diff options
Diffstat (limited to 'src/opengl/gl2paintengineex/qglshader.cpp')
| -rw-r--r-- | src/opengl/gl2paintengineex/qglshader.cpp | 605 |
1 files changed, 0 insertions, 605 deletions
diff --git a/src/opengl/gl2paintengineex/qglshader.cpp b/src/opengl/gl2paintengineex/qglshader.cpp deleted file mode 100644 index 634be84..0000000 --- a/src/opengl/gl2paintengineex/qglshader.cpp +++ /dev/null @@ -1,605 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). -** Contact: Qt Software Information (qt-info@nokia.com) -** -** This file is part of the QtOpenGL module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** No Commercial Usage -** This file contains pre-release code and may not be distributed. -** You may use this file in accordance with the terms and conditions -** contained in the either Technology Preview License Agreement or the -** Beta Release License Agreement. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain -** additional rights. These rights are described in the Nokia Qt LGPL -** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this -** package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** If you are unsure which license is appropriate for your use, please -** contact the sales department at qt-sales@nokia.com. -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qglshader_p.h" - - -// Windows needs to resolve OpenGL 2.0 function pointers for each context. The -// QGL OpenGL 2.0 functions are actually macros, which take a "ctx" parameter. -#define Q_CTX QGLContext* ctx = d->ctx; \ - if (!ctx) \ - return false; \ - ctx->makeCurrent(); \ - - - - -class QGLShaderPrivate -{ -public: - QGLShaderPrivate() : shaderId(0), valid(false), ctx(0) {} - - GLuint shaderId; - QString source; - bool valid; - QGLShader::ShaderType type; - QGLContext* ctx; -}; - - -QGLShader::QGLShader(QGLShader::ShaderType type, const QGLContext* ctx) - : d_ptr(new QGLShaderPrivate) -{ - Q_D(QGLShader); - - if (!ctx) - ctx = QGLContext::currentContext(); - - if (!ctx) { - qWarning("QGLShader being created without a context"); - return; - } - - d->ctx = const_cast<QGLContext*>(ctx); - d->ctx->makeCurrent(); - - if (type == QGLShader::FragmentShader) - d->shaderId = glCreateShader(GL_FRAGMENT_SHADER); - else - d->shaderId = glCreateShader(GL_VERTEX_SHADER); - - if (d->shaderId == 0) { - qWarning("Error creating shader object"); - return; - } - - d->type = type; -} - -GLuint QGLShader::id() -{ - Q_D(QGLShader); - return d->shaderId; -} - -const QGLContext* QGLShader::context() -{ - Q_D(QGLShader); - return d->ctx; -} - -void QGLShader::clearSource() -{ - Q_D(QGLShader); - d->source.clear(); - d->valid = false; -} - -void QGLShader::addSource(const QLatin1String& newSource) -{ - Q_D(QGLShader); - d->source += newSource; - d->valid = false; -} - - -bool QGLShader::compile() -{ - Q_D(QGLShader); - - d->valid = false; - - if (d->source.size() == 0) - return false; - - const QByteArray src_ba = d->source.toAscii(); - const char* src = src_ba.constData(); - - glShaderSource(d->shaderId, 1, &src, 0); - - glCompileShader(d->shaderId); - - GLint shaderCompiled; - glGetShaderiv(d->shaderId, GL_COMPILE_STATUS, &shaderCompiled); - if (!shaderCompiled) - return false; - - d->valid = true; - return true; -} - -bool QGLShader::isValid() -{ - Q_D(QGLShader); - return d->valid; -} - -QString QGLShader::log() -{ - Q_D(QGLShader); - - char* logData; - GLint logSize; - GLint logLength; - - glGetShaderiv(d->shaderId, GL_INFO_LOG_LENGTH, &logSize); - - if (!logSize) - return QString(); - - logData = new char[logSize]; - glGetShaderInfoLog(d->shaderId, logSize, &logLength, logData); - QString result = QString::fromAscii(logData); - delete [] logData; - - return result; -} - - - - - - - - - - - - -class QGLShaderProgramPrivate -{ -public: - QGLShaderProgramPrivate() : valid(false), programId(0), ctx(0) {} - void populateVariableLists(); - - QVector<QGLShader*> shaders; - QGLUniformList uniforms; - QGLVertexAttributeList attributeArrays; - bool valid; - GLuint programId; - QGLContext* ctx; -}; - - - -void QGLShaderProgramPrivate::populateVariableLists() -{ - attributeArrays.clear(); - uniforms.clear(); - - int