kwin/libkwineffects/kwinglplatform.h
Casian Andrei 01adbe6dc5 Implement color correction (per output)
Add an option to kcmcompositing in the 'Advanced' tab, to enable or
disable color correction. It is specified that it's experimental and it
needs Kolor Manager.

Before painting for a particular screen, ColorCorrection::setupForOutput
should be called.

A screen property is added for WindowPaintData.

In kwinglutils, The fragment shaders are intercepted before being
compiled and they get a couple of lines of code inserted in order to do
the color correction. This happens only when color correction is enabled, of
course.

For D-Bus communication with KolorServer, everything is async.

The implementation basically manages a set of color lookup tables for
different outputs and for different window regions. These are taken via
D-Bus. Each lookup table has around 700 KB.

This commit reintroduces the changes from the former merge with the
"color2" branch. In this form, it can be easily reverted.

REVIEW: 106141
2012-11-13 22:47:09 +02:00

375 lines
10 KiB
C++

/********************************************************************
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/>.
*********************************************************************/
#ifndef KWIN_GLPLATFORM_H
#define KWIN_GLPLATFORM_H
#include <kwinglobals.h>
#include <kwinglutils_funcs.h>
#include <QSet>
namespace KWin
{
inline qint64 kVersionNumber(qint64 major, qint64 minor, qint64 patch = 0)
{
return ((major & 0xffff) << 32) | ((minor & 0xffff) << 16) | (patch & 0xffff);
}
enum GLFeature {
/**
* Set when a texture bound to a pixmap uses the same storage as the pixmap,
* and thus doesn't need to be rebound when the contents of the pixmap
* has changed.
*/
LooseBinding,
/**
* Set if the driver supports the following extensions:
* - GL_ARB_shader_objects
* - GL_ARB_fragment_shader
* - GL_ARB_vertex_shader
* - GL_ARB_shading_language_100
*/
GLSL,
/**
* If set, assume the following:
* - No flow control or branches
* - No loops, unless the loops have a fixed iteration count and can be unrolled
* - No functions, unless they can be inlined
* - No indirect indexing of arrays
* - No support for gl_ClipVertex or gl_FrontFacing
* - No texture fetches in vertex shaders
* - Max 32 texture fetches in fragment shaders
* - Max 4 texture indirections
*/
LimitedGLSL,
/**
* Set when the driver supports GL_ARB_texture_non_power_of_two.
*/
TextureNPOT,
/**
* If set, the driver supports GL_ARB_texture_non_power_of_two with the
* GL_ARB_texture_rectangle limitations.
*
* This means no support for mipmap filters, and that only the following
* wrap modes are supported:
* - GL_CLAMP
* - GL_CLAMP_TO_EDGE
* - GL_CLAMP_TO_BORDER
*/
LimitedNPOT
};
enum Driver {
Driver_R100, // Technically "Radeon"
Driver_R200,
Driver_R300C,
Driver_R300G,
Driver_R600C,
Driver_R600G,
Driver_Nouveau,
Driver_Intel,
Driver_NVidia,
Driver_Catalyst,
Driver_Swrast,
Driver_Softpipe,
Driver_Llvmpipe,
Driver_VirtualBox,
Driver_VMware,
Driver_Unknown
};
enum ChipClass {
// Radeon
R100 = 0, // GL1.3 DX7 2000
R200, // GL1.4 DX8.1 SM 1.4 2001
R300, // GL2.0 DX9 SM 2.0 2002
R400, // GL2.0 DX9b SM 2.0b 2004
R500, // GL2.0 DX9c SM 3.0 2005
R600, // GL3.3 DX10 SM 4.0 2006
R700, // GL3.3 DX10.1 SM 4.1 2008
Evergreen, // GL4.0 CL1.0 DX11 SM 5.0 2009
NorthernIslands, // GL4.0 CL1.1 DX11 SM 5.0 2010
UnknownRadeon = 999,
// NVIDIA
NV10 = 1000, // GL1.2 DX7 1999
NV20, // GL1.3 DX8 SM 1.1 2001
NV30, // GL1.5 DX9a SM 2.0 2003
NV40, // GL2.1 DX9c SM 3.0 2004
G80, // GL3.3 DX10 SM 4.0 2006
GF100, // GL4.1 CL1.1 DX11 SM 5.0 2010
UnknownNVidia = 1999,
// Intel
I8XX = 2000, // GL1.3 DX7 2001
I915, // GL1.4/1.5 DX9/DX9c SM 2.0 2004
I965, // GL2.0/2.1 DX9/DX10 SM 3.0/4.0 2006
SandyBridge, // GL3.1 CL1.1 DX10.1 SM 4.0 2010
IvyBridge, // GL4.0 CL1.1 DX11 SM 5.0 2012
Haswell, // GL4.0 CL1.2 DX11.1 SM 5.0 2013
UnknownIntel = 2999,
UnknownChipClass = 99999
};
class KWIN_EXPORT GLPlatform
{
public:
~GLPlatform();
/**
* Runs the detection code using the current OpenGL context.
*/
void detect(OpenGLPlatformInterface platformInterface);
/**
* Prints the results of the detection code.
*/
void printResults() const;
/**
* Returns a pointer to the GLPlatform instance.
*/
static GLPlatform *instance();
/**
* Returns true if the driver support the given feature, and false otherwise.
*/
bool supports(GLFeature feature) const;
