void Bitmap::radialBlur(int angle, int divisions)
{
GUARD_DISPOSED;
GUARD_MEGA;
angle = clamp<int>(angle, 0, 359);
divisions = clamp<int>(divisions, 2, 100);
const int _width = width();
const int _height = height();
float angleStep = (float) angle / (divisions-1);
float opacity = 1.0f / divisions;
float baseAngle = -((float) angle / 2);
ColorQuadArray qArray;
qArray.resize(5);
std::vector<Vertex> &vert = qArray.vertices;
int i = 0;
/* Center */
FloatRect texRect(0, 0, _width, _height);
FloatRect posRect(0, 0, _width, _height);
i += Quad::setTexPosRect(&vert[i*4], texRect, posRect);
/* Upper */
posRect = FloatRect(0, 0, _width, -_height);
i += Quad::setTexPosRect(&vert[i*4], texRect, posRect);
/* Lower */
posRect = FloatRect(0, _height*2, _width, -_height);
i += Quad::setTexPosRect(&vert[i*4], texRect, posRect);
/* Left */
posRect = FloatRect(0, 0, -_width, _height);
i += Quad::setTexPosRect(&vert[i*4], texRect, posRect);
/* Right */
posRect = FloatRect(_width*2, 0, -_width, _height);
i += Quad::setTexPosRect(&vert[i*4], texRect, posRect);
for (int i = 0; i < 4*5; ++i)
vert[i].color = Vec4(1, 1, 1, opacity);
qArray.commit();
TEXFBO newTex = shState->texPool().request(_width, _height);
FBO::bind(newTex.fbo, FBO::Draw);
glState.clearColor.pushSet(Vec4());
FBO::clear();
Transform trans;
trans.setOrigin(Vec2(_width / 2.0f, _height / 2.0f));
trans.setPosition(Vec2(_width / 2.0f, _height / 2.0f));
glState.blendMode.pushSet(BlendAddition);
SimpleMatrixShader &shader = shState->shaders().simpleMatrix;
shader.bind();
p->bindTexture(shader);
TEX::setSmooth(true);
p->pushSetViewport(shader);
for (int i = 0; i < divisions; ++i)
{
trans.setRotation(baseAngle + i*angleStep);
shader.setMatrix(trans.getMatrix());
qArray.draw();
}
p->popViewport();
TEX::setSmooth(false);
glState.blendMode.pop();
glState.clearColor.pop();
shState->texPool().release(p->gl);
p->gl = newTex;
modified();
}
void draw()
{
if (base.tex.tex == TEX::ID(0))
return;
bool windowskinValid = !nullOrDisposed(windowskin);
bool contentsValid = !nullOrDisposed(contents);
Vec2i trans = geo.pos() + sceneOffset;
SimpleAlphaShader &shader = shState->shaders().simpleAlpha;
shader.bind();
shader.applyViewportProj();
if (windowskinValid)
{
shader.setTranslation(trans);
shader.setTexSize(Vec2i(base.tex.width, base.tex.height));
TEX::bind(base.tex.tex);
base.quad.draw();
if (openness < 255)
return;
windowskin->bindTex(shader);
TEX::setSmooth(true);
ctrlVert.draw(0, ctrlQuads);
TEX::setSmooth(false);
}
if (openness < 255)
return;
bool drawCursor = cursorVert.count() > 0 && windowskinValid;
if (drawCursor || contentsValid)
{
/* Translate cliprect from local into screen space */
IntRect clip = clipRect;
clip.setPos(clip.pos() + trans);
glState.scissorBox.push();
glState.scissorTest.pushSet(true);
if (rgssVer >= 3)
glState.scissorBox.setIntersect(clip);
else
glState.scissorBox.setIntersect(IntRect(trans, geo.size()));
IntRect pad = padRect;
pad.setPos(pad.pos() + trans);
if (drawCursor)
{
Vec2i contTrans = pad.pos();
contTrans.x += cursorRect->x;
contTrans.y += cursorRect->y;
if (rgssVer >= 3)
contTrans -= contentsOff;
shader.setTranslation(contTrans);
TEX::setSmooth(true);
cursorVert.draw();
TEX::setSmooth(false);
}
if (contentsValid)
{
if (rgssVer <= 2)
glState.scissorBox.setIntersect(clip);
Vec2i contTrans = pad.pos();
contTrans -= contentsOff;
shader.setTranslation(contTrans);
TEX::setSmooth(false); // XXX
contents->bindTex(shader);
contentsQuad.draw();
}
glState.scissorBox.pop();
glState.scissorTest.pop();
}
TEX::setSmooth(false); // XXX FIND out a way to eliminate
}