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    bool atomic_storage;
  61    bool storage_8bit;
  62    bool post_depth_coverage;
  63    bool transform_feedback;
  64    bool geometry_streams;
  65    bool int64_atomics;
  66 };
  67
  68 typedef struct shader_info {
  69    const char *name;
  70
  71    /* Descriptive name provided by the client; may be NULL */
  72    const char *label;
  73
  74    /** The shader stage, such as MESA_SHADER_VERTEX. */
  75    gl_shader_stage stage;
  76
  77    /** The shader stage in a non SSO linked program that follows this stage,
  78      * such as MESA_SHADER_FRAGMENT.
  79      */
  80    gl_shader_stage next_stage;
  81
  82    /* Number of textures used by this shader */
  83    unsigned num_textures;
  84    /* Number of uniform buffers used by this shader */
  85    unsigned num_ubos;
  86    /* Number of atomic buffers used by this shader */
  87    unsigned num_abos;
  88    /* Number of shader storage buffers used by this shader */
  89    unsigned num_ssbos;
  90    /* Number of images used by this shader */
  91    unsigned num_images;
  92
  93    /* Which inputs are actually read */
  94    uint64_t inputs_read;
  95    /* Which outputs are actually written */
  96    uint64_t outputs_written;
  97    /* Which outputs are actually read */
  98    uint64_t outputs_read;
  99    /* Which system values are actually read */
 100    uint64_t system_values_read;
 101
 102    /* Which patch inputs are actually read */
 103    uint32_t patch_inputs_read;
 104    /* Which patch outputs are actually written */
 105    uint32_t patch_outputs_written;
 106    /* Which patch outputs are read */
 107    uint32_t patch_outputs_read;
 108
 109    /* Whether or not this shader ever uses textureGather() */
 110    bool uses_texture_gather;
 111
 112    /** Bitfield of which textures are used by texelFetch() */
 113    uint32_t textures_used_by_txf;
 114
 115    /**
 116     * True if this shader uses the fddx/fddy opcodes.
 117     *
 118     * Note that this does not include the "fine" and "coarse" variants.
 119     */
 120    bool uses_fddx_fddy;
 121
 122    /* The size of the gl_ClipDistance[] array, if declared. */
 123    unsigned clip_distance_array_size;
 124
 125    /* The size of the gl_CullDistance[] array, if declared. */
 126    unsigned cull_distance_array_size;
 127
 128    /* Whether or not separate shader objects were used */
 129    bool separate_shader;
 130
 131    /** Was this shader linked with any transform feedback varyings? */
 132    bool has_transform_feedback_varyings;
 133
 134    union {
 135       struct {
 136          /* Which inputs are doubles */
 137          uint64_t double_inputs;
 138       } vs;
 139
 140       struct {
 141          /** The number of vertices recieves per input primitive */
 142          unsigned vertices_in;
 143
 144          /** The output primitive type (GL enum value) */
 145          unsigned output_primitive;
 146
 147          /** The input primitive type (GL enum value) */
 148          unsigned input_primitive;
 149
 150          /** The maximum number of vertices the geometry shader might write. */
 151          unsigned vertices_out;
 152
 153          /** 1 .. MAX_GEOMETRY_SHADER_INVOCATIONS */
 154          unsigned invocations;
 155
 156          /** Whether or not this shader uses EndPrimitive */
 157          bool uses_end_primitive;
 158
 159          /** Whether or not this shader uses non-zero streams */
 160          bool uses_streams;
 161       } gs;
 162
 163       struct {
 164          bool uses_discard;
 165
 166          /**
 167           * Whether any inputs are declared with the "sample" qualifier.
 168           */
 169          bool uses_sample_qualifier;
 170
 171          /**
 172           * Whether early fragment tests are enabled as defined by
 173           * ARB_shader_image_load_store.
 174           */
 175          bool early_fragment_tests;
 176
 177          /**
 178           * Defined by INTEL_conservative_rasterization.
 179           */
 180          bool inner_coverage;
 181
 182          bool post_depth_coverage;
 183
 184          bool pixel_center_integer;
 185
 186          bool pixel_interlock_ordered;
 187          bool pixel_interlock_unordered;
 188          bool sample_interlock_ordered;
 189          bool sample_interlock_unordered;
 190
 191          /** gl_FragDepth layout for ARB_conservative_depth. */
 192          enum gl_frag_depth_layout depth_layout;
 193       } fs;
 194
 195       struct {
 196          unsigned local_size[3];
 197
 198          bool local_size_variable;
 199
 200          /**
 201           * Size of shared variables accessed by the compute shader.
 202           */
 203          unsigned shared_size;
 204       } cs;
 205
 206       /* Applies to both TCS and TES. */
 207       struct {
 208          /** The number of vertices in the TCS output patch. */
 209          unsigned tcs_vertices_out;
 210
 211          uint32_t primitive_mode; /* GL_TRIANGLES, GL_QUADS or GL_ISOLINES */
 212          enum gl_tess_spacing spacing;
 213          /** Is the vertex order counterclockwise? */
 214          bool ccw;
 215          bool point_mode;
 216       } tess;
 217    };
 218 } shader_info;
 219
 220 #ifdef __cplusplus
 221 }
 222 #endif
 223
 224 #endif /* SHADER_INFO_H */