1 #ifndef MSP_GL_PROGRAMDATA_H_
2 #define MSP_GL_PROGRAMDATA_H_
6 #include <msp/datafile/objectloader.h>
17 class too_many_uniforms: public std::runtime_error
20 too_many_uniforms(const std::string &w): std::runtime_error(w) { }
21 virtual ~too_many_uniforms() throw() { }
25 class BufferBackedUniformBlock;
30 Stores uniform variables for shader programs. The uniforms are stored in a
31 program-independent way, and UniformBlocks are created to match the uniform
32 layouts of different programs. If multiple programs have the same layout, the
33 same block is used for them.
35 The class is optimized for an access pattern where the set of uniforms and
36 programs stays constants, with only the values changing.
41 class Loader: public DataFile::ObjectLoader<ProgramData>
44 Loader(ProgramData &);
46 void uniform1i(const std::string &, int);
47 void uniform1f(const std::string &, float);
48 void uniform2i(const std::string &, int, int);
49 void uniform2f(const std::string &, float, float);
50 void uniform3i(const std::string &, int, int, int);
51 void uniform3f(const std::string &, float, float, float);
52 void uniform4i(const std::string &, int, int, int, int);
53 void uniform4f(const std::string &, float, float, float, float);
54 void uniform_array_(const std::string &, DataType, unsigned);
55 void uniform1i_array(const std::string &);
56 void uniform1f_array(const std::string &);
57 void uniform2i_array(const std::string &);
58 void uniform2f_array(const std::string &);
59 void uniform3i_array(const std::string &);
60 void uniform3f_array(const std::string &);
61 void uniform4i_array(const std::string &);
62 void uniform4f_array(const std::string &);
63 void uniform_array(const std::string &);
67 class ArrayLoader: public DataFile::Loader
71 unsigned element_size;
72 std::vector<char> data;
75 ArrayLoader(DataType, unsigned);
77 DataType get_data_type() const { return type; }
78 unsigned get_element_size() const { return element_size; }
79 const void *get_data() const { return &data[0]; }
80 unsigned get_size() const { return data.size()/(4*element_size); }
83 void uniform(DataType, unsigned, const void *);
85 void uniform1f(float);
86 void uniform2i(int, int);
87 void uniform2f(float, float);
88 void uniform3i(int, int, int);
89 void uniform3f(float, float, float);
90 void uniform4i(int, int, int, int);
91 void uniform4f(float, float, float, float);
94 typedef unsigned Mask;
98 MASK_BITS = sizeof(Mask)*8,
99 ALL_ONES = static_cast<Mask>(-1)
109 void replace_value(Uniform *);
114 Program::LayoutHash block_hash;
129 SharedBlock(Program::LayoutHash);
131 const UInt8 *get_uniform_indices() const;
136 Program::LayoutHash prog_hash;
149 ProgramBlock(Program::LayoutHash);
152 // XXX All these mutables are a bit silly, but I'm out of better ideas
153 const Program *tied_program;
154 std::vector<TaggedUniform> uniforms;
156 mutable std::vector<SharedBlock> blocks;
157 mutable std::vector<ProgramBlock> programs;
158 mutable BufferBackedUniformBlock *last_buffer_block;
159 mutable Buffer *buffer;
163 ProgramData(const Program * = 0);
164 ProgramData(const ProgramData &);
165 ProgramData(const ProgramData &, const Program *);
166 ProgramData &operator=(const ProgramData &);
170 void uniform(Tag, Uniform *);
171 template<typename T, typename V>
172 void uniform(Tag, V);
173 template<typename T, typename V>
174 void uniform_array(Tag, unsigned, V);
175 bool validate_tag(Tag) const;
176 void add_uniform(Tag, Uniform *);
177 void mark_dirty(Mask);
179 void uniform(Tag, const Uniform &);
180 void uniform(Tag, int);
181 void uniform(Tag, float);
182 void uniform(Tag, int, int);
183 void uniform(Tag, float, float);
184 void uniform2(Tag, const int *);
