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