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