185 void uniform2(Tag, const float *);
186 void uniform(Tag, int, int, int);
187 void uniform(Tag, float, float, float);
188 void uniform3(Tag, const int *);
189 void uniform3(Tag, const float *);
190 void uniform(Tag, int, int, int, int);
191 void uniform(Tag, float, float, float, float);
192 void uniform(Tag, const Color &);
193 void uniform4(Tag, const int *);
194 void uniform4(Tag, const float *);
195 void uniform_matrix2(Tag, const float *);
196 void uniform_matrix3x2(Tag, const float *);
197 void uniform_matrix4x2(Tag, const float *);
198 void uniform_matrix2x3(Tag, const float *);
199 void uniform_matrix3(Tag, const float *);
200 void uniform_matrix4x3(Tag, const float *);
201 void uniform_matrix2x4(Tag, const float *);
202 void uniform_matrix3x4(Tag, const float *);
203 void uniform(Tag, const Matrix &);
204 void uniform_matrix4(Tag, const float *);
205 void uniform_array(Tag, unsigned, const int *);
206 void uniform_array(Tag, unsigned, const float *);
207 void uniform1_array(Tag, unsigned, const int *);
208 void uniform1_array(Tag, unsigned, const float *);
209 void uniform2_array(Tag, unsigned, const int *);
210 void uniform2_array(Tag, unsigned, const float *);
211 void uniform3_array(Tag, unsigned, const int *);
212 void uniform3_array(Tag, unsigned, const float *);
213 void uniform4_array(Tag, unsigned, const int *);
214 void uniform4_array(Tag, unsigned, const float *);
215 void uniform_matrix2_array(Tag, unsigned, const float *);
216 void uniform_matrix3x2_array(Tag, unsigned, const float *);
217 void uniform_matrix4x2_array(Tag, unsigned, const float *);
218 void uniform_matrix2x3_array(Tag, unsigned, const float *);
219 void uniform_matrix3_array(Tag, unsigned, const float *);
220 void uniform_matrix4x3_array(Tag, unsigned, const float *);
221 void uniform_matrix2x4_array(Tag, unsigned, const float *);
222 void uniform_matrix3x4_array(Tag, unsigned, const float *);
223 void uniform_matrix4_array(Tag, unsigned, const float *);
225 template<typename T, unsigned N>
226 void uniform(Tag, const LinAl::Vector<T, N> &);
228 template<typename T, unsigned R, unsigned C>
229 void uniform(Tag, const LinAl::Matrix<T, R, C> &);
231 template<typename T, unsigned N>
232 void uniform_array(Tag, unsigned, const LinAl::Vector<T, N> *);
234 template<typename T, unsigned R, unsigned C>
235 void uniform_array(Tag, unsigned, const LinAl::Matrix<T, R, C> *);
237 void remove_uniform(Tag);
239 unsigned get_generation() const { return generation; }
241 std::vector<Tag> get_uniform_tags() const;
242 const Uniform &get_uniform(Tag) const;
243 const Uniform *find_uniform(Tag) const;
246 int find_uniform_index(Tag) const;
247 std::vector<ProgramBlock>::iterator get_program(const Program &) const;
248 void update_block_uniform_indices(SharedBlock &, const Program::UniformBlockInfo &) const;
249 void update_block(SharedBlock &, const Program::UniformBlockInfo &) const;
252 /** Applies uniform blocks for the currently bound program, creating them
257 template<typename T, unsigned N>
258 void ProgramData::uniform(Tag tag, const LinAl::Vector<T, N> &v)
259 { uniform<UniformVector<T, N> >(tag, &v.x); }
261 template<typename T, unsigned R, unsigned C>
262 void ProgramData::uniform(Tag tag, const LinAl::Matrix<T, R, C> &v)
263 { uniform<UniformMatrix<T, R, C> >(tag, &v(0, 0)); }
265 template<typename T, unsigned N>
266 void ProgramData::uniform_array(Tag tag, unsigned n, const LinAl::Vector<T, N> *v)
267 { uniform_array<UniformVector<T, N> >(tag, n, &v[0].x); }
269 template<typename T, unsigned R, unsigned C>
270 void ProgramData::uniform_array(Tag tag, unsigned n, const LinAl::Matrix<T, R, C> *v)
271 { uniform_array<UniformMatrix<T, R, C> >(tag, n, &v[0](0, 0)); }