/**************************************************************************
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*
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* Copyright 2008 VMware, Inc.
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* All Rights Reserved.
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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
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#ifndef TGSI_SCAN_H
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#define TGSI_SCAN_H
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#include "pipe/p_compiler.h"
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#include "pipe/p_state.h"
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#include "pipe/p_shader_tokens.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* Shader summary info
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*/
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struct tgsi_shader_info
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{
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uint num_tokens;
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ubyte num_inputs;
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ubyte num_outputs;
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ubyte input_semantic_name[PIPE_MAX_SHADER_INPUTS]; /**< TGSI_SEMANTIC_x */
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ubyte input_semantic_index[PIPE_MAX_SHADER_INPUTS];
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ubyte input_interpolate[PIPE_MAX_SHADER_INPUTS];
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ubyte input_interpolate_loc[PIPE_MAX_SHADER_INPUTS];
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ubyte input_usage_mask[PIPE_MAX_SHADER_INPUTS];
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ubyte input_cylindrical_wrap[PIPE_MAX_SHADER_INPUTS];
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ubyte output_semantic_name[PIPE_MAX_SHADER_OUTPUTS]; /**< TGSI_SEMANTIC_x */
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ubyte output_semantic_index[PIPE_MAX_SHADER_OUTPUTS];
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ubyte output_usagemask[PIPE_MAX_SHADER_OUTPUTS];
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ubyte output_streams[PIPE_MAX_SHADER_OUTPUTS];
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ubyte num_system_values;
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ubyte system_value_semantic_name[PIPE_MAX_SHADER_INPUTS];
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ubyte processor;
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uint file_mask[TGSI_FILE_COUNT]; /**< bitmask of declared registers */
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uint file_count[TGSI_FILE_COUNT]; /**< number of declared registers */
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int file_max[TGSI_FILE_COUNT]; /**< highest index of declared registers */
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int const_file_max[PIPE_MAX_CONSTANT_BUFFERS];
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unsigned const_buffers_declared; /**< bitmask of declared const buffers */
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unsigned samplers_declared; /**< bitmask of declared samplers */
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ubyte sampler_targets[PIPE_MAX_SHADER_SAMPLER_VIEWS]; /**< TGSI_TEXTURE_x values */
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ubyte sampler_type[PIPE_MAX_SHADER_SAMPLER_VIEWS]; /**< TGSI_RETURN_TYPE_x */
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ubyte num_stream_output_components[4];
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ubyte input_array_first[PIPE_MAX_SHADER_INPUTS];
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ubyte input_array_last[PIPE_MAX_SHADER_INPUTS];
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ubyte output_array_first[PIPE_MAX_SHADER_OUTPUTS];
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ubyte output_array_last[PIPE_MAX_SHADER_OUTPUTS];
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unsigned array_max[TGSI_FILE_COUNT]; /**< highest index array per register file */
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uint immediate_count; /**< number of immediates declared */
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uint num_instructions;
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uint num_memory_instructions; /**< sampler, buffer, and image instructions */
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uint opcode_count[TGSI_OPCODE_LAST]; /**< opcode histogram */
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/**
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* If a tessellation control shader reads outputs, this describes which ones.
