diff --git a/libkwineffects/kwinglutils.cpp b/libkwineffects/kwinglutils.cpp index eead483e9..2ddbd2bdc 100644 --- a/libkwineffects/kwinglutils.cpp +++ b/libkwineffects/kwinglutils.cpp @@ -1,2321 +1,2306 @@ /******************************************************************** KWin - the KDE window manager This file is part of the KDE project. Copyright (C) 2006-2007 Rivo Laks Copyright (C) 2010, 2011 Martin Gräßlin 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 . *********************************************************************/ #include "kwinglutils.h" // need to call GLTexturePrivate::initStatic() #include "kwingltexture_p.h" #include "kwinglcolorcorrection.h" #include "kwineffects.h" #include "kwinglplatform.h" #include "logging_p.h" #include #include #include #include #include #include #include #include #include #include #include #include -#if HAVE_EPOXY_GLX -#include -#endif - #define DEBUG_GLRENDERTARGET 0 #define MAKE_GL_VERSION(major, minor, release) ( ((major) << 16) | ((minor) << 8) | (release) ) #ifdef __GNUC__ # define likely(x) __builtin_expect(!!(x), 1) # define unlikely(x) __builtin_expect(!!(x), 0) #else # define likely(x) (x) # define unlikely(x) (x) #endif namespace KWin { // Variables // EGL version, use MAKE_GL_VERSION() macro for comparing with a specific version static int eglVersion; // List of all supported GL, EGL and GLX extensions static QList glExtensions; -static QList s_glxExtensions; static QList s_eglExtensions; int glTextureUnitsCount; // Functions -void initGLX() -{ -#if HAVE_EPOXY_GLX - // Get list of supported GLX extensions - const QByteArray string = (const char *) glXQueryExtensionsString(display(), QX11Info::appScreen()); - s_glxExtensions = string.split(' '); - glxResolveFunctions(); -#endif -} void initEGL() { EGLDisplay dpy = eglGetCurrentDisplay(); if (dpy == EGL_NO_DISPLAY) dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY); int major, minor; eglInitialize(dpy, &major, &minor); eglVersion = MAKE_GL_VERSION(major, minor, 0); const QByteArray string = eglQueryString(dpy, EGL_EXTENSIONS); s_eglExtensions = string.split(' '); eglResolveFunctions(); } void initGL(OpenGLPlatformInterface platformInterface) { // Get list of supported OpenGL extensions if (hasGLVersion(3, 0)) { int count; glGetIntegerv(GL_NUM_EXTENSIONS, &count); for (int i = 0; i < count; i++) { const QByteArray name = (const char *) glGetStringi(GL_EXTENSIONS, i); glExtensions << name; } } else glExtensions = QByteArray((const char*)glGetString(GL_EXTENSIONS)).split(' '); // handle OpenGL extensions functions glResolveFunctions(platformInterface); GLTexturePrivate::initStatic(); GLRenderTarget::initStatic(); GLVertexBuffer::initStatic(); } void cleanupGL() { ShaderManager::cleanup(); GLTexturePrivate::cleanup(); GLRenderTarget::cleanup(); GLVertexBuffer::cleanup(); GLPlatform::cleanup(); glExtensions.clear(); - s_glxExtensions.clear(); s_eglExtensions.clear(); eglVersion = 0; glTextureUnitsCount = 0; } bool hasGLVersion(int major, int minor, int release) { return GLPlatform::instance()->glVersion() >= kVersionNumber(major, minor, release); } bool hasEGLVersion(int major, int minor, int release) { return eglVersion >= MAKE_GL_VERSION(major, minor, release); } bool hasGLExtension(const QByteArray &extension) { - return glExtensions.contains(extension) || s_glxExtensions.contains(extension) || s_eglExtensions.contains(extension); + return glExtensions.contains(extension) || s_eglExtensions.contains(extension); } QList eglExtensions() { return s_eglExtensions; } QList openGLExtensions() { return glExtensions; } static QString formatGLError(GLenum err) { switch(err) { case GL_NO_ERROR: return QStringLiteral("GL_NO_ERROR"); case GL_INVALID_ENUM: return QStringLiteral("GL_INVALID_ENUM"); case GL_INVALID_VALUE: return QStringLiteral("GL_INVALID_VALUE"); case GL_INVALID_OPERATION: return QStringLiteral("GL_INVALID_OPERATION"); case GL_STACK_OVERFLOW: return QStringLiteral("GL_STACK_OVERFLOW"); case GL_STACK_UNDERFLOW: return QStringLiteral("GL_STACK_UNDERFLOW"); case GL_OUT_OF_MEMORY: return QStringLiteral("GL_OUT_OF_MEMORY"); default: return QLatin1String("0x") + QString::number(err, 16); } } bool checkGLError(const char* txt) { GLenum err = glGetError(); bool hasError = false; while (err != GL_NO_ERROR) { qCWarning(LIBKWINGLUTILS) << "GL error (" << txt << "): " << formatGLError(err); hasError = true; err = glGetError(); } return hasError; } // TODO: Drop for Plasma 6, no longer needed after OpenGL 2.0 int nearestPowerOfTwo(int x) { unsigned y = static_cast(x); // From Hank Warren's "Hacker's Delight", clp2() method. // Works for up to 32-bit integers. y = y - 1; y = y | (y >> 1); y = y | (y >> 2); y = y | (y >> 4); y = y | (y >> 8); y = y | (y >> 16); return static_cast(y + 1); } //**************************************** // GLShader //**************************************** bool GLShader::sColorCorrect = false; GLShader::GLShader(unsigned int flags) : mValid(false) , mLocationsResolved(false) , mExplicitLinking(flags & ExplicitLinking) { mProgram = glCreateProgram(); } GLShader::GLShader(const QString& vertexfile, const QString& fragmentfile, unsigned int flags) : mValid(false) , mLocationsResolved(false) , mExplicitLinking(flags & ExplicitLinking) { mProgram = glCreateProgram(); loadFromFiles(vertexfile, fragmentfile); } GLShader::~GLShader() { if (mProgram) { glDeleteProgram(mProgram); } } bool GLShader::loadFromFiles(const QString &vertexFile, const QString &fragmentFile) { QFile vf(vertexFile); if (!vf.open(QIODevice::ReadOnly)) { qCCritical(LIBKWINGLUTILS) << "Couldn't open" << vertexFile << "for reading!"; return false; } const QByteArray vertexSource = vf.readAll(); QFile ff(fragmentFile); if (!ff.open(QIODevice::ReadOnly)) { qCCritical(LIBKWINGLUTILS) << "Couldn't open" << fragmentFile << "for reading!"; return false; } const QByteArray fragmentSource = ff.readAll(); return load(vertexSource, fragmentSource); } bool GLShader::link() { // Be optimistic mValid = true; glLinkProgram(mProgram); // Get the program info log int maxLength, length; glGetProgramiv(mProgram, GL_INFO_LOG_LENGTH, &maxLength); QByteArray log(maxLength, 0); glGetProgramInfoLog(mProgram, maxLength, &length, log.data()); // Make sure the program linked successfully int status; glGetProgramiv(mProgram, GL_LINK_STATUS, &status); if (status == 0) { qCCritical(LIBKWINGLUTILS) << "Failed to link shader:" << endl << log; mValid = false; } else if (length > 0) { qCDebug(LIBKWINGLUTILS) << "Shader link log:" << log; } return mValid; } const QByteArray GLShader::prepareSource(GLenum shaderType, const QByteArray &source) const { // Prepare the source code QByteArray ba; if (GLPlatform::instance()->isGLES() && GLPlatform::instance()->glslVersion() < kVersionNumber(3, 0)) { ba.append("precision highp float;\n"); } if (ShaderManager::instance()->isShaderDebug()) { ba.append("#define KWIN_SHADER_DEBUG 1\n"); } ba.append(source); if (GLPlatform::instance()->isGLES() && GLPlatform::instance()->glslVersion() >= kVersionNumber(3, 0)) { ba.replace("#version 140", "#version 300 es\n\nprecision highp float;\n"); } // Inject color correction code for fragment shaders, if possible if (shaderType == GL_FRAGMENT_SHADER && sColorCorrect) ba = ColorCorrection::prepareFragmentShader(ba); return ba; } bool GLShader::compile(GLuint program, GLenum shaderType, const QByteArray &source) const { GLuint shader = glCreateShader(shaderType); QByteArray preparedSource = prepareSource(shaderType, source); const char* src = preparedSource.constData(); glShaderSource(shader, 1, &src, nullptr); // Compile the shader glCompileShader(shader); // Get the shader info log int maxLength, length; glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &maxLength); QByteArray log(maxLength, 0); glGetShaderInfoLog(shader, maxLength, &length, log.data()); // Check the status int status; glGetShaderiv(shader, GL_COMPILE_STATUS, &status); if (status == 0) { const char *typeName = (shaderType == GL_VERTEX_SHADER ? "vertex" : "fragment"); qCCritical(LIBKWINGLUTILS) << "Failed to compile" << typeName << "shader:" << endl << log; } else if (length > 0) qCDebug(LIBKWINGLUTILS) << "Shader compile log:" << log; if (status != 0) glAttachShader(program, shader); glDeleteShader(shader); return status != 0; } bool GLShader::load(const QByteArray &vertexSource, const QByteArray &fragmentSource) { // Make sure shaders are actually supported if (!(GLPlatform::instance()->supports(GLSL) && // we lack shader branching for Texture2DRectangle everywhere - and it's probably not worth it GLPlatform::instance()->supports(TextureNPOT))) { qCCritical(LIBKWINGLUTILS) << "Shaders are not supported"; return false; } mValid = false; // Compile the vertex shader if (!vertexSource.isEmpty()) { bool success = compile(mProgram, GL_VERTEX_SHADER, vertexSource); if (!success) return false; } // Compile the fragment shader if (!fragmentSource.isEmpty()) { bool success = compile(mProgram, GL_FRAGMENT_SHADER, fragmentSource); if (!success) return false; } if (mExplicitLinking) return true; // link() sets mValid return link(); } void GLShader::bindAttributeLocation(const char *name, int index) { glBindAttribLocation(mProgram, index, name); } void GLShader::bindFragDataLocation(const char *name, int index) { if (!GLPlatform::instance()->isGLES() && (hasGLVersion(3, 0) || hasGLExtension(QByteArrayLiteral("GL_EXT_gpu_shader4")))) glBindFragDataLocation(mProgram, index, name); } void GLShader::bind() { glUseProgram(mProgram); } void GLShader::unbind() { glUseProgram(0); } void GLShader::resolveLocations() { if (mLocationsResolved) return; mMatrixLocation[TextureMatrix] = uniformLocation("textureMatrix"); mMatrixLocation[ProjectionMatrix] = uniformLocation("projection"); mMatrixLocation[ModelViewMatrix] = uniformLocation("modelview"); mMatrixLocation[ModelViewProjectionMatrix] = uniformLocation("modelViewProjectionMatrix"); mMatrixLocation[WindowTransformation] = uniformLocation("windowTransformation"); mMatrixLocation[ScreenTransformation] = uniformLocation("screenTransformation"); mVec2Location[Offset] = uniformLocation("offset"); mVec4Location[ModulationConstant] = uniformLocation("modulation"); mFloatLocation[Saturation] = uniformLocation("saturation"); mIntLocation[ColorCorrectionLookupTextureUnit] = uniformLocation("u_ccLookupTexture"); mColorLocation[Color] = uniformLocation("geometryColor"); mLocationsResolved = true; } int GLShader::uniformLocation(const char *name) { const int location = glGetUniformLocation(mProgram, name); return location; } bool GLShader::setUniform(GLShader::MatrixUniform uniform, const QMatrix4x4 &matrix) { resolveLocations(); return setUniform(mMatrixLocation[uniform], matrix); } bool GLShader::setUniform(GLShader::Vec2Uniform uniform, const QVector2D &value) { resolveLocations(); return setUniform(mVec2Location[uniform], value); } bool GLShader::setUniform(GLShader::Vec4Uniform uniform, const QVector4D &value) { resolveLocations(); return setUniform(mVec4Location[uniform], value); } bool GLShader::setUniform(GLShader::FloatUniform uniform, float value) { resolveLocations(); return setUniform(mFloatLocation[uniform], value); } bool GLShader::setUniform(GLShader::IntUniform uniform, int value) { resolveLocations(); return setUniform(mIntLocation[uniform], value); } bool GLShader::setUniform(GLShader::ColorUniform uniform, const QVector4D &value) { resolveLocations(); return setUniform(mColorLocation[uniform], value); } bool GLShader::setUniform(GLShader::ColorUniform uniform, const QColor &value) { resolveLocations(); return setUniform(mColorLocation[uniform], value); } bool GLShader::setUniform(const char *name, float value) { const int location = uniformLocation(name); return setUniform(location, value); } bool GLShader::setUniform(const char *name, int value) { const int location = uniformLocation(name); return setUniform(location, value); } bool GLShader::setUniform(const char *name, const QVector2D& value) { const int location = uniformLocation(name); return setUniform(location, value); } bool GLShader::setUniform(const char *name, const QVector3D& value) { const int location = uniformLocation(name); return setUniform(location, value); } bool GLShader::setUniform(const char *name, const QVector4D& value) { const int location = uniformLocation(name); return setUniform(location, value); } bool GLShader::setUniform(const char *name, const QMatrix4x4& value) { const int location = uniformLocation(name); return setUniform(location, value); } bool GLShader::setUniform(const char *name, const QColor& color) { const int location = uniformLocation(name); return setUniform(location, color); } bool GLShader::setUniform(int location, float value) { if (location >= 0) { glUniform1f(location, value); } return (location >= 0); } bool GLShader::setUniform(int location, int value) { if (location >= 0) { glUniform1i(location, value); } return (location >= 0); } bool GLShader::setUniform(int location, const QVector2D &value) { if (location >= 0) { glUniform2fv(location, 1, (const GLfloat*)&value); } return (location >= 0); } bool GLShader::setUniform(int location, const QVector3D &value) { if (location >= 0) { glUniform3fv(location, 1, (const GLfloat*)&value); } return (location >= 0); } bool GLShader::setUniform(int location, const QVector4D &value) { if (location >= 0) { glUniform4fv(location, 1, (const GLfloat*)&value); } return (location >= 0); } bool GLShader::setUniform(int location, const QMatrix4x4 &value) { if (location >= 0) { GLfloat m[16]; const auto *data = value.constData(); // i is column, j is row for m for (int i = 0; i < 16; ++i) { m[i] = data[i]; } glUniformMatrix4fv(location, 1, GL_FALSE, m); } return (location >= 0); } bool GLShader::setUniform(int location, const QColor &color) { if (location >= 0) { glUniform4f(location, color.redF(), color.greenF(), color.blueF(), color.alphaF()); } return (location >= 0); } int GLShader::attributeLocation(const char* name) { int location = glGetAttribLocation(mProgram, name); return location; } bool GLShader::setAttribute(const char* name, float value) { int location = attributeLocation(name); if (location >= 0) { glVertexAttrib1f(location, value); } return (location >= 0); } QMatrix4x4 GLShader::getUniformMatrix4x4(const char* name) { int location = uniformLocation(name); if (location >= 0) { GLfloat m[16]; glGetnUniformfv(mProgram, location, sizeof(m), m); QMatrix4x4 matrix(m[0], m[4], m[8], m[12], m[1], m[5], m[9], m[13], m[2], m[6], m[10], m[14], m[3], m[7], m[11], m[15]); matrix.optimize(); return matrix; } else { return QMatrix4x4(); } } //**************************************** // ShaderManager //**************************************** ShaderManager *ShaderManager::s_shaderManager = nullptr; ShaderManager *ShaderManager::instance() { if (!s_shaderManager) { s_shaderManager = new ShaderManager(); } return s_shaderManager; } void ShaderManager::cleanup() { delete s_shaderManager; s_shaderManager = nullptr; } ShaderManager::ShaderManager() { m_debug = qstrcmp(qgetenv("KWIN_GL_DEBUG"), "1") == 0; const qint64 coreVersionNumber = GLPlatform::instance()->isGLES() ? kVersionNumber(3, 0) : kVersionNumber(1, 40); if (GLPlatform::instance()->glslVersion() >= coreVersionNumber) { m_resourcePath = QStringLiteral(":/effect-shaders-1.40/"); } else { m_resourcePath = QStringLiteral(":/effect-shaders-1.10/"); } } ShaderManager::~ShaderManager() { while (!m_boundShaders.isEmpty()) { popShader(); } qDeleteAll(m_shaderHash); m_shaderHash.clear(); } static bool fuzzyCompare(const QVector4D &lhs, const QVector4D &rhs) { const float epsilon = 1.0f / 255.0f; return lhs[0] >= rhs[0] - epsilon && lhs[0] <= rhs[0] + epsilon && lhs[1] >= rhs[1] - epsilon && lhs[1] <= rhs[1] + epsilon && lhs[2] >= rhs[2] - epsilon && lhs[2] <= rhs[2] + epsilon && lhs[3] >= rhs[3] - epsilon && lhs[3] <= rhs[3] + epsilon; } static bool checkPixel(int x, int y, const QVector4D &expected, const char *file, int