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