1 #ifndef MSP_GL_PROGRAMDATA_H_
2 #define MSP_GL_PROGRAMDATA_H_
6 #include <msp/datafile/objectloader.h>
9 #include "reflectdata.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() { }
24 class BufferBackedUniformBlock;
31 Stores uniform variables for shader programs. The uniforms are stored in a
32 program-independent way, and UniformBlocks are created to match the uniform
33 layouts of different programs. If multiple programs have the same layout, the
34 same block is used for them.
36 The class is optimized for an access pattern where the set of uniforms and
37 programs stays constants, with only the values changing.
42 class Loader: public DataFile::ObjectLoader<ProgramData>
45 Loader(ProgramData &);
47 void uniform1i(const std::string &, int);
48 void uniform1f(const std::string &, float);
49 void uniform2i(const std::string &, int, int);
50 void uniform2f(const std::string &, float, float);
51 void uniform3i(const std::string &, int, int, int);
52 void uniform3f(const std::string &, float, float, float);
53 void uniform4i(const std::string &, int, int, int, int);
54 void uniform4f(const std::string &, float, float, float, float);
55 void uniform_array_(const std::string &, DataType, unsigned);
56 void uniform1i_array(const std::string &);
57 void uniform1f_array(const std::string &);
58 void uniform2i_array(const std::string &);
59 void uniform2f_array(const std::string &);
60 void uniform3i_array(const std::string &);
61 void uniform3f_array(const std::string &);
62 void uniform4i_array(const std::string &);
63 void uniform4f_array(const std::string &);
64 void uniform_array(const std::string &);
68 class ArrayLoader: public DataFile::Loader
72 unsigned element_size;
73 std::vector<char> data;
76 ArrayLoader(DataType, unsigned);
78 DataType get_data_type() const { return type; }
79 unsigned get_element_size() const { return element_size; }
80 const void *get_data() const { return &data[0]; }
81 unsigned get_size() const { return data.size()/(4*element_size); }
84 void uniform(DataType, unsigned, const void *);
86 void uniform1f(float);
87 void uniform2i(int, int);
88 void uniform2f(float, float);
89 void uniform3i(int, int, int);
90 void uniform3f(float, float, float);
91 void uniform4i(int, int, int, int);
92 void uniform4f(float, float, float, float);
95 typedef unsigned Mask;
99 MASK_BITS = sizeof(Mask)*8,
100 ALL_ONES = static_cast<Mask>(-1)
108 unsigned data_offset;
116 ReflectData::LayoutHash block_hash;
122 std::uint8_t type_flag;
123 std::uint8_t values[16];
126 std::uint8_t type_flag;
127 std::uint8_t *values;
131 SharedBlock(ReflectData::LayoutHash);
133 const std::uint8_t *get_uniform_indices() const;
138 ReflectData::LayoutHash prog_hash;
151 ProgramBlock(ReflectData::LayoutHash);
154 // XXX All these mutables are a bit silly, but I'm out of better ideas
155 const Program *tied_program;
156 std::vector<TaggedUniform> uniforms;
157 std::vector<char> uniform_data;
159 mutable std::vector<SharedBlock> blocks;
160 mutable std::vector<ProgramBlock> programs;
161 mutable UniformBlock *last_buffer_block;
162 mutable Buffer *buffer;
164 std::string debug_name;
167 ProgramData(const Program * = 0);
168 ProgramData(const ProgramData &);
169 ProgramData(const ProgramData &, const Program *);
170 ProgramData &operator=(const ProgramData &);
174 void uniform(Tag, DataType, unsigned, const void *);
175 bool validate_tag(Tag) const;
176 void mark_dirty(Mask);
178 void uniform(Tag, int);
179 void uniform(Tag, float);
180 void uniform(Tag, int, int);
181 void uniform(Tag, float, float);
182 void uniform2(Tag, const int *);
183 void uniform2(Tag, const float *);
