteral("IvyBridge");
case Haswell:
return QStringLiteral("Haswell");
default:
return QStringLiteral("Unknown");
}
}
// -------
GLPlatform::GLPlatform()
: m_driver(Driver_Unknown),
m_chipClass(UnknownChipClass),
m_recommendedCompositor(XRenderCompositing),
m_mesaVersion(0),
m_galliumVersion(0),
m_looseBinding(false),
m_directRendering(false),
m_supportsGLSL(false),
m_limitedGLSL(false),
m_textureNPOT(false),
m_limitedNPOT(false),
m_virtualMachine(false)
{
}
GLPlatform::~GLPlatform()
{
}
void GLPlatform::detect(OpenGLPlatformInterface platformInterface)
{
m_vendor = (const char*)glGetString(GL_VENDOR);
m_renderer = (const char*)glGetString(GL_RENDERER);
m_version = (const char*)glGetString(GL_VERSION);
// Parse the OpenGL version
const QList<QByteArray> versionTokens = m_version.split(' ');
if (versionTokens.count() > 0) {
const QByteArray version = QByteArray(m_version);
m_glVersion = parseVersionString(version);
}
#ifndef KWIN_HAVE_OPENGLES
if (m_glVersion >= kVersionNumber(3, 0)) {
PFNGLGETSTRINGIPROC glGetStringi;
#ifdef KWIN_HAVE_EGL
if (platformInterface == EglPlatformInterface)
glGetStringi = (PFNGLGETSTRINGIPROC) eglGetProcAddress("glGetStringi");
else
#endif
glGetStringi = (PFNGLGETSTRINGIPROC) glXGetProcAddress((const GLubyte *) "glGetStringi");
int count;
glGetIntegerv(GL_NUM_EXTENSIONS, &count);
for (int i = 0; i < count; i++) {
const char *name = (const char *) glGetStringi(GL_EXTENSIONS, i);
m_extensions.insert(name);
}
} else
#endif
{
const QByteArray extensions = (const char *) glGetString(GL_EXTENSIONS);
m_extensions = QSet<QByteArray>::fromList(extensions.split(' '));
}
// Parse the Mesa version
const int mesaIndex = versionTokens.indexOf("Mesa");
if (mesaIndex != -1) {
const QByteArray version = versionTokens.at(mesaIndex + 1);
m_mesaVersion = parseVersionString(version);
}
if (platformInterface == EglPlatformInterface) {
m_directRendering = true;
#ifdef KWIN_HAVE_OPENGLES
m_supportsGLSL = true;
m_textureNPOT = true;
#else
m_supportsGLSL = m_extensions.contains("GL_ARB_shader_objects") &&
m_extensions.contains("GL_ARB_fragment_shader") &&
m_extensions.contains("GL_ARB_vertex_shader");
m_textureNPOT = m_extensions.contains("GL_ARB_texture_non_power_of_two");
#endif
} else if (platformInterface == GlxPlatformInterface) {
#ifndef KWIN_HAVE_OPENGLES
GLXContext ctx = glXGetCurrentContext();
m_directRendering = glXIsDirect(display(), ctx);
m_supportsGLSL = m_directRendering &&
m_extensions.contains("GL_ARB_shader_objects") &&
m_extensions.contains("GL_ARB_fragment_shader") &&
m_extensions.contains("GL_ARB_vertex_shader");
m_textureNPOT = m_extensions.contains("GL_ARB_texture_non_power_of_two");
#endif
}
m_serverVersion = getXServerVersion();
m_kernelVersion = getKernelVersion();
m_glslVersion = 0;
m_glsl_version = QByteArray();
if (m_supportsGLSL) {
// Parse the GLSL version
m_glsl_version = (const char*)glGetString(GL_SHADING_LANGUAGE_VERSION);
m_glslVersion = parseVersionString(m_glsl_version);
}
m_chipset = "Unknown";
m_preferBufferSubData = false;
// Mesa classic drivers
// ====================================================
// Radeon
if (m_renderer.startsWith("Mesa DRI R")) {
// Sample renderer string: Mesa DRI R600 (RV740 94B3) 20090101 x86/MMX/SSE2 TCL DRI2
const QList<QByteArray> tokens = m_renderer.split(' ');
const QByteArray chipClass = tokens.at(2);
m_chipset = tokens.at(3).mid(1, -1); // Strip the leading '('
if (chipClass == "R100")
// Vendor: Tungsten Graphics, Inc.
m_driver = Driver_R100;
else if (chipClass == "R200")
// Vendor: Tungsten Graphics, Inc.
m_driver = Driver_R200;
else if (chipClass == "R300")
// Vendor: DRI R300 Project
m_driver = Driver_R300C;
else if (chipClass == "R600")
// Vendor: Advanced Micro Devices, Inc.
m_driver = Driver_R600C;
m_chipClass = detectRadeonClass(QString::fromUtf8(m_chipset));
}
// Intel
else if (m_renderer.contains("Intel")) {
// Vendor: Tungsten Graphics, Inc.
