1 #ifndef MSP_GL_PROGRAMDATA_H_
2 #define MSP_GL_PROGRAMDATA_H_
6 #include <msp/datafile/objectloader.h>
16 class too_many_uniforms: public std::runtime_error
19 too_many_uniforms(const std::string &w): std::runtime_error(w) { }
20 virtual ~too_many_uniforms() throw() { }
29 Stores uniform variables for shader programs. The uniforms are stored in a
30 program-independent way, and UniformBlocks are created to match the uniform
31 layouts of different programs. If multiple programs have the same layout, the
32 same block is used for them.
34 The class is optimized for an access pattern where the set of uniforms and
35 programs stays constants, with only the values changing.
40 class Loader: public DataFile::ObjectLoader<ProgramData>
43 Loader(ProgramData &);
45 void uniform1i(const std::string &, int);
46 void uniform1f(const std::string &, float);
47 void uniform2i(const std::string &, int, int);
48 void uniform2f(const std::string &, float, float);
49 void uniform3i(const std::string &, int, int, int);
50 void uniform3f(const std::string &, float, float, float);
51 void uniform4i(const std::string &, int, int, int, int);
52 void uniform4f(const std::string &, float, float, float, float);
53 void uniform_array_(const std::string &, DataType, unsigned);
54 void uniform1i_array(const std::string &);
55 void uniform1f_array(const std::string &);
56 void uniform2i_array(const std::string &);
57 void uniform2f_array(const std::string &);
58 void uniform3i_array(const std::string &);
59 void uniform3f_array(const std::string &);
60 void uniform4i_array(const std::string &);
61 void uniform4f_array(const std::string &);
62 void uniform_array(const std::string &);
66 class ArrayLoader: public DataFile::Loader
70 unsigned element_size;
71 std::vector<char> data;
74 ArrayLoader(DataType, unsigned);
76 DataType get_data_type() const { return type; }
77 unsigned get_element_size() const { return element_size; }
78 const void *get_data() const { return &data[0]; }
79 unsigned get_size() const { return data.size()/(4*element_size); }
82 void uniform(DataType, unsigned, const void *);
84 void uniform1f(float);
85 void uniform2i(int, int);
86 void uniform2f(float, float);
87 void uniform3i(int, int, int);
88 void uniform3f(float, float, float);
89 void uniform4i(int, int, int, int);
90 void uniform4f(float, float, float, float);
93 typedef unsigned Mask;
97 MASK_BITS = sizeof(Mask)*8,
98 ALL_ONES = static_cast<Mask>(-1)
108 void replace_value(Uniform *);
113 Program::LayoutHash block_hash;
128 SharedBlock(Program::LayoutHash);
130 const UInt8 *get_uniform_indices() const;
135 Program::LayoutHash prog_hash;
148 ProgramBlock(Program::LayoutHash);
151 // XXX All these mutables are a bit silly, but I'm out of better ideas
152 const Program *tied_program;
153 std::vector<TaggedUniform> uniforms;
154 mutable std::vector<SharedBlock> blocks;
155 mutable std::vector<ProgramBlock> programs;
156 mutable UniformBlock *last_block;
157 mutable Buffer *buffer;
161 ProgramData(const Program * = 0);
162 ProgramData(const ProgramData &);
163 ProgramData(const ProgramData &, const Program *);
164 ProgramData &operator=(const ProgramData &);
168 void uniform(Tag, Uniform *);
169 template<typename T, typename V>
170 void uniform(Tag, V);
171 template<typename T, typename V>
172 void uniform_array(Tag, unsigned, V);
173 bool validate_tag(Tag) const;
174 void add_uniform(Tag, Uniform *);
176 void uniform(Tag, const Uniform &);
177 void uniform(Tag, int);
178 void uniform(Tag, float);
179 void uniform(Tag, int, int);
180 void uniform(Tag, float, float);
181 void uniform2(Tag, const int *);
182 void uniform2(Tag, const float *);
183 void uniform(Tag, int, int, int);
184 void uniform(Tag, float, float, float);
185 void uniform(Tag, const Vector3 &);
186 void uniform3(Tag, const int *);
187 void uniform3(Tag, const float *);
188 void uniform(Tag, int, int, int, int);
189 void uniform(Tag, float, float, float, float);
190 void uniform(Tag, const Vector4 &);
191 void uniform(Tag, const Color &);
192 void uniform4(Tag, const int *);
193 void uniform4(Tag, const float *);
194 void uniform(Tag, const LinAl::Matrix<float, 2, 2> &);
195 void uniform_matrix2(Tag, const float *);
196 void uniform(Tag, const LinAl::Matrix<float, 2, 3> &);
197 void uniform_matrix3x2(Tag, const float *);
198 void uniform(Tag, const LinAl::Matrix<float, 2, 4> &);
199 void uniform_matrix4x2(Tag, const float *);
200 void uniform(Tag, const LinAl::Matrix<float, 3, 2> &);
201 void uniform_matrix2x3(Tag, const float *);
202 void uniform(Tag, const LinAl::Matrix<float, 3, 3> &);
203 void uniform_matrix3(Tag, const float *);
204 void uniform(Tag, const LinAl::Matrix<float, 3, 4> &);
205 void uniform_matrix4x3(Tag, const float *);
206 void uniform(Tag, const LinAl::Matrix<float, 4, 2> &);
207 void uniform_matrix2x4(Tag, const float *);
208 void uniform(Tag, const LinAl::Matrix<float, 4, 3> &);
209 void uniform_matrix3x4(Tag, const float *);
210 void uniform(Tag, const Matrix &);
211 void uniform_matrix4(Tag, const float *);
212 void uniform1_array(Tag, unsigned, const int *);
213 void uniform1_array(Tag, unsigned, const float *);
214 void uniform2_array(Tag, unsigned, const int *);
215 void uniform2_array(Tag, unsigned, const float *);
216 void uniform3_array(Tag, unsigned, const int *);
217 void uniform3_array(Tag, unsigned, const float *);
218 void uniform4_array(Tag, unsigned, const int *);
219 void uniform4_array(Tag, unsigned, const float *);
220 void uniform_matrix2_array(Tag, unsigned, const float *);
221 void uniform_matrix3x2_array(Tag, unsigned, const float *);
222 void uniform_matrix4x2_array(Tag, unsigned, const float *);
223 void uniform_matrix2x3_array(Tag, unsigned, const float *);
224 void uniform_matrix3_array(Tag, unsigned, const float *);
225 void uniform_matrix4x3_array(Tag, unsigned, const float *);
226 void uniform_matrix2x4_array(Tag, unsigned, const float *);
227 void uniform_matrix3x4_array(Tag, unsigned, const float *);
228 void uniform_matrix4_array(Tag, unsigned, const float *);
229 void remove_uniform(Tag);
231 std::vector<Tag> get_uniform_tags() const;
232 const Uniform &get_uniform(Tag) const;
233 const Uniform *find_uniform(Tag) const;
236 int find_uniform_index(Tag) const;
237 std::vector<ProgramBlock>::iterator get_program(const Program &) const;
238 void update_block_uniform_indices(SharedBlock &, const Program::UniformBlockInfo &) const;
239 void update_block(SharedBlock &, const Program::UniformBlockInfo &) const;
242 /** Applies uniform blocks for the currently bound program, creating them