count; - int sizeOfNameBuff; - char* name; - GLint nameLength; - GLenum type; - GLint size; - GLint location; - - glGetProgramiv(programId, GL_ACTIVE_ATTRIBUTES, &count); - glGetProgramiv(programId, GL_ACTIVE_ATTRIBUTE_MAX_LENGTH, &sizeOfNameBuff); - name = new char[sizeOfNameBuff]; - - for (int i = 0; i < count; ++i) { - nameLength = -1; - glGetActiveAttrib(programId, i, sizeOfNameBuff, &nameLength, &size, &type, name); - if (nameLength == -1) - continue; - - location = glGetAttribLocation(programId, name); - attributeArrays.insert(QString::fromAscii(name), QGLVertexAttribute(type, location, ctx)); - } - - delete [] name; - - - glGetProgramiv(programId, GL_ACTIVE_UNIFORMS, &count); - glGetProgramiv(programId, GL_ACTIVE_UNIFORM_MAX_LENGTH, &sizeOfNameBuff); - - name = new char[sizeOfNameBuff]; - - for (int i = 0; i < count; ++i) { - nameLength = -1; - glGetActiveUniform(programId, i, sizeOfNameBuff, &nameLength, &size, &type, name); - if (nameLength == -1) - continue; - - location = glGetUniformLocation(programId, name); - uniforms.insert(QString::fromAscii(name), QGLUniform(type, location, ctx)); - } -} - - -QGLShaderProgram::QGLShaderProgram(const QGLContext* ctx) - : d_ptr(new QGLShaderProgramPrivate) -{ - Q_D(QGLShaderProgram); - if (!ctx) - ctx = QGLContext::currentContext(); - - if (!ctx) { - qWarning("QGLShaderProgram being created without a context"); - return; - } - - d->ctx = const_cast<QGLContext*>(ctx); - d->ctx->makeCurrent(); - - d->programId = glCreateProgram(); - - d->valid = false; -} - - -const QGLUniformList & QGLShaderProgram::uniforms() -{ - Q_D(QGLShaderProgram); - return const_cast<const QGLUniformList&>(d->uniforms); -} - - -const QGLVertexAttributeList& QGLShaderProgram::vertexAttributes() -{ - Q_D(QGLShaderProgram); - return const_cast<const QGLVertexAttributeList&>(d->attributeArrays); -} - - -bool QGLShaderProgram::addShader(QGLShader* newShader) -{ - Q_D(QGLShaderProgram); - if (!newShader || !d->ctx) - return false; - - if (newShader->context() != d->ctx) { - qWarning("Shader object's context does not match program's context"); - return false; - } - - if (!newShader->isValid()) - return false; - - QGLContext* ctx = d->ctx; - if (!ctx) - return false; - ctx->makeCurrent(); - - glAttachShader(d->programId, newShader->id()); - - d->shaders.append(newShader); - return true; -} - - -bool QGLShaderProgram::removeShader(QGLShader* oldShader) -{ - Q_D(QGLShaderProgram); - - int idx = d->shaders.indexOf(oldShader); - - if (idx == -1) - return false; - - d->shaders.remove(idx); - - QGLContext* ctx = d->ctx; - if (!ctx) - return false; - ctx->makeCurrent(); - - glDetachShader(d->programId, oldShader->id()); - return true; -} - - -bool QGLShaderProgram::removeAllShaders() -{ - Q_D(QGLShaderProgram); - - QGLContext* ctx = d->ctx; - if (!ctx) - return false; - ctx->makeCurrent(); - - foreach (QGLShader* shader, d->shaders) - glDetachShader(d->programId, shader->id()); - - d->shaders.clear(); - return true; -} - -#include <stdio.h> - -bool QGLShaderProgram::link() -{ - Q_D(QGLShaderProgram); - - QGLContext* ctx = d->ctx; - if (!ctx) - return false; - ctx->makeCurrent(); - - glLinkProgram(d->programId); - - - GLint linked; - glGetProgramiv(d->programId, GL_LINK_STATUS, &linked); - - if (!linked) - return false; - - d->populateVariableLists(); - - d->valid = true; - return true; -} - -void QGLShaderProgram::use() -{ - Q_D(QGLShaderProgram); - if (!d->valid) - return; - - glUseProgram(d->programId); -} - - -QString QGLShaderProgram::log() -{ - Q_D(QGLShaderProgram); - - QGLContext* ctx = d->ctx; - if (!ctx) - return QString(); - ctx->makeCurrent(); - - GLint logSize = -666; - glGetProgramiv(d->programId, GL_INFO_LOG_LENGTH, &logSize); - - char* logData = new char[logSize]; - GLint logLength; - - glGetProgramInfoLog(d->programId, logSize, &logLength, logData); - - QString result = QString::fromAscii(logData); - delete [] logData; - - return result; -} - -GLuint QGLShaderProgram::id() -{ - Q_D(QGLShaderProgram); - return d->programId; -} - -///////////////////////////////////////////////////////////////////////// - - - - -QGLUniform::QGLUniform() - : m_id(0), m_type(QGLInvalidType), ctx(0) -{ - qWarning("Unknown uniform! Either the uniform doesn't exist or it was removed at shader link"); -} - -const QGLUniform& QGLUniform::operator=(const GLfloat& rhs) const -{ - if (m_type != QGLFloatType) - return *this; - - glUniform1f(m_id, rhs); - - return *this; -} - -const QGLUniform& QGLUniform::operator=(const QGLVec2& rhs) const -{ - if (m_type != QGLVec2Type) - return *this; - - glUniform2fv(m_id, 1, (const GLfloat*)&rhs); - - return *this; -} - -const QGLUniform& QGLUniform::operator=(const QSizeF& rhs) const -{ - if (m_type != QGLVec2Type) - return *this; - - glUniform2f(m_id, rhs.width(), rhs.height()); - - return *this; -} - -const QGLUniform& QGLUniform::operator=(const QPointF& rhs) const -{ - if (m_type != QGLVec2Type) - return *this; - - glUniform2f(m_id, rhs.x(), rhs.y()); - - return *this; -} - -const QGLUniform& QGLUniform::operator=(const QGLVec3& rhs) const -{ - if (m_type != QGLVec3Type) - return *this; - - glUniform3fv(m_id, 1, (const GLfloat*)&rhs); - - return *this; -} - -const QGLUniform& QGLUniform::operator=(const QGLVec4& rhs) const -{ - if (m_type != QGLVec4Type) - return *this; - - glUniform4fv(m_id, 1, (const GLfloat*)&rhs); - - return *this; -} - -const QGLUniform& QGLUniform::operator=(const QColor& rhs) const -{ - if (m_type != QGLVec4Type) - return *this; - - glUniform4f(m_id, rhs.redF(), rhs.greenF(), rhs.blueF(), rhs.alphaF()); - - return *this; -} - -const QGLUniform& QGLUniform::operator=(const GLfloat rhs[2][2]) const -{ - if (m_type != QGLMat2Type) - return *this; - - glUniformMatrix2fv(m_id, 1, GL_FALSE, (GLfloat*)rhs); - - return *this; -} - -const QGLUniform& QGLUniform::operator=(const GLfloat rhs[3][3]) const -{ - if (m_type != QGLMat3Type) - return *this; - - glUniformMatrix3fv(m_id, 1, GL_FALSE, (GLfloat*)rhs); - - return *this; -} - -// Transposes ready for GL -const QGLUniform& QGLUniform::operator=(const QTransform& rhs) const -{ - if (m_type != QGLMat3Type) - return *this; - - GLfloat mat3[3][3] = { - {rhs.m11(), rhs.m12(), rhs.m13()}, - {rhs.m21(), rhs.m22(), rhs.m23()}, - {rhs.m31(), rhs.m32(), rhs.m33()} - }; - - glUniformMatrix3fv(m_id, 1, GL_FALSE, (GLfloat*)mat3); - - return *this; -} - -const QGLUniform& QGLUniform::operator=(const GLfloat rhs[4][4]) const -{ - if (m_type != QGLMat4Type) - return *this; - - glUniformMatrix4fv(m_id, 1, GL_FALSE, (GLfloat*)rhs); - - return *this; -} - -const QGLUniform& QGLUniform::operator=(const GLuint& rhs) const -{ - if ((m_type != QGLSampler2DType) || (m_type != QGLSamplerCubeType)) - return *this; - - glUniform1i(m_id, rhs); - - return *this; -} - - - - -///////////////////////////////////////////////////////////////////////// - -QGLVertexAttribute::QGLVertexAttribute() - : m_id(0), m_type(QGLInvalidType), ctx(0) -{ - qWarning("Unknown vertex attribute!"); -} - -void QGLVertexAttribute::enable() const -{ - glEnableVertexAttribArray(m_id); -} - -void QGLVertexAttribute::disable() const -{ - glDisableVertexAttribArray(m_id); -} - -// NOTE: Under PC emulation, QGLVec4Type is _always_ returned as the type, so this -// method isn't very useful. I.e. The datatypes are needed to distinguish the different -// sizes for the function signatures. -const QGLVertexAttribute& QGLVertexAttribute::operator=(const GLfloat* rhs) const -{ - int size = -1; - if (m_type == QGLFloatType) - size = 1; - else if (m_type == QGLVec2Type) - size = 2; - else if (m_type == QGLVec3Type) - size = 3; - else if (m_type == QGLVec4Type) - size = 4; - else if (m_type == QGLMat2Type) //### Not sure if this is right for matrix attributes... - size = 4; - else if (m_type == QGLMat3Type) //### Not sure if this is right for matrix attributes... - size = 9; - else if (m_type == QGLMat4Type) //### Not sure if this is right for matrix attributes... - size = 16; - else - return *this; - - glVertexAttribPointer(m_id, size, GL_FLOAT, GL_FALSE, 0, rhs); - - return *this; -} - -const QGLVertexAttribute& QGLVertexAttribute::operator=(const QGLVec3* rhs) const -{ - glVertexAttribPointer(m_id, 3, GL_FLOAT, GL_FALSE, 0, (GLfloat*)rhs); - - return *this; -} |