| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/dfb/wrapdfb.cpp |
| 3 | // Purpose: wx wrappers for DirectFB interfaces |
| 4 | // Author: Vaclav Slavik |
| 5 | // Created: 2006-09-04 |
| 6 | // RCS-ID: $Id$ |
| 7 | // Copyright: (c) 2006 REA Elektronik GmbH |
| 8 | // Licence: wxWindows licence |
| 9 | ///////////////////////////////////////////////////////////////////////////// |
| 10 | |
| 11 | // For compilers that support precompilation, includes "wx.h". |
| 12 | #include "wx/wxprec.h" |
| 13 | |
| 14 | #ifdef __BORLANDC__ |
| 15 | #pragma hdrstop |
| 16 | #endif |
| 17 | |
| 18 | #ifndef WX_PRECOMP |
| 19 | #include "wx/intl.h" |
| 20 | #include "wx/log.h" |
| 21 | #endif |
| 22 | |
| 23 | #include "wx/dfb/wrapdfb.h" |
| 24 | |
| 25 | //----------------------------------------------------------------------------- |
| 26 | // wxDfbCheckReturn |
| 27 | //----------------------------------------------------------------------------- |
| 28 | |
| 29 | bool wxDfbCheckReturn(DFBResult code) |
| 30 | { |
| 31 | switch ( code ) |
| 32 | { |
| 33 | case DFB_OK: |
| 34 | return true; |
| 35 | |
| 36 | // these are programming errors, assert: |
| 37 | #define DFB_ASSERT(code) \ |
| 38 | case code: \ |
| 39 | wxFAIL_MSG( "DirectFB error: " wxT(#code) ); \ |
| 40 | return false \ |
| 41 | |
| 42 | DFB_ASSERT(DFB_DEAD); |
| 43 | DFB_ASSERT(DFB_UNSUPPORTED); |
| 44 | DFB_ASSERT(DFB_UNIMPLEMENTED); |
| 45 | DFB_ASSERT(DFB_INVARG); |
| 46 | DFB_ASSERT(DFB_NOIMPL); |
| 47 | DFB_ASSERT(DFB_MISSINGFONT); |
| 48 | DFB_ASSERT(DFB_THIZNULL); |
| 49 | DFB_ASSERT(DFB_INVAREA); |
| 50 | DFB_ASSERT(DFB_DESTROYED); |
| 51 | DFB_ASSERT(DFB_NOSUCHMETHOD); |
| 52 | DFB_ASSERT(DFB_NOSUCHINSTANCE); |
| 53 | DFB_ASSERT(DFB_VERSIONMISMATCH); |
| 54 | |
| 55 | #undef DFB_ASSERT |
| 56 | |
| 57 | // these are not errors, but valid return codes: |
| 58 | case DFB_INTERRUPTED: |
| 59 | case DFB_BUFFEREMPTY: |
| 60 | return true; |
| 61 | |
| 62 | default: |
| 63 | // FIXME: should handle the errors individually |
| 64 | wxLogError(_("DirectFB error %d occured."), (int)code); |
| 65 | return false; |
| 66 | } |
| 67 | } |
| 68 | |
| 69 | //----------------------------------------------------------------------------- |
| 70 | // wxDfbPtrBase |
| 71 | //----------------------------------------------------------------------------- |
| 72 | |
| 73 | /* static */ |
| 74 | void wxDfbPtrBase::DoAddRef(wxDfbWrapperBase *ptr) |
| 75 | { |
| 76 | ptr->AddRef(); |
| 77 | } |
| 78 | |
| 79 | void wxDfbPtrBase::DoRelease(wxDfbWrapperBase *ptr) |
| 80 | { |
| 81 | ptr->Release(); |
| 82 | } |
| 83 | |
| 84 | //----------------------------------------------------------------------------- |
| 85 | // wxIDirectFB |
| 86 | //----------------------------------------------------------------------------- |
| 87 | |
| 88 | wxIDirectFBPtr wxIDirectFB::ms_ptr; |
| 89 | |
| 90 | /* static */ |
| 91 | void wxIDirectFB::CreateDirectFB() |
| 92 | { |
| 93 | IDirectFB *dfb; |
| 94 | if ( wxDfbCheckReturn(DirectFBCreate(&dfb)) ) |
| 95 | ms_ptr = new wxIDirectFB(dfb); |
| 96 | } |
| 97 | |
| 98 | /* static */ |
| 99 | void wxIDirectFB::CleanUp() |
| 100 | { |
| 101 | ms_ptr.Reset(); |
| 102 | } |
| 103 | |
| 104 | wxIDirectFBSurfacePtr wxIDirectFB::GetPrimarySurface() |
| 105 | { |
| 106 | DFBSurfaceDescription desc; |
| 107 | desc.flags = DSDESC_CAPS; |
| 108 | // NB: see dcscreen.cpp for why we request double-buffered surface |
| 109 | // |
| 110 | // This assumes the cooperative level is DFSCL_NORMAL (that's the |
| 111 | // default and wx doesn't modify it anywhere); if we ever support |
| 112 | // other cooperative levels, DSCAPS_DOUBLE should *not* be used with |
| 113 | // them. |
| 114 | desc.caps = DFBSurfaceCapabilities(DSCAPS_PRIMARY | DSCAPS_DOUBLE); |
| 115 | return CreateSurface(&desc); |
| 116 | } |
| 117 | |
| 118 | //----------------------------------------------------------------------------- |