line) { uint8_t data[4]; glReadnPixels(x, y, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, 4, data); const QVector4D pixel{data[0] / 255.f, data[1] / 255.f, data[2] / 255.f, data[3] / 255.f}; if (fuzzyCompare(pixel, expected)) return true; QMessageLogger(file, line, nullptr).warning() << "Pixel was" << pixel << "expected" << expected; return false; } #define CHECK_PIXEL(x, y, expected) \ checkPixel(x, y, expected, __FILE__, __LINE__) static QVector4D adjustSaturation(const QVector4D &color, float saturation) { const float gray = QVector3D::dotProduct(color.toVector3D(), {0.2126, 0.7152, 0.0722}); return QVector4D{gray, gray, gray, color.w()} * (1.0f - saturation) + color * saturation; } bool ShaderManager::selfTest() { bool pass = true; if (!GLRenderTarget::supported()) { qCWarning(LIBKWINGLUTILS) << "Framebuffer objects not supported - skipping shader tests"; return true; } if (GLPlatform::instance()->isNvidia() && GLPlatform::instance()->glRendererString().contains("Quadro")) { qCWarning(LIBKWINGLUTILS) << "Skipping self test as it is reported to return false positive results on Quadro hardware"; return true; } // Create the source texture QImage image(2, 2, QImage::Format_ARGB32_Premultiplied); image.setPixel(0, 0, 0xffff0000); // Red image.setPixel(1, 0, 0xff00ff00); // Green image.setPixel(0, 1, 0xff0000ff); // Blue image.setPixel(1, 1, 0xffffffff); // White GLTexture src(image); src.setFilter(GL_NEAREST); // Create the render target GLTexture dst(GL_RGBA8, 32, 32); GLRenderTarget fbo(dst); GLRenderTarget::pushRenderTarget(&fbo); // Set up the vertex buffer GLVertexBuffer *vbo = GLVertexBuffer::streamingBuffer(); const GLVertexAttrib attribs[] { { VA_Position, 2, GL_FLOAT, offsetof(GLVertex2D, position) }, { VA_TexCoord, 2, GL_FLOAT, offsetof(GLVertex2D, texcoord) }, }; vbo->setAttribLayout(attribs, 2, sizeof(GLVertex2D)); GLVertex2D *verts = (GLVertex2D*) vbo->map(6 * sizeof(GLVertex2D)); verts[0] = GLVertex2D{{0, 0}, {0, 0}}; // Top left verts[1] = GLVertex2D{{0, 32}, {0, 1}}; // Bottom left verts[2] = GLVertex2D{{32, 0}, {1, 0}}; // Top right verts[3] = GLVertex2D{{32, 0}, {1, 0}}; // Top right verts[4] = GLVertex2D{{0, 32}, {0, 1}}; // Bottom left verts[5] = GLVertex2D{{32, 32}, {1, 1}}; // Bottom right vbo->unmap(); vbo->bindArrays(); glViewport(0, 0, 32, 32); glClearColor(0, 0, 0, 0); // Set up the projection matrix QMatrix4x4 matrix; matrix.ortho(QRect(0, 0, 32, 32)); // Bind the source texture src.bind(); const QVector4D red {1.0f, 0.0f, 0.0f, 1.0f}; const QVector4D green {0.0f, 1.0f, 0.0f, 1.0f}; const QVector4D blue {0.0f, 0.0f, 1.0f, 1.0f}; const QVector4D white {1.0f, 1.0f, 1.0f, 1.0f}; // Note: To see the line number in error messages, set // QT_MESSAGE_PATTERN="%{message} (%{file}:%{line})" // Test solid color GLShader *shader = pushShader(ShaderTrait::UniformColor); if (shader->isValid()) { glClear(GL_COLOR_BUFFER_BIT); shader->setUniform(GLShader::ModelViewProjectionMatrix, matrix); shader->setUniform(GLShader::Color, green); vbo->draw(GL_TRIANGLES, 0, 6); pass = CHECK_PIXEL(8, 24, green) && pass; pass = CHECK_PIXEL(24, 24, green) && pass; pass = CHECK_PIXEL(8, 8, green) && pass; pass = CHECK_PIXEL(24, 8, green) && pass; } else { pass = false; } popShader(); // Test texture mapping shader = pushShader(ShaderTrait::MapTexture); if (shader->isValid()) { glClear(GL_COLOR_BUFFER_BIT); shader->setUniform(GLShader::ModelViewProjectionMatrix, matrix); vbo->draw(GL_TRIANGLES, 0, 6); pass = CHECK_PIXEL(8, 24, red) && pass; pass = CHECK_PIXEL(24, 24, green) && pass; pass = CHECK_PIXEL(8, 8, blue) && pass; pass = CHECK_PIXEL(24, 8, white) && pass; } else { pass = false; } popShader(); // Test saturation filter shader = pushShader(ShaderTrait::MapTexture | ShaderTrait::AdjustSaturation); if (shader->isValid()) { glClear(GL_COLOR_BUFFER_BIT); const float saturation = .3; shader->setUniform(GLShader::ModelViewProjectionMatrix, matrix); shader->setUniform(GLShader::Saturation, saturation); vbo->draw(GL_TRIANGLES, 0, 6); pass = CHECK_PIXEL(8, 24, adjustSaturation(red, saturation)) && pass; pass = CHECK_PIXEL(24, 24, adjustSaturation(green, saturation)) && pass; pass = CHECK_PIXEL(8, 8, adjustSaturation(blue, saturation)) && pass; pass = CHECK_PIXEL(24, 8, adjustSaturation(white, saturation)) && pass; } else { pass = false; } popShader(); // Test modulation filter shader = pushShader(ShaderTrait::MapTexture | ShaderTrait::Modulate); if (shader->isValid()) { glClear(GL_COLOR_BUFFER_BIT); const QVector4D modulation{.3f, .4f, .5f, .6f}; shader->setUniform(GLShader::ModelViewProjectionMatrix, matrix); shader->setUniform(GLShader::ModulationConstant, modulation); vbo->draw(GL_TRIANGLES, 0, 6); pass = CHECK_PIXEL(8, 24, red * modulation) && pass; pass = CHECK_PIXEL(24, 24, green * modulation) && pass; pass = CHECK_PIXEL(8, 8, blue * modulation) && pass; pass = CHECK_PIXEL(24, 8, white * modulation) && pass; } else { pass = false; } popShader(); // Test saturation + modulation shader = pushShader(ShaderTrait::MapTexture | ShaderTrait::AdjustSaturation | ShaderTrait::Modulate); if (shader->isValid()) { glClear(GL_COLOR_BUFFER_BIT); const QVector4D modulation{.3f, .4f, .5f, .6f}; const float saturation = .3; shader->setUniform(GLShader::ModelViewProjectionMatrix, matrix); shader->setUniform(GLShader::ModulationConstant, modulation); shader->setUniform(GLShader::Saturation, saturation); vbo->draw(GL_TRIANGLES, 0, 6); pass = CHECK_PIXEL(8, 24, adjustSaturation(red * modulation, saturation)) && pass; pass = CHECK_PIXEL(24, 24, adjustSaturation(green * modulation, saturation)) && pass; pass = CHECK_PIXEL(8, 8, adjustSaturation(blue * modulation, saturation)) && pass; pass = CHECK_PIXEL(24, 8, adjustSaturation(white * modulation, saturation)) && pass; } else { pass = false; } popShader(); vbo->unbindArrays(); GLRenderTarget::popRenderTarget(); return pass; } QByteArray ShaderManager::generateVertexSource(ShaderTraits traits) const { QByteArray source; QTextStream stream(&source); GLPlatform * const gl = GLPlatform::instance(); QByteArray attribute, varying; if (!gl->isGLES()) { const bool glsl_140 = gl->glslVersion() >= kVersionNumber(1, 40); attribute = glsl_140 ? QByteArrayLiteral("in") : QByteArrayLiteral("attribute"); varying = glsl_140 ? QByteArrayLiteral("out") : QByteArrayLiteral("varying"); if (glsl_140) stream << "#version 140\n\n"; } else { const bool glsl_es_300 = gl->glslVersion() >= kVersionNumber(3, 0); attribute = glsl_es_300 ? QByteArrayLiteral("in") : QByteArrayLiteral("attribute"); varying = glsl_es_300 ? QByteArrayLiteral("out") : QByteArrayLiteral("varying"); if (glsl_es_300) stream << "#version 300 es\n\n"; } stream << attribute << " vec4 position;\n"; if (traits & ShaderTrait::MapTexture) { stream << attribute << " vec4 texcoord;\n\n"; stream << varying << " vec2 texcoord0;\n\n"; } else stream << "\n"; stream << "uniform mat4 modelViewProjectionMatrix;\n\n"; stream << "void main()\n{\n"; if (traits & ShaderTrait::MapTexture) stream << " texcoord0 = texcoord.st;\n"; stream << " gl_Position = modelViewProjectionMatrix * position;\n"; stream << "}\n"; stream.flush(); return source; } QByteArray ShaderManager::generateFragmentSource(ShaderTraits traits) const { QByteArray source; QTextStream stream(&source); GLPlatform * const gl = GLPlatform::instance(); QByteArray varying, output, textureLookup; if (!gl->isGLES()) { const bool glsl_140 = gl->glslVersion() >= kVersionNumber(1, 40); if (glsl_140) stream << "#version 140\n\n"; varying = glsl_140 ? QByteArrayLiteral("in") : QByteArrayLiteral("varying"); textureLookup = glsl_140 ? QByteArrayLiteral("texture") : QByteArrayLiteral("texture2D"); output = glsl_140 ? QByteArrayLiteral("fragColor") : QByteArrayLiteral("gl_FragColor"); } else { const bool glsl_es_300 = GLPlatform::instance()->glslVersion() >= kVersionNumber(3, 0); if (glsl_es_300) stream << "#version 300 es\n\n"; // From the GLSL ES specification: // // "The fragment language has no default precision qualifier for floating point types." stream << "precision highp float;\n\n"; varying = glsl_es_300 ? QByteArrayLiteral("in") : QByteArrayLiteral("varying"); textureLookup = glsl_es_300 ? QByteArrayLiteral("texture") : QByteArrayLiteral("texture2D"); output = glsl_es_300 ? QByteArrayLiteral("fragColor") : QByteArrayLiteral("gl_FragColor"); } if (traits & ShaderTrait::MapTexture) { stream << "uniform sampler2D sampler;\n"; if (traits & ShaderTrait::Modulate) stream << "uniform vec4 modulation;\n"; if (traits & ShaderTrait::AdjustSaturation) stream << "uniform float saturation;\n"; stream << "\n" << varying << " vec2 texcoord0;\n"; } else if (traits & ShaderTrait::UniformColor) stream << "uniform vec4 geometryColor;\n"; if (output != QByteArrayLiteral("gl_FragColor")) stream << "\nout vec4 " << output << ";\n"; stream << "\nvoid main(void)\n{\n"; if (traits & ShaderTrait::MapTexture) { if (traits & (ShaderTrait::Modulate | ShaderTrait::AdjustSaturation)) { stream << " vec4 texel = " << textureLookup << "(sampler, texcoord0);\n"; if (traits & ShaderTrait::Modulate) stream << " texel *= modulation;\n"; if (traits & ShaderTrait::AdjustSaturation) stream << " texel.rgb = mix(vec3(dot(texel.rgb, vec3(0.2126, 0.7152, 0.0722))), texel.rgb, saturation);\n"; stream << " " << output << " = texel;\n"; } else { stream << " " << output << " = " << textureLookup << "(sampler, texcoord0);\n"; } } else if (traits & ShaderTrait::UniformColor) stream << " " << output << " = geometryColor;\n"; stream << "}"; stream.flush(); return source; } GLShader *ShaderManager::generateShader(ShaderTraits traits) { return generateCustomShader(traits); } GLShader *ShaderManager::generateCustomShader(ShaderTraits traits, const QByteArray &vertexSource, const QByteArray &fragmentSource) { const QByteArray vertex = vertexSource.isEmpty() ? generateVertexSource(traits) : vertexSource; const QByteArray fragment = fragmentSource.isEmpty() ? generateFragmentSource(traits) : fragmentSource; #if 0 qCDebug(LIBKWINGLUTILS) << "**************"; qCDebug(LIBKWINGLUTILS) << vertex; qCDebug(LIBKWINGLUTILS) << "**************"; qCDebug(LIBKWINGLUTILS) << fragment; qCDebug(LIBKWINGLUTILS) << "**************"; #endif GLShader *shader = new GLShader(GLShader::ExplicitLinking); shader->load(vertex, fragment); shader->bindAttributeLocation("position", VA_Position); shader->bindAttributeLocation("texcoord", VA_TexCoord); shader->bindFragDataLocation("fragColor", 0); shader->link(); return shader; } GLShader *ShaderManager::generateShaderFromResources(ShaderTraits traits, const QString &vertexFile, const QString &fragmentFile) { auto loadShaderFile = [this] (const QString &fileName) { QFile file(m_resourcePath + fileName); if (file.open(QIODevice::ReadOnly)) { return file.readAll(); } qCCritical(LIBKWINGLUTILS) << "Failed to read shader " << fileName; return QByteArray(); }; QByteArray vertexSource; QByteArray fragmentSource; if (!vertexFile.isEmpty()) { vertexSource = loadShaderFile(vertexFile); if (vertexSource.isEmpty()) { return new GLShader(); } } if (!fragmentFile.isEmpty()) { fragmentSource = loadShaderFile(fragmentFile); if (fragmentSource.isEmpty()) { return new GLShader(); } } return generateCustomShader(traits, vertexSource, fragmentSource); } GLShader *ShaderManager::shader(ShaderTraits traits) { GLShader *shader = m_shaderHash.value(traits); if (!shader) { shader = generateShader(traits); m_shaderHash.insert(traits, shader); } return shader; } GLShader *ShaderManager::getBoundShader() const { if (m_boundShaders.isEmpty()) { return nullptr; } else { return m_boundShaders.top(); } } bool ShaderManager::isShaderBound() const { return !m_boundShaders.isEmpty(); } bool ShaderManager::isShaderDebug() const { return m_debug; } GLShader *ShaderManager::pushShader(ShaderTraits traits) { GLShader *shader = this->shader(traits); pushShader(shader); return shader; } void ShaderManager::pushShader(GLShader *shader) { // only bind shader if it is not already bound if (shader != getBoundShader()) { shader->bind(); } m_boundShaders.push(shader); } void ShaderManager::popShader() { if (m_boundShaders.isEmpty()) { return; } GLShader *shader = m_boundShaders.pop(); if (m_boundShaders.isEmpty()) { // no more shader bound - unbind shader->unbind(); } else if (shader != m_boundShaders.top()) { // only rebind if a different shader is on top of stack m_boundShaders.top()->bind(); } } void ShaderManager::bindFragDataLocations(GLShader *shader) { shader->bindFragDataLocation("fragColor", 0); } void ShaderManager::bindAttributeLocations(GLShader *shader) const { shader->bindAttributeLocation("vertex", VA_Position); shader->bindAttributeLocation("texCoord", VA_TexCoord); } GLShader *ShaderManager::loadShaderFromCode(const QByteArray &vertexSource, const QByteArray &fragmentSource) { GLShader *shader = new GLShader(GLShader::ExplicitLinking); shader->load(vertexSource, fragmentSource); bindAttributeLocations(shader); bindFragDataLocations(shader); shader->link(); return shader; } /*** GLRenderTarget ***/ bool GLRenderTarget::sSupported = false; bool GLRenderTarget::s_blitSupported = false; QStack GLRenderTarget::s_renderTargets = QStack(); QSize GLRenderTarget::s_virtualScreenSize; QRect GLRenderTarget::s_virtualScreenGeometry; void GLRenderTarget::initStatic() { if (GLPlatform::instance()->isGLES()) { sSupported = true; s_blitSupported = hasGLVersion(3, 0); } else { sSupported = hasGLVersion(3, 0) || hasGLExtension(QByteArrayLiteral("GL_ARB_framebuffer_object")) || hasGLExtension(QByteArrayLiteral("GL_EXT_framebuffer_object")); s_blitSupported = hasGLVersion(3, 0) || hasGLExtension(QByteArrayLiteral("GL_ARB_framebuffer_object")) || hasGLExtension(QByteArrayLiteral("GL_EXT_framebuffer_blit")); } } void GLRenderTarget::cleanup() { Q_ASSERT(s_renderTargets.isEmpty()); sSupported = false; s_blitSupported = false; } bool GLRenderTarget::isRenderTargetBound() { return !s_renderTargets.isEmpty(); } bool GLRenderTarget::blitSupported() { return s_blitSupported; } void GLRenderTarget::pushRenderTarget(GLRenderTarget* target) { target->enable(); s_renderTargets.push(target); } GLRenderTarget* GLRenderTarget::popRenderTarget() { GLRenderTarget* ret = s_renderTargets.pop(); ret->disable(); if (!s_renderTargets.isEmpty()) { s_renderTargets.top()->enable(); } else { glViewport (-s_virtualScreenGeometry.x(), s_virtualScreenGeometry.height() - s_virtualScreenSize.height() - s_virtualScreenGeometry.y(), s_virtualScreenSize.width(), s_virtualScreenSize.height()); } return ret; } GLRenderTarget::GLRenderTarget(const GLTexture& color) { // Reset variables mValid = false; mTexture = color; // Make sure FBO is supported if (sSupported && !mTexture.isNull()) { initFBO(); } else qCCritical(LIBKWINGLUTILS) << "Render targets aren't supported!"; } GLRenderTarget::~GLRenderTarget() { if (mValid) { glDeleteFramebuffers(1, &mFramebuffer); } } bool GLRenderTarget::enable() { if (!valid()) { qCCritical(LIBKWINGLUTILS) << "Can't enable invalid render target!"; return false; } glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer); glViewport(0, 0, mTexture.width(), mTexture.height()); mTexture.setDirty(); return true; } bool GLRenderTarget::disable() { if (!valid()) { qCCritical(LIBKWINGLUTILS) << "Can't disable invalid render target!"; return false; } glBindFramebuffer(GL_FRAMEBUFFER, 0); mTexture.setDirty(); return true; } static QString formatFramebufferStatus(GLenum status) { switch(status) { case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT: // An attachment is the wrong type / is invalid / has 0 width or height return QStringLiteral("GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT"); case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT: // There are no images attached to the framebuffer return QStringLiteral("GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT"); case GL_FRAMEBUFFER_UNSUPPORTED: // A format or the combination of formats of the attachments is unsupported return