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 atomic_storage;
  37    bool descriptor_array_dynamic_indexing;
  38    bool device_group;
  39    bool draw_parameters;
  40    bool float64;
  41    bool geometry_streams;
  42    bool gcn_shader;
  43    bool image_ms_array;
  44    bool image_read_without_format;
  45    bool image_write_without_format;
  46    bool int16;
  47    bool int64;
  48    bool int64_atomics;
  49    bool min_lod;
  50    bool multiview;
  51    bool post_depth_coverage;
  52    bool runtime_descriptor_array;
  53    bool shader_viewport_index_layer;
  54    bool stencil_export;
  55    bool storage_8bit;
  56    bool storage_16bit;
  57    bool storage_image_ms;
  58    bool subgroup_arithmetic;
  59    bool subgroup_ballot;
  60    bool subgroup_basic;
  61    bool subgroup_quad;
  62    bool subgroup_shuffle;
  63    bool subgroup_vote;
  64    bool tessellation;
  65    bool transform_feedback;
  66    bool trinary_minmax;
  67    bool variable_pointers;
  68 };
  69
  70 typedef struct shader_info {
  71    const char *name;
  72
  73    /* Descriptive name provided by the client; may be NULL */
  74    const char *label;
  75
  76    /** The shader stage, such as MESA_SHADER_VERTEX. */
  77    gl_shader_stage stage;
  78
  79    /** The shader stage in a non SSO linked program that follows this stage,
  80      * such as MESA_SHADER_FRAGMENT.
  81      */
  82    gl_shader_stage next_stage;
  83
  84    /* Number of textures used by this shader */
  85    unsigned num_textures;
  86    /* Number of uniform buffers used by this shader */
  87    unsigned num_ubos;
  88    /* Number of atomic buffers used by this shader */
  89    unsigned num_abos;
  90    /* Number of shader storage buffers used by this shader */
  91    unsigned num_ssbos;
  92    /* Number of images used by this shader */
  93    unsigned num_images;
  94
  95    /* Which inputs are actually read */
  96    uint64_t inputs_read;
  97    /* Which outputs are actually written */
  98    uint64_t outputs_written;
  99    /* Which outputs are actually read */
 100    uint64_t outputs_read;
 101    /* Which system values are actually read */
 102    uint64_t system_values_read;
 103
 104    /* Which patch inputs are actually read */
 105    uint32_t patch_inputs_read;
 106    /* Which patch outputs are actually written */
 107    uint32_t patch_outputs_written;
 108    /* Which patch outputs are read */
 109    uint32_t patch_outputs_read;
 110
 111    /* Whether or not this shader ever uses textureGather() */
 112    bool uses_texture_gather;
 113
 114    /** Bitfield of which textures are used by texelFetch() */
 115    uint32_t textures_used_by_txf;
 116
 117    /**
 118     * True if this shader uses the fddx/fddy opcodes.
 119     *
 120     * Note that this does not include the "fine" and "coarse" variants.
 121     */
 122    bool uses_fddx_fddy;
 123
 124    /* The size of the gl_ClipDistance[] array, if declared. */
 125    unsigned clip_distance_array_size;
 126
 127    /* The size of the gl_CullDistance[] array, if declared. */
 128    unsigned cull_distance_array_size;
 129
 130    /* Whether or not separate shader objects were used */
 131    bool separate_shader;
 132
 133    /** Was this shader linked with any transform feedback varyings? */
 134    bool has_transform_feedback_varyings;
 135
 136    union {
 137       struct {
 138          /* Which inputs are doubles */
 139          uint64_t double_inputs;
 140       } vs;
 141
 142       struct {
 143          /** The number of vertices recieves per input primitive */
 144          unsigned vertices_in;
 145
 146          /** The output primitive type (GL enum value) */
 147          unsigned output_primitive;
 148
 149          /** The input primitive type (GL enum value) */
 150          unsigned input_primitive;
 151
 152          /** The maximum number of vertices the geometry shader might write. */
 153          unsigned vertices_out;
 154
 155          /** 1 .. MAX_GEOMETRY_SHADER_INVOCATIONS */
 156          unsigned invocations;
 157
 158          /** Whether or not this shader uses EndPrimitive */
 159          bool uses_end_primitive;
 160
 161          /** Whether or not this shader uses non-zero streams */
 162          bool uses_streams;
 163       } gs;
 164
 165       struct {
 166          bool uses_discard;
 167
 168          /**
 169           * Whether any inputs are declared with the "sample" qualifier.
 170           */
 171          bool uses_sample_qualifier;
 172
 173          /**
 174           * Whether early fragment tests are enabled as defined by
 175           * ARB_shader_image_load_store.
 176           */
 177          bool early_fragment_tests;
 178
 179          /**
 180           * Defined by INTEL_conservative_rasterization.
 181           */
 182          bool inner_coverage;
 183
 184          bool post_depth_coverage;
 185
 186          bool pixel_center_integer;
 187
 188          bool pixel_interlock_ordered;
 189          bool pixel_interlock_unordered;
 190          bool sample_interlock_ordered;
 191          bool sample_interlock_unordered;
 192
 193          /** gl_FragDepth layout for ARB_conservative_depth. */
 194          enum gl_frag_depth_layout depth_layout;
 195       } fs;
 196
 197       struct {
 198          unsigned local_size[3];
 199
 200          bool local_size_variable;
 201
 202          /**
 203           * Size of shared variables accessed by the compute shader.
 204           */
 205          unsigned shared_size;
 206       } cs;
 207
 208       /* Applies to both TCS and TES. */
 209       struct {
 210          /** The number of vertices in the TCS output patch. */
 211          unsigned tcs_vertices_out;
 212
 213          uint32_t primitive_mode; /* GL_TRIANGLES, GL_QUADS or GL_ISOLINES */
 214          enum gl_tess_spacing spacing;
 215          /** Is the vertex order counterclockwise? */
 216          bool ccw;
 217          bool point_mode;
 218       } tess;
 219    };
 220 } shader_info;
 221
 222 #ifdef __cplusplus
 223 }
 224 #endif
 225
 226 #endif /* SHADER_INFO_H */