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
  30 #ifdef __cplusplus
  31 extern "C" {
  32 #endif
  33
  34 struct spirv_supported_capabilities {
  35    bool float64;
  36    bool image_ms_array;
  37    bool tessellation;
  38    bool draw_parameters;
  39    bool image_read_without_format;
  40    bool image_write_without_format;
  41    bool int64;
  42    bool multiview;
  43    bool variable_pointers;
  44    bool storage_16bit;
  45 };
  46
  47 typedef struct shader_info {
  48    const char *name;
  49
  50    /* Descriptive name provided by the client; may be NULL */
  51    const char *label;
  52
  53    /** The shader stage, such as MESA_SHADER_VERTEX. */
  54    gl_shader_stage stage;
  55
  56    /* Number of textures used by this shader */
  57    unsigned num_textures;
  58    /* Number of uniform buffers used by this shader */
  59    unsigned num_ubos;
  60    /* Number of atomic buffers used by this shader */
  61    unsigned num_abos;
  62    /* Number of shader storage buffers used by this shader */
  63    unsigned num_ssbos;
  64    /* Number of images used by this shader */
  65    unsigned num_images;
  66
  67    /* Which inputs are actually read */
  68    uint64_t inputs_read;
  69    /* Which inputs are actually read and are double */
  70    uint64_t double_inputs_read;
  71    /* Which outputs are actually written */
  72    uint64_t outputs_written;
  73    /* Which outputs are actually read */
  74    uint64_t outputs_read;
  75    /* Which system values are actually read */
  76    uint64_t system_values_read;
  77
  78    /* Which patch inputs are actually read */
  79    uint32_t patch_inputs_read;
  80    /* Which patch outputs are actually written */
  81    uint32_t patch_outputs_written;
  82    /* Which patch outputs are read */
  83    uint32_t patch_outputs_read;
  84
  85    /* Whether or not this shader ever uses textureGather() */
  86    bool uses_texture_gather;
  87
  88    /** Bitfield of which textures are used by texelFetch() */
  89    uint32_t textures_used_by_txf;
  90
  91    /**
  92     * True if this shader uses the fddx/fddy opcodes.
  93     *
  94     * Note that this does not include the "fine" and "coarse" variants.
  95     */
  96    bool uses_fddx_fddy;
  97
  98    /* The size of the gl_ClipDistance[] array, if declared. */
  99    unsigned clip_distance_array_size;
 100
 101    /* The size of the gl_CullDistance[] array, if declared. */
 102    unsigned cull_distance_array_size;
 103
 104    /* Whether or not separate shader objects were used */
 105    bool separate_shader;
 106
 107    /** Was this shader linked with any transform feedback varyings? */
 108    bool has_transform_feedback_varyings;
 109
 110    union {
 111       struct {
 112          /** The number of vertices recieves per input primitive */
 113          unsigned vertices_in;
 114
 115          /** The output primitive type (GL enum value) */
 116          unsigned output_primitive;
 117
 118          /** The input primitive type (GL enum value) */
 119          unsigned input_primitive;
 120
 121          /** The maximum number of vertices the geometry shader might write. */
 122          unsigned vertices_out;
 123
 124          /** 1 .. MAX_GEOMETRY_SHADER_INVOCATIONS */
 125          unsigned invocations;
 126
 127          /** Whether or not this shader uses EndPrimitive */
 128          bool uses_end_primitive;
 129
 130          /** Whether or not this shader uses non-zero streams */
 131          bool uses_streams;
 132       } gs;
 133
 134       struct {
 135          bool uses_discard;
 136
 137          /**
 138           * Whether any inputs are declared with the "sample" qualifier.
 139           */
 140          bool uses_sample_qualifier;
 141
 142          /**
 143           * Whether early fragment tests are enabled as defined by
 144           * ARB_shader_image_load_store.
 145           */
 146          bool early_fragment_tests;
 147
 148          /**
 149           * Defined by INTEL_conservative_rasterization.
 150           */
 151          bool inner_coverage;
 152
 153          bool post_depth_coverage;
 154
 155          /** gl_FragDepth layout for ARB_conservative_depth. */
 156          enum gl_frag_depth_layout depth_layout;
 157       } fs;
 158
 159       struct {
 160          unsigned local_size[3];
 161
 162          bool local_size_variable;
 163
 164          /**
 165           * Size of shared variables accessed by the compute shader.
 166           */
 167          unsigned shared_size;
 168       } cs;
 169
 170       /* Applies to both TCS and TES. */
 171       struct {
 172          /** The number of vertices in the TCS output patch. */
 173          unsigned tcs_vertices_out;
 174
 175          uint32_t primitive_mode; /* GL_TRIANGLES, GL_QUADS or GL_ISOLINES */
 176          enum gl_tess_spacing spacing;
 177          /** Is the vertex order counterclockwise? */
 178          bool ccw;
 179          bool point_mode;
 180       } tess;
 181    };
 182 } shader_info;
 183
 184 #ifdef __cplusplus
 185 }
 186 #endif
 187
 188 #endif /* SHADER_INFO_H */