QStringLiteral("GL_FRAMEBUFFER_UNSUPPORTED"); case GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT: // Not all attached images have the same width and height return QStringLiteral("GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT"); case GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT: // The color attachments don't have the same format return QStringLiteral("GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT"); case GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE_EXT: // The attachments don't have the same number of samples return QStringLiteral("GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE"); case GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT: // The draw buffer is missing return QStringLiteral("GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER"); case GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT: // The read buffer is missing return QStringLiteral("GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER"); default: return QStringLiteral("Unknown (0x") + QString::number(status, 16) + QStringLiteral(")"); } } void GLRenderTarget::initFBO() { #if DEBUG_GLRENDERTARGET GLenum err = glGetError(); if (err != GL_NO_ERROR) qCCritical(LIBKWINGLUTILS) << "Error status when entering GLRenderTarget::initFBO: " << formatGLError(err); #endif glGenFramebuffers(1, &mFramebuffer); #if DEBUG_GLRENDERTARGET if ((err = glGetError()) != GL_NO_ERROR) { qCCritical(LIBKWINGLUTILS) << "glGenFramebuffers failed: " << formatGLError(err); return; } #endif glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer); #if DEBUG_GLRENDERTARGET if ((err = glGetError()) != GL_NO_ERROR) { qCCritical(LIBKWINGLUTILS) << "glBindFramebuffer failed: " << formatGLError(err); glDeleteFramebuffers(1, &mFramebuffer); return; } #endif glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, mTexture.target(), mTexture.texture(), 0); #if DEBUG_GLRENDERTARGET if ((err = glGetError()) != GL_NO_ERROR) { qCCritical(LIBKWINGLUTILS) << "glFramebufferTexture2D failed: " << formatGLError(err); glBindFramebuffer(GL_FRAMEBUFFER, 0); glDeleteFramebuffers(1, &mFramebuffer); return; } #endif const GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER); glBindFramebuffer(GL_FRAMEBUFFER, 0); if (status != GL_FRAMEBUFFER_COMPLETE) { // We have an incomplete framebuffer, consider it invalid if (status == 0) qCCritical(LIBKWINGLUTILS) << "glCheckFramebufferStatus failed: " << formatGLError(glGetError()); else qCCritical(LIBKWINGLUTILS) << "Invalid framebuffer status: " << formatFramebufferStatus(status); glDeleteFramebuffers(1, &mFramebuffer); return; } mValid = true; } void GLRenderTarget::blitFromFramebuffer(const QRect &source, const QRect &destination, GLenum filter) { if (!GLRenderTarget::blitSupported()) { return; } GLRenderTarget::pushRenderTarget(this); glBindFramebuffer(GL_DRAW_FRAMEBUFFER, mFramebuffer); glBindFramebuffer(GL_READ_FRAMEBUFFER, 0); const QRect s = source.isNull() ? s_virtualScreenGeometry : source; const QRect d = destination.isNull() ? QRect(0, 0, mTexture.width(), mTexture.height()) : destination; glBlitFramebuffer(s.x() - s_virtualScreenGeometry.x(), s_virtualScreenGeometry.height() - s_virtualScreenGeometry.y() - s.y() - s.height(), s.x() - s_virtualScreenGeometry.x() + s.width(), s_virtualScreenGeometry.height() - s_virtualScreenGeometry.y() - s.y(), d.x(), mTexture.height() - d.y() - d.height(), d.x() + d.width(), mTexture.height() - d.y(), GL_COLOR_BUFFER_BIT, filter); GLRenderTarget::popRenderTarget(); } void GLRenderTarget::attachTexture(const GLTexture& target) { if (!mValid || mTexture.texture() == target.texture()) { return; } pushRenderTarget(this); mTexture = target; glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, mTexture.target(), mTexture.texture(), 0); popRenderTarget(); } // ------------------------------------------------------------------ static const uint16_t indices[] = { 1, 0, 3, 3, 2, 1, 5, 4, 7, 7, 6, 5, 9, 8, 11, 11, 10, 9, 13, 12, 15, 15, 14, 13, 17, 16, 19, 19, 18, 17, 21, 20, 23, 23, 22, 21, 25, 24, 27, 27, 26, 25, 29, 28, 31, 31, 30, 29, 33, 32, 35, 35, 34, 33, 37, 36, 39, 39, 38, 37, 41, 40, 43, 43, 42, 41, 45, 44, 47, 47, 46, 45, 49, 48, 51, 51, 50, 49, 53, 52, 55, 55, 54, 53, 57, 56, 59, 59, 58, 57, 61, 60, 63, 63, 62, 61, 65, 64, 67, 67, 66, 65, 69, 68, 71, 71, 70, 69, 73, 72, 75, 75, 74, 73, 77, 76, 79, 79, 78, 77, 81, 80, 83, 83, 82, 81, 85, 84, 87, 87, 86, 85, 89, 88, 91, 91, 90, 89, 93, 92, 95, 95, 94, 93, 97, 96, 99, 99, 98, 97, 101, 100, 103, 103, 102, 101, 105, 104, 107, 107, 106, 105, 109, 108, 111, 111, 110, 109, 113, 112, 115, 115, 114, 113, 117, 116, 119, 119, 118, 117, 121, 120, 123, 123, 122, 121, 125, 124, 127, 127, 126, 125, 129, 128, 131, 131, 130, 129, 133, 132, 135, 135, 134, 133, 137, 136, 139, 139, 138, 137, 141, 140, 143, 143, 142, 141, 145, 144, 147, 147, 146, 145, 149, 148, 151, 151, 150, 149, 153, 152, 155, 155, 154, 153, 157, 156, 159, 159, 158, 157, 161, 160, 163, 163, 162, 161, 165, 164, 167, 167, 166, 165, 169, 168, 171, 171, 170, 169, 173, 172, 175, 175, 174, 173, 177, 176, 179, 179, 178, 177, 181, 180, 183, 183, 182, 181, 185, 184, 187, 187, 186, 185, 189, 188, 191, 191, 190, 189, 193, 192, 195, 195, 194, 193, 197, 196, 199, 199, 198, 197, 201, 200, 203, 203, 202, 201, 205, 204, 207, 207, 206, 205, 209, 208, 211, 211, 210, 209, 213, 212, 215, 215, 214, 213, 217, 216, 219, 219, 218, 217, 221, 220, 223, 223, 222, 221, 225, 224, 227, 227, 226, 225, 229, 228, 231, 231, 230, 229, 233, 232, 235, 235, 234, 233, 237, 236, 239, 239, 238, 237, 241, 240, 243, 243, 242, 241, 245, 244, 247, 247, 246, 245, 249, 248, 251, 251, 250, 249, 253, 252, 255, 255, 254, 253, 257, 256, 259, 259, 258, 257, 261, 260, 263, 263, 262, 261, 265, 264, 267, 267, 266, 265, 269, 268, 271, 271, 270, 269, 273, 272, 275, 275, 274, 273, 277, 276, 279, 279, 278, 277, 281, 280, 283, 283, 282, 281, 285, 284, 287, 287, 286, 285, 289, 288, 291, 291, 290, 289, 293, 292, 295, 295, 294, 293, 297, 296, 299, 299, 298, 297, 301, 300, 303, 303, 302, 301, 305, 304, 307, 307, 306, 305, 309, 308, 311, 311, 310, 309, 313, 312, 315, 315, 314, 313, 317, 316, 319, 319, 318, 317, 321, 320, 323, 323, 322, 321, 325, 324, 327, 327, 326, 325, 329, 328, 331, 331, 330, 329, 333, 332, 335, 335, 334, 333, 337, 336, 339, 339, 338, 337, 341, 340, 343, 343, 342, 341, 345, 344, 347, 347, 346, 345, 349, 348, 351, 351, 350, 349, 353, 352, 355, 355, 354, 353, 357, 356, 359, 359, 358, 357, 361, 360, 363, 363, 362, 361, 365, 364, 367, 367, 366, 365, 369, 368, 371, 371, 370, 369, 373, 372, 375, 375, 374, 373, 377, 376, 379, 379, 378, 377, 381, 380, 383, 383, 382, 381, 385, 384, 387, 387, 386, 385, 389, 388, 391, 391, 390, 389, 393, 392, 395, 395, 394, 393, 397, 396, 399, 399, 398, 397, 401, 400, 403, 403, 402, 401, 405, 404, 407, 407, 406, 405, 409, 408, 411, 411, 410, 409, 413, 412, 415, 415, 414, 413, 417, 416, 419, 419, 418, 417, 421, 420, 423, 423, 422, 421, 425, 424, 427, 427, 426, 425, 429, 428, 431, 431, 430, 429, 433, 432, 435, 435, 434, 433, 437, 436, 439, 439, 438, 437, 441, 440, 443, 443, 442, 441, 445, 444, 447, 447, 446, 445, 449, 448, 451, 451, 450, 449, 453, 452, 455, 455, 454, 453, 457, 456, 459, 459, 458, 457, 461, 460, 463, 463, 462, 461, 465, 464, 467, 467, 466, 465, 469, 468, 471, 471, 470, 469, 473, 472, 475, 475, 474, 473, 477, 476, 479, 479, 478, 477, 481, 480, 483, 483, 482, 481, 485, 484, 487, 487, 486, 485, 489, 488, 491, 491, 490, 489, 493, 492, 495, 495, 494, 493, 497, 496, 499, 499, 498, 497, 501, 500, 503, 503, 502, 501, 505, 504, 507, 507, 506, 505, 509, 508, 511, 511, 510, 509, 513, 512, 515, 515, 514, 513, 517, 516, 519, 519, 518, 517, 521, 520, 523, 523, 522, 521, 525, 524, 527, 527, 526, 525, 529, 528, 531, 531, 530, 529, 533, 532, 535, 535, 534, 533, 537, 536, 539, 539, 538, 537, 541, 540, 543, 543, 542, 541, 545, 544, 547, 547, 546, 545, 549, 548, 551, 551, 550, 549, 553, 552, 555, 555, 554, 553, 557, 556, 559, 559, 558, 557, 561, 560, 563, 563, 562, 561, 565, 564, 567, 567, 566, 565, 569, 568, 571, 571, 570, 569, 573, 572, 575, 575, 574, 573, 577, 576, 579, 579, 578, 577, 581, 580, 583, 583, 582, 581, 585, 584, 587, 587, 586, 585, 589, 588, 591, 591, 590, 589, 593, 592, 595, 595, 594, 593, 597, 596, 599, 599, 598, 597, 601, 600, 603, 603, 602, 601, 605, 604, 607, 607, 606, 605, 609, 608, 611, 611, 610, 609, 613, 612, 615, 615, 614, 613, 617, 616, 619, 619, 618, 617, 621, 620, 623, 623, 622, 621, 625, 624, 627, 627, 626, 625, 629, 628, 631, 631, 630, 629, 633, 632, 635, 635, 634, 633, 637, 636, 639, 639, 638, 637, 641, 640, 643, 643, 642, 641, 645, 644, 647, 647, 646, 645, 649, 648, 651, 651, 650, 649, 653, 652, 655, 655, 654, 653, 657, 656, 659, 659, 658, 657, 661, 660, 663, 663, 662, 661, 665, 664, 667, 667, 666, 665, 669, 668, 671, 671, 670, 669, 673, 672, 675, 675, 674, 673, 677, 676, 679, 679, 678, 677, 681, 680, 683, 683, 682, 681, 685, 684, 687, 687, 686, 685, 689, 688, 691, 691, 690, 689, 693, 692, 695, 695, 694, 693, 697, 696, 699, 699, 698, 697, 701, 700, 703, 703, 702, 701, 705, 704, 707, 707, 706, 705, 709, 708, 711, 711, 710, 709, 713, 712, 715, 715, 714, 713, 717, 716, 719, 719, 718, 717, 721, 720, 723, 723, 722, 721, 725, 724, 727, 727, 726, 725, 729, 728, 731, 731, 730, 729, 733, 732, 735, 735, 734, 733, 737, 736, 739, 739, 738, 737, 741, 740, 743, 743, 742, 741, 745, 744, 747, 747, 746, 745, 749, 748, 751, 751, 750, 749, 753, 752, 755, 755, 754, 753, 757, 756, 759, 759, 758, 757, 761, 760, 763, 763, 762, 761, 765, 764, 767, 767, 766, 765, 769, 768, 771, 771, 770, 769, 773, 772, 775, 775, 774, 773, 777, 776, 779, 779, 778, 777, 781, 780, 783, 783, 782, 781, 785, 784, 787, 787, 786, 785, 789, 788, 791, 791, 790, 789, 793, 792, 795, 795, 794, 793, 797, 796, 799, 799, 798, 797, 801, 800, 803, 803, 802, 801, 805, 804, 807, 807, 806, 805, 809, 808, 811, 811, 810, 809, 813, 812, 815, 815, 814, 813, 817, 816, 819, 819, 818, 817, 821, 820, 823, 823, 822, 821, 825, 824, 827, 827, 826, 825, 829, 828, 831, 831, 830, 829, 833, 832, 835, 835, 834, 833, 837, 836, 839, 839, 838, 837, 841, 840, 843, 843, 842, 841, 845, 844, 847, 847, 846, 845, 849, 848, 851, 851, 850, 849, 853, 852, 855, 855, 854, 853, 857, 856, 859, 859, 858, 857, 861, 860, 863, 863, 862, 861, 865, 864, 867, 867, 866, 865, 869, 868, 871, 871, 870, 869, 873, 872, 875, 875, 874, 873, 877, 876, 879, 879, 878, 877, 881, 880, 883, 883, 882, 881, 885, 884, 887, 887, 886, 885, 889, 888, 891, 891, 890, 889, 893, 892, 895, 895, 894, 893, 897, 896, 899, 899, 898, 897, 901, 900, 903, 903, 902, 901, 905, 904, 907, 907, 906, 905, 909, 908, 911, 911, 910, 909, 913, 912, 915, 915, 914, 913, 917, 916, 919, 919, 918, 917, 921, 920, 923, 923, 922, 921, 925, 924, 927, 927, 926, 925, 929, 928, 931, 931, 930, 929, 933, 932, 935, 935, 934, 933, 937, 936, 939, 939, 938, 937, 941, 940, 943, 943, 942, 941, 945, 944, 947, 947, 946, 945, 949, 948, 951, 951, 950, 949, 953, 952, 955, 955, 954, 953, 957, 956, 959, 959, 958, 957, 961, 960, 963, 963, 962, 961, 965, 964, 967, 967, 966, 965, 969, 968, 971, 971, 970, 969, 973, 972, 975, 975, 974, 973, 977, 976, 979, 979, 978, 977, 981, 980, 983, 983, 982, 981, 985, 984, 987, 987, 986, 985, 989, 988, 991, 991, 990, 989, 993, 992, 995, 995, 994, 993, 997, 996, 999, 999, 998, 997, 1001, 1000, 1003, 1003, 1002, 1001, 1005, 1004, 1007, 1007, 1006, 1005, 1009, 1008, 1011, 1011, 1010, 1009, 1013, 1012, 1015, 1015, 1014, 1013, 1017, 1016, 1019, 1019, 1018, 1017, 1021, 1020, 1023, 1023, 1022, 1021, 1025, 1024, 1027, 1027, 1026, 1025, 1029, 1028, 1031, 1031, 1030, 1029, 1033, 1032, 1035, 1035, 1034, 1033, 1037, 1036, 1039, 1039, 1038, 1037, 1041, 1040, 1043, 1043, 1042, 1041, 1045, 1044, 1047, 1047, 1046, 1045, 1049, 1048, 1051, 1051, 1050, 1049, 1053, 1052, 1055, 1055, 1054, 1053, 1057, 1056, 1059, 1059, 1058, 1057, 1061, 1060, 1063, 1063, 1062, 1061, 1065, 1064, 1067, 1067, 1066, 1065, 1069, 1068, 1071, 1071, 1070, 1069, 1073, 1072, 1075, 1075, 1074, 1073, 1077, 1076, 1079, 1079, 1078, 1077, 1081, 1080, 1083, 1083, 1082, 1081, 1085, 1084, 1087, 1087, 1086, 1085, 1089, 1088, 1091, 1091, 1090, 1089, 1093, 1092, 1095, 1095, 1094, 1093, 1097, 1096, 1099, 1099, 1098, 1097, 1101, 1100, 1103, 1103, 1102, 1101, 1105, 1104, 1107, 1107, 1106, 1105, 1109, 1108, 1111, 1111, 1110, 1109, 1113, 1112, 1115, 1115, 1114, 1113, 1117, 1116, 1119, 1119, 1118, 1117, 1121, 1120, 1123, 1123, 1122, 1121, 1125, 1124, 1127, 1127, 1126, 1125, 1129, 1128, 1131, 1131, 1130, 1129, 1133, 1132, 1135, 1135, 1134, 1133, 1137, 1136, 1139, 1139, 1138, 1137, 1141, 1140, 1143, 1143, 1142, 1141, 1145, 1144, 1147, 1147, 1146, 1145, 1149, 1148, 1151, 1151, 1150, 1149, 1153, 1152, 1155, 1155, 1154, 1153, 1157, 1156, 1159, 1159, 1158, 1157, 1161, 1160, 1163, 1163, 1162, 1161, 1165, 1164, 1167, 1167, 1166, 1165, 1169, 1168, 1171, 1171, 1170, 1169, 1173, 1172, 1175, 1175, 1174, 1173, 1177, 1176, 1179, 1179, 1178, 1177, 1181, 1180, 1183, 1183, 1182, 1181, 1185, 1184, 1187, 1187, 1186, 1185, 1189, 1188, 1191, 1191, 1190, 1189, 1193, 1192, 1195, 1195, 1194, 1193, 1197, 1196, 1199, 1199, 1198, 1197, 1201, 1200, 1203, 1203, 1202, 1201, 1205, 1204, 1207, 1207, 1206, 1205, 1209, 1208, 1211, 1211, 1210, 1209, 1213, 1212, 1215, 1215, 1214, 1213, 1217, 1216, 1219, 1219, 1218, 1217, 1221, 1220, 1223, 1223, 1222, 1221, 1225, 1224, 1227, 1227, 1226, 1225, 1229, 1228, 1231, 1231, 1230, 1229, 1233, 1232, 1235, 1235, 1234, 1233, 1237, 1236, 1239, 1239, 1238, 1237, 1241, 1240, 1243, 1243, 1242, 1241, 1245, 1244, 1247, 1247, 1246, 1245, 1249, 1248, 1251, 1251, 1250, 1249, 1253, 1252, 1255, 1255, 1254, 1253, 1257, 1256, 1259, 1259, 1258, 1257, 1261, 1260, 1263, 1263, 1262, 1261, 1265, 1264, 1267, 1267, 1266, 1265, 1269, 1268, 1271, 1271, 1270, 1269, 1273, 1272, 1275, 1275, 1274, 1273, 1277, 1276, 1279, 1279, 1278, 1277, 1281, 1280, 1283, 1283, 1282, 1281, 1285, 1284, 1287, 1287, 1286, 1285, 1289, 1288, 1291, 1291, 1290, 1289, 1293, 1292, 1295, 1295, 1294, 1293, 1297, 1296, 1299, 1299, 1298, 1297, 1301, 1300, 1303, 1303, 1302, 1301, 1305, 1304, 1307, 1307, 1306, 1305, 1309, 1308, 1311, 1311, 1310, 1309, 1313, 1312, 1315, 1315, 1314, 1313, 1317, 1316, 1319, 1319, 1318, 1317, 1321, 1320, 1323, 1323, 1322, 1321, 1325, 1324, 1327, 1327, 1326, 1325, 1329, 1328, 1331, 1331, 1330, 1329, 1333, 1332, 1335, 1335, 1334, 1333, 1337, 1336, 1339, 1339, 1338, 1337, 1341, 1340, 1343, 1343, 1342, 1341, 1345, 1344, 1347, 1347, 1346, 1345, 1349, 1348, 1351, 1351, 1350, 1349, 1353, 1352, 1355, 1355, 1354, 1353, 1357, 1356, 1359, 1359, 1358, 1357, 1361, 1360, 1363, 1363, 1362, 1361, 1365, 1364, 1367, 1367, 1366, 1365, 1369, 1368, 1371, 1371, 1370, 1369, 1373, 1372, 1375, 1375, 1374, 1373, 1377, 1376, 1379, 1379, 1378, 1377, 1381, 1380, 1383, 1383, 1382, 1381, 1385, 1384, 1387, 1387, 1386, 1385, 1389, 1388, 1391, 1391, 1390, 1389, 1393, 1392, 1395, 1395, 1394, 1393, 1397, 1396, 1399, 1399, 1398, 1397, 1401, 1400, 1403, 1403, 1402, 1401, 1405, 1404, 1407, 1407, 1406, 1405, 1409, 1408, 1411, 1411, 1410, 1409, 1413, 1412, 1415, 1415, 1414, 1413, 1417, 1416, 1419, 1419, 1418, 1417, 1421, 1420, 1423, 1423, 1422, 1421, 1425, 1424, 1427, 1427, 1426, 1425, 1429, 1428, 1431, 1431, 1430, 1429, 1433, 1432, 1435, 1435, 1434, 1433, 1437, 1436, 1439, 1439, 1438, 1437, 1441, 1440, 1443, 1443, 1442, 1441, 1445, 1444, 1447, 1447, 1446, 1445, 1449, 1448, 1451, 1451, 1450, 1449, 1453, 1452, 1455, 1455, 1454, 1453, 1457, 1456, 1459, 1459, 1458, 1457, 1461, 1460, 1463, 1463, 1462, 1461, 1465, 1464, 1467, 1467, 1466, 1465, 1469, 1468, 1471, 1471, 1470, 1469, 1473, 1472, 1475, 1475, 1474, 1473, 1477, 1476, 1479, 1479, 1478, 1477, 1481, 1480, 1483, 1483, 1482, 1481, 1485, 1484, 1487, 1487, 1486, 1485, 1489, 1488, 1491, 1491, 1490, 1489, 1493, 1492, 1495, 1495, 1494, 1493, 1497, 1496, 1499, 1499, 1498, 1497, 1501, 1500, 1503, 1503, 1502, 1501, 1505, 1504, 1507, 1507, 1506, 1505, 1509, 1508, 1511, 1511, 1510, 1509, 1513, 1512, 1515, 1515, 1514, 1513, 1517, 1516, 1519, 1519, 1518, 1517, 1521, 1520, 1523, 1523, 1522, 1521, 1525, 