1 // Copyright 2016 The SwiftShader Authors. All Rights Reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef sw_FrameBufferDD_hpp 16 #define sw_FrameBufferDD_hpp 17 18 #include "FrameBufferWin.hpp" 19 20 #include <ddraw.h> 21 22 namespace sw 23 { 24 class FrameBufferDD : public FrameBufferWin 25 { 26 public: 27 FrameBufferDD(HWND windowHandle, int width, int height, bool fullscreen, bool topLeftOrigin); 28 29 ~FrameBufferDD() override; 30 31 void flip(sw::Surface *source) override; 32 void blit(sw::Surface *source, const Rect *sourceRect, const Rect *destRect) override; 33 34 void flip(HWND windowOverride, sw::Surface *source) override; 35 void blit(HWND windowOverride, sw::Surface *source, const Rect *sourceRect, const Rect *destRect) override; 36 37 void *lock() override; 38 void unlock() override; 39 40 void setGammaRamp(GammaRamp *gammaRamp, bool calibrate) override; 41 void getGammaRamp(GammaRamp *gammaRamp) override; 42 43 void screenshot(void *destBuffer) override; 44 bool getScanline(bool &inVerticalBlank, unsigned int &scanline) override; 45 46 void drawText(int x, int y, const char *string, ...); 47 48 private: 49 void initFullscreen(); 50 void initWindowed(); 51 void createSurfaces(); 52 bool readySurfaces(); 53 void updateClipper(HWND windowOverride); 54 void restoreSurfaces(); 55 void releaseAll(); 56 57 HMODULE ddraw; 58 typedef HRESULT (WINAPI *DIRECTDRAWCREATE)( GUID FAR *lpGUID, LPDIRECTDRAW FAR *lplpDD, IUnknown FAR *pUnkOuter ); 59 HRESULT (WINAPI *DirectDrawCreate)( GUID FAR *lpGUID, LPDIRECTDRAW FAR *lplpDD, IUnknown FAR *pUnkOuter ); 60 typedef HRESULT (WINAPI *DIRECTDRAWENUMERATEEXA)( LPDDENUMCALLBACKEXA lpCallback, LPVOID lpContext, DWORD dwFlags); 61 HRESULT (WINAPI *DirectDrawEnumerateExA)( LPDDENUMCALLBACKEXA lpCallback, LPVOID lpContext, DWORD dwFlags); 62 63 IDirectDraw *directDraw; 64 IDirectDrawSurface *frontBuffer; 65 IDirectDrawSurface *backBuffer; 66 }; 67 } 68 69 #endif // sw_FrameBufferDD_hpp 70