GLint
WebGLRenderbuffer::GetRenderbufferParameter(RBTarget target,
RBParam pname) const
{
gl::GLContext* gl = mContext->gl;
switch (pname.get()) {
case LOCAL_GL_RENDERBUFFER_STENCIL_SIZE:
if (!mFormat)
return 0;
if (!mFormat->format->s)
return 0;
return 8;
case LOCAL_GL_RENDERBUFFER_SAMPLES:
case LOCAL_GL_RENDERBUFFER_WIDTH:
case LOCAL_GL_RENDERBUFFER_HEIGHT:
case LOCAL_GL_RENDERBUFFER_RED_SIZE:
case LOCAL_GL_RENDERBUFFER_GREEN_SIZE:
case LOCAL_GL_RENDERBUFFER_BLUE_SIZE:
case LOCAL_GL_RENDERBUFFER_ALPHA_SIZE:
case LOCAL_GL_RENDERBUFFER_DEPTH_SIZE:
{
gl->fBindRenderbuffer(LOCAL_GL_RENDERBUFFER, mPrimaryRB);
GLint i = 0;
gl->fGetRenderbufferParameteriv(target.get(), pname.get(), &i);
return i;
}
case LOCAL_GL_RENDERBUFFER_INTERNAL_FORMAT:
{
GLenum ret = 0;
if (mFormat) {
ret = mFormat->format->sizedFormat;
if (!mContext->IsWebGL2() && ret == LOCAL_GL_DEPTH24_STENCIL8) {
ret = LOCAL_GL_DEPTH_STENCIL;
}
}
return ret;
}
}
MOZ_ASSERT(false, "This function should only be called with valid `pname`.");
return 0;
}
GLint
WebGLRenderbuffer::GetRenderbufferParameter(RBTarget target,
RBParam pname) const
{
gl::GLContext* gl = mContext->gl;
switch (pname.get()) {
case LOCAL_GL_RENDERBUFFER_STENCIL_SIZE:
if (NeedsDepthStencilEmu(mContext->gl, InternalFormatForGL())) {
if (gl->WorkAroundDriverBugs() &&
gl->Renderer() == gl::GLRenderer::Tegra)
{
return 8;
}
gl::ScopedBindRenderbuffer autoRB(gl, mSecondaryRB);
GLint i = 0;
gl->fGetRenderbufferParameteriv(target.get(), pname.get(), &i);
return i;
}
// Fall through otherwise.
case LOCAL_GL_RENDERBUFFER_WIDTH:
case LOCAL_GL_RENDERBUFFER_HEIGHT:
case LOCAL_GL_RENDERBUFFER_RED_SIZE:
case LOCAL_GL_RENDERBUFFER_GREEN_SIZE:
case LOCAL_GL_RENDERBUFFER_BLUE_SIZE:
case LOCAL_GL_RENDERBUFFER_ALPHA_SIZE:
case LOCAL_GL_RENDERBUFFER_DEPTH_SIZE:
{
GLint i = 0;
gl->fGetRenderbufferParameteriv(target.get(), pname.get(), &i);
return i;
}
}
MOZ_ASSERT(false,
"This function should only be called with valid `pname`.");
return 0;
}