Long live Qt!

1 files changed, 185 insertions, 0 deletions

diff --git a/src/opengl/qglextensions.cpp b/src/opengl/qglextensions.cpp
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+/****************************************************************************
+**
+** 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 "qgl_p.h"
+
+QT_BEGIN_NAMESPACE
+
+bool qt_resolve_framebufferobject_extensions(QGLContext *ctx)
+{
+#if !defined(QT_OPENGL_ES_2)
+    if (glIsRenderbufferEXT != 0)
+        return true;
+
+    if (ctx == 0) {
+        qWarning("QGLFramebufferObject: Unable to resolve framebuffer object extensions -"
+                 " make sure there is a current context when creating the framebuffer object.");
+        return false;
+    }
+
+    glIsRenderbufferEXT = (_glIsRenderbufferEXT) ctx->getProcAddress(QLatin1String("glIsRenderbufferEXT"));
+    glBindRenderbufferEXT = (_glBindRenderbufferEXT) ctx->getProcAddress(QLatin1String("glBindRenderbufferEXT"));
+    glDeleteRenderbuffersEXT = (_glDeleteRenderbuffersEXT) ctx->getProcAddress(QLatin1String("glDeleteRenderbuffersEXT"));
+    glGenRenderbuffersEXT = (_glGenRenderbuffersEXT) ctx->getProcAddress(QLatin1String("glGenRenderbuffersEXT"));
+    glRenderbufferStorageEXT = (_glRenderbufferStorageEXT) ctx->getProcAddress(QLatin1String("glRenderbufferStorageEXT"));
+    glGetRenderbufferParameterivEXT =
+        (_glGetRenderbufferParameterivEXT) ctx->getProcAddress(QLatin1String("glGetRenderbufferParameterivEXT"));
+    glIsFramebufferEXT = (_glIsFramebufferEXT) ctx->getProcAddress(QLatin1String("glIsFramebufferEXT"));
+    glBindFramebufferEXT = (_glBindFramebufferEXT) ctx->getProcAddress(QLatin1String("glBindFramebufferEXT"));
+    glDeleteFramebuffersEXT = (_glDeleteFramebuffersEXT) ctx->getProcAddress(QLatin1String("glDeleteFramebuffersEXT"));
+    glGenFramebuffersEXT = (_glGenFramebuffersEXT) ctx->getProcAddress(QLatin1String("glGenFramebuffersEXT"));
+    glCheckFramebufferStatusEXT = (_glCheckFramebufferStatusEXT) ctx->getProcAddress(QLatin1String("glCheckFramebufferStatusEXT"));
+    glFramebufferTexture1DEXT = (_glFramebufferTexture1DEXT) ctx->getProcAddress(QLatin1String("glFramebufferTexture1DEXT"));
+    glFramebufferTexture2DEXT = (_glFramebufferTexture2DEXT) ctx->getProcAddress(QLatin1String("glFramebufferTexture2DEXT"));
+    glFramebufferTexture3DEXT = (_glFramebufferTexture3DEXT) ctx->getProcAddress(QLatin1String("glFramebufferTexture3DEXT"));
+    glFramebufferRenderbufferEXT = (_glFramebufferRenderbufferEXT) ctx->getProcAddress(QLatin1String("glFramebufferRenderbufferEXT"));
+    glGetFramebufferAttachmentParameterivEXT =
+        (_glGetFramebufferAttachmentParameterivEXT) ctx->getProcAddress(QLatin1String("glGetFramebufferAttachmentParameterivEXT"));
+    glGenerateMipmapEXT = (_glGenerateMipmapEXT) ctx->getProcAddress(QLatin1String("glGenerateMipmapEXT"));
+    return glIsRenderbufferEXT;
+#else
+    Q_UNUSED(ctx);
+    return true;
+#endif
+}
+
+bool qt_resolve_version_1_3_functions(QGLContext *ctx)
+{
+    if (glMultiTexCoord4f != 0)
+        return true;
+
+    QGLContext cx(QGLFormat::defaultFormat());
+    glMultiTexCoord4f = (_glMultiTexCoord4f) ctx->getProcAddress(QLatin1String("glMultiTexCoord4f"));
+
+#if defined(QT_OPENGL_ES_2)
+    return glMultiTexCoord4f;
+#else
+    glActiveTexture = (_glActiveTexture) ctx->getProcAddress(QLatin1String("glActiveTexture"));
+    return glMultiTexCoord4f && glActiveTexture;
+#endif
+}
+
+bool qt_resolve_stencil_face_extension(QGLContext *ctx)
+{
+    if (glActiveStencilFaceEXT != 0)
+        return true;
+
+    QGLContext cx(QGLFormat::defaultFormat());
+    glActiveStencilFaceEXT = (_glActiveStencilFaceEXT) ctx->getProcAddress(QLatin1String("glActiveStencilFaceEXT"));
+
+    return glActiveStencilFaceEXT;
+}
+
+bool qt_resolve_frag_program_extensions(QGLContext *ctx)
+{
+    if (glProgramStringARB != 0)
+        return true;
+
+    // ARB_fragment_program
