src/compiler/shader_info.h

   1 /*
   2  * Copyright © 2016 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  *
  23  */
  24
  25 #ifndef SHADER_INFO_H
  26 #define SHADER_INFO_H
  27
  28 #include "shader_enums.h"
  29 #include <stdint.h>
  30
  31 #ifdef __cplusplus
  32 extern "C" {
  33 #endif
  34
  35 struct spirv_supported_capabilities {
  36    bool float64;
  37    bool image_ms_array;
  38    bool tessellation;
  39    bool device_group;
  40    bool draw_parameters;
  41    bool image_read_without_format;
  42    bool image_write_without_format;
  43    bool int64;
  44    bool multiview;
  45    bool variable_pointers;
  46    bool storage_16bit;
  47    bool int16;
  48    bool shader_viewport_index_layer;
  49    bool subgroup_arithmetic;
  50    bool subgroup_ballot;
  51    bool subgroup_basic;
  52    bool subgroup_quad;
  53    bool subgroup_shuffle;
  54    bool subgroup_vote;
  55    bool gcn_shader;
  56    bool trinary_minmax;
  57    bool descriptor_array_dynamic_indexing;
  58    bool runtime_descriptor_array;
  59    bool stencil_export;
  60 };
  61
  62 typedef struct shader_info {
  63    const char *name;
  64
  65    /* Descriptive name provided by the client; may be NULL */
  66    const char *label;
  67
  68    /** The shader stage, such as MESA_SHADER_VERTEX. */
  69    gl_shader_stage stage;
  70
  71    /** The shader stage in a non SSO linked program that follows this stage,
  72      * such as MESA_SHADER_FRAGMENT.
  73      */
  74    gl_shader_stage next_stage;
  75
  76    /* Number of textures used by this shader */
  77    unsigned num_textures;
  78    /* Number of uniform buffers used by this shader */
  79    unsigned num_ubos;
  80    /* Number of atomic buffers used by this shader */
  81    unsigned num_abos;
  82    /* Number of shader storage buffers used by this shader */
  83    unsigned num_ssbos;
  84    /* Number of images used by this shader */
  85    unsigned num_images;
  86
  87    /* Which inputs are actually read */
  88    uint64_t inputs_read;
  89    /* Which outputs are actually written */
  90    uint64_t outputs_written;
  91    /* Which outputs are actually read */
  92    uint64_t outputs_read;
  93    /* Which system values are actually read */
  94    uint64_t system_values_read;
  95
  96    /* Which patch inputs are actually read */
  97    uint32_t patch_inputs_read;
  98    /* Which patch outputs are actually written */
  99    uint32_t patch_outputs_written;
 100    /* Which patch outputs are read */
 101    uint32_t patch_outputs_read;
 102
 103    /* Whether or not this shader ever uses textureGather() */
 104    bool uses_texture_gather;
 105
 106    /** Bitfield of which textures are used by texelFetch() */
 107    uint32_t textures_used_by_txf;
 108
 109    /**
 110     * True if this shader uses the fddx/fddy opcodes.
 111     *
 112     * Note that this does not include the "fine" and "coarse" variants.
 113     */
 114    bool uses_fddx_fddy;
 115
 116    /* The size of the gl_ClipDistance[] array, if declared. */
 117    unsigned clip_distance_array_size;
 118
 119    /* The size of the gl_CullDistance[] array, if declared. */
 120    unsigned cull_distance_array_size;
 121
 122    /* Whether or not separate shader objects were used */
 123    bool separate_shader;
 124
 125    /** Was this shader linked with any transform feedback varyings? */
 126    bool has_transform_feedback_varyings;
 127
 128    union {
 129       struct {
 130          /* Which inputs are doubles */
 131          uint64_t double_inputs;
 132
 133          /* Which inputs are actually read and are double */
 134          uint64_t double_inputs_read;
 135       } vs;
 136
 137       struct {
 138          /** The number of vertices recieves per input primitive */
 139          unsigned vertices_in;
 140
 141          /** The output primitive type (GL enum value) */
 142          unsigned output_primitive;
 143
 144          /** The input primitive type (GL enum value) */
 145          unsigned input_primitive;
 146
 147          /** The maximum number of vertices the geometry shader might write. */
 148          unsigned vertices_out;
 149
 150          /** 1 .. MAX_GEOMETRY_SHADER_INVOCATIONS */
 151          unsigned invocations;
 152
 153          /** Whether or not this shader uses EndPrimitive */
 154          bool uses_end_primitive;
 155
 156          /** Whether or not this shader uses non-zero streams */
 157          bool uses_streams;
 158       } gs;
 159
 160       struct {
 161          bool uses_discard;
 162
 163          /**
 164           * Whether any inputs are declared with the "sample" qualifier.
 165           */
 166          bool uses_sample_qualifier;
 167
 168          /**
 169           * Whether early fragment tests are enabled as defined by
 170           * ARB_shader_image_load_store.
 171           */
 172          bool early_fragment_tests;
 173
 174          /**
 175           * Defined by INTEL_conservative_rasterization.
 176           */
 177          bool inner_coverage;
 178
 179          bool post_depth_coverage;
 180
 181          bool pixel_center_integer;
 182
 183          bool pixel_interlock_ordered;
 184          bool pixel_interlock_unordered;
 185          bool sample_interlock_ordered;
 186          bool sample_interlock_unordered;
 187
 188          /** gl_FragDepth layout for ARB_conservative_depth. */
 189          enum gl_frag_depth_layout depth_layout;
 190       } fs;
 191
 192       struct {
 193          unsigned local_size[3];
 194
 195          bool local_size_variable;
 196
 197          /**
 198           * Size of shared variables accessed by the compute shader.
 199           */
 200          unsigned shared_size;
 201       } cs;
 202
 203       /* Applies to both TCS and TES. */
 204       struct {
 205          /** The number of vertices in the TCS output patch. */
 206          unsigned tcs_vertices_out;
 207
 208          uint32_t primitive_mode; /* GL_TRIANGLES, GL_QUADS or GL_ISOLINES */
 209          enum gl_tess_spacing spacing;
 210          /** Is the vertex order counterclockwise? */
 211          bool ccw;
 212          bool point_mode;
 213       } tess;
 214    };
 215 } shader_info;
 216
 217 #ifdef __cplusplus
 218 }
 219 #endif
 220
 221 #endif /* SHADER_INFO_H */