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Add RenderState to be passed through the scene graph

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This will eventually handle all mutable state during rendering
This commit is contained in:
fgenesis 2022-05-20 01:04:19 +02:00
parent b6c5d90d3a
commit 68b3c61852
57 changed files with 201 additions and 150 deletions
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49
BBGE/RenderObject.cpp
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@ -55,35 +55,6 @@ int RenderObject::getTopLayer() const
return layer;
}
struct BlendParams
{
GLenum src, dst;
};
static const BlendParams s_blendParams[] =
{
{ GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA },
{ GL_SRC_ALPHA, GL_ONE },
{ GL_ZERO, GL_SRC_ALPHA },
{ GL_ZERO, GL_SRC_COLOR },
};
void RenderObject::applyBlendType() const
{
compile_assert(Countof(s_blendParams) == _BLEND_MAXSIZE);
if (_blendType >= BLEND_DEFAULT)
{
glEnable(GL_BLEND);
const BlendParams& bp = s_blendParams[_blendType];
glBlendFunc(bp.src, bp.dst);
}
else
{
glDisable(GL_BLEND);
glDisable(GL_ALPHA_TEST);
}
}
void RenderObject::setColorMult(const Vector &color, const float alpha) const
{
if (colorIsSaved)
@ -502,7 +473,7 @@ bool RenderObject::hasRenderPass(const int pass) const
return false;
}
void RenderObject::render() const
void RenderObject::render(const RenderState& rs) const
{
if (isHidden()) return;
@ -547,17 +518,17 @@ void RenderObject::render() const
position = mb->positions[i].position;
rotation.z = mb->positions[i].rotz;
alpha = (1.0f-(float(i) * m)) * m2;
renderCall();
renderCall(rs);
}
position = oldPos;
alpha.x = oldAlpha;
rotation.z = oldRotZ;
}
renderCall();
renderCall(rs);
}
void RenderObject::renderCall() const
void RenderObject::renderCall(const RenderState& rs) const
{
position += offset;
@ -648,7 +619,7 @@ void RenderObject::renderCall() const
for (Children::const_iterator i = children.begin(); i != children.end(); i++)
{
if (!(*i)->isDead() && (*i)->renderBeforeParent)
(*i)->render();
(*i)->render(rs);
}
@ -680,7 +651,7 @@ void RenderObject::renderCall() const
}
}
applyBlendType();
rs.gpu.setBlend(getBlendType());
bool doRender = true;
@ -698,16 +669,16 @@ void RenderObject::renderCall() const
}
if (renderCollisionShape)
renderCollision();
renderCollision(rs);
if (doRender)
onRender();
onRender(rs);
for (Children::const_iterator i = children.begin(); i != children.end(); i++)
{
if (!(*i)->isDead() && !(*i)->renderBeforeParent)
(*i)->render();
(*i)->render(rs);
}
@ -717,7 +688,7 @@ void RenderObject::renderCall() const
position -= offset;
}
void RenderObject::renderCollision() const
void RenderObject::renderCollision(const RenderState& rs) const
{
}