summaryrefslogtreecommitdiffstats
path: root/src/imports/multimedia/qsgvideonode_i420.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/imports/multimedia/qsgvideonode_i420.cpp')
-rw-r--r--src/imports/multimedia/qsgvideonode_i420.cpp296
1 files changed, 0 insertions, 296 deletions
diff --git a/src/imports/multimedia/qsgvideonode_i420.cpp b/src/imports/multimedia/qsgvideonode_i420.cpp
deleted file mode 100644
index 11135c1..0000000
--- a/src/imports/multimedia/qsgvideonode_i420.cpp
+++ /dev/null
@@ -1,296 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** GNU Lesser General Public License Usage
-** 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 1.1, 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.
-**
-** Other Usage
-** Alternatively, this file may be used in accordance with the terms and
-** conditions contained in a signed written agreement between you and Nokia.
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-#include "qsgvideonode_i420.h"
-#include <QtDeclarative/qsgtexturematerial.h>
-#include <QtDeclarative/qsgmaterial.h>
-#include <QtGui/QOpenGLContext>
-#include <QtGui/QOpenGLFunctions>
-#include <QtOpenGL/qglshaderprogram.h>
-
-QList<QVideoFrame::PixelFormat> QSGVideoNodeFactory_I420::supportedPixelFormats(
- QAbstractVideoBuffer::HandleType handleType) const
-{
- QList<QVideoFrame::PixelFormat> formats;
-
- if (handleType == QAbstractVideoBuffer::NoHandle)
- formats << QVideoFrame::Format_YUV420P << QVideoFrame::Format_YV12;
-
- return formats;
-}
-
-QSGVideoNode *QSGVideoNodeFactory_I420::createNode(const QVideoSurfaceFormat &format)
-{
- if (supportedPixelFormats(format.handleType()).contains(format.pixelFormat()))
- return new QSGVideoNode_I420(format);
-
- return 0;
-}
-
-
-class QSGVideoMaterialShader_YUV420 : public QSGMaterialShader
-{
-public:
- void updateState(const RenderState &state, QSGMaterial *newMaterial, QSGMaterial *oldMaterial);
-
- virtual char const *const *attributeNames() const {
- static const char *names[] = {
- "qt_VertexPosition",
- "qt_VertexTexCoord",
- 0
- };
- return names;
- }
-
-protected:
-
- virtual const char *vertexShader() const {
- const char *shader =
- "uniform highp mat4 qt_Matrix; \n"
- "attribute highp vec4 qt_VertexPosition; \n"
- "attribute highp vec2 qt_VertexTexCoord; \n"
- "varying highp vec2 qt_TexCoord; \n"
- "void main() { \n"
- " qt_TexCoord = qt_VertexTexCoord; \n"
- " gl_Position = qt_Matrix * qt_VertexPosition; \n"
- "}";
- return shader;
- }
-
- virtual const char *fragmentShader() const {
- static const char *shader =
- "uniform sampler2D yTexture;"
- "uniform sampler2D uTexture;"
- "uniform sampler2D vTexture;"
- "uniform mediump mat4 colorMatrix;"
- "uniform lowp float opacity;"
- ""
- "varying highp vec2 qt_TexCoord;"
- ""
- "void main()"
- "{"
- " mediump float Y = texture2D(yTexture, qt_TexCoord).r;"
- " mediump float U = texture2D(uTexture, qt_TexCoord).r;"
- " mediump float V = texture2D(vTexture, qt_TexCoord).r;"
- " mediump vec4 color = vec4(Y, U, V, 1.);"
- " gl_FragColor = colorMatrix * color * opacity;"
- "}";
- return shader;
- }
-
- virtual void initialize() {
- m_id_matrix = program()->uniformLocation("qt_Matrix");
- m_id_yTexture = program()->uniformLocation("yTexture");
- m_id_uTexture = program()->uniformLocation("uTexture");
- m_id_vTexture = program()->uniformLocation("vTexture");
- m_id_colorMatrix = program()->uniformLocation("colorMatrix");
- m_id_opacity = program()->uniformLocation("opacity");
- }
-
- int m_id_matrix;
- int m_id_yTexture;
- int m_id_uTexture;
- int m_id_vTexture;
- int m_id_colorMatrix;
- int m_id_opacity;
-};
-
-
-class QSGVideoMaterial_YUV420 : public QSGMaterial
-{
-public:
- QSGVideoMaterial_YUV420(const QVideoSurfaceFormat &format)
- {
- switch (format.yCbCrColorSpace()) {
- case QVideoSurfaceFormat::YCbCr_JPEG:
- colorMatrix = QMatrix4x4(
- 1.0, 0.000, 1.402, -0.701,
- 1.0, -0.344, -0.714, 0.529,
- 1.0, 1.772, 0.000, -0.886,
- 0.0, 0.000, 0.000, 1.0000);
- break;
- case QVideoSurfaceFormat::YCbCr_BT709:
