copied from the old Ppoject:
shaders, object class Modified to use better names and use Qt things
This commit is contained in:
Anakin
@@ -1,14 +1,32 @@
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#include "OpenGlViewer.h"
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#include "defines.h"
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#include "Vertex.h"
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#include "..\Header\OpenGlViewer.h"
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#include "..\Header\defines.h"
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#include <iostream>
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static const Vertex sg_vertexes[] = {
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Vertex(QVector3D(0.00f, 0.75f, 1.0f), QVector3D(1.0f, 0.0f, 0.0f)),
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Vertex(QVector3D(0.75f, -0.75f, 1.0f), QVector3D(0.0f, 1.0f, 0.0f)),
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Vertex(QVector3D(-0.75f, -0.75f, 1.0f), QVector3D(0.0f, 0.0f, 1.0f))
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};
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/////////////////////////////////////////////////////////////////////////
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// Defined values
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//opengl
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#define DEFAULT_MAJOR_VERSION 4
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#define DEFAULT_MINOR_VERSION 5
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#define DEAFAULT_BACKGROUND 0.5000f, 0.8000f, 1.0000f, 0.0000f
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//piplines
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#define VERTEX_INDEX_XYZ 0
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#define VERTEX_INDEX_UV 1
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#define VERTEX_COMPONENTS_XYZ 3
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#define VERTEX_COMPONENTS_UV 2
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#define VERTEX_SIZE_XYZ (sizeof(float) * VERTEX_COMPONENTS_XYZ)
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#define VERTEX_SIZE_UV (sizeof(float) * VERTEX_COMPONENTS_UV)
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#define VERTEX_OFFSET_XYZ 0
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#define VERTEX_OFFSET_UV (VERTEX_SIZE_XYZ)
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/////////////////////////////////////////////////////////////////////////
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// public constructor/destructor
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OpenGlViewer::OpenGlViewer(QWidget *parent)
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: QOpenGLWidget(parent)
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@@ -23,9 +41,63 @@ OpenGlViewer::OpenGlViewer(QWidget *parent)
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OpenGlViewer::~OpenGlViewer()
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{
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mVertexArray.destroy();
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mVertexBuffer.destroy();
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delete mProgram;
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m_vertexArray.destroy();
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m_vertexBuffer.destroy();
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delete m_program;
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deleteData();
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}
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/////////////////////////////////////////////////////////////////////////
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// private functions
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void OpenGlViewer::initializeGL()
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{
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initializeOpenGLFunctions();
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printContextInformation();
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//glEnable(GL_DEPTH_TEST);
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glClearColor(DEAFAULT_BACKGROUND);
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m_program = new QOpenGLShaderProgram();
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m_program->addShaderFromSourceFile(QOpenGLShader::Vertex, ":/shaders/simple.vert");
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m_program->addShaderFromSourceFile(QOpenGLShader::Fragment, ":/shaders/simple.frag");
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m_program->link();
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m_program->bind();
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m_vertexBuffer.create();
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m_vertexBuffer.bind();
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m_vertexBuffer.setUsagePattern(QOpenGLBuffer::StaticDraw);
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m_vertexArray.create();
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m_vertexArray.bind();
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m_program->enableAttributeArray(0);
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m_program->enableAttributeArray(1);
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//m_program->setAttributeBuffer(0, GL_FLOAT, Vertex::positionOffset(), Vertex::PositionTupleSize, Vertex::stride());
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//m_program->setAttributeBuffer(1, GL_FLOAT, Vertex::colorOffset(), Vertex::ColorTupleSize, Vertex::stride());
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m_vertexArray.release();
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m_vertexBuffer.release();
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m_program->release();
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}
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void OpenGlViewer::resizeGL(int w, int h)
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{
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//TODO: change perspective
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}
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void OpenGlViewer::paintGL()
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{
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//TODO: paint here
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glClear(GL_COLOR_BUFFER_BIT);
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m_program->bind();
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m_vertexArray.bind();
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//glDrawArrays(GL_TRIANGLES, 0, sizeof(sg_vertexes) / sizeof(sg_vertexes[0]));
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m_vertexArray.release();
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m_program->release();
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}
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void OpenGlViewer::printContextInformation()
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@@ -49,52 +121,69 @@ void OpenGlViewer::printContextInformation()
