void DrawBuffersIndexedBase::BlendMaskStateMachine::SetDefaults()
{
SetDisable();
SetColorMask(1, 1, 1, 1);
SetBlendEquation(GL_FUNC_ADD);
SetBlendFunc(GL_ONE, GL_ZERO);
}
void Graphics::ClearAllBuffers()
{
SetScissorTest();
SetColorMask(true);
SetDepthMask(true);
SetStencilMask(~GLuint(0));
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
}
void Graphics::ResetCachedState()
{
Program::Clear();
viewport_ = Recti(0);
glGetIntegerv(GL_FRAMEBUFFER_BINDING, &systemFbo_); // On IOS default FBO is not zero
// Set up texture data read/write alignment
glPixelStorei(GL_PACK_ALIGNMENT, 1);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
VertexArrayObj::Clear();
lastMesh_ = nullptr;
lastProgram_ = nullptr;
activeMesh_ = nullptr;
activeWindow_ = nullptr;
CHECK_GL_STATUS();
SetClearColor(Color(0, 0, 0, 1));
SetClearDepth(1);
SetClearStencil(0);
SetFrameBuffer(nullptr);
SetStencilTest(DEFAULT_STENCIL_ENABLE, DEFAULT_STENCIL_WRITEMASK, DEFAULT_STENCIL_SFAIL,
DEFAULT_STENCIL_DPFAIL, DEFAULT_STENCIL_DPPASS, DEFAULT_STENCIL_FUNC, DEFAULT_STENCIL_REF, DEFAULT_STENCIL_COMPAREMASK);
SetScissorTest();
CHECK_GL_STATUS();
SetColorMask(DEFAULT_COLOR_MASK);
SetDepthMask(DEFAULT_DEPTH_MASK);
SetDepthFunc(DepthFunc::LESS);
SetStencilMask(DEFAULT_STENCIL_MASK);
SetBlendModeTest(DEFAULT_BLEND_MODE);
EnableDepthTest(DEFAULT_DEPTH_TEST_ENABLE);
EnableCullFace(DEFAULT_CULL_FACE_ENABLE);
SetCullFace(CullFaceMode::DEFAULT);
SetFrontFace(FrontFaceMode::DEFAULT);
CHECK_GL_STATUS();
UnboundTextures();
SetVertexArrayObj(nullptr);
SetVertexBuffer(nullptr);
SetIndexBuffer(nullptr);
SetProgram(nullptr);
SetSlopeScaledBias(0);
CHECK_GL_STATUS();
}
void Graphics::ClearBuffers(bool color, bool depth, bool stencil)
{
SetScissorTest();
GLbitfield mask(0);
if (color)
{
mask |= GL_COLOR_BUFFER_BIT;
SetColorMask(true);
}
if (depth)
{
mask |= GL_DEPTH_BUFFER_BIT;
SetDepthMask(true);
}
if (stencil)
{
mask |= GL_STENCIL_BUFFER_BIT;
SetStencilMask(~GLuint(0));
}
glClear(mask);
}
