Line data    Source code

       1             : /*
       2             :  * Copyright 2015 Google Inc.
       3             :  *
       4             :  * Use of this source code is governed by a BSD-style license that can be
       5             :  * found in the LICENSE file.
       6             :  */
       7             : 
       8             : #ifndef GrGLSLProgramDataManager_DEFINED
       9             : #define GrGLSLProgramDataManager_DEFINED
      10             : 
      11             : #include "GrResourceHandle.h"
      12             : #include "SkTypes.h"
      13             : 
      14             : class SkMatrix;
      15             : class SkMatrix44;
      16             : 
      17             : /** Manages the resources used by a shader program.
      18             :  * The resources are objects the program uses to communicate with the
      19             :  * application code.
      20             :  */
      21             : class GrGLSLProgramDataManager : SkNoncopyable {
      22             : public:
      23             :     GR_DEFINE_RESOURCE_HANDLE_CLASS(UniformHandle);
      24             : 
      25           0 :     virtual ~GrGLSLProgramDataManager() {}
      26             : 
      27             :     /** Functions for uploading uniform values. The varities ending in v can be used to upload to an
      28             :      *  array of uniforms. arrayCount must be <= the array count of the uniform.
      29             :      */
      30             :     virtual void set1i(UniformHandle, int32_t) const = 0;
      31             :     virtual void set1iv(UniformHandle, int arrayCount, const int v[]) const = 0;
      32             :     virtual void set1f(UniformHandle, float v0) const = 0;
      33             :     virtual void set1fv(UniformHandle, int arrayCount, const float v[]) const = 0;
      34             :     virtual void set2f(UniformHandle, float, float) const = 0;
      35             :     virtual void set2fv(UniformHandle, int arrayCount, const float v[]) const = 0;
      36             :     virtual void set3f(UniformHandle, float, float, float) const = 0;
      37             :     virtual void set3fv(UniformHandle, int arrayCount, const float v[]) const = 0;
      38             :     virtual void set4f(UniformHandle, float, float, float, float) const = 0;
      39             :     virtual void set4fv(UniformHandle, int arrayCount, const float v[]) const = 0;
      40             :     // matrices are column-major, the first three upload a single matrix, the latter three upload
      41             :     // arrayCount matrices into a uniform array.
      42             :     virtual void setMatrix2f(UniformHandle, const float matrix[]) const = 0;
      43             :     virtual void setMatrix3f(UniformHandle, const float matrix[]) const = 0;
      44             :     virtual void setMatrix4f(UniformHandle, const float matrix[]) const = 0;
      45             :     virtual void setMatrix2fv(UniformHandle, int arrayCount, const float matrices[]) const = 0;
      46             :     virtual void setMatrix3fv(UniformHandle, int arrayCount, const float matrices[]) const = 0;
      47             :     virtual void setMatrix4fv(UniformHandle, int arrayCount, const float matrices[]) const = 0;
      48             : 
      49             :     // convenience method for uploading a SkMatrix to a 3x3 matrix uniform
      50             :     void setSkMatrix(UniformHandle, const SkMatrix&) const;
      51             : 
      52             :     // convenience method for uploading a SkMatrix44 to a 4x4 matrix uniform
      53             :     void setSkMatrix44(UniformHandle, const SkMatrix44&) const;
      54             : 
      55             :     // for nvpr only
      56             :     GR_DEFINE_RESOURCE_HANDLE_CLASS(VaryingHandle);
      57             :     virtual void setPathFragmentInputTransform(VaryingHandle u, int components,
      58             :                                                const SkMatrix& matrix) const = 0;
      59             : 
      60             : protected:
      61           0 :     GrGLSLProgramDataManager() {}
      62             : 
      63             : private:
      64             :     typedef SkNoncopyable INHERITED;
      65             : };
      66             : 
      67             : #endif