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 address;
  37    bool atomic_storage;
  38    bool derivative_group;
  39    bool descriptor_array_dynamic_indexing;
  40    bool descriptor_array_non_uniform_indexing;
  41    bool descriptor_indexing;
  42    bool device_group;
  43    bool draw_parameters;
  44    bool float64;
  45    bool fragment_shader_sample_interlock;
  46    bool fragment_shader_pixel_interlock;
  47    bool geometry_streams;
  48    bool image_ms_array;
  49    bool image_read_without_format;
  50    bool image_write_without_format;
  51    bool int8;
  52    bool int16;
  53    bool int64;
  54    bool int64_atomics;
  55    bool kernel;
  56    bool min_lod;
  57    bool multiview;
  58    bool physical_storage_buffer_address;
  59    bool post_depth_coverage;
  60    bool runtime_descriptor_array;
  61    bool shader_viewport_index_layer;
  62    bool stencil_export;
  63    bool storage_8bit;
  64    bool storage_16bit;
  65    bool storage_image_ms;
  66    bool subgroup_arithmetic;
  67    bool subgroup_ballot;
  68    bool subgroup_basic;
  69    bool subgroup_quad;
  70    bool subgroup_shuffle;
  71    bool subgroup_vote;
  72    bool tessellation;
  73    bool transform_feedback;
  74    bool variable_pointers;
  75    bool float16;
  76    bool amd_gcn_shader;
  77    bool amd_shader_ballot;
  78    bool amd_trinary_minmax;
  79 };
  80
  81 typedef struct shader_info {
  82    const char *name;
  83
  84    /* Descriptive name provided by the client; may be NULL */
  85    const char *label;
  86
  87    /** The shader stage, such as MESA_SHADER_VERTEX. */
  88    gl_shader_stage stage;
  89
  90    /** The shader stage in a non SSO linked program that follows this stage,
  91      * such as MESA_SHADER_FRAGMENT.
  92      */
  93    gl_shader_stage next_stage;
  94
  95    /* Number of textures used by this shader */
  96    unsigned num_textures;
  97    /* Number of uniform buffers used by this shader */
  98    unsigned num_ubos;
  99    /* Number of atomic buffers used by this shader */
 100    unsigned num_abos;
 101    /* Number of shader storage buffers used by this shader */
 102    unsigned num_ssbos;
 103    /* Number of images used by this shader */
 104    unsigned num_images;
 105
 106    /* Which inputs are actually read */
 107    uint64_t inputs_read;
 108    /* Which outputs are actually written */
 109    uint64_t outputs_written;
 110    /* Which outputs are actually read */
 111    uint64_t outputs_read;
 112    /* Which system values are actually read */
 113    uint64_t system_values_read;
 114
 115    /* Which patch inputs are actually read */
 116    uint32_t patch_inputs_read;
 117    /* Which patch outputs are actually written */
 118    uint32_t patch_outputs_written;
 119    /* Which patch outputs are read */
 120    uint32_t patch_outputs_read;
 121
 122    /* Whether or not this shader ever uses textureGather() */
 123    bool uses_texture_gather;
 124
 125    /** Bitfield of which textures are used */
 126    uint32_t textures_used;
 127
 128    /** Bitfield of which textures are used by texelFetch() */
 129    uint32_t textures_used_by_txf;
 130
 131    /**
 132     * True if this shader uses the fddx/fddy opcodes.
 133     *
 134     * Note that this does not include the "fine" and "coarse" variants.
