0.7.0
texture.hpp
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1 
29 #pragma once
30 
31 #include "image.hpp"
32 #include "target.hpp"
33 
34 namespace gli
35 {
37  class texture
38  {
39  public:
40  typedef size_t size_type;
41  typedef gli::format format_type;
42  typedef gli::target target_type;
43  typedef storage::dim_type dim_type;
44  typedef storage::data_type data_type;
45 
47  texture();
48 
50  texture(
51  target_type Target,
52  format_type Format,
53  dim_type const & Dimensions,
54  size_type Layers,
55  size_type Faces,
56  size_type Levels);
57 
63  texture(
64  texture const & Texture,
65  target_type Target,
66  format_type Format,
67  size_type BaseLayer, size_type MaxLayer,
68  size_type BaseFace, size_type MaxFace,
69  size_type BaseLevel, size_type MaxLevel);
70 
74  texture(
75  texture const & Texture,
76  target_type Target,
77  format_type Format);
78 
79  virtual ~texture(){}
80 
82  bool empty() const;
83 
85  target_type target() const{return this->Target;}
86 
88  format_type format() const;
89 
91  size_type base_layer() const;
92 
94  size_type max_layer() const;
95 
97  size_type layers() const;
98 
100  size_type base_face() const;
101 
103  size_type max_face() const;
104 
106  size_type faces() const;
107 
109  size_type base_level() const;
110 
112  size_type max_level() const;
113 
115  size_type levels() const;
116 
118  dim_type dimensions(size_type Level = 0) const;
119 
121  size_type size() const;
122 
125  template <typename genType>
126  size_type size() const;
127 
129  size_type size(size_type Level) const;
130 
133  template <typename genType>
134  size_type size(size_type Level) const;
135 
137  void * data();
138 
140  template <typename genType>
141  genType * data();
142 
144  void const * data() const;
145 
147  template <typename genType>
148  genType const * data() const;
149 
151  void * data(size_type Layer, size_type Face, size_type Level);
152 
154  void const * data(size_type Layer, size_type Face, size_type Level) const;
155 
157  template <typename genType>
158  genType * data(size_type Layer, size_type Face, size_type Level);
159 
161  template <typename genType>
162  genType const * data(size_type Layer, size_type Face, size_type Level) const;
163 
165  void clear();
166 
169  template <typename genType>
170  void clear(genType const & Texel);
171 
172  protected:
174  size_type offset(size_type Layer, size_type Face, size_type Level) const;
175 
176  struct cache
177  {
178  data_type * Data;
179  size_type Size;
180  };
181 
182  std::shared_ptr<storage> Storage;
183  target_type const Target;
184  format_type const Format;
185  size_type const BaseLayer;
186  size_type const MaxLayer;
187  size_type const BaseFace;
188  size_type const MaxFace;
189  size_type const BaseLevel;
190  size_type const MaxLevel;
191  cache Cache;
192 
193  private:
194  void build_cache();
195  };
196 
197 }//namespace gli
198 
199 #include "./core/texture.inl"
200 
gli::texture::max_face
size_type max_face() const
Return the max face of the texture instance, effectively a memory offset to the beginning of the last...
gli::texture::texture
texture()
Create an empty texture instance.
target.hpp
OpenGL Image (gli.g-truc.net)
gli::texture::data
void * data()
Return a pointer to the beginning of the texture instance data.
gli::texture::levels
size_type levels() const
Return max_level() - base_level() + 1.
gli::texture::size
size_type size() const
Return the memory size of a texture instance storage in bytes.
gli::texture::base_layer
size_type base_layer() const
Return the base layer of the texture instance, effectively a memory offset in the actual texture stor...
gli::texture::faces
size_type faces() const
Return max_face() - base_face() + 1.
gli::texture::clear
void clear()
Clear the entire texture storage with zeros.
gli::texture::dimensions
dim_type dimensions(size_type Level=0) const
Return the dimensions of a texture instance: width, height and depth.
gli::texture::offset
size_type offset(size_type Layer, size_type Face, size_type Level) const
Compute the relative memory offset to access the data for a specific layer, face and level...
gli::texture::base_face
size_type base_face() const
Return the base face of the texture instance, effectively a memory offset in the actual texture stora...
gli::texture::base_level
size_type base_level() const
Return the base level of the texture instance, effectively a memory offset in the actual texture stor...
gli::texture::format
format_type format() const
Return the texture instance format.
gli::texture::target
target_type target() const
Return the target of a texture instance.
Definition: texture.hpp:85
gli::texture::max_level
size_type max_level() const
Return the max level of the texture instance, effectively a memory offset to the beginning of the las...
gli::texture::empty
bool empty() const
Return whether the texture instance is empty, no storage or description have been assigned to the ins...
gli::texture
Genetic texture class. It can support any target.
Definition: texture.hpp:37
gli::texture::layers
size_type layers() const
Return max_layer() - base_layer() + 1.
image.hpp
OpenGL Image (gli.g-truc.net)
gli::texture::max_layer
size_type max_layer() const
Return the max layer of the texture instance, effectively a memory offset to the beginning of the las...
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