| // 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_Blitter_hpp |
| #define sw_Blitter_hpp |
| |
| #include "Surface.hpp" |
| #include "RoutineCache.hpp" |
| #include "Reactor/Reactor.hpp" |
| |
| #include <string.h> |
| |
| namespace sw |
| { |
| class Blitter |
| { |
| struct Options |
| { |
| Options() = default; |
| Options(bool filter, bool useStencil, bool convertSRGB) |
| : writeMask(0xF), clearOperation(false), filter(filter), useStencil(useStencil), convertSRGB(convertSRGB), clampToEdge(false) {} |
| Options(unsigned int writeMask) |
| : writeMask(writeMask), clearOperation(true), filter(false), useStencil(false), convertSRGB(true), clampToEdge(false) {} |
| |
| union |
| { |
| struct |
| { |
| bool writeRed : 1; |
| bool writeGreen : 1; |
| bool writeBlue : 1; |
| bool writeAlpha : 1; |
| }; |
| |
| unsigned char writeMask; |
| }; |
| |
| bool clearOperation : 1; |
| bool filter : 1; |
| bool useStencil : 1; |
| bool convertSRGB : 1; |
| bool clampToEdge : 1; |
| }; |
| |
| struct State : Options |
| { |
| State() = default; |
| State(const Options &options) : Options(options) {} |
| |
| bool operator==(const State &state) const |
| { |
| return memcmp(this, &state, sizeof(State)) == 0; |
| } |
| |
| Format sourceFormat; |
| Format destFormat; |
| int destSamples; |
| }; |
| |
| struct BlitData |
| { |
| void *source; |
| void *dest; |
| int sPitchB; |
| int dPitchB; |
| int dSliceB; |
| |
| float x0; |
| float y0; |
| float w; |
| float h; |
| |
| int y0d; |
| int y1d; |
| int x0d; |
| int x1d; |
| |
| int sWidth; |
| int sHeight; |
| }; |
| |
| public: |
| Blitter(); |
| virtual ~Blitter(); |
| |
| void clear(void *pixel, sw::Format format, Surface *dest, const SliceRect &dRect, unsigned int rgbaMask); |
| void blit(Surface *source, const SliceRectF &sRect, Surface *dest, const SliceRect &dRect, const Options &options); |
| void blit3D(Surface *source, Surface *dest); |
| |
| private: |
| bool fastClear(void *pixel, sw::Format format, Surface *dest, const SliceRect &dRect, unsigned int rgbaMask); |
| |
| bool read(Float4 &color, Pointer<Byte> element, const State &state); |
| bool write(Float4 &color, Pointer<Byte> element, const State &state); |
| bool read(Int4 &color, Pointer<Byte> element, const State &state); |
| bool write(Int4 &color, Pointer<Byte> element, const State &state); |
| static bool GetScale(float4& scale, Format format); |
| static bool ApplyScaleAndClamp(Float4 &value, const State &state, bool preScaled = false); |
| static Int ComputeOffset(Int &x, Int &y, Int &pitchB, int bytes, bool quadLayout); |
| static Float4 LinearToSRGB(Float4 &color); |
| static Float4 sRGBtoLinear(Float4 &color); |
| bool blitReactor(Surface *source, const SliceRectF &sRect, Surface *dest, const SliceRect &dRect, const Options &options); |
| Routine *generate(const State &state); |
| |
| RoutineCache<State> *blitCache; |
| MutexLock criticalSection; |
| }; |
| } |
| |
| #endif // sw_Blitter_hpp |