184 void uniform(Tag, int, int, int);
185 void uniform(Tag, float, float, float);
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 Color &);
191 void uniform4(Tag, const int *);
192 void uniform4(Tag, const float *);
193 void uniform_matrix2(Tag, const float *);
194 void uniform_matrix3x2(Tag, const float *);
195 void uniform_matrix4x2(Tag, const float *);
196 void uniform_matrix2x3(Tag, const float *);
197 void uniform_matrix3(Tag, const float *);
198 void uniform_matrix4x3(Tag, const float *);
199 void uniform_matrix2x4(Tag, const float *);
200 void uniform_matrix3x4(Tag, const float *);
201 void uniform(Tag, const Matrix &);
202 void uniform_matrix4(Tag, const float *);
203 void uniform_array(Tag, unsigned, const int *);
204 void uniform_array(Tag, unsigned, const float *);
205 void uniform1_array(Tag, unsigned, const int *);
206 void uniform1_array(Tag, unsigned, const float *);
207 void uniform2_array(Tag, unsigned, const int *);
208 void uniform2_array(Tag, unsigned, const float *);
209 void uniform3_array(Tag, unsigned, const int *);
210 void uniform3_array(Tag, unsigned, const float *);
211 void uniform4_array(Tag, unsigned, const int *);
212 void uniform4_array(Tag, unsigned, const float *);
213 void uniform_matrix2_array(Tag, unsigned, const float *);
214 void uniform_matrix3x2_array(Tag, unsigned, const float *);
215 void uniform_matrix4x2_array(Tag, unsigned, const float *);
216 void uniform_matrix2x3_array(Tag, unsigned, const float *);
217 void uniform_matrix3_array(Tag, unsigned, const float *);
218 void uniform_matrix4x3_array(Tag, unsigned, const float *);
219 void uniform_matrix2x4_array(Tag, unsigned, const float *);
220 void uniform_matrix3x4_array(Tag, unsigned, const float *);
221 void uniform_matrix4_array(Tag, unsigned, const float *);
223 template<typename T, unsigned N>
224 void uniform(Tag, const LinAl::Vector<T, N> &);
226 template<typename T, unsigned R, unsigned C>
227 void uniform(Tag, const LinAl::Matrix<T, R, C> &);
229 template<typename T, unsigned N>
230 void uniform_array(Tag, unsigned, const LinAl::Vector<T, N> *);
232 template<typename T, unsigned R, unsigned C>
233 void uniform_array(Tag, unsigned, const LinAl::Matrix<T, R, C> *);
235 void remove_uniform(Tag);
237 unsigned get_generation() const { return generation; }
239 std::vector<Tag> get_uniform_tags() const;
240 void copy_uniform(const ProgramData &, Tag);
243 int find_uniform_index(Tag) const;
244 std::vector<ProgramBlock>::iterator get_program(const Program &) const;
245 void update_block_uniform_indices(SharedBlock &, const ReflectData::UniformBlockInfo &) const;
246 void update_block(SharedBlock &, const ReflectData::UniformBlockInfo &) const;
248 std::vector<ProgramBlock>::const_iterator prepare_program(const Program &) const;
250 void apply(const Program &, PipelineState &) const;
252 void set_debug_name(const std::string &);
255 template<typename T, unsigned N>
256 void ProgramData::uniform(Tag tag, const LinAl::Vector<T, N> &v)
257 { uniform(tag, TypeTraits<LinAl::Vector<T, N>>::type, 1, &v.x); }
259 template<typename T, unsigned R, unsigned C>
260 void ProgramData::uniform(Tag tag, const LinAl::Matrix<T, R, C> &v)
261 { uniform(tag, TypeTraits<LinAl::Matrix<T, R, C>>::type, 1, &v(0, 0)); }
263 template<typename T, unsigned N>
264 void ProgramData::uniform_array(Tag tag, unsigned n, const LinAl::Vector<T, N> *v)
265 { uniform(tag, TypeTraits<LinAl::Vector<T, N>>::type, n, &v[0].x); }
267 template<typename T, unsigned R, unsigned C>
268 void ProgramData::uniform_array(Tag tag, unsigned n, const LinAl::Matrix<T, R, C> *v)
269 { uniform(tag, TypeTraits<LinAl::Matrix<T, R, C>>::type, n, &v[0](0, 0)); }