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Diffstat (limited to 'src/compiler/glsl/linker.h')
| -rw-r--r-- | src/compiler/glsl/linker.h | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/src/compiler/glsl/linker.h b/src/compiler/glsl/linker.h new file mode 100644 index 0000000000..c80be1c7e2 --- /dev/null +++ b/src/compiler/glsl/linker.h @@ -0,0 +1,205 @@ +/* -*- c++ -*- */ +/* + * Copyright © 2010 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#pragma once +#ifndef GLSL_LINKER_H +#define GLSL_LINKER_H + +extern bool +link_function_calls(gl_shader_program *prog, gl_shader *main, + gl_shader **shader_list, unsigned num_shaders); + +extern void +link_invalidate_variable_locations(exec_list *ir); + +extern void +link_assign_uniform_locations(struct gl_shader_program *prog, + unsigned int boolean_true); + +extern void +link_set_uniform_initializers(struct gl_shader_program *prog, + unsigned int boolean_true); + +extern int +link_cross_validate_uniform_block(void *mem_ctx, + struct gl_uniform_block **linked_blocks, + unsigned int *num_linked_blocks, + struct gl_uniform_block *new_block); + +extern bool +link_uniform_blocks_are_compatible(const gl_uniform_block *a, + const gl_uniform_block *b); + +extern unsigned +link_uniform_blocks(void *mem_ctx, + struct gl_context *ctx, + struct gl_shader_program *prog, + struct gl_shader **shader_list, + unsigned num_shaders, + struct gl_uniform_block **blocks_ret); + +bool +validate_intrastage_arrays(struct gl_shader_program *prog, + ir_variable *const var, + ir_variable *const existing); + +void +validate_intrastage_interface_blocks(struct gl_shader_program *prog, + const gl_shader **shader_list, + unsigned num_shaders); + +void +validate_interstage_inout_blocks(struct gl_shader_program *prog, + const gl_shader *producer, + const gl_shader *consumer); + +void +validate_interstage_uniform_blocks(struct gl_shader_program *prog, + gl_shader **stages, int num_stages); + +extern void +link_assign_atomic_counter_resources(struct gl_context *ctx, + struct gl_shader_program *prog); + +extern void +link_check_atomic_counter_resources(struct gl_context *ctx, + struct gl_shader_program *prog); + +/** + * Class for processing all of the leaf fields of a variable that corresponds + * to a program resource. + * + * The leaf fields are all the parts of the variable that the application + * could query using \c glGetProgramResourceIndex (or that could be returned + * by \c glGetProgramResourceName). + * + * Classes my derive from this class to implement specific functionality. + * This class only provides the mechanism to iterate over the leaves. Derived + * classes must implement \c ::visit_field and may override \c ::process. + */ +class program_resource_visitor { +public: + /** + * Begin processing a variable + * + * Classes that overload this function should call \c ::process from the + * base class to start the recursive processing of the variable. + * + * \param var The variable that is to be processed + * + * Calls \c ::visit_field for each leaf of the variable. + * + * \warning + * When processing a uniform block, this entry should only be used in cases + * where the row / column ordering of matrices in the block does not + * matter. For example, enumerating the names of members of the block, but + * not for determining the offsets of members. + */ + void process(ir_variable *var); + + /** + * Begin processing a variable of a structured type. + * + * This flavor of \c process should be used to handle structured types + * (i.e., structures, interfaces, or arrays there of) that need special + * name handling. A common usage is to handle cases where the block name + * (instead of the instance name) is used for an interface block. + * + * \param type Type that is to be processed, associated with \c name + * \param name Base name of the structured variable being processed + * + * \note + * \c type must be \c GLSL_TYPE_RECORD, \c GLSL_TYPE_INTERFACE, or an array + * there of. + */ + void process(const glsl_type *type, const char *name); + +protected: + /** + * Method invoked for each leaf of the variable + * + * \param type Type of the field. + * \param name Fully qualified name of the field. + * \param row_major For a matrix type, is it stored row-major. + * \param record_type Type of the record containing the field. + * \param last_field Set if \c name is the last field of the structure + * containing it. This will always be false for items + * not contained in a structure or interface block. + * + * The default implementation just calls the other \c visit_field method. + */ + virtual void visit_field(const glsl_type *type, const char *name, + bool row_major, const glsl_type *record_type, + const unsigned packing, + bool last_field); + + /** + * Method invoked for each leaf of the variable + * + * \param type Type of the field. + * \param name Fully qualified name of the field. + * \param row_major For a matrix type, is it stored row-major. + */ + virtual void visit_field(const glsl_type *type, const char *name, + bool row_major) = 0; + + /** + * Visit a record before visiting its fields + * + * For structures-of-structures or interfaces-of-structures, this visits + * the inner structure before visiting its fields. + * + * The default implementation does nothing. + */ + virtual void visit_field(const glsl_struct_field *field); + + virtual void enter_record(const glsl_type *type, const char *name, + bool row_major, const unsigned packing); + + virtual void leave_record(const glsl_type *type, const char *name, + bool row_major, const unsigned packing); + + virtual void set_record_array_count(unsigned record_array_count); + +private: + /** + * \param name_length Length of the current name \b not including the + * terminating \c NUL character. + * \param last_field Set if \c name is the last field of the structure + * containing it. This will always be false for items + * not contained in a structure or interface block. + */ + void recursion(const glsl_type *t, char **name, size_t name_length, + bool row_major, const glsl_type *record_type, + const unsigned packing, + bool last_field, unsigned record_array_count); +}; + +void +linker_error(gl_shader_program *prog, const char *fmt, ...); + +void +linker_warning(gl_shader_program *prog, const char *fmt, ...); + +#endif /* GLSL_LINKER_H */ |