/**
* Returns the OpenGL version.
*/
qint64 glVersion() const;
/**
* Returns the GLSL version if the driver supports GLSL, and 0 otherwise.
*/
qint64 glslVersion() const;
/**
* Returns the Mesa version if the driver is a Mesa driver, and 0 otherwise.
*/
qint64 mesaVersion() const;
/**
* Returns the Gallium version if the driver is a Gallium driver, and 0 otherwise.
*/
qint64 galliumVersion() const;
/**
* Returns the X server version.
*
* Note that the version number changed from 7.2 to 1.3 in the first release
* following the doupling of the X server from the katamari.
*
* For non X.org servers, this method returns 0.
*/
qint64 serverVersion() const;
/**
* Returns the Linux kernel version.
*
* If the kernel is not a Linux kernel, this method returns 0.
*/
qint64 kernelVersion() const;
/**
* Returns the driver version.
*
* For Mesa drivers, this is the same as the Mesa version number.
*/
qint64 driverVersion() const;
/**
* Returns the driver.
*/
Driver driver() const;
/**
* Returns the chip class.
*/
ChipClass chipClass() const;
/**
* Returns true if the driver is a Mesa driver, and false otherwise.
*/
bool isMesaDriver() const;
/**
* Returns true if the driver is a Gallium driver, and false otherwise.
*/
bool isGalliumDriver() const;
/**
* Returns true if the GPU is a Radeon GPU, and false otherwise.
*/
bool isRadeon() const;
/**
* Returns true if the GPU is an NVIDIA GPU, and false otherwise.
*/
bool isNvidia() const;
/**
* Returns true if the GPU is an Intel GPU, and false otherwise.
*/
bool isIntel() const;
/**
* @returns @c true if the "GPU" is a VirtualBox GPU, and @c false otherwise.
* @since 4.10
**/
bool isVirtualBox() const;
/**
* @returns @c true if the "GPU" is a VMWare GPU, and @c false otherwise.
* @since 4.10
**/
bool isVMware() const;
/**
* @returns @c true if OpenGL is emulated in software.
* @since 4.7
**/
bool isSoftwareEmulation() const;
/**
* @returns @c true if the driver is known to be from a virtual machine.
* @since 4.10
**/
bool isVirtualMachine() const;
/**
* @returns the GL_VERSION string as provided by the driver.
* @since 4.9
**/
const QByteArray &glVersionString() const;
/**
* @returns the GL_RENDERER string as provided by the driver.
* @since 4.9
**/
const QByteArray &glRendererString() const;
/**
* @returns the GL_VENDOR string as provided by the driver.
* @since 4.9
**/
const QByteArray &glVendorString() const;
/**
* @returns the GL_SHADING_LANGUAGE_VERSION string as provided by the driver.
* If the driver does not support the OpenGL Shading Language a null bytearray is returned.
* @since 4.9
**/
const QByteArray &glShadingLanguageVersionString() const;
/**
* @returns Whether a direct rendering OpenGL context is used.
* @since 4.9
**/
bool isDirectRendering() const;
/**
* @returns Whether the driver supports loose texture binding.
* @since 4.9
**/
bool isLooseBinding() const;
/**
* @returns Whether OpenGL ES is used
*/
bool isGLES() const;
/**
* @returns The CompositingType recommended by the driver.
* @since 4.10
**/
CompositingType recommendedCompositor() const;
/**
* @returns a human readable form of the @p version.
* @since 4.9
* @see glVersion
* @see glslVersion
* @see driverVersion
* @see mesaVersion
* @see galliumVersion
* @see kernelVersion
* @see serverVersion
**/
static QString versionToString(qint64 version);
/**
* @returns a human readable form for the @p driver.
* @since 4.9
* @see driver
**/
static QString driverToString(Driver driver);
/**
* @returns a human readable form for the @p chipClass.
* @since 4.9
* @see chipClass
**/
static QString chipClassToString(ChipClass chipClass);
private:
GLPlatform();
private:
QByteArray m_renderer;
QByteArray m_vendor;
QByteArray m_version;
QByteArray m_glsl_version;
QByteArray m_chipset;
QSet<QByteArray> m_extensions;
Driver m_driver;
ChipClass m_chipClass;
CompositingType m_recommendedCompositor;
qint64 m_glVersion;
qint64 m_glslVersion;
qint64 m_mesaVersion;
qint64 m_driverVersion;
qint64 m_galliumVersion;
qint64 m_serverVersion;
qint64 m_kernelVersion;
bool m_looseBinding: 1;
bool m_directRendering: 1;
bool m_supportsGLSL: 1;
bool m_limitedGLSL: 1;
bool m_textureNPOT: 1;
bool m_limitedNPOT: 1;
bool m_virtualMachine: 1;
static GLPlatform *s_platform;
};
inline GLPlatform *GLPlatform::instance()
{
if (!s_platform)
s_platform = new GLPlatform;
return s_platform;
}
} // namespace KWin
#endif // KWIN_GLPLATFORM_H