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    /* Number of textures used by this shader */
  41    unsigned num_textures;
  42    /* Number of uniform buffers used by this shader */
  43    unsigned num_ubos;
  44    /* Number of atomic buffers used by this shader */
  45    unsigned num_abos;
  46    /* Number of shader storage buffers used by this shader */
  47    unsigned num_ssbos;
  48    /* Number of images used by this shader */
  49    unsigned num_images;
  50
  51    /* Which inputs are actually read */
  52    uint64_t inputs_read;
  53    /* Which inputs are actually read and are double */
  54    uint64_t double_inputs_read;
  55    /* Which outputs are actually written */
  56    uint64_t outputs_written;
  57    /* Which outputs are actually read */
  58    uint64_t outputs_read;
  59    /* Which system values are actually read */
  60    uint64_t system_values_read;
  61
  62    /* Which patch inputs are actually read */
  63    uint32_t patch_inputs_read;
  64    /* Which patch outputs are actually written */
  65    uint32_t patch_outputs_written;
  66
  67    /* Whether or not this shader ever uses textureGather() */
  68    bool uses_texture_gather;
  69
  70    /* Whether or not this shader uses the gl_ClipDistance output */
  71    bool uses_clip_distance_out;
  72
  73    /* Whether or not separate shader objects were used */
  74    bool separate_shader;
  75
  76    /** Was this shader linked with any transform feedback varyings? */
  77    bool has_transform_feedback_varyings;
  78
  79    union {
  80       struct {
  81          /** The number of vertices recieves per input primitive */
  82          unsigned vertices_in;
  83
  84          /** The output primitive type (GL enum value) */
  85          unsigned output_primitive;
  86
  87          /** The input primitive type (GL enum value) */
  88          unsigned input_primitive;
  89
  90          /** The maximum number of vertices the geometry shader might write. */
  91          unsigned vertices_out;
  92
  93          /** 1 .. MAX_GEOMETRY_SHADER_INVOCATIONS */
  94          unsigned invocations;
  95
  96          /** Whether or not this shader uses EndPrimitive */
  97          bool uses_end_primitive;
  98
  99          /** Whether or not this shader uses non-zero streams */
 100          bool uses_streams;
 101       } gs;
 102
 103       struct {
 104          bool uses_discard;
 105
 106          /**
 107           * Whether any inputs are declared with the "sample" qualifier.
 108           */
 109          bool uses_sample_qualifier;
 110
 111          /**
 112           * Whether early fragment tests are enabled as defined by
 113           * ARB_shader_image_load_store.
 114           */
 115          bool early_fragment_tests;
 116
 117          /** gl_FragDepth layout for ARB_conservative_depth. */
 118          enum gl_frag_depth_layout depth_layout;
 119       } fs;
 120
 121       struct {
 122          unsigned local_size[3];
 123
 124          /**
 125           * Size of shared variables accessed by the compute shader.
 126           */
 127          unsigned shared_size;
 128       } cs;
 129
 130       struct {
 131          /** The number of vertices in the TCS output patch. */
 132          unsigned vertices_out;
 133       } tcs;
 134
 135       struct {
 136          uint32_t primitive_mode; /* GL_TRIANGLES, GL_QUADS or GL_ISOLINES */
 137          uint32_t spacing;        /* GL_EQUAL, GL_FRACTIONAL_EVEN, GL_FRACTIONAL_ODD */
 138          uint32_t vertex_order;   /* GL_CW or GL_CCW */
 139          bool point_mode;
 140       } tes;
 141    };
 142 } shader_info;
 143
 144 struct gl_shader_program;
 145 struct gl_linked_shader;
 146
 147 void
 148 copy_shader_info(const struct gl_shader_program *shader_prog,
 149                  struct gl_linked_shader *sh);
 150
 151 #ifdef __cplusplus
 152 }
 153 #endif
 154
 155 #endif /* SHADER_INFO_H */