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std::cout << glType.toStdString() << " - " << glVersion.toStdString() << " (" << glProfile.toStdString() << ")";
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}
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void OpenGlViewer::initializeGL()
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void OpenGlViewer::deleteData()
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{
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initializeOpenGLFunctions();
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printContextInformation();
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if (m_vModels != NULL)
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{
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while (!m_vModels->empty())
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{
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// remove the last Model
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Model* modelVectorElement = m_vModels->back();
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m_vModels->pop_back();
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//glEnable(GL_DEPTH_TEST);
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glClearColor(DEAFAULT_BACKGROUND);
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while (!modelVectorElement->segmList.empty())
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{
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// remove the last Segment
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Segment* segmentVectorElement = modelVectorElement->segmList.back();
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modelVectorElement->segmList.pop_back();
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mProgram = new QOpenGLShaderProgram();
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mProgram->addShaderFromSourceFile(QOpenGLShader::Vertex, ":/shaders/simple.vert");
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mProgram->addShaderFromSourceFile(QOpenGLShader::Fragment, ":/shaders/simple.frag");
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mProgram->link();
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mProgram->bind();
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// delete data from Segment
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delete[] segmentVectorElement->uv;
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delete[] segmentVectorElement->vertex;
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mVertexBuffer.create();
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mVertexBuffer.bind();
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mVertexBuffer.setUsagePattern(QOpenGLBuffer::StaticDraw);
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mVertexBuffer.allocate(sg_vertexes, sizeof(sg_vertexes));
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while (!segmentVectorElement->polyIndices.empty())
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{
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// clear the poly vector and remove it from the list
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segmentVectorElement->polyIndices.back().clear();
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segmentVectorElement->polyIndices.pop_back();
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}
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mVertexArray.create();
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mVertexArray.bind();
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mProgram->enableAttributeArray(0);
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mProgram->enableAttributeArray(1);
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mProgram->setAttributeBuffer(0, GL_FLOAT, Vertex::positionOffset(), Vertex::PositionTupleSize, Vertex::stride());
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mProgram->setAttributeBuffer(1, GL_FLOAT, Vertex::colorOffset(), Vertex::ColorTupleSize, Vertex::stride());
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// delete the actual Segment
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delete segmentVectorElement;
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}
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mVertexArray.release();
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mVertexBuffer.release();
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mProgram->release();
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// delete the actual Model
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delete modelVectorElement;
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}
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// delete the Model's Vector
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delete m_vModels;
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}
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while (!m_vTextures.empty())
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{
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// remove the last texture
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textureData* cursor = m_vTextures.back();
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m_vTextures.pop_back();
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// delete the texture's data
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cursor->data->clear();
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//delete the texture's data vector
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delete cursor->data;
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//delete the texture
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delete cursor;
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}
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}
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void OpenGlViewer::resizeGL(int w, int h)
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/////////////////////////////////////////////////////////////////////////
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// public functions
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void OpenGlViewer::setData(std::vector<Model*>* models, std::vector<textureData*> textures)
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{
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//TODO: change perspective
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}
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void OpenGlViewer::paintGL()
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{
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//TODO: paint here
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glClear(GL_COLOR_BUFFER_BIT);
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mProgram->bind();
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mVertexArray.bind();
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glDrawArrays(GL_TRIANGLES, 0, sizeof(sg_vertexes) / sizeof(sg_vertexes[0]));
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mVertexArray.release();
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mProgram->release();
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m_vModels = models;
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m_vTextures = textures;
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}
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