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