- case QVideoSurfaceFormat::YCbCr_xvYCC709:
- colorMatrix = QMatrix4x4(
- 1.164, 0.000, 1.793, -0.5727,
- 1.164, -0.534, -0.213, 0.3007,
- 1.164, 2.115, 0.000, -1.1302,
- 0.0, 0.000, 0.000, 1.0000);
- break;
- default: //BT 601:
- colorMatrix = QMatrix4x4(
- 1.164, 0.000, 1.596, -0.8708,
- 1.164, -0.392, -0.813, 0.5296,
- 1.164, 2.017, 0.000, -1.081,
- 0.0, 0.000, 0.000, 1.0000);
- }
-
- setFlag(Blending, false);
- }
-
- virtual QSGMaterialType *type() const {
- static QSGMaterialType theType;
- return &theType;
- }
-
- virtual QSGMaterialShader *createShader() const {
- return new QSGVideoMaterialShader_YUV420;
- }
-
- virtual int compare(const QSGMaterial *other) const {
- const QSGVideoMaterial_YUV420 *m = static_cast<const QSGVideoMaterial_YUV420 *>(other);
- int d = idY - m->idY;
- if (d)
- return d;
- else if ((d = idU - m->idU) != 0)
- return d;
- else
- return idV - m->idV;
- }
-
- void updateBlending() {
- setFlag(Blending, qFuzzyCompare(opacity, 1.0) ? false : true);
- }
-
- GLuint idY;
- GLuint idU;
- GLuint idV;
- qreal opacity;
- QMatrix4x4 colorMatrix;
-};
-
-
-QSGVideoNode_I420::QSGVideoNode_I420(const QVideoSurfaceFormat &format) :
- m_width(0),
- m_height(0),
- m_format(format)
-{
- m_material = new QSGVideoMaterial_YUV420(format);
- setMaterial(m_material);
- m_material->opacity = 1;
-}
-
-QSGVideoNode_I420::~QSGVideoNode_I420()
-{
- if (m_width != 0 && m_height != 0)
- glDeleteTextures(3, m_id);
-}
-
-void QSGVideoNode_I420::setCurrentFrame(const QVideoFrame &frame)
-{
- m_frame = frame;
-
- m_frame.map(QAbstractVideoBuffer::ReadOnly);
-
- int fw = frame.width();
- int fh = frame.height();
-
- // Frame has changed size, recreate textures...
- if (fw != m_width || fh != m_height) {
- if (m_width != 0 && m_height != 0)
- glDeleteTextures(3, m_id);
- glGenTextures(3, m_id);
- m_width = fw;
- m_height = fh;
-
- m_material->idY = m_id[0];
- m_material->idU = m_id[1];
- m_material->idV = m_id[2];
- }
-
- const uchar *bits = frame.bits();
- int bpl = frame.bytesPerLine();
- int bpl2 = (bpl / 2 + 3) & ~3;
- int offsetU = bpl * fh;
- int offsetV = bpl * fh + bpl2 * fh / 2;
-
- if (m_frame.pixelFormat() == QVideoFrame::Format_YV12)
- qSwap(offsetU, offsetV);
-
- bindTexture(m_id[0], GL_TEXTURE0, fw, fh, bits);
- bindTexture(m_id[1], GL_TEXTURE1, fw/2, fh / 2, bits + offsetU);
- bindTexture(m_id[2], GL_TEXTURE2, fw/2, fh / 2, bits + offsetV);
-
- m_frame.unmap();
-
- markDirty(DirtyMaterial);
-}
-
-void QSGVideoNode_I420::bindTexture(int id, int unit, int w, int h, const uchar *bits)
-{
- QOpenGLFunctions *functions = QOpenGLContext::currentContext()->functions();
- functions->glActiveTexture(unit);
- glBindTexture(GL_TEXTURE_2D, id);
- glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE, w, h, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, bits);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_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);
-}
-
-
-void QSGVideoMaterialShader_YUV420::updateState(const RenderState &state,
- QSGMaterial *newMaterial,
- QSGMaterial *oldMaterial)
-{
- Q_UNUSED(oldMaterial);
-
- QOpenGLFunctions *functions = state.context()->functions();
- QSGVideoMaterial_YUV420 *mat = static_cast<QSGVideoMaterial_YUV420 *>(newMaterial);
- program()->setUniformValue(m_id_yTexture, 0);
- program()->setUniformValue(m_id_uTexture, 1);
- program()->setUniformValue(m_id_vTexture, 2);
-
- functions->glActiveTexture(GL_TEXTURE0);
- glBindTexture(GL_TEXTURE_2D, mat->idY);
- functions->glActiveTexture(GL_TEXTURE1);
- glBindTexture(GL_TEXTURE_2D, mat->idU);
- functions->glActiveTexture(GL_TEXTURE2);
- glBindTexture(GL_TEXTURE_2D, mat->idV);
-
- program()->setUniformValue(m_id_colorMatrix, mat->colorMatrix);
- if (state.isOpacityDirty()) {
- mat->opacity = state.opacity();
- program()->setUniformValue(m_id_opacity, GLfloat(mat->opacity));
- }
-
- if (state.isMatrixDirty())
- program()->setUniformValue(m_id_matrix, state.combinedMatrix());
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-02 10:29:31 +0000