From 9c02a1a40340ca6d90bb1b2441e5ce59d3523f4e Mon Sep 17 00:00:00 2001 From: Barry <870709864@qq.com> Date: Sun, 4 Nov 2018 12:46:43 +0800 Subject: [PATCH] =?UTF-8?q?mark=EF=BC=9Aqt=20opengl=E6=9C=80=E7=BB=88?= =?UTF-8?q?=E7=89=88=EF=BC=88qt=20opengl+opengl=E5=8E=9F=E7=94=9F=E6=B7=B7?= =?UTF-8?q?=E5=90=88=E7=BC=96=E7=A8=8B=EF=BC=89?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- src/qyuvopenglwidget.cpp | 135 +++++++++++++-------------------------- src/qyuvopenglwidget.h | 8 +-- 2 files changed, 47 insertions(+), 96 deletions(-) diff --git a/src/qyuvopenglwidget.cpp b/src/qyuvopenglwidget.cpp index 342ea89..cc81cf0 100644 --- a/src/qyuvopenglwidget.cpp +++ b/src/qyuvopenglwidget.cpp @@ -1,6 +1,5 @@ #include #include -#include #include "qyuvopenglwidget.h" @@ -65,9 +64,7 @@ static QString s_fragShader = R"( QYUVOpenGLWidget::QYUVOpenGLWidget(QWidget *parent) : QOpenGLWidget(parent) { - m_textureY = new QOpenGLTexture(QOpenGLTexture::Target2D); - m_textureU = new QOpenGLTexture(QOpenGLTexture::Target2D); - m_textureV = new QOpenGLTexture(QOpenGLTexture::Target2D); + } QYUVOpenGLWidget::~QYUVOpenGLWidget() @@ -75,19 +72,6 @@ QYUVOpenGLWidget::~QYUVOpenGLWidget() makeCurrent(); m_vbo.destroy(); deInitTextures(); - - if (m_textureY) { - delete m_textureY; - m_textureY = Q_NULLPTR; - } - if (m_textureU) { - delete m_textureU; - m_textureU = Q_NULLPTR; - } - if (m_textureV) { - delete m_textureV; - m_textureV = Q_NULLPTR; - } doneCurrent(); } @@ -106,28 +90,14 @@ void QYUVOpenGLWidget::setFrameSize(const QSize &frameSize) if (m_frameSize != frameSize) { m_frameSize = frameSize; m_needUpdate = true; - repaint(); } } void QYUVOpenGLWidget::updateTextures(quint8 *dataY, quint8 *dataU, quint8 *dataV, quint32 linesizeY, quint32 linesizeU, quint32 linesizeV) { - if (m_frameSize.isEmpty()) { - return; - } - QOpenGLPixelTransferOptions options; - if (m_textureY->isStorageAllocated()) { - options.setRowLength(linesizeY); - m_textureY->setData(QOpenGLTexture::Luminance, QOpenGLTexture::UInt8,dataY, &options); - } - if (m_textureU->isStorageAllocated()) { - options.setRowLength(linesizeU); - m_textureU->setData(QOpenGLTexture::Luminance, QOpenGLTexture::UInt8,dataU, &options); - } - if (m_textureV->isStorageAllocated()) { - options.setRowLength(linesizeV); - m_textureV->setData(QOpenGLTexture::Luminance, QOpenGLTexture::UInt8,dataV, &options); - } + updateTexture(m_texture[0], 0, dataY, linesizeY); + updateTexture(m_texture[1], 1, dataU, linesizeU); + updateTexture(m_texture[2], 2, dataV, linesizeV); update(); } @@ -149,23 +119,21 @@ void QYUVOpenGLWidget::initializeGL() void QYUVOpenGLWidget::paintGL() { - if (m_frameSize.isEmpty()) { - return; - } if (m_needUpdate) { - initTextures(); + //TODO 需要deInitTextures吗 + deInitTextures(); + initTextures(); m_needUpdate = false; } - if (m_textureY->isStorageAllocated()) { - m_textureY->bind(0); - } - if (m_textureU->isStorageAllocated()) { - m_textureU->bind(1); - } - if (m_textureV->isStorageAllocated()) { - m_textureV->bind(2); - } + glActiveTexture(GL_TEXTURE0); + glBindTexture(GL_TEXTURE_2D, m_texture[0]); + + glActiveTexture(GL_TEXTURE1); + glBindTexture(GL_TEXTURE_2D, m_texture[1]); + + glActiveTexture(GL_TEXTURE2); + glBindTexture(GL_TEXTURE_2D, m_texture[2]); glDrawArrays(GL_TRIANGLE_STRIP, 0, 4); @@ -210,55 +178,42 @@ void QYUVOpenGLWidget::initShader() } void QYUVOpenGLWidget::initTextures() -{ - deInitTextures(); - if (m_textureY) { - m_textureY->create(); - m_textureY->setSize(m_frameSize.width(), m_frameSize.height()); - // 设置纹理缩放时的策略 - m_textureY->setMinificationFilter(QOpenGLTexture::Linear); - m_textureY->setMagnificationFilter(QOpenGLTexture::Linear); - // 设置所有方向上纹理超出坐标时的显示策略（也可单个方向单独设置） - m_textureY->setWrapMode(QOpenGLTexture::ClampToEdge); - m_textureY->setMipLevels(1); - m_textureY->setFormat(QOpenGLTexture::LuminanceFormat); - m_textureY->allocateStorage(QOpenGLTexture::Luminance, QOpenGLTexture::UInt8); - } +{ + // 创建纹理 + glGenTextures(1, &m_texture[0]); + glBindTexture(GL_TEXTURE_2D, m_texture[0]); + // 设置纹理缩放时的策略 + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + // 设置st方向上纹理超出坐标时的显示策略 + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, m_frameSize.width(), m_frameSize.height(), 0, GL_RED, GL_UNSIGNED_BYTE, NULL); - if (m_textureU) { - m_textureU->create(); - m_textureU->setSize(m_frameSize.width()/2, m_frameSize.height()/2); - m_textureU->setMinificationFilter(QOpenGLTexture::Linear); - m_textureU->setMagnificationFilter(QOpenGLTexture::Linear); - m_textureU->setWrapMode(QOpenGLTexture::ClampToEdge); - m_textureU->setMipLevels(1); - m_textureU->setFormat(QOpenGLTexture::LuminanceFormat); - m_textureU->allocateStorage(QOpenGLTexture::Luminance, QOpenGLTexture::UInt8); - } + glGenTextures(1, &m_texture[1]); + glBindTexture(GL_TEXTURE_2D, m_texture[1]); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, m_frameSize.width()/2, m_frameSize.height()/2, 0, GL_RED, GL_UNSIGNED_BYTE, NULL); + + glGenTextures(1, &m_texture[2]); + glBindTexture(GL_TEXTURE_2D, m_texture[2]); + // 设置纹理缩放时的策略 + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + // 设置st方向上纹理超出坐标时的显示策略 + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, m_frameSize.width()/2, m_frameSize.height()/2, 0, GL_RED, GL_UNSIGNED_BYTE, NULL); - if (m_textureV) { - m_textureV->create(); - m_textureV->setSize(m_frameSize.width()/2, m_frameSize.height()/2); - m_textureV->setMinificationFilter(QOpenGLTexture::Linear); - m_textureV->setMagnificationFilter(QOpenGLTexture::Linear); - m_textureV->setWrapMode(QOpenGLTexture::ClampToEdge); - m_textureV->setMipLevels(1); - m_textureV->setFormat(QOpenGLTexture::LuminanceFormat); - m_textureV->allocateStorage(QOpenGLTexture::Luminance, QOpenGLTexture::UInt8); - } } void QYUVOpenGLWidget::deInitTextures() { - if (m_textureY) { - m_textureY->destroy(); - } - if (m_textureU) { - m_textureU->destroy(); - } - if (m_textureV) { - m_textureV->destroy(); - } + glDeleteTextures(3, m_texture); + memset(m_texture, 0, 3); } void QYUVOpenGLWidget::updateTexture(GLuint texture, quint32 textureType, quint8 *pixels, quint32 stride) diff --git a/src/qyuvopenglwidget.h b/src/qyuvopenglwidget.h index 5202bb8..deeebee 100644 --- a/src/qyuvopenglwidget.h +++ b/src/qyuvopenglwidget.h @@ -1,12 +1,10 @@ #ifndef QYUVOPENGLWIDGET_H #define QYUVOPENGLWIDGET_H - #include #include #include #include -QT_FORWARD_DECLARE_CLASS(QOpenGLTexture) class QYUVOpenGLWidget : public QOpenGLWidget, protected QOpenGLFunctions { Q_OBJECT @@ -40,12 +38,10 @@ private: QOpenGLBuffer m_vbo; // 着色器程序：编译链接着色器 - QOpenGLShaderProgram m_shaderProgram; + QOpenGLShaderProgram m_shaderProgram; // YUV纹理，用于生成纹理贴图 - QOpenGLTexture* m_textureY = Q_NULLPTR; - QOpenGLTexture* m_textureU = Q_NULLPTR; - QOpenGLTexture* m_textureV = Q_NULLPTR; + GLuint m_texture[3] = {0}; }; #endif // QYUVOPENGLWIDGET_H