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 descriptor_array_dynamic_indexing;
  39    bool device_group;
  40    bool draw_parameters;
  41    bool float64;
  42    bool geometry_streams;
  43    bool gcn_shader;
  44    bool image_ms_array;
  45    bool image_read_without_format;
  46    bool image_write_without_format;
  47    bool int8;
  48    bool int16;
  49    bool int64;
  50    bool int64_atomics;
  51    bool kernel;
  52    bool min_lod;
  53    bool multiview;
  54    bool post_depth_coverage;
  55    bool runtime_descriptor_array;
  56    bool shader_viewport_index_layer;
  57    bool stencil_export;
  58    bool storage_8bit;
  59    bool storage_16bit;
  60    bool storage_image_ms;
  61    bool subgroup_arithmetic;
  62    bool subgroup_ballot;
  63    bool subgroup_basic;
  64    bool subgroup_quad;
  65    bool subgroup_shuffle;
  66    bool subgroup_vote;
  67    bool tessellation;
  68    bool transform_feedback;
  69    bool trinary_minmax;
  70    bool variable_pointers;
  71 };
  72
  73 typedef struct shader_info {
  74    const char *name;
  75
  76    /* Descriptive name provided by the client; may be NULL */
  77    const char *label;
  78
  79    /** The shader stage, such as MESA_SHADER_VERTEX. */
  80    gl_shader_stage stage;
  81
  82    /** The shader stage in a non SSO linked program that follows this stage,
  83      * such as MESA_SHADER_FRAGMENT.
  84      */
  85    gl_shader_stage next_stage;
  86
  87    /* Number of textures used by this shader */
  88    unsigned num_textures;
  89    /* Number of uniform buffers used by this shader */
  90    unsigned num_ubos;
  91    /* Number of atomic buffers used by this shader */
  92    unsigned num_abos;
  93    /* Number of shader storage buffers used by this shader */
  94    unsigned num_ssbos;
  95    /* Number of images used by this shader */
  96    unsigned num_images;
  97
  98    /* Which inputs are actually read */
  99    uint64_t inputs_read;
 100    /* Which outputs are actually written */
 101    uint64_t outputs_written;
 102    /* Which outputs are actually read */
 103    uint64_t outputs_read;
 104    /* Which system values are actually read */
 105    uint64_t system_values_read;
 106
 107    /* Which patch inputs are actually read */
 108    uint32_t patch_inputs_read;
 109    /* Which patch outputs are actually written */
 110    uint32_t patch_outputs_written;
 111    /* Which patch outputs are read */
 112    uint32_t patch_outputs_read;
 113
 114    /* Whether or not this shader ever uses textureGather() */
 115    bool uses_texture_gather;
 116
 117    /** Bitfield of which textures are used by texelFetch() */
 118    uint32_t textures_used_by_txf;
 119
 120    /**
 121     * True if this shader uses the fddx/fddy opcodes.
 122     *
 123     * Note that this does not include the "fine" and "coarse" variants.
 124     */
 125    bool uses_fddx_fddy;
 126
 127    /**
 128     * True if this shader uses 64-bit ALU operations
 129     */
 130    bool uses_64bit;
 131
 132    /* The size of the gl_ClipDistance[] array, if declared. */
 133    unsigned clip_distance_array_size;
 134
 135    /* The size of the gl_CullDistance[] array, if declared. */
 136    unsigned cull_distance_array_size;
 137
 138    /* Whether or not separate shader objects were used */
 139    bool separate_shader;
 140
 141    /** Was this shader linked with any transform feedback varyings? */
 142    bool has_transform_feedback_varyings;
 143
 144    union {
 145       struct {
 146          /* Which inputs are doubles */
 147          uint64_t double_inputs;
 148       } vs;
 149
 150       struct {
 151          /** The number of vertices recieves per input primitive */
 152          unsigned vertices_in;
 153
 154          /** The output primitive type (GL enum value) */
 155          unsigned output_primitive;
 156
 157          /** The input primitive type (GL enum value) */
 158          unsigned input_primitive;
 159
 160          /** The maximum number of vertices the geometry shader might write. */
 161          unsigned vertices_out;
 162
 163          /** 1 .. MAX_GEOMETRY_SHADER_INVOCATIONS */
 164          unsigned invocations;
 165
 166          /** Whether or not this shader uses EndPrimitive */
 167          bool uses_end_primitive;
 168
 169          /** Whether or not this shader uses non-zero streams */
 170          bool uses_streams;
 171       } gs;
 172
 173       struct {
 174          bool uses_discard;
 175
 176          /**
 177           * Whether any inputs are declared with the "sample" qualifier.
 178           */
 179          bool uses_sample_qualifier;
 180
 181          /**
 182           * Whether early fragment tests are enabled as defined by
 183           * ARB_shader_image_load_store.
 184           */
 185          bool early_fragment_tests;
 186
 187          /**
 188           * Defined by INTEL_conservative_rasterization.
 189           */
 190          bool inner_coverage;
 191
 192          bool post_depth_coverage;
 193
 194          bool pixel_center_integer;
 195
 196          bool pixel_interlock_ordered;
 197          bool pixel_interlock_unordered;
 198          bool sample_interlock_ordered;
 199          bool sample_interlock_unordered;
 200
 201          /** gl_FragDepth layout for ARB_conservative_depth. */
 202          enum gl_frag_depth_layout depth_layout;
 203       } fs;
 204
 205       struct {
 206          unsigned local_size[3];
 207
 208          bool local_size_variable;
 209
 210          /**
 211           * Size of shared variables accessed by the compute shader.
 212           */
 213          unsigned shared_size;
 214       } cs;
 215
 216       /* Applies to both TCS and TES. */
 217       struct {
 218          /** The number of vertices in the TCS output patch. */
 219          unsigned tcs_vertices_out;
 220
 221          uint32_t primitive_mode; /* GL_TRIANGLES, GL_QUADS or GL_ISOLINES */
 222          enum gl_tess_spacing spacing;
 223          /** Is the vertex order counterclockwise? */
 224          bool ccw;
 225          bool point_mode;
 226       } tess;
 227    };
 228 } shader_info;
 229
 230 #ifdef __cplusplus
 231 }
 232 #endif
 233
 234 #endif /* SHADER_INFO_H */