| 119 | // wxIDirectFBSurface |
| 120 | //----------------------------------------------------------------------------- |
| 121 | |
| 122 | DFBSurfacePixelFormat wxIDirectFBSurface::GetPixelFormat() |
| 123 | { |
| 124 | DFBSurfacePixelFormat format = DSPF_UNKNOWN; |
| 125 | GetPixelFormat(&format); |
| 126 | return format; |
| 127 | } |
| 128 | |
| 129 | int wxIDirectFBSurface::GetDepth() |
| 130 | { |
| 131 | DFBSurfacePixelFormat format = DSPF_UNKNOWN; |
| 132 | |
| 133 | if ( !GetPixelFormat(&format) ) |
| 134 | return -1; |
| 135 | |
| 136 | return DFB_BITS_PER_PIXEL(format); |
| 137 | } |
| 138 | |
| 139 | wxIDirectFBSurfacePtr |
| 140 | wxIDirectFBSurface::CreateCompatible(const wxSize& sz, int flags) |
| 141 | { |
| 142 | wxSize size(sz); |
| 143 | if ( size == wxDefaultSize ) |
| 144 | { |
| 145 | if ( !GetSize(&size.x, &size.y) ) |
| 146 | return NULL; |
| 147 | } |
| 148 | |
| 149 | wxCHECK_MSG( size.x > 0 && size.y > 0, NULL, "invalid size" ); |
| 150 | |
| 151 | DFBSurfaceDescription desc; |
| 152 | desc.flags = (DFBSurfaceDescriptionFlags)( |
| 153 | DSDESC_CAPS | DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT); |
| 154 | GetCapabilities(&desc.caps); |
| 155 | GetPixelFormat(&desc.pixelformat); |
| 156 | desc.width = size.x; |
| 157 | desc.height = size.y; |
| 158 | |
| 159 | // filter out caps that don't make sense for a new compatible surface: |
| 160 | int caps = desc.caps; |
| 161 | caps &= ~DSCAPS_PRIMARY; |
| 162 | caps &= ~DSCAPS_SUBSURFACE; |
| 163 | if ( flags & CreateCompatible_NoBackBuffer ) |
| 164 | { |
| 165 | caps &= ~DSCAPS_DOUBLE; |
| 166 | caps &= ~DSCAPS_TRIPLE; |
| 167 | } |
| 168 | desc.caps = (DFBSurfaceCapabilities)caps; |
| 169 | |
| 170 | wxIDirectFBSurfacePtr snew(wxIDirectFB::Get()->CreateSurface(&desc)); |
| 171 | if ( !snew ) |
| 172 | return NULL; |
| 173 | |
| 174 | if ( desc.pixelformat == DSPF_LUT8 ) |
| 175 | { |
| 176 | wxIDirectFBPalettePtr pal(GetPalette()); |
| 177 | if ( pal ) |
| 178 | { |
| 179 | if ( !snew->SetPalette(pal) ) |
| 180 | return NULL; |
| 181 | } |
| 182 | } |
| 183 | |
| 184 | return snew; |
| 185 | } |
| 186 | |
| 187 | wxIDirectFBSurfacePtr wxIDirectFBSurface::Clone() |
| 188 | { |
| 189 | wxIDirectFBSurfacePtr snew(CreateCompatible()); |
| 190 | if ( !snew ) |
| 191 | return NULL; |
| 192 | |
| 193 | if ( !snew->SetBlittingFlags(DSBLIT_NOFX) ) |
| 194 | return NULL; |
| 195 | |
| 196 | if ( !snew->Blit(GetRaw(), NULL, 0, 0) ) |
| 197 | return NULL; |
| 198 | |
| 199 | return snew; |
| 200 | } |
| 201 | |
| 202 | bool wxIDirectFBSurface::Flip(const DFBRegion *region, int flags) |
| 203 | { |
| 204 | return Check(m_ptr->Flip(m_ptr, region, (DFBSurfaceFlipFlags)flags)); |
| 205 | } |
| 206 | |
| 207 | bool wxIDirectFBSurface::FlipToFront(const DFBRegion *region) |
| 208 | { |
| 209 | // Blit to the front buffer instead of exchanging front and back ones. |
| 210 | // Always doing this ensures that back and front buffer have same content |
| 211 | // and so painting to the back buffer will never lose any previous |
| 212 | // drawings: |
| 213 | return Flip(region, DSFLIP_BLIT); |
| 214 | } |
| 215 | |
| 216 | //----------------------------------------------------------------------------- |
| 217 | // wxIDirectFBDisplayLayer |
| 218 | //----------------------------------------------------------------------------- |
| 219 | |
| 220 | wxVideoMode wxIDirectFBDisplayLayer::GetVideoMode() |
| 221 | { |
| 222 | DFBDisplayLayerConfig cfg; |
| 223 | if ( !GetConfiguration(&cfg) ) |
| 224 | return wxVideoMode(); // invalid |
| 225 | |
| 226 | if ( !((cfg.flags & DLCONF_WIDTH) && |
| 227 | (cfg.flags & DLCONF_HEIGHT) && |
| 228 | (cfg.flags & DLCONF_PIXELFORMAT)) ) |
| 229 | return wxVideoMode(); // invalid |
| 230 | |
| 231 | return wxVideoMode |
| 232 | ( |
| 233 | cfg.width, |
| 234 | cfg.height, |
| 235 | DFB_BITS_PER_PIXEL(cfg.pixelformat) |
| 236 | ); |
| 237 | } |