1524, 1527, 1527, 1526, 1525, 1529, 1528, 1531, 1531, 1530, 1529, 1533, 1532, 1535, 1535, 1534, 1533, 1537, 1536, 1539, 1539, 1538, 1537, 1541, 1540, 1543, 1543, 1542, 1541, 1545, 1544, 1547, 1547, 1546, 1545, 1549, 1548, 1551, 1551, 1550, 1549, 1553, 1552, 1555, 1555, 1554, 1553, 1557, 1556, 1559, 1559, 1558, 1557, 1561, 1560, 1563, 1563, 1562, 1561, 1565, 1564, 1567, 1567, 1566, 1565, 1569, 1568, 1571, 1571, 1570, 1569, 1573, 1572, 1575, 1575, 1574, 1573, 1577, 1576, 1579, 1579, 1578, 1577, 1581, 1580, 1583, 1583, 1582, 1581, 1585, 1584, 1587, 1587, 1586, 1585, 1589, 1588, 1591, 1591, 1590, 1589, 1593, 1592, 1595, 1595, 1594, 1593, 1597, 1596, 1599, 1599, 1598, 1597, 1601, 1600, 1603, 1603, 1602, 1601, 1605, 1604, 1607, 1607, 1606, 1605, 1609, 1608, 1611, 1611, 1610, 1609, 1613, 1612, 1615, 1615, 1614, 1613, 1617, 1616, 1619, 1619, 1618, 1617, 1621, 1620, 1623, 1623, 1622, 1621, 1625, 1624, 1627, 1627, 1626, 1625, 1629, 1628, 1631, 1631, 1630, 1629, 1633, 1632, 1635, 1635, 1634, 1633, 1637, 1636, 1639, 1639, 1638, 1637, 1641, 1640, 1643, 1643, 1642, 1641, 1645, 1644, 1647, 1647, 1646, 1645, 1649, 1648, 1651, 1651, 1650, 1649, 1653, 1652, 1655, 1655, 1654, 1653, 1657, 1656, 1659, 1659, 1658, 1657, 1661, 1660, 1663, 1663, 1662, 1661, 1665, 1664, 1667, 1667, 1666, 1665, 1669, 1668, 1671, 1671, 1670, 1669, 1673, 1672, 1675, 1675, 1674, 1673, 1677, 1676, 1679, 1679, 1678, 1677, 1681, 1680, 1683, 1683, 1682, 1681, 1685, 1684, 1687, 1687, 1686, 1685, 1689, 1688, 1691, 1691, 1690, 1689, 1693, 1692, 1695, 1695, 1694, 1693, 1697, 1696, 1699, 1699, 1698, 1697, 1701, 1700, 1703, 1703, 1702, 1701, 1705, 1704, 1707, 1707, 1706, 1705, 1709, 1708, 1711, 1711, 1710, 1709, 1713, 1712, 1715, 1715, 1714, 1713, 1717, 1716, 1719, 1719, 1718, 1717, 1721, 1720, 1723, 1723, 1722, 1721, 1725, 1724, 1727, 1727, 1726, 1725, 1729, 1728, 1731, 1731, 1730, 1729, 1733, 1732, 1735, 1735, 1734, 1733, 1737, 1736, 1739, 1739, 1738, 1737, 1741, 1740, 1743, 1743, 1742, 1741, 1745, 1744, 1747, 1747, 1746, 1745, 1749, 1748, 1751, 1751, 1750, 1749, 1753, 1752, 1755, 1755, 1754, 1753, 1757, 1756, 1759, 1759, 1758, 1757, 1761, 1760, 1763, 1763, 1762, 1761, 1765, 1764, 1767, 1767, 1766, 1765, 1769, 1768, 1771, 1771, 1770, 1769, 1773, 1772, 1775, 1775, 1774, 1773, 1777, 1776, 1779, 1779, 1778, 1777, 1781, 1780, 1783, 1783, 1782, 1781, 1785, 1784, 1787, 1787, 1786, 1785, 1789, 1788, 1791, 1791, 1790, 1789, 1793, 1792, 1795, 1795, 1794, 1793, 1797, 1796, 1799, 1799, 1798, 1797, 1801, 1800, 1803, 1803, 1802, 1801, 1805, 1804, 1807, 1807, 1806, 1805, 1809, 1808, 1811, 1811, 1810, 1809, 1813, 1812, 1815, 1815, 1814, 1813, 1817, 1816, 1819, 1819, 1818, 1817, 1821, 1820, 1823, 1823, 1822, 1821, 1825, 1824, 1827, 1827, 1826, 1825, 1829, 1828, 1831, 1831, 1830, 1829, 1833, 1832, 1835, 1835, 1834, 1833, 1837, 1836, 1839, 1839, 1838, 1837, 1841, 1840, 1843, 1843, 1842, 1841, 1845, 1844, 1847, 1847, 1846, 1845, 1849, 1848, 1851, 1851, 1850, 1849, 1853, 1852, 1855, 1855, 1854, 1853, 1857, 1856, 1859, 1859, 1858, 1857, 1861, 1860, 1863, 1863, 1862, 1861, 1865, 1864, 1867, 1867, 1866, 1865, 1869, 1868, 1871, 1871, 1870, 1869, 1873, 1872, 1875, 1875, 1874, 1873, 1877, 1876, 1879, 1879, 1878, 1877, 1881, 1880, 1883, 1883, 1882, 1881, 1885, 1884, 1887, 1887, 1886, 1885, 1889, 1888, 1891, 1891, 1890, 1889, 1893, 1892, 1895, 1895, 1894, 1893, 1897, 1896, 1899, 1899, 1898, 1897, 1901, 1900, 1903, 1903, 1902, 1901, 1905, 1904, 1907, 1907, 1906, 1905, 1909, 1908, 1911, 1911, 1910, 1909, 1913, 1912, 1915, 1915, 1914, 1913, 1917, 1916, 1919, 1919, 1918, 1917, 1921, 1920, 1923, 1923, 1922, 1921, 1925, 1924, 1927, 1927, 1926, 1925, 1929, 1928, 1931, 1931, 1930, 1929, 1933, 1932, 1935, 1935, 1934, 1933, 1937, 1936, 1939, 1939, 1938, 1937, 1941, 1940, 1943, 1943, 1942, 1941, 1945, 1944, 1947, 1947, 1946, 1945, 1949, 1948, 1951, 1951, 1950, 1949, 1953, 1952, 1955, 1955, 1954, 1953, 1957, 1956, 1959, 1959, 1958, 1957, 1961, 1960, 1963, 1963, 1962, 1961, 1965, 1964, 1967, 1967, 1966, 1965, 1969, 1968, 1971, 1971, 1970, 1969, 1973, 1972, 1975, 1975, 1974, 1973, 1977, 1976, 1979, 1979, 1978, 1977, 1981, 1980, 1983, 1983, 1982, 1981, 1985, 1984, 1987, 1987, 1986, 1985, 1989, 1988, 1991, 1991, 1990, 1989, 1993, 1992, 1995, 1995, 1994, 1993, 1997, 1996, 1999, 1999, 1998, 1997, 2001, 2000, 2003, 2003, 2002, 2001, 2005, 2004, 2007, 2007, 2006, 2005, 2009, 2008, 2011, 2011, 2010, 2009, 2013, 2012, 2015, 2015, 2014, 2013, 2017, 2016, 2019, 2019, 2018, 2017, 2021, 2020, 2023, 2023, 2022, 2021, 2025, 2024, 2027, 2027, 2026, 2025, 2029, 2028, 2031, 2031, 2030, 2029, 2033, 2032, 2035, 2035, 2034, 2033, 2037, 2036, 2039, 2039, 2038, 2037, 2041, 2040, 2043, 2043, 2042, 2041, 2045, 2044, 2047, 2047, 2046, 2045 }; template T align(T value, int bytes) { return (value + bytes - 1) & ~T(bytes - 1); } class IndexBuffer { public: IndexBuffer(); ~IndexBuffer(); void accomodate(int count); void bind(); private: GLuint m_buffer; size_t m_size; int m_count; }; IndexBuffer::IndexBuffer() { // The maximum number of quads we can render with 16 bit indices is 16,384. // But we start with 512 and grow the buffer as needed. m_size = sizeof(indices); m_count = m_size / (6 * sizeof(uint16_t)); glGenBuffers(1, &m_buffer); glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_buffer); glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices, GL_STATIC_DRAW); } IndexBuffer::~IndexBuffer() { glDeleteBuffers(1, &m_buffer); } void IndexBuffer::accomodate(int count) { // Check if we need to grow the buffer. if (count <= m_count) return; count = align(count, 128); size_t size = 6 * sizeof(uint16_t) * count; // Create a new buffer object GLuint buffer; glGenBuffers(1, &buffer); glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, buffer); glBufferData(GL_ELEMENT_ARRAY_BUFFER, size, nullptr, GL_STATIC_DRAW); // Use the GPU to copy the data from the old object to the new object, glBindBuffer(GL_COPY_READ_BUFFER, m_buffer); glCopyBufferSubData(GL_COPY_READ_BUFFER, GL_ELEMENT_ARRAY_BUFFER, 0, 0, m_size); glDeleteBuffers(1, &m_buffer); glFlush(); // Needed to work around what appears to be a CP DMA issue in r600g // Map the new object and fill in the uninitialized section const GLbitfield access = GL_MAP_WRITE_BIT | GL_MAP_UNSYNCHRONIZED_BIT | GL_MAP_INVALIDATE_RANGE_BIT; uint16_t *map = (uint16_t *) glMapBufferRange(GL_ELEMENT_ARRAY_BUFFER, m_size, size - m_size, access); const uint16_t index[] = { 1, 0, 3, 3, 2, 1 }; for (int i = m_count; i < count; i++) { for (int j = 0; j < 6; j++) *(map++) = i * 4 + index[j]; } glUnmapBuffer(GL_ELEMENT_ARRAY_BUFFER); m_buffer = buffer; m_count = count; m_size = size; } void IndexBuffer::bind() { glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_buffer); } // ------------------------------------------------------------------ class BitRef { public: BitRef(uint32_t &bitfield, int bit) : m_bitfield(bitfield), m_mask(1 << bit) {} void operator = (bool val) { if (val) m_bitfield |= m_mask; else m_bitfield &= ~m_mask; } operator bool () const { return m_bitfield & m_mask; } private: uint32_t &m_bitfield; int const m_mask; }; // ------------------------------------------------------------------ class Bitfield { public: Bitfield() : m_bitfield(0) {} Bitfield(uint32_t bits) : m_bitfield(bits) {} void set(int i) { m_bitfield |= (1 << i); } void clear(int i) { m_bitfield &= ~(1 << i); } BitRef operator [] (int i) { return BitRef(m_bitfield, i); } operator uint32_t () const { return m_bitfield; } private: uint32_t m_bitfield; }; // ------------------------------------------------------------------ class BitfieldIterator { public: BitfieldIterator(uint32_t bitfield) : m_bitfield(bitfield) {} bool hasNext() const { return m_bitfield != 0; } int next() { const int bit = ffs(m_bitfield) - 1; m_bitfield ^= (1 << bit); return bit; } private: uint32_t m_bitfield; }; // ------------------------------------------------------------------ struct VertexAttrib { int size; GLenum type; int offset; }; // ------------------------------------------------------------------ struct BufferFence { GLsync sync; intptr_t nextEnd; bool signaled() const { GLint value; glGetSynciv(sync, GL_SYNC_STATUS, 1, nullptr, &value); return value == GL_SIGNALED; } }; static void deleteAll(std::deque &fences) { for (const BufferFence &fence : fences) glDeleteSync(fence.sync); fences.clear(); } // ------------------------------------------------------------------ template struct FrameSizesArray { public: FrameSizesArray() { m_array.fill(0); } void push(size_t size) { m_array[m_index] = size; m_index = (m_index + 1) % Count; } size_t average() const { size_t sum = 0; for (size_t size : m_array) sum += size; return sum / Count; } private: std::array m_array; int m_index = 0; }; //********************************* // GLVertexBufferPrivate //********************************* class GLVertexBufferPrivate { public: GLVertexBufferPrivate(GLVertexBuffer::UsageHint usageHint) : vertexCount(0) , persistent(false) , useColor(false) , color(0, 0, 0, 255) , bufferSize(0) , bufferEnd(0) , mappedSize(0) , frameSize(0) , nextOffset(0) , baseAddress(0) , map(nullptr) { glGenBuffers(1, &buffer); switch(usageHint) { case GLVertexBuffer::Dynamic: usage = GL_DYNAMIC_DRAW; break; case GLVertexBuffer::Static: usage = GL_STATIC_DRAW; break; default: usage = GL_STREAM_DRAW; break; } } ~GLVertexBufferPrivate() { deleteAll(fences); if (buffer != 0) { glDeleteBuffers(1, &buffer); map = nullptr; } } void interleaveArrays(float *array, int dim, const float *vertices, const float *texcoords, int count); void bindArrays(); void unbindArrays(); void reallocateBuffer(size_t size); GLvoid *mapNextFreeRange(size_t size); void reallocatePersistentBuffer(size_t size); bool awaitFence(intptr_t offset); GLvoid *getIdleRange(size_t size); GLuint buffer; GLenum usage; int stride; int vertexCount; static GLVertexBuffer *streamingBuffer; static bool haveBufferStorage; static bool haveSyncFences; static bool hasMapBufferRange; static bool supportsIndexedQuads; QByteArray dataStore; bool persistent; bool useColor; QVector4D color; size_t bufferSize; intptr_t bufferEnd; size_t mappedSize; size_t frameSize; intptr_t nextOffset; intptr_t baseAddress; uint8_t *map; std::deque fences; FrameSizesArray<4> frameSizes; VertexAttrib attrib[VertexAttributeCount]; Bitfield enabledArrays; static IndexBuffer *s_indexBuffer; }; bool GLVertexBufferPrivate::hasMapBufferRange = false; bool GLVertexBufferPrivate::supportsIndexedQuads = false; GLVertexBuffer *GLVertexBufferPrivate::streamingBuffer = nullptr; bool GLVertexBufferPrivate::haveBufferStorage = false; bool GLVertexBufferPrivate::haveSyncFences = false; IndexBuffer *GLVertexBufferPrivate::s_indexBuffer = nullptr; void GLVertexBufferPrivate::interleaveArrays(float *dst, int dim, const float *vertices, const float *texcoords, int count) { if (!texcoords) { memcpy((void *) dst, vertices, dim * sizeof(float) * count); return; } switch (dim) { case 2: for (int i = 0; i < count; i++) { *(dst++) = *(vertices++); *(dst++) = *(vertices++); *(dst++) = *(texcoords++); *(dst++) = *(texcoords++); } break; case 3: for (int i = 0; i < count; i++) { *(dst++) = *(vertices++); *(dst++) = *(vertices++); *(dst++) = *(vertices++); *(dst++) = *(texcoords++); *(dst++) = *(texcoords++); } break; default: for (int i = 0; i < count; i++) { for (int j = 0; j < dim; j++) *(dst++) = *(vertices++); *(dst++) = *(texcoords++); *(dst++) = *(texcoords++); } } } void GLVertexBufferPrivate::bindArrays() { if (useColor) { GLShader *shader = ShaderManager::instance()->getBoundShader(); shader->setUniform(GLShader::Color, color); } glBindBuffer(GL_ARRAY_BUFFER, buffer); BitfieldIterator it(enabledArrays); while (it.hasNext()) { const int index = it.next(); glVertexAttribPointer(index, attrib[index].size, attrib[index].type, GL_FALSE, stride, (const GLvoid *) (baseAddress + attrib[index].offset)); glEnableVertexAttribArray(index); } } void GLVertexBufferPrivate::unbindArrays() { BitfieldIterator it(enabledArrays); while (it.hasNext()) glDisableVertexAttribArray(it.next()); } void GLVertexBufferPrivate::reallocatePersistentBuffer(size_t size) { if (buffer != 0) { // This also unmaps and unbinds the buffer glDeleteBuffers(1, &buffer); buffer = 0; deleteAll(fences); } if (buffer == 0) glGenBuffers(1, &buffer); // Round the size up to 64 kb size_t minSize = qMax(frameSizes.average() * 3, 128 * 1024); bufferSize = align(qMax(size, minSize), 64 * 1024); const GLbitfield storage = GL_DYNAMIC_STORAGE_BIT; const GLbitfield access = GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT | GL_MAP_COHERENT_BIT; glBindBuffer(GL_ARRAY_BUFFER, buffer); glBufferStorage(GL_ARRAY_BUFFER, bufferSize, nullptr, storage | access); map = (uint8_t *) glMapBufferRange(GL_ARRAY_BUFFER, 0, bufferSize, access); nextOffset = 0; bufferEnd = bufferSize; } bool GLVertexBufferPrivate::awaitFence(intptr_t end) { // Skip fences until we reach the end offset while (!fences.empty() && fences.front().nextEnd < end) { glDeleteSync(fences.front().sync); fences.pop_front(); } assert(!fences.empty()); // Wait on the next fence const BufferFence &fence = fences.front(); if (!fence.signaled()) { qCDebug(LIBKWINGLUTILS) << "Stalling on VBO fence"; const GLenum ret = glClientWaitSync(fence.sync, GL_SYNC_FLUSH_COMMANDS_BIT, 1000000000); if (ret == GL_TIMEOUT_EXPIRED || ret == GL_WAIT_FAILED) { qCCritical(LIBKWINGLUTILS) << "Wait failed"; return false; } } glDeleteSync(fence.sync); // Update the end pointer bufferEnd = fence.nextEnd; fences.pop_front(); return true; } GLvoid *GLVertexBufferPrivate::getIdleRange(size_t size) { if (unlikely(size > bufferSize)) reallocatePersistentBuffer(size * 2); // Handle wrap-around if (unlikely(nextOffset + size > bufferSize)) { nextOffset = 0; bufferEnd -= bufferSize; for (BufferFence &fence : fences) fence.nextEnd -= bufferSize; // Emit a fence now BufferFence fence; fence.sync = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0); fence.nextEnd = bufferSize; fences.emplace_back(fence); } if (unlikely(nextOffset + intptr_t(size) > bufferEnd)) { if (!awaitFence(nextOffset + size)) return nullptr; } return map + nextOffset; } void GLVertexBufferPrivate::reallocateBuffer(size_t size) { // Round the size up to 4 Kb for streaming/dynamic buffers. const size_t minSize = 32768; // Minimum size for streaming buffers const size_t alloc = usage != GL_STATIC_DRAW ? align(qMax(size, minSize), 4096) : size; glBufferData(GL_ARRAY_BUFFER, alloc, 0, usage); bufferSize = alloc; } GLvoid *GLVertexBufferPrivate::mapNextFreeRange(size_t size) { GLbitfield access = GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_RANGE_BIT | GL_MAP_UNSYNCHRONIZED_BIT; if ((nextOffset + size) > bufferSize) { // Reallocate the data store if it's too small. if (size > bufferSize) { reallocateBuffer(size); } else { access |= GL_MAP_INVALIDATE_BUFFER_BIT; access ^= GL_MAP_UNSYNCHRONIZED_BIT; } nextOffset = 0; } return glMapBufferRange(GL_ARRAY_BUFFER, nextOffset, size, access); } //********************************* // GLVertexBuffer //********************************* QRect GLVertexBuffer::s_virtualScreenGeometry; GLVertexBuffer::GLVertexBuffer(UsageHint hint) : d(new GLVertexBufferPrivate(hint)) { } GLVertexBuffer::~GLVertexBuffer() { delete d; } void GLVertexBuffer::setData(const void *data, size_t size) { GLvoid *ptr = map(size); memcpy(ptr, data, size); unmap(); } void GLVertexBuffer::setData(int vertexCount, int dim, const float* vertices, const float* texcoords) { const GLVertexAttrib layout[] = { { VA_Position, dim, GL_FLOAT, 0 }, { VA_TexCoord, 2, GL_FLOAT, int(dim * sizeof(float)) } }; int stride = (texcoords ? dim + 2 : dim) * sizeof(float); int attribCount = texcoords ? 