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Diffstat (limited to 'gpu/src/GrGpuGL.h')
| -rw-r--r-- | gpu/src/GrGpuGL.h | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/gpu/src/GrGpuGL.h b/gpu/src/GrGpuGL.h deleted file mode 100644 index 696b72f..0000000 --- a/gpu/src/GrGpuGL.h +++ /dev/null @@ -1,202 +0,0 @@ -/* - Copyright 2011 Google Inc. - - 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 GrGpuGL_DEFINED -#define GrGpuGL_DEFINED - -#include "GrGpu.h" -#include "GrGLIRect.h" -#include "GrGLTexture.h" - -#include "GrGLVertexBuffer.h" -#include "GrGLIndexBuffer.h" - -class GrGpuGL : public GrGpu { -public: - virtual ~GrGpuGL(); - -protected: - GrGpuGL(); - - struct { - size_t fVertexOffset; - GrVertexLayout fVertexLayout; - const GrVertexBuffer* fVertexBuffer; - const GrIndexBuffer* fIndexBuffer; - bool fArrayPtrsDirty; - } fHWGeometryState; - - struct AAState { - bool fMSAAEnabled; - bool fSmoothLineEnabled; - } fHWAAState; - - DrState fHWDrawState; - bool fHWStencilClip; - - // As flush of GL state proceeds it updates fHDrawState - // to reflect the new state. Later parts of the state flush - // may perform cascaded changes but cannot refer to fHWDrawState. - // These code paths can refer to the dirty flags. Subclass should - // call resetDirtyFlags after its flush is complete - struct { - bool fRenderTargetChanged : 1; - int fTextureChangedMask; - } fDirtyFlags; - GR_STATIC_ASSERT(8 * sizeof(int) >= kNumStages); - - // clears the dirty flags - void resetDirtyFlags(); - - // last scissor / viewport scissor state seen by the GL. - struct { - bool fScissorEnabled; - GrGLIRect fScissorRect; - GrGLIRect fViewportRect; - } fHWBounds; - - // GrGpu overrides - // overrides from GrGpu - virtual void resetContext(); - - virtual GrTexture* onCreateTexture(const GrTextureDesc& desc, - const void* srcData, - size_t rowBytes); - virtual GrVertexBuffer* onCreateVertexBuffer(uint32_t size, - bool dynamic); - virtual GrIndexBuffer* onCreateIndexBuffer(uint32_t size, - bool dynamic); - virtual GrResource* onCreatePlatformSurface(const GrPlatformSurfaceDesc& desc); - virtual GrRenderTarget* onCreateRenderTargetFrom3DApiState(); - - virtual void onClear(const GrIRect* rect, GrColor color); - - virtual void onForceRenderTargetFlush(); - - virtual bool onReadPixels(GrRenderTarget* target, - int left, int top, int width, int height, - GrPixelConfig, void* buffer); - - virtual void onDrawIndexed(GrPrimitiveType type, - uint32_t startVertex, - uint32_t startIndex, - uint32_t vertexCount, - uint32_t indexCount); - virtual void onDrawNonIndexed(GrPrimitiveType type, - uint32_t vertexCount, - uint32_t numVertices); - virtual void flushScissor(const GrIRect* rect); - void clearStencil(uint32_t value, uint32_t mask); - virtual void clearStencilClip(const GrIRect& rect); - virtual int getMaxEdges() const; - - // binds texture unit in GL - void setTextureUnit(int unitIdx); - - // binds appropriate vertex and index buffers, also returns any extra - // extra verts or indices to offset by. - void setBuffers(bool indexed, - int* extraVertexOffset, - int* extraIndexOffset); - - // flushes state that is common to fixed and programmable GL - // dither - // line smoothing - // texture binding - // sampler state (filtering, tiling) - // FBO binding - // line width - bool flushGLStateCommon(GrPrimitiveType type); - - // subclass should call this to flush the blend state - void flushBlend(GrPrimitiveType type, - GrBlendCoeff srcCoeff, - GrBlendCoeff dstCoeff); - - // adjusts texture matrix to account for orientation, size, and npotness - static void AdjustTextureMatrix(const GrGLTexture* texture, - GrSamplerState::SampleMode mode, - GrMatrix* matrix); - - // subclass may try to take advantage of identity tex matrices. - // This helper determines if matrix will be identity after all - // adjustments are applied. - static bool TextureMatrixIsIdentity(const GrGLTexture* texture, - const GrSamplerState& sampler); - - static bool BlendCoeffReferencesConstant(GrBlendCoeff coeff); - -private: - - // notify callbacks to update state tracking when related - // objects are bound to GL or deleted outside of the class - void notifyVertexBufferBind(const GrGLVertexBuffer* buffer); - void notifyVertexBufferDelete(const GrGLVertexBuffer* buffer); - void notifyIndexBufferBind(const GrGLIndexBuffer* buffer); - void notifyIndexBufferDelete(const GrGLIndexBuffer* buffer); - void notifyTextureDelete(GrGLTexture* texture); - void notifyRenderTargetDelete(GrRenderTarget* renderTarget); - - void setSpareTextureUnit(); - - bool useSmoothLines(); - - // bound is region that may be modified and therefore has to be resolved. - // NULL means whole target. Can be an empty rect. - void flushRenderTarget(const GrIRect* bound); - void flushStencil(); - void flushAAState(GrPrimitiveType type); - - void resolveRenderTarget(GrGLRenderTarget* texture); - - bool canBeTexture(GrPixelConfig config, - GrGLenum* internalFormat, - GrGLenum* format, - GrGLenum* type); - - bool fboInternalFormat(GrPixelConfig config, GrGLenum* format); - - friend class GrGLVertexBuffer; - friend class GrGLIndexBuffer; - friend class GrGLTexture; - friend class GrGLRenderTarget; - - bool fHWBlendDisabled; - - GrGLuint fAASamples[4]; - enum { - kNone_MSFBO = 0, //<! no support for MSAA FBOs - kDesktopARB_MSFBO,//<! GL3.0-style MSAA FBO (GL_ARB_framebuffer_object) - kDesktopEXT_MSFBO,//<! earlier GL_EXT_framebuffer* extensions - kAppleES_MSFBO, //<! GL_APPLE_framebuffer_multisample ES extension - } fMSFBOType; - - // Do we have stencil wrap ops. - bool fHasStencilWrap; - - // The maximum number of fragment uniform vectors (GLES has min. 16). - int fMaxFragmentUniformVectors; - - // ES requires an extension to support RGBA8 in RenderBufferStorage - bool fRGBA8Renderbuffer; - - int fActiveTextureUnitIdx; - - typedef GrGpu INHERITED; -}; - -#endif |