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kwin/libkwineffects/kwinglplatform.cpp

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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>
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("HEMLOCK") ||
chipset.contains("PALM"))
return Evergreen;
if (chipset.contains("SUMO") ||
chipset.contains("SUMO2") ||
chipset.contains("BARTS") ||
chipset.contains("TURKS") ||
chipset.contains("CAICOS") ||
chipset.contains("CAYMAN"))
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"))
return I965;
// GL 3.1, CL 1.1, DX 10.1
if (chipset.contains("Sandybridge")) {
return SandyBridge;
}
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) + QChar('.') + QString::number(minor);
if (patch != 0)
string += QChar('.') + QString::number(patch);
return string;
}
QString GLPlatform::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";
}
}
QString GLPlatform::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("SUMO") ||
m_renderer.contains("SUMO2") ||
m_renderer.contains("BARTS") ||
m_renderer.contains("TURKS") ||
m_renderer.contains("CAICOS") ||
m_renderer.contains("CAYMAN"))) {
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;
}
else if (m_renderer == "Software Rasterizer") {
m_driver = Driver_Swrast;
}
// 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;
}
#ifdef KWIN_HAVE_OPENGLES
if (isMesaDriver()) {
// 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;
}
#endif
// Loose binding is broken with Gallium drivers in Mesa 7.10
if (isGalliumDriver() && mesaVersion() == kVersionNumber(7, 10, 0))
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;
}
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;
}
} // namespace KWin