D3DGraphicContextProvider::D3DGraphicContextProvider(D3DDisplayWindowProvider *window, const DisplayWindowDescription &display_desc)
: window(window),
current_prim_array_provider(0),
current_program_provider(0),
input_layout_set(false)
{
// set_blend_color(Colorf::black);
// set_blend_function(blend_one, blend_zero, blend_one, blend_zero);
// enable_blending(false);
default_depth = display_desc.get_depth_size();
Size viewport_size = get_display_window_size();
for (int i = 0; i < D3D11_SIMULTANEOUS_RENDER_TARGET_COUNT; i++)
{
viewports[i].Width = viewport_size.width;
viewports[i].Height = viewport_size.height;
viewports[i].TopLeftX = 0;
viewports[i].TopLeftY = 0;
viewports[i].MinDepth = 0.0f;
viewports[i].MaxDepth = 1.0f;
}
window->get_device_context()->RSSetViewports(D3D11_SIMULTANEOUS_RENDER_TARGET_COUNT, viewports);
for (int i = 0; i < D3D11_SIMULTANEOUS_RENDER_TARGET_COUNT; i++)
{
scissor_rects[i].left = 0;
scissor_rects[i].top = 0;
scissor_rects[i].right = 0;
scissor_rects[i].bottom = 0;
}
for (int i = 0; i < shadertype_num_types; i++)
shader_bound[i] = false;
set_default_dsv();
SharedGCData::add_provider(this);
}
void OpenGLCreationHelper::set_multisampling_pixel_format(const DisplayWindowDescription &desc)
{
PIXELFORMATDESCRIPTOR pfd;
memset(&pfd, 0, sizeof(PIXELFORMATDESCRIPTOR));
pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR);
pfd.nVersion = 1;
pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL;
pfd.iPixelType = PFD_TYPE_RGBA;
pfd.dwFlags |= PFD_DOUBLEBUFFER;
pfd.cColorBits = 24;
pfd.cRedBits = 4;
pfd.cGreenBits = 4;
pfd.cBlueBits = 4;
pfd.cAlphaBits = 4;
pfd.cDepthBits = desc.get_depth_size();
pfd.cStencilBits = desc.get_stencil_size();
if (desc.is_layered())
{
pfd.cAlphaBits = 8;
pfd.dwFlags |= PFD_DOUBLEBUFFER_DONTCARE; // | PFD_DRAW_TO_BITMAP
}
if (desc.get_multisampling() < 1)
{
int pixelformat = ChoosePixelFormat(hdc, &pfd);
SetPixelFormat(hdc, pixelformat, &pfd);
}
else
{
int pixelformat = ChoosePixelFormat(hdc, &pfd);
set_active();
ptr_wglChoosePixelFormatEXT wglChoosePixelFormatEXT = (ptr_wglChoosePixelFormatEXT)wglGetProcAddress("wglChoosePixelFormatEXT");
if (wglChoosePixelFormatEXT == 0)
wglChoosePixelFormatEXT = (ptr_wglChoosePixelFormatEXT)wglGetProcAddress("wglChoosePixelFormatARB");
reset_active();
if (wglChoosePixelFormatEXT)
{
std::vector<FLOAT> float_attributes;
std::vector<int> int_attributes;
int_attributes.push_back(WGL_DRAW_TO_WINDOW);
int_attributes.push_back(GL_TRUE);
int_attributes.push_back(WGL_ACCELERATION);
int_attributes.push_back(WGL_FULL_ACCELERATION);
int_attributes.push_back(WGL_DOUBLE_BUFFER);
int_attributes.push_back(GL_TRUE);
int_attributes.push_back(WGL_COLOR_BITS);
int_attributes.push_back(4 + 4 + 4);
int_attributes.push_back(WGL_ALPHA_BITS);
int_attributes.push_back(4);
int_attributes.push_back(WGL_DEPTH_BITS);
int_attributes.push_back(desc.get_depth_size());
int_attributes.push_back(WGL_STENCIL_BITS);
int_attributes.push_back(desc.get_stencil_size());
int_attributes.push_back(WGL_SAMPLE_BUFFERS);
int_attributes.push_back(GL_TRUE);
int_attributes.push_back(WGL_SAMPLES);
int_attributes.push_back(desc.get_multisampling());
float_attributes.push_back(0.0f);
float_attributes.push_back(0.0f);
int_attributes.push_back(0);
int_attributes.push_back(0);
int new_pixelformat = pixelformat;
UINT num_formats = 0;
BOOL result = wglChoosePixelFormatEXT(hdc, &int_attributes[0], &float_attributes[0], 1, &new_pixelformat, &num_formats);
if (result == TRUE && num_formats > 0)
pixelformat = new_pixelformat;
}
SetPixelFormat(hdc, pixelformat, &pfd);
}
}