// Sample renderer string: Mesa DRI Mobile Intel® GM45 Express Chipset GEM 20100328 2010Q1
QByteArray chipset;
if (m_renderer.startsWith("Intel(R) Integrated Graphics Device"))
chipset = "IGD";
else
chipset = m_renderer;
m_driver = Driver_Intel;
m_chipClass = detectIntelClass(chipset);
}
// Gallium drivers
// ====================================================
else if (m_renderer.contains("Gallium")) {
// Sample renderer string: Gallium 0.4 on AMD RV740
const QList<QByteArray> tokens = m_renderer.split(' ');
m_galliumVersion = parseVersionString(tokens.at(1));
m_chipset = (tokens.at(3) == "AMD" || tokens.at(3) == "ATI") ?
tokens.at(4) : tokens.at(3);
// R300G
if (m_vendor == "X.Org R300 Project") {
m_chipClass = detectRadeonClass(QString::fromUtf8(m_chipset));
m_driver = Driver_R300G;
}
// R600G
else if (m_vendor == "X.Org" &&
(m_renderer.contains("R6") ||
m_renderer.contains("R7") ||
m_renderer.contains("RV6") ||
m_renderer.contains("RV7") ||
m_renderer.contains("RS780") ||
m_renderer.contains("RS880") ||
m_renderer.contains("CEDAR") ||
m_renderer.contains("REDWOOD") ||
m_renderer.contains("JUNIPER") ||
m_renderer.contains("CYPRESS") ||
m_renderer.contains("HEMLOCK") ||
m_renderer.contains("PALM") ||
m_renderer.contains("EVERGREEN") ||
m_renderer.contains("SUMO") ||
m_renderer.contains("SUMO2") ||
m_renderer.contains("BARTS") ||
m_renderer.contains("TURKS") ||
m_renderer.contains("CAICOS") ||
m_renderer.contains("CAYMAN"))) {
m_chipClass = detectRadeonClass(QString::fromUtf8(m_chipset));
m_driver = Driver_R600G;
}
// Nouveau
else if (m_vendor == "nouveau") {
m_chipClass = detectNVidiaClass(QString::fromUtf8(m_chipset));
m_driver = Driver_Nouveau;
}
// softpipe
else if (m_vendor == "VMware, Inc." && m_chipset == "softpipe" ) {
m_driver = Driver_Softpipe;
}
// llvmpipe
else if (m_vendor == "VMware, Inc." && m_chipset == "llvmpipe") {
m_driver = Driver_Llvmpipe;
}
// SVGA3D
else if (m_vendor == "VMware, Inc." && m_chipset.contains("SVGA3D")) {
m_driver = Driver_VMware;
}
}
// Properietary drivers
// ====================================================
else if (m_vendor == "ATI Technologies Inc.") {
m_chipClass = detectRadeonClass(QString::fromUtf8(m_renderer));
m_driver = Driver_Catalyst;
if (versionTokens.count() > 1 && versionTokens.at(2)[0] == '(')
m_driverVersion = parseVersionString(versionTokens.at(1));
else if (versionTokens.count() > 0)
m_driverVersion = parseVersionString(versionTokens.at(0));
else
m_driverVersion = 0;
}
else if (m_vendor == "NVIDIA Corporation") {
m_chipClass = detectNVidiaClass(QString::fromUtf8(m_renderer));
m_driver = Driver_NVidia;
int index = versionTokens.indexOf("NVIDIA");
if (versionTokens.count() > index)
m_driverVersion = parseVersionString(versionTokens.at(index + 1));
else
m_driverVersion = 0;
}
else if (m_renderer == "Software Rasterizer") {
m_driver = Driver_Swrast;
}
// Virtual Hardware
// ====================================================
else if (m_vendor == "Humper" && m_renderer == "Chromium") {
// Virtual Box
m_driver = Driver_VirtualBox;
const int index = versionTokens.indexOf("Chromium");
if (versionTokens.count() > index)
m_driverVersion = parseVersionString(versionTokens.at(index + 1));
else
m_driverVersion = 0;
if (qgetenv("QT_OPENGL_NO_SANITY_CHECK").isNull()) {
// workaround for QTBUG-34898
m_recommendedCompositor = XRenderCompositing;
}
}
// Driver/GPU specific features
// ====================================================
if (isRadeon()) {
// R200 technically has a programmable pipeline, but since it's SM 1.4,
// it's too limited to to be of any practical value to us.
