comparison: src/gl/gridprogram.cpp
src/gl/gridprogram.cpp
- changeset 70
- f21b800b02a4
- parent 64
- f99d52b1646b
- child 72
- 7c27cda03747
equal
deleted
inserted
replaced
| 69:a36913fc552a | 70:f21b800b02a4 |
|---|---|
| 62 } | 62 } |
| 63 )"; | 63 )"; |
| 64 | 64 |
| 65 static const glm::vec2 data[] = {{-1, -1}, {-1, 1}, {1, 1}, {1, -1}}; | 65 static const glm::vec2 data[] = {{-1, -1}, {-1, 1}, {1, 1}, {1, -1}}; |
| 66 | 66 |
| 67 GridProgram::GridProgram(QObject* parent) : | |
| 68 QObject{parent}, | |
| 69 buffer{QOpenGLBuffer::VertexBuffer}, | |
| 70 vertexShader{QOpenGLShader::Vertex}, | |
| 71 fragmentShader{QOpenGLShader::Fragment} | |
| 72 { | |
| 73 } | |
| 74 | |
| 75 void GridProgram::initialize() | |
| 76 { | |
| 77 if (not isInitialized) | |
| 78 { | |
| 79 this->initializeOpenGLFunctions(); | |
| 80 this->isInitialized = true; | |
| 81 this->program.emplace(this); | |
| 82 gl::buildShaders(&*this->program, ::vertexShaderSource, ::fragmentShaderSource); | |
| 83 this->program->bind(); | |
| 84 this->buffer.create(); | |
| 85 this->buffer.bind(); | |
| 86 this->buffer.setUsagePattern(QOpenGLBuffer::StaticDraw); | |
| 87 this->buffer.allocate(data, countof(data) * sizeof data[0]); | |
| 88 this->vertexArrayObject.create(); | |
| 89 this->vertexArrayObject.bind(); | |
| 90 this->program->enableAttributeArray(0); | |
| 91 this->program->setAttributeBuffer(0, GL_FLOAT, 0, 2, 0); | |
| 92 this->program->setUniformVector("gridColor", this->gridColor); | |
| 93 this->vertexArrayObject.release(); | |
| 94 this->buffer.release(); | |
| 95 this->program->release(); | |
| 96 this->checkForGLErrors(); | |
| 97 } | |
| 98 } | |
| 99 | |
| 100 void GridProgram::setViewMatrix(const glm::mat4& newViewMatrix) | |
| 101 { | |
| 102 this->setMatrix("view", newViewMatrix); | |
| 103 } | |
| 104 | |
| 105 void GridProgram::setProjectionMatrix(const glm::mat4& newProjectionMatrix) | |
| 106 { | |
| 107 this->setMatrix("projection", newProjectionMatrix); | |
| 108 } | |
| 109 | |
| 110 void GridProgram::setModelMatrix(const glm::mat4& newModelMatrix) | |
| 111 { | |
| 112 this->setMatrix("model", newModelMatrix); | |
| 113 } | |
| 114 | |
| 115 void GridProgram::setGridMatrix(const glm::mat4& newGridMatrix) | 67 void GridProgram::setGridMatrix(const glm::mat4& newGridMatrix) |
| 116 { | 68 { |
| 117 this->setMatrix("grid", newGridMatrix); | 69 this->setMatrix("grid", newGridMatrix); |
| 118 } | |
| 119 | |
| 120 void GridProgram::setMatrix(const char* name, const glm::mat4& matrix) | |
| 121 { | |
| 122 Q_ASSERT(this->isInitialized); | |
| 123 this->program->bind(); | |
| 124 this->program->setUniformMatrix(name, matrix); | |
| 125 this->program->release(); | |
| 126 this->checkForGLErrors(); | |
| 127 } | 70 } |
| 128 | 71 |
| 129 void GridProgram::setGridColor(const QColor& newGridColor) | 72 void GridProgram::setGridColor(const QColor& newGridColor) |
| 130 { | 73 { |
| 131 const glm::vec4 vec = gl::colorToVector4(newGridColor); | 74 const glm::vec4 vec = gl::colorToVector4(newGridColor); |
| 140 { | 83 { |
| 141 this->gridColor = vec; | 84 this->gridColor = vec; |
| 142 } | 85 } |
| 143 } | 86 } |
| 144 | 87 |
| 145 void GridProgram::draw() | 88 const char* GridProgram::vertexShaderSource() const |
| 146 { | 89 { |
| 147 this->program->bind(); | 90 return ::vertexShaderSource; |
| 148 this->vertexArrayObject.bind(); | |
| 149 glDrawArrays(GL_QUADS, 0, countof(data)); | |
| 150 this->vertexArrayObject.release(); | |
| 151 this->program->release(); | |
| 152 this->checkForGLErrors(); | |
| 153 } | 91 } |
| 154 | 92 |
| 155 void GridProgram::teardown() | 93 const char* GridProgram::fragmentShaderSource() const |
| 156 { | 94 { |
| 157 this->vertexArrayObject.destroy(); | 95 return ::fragmentShaderSource; |
| 158 this->buffer.destroy(); | |
| 159 this->program.reset(); | |
| 160 } | 96 } |
| 161 | 97 |
| 162 void GridProgram::checkForGLErrors() | 98 const void* GridProgram::vertexData() const |
| 163 { | 99 { |
| 164 gl::checkForGLErrors(qobject_cast<QWidget*>(this->parent())); | 100 return ::data; |
| 165 } | 101 } |
| 102 | |
| 103 int GridProgram::vertexSize() const | |
| 104 { | |
| 105 return sizeof data[0]; | |
| 106 } | |
| 107 | |
| 108 int GridProgram::vertexCount() const | |
| 109 { | |
| 110 return countof(data); | |
| 111 } | |
| 112 | |
| 113 void GridProgram::setupVertexArrays() | |
| 114 { | |
| 115 this->program->enableAttributeArray(0); | |
| 116 this->program->setAttributeBuffer(0, GL_FLOAT, 0, 2, 0); | |
| 117 this->program->setUniformVector("gridColor", this->gridColor); | |
| 118 } | |
| 119 | |
| 120 GLenum GridProgram::drawMode() const | |
| 121 { | |
| 122 return GL_QUADS; | |
| 123 } |
