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 #ifdef __cplusplus
  29 extern "C" {
  30 #endif
  31
  32 typedef struct shader_info {
  33    const char *name;
  34
  35    /* Descriptive name provided by the client; may be NULL */
  36    const char *label;
  37
  38    /* Number of textures used by this shader */
  39    unsigned num_textures;
  40    /* Number of uniform buffers used by this shader */
  41    unsigned num_ubos;
  42    /* Number of atomic buffers used by this shader */
  43    unsigned num_abos;
  44    /* Number of shader storage buffers used by this shader */
  45    unsigned num_ssbos;
  46    /* Number of images used by this shader */
  47    unsigned num_images;
  48
  49    /* Which inputs are actually read */
  50    uint64_t inputs_read;
  51    /* Which inputs are actually read and are double */
  52    uint64_t double_inputs_read;
  53    /* Which outputs are actually written */
  54    uint64_t outputs_written;
  55    /* Which outputs are actually read */
  56    uint64_t outputs_read;
  57    /* Which system values are actually read */
  58    uint64_t system_values_read;
  59
  60    /* Which patch inputs are actually read */
  61    uint32_t patch_inputs_read;
  62    /* Which patch outputs are actually written */
  63    uint32_t patch_outputs_written;
  64
  65    /* Whether or not this shader ever uses textureGather() */
  66    bool uses_texture_gather;
  67
  68    /* Whether or not this shader uses the gl_ClipDistance output */
  69    bool uses_clip_distance_out;
  70
  71    /* Whether or not separate shader objects were used */
  72    bool separate_shader;
  73
  74    /** Was this shader linked with any transform feedback varyings? */
  75    bool has_transform_feedback_varyings;
  76
  77    union {
  78       struct {
  79          /** The number of vertices recieves per input primitive */
  80          unsigned vertices_in;
  81
  82          /** The output primitive type (GL enum value) */
  83          unsigned output_primitive;
  84
  85          /** The input primitive type (GL enum value) */
  86          unsigned input_primitive;
  87
  88          /** The maximum number of vertices the geometry shader might write. */
  89          unsigned vertices_out;
  90
  91          /** 1 .. MAX_GEOMETRY_SHADER_INVOCATIONS */
  92          unsigned invocations;
  93
  94          /** Whether or not this shader uses EndPrimitive */
  95          bool uses_end_primitive;
  96
  97          /** Whether or not this shader uses non-zero streams */
  98          bool uses_streams;
  99       } gs;
 100
 101       struct {
 102          bool uses_discard;
 103
 104          /**
 105           * Whether any inputs are declared with the "sample" qualifier.
 106           */
 107          bool uses_sample_qualifier;
 108
 109          /**
 110           * Whether early fragment tests are enabled as defined by
 111           * ARB_shader_image_load_store.
 112           */
 113          bool early_fragment_tests;
 114
 115          /** gl_FragDepth layout for ARB_conservative_depth. */
 116          enum gl_frag_depth_layout depth_layout;
 117       } fs;
 118
 119       struct {
 120          unsigned local_size[3];
 121
 122          /**
 123           * Size of shared variables accessed by the compute shader.
 124           */
 125          unsigned shared_size;
 126       } cs;
 127
 128       struct {
 129          /** The number of vertices in the TCS output patch. */
 130          unsigned vertices_out;
 131       } tcs;
 132
 133       struct {
 134          uint32_t primitive_mode; /* GL_TRIANGLES, GL_QUADS or GL_ISOLINES */
 135          uint32_t spacing;        /* GL_EQUAL, GL_FRACTIONAL_EVEN, GL_FRACTIONAL_ODD */
 136          uint32_t vertex_order;   /* GL_CW or GL_CCW */
 137          bool point_mode;
 138       } tes;
 139    };
 140 } shader_info;
 141
 142 struct gl_shader_program;
 143 struct gl_linked_shader;
 144
 145 void
 146 copy_shader_info(const struct gl_shader_program *shader_prog,
 147                  struct gl_linked_shader *sh);
 148
 149 #ifdef __cplusplus
 150 }
 151 #endif
 152
 153 #endif /* SHADER_INFO_H */