| // Copyright 2016 The SwiftShader Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef sw_FrameBuffer_hpp |
| #define sw_FrameBuffer_hpp |
| |
| #include "Reactor/Reactor.hpp" |
| #include "Device/Surface.hpp" |
| #include "System/Thread.hpp" |
| |
| namespace sw |
| { |
| using namespace rr; |
| |
| class Surface; |
| |
| struct BlitState |
| { |
| int width; |
| int height; |
| Format destFormat; |
| Format sourceFormat; |
| int destStride; |
| int sourceStride; |
| int cursorWidth; |
| int cursorHeight; |
| }; |
| |
| class FrameBuffer |
| { |
| public: |
| FrameBuffer(int width, int height, bool fullscreen, bool topLeftOrigin); |
| |
| virtual ~FrameBuffer() = 0; |
| |
| virtual void flip(sw::Surface *source) = 0; |
| virtual void blit(sw::Surface *source, const Rect *sourceRect, const Rect *destRect) = 0; |
| |
| virtual void *lock() = 0; |
| virtual void unlock() = 0; |
| |
| static void setCursorImage(sw::Surface *cursor); |
| static void setCursorOrigin(int x0, int y0); |
| static void setCursorPosition(int x, int y); |
| |
| static Routine *copyRoutine(const BlitState &state); |
| |
| protected: |
| void copy(sw::Surface *source); |
| |
| bool windowed; |
| |
| void *framebuffer; // Native window buffer. |
| int width; |
| int height; |
| int stride; |
| Format format; |
| |
| private: |
| void copyLocked(); |
| |
| static void threadFunction(void *parameters); |
| |
| void *renderbuffer; // Render target buffer. |
| |
| struct Cursor |
| { |
| void *image; |
| int x; |
| int y; |
| int width; |
| int height; |
| int hotspotX; |
| int hotspotY; |
| int positionX; |
| int positionY; |
| }; |
| |
| static Cursor cursor; |
| |
| void (*blitFunction)(void *dst, void *src, Cursor *cursor); |
| Routine *blitRoutine; |
| BlitState blitState; // State of the current blitRoutine. |
| BlitState updateState; // State of the routine to be generated. |
| |
| static void blend(const BlitState &state, const Pointer<Byte> &d, const Pointer<Byte> &s, const Pointer<Byte> &c); |
| |
| Thread *blitThread; |
| Event syncEvent; |
| Event blitEvent; |
| volatile bool terminate; |
| |
| static bool topLeftOrigin; |
| }; |
| } |
| |
| #endif // sw_FrameBuffer_hpp |