| |
| /* |
| * Copyright 2010 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| |
| |
| #ifndef GrAtlas_DEFINED |
| #define GrAtlas_DEFINED |
| |
| #include "GrPoint.h" |
| #include "GrTexture.h" |
| #include "GrDrawTarget.h" |
| |
| class GrGpu; |
| class GrRectanizer; |
| class GrAtlasMgr; |
| |
| class GrAtlas { |
| public: |
| int getPlotX() const { return fPlot.fX; } |
| int getPlotY() const { return fPlot.fY; } |
| GrMaskFormat getMaskFormat() const { return fMaskFormat; } |
| |
| GrTexture* texture() const { return fTexture; } |
| |
| bool addSubImage(int width, int height, const void*, GrIPoint16*); |
| |
| static void FreeLList(GrAtlas* atlas) { |
| while (NULL != atlas) { |
| GrAtlas* next = atlas->fNext; |
| delete atlas; |
| atlas = next; |
| } |
| } |
| |
| static bool RemoveUnusedAtlases(GrAtlasMgr* atlasMgr, GrAtlas** startAtlas); |
| |
| GrDrawTarget::DrawToken drawToken() const { return fDrawToken; } |
| void setDrawToken(GrDrawTarget::DrawToken draw) { fDrawToken = draw; } |
| |
| private: |
| GrAtlas(GrAtlasMgr*, int plotX, int plotY, GrMaskFormat format); |
| ~GrAtlas(); // does not try to delete the fNext field |
| |
| // for recycling |
| GrDrawTarget::DrawToken fDrawToken; |
| |
| GrAtlas* fNext; |
| |
| GrTexture* fTexture; |
| GrRectanizer* fRects; |
| GrAtlasMgr* fAtlasMgr; |
| GrIPoint16 fPlot; |
| GrMaskFormat fMaskFormat; |
| |
| friend class GrAtlasMgr; |
| }; |
| |
| class GrPlotMgr; |
| |
| class GrAtlasMgr { |
| public: |
| GrAtlasMgr(GrGpu*); |
| ~GrAtlasMgr(); |
| |
| GrAtlas* addToAtlas(GrAtlas**, int width, int height, const void*, |
| GrMaskFormat, GrIPoint16*); |
| void deleteAtlas(GrAtlas* atlas) { delete atlas; } |
| |
| GrTexture* getTexture(GrMaskFormat format) const { |
| GrAssert((unsigned)format < kCount_GrMaskFormats); |
| return fTexture[format]; |
| } |
| |
| // to be called by ~GrAtlas() |
| void freePlot(GrMaskFormat format, int x, int y); |
| |
| private: |
| GrGpu* fGpu; |
| GrTexture* fTexture[kCount_GrMaskFormats]; |
| GrPlotMgr* fPlotMgr; |
| }; |
| |
| #endif |