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