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*/
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boolean reads_pervertex_outputs;
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boolean reads_perpatch_outputs;
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boolean reads_tessfactor_outputs;
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ubyte colors_read; /**< which color components are read by the FS */
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ubyte colors_written;
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boolean reads_position; /**< does fragment shader read position? */
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boolean reads_z; /**< does fragment shader read depth? */
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boolean reads_samplemask; /**< does fragment shader read sample mask? */
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boolean reads_tess_factors; /**< If TES reads TESSINNER or TESSOUTER */
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boolean writes_z; /**< does fragment shader write Z value? */
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boolean writes_stencil; /**< does fragment shader write stencil value? */
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boolean writes_samplemask; /**< does fragment shader write sample mask? */
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boolean writes_edgeflag; /**< vertex shader outputs edgeflag */
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boolean uses_kill; /**< KILL or KILL_IF instruction used? */
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boolean uses_persp_center;
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boolean uses_persp_centroid;
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boolean uses_persp_sample;
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boolean uses_linear_center;
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boolean uses_linear_centroid;
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boolean uses_linear_sample;
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boolean uses_persp_opcode_interp_centroid;
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boolean uses_persp_opcode_interp_offset;
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boolean uses_persp_opcode_interp_sample;
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boolean uses_linear_opcode_interp_centroid;
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boolean uses_linear_opcode_interp_offset;
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boolean uses_linear_opcode_interp_sample;
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boolean uses_instanceid;
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boolean uses_vertexid;
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boolean uses_vertexid_nobase;
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boolean uses_basevertex;
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boolean uses_primid;
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boolean uses_frontface;
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boolean uses_invocationid;
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boolean uses_thread_id[3];
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boolean uses_block_id[3];
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boolean uses_block_size;
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boolean uses_grid_size;
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boolean writes_position;
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boolean writes_psize;
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boolean writes_clipvertex;
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boolean writes_primid;
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boolean writes_viewport_index;
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boolean writes_layer;
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boolean writes_memory; /**< contains stores or atomics to buffers or images */
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boolean is_msaa_sampler[PIPE_MAX_SAMPLERS];
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boolean uses_doubles; /**< uses any of the double instructions */
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boolean uses_derivatives;
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boolean uses_bindless_samplers;
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boolean uses_bindless_images;
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unsigned clipdist_writemask;
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unsigned culldist_writemask;
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unsigned num_written_culldistance;
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unsigned num_written_clipdistance;
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unsigned images_declared; /**< bitmask of declared images */
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/**
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* Bitmask indicating which declared image is a buffer.
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*/
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unsigned images_buffers;
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unsigned images_load; /**< bitmask of images using loads */
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unsigned images_store; /**< bitmask of images using stores */
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unsigned images_atomic; /**< bitmask of images using atomics */
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unsigned shader_buffers_declared; /**< bitmask of declared shader buffers */
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unsigned shader_buffers_load; /**< bitmask of shader buffers using loads */
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unsigned shader_buffers_store; /**< bitmask of shader buffers using stores */
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unsigned shader_buffers_atomic; /**< bitmask of shader buffers using atomics */
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/**
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* Bitmask indicating which register files are accessed with
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* indirect addressing. The bits are (1 << TGSI_FILE_x), etc.
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*/
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unsigned indirect_files;
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/**
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* Bitmask indicating which register files are read / written with
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* indirect addressing. The bits are (1 << TGSI_FILE_x).
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*/
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unsigned indirect_files_read;
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unsigned indirect_files_written;
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unsigned dim_indirect_files; /**< shader resource indexing */
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unsigned const_buffers_indirect; /**< const buffers using indirect addressing */
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unsigned properties[TGSI_PROPERTY_COUNT]; /* index with TGSI_PROPERTY_ */
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/**
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* Max nesting limit of loops/if's
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*/
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unsigned max_depth;
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};
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struct tgsi_array_info
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{
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/** Whether an array with this ID was declared. */
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bool declared;
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/** The OR of all writemasks used to write to this array. */
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ubyte writemask;
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/** The range with which the array was declared. */
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struct tgsi_declaration_range range;
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};
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struct tgsi_tessctrl_info
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{
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/** Whether all codepaths write tess factors in all invocations. */
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bool tessfactors_are_def_in_all_invocs;
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};
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extern void
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tgsi_scan_shader(const struct tgsi_token *tokens,
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struct tgsi_shader_info *info);
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void
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tgsi_scan_arrays(const struct tgsi_token *tokens,
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unsigned file,
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unsigned max_array_id,
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struct tgsi_array_info *arrays);
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void
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tgsi_scan_tess_ctrl(const struct tgsi_token *tokens,
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const struct tgsi_shader_info *info,
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struct tgsi_tessctrl_info *out);
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static inline bool
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tgsi_is_bindless_image_file(unsigned file)
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{
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return file != TGSI_FILE_IMAGE &&
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file != TGSI_FILE_MEMORY &&
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file != TGSI_FILE_BUFFER;
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}
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif /* TGSI_SCAN_H */
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