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kwin/libkwineffects/kwinglplatform.cpp
Martin Gräßlin 1dd614ee4b Improved detection of OpenGL software emulation 
Adding a new method to retrieve whether the OpenGL implementation
uses any kind of software emulation and no software emulation can
provide GLSL support, even if it claims so.

Thanks to Maurel for testing again and again proposed patches.

BUG: 271166
2011-05-06 18:16:38 +02:00

872 lines
24 KiB
C++
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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 <kwinglobals.h>
#include <QRegExp>
#include <QStringList>
#include <QDebug>
#include <sys/utsname.h>
#include <iostream>
#include <iomanip>
#include <ios>
#ifdef KWIN_HAVE_OPENGL
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(version[start]).isDigit())
start++;
// Strip any non digit, non '.' characters from the end
int end = start;
while (end < version.length() && (version[end] == '.' || QChar(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("R100") ||
chipset.contains("RV100") ||
chipset.contains("RS100"))
return R100;
if (chipset.contains("RV200") ||
chipset.contains("RS200") ||
chipset.contains("R200") ||
chipset.contains("RV250") ||
chipset.contains("RS300") ||
chipset.contains("RV280"))
return R200;
if (chipset.contains("R300") ||
chipset.contains("R350") ||
chipset.contains("R360") ||
chipset.contains("RV350") ||
chipset.contains("RV370") ||
chipset.contains("RV380"))
return R300;
if (chipset.contains("R420") ||
chipset.contains("R423") ||
chipset.contains("R430") ||
chipset.contains("R480") ||
chipset.contains("R481") ||
chipset.contains("RV410") ||
chipset.contains("RS400") ||
chipset.contains("RC410") ||
chipset.contains("RS480") ||
chipset.contains("RS482") ||
chipset.contains("RS600") ||
chipset.contains("RS690") ||
chipset.contains("RS740"))
return R400;
if (chipset.contains("RV515") ||
chipset.contains("R520") ||
chipset.contains("RV530") ||
chipset.contains("R580") ||
chipset.contains("RV560") ||
chipset.contains("RV570"))
return R500;
if (chipset.contains("R600") ||
chipset.contains("RV610") ||
chipset.contains("RV630") ||
chipset.contains("RV670") ||
chipset.contains("RV620") ||
chipset.contains("RV635") ||
chipset.contains("RS780") ||
chipset.contains("RS880"))
return R600;
if (chipset.contains("R700") ||
chipset.contains("RV770") ||
chipset.contains("RV730") ||
chipset.contains("RV710") ||
chipset.contains("RV740"))
return R700;
if (chipset.contains("EVERGREEN") || // Not an actual chipset, but returned by R600G in 7.9
chipset.contains("CEDAR") ||
chipset.contains("REDWOOD") ||
chipset.contains("JUNIPER") ||
chipset.contains("CYPRESS") ||
chipset.contains("PALM") ||
chipset.contains("HEMLOCK"))
return Evergreen;
if (chipset.contains("BARTS") ||
chipset.contains("TURKS") ||
chipset.contains("CAICOS"))
return NorthernIslands;
QString name = extract(chipset, "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, "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, "\\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, "\\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("GeForce2") || chipset.contains("GeForce 256"))
return NV10;
if (chipset.contains("GeForce3"))
return NV20;
if (chipset.contains("GeForce4")) {
if (chipset.contains("MX 420") ||
chipset.contains("MX 440") || // including MX 440SE
chipset.contains("MX 460") ||
chipset.contains("MX 4000") ||
chipset.contains("PCX 4300"))
return NV10;
return NV20;
}
// GeForce 5,6,7,8,9
name = extract(chipset, "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, "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)
{
// 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") ||
chipset.contains("Sandybridge")) // GL 3.1, CL 1.1, DX 10.1
return I965;
return UnknownIntel;
}
static QString versionToString(qint64 version)
{
int major = (version >> 32);
int minor = (version >> 16) & 0xffff;
int patch = version & 0xffff;
QString string = QString::number(major) + QChar('.') + QString::number(minor);
if (patch != 0)
string += QChar('.') + QString::number(patch);
return string;
}
static QString driverToString(Driver driver)
{
switch(driver) {
case Driver_R100:
return "Radeon";
case Driver_R200:
return "R200";
case Driver_R300C:
return "R300C";
case Driver_R300G:
return "R300G";
case Driver_R600C:
return "R600C";
case Driver_R600G:
return "R600G";
case Driver_Nouveau:
return "Nouveau";
case Driver_Intel:
return "Intel";
case Driver_NVidia:
return "NVIDIA";
case Driver_Catalyst:
return "Catalyst";
case Driver_Swrast:
return "Software rasterizer";
