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