+    glProgramStringARB = (_glProgramStringARB) ctx->getProcAddress(QLatin1String("glProgramStringARB"));
+    glBindProgramARB = (_glBindProgramARB) ctx->getProcAddress(QLatin1String("glBindProgramARB"));
+    glDeleteProgramsARB = (_glDeleteProgramsARB) ctx->getProcAddress(QLatin1String("glDeleteProgramsARB"));
+    glGenProgramsARB = (_glGenProgramsARB) ctx->getProcAddress(QLatin1String("glGenProgramsARB"));
+    glProgramLocalParameter4fvARB = (_glProgramLocalParameter4fvARB) ctx->getProcAddress(QLatin1String("glProgramLocalParameter4fvARB"));
+
+    return glProgramStringARB
+        && glBindProgramARB
+        && glDeleteProgramsARB
+        && glGenProgramsARB
+        && glProgramLocalParameter4fvARB;
+}
+
+bool qt_resolve_buffer_extensions(QGLContext *ctx)
+{
+    if (glBindBufferARB && glDeleteBuffersARB && glGenBuffersARB && glBufferDataARB
+        && glMapBufferARB && glUnmapBufferARB)
+        return true;
+
+    glBindBufferARB = (_glBindBufferARB) ctx->getProcAddress(QLatin1String("glBindBufferARB"));
+    glDeleteBuffersARB = (_glDeleteBuffersARB) ctx->getProcAddress(QLatin1String("glDeleteBuffersARB"));
+    glGenBuffersARB = (_glGenBuffersARB) ctx->getProcAddress(QLatin1String("glGenBuffersARB"));
+    glBufferDataARB = (_glBufferDataARB) ctx->getProcAddress(QLatin1String("glBufferDataARB"));
+    glMapBufferARB = (_glMapBufferARB) ctx->getProcAddress(QLatin1String("glMapBufferARB"));
+    glUnmapBufferARB = (_glUnmapBufferARB) ctx->getProcAddress(QLatin1String("glUnmapBufferARB"));
+
+    return glBindBufferARB
+        && glDeleteBuffersARB
+        && glGenBuffersARB
+        && glBufferDataARB
+        && glMapBufferARB
+        && glUnmapBufferARB;
+}
+
+bool qt_resolve_glsl_extensions(QGLContext *ctx)
+{
+    if (glCreateShader)
+        return true;
+
+    glCreateShader = (_glCreateShader) ctx->getProcAddress(QLatin1String("glCreateShader"));
+    glShaderSource = (_glShaderSource) ctx->getProcAddress(QLatin1String("glShaderSource"));
+    glCompileShader = (_glCompileShader) ctx->getProcAddress(QLatin1String("glCompileShader"));
+    glDeleteShader = (_glDeleteShader) ctx->getProcAddress(QLatin1String("glDeleteShader"));
+
+    glCreateProgram = (_glCreateProgram) ctx->getProcAddress(QLatin1String("glCreateProgram"));
+    glAttachShader = (_glAttachShader) ctx->getProcAddress(QLatin1String("glAttachShader"));
+    glDetachShader = (_glDetachShader) ctx->getProcAddress(QLatin1String("glDetachShader"));
+    glLinkProgram = (_glLinkProgram) ctx->getProcAddress(QLatin1String("glLinkProgram"));
+    glUseProgram = (_glUseProgram) ctx->getProcAddress(QLatin1String("glUseProgram"));
+    glDeleteProgram = (_glDeleteProgram) ctx->getProcAddress(QLatin1String("glDeleteProgram"));
+
+    glGetShaderInfoLog = (_glGetShaderInfoLog) ctx->getProcAddress(QLatin1String("glGetShaderInfoLog"));
+    glGetShaderiv = (_glGetShaderiv) ctx->getProcAddress(QLatin1String("glGetShaderiv"));
+    glGetProgramiv = (_glGetProgramiv) ctx->getProcAddress(QLatin1String("glGetProgramiv"));
+
+    glGetUniformLocation = (_glGetUniformLocation) ctx->getProcAddress(QLatin1String("glGetUniformLocation"));
+    glUniform4fv = (_glUniform4fv) ctx->getProcAddress(QLatin1String("glUniform4fv"));
+    glUniform3fv = (_glUniform3fv) ctx->getProcAddress(QLatin1String("glUniform3fv"));
+    glUniform2fv = (_glUniform2fv) ctx->getProcAddress(QLatin1String("glUniform2fv"));
+    glUniform1fv = (_glUniform1fv) ctx->getProcAddress(QLatin1String("glUniform1fv"));
+    glUniform1i = (_glUniform1i) ctx->getProcAddress(QLatin1String("glUniform1i"));
+
+    return glCreateShader && glShaderSource && glCompileShader && glDeleteProgram &&
+        glCreateProgram && glAttachShader && glDetachShader && glLinkProgram && glUseProgram &&
+        glDeleteProgram && glGetShaderInfoLog && glGetShaderiv && glGetProgramiv && glGetUniformLocation &&
+        glUniform1i && glUniform1fv && glUniform2fv && glUniform3fv && glUniform4fv;
+}
+
+QT_END_NAMESPACE