1 #ifndef MSP_GL_PROGRAMDATA_H_
2 #define MSP_GL_PROGRAMDATA_H_
5 #include <msp/datafile/objectloader.h>
8 #include "reflectdata.h"
15 class too_many_uniforms: public std::runtime_error
18 too_many_uniforms(const std::string &w): std::runtime_error(w) { }
19 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)
106 unsigned data_offset;
114 ReflectData::LayoutHash block_hash;
120 std::uint8_t type_flag;
121 std::uint8_t values[16];
124 std::uint8_t type_flag;
125 std::uint8_t *values;
129 SharedBlock(ReflectData::LayoutHash);
131 const std::uint8_t *get_uniform_indices() const;
136 ReflectData::LayoutHash prog_hash;
149 ProgramBlock(ReflectData::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;
155 std::vector<char> uniform_data;
157 mutable std::vector<SharedBlock> blocks;
158 mutable std::vector<ProgramBlock> programs;
159 mutable UniformBlock *last_buffer_block;
160 mutable Buffer *buffer;
162 std::string debug_name;
165 ProgramData(const Program * = 0);
166 ProgramData(const ProgramData &);
167 ProgramData(const ProgramData &, const Program *);
168 ProgramData &operator=(const ProgramData &);
172 void uniform(Tag, DataType, unsigned, const void *);
173 bool validate_tag(Tag) const;
174 void mark_dirty(Mask);
176 void uniform(Tag, int);
177 void uniform(Tag, float);
178 void uniform(Tag, int, int);
179 void uniform(Tag, float, float);
180 void uniform2(Tag, const int *);
181 void uniform2(Tag, const float *);
182 void uniform(Tag, int, int, int);
183 void uniform(Tag, float, float, float);
184 void uniform3(Tag, const int *);
185 void uniform3(Tag, const float *);
186 void uniform(Tag, int, int, int, int);
187 void uniform(Tag, float, float, float, float);
188 void uniform(Tag, const Color &);
189 void uniform4(Tag, const int *);
190 void uniform4(Tag, const float *);
191 void uniform_matrix2(Tag, const float *);
192 void uniform_matrix3x2(Tag, const float *);
193 void uniform_matrix4x2(Tag, const float *);
194 void uniform_matrix2x3(Tag, const float *);
195 void uniform_matrix3(Tag, const float *);
196 void uniform_matrix4x3(Tag, const float *);
197 void uniform_matrix2x4(Tag, const float *);
198 void uniform_matrix3x4(Tag, const float *);
199 void uniform(Tag, const Matrix &);
200 void uniform_matrix4(Tag, const float *);
201 void uniform_array(Tag, unsigned, const int *);
202 void uniform_array(Tag, unsigned, const float *);
203 void uniform1_array(Tag, unsigned, const int *);
204 void uniform1_array(Tag, unsigned, const float *);
205 void uniform2_array(Tag, unsigned, const int *);
206 void uniform2_array(Tag, unsigned, const float *);
207 void uniform3_array(Tag, unsigned, const int *);
208 void uniform3_array(Tag, unsigned, const float *);
209 void uniform4_array(Tag, unsigned, const int *);
210 void uniform4_array(Tag, unsigned, const float *);
211 void uniform_matrix2_array(Tag, unsigned, const float *);
212 void uniform_matrix3x2_array(Tag, unsigned, const float *);
213 void uniform_matrix4x2_array(Tag, unsigned, const float *);
214 void uniform_matrix2x3_array(Tag, unsigned, const float *);
215 void uniform_matrix3_array(Tag, unsigned, const float *);
216 void uniform_matrix4x3_array(Tag, unsigned, const float *);
217 void uniform_matrix2x4_array(Tag, unsigned, const float *);
218 void uniform_matrix3x4_array(Tag, unsigned, const float *);
219 void uniform_matrix4_array(Tag, unsigned, const float *);
221 template<typename T, unsigned N>
222 void uniform(Tag, const LinAl::Vector<T, N> &);
224 template<typename T, unsigned R, unsigned C>
225 void uniform(Tag, const LinAl::Matrix<T, R, C> &);
227 template<typename T, unsigned N>
228 void uniform_array(Tag, unsigned, const LinAl::Vector<T, N> *);
230 template<typename T, unsigned R, unsigned C>
231 void uniform_array(Tag, unsigned, const LinAl::Matrix<T, R, C> *);
233 void remove_uniform(Tag);
235 unsigned get_generation() const { return generation; }
237 std::vector<Tag> get_uniform_tags() const;
238 void copy_uniform(const ProgramData &, Tag);
241 int find_uniform_index(Tag) const;
242 std::vector<ProgramBlock>::iterator get_program(const Program &) const;
243 void update_block_uniform_indices(SharedBlock &, const ReflectData::UniformBlockInfo &) const;
244 void update_block(SharedBlock &, const ReflectData::UniformBlockInfo &) const;
246 std::vector<ProgramBlock>::const_iterator prepare_program(const Program &) const;
248 void apply(const Program &, PipelineState &) const;
250 void set_debug_name(const std::string &);
253 template<typename T, unsigned N>
254 void ProgramData::uniform(Tag tag, const LinAl::Vector<T, N> &v)
255 { uniform(tag, TypeTraits<LinAl::Vector<T, N>>::type, 1, &v.x); }
257 template<typename T, unsigned R, unsigned C>
258 void ProgramData::uniform(Tag tag, const LinAl::Matrix<T, R, C> &v)
259 { uniform(tag, TypeTraits<LinAl::Matrix<T, R, C>>::type, 1, &v(0, 0)); }
261 template<typename T, unsigned N>
262 void ProgramData::uniform_array(Tag tag, unsigned n, const LinAl::Vector<T, N> *v)
263 { uniform(tag, TypeTraits<LinAl::Vector<T, N>>::type, n, &v[0].x); }
265 template<typename T, unsigned R, unsigned C>
266 void ProgramData::uniform_array(Tag tag, unsigned n, const LinAl::Matrix<T, R, C> *v)
267 { uniform(tag, TypeTraits<LinAl::Matrix<T, R, C>>::type, n, &v[0](0, 0)); }