2 : 1; setAttribLayout(layout, attribCount, stride); setVertexCount(vertexCount); GLvoid *ptr = map(vertexCount * stride); d->interleaveArrays((float *) ptr, dim, vertices, texcoords, vertexCount); unmap(); } GLvoid *GLVertexBuffer::map(size_t size) { d->mappedSize = size; d->frameSize += size; if (d->persistent) return d->getIdleRange(size); glBindBuffer(GL_ARRAY_BUFFER, d->buffer); bool preferBufferSubData = GLPlatform::instance()->preferBufferSubData(); if (GLVertexBufferPrivate::hasMapBufferRange && !preferBufferSubData) return (GLvoid *) d->mapNextFreeRange(size); // If we can't map the buffer we allocate local memory to hold the // buffer data and return a pointer to it. The data will be submitted // to the actual buffer object when the user calls unmap(). if (size_t(d->dataStore.size()) < size) d->dataStore.resize(size); return (GLvoid *) d->dataStore.data(); } void GLVertexBuffer::unmap() { if (d->persistent) { d->baseAddress = d->nextOffset; d->nextOffset += align(d->mappedSize, 16); // Align to 16 bytes for SSE d->mappedSize = 0; return; } bool preferBufferSubData = GLPlatform::instance()->preferBufferSubData(); if (GLVertexBufferPrivate::hasMapBufferRange && !preferBufferSubData) { glUnmapBuffer(GL_ARRAY_BUFFER); d->baseAddress = d->nextOffset; d->nextOffset += align(d->mappedSize, 16); // Align to 16 bytes for SSE } else { // Upload the data from local memory to the buffer object if (preferBufferSubData) { if ((d->nextOffset + d->mappedSize) > d->bufferSize) { d->reallocateBuffer(d->mappedSize); d->nextOffset = 0; } glBufferSubData(GL_ARRAY_BUFFER, d->nextOffset, d->mappedSize, d->dataStore.constData()); d->baseAddress = d->nextOffset; d->nextOffset += align(d->mappedSize, 16); // Align to 16 bytes for SSE } else { glBufferData(GL_ARRAY_BUFFER, d->mappedSize, d->dataStore.data(), d->usage); d->baseAddress = 0; } // Free the local memory buffer if it's unlikely to be used again if (d->usage == GL_STATIC_DRAW) d->dataStore = QByteArray(); } d->mappedSize = 0; } void GLVertexBuffer::setVertexCount(int count) { d->vertexCount = count; } void GLVertexBuffer::setAttribLayout(const GLVertexAttrib *attribs, int count, int stride) { // Start by disabling all arrays d->enabledArrays = 0; for (int i = 0; i < count; i++) { const int index = attribs[i].index; assert(index >= 0 && index < VertexAttributeCount); assert(!d->enabledArrays[index]); d->attrib[index].size = attribs[i].size; d->attrib[index].type = attribs[i].type; d->attrib[index].offset = attribs[i].relativeOffset; d->enabledArrays[index] = true; } d->stride = stride; } void GLVertexBuffer::render(GLenum primitiveMode) { render(infiniteRegion(), primitiveMode, false); } void GLVertexBuffer::render(const QRegion& region, GLenum primitiveMode, bool hardwareClipping) { d->bindArrays(); draw(region, primitiveMode, 0, d->vertexCount, hardwareClipping); d->unbindArrays(); } void GLVertexBuffer::bindArrays() { d->bindArrays(); } void GLVertexBuffer::unbindArrays() { d->unbindArrays(); } void GLVertexBuffer::draw(GLenum primitiveMode, int first, int count) { draw(infiniteRegion(), primitiveMode, first, count, false); } void GLVertexBuffer::draw(const QRegion ®ion, GLenum primitiveMode, int first, int count, bool hardwareClipping) { if (primitiveMode == GL_QUADS) { IndexBuffer *&indexBuffer = GLVertexBufferPrivate::s_indexBuffer; if (!indexBuffer) indexBuffer = new IndexBuffer; indexBuffer->bind(); indexBuffer->accomodate(count / 4); count = count * 6 / 4; if (!hardwareClipping) { glDrawElementsBaseVertex(GL_TRIANGLES, count, GL_UNSIGNED_SHORT, nullptr, first); } else { // Clip using scissoring foreach (const QRect &r, region.rects()) { glScissor(r.x() - s_virtualScreenGeometry.x(), s_virtualScreenGeometry.height() - s_virtualScreenGeometry.y() - r.y() - r.height(), r.width(), r.height()); glDrawElementsBaseVertex(GL_TRIANGLES, count, GL_UNSIGNED_SHORT, nullptr, first); } } return; } if (!hardwareClipping) { glDrawArrays(primitiveMode, first, count); } else { // Clip using scissoring foreach (const QRect &r, region.rects()) { glScissor(r.x() - s_virtualScreenGeometry.x(), s_virtualScreenGeometry.height() - s_virtualScreenGeometry.y() - r.y() - r.height(), r.width(), r.height()); glDrawArrays(primitiveMode, first, count); } } } bool GLVertexBuffer::supportsIndexedQuads() { return GLVertexBufferPrivate::supportsIndexedQuads; } bool GLVertexBuffer::isUseColor() const { return d->useColor; } void GLVertexBuffer::setUseColor(bool enable) { d->useColor = enable; } void GLVertexBuffer::setColor(const QColor& color, bool enable) { d->useColor = enable; d->color = QVector4D(color.redF(), color.greenF(), color.blueF(), color.alphaF()); } void GLVertexBuffer::reset() { d->useColor = false; d->color = QVector4D(0, 0, 0, 1); d->vertexCount = 0; } void GLVertexBuffer::endOfFrame() { if (!d->persistent) return; // Emit a fence if we have uploaded data if (d->frameSize > 0) { d->frameSizes.push(d->frameSize); d->frameSize = 0; // Force the buffer to be reallocated at the beginning of the next frame // if the average frame size is greater than half the size of the buffer if (unlikely(d->frameSizes.average() > d->bufferSize / 2)) { deleteAll(d->fences); glDeleteBuffers(1, &d->buffer); d->buffer = 0; d->bufferSize = 0; d->nextOffset = 0; d->map = nullptr; } else { BufferFence fence; fence.sync = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0); fence.nextEnd = d->nextOffset + d->bufferSize; d->fences.emplace_back(fence); } } } void GLVertexBuffer::framePosted() { if (!d->persistent) return; // Remove finished fences from the list and update the bufferEnd offset while (d->fences.size() > 1 && d->fences.front().signaled()) { const BufferFence &fence = d->fences.front(); glDeleteSync(fence.sync); d->bufferEnd = fence.nextEnd; d->fences.pop_front(); } } void GLVertexBuffer::initStatic() { if (GLPlatform::instance()->isGLES()) { bool haveBaseVertex = hasGLExtension(QByteArrayLiteral("GL_OES_draw_elements_base_vertex")); bool haveCopyBuffer = hasGLVersion(3, 0); bool haveMapBufferRange = hasGLExtension(QByteArrayLiteral("GL_EXT_map_buffer_range")); GLVertexBufferPrivate::hasMapBufferRange = haveMapBufferRange; GLVertexBufferPrivate::supportsIndexedQuads = haveBaseVertex && haveCopyBuffer && haveMapBufferRange; GLVertexBufferPrivate::haveBufferStorage = hasGLExtension("GL_EXT_buffer_storage"); GLVertexBufferPrivate::haveSyncFences = hasGLVersion(3, 0); } else { bool haveBaseVertex = hasGLVersion(3, 2) || hasGLExtension(QByteArrayLiteral("GL_ARB_draw_elements_base_vertex")); bool haveCopyBuffer = hasGLVersion(3, 1) || hasGLExtension(QByteArrayLiteral("GL_ARB_copy_buffer")); bool haveMapBufferRange = hasGLVersion(3, 0) || hasGLExtension(QByteArrayLiteral("GL_ARB_map_buffer_range")); GLVertexBufferPrivate::hasMapBufferRange = haveMapBufferRange; GLVertexBufferPrivate::supportsIndexedQuads = haveBaseVertex && haveCopyBuffer && haveMapBufferRange; GLVertexBufferPrivate::haveBufferStorage = hasGLVersion(4, 4) || hasGLExtension("GL_ARB_buffer_storage"); GLVertexBufferPrivate::haveSyncFences = hasGLVersion(3, 2) || hasGLExtension("GL_ARB_sync"); } GLVertexBufferPrivate::s_indexBuffer = nullptr; GLVertexBufferPrivate::streamingBuffer = new GLVertexBuffer(GLVertexBuffer::Stream); if (GLVertexBufferPrivate::haveBufferStorage && GLVertexBufferPrivate::haveSyncFences) { if (qgetenv("KWIN_PERSISTENT_VBO") != QByteArrayLiteral("0")) { GLVertexBufferPrivate::streamingBuffer->d->persistent = true; } } } void GLVertexBuffer::cleanup() { delete GLVertexBufferPrivate::s_indexBuffer; GLVertexBufferPrivate::s_indexBuffer = nullptr; GLVertexBufferPrivate::hasMapBufferRange = false; GLVertexBufferPrivate::supportsIndexedQuads = false; delete GLVertexBufferPrivate::streamingBuffer; GLVertexBufferPrivate::streamingBuffer = nullptr; } GLVertexBuffer *GLVertexBuffer::streamingBuffer() { return GLVertexBufferPrivate::streamingBuffer; } } // namespace diff --git a/libkwineffects/kwinglutils.h b/libkwineffects/kwinglutils.h index 9f5290c64..9e1762033 100644 --- a/libkwineffects/kwinglutils.h +++ b/libkwineffects/kwinglutils.h @@ -1,797 +1,794 @@ /******************************************************************** KWin - the KDE window manager This file is part of the KDE project. Copyright (C) 2006-2007 Rivo Laks Copyright (C) 2010, 2011 Martin Gräßlin 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 . *********************************************************************/ #ifndef KWIN_GLUTILS_H #define KWIN_GLUTILS_H // kwin #include #include "kwinglutils_funcs.h" #include "kwingltexture.h" // Qt #include #include /** @addtogroup kwineffects */ /** @{ */ class QVector2D; class QVector3D; class QVector4D; class QMatrix4x4; template< class K, class V > class QHash; namespace KWin { class GLVertexBuffer; class GLVertexBufferPrivate; - -// Initializes GLX function pointers -void KWINGLUTILS_EXPORT initGLX(); // Initializes OpenGL stuff. This includes resolving function pointers as // well as checking for GL version and extensions // Note that GL context has to be created by the time this function is called void KWINGLUTILS_EXPORT initGL(OpenGLPlatformInterface platformInterface); // Initializes EGL function pointers void KWINGLUTILS_EXPORT initEGL(); // Cleans up all resources hold by the GL Context void KWINGLUTILS_EXPORT cleanupGL(); // Number of supported texture units extern KWINGLUTILS_EXPORT int glTextureUnitsCount; bool KWINGLUTILS_EXPORT hasGLVersion(int major, int minor, int release = 0); bool KWINGLUTILS_EXPORT hasEGLVersion(int major, int minor, int release = 0); // use for both OpenGL and GLX extensions bool KWINGLUTILS_EXPORT hasGLExtension(const QByteArray &extension); // detect OpenGL error (add to various places in code to pinpoint the place) bool KWINGLUTILS_EXPORT checkGLError(const char* txt); inline bool KWINGLUTILS_EXPORT isPowerOfTwo(int x) { return ((x & (x - 1)) == 0); } /** * @return power of two integer _greater or equal to_ x. * E.g. nearestPowerOfTwo(513) = nearestPowerOfTwo(800) = 1024 **/ // TODO: Drop for Plasma 6, no longer needed after OpenGL 2.0 int KWINGLUTILS_EXPORT nearestPowerOfTwo(int x); QList KWINGLUTILS_EXPORT eglExtensions(); QList KWINGLUTILS_EXPORT openGLExtensions(); class KWINGLUTILS_EXPORT GLShader { public: enum Flags { NoFlags = 0, ExplicitLinking = (1 << 0) }; GLShader(const QString &vertexfile, const QString &fragmentfile, unsigned int flags = NoFlags); ~GLShader(); bool isValid() const { return mValid; } void bindAttributeLocation(const char *name, int index); void bindFragDataLocation(const char *name, int index); bool link(); int uniformLocation(const char* name); bool setUniform(const char* name, float value); bool setUniform(const char* name, int value); bool setUniform(const char* name, const QVector2D& value); bool setUniform(const char* name, const QVector3D& value); bool setUniform(const char* name, const QVector4D& value); bool setUniform(const char* name, const QMatrix4x4& value); bool setUniform(const char* name, const QColor& color); bool setUniform(int location, float value); bool setUniform(int location, int value); bool setUniform(int location, const QVector2D &value); bool setUniform(int location, const QVector3D &value); bool setUniform(int location, const QVector4D &value); bool setUniform(int location, const QMatrix4x4 &value); bool setUniform(int location, const QColor &value); int attributeLocation(const char* name); bool setAttribute(const char* name, float value); /** * @return The value of the uniform as a matrix * @since 4.7 **/ QMatrix4x4 getUniformMatrix4x4(const char* name); enum MatrixUniform { TextureMatrix = 0, ProjectionMatrix, ModelViewMatrix, ModelViewProjectionMatrix, WindowTransformation, ScreenTransformation, MatrixCount }; enum Vec2Uniform { Offset, Vec2UniformCount }; enum Vec4Uniform { ModulationConstant, Vec4UniformCount }; enum FloatUniform { Saturation, FloatUniformCount }; enum IntUniform { AlphaToOne, ///< @deprecated no longer used ColorCorrectionLookupTextureUnit, IntUniformCount }; enum ColorUniform { Color, ColorUniformCount }; bool setUniform(MatrixUniform uniform, const QMatrix4x4 &matrix); bool setUniform(Vec2Uniform uniform, const QVector2D &value); bool setUniform(Vec4Uniform uniform, const QVector4D &value); bool setUniform(FloatUniform uniform, float value); bool setUniform(IntUniform uniform, int value); bool setUniform(ColorUniform uniform, const QVector4D &value); bool setUniform(ColorUniform uniform, const QColor &value); protected: GLShader(unsigned int flags = NoFlags); bool loadFromFiles(const QString& vertexfile, const QString& fragmentfile); bool load(const QByteArray &vertexSource, const QByteArray &fragmentSource); const QByteArray prepareSource(GLenum shaderType, const QByteArray &sourceCode) const; bool compile(GLuint program, GLenum shaderType, const QByteArray &sourceCode) const; void bind(); void unbind(); void resolveLocations(); private: unsigned int mProgram; bool mValid:1; bool mLocationsResolved:1; bool mExplicitLinking:1; int mMatrixLocation[MatrixCount]; int mVec2Location[Vec2UniformCount]; int mVec4Location[Vec4UniformCount]; int mFloatLocation[FloatUniformCount]; int mIntLocation[IntUniformCount]; int mColorLocation[ColorUniformCount]; static bool sColorCorrect; friend class ColorCorrection; friend class ColorCorrectionPrivate; friend class ShaderManager; }; enum class ShaderTrait { MapTexture = (1 << 0), UniformColor = (1 << 1), Modulate = (1 << 2), AdjustSaturation = (1 << 3), }; Q_DECLARE_FLAGS(ShaderTraits, ShaderTrait) /** * @short Manager for Shaders. * * This class provides some built-in shaders to be used by both compositing scene and effects. * The ShaderManager provides methods to bind a built-in or a custom shader and keeps track of * the shaders which have been bound. When a shader is unbound the previously bound shader * will be rebound. * * @author Martin Gräßlin * @since 4.7 **/ class KWINGLUTILS_EXPORT ShaderManager { public: /** * Returns a shader with the given traits, creating it if necessary. */ GLShader *shader(ShaderTraits traits); /** * @return The currently bound shader or @c null if no shader is bound. **/ GLShader *getBoundShader() const; /** * @return @c true if a shader is bound, @c false otherwise **/ bool isShaderBound() const; /** * Is @c true if the environment variable KWIN_GL_DEBUG is set to 1. * In that case shaders are compiled with KWIN_SHADER_DEBUG defined. * @returns @c true if shaders are compiled with debug information * @since 4.8 **/ bool isShaderDebug() const; /** * Pushes the current shader onto the stack and binds a shader * with the given traits. */ GLShader *pushShader(ShaderTraits traits); /** * Binds the @p shader. * To unbind the shader use @link popShader. A previous bound shader will be rebound. * To bind a built-in shader use the more specific method. * @param shader The shader to be bound * @see popShader **/ void pushShader(GLShader *shader); /** * Unbinds the currently bound shader and rebinds a previous stored shader. * If there is no previous shader, no shader will be rebound. * It is not safe to call this method if there is no bound shader. * @see pushShader * @see getBoundShader **/ void popShader(); /** * Creates a GLShader with the specified sources. * The difference to GLShader is that it does not need to be loaded from files. * @param vertexSource The source code of the vertex shader * @param fragmentSource The source code of the fragment shader. * @return The created shader **/ GLShader *loadShaderFromCode(const QByteArray &vertexSource, const QByteArray &fragmentSource); /** * Creates a custom shader with the given @p traits and custom @p vertexSource and or @p fragmentSource. * If the @p vertexSource is empty a vertex shader with the given @p traits is generated. * If it is not empty the @p vertexSource is used as the source for the vertex shader. * * The same applies for argument @p fragmentSource just for the fragment shader. * * So if both @p vertesSource and @p fragmentSource are provided the @p traits are ignored. * If neither are provided a new shader following the @p traits is generated. * * @param traits The shader traits for generating the shader * @param vertesSource optional vertex shader source code to be