| 1 | // Copyright (C) 2012-2015 ChaosForge Ltd
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| 2 | // http://chaosforge.org/
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| 3 | //
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| 4 | // This file is part of Nova libraries.
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| 5 | // For conditions of distribution and use, see copying.txt file in root folder.
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| 6 |
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| 7 | #include "nv/gl/gl_window.hh"
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| 8 |
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| 9 | #include "nv/core/logging.hh"
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| 10 | #include "nv/lib/gl.hh"
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| 11 |
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| 12 | using namespace nv;
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| 13 |
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| 14 | void gl_window::swap_buffers()
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| 15 | {
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| 16 | #if NV_PLATFORM == NV_WINDOWS
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| 17 | ::SwapBuffers( reinterpret_cast<HDC>( m_hwnd ) );
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| 18 | #else
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| 19 | NV_ASSERT( false, "Native GL context currently only working on Windows!" );
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| 20 | #endif
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| 21 | }
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| 22 |
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| 23 | gl_window::~gl_window()
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| 24 | {
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| 25 | if ( m_context )
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| 26 | {
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| 27 | #if NV_PLATFORM == NV_WINDOWS
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| 28 | dynwglDeleteContext( reinterpret_cast<HGLRC>( m_context->get_native_handle() ) );
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| 29 | #endif
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| 30 | }
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| 31 | delete m_context;
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| 32 | m_context = nullptr;
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| 33 | delete m_input;
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| 34 | }
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| 35 |
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| 36 | nv::gl_window::gl_window( device* dev, window_manager* wm, input* a_input, void* handle, void* dc )
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| 37 | : m_device( dev ), m_width( 0 ), m_height( 0 ), m_handle( nullptr )
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| 38 | {
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| 39 | #if NV_PLATFORM == NV_WINDOWS
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| 40 | m_input = a_input;
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| 41 |
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| 42 | m_handle = handle;
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| 43 |
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| 44 | // TODO: error checking
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| 45 | HDC hdc = reinterpret_cast<HDC>( dc );
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| 46 |
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| 47 | const int wgl_attrib_list[] =
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| 48 | {
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| 49 | WGL_DRAW_TO_WINDOW_ARB, GL_TRUE,
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| 50 | WGL_SUPPORT_OPENGL_ARB, GL_TRUE,
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| 51 | WGL_ACCELERATION_ARB, WGL_FULL_ACCELERATION_ARB,
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| 52 | WGL_DOUBLE_BUFFER_ARB, GL_TRUE,
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| 53 | WGL_PIXEL_TYPE_ARB, WGL_TYPE_RGBA_ARB,
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| 54 | WGL_COLOR_BITS_ARB, 32,
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| 55 | WGL_DEPTH_BITS_ARB, 24,
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| 56 | WGL_STENCIL_BITS_ARB, 8,
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| 57 | 0, 0 //End
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| 58 | };
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| 59 |
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| 60 | unsigned int num_formats;
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| 61 | int pixel_format;
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| 62 | PIXELFORMATDESCRIPTOR pfd;
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| 63 |
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| 64 | if ( FALSE == wglChoosePixelFormatARB(hdc, wgl_attrib_list, NULL, 1, &pixel_format, &num_formats) )
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| 65 | {
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| 66 | return;
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| 67 | }
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| 68 |
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| 69 | if ( FALSE == SetPixelFormat(hdc, pixel_format, &pfd) )
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| 70 | {
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| 71 | //int err = GetLastError();
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| 72 | return;
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| 73 | }
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| 74 |
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| 75 | int attribs[] =
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| 76 | {
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| 77 | WGL_CONTEXT_MAJOR_VERSION_ARB, 3,
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| 78 | WGL_CONTEXT_MINOR_VERSION_ARB, 1,
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| 79 | WGL_CONTEXT_PROFILE_MASK_ARB, WGL_CONTEXT_CORE_PROFILE_BIT_ARB,
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| 80 | //WGL_CONTEXT_PROFILE_MASK_ARB, WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB,
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| 81 | 0, 0 //End
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| 82 | };
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| 83 |
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| 84 | HGLRC ctx_handle;
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| 85 | if ( 0 == (ctx_handle = wglCreateContextAttribsARB(hdc, 0, attribs) ) )
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| 86 | {
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| 87 | return;
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| 88 | }
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| 89 |
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| 90 | if ( FALSE == dynwglMakeCurrent( hdc, ctx_handle ) )
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| 91 | {
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| 92 | return;
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| 93 | }
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| 94 |
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| 95 | load_gl_library( NV_GL_PATH, true );
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| 96 | load_wgl_library( NV_GL_PATH, true );
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| 97 |
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| 98 | m_context = new gl_context( m_device, ctx_handle );
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| 99 | // Doesn't work :/
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| 100 | // RECT rect;
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| 101 | // GetClientRect( (HWND)handle, &rect );
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| 102 | // m_width = (uint16)rect.right;
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| 103 | // m_height = (uint16)rect.bottom;
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| 104 | m_handle = wm->adopt_window( handle );
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| 105 | m_hwnd = ::GetDC( reinterpret_cast<HWND>( handle ) );
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| 106 | m_context->set_viewport( nv::ivec4( 0, 0, 1, 1 ) );
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| 107 | #else
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| 108 | NV_ASSERT( false, "Native GL context adoption not implemented for this platform!" );
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| 109 | #endif
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| 110 | }
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| 111 |
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