if (m_chipClass < R300)
m_supportsGLSL = false;
m_limitedGLSL = false;
m_limitedNPOT = false;
if (m_chipClass < R600) {
if (driver() == Driver_Catalyst)
m_textureNPOT = m_limitedNPOT = false; // Software fallback
else if (driver() == Driver_R300G)
m_limitedNPOT = m_textureNPOT;
m_limitedGLSL = m_supportsGLSL;
}
if (m_chipClass < R300) {
// fallback to XRender for R100 and R200
m_recommendedCompositor = XRenderCompositing;
} else if (m_chipClass < R600) {
// OpenGL 1 due to NPOT limitations not supported by KWin's shaders
m_recommendedCompositor = OpenGL1Compositing;
} else {
m_recommendedCompositor = OpenGL2Compositing;
}
if (driver() == Driver_R600G ||
(driver() == Driver_R600C && m_renderer.contains("DRI2"))) {
m_looseBinding = true;
}
}
if (isNvidia()) {
if (m_driver == Driver_NVidia && m_chipClass < NV40)
m_supportsGLSL = false; // High likelihood of software emulation
if (m_driver == Driver_NVidia) {
m_looseBinding = true;
m_preferBufferSubData = true;
}
if (m_chipClass < NV20) {
m_recommendedCompositor = XRenderCompositing;
} else if (m_chipClass < NV40) {
m_recommendedCompositor = OpenGL1Compositing;
} else {
m_recommendedCompositor = OpenGL2Compositing;
}
m_limitedNPOT = m_textureNPOT && m_chipClass < NV40;
m_limitedGLSL = m_supportsGLSL && m_chipClass < G80;
}
if (isIntel()) {
if (m_chipClass < I915)
m_supportsGLSL = false;
m_limitedGLSL = m_supportsGLSL && m_chipClass < I965;
m_looseBinding = true;
if (m_chipClass < I965) {
m_recommendedCompositor = OpenGL1Compositing;
} else {
m_recommendedCompositor = OpenGL2Compositing;
}
if (m_chipClass == SandyBridge && m_renderer.contains("Mobile") && qgetenv("QT_OPENGL_NO_SANITY_CHECK").isNull()) {
// workaround for QTBUG-34898
m_recommendedCompositor = XRenderCompositing;
}
}
if (isMesaDriver() && platformInterface == EglPlatformInterface) {
// According to the reference implementation in
// mesa/demos/src/egl/opengles1/texture_from_pixmap
// the mesa egl implementation does not require a strict binding (so far).
m_looseBinding = true;
}
if (isSoftwareEmulation()) {
// we recommend XRender
m_recommendedCompositor = XRenderCompositing;
if (m_driver < Driver_Llvmpipe) {
// Software emulation does not provide GLSL
m_limitedGLSL = m_supportsGLSL = false;
} else {
// llvmpipe does support GLSL
m_limitedGLSL = false;
m_supportsGLSL = true;
}
}
if (m_chipClass == UnknownChipClass && m_driver == Driver_Unknown) {
// we don't know the hardware. Let's be optimistic and assume OpenGL compatible hardware
m_recommendedCompositor = OpenGL2Compositing;
m_supportsGLSL = true;
}
if (isVirtualBox()) {
m_virtualMachine = true;
}
if (isVMware()) {
m_virtualMachine = true;
}
}
static void print(const QString &label, const QString &setting)
{
std::cout << std::setw(40) << std::left
<< qPrintable(label) << qPrintable(setting) << std::endl;
}
void GLPlatform::printResults() const
{
print(QStringLiteral("OpenGL vendor string:"), QString::fromUtf8(m_vendor));
print(QStringLiteral("OpenGL renderer string:"), QString::fromUtf8(m_renderer));
print(QStringLiteral("OpenGL version string:"), QString::fromUtf8(m_version));
if (m_supportsGLSL)
print(QStringLiteral("OpenGL shading language version string:"), QString::fromUtf8(m_glsl_version));
print(QStringLiteral("Driver:"), driverToString(m_driver));
if (!isMesaDriver())
print(QStringLiteral("Driver version:"), versionToString(m_driverVersion));
print(QStringLiteral("GPU class:"), chipClassToString(m_chipClass));
print(QStringLiteral("OpenGL version:"), versionToString(m_glVersion));
if (m_supportsGLSL)
print(QStringLiteral("GLSL version:"), versionToString(m_glslVersion));