case Driver_Softpipe:
return "softpipe";
case Driver_Llvmpipe:
return "LLVMpipe";
default:
return "Unknown";
}
}
static QString chipClassToString(ChipClass chipClass)
{
switch(chipClass) {
case R100:
return "R100";
case R200:
return "R200";
case R300:
return "R300";
case R400:
return "R400";
case R500:
return "R500";
case R600:
return "R600";
case R700:
return "R700";
case Evergreen:
return "EVERGREEN";
case NorthernIslands:
return "NI";
case NV10:
return "NV10";
case NV20:
return "NV20";
case NV30:
return "NV30";
case NV40:
return "NV40/G70";
case G80:
return "G80/G90";
case GF100:
return "GF100";
case I8XX:
return "i830/i835";
case I915:
return "i915/i945";
case I965:
return "i965";
case SandyBridge:
return "SandyBridge";
default:
return "Unknown";
}
}
// -------
GLPlatform::GLPlatform()
: m_driver(Driver_Unknown),
m_chipClass(UnknownChipClass),
m_mesaVersion(0),
m_galliumVersion(0),
m_looseBinding(false),
m_directRendering(false),
m_supportsGLSL(false),
m_limitedGLSL(false)
{
}
GLPlatform::~GLPlatform()
{
}
void GLPlatform::detect()
{
m_vendor = (const char*)glGetString(GL_VENDOR);
m_renderer = (const char*)glGetString(GL_RENDERER);
m_version = (const char*)glGetString(GL_VERSION);
const QByteArray extensions = (const char*)glGetString(GL_EXTENSIONS);
m_extensions = QSet<QByteArray>::fromList(extensions.split(' '));
// 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);
}
// Parse the Mesa version
const int mesaIndex = versionTokens.indexOf("Mesa");
if (mesaIndex != -1) {
const QByteArray version = versionTokens.at(mesaIndex + 1);
m_mesaVersion = parseVersionString(version);
}
#ifdef KWIN_HAVE_OPENGLES
m_directRendering = true;
m_supportsGLSL = true;
m_textureNPOT = true;
#else
GLXContext ctx = glXGetCurrentContext();
m_directRendering = glXIsDirect(display(), ctx);
m_supportsGLSL = m_extensions.contains("GL_ARB_shading_language_100") &&
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";
// 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(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(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("BARTS") ||
m_renderer.contains("TURKS") ||
m_renderer.contains("CAICOS"))) {
m_chipClass = detectRadeonClass(m_chipset);
m_driver = Driver_R600G;
}
// Nouveau
else if (m_vendor == "nouveau") {
m_chipClass = detectNVidiaClass(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;
}
}
// Properietary drivers
// ====================================================
else if (m_vendor == "ATI Technologies Inc.") {
m_chipClass = detectRadeonClass(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(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;
}
// 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 (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_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;
}
// Loose binding is broken with Gallium drivers in Mesa 7.10
if (isGalliumDriver() && mesaVersion() >= kVersionNumber(7, 10))
m_looseBinding = false;
if (isSoftwareEmulation()) {
// Software emulation does not provide GLSL
m_limitedGLSL = m_supportsGLSL = false;
}
}
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("OpenGL vendor string:", m_vendor);
print("OpenGL renderer string:", m_renderer);
print("OpenGL version string:", m_version);
if (m_supportsGLSL)
print("OpenGL shading language version string:", m_glsl_version);
print("Driver:", driverToString(m_driver));
if (!isMesaDriver())
print("Driver version:", versionToString(m_driverVersion));
print("GPU class:", chipClassToString(m_chipClass));
print("OpenGL version:", versionToString(m_glVersion));
if (m_supportsGLSL)
print("GLSL version:", versionToString(m_glslVersion));
if (isMesaDriver())
print("Mesa version:", versionToString(mesaVersion()));
//if (galliumVersion() > 0)
// print("Gallium version:", versionToString(m_galliumVersion));
if (serverVersion() > 0)
print("X server version:", versionToString(m_serverVersion));
if (kernelVersion() > 0)
print("Linux kernel version:", versionToString(m_kernelVersion));
print("Direct rendering:", m_directRendering ? "yes" : "no");
print("Requires strict binding:", !m_looseBinding ? "yes" : "no");
print("GLSL shaders:", m_supportsGLSL ? (m_limitedGLSL ? "limited" : "yes") : "no");
print("Texture NPOT support:", m_textureNPOT ? (m_limitedNPOT ? "limited" : "yes") : "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::isSoftwareEmulation() const
{
return m_driver == Driver_Softpipe || m_driver == Driver_Swrast || m_driver == Driver_Llvmpipe;
}
} // namespace KWin
#endif // KWIN_HAVE_OPENGL
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