used instead of shader traits * @param fragmentSource optional fragment shader source code to be used instead of shader traits * @return new generated shader * @since 5.6 **/ GLShader *generateCustomShader(ShaderTraits traits, const QByteArray &vertexSource = QByteArray(), const QByteArray &fragmentSource = QByteArray()); /** * Creates a custom shader with the given @p traits and custom @p vertexFile and or @p fragmentFile. * The file names specified in @p vertexFile and @p fragmentFile are relative paths to the shaders * resource file shipped together with KWin. This means this method can only be used for built-in * effects, for 3rd party effects @link {generateCustomShader} should be used. * * If the @p vertexFile is empty a vertex shader with the given @p traits is generated. * If it is not empty the @p vertexFile is used as the source for the vertex shader. * * The same applies for argument @p fragmentFile just for the fragment shader. * * So if both @p vertexFile and @p fragmentFile are provided the @p traits are ignored. * If neither are provided a new shader following the @p traits is generated. * * @param traits The shader traits for generating the shader * @param vertexFile optional vertex shader source code to be used instead of shader traits * @param fragmentFile optional fragment shader source code to be used instead of shader traits * @return new generated shader * @see generateCustomShader * @since 5.6 **/ GLShader *generateShaderFromResources(ShaderTraits traits, const QString &vertexFile = QString(), const QString &fragmentFile = QString()); /** * Compiles and tests the dynamically generated shaders. * Returns true if successful and false otherwise. */ bool selfTest(); /** * @return a pointer to the ShaderManager instance **/ static ShaderManager *instance(); /** * @internal **/ static void cleanup(); private: ShaderManager(); ~ShaderManager(); void bindFragDataLocations(GLShader *shader); void bindAttributeLocations(GLShader *shader) const; QByteArray generateVertexSource(ShaderTraits traits) const; QByteArray generateFragmentSource(ShaderTraits traits) const; GLShader *generateShader(ShaderTraits traits); QStack m_boundShaders; QHash m_shaderHash; bool m_debug; QString m_resourcePath; static ShaderManager *s_shaderManager; }; /** * An helper class to push a Shader on to ShaderManager's stack and ensuring that the Shader * gets popped again from the stack automatically once the object goes out of life. * * How to use: * @code * { * GLShader *myCustomShaderIWantToPush; * ShaderBinder binder(myCustomShaderIWantToPush); * // do stuff with the shader being pushed on the stack * } * // here the Shader is automatically popped as helper does no longer exist. * @endcode * * @since 4.10 **/ class KWINGLUTILS_EXPORT ShaderBinder { public: /** * @brief Pushes the given @p shader to the ShaderManager's stack. * * @param shader The Shader to push on the stack * @see ShaderManager::pushShader **/ explicit ShaderBinder(GLShader *shader); /** * @brief Pushes the Shader with the given @p traits to the ShaderManager's stack. * * @param traits The traits describing the shader * @see ShaderManager::pushShader * @since 5.6 **/ explicit ShaderBinder(ShaderTraits traits); ~ShaderBinder(); /** * @return The Shader pushed to the Stack. **/ GLShader *shader(); private: GLShader *m_shader; }; inline ShaderBinder::ShaderBinder(GLShader *shader) : m_shader(shader) { ShaderManager::instance()->pushShader(shader); } inline ShaderBinder::ShaderBinder(ShaderTraits traits) : m_shader(nullptr) { m_shader = ShaderManager::instance()->pushShader(traits); } inline ShaderBinder::~ShaderBinder() { ShaderManager::instance()->popShader(); } inline GLShader* ShaderBinder::shader() { return m_shader; } /** * @short Render target object * * Render target object enables you to render onto a texture. This texture can * later be used to e.g. do post-processing of the scene. * * @author Rivo Laks **/ class KWINGLUTILS_EXPORT GLRenderTarget { public: /** * Constructs a GLRenderTarget * @param color texture where the scene will be rendered onto **/ explicit GLRenderTarget(const GLTexture& color); ~GLRenderTarget(); /** * Enables this render target. * All OpenGL commands from now on affect this render target until the * @ref disable method is called **/ bool enable(); /** * Disables this render target, activating whichever target was active * when @ref enable was called. **/ bool disable(); /** * Sets the target texture * @param target texture where the scene will be rendered on * @since 4.8 **/ void attachTexture(const GLTexture& target); bool valid() const { return mValid; } static void initStatic(); static bool supported() { return sSupported; } static void pushRenderTarget(GLRenderTarget *target); static GLRenderTarget *popRenderTarget(); static bool isRenderTargetBound(); /** * Whether the GL_EXT_framebuffer_blit extension is supported. * This functionality is not available in OpenGL ES 2.0. * * @returns whether framebuffer blitting is supported. * @since 4.8 **/ static bool blitSupported(); /** * Blits the content of the current draw framebuffer into the texture attached to this FBO. * * Be aware that framebuffer blitting may not be supported on all hardware. Use @link blitSupported to check whether * it is supported. * @param source Geometry in screen coordinates which should be blitted, if not specified complete framebuffer is used * @param destination Geometry in attached texture, if not specified complete texture is used as destination * @param filter The filter to use if blitted content needs to be scaled. * @see blitSupported * @since 4.8 **/ void blitFromFramebuffer(const QRect &source = QRect(), const QRect &destination = QRect(), GLenum filter = GL_LINEAR); /** * Sets the virtual screen size to @p s. * @since 5.2 **/ static void setVirtualScreenSize(const QSize &s) { s_virtualScreenSize = s; } /** * Sets the virtual screen geometry to @p g. * This is the geometry of the OpenGL window currently being rendered to * in the virtual geometry space the rendering geometries use. * @see virtualScreenGeometry * @since 5.9 **/ static void setVirtualScreenGeometry(const QRect &g) { s_virtualScreenGeometry = g; } /** * The geometry of the OpenGL window currently being rendered to * in the virtual geometry space the rendering system uses. * @see setVirtualScreenGeometry * @since 5.9 **/ static QRect virtualScreenGeometry() { return s_virtualScreenGeometry; } protected: void initFBO(); private: friend void KWin::cleanupGL(); static void cleanup(); static bool sSupported; static bool s_blitSupported; static QStack s_renderTargets; static QSize s_virtualScreenSize; static QRect s_virtualScreenGeometry; GLTexture mTexture; bool mValid; GLuint mFramebuffer; }; enum VertexAttributeType { VA_Position = 0, VA_TexCoord = 1, VertexAttributeCount = 2 }; /** * Describes the format of a vertex attribute stored in a buffer object. * * The attribute format consists of the attribute index, the number of * vector components, the data type, and the offset of the first element * relative to the start of the vertex data. */ struct GLVertexAttrib { int index; /** The attribute index */ int size; /** The number of components [1..4] */ GLenum type; /** The type (e.g. GL_FLOAT) */ int relativeOffset; /** The relative offset of the attribute */ }; /** * @short Vertex Buffer Object * * This is a short helper class to use vertex buffer objects (VBO). A VBO can be used to buffer * vertex data and to store them on graphics memory. It is the only allowed way to pass vertex * data to the GPU in OpenGL ES 2 and OpenGL 3 with forward compatible mode. * * If VBOs are not supported on the used OpenGL profile this class falls back to legacy * rendering using client arrays. Therefore this class should always be used for rendering geometries. * * @author Martin Gräßlin * @since 4.6 */ class KWINGLUTILS_EXPORT GLVertexBuffer { public: /** * Enum to define how often the vertex data in the buffer object changes. */ enum UsageHint { Dynamic, ///< frequent changes, but used several times for rendering Static, ///< No changes to data Stream ///< Data only used once for rendering, updated very frequently }; explicit GLVertexBuffer(UsageHint hint); ~GLVertexBuffer(); /** * Specifies how interleaved vertex attributes are laid out in * the buffer object. * * Note that the attributes and the stride should be 32 bit aligned * or a performance penalty may be incurred. * * For some hardware the optimal stride is a multiple of 32 bytes. * * Example: * * struct Vertex { * QVector3D position; * QVector2D texcoord; * }; * * const GLVertexAttrib attribs[] = { * { VA_Position, 3, GL_FLOAT, offsetof(Vertex, position) }, * { VA_TexCoord, 2, GL_FLOAT, offsetof(Vertex, texcoord) } * }; * * Vertex vertices[6]; * vbo->setAttribLayout(attribs, 2, sizeof(Vertex)); * vbo->setData(vertices, sizeof(vertices)); */ void setAttribLayout(const GLVertexAttrib *attribs, int count, int stride); /** * Uploads data into the buffer object's data store. */ void setData(const void *data, size_t sizeInBytes); /** * Sets the number of vertices that will be drawn by the render() method. */ void setVertexCount(int count); /** * Sets the vertex data. * @param numberVertices The number of vertices in the arrays * @param dim The dimension of the vertices: 2 for x/y, 3 for x/y/z * @param vertices The vertices, size must equal @a numberVertices * @a dim * @param texcoords The texture coordinates for each vertex. * Size must equal 2 * @a numberVertices. */ void setData(int numberVertices, int dim, const float* vertices, const float* texcoords); /** * Maps an unused range of the data store into the client's address space. * * The data store will be reallocated if it is smaller than the given size. * * The buffer object is mapped for writing, not reading. Attempts to read from * the mapped buffer range may result in system errors, including program * termination. The data in the mapped region is undefined until it has been * written to. If subsequent GL calls access unwritten memory, the results are * undefined and system errors, including program termination, may occur. * * No GL calls that access the buffer object must be made while the buffer * object is mapped. The returned pointer must not be passed as a parameter * value to any GL function. * * It is assumed that the GL_ARRAY_BUFFER_BINDING will not be changed while * the buffer object is mapped. */ GLvoid *map(size_t size); /** * Flushes the mapped buffer range and unmaps the buffer. */ void unmap(); /** * Binds the vertex arrays to the context. */ void bindArrays(); /** * Disables the vertex arrays. */ void unbindArrays(); /** * Draws count vertices beginning with first. */ void draw(GLenum primitiveMode, int first, int count); /** * Draws count vertices beginning with first. */ void draw(const QRegion ®ion, GLenum primitiveMode, int first, int count, bool hardwareClipping = false); /** * Renders the vertex data in given @a primitiveMode. * Please refer to OpenGL documentation of glDrawArrays or glDrawElements for allowed * values for @a primitiveMode. Best is to use GL_TRIANGLES or similar to be future * compatible. */ void render(GLenum primitiveMode); /** * Same as above restricting painting to @a region if @a hardwareClipping is true. * It's within the caller's responsibility to enable GL_SCISSOR_TEST. */ void render(const QRegion& region, GLenum primitiveMode, bool hardwareClipping = false); /** * Sets the color the geometry will be rendered with. * For legacy rendering glColor is used before rendering the geometry. * For core shader a uniform "geometryColor" is expected and is set. * @param color The color to render the geometry * @param enableColor Whether the geometry should be rendered with a color or not * @see setUseColor * @see isUseColor * @since 4.7 **/ void setColor(const QColor& color, bool enableColor = true); /** * @return @c true if geometry will be painted with a color, @c false otherwise * @see setUseColor * @see setColor * @since 4.7 **/ bool isUseColor() const; /** * Enables/Disables rendering the geometry with a color. * If no color is set an opaque, black color is used. * @param enable Enable/Disable rendering with color * @see isUseColor * @see setColor * @since 4.7 **/ void setUseColor(bool enable); /** * Resets the instance to default values. * Useful for shared buffers. * @since 4.7 **/ void reset(); /** * Notifies the vertex buffer that we are done painting the frame. * * @internal */ void endOfFrame(); /** * Notifies the vertex buffer that we have posted the frame. * * @internal */ void framePosted(); /** * @internal */ static void initStatic(); /** * @internal */ static void cleanup(); /** * Returns true if indexed quad mode is supported, and false otherwise. */ static bool supportsIndexedQuads(); /** * @return A shared VBO for streaming data * @since 4.7 **/ static GLVertexBuffer *streamingBuffer(); /** * Sets the virtual screen geometry to @p g. * This is the geometry of the OpenGL window currently being rendered to * in the virtual geometry space the rendering geometries use. * @since 5.9 **/ static void setVirtualScreenGeometry(const QRect &g) { s_virtualScreenGeometry = g; } private: GLVertexBufferPrivate* const d; static QRect s_virtualScreenGeometry; }; } // namespace Q_DECLARE_OPERATORS_FOR_FLAGS(KWin::ShaderTraits) /** @} */ #endif diff --git a/libkwineffects/kwinglutils_funcs.cpp b/libkwineffects/kwinglutils_funcs.cpp index 23a29367b..c8783fa0f 100644 --- a/libkwineffects/kwinglutils_funcs.cpp +++ b/libkwineffects/kwinglutils_funcs.cpp @@ -1,145 +1,134 @@ /******************************************************************** KWin - the KDE window manager This file is part of the KDE project. Copyright (C) 2007 Rivo Laks 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 . *********************************************************************/ #include "kwinglutils.h" #include "kwinglplatform.h" #include #if HAVE_EPOXY_GLX #include #endif // Resolves given function, using getProcAddress #define GL_RESOLVE( function ) \ if (platformInterface == GlxPlatformInterface) \ function = (function ## _func)getProcAddress( #function ); \ else if (platformInterface == EglPlatformInterface) \ function = (function ## _func)eglGetProcAddress( #function ); // Same as above but tries to use function "symbolName" // Useful when functionality is defined in an extension with a different name #define GL_RESOLVE_WITH_EXT( function, symbolName ) \ if (platformInterface == GlxPlatformInterface) { \ function = (function ## _func)getProcAddress( #symbolName ); \ } else if (platformInterface == EglPlatformInterface) { \ function = (function ## _func)eglGetProcAddress( #symbolName ); \ } namespace KWin { static GLenum GetGraphicsResetStatus(); static void ReadnPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLsizei bufSize, GLvoid *data); static void GetnUniformfv(GLuint program, GLint location, GLsizei bufSize, GLfloat *params); -// GL_MESA_swap_control -glXSwapIntervalMESA_func glXSwapIntervalMESA; - // GL_ARB_robustness / GL_EXT_robustness glGetGraphicsResetStatus_func glGetGraphicsResetStatus; glReadnPixels_func glReadnPixels; glGetnUniformfv_func glGetnUniformfv; typedef void (*glXFuncPtr)(); static glXFuncPtr getProcAddress(const char* name) { glXFuncPtr ret = nullptr; #if HAVE_EPOXY_GLX ret = glXGetProcAddress((const GLubyte*) name); #endif if (ret == nullptr) ret = (glXFuncPtr) dlsym(RTLD_DEFAULT, name); return ret; } -void glxResolveFunctions() -{ - if (hasGLExtension(QByteArrayLiteral("GLX_MESA_swap_control"))) - glXSwapIntervalMESA = (glXSwapIntervalMESA_func) getProcAddress("glXSwapIntervalMESA"); - else - glXSwapIntervalMESA = nullptr; -} - void eglResolveFunctions() { } void glResolveFunctions(OpenGLPlatformInterface platformInterface) { const bool haveArbRobustness = hasGLExtension(QByteArrayLiteral("GL_ARB_robustness")); const bool haveExtRobustness = hasGLExtension(QByteArrayLiteral("GL_EXT_robustness")); bool robustContext = false; if (GLPlatform::instance()->isGLES()) { if (haveExtRobustness) { GLint value = 0; glGetIntegerv(GL_CONTEXT_ROBUST_ACCESS_EXT, &value); robustContext = (value != 0); } } else { if (haveArbRobustness) { if (hasGLVersion(3, 0)) { GLint value = 0; glGetIntegerv(GL_CONTEXT_FLAGS, &value); if (value & GL_CONTEXT_FLAG_ROBUST_ACCESS_BIT_ARB) { robustContext = true; } } else { robustContext = true; } } } if (robustContext && haveArbRobustness) { // See http://www.opengl.org/registry/specs/ARB/robustness.txt GL_RESOLVE_WITH_EXT(glGetGraphicsResetStatus, glGetGraphicsResetStatusARB); GL_RESOLVE_WITH_EXT(glReadnPixels, glReadnPixelsARB); GL_RESOLVE_WITH_EXT(glGetnUniformfv, glGetnUniformfvARB); } else if (robustContext && haveExtRobustness) { // See http://www.khronos.org/registry/gles/extensions/EXT/EXT_robustness.txt glGetGraphicsResetStatus = (glGetGraphicsResetStatus_func) eglGetProcAddress("glGetGraphicsResetStatusEXT"); glReadnPixels = (glReadnPixels_func) eglGetProcAddress("glReadnPixelsEXT"); glGetnUniformfv = (glGetnUniformfv_func) eglGetProcAddress("glGetnUniformfvEXT"); } else { glGetGraphicsResetStatus = KWin::GetGraphicsResetStatus; glReadnPixels = KWin::ReadnPixels; glGetnUniformfv = KWin::GetnUniformfv; } } static GLenum GetGraphicsResetStatus() { return GL_NO_ERROR; } static void ReadnPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLsizei bufSize, GLvoid *data) { Q_UNUSED(bufSize) glReadPixels(x, y, width, height, format, type, data); } static void GetnUniformfv(GLuint program, GLint location, GLsizei bufSize, GLfloat *params) { Q_UNUSED(bufSize) glGetUniformfv(program, location, params); } } // namespace diff --git a/libkwineffects/kwinglutils_funcs.h b/libkwineffects/kwinglutils_funcs.h index 4b60a46ab..b9787d3d4 100644 --- a/libkwineffects/kwinglutils_funcs.h +++ b/libkwineffects/kwinglutils_funcs.h @@ -1,72 +1,66 @@ /******************************************************************** KWin - the KDE window manager This file is part of the KDE project. Copyright (C) 2007 Rivo Laks 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 . *********************************************************************/ #ifndef KWIN_GLUTILS_FUNCS_H #define KWIN_GLUTILS_FUNCS_H #include #include #include #include #include #include // qopengl.h declares GLdouble as a typedef of float when Qt is built // with GLES support. This conflicts with the epoxy/gl_generated.h // declaration, so we have to prevent the Qt header from being #included. #define QOPENGL_H #ifndef QOPENGLF_APIENTRY #define QOPENGLF_APIENTRY GLAPIENTRY #endif #ifndef QOPENGLF_APIENTRYP #define QOPENGLF_APIENTRYP GLAPIENTRYP #endif namespace KWin { -void KWINGLUTILS_EXPORT glxResolveFunctions(); - void KWINGLUTILS_EXPORT eglResolveFunctions(); void KWINGLUTILS_EXPORT glResolveFunctions(OpenGLPlatformInterface platformInterface); -// GLX_MESA_swap_interval -using glXSwapIntervalMESA_func = int (*)(unsigned int interval); -extern KWINGLUTILS_EXPORT glXSwapIntervalMESA_func glXSwapIntervalMESA; - // GL_ARB_robustness / GL_EXT_robustness using glGetGraphicsResetStatus_func = GLenum (*)(); using glReadnPixels_func = void (*)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLsizei bufSize, GLvoid *data); using glGetnUniformfv_func = void (*)(GLuint program, GLint location, GLsizei bufSize, GLfloat *params); extern KWINGLUTILS_EXPORT glGetGraphicsResetStatus_func glGetGraphicsResetStatus; extern KWINGLUTILS_EXPORT glReadnPixels_func glReadnPixels; extern KWINGLUTILS_EXPORT glGetnUniformfv_func glGetnUniformfv; } // namespace #endif // KWIN_GLUTILS_FUNCS_H diff --git a/plugins/platforms/x11/standalone/glxbackend.cpp b/plugins/platforms/x11/standalone/glxbackend.cpp index 58fd4a9dd..43bdedcdc 100644 --- a/plugins/platforms/x11/standalone/glxbackend.cpp +++ b/plugins/platforms/x11/standalone/glxbackend.cpp @@ -1,894 +1,914 @@ /******************************************************************** KWin - the KDE window manager This file is part of the KDE project. Copyright (C) 2006 Lubos Lunak Copyright (C) 2012 Martin Gräßlin Based on glcompmgr code by Felix Bellaby. Using code from Compiz and Beryl. 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 . *********************************************************************/ // own #include "glxbackend.h" #include "logging.h" // kwin #include "options.h" #include "overlaywindow.h" #include "composite.h" #include "screens.h" #include "xcbutils.h" // kwin libs #include #include // Qt #include #include // system #include #include #include +#include #ifndef XCB_GLX_BUFFER_SWAP_COMPLETE #define XCB_GLX_BUFFER_SWAP_COMPLETE 1 typedef struct xcb_glx_buffer_swap_complete_event_t { uint8_t response_type; /**< */ uint8_t pad0; /**< */ uint16_t sequence; /**< */ uint16_t event_type; /**< */ uint8_t pad1[2]; /**< */ xcb_glx_drawable_t drawable; /**< */ uint32_t ust_hi; /**< */ uint32_t ust_lo; /**< */ uint32_t msc_hi; /**< */ uint32_t msc_lo; /**< */ uint32_t sbc; /**< */ } xcb_glx_buffer_swap_complete_event_t; #endif #include #if __cplusplus <= 201103L namespace std { // C++-14 template unique_ptr make_unique(Args&&... args) { return unique_ptr(new T(std::forward(args)...)); } } #endif namespace KWin { SwapEventFilter::SwapEventFilter(xcb_drawable_t drawable, xcb_glx_drawable_t glxDrawable) : X11EventFilter(Xcb::Extensions::self()->glxEventBase() + XCB_GLX_BUFFER_SWAP_COMPLETE), m_drawable(drawable), m_glxDrawable(glxDrawable) { } bool SwapEventFilter::event(xcb_generic_event_t *event) { xcb_glx_buffer_swap_complete_event_t *ev = reinterpret_cast(event); // The drawable field is the X drawable when the event was synthesized // by a WireToEvent handler, and the GLX drawable when the event was // received over the wire if (ev->drawable == m_drawable || ev->drawable == m_glxDrawable) { Compositor::self()->bufferSwapComplete(); return true; } return false; } // ----------------------------------------------------------------------- GlxBackend::GlxBackend() : OpenGLBackend() , m_overlayWindow(new OverlayWindow()) , window(None) , fbconfig(NULL) , glxWindow(None) , ctx(nullptr) , m_bufferAge(0) , haveSwapInterval(false) { } static bool gs_tripleBufferUndetected = true; static bool gs_tripleBufferNeedsDetection = false; GlxBackend::~GlxBackend() { if (isFailed()) { m_overlayWindow->destroy(); } // TODO: cleanup in error case // do cleanup after initBuffer() cleanupGL(); doneCurrent(); gs_tripleBufferUndetected = true; gs_tripleBufferNeedsDetection = false; if (ctx) glXDestroyContext(display(), ctx); if (glxWindow) glXDestroyWindow(display(), glxWindow); if (window) XDestroyWindow(display(), window); qDeleteAll(m_fbconfigHash); m_fbconfigHash.clear(); overlayWindow()->destroy(); delete m_overlayWindow; } -void GlxBackend::init() +typedef void (*glXFuncPtr)(); + +static glXFuncPtr getProcAddress(const char* name) { - initGLX(); + glXFuncPtr ret = nullptr; +#if HAVE_EPOXY_GLX + ret = glXGetProcAddress((const GLubyte*) name); +#endif + if (ret == nullptr) + ret = (glXFuncPtr) dlsym(RTLD_DEFAULT, name); + return ret; +} +glXSwapIntervalMESA_func glXSwapIntervalMESA; +void GlxBackend::init() +{ // Require at least GLX 1.3 if (!checkVersion()) { setFailed(QStringLiteral("Requires at least GLX 1.3")); return; } initExtensions(); + // resolve glXSwapIntervalMESA if available + if (hasExtension(QByteArrayLiteral("GLX_MESA_swap_control"))) { + glXSwapIntervalMESA = (glXSwapIntervalMESA_func) getProcAddress("glXSwapIntervalMESA"); + } else { + glXSwapIntervalMESA = nullptr; + } + initVisualDepthHashTable(); if (!initBuffer()) { setFailed(QStringLiteral("Could not initialize the buffer")); return; } if (!initRenderingContext()) { setFailed(QStringLiteral("Could not initialize rendering context")); return; } // Initialize OpenGL GLPlatform *glPlatform = GLPlatform::instance(); glPlatform->detect(GlxPlatformInterface); options->setGlPreferBufferSwap(options->glPreferBufferSwap()); // resolve autosetting if (options->glPreferBufferSwap() == Options::AutoSwapStrategy) options->setGlPreferBufferSwap('e'); // for unknown drivers - should not happen glPlatform->printResults(); initGL(GlxPlatformInterface); // Check whether certain features are supported m_haveMESACopySubBuffer = hasExtension(QByteArrayLiteral("GLX_MESA_copy_sub_buffer")); m_haveMESASwapControl = hasExtension(QByteArrayLiteral("GLX_MESA_swap_control")); m_haveEXTSwapControl = hasExtension(QByteArrayLiteral("GLX_EXT_swap_control")); m_haveSGISwapControl = hasExtension(QByteArrayLiteral("GLX_SGI_swap_control")); // only enable Intel swap event if env variable is set, see BUG 342582 m_haveINTELSwapEvent = hasExtension(QByteArrayLiteral("GLX_INTEL_swap_event")) && qgetenv("KWIN_USE_INTEL_SWAP_EVENT") == QByteArrayLiteral("1"); if (m_haveINTELSwapEvent) { m_swapEventFilter = std::make_unique(window, glxWindow); glXSelectEvent(display(), glxWindow, GLX_BUFFER_SWAP_COMPLETE_INTEL_MASK); } haveSwapInterval = m_haveMESASwapControl || m_haveEXTSwapControl || m_haveSGISwapControl; setSupportsBufferAge(false); if (hasExtension(QByteArrayLiteral("GLX_EXT_buffer_age"))) { const QByteArray useBufferAge = qgetenv("KWIN_USE_BUFFER_AGE"); if (useBufferAge != "0") setSupportsBufferAge(true); } setSyncsToVBlank(false); setBlocksForRetrace(false); haveWaitSync = false; gs_tripleBufferNeedsDetection = false; m_swapProfiler.init(); const bool wantSync = options->glPreferBufferSwap() != Options::NoSwapEncourage; if (wantSync && glXIsDirect(display(), ctx)) { if (haveSwapInterval) { // glXSwapInterval is preferred being more reliable setSwapInterval(1); setSyncsToVBlank(true); const QByteArray tripleBuffer = qgetenv("KWIN_TRIPLE_BUFFER"); if (!tripleBuffer.isEmpty()) { setBlocksForRetrace(qstrcmp(tripleBuffer, "0") == 0); gs_tripleBufferUndetected = false; } gs_tripleBufferNeedsDetection = gs_tripleBufferUndetected; } else if (hasExtension(QByteArrayLiteral("GLX_SGI_video_sync"))) { unsigned int sync; if (glXGetVideoSyncSGI(&sync) == 0 && glXWaitVideoSyncSGI(1, 0, &sync) == 0) { setSyncsToVBlank(true); setBlocksForRetrace(true); haveWaitSync = true; } else qCWarning(KWIN_X11STANDALONE) << "NO VSYNC! glXSwapInterval is not supported, glXWaitVideoSync is supported but broken"; } else qCWarning(KWIN_X11STANDALONE) << "NO VSYNC! neither glSwapInterval nor glXWaitVideoSync are supported"; } else { // disable v-sync (if possible) setSwapInterval(0); } if (glPlatform->isVirtualBox()) { // VirtualBox does not support glxQueryDrawable // this should actually be in kwinglutils_funcs, but QueryDrawable seems not to be provided by an extension // and the GLPlatform has not been initialized at the moment when initGLX() is called. glXQueryDrawable = NULL; } setIsDirectRendering(bool(glXIsDirect(display(), ctx))); qCDebug(KWIN_X11STANDALONE) << "Direct rendering:" << isDirectRendering(); } bool GlxBackend::checkVersion() { int major, minor; glXQueryVersion(display(), &major, &minor); return kVersionNumber(major, minor) >= kVersionNumber(1, 3); } void GlxBackend::initExtensions() { const QByteArray string = (const char *) glXQueryExtensionsString(display(), QX11Info::appScreen()); setExtensions(string.split(' ')); } bool GlxBackend::initRenderingContext() { const bool direct = true; // Use glXCreateContextAttribsARB() when it's available if (hasExtension(QByteArrayLiteral("GLX_ARB_create_context"))) { const int attribs_31_core_robustness[] = { GLX_CONTEXT_MAJOR_VERSION_ARB, 3, GLX_CONTEXT_MINOR_VERSION_ARB, 1, GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_ROBUST_ACCESS_BIT_ARB, GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB, GLX_LOSE_CONTEXT_ON_RESET_ARB, 0 }; const int attribs_31_core[] = { GLX_CONTEXT_MAJOR_VERSION_ARB, 3, GLX_CONTEXT_MINOR_VERSION_ARB, 1, 0 }; const int attribs_legacy_robustness[] = { GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_ROBUST_ACCESS_BIT_ARB, GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB, GLX_LOSE_CONTEXT_ON_RESET_ARB, 0 }; const int attribs_legacy[] = { GLX_CONTEXT_MAJOR_VERSION_ARB, 1, GLX_CONTEXT_MINOR_VERSION_ARB, 2, 0 }; const bool have_robustness = hasExtension(QByteArrayLiteral("GLX_ARB_create_context_robustness")); // Try to create a 3.1 context first if (options->glCoreProfile()) { if (have_robustness) ctx = glXCreateContextAttribsARB(display(), fbconfig, 0, direct, attribs_31_core_robustness); if (!ctx) ctx = glXCreateContextAttribsARB(display(), fbconfig, 0, direct, attribs_31_core); } if (!ctx && have_robustness) ctx = glXCreateContextAttribsARB(display(), fbconfig, 0, direct, attribs_legacy_robustness); if (!ctx) ctx = glXCreateContextAttribsARB(display(), fbconfig, 0, direct, attribs_legacy); } if (!ctx) ctx = glXCreateNewContext(display(), fbconfig, GLX_RGBA_TYPE, NULL, direct); if (!ctx) { qCDebug(KWIN_X11STANDALONE) << "Failed to create an OpenGL context."; return false; } if (!glXMakeCurrent(display(), glxWindow, ctx)) { qCDebug(KWIN_X11STANDALONE) << "Failed to make the OpenGL context current."; glXDestroyContext(display(), ctx); ctx = 0; return false; } return true; } bool GlxBackend::initBuffer() { if (!initFbConfig()) return false; if (overlayWindow()->create()) { xcb_connection_t * const c = connection(); // Try to create double-buffered window in the overlay xcb_visualid_t visual; glXGetFBConfigAttrib(display(), fbconfig, GLX_VISUAL_ID, (int *) &visual); if (!visual) { qCCritical(KWIN_X11STANDALONE) << "The GLXFBConfig does not have an associated X visual"; return false; } xcb_colormap_t colormap = xcb_generate_id(c); xcb_create_colormap(c, false, colormap, rootWindow(), visual); const QSize size = screens()->size(); window = xcb_generate_id(c); xcb_create_window(c, visualDepth(visual), window, overlayWindow()->window(), 0, 0, size.width(), size.height(), 0, XCB_WINDOW_CLASS_INPUT_OUTPUT, visual, XCB_CW_COLORMAP, &colormap); glxWindow = glXCreateWindow(display(), fbconfig, window, NULL); overlayWindow()->setup(window); } else { qCCritical(KWIN_X11STANDALONE) << "Failed to create overlay window"; return false; } return true; } bool GlxBackend::initFbConfig() { const int attribs[] = { GLX_RENDER_TYPE, GLX_RGBA_BIT, GLX_DRAWABLE_TYPE, GLX_WINDOW_BIT, GLX_RED_SIZE, 1, GLX_GREEN_SIZE, 1, GLX_BLUE_SIZE, 1, GLX_ALPHA_SIZE, 0, GLX_DEPTH_SIZE, 0, GLX_STENCIL_SIZE, 0, GLX_CONFIG_CAVEAT, GLX_NONE, GLX_DOUBLEBUFFER, true, 0 }; // Try to find a double buffered configuration int count = 0; GLXFBConfig *configs = glXChooseFBConfig(display(), DefaultScreen(display()), attribs, &count); struct FBConfig { GLXFBConfig config; int depth; int stencil; }; std::deque candidates; for (int i = 0; i < count; i++) { int depth, stencil; glXGetFBConfigAttrib(display(), configs[i], GLX_DEPTH_SIZE, &depth); glXGetFBConfigAttrib(display(), configs[i], GLX_STENCIL_SIZE, &stencil); candidates.emplace_back(FBConfig{configs[i], depth, stencil}); } if (count > 0) XFree(configs); std::stable_sort(candidates.begin(), candidates.end(), [](const FBConfig &left, const FBConfig &right) { if (left.depth < right.depth) return true; if (left.stencil < right.stencil) return true; return false; }); if (candidates.size() > 0) { fbconfig = candidates.front().config; int fbconfig_id, visual_id, red, green, blue, alpha, depth, stencil; glXGetFBConfigAttrib(display(), fbconfig, GLX_FBCONFIG_ID, &fbconfig_id); glXGetFBConfigAttrib(display(), fbconfig, GLX_VISUAL_ID, &visual_id); glXGetFBConfigAttrib(display(), fbconfig, GLX_RED_SIZE, &red); glXGetFBConfigAttrib(display(), fbconfig, GLX_GREEN_SIZE, &green); glXGetFBConfigAttrib(display(), fbconfig, GLX_BLUE_SIZE, &blue); glXGetFBConfigAttrib(display(), fbconfig, GLX_ALPHA_SIZE, &alpha); glXGetFBConfigAttrib(display(), fbconfig, GLX_DEPTH_SIZE, &depth); glXGetFBConfigAttrib(display(), fbconfig, GLX_STENCIL_SIZE, &stencil); qCDebug(KWIN_X11STANDALONE, "Choosing GLXFBConfig %#x X visual %#x depth %d RGBA %d:%d:%d:%d ZS %d:%d", fbconfig_id, visual_id, visualDepth(visual_id), red, green, blue, alpha, depth, stencil); } if (fbconfig == nullptr) { qCCritical(KWIN_X11STANDALONE) << "Failed to find a usable framebuffer configuration"; return false; } return true; } void GlxBackend::initVisualDepthHashTable() { const xcb_setup_t *setup = xcb_get_setup(connection()); for (auto screen = xcb_setup_roots_iterator(setup); screen.rem; xcb_screen_next(&screen)) { for (auto depth = xcb_screen_allowed_depths_iterator(screen.data); depth.rem; xcb_depth_next(&depth)) { const int len = xcb_depth_visuals_length(depth.data); const xcb_visualtype_t *visuals = xcb_depth_visuals(depth.data); for (int i = 0; i < len; i++) m_visualDepthHash.insert(visuals[i].visual_id, depth.data->depth); } } } int GlxBackend::visualDepth(xcb_visualid_t visual) const { return m_visualDepthHash.value(visual); } FBConfigInfo *GlxBackend::infoForVisual(xcb_visualid_t visual) { auto it = m_fbconfigHash.constFind(visual); if (it != m_fbconfigHash.constEnd()) { return it.value(); } FBConfigInfo *info = new FBConfigInfo; m_fbconfigHash.insert(visual, info); info->fbconfig = nullptr; info->bind_texture_format = 0; info->texture_targets = 0; info->y_inverted = 0; info->mipmap = 0; const xcb_render_pictformat_t format = XRenderUtils::findPictFormat(visual); const xcb_render_directformat_t *direct = XRenderUtils::findPictFormatInfo(format); if (!direct) { qCCritical(KWIN_X11STANDALONE).nospace() << "Could not find a picture format for visual 0x" << hex << visual; return info; } const int red_bits = bitCount(direct->red_mask); const int green_bits = bitCount(direct->green_mask); const int blue_bits = bitCount(direct->blue_mask); const int alpha_bits = bitCount(direct->alpha_mask); const int depth = visualDepth(visual); const auto rgb_sizes = std::tie(red_bits, green_bits, blue_bits); const int attribs[] = { GLX_RENDER_TYPE, GLX_RGBA_BIT, GLX_DRAWABLE_TYPE, GLX_WINDOW_BIT | GLX_PIXMAP_BIT, GLX_X_VISUAL_TYPE, GLX_TRUE_COLOR, GLX_X_RENDERABLE, True, GLX_CONFIG_CAVEAT, int(GLX_DONT_CARE), // The ARGB32 visual is marked non-conformant in Catalyst GLX_BUFFER_SIZE, red_bits + green_bits + blue_bits + alpha_bits, GLX_RED_SIZE, red_bits, GLX_GREEN_SIZE, green_bits, GLX_BLUE_SIZE, blue_bits, GLX_ALPHA_SIZE, alpha_bits, GLX_STENCIL_SIZE, 0, GLX_DEPTH_SIZE, 0, 0 }; int count = 0; GLXFBConfig *configs = glXChooseFBConfig(display(), DefaultScreen(display()), attribs, &count); if (count < 1) { qCCritical(KWIN_X11STANDALONE).nospace() << "Could not find a framebuffer configuration for visual 0x" << hex << visual; return info; } struct FBConfig { GLXFBConfig config; int depth; int stencil; int format; }; std::deque candidates; for (int i = 0; i < count; i++) { int red, green, blue; glXGetFBConfigAttrib(display(), configs[i], GLX_RED_SIZE, &red); glXGetFBConfigAttrib(display(), configs[i], GLX_GREEN_SIZE, &green); glXGetFBConfigAttrib(display(), configs[i], GLX_BLUE_SIZE, &blue); if (std::tie(red, green, blue) != rgb_sizes) continue; xcb_visualid_t visual; glXGetFBConfigAttrib(display(), configs[i], GLX_VISUAL_ID, (int *) &visual); if (visualDepth(visual) != depth) continue; int bind_rgb, bind_rgba; glXGetFBConfigAttrib(display(), configs[i], GLX_BIND_TO_TEXTURE_RGBA_EXT, &bind_rgba); glXGetFBConfigAttrib(display(), configs[i], GLX_BIND_TO_TEXTURE_RGB_EXT, &bind_rgb); if (!bind_rgb && !bind_rgba) continue; int depth, stencil; glXGetFBConfigAttrib(display(), configs[i], GLX_DEPTH_SIZE, &depth); glXGetFBConfigAttrib(display(), configs[i], GLX_STENCIL_SIZE, &stencil); int texture_format; if (alpha_bits) texture_format = bind_rgba ? GLX_TEXTURE_FORMAT_RGBA_EXT : GLX_TEXTURE_FORMAT_RGB_EXT; else texture_format = bind_rgb ? GLX_TEXTURE_FORMAT_RGB_EXT : GLX_TEXTURE_FORMAT_RGBA_EXT; candidates.emplace_back(FBConfig{configs[i], depth, stencil, texture_format}); } if (count > 0) XFree(configs); std::stable_sort(candidates.begin(), candidates.end(), [](const FBConfig &left, const FBConfig &right) { if (left.depth < right.depth) return true; if (left.stencil < right.stencil) return true; return false; }); if (candidates.size() > 0) { const FBConfig &candidate = candidates.front(); int y_inverted, texture_targets; glXGetFBConfigAttrib(display(), candidate.config, GLX_BIND_TO_TEXTURE_TARGETS_EXT, &texture_targets); glXGetFBConfigAttrib(display(), candidate.config, GLX_Y_INVERTED_EXT, &y_inverted); info->fbconfig = candidate.config; info->bind_texture_format = candidate.format; info->texture_targets = texture_targets; info->y_inverted = y_inverted; info->mipmap = 0; } if (info->fbconfig) { int fbc_id = 0; int visual_id = 0; glXGetFBConfigAttrib(display(), info->fbconfig, GLX_FBCONFIG_ID, &fbc_id); glXGetFBConfigAttrib(display(), info->fbconfig, GLX_VISUAL_ID, &visual_id); qCDebug(KWIN_X11STANDALONE).nospace() << "Using FBConfig 0x" << hex << fbc_id << " for visual 0x" << hex << visual_id; } return info; } void GlxBackend::setSwapInterval(int interval) { if (m_haveEXTSwapControl) glXSwapIntervalEXT(display(), glxWindow, interval); else if (m_haveMESASwapControl) glXSwapIntervalMESA(interval); else if (m_haveSGISwapControl) glXSwapIntervalSGI(interval); } void GlxBackend::waitSync() { // NOTE that vsync has no effect with indirect rendering if (haveWaitSync) { uint sync; #if 0 // TODO: why precisely is this important? // the sync counter /can/ perform multiple steps during glXGetVideoSync & glXWaitVideoSync // but this only leads to waiting for two frames??!? glXGetVideoSync(&sync); glXWaitVideoSync(2, (sync + 1) % 2, &sync); #else glXWaitVideoSyncSGI(1, 0, &sync); #endif } } void GlxBackend::present() { if (lastDamage().isEmpty()) return; const QSize &screenSize = screens()->size(); const QRegion displayRegion(0, 0, screenSize.width(), screenSize.height()); const bool fullRepaint = supportsBufferAge() || (lastDamage() == displayRegion); if (fullRepaint) { if (m_haveINTELSwapEvent) Compositor::self()->aboutToSwapBuffers(); if (haveSwapInterval) { if (gs_tripleBufferNeedsDetection) { glXWaitGL(); m_swapProfiler.begin(); } glXSwapBuffers(display(), glxWindow); if (gs_tripleBufferNeedsDetection) { glXWaitGL(); if (char result = m_swapProfiler.end()) { gs_tripleBufferUndetected = gs_tripleBufferNeedsDetection = false; if (result == 'd' && GLPlatform::instance()->driver() == Driver_NVidia) { // TODO this is a workaround, we should get __GL_YIELD set before libGL checks it if (qstrcmp(qgetenv("__GL_YIELD"), "USLEEP")) { options->setGlPreferBufferSwap(0); setSwapInterval(0); result = 0; // hint proper behavior qCWarning(KWIN_X11STANDALONE) << "\nIt seems you are using the nvidia driver without triple buffering\n" "You must export __GL_YIELD=\"USLEEP\" to prevent large CPU overhead on synced swaps\n" "Preferably, enable the TripleBuffer Option in the xorg.conf Device\n" "For this reason, the tearing prevention has been disabled.\n" "See https://bugs.kde.org/show_bug.cgi?id=322060\n"; } } setBlocksForRetrace(result == 'd'); } } else if (blocksForRetrace()) { // at least the nvidia blob manages to swap async, ie. return immediately on double // buffering - what messes our timing calculation and leads to laggy behavior #346275 glXWaitGL(); } } else { waitSync(); glXSwapBuffers(display(), glxWindow); } if (supportsBufferAge()) { glXQueryDrawable(display(), glxWindow, GLX_BACK_BUFFER_AGE_EXT, (GLuint *) &m_bufferAge); } } else if (m_haveMESACopySubBuffer) { foreach (const QRect & r, lastDamage().rects()) { // convert to OpenGL coordinates int y = screenSize.height() - r.y() - r.height(); glXCopySubBufferMESA(display(), glxWindow, r.x(), y, r.width(), r.height()); } } else { // Copy Pixels (horribly slow on Mesa) glDrawBuffer(GL_FRONT); SceneOpenGL::copyPixels(lastDamage()); glDrawBuffer(GL_BACK); } setLastDamage(QRegion()); if (!supportsBufferAge()) { glXWaitGL(); XFlush(display()); } } void GlxBackend::screenGeometryChanged(const QSize &size) { doneCurrent(); XMoveResizeWindow(display(), window, 0, 0, size.width(), size.height()); overlayWindow()->setup(window); Xcb::sync(); makeCurrent(); glViewport(0, 0, size.width(), size.height()); // The back buffer contents are now undefined m_bufferAge = 0; } SceneOpenGL::TexturePrivate *GlxBackend::createBackendTexture(SceneOpenGL::Texture *texture) { return new GlxTexture(texture, this); } QRegion GlxBackend::prepareRenderingFrame() { QRegion repaint; if (gs_tripleBufferNeedsDetection) { // the composite timer floors the repaint frequency. This can pollute our triple buffering // detection because the glXSwapBuffers call for the new frame has to wait until the pending // one scanned out. // So we compensate for that by waiting an extra milisecond to give the driver the chance to // fllush the buffer queue usleep(1000); } present(); if (supportsBufferAge()) repaint = accumulatedDamageHistory(m_bufferAge); startRenderTimer(); glXWaitX(); return repaint; } void GlxBackend::endRenderingFrame(const QRegion &renderedRegion, const QRegion &damagedRegion) { if (damagedRegion.isEmpty()) { setLastDamage(QRegion()); // If the damaged region of a window is fully occluded, the only // rendering done, if any, will have been to repair a reused back // buffer, making it identical to the front buffer. // // In this case we won't post the back buffer. Instead we'll just // set the buffer age to 1, so the repaired regions won't be // rendered again in the next frame. if (!renderedRegion.isEmpty()) glFlush(); m_bufferAge = 1; return; } setLastDamage(renderedRegion); if (!blocksForRetrace()) { // This also sets lastDamage to empty which prevents the frame from // being posted again when prepareRenderingFrame() is called. present(); } else { // Make sure that the GPU begins processing the command stream // now and not the next time prepareRenderingFrame() is called. glFlush(); } if (overlayWindow()->window()) // show the window only after the first pass, overlayWindow()->show(); // since that pass may take long // Save the damaged region to history if (supportsBufferAge()) addToDamageHistory(damagedRegion); } bool GlxBackend::makeCurrent() { if (QOpenGLContext *context = QOpenGLContext::currentContext()) { // Workaround to tell Qt that no QOpenGLContext is current context->doneCurrent(); } const bool current = glXMakeCurrent(display(), glxWindow, ctx); return current; } void GlxBackend::doneCurrent() { glXMakeCurrent(display(), None, nullptr); } OverlayWindow* GlxBackend::overlayWindow() { return m_overlayWindow; } bool GlxBackend::usesOverlayWindow() const { return true; } /******************************************************** * GlxTexture *******************************************************/ GlxTexture::GlxTexture(SceneOpenGL::Texture *texture, GlxBackend *backend) : SceneOpenGL::TexturePrivate() , q(texture) , m_backend(backend) , m_glxpixmap(None) { } GlxTexture::~GlxTexture() { if (m_glxpixmap != None) { if (!options->isGlStrictBinding()) { glXReleaseTexImageEXT(display(), m_glxpixmap, GLX_FRONT_LEFT_EXT); } glXDestroyPixmap(display(), m_glxpixmap); m_glxpixmap = None; } } void GlxTexture::onDamage() { if (options->isGlStrictBinding() && m_glxpixmap) { glXReleaseTexImageEXT(display(), m_glxpixmap, GLX_FRONT_LEFT_EXT); glXBindTexImageEXT(display(), m_glxpixmap, GLX_FRONT_LEFT_EXT, NULL); } GLTexturePrivate::onDamage(); } bool GlxTexture::loadTexture(xcb_pixmap_t pixmap, const QSize &size, xcb_visualid_t visual) { if (pixmap == XCB_NONE || size.isEmpty() || visual == XCB_NONE) return false; const FBConfigInfo *info = m_backend->infoForVisual(visual); if (!info || info->fbconfig == nullptr) return false; if (info->texture_targets & GLX_TEXTURE_2D_BIT_EXT) { m_target = GL_TEXTURE_2D; m_scale.setWidth(1.0f / m_size.width()); m_scale.setHeight(1.0f / m_size.height()); } else { assert(info->texture_targets & GLX_TEXTURE_RECTANGLE_BIT_EXT); m_target = GL_TEXTURE_RECTANGLE; m_scale.setWidth(1.0f); m_scale.setHeight(1.0f); } const int attrs[] = { GLX_TEXTURE_FORMAT_EXT, info->bind_texture_format, GLX_MIPMAP_TEXTURE_EXT, false, GLX_TEXTURE_TARGET_EXT, m_target == GL_TEXTURE_2D ? GLX_TEXTURE_2D_EXT : GLX_TEXTURE_RECTANGLE_EXT, 0 }; m_glxpixmap = glXCreatePixmap(display(), info->fbconfig, pixmap, attrs); m_size = size; m_yInverted = info->y_inverted ? true : false; m_canUseMipmaps = false; glGenTextures(1, &m_texture); q->setDirty(); q->setFilter(GL_NEAREST); glBindTexture(m_target, m_texture); glXBindTexImageEXT(display(), m_glxpixmap, GLX_FRONT_LEFT_EXT, nullptr); updateMatrix(); return true; } bool GlxTexture::loadTexture(WindowPixmap *pixmap) { Toplevel *t = pixmap->toplevel(); return loadTexture(pixmap->pixmap(), t->size(), t->visual()); } OpenGLBackend *GlxTexture::backend() { return m_backend; } } // namespace diff --git a/plugins/platforms/x11/standalone/glxbackend.h b/plugins/platforms/x11/standalone/glxbackend.h index 5c6c351d3..1f801df7b 100644 --- a/plugins/platforms/x11/standalone/glxbackend.h +++ b/plugins/platforms/x11/standalone/glxbackend.h @@ -1,135 +1,139 @@ /******************************************************************** KWin - the KDE window manager This file is part of the KDE project. Copyright (C) 2012 Martin Gräßlin 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 . *********************************************************************/ #ifndef KWIN_GLX_BACKEND_H #define KWIN_GLX_BACKEND_H #include "scene_opengl.h" #include "x11eventfilter.h" #include #include #include namespace KWin { +// GLX_MESA_swap_interval +using glXSwapIntervalMESA_func = int (*)(unsigned int interval); +extern glXSwapIntervalMESA_func glXSwapIntervalMESA; + class FBConfigInfo { public: GLXFBConfig fbconfig; int bind_texture_format; int texture_targets; int y_inverted; int mipmap; }; // ------------------------------------------------------------------ class SwapEventFilter : public X11EventFilter { public: SwapEventFilter(xcb_drawable_t drawable, xcb_glx_drawable_t glxDrawable); bool event(xcb_generic_event_t *event) override; private: xcb_drawable_t m_drawable; xcb_glx_drawable_t m_glxDrawable; }; /** * @brief OpenGL Backend using GLX over an X overlay window. **/ class GlxBackend : public OpenGLBackend { public: GlxBackend(); virtual ~GlxBackend(); virtual void screenGeometryChanged(const QSize &size); virtual SceneOpenGL::TexturePrivate *createBackendTexture(SceneOpenGL::Texture *texture); virtual QRegion prepareRenderingFrame(); virtual void endRenderingFrame(const QRegion &damage, const QRegion &damagedRegion); virtual bool makeCurrent() override; virtual void doneCurrent() override; virtual OverlayWindow* overlayWindow() override; virtual bool usesOverlayWindow() const override; void init() override; protected: virtual void present(); private: bool initBuffer(); bool checkVersion(); void initExtensions(); void waitSync(); bool initRenderingContext(); bool initFbConfig(); void initVisualDepthHashTable(); void setSwapInterval(int interval); int visualDepth(xcb_visualid_t visual) const; FBConfigInfo *infoForVisual(xcb_visualid_t visual); /** * @brief The OverlayWindow used by this Backend. **/ OverlayWindow *m_overlayWindow; Window window; GLXFBConfig fbconfig; GLXWindow glxWindow; GLXContext ctx; QHash m_fbconfigHash; QHash m_visualDepthHash; std::unique_ptr m_swapEventFilter; int m_bufferAge; bool m_haveMESACopySubBuffer = false; bool m_haveMESASwapControl = false; bool m_haveEXTSwapControl = false; bool m_haveSGISwapControl = false; bool m_haveINTELSwapEvent = false; bool haveSwapInterval = false; bool haveWaitSync = false; friend class GlxTexture; }; /** * @brief Texture using an GLXPixmap. **/ class GlxTexture : public SceneOpenGL::TexturePrivate { public: virtual ~GlxTexture(); virtual void onDamage(); virtual bool loadTexture(WindowPixmap *pixmap) override; virtual OpenGLBackend *backend(); private: friend class GlxBackend; GlxTexture(SceneOpenGL::Texture *texture, GlxBackend *backend); bool loadTexture(xcb_pixmap_t pix, const QSize &size, xcb_visualid_t visual); SceneOpenGL::Texture *q; GlxBackend *m_backend; GLXPixmap m_glxpixmap; // the glx pixmap the texture is bound to }; } // namespace #endif // KWIN_GLX_BACKEND_H