diff options
Diffstat (limited to 'src/datavisualization/utils/texturehelper.cpp')
| -rw-r--r-- | src/datavisualization/utils/texturehelper.cpp | 244 |
1 files changed, 167 insertions, 77 deletions
diff --git a/src/datavisualization/utils/texturehelper.cpp b/src/datavisualization/utils/texturehelper.cpp index 2a2a89dd..3944fb0c 100644 --- a/src/datavisualization/utils/texturehelper.cpp +++ b/src/datavisualization/utils/texturehelper.cpp @@ -21,12 +21,29 @@ #include <QtGui/QImage> #include <QtGui/QPainter> +#include <QtCore/QTime> QT_BEGIN_NAMESPACE_DATAVISUALIZATION +// Defined in shaderhelper.cpp +extern void discardDebugMsgs(QtMsgType type, const QMessageLogContext &context, const QString &msg); + TextureHelper::TextureHelper() { initializeOpenGLFunctions(); +#if !defined(QT_OPENGL_ES_2) + if (!Utils::isOpenGLES()) { + // Discard warnings about deprecated functions + QtMessageHandler handler = qInstallMessageHandler(discardDebugMsgs); + + m_openGlFunctions_2_1 = + QOpenGLContext::currentContext()->versionFunctions<QOpenGLFunctions_2_1>(); + m_openGlFunctions_2_1->initializeOpenGLFunctions(); + + // Restore original message handler + qInstallMessageHandler(handler); + } +#endif } TextureHelper::~TextureHelper() @@ -41,17 +58,16 @@ GLuint TextureHelper::create2DTexture(const QImage &image, bool useTrilinearFilt QImage texImage = image; -#if defined(QT_OPENGL_ES_2) - GLuint temp; - GLuint imageWidth = Utils::getNearestPowerOfTwo(image.width(), temp); - GLuint imageHeight = Utils::getNearestPowerOfTwo(image.height(), temp); - if (smoothScale) { - texImage = image.scaled(imageWidth, imageHeight, Qt::IgnoreAspectRatio, - Qt::SmoothTransformation); - } else { - texImage = image.scaled(imageWidth, imageHeight, Qt::IgnoreAspectRatio); + if (!Utils::isOpenGLES()) { + GLuint imageWidth = Utils::getNearestPowerOfTwo(image.width()); + GLuint imageHeight = Utils::getNearestPowerOfTwo(image.height()); + if (smoothScale) { + texImage = image.scaled(imageWidth, imageHeight, Qt::IgnoreAspectRatio, + Qt::SmoothTransformation); + } else { + texImage = image.scaled(imageWidth, imageHeight, Qt::IgnoreAspectRatio); + } } -#endif GLuint textureId; glGenTextures(1, &textureId); @@ -73,6 +89,53 @@ GLuint TextureHelper::create2DTexture(const QImage &image, bool useTrilinearFilt if (clampY) glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); glBindTexture(GL_TEXTURE_2D, 0); + + return textureId; +} + +GLuint TextureHelper::create3DTexture(const QVector<uchar> *data, int width, int height, int depth, + QImage::Format dataFormat) +{ + if (Utils::isOpenGLES() || !width || !height || !depth) + return 0; + + GLuint textureId = 0; +#if defined(QT_OPENGL_ES_2) + Q_UNUSED(dataFormat) + Q_UNUSED(data) +#else + glEnable(GL_TEXTURE_3D); + + glGenTextures(1, &textureId); + glBindTexture(GL_TEXTURE_3D, textureId); + glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE); + glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + + GLenum status = glGetError(); + // glGetError docs advise to call glGetError in loop to clear all error flags + while (status) + status = glGetError(); + + GLint internalFormat = 4; + GLint format = GL_BGRA; + if (dataFormat == QImage::Format_Indexed8) { + internalFormat = 1; + format = GL_RED; + // Align width to 32bits + width = width + width % 4; + } + m_openGlFunctions_2_1->glTexImage3D(GL_TEXTURE_3D, 0, internalFormat, width, height, depth, 0, + format, GL_UNSIGNED_BYTE, data->constData()); + status = glGetError(); + if (status) + qWarning() << __FUNCTION__ << "3D texture creation failed:" << status; + + glBindTexture(GL_TEXTURE_3D, 0); + glDisable(GL_TEXTURE_3D); +#endif return textureId; } @@ -113,14 +176,27 @@ GLuint TextureHelper::createSelectionTexture(const QSize &size, GLuint &frameBuf glBindTexture(GL_TEXTURE_2D, 0); // Create render buffer - if (!depthBuffer) - glGenRenderbuffers(1, &depthBuffer); + if (depthBuffer) + glDeleteRenderbuffers(1, &depthBuffer); + + glGenRenderbuffers(1, &depthBuffer); glBindRenderbuffer(GL_RENDERBUFFER, depthBuffer); -#if !defined(QT_OPENGL_ES_2) - glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT, size.width(), size.height()); -#else - glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT16, size.width(), size.height()); -#endif + GLenum status = glGetError(); + // glGetError docs advise to call glGetError in loop to clear all error flags + while (status) + status = glGetError(); + if (Utils::isOpenGLES()) + glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT16, size.width(), size.height()); + else + glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT, size.width(), size.height()); + + status = glGetError(); + if (status) { + qCritical() << "Selection texture render buffer creation failed:" << status; + glDeleteTextures(1, &textureid); + glBindRenderbuffer(GL_RENDERBUFFER, 0); + return 0; + } glBindRenderbuffer(GL_RENDERBUFFER, 0); // Create frame buffer @@ -134,10 +210,11 @@ GLuint TextureHelper::createSelectionTexture(const QSize &size, GLuint &frameBuf glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, depthBuffer); // Verify that the frame buffer is complete - GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER); + status = glCheckFramebufferStatus(GL_FRAMEBUFFER); if (status != GL_FRAMEBUFFER_COMPLETE) { - qCritical() << "Frame buffer creation failed" << status; - return 0; + qCritical() << "Selection texture frame buffer creation failed:" << status; + glDeleteTextures(1, &textureid); + textureid = 0; } // Restore the default framebuffer @@ -146,6 +223,31 @@ GLuint TextureHelper::createSelectionTexture(const QSize &size, GLuint &frameBuf return textureid; } +GLuint TextureHelper::createCursorPositionTexture(const QSize &size, GLuint &frameBuffer) +{ + GLuint textureid; + glGenTextures(1, &textureid); + glBindTexture(GL_TEXTURE_2D, textureid); + glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, size.width(), size.height(), 0, GL_RGBA, + GL_UNSIGNED_BYTE, NULL); + glBindTexture(GL_TEXTURE_2D, 0); + + glGenFramebuffers(1, &frameBuffer); + glBindFramebuffer(GL_FRAMEBUFFER, frameBuffer); + glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, + textureid, 0); + + GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER); + if (status != GL_FRAMEBUFFER_COMPLETE) { + qCritical() << "Cursor position mapper frame buffer creation failed:" << status; + glDeleteTextures(1, &textureid); + textureid = 0; + } + glBindFramebuffer(GL_FRAMEBUFFER, 0); + + return textureid; +} + GLuint TextureHelper::createUniformTexture(const QColor &color) { QImage image(QSize(int(uniformTextureWidth), int(uniformTextureHeight)), @@ -170,76 +272,64 @@ GLuint TextureHelper::createGradientTexture(const QLinearGradient &gradient) return create2DTexture(image, false, true, false, true); } -#if !defined(QT_OPENGL_ES_2) GLuint TextureHelper::createDepthTexture(const QSize &size, GLuint textureSize) { - GLuint depthtextureid; - - // Create depth texture for the shadow mapping - glGenTextures(1, &depthtextureid); - glBindTexture(GL_TEXTURE_2D, depthtextureid); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_FUNC, GL_LEQUAL); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE_ARB, GL_COMPARE_R_TO_TEXTURE_ARB); - glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, size.width() * textureSize, - size.height() * textureSize, 0, GL_DEPTH_COMPONENT, GL_FLOAT, NULL); - glBindTexture(GL_TEXTURE_2D, 0); - + GLuint depthtextureid = 0; +#if defined(QT_OPENGL_ES_2) + Q_UNUSED(size) + Q_UNUSED(textureSize) +#else + if (!Utils::isOpenGLES()) { + // Create depth texture for the shadow mapping + glGenTextures(1, &depthtextureid); + glBindTexture(GL_TEXTURE_2D, depthtextureid); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_FUNC, GL_LEQUAL); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE_ARB, GL_COMPARE_R_TO_TEXTURE_ARB); + glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, size.width() * textureSize, + size.height() * textureSize, 0, GL_DEPTH_COMPONENT, GL_FLOAT, NULL); + glBindTexture(GL_TEXTURE_2D, 0); + } +#endif return depthtextureid; } -#endif -#if !defined(QT_OPENGL_ES_2) GLuint TextureHelper::createDepthTextureFrameBuffer(const QSize &size, GLuint &frameBuffer, GLuint textureSize) { GLuint depthtextureid = createDepthTexture(size, textureSize); +#if defined(QT_OPENGL_ES_2) + Q_UNUSED(frameBuffer) +#else + if (!Utils::isOpenGLES()) { + // Create frame buffer + if (!frameBuffer) + glGenFramebuffers(1, &frameBuffer); + glBindFramebuffer(GL_FRAMEBUFFER, frameBuffer); + + // Attach texture to depth attachment + glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, depthtextureid, 0); + + m_openGlFunctions_2_1->glDrawBuffer(GL_NONE); + m_openGlFunctions_2_1->glReadBuffer(GL_NONE); + + // Verify that the frame buffer is complete + GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER); + if (status != GL_FRAMEBUFFER_COMPLETE) { + qCritical() << "Depth texture frame buffer creation failed" << status; + glDeleteTextures(1, &depthtextureid); + depthtextureid = 0; + } - // Create frame buffer - if (!frameBuffer) - glGenFramebuffers(1, &frameBuffer); - glBindFramebuffer(GL_FRAMEBUFFER, frameBuffer); - - // Attach texture to depth attachment - glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, depthtextureid, 0); - - glDrawBuffer(GL_NONE); - glReadBuffer(GL_NONE); - - // Verify that the frame buffer is complete - GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER); - if (status != GL_FRAMEBUFFER_COMPLETE) { - qCritical() << "Frame buffer creation failed" << status; - return 0; + // Restore the default framebuffer + glBindFramebuffer(GL_FRAMEBUFFER, 0); } - - // Restore the default framebuffer - glBindFramebuffer(GL_FRAMEBUFFER, 0); - - return depthtextureid; -} #endif - -#if !defined(QT_OPENGL_ES_2) -void TextureHelper::fillDepthTexture(GLuint texture,const QSize &size, GLuint textureSize, - GLfloat value) -{ - int nItems = size.width() * textureSize * size.height() * textureSize; - GLfloat *bits = new GLfloat[nItems]; - for (int i = 0; i < nItems; i++) - bits[i] = value; - - glBindTexture(GL_TEXTURE_2D, texture); - glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, size.width() * textureSize, - size.height() * textureSize, 0, GL_DEPTH_COMPONENT, GL_FLOAT, bits); - glBindTexture(GL_TEXTURE_2D, 0); - - delete[] bits; + return depthtextureid; } -#endif void TextureHelper::deleteTexture(GLuint *texture) { |