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