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 };
  60
  61 typedef struct shader_info {
  62    const char *name;
  63
  64    /* Descriptive name provided by the client; may be NULL */
  65    const char *label;
  66
  67    /** The shader stage, such as MESA_SHADER_VERTEX. */
  68    gl_shader_stage stage;
  69
  70    /** The shader stage in a non SSO linked program that follows this stage,
  71      * such as MESA_SHADER_FRAGMENT.
  72      */
  73    gl_shader_stage next_stage;
  74
  75    /* Number of textures used by this shader */
  76    unsigned num_textures;
  77    /* Number of uniform buffers used by this shader */
  78    unsigned num_ubos;
  79    /* Number of atomic buffers used by this shader */
  80    unsigned num_abos;
  81    /* Number of shader storage buffers used by this shader */
  82    unsigned num_ssbos;
  83    /* Number of images used by this shader */
  84    unsigned num_images;
  85
  86    /* Which inputs are actually read */
  87    uint64_t inputs_read;
  88    /* Which outputs are actually written */
  89    uint64_t outputs_written;
  90    /* Which outputs are actually read */
  91    uint64_t outputs_read;
  92    /* Which system values are actually read */
  93    uint64_t system_values_read;
  94
  95    /* Which patch inputs are actually read */
  96    uint32_t patch_inputs_read;
  97    /* Which patch outputs are actually written */
  98    uint32_t patch_outputs_written;
  99    /* Which patch outputs are read */
 100    uint32_t patch_outputs_read;
 101
 102    /* Whether or not this shader ever uses textureGather() */
 103    bool uses_texture_gather;
 104
 105    /** Bitfield of which textures are used by texelFetch() */
 106    uint32_t textures_used_by_txf;
 107
 108    /**
 109     * True if this shader uses the fddx/fddy opcodes.
 110     *
 111     * Note that this does not include the "fine" and "coarse" variants.
 112     */
 113    bool uses_fddx_fddy;
 114
 115    /* The size of the gl_ClipDistance[] array, if declared. */
 116    unsigned clip_distance_array_size;
 117
 118    /* The size of the gl_CullDistance[] array, if declared. */
 119    unsigned cull_distance_array_size;
 120
 121    /* Whether or not separate shader objects were used */
 122    bool separate_shader;
 123
 124    /** Was this shader linked with any transform feedback varyings? */
 125    bool has_transform_feedback_varyings;
 126
 127    union {
 128       struct {
 129          /* Which inputs are doubles */
 130          uint64_t double_inputs;
 131
 132          /* Which inputs are actually read and are double */
 133          uint64_t double_inputs_read;
 134       } vs;
 135
 136       struct {
 137          /** The number of vertices recieves per input primitive */
 138          unsigned vertices_in;
 139
 140          /** The output primitive type (GL enum value) */
 141          unsigned output_primitive;
 142
 143          /** The input primitive type (GL enum value) */
 144          unsigned input_primitive;
 145
 146          /** The maximum number of vertices the geometry shader might write. */
 147          unsigned vertices_out;
 148
 149          /** 1 .. MAX_GEOMETRY_SHADER_INVOCATIONS */
 150          unsigned invocations;
 151
 152          /** Whether or not this shader uses EndPrimitive */
 153          bool uses_end_primitive;
 154
 155          /** Whether or not this shader uses non-zero streams */
 156          bool uses_streams;
 157       } gs;
 158
 159       struct {
 160          bool uses_discard;
 161
 162          /**
 163           * Whether any inputs are declared with the "sample" qualifier.
 164           */
 165          bool uses_sample_qualifier;
 166
 167          /**
 168           * Whether early fragment tests are enabled as defined by
 169           * ARB_shader_image_load_store.
 170           */
 171          bool early_fragment_tests;
 172
 173          /**
 174           * Defined by INTEL_conservative_rasterization.
 175           */
 176          bool inner_coverage;
 177
 178          bool post_depth_coverage;
 179
 180          bool pixel_center_integer;
 181
 182          /** gl_FragDepth layout for ARB_conservative_depth. */
 183          enum gl_frag_depth_layout depth_layout;
 184       } fs;
 185
 186       struct {
 187          unsigned local_size[3];
 188
 189          bool local_size_variable;
 190
 191          /**
 192           * Size of shared variables accessed by the compute shader.
 193           */
 194          unsigned shared_size;
 195       } cs;
 196
 197       /* Applies to both TCS and TES. */
 198       struct {
 199          /** The number of vertices in the TCS output patch. */
 200          unsigned tcs_vertices_out;
 201
 202          uint32_t primitive_mode; /* GL_TRIANGLES, GL_QUADS or GL_ISOLINES */
 203          enum gl_tess_spacing spacing;
 204          /** Is the vertex order counterclockwise? */
 205          bool ccw;
 206          bool point_mode;
 207       } tess;
 208    };
 209 } shader_info;
 210
 211 #ifdef __cplusplus
 212 }
 213 #endif
 214
 215 #endif /* SHADER_INFO_H */