 135     */
 136    bool uses_fddx_fddy;
 137
 138    /**
 139     * True if this shader uses 64-bit ALU operations
 140     */
 141    bool uses_64bit;
 142
 143    /* The size of the gl_ClipDistance[] array, if declared. */
 144    unsigned clip_distance_array_size;
 145
 146    /* The size of the gl_CullDistance[] array, if declared. */
 147    unsigned cull_distance_array_size;
 148
 149    /* Whether or not separate shader objects were used */
 150    bool separate_shader;
 151
 152    /** Was this shader linked with any transform feedback varyings? */
 153    bool has_transform_feedback_varyings;
 154
 155    union {
 156       struct {
 157          /* Which inputs are doubles */
 158          uint64_t double_inputs;
 159
 160          /* True if the shader writes position in window space coordinates pre-transform */
 161          bool window_space_position;
 162       } vs;
 163
 164       struct {
 165          /** The number of vertices recieves per input primitive */
 166          unsigned vertices_in;
 167
 168          /** The output primitive type (GL enum value) */
 169          unsigned output_primitive;
 170
 171          /** The input primitive type (GL enum value) */
 172          unsigned input_primitive;
 173
 174          /** The maximum number of vertices the geometry shader might write. */
 175          unsigned vertices_out;
 176
 177          /** 1 .. MAX_GEOMETRY_SHADER_INVOCATIONS */
 178          unsigned invocations;
 179
 180          /** Whether or not this shader uses EndPrimitive */
 181          bool uses_end_primitive;
 182
 183          /** Whether or not this shader uses non-zero streams */
 184          bool uses_streams;
 185       } gs;
 186
 187       struct {
 188          bool uses_discard;
 189
 190          /**
 191           * Whether any inputs are declared with the "sample" qualifier.
 192           */
 193          bool uses_sample_qualifier;
 194
 195          /**
 196           * Whether early fragment tests are enabled as defined by
 197           * ARB_shader_image_load_store.
 198           */
 199          bool early_fragment_tests;
 200
 201          /**
 202           * Defined by INTEL_conservative_rasterization.
 203           */
 204          bool inner_coverage;
 205
 206          bool post_depth_coverage;
 207
 208          /**
 209           * \name ARB_fragment_coord_conventions
 210           * @{
 211           */
 212          bool pixel_center_integer;
 213          bool origin_upper_left;
 214          /*@}*/
 215
 216          bool pixel_interlock_ordered;
 217          bool pixel_interlock_unordered;
 218          bool sample_interlock_ordered;
 219          bool sample_interlock_unordered;
 220
 221          /**
 222           * Flags whether NIR's base types on the FS color outputs should be
 223           * ignored.
 224           *
 225           * GLSL requires that fragment shader output base types match the
 226           * render target's base types for the behavior to be defined.  From
 227           * the GL 4.6 spec:
 228           *
 229           *     "If the values written by the fragment shader do not match the
 230           *      format(s) of the corresponding color buffer(s), the result is
 231           *      undefined."
 232           *
 233           * However, for NIR shaders translated from TGSI, we don't have the
 234           * output types any more, so the driver will need to do whatever
 235           * fixups are necessary to handle effectively untyped data being
 236           * output from the FS.
 237           */
 238          bool untyped_color_outputs;
 239
 240          /** gl_FragDepth layout for ARB_conservative_depth. */
 241          enum gl_frag_depth_layout depth_layout;
 242       } fs;
 243
 244       struct {
 245          unsigned local_size[3];
 246
 247          bool local_size_variable;
 248
 249          /**
 250           * Size of shared variables accessed by the compute shader.
 251           */
 252          unsigned shared_size;
 253
 254
 255          /**
 256           * pointer size is:
 257           *   AddressingModelLogical:    0    (default)
 258           *   AddressingModelPhysical32: 32
 259           *   AddressingModelPhysical64: 64
 260           */
 261          unsigned ptr_size;
 262
 263          /*
 264           * Arrangement of invocations used to calculate derivatives in a compute
 265           * shader.  From NV_compute_shader_derivatives.
 266           */
 267          enum gl_derivative_group derivative_group;
 268       } cs;
 269
 270       /* Applies to both TCS and TES. */
 271       struct {
 272          /** The number of vertices in the TCS output patch. */
 273          unsigned tcs_vertices_out;
 274
 275          uint32_t primitive_mode; /* GL_TRIANGLES, GL_QUADS or GL_ISOLINES */
 276          enum gl_tess_spacing spacing;
 277          /** Is the vertex order counterclockwise? */
 278          bool ccw;
 279          bool point_mode;
 280       } tess;
 281    };
 282 } shader_info;
 283
 284 #ifdef __cplusplus
 285 }
 286 #endif
 287
 288 #endif /* SHADER_INFO_H */