void RenderingEngine::DrawImagesForTexture(simnode<Drawable>* from, simnode<Drawable>* to, int numSquares)
{
if(from == to){
return;
}
GLuint textureID = from->data->Texture()->Name;
if(textureID != _currentTexture->Name){
glBindTexture(GL_TEXTURE_2D, textureID);
glEnableVertexAttribArray(_attributes.Position);
glEnableVertexAttribArray(_attributes.TextureCoord);
glEnableVertexAttribArray(_attributes.Color);
glUniform1i(_uniforms.IsParticle, GL_FALSE);
//glUniform1f(_uniforms.PointSize, 10.0f);
//glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
SetBlendFunc(_defaultSfactor, _defaultDfactor);
//glBlendFunc(GL_SRC_ALPHA, GL_ONE);
_currentTexture = from->data->Texture();
}
int numVertices = 6 * numSquares;
int numVars = numVertices * 2;
PointArrays* imageArrays = GetPointArraysByTextureID(_currentTexture->ID, numVars);
int index = 0;
bool hasColorChange = false;
while (from != to) {
Drawable* d = from->data;
//Image* img = static_cast<Image*>(d);
//cout << img->Name() << "|" << _currentTextureID << endl;
if(!d->isOutOfScreen && d->IsVisible()){
if(d->sfactor == 0 && d->dfactor == 0){
if(_isDefaultChanged){
SetBlendFunc(_defaultSfactor, _defaultDfactor);
_isDefaultChanged = false;
}
}else if(_currentSfactor != d->sfactor || _currentDfactor != d->dfactor){
_isDefaultChanged = true;
SetBlendFunc(d->sfactor, d->dfactor);
}
if(d->IsColorChanged()) hasColorChange = true;
index = d->FillArrays(imageArrays, 0, index);
}
from = from->next;
}
glUniform1i(_uniforms.HasColorChange, hasColorChange ? GL_TRUE : GL_FALSE);
glVertexAttribPointer(_attributes.Position, 2, GL_FLOAT, GL_FALSE, 0, imageArrays->vertices);
glVertexAttribPointer(_attributes.TextureCoord, 2, GL_FLOAT, GL_FALSE, 0, imageArrays->texCoord);
glVertexAttribPointer(_attributes.Color, 4, GL_FLOAT, GL_TRUE, 0, imageArrays->colors);
glDrawArrays(GL_TRIANGLE_STRIP, 0, numVertices);
}
void RenderingEngine::Render()
{
if(_isEnteredBackground) return;
++_frame;
/*if(_isMultisamplingEnabled) glBindFramebuffer(GL_FRAMEBUFFER, _framebuffers.Msaa);
else*/ glBindFramebuffer(GL_FRAMEBUFFER, _framebuffers.Resolve);
//glViewport(0, 0, _screenSize.x, _screenSize.y);
glClearColor(0, 251.0/255.0, 98.0/255.0, 82.0/255.0);
glClear(GL_COLOR_BUFFER_BIT/*| GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT*/);
// erase expired check each 4 frames
if(_factory->forceClearExpired || _frame % 10 == 0){
_factory->forceClearExpired = false;
ClearExpired();
}
// proces non expired
GLuint lastTextureID = 0;
int lastTextureGroup = 0;
int numSquares = 0;
simnode<Drawable>* curr = _drawables->head;
simnode<Drawable>* from = curr;
while (curr != NULL) {
Drawable* d = curr->data;
if(d->isOutOfScreen || !d->IsVisible()){
curr = curr->next;
continue;
}
GLuint texID = d->Texture()->Name;
int texGroup = d->textureGroup;
if(lastTextureID != 0 && (lastTextureID != texID || texGroup != lastTextureGroup)){
DrawImagesForTexture(from, curr, numSquares);
from = curr;
numSquares = 0;
}
numSquares += d->NumberSquares();
lastTextureID = texID;
lastTextureGroup = texGroup;
curr = curr->next;
}
DrawImagesForTexture(from, NULL, numSquares);
if(!_factory->isPaused){
DrawTouchTrail();
DrawMapDots();
}
// if(_isMultisamplingEnabled){
// //glDisable(GL_SCISSOR_TEST);
//
// glBindFramebuffer(GL_DRAW_FRAMEBUFFER_APPLE, _framebuffers.Resolve);
// glBindFramebuffer(GL_READ_FRAMEBUFFER_APPLE, _framebuffers.Msaa);
// glResolveMultisampleFramebufferAPPLE();
// }
const GLenum discards[] = { GL_COLOR_ATTACHMENT0 };
glDiscardFramebufferEXT(GL_READ_FRAMEBUFFER_APPLE, 1, discards);
glBindRenderbuffer(GL_RENDERBUFFER, _renderbuffers.ResolveColor);
}