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)
104 DataType type = VOID;
105 unsigned array_size = 0;
106 unsigned data_offset = 0;
107 unsigned data_size = 0;
112 ReflectData::LayoutHash block_hash;
118 std::uint8_t type_flag;
119 std::uint8_t values[16];
122 std::uint8_t type_flag;
123 std::uint8_t *values;
127 SharedBlock(ReflectData::LayoutHash);
129 const std::uint8_t *get_uniform_indices() const;
134 ReflectData::LayoutHash prog_hash;
147 ProgramBlock(ReflectData::LayoutHash);
150 // XXX All these mutables are a bit silly, but I'm out of better ideas
151 const Program *tied_program;
152 std::vector<TaggedUniform> uniforms;
153 std::vector<char> uniform_data;
155 mutable std::vector<SharedBlock> blocks;
156 mutable std::vector<ProgramBlock> programs;
157 mutable UniformBlock *last_buffer_block;
158 mutable Buffer *buffer;
160 std::string debug_name;
163 ProgramData(const Program * = 0);
164 ProgramData(const ProgramData &);
165 ProgramData(const ProgramData &, const Program *);
166 ProgramData &operator=(const ProgramData &);
170 void uniform(Tag, DataType, unsigned, const void *);
171 bool validate_tag(Tag) const;
172 void mark_dirty(Mask);
174 void uniform(Tag, int);
175 void uniform(Tag, float);
176 void uniform(Tag, int, int);
177 void uniform(Tag, float, float);
178 void uniform2(Tag, const int *);
179 void uniform2(Tag, const float *);
180 void uniform(Tag, int, int, int);
181 void uniform(Tag, float, float, float);
182 void uniform3(Tag, const int *);
183 void uniform3(Tag, const float *);
184 void uniform(Tag, int, int, int, int);
185 void uniform(Tag, float, float, float, float);
186 void uniform(Tag, const Color &);
187 void uniform4(Tag, const int *);
188 void uniform4(Tag, const float *);
189 void uniform_matrix2(Tag, const float *);
190 void uniform_matrix3x2(Tag, const float *);
191 void uniform_matrix4x2(Tag, const float *);
192 void uniform_matrix2x3(Tag, const float *);
193 void uniform_matrix3(Tag, const float *);
194 void uniform_matrix4x3(Tag, const float *);
195 void uniform_matrix2x4(Tag, const float *);
196 void uniform_matrix3x4(Tag, const float *);
197 void uniform(Tag, const Matrix &);
198 void uniform_matrix4(Tag, const float *);
199 void uniform_array(Tag, unsigned, const int *);
200 void uniform_array(Tag, unsigned, const float *);
201 void uniform1_array(Tag, unsigned, const int *);
202 void uniform1_array(Tag, unsigned, const float *);
203 void uniform2_array(Tag, unsigned, const int *);
204 void uniform2_array(Tag, unsigned, const float *);
205 void uniform3_array(Tag, unsigned, const int *);
206 void uniform3_array(Tag, unsigned, const float *);
207 void uniform4_array(Tag, unsigned, const int *);
208 void uniform4_array(Tag, unsigned, const float *);
209 void uniform_matrix2_array(Tag, unsigned, const float *);
210 void uniform_matrix3x2_array(Tag, unsigned, const float *);
211 void uniform_matrix4x2_array(Tag, unsigned, const float *);
212 void uniform_matrix2x3_array(Tag, unsigned, const float *);
213 void uniform_matrix3_array(Tag, unsigned, const float *);
214 void uniform_matrix4x3_array(Tag, unsigned, const float *);
215 void uniform_matrix2x4_array(Tag, unsigned, const float *);
216 void uniform_matrix3x4_array(Tag, unsigned, const float *);
217 void uniform_matrix4_array(Tag, unsigned, const float *);
219 template<typename T, unsigned N>
220 void uniform(Tag, const LinAl::Vector<T, N> &);
222 template<typename T, unsigned R, unsigned C>
223 void uniform(Tag, const LinAl::Matrix<T, R, C> &);
225 template<typename T, unsigned N>
226 void uniform_array(Tag, unsigned, const LinAl::Vector<T, N> *);
228 template<typename T, unsigned R, unsigned C>
229 void uniform_array(Tag, unsigned, const LinAl::Matrix<T, R, C> *);
231 void remove_uniform(Tag);
233 unsigned get_generation() const { return generation; }
235 std::vector<Tag> get_uniform_tags() const;
236 void copy_uniform(const ProgramData &, Tag);
239 int find_uniform_index(Tag) const;
240 std::vector<ProgramBlock>::iterator get_program(const Program &) const;
241 void update_block_uniform_indices(SharedBlock &, const ReflectData::UniformBlockInfo &) const;
242 void update_block(SharedBlock &, const ReflectData::UniformBlockInfo &) const;
244 std::vector<ProgramBlock>::const_iterator prepare_program(const Program &) const;
246 void apply(const Program &, PipelineState &) const;
248 void set_debug_name(const std::string &);
251 template<typename T, unsigned N>
252 void ProgramData::uniform(Tag tag, const LinAl::Vector<T, N> &v)
253 { uniform(tag, TypeTraits<LinAl::Vector<T, N>>::type, 1, &v.x); }
255 template<typename T, unsigned R, unsigned C>
256 void ProgramData::uniform(Tag tag, const LinAl::Matrix<T, R, C> &v)
257 { uniform(tag, TypeTraits<LinAl::Matrix<T, R, C>>::type, 1, &v(0, 0)); }
259 template<typename T, unsigned N>
260 void ProgramData::uniform_array(Tag tag, unsigned n, const LinAl::Vector<T, N> *v)
261 { uniform(tag, TypeTraits<LinAl::Vector<T, N>>::type, n, &v[0].x); }
263 template<typename T, unsigned R, unsigned C>
264 void ProgramData::uniform_array(Tag tag, unsigned n, const LinAl::Matrix<T, R, C> *v)
265 { uniform(tag, TypeTraits<LinAl::Matrix<T, R, C>>::type, n, &v[0](0, 0)); }