if (isMesaDriver())
print(QStringLiteral("Mesa version:"), versionToString(mesaVersion()));
//if (galliumVersion() > 0)
// print("Gallium version:", versionToString(m_galliumVersion));
if (serverVersion() > 0)
print(QStringLiteral("X server version:"), versionToString(m_serverVersion));
if (kernelVersion() > 0)
print(QStringLiteral("Linux kernel version:"), versionToString(m_kernelVersion));
print(QStringLiteral("Direct rendering:"), m_directRendering ? QStringLiteral("yes") : QStringLiteral("no"));
print(QStringLiteral("Requires strict binding:"), !m_looseBinding ? QStringLiteral("yes") : QStringLiteral("no"));
print(QStringLiteral("GLSL shaders:"), m_supportsGLSL ? (m_limitedGLSL ? QStringLiteral("limited") : QStringLiteral("yes")) : QStringLiteral("no"));
print(QStringLiteral("Texture NPOT support:"), m_textureNPOT ? (m_limitedNPOT ? QStringLiteral("limited") : QStringLiteral("yes")) : QStringLiteral("no"));
print(QStringLiteral("Virtual Machine:"), m_virtualMachine ? QStringLiteral("yes") : QStringLiteral("no"));
}
bool GLPlatform::supports(GLFeature feature) const
{
switch(feature) {
case LooseBinding:
return m_looseBinding;
case GLSL:
return m_supportsGLSL;
case LimitedGLSL:
return m_limitedGLSL;
case TextureNPOT:
return m_textureNPOT;
case LimitedNPOT:
return m_limitedNPOT;
default:
return false;
}
}
qint64 GLPlatform::glVersion() const
{
return m_glVersion;
}
qint64 GLPlatform::glslVersion() const
{
return m_glslVersion;
}
qint64 GLPlatform::mesaVersion() const
{
return m_mesaVersion;
}
qint64 GLPlatform::galliumVersion() const
{
return m_galliumVersion;
}
qint64 GLPlatform::serverVersion() const
{
return m_serverVersion;
}
qint64 GLPlatform::kernelVersion() const
{
return m_kernelVersion;
}
qint64 GLPlatform::driverVersion() const
{
if (isMesaDriver())
return mesaVersion();
return m_driverVersion;
}
Driver GLPlatform::driver() const
{
return m_driver;
}
ChipClass GLPlatform::chipClass() const
{
return m_chipClass;
}
bool GLPlatform::isMesaDriver() const
{
return mesaVersion() > 0;
}
bool GLPlatform::isGalliumDriver() const
{
return galliumVersion() > 0;
}
bool GLPlatform::isRadeon() const
{
return m_chipClass >= R100 && m_chipClass <= UnknownRadeon;
}
bool GLPlatform::isNvidia() const
{
return m_chipClass >= NV10 && m_chipClass <= UnknownNVidia;
}
bool GLPlatform::isIntel() const
{
return m_chipClass >= I8XX && m_chipClass <= UnknownIntel;
}
bool GLPlatform::isVirtualBox() const
{
return m_driver == Driver_VirtualBox;
}
bool GLPlatform::isVMware() const
{
return m_driver == Driver_VMware;
}
bool GLPlatform::isSoftwareEmulation() const
{
return m_driver == Driver_Softpipe || m_driver == Driver_Swrast || m_driver == Driver_Llvmpipe;
}
const QByteArray &GLPlatform::glRendererString() const
{
return m_renderer;
}
const QByteArray &GLPlatform::glVendorString() const
{
return m_vendor;
}
const QByteArray &GLPlatform::glVersionString() const
{
return m_version;
}
const QByteArray &GLPlatform::glShadingLanguageVersionString() const
{
return m_glsl_version;
}
bool GLPlatform::isDirectRendering() const
{
return m_directRendering;
}
bool GLPlatform::isLooseBinding() const
{
return m_looseBinding;
}
bool GLPlatform::isVirtualMachine() const
{
return m_virtualMachine;
}
CompositingType GLPlatform::recommendedCompositor() const
{
return m_recommendedCompositor;
}
bool GLPlatform::preferBufferSubData() const
{
return m_preferBufferSubData;
}
bool GLPlatform::isGLES() const
{
#ifdef KWIN_HAVE_OPENGLES
return true;
#else
return false;
#endif
}
} // namespace KWin
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