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qt opengl

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rankun 2018-11-02 18:33:35 +08:00
parent e45991c531
commit c7c1f30252
3 changed files with 91 additions and 21 deletions
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2
src/main.cpp
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@ -17,7 +17,7 @@ int main(int argc, char *argv[])
qputenv("QTSCRCPY_SERVER_PATH", "G:\\mygitcode\\QtScrcpy\\src\\scrcpy-server.jar");
Dialog w;
//w.move(50, 930);
w.move(50, 930);
w.show();
return a.exec();

102
src/qyuvopenglwidget.cpp
View file

@ -1,5 +1,6 @@
#include <QCoreApplication>
#include <QOpenGLTexture>
#include <QOpenGLPixelTransferOptions>
#include "qyuvopenglwidget.h"
@ -64,7 +65,9 @@ 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()
@ -72,6 +75,19 @@ 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();
}
@ -95,9 +111,19 @@ void QYUVOpenGLWidget::setFrameSize(const QSize &frameSize)
void QYUVOpenGLWidget::updateTextures(quint8 *dataY, quint8 *dataU, quint8 *dataV, quint32 linesizeY, quint32 linesizeU, quint32 linesizeV)
{
updateTexture(m_texture[0], 0, dataY, linesizeY);
updateTexture(m_texture[1], 1, dataU, linesizeU);
updateTexture(m_texture[2], 2, dataV, linesizeV);
if (m_textureY->textureId()) {
QOpenGLPixelTransferOptions options;
options.setRowLength(linesizeY);
m_textureY->setData(QOpenGLTexture::Red, QOpenGLTexture::UInt8,dataY, &options);
options.setRowLength(linesizeU);
m_textureU->setData(QOpenGLTexture::Red, QOpenGLTexture::UInt8,dataU, &options);
options.setRowLength(linesizeV);
m_textureV->setData(QOpenGLTexture::Red, 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();
}
@ -121,10 +147,17 @@ void QYUVOpenGLWidget::paintGL()
{
if (m_needInit) {
//TODO 需要deInitTextures吗
initTextures();
initTextures();
m_needInit = false;
}
if (m_textureY->textureId()) {
m_textureY->bind(0);
m_textureU->bind(1);
m_textureV->bind(2);
}
/*
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, m_texture[0]);
@ -133,6 +166,7 @@ void QYUVOpenGLWidget::paintGL()
glActiveTexture(GL_TEXTURE2);
glBindTexture(GL_TEXTURE_2D, m_texture[2]);
*/
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
@ -178,15 +212,43 @@ 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::R8_UNorm);
m_textureY->allocateStorage();
}
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::R8_UNorm);
m_textureU->allocateStorage();
}
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::R8_UNorm);
m_textureV->allocateStorage();
}
/*
// 创建纹理
m_textrueY = new QOpenGLTexture(QOpenGLTexture::Target2D);
// 设置纹理缩放时的策略
m_textrueY->setMinificationFilter(QOpenGLTexture::Linear);
m_textrueY->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_textrueY->setWrapMode(QOpenGLTexture::ClampToEdge);
*/
// 创建纹理
glGenTextures(1, &m_texture[0]);
glBindTexture(GL_TEXTURE_2D, m_texture[0]);
@ -215,13 +277,21 @@ void QYUVOpenGLWidget::initTextures()
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);
*/
}
void QYUVOpenGLWidget::deInitTextures()
{
glDeleteTextures(3, m_texture);
memset(m_texture, 0, 3);
if (m_textureY) {
m_textureY->destroy();
}
if (m_textureU) {
m_textureU->destroy();
}
if (m_textureV) {
m_textureV->destroy();
}
}
void QYUVOpenGLWidget::updateTexture(GLuint texture, quint32 textureType, quint8 *pixels, quint32 stride)

8
src/qyuvopenglwidget.h
View file

@ -5,7 +5,7 @@
#include <QOpenGLShaderProgram>
#include <QOpenGLBuffer>
//QT_FORWARD_DECLARE_CLASS(QOpenGLTexture) //TODO先不用QOpenGLTexture，Texture先使用opengl原生方式
QT_FORWARD_DECLARE_CLASS(QOpenGLTexture)
class QYUVOpenGLWidget : public QOpenGLWidget, protected QOpenGLFunctions
{
Q_OBJECT
@ -42,9 +42,9 @@ private:
QOpenGLShaderProgram m_shaderProgram;
// YUV纹理，用于生成纹理贴图
//QOpenGLTexture* m_textrueY = Q_NULLPTR;
//QOpenGLTexture* m_textrueU = Q_NULLPTR;
//QOpenGLTexture* m_textrueV = Q_NULLPTR;
QOpenGLTexture* m_textureY = Q_NULLPTR;
QOpenGLTexture* m_textureU = Q_NULLPTR;
QOpenGLTexture* m_textureV = Q_NULLPTR;
// YUV纹理，用于生成纹理贴图
GLuint m_texture[3] = {0};