Files
OpenSpace/modules/iswa/rendering/cygnetplane.cpp
2016-04-05 11:44:49 -04:00

117 lines
4.3 KiB
C++

// * Permission is hereby granted, free of charge, to any person obtaining a copy of this *
// * software and associated documentation files (the "Software"), to deal in the Software *
// * without restriction, including without limitation the rights to use, copy, modify, *
// * merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
// * permit persons to whom the Software is furnished to do so, subject to the following *
// * conditions: *
// * *
// * The above copyright notice and this permission notice shall be included in all copies *
// * or substantial portions of the Software. *
// * *
// * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
// * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
// * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
// * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
// * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
// * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
// ****************************************************************************************/
#include <modules/iswa/rendering/cygnetplane.h>
#include <openspace/engine/openspaceengine.h>
#include <openspace/rendering/renderengine.h>
#include <openspace/util/spicemanager.h>
namespace openspace{
// CygnetPlane::CygnetPlane(int cygnetId, std::string path)
// :ISWACygnet(cygnetId, path)
// ,_quad(0)
// ,_vertexPositionBuffer(0)
// ,_planeIsDirty(true)
// {}
CygnetPlane::CygnetPlane(std::shared_ptr<Metadata> data)
:ISWACygnet(data)
,_quad(0)
,_vertexPositionBuffer(0)
,_planeIsDirty(true)
{}
CygnetPlane::~CygnetPlane(){}
bool CygnetPlane::isReady(){
bool ready = true;
if (!_shader)
ready &= false;
if(!_texture)
ready &= false;
return ready;
}
void CygnetPlane::createPlane(){
glGenVertexArrays(1, &_quad); // generate array
glGenBuffers(1, &_vertexPositionBuffer); // generate buffer
// ============================
// GEOMETRY (quad)
// ============================
// GLfloat x, y, w;
// if(!_data){
// x = _modelScale.x/2.0;
// y = _modelScale.z/2.0;
// w = _modelScale.w;
// }else{
const GLfloat x = _data->scale.x/2.0;
const GLfloat y = _data->scale.z/2.0;
const GLfloat w = _data->scale.w;
// }
const GLfloat vertex_data[] = { // square of two triangles (sigh)
// x y z w s t
-x, -y, 0, w, 0, 1,
x, y, 0, w, 1, 0,
-x, y, 0, w, 0, 0,
-x, -y, 0, w, 0, 1,
x, -y, 0, w, 1, 1,
x, y, 0, w, 1, 0,
};
glBindVertexArray(_quad); // bind array
glBindBuffer(GL_ARRAY_BUFFER, _vertexPositionBuffer); // bind buffer
glBufferData(GL_ARRAY_BUFFER, sizeof(vertex_data), vertex_data, GL_STATIC_DRAW);
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, sizeof(GLfloat) * 6, reinterpret_cast<void*>(0));
glEnableVertexAttribArray(1);
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(GLfloat) * 6, reinterpret_cast<void*>(sizeof(GLfloat) * 4));
_planeIsDirty = false;
}
void CygnetPlane::destroyPlane(){
glDeleteVertexArrays(1, &_quad);
_quad = 0;
glDeleteBuffers(1, &_vertexPositionBuffer);
_vertexPositionBuffer = 0;
}
bool CygnetPlane::createShader(){
if (_shader == nullptr) {
// Plane Program
RenderEngine& renderEngine = OsEng.renderEngine();
_shader = renderEngine.buildRenderProgram("PlaneProgram",
"${MODULE_ISWA}/shaders/cygnetplane_vs.glsl",
"${MODULE_ISWA}/shaders/cygnetplane_fs.glsl"
);
if (!_shader)
return false;
}
}
void CygnetPlane::destroyShader(){
RenderEngine& renderEngine = OsEng.renderEngine();
if (_shader) {
renderEngine.removeRenderProgram(_shader);
_shader = nullptr;
}
}
} //namespace openspace