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Diffstat (limited to 'examples/wayland/qwindow-compositor/textureblitter.cpp')
| -rw-r--r-- | examples/wayland/qwindow-compositor/textureblitter.cpp | 199 |
1 files changed, 0 insertions, 199 deletions
diff --git a/examples/wayland/qwindow-compositor/textureblitter.cpp b/examples/wayland/qwindow-compositor/textureblitter.cpp deleted file mode 100644 index df4fa18d8..000000000 --- a/examples/wayland/qwindow-compositor/textureblitter.cpp +++ /dev/null @@ -1,199 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2015 The Qt Company Ltd. -** Contact: http://www.qt.io/licensing/ -** -** This file is part of the Qt Compositor. -** -** $QT_BEGIN_LICENSE:BSD$ -** You may use this file under the terms of the BSD license as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of The Qt Company Ltd nor the names of its -** contributors may be used to endorse or promote products derived -** from this software without specific prior written permission. -** -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "textureblitter.h" - -#include <QtGui/QOpenGLShaderProgram> -#include <QtGui/QOpenGLContext> -#include <QtGui/QOpenGLFunctions> - -#ifndef GL_TEXTURE_EXTERNAL_OES -#define GL_TEXTURE_EXTERNAL_OES 0x8D65 -#endif - -QT_BEGIN_NAMESPACE - -TextureBlitter::TextureBlitter() - : m_shaderProgram(new QOpenGLShaderProgram) - , m_shaderProgramExternal(new QOpenGLShaderProgram) - , m_currentProgram(0) - , m_currentTarget(GL_TEXTURE_2D) -{ - static const char *textureVertexProgram = - "uniform highp mat4 matrix;\n" - "attribute highp vec3 vertexCoordEntry;\n" - "attribute highp vec2 textureCoordEntry;\n" - "varying highp vec2 textureCoord;\n" - "void main() {\n" - " textureCoord = textureCoordEntry;\n" - " gl_Position = matrix * vec4(vertexCoordEntry, 1);\n" - "}\n"; - - static const char *textureFragmentProgram = - "uniform sampler2D texture;\n" - "varying highp vec2 textureCoord;\n" - "void main() {\n" - " gl_FragColor = texture2D(texture, textureCoord);\n" - "}\n"; - - static const char *textureFragmentProgramExternal = - "#extension GL_OES_EGL_image_external : require\n" - "uniform samplerExternalOES texture;\n" - "varying highp vec2 textureCoord;\n" - "void main() {\n" - " gl_FragColor = texture2D(texture, textureCoord);\n" - "}\n"; - - m_shaderProgram->addShaderFromSourceCode(QOpenGLShader::Vertex, textureVertexProgram); - m_shaderProgram->addShaderFromSourceCode(QOpenGLShader::Fragment, textureFragmentProgram); - m_shaderProgram->link(); - - m_shaderProgramExternal->addShaderFromSourceCode(QOpenGLShader::Vertex, textureVertexProgram); - m_shaderProgramExternal->addShaderFromSourceCode(QOpenGLShader::Fragment, textureFragmentProgramExternal); - m_shaderProgramExternal->link(); -} - -TextureBlitter::~TextureBlitter() -{ - delete m_shaderProgram; - delete m_shaderProgramExternal; -} - -void TextureBlitter::bind(quint32 target) -{ - m_currentTarget = target; - switch (target) { - case GL_TEXTURE_2D: - m_currentProgram = m_shaderProgram; - break; - case GL_TEXTURE_EXTERNAL_OES: - m_currentProgram = m_shaderProgramExternal; - break; - default: - qFatal("INVALID TARGET TYPE %d", target); - break; - } - - m_currentProgram->bind(); - - m_vertexCoordEntry = m_shaderProgram->attributeLocation("vertexCoordEntry"); - m_textureCoordEntry = m_shaderProgram->attributeLocation("textureCoordEntry"); - m_matrixLocation = m_shaderProgram->uniformLocation("matrix"); - - //Enable transparent windows - glEnable(GL_BLEND); - glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); -} - -void TextureBlitter::release() -{ - m_currentProgram->release(); -} - -void TextureBlitter::drawTexture(int textureId, const QRectF &targetRect, const QSize &targetSize, int depth, bool targethasInvertedY, bool sourceHasInvertedY) -{ - - glViewport(0,0,targetSize.width(),targetSize.height()); - GLfloat zValue = depth / 1000.0f; - //Set Texture and Vertex coordinates - const GLfloat textureCoordinates[] = { - 0, 0, - 1, 0, - 1, 1, - 0, 1 - }; - - GLfloat x1 = targetRect.left(); - GLfloat x2 = targetRect.right(); - GLfloat y1, y2; - if (targethasInvertedY) { - if (sourceHasInvertedY) { - y1 = targetRect.top(); - y2 = targetRect.bottom(); - } else { - y1 = targetRect.bottom(); - y2 = targetRect.top(); - } - } else { - if (sourceHasInvertedY) { - y1 = targetSize.height() - targetRect.top(); - y2 = targetSize.height() - targetRect.bottom(); - } else { - y1 = targetSize.height() - targetRect.bottom(); - y2 = targetSize.height() - targetRect.top(); - } - } - - const GLfloat vertexCoordinates[] = { - GLfloat(x1), GLfloat(y1), zValue, - GLfloat(x2), GLfloat(y1), zValue, - GLfloat(x2), GLfloat(y2), zValue, - GLfloat(x1), GLfloat(y2), zValue - }; - - //Set matrix to transfrom geometry values into gl coordinate space. - m_transformMatrix.setToIdentity(); - m_transformMatrix.scale( 2.0f / targetSize.width(), 2.0f / targetSize.height() ); - m_transformMatrix.translate(-targetSize.width() / 2.0f, -targetSize.height() / 2.0f); - - //attach the data! - QOpenGLContext *currentContext = QOpenGLContext::currentContext(); - currentContext->functions()->glEnableVertexAttribArray(m_vertexCoordEntry); - currentContext->functions()->glEnableVertexAttribArray(m_textureCoordEntry); - - currentContext->functions()->glVertexAttribPointer(m_vertexCoordEntry, 3, GL_FLOAT, GL_FALSE, 0, vertexCoordinates); - currentContext->functions()->glVertexAttribPointer(m_textureCoordEntry, 2, GL_FLOAT, GL_FALSE, 0, textureCoordinates); - - m_currentProgram->setUniformValue(m_matrixLocation, m_transformMatrix); - - glBindTexture(m_currentTarget, textureId); - - glTexParameterf(m_currentTarget, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - glTexParameterf(m_currentTarget, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - - glDrawArrays(GL_TRIANGLE_FAN, 0, 4); - - glBindTexture(m_currentTarget, 0); - - currentContext->functions()->glDisableVertexAttribArray(m_vertexCoordEntry); - currentContext->functions()->glDisableVertexAttribArray(m_textureCoordEntry); -} - -QT_END_NAMESPACE |