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| |
| #include "qsgvideonode_egl.h" |
| |
| #include <QtMultimedia/qvideosurfaceformat.h> |
| |
| #include <GLES2/gl2ext.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QSGVideoMaterial_EGLShader : public QSGMaterialShader |
| { |
| public: |
| void updateState(const RenderState &state, QSGMaterial *newEffect, QSGMaterial *oldEffect); |
| char const *const *attributeNames() const; |
| |
| static QSGMaterialType type; |
| |
| protected: |
| void initialize(); |
| |
| const char *vertexShader() const; |
| const char *fragmentShader() const; |
| |
| private: |
| int id_matrix; |
| int id_opacity; |
| int id_texture; |
| }; |
| |
| void QSGVideoMaterial_EGLShader::updateState( |
| const RenderState &state, QSGMaterial *newEffect, QSGMaterial *oldEffect) |
| { |
| QSGVideoMaterial_EGL *material = static_cast<QSGVideoMaterial_EGL *>(newEffect); |
| if (!oldEffect) { |
| program()->setUniformValue(id_texture, 0); |
| } |
| |
| if (state.isMatrixDirty()) { |
| program()->setUniformValue(id_matrix, state.combinedMatrix()); |
| } |
| |
| if (state.isOpacityDirty()) { |
| program()->setUniformValue(id_opacity, state.opacity()); |
| } |
| |
| glActiveTexture(GL_TEXTURE0); |
| glBindTexture(GL_TEXTURE_EXTERNAL_OES, material->m_textureId); |
| } |
| |
| char const *const *QSGVideoMaterial_EGLShader::attributeNames() const |
| { |
| static char const *const attr[] = { "position", "texcoord", 0 }; |
| return attr; |
| } |
| |
| QSGMaterialType QSGVideoMaterial_EGLShader::type; |
| |
| void QSGVideoMaterial_EGLShader::initialize() |
| { |
| id_matrix = program()->uniformLocation("matrix"); |
| id_opacity = program()->uniformLocation("opacity"); |
| id_texture = program()->uniformLocation("texture"); |
| } |
| |
| const char *QSGVideoMaterial_EGLShader::vertexShader() const |
| { |
| return "\n uniform highp mat4 matrix;" |
| "\n attribute highp vec4 position;" |
| "\n attribute highp vec2 texcoord;" |
| "\n varying highp vec2 frag_tx;" |
| "\n void main(void)" |
| "\n {" |
| "\n gl_Position = matrix * position;" |
| "\n frag_tx = texcoord;" |
| "\n }"; |
| } |
| |
| const char *QSGVideoMaterial_EGLShader::fragmentShader() const |
| { |
| return "\n #extension GL_OES_EGL_image_external : require" |
| "\n uniform samplerExternalOES texture;" |
| "\n varying highp vec2 frag_tx;" |
| "\n void main(void)" |
| "\n {" |
| "\n gl_FragColor = texture2D(texture, frag_tx.st);" |
| "\n }"; |
| } |
| |
| QSGVideoMaterial_EGL::QSGVideoMaterial_EGL() |
| : m_image(0) |
| , m_textureId(0) |
| { |
| } |
| |
| QSGVideoMaterial_EGL::~QSGVideoMaterial_EGL() |
| { |
| if (m_textureId) { |
| glDeleteTextures(1, &m_textureId); |
| m_textureId = 0; |
| } |
| } |
| |
| QSGMaterialShader *QSGVideoMaterial_EGL::createShader() const |
| { |
| return new QSGVideoMaterial_EGLShader; |
| } |
| |
| QSGMaterialType *QSGVideoMaterial_EGL::type() const |
| { |
| return &QSGVideoMaterial_EGLShader::type; |
| } |
| |
| int QSGVideoMaterial_EGL::compare(const QSGMaterial *other) const |
| { |
| return m_textureId - static_cast<const QSGVideoMaterial_EGL *>(other)->m_textureId; |
| } |
| |
| void QSGVideoMaterial_EGL::setImage(EGLImageKHR image) |
| { |
| static const PFNGLEGLIMAGETARGETTEXTURE2DOESPROC glEGLImageTargetTexture2DOES |
| = reinterpret_cast<PFNGLEGLIMAGETARGETTEXTURE2DOESPROC>(eglGetProcAddress("glEGLImageTargetTexture2DOES")); |
| |
| if (m_image == image || !glEGLImageTargetTexture2DOES) |
| return; |
| |
| m_image = image; |
| |
| if (!m_image) { |
| if (m_textureId) { |
| glDeleteTextures(1, &m_textureId); |
| m_textureId = 0; |
| } |
| } else { |
| if (!m_textureId) { |
| glGenTextures(1, &m_textureId); |
| glBindTexture(GL_TEXTURE_EXTERNAL_OES, m_textureId); |
| glTexParameterf(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MIN_FILTER, GL_LINEAR); |
| glTexParameterf(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
| glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); |
| glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); |
| } else { |
| glBindTexture(GL_TEXTURE_EXTERNAL_OES, m_textureId); |
| } |
| glEGLImageTargetTexture2DOES(GL_TEXTURE_EXTERNAL_OES, m_image); |
| } |
| } |
| |
| QSGVideoNode_EGL::QSGVideoNode_EGL(const QVideoSurfaceFormat &format) |
| : m_pixelFormat(format.pixelFormat()) |
| { |
| setMaterial(&m_material); |
| } |
| |
| QSGVideoNode_EGL::~QSGVideoNode_EGL() |
| { |
| } |
| |
| void QSGVideoNode_EGL::setCurrentFrame(const QVideoFrame &frame, FrameFlags) |
| { |
| EGLImageKHR image = frame.handle().value<void *>(); |
| m_material.setImage(image); |
| markDirty(DirtyMaterial); |
| } |
| |
| QVideoFrame::PixelFormat QSGVideoNode_EGL::pixelFormat() const |
| { |
| return m_pixelFormat; |
| } |
| |
| QAbstractVideoBuffer::HandleType QSGVideoNode_EGL::handleType() const |
| { |
| return QAbstractVideoBuffer::EGLImageHandle; |
| } |
| |
| static bool isExtensionSupported() |
| { |
| static const bool supported = eglGetProcAddress("glEGLImageTargetTexture2DOES"); |
| return supported; |
| } |
| |
| QList<QVideoFrame::PixelFormat> QSGVideoNodeFactory_EGL::supportedPixelFormats( |
| QAbstractVideoBuffer::HandleType handleType) const |
| { |
| if (handleType != QAbstractVideoBuffer::EGLImageHandle || !isExtensionSupported()) |
| return QList<QVideoFrame::PixelFormat>(); |
| |
| return QList<QVideoFrame::PixelFormat>() |
| << QVideoFrame::Format_Invalid |
| << QVideoFrame::Format_YV12 |
| << QVideoFrame::Format_UYVY |
| << QVideoFrame::Format_NV21 |
| << QVideoFrame::Format_YUYV |
| << QVideoFrame::Format_RGB32 |
| << QVideoFrame::Format_BGR32 |
| << QVideoFrame::Format_RGB24 |
| << QVideoFrame::Format_BGR24 |
| << QVideoFrame::Format_RGB565 |
| << QVideoFrame::Format_BGR565; |
| } |
| |
| QSGVideoNode *QSGVideoNodeFactory_EGL::createNode(const QVideoSurfaceFormat &format) |
| { |
| return format.handleType() == QAbstractVideoBuffer::EGLImageHandle && isExtensionSupported() |
| ? new QSGVideoNode_EGL(format) |
| : 0; |
| } |
| |
| QT_END_NAMESPACE |