219 lines
8.6 KiB
C++
219 lines
8.6 KiB
C++
/* -*- c++ -*- */
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/*
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* Copyright © 2010 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#ifndef GLSL_LINKER_H
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#define GLSL_LINKER_H
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#include "linker_util.h"
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struct gl_shader_program;
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struct gl_shader;
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struct gl_linked_shader;
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extern bool
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link_function_calls(gl_shader_program *prog, gl_linked_shader *main,
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gl_shader **shader_list, unsigned num_shaders);
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extern void
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link_invalidate_variable_locations(exec_list *ir);
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extern void
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link_assign_uniform_locations(struct gl_shader_program *prog,
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struct gl_context *ctx);
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extern void
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link_set_uniform_initializers(struct gl_shader_program *prog,
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unsigned int boolean_true);
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extern int
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link_cross_validate_uniform_block(void *mem_ctx,
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struct gl_uniform_block **linked_blocks,
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unsigned int *num_linked_blocks,
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struct gl_uniform_block *new_block);
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extern void
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link_uniform_blocks(void *mem_ctx,
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struct gl_context *ctx,
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struct gl_shader_program *prog,
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struct gl_linked_shader *shader,
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struct gl_uniform_block **ubo_blocks,
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unsigned *num_ubo_blocks,
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struct gl_uniform_block **ssbo_blocks,
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unsigned *num_ssbo_blocks);
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bool
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validate_intrastage_arrays(struct gl_shader_program *prog,
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ir_variable *const var,
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ir_variable *const existing,
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bool match_precision = true);
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void
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validate_intrastage_interface_blocks(struct gl_shader_program *prog,
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const gl_shader **shader_list,
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unsigned num_shaders);
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void
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validate_interstage_inout_blocks(struct gl_shader_program *prog,
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const gl_linked_shader *producer,
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const gl_linked_shader *consumer);
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void
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validate_interstage_uniform_blocks(struct gl_shader_program *prog,
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gl_linked_shader **stages);
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extern void
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link_assign_atomic_counter_resources(struct gl_context *ctx,
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struct gl_shader_program *prog);
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extern void
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link_check_atomic_counter_resources(struct gl_context *ctx,
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struct gl_shader_program *prog);
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extern struct gl_linked_shader *
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link_intrastage_shaders(void *mem_ctx,
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struct gl_context *ctx,
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struct gl_shader_program *prog,
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struct gl_shader **shader_list,
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unsigned num_shaders,
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bool allow_missing_main);
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extern unsigned
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link_calculate_matrix_stride(const glsl_type *matrix, bool row_major,
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enum glsl_interface_packing packing);
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/**
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* Class for processing all of the leaf fields of a variable that corresponds
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* to a program resource.
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*
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* The leaf fields are all the parts of the variable that the application
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* could query using \c glGetProgramResourceIndex (or that could be returned
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* by \c glGetProgramResourceName).
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*
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* Classes my derive from this class to implement specific functionality.
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* This class only provides the mechanism to iterate over the leaves. Derived
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* classes must implement \c ::visit_field and may override \c ::process.
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*/
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class program_resource_visitor {
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public:
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/**
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* Begin processing a variable
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*
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* Classes that overload this function should call \c ::process from the
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* base class to start the recursive processing of the variable.
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*
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* \param var The variable that is to be processed
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*
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* Calls \c ::visit_field for each leaf of the variable.
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*
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* \warning
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* When processing a uniform block, this entry should only be used in cases
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* where the row / column ordering of matrices in the block does not
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* matter. For example, enumerating the names of members of the block, but
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* not for determining the offsets of members.
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*/
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void process(ir_variable *var, bool use_std430_as_default);
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/**
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* Begin processing a variable
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*
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* Classes that overload this function should call \c ::process from the
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* base class to start the recursive processing of the variable.
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*
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* \param var The variable that is to be processed
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* \param var_type The glsl_type reference of the variable
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*
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* Calls \c ::visit_field for each leaf of the variable.
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*
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* \warning
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* When processing a uniform block, this entry should only be used in cases
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* where the row / column ordering of matrices in the block does not
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* matter. For example, enumerating the names of members of the block, but
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* not for determining the offsets of members.
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*/
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void process(ir_variable *var, const glsl_type *var_type,
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bool use_std430_as_default);
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/**
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* Begin processing a variable of a structured type.
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*
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* This flavor of \c process should be used to handle structured types
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* (i.e., structures, interfaces, or arrays there of) that need special
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* name handling. A common usage is to handle cases where the block name
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* (instead of the instance name) is used for an interface block.
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*
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* \param type Type that is to be processed, associated with \c name
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* \param name Base name of the structured variable being processed
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*
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* \note
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* \c type must be \c GLSL_TYPE_RECORD, \c GLSL_TYPE_INTERFACE, or an array
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* there of.
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*/
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void process(const glsl_type *type, const char *name,
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bool use_std430_as_default);
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protected:
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/**
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* Method invoked for each leaf of the variable
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*
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* \param type Type of the field.
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* \param name Fully qualified name of the field.
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* \param row_major For a matrix type, is it stored row-major.
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* \param record_type Type of the record containing the field.
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* \param last_field Set if \c name is the last field of the structure
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* containing it. This will always be false for items
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* not contained in a structure or interface block.
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*/
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virtual void visit_field(const glsl_type *type, const char *name,
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bool row_major, const glsl_type *record_type,
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const enum glsl_interface_packing packing,
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bool last_field) = 0;
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virtual void enter_record(const glsl_type *type, const char *name,
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bool row_major, const enum glsl_interface_packing packing);
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virtual void leave_record(const glsl_type *type, const char *name,
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bool row_major, const enum glsl_interface_packing packing);
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virtual void set_buffer_offset(unsigned offset);
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virtual void set_record_array_count(unsigned record_array_count);
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private:
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/**
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* \param name_length Length of the current name \b not including the
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* terminating \c NUL character.
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* \param last_field Set if \c name is the last field of the structure
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* containing it. This will always be false for items
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* not contained in a structure or interface block.
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*/
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void recursion(const glsl_type *t, char **name, size_t name_length,
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bool row_major, const glsl_type *record_type,
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const enum glsl_interface_packing packing,
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bool last_field, unsigned record_array_count,
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const glsl_struct_field *named_ifc_member);
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};
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#endif /* GLSL_LINKER_H */
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